JPS6349167Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improved bundling culm discharge device in a combine harvester.

[Conventional technology and problems]

Conventionally, this type of bundled culm release device was developed in 1973-
As disclosed in Publication No. 23983 and Japanese Unexamined Patent Application Publication No. 142355/1983, similar to the dropper mechanism that collects and releases unbound culms, the culms in the receiving state are When a set weight of culms is accumulated, the culm assembly rotates downward against the elasticity of the springs, and the group of accumulated and bound culms is released onto the ground.

According to such a device, the bundled culms on the culm collection are affected by the impulse of the bundled culms that are dropped onto the culm collection and the vibration of the traveling combine harvester due to unevenness in the field. When the vertical rolling shock of the group is applied to the culm aggregate, it has been observed that the aggregated bundled culm group is often ejected before the weight of the bundled culm group on the culm assembly reaches the set weight.

In this way, the fact that less than a predetermined number of bundled culms are released means that the number of bundles released into the field is insufficient to stand up on the field in a conical shape so that they lean against each other and dry. This may result in additional work being required, such as having to resupply from other locations. Furthermore, with conventional devices, the weight per bundle varies depending on the culm length, making it impossible to collect the desired number of bundles, and it is necessary to adjust tension such as springing each time according to field conditions and culm length. Even so, it was difficult to collect a certain number of abandoned bundles.

[Means for solving the problems] The structure of the present invention to solve the problems of the prior art is as follows:
From the bundled culm discharge part of the bundled culm bundling device installed at the rear of the aircraft, the bundled culms are sequentially transported and accumulated on the culm collecting body by a carrier in a substantially horizontal position, and the bundled culms are released to the ground at the appropriate time. In the bundled culm discharge device for a combine harvester, the upper part of a mounting plate in a substantially vertical position is connected to a frame for suspending the transport body, and the upper end of the mounting plate projects upwardly from the transport body,
It pivots the middle part of the sensing arm, which is pushed by the transported bundled culm, rotates, and automatically returns.
An adjustment rod that abuts below the pivot point of the sensing arm and adjusts the return stroke of the sensing arm is horizontally movably fixed to the mounting plate, and one side of the upper part of the mounting plate is attached to the A rotary action body (ratchet gear) is attached to the frame of the body so as to be able to rotate upwardly, and is provided on the mounting plate to rotate a set angle by repeating the return rotation stroke of the sensing arm. A bundled culm consisting of an interlocking arm that swings during rotation and that releases the receiving rod of the collection shaft that engages with the lower end from the bundled support posture of the bundled culm to a release posture and then maintains the support posture again. The present invention is characterized in that a discharge device C is provided, and the culm aggregate D is disposed at the lower end of the discharge device C.

〔Example〕

To explain the embodiment of the present invention with reference to the drawings, A
is a combine main body, B is a binding device that is attached to the rear of the combine main body A and automatically and continuously binds the culms discharged from the threshing device (not shown) of the combine main body, and C is a tied culm according to the present invention. This is a release device.

The above-mentioned speed-linking device B is conventionally known, so its details will be omitted, but it includes a packer that scrapes the culm, a sensing door that detects the amount of culm scraping, and a needle that ties a binding cord to the culm that has been scraped in a certain amount. , there is a mechanism such as a knot that makes the binding string visible.
Furthermore, it comprises a discharge sweeper 1 for discharging the bundled culms to the outside of the machine.

Next, to explain the details of the discharge device C, 2 is a conveyance chain suspended between sprockets 3 and 3 in a substantially horizontal position, 4 is a pinching rail facing above the conveyance chain 2, and 5 is a conveyance chain suspended between sprockets 3, 3. The pinching rail 4
A spring that pushes down toward the conveying chain 2 side, 6
is a mounting plate for the culm assembly D constituting the above-mentioned discharge device C, which is in a substantially vertical position with its lower end inclined in the direction opposite to the traveling direction of the combine main body A, and a shaft 7 is fixed to the upper part of the mounting plate 6. A relatively large-diameter ratchet gear 8 is rotatably attached to this shaft 7, and a midway portion of a sensing arm 9 in a substantially vertical position is pivotably attached to the shaft 7. There is. As is clear from FIGS. 1 and 2, the upper end of the sensing arm 9 extends and projects above the pinching rail 4.

Further, a reversal prevention pawl 11 is engaged with the ratchet gear 8, which is pivotally supported on the mounting plate 6 and is pressed in one direction by a spring 10. The sensing arm 9 has a feed pawl 1 pressed in one direction by a spring 12.
3 is provided, the feed pawl 13 is engaged with the ratchet gear 8, and a spring 14 for automatic return of the sensing arm 9 is provided between the lower end of the sensing arm 9 and the mounting plate 6. has been set up.

15 is provided on the mounting plate 6 and the lid plate 6a detachably attached to the front surface of the mounting plate 6, and is formed on the mounting plate 6 and the lid plate 6a, as shown in FIG. This adjustment rod 15 is movably inserted into the horizontal guide hole 16.
is adapted to come into contact with the returning rotating side surface of the sensing arm 9, and can be fixed to the cover plate 6a with a tightening nut 16a.
By moving the sensing arm 9 in the left-right direction along the guide slot 16, the rotation stroke length of the sensing arm 9 can be adjusted to a larger or smaller extent, and the amount of rotation of the ratchet gear 8 can be adjusted as described later. be.

This mounting plate 6 is attached to the lower outer surface of the mounting plate 6.
A metal member 17 is provided so as to be substantially orthogonal to the plate surface, and a midway portion of a culm collecting shaft 18 constituting the culm collecting body D is mounted on this metal member 17. The culm collecting shaft 18 is provided with a plurality of fork-shaped receiving rods 20 for bundled culms facing the side of the combine main body A.

Further, a stopper 21 for holding the receiving rod 20 at a predetermined upward angle is provided on the culm shaft 18 portion facing between the mounting plate 6 and the lid plate 6a, and a stopper 21 is provided between the stopper 21 and the mounting plate 6. A spring 22 for returning the culm shaft 18 and the receiving rod 20 is elastically installed between them. Reference numeral 23 denotes an interlocking arm in a substantially vertical posture with its central portion pivoted on the mounting plate 6. At the upper end of this interlocking arm 23, an operating portion 24 facing the outer circumferential surface of the ratchet gear 8 is formed. A pin 25, which is implanted in the pin 8 and rotates the interlocking arm 23, faces the pin 25 so as to be removable.

The action portion 24 of the interlocking arm 23 is connected to a pin 2 provided on the ratchet gear 8 between the portion above the pivot point of the interlocking arm 23 and the mounting plate 6.
A spring 26 for biasing rotation in the direction 5 is provided. In addition, at the bottom of the interlocking arm 23,
It engages with a stopper 21 provided on the culm collecting shaft 18, and holds the receiving rod 20 of the culm collecting shaft 18 at a predetermined upward angle during the culm collecting action, and prevents the culm collecting shaft 18 from being directed downward. A hook portion 27 is formed to prevent rotation.

In addition, a stopper 21 provided on the culm collecting shaft 18
Another stopper 21a having a shape of about 1/4 disk is integrally provided in the opposite direction to the stopper 21a.
The tip of a pin 28 is elastically installed on the lower straight end surface of the mounting plate 6 so as to be movable in a direction perpendicular to the plate surface of the mounting plate 6.
As shown in FIGS. 2 and 4, the above-mentioned culm collecting shaft 18 and the receiving rod 2
0 is prevented from rotating upward more than necessary, and the upward angle of the rod 20 is always kept constant. Also, the pin 28 is moved outward from the mounting plate 6, and the pin 28 and the stopper 2 are
1a is disengaged so that the receiving rod 20 can be rotated and retracted in the direction of the arrow in FIG. 20 in the storage position.

Further, the outer shoulder portion of the upper end of the mounting plate 6 is connected to the shaft 29 with respect to the frame 2a on which the conveyance chain 2 is suspended.
In addition to being obstructed from being able to rotate freely,
The upper inner shoulder of the mounting plate 6 is connected to the bolt nut 3.
It is fixed to the frame 2a at 0. and,
By removing this bolt nut 30, the mounting plate 6 can be attached to the above-mentioned culm collecting shaft 18 and the receiving rod 20 in the storage position.
It is rotated and stored in the direction of the arrow in FIG.

In addition, as shown in FIGS. 3 and 5, the mounting plate 6
A part of the culm shaft 18 located further back, more specifically, at the back of the combine main body A, is divided as shown in the figure,
Connecting pieces 30' and 31 each having an arcuate planar shape as shown in FIG. 5 and a drum-shaped side surface shape as shown in FIG. 3 are provided at the opposing ends of the culm shafts. The two connecting pieces 30' and 31 are connected by an elastic connecting body 32 made of a rubber material in the shape of a drum, and a substantially central portion of the connecting body 32 is attached to one of the connecting pieces 30'. An arc-shaped engaging piece 33 is provided at the center, and the tip hook portion 34 of this engaging piece 33 is
By engaging the upper end outward locking portion 35 of the other coupling piece 31 from below, the rear end of the collecting culm shaft 18 can be bent in the left and right horizontal directions and upward,
It is constructed so that only downward refraction can be prevented, and when the rear end of the collecting shaft comes into contact with an obstacle, it can be bent in any direction and damage can be prevented.

In addition, as shown in FIG. 6, the rods 20 provided on the collecting culm shaft 18 are closely arranged on the side where the root side of the bundled culm falls, so that the root of the bundled culm which falls from the heavy root side to the line. The side intervenes between the receiving rods 20 to prevent the bundled culms from being accumulated diagonally on the receiving rods 20. The reference numeral 36 shown in FIG. 1 is a regulating rod for reliably guiding the bundled culm to the receiving rod 20, and the reference numeral 37 in FIG. 2 is a stopper pin of the interlocking arm 23.

[Explanation of action]

Next, the operation will be explained based on the above embodiment.
The second
It is moved in the direction of the arrow in the figure. As a result of this transition of the bundled culms, the sensing arm 9 moves in the direction of the arrow in FIG.
That is, it is swung to the position shown by the imaginary line.
This swinging motion is caused by the feed claw 1 provided on the sensing arm 9.
3, the ratchet gear 8 is rotated by a certain angle in the direction of the arrow (clockwise on the page), and when the bundled culm has completely passed through the sensing arm 9, the sensing arm 9 is moved to its old position by the action of the spring 14. Return.

This action is repeated every time the bundled culm passes, and when the set number of bundled culms pass, the pin 25 provided on the ratchet gear 8 is brought into contact with the upper end operating portion 24 of the interlocking arm 23, and this
swings to the position shown by the imaginary line in FIG.
It comes off from the stopper 21 provided at. At this point, the holding action of the stopper 21 is released, the rod 20 supporting the set number of bundled culms rotates downward, and the set number of bundled culms that have been accumulated are released in the field at once. released above.

When the discharge is finished, the collecting culm shaft 18 is moved to the return spring 22.
Due to the action of the straight end face of the stopper 21a, the pin 28
Rotate until it comes into contact with the collecting culm shaft 18, and
The receiving rod 20 rotates upward to the position shown by the solid line, and the stopper 21 automatically engages with the hook portion 27 of the interlocking arm 23, which has already been restored by the action of the spring 26, and the bundled culm is accepted again. Become. This operation is repeated.

In the above embodiment, one pin 25 was used, but
For example, by providing two to three pins at equal intervals on the ratchet gear 8, the bundled culm can be released two to three times during one rotation of the ratchet gear 8. The number is not specified.

[Effect of idea]

As described above, according to the configuration of the present invention, the following effects can be obtained.

(a) Unlike conventional devices that operate the culm aggregate using the weight of the bundled culm, the falling impulse of the bundled culm and vibration of the combine main body due to unevenness of the field act, and the number of bundles is less than the set weight. There is no release, and the set number of bundles are reliably released and collected, and the efficiency of post-processing of the released bundled culm can be improved.

(b) The movement of the receiving rod from the stacking and supporting posture of the bundling culm to the discharging posture is controlled by the interlocking arm that swings as the set number of bundles converges, so the number of bundles released is The settings can be made as desired, and the problems of the prior art can be easily solved.

(c) An adjustment rod that touches the sensing arm below the pivot point on the mounting plate and adjusts the return stroke of the sensing arm to large or small positions is fixed to the mounting plate so that it can move horizontally. When the return stroke of the arm is made smaller, the angle of rotation of the rotational effect member (ratchet gear) is smaller, and therefore, the rotational effector needs to pass through many bundling culms to reach the set angle. When a number of bundles of bundled culms are accumulated and the return stroke of the sensing arm is increased, the rotational effect body reaches the set angle with a smaller number of bundles, which changes the property of the grain culm or the thickness of the bundled culm. It is possible to accumulate and release a corresponding number of bundles.

(d) In addition, the present invention provides the above-mentioned culm collection at least at the lower end of the discharging device, so that the discharging device has a function of preventing the bundling culms from falling, and in particular has a mechanism for preventing the bundling culms from falling. There is no need to provide it, and the structure can be simplified.

(e) Since one side of the upper part of the mounting plate is fixed to the frame of the carrier so that it can rotate upward,
When the combine harvester is driven into the field, the culm collection device will not collide with the field and be damaged, and when the combine harvester is driven on the road, it will be able to comply with the length restrictions imposed on the combine harvester, and it will prevent accidents during driving. sell.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view, Fig. 2 is a front view of the main parts of the present invention, Fig. 3 is an enlarged partially cutaway front view of the main parts of the above, and Fig. 4 is a partially cutaway side view of the main parts of the same. , FIG. 5 is a partially cutaway plan view of the culm collecting shaft, and FIG. 6 is a plan view of the culm collecting body. A... Combine main body, B... Binding device, C...
...Discharge device, D... Culm aggregate, 1... Discharge sweeper, 2... Conveyance chain, 3... Sprocket, 4
...Pinch chain, 6...Mounting plate, 6a...Lid plate,
7... Shaft, 8... Ratchet gear, 9... Sensing arm, 11... Reverse prevention claw, 13... Feed claw, 1
4... Spring, 15... Adjustment rod, 16... Guide slot, 16a... Tightening nut, 18... Culm shaft, 2
0...Reception, 21, 21a...Stopper, 22
... spring, 23 ... interlocking arm, 24 ... acting part, 25 ... pin, 26 ... spring, 27 ... hook, 28 ... pin, 29 ... shaft, 30 ... bolt nut.

Claims (1)

[Scope of Claim for Utility Model Registration] From the bundled culm discharge part of the bundled culm bundling device installed at the rear of the machine, the bundled culms are sequentially conveyed and accumulated on the culm collecting body by a conveyor in a substantially horizontal position, and the bundled culms are discharged in a timely manner. In a bundled culm discharging device for a combine harvester that discharges a group of culms to the ground, the upper part of a mounting plate in a substantially vertical position is connected to the frame that suspends the above-mentioned transport body, and the upper end is attached to this mounting plate from the above-mentioned transport body. The sensing arm protrudes upward and is pushed and rotated by the bundled culm being conveyed, pivoting the middle part of the sensing arm that automatically returns, and abutting the mounting plate below from the pivot point of the sensing arm, An adjustment rod for adjusting the return stroke of the sensing arm is fixed so as to be horizontally movable, and one side of the upper part of the mounting plate is fixed so as to be rotatable upward relative to the frame of the conveying body. A rotary action body (ratchet gear) is provided on the plate, which rotates by a set angle by repeating the return rotation stroke of the sensing arm, and a culm shaft bearing that swings when the rotary action body is rotated by the set angle and engages with the lower end. A bundled culm release device C is provided, which is composed of an interlocking arm that releases the rods from the bundled support posture of the bundled culm and puts them in the release posture, and then maintains the support posture again. A bundled culm discharge device for a combine harvester, characterized in that a body D is provided.