JP4289618B2 - Self-decomposing combine grain transport structure - Google Patents

Description

  The present invention equips a harvesting part supported so as to be able to swing up and down with a feeding and conveying device that conveys the harvested culm backward, and the cereal that has been conveyed by the feeding and conveying device falls to the feed chain of the threshing device The present invention relates to a cereal carrying structure for a self-removing combine that is configured to be supplied in a posture and is configured to adjust a handling depth by swinging a supply and conveying device up and down around a rear fulcrum.

As the grain shed transport structure of the self-decomposing combine, the supply transport device for transporting the harvested cereal toward the feed chain is composed of a tip locking transport mechanism and a stock holding and transport mechanism, and this supply transport A device in which the device is configured to swing up and down around the rear fulcrum to adjust the handling depth is widely used (see, for example, Patent Document 1).
JP 2003-21226 A

  In the grain straw transporting structure having the above-described structure, the feed transporting device including the tip locking transporting mechanism and the stock holding mechanism is controlled by swinging up and down around the rear fulcrum to adjust the depth. The transmission mechanism of the possible tip locking and transport mechanism and the stock holding and transport mechanism becomes complicated, and the weight of the entire supply and transport apparatus becomes considerably large. A large load is applied to the actuator that swings this up and down. It contributed to lowering the durability.

  The present invention has been made paying attention to such points, and is capable of satisfactorily supplying the cereal to the feed chain while simplifying the cereal transportation structure, and is lightly equipped with the feeding and conveying device. The purpose is to enable quick adjustment of the handle depth by swinging up and down.

1st invention equips the cutting part supported so that rocking | fluctuation up and down is equipped with the supply conveyance apparatus which conveys the harvested culm backward, The feed chain of the threshing apparatus is the cereal grain conveyed by the said supply conveyance apparatus. In the cereal conveyance structure of the self-removable combine that is configured to supply in a sideways posture and configured to adjust the handling depth by swinging the supply and conveyance device around the rear fulcrum,
The supply and transport device is configured with a tip pinching and transporting mechanism for gripping and transporting the vicinity of the head of the grain pod, and from the front part of the counter shaft horizontally supported on the swinging fulcrum of the cutting part to the rear part of the counter shaft. In addition, a vertically rotating stock transport chain separate from the feed chain is provided, and the stock transport chain is interlocked and connected to the end of the counter shaft on the feed chain side. In conjunction with the threshing device, with the outer end of the stock transport chain positioned inside the inner end of the feed chain, the end of the stock transport chain is located near the lateral inner side at the start end of the feed chain. characterized in that which had been located.

  According to the above configuration, the handling depth adjustment according to the length of the hook may be performed by swinging up and down the supply and transport device configured by the tip pinching and transporting mechanism. The transmission structure is also simpler and lighter than the supply / conveyance device.

  In addition, the cereal grains that are transported while being held near the neck by the supply transport device are received by the stock transport chain at the stock source side and sent backward at a speed synchronized with the supply transport device, and in a sideways posture Then, it is delivered to the starting end of the feed chain and inserted into the threshing device at a predetermined handling depth.

  Therefore, according to the first invention, it is possible to satisfactorily supply the cereals to the feed chain while simplifying the cereal conveyance structure, and the feed conveyance device is easily swung up and down to handle the depth. It becomes easy to adjust quickly.

According to a second invention , in the first invention,
The part of the stock transport chain that extends forward from the counter shaft can be repositioned only up and down without changing the position of the stock transport chain. It is configured.

  According to the above configuration, during normal cutting and traveling, the second half of the stock transport chain is set to the upper position, and the stock side of the cereal that has been transported by the feed transport device is transported by the stock transport chain. Can be reliably fed into the starting end portion of the body in a predetermined sideways posture. Moreover, at the time of the pillow threshing operation in which the cereals of the hand-cut headland are manually supplied to the feed chain, the second half of the stock transport chain is switched to the lower position so as to be lower than the starting end of the feed chain. That is, at the time of this pillow threshing operation, the machine body travel is stopped and the cutting unit is cut off, so that the stock transport chain linked to the counter shaft of this cutting unit is also stopped, and the stopped stock The conveyor chain can be lowered so that it does not interfere with the supply of the hand-harvested cereal to the starting end of the feed chain.

  FIG. 1 shows an overall side view of the self-removing combine. In this self-detaching combine, a two-cutting mowing unit 3 is connected to a front part of a traveling machine body 2 having a pair of left and right crawler traveling devices 1 so as to be movable up and down, and an operating unit 4 and a threshing are connected to the traveling machine body 2. The apparatus 5 and the grain collection tank 6 are mounted.

  The mowing unit 3 includes an elevating device 7 that raises the planted cereal to a predetermined mowing posture, a clipper-type mowing device 8 that cuts the erecting cereal culm, and an auxiliary transport that gently scrapes the harvested cereal backward. The belt 9, the rotary packer 10 that rakes the stock of the harvested cereals backward and merges and conveys it, the supply conveyance device 11 that conveys the merged cereals upward and backward, and the like. The entire portion 3 is swung up and down by the hydraulic cylinder 12 around the rocking support point P at the rear.

  FIG. 2 shows an outline of the transmission structure in this combine. As shown in the figure, a part of the power of the engine 15 disposed below the seat of the driving unit 4 is partly connected to a main transmission 16 which is a hydrostatic continuously variable transmission capable of switching between forward and reverse, and a tension type main clutch 17. The other part of the power of the engine 15 is transmitted to the threshing device 5 via a tension-type threshing clutch 18, and a handling cylinder 19, a feed chain 20, All the mechanisms are driven at a constant speed. Then, the shift output of the main transmission 16 is input to the transmission case 21 and branched into a traveling system and a working system, and the power of the traveling system is shifted to a plurality of stages via a sub-gear transmission means (not shown). It is transmitted to the crawler traveling device 1.

  Further, the power of the work system taken out from the mission case 21 through the PTO shaft 22 is transmitted only to the mowing unit 3 through the one-way clutch 23. That is, the counter shaft 24 and the PTO shaft 22 that are horizontally supported concentrically with the rocking fulcrum P at the rocking base end of the cutting part 3 are belt-linked via the tension type cutting clutch 25, and the counter shaft The pulling device 7, the mowing device 8, the auxiliary transport belt 9, the rotary packer 10, and the supply transport device 11 are driven at a speed synchronized with the traveling speed by the power transmitted to 24.

  Here, the supply and transport device 11 is constituted by a tip pinching and transporting mechanism 26 that grips the vicinity of the head of the cereal with the transport chain 26a and the gripping rail 26b and transports it backward and upward. Is swung up and down around the swing fulcrum P to change the pinching height position of the harvested cereal cocoon, thereby changing the cereal delivery position with respect to the feed chain 20 in the cocoon length direction. A handle depth adjustment function that changes and adjusts the insertion length is provided.

  In addition, a stock transport chain 27 is provided between the supply transport device 11 and the feed chain 20 to receive the stock of the cereals that have been transported by the supply transport device 11 and lead it to the start end of the feed chain 20. ing. The stock transport chain 27 is composed of a chain with a protrusion that is wound in a longitudinal direction, and is driven at a speed synchronized with the supply transport device 11.

  That is, the left end portion of the counter shaft 24 is extended, and the drive sprocket 28 attached to the left extending end of the counter shaft 24 and the front free-sprocket sprocket 29 disposed in front of the counter shaft 24, The stock transport chain 27 is wound around the rear idler sprocket 30 provided at a position rearward of the counter shaft 24, so that the supply transport device 11 and the stock transport chain 27 run at their respective traveling speeds. It is designed to be driven at a speed synchronized with the above.

  As shown in FIG. 3, the rear idle sprocket 30 around which the stock transport chain 27 is wound is configured so that the position can be changed up and down. From the counter shaft 24 of the stock transport chain 27 according to the work situation. The height of the rear half can be changed. That is, at the time of normal cutting, as shown in FIG. 3 (a), the rear idle sprocket 30 is set at the upper position, and the stock side of the cereal that has been transported by the supply transport device 11 is set to the stock transport chain. 27, and is reliably fed into the starting end portion of the feed chain 20 in a predetermined sideways posture. Further, at the time of threshing the pillow for manually feeding the harvested cereal grains to the feed chain 20, as shown in FIG. 3 (b), the latter half of the stock transport chain 27 is the start end of the feed chain 20. The rear idle sprocket 30 is set at a lower position so as to be lower. That is, at the time of this pillow threshing operation, since the machine travel is stopped and the cutting clutch 25 is cut to cut off the driving of the cutting unit 3, the stock transport chain linked to the driving system of the cutting unit 3 is interlocked. 27 is also stopped, and the stopped stock transport chain 27 is lowered so as not to obstruct the supply of the hand-harvested cereal to the starting end of the feed chain 20. In addition, the stock transport chain 27 which has stopped can be used as a temporary storage stand for the manual cereal basket.

  [Another Example]

  (1) In the above embodiment, the case where the drive sprocket 28 of the stock transport chain 27 is directly attached to the extending end of the countershaft 24 has been shown. However, another chain transmission mechanism is provided between the countershaft 24 and the drive sprocket 28. Or a gear transmission mechanism may be interposed.

  (2) A tip-carrying chain that is driven in synchronization with the stock-carrying transport chain 27 is arranged in parallel at the tip side of the stock-carrying transport chain 27, and the grain in a lying position that has been transported by the feed transporting device 11 It can also be carried out in such a way that a forced conveying action is given to the culm plant side and the tip side and the threshing device 5 is fed.

Side view of self-removing combine Transmission system diagram Side view of the main part

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Cutting part 5 Threshing apparatus 11 Supply conveyance apparatus 20 Feed chain 24 Countershaft 26 Ear tip clamping conveyance mechanism 27 Stock former conveyance chain P Oscillation fulcrum

Claims (2)

The cutting portion that is vertically swingably supported, equipped with a feeding and conveying device for conveying the culms that remove all laminae backward feed in the lateral falling posture feed chain threshing apparatus culms which was conveyed by the feed conveying device In the cereal conveyance structure of the self-decomposing combine configured to adjust the depth of handling by swinging the supply and conveyance device up and down around the rear fulcrum,
The supply and transport device is configured with a tip pinching and transporting mechanism for gripping and transporting the vicinity of the head of the grain pod, and from the front part of the counter shaft horizontally supported on the swinging fulcrum of the cutting part to the rear part of the counter shaft. A vertical rotating stock transport chain different from the feed chain is provided ,
While interlocking and connecting the stock transport chain to the end of the counter shaft on the feed chain side, interlocking the terminal side of the feed chain with the threshing device,
With the outer end of the stock transport chain positioned inside the inner end of the feed chain, the end of the stock transport chain is positioned in the vicinity of the lateral inner side at the start end of the feed chain, Self-decomposing combine cereal transport structure. The part of the stock transport chain that extends forward from the counter shaft can be repositioned only up and down without changing the position of the stock transport chain. The cereal conveyance structure of the self-decomposing combine according to claim 1 configured.

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