JPS62175112A - Reaped grain straw transfer apparatus of 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 applications The present invention relates to a harvested grain culm transfer device for a combine harvester.

Conventional technology The rolling control of the reaping device installed in the front of the vehicle body and the grain culm extraction method controlled by the movement of the grain culm transfer device that transfers the harvested grain culm of the reaping device and supplies it to the threshing device are independently controlled. This is the configuration to be performed.

Problems to be Solved by the Invention In a configuration where the reaping device is controlled to roll relative to the vehicle body independently of the grain culm transfer device, if the rolling of this reaping device increases, the grain culm harvested by this reaping device may be inherited. between the grain transfer device and the grain culm transfer device to be transferred and supplied to the threshing device.
When the harvested grain culm is inherited, the inheritance position in the direction of the culm changes greatly, and the feeding depth of the tip of the grain in the threshing device changes, resulting in problems such as extremely deep handling or shallow handling.

In such a case, the handling depth control works to adjust the length of the grain culm transfer by the grain culm transfer device, but if the handling depth is If the depth detection device detects the feeding depth of the grain culm and then adjusts and controls the grain culm transfer device, the grain culm that has already been transferred and fed by the grain culm transfer device to the threshing device will be It is not possible to achieve an appropriate handling depth, and control will be delayed.

Means for Solving the Problems The present invention provides a means for solving the problems by tilting the vehicle body (1) from side to side.
A rolling device (8) that rolls the reaping device (3) to make it horizontal with respect to 1), and a rolling device (8) that makes the reaping device (3) horizontal; The grain culm transfer device (10) for supplying grain culms with adjustable depth is configured as a reaped grain culm transfer device of a combine harvester in which changes in handling depth due to rolling are kept within a certain range.

Effect of the Invention The grain culm to be harvested by the reaping device (3) is transferred to the grain culm transfer device (10).
The kernels are transferred to the threshing device (9), and the ears are fed into the threshing device (9) to a predetermined depth for threshing. When the running vehicle body (1) tilts in the left-right direction, the reaping device (3) is rolled into a horizontal position based on this inclination, thereby maintaining a constant cutting height over the cutting width.

Furthermore, when the grain culm transfer position by the grain culm transfer device (10) is changed toward the culm direction, the depth of grain culm supply to the threshing device (9) is changed and adjusted.

The reaping device (3) is rolled at a predetermined angle, and this rolling moves the grain culm transfer device (10) to adjust the feeding depth of grain culm to the threshing device (9), thereby adjusting the handling depth. to be constant. As the rolling angle of the reaping device (3) to the left or right increases, the position at which the reaping device (3) transfers the harvested grain culm to the grain culm transfer device (10) changes from longer to shorter. Then, for example, the starting end of the grain culm transfer device (10) is transferred to this reaping device (3).
If the grain culm is to be moved away from the grain or if it is to be shortened, the grain culm supply depth to the threshing device (9) is kept constant by, for example, being brought closer to the reaping device (3).

Effects of the Invention As described above, when the reaping device (3) is largely rolled left and right with respect to the vehicle body (1), the grain culm transfer device (10) changes the depth of grain culm supply to the threshing device (9). In order to keep the grain constant, the harvested grain culm is transferred to a grain culm transfer device (10
) to the threshing device (9), accurate and quick handling depth adjustment processing can be performed.

Embodiment In the illustrated example, the combine harvester has a vehicle body (1) which has a pair of left and right running devices (17) in the form of a crawler, and a threshing device (9) is mounted on the - side, and a control device is mounted on the other side. (1
8), the prime mover, grain tank (19), etc. are installed, and the vehicle body (
A reaping device (3) is provided as a working device on the front side of 1), and a grain culm transfer device (10) is provided between the reaping device (3) and the threshing device (9).

The reaping device (3) cuts one end of a working machine frame (2) made of a cylindrical material around a horizontal axis (21) on a transmission device (20) located at the front of the vehicle body (1). A rolling metal (
5) Connect the cylindrical parts of the same shape at the center of the work frame (4) using (6). This work frame (4) includes a weeding frame (22), which is each part of the reaping device, and a grain culm lifting device (23) that raises grain culms.
), a raking device (24) that rakes the grain culm backward after it is erected.
A cutting blade device (25) for cutting the bedside portion of this raked grain culm is provided.

The rolling metal (5) is fixed to the lower end of the work machine frame (2), and the rolling metal (6) is fixed to the upper end of the work frame (4).
The contact surface (14) is formed in the vertical direction, overlapped with an O-ring (41), and has a shaft hole on the left and right sides into which a front-rear horizontal rolling shaft (11) is fitted. and can be rotated relative to each other around a rolling axis (11). Further, on the other side, a guide part (15) having a U-shaped guide groove in plan view is provided on the rolling metal (5) side, and a guide part (15) consisting of a guide piece on the rolling metal (6) side is attached to this guide part. 16) so that it can be rolled and rotated around the rolling shaft (11), and the ring metals (5) and (6) at both ends are prevented from opening back and forth together with the rolling shaft (11). ing.

A power transmission shaft (3) is installed inside the work machine frame (2) and work frame (4).
5) is provided, and is transmitted and rotated from the horizontal shaft (21) J-, and is connected to the cutting blade device (25), the raking device (24), and the grain culm lifting device via the transmission mechanism in the work frame (4). Equipment (23
), etc. rolling metal (5
) A configuration such as providing a universal joint at the position (6) can perform rolling and transmission.

The work equipment frame (2) has a lifting cylinder (
2B), the horizontal axis (21) via the bending link (27), etc.
), and is pivoted to the tip of this bending link (27), as well as supporting shafts at both left and right ends of the support member (28) fixed to the work equipment frame (2). (29
) In (30), one of the supporting shafts (28)
A hydraulically extendable rolling cylinder (12) is provided between the side part of the work frame (6) and the support shaft (30) on the other side rolling shaft (11) and the side part of the work frame (6). A link mechanism (1) consisting of a four-point link (31) is connected to the side part.
3), the work frame (6) is arranged in such a manner that it can rotate downwardly around the rolling shaft (11).

Each of the four-point links (31) is connected by a swivel bearing, and is configured to follow the rotation of the work frame (6) about the rolling shaft (11) in an arcuate trajectory when viewed from the front.

A horizontal sensor (32) for detecting the inclination and horizontal posture of the reaping device (3) is provided near the extension line of the rolling axis (11) of the reaping device (3), and the horizontal sensor (32) and
The rolling valve (34) of the hydraulic circuit (33) of the rolling cylinder (12) constitutes a rolling device (8), and when the vehicle body (1) tilts from side to side, this is detected by a horizontal sensor (32). The rolling valve (34) is switched in response to the signal from the horizontal sensor (32) to extend and retract the rolling cylinder (12), thereby controlling the cutting blade device (25) of the reaping device (3) so that it becomes horizontal in the horizontal direction. let

When the horizontal sensor (32) detects the horizontal position, the rolling cylinder (12) is not expanded or contracted but maintains that position. This horizontal sensor (32) is attached to a component of the reaping device (3) in a vibration-proof manner by interposing a suitable elastic body such as a rubber material or a spring.

A parallel detection mechanism (7) consisting of a limit switch (36) and a cam surface (37) is provided between the rolling metals (5) and (6). ) is turned on and off depending on the degree of contact pressure with the cam surface (37) of the rolling metal (5),
In the position where the limit switch (36) is not in contact with the cam surface and in the position where it is in deep contact with the cam surface, the parallel valve (38) of the hydraulic circuit (33) is switched to a state where the rolling cylinder (12) is expanded and contracted. The rolling cylinder (12) in the rolling position is operated to a neutral parallel position, and the reaping device is placed in a left-right parallel position with respect to the vehicle body (1).

When this parallel position is reached, the limit switch (3B) is turned off, the parallel valve (38) is placed in a neutral state, and the parallel posture of the reaping device (3) is maintained. Further, the range of the cam surface (37) that is set at this neutral position is set within a certain angular range.

Parallel control by this parallel detection mechanism (7) and horizontal sensor (
The rolling control of the rolling device (8) according to 32) can be switched by the control device (18) by operating a control switch.

The working machine frame (2) can be raised and lowered around the horizontal axis (21) by expanding and contracting the lifting cylinder (26), but the reaping device (3)
A cutting height detection sensor is installed in the weeding frame (22) to detect the height to the cutting ground, and this controls the elevation control of the hydraulic circuit to maintain the cutting height at the set height via a parallel valve. It consists of

The collecting section (39) located at the rear of the scraping device (24) is
After harvesting, the grain culms are collected from the left and right, and the rolling metal (
5) The front side of (6) is extended obliquely toward the upper part of the rear toward the threshing device (9) side, and is configured to be inherited by the starting end of the grain culm transfer device (10) in the rear portion. The rolling shaft (11) is provided so as to be deviated from the width of the reaping device (3) toward the joining portion between the collection portion (39) and the transfer device (10). A threshing transfer device (40) is provided on the outside of the threshing device M (9), which pinches and transfers the stock base of the threshing culm in the front-rear direction, and inherits the grain culm transferred from the transfer device (10). , the tip portion is fed to the threshing room and threshed. This transfer device (1
0) has a configuration in which the rear end portion is freely rotatable around a horizontal shaft (21) and is transmitted from this horizontal shaft (21), and the tip portion is engaged with a stock head transfer device that pinches and transfers the stock head portion. While detecting the handling depth of grain culms using a device depth sensor consisting of a head tip guide device that guides the grain transfer, the transfer device (10) is moved up and down so that this handling depth becomes the set length. It is also possible to adopt a configuration in which the control is performed by

Attach the rolling shaft (1) to the upper edge of the rolling metal (6).
1) A cam (42) is provided with a higher side and a lower side facing away from the rolling shaft (11), and an arm (43) projecting downward from the frame of the grain culm transfer device (10) is attached to the edge of the cam (42). The cam (42) rotates around the rolling axis (11) to bring the arm (43) into sliding contact with the grain culm transfer device m (10) to move it up and down around the horizontal axis (21). It is the composition. That is, the rolling axis (11)
The distance from the cutting blade device (25) to the left and right lateral ends is large;
Rolling cylinder (1) on the right side when facing the direction of travel (A)
2) Set the edge of the cam (42) on the closer side lower (D) and the edge of the cam (42) on the opposite side higher (E), and then install the reaping device (3).
) rolls to the right, the cam (42) of the rolling metal (6) moves the grain culm transfer device (
10) in one direction, and conversely, when the reaping device (3) rolls to the left, the arm (43)
) is operated to lower the grain culm transfer device (10), and the position where the grain +■ is held from the ear tip side is maintained within a certain range.

In combine harvester work, as the vehicle body (1) moves forward using the traveling device (17), the grain culms that have been weeded by the weeding frame (22) are erected by the grain culm lifting device (23) and raked. While being scraped by the device (24), the base of the stock is cut by the cutting blade device (25).
be reaped. This harvested grain culm is transported by a rolling shaft (11) by a collecting section (39) on the rear side of the raking device (24).
The grain culm transfer device (10) on the rear side is transferred through the grain culm transfer device (10), and is supplied from the rear end to the threshing transfer device (40) of the threshing device (9). Then, the tip of the grain is fed to the threshing room where it is threshed.

To change and adjust the cutting height of the grain culm, use the lifting cylinder (26
), and when this lifting cylinder (26) is extended, the bending link (27) is opened and the work machine frame (2) is rotated in one direction around the horizontal axis (21). , rolling metal (5) (6), and rolling shaft (11)
etc., the reaping device (3) is raised by 1. Also, when the lifting cylinder (26) is contracted, the reaping device (3) is lowered.

In such cutting height adjustment or control, at the transfer section from the harvesting, collecting and transporting grain culm collection section (38) to the grain culm transfer device (10), the vertical interval between these changes and the grain culm transfer device (10) changes. )
When the gripping position of the grain culm changes, the grain culm transfer device (10) is adjusted up and down or adjusted to adjust the gripping position from the ear side within a certain range, and the threshing device (9) Keep the supply depth constant.

When performing rolling control on the reaping device (3) under conditions such as a soft reaping soil surface, the rolling control operation switch is turned on and the parallel control switch is turned off. When the traveling device (17) is tilted so that the right side sinks in the traveling direction (A) as shown in Fig. 3, the horizontal sensor (
32) operates the rolling valve (34) to extend the rolling cylinder (12) and open the reaping device (
3) Rotate (b) to the left to take a horizontal position (4th
figure). In this horizontal position, no signal is emitted from the horizontal sensor (32), so the rolling valve (34) is in the neutral position and the rolling action is stopped.

Conversely, when the traveling device (17) tilts to the left as shown in Fig. 5, the horizontal sensor (32) detects the rolling valve (34).
) is switched and the reaping device (3) rotates to the right (c).
and placed in a horizontal position (Figure 6).

When such rolling action is stopped and switched to parallel control, the parallel detection mechanism (7) is activated and the reaping device (25) is rolled beyond a certain parallel position range with respect to the vehicle body (1). If so, the limit switch (38) detects this and operates the parallel valve (3 days) to extend or contract the rolling cylinder (12) and move the reaping device (3) parallel to the vehicle body. When this parallel control is completed, the limit switch (36) of the rolling metal (6) faces the neutral position of the cam surface (37), so the parallel valve (38) is in the neutral state and the mowing is started. Device(
In the parallel position 3), the vehicle body (1) remains in a stopped position regardless of the left and right inclination, and can run or harvest.

When the reaping device (3) is controlled in rolling or parallel manner by expansion and contraction of the rolling cylinder (12), the link mechanism (13) between the support member (28) and the work frame (4)
is expanded or contracted. This link mechanism (13) is expanded and contracted by a four-point link along the rolling operation direction of the reaping device (3), and provides great resistance to expansion and contraction, rotation, twisting, etc. in other directions. This makes it difficult for the reaping device (3) to swing significantly relative to the working machine frame (2).

During rolling operation, when the reaping device (3) is controlled to roll to the left, the cam (
The lower part (d) of 42) is slidably opposed to the arm (43), and the starting end side of the grain culm transfer device (10) is connected to the collecting section (39).
It is adjusted so that the handling depth into the threshing bag N (9) is shallow. Furthermore, when the reaping device (3) is controlled to roll to the right, the high portion (E) of the cam (42) comes into sliding contact with the arm (43), moving the starting end side of the grain culm transfer device (10) to the collecting section. (39), and adjust the handling depth to be deep. In this way, the reaping device (3
) is rolled left and right, the grain culm inheritance relationship between the reaping device (3) and the grain culm transfer device (10) is adjusted to make the handling depth to the threshing device (9) constant.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a partial plan view, Fig. 2 is a side view, Figs. 3 to 6 are front views showing the operation, and Fig. 7 is a partial plan view. Fig. 8 is an enlarged front view, Fig. 8 is a side view, Fig. 9 is a partial plan view, Fig. 10 is a partially exploded rear view, Fig. 11 is a side sectional view, and Fig. 12 is a hydraulic circuit diagram. It is. In the figure, (1) is the vehicle body, (2) is the work equipment frame, (3) is the reaping device (work equipment), (4) is the work frame, (5) (6)
is a rolling metal, (7) is a parallel detection mechanism, (8) is a rolling device, (9) is a threshing device, (10) is a grain transfer device, (11) is a rolling shaft, (12) is a rolling cylinder, ( 13) is a link mechanism, (14) is a contact surface, (15) (1B) is a guide part, (17) is a traveling device, (24) is a grain culm rake device, (25) is a cutting blade device, ( 2
6) is the lifting cylinder, (32) is the horizontal sensor, (34)
is a rolling valve, (3B) is a limit switch, (37) is a cam surface, (38) is a parallel valve, (38)
indicates the collection and delivery section.

Claims (1)

[Claims] A rolling device (8) that rolls the reaping device (3) horizontally with respect to the vehicle body (1) by tilting the vehicle body (1) from side to side, and transfers the grain culm harvested by the reaping device (3). Reaping with a combine harvester is performed by controlling a grain transfer device (10) that feeds the grain culm to the threshing device (9) with an adjustable handling depth while keeping the change in handling depth due to rolling within a certain range. Grain culm transfer device.