JP2001258373A - Feed chain-opening device of thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in that since in the conventional feed chain, its supporting shaft which becomes a fulcrum for its rotation, is pivoted almost perpendicularly, the chain rotates horizontally in all of its locus of open rotation and makes a contact with a cover for its machine frame, and since its self weight does not work, it is necessary to engage the chain powerfully by an engaging device at the starting end and final end of the rotation. SOLUTION: This feed chain-opening device is provided by constituting the feed chain 3 installed along the threshing port 2 of a threshing chamber 1 as capable of making an open rotation to its outside by using the supporting shaft 4 at the starting end as its rotating fulcrum, and pivoting the supporting shaft 4 so as to incline its lower part to the outside and upper part to inside in a frontal view of the threshing chamber 1 and incline its lower part to the lower side in cereal culm-conveying direction and the upper part to the upper side in a side view of the threshing chamber 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing device
The dochien opener belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, feed thien of threshing equipment has been
A configuration in which a support shaft is provided at the start end or the end in the transport direction, and an open mechanism that rotates outward with the support shaft as a fulcrum is provided to facilitate cleaning of the inside of the machine and maintenance. And In the case of this conventional type, a configuration is adopted in which the support shaft is mounted in a substantially vertical direction to serve as a rotation fulcrum of the feed chain.

[0003]

As described above, in the conventional feed chain, since the support shaft serving as the rotation fulcrum is mounted substantially vertically, the feed chain is horizontal in the entire locus of the open rotation. Yes, and no holding force such as its own weight acts on the stop side at the start end position of the rotation (when it is along the handle) and at the end position (end point of the feed chain open). Therefore, it has been necessary to firmly lock with a locking device. Further, since the feed chain rotates horizontally as described above, there is a problem that the feed chain comes into contact with the body cover outside the threshing apparatus at an early stage of the rotation and becomes an obstacle.

[0004]

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, the invention according to claim 1 is a filter provided along the opening 2 which is open along the longitudinal direction of the handling chamber 1.
The feed chain 3 is configured such that the feed chain 3 pivots outwardly with the support shaft 4 on the transport start end side as a pivot, and the support shaft 4 is viewed from the front of the handling chamber 1. In this case, a feed chain opening device of a threshing device in which a lower portion is inclined outwardly and an upper portion is inclined inwardly is mounted.

According to a second aspect of the present invention, the support shaft 4 which is a pivot of the feed chain 3 is mounted with the lower part inclined outward and the upper part inclined inward when the handling chamber 1 is viewed from the front. Further, in a side view of the handling room 1, a feed chain opening device of a threshing device is configured in which the lower portion is mounted on the lower side in the grain culm transport direction and the upper portion is mounted on the upper side inclined.

A third aspect of the present invention is a guide device 5 for guiding the feed chain 3 along an open rotation locus.
Is provided so as to be freely movable on the body 6, and the guide device 5 is
At the end of the open rotation of the feed chain 3,
3. A feed chain opener for a threshing apparatus according to claim 1 or 2, wherein a buffer spring 7 having a buffering function is provided.

[0007]

As described above, the present invention is constructed as described above, so that the feed chain rotates upward and upward at an initial stage of the open rotation, and reaches a maximum at an intermediate position. It is characterized in that it can turn while avoiding the body cover of the threshing device because it turns on the down slope. Further, the feed chain according to the present invention has an advantage that the stopped state can be surely maintained due to the weight of the feed chain, since the feed chain stops at the lowered position at the starting point and the end point of the rotation.

[0008]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, as shown in FIG. 6, a combine 8 has a threshing device 11 mounted on a traveling vehicle body 10 having a crawler 9 and a harvesting pretreatment device 12 in front of the threshing device.
Are connected.

As shown in FIG. 6, the pre-cutting device 12 comprises a weeding rod 13 at a low position at the front, a grain stem raising device 14 inclined rearward thereof, and a cutting device below the cutting rod. Fifteen
And a cereal culm conveying device 16 composed of a root chain 16a for conveying the culled culm and a pierced lug 16b, which are capable of transmitting power and are integrally attached to the reaping frame 17. The cutting pre-processing device 12 is provided with a cutting elevating cylinder 18 which is expandable and contractable by a hydraulic mechanism between the cutting frame 17 and the front part of the traveling vehicle body 10 so that the vertical movement can be adjusted.

Next, as shown in FIG. 5, the threshing apparatus 11 has a handling room 1 provided with a handling drum 19 at the top and a sorting room 22 provided with a swing sorting shelf 21 below. Make up. Although not shown in the drawing, the sorting room 22 is, as is widely known, the swing sorting shelf 2.
Below 1, the objects to be sorted, which are mounted in the order of the pressurized wind, the first transfer spiral, and the second transfer spiral from the upper side in the sorting direction, are sorted and separated by the swinging operation and the wind sorting operation. Configuration.

The handling cylinder cover 23 is located at a position covering the upper part of the handling chamber 1, is supported by a gas damper 24 so as to be rotatable upward, and can be freely opened and closed, so that cleaning and maintenance are easy. I can do it. Next, as shown in FIG. 5, the feed chain 3 is rotatably supported on the chain support member 25, and is provided along the opening 2 opening to the front side of the processing chamber 1. The chain support member 25
The pivot frame 26 is connected to and supported by the starting end of the frame. The feed chain 3 is provided with a transmission shaft 27 (input shaft) at a rear portion, and is connected to a transmission gear box 28 at a rear portion of the threshing device 11 so as to be freely inserted into and removed from the feed chain 3.

In FIG. 5, a holding rod 29 is attached to the handle barrel cover 23 side, so that the stem of the grain stem is held and transported by the feed chain 3 described above.
Numeral 30 indicates a straw chain. As shown in FIG. 2, the support shaft 4 is rotatably supported by a support device 32 fixed to a support table 31 on the traveling vehicle body 10, and the rotatable frame 26 is freely rotatable. And is connected and supported. Therefore, as shown in FIG. 2, the feed chain 3 is connected to the chain support member 2 integrally connected to the rotating frame 26.
5, the feed shaft can be turned around the support shaft 4 as a turning fulcrum, so that the handling room 1 and the sorting room 22 can be easily cleaned and maintained.

Further, as shown in the front view of the handling chamber 1 in FIG.
Further, as shown in the side view of the threshing apparatus 11 (handle room 1) in FIG. Thus, the feed chain 3 is the same as that of FIG.
As shown in FIG. 2 and FIG. 2, a feed shaft is connected to and supported on a support shaft 4 inclined inwardly and further forwardly through a rotating frame 26 and a chain support member 25. It has a configuration that can open.

[0014] The feed chain 3 constructed as described above
Is, as shown in FIG.
Although it turns while drawing a mountain-shaped turning trajectory,
The rotation trajectory is at a low position at a starting point A (a transfer work position mounted on the threshing device 11) and at an end point B (a highest open position), and is higher than both ends at an intermediate point C (during rotation). It is configured to rotate in a mountain shape passing through the position. Therefore, the feed chain 3 is stopped at the lower position where the starting point A and the end point B of the rotation trajectory are lowered, so that the self-weight of the feed chain 3 works to change the stop position (state). There is an advantage that it can be stably held.

Next, as shown in FIGS. 1 and 3, the guide device 5 has a rod-like member formed in an arc shape centering on the support shaft 4 and a base portion of the guide member 5 on the feed chain 3 side. 25, and the distal end side is slidably supported by a guide 33 provided outside the handling chamber 1.

The cushioning spring 7 is composed of a compression spring, and the leading end of the guide device 5 and the guide 33 on the handling room 1 side.
Is provided around the guide device 5 to relieve the rapid rotation (opening direction) of the feed chain 3 by a spring load. With the above configuration, when the feed chain 3 rotates open from the intermediate point C to the end point B side (outside) while drawing the above-described rotation trajectory shown in FIG.
Although the trajectory sequentially rotates with a downward gradient, the spring load of the buffer spring 7 gradually increases as the rotation progresses, so that rapid rotation can be prevented. In this way,
When the end point B reaches the end point B, the lower part 3 is kept at a low position, and its state is stably maintained, and it hardly rotates in the reverse direction (closed side) during the maintenance.

In the case of the embodiment shown in FIG. 2, the feed chain 3 is configured such that the sprocket 35 at the start end is located behind the virtual extension line D above the support shaft 4 in a side view. are doing. Therefore, the feed chain 3 has the advantage that the starting end does not protrude toward the threshing device 11 when rotating the feed chain opener, and no obstacle such as a collision occurs during the rotation.

Next, the operation will be described. First, the engine is started, the cutting clutch and the threshing clutch are engaged, and the traveling body 10 is moved forward while transmitting the rotating parts of the machine body to start the cutting and threshing work by the combine 8. Then, referring to FIG. 6, the cereal culm in the field is subjected to the weeding action by the weeding rod 13 at the lower front end, and then is erected from the lying state by the eliciting action of the cereal stem raising device 14. In this state, the roots of the stock reach the reaper 15 and are harvested. The stalks are transferred to the grain culm transporter 16 and are successively transported upward and rearward.

As described above, the cereal stalk is transported by the cereal stalk transport device 1
6 is passed to the starting end of the feed chain 3 and the stock is conveyed while being clamped by the feed chain 3 and the holding rod 29. In the process, threshing is performed by the rotating handling drum 19. Then, the thresh-processed material reaches the lower sorting chamber 22 and is sorted by the action of the swinging sorting shelf 21 which is oscillating, and further falls downward to be sorted by the sorting wind.

As described above, the combine 8 continuously performs the harvesting and threshing operation, harvests the selected threshing kernels, and collects and stores them in the Glen tank. When the harvesting and threshing operation is completed, the combine 8 normally performs cleaning and maintenance of the threshing device 11, and the maintenance operation will be described.

First, during maintenance, the threshing apparatus 11 opens the handle cover 23 upward by the gas damper 24 and rotates the feed chain opener at the time of maintenance. At this time, the feed chain 3 is supported. With the shaft 4 as a pivot, the pivot frame 26 and the chain support member 25 are integrally pivoted outwardly. Then, the support shaft 4
In FIG. 4, since the upper part is inclined inward in the front view (see FIG. 1) and the upper part is inclined forward in the side view (see FIG. 2), the mountain shown in FIG. It turns outward while drawing the turning trajectory of the shape. At that time, the feed chain 3 rotates while drawing a rising gradient outward from the working position mounted on the threshing device 11 as a starting point A, reaches a maximum height at an intermediate point C, and then exceeds it. Then, it turns in a descending gradient and reaches the end point B. Then, the guide device 5 rotates integrally with the feed chain 3 to rotate the guide device 33.
At the descending gradient (from the intermediate point C to the end point B), the spring load of the buffer spring 7 is gradually increased and the cushion spring 7 can be rotated slowly.

Thus, the feed chain 3 can
At the starting point A and the ending point B in the rotation path of the open chain, there is an advantage that the weight of the chain acts on the holding side to stably secure the stop position. Since it rotates while drawing, it also has a feature that it is excellent in safety without contact or collision by rotating while avoiding the machine frame and cover upward.

As described above, the threshing apparatus 11 is provided with the configuration shown in FIG.
As shown in (2), when the handle cover 23 is opened and the feed chain 3 is opened, the handling room 1 and the sorting room 22 can be largely opened, so that cleaning and maintenance can be performed very easily.

[Brief description of the drawings]

FIG. 1 is a front view of a main part according to an embodiment of the present invention.

FIG. 2 is a side view of a main part according to the embodiment of the present invention.

FIG. 3 is a plan view of the embodiment of the present invention.

FIG. 4 is an embodiment of the present invention and is a rotation locus diagram viewed from behind a terminal end of a feed chain.

FIG. 5 is a perspective view showing an operation of the embodiment of the present invention.

FIG. 6 is a side view of the embodiment of the present invention.

[Explanation of symbols]

1 Handling room 2 Handling port 3
Feed chain 4 Support shaft 5 Guide device 6
Airframe 7 Buffer spring A Start point of rotation B End point of rotation C
Intermediate point of rotation.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoichi Yamamoto 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Pref.

Claims (3)

[Claims] 1. A feed chain provided along a handle opening opened in a longitudinal direction of a handle chamber, wherein the feed chain has a support shaft on a transport start end side as a rotation fulcrum. A feed chain opening device of a threshing device, wherein the support shaft is mounted so that the lower portion is inclined outward and the upper portion is inclined inward when viewed from the front of the handling room. 2. A support shaft, which is a rotation fulcrum of the feed chain, is provided with a lower part outward and an upper part inwardly inclined when viewed from the front of the handling chamber. A feed chain opening device of a threshing device comprising a shaft mounted on a lower side of the grain stalk transport direction and an upper side inclined upward. 3. A guide device for guiding the feed chain along an open rotation locus is provided on the body so as to be freely movable, and the guide device is provided for opening and closing the feed chain. A feed chain opener for a threshing apparatus according to claim 1 or 2, wherein a buffer spring having a buffer function is provided at a final stage.