JP2020018184A - Combine - Google Patents

Abstract

To allow desirable threshing work to be performed with little troublesomeness even when a type of crop plants, which are a reaping object, is changed.SOLUTION: A combine is provided with a thresher 4 for threshing reaped grain culms in a threshing chamber 23. The threshing chamber 23 is provided with a threshing cylinder 31 that rotates around a longitudinal axis X, and a circular arc receiving net 32 provided along the periphery of the threshing cylinder 31. The receiving net 32 is provided with one or a plurality of receiving net components 43 divided along a circumferential direction. The combine is provided with a position adjusting mechanism that, in a state that a position of one side end part 47 along a circumferential direction of the threshing cylinder 31 in the receiving net component 43 is kept, can adjust and change an interval between the other side end 46 along a circumferential direction in the receiving net component 43 and a rotation locus of the outer end part of the threshing cylinder 31.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a combine provided with a threshing device for threshing a harvested culm in a handling room.

  In the handling room of the threshing device, a handling drum that is driven and rotated is provided, and an arc-shaped receiving net is provided along the outer peripheral portion of the handling drum. Conventionally, the receiving net has an upper end, a lower end, and an intermediate portion in the rotation direction of the handling drum, each of which is supported by a support member provided in the threshing apparatus main body, and fixed in the handling room. It was provided in a state (for example, see Patent Document 1).

JP, 2017-51167, A

  When a harvesting operation is performed in a combine harvester in a field, the type of crop is not always constant. And when the kind of crop differs, the amount of the crop carried into the threshing apparatus with the cutting operation may vary greatly. As described above, when the amount of the crop is large, when the handling process is performed in cooperation with the handling cylinder and the receiving net, the crop tends to stay between the handling cylinder and the receiving net, and the efficient threshing process is performed. May not be possible. Further, there is a possibility that the driving load on the handling cylinder becomes excessive.

  Therefore, in the above-described conventional configuration, since the receiving net is provided in a fixed position, the types of crops to be harvested are different, and the amount of crops carried into the threshing device is larger than a preset amount. In such a case, it was necessary to replace the receiving net with a different specification in order to perform good threshing work. However, such a replacement operation of the receiving network has been a troublesome and large-scale operation such as removing and reattaching the receiving network, which is a large and heavy device.

  Therefore, it has been desired to be able to perform a good threshing operation with little trouble even when the type of crop to be harvested is changed.

  A characteristic configuration of the combine according to the present invention is provided with a threshing device for threshing a harvested culm in a handling room, and in the handling room, a handling drum rotating around a longitudinal axis and an outer peripheral portion of the handling drum. A receiving net provided in an arc shape in a state, wherein the receiving net is provided with one or a plurality of receiving net components divided along a circumferential direction, and the handling cylinder in the receiving net component is provided. In a state where one end along the circumferential direction is held in position, the interval between the other end along the circumferential direction of the receiving net structure and the rotation locus of the outer end of the handling drum can be changed and adjusted. The point is that a position adjusting mechanism is provided.

  The crop carried into the handling room is transported in the circumferential direction while rotating with the rotating handling cylinder. Then, when reaching the operation processing area by the cooperation of the handling cylinder and the receiving net, the handling processing is performed while being rubbed by the handling cylinder and the receiving net. Is too narrow with respect to the amount of crops, there is a possibility that handling processing cannot be performed efficiently.

  Therefore, in the present invention, the rotation of the other end of the receiving net structure and the outer end of the handle cylinder is performed with the position adjusting mechanism holding one end of the receiving net structure provided on the receiving net. The distance from the trajectory can be changed. For example, if the type of crop to be harvested is changed and the amount of crops to be transported into the handling room increases, the crop can be changed by changing the spacing so as to increase the spacing between the handling cylinder and the receiving net. The possibility of stagnation is reduced, and handling processing can be performed efficiently. In addition, when the amount of the crop is reduced, the crop is effectively rubbed between the handling cylinder and the receiving net by changing the interval so as to be narrow, and the handling process can be performed efficiently.

  The position adjustment mechanism changes the position of the other end of the receiving network structure, and does not require a large-scale operation such as replacing the entire receiving network, and the adjusting operation is performed in a state with little inconvenience. Can be.

  Therefore, even when the type of crop to be harvested is changed, it is possible to perform a good threshing operation with less troublesome state.

  In the present invention, the other end is any one of a better end corresponding to a better side in the rotating direction of the handling cylinder, or a lower end corresponding to a lesser side in the rotating direction of the handling cylinder. It is preferred that

  According to this configuration, when the position of the upper end portion of the receiving net structure is changed, it is possible to avoid the stagnation of the crop near the entrance of the handling processing area by the cooperation of the handling drum and the receiving net. . On the other hand, if the position of the lower end of the receiving net structure is changed, even if the crop tends to stay near the entrance of the handling area where the handling cylinder and the receiving net cooperate, the By changing the position on the lower side in the direction, it becomes easier to transfer the crop to the lower side, and it is possible to avoid stagnation as a whole.

  In the present invention, the position adjusting mechanism may be configured such that an interval immediately after the other end of the interval in the rotational direction is smaller than an interval of the interval immediately before the other end of the other end in the rotational direction. It is preferable to change and adjust the position of the other end so as not to be narrowed inward in the direction.

  According to this configuration, when the interval immediately after the other end of the receiving net structure in the rotation direction is narrower than the interval immediately before in the rotation direction, crops carried by the handling drum may be caught and deposited at the location. There is. Therefore, by adjusting the position so that the interval immediately after the rotation direction is not narrower than the interval immediately before the rotation direction, it is possible to adjust the position change according to the amount of crop while avoiding the disadvantage that the crop is caught and accumulated Becomes

  In the present invention, the receiving net structure has a plurality of split receiving nets divided along a rotation axis of the handling cylinder, and the position adjusting mechanism has a plurality of split receiving nets respectively. A rod-shaped member that supports the other end so as to be integrally movable, and extends from one end of the handling chamber in the rotation axis direction to another end thereof, and a rod-shaped member extending in the rotation axis direction of the rod-shaped member. It is preferable that a position changing member capable of selectively fixing both side ends to a plurality of positions is provided.

  According to this configuration, since the receiving network structure is divided into a plurality of divided receiving networks, the divided receiving network is smaller and lighter than a case where the receiving network structure is integrally formed, and When performing maintenance work such as cleaning and replacement, the labor burden is reduced.

  Even when a plurality of divided nets are provided in this manner, the other end of each of the plurality of divided nets is collectively collected by changing the position of both side ends of the rod-shaped member by the position changing member. It is possible to change the position, and work can be performed efficiently.

It is a whole side view of a combine. It is a side view which shows the support structure of the threshing apparatus. It is a side view of the threshing device in the state where the side wall part was removed. It is a vertical front view of a threshing apparatus. It is a side view of a receiving network. It is a front view which shows the position change state of a receiving network structure. It is a partially cutaway side view of a position change member installation part. It is a front view which shows the position change state of the receiving network structure of another embodiment. It is a front view which shows the position change state of the receiving network structure of another embodiment. It is a front view which shows the position change state of the receiving network structure of another embodiment. It is a front view which shows the position change state of the receiving network structure of another embodiment.

  Hereinafter, a case where an embodiment of a combine according to the present invention is applied to a normal combine will be described with reference to the drawings.

〔overall structure〕
As shown in FIG. 1, a combine is a threshing transport unit 1 that cuts a crop and transports it backward, an operation unit 3 that is covered with a cabin 2, and a threshing process that performs threshing of the crop that has been harvested by the harvest transport unit 1. Device 4, a grain tank 5 for storing grains obtained by threshing by the threshing device 4, a driving unit 7 having an engine 6 as a power source, a pair of left and right non-steerable and rotationally driven The vehicle includes a front wheel 8 and a pair of left and right rear wheels 9 that can be steered. On the left side of the grain tank 5, there is provided a screw conveyor type grain discharging device H for transporting the stored grains to the outside of the machine body.

  In this embodiment, when the longitudinal direction of the machine is defined, it is defined along the machine traveling direction in the working state. That is, the direction indicated by the reference numeral (F) in FIG. 1 is the front side of the aircraft, and the direction indicated by the reference numeral (B) in FIG.

  The reaping transport unit 1 is supported at a front part of the machine body by a reaping lifting cylinder 10 as a lifting and lowering actuator so as to be capable of driving up and down around a lateral fulcrum P1. The reaper transport section 1 reapers the crops to be planted, and gathers the reached crops toward the central part in the width direction of the reaping, and the reaping header 11 directs the crops that have been harvested and concentrated to the center toward the threshing device 4 at the rear of the machine. And a feeder 12 for transport.

  The cutting header 11 includes a rotating reel 13 for scraping the tip side of the crop to be cut rearward, a clipper-shaped cutting blade 14 for cutting and cutting the root of the crop, and a center for cutting the crop in the cutting width direction. A horizontal feed auger 15 and the like to gather together are provided.

  Although not shown, the feeder 12 is a transport conveyor in which a plurality of endless rotating chains are wound and stretched over a front and rear wheel body in a cylindrical transport case 16 and a locked transporting body is stretched over the endless rotating chains. And is configured to convey the crop delivered from the mowing header 11 rearward and upward.

  The threshing device 4 is located at a low position in the center of the machine body in the left-right direction. Above the threshing device 4, a grain tank 5 for storing grains after being subjected to threshing by the threshing device 4, and an engine as a power source 6 are provided. Specifically, the grain tank 5 and the engine 6 are provided in a direction in which the grain tank 5 and the engine 6 are arranged in the front-rear direction in a state where the grain tank 5 is located on the front side of the machine body and the engine 6 is located on the rear side of the machine body. The outer sides of both the left and right sides of the threshing device 4 are covered with an exterior cover 17. Although not described in detail, the exterior cover 17 is configured to be able to swing and open laterally outward by manual operation.

  At the lower part of the fuselage, a pair of left and right main frames 20 extending in the longitudinal direction of the fuselage is provided. The left and right main frames 20 support the entire body, and the main frame 20 corresponds to the body frame. The left and right main frames 20 are formed of channel materials having a substantially C-shaped cross section, and are provided long in the front-rear direction from the front part of the body to the rear part of the body. Axles 8a, 9a of left and right front wheels 8 and left and right rear wheels 9 are provided at positions lower than the left and right main frames 20. The left and right front wheels 8 and the left and right rear wheels 9 are provided so as to be located on the outer sides of the right and left main frames 20 in the lateral direction of the fuselage. 9 supported.

[Threshing equipment]
Next, the threshing apparatus 4 will be described.
As shown in FIGS. 2 and 3, the threshing apparatus 4 includes a threshing unit 21 that performs a threshing process, and a sorting unit 22 that performs a sorting process on a processed product after the threshing process is performed by the threshing unit 21. I have. Although not described in detail, the sorting unit 22 oscillates and transports the processed material after the dehulling process to the inner space surrounded by the wall, and controls the size of the grains, the grains with branches, and the like. A sorting unit 24 (see FIG. 3) for sorting into second-pieces, waste straw waste, and the like is provided. As shown in FIG. 1, a shredding device 25 that shreds a thresh-processed product (thaw waste, etc.) after threshing by the threshing device 4 is provided on the rear side of the fuselage of the threshing device 4. ing.

  The threshing unit 21 is configured such that the front side of the fuselage is narrower in the vertical direction, and the rearward side of the fuselage is wider in the vertical direction. The lower end is placed on the main frame 20 extending substantially horizontally along the front-rear direction. Therefore, the upper end portion of the threshing unit 21 has a rear-up inclined posture that is higher at a rear side.

  As shown in FIG. 4, inside the threshing unit 21, a handling chamber 23 in which the processing of handling the harvested grain culm is performed. The handling room 23 is provided with a handling cylinder 31 that rotates around an axis X along the longitudinal direction of the fuselage, and is provided below the handling cylinder 31 in a substantially arc shape in a front view along the outer peripheral portion of the handling cylinder 31. The formed receiving network 32 is provided. In the handling room 23, the harvested culm is thrown in from the front side of the machine body, and the handling process (threshing process) is performed by the handling cylinder 31 and the receiving net 32. The handling cylinder 31 is arranged in a rearwardly inclined position such that the rotation axis X is gradually increased toward the rear of the machine body. The receiving net 32 is also arranged in a rearwardly inclined posture, similarly to the handling cylinder 31. The handling cylinder 31 is provided with a plurality of rod-like members 18 extending along the rotation axis at intervals in the circumferential direction, and a plurality of rod-like gripping teeth are provided on each rod-like member 18 so as to protrude radially outward. 19

  As shown in FIG. 2, the left side wall portion 27 located on the left side is formed in a substantially triangular shape in side view such that the front side of the body is narrower in the vertical direction and the rear side is wider in the vertical direction. A lower side wall portion 33, an upper side wall portion 34 having substantially the same width in the front-rear direction, and a rear side wall portion 35 located on the rear side of the fuselage and wide in the vertical direction are provided. Although not shown, the right side wall portion 26 has a wall surface that covers the entire wall portion, and is connected to the main frame 20 by a bolt with its lower end placed on the upper surface of the main frame 20.

  The lower side wall portion 33 and the rear side wall portion 35 of the left side wall portion 27 are bolted to the main frame 20 with the lower ends placed on the upper surface of the main frame 20. The upper side wall portion 34 is configured to be divided into a plurality of (four) along the rotation axis direction of the handling cylinder 31, and is configured by four divided walls 37. Each of the dividing walls 37 is detachably supported in the lateral direction.

  As shown in FIG. 4, upper side frames 38, 39 extending along the rotation axis of the handling cylinder 31 are provided above the right side wall 26 and the left side wall 27. The left and right side wall upper end frames 38 and 39 extend long from the front part to the rear end part of the threshing device 4.

(Receiving network)
The receiving net 32 is constituted by a plurality of divided receiving nets 40 divided along the rotation axis of the handling cylinder 31. The divided receiving network 40 is detachably supported in the lateral direction. The receiving net 32 is divided at the same position as the dividing wall 37 of the upper side wall portion 34 on the left side wall portion 27 along the rotation axis of the handling cylinder 31 and is directed in the same direction, that is, toward the left side of the fuselage. It is removable.

  As shown in FIG. 3, the receiving network 32 is provided at a position corresponding to the four divided walls 37, and is provided with four divided receiving networks 40. The receiving net 32 is provided in a substantially arc shape in a front view so as to substantially follow the rotation locus of the outer end of the handling cylinder 31. As shown in FIG. 5, a partition member 41 extending between the left and right side wall upper end frames 38 and 39 is provided between the divided receiving nets 40 adjacent to each other in the front and rear directions.

  Each divided receiving network 40 is constituted by two receiving network members 42 and 43 divided along the circumferential direction of the handling cylinder 31. The right receiving net structure 42 is received and guided by a substantially arc-shaped guide member 44, and is supported in a state where the right end thereof abuts on the right side wall upper end frame 38. The left end portion is bolted to a relay bracket 45 provided at a connection point between the left and right receiving network members 42 and 43. The left side receiving structure 43 has a right end portion bolted to the relay bracket 45 and a left end portion bolted to the left side wall upper end frame 39.

(Position adjustment mechanism)
Of the two receiving network members 42, 43, the receiving network member 42 located on the left side has the upper end 46 corresponding to the upper side in the rotation direction of the handling cylinder 31 and the outer end of the handling cylinder 31. The distance from the rotation locus can be changed and adjusted. Then, with respect to the left receiving net structure 42, the position of the lower end 47 (an example of one end along the circumferential direction) corresponding to the lower side in the rotation direction of the handling cylinder 31 is held, and the handling cylinder 31 is held. The distance between the rotation end of the handle end 31 (an example of the other end along the circumferential direction) corresponding to the hand side and the rotation trajectory of the outer end of the handle cylinder 31 (the outer end of the handle teeth 19) in the rotation direction of the handle. A changeable position adjustment mechanism 50 is provided.

  The position adjusting mechanism 50 supports the upper end of each of the plurality of divided receiving nets 40 so as to be integrally movable, and has a rod-like shape extending from one end to the other end of the handling cylinder 31 in the rotation axis direction. A member 51 and a position changing member 52 that can selectively fix both side ends of the rod-shaped member 51 in the rotation axis direction to a plurality of positions are provided.

Hereinafter, the position adjusting mechanism 50 will be described.
As shown in FIGS. 4 and 5, the lower-side end portion 47 of the left-side receiving network component 43 (located to the right in FIG. 4 as viewed from the front) is fixed to the relay bracket 45 by bolt connection. ing. A support member 53 having a U-shaped cross-section that is open downward is integrally provided at the upper end 46 of the left receiving structure 43. The support member 53 extends over the entire width of the divided receiving net 40 along the rotation direction of the handling cylinder 31. A bar-shaped member 51 is provided which extends long along the rotation direction of the handling cylinder 31 over substantially the entire front-rear width of the threshing device 4 in a state of entering and engaging with the lower recessed portion of the support member 53.

  As described above, the receiving net is divided into four parts along the rotation axis of the handling cylinder 31, and the left receiving net structure 43 is also divided into four divided receiving nets 40 along the rotation axis. Has been split.

  As shown in FIG. 5, the rod-shaped member 51 is formed of a cylindrical rod material, and is located at the front end side of the receiving net 32, that is, at the foremost end side of the four divided receiving nets arranged along the rotation axis direction. It extends long over the front wall part 29 and the rear wall part 28 located at the rear end side of the receiving net, that is, the rearmost end side of the four divided receiving nets arranged along the rotation axis direction.

  As shown in FIGS. 6 and 7, a plate-shaped position changing member 52 is integrally connected to both end portions of the rod-shaped member 51 by welding so that the plate surface is orthogonal to the longitudinal direction of the rod-shaped member 51. A pair of bolt insertion holes is formed in the position changing member 52 so as to be positioned on both upper and lower sides of the rod-shaped member 51. Adjustment holes 56 are formed in the front wall 29 and the rear wall 28 at positions corresponding to the respective bolt insertion holes. A plurality of adjustment holes 56 formed in the front wall portion 29 and the rear wall portion 28 are formed in different positions along the radial direction of the handling cylinder 31.

  By inserting the bolt 57 through the bolt insertion hole and any one of the adjustment holes 56 and fastening with the nut 58, the rod-shaped member 51 can be connected to the front wall 29 and the rear wall 28 in a fixed position. . When the bolt is connected through the adjustment hole 56 closest to the handling cylinder 31 among the plurality of adjustment holes 56, the outside of the handling cylinder 31 immediately before the handling cylinder rotation direction at the upper end 46 of the left receiving net structure 43 on the left side. The distance between the rotation trajectory of the end portion and the member on the outer peripheral side (top plate), and the rotation trajectory of the outer end of the handling cylinder 31 immediately after the handling cylinder rotation direction at the upper end 46 of the left receiving net structure 43. The distance from the receiving network 43 is substantially equal (see the phantom line in FIG. 6).

  Then, in the case of changing to a work mode in which the amount of the crop carried into the handling room 23 is increased, for example, by changing the bolt 57 to the adjustment hole 56 different from the adjustment hole 56 on the side closest to the handling cylinder 31, The left receiving structure 43 swings about the lower end 47 in the direction in which the upper end 46 moves away from the handling cylinder 31, and the rotation trajectory of the outer end of the handling cylinder 31 and the receiving structure 43 can be widened (see the solid line in FIG. 6). At this time, the left net receiving structure 43 is slightly deformed, but the swinging amount of the deformed deformation with respect to the length in the circumferential direction is small, so that the deformation can be allowed. As a result, the position of the upper end 46 is changed and adjusted so that the interval immediately after the rotation of the upper end 46 is not narrower in the radial direction than the interval immediately before the rotation of the upper end 46. Can be.

  As described above, the position adjusting mechanism 50 is constituted by the rod-shaped member 51, the position changing member 52, the plurality of adjusting holes 56 formed in the front wall portion 29 and the rear wall portion 28, the bolt 57 and the nut 58, and the like. The nut 58 is fixed to the position changing member 52 by welding the bolt insertion hole 55 to a position on the side of the handling chamber. The work of adjusting the position of the left receiving structure 43 on the left side with this configuration can be performed even by one worker by separately performing the work on the front wall 29 and the work on the rear wall 28. be able to.

[Another embodiment]
(1) In the above-described embodiment, the two receiving network members 42 and 43 divided along the circumferential direction are provided, and one of the receiving network members 43 located on the upper side in the handling cylinder rotation direction is rotated. Although the configuration in which the interval between the direction upper end 46 and the rotation trajectory of the outer end of the handling cylinder 31 can be changed and adjusted is shown, instead of this configuration, the following (1-1) to (1-) Various configurations as described in 4) may be adopted. In any case, it is preferable that the interval immediately after the rotation direction of the position to be changed is not radially inwardly narrower than the interval immediately before the rotation direction.

  (1-1) As shown in FIG. 8, the receiving network 32 is configured by a receiving network component 43 having a configuration in which the receiving network 32 is continuously connected in the circumferential direction without being divided. The lower end 47 in the rotation direction is fixed in position, and the distance between the upper end 46 in the rotation direction and the rotation trajectory of the outer end of the handling cylinder 31 can be changed and adjusted.

  (1-2) As shown in FIG. 9, the receiving network 32 is configured by a receiving network component 43 having a configuration in which the receiving network 32 is continuously connected in the circumferential direction without being divided. The lower end 47 in the rotational direction is fixed in position, and the intermediate position in the circumferential direction is supported by the relay bracket 45 to fix the position. The upper end in the rotational direction and the outer end of the handling drum 31 The distance between the part and the rotation locus can be changed and adjusted.

  (1-3) As shown in FIG. 10, the lower end 47 of one of the two receiving network members 42, 43 located on the upper side in the handling cylinder rotation direction is bolted to the lower receiving member 47. Instead, the lower end portion 47 is configured to be swingably supported around the axis along the rotation axis with respect to the relay bracket.

  (1-4) As shown in FIG. 11, one of the two net receiving members 42, 43 located on the upper side in the handling cylinder rotation direction has a better end 46 in the rotation direction. Is in a fixed position, and the distance between the lower end 47 in the rotation direction and the rotation locus of the outer end of the handling cylinder 31 can be changed and adjusted.

(2) In the above embodiment, the receiving net structure 43 has the plurality of split receiving nets 40 divided along the rotation axis of the handling cylinder 31, and the position adjusting mechanism 50 includes the plurality of split receiving nets. Although the other side end of each 40 is moved integrally to adjust the position, a plurality of divided receiving networks 40 may be separately adjusted in position, or one of the plurality of divided receiving networks 40 may be adjusted. Various configurations can be adopted, such as a configuration in which the position of only the divided receiving net 40 of the section, in particular, only the divided receiving net 40 on the starting end side in the workpiece transfer direction is adjusted.

(3) In the above-described embodiment, the position adjusting mechanism 50 controls the other end so that the interval immediately after the other end in the rotation direction is not narrower radially inward than the interval immediately before the other end in the rotation direction. Although the position of the side end is changed and adjusted, instead of this configuration, the interval immediately after the rotation direction of the other end is radially inward of the interval immediately before the rotation direction of the other end. It may be configured to change and adjust so as to be narrower.

  The present invention can be applied not only to a normal combine, but also to a self-contained combine.

Reference Signs List 4 threshing device 23 handling room 31 handling cylinder 32 receiving net 43 receiving net structure 46 other end 47 one end 50 position adjusting mechanism 51 rod-shaped member 52 position changing member

Claims (4)

A threshing device for threshing the harvested culm in the handling room,
The handling chamber is provided with a handling cylinder that rotates around the front-rear axis, and a receiving net provided in an arc shape along the outer peripheral portion of the handling cylinder,
The receiving network is provided with one or a plurality of receiving network components divided along a circumferential direction,
Rotation of the other end along the circumferential direction of the receiving net structure and the outer end of the handling cylinder in a state where one end along the circumferential direction of the handling cylinder in the receiving net structure is held in position. A combine equipped with a position adjustment mechanism that can change and adjust the distance from the trajectory.   2. The other-side end is one of a better-side end corresponding to a better side in the rotation direction of the handling cylinder, and a lower-side end corresponding to a lower side in the rotation direction of the handling cylinder. Combine described in. The position adjustment mechanism,
The other side so that the interval immediately after the other end in the rotation direction of the interval is not narrower radially inward than the interval immediately before the rotation direction of the other end in the interval. The combine according to claim 2, wherein the position of the end is changed and adjusted. The receiving net structure has a plurality of split receiving nets divided along a rotation axis of the handling cylinder,
In the position adjustment mechanism,
A rod-shaped member that supports the other end of each of the plurality of divided receiving nets so as to be integrally movable, and extends from one end to the other end in the rotation axis direction of the handling chamber,
The combine according to any one of claims 1 to 3, further comprising a position changing member capable of selectively fixing both side ends of the rod-shaped member in the rotation axis direction to a plurality of positions.

Images