JP2977735B2 - Combine grain tank structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain tank structure in which threshed and sorted kernels are transported by a bucket conveyor and fed from above into long grain tanks which are long before and after.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned Glen tank structure has
Connect the end of the bucket conveyor that lifts the threshing and sorted kernels, and the screw conveyor that is inserted horizontally into the tank at the front of the long Glen tank upper and lower,
In the screw case of the screw conveyor, a scattered discharge port toward the rear of the Glen tank was formed, and the grains were scattered into the Glen tank by discharge blades provided on the screw of the screw conveyor.

[0003]

As described above, the grains are scattered and thrown rearward from the screw conveyor provided at the front of the upper portion of the Glen tank, so that the grains are extended to above the rear of the Glen tank. It is possible to accumulate, but when the kernels accumulate at the scattering discharge port of the screw case, it is not possible to input further kernels, and the upper part of the Glen tank in front of the screw conveyor is dead space. Therefore, the storage capacity of the Glen tank was not fully utilized.

[0004] As a means for solving such a problem, a mechanical diffusion device such as a spiral body or a diffusion blade driven and rotated at the upper portion of the Glen tank is provided to equalize the grain accumulated in the tank. It is also considered to perform flat processing, but the production cost of the entire Glen tank is high, and there is also a problem that the diffusion device becomes an obstacle during maintenance such as cleaning and inspection of the tank. There were difficulties.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for recovering grains by fully utilizing the tank capacity by sufficiently supplying the grains to the upper portion of the Glen tank without adding a special diffusion device. Is to do.

[0006]

According to a first aspect of the present invention, there is provided a feeder for conveying a grain which has been threshed and sorted, at the end of a bucket conveyor, and at a position near one end in the front-rear direction of an upper portion of a long and long Glen tank. The screw conveyor of the screw conveyor of this screw conveyor is connected to a screw case, and the screw case of the screw conveyor has a scattered discharge port toward the other end in the front-rear direction of the Glen tank.
The screw conveyor has an auxiliary discharge port formed on the screw case, the auxiliary discharge port being directed to the side opposite to the scattered discharge port, and the auxiliary discharge port is provided with an opening / closing lid.

[0007] The characteristic configuration of the invention according to claim 2 is the first aspect.
In addition to the characteristic configuration of the invention, a lid opening means for automatically opening the opening / closing lid based on a pressure increase due to grain clogging in the screw conveyor is provided.

According to a third aspect of the present invention, the end of the bucket conveyor for lifting the threshed-selected kernels and the laterally inserted into the tank at a position near one end in the front-rear direction of the upper part of the Glen tank which is long in the front-rear direction. And the screw case of the screw conveyor, in the screw case of the screw conveyor, formed a scattered discharge port toward the other end in the front-rear direction of the Glen tank, the screw case of the screw conveyor, the scattered discharge port is It is characterized in that a normally open auxiliary discharge port is formed in a different direction.

[0009]

According to the first aspect of the present invention, since the auxiliary discharge port with the opening / closing lid is formed in the screw case, the auxiliary discharge port is closed until the scattered discharge port is clogged with the accumulated grains.
A sufficient amount of grain can be reliably supplied to the other end in the front-rear direction in the Glen tank to which the splatter discharge port is directed, and when the splatter discharge port is clogged with the accumulated grain, the auxiliary discharge port is opened to open the auxiliary discharge port. The grain can be reliably supplied to the one end side in the Glen tank to the upper part, and the effective storage capacity of the Glen tank can be sufficiently improved.

According to the second aspect of the present invention, not only can the effective storage capacity of the Glen tank be improved by the characteristic configuration of the first invention, but also if the scattered discharge ports of the screw conveyor are clogged with the accumulated grains, the lid opening means can be used. The opening / closing lid is automatically opened.

According to the third aspect of the present invention, since the forward auxiliary discharge port which is always open is formed in the screw case, the grain discharge tank is mainly directed to the scatter discharge port until the scatter discharge port is clogged with the accumulated grain. When the grains are supplied to the other end in the front-rear direction and the scattered discharge ports are clogged with the deposited grains, the grains are discharged from the auxiliary discharge ports, and the effective storage capacity of the Glen tank can be sufficiently improved.

[0012]

According to the first aspect of the present invention, it is possible to sufficiently supply grains throughout the Glen tank without specially providing a diffusion device or the like.

According to the second aspect of the present invention, the grains can be sufficiently supplied over the entire interior of the Glen tank without specially providing a diffusion device and the like, and the opening operation of the auxiliary discharge port is automatically performed. The handling was also high.

According to the third aspect of the present invention, the grains can be sufficiently supplied to the entire inside of the Glen tank without specially providing a diffusion device and the like, and a means for opening and closing the auxiliary discharge port is not required, and the structure is simpler. And the practical advantage is high.

[0015]

【Example】

(Embodiment 1) FIGS. 1 and 2 show a whole-culm-in type combine which is an example of a combine to which the present invention is applied. The combine combines a harvesting pretreatment device 2 with a front part of the machine body traveling by the crawler type traveling device 1 so as to be able to move up and down freely, a threshing device 3 on the machine body, a Glen tank 4 for storing threshed sorted grains, It has a structure in which an unloader 7 that discharges grains from the Glen tank 4, a boarding operation unit 5, a driving unit 6, and the like are mounted.

A bucket conveyor 8 for feeding the first grain from the threshing apparatus 3 is erected between the threshing apparatus 3 and the longitudinally long Glen tank 4 and at a position close to the front end side in the Glen tank 4. The screw conveyor 9 inserted sideways is connected to the upper end of the bucket conveyor 8.

As shown in FIGS. 3 and 4, the screw conveyor 9 has a screw case 9a horizontally supporting a screw 9b, and a scattered discharge port 10 formed in the screw case 9a is provided in the left and right direction of the Glen tank 4. A screw 9b is provided on the screw 9b with a discharge blade 9c that opens backward at the center portion and discharges the kernel from the splatter discharge port 10 rearward, and preferentially scatters and inputs the kernel from the rear portion in the Glen tank 4. It is configured as follows.

As shown in FIG. 5, the screw conveyor 9
The auxiliary discharge port 12 is formed in the screw case 9a in a state in which the auxiliary discharge port 12 faces forward, and the opening / closing lid 13 is attached to the auxiliary discharge port 12 so as to be swingably openable and closable around a fulcrum 14 on the upper end side, and the open / close lid 13 is closed. A biasing spring 15 is provided, and when the scattering discharge port 10 is closed by the grains accumulated in the tank and the pressure due to the grain clogging in the screw conveyor 9 rises more than a set value, the opening / closing lid 13 resists the spring 15. It is configured to open automatically. Further, the biasing force of the spring 15 is made adjustable by a screw adjuster 16 so that the automatic opening characteristic of the opening / closing lid 13 can be changed and adjusted.

Two tip outlets 17 are formed in the tip wall of the screw case 9a.
8 is provided so as to be swingable and openable around a support shaft 19 on the upper end side, and a spring 20 for closing and biasing the front end opening / closing lid 18 is provided with a screw adjusting section 21
The opening and closing lid 18 is automatically opened when the pressure rises due to grain clogging in the screw conveyor 9.

That is, the auxiliary discharge port 12 and the tip discharge port 17 are closed until the scattered discharge port 10 facing backward is clogged with the accumulated grain, and the discharge tank 11 closes the Glen tank 4.
A sufficient amount of grains is preferentially injected into the rear portion of the
When the grains are clogged with the accumulated grains, the auxiliary discharge port 12 and the tip discharge port 17 are automatically opened, and the front and front ends of the screw conveyor 9 in the Glen tank 4 are opened from the auxiliary discharge port 12 and the tip discharge port 17. It is configured to supply grains to improve the effective storage capacity of the Glen tank 4.

(Embodiment 2) As shown in FIG.
In the screw conveyor 9 for feeding grains to the Glen tank 4 similar to the above, the forwardly-opened six auxiliary discharge ports 22, 23, and 24 which are always open are formed in a long hole shape on the left and right and smaller than the rearward discharge port 10. In addition, each of the two left and right parts is formed obliquely upward, directly in front, and obliquely downward, and the two end discharge ports 25 are always open in the front end wall of the screw conveyor 9, and a vertically long length is formed. It is formed in the shape of a hole, which is smaller than the rearward scattering emission port 10.

In other words, until the scattered discharge port 10 is clogged with the accumulated grains, the grains are thrown from the scattered discharge port 10 to the rear part of the Glen tank 4 mainly by the discharge blades 11, and the scattered discharge port 10 is accumulated in the grain. When it is clogged with grains, auxiliary outlet 2
The grains are supplied from 2, 23, 24 and the front end discharge port 25 to the front side and the front side of the screw conveyor 9 to the upper side, and the effective storage capacity of the Glen tank 4 is improved.

[Alternative Embodiment] In the first and second embodiments, when the screw conveyor 9 is provided at the rear part in the Glen tank 4, the scattered discharge port 10 is provided forward and the auxiliary discharge port 1 is provided.
2, 22, 23 and 24 will be provided backward. In the first aspect of the present invention, the opening / closing mode and the opening / closing operation configuration of the opening / closing lid 13 can be appropriately changed in design. In the invention of claim 2, in order to open the opening / closing lid 13 automatically, for example, an unstable switching spring for switching between a biased state and an open biased state at a dead point is provided.
The opening and closing cover 13 may be automatically driven to open and close using a driving device such as a motor or a cylinder based on information from a sensor that detects the pressure in the screw conveyor 9. The means for automatically opening the opening / closing lid 13 based on a pressure increase due to grain clogging in the screw conveyor 9 due to the blockage of the screw conveyor 9 is collectively referred to as a lid opening means 15. In the third aspect of the present invention, the shape, size, number, arrangement, and the like of the forward-facing auxiliary discharge ports 22, 23, and 24 that are always open can be appropriately changed in design.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is a longitudinal sectional side view of a main part.

FIG. 4 is a longitudinal sectional front view of a main part.

FIG. 5 is a perspective view of a tip portion of a screw conveyor.

FIG. 6 is a perspective view of a screw conveyor tip side portion in another embodiment.

[Explanation of symbols]

 Reference Signs List 4 Glen tank 8 Bucket conveyor 9 Screw conveyor 9a Screw case 10 Scattering discharge port 12 Auxiliary discharge port 13 Opening / closing lid 15 Lid opening means 22 Auxiliary discharge port 23 Auxiliary discharge port 24 Auxiliary discharge port

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-59455 (JP, A) JP-A-4-30833 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01F 12/46-12/60 B65G 33/14 B65G 33/24

Claims (3)

(57) [Claims] 1. A screw conveyor which is inserted laterally into a tank at the end of a bucket conveyor (8) for lifting threshed-selected kernels and at a position near one end in the front-rear direction above a long and long Glen tank (4). (9), wherein the screw case (9a) of the screw conveyor (9) is provided with a scattered discharge port (10) toward the other end in the front-rear direction of the Glen tank (4). The scattered discharge port (1) of (9)
The auxiliary discharge port (12) directed to the opposite side of the screw case (9a) is formed in the screw case (9a), and the auxiliary discharge port (12) is provided with an opening / closing lid (13). Glen tank structure. 2. The opening / closing lid (13) based on a pressure increase due to grain clogging in the screw conveyor (9).
The Glen tank structure of a combine according to claim 1, further comprising a lid opening means (15) for automatically opening the lid. 3. A screw conveyor which is laterally inserted into a tank at the end of a bucket conveyor (8) for feeding threshed and sorted grains and at a position near one end in the front-rear direction above a long and long Glen tank (4). (9), wherein the screw case (9a) of the screw conveyor (9) is provided with a scattered discharge port (10) toward the other end in the front-rear direction of the Glen tank (4). (9) The grain tank structure of a combine, wherein an auxiliary discharge port (12) which is always open is formed in the screw case (9a) in a direction different from the scatter discharge port (10). .