JP2000000026A - Telescopic grain transfer device such as combine - Google Patents

Abstract

(57) Abstract: An object of the present invention is to prevent damage to a contraction side sensor and an extension side sensor that stop the movement of a transfer cylinder. Kind Code: A1 Abstract: A contraction for stopping and controlling a moving transfer cylinder 49 by moving a moving metal 56b of a moving device 50 for moving the moving transfer cylinder 49 movably inserted into an outer peripheral portion of a fixed transfer cylinder 47. On the front side of the contraction side sensor 68 and the extension side sensor 69 for detecting the final position and the final position of extension, relaxation members 70 and 71 for alleviating the contact impact are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a transfer device for moving a moving transfer cylinder, which is movably inserted into an outer peripheral portion of a fixed transfer cylinder for transferring grains, by abutting a moving metal. On the lower side in the transfer direction between the compression-side sensor and the extension-side sensor for detecting the final position in the contraction direction for controlling the stop of the transfer cylinder and the final position in the extension direction, the impact of the contact of the moving metal is reduced. This technology relates to an elastic grain transfer device provided with a buffer member in each case, and can be used for a discharge device for discharging grains such as a combine outside the machine.

[0002]

2. Description of the Related Art For example, at the time of harvesting with a combine, the harvested grain stalks harvested with a combine harvester are:
The grains supplied to the threshing machine and threshed, the threshed and sorted kernels are temporarily supplied and stored in a grain storage tank, and the stored grains are discharged out of the machine by a telescopic grain transfer device. At the time of this discharge, if the discharge position is far from the combine, the movable transfer tube of the telescopic grain transfer device is extended from the fixed transfer tube by the transfer device, and is extended to a predetermined position. The moving metal of the moving device abuts on the extension-side sensor, and the abutment stops the extension of the transfer cylinder.

[0003] When stopped, the grains are transferred in the fixed transfer tube by a transfer spiral provided inside the fixed transfer tube, are taken over by each transfer transfer spiral, and are transferred by the respective transfer transfer spirals. It is transferred inside the cylinder and discharged outside the machine.

[0004]

When the moving transfer cylinder is moved, the moving metal of the moving device detects a final position in the contracting direction and a final position in the extending direction of the moving transfer cylinder. In some cases, the contraction-side sensor and the extension-side sensor may be damaged, and this problem is solved by the present invention.

[0005]

For this purpose, the present invention provides a fixed transfer cylinder 47 having a transfer spiral 51 provided therein for receiving and transferring a supply of grains, and a plurality of movable transfer tubes which are superimposed and extendable. A movable transfer cylinder 49 having a spiral 55b therein is movably inserted into an outer peripheral portion 48 of the fixed transfer cylinder 47, and
In a combine or the like provided with a moving device 50 for moving the moving transfer tube 49 to the final position in the contraction direction in which the moving metal 56b of the moving device 50 stops and controls the moving transfer tube 49 by contact. On the lower side in the transfer direction between the contraction side sensor 68 for detecting the final position in the extension direction and the extension side sensor 69, buffer members 70 and 71 are provided respectively to alleviate the impact when the moving metal 56b abuts. The structure of a telescopic grain transfer device such as a combine or the like is characterized in that.

[0006]

The harvested culm harvested by the combine harvester during harvesting by the combine is supplied to a threshing machine and threshed, and the threshed and sorted kernels are temporarily stored in a temporary grain storage tank. The stored grains are discharged into the outside of the machine by a telescopic grain transfer device. At the time of this discharge, if the discharge position is far from the combine, the telescopic grains are stored. The movable transfer tube 49 of the transfer device is extended from the fixed transfer tube 47 by the moving device 50, and when it is extended to a predetermined position, the moving metal 56b of the moving device 50 is moved to the extension side sensor 69 via the buffer member 71. The transfer comes into contact, and the extension of the transfer cylinder 49 stops.

When stopped, the grains are transferred in the fixed transfer tube 47 by the transfer spiral 51 provided inside the fixed transfer tube 47, and are taken over by the respective transfer transfer spirals 55b. , The transfer cylinder 49
It is transported inside and discharged outside the machine.

[0008]

The moving metal 56b of the moving device 50 for moving the moving transfer cylinder 49 includes a contraction sensor 68 for stopping and controlling the moving transfer cylinder 49, a contraction sensor 68 for detecting a final position in the extension direction, and an extension. By contacting the contraction-side sensor 68 and the extension-side sensor 69 via the respective buffer members 70 and 71 provided on the lower side in the transfer direction of the side sensor 69, it is possible to reduce the impact at the time of contact. For this purpose, the contraction-side sensor 68 and the extension-side sensor 69
Can be prevented from being damaged.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The expandable grain transfer device 3 provided on the upper side of the grain storage tank 8 for discharging the grains stored in the grain storage tank 8 mounted on the threshing machine 2 mounted on the combine 1 is illustrated and described. .

A traveling device 6 having a pair of left and right traveling crawlers 5 for traveling on the soil surface is disposed below the chassis 4 of the combine 1. The traveling device 6 is clamped by a feed chain 7 above the chassis 4. The threshing machine 2 equipped with a grain storage tank 8 for laterally mounting a grain storage tank 8 for threshing the harvested culms conveyed and transporting the seeds, sorting and collecting the threshed grains for temporary storage. The threshing machine 2
At the front of the plant, a weeding body 9 for weeding trichomes from the front end position
And a raising device 10 for raising the weeded grain stalk, a cutting blade device 11 for cutting the raised grain stalk, and a grain stalk raking for transporting the cut stalk to the feed chain 7. The mowing machine 13 provided with the transport device 12 and the like is configured to be able to move up and down on the soil surface by a telescopic cylinder 14 driven by hydraulic pressure.

On the threshing machine 2 side, an operating device 15 for controlling the operation of the combine 1 and a cockpit 1 on which an operator rides
And an engine 17 below the cockpit 16.
And a grain storage tank 8 is installed at the rear. The traveling device 6, the threshing machine 2, the reaper 13, the engine 17, and the like constitute an airframe 18 of the combine 1.

In the culm conveying path formed by the cereal stalk scraping and conveying device 12 of the reaper 13, the culm which is cut and conveyed is brought into contact with the culm to be conveyed to feed the culm to the threshing machine 2. A grain stalk sensor 19 for detecting the presence or absence is provided.
A vehicle speed sensor 21 for detecting a traveling vehicle speed based on the output rotation speed is provided in a transmission path of a traveling mission 20 mounted on a front end of the chassis 4.

As shown in FIG. 19, the threshing machine 2 has a threshing chamber 22, a dust processing chamber 23, a second processing chamber 2
4 and a sorting room 25 is arranged on the lower side. In the threshing room 22, a large number of various teeth 26
The handle cylinder 26 for threshing the harvested culm by attaching a is mounted on the shaft in the front-rear direction. Threshing room 2 in plan view
In the second processing chamber 24, which is located on the front side and parallel to the right side of No. 2, the unthreshed processed material (secondary material) to be reduced is processed while being transferred forward, and is discharged to the sorting chamber 25. A second transfer spiral 27a is sequentially placed from the start end into a second processing cylinder 28 equipped with a number of processing teeth 27b and a second discharge blade 27c, and a dust processing chamber 23 positioned at the rear side. A dust discharge transfer spiral 29a sequentially from a transfer start end for reprocessing while transferring a part of the unthreshed processed material supplied from the threshing room 22 backward,
A plurality of processing teeth 29b and a dust processing cylinder 30 equipped with dust discharging blades 29c are coaxially mounted on a shaft.

The handle 26 on the left side of the threshing room 22 in plan view
a feed chain 7 for holding the harvested culm along the b, a holding rod 31 and a handling net 26c surrounding the lower part of the outer periphery of the handling teeth 26a to the handling cylinder cover 32;
On the rear side which surrounds the lower side of each outer peripheral edge of each processing tooth 27b, 29b by providing a step, a leaking device 33 having rod-shaped members provided at predetermined intervals, and a second receiving net 34 are provided. I have. A dust discharge port 33a is provided at the transfer terminal end side of the leaking device 33 for discharging straw waste processed in the dust processing chamber 23 and dust such as culm cuts. A second discharge port 34a for discharging a part of the processed material threshed in the second processing chamber 24 is provided on the transfer terminal side of the receiving network 34.

In the sorting chamber 25, threshing material leaked from the handling net 26c, treated material leaked from the leaking device 33 and the second receiving net 34, and discharged from the second outlet 34a. A swing sorting device 35 is provided along the axial direction of the handling cylinder 26, which receives the supply of the processed material and the dust discharged from the dust discharge outlet 33a, and swings and sorts while transferring. ing. The swing sorting device 35 has a configuration in which a transfer shelf 36a, a chief sheave 36b, and a straw rack 36c are sequentially provided from the front, and a Glen sheave 36d is provided below the chief sheave 36b, and the chief sheave 36b adjusts a transfer angle. It is configured to be able to adjust the amount of leakage.

A blower 37 having a blower blade 37a rotatably mounted therein is provided below the swinging sorting device 35 at the start end side (upper side) in the transfer direction, and the sorting wind generated by the blower 37 is blown. And wind-sorted into grains and dust.
37b is a wind split. The lower end portion of the blower 37 is connected to the upper side of the most drainage gutter 39b, which contains the grains to be sorted down from the first sorting shelf 38 and is fed by the first spiral 39a. The bottom is connected to the lower end of the first sorting shelf 38, and on the lower side near the upper end of the first sorting shelf 38, an unthreshed processed material (secondary product) that is flow-down sorted from the second sorting shelf 40 is provided. The upper end of the second trough 41b to be fed and traversed by the second spiral 41a is placed in an overlapped state with an appropriate interval, and the upper end of the second sorting shelf 40 is The configuration is open to the outside.

The grains fed laterally by the first spiral 39a are taken over by a grain-lifting device (not shown) or the like, and are fed into the grain storage tank 8 for storage. The second spiral 4
The second threshing cylinder 42a equipped with a lifting spiral 42b for taking over the unthreshed processed material (second product) laterally fed in 1a and discharging the processed material into the second processing chamber 24 is rightward in plan view of the threshing machine 2. It is a configuration that is inclined.

Above the transfer end portion of the swing sorting device 35, a dust exhaust fan for discharging both the sorting wind of the blower 37 and the dust sorted by the swing sorting of the swing sorting device 35 to the outside of the machine. 43 is provided. At the bottom of the grain storage tank 8, there is provided a lateral transfer spiral 8 for feeding the stored grains backward.
a is provided in the front-rear direction, while taking over the grains fed laterally, the dumping support cylinder 45a containing the vertical transfer spiral 45b that changes direction through the joint case 44 is rotatable in a vertical posture. An upper joint case 45c provided at an upper end portion of the grain discharge support cylinder 45a is provided as a support point on the upper side of the joint case 44 at a rear side of the grain storage tank 8, and its total length is equal to the front and rear length of the combine 1. A telescopic grain transfer device 3 for moving the grain forward and backward and up and down to discharge grains outside the machine is provided.

The telescopic grain transfer device 3 is shown in FIGS.
The fixed transfer cylinder 47 attached to the joint metal 46 as shown by
And a movable transfer cylinder 49 which is inserted into the outer peripheral portion 48 of the fixed transfer cylinder 47 and can be extended and contracted.
Is constituted by a moving device 50 for moving the. As shown in FIG. 4, a fixed spiral shaft 52 having a transfer spiral 51 mounted on an outer peripheral portion is provided at the transfer end portion of the fixed transfer cylinder 47. The fixed spiral shaft 52 has a hexagonal shape inside. Or an auxiliary shaft 53 having a hexagonal insertion hole 53a smaller in diameter than the insertion hole 52a in the inner diameter portion at the transfer end of the fixed spiral shaft 52. Is fixedly provided.

The outer diameter portion of the transfer end portion of the fixed transfer cylinder 47 is inserted into the inner diameter portion of the outer peripheral boss 46b of the joint metal 46 to support the shaft, and is provided on the inner diameter portion of the inner peripheral boss 46c of the joint metal 46. The outer diameter portion of the auxiliary shaft 53 is inserted into the inner diameter portion of the bearing 46a to be supported by the shaft. The transfer start end of the fixed spiral shaft 52 is configured to be supported by a receiving metal 45d provided inside the upper joint case 45c.

The outer peripheral boss 46b of the joint metal 46 is
It is formed in a circular shape, and the inner peripheral portion of the transfer cylinder 49 slides on the outer peripheral portion of the circular shape. The joint metal 46 has a configuration in which an outer peripheral boss 46b and an inner peripheral boss 46c are connected by a connecting arm 46d as shown in FIGS. 5 and 6, and the lower portion of the connecting arm 46d and the inner peripheral boss 46c
The joint A with the outer diameter part of is fixed by Yosetsu or the like,
Further, the upper part of the connecting arm 46d is inserted into the hole of the outer peripheral boss 46b, and the joint B between the upper part of the connecting arm 46d and the hole of the outer peripheral boss 46b is fixed with a yosetsu or the like. The structure does not cause resistance of the grain passing through 46 parts.

As shown in FIGS. 5 and 6, a plurality of, for example, three seals 46e made of an elastic member are attached to the outer diameter of the outer peripheral boss 46b of the joint metal 46 as shown in FIGS. As a configuration, the dust in the fixed transfer tube 47 is discharged to the outside of the machine via the transfer tube 49 for transfer, as the structure in which the dust moves from the place where the seal 46e is not mounted. The movement of the transfer cylinder 49 is made smooth. As shown in FIG. 7, a reinforcing tube 49a is fixedly provided at the transfer end of the transfer tube 49, and a lower portion of the transfer end of the reinforcing tube 49a forms a downwardly protruding triangular projection 49b. As a result, dust and the like can be smoothly discharged outside the machine.

As shown in FIG. 20, the joint metal 46 may have a structure in which a link 46f having a circular cross section made of a metal material is attached to both ends of the joint metal 46 at the front and rear ends of an outer peripheral boss 46b. . Thereby, it is strong against dust and the wear resistance is improved. The transfer cylinder 49 for movement
Is required to be joined because of its long overall length. In this case, as shown in FIGS. 8 and 9, the structure can be divided into two or three, and FIG. As shown in FIGS. 10A to 10C, a fastening pin 49d is inserted into the joint link 49c, and an elastic spring 49e is provided on one side of the fastening pin 49d. At the same time, on the other end of the shaft, a fastening cam 49f, which is integrally formed by fixing a lever to the cam, is mounted with a support pin 49h. By rotating the fastening cam 49f, The joint links 49c are tightened to join the transfer cylinders 49, 49, so that the divided transfer cylinders 49, 49 can be easily joined and can be joined in a short time. did.

The transfer cylinders 49 for transfer are provided on both ends of a transfer spiral shaft 54 having a hexagonal shape.
c to support the shaft, and to move these transfer spirals 5
A plurality of transfer spirals 55b are inserted and supported between 5a and 55c, and are internally provided together with the spiral shafts 54. The transfer end of the transfer cylinder 49 is L
A discharge port 48a is provided at the transfer end portion, and a receiving metal 48b that supports the transfer end portion of the moving helical shaft 54 is provided at the upper portion of the discharge port 48a so that the transfer metal 48b is supported. , As shown in FIG.
The inner diameter of the transfer start end of the spiral inner boss 57a is
2 is inserted into the outer diameter portion of the auxiliary shaft 53 provided at the end of the transfer and is supported by a bolt 53b. The auxiliary shaft 53 and the inside of the spiral inner boss 57a are moved by the moving spiral. In this configuration, the shaft 54 moves back and forth.

A movable metal 56b having a screw hole at the center is provided on the upper part of the outer periphery of the transfer cylinder 49, and rollers 56a rotatably supported by a support plate 56 are provided at three places on the outer part. The rollers 56a are configured to rotate the outer peripheral portion 48 of the fixed transfer cylinder 47 in the front-rear direction. As shown in FIG. 1, rollers 56 d are rotatably supported by support plates 56 c at three locations on the inner diameter portion of the transfer start end of the transfer transfer tube 49, and each roller 56 d is The outer peripheral portion 48 may be configured to rotate and move in the front-rear direction. This makes the movement of the transfer cylinder 49 smooth.

Each of the transfer spirals 55a, 55b, 5
The moving helical shaft 54 for inserting and supporting the moving spiral 5c needs to be joined because of its long overall length, and the joining position at this time is, as shown in FIG.
a, 55b, 55c, and the moving helical shaft 54 in the contracted state in the shortest state.
The position is such that the moving spiral shaft 54 is not inserted into the joint metal 46 so that the moving spiral shaft 54 can be smoothly moved.

The transfer spiral 55a for transfer has a hexagonal inner diameter, a circular outer diameter and a predetermined length, and a helical inner boss 57a having a bolt insertion screw hole at the transfer start end side, and an outer helical boss 57a. As shown in FIGS. 14 and 15, the spiral plate 5 has a substantially semicircular shape, and
7c, for example, a helical outer boss 5 having a length of 1.5 pitches
7b and the outer peripheral portion of the spiral outer boss 57b.
The spiral plate 57c has a length of 5 pitches, and a reinforcing pin 57d provided on the transfer end side of the spiral plate 57c is provided.

The spiral inner boss 5 of the transfer spiral 55a
7a is fixed to the auxiliary shaft 53 of the fixed helical shaft 52
And the bolt 53b is screwed into the screw hole of the spiral inner boss 57a.
It is the structure which attached. Further, as shown in FIG. 4, the insertion state of the bolt 53 b is such that the distal end of the bolt 53 b has a small diameter, and the small diameter portion is formed in the auxiliary shaft 53.
The moving screw 55a is inserted into the moving screw 55a, so that even if the bolt 53b is strongly tightened, it does not affect the moving of the moving screw shaft 54 in the front-rear direction.

As shown in FIG. 4, the inner helical boss 57a has a circular hole having a predetermined length at the front and rear ends, and a hexagonal hexagon on the side of the round hole at the transfer end. A hole 57e is formed, and the round holes on both sides are formed to have a larger diameter than the diagonal diameter of the hexagonal hole 57e. The hexagonal hole 57e is inserted into the moving spiral shaft 54 to be supported. The moving transfer spiral 55b includes a spiral inner boss 58a having a hexagonal inner diameter, a circular outer diameter, and a predetermined length, as shown in FIGS.
The spiral outer boss 58b, which has a substantially semicircular shape shown in FIGS. 14 and 15 and is fixed to the outer diameter portion of the spiral inner boss 58a and has a length of, for example, 1.5 pitches, of the spiral plate 57c, and the spiral A spiral plate 57c having a length of 1.5 pitch fixed to the outer peripheral portion of the outer boss 58b;
c, a stopper plate 58c provided on the transfer start end side, a reinforcing pin 57d provided on the transfer end side, and the like.

The spiral inner boss 58a is shown in FIGS.
As shown in FIG. 2, the inner diameter portions at the front and rear ends have a predetermined length in the form of round holes, and a hexagonal hole 58d is formed at the side of the transfer end side at the side of the round holes. Is the hexagonal hole 5
The diameter is larger than the diagonal diameter of 8d. The inner spiral boss 58a is attached to a substantially central portion of the outer spiral boss 58b and the spiral plate 57c in the front-rear direction. The stopper plate 58c is fixed to the spiral plate 57c at a substantially right angle to the transfer direction to make the transfer of the grain smooth.

The transfer transfer spiral 55c has a hexagonal inner diameter, a circular outer diameter and a predetermined length, and has a predetermined length, and has a bolt insertion screw hole at the transfer end side, and an outer spiral boss 59a. As shown in FIGS. 14 and 15, the spiral plate 57 has a substantially semicircular shape and is fixed to the diameter portion.
c, for example, a spiral outer boss 59 having a length of 1.5 pitches
b and 1.5 fixed to the outer peripheral portion of the spiral outer boss 59b.
The spiral plate 57c has a pitch length, and a stopper plate 58c provided on the transfer start end side of the spiral plate 57c.

The outer diameter portion of the transfer spiral shaft 54 at the end of transfer is inserted into the inner diameter portion of the receiving metal 48b provided in the transfer tube 49 to support the shaft, and the inside of the spiral of the transfer screw 55c. In this configuration, a bolt is screwed into the screw hole of the boss 59a and attached to the moving spiral shaft 54. The transfer spirals 55a, 55b, and 55c are overlapped with each other to be in a contracted state. In this contraction, the end faces of the adjacent spiral inner bosses 57a, 58a, and 59b come into contact with each other. And is moved in the contraction direction by being pushed, and each spiral plate 57c
Are superimposed to be in a contracted state, and in the expansion state, the superimposition of each spiral plate 57c is in an open state.

As shown in FIG. 21, the transfer cylinder 49 for transfer is provided with a terminal metal 60a using a transfer terminal portion of the transfer cylinder 49 for transfer as a divisional system, and a helical shaft 54 for movement is mounted on the terminal metal 60a. Each of the transfer spirals 55a, 55b, 55c is inserted into and supported by the transfer spiral shaft 54, and the terminal metal 60a is mounted on the transfer cylinder 49 with bolts, nuts, and the like. And
The terminal metal 60a and the moving helical shaft 54 may be integrally disassembled, thereby facilitating assembly and disassembly.

In the moving device 50, as shown in FIG. 1, a moving motor 61 is provided on the base side of an inverted L-shaped support plate 60 having a circular cross section provided at the distal end of the upper joint case 45c. The receiving metal 62 is provided at the tip end, and the moving motor 61 and a moving shaft 63 provided with a helical screw 63a on the outer periphery are integrally formed and provided, and these are integrally bolted to the support plate 60 and a nut. It is a configuration provided by mounting. The moving shaft 63 is screwed into a moving metal 56b provided on an outer peripheral portion of the moving transfer cylinder 49, and a distal end portion is supported by the receiving metal 62. Also, this moving metal 56
b is the transfer cylinder 4 as shown in FIGS.
9, support plates 64, 64 are provided at predetermined intervals on the outer diameter portion.
A support pipe 65 is provided on the support plates 64, 64, and a moving pin 66 is inserted into the support pipe 65, and the upper part of the moving pin 66 is attached to the support plate 64 with a split pin 67 or the like. Alternatively, the lower side may be configured to be inserted between the helical screw 63a of the moving shaft 63, thereby smoothing the movement of the transfer cylinder 49.

On the lower side of the support plate 60, a position where the moving transfer cylinder 49 is in the shortest contracted state and the longest extended state as shown in FIG. ON / OFF switch type contraction side sensor 68 which detects by contact of moving metal 56b for device 50
And the extension side sensor 69, and the movable metal 5 to the contraction side sensor 68 and the extension side sensor 69.
6b to prevent the direct contact and reduce the impact
On the near side (lower side), an elastic member, for example, a spring, and a relief member 70 or 71 made of a resin material or the like is provided to prevent breakage. The contraction-side sensor 68 and the extension-side sensor 69 are ON-OFF controlled via these relaxation members 70 and 71,
This ON-OFF is input to a CPU provided in the operating device 15, and by this input, the rotation start control and the stop control of the moving motor 61 are performed by the output from the CPU, and the movement control of the transfer cylinder 49 is performed. Is performed.

The forward / reverse rotation of the moving motor 61 causes the moving shaft 63 to rotate forward / reverse, and the moving metal 56b
, The transfer cylinder 49 for movement is configured to extend and contract with respect to the fixed transfer cylinder 47 along the outer peripheral portion of the fixed transfer cylinder 47, and by the movement of the transfer cylinder 49,
The moving transfer spirals 55a, 55b, 55c and the like that are housed therein are superimposed and extendable.

The support plate 60 is formed in a substantially circular shape and is covered by a movable cover 72 having a lower part with an opening 71a. The moving cover 72 as shown in FIGS.
Is formed in an inverted U-shape, and the base of the moving cover 72 is mounted on a mounting plate 73 mounted on the upper joint case 45c with bolts, nuts, and the like. The sensors 68 and 69 and the relaxing members 70 and 71 may be provided, and the moving shaft 63 may be provided in the interior, thereby reducing costs and weight.

The upper joint case 74 may be formed as shown in FIG. 26, and the upper joint case 74 may be provided with a moving motor 61 and the like provided therein, thereby improving the commercial value of the appearance. , And cost reduction. When the transfer cylinder 49 is moved to the shortest contracted state and stored in the combine 1, the top end (a) of the transfer cylinder 49 as shown in FIG. The combine 1 is housed in a barn so as to be easily stored in the barn so as to be located inside from the tip (b) of the weeding body 9.

As shown in FIG. 18, the operating device 15 includes an operating lever 75 for manually operating the moving transfer tube 49 of the telescopic grain transfer device 3 in the vertical and horizontal directions. ON-OFF telescopic switch 76 for automatic movement, ON-OFF manual telescopic switch 77 for manually moving the transfer cylinder 49, and ON-OFF direction for stopping the operation of the transfer cylinder 49. Is provided with the stop switch 78.

When the telescopic switch 76 is turned on, the transfer cylinder 49 of the telescopic grain transfer device 3 is in the shortest contracted state or the longest until the contraction side sensor 68 and the extension side sensor 69 operate. It operates until it is in the extended state. In order to stop this movement at a predetermined position on the way, a configuration may be adopted in which a potentiometal is provided and the movement is stopped at an arbitrary position.

When the moving transfer cylinder 49 moves automatically, when the moving metal 56b reaches a predetermined position in front of the mounting position of the contraction side sensor 68 and the extension side sensor 69, the moving transfer cylinder 49 The CPU in the operating device 15 controls the moving speed of the operating device 49 to be lower by a predetermined speed.

[Brief description of the drawings]

FIG. 1 is an enlarged side view showing a partially sectioned telescopic grain transfer device.

FIG. 2 is an enlarged side view of the telescopic grain transfer device in an extended state.

FIG. 3 is an enlarged side view of the telescopic grain transfer device in a contracted state.

FIG. 4 is an enlarged side sectional view of a joint between a fixed transfer tube and a transfer transfer tube.

FIG. 5 is an enlarged side sectional view of a joint metal.

FIG. 6 is an enlarged front view of a joint metal.

FIG. 7 is an enlarged side perspective view of a part of the transfer cylinder for transfer.

FIG. 8 is an enlarged side perspective view showing a state in which the transfer tube is joined.

FIG. 9 is an enlarged side perspective view of a transfer cylinder before joining.

FIG. 10 is an operation diagram at the time of joining a transfer cylinder for movement.

FIG. 11 is an enlarged side perspective view of the transfer spiral.

FIG. 12 is an enlarged side view of a transfer spiral for movement.

FIG. 13 is an enlarged front view of the transfer spiral.

FIG. 14 is an enlarged side view of a spiral outer boss.

FIG. 15 is an enlarged front view of a spiral outer boss.

FIG. 16 is an overall side view of the combine.

FIG. 17 is an overall plan view of the combine.

FIG. 18 is an enlarged plan perspective view of the operating device of the combine.

FIG. 19 is an enlarged sectional side view of the threshing machine.

FIG. 20 is a view showing another embodiment, and is an enlarged side sectional view of a joint metal.

FIG. 21 is a view showing another embodiment, and is an enlarged side view of a transfer cylinder portion for movement.

FIG. 22 is a view showing another embodiment, and is an enlarged side view of a moving shaft portion.

FIG. 23 is a view showing another embodiment, and is an enlarged front view of a moving shaft portion.

FIG. 24 is a view showing another embodiment, and is an enlarged side sectional view of a moving cover portion.

FIG. 25 is a view showing another embodiment, and is a cross-sectional view taken along line FF of FIG. 24;

FIG. 26 is a view showing another embodiment, and is an enlarged side perspective view of the upper joint case part.

[Explanation of symbols]

 47 Fixed transfer tube 48 Outer peripheral portion 49 Transfer transfer tube 50 Moving device 51 Transfer spiral 55b Transfer transfer spiral 56b Moving metal 68 Contraction side sensor 69 Extension side sensor 70 Relaxing member 71 Relaxing member

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B396 JA04 JC07 KA02 KE04 LA07 LE02 LE03 LE04 LE05 LE09 LE18 LE20 LR02 LR08 LR13 LR15 LR19 MA02 MA05 MA07 MC02 MC07 MC13 QA02 QA12 QC01 QE01 QE05 QE25 RA10 RA22 RA25

Claims (1)

[Claims] 1. A transfer spiral 5 for receiving and transferring grain supply.
1 and a moving transfer tube 4 having a plurality of moving transfer spirals 55b, which are superimposed and expandable and contractible.
9 is movably inserted into an outer peripheral portion 48 of the fixed transfer cylinder 47 and a combiner or the like provided with a movement device 50 for moving the transfer cylinder 49 for movement. The contraction-side sensor 68 and the extension-side sensor 6 for detecting the final position in the contraction direction and the final position in the extension direction for controlling the stoppage of the transfer cylinder 49 by contact.
9. A telescopic grain transfer device such as a combine, wherein buffer members 70 and 71 are provided on the lower side in the transfer direction with respect to the transfer metal 9 to reduce the impact when the moving metal 56b abuts.