JP3391698B2 - Horizontal moving device for combine harvester - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for bringing out a good carrying state of a vertical carrying device when a reaping section is configured to be movable up and down and laterally slidable. It is connected to the traveling machine body so that it can move up and down around the axis, and the raising device and the reaper are configured to be slidable in the lateral direction with respect to the traveling machine body, and the vertical conveying device is the fulcrum axis of the conveying end part. The present invention relates to a combine harvesting unit lateral movement device that is pivotally supported about its left and right sides so as to be horizontally swingable in synchronization with a lateral slide movement of a raising device.

[0002]

2. Description of the Related Art As a horizontal moving device for the harvesting section of the combine, the one disclosed in Japanese Utility Model Laid-Open No. 5-48632 is known. According to this publication, a mechanism for varying the transport length is provided which can change the transport action front end position back and forth without changing the swinging fulcrum axis center position of the vertical transport device, and the interval between the transport action front end position and the raising device. Is a constant value,
The mechanism for varying the transport length was linked so as to move along with the lateral slide movement of the raising device.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned prior art, in order to enable good transfer of grain culms from the vertical conveying device to the feed chain and also to follow the lateral slide of the cutting unit, The transport device has a structure that swings left and right around the rear fulcrum, and a transport length variable mechanism is provided to prevent the front end position of the transport action from moving back and forth due to the horizontal swing to change the front-rear distance from the raising device. I was prepared.

In the variable transport length mechanism, a supporting member for supporting the front sprocket is provided so as to be slidable in the front-rear direction with respect to a frame for supporting the rear sprocket, and the front end portion of the supporting member is adjusted for handling depth. In order to guide the swinging up and down of the front end of the vertical conveying device, it is configured to be inserted through a curved guide rod provided on the side of the horizontal slide. In other words, when the reaper is laterally slid, the support member slides in and out of the frame, and the length of action of the transport chain is changed.

However, in the conventional structure, since the vertical conveying device is constructed so as to straddle the lateral slide moving side and the non-horizontal slide side, it is disadvantageous in terms of dimensional accuracy and has a slide supporting structure in the front-rear direction. There was room for improvement in terms of easy play and noise. Further, there is a disadvantage in maintenance that the operation of the vertical conveying device alone cannot be confirmed until the supporting member is inserted into the guide rod to form a cutting unit. An object of the present invention is to realize a variable transport length mechanism of a vertical transport device having excellent grain culm delivery performance while making it advantageous in terms of dimensional accuracy and maintenance.

[0006]

[Means for Solving the Problems]

[Structure] In the first characteristic structure of the present invention, the mowing part is connected to the traveling machine body so as to be movable up and down about the horizontal axis, and the raising device and the mowing device can be slid laterally with respect to the traveling machine body. In addition, the vertical transport device is pivotally supported about the fulcrum axis of the transport end so that it can swing horizontally, and the vertical transport device can swing left and right in synchronization with the lateral slide movement of the raising device. In a combine harvester lateral movement device, a vertical transport device is provided by winding an endless rotary band with protrusions around a rear wheel body centering on a fulcrum axis and a front wheel body on the transport start end side. In this vertical conveying device, a front wheel body at the conveying action front end position is reduced so that the change in the distance between the raising device and the conveying action front end position due to the lateral slide movement of the raising device is reduced. Provided with a transport length variable mechanism that changes the position back and forth,
This transport length variable mechanism is used to move the front wheel
The front support body that supports the rear transport body and the traveling body side of the traveling body side so as to drive and move the front wheel body in the perspective direction with respect to the rear wheel body in conjunction with the horizontal swinging movement of the vertical transport device .
A cam is provided on one of the position fixing part and the front support.
And a cam follower on the other side.
This transport length variable mechanism is composed of a drive unit consisting of a mechanism.
Is configured to be capable of swinging left and right together with the vertical transport device.

The second characteristic structure is that the cutting unit is raised about the horizontal axis.
Lifting device and mowing device that can be freely rocked
And can be slid laterally with respect to the traveling body
The vertical transport device around the fulcrum axis at the transport end.
It is pivotally supported so that it can be swung left and right with
The vertical transfer device can be swung left and right in synchronization with the ride movement.
In the combine harvester lateral movement device configured,
A rear wheel body centered on the fulcrum shaft center of the vertical conveyance device.
Endless rotation belt with protrusion extending between the front wheel body on the transport start side
The winding device is wound around the
Of the raising device and the vertical conveying device accompanying the horizontal slide movement of the
Conveyance action of the table is reduced so that the gap between the front end position and
The front wheel body at the front end position
A variable transport length mechanism is installed.
Before supporting the wheel body so that it can move forward and backward with respect to the rear wheel body
Interlocking with the side support and the horizontal swing movement of the vertical transfer device.
The front wheel is driven and moved in the perspective direction relative to the rear wheel.
To move the front support in the front-back direction so that
Consists of a drive unit consisting of a reversibly rotatable electric motor
However, this variable transport length mechanism swings left and right with the vertical transport device.
The point is that it is movable .

[0008]

[Advantage] According to the structure of claim 1, the conveying length varying mechanism is accompanied by the lateral slide movement of the raising device so that the distance between the front end position of the conveying action and the raising device becomes a constant value as much as possible. In the case of linking so as to operate, the vertical transport device itself is provided with a transport length variable mechanism capable of changing the transport operation front end position of the vertical transport device back and forth. It is self-contained without straddling.

Therefore, the vertical conveying device can be operated by itself without assembling other mechanisms such as the raising device portion, which is advantageous for maintenance such as operation confirmation and other Since the components do not straddle the mechanical devices, the dimensional accuracy can be easily obtained, and the vertical transfer device can be configured so that there is no rattling slide structure and there is little rattling noise.

According to the structure of the first aspect, since the front wheel body is slid in and out of the rear wheel body by the cam mechanism, it is only necessary to rotationally move the cam. The transport length variable mechanism in the apparatus can be made relatively compact.

According to the second aspect of the invention, since the drive unit in the variable transport length mechanism is constituted by the reversibly rotatable electric motor, it is possible to realize a simple structure without labor. There is.

[Effect] In the combine harvester according to any one of claims 1 and 2 , (a) even if the cutting section is slid laterally, the interval between the raising device and the vertical transport device is kept as constant as possible, and a good grain culm transport state is achieved. By configuring the transport length variable mechanism capable of maintaining the above in the vertical transport device itself, it is possible to provide a reaping unit lateral movement device that is advantageous in terms of dimensional accuracy and maintenance, and that is smoother and more durable. .

In the reaping unit lateral movement device according to claim 1 ,
The above effect (a) while using a compact transport length variable mechanism
There is an advantage to exert.

In the reaping unit lateral movement device according to claim 2 ,
There is an advantage that the above-mentioned effect (a) is exhibited while the operation is easy without requiring labor, and while the transport length varying mechanism has a simple structure.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 shows the front part of the two-row cutting combine. This combine is a crawler traveling device 1
The cutting unit 2 is connected to the front part of the traveling machine equipped with the so that it can move up and down around the horizontal axis X, and the threshing device 3 is mounted on the traveling machine body, and the boarding operation is performed on one side of the cutting unit 2. The part 4 is arranged and configured.

The reaping section 2 includes a pair of left and right raising devices 5 for raising the planted grain culm which has been laid down in an upright posture, a clipper-type reaping device 6 for cutting the root of the raised grain culm, and a cut grain culm. A pair of left and right scraping packers 7 for scraping and transporting to the rear in the center of the cutting width, and a mowing grain culm in a standing posture, with the stock base side being sandwiched,
In addition, the vertical transfer device 9 and the like that transfers backward and transfers to the threshing feed chain 8 while gradually changing the posture to the sideways posture while locking the tip end side is configured by the hydraulic cylinder 10 and the horizontal axis X. It is configured to be supported by a main harvesting frame 12 which is swingably driven around and is supported by a machine body frame 11.

As shown in FIGS. 3 and 4, a horizontal transmission shaft 13 having a hexagonal cross-section in the same axial center as the horizontal shaft X is provided, and the horizontal transmission shaft 13 is rotated by the left and right brackets 14. It is freely supported by the machine frame 11. Then, the harvesting main frame 12 is attached to the sideways transmission shaft 13.
A slide support mechanism A is configured by externally fitting the up-and-down swing boss portion 12a through a bush 15 so as to be relatively rotatable and relatively slidable along the axial direction of the lateral transmission shaft 13.

Power is transmitted from the prime mover side via an input pulley 16 attached to one shaft end of the lateral transmission shaft 13.
A bevel gear 1 externally fitted to the transmission shaft 13 so as to be freely torque-transmittable and slidable integrally with the vertically movable boss 12a.
7, the power is transmitted to each of the raising devices 5 and the scraping packer 7 through the front-rear transmission shafts 18, and the lateral transmission shafts 1
A transmission system is configured to transmit power to the vertical transfer device 9 via a bevel gear mechanism 20 in a bevel gear case 19 which is fitted to the shaft end of the threshing feed chain 3 so as to be relatively rotatable.

Further, the lateral transmission shaft 13 is further projected from the bevel gear mechanism 20, and the front end portion of the push-pull rod 23 pivotally connected to the crank mechanism 21 provided at the projecting end portion through the ball joint 22 is mowed. The drive system of the reaping device 6 is configured by being linked to the drive bell crank 24 of 6. The bevel gear case 19 is supported so as to be rotatable relative to the shaft center of the transmission shaft 13 for adjusting the handling depth, and contacts the inner side of the supporting bearing 26 with a pair of left and right bolts 25 to regulate the position. It is configured as follows.

The raising device 5 and the mowing device 6 are configured to be slidable relative to each other in the lateral direction with respect to the machine body, and the vertical transport device 9 is provided with a vertical fulcrum axis Y on the transport end side. It is constructed so that it can swing around. More specifically, as shown in FIGS. 4 and 5, a lateral feed mechanism 28 for driving the cutting main frame 12 laterally with respect to the machine body frame 11 is provided near the lateral transmission shaft 13.

That is, a supporting member 30 is extended from a tubular member 29 which is relatively rotatable with respect to the lateral transmission shaft 13 and is fixed in position in the axial direction, and a screw shaft 31 is pivotally supported by the supporting member 30. At the same time, an electric motor 32 with a reduction mechanism attached and fixed to the support member 30 is connected to the screw shaft 31. Then, by fixing the top member 33 that engages with the screw shaft 31 from both upper and lower sides to the cutting main frame 12 and rotate the screw shaft 31 by the electric motor 32, the top member 33 is inserted through the top member 33. Mowing master frame 1
2 is configured to slide laterally.

Further, as shown in FIG. 6, the lifting drive hydraulic cylinder 10 has its base end pivotally connected to the machine body frame 11 so as to be swingable around the horizontal axis and fixed in the horizontal position. , A laterally long receiving support member 34 is attached to the other end side, and a laterally long placing support member 35 is attached to the cylinder pressing action portion of the reaping main frame 12 to form a receiving support member 34. The mounting support member 35 is engaged with the mounting support member 35 so as to be slidable and slidable in the lateral direction and capable of receiving a load. One end of the receiving support member 34 is connected to the supporting member 30 so as to prevent the hydraulic cylinder 10 from dropping downward. The receiving support member 34 is bent by bending the lower side of the mounting support member 35. The engagement is performed to prevent the cutting unit 2 from being lifted up by contacting the field scene.

Further, as shown in FIG. 2, the vertical conveyance device 9 is moved by the guide rod 3 in accordance with the horizontal sliding of the cutting section as described above.
6 is configured to swing around the axis of the output shaft 37 of the bevel gear mechanism 20, and as shown in FIG. 7, an electric motor type depth adjustment mechanism 39 attached to the case 38 of the front-rear transmission shaft 18 is used. The bevel gear case 19 is supported by being lifted through a rod 45, and is rotated relative to the bevel gear case 19, so that the bevel gear case 19 swings up and down around the axis of the lateral transmission shaft 13.

The vertical transport device 9 is composed of a stock holding mechanism 9A and a tip locking transport mechanism 9B, of which the transport front end position of the brush locking transport mechanism 9B can be changed back and forth. With the mechanism B, the change in the distance between the front end position of the conveyance action and the raising device 5 is reduced,
The transport length varying mechanism B is linked so that the transport length varying mechanism B operates in accordance with the lateral slide movement of the raising device 5.

As shown in FIG. 9, the tip end locking and conveying mechanism 9B.
Is a rear sprocket (an example of a rear wheel body) 45 that is rotatable about a fulcrum axis Y, a front sprocket (an example of a front wheel body) 46, and a chain with a locking projection on a tension wheel body 53 ( An example of an endless rotation band with protrusions 47 is wound to support the front sprocket 46 so as to be slidable in the front-rear direction with respect to the rear sprocket 45, and the cam 50 on the position fixing portion 19 on the traveling body side. Further, the transport length varying mechanism B is configured by a drive unit having a cam mechanism 52 in which a cam follower 51 is provided on a front cover frame (an example of a front support) 49 that supports the front sprocket 46. .

The cam 50 is positionally fixed on the side of the traveling machine body such as the bevel gear case 19, and the cam surface 50a is set such that the distance from the fulcrum axis Y becomes farther toward the front right side.
Has been formed. The cam follower 51 is composed of a roller (or bearing) supported at the base end of a pipe member 54 that supports the front sprocket 46 at the tip, and the pipe member 54 is supported by the rear cover frame 48 so as to be slidable back and forth. . Further, the front cover frame 49 is configured to be movable relative to the front and rear of the rear cover frame 48 with the front cover frame 49 positioned on the outer side, and the chain 47 with the locking projection is actuated by the spring 55 acting on the tension wheel body 53. Is urged to the outside.

Further, as shown in FIGS. 2 and 8, a slide member 41 having a front end portion inserted into the guide rod 36 is attached to a substantially cylindrical support body 40 attached to a frame 44 of the stock holding and conveying mechanism 9A. Is fitted inside so as to be slidable in the front-back direction.
With this configuration, when the electric motor 32 is driven, the raising device 5, the mowing device 6, and the mowing main frame 12 (that is, the mowing unit 2) are horizontally slid, and along with this, the vertical conveyance is performed around the fulcrum axis Y. The device 9 is configured so as to follow and swing left and right. Further, the raising and lowering drive of the mowing unit 2 by the hydraulic cylinder 10 can be performed regardless of the lateral movement.

As shown in FIG. 2B, however, in the swivel cutting mode in which the cutting unit 2 is moved to the left end, the roller 51 is located at the position closest to the fulcrum axis Y side on the cam surface 50a, A state in which the sprocket 46 is closest to the rearmost side and has the shortest transporting action length as the tip-end locking transporting mechanism 9B appears (solid line in FIG. 9). Then, as shown in FIG. 2A, in the middle cutting mode in which the reaper 2 is moved to the right,
A state in which the roller 51 is located farthest from the fulcrum axis Y on the cam surface 50a and the front sprocket 46 is located at the frontmost position and has the longest transporting action length as the tip locking transporting mechanism 9B appears. In this case, the change in the winding peripheral length of the chain 47 with the locking projection is absorbed by the expansion and contraction of the tension spring 55 (state of the phantom line in FIG. 9).

Due to the action of the series of transport length varying mechanisms B, even if the vertical transport device 9 swings, the center of rotation of the front sprocket 46, that is, the transport operation front end position of the tip locking transport mechanism 9B and the raising device. The distance between the raising device 5 and the vertical conveying device 9 can be transferred satisfactorily without disturbing the posture, regardless of whether the cutting unit 2 is laterally slid. .

[Other Embodiment] In the present embodiment described above, the cam mechanism 52 is adopted, and the conveyance length variable mechanism B is operated by utilizing the lateral swinging movement of the vertical conveyance device 9. As shown in FIG. 10, a drive type variable transport length mechanism B using an electric motor 56 may be used.

That is, the front sprocket 4 is attached to the screw shaft 57 which is rotationally driven by the geared motor 56 capable of reversible rotation.
A nut member 58 fixed to a telescopic bracket 59 that supports 6 is screwed, and the front sprocket 46 is configured to be slidable forward and backward by driving the geared motor 56 forward and backward. Further, the telescopic bracket 59 and the tension arm 60 are interlockingly connected via the balance swing arm 61 and the spring 62, and the tension force becomes weaker as the front sprocket 46 projects and moves. The tension force is configured to increase with the retreat movement, and changes in the wrapping circumference of the nip transport chain 65 are absorbed.

Actually, the electric motor 3 for lateral slide 3
The rotation direction and the rotation speed of the gear motor 56 and the geared motor 56 are controlled by the function of the control device 63 to move the front sprocket 46 of the stock holding mechanism 9A forward and backward with respect to the raising device 5 regardless of the lateral slide movement of the reaper 2. It is controlled so that the direction position does not change. Incidentally, 64 is a tension bolt for adjusting the tension force.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a plan view showing a sliding state.

FIG. 3 is a plan view showing a transmission system.

FIG. 4 is a cutaway plan view of a slide support mechanism.

FIG. 5 is a cutaway side view of the slide support mechanism.

FIG. 6 is a plan view of a sliding portion of a hydraulic cylinder.

FIG. 7 is a side view of the handling depth adjusting mechanism.

FIG. 8 is a cross-sectional view showing a connection structure between a stock holding mechanism and a guide rod.

FIG. 9 is a plan view of a tip locking transport mechanism.

FIG. 10 is a plan view showing another structure of the tip locking transport mechanism.

[Explanation of symbols]

2 Mowing unit 5 Raising device 6 Mowing device 9 Vertical transport device 19 Position fixing part 36 Guide rod 41 Sliding member 45 Rear wheel body 46 Front wheel body 47 Endless rotation band 48 Rear support body 49 Front support body 50 Cam 51 Cam follower 52 Cam mechanism B Transport length variable mechanism X Horizontal axis Y Support point axis

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01D 34/00-67/00

Claims (2)

(57) [Claims] 1. A reaping unit and a reaping device are configured to be slidably movable laterally with respect to the traveling machine body by connecting a reaping unit to a traveling machine body so as to be vertically movable around a horizontal axis.
The vertical conveyance device is pivotally supported about the fulcrum shaft center of the conveyance terminal end so as to be swingable left and right, and the vertical conveyance device is swingable left and right in synchronization with the lateral slide movement of the raising device. A horizontal moving device for a harvesting part of a combine, wherein the vertical transport device is configured by winding an endless rotary band with a projection over a rear wheel body centering on the fulcrum axis and a front wheel body on a transport start end side. The vertical conveyance device is provided with a front end of the conveyance action front end position so that a change in the distance between the raising device and the conveyance action front end position of the vertical conveyance device due to the lateral slide movement of the raising device is reduced. A transport length variable mechanism for changing the position of the front and rear wheels is provided, and the front and back support for supporting the front wheel body so as to be movable in the front- rear direction with respect to the rear wheel is provided with the vertical transport. The front wheel body with respect to the rear wheel body is linked to the left and right swing movement of the device. To drive movement in the near direction, of the vehicle body side
A cam is provided on one of the position fixing part and the front support.
And a cam follower on the other side.
This transport length variable mechanism is composed of a drive unit consisting of a mechanism.
Is a lateral moving device for a combine harvester, which is configured to be swingable left and right together with a vertical transport device. 2. A reaping unit and a reaping device are configured to be slidably movable laterally with respect to the traveling machine body, the reaping unit being connected to the traveling machine body so as to be vertically movable about a horizontal axis.
The vertical conveyance device is pivotally supported about the fulcrum shaft center of the conveyance terminal end so as to be swingable left and right, and the vertical conveyance device is swingable left and right in synchronization with the lateral slide movement of the raising device. A horizontal moving device for a harvesting part of a combine, wherein the vertical transport device is configured by winding an endless rotary band with a projection over a rear wheel body centering on the fulcrum axis and a front wheel body on a transport start end side. The vertical conveyance device is provided with a front end of the conveyance action front end position so that a change in the distance between the raising device and the conveyance action front end position of the vertical conveyance device due to the lateral slide movement of the raising device is reduced. A transport length variable mechanism for changing the position of the front and rear wheels is provided, and the front and back support for supporting the front wheel body so as to be movable in the front- rear direction with respect to the rear wheel is provided with the vertical transport. The front wheel body with respect to the rear wheel body is linked to the left and right swing movement of the device. Said front support to drive movement in the near direction
Reversible electric motor for moving the robot in the front-back direction
The harvesting section lateral movement device of the combine, which comprises a drive unit consisting of, and is configured such that this conveyance length variable mechanism is configured to be capable of swinging left and right together with the vertical conveyance device.