JP2023050635A - Thresher for general-purpose combine-harvester - Google Patents

Abstract

To address such a problem that threshing teeth disclosed in the prior art are attached to pipe-like support members, where the support members with the plurality of threshing teeth are disposed at prescribed intervals apart in a rotation direction of a threshing cylinder, however there are no threshing-teeth support members supporting in contact with an opposite side of the rotation direction, of the threshing teeth, in the middle of the respective threshing teeth, so that no sufficient threshing action can be expected; and to provide a thresher threshing large processing objects with tip-side threshing teeth formed at both sides of the threshing-teeth support member and threshing relatively small processing objects such as ear-broken grains with base-side (fixed-side) threshing teeth, having improved threshing performances and reducing loss such as leftover grains and free grains over rack by including threshing-teeth support members supporting in contact with the opposite side of the rotation direction, of the threshing teeth, in the middle of the threshing teeth.SOLUTION: A thresher includes threshing-teeth support members 23 supporting in contact with an opposite side of a rotation direction, of threshing teeth 15, in the middle of the threshing teeth 15 rotating along with a threshing cylinder 14 of a general-purpose thresher and mounted and supported by plate bodies parallel to the shaft of the threshing cylinder 14 and in the front/rear of the threshing cylinder 14.SELECTED DRAWING: Figure 3

Description

The present invention relates to a threshing device for a general-purpose combine harvester that throws the front part of harvested culms into a threshing chamber for threshing.

The pliers disclosed in Patent Document 1 are attached to a pipe-shaped support member, and the support members to which a plurality of pliers are attached are arranged at predetermined intervals in the rotation direction of the threshing cylinder, and the middle part of each pliers is In addition, since there is no support member for contacting and supporting the pliers on the side opposite to the rotation direction of the pliers, there is a problem that a sufficient shedding action cannot be expected.

JP 2020-202877 A

In order to solve the problem that a sufficient shedding action cannot be expected with the above-mentioned conventional devices, in the present invention, in the middle part of the handle, the handle is supported by contacting the side opposite to the rotation direction of the handle. By providing the support member, the tip side cusps sandwiching the cusp support member shed large processed materials, and the proximal side (adhering side) cusped teeth threw relatively small processed materials such as ear cuts. The purpose is to treat, improve the shedding performance, and reduce the loss of unhandled granules and cut granules.

In order to solve the above problems, the present invention has taken the following technical measures.

That is, according to the present invention as defined in claim 1, a pliable tooth 15 that rotates together with the threshing drum 14 of the general-purpose threshing apparatus 8 has a pliable tooth contacting and supporting the side opposite to the rotating direction of the pliable tooth 15 in the middle part of the pliable tooth 15 rotating together with the threshing cylinder 14 . A support member 23 is provided, and is mounted and supported on front and rear plates 24 and 25 of the handling cylinder 14 in parallel with the axis of the handling cylinder 14 .

According to a second aspect of the present invention, in the first aspect, the handling teeth 15 are attached and supported so as to protrude from a hexagonal cylinder 27 installed inside the handling cylinder 14 .

In short, according to the present invention as set forth in claim 1, it is possible to shed a large processed material with the tip side cusps sandwiching the cusp support member, and the fixed side cusps can be relatively thin such as ear cuts. It is possible to thresh small processed materials, improve the threshing performance, and greatly reduce losses such as unhandled granules and cut granules.

According to the present invention of claim 2, in addition to the effect of claim 1, since the teeth are fixed to the inner hexagonal body, the teeth themselves can be lengthened and fixed to the tip side of the teeth. The grain shedding treatment with the side can be performed more effectively.

The side view of the general-purpose combine according to the embodiment of the present invention Cross-sectional side view of the general-purpose threshing device of the same combine harvester Vertical cross-sectional view of the same threshing device Side sectional view of a threshing device of another embodiment of the present invention Back sectional view of the main part of the threshing device of another embodiment same as the above

Next, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 shows a general-purpose combine harvester that automatically cuts and harvests crop stalks such as rice, barley and rapeseed that stand up in a field. In a general-purpose combine harvester in the form of throwing into a threshing process, a harvesting section 6 consisting of a raking reel 3, a cutting blade 4, a table 5, a raking auger, etc. is provided in front of a vehicle body 2 equipped with a traveling crawler 1. A feed conveyor in a feeder house 7 installed from the left side to the rear of the reaping unit 6 raises and conveys the received stalks rearward and upward, and feeds them into the threshing unit 8 at the rear of the vehicle body. It's becoming

On the lateral side of the harvesting unit 6, a driving operation unit including an operation box 9, a driver's seat 10, etc. is arranged, and a grain tank 11 for temporarily storing threshed grains is mounted behind it. there is When the grain in the tank is full, it is discharged to a predetermined position outside the machine by a discharge auger 12. - 特許庁

Next, the configuration of the general-purpose threshing apparatus 8 shown in FIGS. 2 and 3 will be described.

A handling cylinder 14 is mounted on a shaft in the handling chamber 13 and provided to rotate together with a rod-shaped handling tooth 15 .

A helical impeller 16b is provided on the cone portion 16a on the starting end side of the handling drum 14 to take in the cut stalks. A receiving net 17 is stretched on the lower wall of the handling chamber 13, and an outlet 18 for discharged straw is opened at the end side thereof. It is supposed to be judged.

In addition, a feed guide plate 20 is provided on the inner surface of the upper cover of the handling chamber 13 so as to feed the material to be treated backward with respect to the rotation of the handling cylinder 14 .

Below the receiving net 17, a wind sorting section including a swing sorting device 21, a winnow 22 and the like is provided.

In the general-purpose threshing apparatus configured as described above, the intermediate portion of each pliable tooth 15 that rotates together with the threshing drum 14, that is, between the tip of the pliable tooth 15 and the fixed side of the base end of the pliable tooth 15, A bristle tooth support member 23 is provided on the side opposite to the rotation direction of the bristle tooth support member 23 for contacting and supporting the bristle tooth support member 23, and is parallel to the shaft 28 of the bristle drum 14 and extends over the front and rear plates 24 and 25 of the bristle drum 14. Mounting is supported.

According to this, it is possible to thresh a large object to be processed by the tines 15 on the tip side sandwiching the cusp support member 23, and to shed relatively small objects to be processed such as ear cuts by the tines 15 on the base fixing side. As a result, it is possible to improve the shedding performance and greatly reduce the loss of unhandled granules and cut granules.

The tooth support member 23 does not necessarily have to be rod-shaped as shown in the figure, and may be configured by a pipe member, a flat plate member, an L-shaped member, or a combination of a pipe member and a flat plate member. Further, each member may be configured to have a notch having a shape along the outer periphery of the handle.

Further, the handling teeth 15 are configured to be mounted and supported so as to protrude from a hexagonal cylinder 27 installed inside the handling cylinder 14 . According to this configuration, since the servicing teeth 15 are fixed to the hexagonal body 27 inside the servicing cylinder 14, the servicing teeth themselves can be made longer than those in which the servicing teeth 15 are protruded from the rasp bar. It is possible to more effectively perform the shedding treatment on the tip end side and the fixed side of the.

The front side plate 24 of the handling cylinder 14 is provided between the front end of the handling cylinder 14 and the cone portion 16a, and the front end of the handling tooth support member 23 is fixedly supported. An intermediate plate 26 supports the intermediate portion of the handling cylinder 14 .

The outer circumference of the handling cylinder 14 may be circular or polygonal (hexagonal). , the intermediate plate 26 can also be polygonal (dodecagonal).

In another embodiment shown in FIGS. 4 and 5, a guide plate 29 having a function of feeding the material to be treated forward is provided on each flat surface of the hexagonal cylinder 27 installed inside the handling cylinder 14. . In other words, the guide plate 29 is configured so that the other end of the guide plate 29 in the front-rear direction of the handling cylinder 14 is on the lagging side in the rotation direction of the handling cylinder with respect to the one end, so that the guide plate 29 is positioned inside the bristle tooth support member 23 (base end). By returning the material that has entered the side) to the front side from the original position, the processing can be sufficiently performed over time, and the single granules can be efficiently formed.

The outer peripheral side of the guide plate 29 is substantially parallel to the surface of the hexagonal cylinder 27 to which the guide plate 29 is attached.

Further, the outer peripheral side of the guide plate 29 is an arcuate curve along the circumscribed circle of the hexagonal body 27 . Moreover, on the outer peripheral side of the guide plate 29, the height on the advancing direction side with respect to the rotating direction of the handling cylinder 14 is lower than the height on the lagging side.

It should be noted that the guide plate 29 may not only be provided detachably, but may also be configured so that it can be attached so that the angle can be adjusted.

8 threshing device 14 threshing drum 15 pliers 23 pliers support member 24 front plate 25 rear plate 27 hexagonal barrel 29 guide plate

Claims (2)

In the middle of the teeth (15) rotating together with the threshing cylinder (14) of the general-purpose threshing device (8), there is a tooth custody support member ( 23), and is mounted and supported on the front and rear plates (24) and (25) of the handling cylinder (14) in parallel with the axis (28) of the handling cylinder (14). Threshing equipment. A threshing device for a general-purpose combine according to claim 1, characterized in that said threshing teeth (15) are mounted and supported so as to protrude from a hexagonal cylinder (27) installed inside said threshing drum (14).

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