JPH07255256A - Self-throwing thresher - Google Patents

Abstract

(57) [Summary] [Purpose] A feed chain is provided that feeds the threshed culms in the handling barrel rotation axis direction while the threshed culms are inserted from the handling mouth into the handling room. In a self-throwing threshing device provided with a net, the circumferential length of the net is increased to enable high-load threshing due to an increase in the area of the net, and moreover, the generation of clams on the threshed culm is suppressed. [Structure] The receiving net 6 is arranged in a large part in the circumferential direction of the handling chamber 3 extending from the lower side to the upper side of the handling port C, and the processed material from the receiving net 6 is sent to the upstream side in the transfer direction of the feed chain 5 to convey the material forward. 17 is arranged above the handling port C, and the transport device 17 for forward feed is provided.
The threshed material from the feed chain 5 to the handling cylinder 4
Conveying device 1 for back-feeding, which supplies the material to the sorting section on the opposite side to
9 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a feed chain for feeding a threshed culm in the direction of the rotation axis of the handling barrel while the threshed culm is inserted from the handling mouth into the handling room, and the threshed material is dropped and supplied from the handling room to the sorting section. The present invention relates to a self-throwing type threshing device provided with a receiving net.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a receiving net 21 is arranged in almost the lower half of the handling chamber 3, and a blind plate-like guide plate 22 is arranged in the upper half of the handling chamber 3 to receive the receiving net. The threshed material that has passed through the net 21 is configured to be supplied to the sorting section only by its own weight drop.

[0003]

However, since the receiving net is arranged only in almost the lower half of the handling room, the circumferential length of the receiving net is short, and it is difficult to thresh under high load due to insufficient area of the receiving net. There was room for improvement in terms of improving threshing capacity. An object of the present invention is to increase the circumferential length of the net to enable high-load threshing by increasing the area of the net, and also to sufficiently suppress the increase in the amount of clam rice to the threshed grain culm. The point is that the threshed product from the net is satisfactorily supplied to the sorting section.

[0004]

A feature of the first aspect of the present invention is that a threshing grain culm is provided with a feed chain that is inserted in the handling chamber in the direction of the axis of the handling barrel rotation axis, and a sorting unit is provided from the handling chamber. In a self-throwing type threshing device provided with a net for dropping threshed products to the inside, the net is placed in the majority of the circumferential direction of the handling room from below the handling mouth to above and feeds the threshed products from the handling net. The transport device for forward feed, which is sent to the upstream side in the chain transfer direction, is placed above the handling port, and the threshing material from the transport device for forward feed is dropped and supplied to the sorting section on the side opposite to the feed chain with respect to the handling barrel. This is due to the provision of a back feeding transport device.

A characteristic configuration of the second invention is that, in addition to the characteristic configuration of the first invention, the forward feeding device and the backward feeding device are formed on a screw conveyor.

In addition to the characteristic configuration of the second aspect of the present invention, the characteristic configuration of the third aspect of the present invention is such that a screw is disposed outside the front side plate of the handling chamber to form the back feed conveying device, and the handling chamber front side plate is provided. Is also used as a part of the screw cylinder.

[0007]

According to the structure of the first aspect of the invention, since the receiving net is arranged in a large portion in the circumferential direction of the handling chamber extending from the lower side to the upper side of the handling port, the area is increased by increasing the circumferential length of the receiving network. Sufficient high-load threshing can be realized. Then, the threshing processed product from the receiving net is sent to the upper side in the transfer direction of the feed chain by the forward feeding transport device arranged above the handling port, and the threshing processed product from the forward feeding transport device is fed by the back feeding transport device. Since it is configured to drop and supply to the sorting section on the side opposite to the feed chain with respect to the handling cylinder, the threshing processed material that has passed through the receiving net is the feed chain while the receiving net is placed above the handling chamber. It is possible to surely suppress the inconvenient situation of becoming the clams for the threshed grain culms to be sent, and to satisfactorily supply the threshed product to the sorting section.

According to the second aspect of the invention, since the characteristic configuration of the first aspect of the invention is basically provided, high-load threshing can be realized by increasing the circumferential length of the receiving net, and clam rice for threshing culms. The generation can be effectively suppressed. Furthermore, since the front-feeding transporting device and the back-feeding transporting device are formed on a screw conveyor that can be made compact, the layout design of both of these transporting devices is facilitated, and a compact, high-performance self-throwing threshing device is realized. it can.

According to the third aspect of the invention, since the characteristic configuration of the second aspect of the invention is provided, high-load threshing can be realized by increasing the circumferential length of the receiving net and effective generation of clam rice on threshing culms. In addition, the forward feeding device and the back feeding device can be compactly arranged. Furthermore, since the screw of the feeding device for the back feeding is arranged outside the front side plate of the handling chamber, the front-back length of the handling chamber can be shortened, and the threshing device can be made more compact. Moreover, since the front plate of the handling room is also used as a part of the screw cylinder, the projecting amount of the feeding device for the back feed can be reduced to make the threshing device more compact, and at the same time, the front plate of the handling room Can be reinforced by the screw cylinder of the conveying device for deep feed, which is also advantageous in terms of strength.

[0010]

As a result, it is possible to provide a higher-performance threshing device capable of performing high-load threshing by increasing the circumferential length of the receiving net, and capable of sufficiently suppressing the generation of clam rice in the threshing culm. became. Particularly, according to the second and third aspects of the present invention, it is possible to easily provide a small-sized, high-performance self-throwing threshing device.

[0011]

EXAMPLE As shown in FIGS. 1 to 3, in constructing a threshing device 1 to be mounted on a self-removing combine, a handling barrel 4 can be driven and rotated around an axial center in the machine longitudinal direction in a handling chamber 3. Provided,
A feed chain 5 is provided to feed the grain stalks in a laterally tilted posture supplied from the reaping unit on the left side outside the drawing into the handling chamber 3 in a state in which the handling barrel 3 is inserted into the handling chamber 3. A receiving net 6 is provided for leaking and supplying.

The sorting section 2 is provided with an oscillating sorting case 7, a wind picking sardine lees 8, a 1st item collecting screw conveyor 9, a 2nd item collecting screw conveyor 10, a dust blower 11 and the like, and a receiving net 6 The leaked processed material and the processed material discharged from the end of the handling chamber 3 are sieve-sorted and air-sorted while swingingly transferred rearward by the swing sorting case 7, and the grain is transferred from the No. 1 product recovery screw conveyor 9 It is configured to be sent to the Glen tank and to return the insufficiently sorted second product from the second product recovery screw conveyor 10 through the reducing device 12 to the front part of the swing sorting case 7.

The first net portion 6a extending from the lower lip plate 13 below the handle C formed along the feed chain 5 to the straw cutting blade 14 on the far side of the handle chamber 12 is disposed below the handle barrel 4 to handle the handle. The second net portion 6b extending from the upper lip plate 16 with the straw cutting blade 15 above C to the straw cutting blade 14 on the back side of the handling chamber 3 is arranged above the handling barrel 4, and the first and second receiving net portions 6a and 6b are provided. The receiving net 6 consisting of is disposed in a large part in the circumferential direction of the handling chamber 3 extending from the lower side to the upper side of the handling port C. That is, by adding the second receiving net portion 6b located above the handling cylinder 4, the area is increased by increasing the circumferential length of the receiving net 6, and a sufficient high-load threshing is realized. is there. In addition, the first receiving net portion 6a
The mesh of the second receiving net portion 6b is further increased so that the processed material passes through the second receiving net portion 6b and is smoothly discharged upward from the handling chamber 3.

Then, a pre-feeding screw conveyor 17 for sending the processed material from the second receiving net portion 6b to the upstream side in the transfer direction of the feed chain 5 is arranged above the handling port C in a state of substantially the entire length of the handling chamber 3. Then, the processed material sent from the screw conveyor 17 for forward feed is interlocked with the handling cylinder 4 and the chute 1 is provided on the side opposite to the feed chain 5 with respect to the handling cylinder 4.
A back-feeding screw conveyor 19 for dropping and supplying to the sorting unit 2 by 8 is provided in a state of being interlocked with the forward-feeding screw conveyor 17. That is, by the transporting action of both screw conveyors 17 and 19, the processed material that has passed through the second receiving net portion 6b is supplied to the sorting section 2 satisfactorily so as not to become the chaff for the threshed grain culms sent by the feed chain 5. It is configured as follows. In addition, a compact and high-performance self-thinning threshing device is formed by using the screw conveyors 17 and 19 which can be made compact.

In forming the depth-feeding screw conveyor 19, the screw 19a is arranged outside the front side plate 20 of the handling chamber 3 to shorten the front-rear length of the handling chamber 3 so that the threshing apparatus 1 as a whole is made compact. , The handling room front side plate 20 to the screw cylinder 1
Backward feed screw conveyor 1 that also serves as a part of 9b
The threshing device is made compact by reducing the protruding amount of 9 and the handling chamber front side plate 20 is reinforced by the screw cylinder 19b.

[Other Embodiment] The structure of the receiving net 6 can be appropriately selected, and when the receiving net 6 is arranged in a large part in the circumferential direction of the handling chamber 3 extending from below the handling port C to above the handling port C, the receiving net 6 is handled. Suitable for the specific configuration, such as making it continuous over the entire circumferential direction, dividing into three or more parts in the circumferential direction of the handling room, intermittently arranging in the circumferential direction of the handling room, appropriately selecting the placement range, etc. It can be changed. In the first aspect of the present invention, well-known conveyors such as a belt conveyor can be used in place of the forward feed screw conveyor 17, which are generically referred to as the forward feed conveyor device 17, and the depth feed screw conveyor 19 is also used.
Instead of the above, well-known conveyors such as a belt conveyor can be used, and they are collectively referred to as a back feeding device 19. The arrangement and drive configuration of the forward feed transport device 17 in the direction of the handling cylinder rotation axis, and the drive configuration of the back feed transport device 19 can be appropriately changed. In the first and second inventions, the back feeding device 19 may be provided separately from the handling room front side plate 20. The usage form of the threshing device and the target of harvesting do not matter.

It should be noted that reference numerals are added to 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]

1 is a vertical side view of the threshing device.

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a view taken along the line BB of FIG.

FIG. 4 is a vertical sectional front view of a main part of a conventional example.

[Explanation of symbols]

 2 Sorting section 3 Handling room 4 Handling barrel 5 Feed chain 6 Receiving net 17 Forward feeding transport device 19 Back feeding transport device 19a Screw 19b Screw cylinder 20 Handling chamber front side plate C Handling port

Claims (3)

[Claims] 1. A feed chain (5) for feeding a grain culm from the handling opening (C) into the handling chamber (3) in the direction of the axis of rotation of the handling barrel (4) is provided, and the handling chamber (3) is provided. From sorting section (2)
A self-threshing threshing device provided with a receiving net (6) for dropping and supplying the threshed material to the handling chamber (3) extending from below the handling opening (C) to above the handling net (6). A pre-feeding transport device (1) that is arranged in a large part in the circumferential direction and sends the threshed material from the receiving net (6) to the upstream side in the transfer direction of the feed chain (5).
7) is arranged above the handling mouth (C), and the threshing processed material from the transport device (17) for forward feeding is on the side opposite to the feed chain (5) with respect to the handling barrel (4). A self-throwing type threshing device provided with a back feeding device (19) for dropping and supplying the sorting part (2). 2. The self-thredding type threshing device according to claim 1, wherein the forward feeding transport device (17) and the back feeding transport device (19) are formed on a screw conveyor. 3. A screw (19a) is arranged outside a front side plate (20) of the handling chamber (3) to form the back feeding device (19), and the handling chamber front side plate (20) is provided. The self-decompression threshing device according to claim 2, wherein the screw cylinder (19b) is also used as a part of the screw cylinder.