JP2006034134A - Autodetachable type combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an autodetachable type combine harvester so constructed that grain culms conveyed by a longitudinal conveying apparatus of a reaping section are fed in a laterally falling posture from the grain culm feed port of a threshing apparatus to a forwardly projected inlet plate, and enabling grain culms to be smoothly fed with no stagnation thereof or floating straw on the inlet plate in normal reaping and harvesting operations and also enabling grain culms to be smoothly threshed with no ear breakage and/or slipping off through suppressing grain culms from being fed to the threshing apparatus in a posture with their stock feet much advanced. <P>SOLUTION: This autodetachable type combine harvester has the following construction: An ear tip inserting device 33 functioning to feed grain culms at the inlet plate 31 toward the grain culm feed port 30 is set and designed to be drivable at a conveying speed Vd higher than that Vf of a feed chain 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a self-decomposing combiner configured to supply cereals conveyed by a vertical conveying device of a reaping unit to an inlet plate projecting forward from a cereal supply port of a threshing device in a sideways posture.

  In the harvesting operation with the above-mentioned self-removing combine harvester, the crops that have fallen backwards are harvested, so-called counter-cutting, long-cropping crops, harvesting in fields with many weeds, wheat, etc. When harvesting crops that are prone to floating straw, cereals are likely to stay at the entrance plate, and cereals are brought into the cereal supply port with a delay in the tip of the crop, and are easily cut off or pulled out. Become. In addition, if the cereals and floating straw stay on the entrance plate, the conveyance clogging occurs and the operation is forced to be interrupted.

In order to solve such a problem, for example, as shown in Patent Document 1, the tip side of the cereal supplied to the inlet funnel (inlet plate) 31 is forced toward the cereal supply 30. Means for arranging a tip carrier (conveying chain) 36 that conveys at the same speed as the feed chain 25 has been proposed.
Japanese Patent Publication No. 60-6604

  According to the above suggestion means, since the tip carrier forcibly sends the tip side of the cereal to the rear in front of the cereal supply port in the threshing device, it is possible to reduce the stay of cereal and floating straw. However, when the cereals conveyed from the cutting part are supplied to the inlet plate in a delayed tip position, they are delivered to the feed chain in the same position, that is, in advance of the stock, and the teeth of the barrel are fed. It was driven from the root part close to the chain, and a strong ironing action acted on the grain base side of the cereals, which made it easier for the ears to be cut and the cereals to be pulled out into the handling room.

  The present invention has been made paying attention to such points, and can smoothly supply cereals without stagnation or floating straw at the entrance plate, and the stock company has greatly advanced. The purpose of the present invention is to prevent the cereals from being supplied to the threshing device in a posture so that the threshing process without cutting or pulling can be performed smoothly.

1st invention is the self-detaching type | mold combine comprised so that the corn straw conveyed by the vertical conveyance apparatus of the reaping part might be supplied to the entrance plate projected ahead from the corn flour supply port of the threshing apparatus in a sideways attitude | position. ,
A tip feeding device is provided that feeds the cereals of the inlet plate toward the cereal supply port, and the tip feeding device is configured to be drivable at a transport speed greater than the transport speed of the feed chain. Features.

  According to the above configuration, even if the culm that has been conveyed by the vertical conveying device of the cutting part is supplied to the inlet plate with a delay in the tip, the tip feeding device supplies the culm tip side faster than the stock source side. Since it is sent toward the mouth, the culm that is nipped by the feed chain and conveyed backward is inserted into the cereal supply port after the tip delay at the time of vertical conveyance is eliminated or reduced.

  Therefore, according to 1st invention, while being able to perform smooth cereal supply without the stay of cereals and floating straw on an entrance plate, cereals are supplied to a threshing device in the posture where a stock was greatly advanced It is possible to smoothly perform the threshing process without cutting off or pulling out.

According to a second invention, in the first invention,
The tip feeding device is configured to be driven at a constant speed larger than the conveying speed of the feed chain.

  According to the above configuration, the tip feeding device is always operated faster than the feed chain driven at a constant speed, and the effect of the first invention can be exhibited accurately.

According to a third invention, in the first or second invention,
The conveying speed of the tip feeding device is set to be larger than the conveying speed of the tip locking and conveying mechanism constituting the vertical conveying device.

  According to the above configuration, the tip side of the corn straw that has been conveyed by the vertical conveying device is sent out toward the corn straw supply port at a speed higher than the speed at which it has been carried in as soon as it is supplied to the inlet plate. Even if the tip is delayed in the vertical conveyance, the tip delay is quickly eliminated or reduced by the feeding at the inlet plate.

A fourth invention is the invention according to any one of the first to third inventions,
The tip feeding device is configured to be interlocked with the transmission system of the mowing unit so as to be driven in synchronization with the vertical conveying device.

  According to the above configuration, the conveying speed of the vertical conveying device is slow (fast) and the conveying speed of the tip feeding device is also slow (fast), and the tip side of the cereal of the inlet plate is not fed faster than necessary, always The tip delay is preferably eliminated or reduced.

A fifth invention is the invention according to any one of the first to fourth inventions,
The vertical conveying device is configured to be driven in synchronization with a traveling speed.

  According to the above configuration, even if the traveling speed is increased to increase the yield per unit time, or the traveling speed is decreased to decrease the yield per unit time, the per unit transport length of the vertical transport device The amount of corn straw held is small, and it is easy to stabilize the corn straw conveying posture during vertical conveyance, which is effective in smoothly performing forced feeding at the inlet plate with little disturbance of posture.

A sixth invention is the invention according to any one of the first to fifth inventions,
A stock source feeding device for sending a stock source side of cereals conveyed from a cutting unit toward a feed chain is arranged at a stock source side position from the tip feeding device.

  According to the above configuration, the culm that is conveyed by the vertical conveying device and supplied to the inlet plate is not only actively fed to the cereal supply port on the tip side, but also the stock side is also fed to the feed chain. It is possible to avoid the situation where the feeding is excessively used and the tip is inserted into the threshing device with an unnecessarily leading tip, and the culm insertion with an appropriate leading tip can be performed.

In a sixth aspect based on the sixth aspect,
The stock source feeding device and the tip feeding device are configured to be driven synchronously.

  According to the above configuration, the conveyance speed of the stock source feeding device and the conveyance speed of the tip feeding device can be stably maintained at a predetermined ratio, and even if the conveyance speed of the tip feeding device is increased, the tip It is possible to avoid a situation in which the feeding is excessively used and inserted into the threshing apparatus with a tip leading more than necessary.

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

  As shown in FIG. 3, 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 a mowing cereal. Auxiliary conveyor belt 9 that gently rakes back, rotary packer 10 that rakes and conveys the roots of the harvested cereals, and a pair of left and right tip locking conveyor mechanisms 11 and 19 that merge the harvested cereals at one location The sandwiching and transporting mechanisms 12 and 20, a vertical transporting device 13 that transports the combined cereals upward and rearward, and the like, are configured, and the entire cutting unit 3 is centered around the fulcrum P at the rear and the hydraulic cylinder 14. It can be swung up and down.

  The vertical transfer device 13 includes a rear extension of one of the tip locking transfer mechanisms 11, a movable stock holding mechanism 15, and a side turn type auxiliary transfer mechanism 16. By moving the transport mechanism 15 up and down around the front fulcrum, the cereal delivery position to the feed chain 17 arranged on the outer surface of the threshing device 5 is changed in the cocoon length direction, and the culm to the threshing device 5 A handle depth adjustment function that changes and adjusts the insertion length is provided.

  FIG. 4 shows an outline of the transmission structure in this combine. As shown in the figure, a part of the power of the engine 21 disposed below the seat of the driving unit 4 is tensioned to the main transmission 22 which is a hydrostatic continuously variable transmission (HST) that can be switched between forward and reverse. A belt is transmitted via the main clutch 23, and another part of the power of the engine 21 is transmitted to the threshing device 5 via a tension-type threshing clutch 24. All the mechanisms such as the chain 17 are driven at a constant speed. Then, the shift output of the main transmission 22 is input to the mission case 25 and branched into a traveling system and a working system. It is transmitted to the crawler traveling device 1.

  Further, the power of the work system taken out from the transmission case 25 via the PTO shaft 26 is transmitted only to the cutting unit 3 via the one-way clutch 27 only for the normal rotation power. That is, the counter shaft 28 and the PTO shaft 26 that are horizontally supported concentrically with the fulcrum P at the oscillating base end of the cutting portion 3 are belt-linked via the tension type cutting clutch 29, With the transmitted power, the pulling device 7, the mowing device 8, the auxiliary conveying belt 9, the rotary packer 10, the tip locking conveying mechanisms 11, 19, the stock holding and conveying mechanisms 12, 20, and the vertical conveying device 13 are used. Is driven at a speed synchronized with the traveling speed.

  As shown in FIGS. 5 and 8, the front end of the threshing device 5 is formed with a cereal supply port 30 for receiving the culm in a sideways posture, and an inlet plate 31 along the lower side of the cereal supply port 30 is provided. The head portion of the cereal that is projected forward and conveyed by the vertical conveying device 13 is delivered to the feed chain 17 and the tip side of the cereal that has been conveyed is dropped onto the inlet plate 31 and supplied. It has come to be.

  A tip feeding device 33 is provided along a long slit 32 before and after the inlet plate 31 is formed, and a stock supply device 34 is provided between the feed chain 17 and the inlet plate 31. Has been.

  As shown in FIG. 6, the tip feeding device 33 is configured by winding and tensioning a transport chain (transport endless belt) 35 having a transport protrusion over a drive sprocket 36 and front and rear idler wheels 37 and 38. The upper part of the upper part protrudes from the slit 32 and feeds the tip side of the cereal that has been supplied to the inlet plate 31 toward the cereal supply port 30. Here, as shown in FIG. 5, the tip feeding device 33 is located substantially directly below the handling cylinder axis X in the front view, that is, from the grain main part of the cereal in a standard handling depth state. It is deployed so that it can move at a position outside the stock market.

  As shown in FIG. 7, the stock supply device 34 is configured by winding and stretching a transport chain 39 with transport protrusions over a drive sprocket 40 and front and rear idlers 41 and 42. Then, the stock side of the cereal that has been supplied to the inlet plate 31 is fed toward the feed chain 17.

  Next, the drive structure of the tip feeding device 33 and the stock source feeding device 34 will be described. The transmission case 43 provided inside the machine body near the front end of the feed chain 17 is provided with a stock drive shaft 44 having a drive sprocket 40 of the stock feed device 34, and concentric with the stock drive shaft 44. A driving sprocket 36 of the tip feeding device 33 is attached to the connected tip driving shaft 45 so that the tip feeding device 33 and the stock feeding device 34 are driven in synchronization. The input shaft 46 and the stock drive shaft 44 provided in the transmission case 43 are gear-linked, and the input shaft 46 and the counter shaft 28 are linked and connected via the transmission chain 47, so that the cutting part 3, the tip feeding device 33, and the stock source feeding device 34 are synchronously driven.

  That is, the tip locking transport mechanism 11 and the stock holding and transport mechanism 15 of the vertical transport device 13 change from zero speed to a predetermined maximum speed in synchronization with the traveling speed, and the tip feeding device 33 and the stock sending device. 34 also changes from zero speed to a predetermined maximum speed in synchronization with the traveling speed.

  Here, the conveyance speed Vh of the tip locking conveyance mechanism 11 at the minimum traveling speed at the time of normal harvesting and harvesting is larger than the conveyance speed (constant) Vf of the feed chain 17, and the conveyance of the tip locking conveyance mechanism 11 is performed. The conveyance speed Vd of the tip feeding device 33 is set to be higher than the speed Vh (Vd> Vh> Vf). The conveyance speed Vf of the feed chain 17 is set to about 70% of the maximum conveyance speed Vd (max) of the tip feeding device 33.

  The tip feeding device 33 is supported so as to be swingable up and down around the idler wheel 37 at the front end, and the entire upper conveying path is located above the inlet plate 31 as shown in FIG. 6, and a storage position where most of the upper conveyance path is immersed below the inlet plate 31, as shown in FIG. 6 (b). At the time of normal harvesting and harvesting, the head of the cereal that is driven at the transporting operation position and is supplied to the inlet plate 31 by the vertical transport device 13 is transported toward the cereal supply port 30. In addition, when the machine is stopped and pillow threshing is performed, the head feeding device 33 is switched to the storage position, and the cereal of the hand-cut headland is manually fed to perform the pillow threshing process. In this case, since the main transmission 22 is switched to the neutral stop position or the main clutch 23 is disengaged and the mowing clutch 29 is disengaged, the counter shaft 28 is stopped. The head-feeding device 33 and the stock-source sending device 34 that are linked together are also stopped.

  [Other Examples]

  (1) The tip feeding device 33 can be linked to the feed chain 17 and driven at a constant speed. In this case, the conveyance speed Vh of the tip locking mechanism 11 at the minimum traveling speed at the time of normal harvesting and harvesting is greater than the conveyance speed (constant) Vf of the feed chain 17, and the conveyance of the tip locking conveyance machine 11 is performed. It is desirable to set the conveyance speed Vd of the tip feeding device 33 to be higher than the speed Vh.

  (2) The tip feeding device 33 can also be constituted by a conveyor belt in which a conveyor protrusion is integrally formed, or a conveyor chain in which a conveyor protrusion is pivotally attached so as to be able to be raised and lowered.

Side view of self-removing combine Top view of self-decomposing combine Schematic plan view of the cutting part Transmission system diagram Front view of threshing device Side view of the tip feeding device Side view of stock transfer device Top view of threshing device front

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Cutting part 5 Threshing device 11 Tip locking mechanism 13 Longitudinal transfer device 30 Grain supply port 31 Inlet plate 33 Tip feeding device 34 Stock source feeding device Vd Feeding speed Vf Feed chain feeding speed Vh Conveying speed of the tip locking mechanism

Claims (7)

In the self-decomposing combine that is configured to supply the cereals conveyed by the vertical conveying device of the reaping unit in a laid down posture to the inlet plate protruding forward from the cereal supply port of the threshing device,
A tip feeding device is provided that sends the cereals of the inlet plate toward the cereal supply port, and the tip feeding device is configured to be driven at a transport speed higher than the transport speed of the threshing feed chain. A self-removing combine that features   The self-detaching combine according to claim 1, wherein the tip feeding device is configured to be driven at a constant speed larger than a conveying speed of the threshing feed chain.   The self-removing combine according to claim 1 or 2, wherein a conveying speed of the tip feeding device is set to be larger than a conveying speed of a tip locking and conveying mechanism constituting the vertical conveying device.   The self-removing combine according to any one of claims 1 to 3, wherein the tip feeding device is configured to be interlocked with the transmission system of the cutting unit so as to be driven in synchronization with the vertical conveying device.   The self-removable combine according to any one of claims 1 to 4, wherein the vertical conveying device is configured to be driven in synchronization with a traveling speed.   The stock source feeding device for sending the stock source side of the cereal cocoon conveyed from the cutting part toward the feed chain at the stock source side position from the tip feeding device. The self-decomposing combine according to any one of -5.   7. The self-removing combine according to claim 6, wherein the stock-feeding device and the tip-feeding device are configured to be driven synchronously.

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