JP2020014486A - Combine-harvester - Google Patents

Abstract

To provide a combine-harvester capable of highly efficiently performing reaping/threshing work by preventing grain culms from entwining in the inside of a feeder house.SOLUTION: Both sides of a spindle (11) rotatably supporting a first rotor (12) are fixed to front parts of support arms (20A and 20B) disposed inside lateral walls (10A and 10B) of a frame body (10), the support arms (20A and 20B) are connected via connecting pins (22A and 22B) to intermediate parts of revolving arms (21A and 21B) disposed outside the lateral walls (10A and 10B), both-end portions of the connecting pins (22A and 22B) and the brackets (30A and 30B) provided on the upper side of the frame body (10) are connected by rods (29A and 29B), energization means (33A and 33B) are externally fitted around the rods (29A and 29B), and an opening part having a radius larger than the radius of the connecting pins (22A and 22B) is formed at a portion of the lateral walls (10A and 10B), through which the connecting pins (22A and 22B) are inserted.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combine provided with a feeder house for transporting harvested grain culm to a threshing apparatus.

  In a conventional feeder house, a technique is known in which a rotating body disposed in front of the feeder house is vertically swung in accordance with the amount of grain culm to be conveyed. (Patent Document 1)

JP 2012-210164 A

  However, in the technique disclosed in Patent Document 1, a support shaft extending in the left-right direction for swinging the rotator up and down is provided behind the rotator inside the feeder house. Cutting and threshing operations could be interrupted frequently to remove the entangled grain stems.

  Therefore, an object of the present invention is to provide a combine that can prevent a stalk of a grain from being entangled inside a feeder house and can efficiently perform cutting and threshing work.

  The present invention that has solved the above problems is as follows.

The invention according to claim 1 is a combine provided with a feeder house (3D) that transports a grain stalk harvested by a scraping device (3A) to a threshing device (4),
A first rotating body (12) is provided at a front portion inside the frame (10) of the feed house (3D), and a second rotating body (14) is provided at a rear portion inside the frame (10); A pair of left and right chains (15) is wound around the first rotating body (12) and the second rotating body (14) to form a conveyor (18).
Both sides of a support shaft (11) extending in the left-right direction that supports the first rotating body (12) so as to be rotatable can be moved back and forth inside the side walls (10A, 10B) of the frame body (10). The support arm (20A, 20B) is fixed to a front portion of the support arm (20A, 20B) extending in the horizontal direction, and the support arm (20A, 20B) is connected to the side wall (10A) via a connecting pin (22A, 22B) extending in the left-right direction. , 10B) connected to an intermediate portion of a rotating arm (21A, 21B) extending in the front-rear direction and extending outward from a side wall (10A, 10B) of the connecting pin (22A, 22B). The parts and brackets (30A, 30B) provided on the upper part of the frame (10) are connected by rods (29A, 29B) extending in the vertical direction, and the side walls (10A, 10B) of the connection pins (22A, 22B) are connected. Out of 10B) The fixing pins (26A, 26B) projecting outward from the portion extending to the middle and the intermediate portions of the side walls (10A, 10B) are connected to each other by position adjusting means (25A, 25B). 29B), the biasing means (33A, 33B) is externally fitted, and the diameter of the connecting pin (22A, 22B) in the side wall (10A, 10B) is larger than the diameter of the connecting pin (22A, 22B). Characterized by having an opening having a shape.

  In the invention according to claim 2, the support arm (20A, 20B) is provided close to the inside of the side wall (10A, 10B), and the rotary arm (21A, 21B) is close to the outside of the side wall (10A, 10B). The combine according to claim 1, wherein the combine is provided.

  According to a third aspect of the present invention, at least two connection pins (22A, 22B) are provided at predetermined intervals in the front-rear direction, and the support arm (20A, 20B) is connected to the rotary arm (21A, 21B). The combine according to claim 1 or 2, wherein the combine is connected to an intermediate part and a rear part of the combine.

  In the invention according to claim 4, the portions of the rods (29A, 29B) extending above the brackets (30A, 30B) are connected by a connecting member (35) extending in the left-right direction. The combine according to any one of the above.

  The invention according to claim 5 is the combine according to any one of claims 1 to 4, wherein a spring coefficient of the urging means (33A) is different from a spring coefficient of the urging means (33B). .

  According to the first aspect of the present invention, the stalks conveyed rearward inside the frame body 10 are prevented from being entangled behind the first rotating body 12 and stay there, so that the harvesting and threshing work can be performed. It can be performed efficiently.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the rigidity of the support arms 20A, 20B and the rotation arms 21A, 21B is increased, and the support arms 20A, 20B and the rotation arms 21A, 21A, Deformation of 21B is suppressed, and entanglement of grain stems with support arms 20A, 20B and rotation arms 21A, 21B can be prevented.

  According to the third aspect of the invention, in addition to the effects of the first or second aspect, the rigidity of the support arms 20A and 20B and the rotation arms 21A and 21B is further increased, and the rotation of the support arms 20A and 20B is improved. The deformation of the arms 21A and 21B is further suppressed, and the entanglement of the grain stalk with the support arms 20A and 20B and the rotating arms 21A and 21B can be further prevented.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the vertical rotation of the first rotating body 12 is suppressed, and the grain culm is efficiently produced. It can be transported backward.

  According to the invention described in claim 5, in addition to the effects of the invention described in any one of claims 1 to 4, different amounts of grain culms are transported to the left and right portions of the feed house 3D. Even in this case, the vertical inclination of the first rotating body 12 can be further suppressed.

It is the left view which carried out the cross section of the combine in the vertical direction. It is a front view of an interval adjustment device. It is a top view of an interval adjustment device. It is a left view of an interval adjustment device. It is a left view of the space | interval adjustment apparatus which omitted the left wall of the feeder house. It is a front view of a raking reel of a raking device. (A) of the tine mounted on the rake reel of the rake device is a left side view, and (b) is deformed. (A) of the rotating body of an auger apparatus is a front view, (b) is a left view. It is a left view at the time.

  As shown in FIG. 1, the general-purpose combine is provided with a traveling device 2 including a pair of right and left crawlers that travels on a soil surface below a body frame 1, and a harvester that harvests culms in a field in front of the body frame 1. A pre-processing device 3 is provided, a threshing device 4 for threshing and sorting the harvested grain stalks is provided on the left rear side of the pre-cutting device 3, and a pilot is boarded on the right rear side of the pre-cutting device 3. A part 5 is provided.

  An engine E is provided at the lower part of the control unit 5, and a Glen tank 6 for storing the threshed / sorted kernels is provided at the rear side of the control unit 5, and at the rear side of the Glen tank 6, A discharge cylinder 7 for discharging the grains to the outside is provided. The discharge tube 7 is formed of a vertical discharge tube communicating with a lower portion of the Glen tank 6 and extending in the vertical direction, and a horizontal discharge tube communicating with an upper portion of the vertical discharge tube and extending in the front-rear direction.

  The pre-cutting treatment device 3 includes a raking device 3A that rakes and transports the grain culm in the field while standing up, a cutting blade device 3B that cuts the root of the grain culm transported rearward, and a transport device that is transported rearward. An auger device 3C for collecting the collected cereals to the left and a feeder house 3D for conveying the collected cereals to the threshing device 4.

<Feeder House>
The feeder house 3D is rotatably supported by a laterally extending support shaft 11 provided at a front portion of the frame body 10 inside a cylindrical frame body 10 having a vertical cross section formed in a substantially rectangular shape. Rotating body (the "first rotating body" in the claims) 12 and a rotating body (the "second rotating body" in the claims) fixed to a rotating shaft 13 provided in the rear part of the frame 10 and extending in the left-right direction. )), A conveyor 18 composed of a pair of left and right sprockets provided on the rotating body 12 and a pair of left and right chains 15 wound on a pair of left and right sprockets provided on the rotating body 14.

  The output rotation of the engine E is transmitted to the rotating shaft 13, and the pair of left and right chains 15 is provided with slats 16 for transporting the grain stalks rearward at predetermined intervals in the front-rear direction.

  As shown in FIGS. 2 to 5, the left portion of the support shaft 11 is provided adjacent to the right side of a left wall (“side wall” in the claims) 10 </ b> A of the frame 10, that is, the inner periphery of the frame 10. The right part of the support shaft 11 is fixed to the front part of the support arm 20A made of flat steel extending in the front-rear direction provided on the part, and the left part of the right wall (“side wall” in the claims) 10B of the frame 10. Is fixed to the front portion of a support arm 20B made of flat steel extending in the front-rear direction and provided on the inner peripheral portion of the frame body 10, that is, provided adjacent to the support arm 20B.

  The left portion of the rotating shaft 13 is rotatably supported by the left wall 10A of the frame 10, and the right portion of the rotating shaft 13 is rotatably supported by the right wall 10B of the frame 10.

  The support arm 20A is provided adjacent to the left side of the left wall 10A of the frame body 10, that is, the rear part of the turning arm 21A made of angle steel extending in the front-rear direction provided on the outer peripheral part of the frame body 10. Are connected via connecting pins 22A made of round steel extending in the left-right direction. The left wall 10A of the frame 10 has an opening through which the connecting pin 22A is inserted. The diameter of the opening is formed to be larger than the diameter of the connecting pin 22A.

  Similarly, the support arm 20 </ b> B is provided adjacent to the right side of the right wall 10 </ b> B of the frame body 10, that is, a rotating arm made of angle steel extending in the front-rear direction provided on the outer peripheral portion of the frame body 10. It is connected to the rear of 21B via a connecting pin 22B made of round steel extending in the left-right direction. The right wall 10B of the frame 10 has an opening through which the connecting pin 22B is inserted. The diameter of the opening is formed to be larger than the diameter of the connecting pin 22B.

  Thereby, the member arrange | positioned at the back of the rotating body 12 can be eliminated, the entanglement of the grain stalk behind the rotating body 12 can be prevented, and a grain stalk can be efficiently conveyed to the threshing apparatus 4. it can. Further, when a predetermined or more grain culm is conveyed from the auger device 3C, the rotator 12 moves upward and the culm staying below the rotator 12 can be reduced.

  The support arm 20A and the rotating arm 21A are connected by three connecting pins 22A provided at predetermined intervals in the front-rear direction. Further, the connection pin 22A disposed on the foremost side connects a rotation arm 24A, a rotation arm 21A, and a support arm 20A, which will be described later, in order from the left.

  Similarly, the support arm 20B and the rotating arm 21B are connected by three connecting pins 22B provided at predetermined intervals in the front-rear direction. In addition, the connection pin 22B disposed on the foremost side connects a rotation arm 24B, a rotation arm 21B, and a support arm 20B, which will be described later, in order from the right side.

  Thus, the support arm 20A and the rotation arm 21A, and the support arm 20B and the rotation arm 21B are firmly connected, so that the deformation of the support arms 20A and 20B and the rotation arms 21A and 21B can be prevented.

  A rotating arm 24A made of channel steel extending vertically is fixed to the upper surface of the rotating arm 21A. Further, a front portion of a position adjusting means 25A extending in the front-rear direction is connected to a rear portion of the rotating arm 24A. The rear part of the position adjusting means 25A is rotatably supported by a fixing pin 26A provided on the left wall 10A of the frame 10 and extending in the left-right direction. A portion is formed, and two nuts 27A are mounted on the screw portion.

  Similarly, on the upper surface of the rotating arm 21B, a rotating arm 24B made of channel steel extending vertically is fixed. A front portion of a position adjusting means 25B extending in the front-rear direction is connected to a rear portion of the rotating arm 24B. A rear portion of the position adjusting means 25B is rotatably supported by a fixing pin 26B provided on the right wall 10B of the frame body 10 and extending in the left-right direction. A portion is formed, and two nuts 27B are mounted on the screw portion.

  Thereby, the inclination of the rotating body 12 in the front-rear direction can be suppressed by operating the position adjusting means 25A, 25B.

  A support shaft extending in the left-right direction is provided on an upper portion of the rotation arm 24A, and a lower portion of a rod 29A made of round steel extending in the vertical direction is rotatably supported on the support shaft. The upper portion of the rod 29A passes through an opening formed in a bracket 30A provided on the left portion of the upper wall 10C of the frame 10.

  The rod 29A is provided with a plate 32A formed in a circular shape and a spring ("biasing means" in the claims) 33A having a predetermined spring coefficient mounted above the plate 32A. Further, a screw portion is formed on the lower side of the rod 29A, and two nuts 34A are mounted on the screw portion.

  Similarly, a support shaft extending in the left-right direction is provided on an upper portion of the rotation arm 24B, and a lower portion of a rod 29B made of a round steel extending in the vertical direction is rotatably supported on the support shaft. I have. The upper portion of the rod 29B passes through an opening formed in a bracket 30B provided on the right side of the upper wall 10C of the frame body 10.

  On the rod 29B, a plate 32B formed in a circular shape and a spring ("biasing means" in the claims) 33B having a predetermined spring coefficient are mounted above the plate 32B. Further, a screw portion is formed on the lower side of the rod 29B, and two nuts 34B are mounted on the screw portion.

  Thereby, the compressed length can be adjusted from the natural length of the spring 33A disposed on the left side of the frame 10 and the spring 33B disposed on the right side of the frame 10, respectively. Tilt can be suppressed.

  In the present embodiment, the spring coefficient of the spring 33A arranged on the right side of the frame 10 is smaller than that of the spring 33A arranged on the left side of the frame 10.

  This makes it possible to easily move the rotating body 12 from which many grain stems are conveyed from the auger device 3C upward, thereby reducing the grain stems remaining on the lower side of the rotating body 12.

  A portion of the rotating arm 24A extending above the bracket 30A and a portion of the rotating arm 24B extending above the bracket 30B are connected by a connecting member 35 made of channel steel extending in the left-right direction. I have.

  Thereby, the vertical inclination of the rotating body 12 can be further suppressed, and the grain stem can be efficiently transported by the threshing device 4.

  A connecting member (not shown) made of channel steel extends in the left-right direction between the rear part of the support arm 20A to which the left part of the support shaft 11 is fixed and the rear part of the support arm 20B to which the right part of the support shaft 11 is fixed. Can also be connected.

  This makes it possible to further suppress the inclination of the rotating body 12 in the vertical direction as compared with the case where the rotating arm 24A and the rotating arm 24B are connected only by the connecting member 35, and to efficiently transport the grain culm by the threshing device 4. Can be.

  As shown in FIG. 1, a guide plate 38 made of flat steel is provided at a front portion of an upper wall 10 </ b> C of the frame body 10 and is formed to be lowered forward. As a result, the grain stem entangled with the chain 15 and carried can be efficiently dropped below the rotating body 12.

  A sensor (not shown) for measuring the amount of upward movement about the fixed pin 26A at the front of the rotating arm 21A, and upward movement about the fixed pin 26B at the front of the rotating arm 21B. Sensors (not shown) for measuring the displacement amount are provided, and when the displacement amount measured by these sensors exceeds a set value, an alarm provided on the control unit 5 is sounded to notify the operator of an abnormality. It is preferable to inform. Accordingly, it is possible to prevent the chain 15 from being applied with an excessive tension and to prevent the chain 15 from being broken.

  A sensor (not shown) such as a strain gauge for measuring an external force applied to the cylindrical portion formed in the cylindrical shape of the rotating body 12 is provided, and when the external force measured by these sensors exceeds a set value, the control unit It is preferable to sound an alarm provided at 5 to notify the worker of the abnormality. Accordingly, it is possible to prevent an excessive external force from being applied to the cylindrical portion of the rotating body 12 and to prevent the cylindrical portion of the rotating body 12 from being deformed.

<Scraping device>
Next, the scraping reel 50 of the scraping device 3A will be described. As shown in FIG. 6, a support arm 52 </ b> A having a base fixed to the rotating shaft 51 is provided on the left part of the scraping reel 50, and a base is fixed to the rotating shaft 51 on the right part of the scraping reel 50. Provided support arm 52B.

  Each of the tops of the scraping reel 50 is provided with a tine support portion 53 made of a round steel extending in the left-right direction and provided on the left support arm 52A and the right support arm 52B. A tine 54 made of resin is mounted on the tine support portion 53 at a predetermined interval in the left-right direction.

  In a front view, the tine 54 attached to the left portion of the tine support portion 53 that moves in front of the feeder house 3D in the tine support portion 53 has a lower right side such that the lower portion of the tine 54 is located on the right side of the upper portion of the tine 54. It is mounted in a posture extending toward. Thereby, it is possible to prevent the grain stem transported from the scraping device 3A to the auger device 3C from becoming entangled with the scraping auger 60 of the auger device 3C.

  Next, the tines 54 will be described. As shown in FIG. 7A, an opening 55 through which a bolt or the like to be attached to the tine support portion 53 is inserted and an engagement groove 56 that engages with the tine support portion 53 are formed in the upper portion of the tine 54. I have. A notch 57 having a narrow rear portion and a wide front portion is formed below the engagement groove 56. Thereby, as shown in FIG. 7B, when a large external force is applied to the tine 54 from the cereal culm in the field, the tine 54 bends rearward around the front side of the notch 57, and When the tine 54 is bent backward more than a predetermined amount, the rear portion of the notch 57 collides and restricts the backward bending, thereby preventing the tine 54 from being damaged.

  The rotational speed of the output rotation of the engine E is transmitted to the rotating shaft 51 while being accelerated and decelerated by a transmission gear (not shown). The boss portions of these transmission gears are formed to have the same diameter in order to easily perform the operation of switching between acceleration and deceleration.

<Auger device>
Next, the scraping auger 60 of the auger device 3C will be described. As shown in FIG. 8A, the scraping auger 60 is fixed to a rotating shaft 62 extending in the left-right direction provided on a left wall and a right wall of the auger frame 61.

  On the right side of the outer periphery of the scraping auger 60, the grain culm transported from the scraping device 3A is moved to the left side of the outer periphery of the scraping auger 60 located in front of the communication port of the feeder house 3D. A spiral 63 is provided, and on the left side of the outer periphery of the scraping auger 60, a squeezing finger 64 that can move in and out at predetermined intervals in the left and right direction for transporting the grain stalk that has moved to the left to the feeder house 3D. Is provided.

  As shown in FIG. 8B, a cutting blade 65 for cutting the grain culm is provided in the vicinity of a portion of the bottom wall of the auger frame 61 where the scraping finger 64 passes. In addition, the bottom wall of the auger frame 61 is formed in a gentle arc shape having a downwardly convex portion. This makes it possible to cut the long stem of the grain stalk and efficiently transport the grain stalk to the feeder house 3D.

  The output rotation of the engine E is transmitted to the pre-cutting device 3, the threshing device 4, and the Glen tank 6 via a cutting clutch, a threshing clutch, and a discharge clutch (not shown). These mowing clutches and the like are composed of a driving pulley, a belt, and a passive pulley, and the driving pulley is provided with brake means between an outer ring portion and an inner ring portion. Accordingly, it is possible to prevent an excessive tension from being applied to the belt wound around the driving pulley and the passive pulley, thereby preventing the belt from breaking.

3A raking device 3D feeder house 4 threshing device 10 frame 10A left wall (side wall)
10B Right wall (side wall)
10C Upper wall 11 Support shaft 12 Rotating body (first rotating body)
14 rotating body (second rotating body)
15 Chain 18 Conveyor 20A Support arm 20B Support arm 21A Rotating arm 21B Rotating arm 22A Connecting pin 22B Connecting pin 25A Position adjusting means 25B Position adjusting means 26A Fixed pin 26B Fixed pin 29A Rod 29B Rod 30A Bracket 30B Bracket 33A Spring (with Force means)
33B spring (biasing means)
35 Connecting member

Claims (5)

In a combine provided with a feeder house (3D) for transporting the grain stalks harvested by the scraping device (3A) to the threshing device (4),
A first rotating body (12) is provided at a front portion inside the frame (10) of the feed house (3D), and a second rotating body (14) is provided at a rear portion inside the frame (10); A pair of left and right chains (15) is wound around the first rotating body (12) and the second rotating body (14) to form a conveyor (18).
Both sides of a support shaft (11) extending in the left-right direction that supports the first rotating body (12) so as to be rotatable can be moved back and forth inside the side walls (10A, 10B) of the frame body (10). Fixed to the front of the support arm (20A, 20B) extending in the direction,
The support arm (20A, 20B) is connected to the rotation arm (21A) extending in the front-rear direction and disposed outside the side wall (10A, 10B) via a connecting pin (22A, 22B) extending in the left-right direction. , 21B),
A rod (20A) extending from the side wall (10A, 10B) of the connecting pin (22A, 22B) and a bracket (30A, 30B) provided on the upper part of the frame (10) is vertically extended. 29A, 29B)
A fixing pin (26A, 26B) projecting outward from a portion of the connection pin (22A, 22B) extending outward from the side wall (10A, 10B) and an intermediate portion of the side wall (10A, 10B); Connected by position adjustment means (25A, 25B)
The urging means (33A, 33B) is externally fitted to the rod (29A, 29B),
In the part where the connecting pin (22A, 22B) in the side wall (10A, 10B) is inserted,
A combine having an opening having a diameter larger than a diameter of the connection pin (22A, 22B). Providing said support arms (20A, 20B) close to the inside of the side walls (10A, 10B);
The combine according to claim 1, wherein the rotary arm (21A, 21B) is provided close to the outside of the side wall (10A, 10B).   At least two or more connecting pins (22A, 22B) are provided at predetermined intervals in the front-rear direction, and the support arms (20A, 20B) are connected to an intermediate part and a rear part of the rotary arms (21A, 21B). The combine according to claim 1.   4. The rod (29A, 29B) according to any one of claims 1 to 3, wherein a portion extending above the bracket (30A, 30B) is connected by a connecting member (35) extending in the left-right direction. Combine.   The combine according to any one of claims 1 to 4, wherein a spring coefficient of the urging means (33A) is different from a spring coefficient of the urging means (33B).

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