JPH0928162A - Combine - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To enable a combine to stably run the machine regardless of a change in weight of a grain collection unit (glen tank) arranged on one of the left and right sides of the machine. SOLUTION: A pair of left and right crawler traveling devices are supported by a support frame 3 at predetermined left and right intervals, and the support frame 3
The body frame 5 is slidably supported in the left-right direction. The threshing device and the grain collecting unit are arranged side by side on the machine body frame 5, and the cutting unit is supported on the front portion of the machine body frame 5 so as to be slidable in the left-right direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overall structure of a combine for cutting grain culms in a field and threshing them to recover grains.

[0002]

2. Description of the Related Art In a combine as described above, a pair of left and right crawler traveling devices support the machine body, and a cutting section is provided at the front part of the machine body. There are many tanks that are arranged side by side with a grain tank and a hopper for bagging that temporarily stores grain.

[0003]

During harvesting work in the combine, since the grain from the threshing device is sent to and stored in the grain collecting unit, the grain collecting unit arranged on one of the left and right sides of the fuselage The weight is heavy. On the other hand, at the end of the mowing operation, all the grains in the grain collecting section are discharged (either transferred to a truck or packed all the grains in a bag). The weight of the grain collection unit arranged on one side of the left and right is light. As a result, the left-right balance of the aircraft during the mowing work and the left-right balance of the aircraft when traveling on the road after the mowing work are significantly different. Regardless of the
It is necessary to set the left-right spacing (tread) of the left and right crawler traveling devices to be sufficiently large.

However, if the left and right crawler traveling devices are set to have a large left-right distance as described above, traveling on a narrow farm road or the like becomes difficult. In addition, the crawler traveling device largely extends outside from the range of the right and left width of the mowing unit, the step allowance of the crawler traveling device increases, and the crawler traveling device steps over the grain culms that were not mowed by the mowing unit. Many phenomena will occur. An object of the present invention is to make it possible to stably drive the machine both in the harvesting work and on the road, even if the left and right crawler traveling devices are not set to have a particularly large left-right distance in the combine. .

[0005]

[Means for Solving the Problems]

[I] According to the feature of claim 1, the grain from the threshing device is sent to and stored in the grain collecting unit during the mowing operation, and the weight of the grain collecting unit arranged on one of the left and right sides of the machine frame is Since it is heavy, in this case, the machine body frame may be slid to the side opposite to the grain collecting unit with respect to the support frame of the crawler traveling device. Therefore, the heavy grain collecting unit comes close to the left and right central positions of the left and right crawler traveling devices. It will be separated from the central position on the side opposite to the grain collection unit. As a result, even if the weight of the grain collection unit is heavy, the center of gravity of the entire machine body can be located near the center position of the left and right crawler traveling devices.

On the contrary, if all the grains in the grain collecting unit are discharged at the end of the mowing work, the weight of the grain collecting unit arranged on one of the left and right sides of the machine frame becomes light, and in this case, the crawler is used. The body frame may be slid toward the grain collection unit side with respect to the support frame of the traveling device. Therefore, the grain collecting unit that is in a light weight state is separated from the left and right center positions of the left and right crawler traveling devices. Will approach the position. Accordingly, even if the weight of the grain collecting unit is light, the center of gravity of the entire machine body can be positioned near the left and right center positions of the left and right crawler traveling devices.

[II] In some combine harvesters, the harvesting section is supported by the machine body so as to be slidable in the left-right direction. As a result, during mowing work in a wetland, the cutting unit is slid to the uncut side so that the crawler traveling device separates from the uncut side culms, and the mud pushed laterally by the crawler traveling device is removed from the uncut side. Do not cover the grain culm. On the contrary, during the middle cutting work that cuts through the center of the field, slide the cutting unit so that the left and right center of the cutting unit is located at the left and right center position of the left and right crawler traveling devices, and move the left and right crawler. The traveling device prevents the left and right uncut side culms from being stepped on.

In this case, according to the feature of claim 1, in addition to the reaping portion being slidably supported in the lateral direction with respect to the machine body frame, the machine body frame is supported with respect to the support frame of the crawler traveling device. Since the slide operation is supported in the left-right direction, the sliding stroke of the mowing unit with respect to the crawler traveling device becomes sufficiently large. Therefore, the above-described operations performed by sliding the cutting unit in the left-right direction with respect to the crawler traveling device can be performed more appropriately.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 3 and 4, a pair of left and right crawler traveling devices 1 are supported by a track frame 2, and a pair of front and rear arch-shaped support frames 3 are installed across the left and right track frames 2. Square tubular support pipes 4 are fixed to the upper portions of the front and rear support frames 3 so as to be connected to each other.

In a machine body frame 5 constructed by welding various types of square pipes, a pair of frames 5a extending in the left-right direction are slidably inserted into the support pipes 4 so that the machine body frame 5 can move to the left and right with respect to the support frame 3. It is supported so that it can slide in any direction. A pair of front and rear double-acting hydraulic cylinders 6 are connected across a bracket 4 a fixed to the support pipe 4 and a bracket 5 b fixed to the machine body frame 5.

As shown in FIGS. 3 and 4, the body frame 5
The transmission case 7 is fixed to the front frame 5c of the vehicle through the bracket 5d, and the left and right crawler traveling devices 1
The transmission case 9 is arranged between the output pulley 8a of the engine 8 and the input pulley 7a of the transmission case 7, which are fixed to the front right side of the body frame 5. There is.

A drive sprocket 10 of the crawler traveling device 1 is supported on the front end of the track frame 2, and a drive shaft 10a of the drive sprocket 10 and an output shaft 7b protruding left and right from the lower portion of the mission case 7 are splined. Are interlockingly connected via a cylindrical shaft 11 provided with.
A cover 13 fixed to the track frame 2 is externally fitted to a cylindrical cover 12 fixed to the mission case 7 so as to be slidable in the left-right direction.
Output shaft 7b, drive shaft 10a and cylindrical shaft 1
1 is covered.

In the body frame 5 supported by the support frame 3, the support bracket 17 is fixed to the frame 5c as shown in FIGS. 3 and 1, and the support frame 18 is vertically moved around the horizontal axis P1 of the support bracket 17. It is supported so that it can be rocked and slid horizontally. A screw shaft 22 oriented in the left-right direction is inserted into a screw portion of the support frame 18, and an electric motor M that rotationally drives the screw shaft 22 is provided. By rotating the screw shaft 22 by the electric motor M, the support frame 22 is rotated. 18 is slid to the left and right (see FIG. 2). The raising device 23 and the clipper-type cutting device 24 are supported by the support frame 18, and the support frame 18 is provided with the cutting unit 14.

As shown in FIGS. 1 and 2, a threshing device 15 is provided on the left side of the machine frame 5, a grain tank 16 (corresponding to a grain collecting section) is provided on the right side of the machine frame 5, and a maneuver is provided on the front right side of the machine frame 5. The portion 19 is arranged, and the discharged straw processing device 20 including the discharged straw shredding device and the binding device is connected to the rear portion of the machine body frame 5.

With the above structure, the body frame 5 is slid along the left-right direction with respect to the support frame 3 and the crawler traveling device 1 by expanding and contracting the hydraulic cylinder 6, and together with the body frame 5. Mowing unit 14, threshing device 15, Glen tank 16, control unit 1
9, the engine 8, the transmission case 7, and the exhaust straw processing device 20 are slid in the left-right direction. In this case, the sliding operation of the mission case 7 with respect to the crawler traveling device 1 is performed by the covers 12, 13 and the cylindrical shaft 11 shown in FIG.
Is absorbed by By sliding the support frame 18 to the left and right with respect to the support bracket 17 by the electric motor M, the reaper 1 is removed from the machine frame 5.
4 is slid in the left-right direction as shown by the chain double-dashed line in FIG.

[Other Embodiments of the Invention] Instead of the hydraulic cylinder 6 shown in FIGS. 3 and 4, a screw shaft (not shown) is connected between the machine body frame 5 and the support pipe 4, and the screw shaft is used as a handle. The machine body frame 5 may be configured to slide by manually rotating it (not shown).

[0017]

As described in the features of claim 1, by supporting the body frame (the cutting unit, the threshing device and the grain collecting unit) so as to be slidable in the left-right direction with respect to the crawler traveling device, It has become possible to position the center of gravity of the entire body near the center position of the left and right crawler traveling devices irrespective of changes in the weight of the recovery unit. This allows
Even if you do not set the left and right crawler traveling devices to a particularly large distance, the aircraft will be able to travel stably both in the mowing work and on the road. If it is difficult to run on a narrow farm road by setting it to a large one,
It is possible to prevent a situation where the crawler traveling device has a large step margin.

By supporting the reaping unit so as to be slidable in the left-right direction with respect to the machine frame, an operation is performed to prevent mud from covering the uncut side of the grain culm during the reaping work in the wetland. The operation for preventing the left and right uncut side grain culms from being stepped on by the left and right crawler traveling devices during the split reaping work can be appropriately performed, and the combine harvesting performance can be improved.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of drawings]

1] Overall side view of combine

FIG. 2 is an overall plan view of the combine.

[Figure 3] Front view in vertical section near the mission case

FIG. 4 is a perspective view showing a support structure for a body frame.

[Explanation of symbols]

 1 Crawler traveling device 3 Support frame 5 Airframe frame 14 Mowing unit 15 Threshing device 16 Grain collecting unit

Claims (1)

[Claims] 1. A pair of left and right crawler traveling devices (1) are supported by a support frame (3) at predetermined left and right intervals, and a body frame (5) is supported on the support frame (3) so as to be slidable in the left and right directions. Then, the fuselage frame (5)
The threshing device (15) and the grain collecting unit (16) are arranged side by side on the left and right, and the cutting unit (14) is provided at the front of the machine frame (5) in the left-right direction with respect to the machine frame (5). A combine that is supported by slide operation.