JP2009219450A - Cereal culm-guiding plate of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably convey cereal culms to a cereal culms-feeding port smoothly without having disorganized conveying posture by reducing frictional resistance at the lateral side of a cereal culms-guiding plate so as to be able to reduce the development of connection and bent of the cereal culms. <P>SOLUTION: This cereal culms-guiding plate 102 of a combine 1, arranged between the front side of a cereal culms-feeding port 91a of a threshing part 5 and the rear part of a cereal culms-conveying device 55 for conveying from a reaping part 4 to the threshing part 5 and constituted by a flexible material is provided by installing/attaching a guiding body 103 composed of a hard member of which surface is smooth, at the conveying upstream of lateral side 102d of the cereal culms-guiding plate 102. The guiding body 103 is formed by a plate like hard member, and bent to a U-shaped or an approximately V-shaped form by a cross sectional view for covering/fixing the lateral side 102d of the cereal culms-guiding plate 102. Alternatively, by forming the guiding body 103 with a hard synthetic resin as a belt plate form, it is fixed with the lateral side 102d of the cereal culms-guiding plate 102 as one unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a technology for transporting corn straw of a combine, and particularly to a technology of a corn straw guide plate to which the transported cocoon is inherited.

Conventionally, a combiner is constituted by a cutting part, a threshing part, a traveling part, etc., among which a cutting part is constituted by a weeding body, a pulling device, a scraping device, a cutting blade device, a conveying device and the like. Specifically, weeds that separate cereals from unmilled cereals and separate cereals, elevating devices that raise cereals after weeding, and scrape the stock side of cereals after erection It consists of a scraping device, a cutting blade device that cuts the culm stock at the time of scraping, a conveying device that transports the cut harvested culm to the threshing part while changing the posture from the vertical state to the horizontal state.
At the transport downstream end of the transport device, the stock side of the cereal is inherited by the feed chain of the threshing unit, and the tip of the cereal is led to the supply port of the handling room. Grains are often scattered at the supply port, and a supply funnel for facilitating the inheritance of the cereal is provided at this location, and the gap between the transfer device and the supply funnel is maintained following the vertical movement of the transfer device. A corn straw guide plate made of rubber or the like to be closed is provided.

  For example, as shown in Patent Document 1, the guide plate is formed in an upward “U” shape, and is attached to the lower side (downstream end lower side) of the chain case terminal portion of the tip conveying device (conveying device). And a guide plate body made of a flexible material, which is bent along the mounting plate to have a U-shaped cross-section and is further doubled by a bent portion where one standing edge is folded downward. The technology of the configured grain culm guide plate is known.

Moreover, as shown in Patent Document 2, a supply chain device (auxiliary transport device) handles a pivotable root chain for adjusting the depth, a chain rail that guides the chain, and a chain rail. A combine having a structure in which a stay provided, a cover attached to the stay, and a rubber inlet funnel (guide body) attached to the cover are provided to smoothly feed the cereals from the supply conveying device to the threshing device The technology of cereal grain guide plates is known.
Japanese Utility Model Publication No. 60-3709 JP 2002-305938 A

  In the conventional combine culm guide plate, when the culm conveyed by the conveying device after cutting is positioned on the culm guide plate during the harvesting operation, the culm stock side is the rubber cereal guide plate Due to the frictional resistance at the time of contact with the side edge, the posture of the cereal was disturbed, stagnated, and broken, resulting in an increase in unhandled items. Further, when the end surface of the culm guide plate undulates depending on the use situation, the resistance further increases, and it may be difficult to accurately convey the culm to the supply port of the handling room.

  In view of the above situation, the present invention reduces the frictional resistance at the side of the cereal guide plate, can reduce the occurrence of catching or breaking of the cereal, and smoothly transfers the grain without disturbing the conveying posture. An object of the present invention is to provide a combine culm guide plate that can stably transport cereals to the culm supply port.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in Claim 1, the combine comprised from the flexible raw material arrange | positioned between the front side of the cereal supply port of a threshing part and the rear part of the cereal conveyance apparatus conveyed to a threshing part from a cutting part. In this cereal culm guide plate, a guide body made of a hard member having a smooth surface is attached to the upstream side of the cereal culm guide plate.

  According to a second aspect of the present invention, the guide body is formed by bending a plate-like hard member into a substantially “U” shape or a substantially “V” shape in cross-section and covering and fixing the side of the cereal guide plate.

  According to a third aspect of the present invention, the guide body is formed by forming a hard synthetic resin into a band plate shape and integrally fixing it to the side of the grain guide plate.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, the frictional resistance at the side of the cereal guide plate made of a flexible material such as rubber can be reduced, and the occurrence of stagnation or breakage of the cereal can be reduced. It is possible to smoothly convey the cereals to the cereal supply port smoothly without being disturbed. In addition, since only the side of the cereal guide plate is hardened and the other parts are kept flexible, the guidance by the cereal guide plate is obstructed even if the lifting and lowering of the cutting part and the transport device are performed. It will not be done. And the rigidity of an edge improves, wear resistance can also be improved, and a wave can also be prevented.

  In Claim 2, a guide body can be easily comprised only by bending a plate-shaped hard member. Moreover, the guide member of a hard member can be obtained at low cost.

  According to the third aspect of the present invention, the guide body can be obtained at a low cost and can be easily obtained by injection molding or the like.

Next, embodiments of the invention will be described.
1 is a side view showing the overall configuration of a combine according to an embodiment of the present invention, FIG. 2 is a schematic side view showing the configuration of a cutting part, FIG. 3 is a schematic plan view, and FIG. FIG. 5 is a plan view showing the configuration of the culm guide plate, FIG. 6 is a schematic diagram showing the configuration of the culm guide plate and guide according to Example 1 of the present invention, and FIG. FIG. 8 is a schematic diagram showing the configuration of the culm guide plate and guide according to Example 2 of the present invention, and FIG. 8 is a schematic diagram showing the configuration of the culm guide plate and guide according to Example 3 of the present invention.
In the following, the traveling direction of the combine is determined to be the front / rear / left / right direction with the arrow A in FIG.

  First, the overall structure of a combine according to an embodiment of the present invention will be described.

  As shown in FIG. 1, the combine 1 supports the machine frame 2 with a crawler type traveling device 3 that is a traveling unit, and drives the crawler type traveling device 3 with an engine mounted on the body frame 2 to move forward or It is configured to be able to travel backward. And in the combine 1, the cutting part 4 which cuts the grain cocoon at the front part of the body frame 2 and conveys it to the rear of the body frame is provided, and the harvested corn grain from the cutting part 4 is threshed at the left side front and rear middle part of the body frame 2. The threshing unit 5 that performs the sorting and the sorting unit 6 that sorts the grains threshed by the threshing unit 5 are disposed. At the rear of the machine body frame 2, a slaughter processing unit 7 that cuts the cereal threshed by the threshing unit 5 or discharges the cereal as it is to the outside of the machine is provided.

  Further, a Glen tank 8 is provided at the right rear part of the machine body frame 2 for storing the grains conveyed from the sorting unit 6 by the milling cylinder, and the grains in the Glen tank 8 are arranged from the rear to the upper side of the Glen tank 8. A discharge auger 9 for discharging to the outside of the machine body is provided. A driving operation unit 15 including an operation device such as a steering handle 11 and various operation levers, a driver's seat 12, and the like is provided in front of the Glen tank 8 and on the right front portion of the body frame 2. A transmission and an engine are arranged below the vehicle.

  Next, the configuration of the cutting unit 4 will be described. In addition, although the present Example demonstrates the combine for four-row cutting, the number of cutting lines of a combine is not limited to a present Example.

  The mowing unit 4 is configured to be laterally rotatable about a support shaft 21 on the left and right sides of the machine body, in the present embodiment, on the left side. As shown in FIGS. It is erected on the left side of the front part of the frame 2. A cylindrical base portion is fitted on the upper end portion of the support shaft 21, and the pipe holding member 22 is rotatably supported. The pipe holding member 22 includes upper and lower pipe holding portions 22a and 22b each having a half cylinder shape. The lower pipe holding portion 22b protrudes in the radial direction from the base, and the upper pipe holding portion 22a is bolted to the lower pipe holding portion 22b. It is configured so that the left end side of the cutting input pipe 23 can be inserted and sandwiched between the pipe holding portions 22a and 22b.

  Further, on the right side of the support shaft 21, a cutting support base 25 is erected on the body frame 2 so as to face the support shaft 21, and a pipe receiving member 26 is provided on the cutting support base 25. The pipe receiving member 26 includes upper and lower pipe receiving portions (not shown) in the shape of a half cylinder, the lower pipe receiving portion is fastened to the cutting support base 25 with bolts, and the upper pipe receiving portion is moved to the left and right of the lower pipe receiving portion. A bolt shaft 27 extending in the direction is attached so as to be vertically rotatable, and the right end side of the cutting input pipe 23 is arranged between both pipe receiving portions and can be sandwiched.

  In this way, the cutting unit 4 integrally forms the cutting input pipe 23, the vertical transmission pipe 33, the horizontal transmission pipe 38, and the like as a cutting frame, and the cutting frame 4 A herbaceous body 51 that separates cereals from a cocoon or a single cereal of cereals, a pulling device 52 that erects the cereals after weeding, and a scraping device 53 that stirs the stock side of the cereal after raising A cutting blade device 54 that cuts the stock of the culm when scraped, a cereal conveying device 55 that conveys the cut cereal after cutting to the threshing unit 5, and the like are assembled.

In the cutting frame of the cutting unit 4, a pulling device 52 composed of a weeding body 51 and a chain 62 with a tine that can be driven by a driving sprocket is provided in the pulling case 61. ing. The weeding body 51 is projected from the tip of each weeding frame 39.
The pulling device 52 is supported by attaching the upper part of the pulling case 61 to the pulling drive case 42 and fixing the lower part to the branch frame 63 erected in the middle of the front and rear of the weeding frame 39 behind the weeding body 51. ing.

  At the rear of the pulling device 52, a scraping device 53 configured by a star wheel 64, a scraping belt 65, or the like is disposed, and a cutting blade configured by a cutting blade 66 or the like below the scraping device 53. A device 54 is provided. The scraping device 53 is supported by a support frame 67 erected on the lateral transmission pipe 38, and the cutting blade device 54 is fixed below the weeding frame 39. And the cereal conveyance apparatus 55 is arrange | positioned in the rear upper direction of the scraping apparatus 53 and the cutting blade apparatus 54. FIG.

  The grain feeder 55 includes a lower right conveying device 71 that conveys the right two strips of harvested cereal to the left diagonally and a left lower strip of harvested cereal that is conveyed to the right diagonal rear and conveys the stock portion of the right lower portion to the lower right. The lower left conveying device 72 that joins the vicinity of the conveying end of the device 71, the upper conveying device 73 that conveys the tip portion of the cut cereal grains for the four strips to the left oblique rear, and the vicinity of the conveying end of the lower right conveying device 71 Between the vertical conveying device 74 and the vertical chaining device 74 for conveying the stock base portion of the cut cereal rice cakes merged at the rear obliquely upward toward the feed chain 90 of the threshing unit 5, between the vertical conveying device 74 and the feed chain 90. It is comprised with the auxiliary | assistant conveyance apparatus 75 which relays conveyance by the side of the stock origin part of the harvested cereal.

  The lower right transport device 71 and the lower left transport device 72 are disposed behind the scraping device 53, and the upper transport device 73 is disposed from above the lower right transport device 71 to behind the lower transport devices 71 and 72. Has been. The vertical conveying device 74 is disposed behind the lower left conveying device 72 and below the upper conveying device 73. Then, the auxiliary transport device 75 is sandwiched from above and below between the rear end portion of the upper transport device 73 and the rear end portion of the vertical transport device 74 in a side view, and the positions thereof are sequentially from the top to the upper transport device 73 and the auxiliary transport. The apparatus 75 and the vertical conveying apparatus 74 are arranged.

  The auxiliary conveyance device 75 is located on the right side of the rear end portion of the vertical conveyance device 74 and the front end portion of the feed chain 90 so that the conveyance end portion of the vertical conveyance device 74 is close to the conveyance start end portion (front end portion) of the feed chain 90. It is arranged so that the stock base part of the four sown cereal grains that are conveyed in a lying position by the vertical conveying device 74 can be delivered to the starting end of the feed chain 90. Then, the harvested cereals inherited from the cereal conveying device 55 configured in this way to the feed chain 90 are conveyed to the rear of the machine body in a form sandwiched between the feed chain 90 and the culm holding part 95, and the threshing unit Threshing processing is performed in a handling cylinder 92 provided in the five handling chambers 91. Here, the culm presser portion 95 is configured to respond to changes in the culm conveying flow rate and prevention of pulverized culm extraction by the force of the spring.

  The vertical conveying device 74 rotates in the left-right direction with the front as a fulcrum, and adjusts the inheritance position of the stock base part to the feed chain 90, whereby the handling depth of the cereals conveyed to the threshing part 5 is adjusted. Can be changed.

  In the cutting unit 4, the power transmitted to the cutting input shaft in the cutting input pipe 23 is transmitted to the vertical transmission shaft in the vertical transmission pipe 33, and then from the vertical transmission shaft to the horizontal transmission shaft in the horizontal transmission pipe 38. It is configured to be transmitted. Then, power is transmitted from the lateral transmission shaft to the pulling device 52, the scraping device 53, the cutting blade device 54, and the lower right transport device 71 and the lower left transport device 72 of the cereal haul transport device 55. Each device is driven.

  The power transmitted from the cutting input shaft in the cutting input pipe 23 to the vertical transmission shaft in the vertical transmission pipe 33 is branched by a bevel gear mechanism provided in the middle of the vertical transmission shaft, and part of the power is inclined forward and upward. It is configured to be transmitted to a vertical conveyance drive shaft 78 extending in the direction of Power is transmitted from the vertical conveyance drive shaft 78 to the vertical conveyance device 74 so that the vertical conveyance device 74 is driven.

  Further, the power transmitted to the cutting input shaft is branched by a bevel gear mechanism provided in the middle of the cutting input shaft, and a part thereof is transmitted to the conveyance drive shaft 79 extending obliquely upward to the right. ing. The power is transmitted from the transport drive shaft 79 to the upper transport device 73 and the auxiliary transport device 75 so that the upper transport device 73 and the auxiliary transport device 75 are driven.

  Further, in the cutting portion 4, a front end portion of a support frame 81 made of a round pipe is attached to the middle portion of the pulling vertical transmission pipe 40 located on the feed chain 90 side (left side). The support frame 81 is formed in a curved shape or bent in an upwardly convex shape when viewed from the side, extends rearward from the pulling longitudinal transmission pipe 40 to the vicinity of the left side of the auxiliary conveying device 75, and its rear end portion feeds. It is arranged in front of the chain 90 and above the auxiliary transport device 75.

  A holding guide member 82 is suspended and supported at the rear end portion of the support frame 81 so as to face the conveying side of the auxiliary conveying device 75. It is comprised so that a part can be clamped. In addition, the culm guide plate 102 for guiding the stock source and the culm culm guide plate 108 for guiding the tip are arranged from the rear end side of the auxiliary transport device 75 to the vicinity of the front of the culm supply port 91a.

  The cereal guide plate 102 is made of a flexible material such as a plate-like rubber. As shown in FIGS. 4 and 5, the upper rear end side of the auxiliary transport device cover 75 a and the left front end portion 102 a of the grain guide plate 102 are fasteners such as bolts, the front end side being disposed on the upper surface side of the auxiliary transport device 75. And is attached to the auxiliary conveyance device 75. Similarly, the upper rear end side of the upper transport device 73 and the right front end portion 102b of the culm guide plate 102 are fastened by a fastener such as a bolt and attached to the upper transport device 73. Then, the cereal guide plate 102 is extended so as to spread rearward from the rear end side of the auxiliary transport device 75 and the upper transport device 73, and the rear portion of the tip culm guide plate 108 is in front of the handling chamber 91 of the threshing unit 5. The left side portion is placed so as to overlap from above.

  The spikelet culm guide plate 108 is made of a flexible material such as a plate-like rubber like the cereal culm guide plate 102, and the rear end of the upper transport device cover 73 a disposed on the upper surface side of the upper transport device 73. It is attached to the upper conveyance device 73 by being fastened to the end portion with a fastener. Then, the cereal supply port 91a that extends rearward from the rear end portion of the upper conveying device 73 and is formed in front of the handling chamber 91 of the threshing portion 5 while being deformed in contact with the surrounding members. It is arranged so as to be located in the vicinity of the front. In this way, the tip culm guide plate 108 is disposed on the top of the culm guide plate 102 in a plan view.

  Although the head culm guide plate 108 and the culm guide plate 102 for guiding the cereal are configured as separate bodies, they may be configured integrally.

Up to this point, the basic configuration of the combine 1 and the method of harvesting and transporting the corn straw are common to the embodiments described later.
Next, the guide body 103 which is a feature of the present invention will be described in detail in each embodiment.

  As shown in FIGS. 4 and 5, the left side 102 d of the grain guide plate 102 is formed in a “h” shape in plan view, and the angle of the side on the upstream side of the conveyance is determined by the conveyance of the auxiliary conveyance device 75. In addition to the direction, the angle on the downstream side of the conveyance is configured in accordance with the conveyance direction of the feed chain 90. And the guide body 103 which consists of hard members, such as a metal with a smooth surface, a synthetic resin, etc. is attached to the conveyance upstream side edge of the side edge 102d of the said corn straw guide board 102 according to the side shape. .

As shown in FIG. 6, the guide body 103 according to the first embodiment is formed by bending a metal plate or the like, which is a hard member substantially matched to the length of the side on the upstream side of conveyance, or by injection molding a synthetic resin. It is formed in an approximately “U” shape or an approximately “V” shape. The guide body 103 covers and fixes the conveyance upstream end of the side 102 d of the grain guide plate 102. A plurality of bolt holes 102g are opened in the vicinity of the side 102d of the grain culm guide plate 102. Also, on the lower side of the guide body 103, bolt holes 103d are opened at a plurality of locations in accordance with the bolt holes 102g when being fixed.
Further, the portion covered with the guide body 103 is thinned up and down so that there is no level difference between the surfaces of the guide body 103 and the grain guide plate 102, and the vicinity including the side 102d is sandwiched between the guide bodies 103, From the lower side of the guide plate 102, the bolt hole 103d is screwed with a bolt 200 or the like and fixed. However, the fixing method of the guide body 103 is not limited, and can be fixed by adhesion or caulking.

  With such a configuration, it is possible to reduce the frictional resistance on the side upstream of the conveyance of the side 102d of the grain guide plate 102 made of a flexible material such as rubber by attaching the guide 103. . Therefore, it is possible to reduce the occurrence of disturbance, stagnation, breakage, etc. of the posture due to catching of the cereal by the frictional resistance on the upstream side of the conventional side 102d, and the cereal conveyance posture is smoothly and stably Then, the cereal can be conveyed to the cereal supply port 91a. Further, since only the side of the cereal guide plate 102 is hardened and the flexible material (flexibility) is maintained in the other parts, the reaping part 4 is raised and lowered, and the cereal conveyor device 55 is raised and lowered. However, the guidance by the culm guide plate 102 is not hindered, the gap between the auxiliary conveying device 75 and the feed chain 90 can be closed flexibly, and the harvested cereal can be prevented from falling. By attaching the guide body 103, the rigidity of the side 102d can be improved, the wear resistance can be improved, and the entire wrinkle guide plate 102 caused by extra resistance and the formation of wrinkles can be prevented.

  In addition, the guide body 103 can be easily configured by simply bending a metal plate or the like, or by injection molding of a synthetic resin or the like, and a guide body of a hard member can be obtained at low cost.

The guide body 103 according to the second embodiment may be formed of a hard synthetic resin in a strip shape and integrally fixed to the upstream side of the conveyance side of the side 102d of the grain guide plate 102.
That is, as shown in FIG. 7, the groove part 102e is formed along the longitudinal direction in the conveyance upstream end part of the side 102d of the cereal guide plate 102. Openings 102h and 102i are opened at a plurality of locations on the upper and lower portions where the groove 102e is formed. On the other hand, a protrusion 103a is formed at the end of the guide body 103 formed in the shape of a belt plate so as to engage with the groove 102e.
Cylindrical engaging portions 103e and 103f are arranged at a plurality of locations in accordance with the openings 102h and 102i when fixed to the upper and lower surfaces of the upper and lower portions of the protrusion 103a. Further, the other end (outer surface) 103b of the guide body 103 is formed as a smooth sliding contact surface having an arcuate upper portion in cross section. Then, the opening portions 102h and 102i and the engaging portions 103e and 103f are respectively fitted, and the groove portion 102e and the protruding portion 103a are fitted, whereby the cereal guide plate 102 and the guide body 103 are fixed. It should be noted that the surface of the guide body 103 and the grain guide plate 102 is not stepped similarly to the above, and the fixing method is not limited. The engaging portions 103e and 103f and the fitting opening 102h are not limited. -102i may be only one side of the upper part or the lower part, and is not limited.

Further, as shown in FIG. 8, the guide body 103 according to the third embodiment has a step surface 102 f formed in a two-step shape in the vicinity of the side on the upstream side of the side 102 d of the grain guide plate 102. . Bolt holes 102g are opened at a plurality of locations on the lower side of the step surface 102f.
On the other hand, the guide body 103 formed in the shape of a band plate is formed with a step surface 103c that is upside down of the side 102d so that the grain guide plate 102 side is engaged in the two-step staircase shape.
Bolt holes 103d are opened at a plurality of locations on the upper side of the stepped surface 102c in accordance with the bolt holes 102g when being fixed.

  The other end 103b of the guide body 103 is formed as a slidable contact surface in which the upper part of the cross section has an arc shape. Then, the stepped surfaces 102f and 103c are engaged, and the engaged portion is screwed into the bolt holes 102g and 103d with bolts 200 from the lower part of the cereal guide plate 102, whereby the cereal guide plate 102 and the guide body. 103 is fixed. It should be noted that there is no step on the surfaces of the guide body 103 and the culm guide plate 102 as described above, and the fixing method is not limited.

With the configuration of the second and third embodiments, the guide body 103 is formed of a hard synthetic resin, so that it can be obtained at low cost and can be easily formed by injection molding or the like.
Conventionally, the side 102d having a corner where the cedar is abutted and on which excessive pressure is applied is formed as an arc-shaped sliding contact surface, so that the excessive abutment pressure is reduced and the cereal is broken. Etc. can be reduced.

The side view which showed the whole structure of the combine which concerns on one Example of this invention. The schematic side view which shows the structure of a cutting part. Similarly a schematic plan view. Schematic which shows the structure in the vicinity of a cereal meal guide board. The top view which shows the structure of a cereal grain guide board. BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows the structure of the corn straw guide board and guide body which concern on Example 1 of this invention. Schematic which shows the structure of the grain ridge guide board and guide body which concern on Example 2 of this invention. Schematic which shows the structure of the culm guide board and guide body which concern on Example 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 4 Cutting part 5 Threshing part 54 Cutting blade apparatus 55 Grain conveying apparatus 74 Longitudinal conveying apparatus 75 Auxiliary conveying apparatus 90 Feed chain 102 Grain straw guide board 103 Guide body 108 Tip grain straw guide board

Claims (3)

In the combine culm guide plate composed of a flexible material disposed between the front side of the cereal supply port of the threshing part and the rear part of the cereal transport apparatus that transports from the reaping part to the threshing part,
A combine culm guide plate according to claim 1, wherein a guide body made of a hard member having a smooth surface is attached to the upstream side of the cereal guide plate.   2. The guide body according to claim 1, wherein a plate-like hard member is bent into a substantially “U” shape or a substantially “V” shape in a cross-sectional view to cover and fix the side of the grain guide plate. Combine harvester information board.   The combine culm guide plate according to claim 1, wherein the guide body is formed of a hard synthetic resin in a strip shape and is integrally fixed to a side of the cereal guide plate.

Images