JPS6265621A - Threshing handling depth controller 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 threshing depth control device for a combine harvester.

[Prior art] In order to control the feeding depth or handling depth of grain culms in a threshing device to maintain an appropriate state,
A handling depth detection sensor is provided to detect the handling depth of the grain culm to be transferred and supplied to the threshing device, and the grain culm should be transferred and supplied to the threshing device by this handling depth detection sensor via a control motor such as a servo motor. The grain culm transfer device is configured to be interlocked to move and adjust the transfer and supply position of the grain culm transfer device.

Problems to be Solved by the Invention Since the depth at which the harvested grain culm of a combine harvester is fed to the threshing device changes depending on the reaping height, the grain culm transfer process until the harvested grain culm is supplied to the threshing device changes. In this method, a grain culm transfer device is provided between the harvested grain culm collecting and conveying device in the reaping device and the grain culm supply device in the threshing device to change the transfer point of the transferred grain culm and perform the transfer. In such a configuration, when adjusting the movement of the grain transfer transfer device using a control device such as a servo motor, it is difficult to perform uniform and accurate movement adjustment over the entire movement adjustment range, and it is difficult to adjust the movement over the entire movement adjustment range. It is difficult to establish a control interlocking configuration for the adjustment range.

Means for Solving the Problems This invention provides a threshing device (3) that inherits grain culms that can be harvested and collected by a reaping device (2) that is raised and lowered relative to a traveling device (1).
Grain culm transfer device (5) to be transferred to the grain culm supply device (4) of
), the interval between the joints of the reaping device (2) and the grain culm collection device (6) in the culm direction can be freely adjusted to expand or contract, centering on the transfer end side of the grain culm takeover and transfer device (5). This grain culm takeover and transfer device (5) is operated by a grain culm extraction method detection sensor (7) and a control motor (8) that control the feeding depth of grain culm to the threshing device (3) to stop it. , the adjustment rotation rail (10) of the interlocking mechanism (9) is rotated over a certain rotation angle and supports and guides and rotates the grain culm transfer transfer device (5). (lO) [[11
A combine harvester formed of a base guide surface (11) extending approximately 10 lines from the moving center and a tip guide surface (12) bent from the base guide surface (11) toward the scooping side. This is the configuration of a threshing method control device.

Effect of the Invention Grain culms harvested by the reaping device ti (2) are collected by the collecting device (
6), and is transferred to the grain culm transfer device (5), which is further transferred to the grain culm supply device (4), and then transferred to the threshing device (3). The grain is supplied and threshed. The thresher detection sensor (7) detects this threshing device (
3) determines whether the feeding depth on the tip side of the grain culm is as set. If the feeding depth of the grain culm, that is, the handling depth is too long, the control motor ( 8) and transfer the grain through the interlocking mechanism (9) W! 1(
5) in a direction away from the collection device (6), and on this transfer transfer, move the position where the inherited grain culm from the collection device (6) is held by F1 (5) to the tip of the ear. Then, the clamping and transferring position of the grain culm to be transferred by the grain culm feeding device (4) is similarly moved, and the feeding position of the grain tips to be threshed by the threshing device (3) becomes shallower and becomes an appropriate position. Become.

On the other hand, if the handling depth of the grain culm is too shallow, the feeding position of the tip of the grain in the threshing device (3) is controlled to become deeper by the operation opposite to the above, thereby causing a change in the short culm. Of course, when the grain is harvested, the reaping height of the grain culm may change due to changes in the uneven surface of the soil, hardness, etc. For example, if the reaping height of the grain culm increases due to the reaping device (2) being raised, the cutting method may change as a result. Under grain culm reaping, the culm length from the lower end of the harvested grain culm to the tip of the grain becomes shorter. In addition, in this case, the grain culm transfer and transfer device (5) is in the same position as the traveling device (1), and the reaping device N (2) is raised, so that the distance between the two (5) and (2) is reduced. If this is the case,
The gripping position of the grain culm due to this inheritance hardly changes from the position on the ear tip side. Therefore, as a result of this, the handling depth ultimately changes from the position within the appropriate range to become either too deep or too shallow, and the above-mentioned control adjustment is performed.

When the soil surface is wet and soft soil, the traveling device (1) sinks and, under the influence of the driving reaction force caused by the traveling driving force, the combine harvester body tends to tilt so that the rear side is downward and the front side is floating. It is in. In such cases, use the reaping device (
2) may have to be placed in a position lower than the lower limit position of the cutting height on the normal traveling soil surface with respect to the traveling equipment M(1). The grain culm takeover and transfer device (5) is in a state where the guide part is located at the bent part of the base guide surface (11) from the tip guide surface (12), so it cannot be lowered from this point or in such a state. If the grain culm handover transfer device (
The adjustment control rotation by the interlocking mechanism (9) in 5) has a small angular velocity and is performed slowly compared to the adjustment control rotation in the normal range during normal reaping as described in -I-. be.

Effects of the Invention When the grain culm transfer and transfer device (5) supported and guided by the adjusting rotating rail (10) is adjusted and moved in the threshing process by rotating the adjusting rotating rail (10) as described above, this adjusting rotating rail (10) is used. 10)
from the base guide surface (11) on the rotation base side to the tip guide surface (1)
2), this tip guide surface (1
The rotational adjustment range of the grain culm transfer transfer device (5) guided by the grain culm transfer device t(5) can be set large, and the adaptive adjustment range from short culm to long culm can be widened. ) at the lowest limit position at the bending part so as not to rotate below this, or even if it is in a form where it rotates below this, this rotation should be made slowly. This prevents the threshing depth adjustment from causing an extremely deep handling condition.

Embodiment In the illustrated example, a combine harvester has a threshing device (3) mounted on a chassis (13) having a crawler-type traveling device (1), and a prime mover, a control device (14), etc. are installed on the side of this. , the reaping device (2) facing the front part of the threshing device (3)
A grain culm transfer device (5) and the like are provided.

The threshing device (3) is a grain culm feeding device (
4), the tip of the grain IIi+, which clamps and transfers the stock part, is fed into the threshing chamber and threshed. The extraction detection sensor (7) is located in front of the grain supply port of the threshing device (3), detects the tip position in contact with the grain culm being transferred and supplied, and thereby turns the limit switch on and off. It is important to control the switch of the control motor (8).

The reaping device (2) is provided with a part of the rear end of the reaping machine frame (17) rotatable around a horizontal axis (18) with respect to the upper end of the transmission case (18), and attached to the chassis (13). On the other hand, it is provided to be moved up and down by a hydraulic telescopic cylinder (20). A clipper-shaped cutting blade device (2) is attached to the lower end of this reaper frame (17).
1), and a collection device (6) that collects grain culms while collecting them and transfers them to the rear side is attached to the upper side of the collection device (6), which is connected to a lug belt (22).
, a transfer chino (23), etc., and the cutting blade device (21
), and the stock base of this harvested grain culm is further transferred to a cheno (
23). In front of these, a weeding frame (24), a grain culm pulling device (25), etc. are provided, and the grain culm guided by the weeding frame (20) is pulled up and guided to a certain upright posture by the grain culm pulling device (25). It is something to do.

The grain culm takeover and transfer device (5) is installed in a transmission case (2B) that is rotatable around the horizontal axis (19), and has a stock transfer device (27) on the lower side that includes a transfer chenna and a clamping rod. established,
The upper part is composed of an ear guide device (28) that rotates a chain with a lug to engage and guide the tip of the grain culm, and the rear end side is rotated around a horizontal axis (19). The front end portion is provided such that the vertical distance can be freely adjusted with respect to the rear end portion of the collecting and feeding device (6). This grain culm transfer transfer device (5)
may be configured so that it can be moved up and down integrally with the rotation of the reaper frame (17) up and down, and can also be moved down -L independently. The reaping device (6) and the grain culm takeover and transfer device may be configured to be able to rotate only independently without any relation to each other. (5), etc. may be configured to transmit power through the horizontal shaft (19) at the end of the reaper frame (17)-h. The rear end of the grain culm transfer bag M(5) is provided in such a relationship that the stock base portion of the grain culm is transferred to the front end of the grain culm supply device (4) of the threshing bag M(3).

An adjustment rotation rail (10) is provided at an appropriate position below the horizontal shaft (19) of the transmission case (18) so as to be movable up and down by a shaft (29), and is integrated with this adjustment rotation rail (10). The arm (30) is attached to the tip of the crank arm (31) of the control motor (8), and a telescopically adjustable rod (32) is connected to the end of the crank arm (31) of the control motor (8).
The crank arm (
31) is interlocked so that the adjustment rotation rail (lO) can be moved up and down within an appropriate angular range by the reciprocating rotation of the adjustment rotation rail (lO). The adjustment rotation rail (10) has its upper surface bent upward to form a shaft (29).
) side of the base guide surface (11) and the distal end side of the distal guide surface (11).
12). The bending position of this tip guide surface (12) is set at the lowest position to which the grain culm takeover and transfer device (5) by the support roll (33) guided by it should be adjusted when short culm is produced in the normal reaping state. , and the tip guide surface (
12) is set at the uppermost position where the grain culm takeover and transfer device (5) guided and moved from this bending position should be adjusted in the case of a long culm, and is formed in a face shape from these bending positions to the tip. . The control motor (8) is provided on the machine body side below the grain culm transfer and transfer device (5). Also, this control motor (8)
Alternatively, an adjustable pivot rail (10) may be provided on the reaper frame (17).

The harvested grain culm is held and transferred by the transfer cheno (23) of the collection device (6), and the 0-plant part that is transferred to the grain culm transfer device (5) is held by this stock transfer device (27). be transported. From the terminal end of the grain culm takeover and transfer device (5), the stock head is sent to the starting end of the transfer cheno (15) and pincer rod (16) of the grain culm supply device (4), and the ear tip is supplied. It is supplied into the threshing chamber from the mouth.

At this time, the removal detection sensor (7) detects the position of the tip of the supplied grain culm, and the threshing bag f? ! (3) If the feeding depth, that is, the handling depth is too deep, rotate the control motor (8) and rotate the adjustment rotation rail (10) upward around the shaft (27). , the support roll of the grain culm takeover and transfer device (5) (
33) is rotated upward about the horizontal axis (19) to move the grain culm takeover and transfer device (5) away from the collection device (6), and this collection device The gripping position of the grain culm inherited from (6) is moved and adjusted toward the tip of the grain, and the handling depth when transferred and supplied to the threshing bag M (3) is controlled to be maintained in an appropriate state.

In addition, when the handling depth detected by the removal method detection sensor (7) is too shallow, the adjustment rotation rail (lO) is rotated downward, and the support roll (33) supported by this is rotated downward. The part guide surface (12) is moved to the bending part side, the grain culm transfer device (5) is moved down, the grain culm transfer length from the collection device (6) is lengthened, and the threshing bag N is moved. The handling depth in (3) is maintained and controlled to an appropriate state.

The relationship between the rotation of the adjustment rotation rail (10) and the resulting rotation of the grain culm transfer and transfer device (5) supported and guided by the tip guide surface (12) is as follows: lO)
Since the rotation angle of the grain culm transfer transfer device (5) is larger than the rotation angle of the grain culm transfer device (5), it is possible to maintain a wide handling depth adjustment range.

In addition, if the running soil is soft and the running device (1) tends to sink, the reaping device (2) will float upward due to this drive reaction force, so this should be corrected to an appropriate cutting height. In order to maintain this reaping device (2), a telescopic cylinder (20)
At this time, even if the grain culm transfer and transfer device (5) is moved down together with the reaper frame (17), the support roll (33) is lowered by the tip guide surface. (12) and the base guide surface (11), the support roll (33) is locked to this bend and movement below this point is stopped.

Moreover, even if the support roll (33) is further guided by the base guide surface (11) and can be lowered, the support roll (33)
) will decrease.

In addition, the crank arm (31) is controlled by the control motor (8).
If the support roll (33) is set to be located at the bend between the tip guide surface (12) and the base guide surface (11) when the support roll (33) is at the bottom dead center rotation position, the support roll (33) will be moved to the lower limit. It can be locked at this bent position.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, with FIG. 1 being a partially enlarged side view and FIG. 2 being a side view. In the figure, code (1) is the traveling device, (2) is the reaping device, and (3
) is a threshing device, (4) is a grain culm supply device, (5) is a grain culm transfer and transfer device, (6) is a grain culm collection device, (7) is a grain culm removal method detection sensor, and (8) is a control Motor, (9) is interlocking mechanism,
(lO) is the adjustment rotation rail, (11) is the base guide surface, (
12) shows the tip guide surface.

Claims (1)

[Claims] Grain culm handover and transfer device (5) that inherits grain culms that are harvested and collected by a reaping device (2) that moves up and down relative to the traveling device (1) and transfers them to the grain culm supply device (4) of the threshing device (3). The interval between the joints of the reaping device (2) and the grain culm collection device (6) in the culm direction is freely adjustable, centering on the transfer end side of the grain culm transfer and transfer device (5); This grain culm takeover and transfer device (5) is rotated in a constant manner by a grain culm handling exploration sensor (7) and a control motor (8) that control the grain culm supply depth to the threshing device (3) to be constant. an adjustment rotation rail (10) of the interlocking mechanism (9) which is rotated over an angle and supports and guides and rotates the grain culm transfer and transfer device (5);
The adjustment rotation rail (10) has a base guide surface (11) that is substantially straight from the center of rotation, and a tip guide surface (12) that bends from the base guide surface (11) toward the scooping side. A threshing depth control device for a combine harvester.