JPH0242917A - combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a combine harvester.

(Prior art) Conventionally, a traveling device was provided below the frame, a threshing device was provided on the E side of the traveling device, and a reaping section was provided in front of the threshing device, and the section between the reaping section and the threshing device was also used for adjusting the handling depth. A combine harvester is known in which a hand-over device is provided, a gap is formed in the upper part between the terminal end of the transfer device and the starting end of the grain culm holding device of the threshing device, and hand-cut grain culm can be supplied through the gap. .

Further, in the case of headland processing, the above-mentioned known combine harvester is configured such that (1) the reaping section is moved upward when the shift lever is in the forward/backward position, and (2) the reaping section is lowered when the shift lever is in the neutral position.

(Problem to be Solved by the Invention) In the case of headland processing, the known combine harvester is configured such that the reaping section is lowered when the gear shift lever is in the neutral position, but the grain depth between the reaping section and the threshing device is 5 g. The handover device, which also serves as a flute, has a structure that does not move, causing problems in the supply of hand-cut grain culms.

The present invention solves this problem.

(Means for Solving the Problems) Therefore, the present invention provides a structure in which the traveling device 2 is placed below the frame l,
A threshing device 3 is provided above the traveling device 2, a reaping section 4 is provided in front of the threshing device 3, a transfer device 8 is provided between the reaping section 4 and the threshing device 3, which also serves as a handling depth adjustment, and the transfer device In the combine harvester in which a gap is formed in the upper part between the end of the grain culm holding device 11 of threshing #ia3 and the starting end of the grain culm holding device 11 of threshing #ia3, the hand-cut grain culm can be supplied from the gap 12. A neutral detection switch 17 for detecting the neutral state of the gear shift lever 16 and a changeover switch 21 for switching between headland processing and normal processing are provided, and the detection switch 17, the changeover switch 21, and the transfer device are provided. 8 is a combine harvester configured such that when the switch 7 switch 21 is switched to the headland treatment side and the detection switch 17 detects neutrality, the transfer device 8 is moved down in conjunction with this. .

(Example) An example of unharvested 1!1 will be explained with reference to the drawings. 1 is a frame, 2 is a traveling device below the frame L, 3 is a threshing device of the frame IL, and 4 is a reaping device in front of the threshing device 3. Department.

The reaping section 4 has a cutter body 5, a lifting device 6, and a cutting blade 7.

A transfer device N8 is provided between the reaping section 4 and the threshing device 3. The takeover device 8 has a root conveying device 9 and a tip conveying device 10, but some devices include only the root conveying device 9.

The terminal end of the transfer device 8 and the starting end of the grain culm holding device U of the threshing device 3 have a structure that allows the grain culm to be transferred, but a gap 12 is formed in the L portion, and from the gap 12, the grain culm can be removed by hand. Grain culm can be supplied.

The transfer device 8 is operated by the motor 13 and can be adjusted to a shallow handling relationship, and when reversed, it can be adjusted to a deep handling relationship.

However, since the gap arrangement changes in size between the deep handling state and the plate forming state, when hand-cut grain culms are introduced, it is preferable that the gap 12 is automatically widened to the maximum in the deep handling state. .

The present invention has been devised in this respect, and a neutral detection switch 17 is fixed to the fuselage side at an intermediate position in the length direction of the gear shift lever 16.
At the position where the tip of the actuating piece 18 of the neutral detection switch 17 hits,
The gear is changed so that the cam piece 19 comes, and is fixed to 8-16, and a recessed portion is formed in the center of the cam piece 19, so that when the gear shift lever 16 is in forward or reverse movement, the actuating piece 18 is pressed by the cam piece 19. It turns ON, and turns OFF when the actuating piece 18 engages in front of the recess.
Configure it so that

In addition, there is a selector switch 2 for headland treatment and normal treatment at any position.
1 is provided, and when the changeover switch 21 is switched to the normal processing side, the neutral detection switch 17 and the changeover switch 21 are operated to raise and lower the cylinder 24 of the reaping section 4 by operating the power steering upper switch η and the power steering lower switch O. Cylinder δ is activated. Further, the motor 13 is operated by a sensor provided in the conveyance path of the transfer device 8 to automatically adjust the handling depth.

When the selector switch 21 is switched to the headland processing side and the gear shift lever 16 is placed in the neutral position, the neutral detection switch 17 is turned OFF, the motor 13 is energized, and the transfer device 8 is moved to the deep handling position. automatically lowers.

Then, the gap 12 is widened to the maximum to facilitate the introduction of hand-cut culms.

In addition, the grave is a two-bottom cylinder.

(effect) Next, we will discuss the effect.

When the changeover switch 21 is turned to the "normal side" and the grain moves forward, the weed cutting body 5 is used to divide the grass, the pulling device 6 is used to raise the grass, the cutting blade 7 is used to reap the grass, and the transfer device 8 is transferred to the grain culm holding device U of the threshing device 3. ,
Thresh. During this time, the automatic cutting height sensor detects the ground clearance, and the power steering upper switch η and power steering lower switch n
is automatically turned on and off, the raising cylinder 24 and the lowering cylinder 5 are operated, and the cutting height of the cutting section 4 is automatically controlled. Moreover, the power steering upper switch η and the power steering lower switch n can be turned ON and OFF manually, and the L-shaped cylinder 24. The lowering cylinder b can be activated manually.

Therefore, when moving forward or backward on a headland, the changeover switch 21 is turned to the "pillow processing" side, and the changeover switch 21 is turned ON in FIG. 7. Therefore, the gear shift lever 16
is set to the neutral position, and the actuating piece 18 of the neutral detection switch 17 engages with the recess of the cam piece 19, turning it OFF (the position indicated by the solid line is N).
), the lowering cylinder 5 is activated to lower the reaping unit 4 (up to this point, the same as before), and at the same time the motor 1 is activated.
3, the transfer device 8 is lowered, and the gap 4 is enlarged to facilitate the introduction of the hand-cut culm.

(Effects) Conventionally, a traveling device is provided below the frame, a threshing device is provided above the traveling device, a reaping section is provided in front of the threshing device, and a transfer device that also serves as a handling depth adjustment is provided between the reaping section and the threshing device. established,
A combine harvester is known in which a gap is formed in the upper part between the terminal end of the transfer device and the starting end of the grain culm holding device of the threshing device, so that hand-cut grain culms can be supplied through the gap. Further, in the case of headland processing, the known combine harvester is configured such that the reaping section is raised when the CD shift lever is in the forward/reverse position, and the reaping section is lowered when the shift lever is in the neutral position.

However, in the case of headland processing, the known combine harvester is configured so that the reaping section is lowered when the gear shift lever is in the neutral position, but the transfer device between the reaping section and the threshing device, which also serves as a handling depth adjustment, remains unchanged. Due to the immovable structure, there was a problem in supplying hand-cut grain culms.

However, in the present invention, the traveling device 2 is placed below the frame 1.
A threshing device 3 is provided above the traveling device 2, a reaping section 4 is provided in front of the threshing device 3, a transfer device 8 is provided between the reaping section 4 and the threshing device 3, which also serves as a handling depth of 31ffj, and the transfer device There is a gap at the top between the end of 8 and the beginning of the grain culm support 2til of threshing device 3! 2, and the combine harvester is configured such that hand-cut grain culms can be supplied from the gap, wherein the transfer device 8
A neutral detection switch 17 that detects the neutral state of the gear shift lever 16 and a changeover switch 21 that changes between headland processing and normal processing are provided ('%, the detection switch 17 and the switching The switch 21 and the takeover device 8,
When the changeover switch 21 is switched to the headland processing side and the detection switch 17 detects neutrality, the transfer device 8 is a combine harvester configured to move downward in conjunction with this, so that the headland can be moved forward. Or, when going backwards, move the selector switch 21 to the "pillow handling" side, and then press the gear shift lever 16.
When the switch is placed in the neutral position and the operating piece 18 of the neutral detection switch 17 engages with the recess of the cam piece 19 to turn it off, the lowering cylinder δ is activated to lower the reaping unit 4, but at the same time, the motor 13 activates the transfer device. 8 is lowered and the gap 12 is enlarged, which has the effect of making it easier to insert the hand-cut culm.

[Brief explanation of the drawing]

Figure 1 is a side view of the combine, Figure 2 is the gear shift lever.
3 is a side view of the gear change lever, Figure 4 is the shaft stop of the reaping part, Figure 5 is a perspective view of the gear lever, Figure 6 is a hydraulic system diagram, and Figure 7 is a circuit diagram. . Explanation of symbols 1... Frame, 2... Traveling device, 3... Threshing device, 4... Reaping section, 5... Grass cutting body, 6... Pulling device, 7... Cutting blade , 8... Taking over device, 9... Root conveying device, 10... Tip conveying device, 11... Grain culm holding device,... Gap, 13... Motor, 14...
Link mechanism, 15... Shaft portion, 16... Gear shift lever,
17... Middle detection switch, 18... Actuation piece, 19.
...Cam piece, redundant recess, 21...changeover switch, η...power steering upper switch, n...power steering lower switch, 24...up cylinder, b...downward cylinder, redundant... ...-lower cylinder. Figure 2 Figure 4 Figure 6

Claims (1)

[Claims] A traveling device 2 is provided below the frame 1, a threshing device 3 is provided above the traveling device 2, and a reaping section 4 is provided in front of the threshing device 3. A transfer device 8 is provided, and a gap 12 is formed in the upper part between the terminal end of the transfer device 8 and the starting end of the grain culm holding device 11 of the threshing device 3, so that hand-cut kernels can be supplied from the gap 12. In the combine harvester, the transfer device 8 is configured to perform deep handling when it is moved downward, and is provided with a neutral detection switch 17 that detects the neutral state of the gear shift lever 16, and a changeover switch 21 that switches between headland processing and normal processing. The detection switch 17, the changeover switch 21, and the transfer device 8 are configured such that when the changeover switch 21 is switched to the headland processing side and the detection switch 17 detects neutrality, the transfer device 8 is moved down in conjunction with this. Combine harvester.