JPS62275608A - Reaping part rolling 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 Field of the Invention The present invention relates to a reaping section rolling device for a combine harvester.

Conventional technology A reaping device having a collection device for collecting and transporting reaped husk culms is rolled with respect to a traveling vehicle body, and a device located between the reaping device and the threshing device takes over and transfers the reaped and collected husks. A configuration is known in which a shell culm transfer device that transfers and supplies grains to a threshing device is moved in the direction of the culm, and the handling depth to the threshing device is controlled by 2 gfW1 by changing the receiving position from the collecting device.

Problems to be Solved by the Invention In the above-mentioned handling depth control, the control range of the grain transfer device is determined based on practical limits, and the movement in the culm direction due to this control is set to be wide. This may cause problems such as interference with other components, so when this culm transfer device reaches a predetermined control range, this is detected and the controlled movement does not exceed this range. Configure it as follows.

In addition, when the reaping device is subjected to rolling control, the terminal end of the culm collecting and conveying device that collects and transports the reaped culms is difficult to coincide with the center position of the rolling axis of the reaping device, and therefore, depending on the rolling angle of the reaping device, The transfer position of the cut culm from the collection device to the culm transfer device is easily changed.

In such a configuration that combines the rolling control device of the reaping device and the handling depth control device of the culm transfer device, handling depth control may be difficult if the culm is extremely short or long compared to the standard grain culm length. There are cases where it is difficult to do it adequately.

For example, if the harvested culm is a short culm, the culm will be moved to the lower limit position when the culm is transferred by holding the front end of the culm transfer device or the base of the plant in order to maintain the handling depth at a constant depth. . At this time, when the traveling vehicle body is tilted and this reaping device is rolled greatly and placed in a horizontal position, the terminal end of the collection device becomes separated downward from the starting end of the husk culm transfer device. In order to control the handling depth at the joint of the culm, the collecting and feeding device is rolled in the direction to make the handling depth shallower, so the handling depth in the threshing device becomes shallower, making it easier to adjust the handling depth for short culms. It becomes insufficient. In addition, if the reaped husk culm is a long culm, if the joint at the end of the collection device is rolled in the direction of increasing the handling depth by rolling control of the reaping device, the handling depth will be the desired handling depth. It will not become shallow and will be limited.

Means for Solving the Problems This invention provides a reaping device (2) having a collection device (1) for reaping and collecting the husks, and a threshing device N that inherits the harvested husks.
(3) and a culm transfer device (4) that transfers and supplies the culm to the culm, and changes the inheritance position in the culm direction of the reaped culm that is inherited from the collection device (1) of the culm transfer device (4). A processing depth control device (5) that adjusts and controls the supply processing depth to the threshing device (3).
)and.

The upper limit of movement of this culm transfer device (4) toward the tip side and the lower limit of movement toward the stock head side are detected, and the handling depth control device (5) controls the handling depth beyond these limit positions. An upper limit sensor (6) and a lower limit sensor (7) for stopping the movement are provided to detect the horizontal inclination of the traveling vehicle body (8) on which the reaping device (2), threshing device (3), etc. are mounted. Reaping device (
A rolling control device (9) for rolling the reaping device (2) in a horizontal position with respect to the traveling vehicle body (8) is provided, and the reaping device (
The culm transfer device (4) in which the collecting and feeding device (1) section of 2) is at the detection position by the upper limit sensor (6) or the lower limit sensor (7)
) is further moved in a direction exceeding these limit positions, thereby canceling the upper limit sensor (6) or the lower limit sensor (7), thereby creating a reaping section rolling device of a combine harvester.

Effect of the Invention The husk harvested by the reaping device (2) is collected by the collecting device (1), transferred to the culm transfer device (4), and then transferred and supplied to the threshing device (3) for threshing. .

When the processing depth of the tip of the shell culm supplied to the threshing device (3) by the shell culm transfer device (4) becomes shallow from a certain area, the handling depth control device (5) Device (4)
is moved relative to the collecting and feeding device (1) and controlled in the direction of deep feeding to maintain the handling depth within a certain range. In addition, when the culm needs to be handled deeply, the feed is controlled to be fed shallowly to maintain it within a certain range.

In such handling depth control, a shell culm transfer device (
When the handling depth of 4) is greatly controlled in the direction of shallowing, if the upper limit sensor (6) detects this, this shell culm transfer device (4)
Further depth control in the shallow direction is stopped. or,
When the handling depth is largely controlled in the direction of increasing the depth when the culm is short, the further depth control is stopped upon detection of the lower limit senna (7). When carrying out handling depth control that exceeds the upper limit or lower limit, the detection of the upper limit sensor (6) or lower limit sensor (7) may be switched so as not to be moved.

When the traveling vehicle body (8) is integrated with the reaping device (2) and tilts to the left or right side, the rolling control device (9) is activated, and this tilting of the reaping device (2) with respect to the traveling vehicle body (8) side is activated. Roll to the opposite side and control into a water shooting position. When the angle of this rolling control becomes large and the shell culm transfer device (4) is adjusted to the deep limit position when the culm is shortened until it is detected by the lower limit sensor (7),
When the collecting and feeding device (1) using rolling control is moved to the side where the handling depth is made shallow at the joint to the shell culm transfer device (4), regardless of the detection by the upper limit sensor (6), This culm transfer device (4) is controlled to move in the direction of increasing the handling depth beyond this upper limit position, thereby adjusting the short culm to an appropriate handling depth.

Conversely, when the collecting device (1) by rolling control is moved to the side where the handling depth is increased while the movement is being adjusted to the shallowing limit position detected by the upper limit sensor (6). Regardless of the detection by the upper limit sensor (6), the culm transfer device (4) is controlled to move beyond the lower limit position to reduce the handling depth, and the long culm is moved to an appropriate handling depth. Adjust to

Effects of the invention As described above, when harvesting a culm of a normal culm length, the culm transfer device (
The controlled movement by the handling depth control device (5) of 4) is limited within certain limits by the upper limit sensor (6) and the lower limit sensor (7), etc., but the rolling control device (9) of the reaping device (2) When the rolling control is large and contradicts the direction of the handling depth control by the handling depth control device (5),
By temporarily lifting the movement restriction of this culm transfer device (4) and controlling the handling depth beyond the limit, it is possible to eliminate the adverse effects of rolling control and perform smooth and accurate reaping transfer and threshing processing. .

Embodiment In the illustrated example, the combine harvester has a running vehicle body (8) having a crawler-type running device (1o), and a control device (
+1), a threshing device (3), a reaping device (2), a culm transfer device (4), and a prime mover. Running vehicle body (
A traveling transmission case (12) containing a transmission device for transmitting the traveling device (10) is provided at the front of the reaping device (2). (14) is provided rotatably around a horizontal lifting shaft (15), and is attached to the left and right center of the reaper frame (16) of the reaping device (2) with respect to the lower end of this mounting frame (14). Rolling metal (1
7) By (18), these rolling metals (
17) and (18) are provided so as to be freely rolling around a rolling shaft (19) provided along the front-rear direction.

The lower end of this mounting frame (14) is attached to the horizontal frame (20
), and an arm (21) extends forward from this horizontal frame (20).
) is integrally provided, and this arm (21) and the traveling vehicle body (8
) is provided with a bending link (22) between the traveling vehicle body (
8) and a lifting cylinder (2) which is extended and contracted by hydraulic pressure.
3), and by expanding and contracting this elevating cylinder (23), the bending link (22) is expanded and contracted, and the mounting frame (14) is elevated.
It is configured to be able to move up and down around the l-axis (15).

The rolling metal (17) (18) is the mounting frame (1
4) A rolling sliding surface (24) that intersects with the vertical direction C is formed and faces the front downward slope, and this mounting frame (
14) to the reaper frame (18), a transmission shaft is provided inside the pipe, and the power received on the horizontal shaft (15) is transmitted to each part of the reaping device (2). The rolling shaft (1) of this rolling metal (17) (18)
3) is provided close to the left side of the mounting frame (14) in the direction of movement of the aircraft, and is provided horizontally in the front and rear directions orthogonal to the sliding surface (24).

A reaper frame (16) is connected to the outer side of the rolling shaft (19) of the rolling metal (17) (18) through a four-point quadrilateral link mechanism (25) between the arm (21) and the arm (21).
an arm (21) on the opposite side of the linkage mechanism (25), which is connected to and guides the rolling of the reaping device (2) around the rolling axis (19) in a constant trajectory;
A rolling cylinder (26) whose expansion and contraction are controlled by hydraulic pressure is provided between the reaper frame (16), and the expansion and contraction of this rolling cylinder (26) causes the reaping device (2) to roll around the rolling axis (19). It is the composition.

The reaping device (2) moves from the reaping machine frame (16) to the weeding rod (27).
), supporting and protruding the culm lifting device (28) etc. to the front,
There is a cutting blade device at the bottom! (2!3) is provided, and a raking device (30) for raking and guiding the reaped culm is provided from above to the front of this cutting blade device (29), and the raking device (30) is provided to guide the reaped culm from the center toward the rear upper part. A collection device 2i (
1), and the rear end (31) of this collecting and conveying device (1) is
The rolling metal (17) (+8) is provided so as to go to the rear side through the left side of the rolling shaft (19) portion. (32) is a horizontal sensor, which is provided in a part of the reaping device (2) and detects the tilted state of the reaping device (2) in the left-right direction.

This horizontal sensor (32) is interlocked to switch the rolling valve of the hydraulic circuit, and expands and contracts the rolling cylinder (2B).When the reaping device (2) is tilted beyond a predetermined angle, the horizontal sensor (32) ), the rolling cylinder (2B) is expanded and contracted to roll the reaping device (2) in a direction opposite to the inclination direction to bring it into a horizontal state. It is set up.

The culm transfer device (4) includes a stock transfer device (33) that grips and transfers the stock base of the shell culm, and a tip transfer device that engages and guides and transfers the tip side of the transfer culm with a lug. Equipment (34
), and these retransfer devices (33) (34)
It has a single-weight structure, and the rear end side is rotatable around the lifting shaft (15), so that power can be transmitted from the lifting shaft (15) of the bracket. The front end of this shell culm transfer device (4) is positioned above the rear end (31) of the collecting device (1) to inherit the shell culm collected and transported by this collecting device (1). The structure is such that the material is transferred to the rear upper part.

This shell culm transfer device (4) is configured to be rotationally controlled around a lifting shaft (15) by a control motor (35).

The support frame of the culm transfer device (4) is moved to the rod (3B) by the shaft of the control motor (35) attached to the bra (13).
It is connected with. Further, (37) is a handling depth sensor, which is provided opposite to the transfer path of the tip of the shell culm of the shell culm transfer device (4), and detects the position of the tip of the shell culm to be transferred, ) is used to measure the feeding depth of the tip of the shell culm. This handling depth sensor (37) and control motor (
35), when the tip of the grain culm is at the appropriate handling depth position, the culm transfer device (4) does not move up and down, but when the tip of the culm is at the handling depth sensor ( If the handling depth is too shallow due to being located below the control motor (37), the control motor (3
5) to rotate the shell culm transfer device (4) downward to collect and transport the device! The holding position of the culm from (1) is moved closer to the stock side, and conversely, if the handling depth is too deep due to the tip position being too high according to the handling depth sensor (37), the control motor (
35) to rotate the shell culm transfer device (4) upward;
Move the holding position of the culm closer to the tip side to control the feeding position for proper handling depth! A handling depth control device (7) is configured in such a manner as to maintain the depth.

The upper limit sensor (6) and the lower limit sensor (7) limit the movement range of the shell culm transfer device (4) for controlling the handling depth, and are detected by directly contacting the movement range of the shell culm transfer device (4). However, the rotation angle of the culm transfer device (4) may be detected by a potentiometer or the like, or the rotation angle of the shaft in the control motor (35) may be detected. Alternatively, when the upper limit sensor (6) detects the rotating position of the culm transfer device (4), the control motor (35) stops rotating and moves upward further to the shallow handling side. Electrically controlled to limit control. or,
The lower limit sensor (7) is similarly provided to limit movement control of the shell culm transfer device (4) toward the handling depth side.

Further, the upper limit sensor (6) and lower limit sensor (7) are connected to the horizontal sensor (32) or the traveling vehicle body (8) of the reaping device (2).
By detecting rolling against or beyond a predetermined range of rolling angle, and by this rolling, the rear end (31) of the collection device (1)
When moving in the downward direction, either cut off the detection operation of the lower limit sensor (7) or control beyond the detection position by this lower limit sensor (7) even if detection is performed by this lower limit sensor (7). In addition, when the terminal end (3J) of the collecting and conveying device (1) moves in the upward movement direction, the control of the upper limit sensor (6) is similarly cut off. are doing.

The threshing device (3) is a culm transfer device! A culm supplying device (38) for pinching and transferring the stock part of the culm is installed on the side of the threshing room which is located behind (4) and houses the threshing drum, and is transferred by the culm transfer device (4). This system inherits the stock base of the shell culm, and threshes the grain by feeding the tip into the threshing chamber from the front supply opening to an appropriate depth.

In addition, (39) is the culm lifting device (2) of the reaping device (2).
8) covering the outer side of the rear collecting and conveying device (1), and the rear end of this side cover (39) is provided with an outer side of the link mechanism (25). A link cover (40) is provided to cover the upper side, and a tip guide cover (41) is provided on the upper side of the collecting and feeding device (1) and the raking device (30) to guide the tip of the culm to be harvested and collected. and said side cover (39).

It has an integral structure with the link cover (40) and the like.

In addition, in FIGS. 7 and 8, the arm (21) at the tip of the horizontal frame (20) and the pin (42) protruding from the bending link (22) are detachably connected, and the reaping device (
2) may be configured to be detachable from the lifting shaft (15). The arm (21) has a fitting part (43) that opens downward.
), and the pin (42) of the bending link (22) is fitted into the fitting part (43) from below, and the fitting part (43) is fitted into the fitting part (43) from below.
43) can be stopped by closing the opening with a stop bottle (44).

In the combine harvester operation, the culm guided to the weeding frame (27) is
The culm is raised by the culm lifting device (2B), and the culm is raised by the culm lifting device (3B).
0) to the rear, the cutting blade device (29) cuts off the base of the stock, and the collecting device (1) collects and transports the plant to the rear. At the rear end (31) of the collecting and feeding device (1), the upper part of the culm is transferred to the culm transfer device (4) and transferred to the rear upper part.

From the rear end of this husk transfer device (1), the husk supply device (38) of the threshing device (3) takes over the stock head portion, is transferred and supplied to the threshing device (3), and the tip portion is threshed. The grain is threshed while the grain is transported to a room of an appropriate depth.

In a flat field with a hard soil surface, the traveling device (10)
Since the horizontal inclination of the harvester (2) is small, and therefore the inclination of the combine is also small, the rolling control of the reaping device (2) is small, and the control switch may be turned off so as not to perform rolling control.

When the harvested husk culm is a long culm, the handling depth in the threshing device (3) tends to be deep, so this is controlled by the handling depth control device (7).
control to maintain a constant depth without increasing the depth. In the case of long culms, the tips of the transferred culms in the culm transfer device (4) protrude long upwards, so this is detected by the handling depth sensor (
37), it drives the control motor (35) to move this culm transfer device (4) upward. As a result, the position of the grain culm from the collecting and feeding device (1) of the grain culm transfer device (4) changes to the side of the grain tip. This will continue to be seen by stockholders for a long time. In this way, the control motor (35), which detects the predetermined length by the handling depth sensor (37), is stopped to maintain the predetermined handling depth.

Conversely, if the culm is short, use the grain culm transfer device N (4) in the same way.
is moved downward to move the inheritance position of the grain culm closer to the plant base side and to lengthen the ear tip toward the handling depth sensor (37), thereby attempting to maintain the handling depth at a predetermined level.

In such treatment depth control, when the culm length becomes extremely long or short, the controlled movement of the culm transfer device (4) is detected by the upper limit sensor (6) or the lower limit sensor (7). There is. At this time, when the upper limit sensor (6) detects this, the upward movement of the culm transfer device (4) is stopped at this upper limit detection position. Also, when the lower limit sensor (7) detects,
It is stopped at this detection lower limit position. Therefore, even if the shell culm transfer device (4) continues to control the handling depth between these upper and lower limit sensors (6) and (7), the handling depth control that exceeds these is not performed. When performing control that exceeds the limit position, adjust the reaping device (2) upwardly using the lifting cylinder (23) to increase the reaping height of the culm, or
Alternatively, the control interlocking of the upper and lower limit sensors (6) and (7) may be cut off and the handling depth W may be manually operated.

If the field is soft and the tiller is extremely uneven, use the traveling device (
10) sinks and the traveling vehicle body (8) tilts to the left and right. When the inclination at this time exceeds a predetermined level (Fig. 3), the horizontal sensor (32) detects this and controls the reaping device (2) to roll around the rolling axis (19) relative to the traveling vehicle body (8). , the robot is controlled to a horizontal position as shown in FIG. Such rolling control is performed not only for the right side inclination as shown in FIG. 3, but also for the left side inclination on the opposite side. The reaping device (2) is parallel to the soil surface and does not plunge into the soil surface, nor does it change the cutting height on the left and right. ), the clamping interval of the culm transfer to the culm transfer device (4) changes in the culm direction. Culm transfer device (4
) is at the rear end.

Since the rolling axis (19) is deviated to the left, when the reaping device (2) rolls to the left with respect to the traveling vehicle body (8), it becomes separated downward from the culm transfer device (4). , and roll to the right side to the upper culm transfer device (4)! It's getting closer.

When harvesting long culms, the upper limit sensor (
6) may move, but when the reaping device (2) is rolled to the right by the rolling control, the handling depth restriction by this upper limit sensor (6) is released, and the culm transfer device (4) The board is controlled in the direction of shallowing the board beyond the upper limit position, and therefore, the handling depth of grain culms that are too long is controlled and the board is properly controlled.On the other hand, when reaping short culms, the lower limit sensor (7) When the reaping device (2) is rolled to the left by the rolling control, the cutting depth restriction by the lower limit sensor (7) is canceled and the cutting depth control is performed to exceed the lower limit position.

[Brief explanation of the drawing]

The figures show an embodiment of the invention, and Figure 1 is a side view;
Figure 2 is a partial plan view, Figures 3 and 4 are front views showing the operation, Figure 5 is a partially enlarged side sectional view, Figure 6 is a front view, and Figure 7 is a partial view. Enlarged side view showing another embodiment of
The figure is a plan view thereof. In the figure, code (1) is a collection device, (2) is a reaping device, and (3
) is a threshing device, and (4) is a culm transfer device. (5) is a handling depth control device, (6) is an upper limit sensor, (7) is a lower limit sensor, (8) is a traveling vehicle body, and (9) is a rolling control device.

Claims (1)

[Claims] A reaping device (
2), and a husk transfer device (4) which inherits this harvested husk culm and transfers it to the threshing device (3). A handling depth control device (5) that adjusts and controls the inheritance position of the harvested husk culm in the culm direction to adjust and control the supply handling depth to the threshing device (3), and this husk culm transfer device (4). an upper limit sensor (6) that detects the upper limit of movement toward the tip side and the lower limit of movement toward the stock head side and stops the depth control movement of the depth control device (5) beyond these limit positions; and a lower limit sensor (7) to detect the horizontal inclination of the traveling vehicle body (8) on which the reaping device (2), the threshing device (3), etc. are mounted, and to move the reaping device (2) to the traveling vehicle body. (8) is provided with a rolling control device (9) that rolls in a horizontal position, and the collecting and feeding device (1) section of the reaping device (2) is detected by the upper limit sensor (6) or the lower limit sensor (7). These upper limit sensors (6) are controlled by rolling control to further move the shell culm transfer device (4) in the position beyond these limit positions.
Alternatively, the reaping section rolling device of a combine is formed by canceling the lower limit sensor (7).