JP2020018206A - Combine - Google Patents

Abstract

To provide a combine that prevents grain culms from being entangled inside a feeder house and can perform reaping and threshing work efficiently.SOLUTION: A combine includes a first rotary body (12) arranged at the front part in a frame body (10) of a feeder house (3D), which can move vertically relative to the frame body (10); a second rotary body (14) arranged at the rear part in the frame body (10);a chain (15) wound on the first rotary body (12) and the second rotary body (14), which has a plurality of grain culm conveying members; and a rotary body lifting mechanism (70) for moving the first rotary body (12) vertically relative to the frame body (10). When a rotation speed of an auger device (3C) is lower than an auger rotation speed set beforehand, the rotary body lifting mechanism (70) is caused to be actuated to lift the first rotary body (12).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 includes an auger device (3C) for scraping grain culms, and a feeder house (3D) for transporting grain culms scraped by the auger device (3C) to a threshing device (4). In a combine having a pre-cutting device (3), a first rotating body (12) which is disposed at a front portion within a frame (10) of the feed house (3D) and is vertically movable with respect to the frame (10). ), A second rotating body (14) disposed at a rear part in the frame (10), and a plurality of grain stems wound around the first rotating body (12) and the second rotating body (14). A chain (15) having a conveying member; and a rotating body elevating mechanism (70) for vertically moving the first rotating body (12) with respect to the frame (10), and rotating the auger device (3C). If the speed falls below the preset auger rotation speed, It is combined, characterized in that increasing the first rotating body actuates the rotating body elevating mechanism (70) to (12).

  The invention according to claim 2 is a device for driving at least the auger device (3C) and the feeder house (3D) when the rotation speed of the first rotating body (12) is lower than a preset rotating body rotation speed. 2. The combine according to claim 1, wherein the combine is stopped.

  According to a third aspect of the present invention, the auger rotation speed is set as a ratio to a reference speed calculated from a rotation speed of the engine (E) and a transmission ratio of a transmission transmitting to the auger device (3C). A combine according to claim 1 or 2.

  According to the first aspect of the present invention, when the rotation speed of the auger device (3C) falls below a preset auger rotation speed, the rotating body lifting mechanism (70) is operated to activate the first rotating body (12). ), When a large amount of grain stalks are introduced into the pre-cutting device and the driving load of the auger device (3C) increases, the first rotating body (12) is raised and the feeder house (3D) is raised. Clogging can be prevented beforehand.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, at least when the rotation speed of the first rotating body (12) falls below a predetermined rotating body rotation speed, the auger is used. Since the driving of the device (3C) and the feeder house (3D) is stopped, if the clogging occurs even if the first rotating body (12) is raised to enlarge the transport space, the feeder house (3D) or the like is not used. By stopping the driving, it is possible to suppress damage to the transporting member and the like due to clogging of the grain culm and a decrease in grain quality.

  According to the third aspect of the present invention, in addition to the effect of the second aspect, the auger rotation speed is determined by the rotation speed of the engine (E) and the transmission gear ratio transmitted to the auger device (3C). Since it is set by the ratio with respect to the reference speed calculated from the above, it is possible to prevent the first rotating body (12) from moving up and down more than necessary, and to facilitate the conveyance.

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) is a left side view of a tine mounted on a rake reel of the rake device, and (b) is a left side view of the tine when deformed. (A) of the rotating body of an auger apparatus is a front view, (b) is a left view.

  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 behind the rotating body 12 can be eliminated, the entanglement of the grain stalk behind the rotating body 12 is prevented, and a grain stalk is 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.

  Next, the rotating body lifting mechanism 70 will be described. The rotating body lifting mechanism 70 forcibly raises the rotating body 12 relative to the frame 10. Specifically, the rotating body elevating mechanism 70 is installed above the upper wall 10C of the frame 10 and pulls up the rods 29A and 29B via the connecting member 35, thereby rotating the rotating body 12 against the springs 33A and 33B. Is moved upward.

  As described above, the right and left rods 29 </ b> A and 29 </ b> B can be moved up and down by one rotating body lifting mechanism 70 by pushing up the connecting member 35 to raise the rotating body 12.

  Further, the installation position of the rotating body elevating mechanism 70 is configured to be changeable left and right. Therefore, when the biasing forces of the springs 33A and 33B are different, it is possible to forcibly raise and lower the rotating body 12 right and left or to raise and lower one of the right and left sides.

  The rotating body lifting mechanism 70 operates to raise the rotating body 12 when the rotation speed sensor of the auger device 3C detects that the rotation speed is lower than a predetermined auger rotation speed.

  When the rotating speed sensor of the rotating body 12 detects that the rotating speed of the rotating body 12 is lower than a predetermined rotating speed, in a state where the rotating body 12 is forcibly raised by the rotating body lifting mechanism 70, the harvesting is performed. The drive of the pre-processing device 3 is configured to stop.

  Thereby, it is possible to prevent each part of the machine body and the grain from being damaged due to the clogging of the feeder house 3D.

<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.

  At each top of the scraping reel 50, 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 is provided. 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 the left and right walls 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.

Reference Signs List 3 cutting pretreatment device 3C auger device 3D feeder house 4 threshing device 10 frame 12 rotating body (first rotating body)
14 rotating body (second rotating body)
15 Chain 70 Rotating body elevating mechanism E Engine

Claims (3)

An auger device (3C) for scraping grain culms and a pre-cutting device (3) equipped with a feeder house (3D) for transporting grain culms scraped by the auger device (3C) to a threshing device (4). In a combine that has
A first rotating body (12) that is disposed at a front portion within the frame (10) of the feeder house (3D) and that can move up and down with respect to the frame (10); and a rear portion within the frame (10). A chain (15) wound around the first rotator (12) and the second rotator (14) and having a plurality of grain culm conveying members; A rotating body elevating mechanism (70) for moving one rotating body (12) up and down with respect to the frame (10);
When the rotation speed of the auger device (3C) falls below a preset auger rotation speed, the rotating body lifting mechanism (70) is operated to raise the first rotating body (12). Combine to do.   The drive of at least the auger device (3C) and the feeder house (3D) is stopped when the rotation speed of the first rotating body (12) is lower than a predetermined rotating body rotation speed. Combine.   The said auger rotation speed is set with the rotation speed of an engine (E), and the ratio with respect to the reference speed calculated from the gear ratio in the transmission which transmits to said auger apparatus (3C), The Claims 1 or 2 characterized by the above-mentioned. Combine.

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