JP2019165682A - Combine - Google Patents

Abstract

To provide a combine capable of preventing waste culms discharged from the rear end of a receiving net from entering oscillation separation equipment.SOLUTION: A combine includes a threshing cylinder 31, a thresher having a receiving net 32 provided under the threshing cylinder 31, and oscillation separation equipment 41 for oscillating and separating threshed object leaking down from the receiving net 32 by being oscillated in a cross direction. The rear end of the receiving net 32 is positioned on the furthermore machine body rear than the rear end of the oscillation separation equipment 41. Hereby, waste culms discharged from the rear end of the receiving net 32 can be prevented from entering the oscillation separation equipment 41.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a combine.

  For example, as described in Patent Document 1, a combine threshing apparatus includes a handling cylinder that performs a threshing process on a cereal basket, and a receiving net provided below the handling cylinder. The receiving net leaks the threshing product while supporting the cereal bowl conveyed by the handling cylinder. The threshing processed material leaked from the receiving net is supplied to a swing sorting device that performs sorting by swinging in the front-rear direction. Grains that have not leaked from the receiving net are discharged as waste from the rear end of the receiving net.

  By the way, in the combine described in Patent Document 1, the rear end of the receiving net is located in front of the fuselage rather than the rear end of the swing sorting device. In such a configuration, the waste discharged from the rear end of the receiving net enters the swing sorting device, and as a result, the swing sorting device may be clogged or the sorting efficiency of the swing sorting device may be deteriorated.

JP 2014-14329 A

  This invention is made | formed in view of the said situation, The objective is to provide the combine which can prevent that the waste discharged | emitted from the rear-end part of a receiving net | network enters into a rocking | swiveling sorter.

  The combine according to the present invention swings a threshing device having a handling cylinder and a receiving net provided below the handling cylinder, and swings a threshing product that has leaked from the receiving net by swinging in the front-rear direction. And a rear end of the receiving net is located behind the rear end of the swing sorting device. Thereby, the waste discharged from the rear end of the receiving net can be prevented from entering the swing sorting device.

  It is preferable that a diffusion plate is provided at the rear end portion of the swing sorting device to receive the waste discharged from the rear end portion of the receiving net. According to such a configuration, the waste can be diffused and discharged by receiving the waste with the diffusion plate provided at the rear end of the swing sorting device.

  The swing sorting device is detachably attached to the threshing frame, and can be gripped by an operator when the swing sorting device is removed from the threshing frame at a rear end portion of the swing sorting device. It is preferable that a grip portion is provided. According to such a configuration, an operation of pulling out the swing sorting device is facilitated, and workability when removing the swing sorting device is improved.

  A diffusion plate is provided at the rear end of the swing sorting device to receive the waste discharged from the rear end of the receiving net, and the swing sorting device is detachably attached to the threshing frame. It is preferable that a gripping portion that can be gripped by an operator when the swing sorting device is removed from the threshing frame is provided below the diffusion plate. By providing a grip portion below the diffusion plate provided at the rear end of the swing sorting device, the operation of pulling out the swing sorting device is facilitated, and workability when removing the swing sorting device is improved. Thus, it is possible to prevent the waste from coming into contact with the gripping portion.

Combine left side view Combine right side view Top view of the combine Diagram showing threshing device and sorting device Perspective view of swing sorting device Left side view showing the rear end of the barrel, receiving net and swing sorting device FIG. Bottom view showing the rear end of the swing sorter The perspective view which shows the principal part of a rocking drive mechanism

  An example of a combine according to the present invention will be described. First, the overall structure of the combine will be briefly described. Next, a threshing device and a sorting device included in the combine will be described.

[Overall structure of combine]
1-3 show the left side surface, right side surface, and plane of the combine 100 of this embodiment, respectively. In the figure, the front-rear direction, the left-right direction, and the up-down direction of the combine 100 are indicated by arrows. The combine 100 includes a traveling device 1, a reaping device 2, a threshing device 3, a sorting device 4, a storage device 5, and a power device 6.

  The traveling device 1 is provided below the body frame 10. The traveling device 1 includes a transmission 11 and a crawler device 12 provided in a pair of left and right. The transmission 11 transmits the power of the power device 6 mounted on the body frame 10 to the crawler device 12. The crawler device 12 causes the combine 100 to travel in the front-rear direction, and turns the combine 100 in the left-right direction.

  The reaping device 2 is provided in front of the traveling device 1. The reaping device 2 includes a reel 21, a cutter (cutting blade) 22, an auger (transverse feed screw) 23, and a conveyer 24. The reel 21 guides the cereal straw in the field to the cutter 22 by rotating. The cutter 22 cuts the cereal bowl guided by the reel 21. The auger 23 collects the cereals cut by the cutter 22 at a predetermined position (the cereal supply port of the conveyor 24). The conveyor 24 conveys the cereals collected by the auger 23 to the front rotor 33 (see FIG. 4) of the threshing device 3.

  The threshing device 3 is provided behind the reaping device 2. The threshing device 3 includes a handling drum 31 and a receiving net 32 provided below the handling drum 31. The handling drum 31 is accommodated in the handling chamber 30 (see FIG. 4). The handling drum 31 conveys backward while threshing the cereal by rotating. The receiving net 32 supports the culm conveyed by the handling cylinder 31 and drops the threshing processed product onto the sorting device 4. Below the handling drum 31, a first conveyor 143 and a second conveyor 144 (see FIG. 4), which are screw conveyors for transferring grains, are provided. All of these carry the threshed grain in the horizontal direction.

  The sorting device 4 is provided below the threshing device 3. The sorting device 4 has a swing sorting device 41 that swings and sorts the threshing processed material leaked from the receiving net 32 by swinging in the front-rear direction. The grain selected by the rocking sorter 41 is conveyed by the first conveyor 143 and the cereal conveyor 151 and is input to the glen tank 51 through the input port 153. In addition, the sorting device 4 includes a blower 42 that sends wind toward the swing sorting device 41. The blower 42 blows away foreign matters such as sawdust contained in the threshing product. Contaminants such as sawdust are discharged to the outside from a discharge port 45 provided behind the sorting device 4.

  The storage device 5 is provided on the right side of the threshing device 3 and the sorting device 4. The threshing device 3 and the sorting device 4 and the storage device 5 are arranged in parallel on the left and right above the body frame 10. The storage device 5 includes a Glen tank 51 for storing grains. The Glen tank 51 stores the grains that have been conveyed from the sorting device 4 through the first conveyor 143 and the cereal conveyor 151. When discharging the grain in the Glen tank 51, the discharge auger 52 is used. The discharge auger 52 is configured to be rotatable in the vertical and horizontal directions, and can discharge the grains to an arbitrary place.

  The power device 6 is provided below the operation unit 13 and in front of the storage device 5. The power unit 6 includes an engine 61. The engine 61 of the present embodiment is a diesel engine, and converts thermal energy obtained by burning fuel into kinetic energy. More specifically, the engine 61 converts thermal energy obtained by burning fuel into motive power that drives each part such as the traveling device 1. The power unit 6 may be an electric motor that generates power by electricity. The power unit 6 may include both an engine 61 and an electric motor.

  The operation unit 13 is provided in front of the glen tank 51 at the right front portion of the fuselage frame 10. The driver 13 is provided with a driver's seat 14 on which an operator is seated, and a steering handle 15 disposed in front of the driver's seat 14, and various operating tools such as a shift lever, a clutch lever, and switches around them. Is arranged.

[Threshing device]
As shown in FIG. 4, the threshing apparatus 3 includes a handling chamber 30, a handling drum 31, a receiving net 32, and a front rotor 33. The handling chamber 30 is defined by a receiving net 32, a machine casing 300, an upper cover 301, and the like. The machine casing 300 includes an upper cover 301 disposed above the handling cylinder 31, a front wall member 302 disposed in front of the handling cylinder 31, and a rear wall member 303 disposed behind the handling cylinder 31. It is attached. The cereals that have been transported by the transport conveyor 24 are fed into the handling chamber 30 by the front rotor 33. The front rotor 33 not only conveys the cereal but also has a function of performing preliminary threshing (pre-threshing).

  The handling drum 31 includes a handling drum shaft 311 extending along the front-rear direction, a scraping screw 312, and a tooth bar (teeth handling member) 313. The handling cylinder 31 rotates about the handling cylinder 311. The handling shaft 311 is rotatably supported by the front wall member 302 and the rear wall member 303. Rotational power from the engine 61 is transmitted to the handle shaft 311. The handling cylinder shaft 311 is a structure formed in a straight line, and supports the scraping screw 312 and the plurality of tooth bars 313.

  The raking screw 312 is disposed in the front portion of the handling drum 31. The raking screw 312 is a structure in which a spiral impeller (raking blade) 312b is detachably formed. The scraping screw 312 scrapes the cereal that has been fed by the front rotor 33. In other words, the scraping screw 312 rotates to take in the cereals that have been fed by the front rotor 33 and feed them back. The raking screw 312 is not limited to the structure in which the spiral impeller 312b is formed, and may have a structure in which a plurality of blades are formed.

  A plurality of tooth bars 313 are arranged around the handling cylinder shaft 311 behind the raking screw 312. The tooth bar 313 is a structure in which a plurality of teeth 313t are arranged in parallel with each other at a predetermined interval. The tooth bar 313 threshs the cereal meal sent out by the stirring screw 312. In other words, the tooth bar 313 swivels and swallows the cereal that the scraping screw 312 sends out, and hits it to drop the threshing. The tooth bar 313 is not limited to a structure having a plurality of teeth 313t, but may have a structure having a spiral blade. In the present embodiment, a plurality of tooth bars 313 and a plurality of plate members 314 provided across the tooth bars 313 form a cylindrical shape as a whole with the internal space of the handling drum 31 and the outer space of the handling drum 31 separated from each other. However, instead of this, a cylindrical rotary body may be provided with a plurality of teeth 313t.

  The receiving net 32 is provided along the lower outer peripheral surface of the handling drum 31 and is formed in a substantially U shape when viewed from the front-rear direction. In the present embodiment, the receiving net 32 is arranged so as to cover the lower part of the rotating body constituted by the plurality of tooth bars 313. The receiving net 32 supports the cereals that are swallowed by the tooth bar 313. The receiving network 32 is mainly configured by a network body 321. The net 321 is a structure formed by stretching wires in parallel at a predetermined interval. The receiving net 32 causes the threshing processed material that has been threshed by the handling cylinder 31 to leak through the gaps in the net body 321. Grains that have not leaked from the receiving net 32 are discharged as waste from the rear end of the receiving net 32.

[Sorting device]
As shown in FIG. 4, the sorting device 4 includes a swing sorting device 41 and a blower device 42. The swing sorting device 41 sorts the grains by sieving the processed threshing product. The blower 42 sorts the grains by blowing away foreign matters such as sawdust contained in the threshing product.

  As shown in FIG. 5, the swing sorting device 41 includes a feed pan 411, a chaff sheave 412, a stroller 413, a sieve wire 414, and a swing frame 415. The feed pan 411, the chaff sheave 412, and the stroller 413 are attached to the swing frame 415. A chaff sheave 412 is disposed at the lower rear portion of the feed pan 411, and a stroller 413 is disposed behind the chaff sheave 412. The sieving line 414 is disposed behind the feed pan 411 and above the chaff sheave 412. The swing frame 415 includes a front portion 415 f disposed in front of the feed pan 411, a pair of side portions 415 s and 415 s disposed on the left and right sides of the chaff sheave 412, and a rear portion disposed behind the stroller 413. 415r, each of which is provided in a panel shape rising up and down.

  An eccentric cam type swing drive mechanism 47 that swings back and forth in conjunction with rotation of a swing drive shaft 471 extending in the left-right direction is provided below the rear portion of the swing sorting device 41. The swing sorting device 41 is configured to swing back and forth by a swing drive mechanism 47. Rotational power from the power unit 6 is transmitted to the swing drive shaft 471 via a power transmission mechanism (not shown). The swing sorting device 41 is disposed between the left and right threshing side plates 37, 38 not shown in FIG. 5 (see FIG. 7). At the upper edges of the pair of side portions 415s, 415s of the swing frame 415, a rubber sheet is provided via a bracket 417 so that the processed threshing product does not fall out from the gap between the swing sorting device 41 and the threshing side plates 37, 38. 418 is attached.

  The feed pan 411 is a structure that is widely flat. The feed pan 411 receives the threshing processed material that has fallen from the receiving net 32. The feed pan 411 swings back and forth to move the processed threshing product on the feed pan 411 backward while leveling. At this time, the processed threshing is spread evenly in the left-right direction by the fins 411f attached obliquely.

  The chaff sheave 412 has a plurality of sheave plates 412p arranged in parallel with each other at a predetermined interval. The plurality of sheave plates 412p are arranged side by side in the front-rear direction while extending along the left-right direction. The angle of the sheave plate 412p can be adjusted according to the amount of the threshing product. The chaff sheave 412 swings back and forth, sifts the threshing processed product sent from the feed pan 411, lifts the contaminated contaminants, and separates them from the grains. The threshing processed product (only the grain) selected by the chaff sheave 412 passes through the sieve net 416 and is guided by the first cereal plate 431 and falls to the first basket 43, and is sent by the first conveyor 143. Be transported. The threshing processed material remaining on the chaff sheave 412 moves rearward and is sent to the stroller 413.

  The stroller 413 includes a plurality of rack plates 413p arranged in parallel with each other at a predetermined interval. The Strollac 413 swings back and forth, sieves the threshing processed product sent from the chaff sheave 412, supports the relatively large contaminants mixed therein, and separates it from the grains. The threshing processed product selected by the Strollac 413 (which is a grain and a small number of small impurities) is guided by the second flow grain plate 441 and falls to the second basket 44 and sorted by the second conveyor 144. It is reduced and conveyed to the front end side of the device 4 and is subjected to another sorting process. The threshing processed material remaining on the Strollac 413 moves backward and is discharged to the outside.

  The sieve wire 414 has a plurality of wire rods 414s arranged in parallel with each other with a predetermined interval. The sieving line 414 swings in the front-rear direction to screen the threshing processed product sent from the feed pan 411 and hooks a relatively large contaminant mixed in the threshing processed product to separate it from the grain. To do. The threshing processed material selected by the sieving line 414 (which is a grain and a large number of small impurities) falls to the chaff sheave 412 and is further sieved and selected. In this way, the threshing processed product received by the feed pan 411 is oscillated and screened by the sieve line 414 before reaching the chaff sheave 412.

  The blower 42 is disposed below the front portion of the swing sorting device 41 and supplies the sorting air toward the swing sorting device 41. The air blower 42 includes a fan 421 and a fan case 422. In the present embodiment, a fan 421 is disposed below the feed pan 411, and a fan case 422 is disposed so as to cover the fan 421. The fan 421 has a plurality of fan plates 421p attached at a predetermined angle. The fan 421 rotates to send out the wind, thereby blowing away foreign matters placed on the chaff sheave 412 and the stroller 413 and foreign matters dropped from them. The fan case 422 is a structure formed by bending a plate material. The fan case 422 covers the fan 421 and guides the wind sent out by the fan 421 in a predetermined direction.

  As described above, the combine 100 includes the threshing device 3 having the handling barrel 31 and the receiving net 32, and the swing sorting device 41. Further, as shown in FIG. 6, in the combine 100, the rear end of the receiving net 32 is located behind the body of the rear end of the swing sorting device 41. This positional relationship is established even when the swing sorting device 41 swinging in the front-rear direction is located at the rearmost position. Thereby, since the waste discharged from the rear end portion of the receiving net 32 can be prevented from entering the swing sorting device 41, the swing sorting device 41 is not clogged and the sorting efficiency is not deteriorated. The rear end of the swing sorting device 41 is determined with reference to the rear end of the internal space in which the Strollac 413 and the like are accommodated, and corresponds to the inner surface of the rear portion 415r in this embodiment. A broken line BL is an imaginary line extending upward along the rear end of the swing sorting device 41. The rear end of the receiving net 32 is located in front of the fuselage with respect to the rear end of the handling drum 31.

  In this embodiment, as shown in FIGS. 6 and 7, a diffusion plate 46 that receives the waste discharged from the rear end of the receiving net 32 is provided at the rear end of the swing sorting device 41. By receiving the waste with the diffusion plate 46 provided at the rear end portion of the swing sorting device 41, the waste can be diffused and discharged. That is, the waste dropped from the rear end portion of the receiving net 32 is temporarily received by the diffusion plate 46 disposed below the rear end portion of the receiving net 32 and is uniformly diffused by the impact. Thereby, the waste discharged to the field can be made inconspicuous.

  The diffusion plate 46 is formed of a flat plate material extending in the left-right direction, and is attached to the swing sorting device 41 with the out-of-plane direction directed up and down. The front end of the diffusion plate 46 is located in front of the fuselage with respect to the rear end of the receiving net 32. The rear end of the diffusing plate 46 is located behind the fuselage behind the rear end of the receiving net 32. A rubber sag 461 is provided below the diffusion plate 46. The rubber sag 461 is attached to the swing sorting device 41 in a posture that hangs downward toward the rear. The front end of the rubber sag 461 is located in front of the fuselage with respect to the rear end of the diffusion plate 46. The rear end of the rubber droop 461 is located behind the fuselage with respect to the rear end of the diffusion plate 46.

  The swing sorting device 41 is detachably attached to the threshing frame 40. The threshing frame 40 extends in the vertical direction and is connected to the upper side of the body frame 10. The swing sorting device 41 is attached to the threshing frame 40 via left and right threshing side plates 37 and 38 fixed to the threshing frame 40. The swing sorting device 41 can be removed from the threshing frame 40 by pulling it backward when the connection to the threshing frame 40 is released as described later after removing the rubber sag 461. A grip portion 462 that can be gripped by an operator when the swing sorting device 41 is detached from the threshing frame 40 is provided at the rear end of the swing sorting device 41. For this reason, the operation of pulling out the swing sorting device 41 becomes easy, and the workability when removing the swing sorting device 41 is improved.

  The gripping part 462 is configured so that an operator can directly grip it by hand when pulling out the swing sorting device 41. As shown in FIG. 8, the gripping portion 462 is formed of a round pipe (an example of a bar) that is bent so as to protrude rearward and extend in the left-right direction, but is not limited thereto. Moreover, although the holding | gripping part 462 is being fixed with respect to the rocking | swiveling sorter 41 by welding, you may be fixed with fastening members, such as a volt | bolt. In the present embodiment, the gripping portion 462 is provided below the diffusion plate 46, thereby preventing the waste from coming into contact with the gripping portion 462. The grip portion 462 is disposed so as to be hidden by the diffusion plate 46 in plan view.

  As shown in FIGS. 8 and 9, the swing drive mechanism 47 includes a swing drive shaft 471 configured as a crankshaft having an eccentric shaft 471e, a pair of swing shafts 472 and 472 serving as driven shafts, and a swing shaft. A pair of swing arms 473 and 473 pivotally supported between the drive shaft 471 and the swing shaft 472 and a pair of bases 474 and 474 fixed to the bottom surface of the rear end portion of the swing sorting device 41 are provided. . Both ends of the swing drive shaft 471 are rotatably supported with respect to the threshing side plates 37 and 38, respectively. The eccentric shaft 471e of the swing drive shaft 471 is rotatably supported on one side of the swing arm 473 via a bearing 471b. The swing shaft 472 is inserted through the through hole of the pedestal 474. The base 474 protrudes downward from the bottom surface of the rear end portion of the swing sorting device 41.

  One end of the swing shaft 472 (the end on the inner side in the body width direction) is rotatably supported on the other side of the swing arm 473 via a bearing 472b. The other side of the swing arm 473 is connected to the pedestal 474 by tightening a bolt 475 as a fastening member, whereby the position of the swing sorting device 41 with respect to the threshing frame 40 is determined. A roller 476 is rotatably attached to the other end portion (end portion on the outer side in the body width direction) of the swing shaft 472. The roller 476 is fitted to a guide body 477 fixed to the inner surfaces of the threshing side plates 37 and 38. The guide body 477 has an inclined surface that rises rearward, and the roller 476 is guided and rolls along the inclined surface. When the swing drive shaft 471 rotates, the swing arm 473, the swing shaft 472, and the base 474 swing integrally, and accordingly, the swing sorting device 41 swings in the front-rear direction. This swing is reciprocating along the inclined surface of the guide body 477.

  When the bolt 475 is loosened and the connection between the swing arm 473 and the pedestal 474 is released, the swing arm 473 rotates downward about the eccentric shaft 471e of the swing drive shaft 471, as shown by a broken line in FIG. Thus, the swing arm 473 is in a suspended state. By performing this on each of the left and right sides, the connection of the swing sorting device 41 to the threshing frame 40 is released, and the swing sorting device 41 can be removed from the threshing frame 40 by pulling it backward from that state. At that time, by gripping the grip portion 462, an operation of pulling out the swing sorting device 41 is facilitated.

  In the present embodiment, an example of a normal combine is shown, but the present invention is not limited to this, and the present invention may be a self-removing combine.

  The present invention is not limited to the embodiments described above, and various improvements and modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 4 Sorting apparatus 31 Handling cylinder 32 Receiving net 40 Threshing frame 41 Oscillation sorting apparatus 46 Diffusion plate 47 Oscillation drive mechanism 100 Combine 462 Gripping part

Claims (4)

A threshing device having a handling cylinder and a receiving net provided below the handling cylinder;
An oscillating sorting device for oscillating and sorting the threshing product leaked from the receiving net by oscillating in the front-rear direction,
The combine in which the rear end of the receiving net is located behind the rear end of the swing sorting device.   The combine according to claim 1, wherein a diffusion plate is provided at a rear end portion of the swing sorting device to receive the waste discharged from the rear end portion of the receiving net. The swing sorting device is detachably attached to the threshing frame,
The combine according to claim 1 or 2, wherein a grip portion that can be gripped by an operator when the swing sorting device is removed from the threshing frame is provided at a rear end portion of the swing sorting device. A diffusion plate is provided at the rear end of the swing sorting device to receive the waste discharged from the rear end of the receiving net.
The swing sorting device is detachably attached to the threshing frame,
The combine according to claim 1, wherein a grip portion that can be gripped by an operator when the swing sorting device is removed from the threshing frame is provided below the diffusion plate.

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