JPS6181725A - 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 provides a reaping section frame that is connected to a traveling vehicle body equipped with a threshing device so as to be able to rise and fall freely, and a divider, a pulling device,
A reaping device and a reaped grain culm conveying device equipped with a handling depth adjustment function are installed, and the reaping device is configured to be height adjustable from a standard position to a downward side with respect to the reaping section frame by hand operation. Regarding a certain combine harvester.

[Conventional technology]

When the vehicle body reaches a ridge during harvesting, the combine harvester raises the reaping section frame and lowers the reaping device to avoid contact between the divider and the ridge while removing grain culms at the edge of the ridge. It is structured so that it can be harvested, and has the characteristic that it can harvest up to the planted grain culms at the corners of the ridges that are curved at almost right angles.
Normally, when the reaping section frame is raised, the harvested grain culm conveying device also rises together with the reaping section frame (references not listed).

[Problem that the invention seeks to solve]

In general, if the harvested grain culm conveying device is equipped with a handling depth adjustment function, it can be adjusted automatically or manually depending on the grain culm length to perform movements such as rocking and clamp the grain in the direction of the grain culm. Change position.

In addition, in the case where the temperature absorption is automatically adjusted, the grain culm length is detected by a sensor, and the operation for adjusting the handling depth is performed based on the detection result.

Therefore, when the reaping section frame is raised and the reaping device is lowered, even if the handling depth is automatically adjusted, the harvested grain culm immediately after being raised will be handled shallowly. This is because the automatic adjustment is activated by the detection signal of the sensor, so although it takes a short time to activate, it takes a certain amount of time.
This is also because a certain amount of time is required until the operation of the transport device is completed.

In addition, in the case where the handling depth is manually adjusted, the starting end of the conveyance device is lowered by an amount approximately equal to the amount of rise of the reaping section frame at the same time as the reaping section frame is raised (naturally, the reaping device is also lowered). However, this manual adjustment is difficult to perform accurately and there are problems such as erroneous operation, so there is room for improvement.

The present invention has been made in view of the above-mentioned circumstances, and when the reaping section frame and the reaping device are relatively displaced, no matter what the amount of displacement is, the handling depth of the grain culm is The objective is to provide a combiner in which the values are maintained at a desired value.

[Means for solving problems]

The present invention is characterized in that a mechanism is provided that automatically corrects and operates a handling depth adjustment mechanism provided in the harvested grain culm conveying device in conjunction with the relative displacement of the reaping section frame and the reaping device. The functions and effects are as follows.

[For production]

As mentioned above, since the handling depth adjustment mechanism operates in conjunction with the displacement of the reaping frame, etc., its operation speed is extremely high compared to a mechanism that adjusts after detecting changes in culm length with a sensor. Furthermore, no matter what the amount of displacement of the reaping section frame, etc., the handling depth adjustment mechanism can be operated accurately by the required amount. In other words, when the reaping section frame, etc. is displaced, the handling depth adjustment mechanism operates at approximately the same timing in conjunction with the reaping section frame, etc., without needing to receive the culm length detection signal from the sensor. This can be done equally well in each case when raising or lowering the frame. Further, the operating amount of the temperature absorption adjustment mechanism is obtained directly through the interlocking system without using a sensor or the like, so it is accurate.

〔Effect of the invention〕

Therefore, a combine harvester has been provided in which the handling depth does not change even when the reaping section frame or the like is displaced at the edge of a row, and a good harvesting operation can be maintained.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Fig. 1, a driving section (8) is provided at the front of a vehicle body (2) that runs on a crawler traveling device (1), and a threshing device (B) is mounted on the vehicle body (2). A combine harvester is constructed by connecting a reaping pre-processing section (C) to the front end of the harvester so as to be movable up and down about the left-right axis (P) of the vehicle body.

The reaping pre-processing section (C) includes a plurality of dividers (3) for dividing the planted grain culm, a plurality of pulling devices (4) for causing the planted grain culm, and a planted grain culm stump. A clipper-type reaping device (5) that cuts the base, and a reaped grain culm equipped with a handling depth adjustment function that sends the reaped grain culm backward and upward and supplies it to the feed chain (6) of the threshing device (A). A reaping unit that is connected to the transport device (7) and the vehicle body (2), and is equipped with a divider (3), a pulling device (4), a reaping device (5), and a transport device (7), respectively. It consists of a frame (8), and a hydraulic cylinder (9) disposed between the frame (8) and the vehicle body (2) allows the reaping pre-treatment section (C) to be adjusted up and down relative to the vehicle body (2). Ru.

As shown in FIGS. 1 and 2, the combine harvester is constructed so that the grain culms can be planted at the edge of the ridge without bringing the divider (3) into contact with the ridge.

That is, the reaping section frame (8) includes a longitudinal transmission frame (8a) that transmits the driving force from the vehicle body (2), and a horizontal transmission frame (8b) attached to the front end of this transmission frame (8a).
, a pulling device drive frame (8c) that drives the pulling device (4), a divider frame (8d) that supports the divider (3), etc., and a cutting blade frame (10) on the lower surface of the horizontal transmission frame (8b). The rear end is swingably supported about the horizontal axis (Q), and the reaping device (5) is attached to the front end of this cutting blade frame (10).

This cutting blade frame (10) is connected to the divider frame (8).
d), and an arm (11) that swings integrally with the frame (10) is attached to the pivot portion of the cutting blade frame (lO). ) and a hydraulic cylinder (12) attached to the divider frame (8d) are drivingly connected, and the height of the cutting blade frame (10) can be adjusted in the vertical direction with the divider frame (8d) as the upper limit by the hydraulic cylinder (12).

The harvested grain culm conveying device (7) is an endless belt (7a) for conveying the harvested grains by pinching the stock.
and a tip-locking conveyance endless belt (7b), and each endless belt (
7a) and (7b) are integrally attached to the reaping part frame (8) so as to be able to swing around the axis (P), and the handling depth can be adjusted by raising and lowering the front end thereof with a hydraulic cylinder (13). I do.

Two frames (8) are provided so that the cutting depth does not change by lowering or raising the cutting blade frame (lO) in response to the raising or lowering of the reaping part frame (8).

(10) and the relative lifting and lowering of the transport device (7) is performed via a control device (14). In other words, as shown in Fig. 4, the control system detects the lifting lever (15) that raises and lowers the reaping part frame (8), the switch (16) attached to the side of the lever (15), and the swinging operation of the lever. switch (17), (17), a sensor (S,) that detects the amount of elevation of the reaping section frame (8) with respect to the vehicle body, a sensor that detects the amount of elevation of the conveying device (7) with respect to the reaping section frame (8). (S2), a sensor (S3) that detects the amount of elevation of the cutting blade frame (10) with respect to the reaping part frame (8);
), the hydraulic cylinder (9) that raises and lowers the cutting blade frame (10), the hydraulic cylinder (12) that lifts and lowers the cutting blade frame (10), the hydraulic cylinder (13) that lifts and lowers the conveying device (7), and these cylinders ( 9), (12),
Hydraulic valve (V+) for (13), (Vz)
, (Vs), this valve (V + ).

(vz), (v3) drive circuit (D+
), (Dz).

(D3), a control device (14), etc., each of the sensors (Sυ, (St) is rotatable about an axis (P), and the sensor (S3) is rotatable about an axis (Q). Potentiometers are used for these sensors.

The switch (16) is a switch for controlling the lift lever (15).
It is provided so that it can be turned on by gripping the swinging piece (18) provided below the grip (15a) at the same time as the grip (15a). When you operate the reaping section frame (8)
and the cutting blade frame (10) are relatively changed, and the conveying device (7) is displaced so as not to change the handling depth. Here, the hydraulic cylinder (13) is referred to as a handling depth adjustment mechanism.

Incidentally, during the above control, the amount of elevation of the reaping section frame (8) can be set arbitrarily, and the control device (
14) performs calculations and displaces the cutting blade frame (10) and the transport device (7), respectively. In addition, three sensors (S
t), (sz), and (S3) detect the respective displacement amounts and feed them back to the control device (14). Also, the lift lever (15) can be moved without turning on the switch (16).
When is operated, the entire reaping pre-processing section (C) moves up and down.

In the figure, (19) is a tip sensor, (20) is a stock switch, and (21) is a handling depth setting device. 7) constitutes a mechanism that automatically adjusts the handling depth by swinging. This automatic adjustment mechanism is controlled by the control device (
14) is shared.

[Another example]

In this embodiment, hydraulic cylinders (12) and (13) are used to swing the cutting blade frame (lO) and the harvested grain culm conveying device (7).
However, another drive device such as an electric motor may be used, and the control device (14) may be configured with a microprocessor sensor to operate according to a preset program. The device may be configured with a hard circuit.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, and FIG.
The figure is a schematic side view of the front part of the vehicle body showing a state of harvesting work at the edge of a ridge, FIG. 3 is a schematic side view of the front part of the vehicle body showing a normal harvesting work state, and FIG. 4 is a block diagram of the control device. (2)...... Running vehicle body, (3)...... Divider, (4)...... Pulling device, (5)......
... Reaping device, (7) ... Reaped grain culm conveying device,
(8)... Reaping section frame, (13)...
... Handling depth adjustment mechanism, (B) ... Threshing device.

Claims (1)

[Claims] A divider (3) is attached to the reaping frame (8) which is connected to the traveling vehicle body (2) on which the threshing device (B) is mounted so that it can be raised and lowered.
, a lifting device (4), a reaping device (5), and a reaped grain culm conveying device (7) equipped with a handling depth adjustment function, and the reaping device (5) can be operated by hand to move the reaping section frame. In contrast to (8), the combine harvester is configured to be height adjustable downward from the standard position, and is interlocked with the relative displacement of the reaping section frame (8) and the reaping device (5). The combine harvester is provided with a mechanism that automatically adjusts and operates a handling depth adjustment mechanism (13) equipped on the harvested grain culm conveying device (7).