JPH0115244B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improved bundling culm discharge device in a combine harvester.

[Conventional technology and its issues]

Conventionally, this kind of bundled culm discharging device, similar to the dropper mechanism that collects and releases unbound culms, is used when a predetermined weight of culms is accumulated on the receiving culm collection by means of springing, etc. In addition, the culm assembly rotated downward against the elasticity of the springs to release the group of accumulated and bundled culms to 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 is often seen that the accumulated bundled culms are ejected before the weight of the group of bundled culms on the culm reaches the set weight.

The fact that less than a predetermined number of bundled culms are released means that there is an insufficient number of bundles to dry the bundled culms in a conical shape on the field so that they lean against each other. , extra work may be required, such as having to source supplies from elsewhere. Furthermore, in conventional equipment, due to the difference in culm length,
Because the weight of each bundle was different, it was not possible to collect the desired number of bundles, and it was necessary to adjust the tension of the strings each time according to field conditions and culm length, and even then, it was difficult to collect a fixed number of bundles. .

The purpose of the present invention has been made in response to these circumstances, and it is possible to eliminate the problems of the prior art by using a simple configuration and rational means, and to set the release motion of the culm aggregate as in the past. To provide a bundled culm discharging device capable of appropriately discharging evenly distributed culm bundles by using a setting signal for the number of collected culm bundles without relying on weight.

[Means to solve the problem]

The structure of the present invention that solves the problems of the prior art is such that the bundled culms are sequentially conveyed and accumulated to the dropper mechanism by a conveyor from the bundled culm discharge part of the bundled culm binding device provided at the rear of the machine, and the bundled culms are collected at the appropriate time. In a bundled culm discharge device for a combine harvester that discharges a group of bundled culms to the ground, the number of bundled and discharged culms to the dropper mechanism is determined by the amount of rocking (oscillation) of a sensing member that is swung by the transported bundled culms. With a mechanism that detects the distance (distance) and a total vibration amount signal when the vibration amount reaches the set amount,
The present invention is characterized in that a mechanism is provided for operating the dropper mechanism and releasing the group of accumulated bundled culms.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.
is a combine main body, B is a binding device attached to the rear of the combine main body A and automatically and continuously binds the culms discharged and conveyed from the threshing device of the combine main body A, and C is a discharge of the tied culms according to the present invention. It is a device.

The above-mentioned binding device B includes a packer that scrapes the culm,
It is equipped with devices such as a sensing door that detects the amount of culm scraping, a needle that ties a binding cord to the culm that has been scraped in a certain amount, and a knot that ties the binding cord. It consists of a discharge sweeper 1 that discharges water to the outside of the aircraft.

To explain the details of the above-mentioned discharge device C, 2 is a conveyance chain suspended between the sprockets 3, 3, 4 is a pinching rail, 5 is a spring that pushes down the pinching rail 4 toward the conveying chain 2 side; 6
is a mounting plate for the culm assembly D constituting the above-mentioned discharge device C, and a shaft 7 is fixed to the mounting plate 6, and a ratchet gear 8 having a relatively large diameter is rotatably mounted on this shaft 7. At the same time, the lower end of the sensing arm 9 is pivotally attached so as to be swingable. As is clear from the figure, the upper end of the sensing arm 9 extends 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, and this 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 middle part of the sensing arm 9 and the mounting plate 6. has been set up.

Reference numeral 15 denotes an adjustment rod which is screwed into a nut member 16 provided on the mounting plate 6 and has its tip abutted against the return rotation side of the sensing arm 9. As the adjustment rod 15 moves back and forth, the sensing arm 9 is adjusted. By adjusting the stroke length, the amount of rotation of the ratchet gear 8 can be adjusted as described later.

A metal member 17 is provided at the lower part of the mounting plate 6 so as to be substantially perpendicular to the plate surface of the mounting plate 6, and the metal member 17 is provided with a midway portion of the collecting shaft 18 that constitutes the culm collecting body D. is mounted on the shaft. The culm collecting shaft 18 is provided with a fork-shaped receiving rod 20 for the bundled culm 19 facing the side of the combine main body A.

Further, the collecting shaft 18 is provided with a stopper 21 for holding the receiving rod 20 at a predetermined upward angle, and between the stopper 21 and the mounting plate 6, the collecting shaft 18 and the receiving rod 20 are A return spring 22 is installed. Reference numeral 23 designates an interlocking arm whose central portion is pivotally supported on the mounting plate 6. At the upper end of this interlocking arm 23, an operating portion 24 facing the outer peripheral surface of the ratchet gear 8 is formed. A pin 25 for rotating the interlocking arm 23 is provided so as to be movable toward and away from the link arm 23.

A spring 26 is provided between the interlocking arm 23 and the mounting plate 6 for urging the interlocking arm 23 to rotate in one direction. Also, interlocking arm 2
A hook portion 27 is formed at the lower part of 3 to engage with a stopper 21 provided on the culm collecting shaft 18 and to prevent the downward rotation of the culm collecting shaft 18. 28 in the diagram
29 is a fork-shaped drop prevention rod installed approximately perpendicularly to the culm collecting shaft 18; 30 is a perpendicular pin of the stopper 21; This is to restrict excessive rotation of the stopper 21. 31 is a perpendicular pin of the interlocking arm 23.

[Explanation of action]

Next, to explain the operation based on the above embodiment, the bundled culm 19 discharged from the binding device B by the discharge sweeper 1 is guided between the conveyance chain 2 and the pinching rail 4, and is sandwiched between them. In this state, it is moved in the direction of the arrow in Fig. 3.

The sensing arm 9 swings in the direction of the arrow due to the shifting action of the bundled culm 19. This swinging motion causes the ratchet gear 8 to rotate by a certain angle in the direction of the arrow by the action of the feed pawl 13 provided on the sensing arm 9, and when the bundled culm 19 has completely passed through the sensing arm 9, the sensing arm 9 returns to its old position due to the action of Hatsujo 14.

This action is repeated every time the bundled culm 19 passes, and when a set number of bundled culms 19 pass, the pin 25 provided on the ratchet gear 8 moves to the interlocking arm 23.
When it comes into contact with the upper end acting part 24, this interlocking arm 23 swings to the position shown by the imaginary line in FIG. I'm out of 21. At this point, the stopper 21 is released from its holding action.
The holder 20 rotates downward as shown by the imaginary line in Figure 2,
The set number of bundled culms that have been accumulated are released onto the field all at once.

When the discharge is finished, the collecting shaft 18 rotates until the stopper 21 comes into contact with the perpendicular pin 30 due to the action of the spring, and the collecting shaft 18 and the receiving rod 20 rotate upward to the position shown by the solid line. The stopper 21 automatically engages with the hook portion 27 of the interlocking arm 23 which has been restored to its original state by the action of the spring 26, and the bundled culm 19 is placed in the receiving state again. 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, it is possible to release the bundled culm two to three times during one rotation of the ratchet gear 8. The number is not specified.

〔Effect of the invention〕

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

Unlike conventional devices in which the dropper is operated by the weight of the bundled culm, the falling impulse of the bundled culm and the vibration of the combine main body due to irregularities in the field act, and the number of bundles less than the set weight may be released. This system has excellent features such as being able to reliably release and collect a set number of bundles without having to worry about it, and improve the efficiency of post-processing of the released and bundled culms.

[Brief explanation of drawings]

FIG. 1 is a partially omitted perspective view of the combine main body, FIG. 2 is a front view of the present invention, FIG. 3 is an enlarged front view of the main parts of the same, and FIG. 4 is a partially cutaway side view of the same. A... Combine main body, B... Binding device, C...
...discharge device, 1...discharge sweeper, 2...transport chain, 3...sprocket, 4...pinching chain, 6...mounting plate, 7...shaft, 8...ratchet gear, 9...sensing arm, 11...Reverse prevention claw,
13...Feeding claw, 21...Stopper, 22...
Spring, 23... Interlocking arm, 24... Acting part, 2
5...Pin, 26...Hatsujo, 27...Hook.

Claims (1)

[Scope of Claims] 1. From the bundled culm discharge part of the bundled culm bundling device provided at the rear of the aircraft, the bundled culms are sequentially conveyed and stacked on the dropper mechanism by a carrier, and the bundled culms group is brought to the ground at an appropriate time. In a bundled culm discharge device in a combine harvester, the number of bundled culm bundles to the dropper mechanism is detected by the amount of rocking (swinging distance) of a sensing member that is swung by the bundled culm being transferred. A device for discharging bundled culms in a combine harvester, comprising a mechanism and a mechanism for operating the dropper mechanism in response to a total rocking amount signal when the amount of rocking reaches a set amount, and releasing a group of bundled bundled culms.