JP2013226097A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester, capable of easily discharging the waste straws or the like staying in a reaping device to the outside.SOLUTION: The problem is solved by disposing the rear edge parts of side covers (11a, 11b) covering the right and left outer parts of the repeating device (4) to be biased in front of frames (17a, 17b) that connect an upper part of a raising device (11) and a transmission case (15a) disposed in the rear of a reaping blade device (12) to each other in a side view.

Description

  The present invention relates to a combine.

  In order to perform the cutting operation safely and smoothly, Patent Document 1 discloses that a side cover is provided on the side of the cutting device, covers are arranged on both sides of the cutting blade device, and the lower edge of the cover is placed on the ground surface. A combine having a substantially parallel shape and having a discharge hole for discharging sawdust and the like at the top of the cover is disclosed.

JP 2010-154759 A

  However, the combine in the invention described in Patent Document 1 stays in the reaping device because the rear edge of the side cover arranged on both sides of the reaping device faces the longitudinal transmission cylinder that transmits the engine rotation to the pulling device. The cutting operation cannot be easily discharged to the outside, and the cutting operation needs to be interrupted in order to remove the cutting waste clogged in the cutting device.

  Therefore, the main problem of the present invention is to eliminate such problems.

The present invention that has solved the above problems is as follows.
The invention according to claim 1 is a cutting device (4) disposed on the front side of the machine body, a weed body (10) for weeding the cereals left and right, a pulling device (11) for raising the cereals, In a combine equipped with a cutting blade device (12) for harvesting cereal grains caused by a pulling device (11),
Transmission of rear edge portions of the side covers (11a, 11b) covering the left and right outer portions of the mowing device (4) disposed above the pulling device (11) and behind the mowing blade device (12) in a side view. The case (15a) is arranged so as to be deviated more forward than the frame (17a, 17b) to which the case (15a) is connected, and between the rear edge of the side cover (11a, 11b) and the frame (17a, 17b), the cutting device (4 ) In which an opening for discharging the sawdust inside is formed.

  According to a second aspect of the present invention, the lower edge of the rear edge of the side cover (11a, 11b) is provided on the cutting blade transmission box (26) arranged at the left and right ends of the transmission case (15a) in a side view. The combine according to claim 1, which is arranged forward.

  In the invention according to claim 3, the lower edge of the side cover (11a, 11b) is disposed above the weed frame (16) supporting the weed body (10) in a side view, and in the side view, Of the left and right side covers (11a, 11b), the lower edge of the first side cover (11a) provided on the uncut area of the reaping device (4) is connected to the second side cover (11b) provided on the already cut area. The combine according to claim 1 or 2, which is disposed at a position higher than the lower edge.

  The invention according to claim 4 includes a cutting blade cover (27, 27) that covers the outer end portion of the cutting blade device (12) from above, and the rear edge of the cutting blade cover (27, 27) is flat. The combine according to any one of claims 1 to 3, wherein the rear part is inclined so as to approach the outer end on the cutting blade device (12) side as viewed.

  According to a fifth aspect of the present invention, there is provided a swinging arm (23, 25) for interlocking the cutting blade device (12) from a crankshaft (26a) projecting upward from the cutting blade transmission box (26). It is a combine of any one of Claims 1-4 arrange | positioned above the blade apparatus (12).

  According to the first aspect of the present invention, the rear edge portion of the side cover (11a, 11b) is arranged so as to be biased forward of the frame (17a, 17b) in a side view, and therefore the reaping device (4). The swarf etc. staying inside can be discharged to the outside from the opening formed between the lower side of the rear edge of the side cover (11a, 11b) and the vertical transmission cylinder (17), and the cutting operation can be continuously performed. Can do.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the lower end portion of the rear edge of the side cover (11a, 11b) is placed in front of the cutting blade transmission box (26) in a side view. Since it arrange | positions, the entanglement to the cutting blade transmission box (26) of the sawdust etc. which stayed in the cutting device (4) can be prevented, and sawdust etc. can be discharged | emitted efficiently outside.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the lower edge of the first side cover (11a) provided on the uncut area is provided on the already cut area. Since it arrange | positions in the position higher than the lower edge of a 2nd side cover (11b), the shavings etc. which remain | survived in the cutting device (4) are made into the lower edge of a 1st side cover (11a), and a weeding frame (16). ) Can be discharged to the outside through a gap formed between the lower edge of the second side cover (11b) and a foreign material from the gap formed between the weed frame (16). It is possible to avoid work interruption due to damage such as (12).

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the rear edge of the cutting blade cover (27, 27) Since the part is inclined so as to approach the outer end of the cutting blade device (12) side, it is possible to reduce the entanglement of the uncut grain culm with the cutting blade cover (27, 27) when the combine moves backward. .

  According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, the swing arm (23) interlocking the cutting blade device (12) from the crankshaft (26a). , 25) is arranged on the upper side of the cutting blade device (12), thus preventing mud from adhering to the shaft (26a), the swinging arms (23, 25), etc., and the soil surface and the shaft (26a). The collision of the swing arms (23, 25) can be prevented.

It is a right view of a combine. It is a top view of a combine. It is a left view of a reaping device. It is a right view of a reaping device. It is a top view of the cutting blade apparatus of a cutting device. It is a left view of the cutting blade apparatus of a cutting device. It is a principal part left view of a cutting device. It is a principal part front view of a reaping device. It is a top view of a tip conveying device. It is a principal part transmission top view of a Glen tank. It is a principal part transmission right view of a Glen tank. It is a principal part transmission front view of a Glen tank.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, although the direction is shown and demonstrated for convenience for easy understanding, the configuration is not limited by these.

As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 composed of a pair of left and right crawlers traveling on the soil surface below the body frame 1, and threshing and sorting is performed on the upper left side of the body frame 1. A threshing device 3 is provided, and in front of the threshing device 3, a reaping device 4 for harvesting cereal grains in the field is provided. The grain threshed and selected by the threshing device 3 is stored in a Glen tank 5 provided on the right side of the threshing device 3, and the stored grain is discharged to the outside by the discharge cylinder 7.
A driver's seat 6 having an operation unit on which an operator gets on is provided on the upper right side of the body frame 1, and an engine E is disposed in an engine room below the driver's seat 6.

  The reaping device 4 includes a weeding body 10 that splits the raised cereal left and right, a pulling device 11 that raises the cereal after weeding, a scraping device 13 that scrapes the raised culm, and this A cutting blade device 12 that cuts the culm that is scratched by the scraping device 13, a transport device 14 that scrapes and conveys the culm after harvesting, and the like, and a transmission shaft that can move up and down with respect to the body frame 1 is provided. It is configured to move up and down in the vertical direction via the transmission cylinder 15.

  The weeding body 10 is provided at the tip of a weeding frame 16 extending forward from a transmission case 15 a provided at the tip of the transmission cylinder 15. Further, the pulling upper transmission cylinder 11c that drives the pulling device 11 has a left end connected to an upper end of a vertical transmission cylinder (frame) 17a that houses a transmission shaft provided in the vicinity of the left end of the transmission case 15a. . Further, a right frame (frame) 17b extending upward from the vicinity of the right end portion of the transmission case 15a is connected to a portion near the right end portion of the pulling upper transmission cylinder 11c.

(Side cover)
A side cover (first side cover) 11a is provided on the left side of the leftmost pulling device 11 in order to prevent contact between the operator's hand and the drive unit and improve safety, and the rightmost pulling device 11 has A side cover (second side cover) 11b is provided on the right side.
The side cover 11a is detachably attached to the left end of the leftmost pulling device 11 and the lower rear edge is attached to the base of the weeding frame 16 by fastening means such as bolts, respectively. . The side cover 11b is detachably attached to the right end of the rightmost pulling device 11 at the front edge and to the base of the weeding frame 16 at the lower rear edge.

  As shown in FIG. 3, the front edge of the side cover 11 a is pulled up from the upper part of the pulling device 11 to discharge the wastes and the like staying in the cutting device 4 to the outside and efficiently cut the grain straw. The trailing edge gently slopes downward and downward from the upper part of the pulling device 11, and then slopes downward and substantially downward from the upper and lower central part of the vertical transmission cylinder 17. Extending forward and facing the front of the cutting blade transmission box 26. Further, the lower edge of the side cover 11a is inclined rearwardly downward from the front edge toward the substantially front and rear center part, and then inclined upward and extends to the rear edge and extends above the weed frame 16. .

Similarly, as shown in FIG. 4, the front edge of the side cover 11 b extends from the upper part of the pulling device 11 toward the lower front along the front surface of the pulling device 11, and the trailing edge of the pulling device 11. After gently sloping downward from the upper part, it slopes downwardly from the substantially vertical central part of the rear edge, extends in front of the vertical transmission cylinder 17, and faces the front of the cutting blade transmission box 26. Further, the lower edge of the side cover 11b is inclined downward and rearward from the front edge toward the substantially front and rear central part, and then inclined upward and extends to the rear edge and extends above the weed frame 16. .
In the present embodiment, the side cover 11a and the side cover 11b are formed in substantially the same shape. In order to discharge well, a space formed between the lower edge of the side cover 11a and the weeding frame 16 in a side view by steeply inclining the lower edge of the side cover 11a is defined as a lower edge of the side cover 11b and the weeding. It is preferable to form it larger than the space formed between the frames 16.

(Headlight)
In order to reduce the number of parts and reduce the manufacturing cost, the left and right headlamps 18a and 18b are fastened together with the left and right lifting devices 11 and 11 together with the left side covers 11a and 11b as shown in FIG. Yes. In order to efficiently perform the cutting operation, the right headlight 18b, which is fastened together with the side cover 11b, is arranged behind the left headlight 18a in a side view to illuminate the rightmost herbaceous body 11. On the other hand, it is preferable that the left headlamp 18a fastened together with the side cover 11a is arranged behind the right headlamp 18b to illuminate the front in the traveling direction of the combine.

(Mowing blade device)
The cutting blade device 12 is a device that cuts the stock of the cereal that has been scraped by the scraping device 13, and is arranged so as to be inclined upward from the front to the base in a side view. As shown in FIGS. 5 and 6, the pair of left and right cutting blade devices 12 are formed by a fixed lower blade 20, a cutting blade plate 22 that supports the lower blade 20, a lower blade 20, and a cutting blade plate 22. The upper blade 21 slides back and forth in the left-right direction through the gap.

  On the rear side of the cutting blade plate 22, a bracket 24 having a vertical axis 24a is disposed. The front end portion of the swing arm 23 whose central portion is rotatably supported by the vertical axis 24a is fitted into a concave portion 21a formed at the outer end portion of the base portion of the upper blade 21, and the rear end portion is the engine E's. The rotation is transmitted to the tip of the swing arm 25.

The rear end of the swing arm 25 is connected to a crankshaft 26a of a cutting blade transmission box 26 that transmits the rotation of the engine E provided at both ends of the transmission case 15a. The tip of the swing arm 25 is reciprocated in the left-right direction about the crank longitudinal axis 26 a of the cutting blade transmission box 26, and the tip of the swing arm 23 is moved in the left-right direction about the vertical axis 24 a of the bracket 24. Swing back and forth. Further, the tip of the swing arm 23 swings back and forth in the left-right direction, and the upper blade 51 moves back and forth between the lower blade 20 and the cutting blade plate 22 in the left-right direction.
In order to prevent mud from adhering to the crankshaft 26a and to prevent the cutting blade transmission box 26 from colliding with the soil surface, the crankshaft 26a extends upward with respect to the transmission case 15a extending to the left and right. Exist. Further, the cutting blade device 12 is not limited to this embodiment, and in order to simplify the transmission mechanism, the upper blade located on the left side and the upper blade located on the right side are integrally formed and formed integrally. Further, the upper blade can be slid back and forth in the left and right directions.

In order to prevent contact between the operator's toes and the drive unit and improve safety, a cutting blade cover 27 is disposed on each of the left and right outer sides of the pair of left and right cutting blade devices 12.
In order to prevent entanglement of the uncut grain culm with the cutting blade cover 27 when the combine moves backward, the rear portion of the cutting blade cover 27 is inclined from the outside to the inside in plan view. That is, after the front part of the cutting blade cover 27 is inclined from the inside to the outside, the intermediate part is horizontally extended backward, and then the rear part is inclined from the outside to the inside. Yes. Further, the rear portion of the cutting blade cover 27 is formed to be inclined from the lower side to the upper side in a side view. That is, after the front part of the cutting blade cover 27 is inclined from the upper side to the lower side, the intermediate part is horizontally extended rearward, and then the rear part is inclined from the lower side to the upper side. doing.

(Pulling device)
In order to prevent the cereals that are conveyed from coming off, it is preferable to cut away the conveyance path portion at the front lower portion of the upper cover of the pulling device 11 and bend the end portion backward. Moreover, in order to reduce the vibration and noise which are generated during the raising and transporting operation of the cereal, as shown in FIGS. 7 and 8, the raising frame 30 which holds the raising device 13 is arranged at the left and right intermediate part. The rigidity of the pulling device 11 is increased by supporting the rear surface of the device 11 on the upper rear surface of the pulling device 11 via a stay 31 made of steel. The pulling device 11 is internally provided with a chain 32 having lugs 32a that can fall down at regular intervals.

(Transport device)
In order to reduce the vibrations and noises that are generated during the pulling and conveying of the cereal, as shown in FIG. 9, the non-operating side of the upper and lower covers 40a and 40b of the conveying device 14 arranged at the upper rear of the scraping device A notch 41 is provided in Note that a chain 42 having lugs 42 a at regular intervals is internally provided in the scraping device 13.

(Glentank)
In order to reduce the number of parts and save space, as shown in FIGS. 10 and 11, a pulley 50 supported by the engine E and a drive provided in front of the Glen tank 5 are provided on the front side of the Glen tank 5. A belt 55 wound around a pulley 51 supported by the shaft 51a is disposed.
In order to reduce the number of parts, a base portion of a tension arm 52 having a tension roll 52a that presses the belt 55 at the tip end portion is rotatably attached to a bracket 53 that supports the drive shaft 51a.
Further, an oil bath bevel gear box 54 is disposed at the end of the bracket 53 opposite to the pulley 51, and a removable lid 54a is disposed on the upper surface of the bevel gear box 54 for injecting oil. Yes.

In order to easily open and close the Glen tank 5, as shown in FIG. 12, when the lever 56 disposed on the front surface of the Glen tank 5 is moved to the open position in the clockwise direction, the non-circular shape that supports the base of the lever 56 is supported. The cam 56a formed in the shape rotates clockwise around the shaft 56b, and is not in contact with the pin 57 disposed on the lower side of the cam 56a. The pin 57 is moved upward by a spring attached to the lower side of the pin 57 to be unlocked, and the front portion of the Glen tank 5 can be moved outward as a rear fulcrum.
Further, as the cam 56a rotates in the clockwise direction, the tension arm 58 disposed on the lower side of the cam 56a moves upward, and the tension roll 58a provided at the tip of the tension arm 58 also moves upward. As a result, the tension of the belt 61 wound around the pulley 59 supported by the bevel gear box 54 and the pulley 60 supported by the auger helical shaft 60a disposed at the bottom of the Glen tank 5 is weakened, and the belt 61 is moved to the pulley 59. And the front part of the Glen tank 5 can be moved outward.

On the other hand, after the front part of the Glen tank 5 is moved inward and stored in the machine, when the lever 56 is moved counterclockwise to the storage position, the cam 56a rotates counterclockwise around the shaft 56b, 56 a presses the pin 57. The pressed pin 57 moves downward to be locked, and prevents movement outside the front portion of the Glen tank 5.
As the cam 56a rotates counterclockwise, the cam 56a presses the tension arm 58, the tension arm 58 moves downward, and the tension roll 58a also moves downward. Accordingly, the tension of the belt 61 wound around the pulley 59 and the pulley 60 is increased, and the rotation of the engine E can be transmitted to the auger spiral shaft 60a via the belt 61 and the like.

  The present invention can be applied to agricultural work vehicles.

4 Cutting device 10 Weeding body 11 Pulling device 11a Side cover (first side cover)
11b Side cover (second side cover)
12 Cutting blade device 15a Transmission case 16 Weeding frame 17a Vertical transmission cylinder (frame)
17b Right frame (frame)
23 swing arm 25 swing arm 26 cutting blade transmission box 26a crankshaft 27 cutting blade cover E engine

Claims (5)

The mowing device (4) arranged on the front side of the machine body is caused by the weed body (10) for weeding the cereals to the left and right, the pulling device (11) for raising the culms, and the pulling device (11). In the combine provided with the cutting blade device (12) for cutting the cereal cereal,
Transmission of rear edge portions of the side covers (11a, 11b) covering the left and right outer portions of the mowing device (4) disposed above the pulling device (11) and behind the mowing blade device (12) in a side view. The case (15a) is arranged so as to be deviated more forward than the frame (17a, 17b) to which the case (15a) is connected, and between the rear edge of the side cover (11a, 11b) and the frame (17a, 17b), the cutting device (4 The combine which formed the opening part which discharges | emits the sawdust in a) outside.   The lower end portion of the rear edge of the side cover (11a, 11b) is disposed in front of a cutting blade transmission box (26) disposed at left and right end portions of the transmission case (15a) in a side view. Combine. The lower edge of the side cover (11a, 11b) is disposed above the weed frame (16) that supports the weed body (10) in a side view,
In the side view, the lower edge of the first side cover (11a) provided on the uncut area of the harvesting device (4) of the left and right side covers (11a, 11b) is provided on the already cut area side. The combine of Claim 1 or 2 arrange | positioned in the position higher than the lower edge of 2 side cover (11b).   A cutting blade cover (27, 27) that covers the outer edge of the cutting blade device (12) from above is provided, and the rear edge of the cutting blade cover (27, 27) is cut toward the rear side in plan view. The combine according to any one of claims 1 to 3, wherein the combine is inclined so as to approach the outer end on the blade device (12) side.   Oscillating arms (23, 25) interlocking with the cutting blade device (12) from a crankshaft (26a) projecting upward from the cutting blade transmission box (26) are disposed above the cutting blade device (12). The combine of any one of Claims 1-4 arrange | positioned.

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