JPH05153844A - Combine - Google Patents

Abstract

PURPOSE:To provide a combine capable of smoothly transferring the tip of ear by placing a feeding roller for transferring floating straws at the inlet port of a threshing chamber, supporting a rotary roller rotating in contact with transferred culms on a supporting rail and interlocking the rotary member with the rotary shaft of the feeding roller. CONSTITUTION:The ear-tip feeding apparatus of a combine has a feeding rotor 9 capable of forcedly transferring floating straws toward a threshing chamber 5 by rotating on a lateral shaft and placed at the ear-tip side of the inlet port of the threshing chamber 5. A rotary member 13 driven by contacting from above with culms transported with a feed chain 2 is supported on a supporting rail 3 opposite to the feed chain 2. The rotary member 13 and the rotary shaft 10 of the feeding rotor 9 are interlocked with each other via a flexible shaft- transmission means 12. The apparatus has a simple structure, decreases the hanging trouble of cut straws, enables the smooth transfer of ear-tip to the threshing chamber at a proper driving speed, stabilizes the posture of the culm and attains good threshing result.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention aims to stabilize the posture of a grain culvert conveyed in a feed chain in a combine harvester,
The present invention relates to a technique that enables good threshing.

[0002]

2. Description of the Related Art In mowing threshing with a combine harvester, in the feeding state until the cut grain culms are introduced into the handling room,
The so called "hakama", which was wrapped around the grain culm, has no ears, and the straws separated by sliding with the chain in the transport device generate straws and the like near the entrance of the handling room. May stagnate and accumulate. When this phenomenon occurs,
The grain culm is transferred to the handling room in the posture of the origin of the plant, which hinders the transfer of the tip of the grain culm to the handling room, causing clogging of the grain culm at the entrance to the handling room and breakage of the ears in the handling room. Because it is easy to be
As shown in Japanese Utility Model Laid-Open No. 55-37369, a scraping and conveying member for moving a crank, which is provided at an inlet portion of a handling chamber, forcibly handles the tip portion of a grain culvert in order to avoid the inconvenience. There is known a technique for sending the material to the room.

[0003]

However, since the above-mentioned prior art is a means for moving the scraping conveying member in a complicated manner by the link mechanism interlocked with the rotating shaft of the handling cylinder by the bevel gear, its drive structure is Since the link mechanism is relatively complicated and has many operating parts, there is a concern that straws may be caught in the link mechanism itself, and the driving speed thereof tends to be faster than necessary. Therefore, an object of the present invention is to realize a device capable of smoothly transferring the tip portion of the grain stem to the handling room at an appropriate driving speed by further devising the member for forcibly transferring the straw and the driving structure thereof.

[0004]

In order to achieve the above object, the present invention is capable of forcibly transferring floating straws toward the handling room at the tip side portion of the handling room entrance by rotation around the left and right axis. In addition to the feed rotary body, a rotary member that comes into contact with the grain culm conveyed in the feed chain from above and rotates following it is supported by a sandwiching rail facing the feed chain, and the rotary shaft of the rotary member and the feed rotary body is supported. And are linked and coupled via a bendable shaft transmission means.

[0005]

In the above characteristic structure, the power of the feed rotary member disposed at the inlet of the handling chamber is input from the feed chain, not the power transmission system of the handle cylinder. Therefore, the rotational speed of the feed rotary member acting on the tip portion Can be set to match the feeding speed of the feed chain, and a proper forced tip feeding action can be achieved. Further, since the rotary member and the feed rotary member are interlockingly connected by the bendable shaft transmission means, the feed rotary member can be rotationally driven regardless of the vertical movement of the sandwiching rail supporting the rotary member.
Then, the rotating member is supported by the sandwiching rail so as to be contacted from above the transported grain culm, that is, the lower part of the rotating member rotates in the direction in which the lower part moves backward, but this is, It is convenient that the height level of the inlet of the handling chamber is lower than the height level of the feed chain, and for example, it is suitable for shaft transmission means such as a universal joint where it is desirable that the bending angle is as small as possible. When installed at the same height level as the rotating member,
Exactly, the lower part of the feed rotary member that moves rearward is positioned at the tip portion of the inlet of the handling chamber. Therefore, it becomes possible to dispose the shaft transmission means in a state in which the relative deviation between the rotation shaft centers of the rotating member and the feeding rotating body is suppressed to a minimum. Further, the structure for inputting the power is simpler than the conventional structure, which is the rotating member and the shaft transmitting means as described above, and it is easy to avoid that the input structure itself is caught by straw or the like.

[0006]

As a result, it is possible to provide a tip feeding device capable of forcibly transferring the tip portion to the handling chamber smoothly at a more appropriate driving speed while having a simple structure and less risk of catching straws. It was

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an inlet portion of a handling chamber in a combine, 1 is a vertical transfer device, 2 is a feed chain, 3
Is a holding rail, 4 is a handling barrel, 5 is a handling room, 6 is an entrance of the handling room, and 7 is a receiving net. The support bracket 8 is provided on the handle 6.
A plurality of biting rollers (corresponding to the feeding rotary body) 9 rotatably supported in a cantilever manner are arranged in parallel in front of the belt 14 for driving the handling cylinder 4, and the tip of the rotary shaft 10 thereof. And a transmission shaft 11 rotatably supported at the start end of the holding rail 3 are interlockingly connected via an Oldham joint (corresponding to shaft transmission means) 12 which is a universal joint. A rotary roller (corresponding to a rotary member) 13 is attached to the transmission shaft 11 so as to come into contact with the grain culvert conveyed by the feed chain 2 from above and rotate following the grain culvert. The rotation roller 13 rotates to bite the roller. 2 rotates counterclockwise in FIG. 2 and forcibly feeds the tip portion of the grain stem toward the handling chamber 5. Of the pivotal support portions 15, 15 of the pair of transmission shafts 11 on the sandwiching rail 3, the pivotal support portion 1 on the inner side of the airframe.
In Fig. 5, the through-holes of the sandwiching rail 3 are vertically elongated holes, and the transmission shaft 11 can be tilted and displaced in accordance with the sandwiching rail 3 that fluctuates vertically depending on the amount of grain. Gear-shaped concavities and convexities are formed on the outer circumferences of the biting roller 9 and the rotating roller 13 in order to increase the coefficient of friction. The rollers 9 and 13 may be formed in a sprocket shape. If the rotary roller 13 is provided at the starting end of the sandwiching rail 3 as in the above-described embodiment, the contact start situation between the grain culm and the sandwiching rail 3 becomes the rotary contact state with the rotary roller 13, and Even if the culm volume increases sharply, there is an advantage that the holding rail 3 and the feed chain 2 can smoothly shift to the holding and conveying state.

The two pivotal support portions 15 of the transmission shaft 11 have a pivotal support structure that is rigid in the vertical direction, and the transmission shaft 11
The rotary shaft 10 and the rotary shaft 10 may be interlockingly connected by a shaft transmission means by a flexible joint made of a flexible material such as rubber.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Front view of the handling room

FIG. 2 is a side view of the handling portion.

FIG. 3 is a side view of the front part of the combine.

[Explanation of symbols]

 2 Feed Chain 5 Handling Room 9 Feeding Rotating Body 10 Rotating Shaft 12 Shaft Transmission Means 13 Rotating Member

Claims (1)

[Claims] 1. A feed rotary member (9) for forcibly transferring floating straws toward the handling chamber (5) by rotating about the left and right axis at the tip side portion of the inlet of the handling chamber (5). The rotating member (13) which is installed and rotates following the grain culm conveyed by the feed chain (2) from above is supported by the sandwiching rail (3) facing the feed chain (2). Rotating member (13) and the feeding rotating body (9)
A shaft transmission means (12) that can bend the rotation shaft (10) of
Combines that are linked together via.