JP2985315B2 - Combine harvesting displacement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mowing displacement device for moving a mowing device of a combine with respect to a vehicle body 1 in the left, right, front and rear directions.

[0002]

2. Description of the Related Art In a combine operation, a harvesting device is moved forward and backward with respect to a vehicle body.
Or, it is displaced in the left and right directions to facilitate the harvesting work at the ridge or the corner of the field. However, in a mode in which the mowing device is moved with respect to the vehicle body, the upper side of the support connection portion of the mowing device with respect to the vehicle body is difficult to take a complicated configuration because the harvested grain culm is transferred to the rear threshing device. Since the mowing device is heavy, it is difficult to move the mowing device easily.
According to the present invention, in order to solve such a defect, the mowing device is supported by a crank-shaped mowing frame, and the position of the mowing device is changed right and left and back and forth by rotating a crank-shaped portion of the mowing frame. The reaping frame has a simple structure and can be moved lightly by turning.

[0003]

According to the present invention, there is provided a raising lug.
A grain stalk raising device 2 for raising the culm body to a certain posture, a cutting blade device 3 for cutting the root portion of the raised grain stalk, a collecting device 4 for collecting and collecting the cut grain culm, and the like. An upper frame 9 for supporting a cutting frame 6 of a cutting device 5 comprising a cutting machine 6 on a vehicle body 8 on the threshing device 7 side so as to be vertically rotatable;
And a lower frame 10 on the side, and a crank-shaped portion 11 is formed between the upper frame 9 and the lower frame 10 so that the position of the reaper 5 can be moved back and forth and right and left by the crank-shaped portion 11. The feature is a combine displacement device.

[0004]

When the mowing device 5 is moved up and down, the mowing frame 6 is turned up and down to change the distance between the mowing ground and the mowing height. Can be switched. Also, the crank-shaped part 1
The reaper is rotated by rotating the turret 1 around the upper frame 9 side.
5, the position is changed right and left and back and forth. Accordingly, the class
The cutting operation position of the cutting device 5 by the displacement amount of the link-shaped portion 11
Can be moved .

The rotation of the cutting frame 6 also changes the cutting height when the cutting device 5 is displaced in the front-rear direction. However, the correction or correction of the cutting height at this time is as follows.
This is performed by turning the cutting frame 6 up and down. In this way, the movement of the reaper 5 in the left-right direction and the front-rear direction with respect to the vehicle body 8 is controlled by the configuration of the crank-shaped portion 11 of the reaping frame 6 that supports the vehicle body 8.
1 is rotated with respect to the upper frame 9, so that not only the above-described mowing workability is good, but also the configuration of the mowing frame 6 is simple, and the movement can be smoothly performed. The harvesting device 4 of the reaper 5
Also, it is hard to be in the way of a cereal culm transfer device that transfers and supplies to the threshing device.

According to the second aspect of the present invention, the driving means M1 is
Drive the crank-shaped part 11 to support the upper frame 9
, The mowing device 5 changes its position to the left, right, front and back.
Is done. At this time, the reaper 5 is connected to the crank-shaped portion 1.
If the amount of rotation of 1 is large, the tip of the reaper 5 moves in the left-right direction.
The tip is oriented in the left-right direction by a predetermined amount.
, The mowing operation by the mowing device 5 cannot be executed.
Become.

Therefore, the driving means M2 is driven to
By rotating the frame 10, the reaper 5 is moved forward.
Make a good harvesting work by keeping the line almost parallel to the line direction.
be able to.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A combine is equipped with an engine, a control device, a threshing device 7, a paddy tank, etc. on a vehicle body 8 having a pair of right and left crawlers 12, and a horizontal lifting shaft 14 on a support bracket 13 at the front. The rear upper end of the cutting frame 6 is supported so as to be rotatable up and down.

A transmission case 15 at the front of the vehicle body 8 houses a transmission mechanism for transmitting a driving sprocket 16 of the crawler 12 by receiving power from the engine, and a power take-out shaft 17 from a part of the transmission mechanism. An input shaft 19 on the elevating shaft 14 is transmitted via a belt 18, and the respective parts of the mowing device 5 are transmitted from the input shaft 19 via a transmission mechanism inside the mowing frame 6.

The cutting frame 6 has an upper frame 9 and a lower frame 10 formed in a pipe shape, and the two frames 9 and 10 are rotatably connected to each other by a transmission case which is a crank-shaped portion 11. The lower frame 10 side around the axis is rotatable. The transmission shafts 20 and 21 are supported along these frames 9 and 10 and are interlocked with the gears 22 and 23 in the crank-shaped portion 11 so that the transmission shafts 20 and 21 move from the transmission shafts 20 to 21 at any rotation position of the crank-shaped portion 11. Can be transmitted.

In the lower frame 10, a cereal stem raising device 2 having a cereal stem raising lug 1, which can work by receiving power from the transmission shaft 21, a cutting blade device 3 in the form of a clipper, and harvested cereal stems are collected at the rear. A feeding device 4 or the like for feeding is provided, and reaping of a predetermined width can be performed. 24 is a weeding frame, 25 is a cutting blade frame integrated with the lower frame 10, and the cutting blade device 3 is provided along the front side of the cutting blade frame 25, and supports the grain stem raising device 2 above. A raising post 26 is provided.
The structure is such that the cereal stem raising rug 1 is driven and rotated via the internal transmission mechanism.

The rotating operation of the crank portion 11 may be performed by a mechanical operation, but is performed by control motors M1 and M2. The control motor M1 is mounted on the upper frame 9 side, and a gear 27 driven by the control motor M is provided on the crank-shaped portion 11, and the crank motor 11 is driven by the control motor M1.
Is rotated around the upper frame 9. The control motor M2 is provided on the side of the crank-shaped portion 11, and the gear 28 driven by the control motor M2 is provided on the side of the lower frame 10 (which may be an operation gear device). The rotation of the lower frame 10 with respect to 11 corrects and maintains the mowing device 5 in a horizontal position.

The rotation position of the crank-shaped portion 11 of the mowing frame 6 can be fixed at a predetermined position, for example, the left, right, front and rear positions A, B, C, and D. May be provided with a locking mechanism or the like. If the rotational position of the crank-shaped portion 11 is unstable, the mowing device 5 remains in a rotatable state with respect to the upper frame 9 or the lower frame 10 and becomes unstable. The rotation positioning of the crank-shaped portion 11 and the rotation positioning of the lower frame 10 with respect to the crank-shaped portion 11 are performed, or
The structure is such that the cutting blade frame 25 and the like of the mowing device 5 are fixed directly from the vehicle body 8 side.

The raising and lowering of the mowing device 5 is performed by the front end of the vehicle body 8 and
Lift cylinder 2 with hydraulic expansion and contraction with upper frame 9
9. Reference numeral 30 denotes a feed chain of the threshing device 7, which thresh the ears by rotating the handling cylinder of the threshing device 7 while transferring the culms transferred by the cereal culm transferring device 31 at the rear of the mowing device 5 while transferring. The transmission case 1
The traveling transmission mechanism No. 5 is configured to interlock with the sprocket 16 through a combination of the hydraulic continuously variable transmission HST and the differential gear device 33 from the input shaft 32 input from the engine side, and the hydraulic continuously variable transmission HST to differential gear unit 3
In the transmission mechanism transmitting through the differential gear 3, the differential gear device 33
By switching between the high speed H and the low speed L, during high-speed running such as running on the road, the continuously variable transmission HST is performed by the hydraulic continuously variable transmission HST via the high speed H of the differential gear device 33, and the operation is performed as in a combine operation. When traveling at a low speed, the differential gear device 33 is used.
, The continuously variable transmission is performed by the hydraulic continuously variable transmission HST.

[0015] Thus, the capacity of the hydraulic continuously variable transmission HST may be small, it can be made compact, and the cost can be reduced. Also, the conduction efficiency is improved. Transmission case 15
An HST shaft 35 for continuously and interlockingly outputting the forward rotation and the reverse rotation of the hydraulic continuously variable transmission HST from the upper input shaft 32 to the output shaft 34 having the lower drive sprocket 16, and a differential gear device; 33, a differential shaft 37 for fixing a sun gear 36 of a planetary gear mechanism,
Forward / reverse switching shaft 4 having forward gear 40 and reverse gear 41 meshed and transmitted from outer shaft 39 meshing with each planetary gear 38
2, a clutch shaft 43 gear-linked from the forward / reverse switching shaft 42, and a left and right clutch gear 4 on the clutch shaft 43.
Intermediate shaft 47 on which an intermediate gear 46 meshing with the gears 4 and 45 is mounted.
And so on.

The differential shaft 37 is provided with a switching gear 49 which is always integrally rotated and can directly mesh with the gear 48 of the input shaft 32. The switching gear 49 is moved in the axial direction to mesh with the gear 48. Is removed, the brake claw 50 engages with the brake claw 51 of the transmission case 15 so that the rotation of the differential shaft 37 is not performed. Thus, in a state where the brake claw 50 is engaged with the 51, The outer shaft 39 of the differential gear 33 transmitted from the hydraulic continuously variable transmission HST is interlocked at a low speed L,
When the switching gear 49 is engaged with the gear 48, the differential shaft 3
By the rotation of 7, the rotation of the outer shaft 39 also becomes a high-speed H rotation region.

Reference numeral 52 denotes an intermediate shaft, which includes the outer shaft 39 and the forward gear 40.
And an intermediate gear 53 interlocking between the two. Forward gear 4
0, and the reverse gear 41 may have a clutch with the shaft 42 to switch to a state in which the rotation of either side can be transmitted. A configuration that can be selected may be adopted. Also, the gear ratio between the forward gear 40 and the reverse gear 41 is different, and the gear lever 54 and the like for operating the hydraulic continuously variable transmission HST are interlocked with the electromagnetic valve 55 and the like. In both cases, the transmission ratio is the same, and in the high-speed H transmission region, the reverse R by the reverse gear 41 is made slower than the forward F, and a safe transmission ratio is set.

The clutch shaft 43 includes a steering clutch gear 4.
By turning off the gears 3 and 44 and further operating in the same direction, the steering brake 55 is applied to prevent the inner crawler 12 from turning around during steering, thereby enabling a sharp turn. In FIG. 6, the relationship between the forward speed and the reverse speed with respect to the operation angle from the neutral position N to the forward rotation side and the negative rotation side from the neutral position N is as shown in the low speed L range line and the high speed H range line.

[Brief description of the drawings]

 FIG. 1 shows an embodiment of the present invention.

FIG. 1 is a plan view of a part of a combine.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an enlarged view of a part of FIG. 1;

FIG. 4 is an operation view showing a part of the operation.

FIG. 5 is a front sectional view of a transmission unit.

FIG. 6 is a graph showing a relationship between an operation angle of a shift lever and a traveling speed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Raising lug 2 Grain stem raising device 3 Cutting blade device 4 Collection device 5 Cutting device 6 Cutting frame 7 Threshing device 8 Body 9 Upper frame 10 Lower frame 11 Crank-shaped part

Claims (2)

(57) [Claims] 1. A grain culm raising device 2 for raising a culm body to a fixed posture by a raising lug 1, a cutting blade device 3 for cutting a root portion of the raised cereal stem, and a cut culm which is cut. The cutting frame 6 of the cutting device 5 including the collecting device 4 and the like for collecting
An upper frame 9 rotatably supported on a vehicle body 8 on the threshing device 7 side and a lower frame 10 on the mowing device 5 side, and a space between the upper frame 9 and the lower frame 10 is provided.
When providing the crank-shaped portion 11 in the
11 is connected to the upper frame 9 side.
The other end of the hook-shaped portion 11 is connected to the lower frame 10 side,
The rank portion 11 rotates about the upper frame 9 as a fulcrum.
A cutting and displacing device for a combine, characterized in that the position of the cutting device 5 is moved to the left, right, front and rear by moving the cutting device. 2. A driving means is provided below the upper frame 9.
M1 is provided, and the driving of the driving means M1 is performed via a transmission means.
The crank-shaped portion 11 is turned around the upper frame 9 as an axis.
To move the reaper 5 left and right and back and forth.
Further, the crank-shaped portion 11 is provided with a driving means M2,
The driving of the moving means M2 is performed by transmitting the lower frame through the transmitting means.
10 with the transmission means 21 in the lower frame 10 as the axis
2. The apparatus according to claim 1, wherein the rotating means is configured to be rotated.
A combine harvester displacement device as described.