JPH0238593Y2 - - Google Patents

Description

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

[Conventional technology]

Conventionally, this kind of bundled culm discharge device has a dropper mechanism that collects and discharges unbound culms.
When a set weight of waste culms is accumulated on the receiving culm aggregate by means of a spring, the culm aggregate rotates downward against the elasticity of the above-mentioned springs, and the group of accumulated bundled waste culms is lifted from the ground. It was designed so that it would be emitted.

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.

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, with conventional equipment, the weight per bundle varies depending on the culm length, making it impossible to collect the desired number of bundles, and the tension must be adjusted depending on the field and culm length. Therefore, it was difficult to collect a certain number of bundles.

Furthermore, in such conventional techniques, in order to set the number of bundled and discharged culm bundles, the elasticity of the spring must be adjusted by relying on the intuition of the operator, which is extremely uncertain.

[Purpose of invention]

The present invention was developed in response to the above-mentioned circumstances, and uses a simple configuration and rational means to eliminate the drawbacks of the conventional methods, and eliminates the reliance on set weight for the release movement of the culm aggregate as in the past. By using a setting signal for the number of collected culm bundles, the bundled culm discharge is performed accurately without unevenness in the number of bundles to be released, and any number of collected culms can be obtained arbitrarily. The object of the present invention is to provide a release device.

[Means for solving the problem] The bundled culm discharge device of the present invention, which solves the conventional problems, in a combine harvester, etc., is capable of discharging the bundled culm from the bundled culm discharge part of the culm binding device installed at the rear of the machine to the conveyor. The discharge device is configured to sequentially transport and accumulate the bundled culms to the dropper mechanism and release the group of bundled culms to the ground in a timely manner. The present invention is characterized in that a motion sensing section is interveningly disposed on the conveying surface of the bundled culm conveying body, and an adjustment member 15 is provided for regulating the swinging range of the swinging sensing member.

〔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 and conveyed from the threshing device of the combine main body, and C is a bundled culm discharge device according to the present invention. It is.

The above-mentioned tying device B, which has already been generalized, includes a tucking car that scrapes the culm, a sensing door that detects culm raking, a needle that attaches a tying string to the culm that has been raked in a certain amount, and a knot on the tying string. The machine is equipped with devices such as knots for attaching the culms, and further includes 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 the sprockets 3, 4 is a pinching rail, and 5 is a pinching rail 4 directed toward the conveyance chain 2 side. Spring that pushes down, 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 relatively large-diameter ratchet gear 8 is rotatably mounted on the shaft 7. At the same time, a midway portion of the sensing arm 9 is pivotally attached to the shaft 7 so as to be swingable. As is clear from FIG. 3, 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 13 pressed in one direction by a spring 12.
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 elastically provided between the lower end of the sensing arm 9 and the mounting plate 6. It has been done.

Reference numeral 15 denotes an adjustment rod provided on the mounting plate 6 and the cover plate 6a detachably attached to the front surface thereof, and movably inserted into the guide slot 16 provided on the mounting plate 6 and the cover plate 6a. So, this adjustment rod 15
is the lower end of the sensing arm 9, which is in contact with the return sliding side surface, and is connected to the tightening nut 1.
6a, it can be fixed to the mounting plate 6 and the cover plate 6a, and by moving this adjustment rod left and right, the sensing arm 9
The stroke length of the ratchet gear 8 is adjusted to a large or small degree, and the amount of rotation of the ratchet gear 8 is adjusted as described later.

A metal member 17 is provided at the bottom 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 culm shaft 18 constituting the culm collection D. is mounted on the shaft. The culm collecting shaft 18 is provided with a fork-shaped receiving rod 20 for the bundled culm 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 collecting shaft 18, and a stopper 21 is provided between the stopper 21 and the mounting plate 6 for returning the collecting rod 18 and the receiving rod 20. 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. and a pin 25 for rotating the interlocking arm 23.
It is possible to approach and separate.

Then, between the interlocking arm 23 and the mounting plate 6, the action part 24 of the interlocking arm 23 is inserted into the pin 25.
A spring 26 is provided for biasing rotation in the direction of. Further, the lower part of the interlocking arm 23 engages with a stopper 21 provided on the culm collecting shaft 18 to hold the receiving rod 20 of the culm collecting shaft 18 at a predetermined angle during the culm collecting action, and A hook portion 27 is formed to prevent the culm collecting shaft 18 from inadvertently rotating downward.

Furthermore, another stopper 21a having a shape of approximately 1/4 disk is provided on the culm collecting shaft 18 in the opposite direction to the stopper 21 provided thereon, and the lower end surface of the stopper 21a is attached to the plate of the mounting plate 6. As shown in FIGS. 2 and 4, the tips of the pins 28 are engaged with the pins 28, which are resiliently disposed so as to be movable horizontally with respect to the surface, and the return springs 22 cause the collecting shafts 18 and the receiving rods 20 to move upwards more than necessary. Rotation is prevented and the upward angle of the rod 20 is always maintained constant. Further, by pulling the pin 28 outward from the mounting plate 6 and disengaging the pin 28 from the stopper 21a, the rod 20 can be rotated and stored in the direction of the arrow in FIG. At that time, the stopper 21a
the other end surface of the

The outer shoulder of the upper end of the mounting plate 6 is rotatably supported by a shaft 29 on the frame 2a of the conveying chain 2, and is connected to a bolt nut 30 provided on the inner shoulder of the upper end of the mounting plate 6. Thus, the mounting plate 6 is fixed to the frame 2a. Then, by removing the bolt nut 30, the mounting plate 6
is rotated and stored in the direction of the arrow in FIG. 2 with the culm collecting shaft and receiving rod 20 together.

As shown in FIGS. 3 and 5, a part of the culm shaft 18 located behind the mounting plate 6, more specifically, behind the combine main body A, is divided as shown in the figure, and each opposing culm shaft Connecting pieces 30a and 31 each having an arcuate planar shape as shown in FIG. 5 and a drum-like side shape as shown in FIG. 3 are provided at the shaft end, and both the connecting pieces 30a, 31 are connected by a connecting body 32 made of a rubber material and shaped like a drum, and further, the connecting body 3 is attached to one of the connecting pieces 30a.
An arc-shaped engaging piece 33 centered approximately at the center of the connecting piece 3 is provided, and the distal hook portion 34 of this engaging piece 33 is engaged with the upper end outward locking portion 35 of the other connecting piece 31 from below. By doing so, it is possible to bend the rear end of the collecting shaft 18 in the left and right horizontal directions and upward, and only to prevent downward refraction, and when the rear end of the collecting shaft 18 comes into contact with an obstacle, it can be bent in any direction. It is designed to bend and prevent damage.

As shown in FIG. 6, the receiving 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 side of the bundled culm, which is heavier and falls first, It intervenes between the receiving rods 20 to prevent the bundled culms from being accumulated diagonally on the receiving rods 20. In the figure, 36 is a regulating rod for reliably guiding the bundled culm to the receiving rod 20, and 37 is a stopper pin of the interlocking arm 23.

[Effect]

Next, to explain the operation based on the above embodiment, the bundled culm 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.

The sensing arm 9 swings in the direction of the arrow due to this bundled culm shifting action. This rocking motion is
The ratchet gear 8 is rotated 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 has completely passed through the sensing arm 9, the sensing arm 9 is moved by the action of the spring 14. Return to rank.

This action is repeated every time the bundled culms pass, and when a set number of bundled culms pass, the pin 25 provided on the ratchet gear 8 is moved to the upper end acting portion 2 of the interlocking arm 23.
4, this interlocking arm 23 swings to the position shown by the imaginary line in FIG. At this point, the holding action of the stopper 21 is released, the receiving rod 20 rotates downward as shown by the imaginary line in Figure 2, and the set number of bundled culms that have been accumulated are released onto the field at once. Ru.

When the discharge is finished, the collecting culm shaft 18 rotates until the stopper 21 comes into contact with the pin 28 due to the action of the spring, and the collecting culm shaft and the receiving rod rotate upward to the position shown by the solid line.
The interlocking arm 2 has already been restored by the action of the spring 26.
The stopper 21 automatically engages with the hook portion 27 of No. 3, and the bundled culm is accepted 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. pin 2
The number of 5 is not specified.

Furthermore, by moving the adjustment rod 15 in the left-right direction using the mounting plate 6 and the cover plate 6a as guides, more specifically, by moving it in the left direction in the paper of FIG. 2, the tip of the sensing arm 9 is rotated in the right direction in the paper. By making the stroke of the sensing arm 9 smaller, the rotation of the ratchet gear 8 can be made in small increments, and the number of convergence can be increased. Furthermore, when the adjusting rod 15 is moved to the right in the drawing, the stroke of the sensing arm 9 changes significantly, contrary to the above, the rotation of the ratchet gear 8 is increased, and the number of focused bundles is reduced.

〔effect〕

As described above, the present invention has the following effects.

(a) 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 unevenness of the field act, and the number of bundles smaller than the set weight is released. Therefore, the set number of bundles can be reliably released and collected, and the efficiency of post-processing of the released bundled culm can be improved.

(b) Since the adjustment member is provided to regulate the swing stroke of the sensing member, the swing stroke of the sensing member can be arbitrarily adjusted, and when the swing stroke is large, the number of focused bundles can be reduced. , conversely, when the stroke is small, the number of convergence bundles can increase. Therefore, the number of bundled and left bundled culms suitable for the purpose of work can be freely set.

[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 a partially cutaway enlarged front view of the main parts of the same, and Fig. 4 is a partially cutaway side view of the main parts of the same. Figure, 5th
The figure is a partially cutaway plan view of the collecting culm shaft, and FIG. 6 is a plan view of the dropper mechanism. A... Combine main body, B... Binding device, C...
...Discharge device, 1...Discharge sweeper, 2...Transportation chain, 3...Sprocket, 4...Pinching chain, 6...Mounting plate, 6a...Lid plate, 7...Shaft, 8
...Ratchet gear, 9...Sensing arm, 11...
...Reversal prevention claw, 13...Feeding claw, 14...Springing claw,
15... Adjustment rod, 18... Culm axis, 20... Receiving rod.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) From the bundled culm release part of the bundled culm bundling device installed at the rear of the machine, the bundled culms are sequentially conveyed and stacked on the dropper mechanism by a conveyor, and the bundled culms are collected at the appropriate time. In a discharging device configured to discharge a group of bundles onto the ground, (b) a swing sensing unit that detects the passage of a number of bundled discharged culm bundles to be conveyed to the dropper mechanism is interposedly disposed on the conveyance surface of the bundled discharged culm conveying body; (c) A bundled culm discharge device for a combine harvester or the like, characterized in that an adjustment member 15 is provided for regulating the swing range of the swing sensing member.