JP2004057090A - Combine - Google Patents

Abstract

[PROBLEMS] To remove clogging of a harvested grain culm at a junction X2 in a combine provided with a pair of left and right root merger / conveyance chains 33L and 33R for holding and conveying each of the left and right harvested grain culm strain bases. Make it easy and easy to do.
A pair of right and left harvested culm stock roots are conveyed and conveyed to join each other. A slide shaft 91 that supports the rotating wheels 87 and 88 that are supported by the transfer frame 90 so as to be movable in the direction of the distance to the other stock merger transfer chain 33R, and a groove 94 provided in the slide shaft 91 is provided on the transfer frame 90 side. A position holding mechanism 93 is provided for inserting the pin 95 in a direction orthogonal to the perspective direction to restrict the movement of the slide shaft 91 in the perspective direction and to hold the rotating wheels 97 and 88 at the approach position.
[Selection] Fig. 9

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a combine for threshing by transporting a grain culm in a field to a mowing and threshing unit at a mowing unit.
[0002]
[Prior art]
Conventionally, in a combined harvesting grain culm conveying device provided with a pair of left and right stock mill merging and conveying chains that pinch and convey each of the left and right mowing grain culm stems to merge, one of the stock mill merging and conveying chains is provided. A rotatable wheel that winds and supports the transfer end portion of the original merged transfer chain is provided so as to be displaceable in the perspective direction with respect to the other stock merged transfer chain, and a position holding mechanism that holds the rotary wheel at the approach position is provided, When the harvested culm at the junction is clogged, the position of the rotating wheel is released at the approaching position and released to the separated position, thereby increasing the distance between the stocking unit and the transfer chain at the junction. , The removal of the clogged culm at the confluence is performed.
[0003]
[Problems to be solved by the invention]
However, using a cam with an operating lever as described in Japanese Patent Application Laid-Open No. H11-1276663 as the position holding mechanism, the rotating wheel is moved to the original approach position after the clogging is released as compared with a mechanism using a bolt and a nut. There is an advantage that the position can be easily maintained, but in order to release the position holding at the approach position of the rotating wheel by rotating the cam, the clogging reaction force of the harvested cereal culm at the confluence portion (the stock source at the confluence portion) The harvested culm firmly clogged between the consolidation transport chains resists the force acting in the confluence part on the stock former consolidation transport chain in the direction of expanding these distances, that is, the force acting on the rotating wheel in the direction of retracting it. The rotating wheel must be once further advanced from the approach position (to reduce the interval of the stock merger / conveyance chain at the merging portion), and a large amount of operating force is required to rotate the cam. It is impossible to rotate the cam by hand, etc.In fact, hitting the operation lever with a hammer etc. and rotating the cam releases the position holding at the approaching position of the rotating wheel, and the harvested grain culm at the junction There is a problem that a great deal of labor is required to clear the clogs, so it is easy to maintain the position at the approaching position of the rotating wheel and release it, and to easily clear the clogged harvested culm at the junction with good workability. It is a primary object of the present invention to provide a combine that can be used.
[0004]
[Means for Solving the Problems]
Therefore, the present invention winds and supports the transfer end portion of one of the stock source combined transfer chains, of the pair of left and right share source combined transfer chains that pinch and transfer each of the left and right harvested grain culm strain base portions to join. A slide shaft for supporting the rotating wheel on the transfer frame so as to be movable in the perspective direction with respect to the other joint source transfer chain, and a pin provided on the transfer frame side in a groove provided on the slide shaft in a direction perpendicular to the perspective direction. And a position holding mechanism for holding the rotating wheel at the approaching position by restricting the movement of the slide shaft in the near and far directions by moving the rotating shaft forward from the approaching position by pulling out the pin from the groove. It is intended to easily release the holding of the position at the approach position without causing the clogging of the harvested grain culm at the confluence part with good workability.
[0005]
Further, the slide shaft is constituted by two parallel shafts, and one of the two slide shafts is provided with a groove for inserting the pin, and the rotating wheel is moved in the perspective direction. This suppresses the occurrence of a wrinkle and smoothly moves the rotating wheel.
[0006]
Further, a stopper member for pressing an end of the pin opposite to the side to be inserted into the groove and an operation lever for rotating the stopper member about an axis parallel to the pin are formed of one plate material. The rotation of the operation lever causes the rotating wheel to maintain its position at the approaching position of the rotating wheel and release the position, and the clogging of the harvested cereal culm at the confluence is easily performed with a non-tool with good workability.
[0007]
Also, the groove is provided in a ring shape on the outer surface of the slide shaft with a half-moon cross section, and the end face of the pin inserted into the groove is formed as a spherical surface having the same radius of curvature as the groove. The reaction force causes the pin to be pulled out of the groove and the rotating wheel to be retracted to the separated position.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall side view of the combine, and FIG. 2 is an overall plan view of the combine. In the figure, reference numeral 1 denotes a track frame on which left and right traveling crawlers 2 are mounted; A threshing unit that stretches the chain 5 to the left and has a handling drum 6 built-in, 7 is a 6-row cutting unit provided in front of the threshing unit 4, 8 is a straw processing unit that faces the end of a straw chain 9, Reference numeral 10 denotes a grain tank for carrying the grains from the threshing unit 4 via a fryer cylinder 11, 12 a discharge auger for discharging the grains of the grain tank 10 out of the machine, 13 an operation operation unit 14 such as a steering wheel and the like. The driving cabin 16 having the driver's seat 15 is an engine provided below the driving cabin 13, and is configured to continuously cut the culm by the cutting unit 7 and thresh by the threshing unit 4 while traveling and moving in a field. .
[0009]
As shown in FIGS. 3 and 4, the right and left mowing mounting frames 17 are set up from the front end of the machine base 3 on the front side of the threshing unit 4, and the split pipe joint 18 is provided on the upper part of each mowing mounting frame 17, while the engine 16 A cutting input case 20 for interpolating a cutting input shaft 19 for transmitting power from the cutter is provided in the cutting unit 7, and both ends of the cutting input case 20 are rotatable on the upper portions of the left and right cutting mounting frames 17 via split pipe joints 18. And the cutting input case 20 is supported horizontally horizontally in the lateral direction of the machine immediately before the threshing unit 4, and extends integrally from the intermediate portion of the cutting input case 20 downward and forward. A vertical transmission case 21 to be provided, a horizontal transmission case 22 that integrally connects an intermediate portion to a tip of the vertical transmission case 21 and horizontally supports the body horizontally in the left-right direction at the tip of the vertical transmission case 21, and horizontally connects a rear portion. Frame 2 The cutting section 24 is integrally connected in parallel with the horizontal transmission case 22 from the horizontal transmission case 22 by integrally connecting the rear portion of the cutting frame 24 to the horizontal transmission case 22. The cutting input shaft 20, the vertical transmission case 21, the horizontal transmission case 22, and the cutting frame 24 are extended as a main frame of the cutting unit 7, and components of the cutting unit 7 described later are assembled to the main frame. The reaping unit 7 is configured, and a hydraulic cylinder 25 is stretched between the machine base 3 and the vertical transmission case 21, and the reaping unit 7 is moved up and down about the reaping input case 20 by extending and retracting the hydraulic cylinder 25. It is configured as follows.
[0010]
The cutting section 7 of the 6-row cutting includes seven weeding plates 27 for 6 rows for separating the culm to be cut from the uncut culm and separating the culm to be cut for each row. A pre-processing mechanism including six raised cases 29 having raised tines 28 for raising the cut culms, and two raised right-sided grain culms R introduced from between the two right raised cases 29. A right star wheel 30R, which is a pair of right rubbing wheels, and a pair of right and left rubbing belts 31R, which are a pair of right protruding belts. A left star wheel, which is a pair of left and right swirling wheels, which is a pair of left and right wheels that squeezes the roots of the two left-hand grain culms L introduced from between the two raising cases 29 into one bundle and rakes them into one bundle. 30L and a pair of left and right left protrusion belts 31L, which are a pair of left protrusion belts, and are guided from between two center raising cases 29. The central star wheel 30C, which is a pair of left and right central raking wheels, and a pair of central left and right pairs of the left and right pairs of grain stems C of the cereal culm C for two central lines after the raising A scraping mechanism including a central scraping belt 31C, which is a belt with projections; a cutting mechanism including a clipper-shaped cutting blade 32, which simultaneously cuts six stems of the grain stalk at the time of scraping; and a set of right star wheels 30R. And a right root joint transfer chain 33R for nipping and transporting the root portion of the right two cut grain culms R squeezed by the right raking belt 31R to the upper left after the slant, and a set of a left star wheel 30L and A left stock that clamps and conveys the root of the cut culm L for the left two streaks squeezed by the left raking belt 31L to the upper right after being inclined obliquely and merges with the transport end of the right root merger transport chain 33R. Former merger transport chain 33L, a set of right star wheel 30R and Two sets of central star wheels 30C and a central scraping belt 31C disposed between the scraping belt 31R and the pair of left star wheels 30L and the left scraping belt 31L, and cutting of two central strips scraped by the central scraping belt 31C. The root portion of the cereal culm C is located between the left and right convergence transport chains 33L and 33R, and is pinched and conveyed to the upper right after being slanted right. L, a central stock unit merging and transporting chain 33C that is joined before the merging portion with the stocking unit of L, and six rows of harvested grain culm L merged by the left and right and central stocker merging and conveying chains 33R, 33L, 33C. A vertical transport chain that inherits the root portions of R and C from the transport end portion of the right root junction merging transport chain 33R, and pinches and transports the diagonally left upper portion to the transport start end of the feed chain 5 of the threshing unit 4 to carry it. And the stock transfer chain. Auxiliary stock transfer chains 35 and 36 for transferring and transferring the roots of cut culms L, R, and C for six rows in a proper posture from the transfer end of the chain 34 to the transfer start end of the feed chain 5. A right spike transfer tine 37R that locks and transfers the spikes of the right two rows of cutting cereal stems R that are nipping and conveying the stock by the right spike joint transfer conveyor 33R, and the left. The left spike carrying tine 37L that locks and conveys the tip of the left two rows of harvested grain culm L that is nipping and carrying the stock part by the stock former merging and conveying chain 33L, and the stock stem by a central stem merging and conveying chain 33C. The head part of the central spike tine 37C that locks and conveys the head part of the cut culm C for two central lines that is nipping and conveying the part, and the stock base transfer chain 34 and the auxiliary stock base transfer chains 35 and 36 6 rows of harvested grain culm L, R, The rear spike tine 38 that locks and conveys the spike portion of the stalk, and the spike portion of the two right-handed grain stalks R after the raising that is introduced from between the two right-side raising cases 29, and Further above the transport start end, upper right tip transport tine 39R locked and transported on the opposite side of right ear tip transport tine 37R, and two raised left-hand grains introduced from between the two left raising cases 29. The head of the culm L is moved further above the transport start end of the left ear tip tine 37L, from the upper left tip tip tine 39L which is locked and transported on the opposite side of the left ear tip tine 37L, and between the two center raising cases 29. The central upper tip transport that locks and transports the ears of the grain culm C for the central two rows after being introduced, on the opposite side of the central ear transport tine 37C, further above the transport start end of the central tip transport tine 37C. Tine 39C Ranaru and a grain 稈搬 feed mechanism consisting of cereal 稈穂 destination transport mechanism.
[0011]
As shown also in FIG. 5, the left and right star wheels 30L, 30R, 30C of each set of the left and right and the center are integrally attached to the lower ends of the left and right rotating shafts 40a, 40b, which are two parallel axes, respectively. The left and right star wheels 30L, 30R, and 30C of the pair are engaged with each other and rotated, and the left and right scraping belts 31L, 31R, and 31C of the left and right and center pairs are set such that their transport end portions are at the upper ends of the left and right rotation shafts 40a and 40b. In addition to being wound and supported by the large diameter pulley 41 attached integrally, the transport start end is wound and supported by the small diameter pulley 42 which is supported in front of the large diameter pulley 41, and the same pair of left and right scraping belts 31 </ b> L and 31 </ b> R are provided. , 31C are stretched in a C-shape that opens greatly toward the front, and power is transmitted to one of the left and right rotation shafts 40a, 40b to drive and rotate, thereby rotating the rotation shaft 40a or 40b. The star wheels 30L, 30R, 30C and the scraping belts 31L, 31R, 31C attached to the 40b are driven to rotate, and the star wheels 30L, 30R, 30C and the scraping belts 31L, 31R attached to the other rotating shaft 40a or 40b. 31C is driven to rotate, and the left pair of star wheels 30L, 30R, 30C and the scraping belts 31L, 31R, 31C and the right pair of star wheels 30L, 30R, 30C and the scraping belts 31L, 31R, 31C of the same set are rotated in opposite directions. It is configured to rotate and rake the culm L, R, C.
[0012]
Also, of the pair of right star wheel 30R and right scraping belt 31R, a right stock former merging and conveying chain is provided at an intermediate portion of the right rotating shaft 40b on which the right star wheel 30R and right scraping belt 31R are mounted. The driven sprocket 43R that winds and supports the transport start end of the roller 33R is supported by an engaging shaft, and of the pair of right and left star wheels 30R and 31R, a pair of right and left star wheels 30R and 31R is formed. A right stock source merging transport chain 33R is stretched from the space to a position substantially above a connecting portion between the vertical transmission case 21 and the horizontal transmission case 22, and a pair of left and right star wheels 30L and a left scraping belt 31L are paired on the left and right. A driven shaft that winds and supports the transport start end of the left stock former merging and transporting chain 33L in the middle of the left rotating shaft 40a where the left star wheel 30L and the left scraping belt 31L are mounted. The rocket 43L is engaged and supported, and the left and right starwheels 30L and 31L of the pair of left and right starwheels 30L and 31L are paired with the left and right starwheels 30L and 31L. The left stock source merging / conveying chain 33L is stretched to a position just above the connecting end of the left stock merging / conveying chain 33L, and a pair of right and left central star wheels 30C and a central scraping belt are provided. A driven sprocket 43C, which winds and supports the transport start end of the central stock merge transport chain 33C, is provided at an intermediate portion of the left rotary shaft 40a on which the left star wheel 30C and the left scraping belt 31C are mounted. Of the pair of central star wheel 30C and central scraping belt 31C, a pair of left and right star wheels 30C and scraping belt 31C support the vertical transmission cable. At the position substantially above the connection between the horizontal transmission case 21 and the left transmission root 22, the left root joint merging and conveying chain before the merging part with the root of the cutting culm L for the left two rows of the right root merging and conveying chain 33 </ b> R. The central stock merge transport chain 33C is stretched to just before the transport end portion of 33L, and the left and right and center star wheels 30L, 30R, 30C and the scraper are rotated by the rotation of the left and right and central stock merge transport chains 33L, 33R, 33C. The belts 31L, 31R, and 31C are configured to rotate.
[0013]
Further, the center star wheel 30C and the scraping belt 31C are supported by being shifted to a position higher by one step than the left and right star wheels 30L and 30R and the scraping belts 31L and 31R. The belts 31L, 31R, the central star wheel 30C and the scraping belt 31C are configured to prevent interference.
[0014]
As shown in FIG. 6, a vertical transmission shaft 44 that connects the upper end to the cutting input shaft 19 via a bevel gear is inserted into the vertical transmission case 21, and the lower end of the vertical transmission shaft 44 is connected via a bevel gear. A horizontal transmission shaft 45 for interlocking connection of the intermediate portion is inserted into the horizontal transmission case 22, and from among the vertical transmission shaft 44 and the horizontal transmission shaft 45, power of a driving component is extracted from each of the components of the mowing unit 7. From the left end of the transmission case 22, the raised vertical transmission cage 46 is raised in a forwardly inclined posture toward the upper position of the raised case 29 in a side view, and horizontally raised rightward from the upper end of the raised vertical transmission cage 46 to the right. The case 47 is extended, the raising drive case 48 for each raising case 29 is extended downward from the raising horizontal transmission case 47, and the lower part of each raising drive case 48 faces the upper back side of each raising drive case 48. Not each An elevating tine drive shaft 49 is protruded from the lower end of the elevating drive case 48 to the inside upper part of each elevating case 29, and the protruding end portion winds and supports the upper part of a tine chain in which the elevating tines 28 are attached at equal intervals. A sprocket 50 is provided, and the lower end is inserted into the raising vertical transmission cage 46 and the lower end is interlocked to the left end of the horizontal transmission shaft 45 via a bevel gear, and the lower end is inserted into the raising horizontal transmission case 47. A raising horizontal transmission shaft 52 interlockingly connected to the upper end of the raising vertical transmission shaft 51 via a bevel gear, and an upper end inserted into each raising driving case 48 and interlockingly connecting to the raising horizontal transmission shaft 52 via a bevel gear; The lower portion and the raising drive shaft 53 interlockingly connected to the raising tine drive shaft 49 via a bevel gear, and the horizontal transmission shaft 45 causes the raising tine driving shaft of each raising case 29 to move. A power transmission mechanism is configured to transmit power to the power transmission unit 50, and a raising transmission case 55 containing a raising transmission mechanism 54 is provided above the raising vertical transmission cage 46, and the raising transmission mechanism 54 is provided in the middle of the raising vertical transmission shaft 51. The drive speed of the raising tine 28 of each raising case 29 is changed to a high speed, a medium speed, and a low speed.
[0015]
The cutting blade 32 is configured such that the movable blade is divided into two at the center of the cutting width, and the left and right movable blades 32 are reciprocated in opposite directions to cancel the vibration. The crankshaft 56a, which is the left cutting blade drive shaft, is raised upward from a little inside from the left end of the horizontal transmission shaft 45 via the bevel gear, and the right side of the horizontal transmission shaft 45 is the crankshaft, which is the right cutting blade drive shaft via the bevel gear. The shaft 56b is raised upward, the left and right crankshafts 56a, 56b are projected upward from the horizontal transmission case 22, and the power of the left and right movable blades 32 is extracted from the horizontal transmission shaft 45.
[0016]
Further, of the transport chains and the transport tines constituting the grain culm transport mechanism, the power of the auxiliary stock source transport chains 35 and 36 and the rear spike transport tine 38 is taken out from the upper portion of the vertical transmission shaft 44, and the vertical transmission case is used. A rear transport drive case 57 is provided to extend leftward from the upper part of the 21, and a rear transport drive shaft 58 is provided to be inserted into the rear transport drive case 57 and to link the right end to an upper portion of the vertical transmission shaft 44 via a bevel gear, A drive sprocket 59 of one auxiliary transfer chain 36 and a rear spike tine drive sprocket 60 for windingly supporting a transfer end portion of the tine chain for mounting the rear spline tine 38 at equal intervals are provided. The left end of the drive shaft 58 is interlocked and connected via a bevel gear, and the drive sprocket 59 of one of the auxiliary transfer chains 36 from above the vertical transmission shaft 44 is connected to the drive sprocket 59. A power is transmitted to the tip transport tine drive sprocket 60, and a drive sprocket 63 of the other auxiliary transport chain 35 is provided on a driven sprocket shaft 62 of one auxiliary transport chain 36, and power is supplied to the drive sprocket 63. It is configured to communicate.
[0017]
Further, the power of the stock transfer chain 34, the right stock transfer chain 33R and the right ear transfer tine 37R is taken out from the middle part of the vertical transmission shaft 44. The right transport drive case 64 is set up at right angles to the rotation plane, and the vertical transport drive case 65 is extended from the lower part of the right transport drive case 64 toward the upper left diagonal. Then, the lower end is interlockingly connected to the intermediate portion of the vertical transmission shaft 44 via a bevel gear, and the right transport drive shaft 67, and the lower end is inserted into the vertical transport drive case 65 and the lower end is located below the right transport drive shaft 67 via a bevel gear. A vertical transfer transmission shaft 68 is provided for interlocking connection, and a right stock former transfer chain drive sprocket 69 for winding and supporting the transfer end of the right stock former transfer chain 33R and a right ear tip transfer tine 37R are attached at equal intervals. A right spike transport tine drive sprocket 70 that winds and supports the transport end of the tine chain is provided on a right transport drive shaft 67, and a lower end thereof is provided on a vertical transport drive shaft 71 that is operatively connected to a vertical transport drive shaft 68 via a bevel gear. A stock feed chain drive sprocket 72 for winding and supporting the transfer start end of the stock feed chain 34 is provided, and a right stock feed transfer drive sprocket 69 and a right spike transfer tine drive sprocket 70 are provided from an intermediate portion of the vertical transmission shaft 44. Power is transmitted to the stock transport chain drive sprocket 72.
[0018]
In addition, the power of the left stock former transfer chain 33L and the left ear tip transfer tine 37L is taken out from the left end of the horizontal transmission shaft 45 via the raised vertical transmission shaft 51, and rightward from the intermediate portion of the raised vertical transmission cage 46, and A left transfer drive case 73 extends in parallel with the rotation plane of the left stock transfer chain 33L, and is inserted into the left transfer drive case 73 to link the left end to an intermediate portion of the vertical drive shaft 51 via a bevel gear. A non-transport side of a tine chain in which a left-transport drive chain drive sprocket 75 and a left spike transport tine 37L for winding and supporting the non-transport-side intermediate portion of the left-source transport chain 33L are provided at equal intervals. The left spike transport tine drive sprocket 76 for winding and supporting the intermediate portion is provided. The right end of the left transport drive shaft 74 is interlocked to the intermediate portion of the drive sprocket shaft 77 via a bevel gear, It is configured so as to transmit power to the left stock based transport chain drive sprocket 75 and the left fore conveying tines driving sprocket 76 from the left end of the transmission shaft 45.
[0019]
In addition, a central stock that takes out the power of the central stock feed transfer chain 33C and the center tip feed tine 37C from the intermediate portion of the horizontal transmission shaft 45 by a driving structure described later and winds and supports the transfer end of the central stock feed transfer chain 33C. The power is transmitted to a center sprocket drive tine drive sprocket 79 that winds and supports a transfer end portion of the tine chain in which the original transfer chain drive sprocket 78 and the center spike tine 37C are attached at equal intervals.
[0020]
As described above, the right stock transfer chain 33R and right spike transfer tine 37R, the left stock transfer chain 33L and left spike transfer tine 37L, the central stock transfer chain 33C and the center spike transfer tine 37C, respectively. To the right stock former transport chain 33R and the right ear forward transport tine 37R, and the left stock former transport chain 33L and the left ear forward transport tine 37L. By independently driving the right star wheel 30R and the right scraping belt 31R, the left star wheel 30L and the left scraping belt 31L, and the central star wheel 30C and the center scraping belt 31C independently, the left and right and right and left Central star wheel with continuous star wheels 30L, 30R, and 30C interlocking with each other To prevent troubles such as breakage of each star wheel L, 30R, 30C due to an excessive load caused by omitting the drive structure of the central scraping belt 31C, the central stock transport chain 33C, and the center tip transport tine 37C. It is composed.
[0021]
As shown in FIGS. 7 and 8, the power of the central stock transfer chain 33C and the center tip transfer tine 37C is taken out from the intermediate portion of the horizontal transmission shaft 45, and the intermediate portion of the horizontal transmission case 22 (the horizontal transmission case 22). The central transfer drive case 80 is set up at right angles to the rotation plane of the central stock transfer chain 33C from the left side of the connection with the vertical transmission case 21), and the transfer start end of the central stock transfer chain 33C is wound. The central transport drive case 80 is set up at a position (immediately after) near the rear side of one (left) central star wheel 30C provided on the coaxial 40a with the driven sprocket 43C to be rotated and supported. A transmission case 81 extends rearward diagonally right toward the transfer end of the stock transfer chain 33C in parallel with the rotation plane of the central stock transfer chain 33C. Then, the lower end is interlocked to the intermediate portion of the horizontal transmission shaft 45 via a bevel gear, and the upper end is inserted into the front inside of the transmission case 81. And a rear central transport drive shaft 83 that rises at right angles to the rotation plane of the central stock transport chain 33C from the rear of the transmission case 81 toward the transport end of the central stock transport chain 33C, A center stock transfer chain drive sprocket 78 for winding and supporting the transfer end of the center stock transfer chain 33C and a center tip transfer tine 37C are mounted at equal intervals. A center tip transfer tine drive sprocket for winding and supporting the transfer end of the tine chain. 79 is provided on the rear central transport drive shaft 83, and is provided at the upper end of the front central transport drive shaft 82 to be inserted inside the front of the transmission case 81. A rocket 84, an input sprocket 85 provided at the lower end of a rear central transport drive shaft 82 inserted inside the rear of the transmission case 81, and an upper end of the front central transport drive shaft 82 and a rear central transport via the sprockets 84, 85. A transmission chain 86 stretched between the lower end of the drive shaft 83 and interlockingly connecting the front central transport drive shaft 82 and the rear central transport drive shaft 83 is inserted into the transmission case 81, and the transmission chain 86 is moved from the horizontal transmission shaft 45. A side view crank-shaped transmission path for transmitting power to the central stock transfer chain drive sprocket 78 and the center tip transfer tine drive sprocket 79 is formed. It is configured to transmit power to the center tip transport tine drive sprocket 79.
[0022]
The central stock transport chain 33C is, as described above, a set disposed between the set of the right star wheel 30R and the right rake belt 31R and the set of the left star wheel 30L and the left rake belt 31L. The central part of the cut culm C of two rows raked by the central star wheel 30C and the central raking belt 31C is positioned between the right and left root joint convey chains 33L and 33R, and is inclined rightward. It is pinched and conveyed upward, and is joined before the confluence with the root of the cut culm L of two cuts of the right stump merged and conveyed chain 33R, and is conveyed by the right stump merged and conveyed chain 33R. In the junction X1 between the root of the cut culm R for the right two rows and the root of the cut culm C for the center two that is pinched and transported by the central root junction transport chain 33C, the right strain It is pinched and conveyed by the original merging transport chain 33R. With respect to the root portion of the cut culm R of two sides, the root portion of the cut culm C of two central lines, which is pinched and transported by the central root transport chain 33C, is transported by the central root transport chain 33C. To join from the part.
[0023]
As is clear from the above, left and right and central stock former merging and conveying chains 33L, 33R, 33C for holding and conveying each of the left and right and central mowing culms L, R, and C stock roots are provided. And the left and right and central scraping wheels 30L, 30R, 30C for scraping the left and right and central mowing grain culms L, R, C stock are provided at the transport start end of the central root joint transport chains 33L, 33R, 33C. In the combined combine, a central transport drive case 80 that rises near the rear side of the central scraping wheel 30C, and power is supplied from the central transport drive case 80 toward the transport end portion of the stock merging transport chain 33C at the center. A transmission case 81 for transmitting power is provided, and power is transmitted from the transmission case 81 to a drive wheel 78 that winds and supports the transport end portion of the central stock merge transport chain 33C. Department The central transport drive case 80 is raised at a position away from the transport path and further away from the junction X1, and rises to a position near the transport path of the cutting grain culm R, C stock roots and near the junction X1. In addition to eliminating the central transport drive case 80, a space S is provided below the transmission case 81 so as to prevent the harvested culm R and C stocks from being caught in the middle of transport and the accumulation of straw grass, mud, and the like. It is composed.
[0024]
Also, in plan view, the central transport drive case 80 is raised from the lateral transmission case 22 so that the front central transport drive shaft 82 is located on the left side of the rear central transport drive shaft 83, and the left stock transport chain 33L is driven to the left. In the same direction (rearward rightward direction) as the transport direction (rearward rightward direction) of the cut grain culm L for two rows, transmission is performed from the front central transport drive shaft 82 to the rear central transport drive shaft 83 to transmit power. 81 is disposed below the non-transporting side of the central stock transfer chain 33C between the transfer working side of the left stock transfer chain 33L and the transfer working side of the central stock transfer chain 33C, and the transmission case 81 is installed. Are provided in a direction parallel to or to the rear of the transfer operation side of the left stock transfer chain 33L, and the center transfer drive case 80 and the transmission case 81 are cut by the left stock transfer chain 33L to cut the left two rows. Cereal stem L Are configured to prevent a by conveying disorders and central lines based on the transport chain 33C of a strain base portion becomes the conveyance failure of a strain base portion of the cutting culms C of the central Article 2 min.
[0025]
Further, by raising the central transport drive case 80 from the horizontal power transmission case 22 instead of the vertical power transmission case 21, it is possible to prevent the harvested culm R and C stocks from being caught in the middle of transportation and to prevent the accumulation of straw grass and mud. And the central transport drive case 80 and the transmission case 81 are unable to transport the root of the cut culm L for the left two streaks due to the left root transport chain 33L and the center due to the central root transport chain 33C. The position of the front and rear positions and the left and right positions of the central transport drive case 80 and the setting of the transmission direction by the transmission case 81 can be easily performed so as not to obstruct the transport of the root portion of the cut culm C for two rows. Make up.
[0026]
The transmission from the front central transport drive shaft 82 to the rear central transport drive shaft 83 may be performed by a transmission belt or a transmission shaft other than the transmission chain 86.
[0027]
As shown in FIGS. 9 to 12, the left stock former transport chain 33 </ b> L is, as described above, a cut-away grain culm L for two left streaks scraped by a pair of left star wheel 30 </ b> L and left scraping belt 31 </ b> L. The right root of the joint is conveyed to the rear end of the right root merger / conveyance chain 33R, and the right two roots are conveyed by the right root merger / conveyor chain 33R. A total of four stems of the culm R and the root of the cut culm C for two central lines and the root of the cut culm R and C for a total of four lines and the left two lines that are nipped and conveyed by the left consolidation transfer chain 33L. At the junction X2 of the harvested grain culm L with the root of the stock, the left root of the transport chain for the four rows of harvested cereal R, C, which is pinched and transported by the right root of the combined transport chain 33R. The root part of the cut culm L for two left streaks that is pinched and transported by the 33L So it is merged from the transfer terminal end portion of 33L.
[0028]
The rotating wheels 87 and 88, which are grain cultivation inheriting wheels that wind around and support the transfer end portion of the left stock former transfer chain 33L, mount a bracket 89 that rotatably supports them on the transfer end portion of the left stock former transfer chain 33L. Is fixed to the slide shaft 91 attached to the transfer frame 90 movably in the perspective direction with respect to the right stock transfer chain 33R opposite to the right stock source transfer chain 33R, and attached to the transfer frame 90 movably in the perspective direction. Is made of a pipe material having a circular cross section into which a slide shaft 91 made of a solid round bar material is inserted from one end thereof. The slide shaft 91 is supported on one end side of the transfer frame 90 so as to be movable in the perspective direction, and is transferred. The insertion end of the slide shaft 91 is brought into contact with the inner surface which is slightly smaller than the length of the slide shaft 91 from the end of the frame 90 so that the slide shaft 91 is inserted. An inward step 92 for regulating the amount is formed, and the slide shaft 91 is supported on one end side of the transfer frame 90 so as to be movable in the perspective direction with one end of the slide shaft 91 always protruding from one end of the transfer frame 90. I have. As described above, the transfer frame 90 and the slide shaft 91 have the same relationship as the cylinder and the piston rod, and the transfer frame 90 corresponds to the cylinder and the slide shaft 91 corresponds to the piston rod. Then, even when the slide shaft 91 is most inserted into the transfer frame 90, the bracket 89 is fixed to one end of the slide shaft 91 protruding from one end of the transfer frame 90, and the rotating wheels 87, 88 can be freely moved in the perspective direction. It is configured to be attached to the transport frame 90.
[0029]
The rotating wheels 87 and 88 normally hold the rotating wheels at the approaching positions shown in FIGS. 9 and 10, and the intervals between the left and right stock transport chains 33L and 30R at the merging portion X2 (transport passage width of the harvested grain culm). The position holding mechanism 93 for holding the rotating wheels 87 and 88 at the approaching position by narrowing Y to prevent the occurrence of conveyance failure such as posture disturbance or falling off even with a small amount of harvested grain culm. Provided.
[0030]
The position holding mechanism 93 restricts the movement of the slide shaft 91 in the perspective direction by inserting a pin 95 provided on the transport frame 90 side into a groove 94 provided in the slide shaft 91 in a direction orthogonal to the perspective direction. The grooves 87 and 88 are held at the approaching position. The grooves 94 are provided in a semicircular cross section on the outer surface of the slide shaft 91 in a ring shape, and when the rotating wheels 87 and 88 are at the approaching position, the transport frame 90 is held. The groove 94 is provided at a position apart from the insertion end of the insertion portion of the slide shaft 91, which is approximately half the insertion length, while the pin 95 is formed of a short round bar. The end face on the side inserted into the groove 94 is formed as a spherical surface having the same radius as the radius of curvature of the groove 94, and the end face on the side opposite to the side inserted into the groove 94 is also formed as a spherical surface. In a direction perpendicular to the direction, and are vertically movable furnished short cylindrical pin holder 96 which is fixed startup and at right angles to the pivoting plane of the left stock original conveying chain 33L. Further, the pin holder 96 is provided at an outer surface position of the transport frame 90 which is located immediately above the groove 94 when the rotating wheels 87 and 88 are at the approach position, and an inner hole in which the pin 95 is provided is formed in the transport frame 90. It communicates inside. Thus, when the rotating wheels 87 and 88 are in the approaching position, the groove 94 moves directly below the pin 95 provided in the pin holder 96, and the pin 95 moves down inside the pin holder 96 by its own weight, and The lower end is automatically inserted into the groove 94 in a direction orthogonal to the perspective direction.
[0031]
The length of the pin 95 and the pin holder 96 is such that when the lower end of the pin 95 is inserted into the groove 94, the top of the pin 95 is flush with the upper end of the pin holder 96, and the lower end of the pin 95 is the groove. The pin 95 is formed so as to have a length relationship such that the top of the pin 95 protrudes from the upper end of the pin holder 96 by the depth of the groove 94 when it comes off the slide shaft 91 and rides on the outer surface of the slide shaft 91.
[0032]
The position holding mechanism 93 includes a retaining member 97 for pressing a head, which is an end of the pin 95 on the side opposite to the side inserted into the groove 94, and a shaft 98 parallel to the pin 95. An operation lever 99 for rotational operation is provided at the center, and the stopper member 97 and the operation lever 99 are formed of one plate material. The boss 100 is rotatably fitted to the outside of the shaft 98 from the outer surface of the boss 100. The retaining member 97 extends in one direction, and the operation lever 99 extends in the opposite direction. In addition, the shaft 98 is provided between the outer surface of the transfer frame 90 and the left base of the U-shaped bracket 101 having an open portion extending downward between the transfer operation side and the non-transfer operation side of the left base transfer chain 33L. It is erected at right angles to the upper surface parallel to the rotation plane of the transfer chain 33L, and the retaining member 97 and the operation lever 99 are connected via the boss 100 to the transfer operation side and the non-transfer operation side of the left stock original transfer chain 33L. And a plane including the upper end surface of the pin holder 96, which is higher than the upper surface of the left strain source transfer chain 33L, the retaining member 97, and the operating lever 99. The retaining member 97 and the operation lever 99 are rotated about a shaft 98 at a height where the lower surfaces coincide. Further, the operation lever 99 extends from the outer surface of the boss 100 toward the left outside of the reaper 7. Also, of the two side pieces of the bracket 101 facing each other in the moving direction of the slide shaft 91, one is fixed to the corner formed by the front side piece and the transfer frame 90 from the bent part of the L-shaped lever support frame 102, and the other is fixed. The stopper member 97 extends to the lower surface of the middle part of the operation lever 99 when the rotation member moves to the upper surface of the pin holder 96, and the hole 103 formed in the operation lever 99 and the hole formed in the other end of the lever support frame 102. The operation lever 99 is fixed at a position where the retaining member 97 rotates to the upper surface of the pin holder 96 by inserting the snap pin 105 through the 104. In addition, an inclined stopper 106 is provided to extend obliquely upward from one side of the plate-shaped retaining member 97, and before the retaining member 97 is rotated to the upper surface of the pin holder 96 by the rotation operation of the operation lever 99. The stopper 106 is passed through the upper surface of the pin holder 96 to smoothly rotate the retaining member 97 to the upper surface of the pin holder 96. When the retaining member 97 is rotationally moved to the upper surface of the pin holder 96, The tip of the stopper 106 is brought into contact with the frame 107 fixed to the rear side piece, so that the rotation of the operation lever 99 is stopped when the retaining member 97 rotates to the upper surface of the pin holder 96.
[0033]
Separately from the slide shaft 91, a slide shaft 108 is provided which is inserted into and supported by both side pieces at the tip end side of the bracket 101 on the opposite side to the transfer frame 90, and is movably attached to the transfer frame 90 in the perspective direction. The bracket 89 is fixed to the end of the shaft 108 in the same manner as the slide shaft 91, and the slide shaft is constituted by two parallel shafts 91 and 108. The opposite side of the fixed end of the bracket 89 is the bracket 101. At the end of the slide shaft 108 protruding from the front side piece, a disk-shaped stopper 109 for restricting the movement of the slide shafts 91 and 108 in the approaching direction is detachably bolted and provided, and the rotating wheels 87 and 88 are provided. When the groove 94 moves to the approach position and the groove 94 moves directly below the pin 95, the stopper 109 contacts the front side piece of the bracket 101. So that the stop moving the approaching direction of the slide shaft 91,108 Te.
[0034]
As shown in FIGS. 9 and 10, when the rotating wheels 87 and 88 are in the approaching position, the two slide shafts 91 and 108 protrude greatly from the transport frame 90 and the bracket 101, and the stopper 109 is attached to the bracket 101. And a groove 94 provided on one of the slide shafts 91 moves to a position directly below a pin 95 provided in a pin holder 96 fixed to the transfer frame 90, and the pin 95 is moved by its own weight. The lower end of the pin 95 is inserted into the groove 94 in a direction perpendicular to the perspective direction. In this state, the operation lever 99 is rotated to the position shown in FIG. 10, and the retaining member 97 is rotationally moved to the upper surface of the pin holder 96 to close the open upper surface of the pin holder 96. 97, the pin 95 is held between the groove 94 and the retaining member 97, and after the pin 95 is prevented from being removed from the groove 94, the operation lever 99 is fixed with the snap pin 105, and the position holding mechanism is fixed. The position of the rotating wheels 87, 88 at the approaching position by 93 is maintained, and the interval Y (transport passage width of the harvested grain culm) Y between the left and right stock transport chains 33L, 30R at the junction X2 is reduced to a small amount. The root portion of the four-row cut grain culm R, C, which is nipped and conveyed by the right strainer merging and conveying chain 33R, while preventing the occurrence of a conveyance failure such as a disturbed posture or falling off even with the cut grain culm of the cultivation. Against The strains based on the transport chain 33L is intended to properly merge the strain base portion of the cutting culms L of the left two rows fraction is pinched and conveyed from the conveying end portion of Hidarikabu original conveying chain 33L.
[0035]
On the other hand, when clogging of the harvested grain culms L, R, and C occurs at the junction X2, the machine is stopped, and the rotating wheels 87 and 88 are rotated by the position holding mechanism 93 from the left outside of the harvesting unit 7. By releasing the position holding at the approaching position and retreating the rotating wheels 87, 88 to the separated position, the interval Y between the left and right stock transport chains 33L, 33R at the junction X2 is enlarged, and the distance from the junction X2 is increased. Pulling out the harvested grain culms L, R, and C, that is, releasing the clogging of the harvested grain culms L, R, and C at the junction X2, and releasing the position holding of the rotating wheels 87 and 88 at the approaching position. After the snap pin 105 fixing the operation lever 99 is pulled out from each of the holes 103 and 104, the operation lever 99 is rotated from the position holding position shown in FIG. 10 to the release position shown by the solid line in FIG. The member 97 is placed on the upper surface of the pin holder 96. By rotating to the disengaged non-operating position and opening the upper surface of the pin holder 96 to allow the pin 95 to be pulled out of the groove 94 by the upward movement of the pin 95, the harvested grain culm at the junction X2 is thereafter Clogging reaction force of L, R, C (Left and right stock merge transport chains at merge section X2 due to cut grain culms L, R, C tightly packed between left and right strain merge streams 33L, 33R at merge section X2. Each of the slide shafts 91 and 108 is moved backward by a force acting on the rotating wheels 87 and 88 in the direction of increasing the distance Y between the slide shafts 33 and 33R. The pin 95 is automatically pushed up by the fitting shape of the lower end and the groove 94, and the slide shafts 91 and 108 are further moved backward while the pin 95 is raised on the outer surface of the slide shaft 91. The rotating wheel 87, 88 is to retract the separation position shown in solid lines in solid lines and 12 of FIG. 11.
[0036]
Further, after the clogging of the harvested grain culms L, R, C at the junction X2 is released, the rotating wheels 87, 88 are returned to the original approaching position again, and the position is held at that position, that is, the rotating wheels 87, When the slides 91 and 108 are moved forward by pressing the bracket 89 or the like, the re-setting of the bracket 88 is stopped by the stopper 109 abutting on the front side piece of the bracket 101. The groove 94 has moved to a position directly below the pin 95, and the pin 95 moves down inside the pin holder 96 by its own weight, so that the lower end of the pin 95 is automatically inserted into the groove 94 in a direction orthogonal to the perspective direction. Be included. Thereafter, when the operation lever 99 is rotated from the position shown by the solid line in FIG. 12 to the position shown in FIG. 10, the rotation is stopped by the tip of the stopper 106 abutting on the frame 107. When the operation lever 99 is rotated to the upper surface of the pin holder 96 and the operation lever 99 is fixed by the snap pin 105 at that position, the operation is completed.
[0037]
As is clear from the above, one of the pair of left and right harvesting culms L and R, which is a pair of right and left stocking merging and conveying chains 33L and 33R, which sandwiches and conveys each of the stems of the cutting culm L and R, and merges. The rotating shafts 87 and 88 for winding and supporting the transport end portion are supported on the transport frame 90 so as to be movable in the near and far directions with respect to the other stock merge transport chain 33R. A pin 95 provided on the transfer frame 90 side is inserted in a direction orthogonal to the perspective direction to restrict the movement of the slide shaft 91 in the perspective direction and to hold the rotary wheels 87 and 88 at the approach position. 93 is provided, and by pulling out the pin 95 from the groove 94, it is easy to release the position holding at the approach position without advancing the rotating wheels 87, 88 from the approach position. Done so, reaper culms L at the joining portion X2, is configured so as to perform jam releasing of R comfortably well workability.
[0038]
Further, the slide shaft is composed of two parallel shafts 91 and 108, and one of the two slide shafts 91 and 108 is provided with a groove 94 for inserting the pin 95 into the slide shaft 91. When the wheels 87 and 88 are moved in the perspective direction, the occurrence of prying is suppressed, and the rotating wheels 87 and 88 are configured to move smoothly.
[0039]
Further, a retaining member 97 for pressing the end of the pin 95 on the side opposite to the side into which the groove 94 is inserted, and an operation lever for rotating the retaining member 97 about an axis 98 parallel to the pin 95 99 and a single plate material, and the rotation of the operation lever 99 causes the rotating wheels 87, 88 to maintain the position at the approaching position and release the same, and the cutting culm L, R at the junction X2. The clog is released easily with good workability using a non-tool.
[0040]
The groove 94 is provided in a semicircular cross section on the outer surface of the slide shaft 91 in a ring shape, and the end face of the pin 95 on the side inserted into the groove 94 is formed into a spherical surface having the same radius of curvature as the radius of curvature of the groove 94. The pin 95 is pulled out from the groove 94 and the rotating wheels 87 and 88 are retracted to the separated positions by the clogging reaction force.
[0041]
As shown in FIGS. 13 and 14, the right and left and center stock transfer chains 33L, 33R, and 33C, the stock transfer chain 34, and the auxiliary stock transfer chains 35 and 36, which constitute a grain stem stock transfer mechanism. 110 is provided with a pinching mechanism 111 for pinching and transporting the roots of the cut culms L, R, and C with the transport chain 110, and the pinching mechanism 111 A bracket 113 having a gate-shaped cross section is attached to a fixing plate 112 fixed to a main frame or the like of the portion 7 so as to be adjustable in position in the direction closer to the conveying action side of the conveying chain 110, and a pair of clamping rails is attached to the bracket 113. The support arm 114 is inserted and supported movably in the perspective direction, and a pair of clamping rails 115 is provided at ends of a pair of clamping rail support arms 114 protruding between the transport chain 110 and the bracket 113. Firmly adhered, and repression support toward the nip 扼 rail 115 to the conveying action side of the conveyor chain 110 by a spring 116.
[0042]
In addition, the clamping mechanism 111 with respect to the fixing plate 112 inserts a pair of bolts 117 erected and fixed on the upper surface of the bracket 113 into a pair of elongated holes 118 opened in the upper fixing plate 112 in parallel to the perspective direction. The bolt 117 is fastened to the fixed plate 112 by two upper and lower nuts 119 and 120 screwed to the bolt 117 on the upper and lower sides of the fixed plate 112 to adjust the position of the pinching mechanism 111 in the vertical direction. The pinching mechanism 111 can be easily adjusted to the center of the transport chain 110 so as to be fixed, and the posture of the harvested grain culm L, R, C due to the displacement of the pinching mechanism 111 or falling off is prevented, It is configured to improve the grain culm transport function.
[0043]
As described above, the bolts 117 for fastening the clamping mechanism 111 to the fixing plate 112 are provided in the direction of adjusting the position in the vertical direction, and both the position adjustment and the fixing of the clamping mechanism 111 in the vertical direction are used. The function of positioning the strapping mechanism 111 at the center of the transport chain 110 can be stabilized. In addition, since both the vertical position adjustment and the fixing are used, the structure can be simplified, and the fixing bolts of the pinching mechanism 111 do not protrude on the side of the transport passage, so that the catch and accumulation of the transported culm and straw waste can be suppressed. It is possible to easily adjust not only the position of the pinching mechanism 111 in the vertical direction but also the position in the perspective direction. Since both the position adjusting portion and the fixing portion in the vertical direction are located at the center of the bracket 113. Also, it is possible to suppress the catch and accumulation of the transported grain and straw waste.
[0044]
As shown in FIGS. 15 and 16, each of the raising and lowering driving cases 48 is connected to an input end of an upper spike transport driving case to be described later on a lower end surface on an extension of the raising and lowering driving shaft 53 inserted therein. And a cover 122 for closing the hole 121 or an input end of the upper spike transporting drive case is provided on an outer surface of each raising drive case 48 around the hole 121. And a flange 124 for detachably connecting with the raising drive shaft 53. The raising drive shaft 53 has a pair of bevel gears 125 and 126 which are connected to the raising tine drive shaft 49 in an interlocking manner. A shaft end 127 is formed to protrude from one bevel gear 125 provided and extend to a position near the hole 121.
[0045]
On the other hand, the tine case 128 of each of the upper spike transporting tines 39L, 39R, and 39C is attached to the output end, and the upper end forming the input end 129a to be connected to the hole 121 of each of the raising and driving cases 48 by air. An ear transport drive case 129 is provided. The upper tip transport drive case 129 includes an input shaft 130, an output shaft 131, and a pair of bevel gears 132 and 133 for interlockingly connecting the two shafts 130 and 131. A shaft joint 134 with the shaft end 127 of the drive shaft 53 is fixed, the end of the shaft joint 134 is projected from the output end of the upper spike transfer drive case 129, and the output shaft 131 is connected to the upper spike transfer drive case 129. The protruding end is provided with a rotating plate 135 on which the raising tine 28 is attached at equal intervals, and furthermore, each raising drive is provided on the outer surface of the input end 129a of the upper spike transporting drive case 129. A flange 129b corresponding to the flange 124 on the case 48 side is formed.
[0046]
Then, the input end portion 129a of the drive case 129 of the upper left tip transfer tine 39L is connected to the hole 121 of the raising drive case 48 of the second raising case 29 from the left, and the shaft joint 134 of the input shaft 130 is raised. The drive case 129 is spline-fitted to the shaft end 127 of the drive shaft 53, and the drive case 129 is integrally connected to the lower end of the raising drive case 48 of the second raising case 29 from the left via the flange 124 and the set bolt 123. A left upper spike transport tine 39L is mounted and supported on the upper rear side of the second raising case 29 from the left, and power is transmitted to the tine 39L to rotate it. Similarly, the drive case 129 of the upper right tip feeding tine 39 </ b> R is integrally connected to the lower end of the raising drive case 48 of the second raising case 29 from the right, and the upper rear side of the second raising case 29 from the right. The upper right tip tine 39R is mounted and supported, and power is transmitted to this tine 39R to rotate the tine 39R. The drive case 129 of the center upper tip tine 39C is a raising drive case of the third raising case 29 from the right. 48, and a central upper spike tine 39C is mounted and supported on the upper rear side of the third raising case 29 from the right, and power is transmitted to the tine 39C to rotate it while the remaining tine 39C is rotated. A hole 121 for connecting the upper spike transfer drive case of the pull-up drive case 48 of the pull-up case 29 is provided with the cover 122 attached thereto, and a set bolt 123 and a flange. It is configured to close the process and fixed through 124.
[0047]
According to the above configuration, it is not necessary to prepare two types of the raising drive case 48, one with the upper spike transport tines 39L, 39R, and 39C, and the other without the mounting. The raising drive case 48 can be unified into one type, and the manufacturing cost is reduced. It is possible to properly cope with different mounting positions and numbers of the upper tip transport tines 39L, 39R, and 39C depending on the type of the model, and to transport the upper tip transport depending on the type and variety of the grain to be cut. It is possible to properly cope with the use / non-use of the tines 39L, 39R, 39C.
[0048]
【The invention's effect】
As is clear from the above embodiment, the present invention is one of a pair of left and right stock unit merging and conveying chains 33L and 33R for pinching and conveying each of the left and right harvested grain culm stock bases and merging them. A slide shaft 91 for supporting a rotary frame 87, 88 for winding and supporting a transport end portion of 33 L on a transport frame 90 so as to be movable in a distance direction with respect to the other stock merge transport chain 33 R, and a groove 94 provided on the slide shaft 91. A pin 95 provided on the side of the transport frame 90 is inserted in a direction orthogonal to the perspective direction to restrict the movement of the slide shaft 91 in the perspective direction, thereby holding the rotating wheels 97 and 88 at the approach position. A holding mechanism 93 is provided. By pulling out the pin 95 from the groove 94, the rotating wheels 887, 88 can be held at the approach position without being advanced from the approach position. Dividing can be easily performed, in which clogging cancellation of culms cutting at the joining portion X2 can be performed with high workability easily.
[0049]
Further, the slide shaft is composed of two parallel shafts 91 and 108, and one of the two slide shafts 91 and 108 is provided with a groove 94 for inserting the pin 95 into the slide shaft 91. When the wheels 87 and 88 are moved in the perspective direction, the occurrence of prying can be suppressed, and the rotating wheels 87 and 88 can be smoothly moved.
[0050]
Further, a retaining member 97 for pressing the end of the pin 95 on the side opposite to the side into which the groove 94 is inserted, and an operation lever for rotating the retaining member 97 about an axis 98 parallel to the pin 95 99 and a single plate member, the rotation of the operation lever 99 enables the rotating wheels 87 and 88 to maintain the position at the approaching position and release the same, and the jamming of the harvested grain culm at the junction X2. Release can be performed easily with good workability using a non-tool.
[0051]
The groove 94 is provided in a semicircular cross section on the outer surface of the slide shaft 91 in a ring shape, and the end face of the pin 95 on the side inserted into the groove 94 is formed into a spherical surface having the same radius of curvature as the radius of curvature of the groove 94. The pin 95 can be pulled out from the groove 94 and the rotating wheels 87 and 88 can be retracted to the separated positions by the clogging reaction force.
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine.
FIG. 2 is an overall plan view of the combine.
FIG. 3 is a side view of the reaper.
FIG. 4 is a plan view of a cutting section.
FIG. 5 is a plan view of the stock merger and transfer chain.
FIG. 6 is a drive system diagram of a mowing unit.
FIG. 7 is a side view of the central transport drive unit.
FIG. 8 is a plan view of a central transport driving unit.
FIG. 9 is a side view of the position holding mechanism.
FIG. 10 is a plan view of a position holding mechanism.
FIG. 11 is a side view of the position holding mechanism in a released state.
FIG. 12 is a plan view of a position holding mechanism in a released state.
FIG. 13 is an explanatory cross-sectional view of a pinching mechanism.
FIG. 14 is an explanatory plan view of a pinching mechanism.
FIG. 15 is a cross-sectional side view of the pull-up drive case with the upper spike tine removed.
FIG. 16 is a cross-sectional side view of the raising drive case to which the upper spike transport tine is attached.
FIG. 17 is a perspective view of a pull-up drive case to which an upper spike transport tine is attached.
FIG. 18 is a front view of the upper spike transfer drive case.
FIG. 19 is a plan view of a lid.
[Explanation of symbols]
33L, 33R stock former merging transfer chain
87,88 rotating wheel
90 Transport frame
91 Slide shaft
93 Position holding mechanism
94 grooves
95 pins
97 retaining member
99 Control lever
108 slide axis

Claims (4)

Of the pair of left and right stocking combined transfer chains that sandwich and convey each of the left and right harvested grain culm stock bases to join each other, the rotating wheel that winds and supports the transfer end part of one stock former combined transfer chain is the other stock. A slide shaft supported on the transfer frame movably in the perspective direction with respect to the original merged transfer chain, and a pin provided on the transfer frame side inserted into a groove provided on the slide shaft in a direction orthogonal to the perspective direction. And a position holding mechanism for holding the rotating wheel at the approach position by restricting movement of the rotating wheel in the near and far directions. The combine according to claim 1, wherein the slide shaft is constituted by two parallel shafts, and one of the two slide shafts is provided with a groove for inserting the pin. A stopper member for pressing an end of the pin opposite to the side to be inserted into the groove and an operation lever for rotating the stopper member about an axis parallel to the pin are formed of one plate. Item 3. The combine according to item 1 or 2. The groove is provided in a ring shape on the outer surface of the slide shaft in a semicircular cross section, and an end surface of the pin on the side inserted into the groove is formed as a spherical surface having the same radius of curvature as the radius of curvature of the groove. 3. The combine according to 3.

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