JPH07274702A - Grain-storing member of combine harvester - Google Patents

Abstract

PURPOSE:To shorten a grain-recovering time from a grain tank in a combine harvester provided with a screw conveyer for laterally carrying grains in the bottom part of a grain tank and with a vertically carrying screw conveyer for lifting the grains carried from the laterally grain-carrying screw conveyer are disposed. CONSTITUTION:By-passes 7a, 7b having openable lids 8, respectively, and used for allowing grains to flow from a grain tank 1 into a vertically carrying screw conveyer 4, detection means 11a, 11b for detecting whether the inlets of the by-passes 7a, 7b are closed with the grains in the tank or not, and operation means 12a, 12b for automatically opening the openable lids 8, 8 so as to be opened on the basis of information from the detection means 11a, 11b only in a state that the inlets of the by-passes 7a, 7b are closed with the grains in the tank, respectively, are disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain of a combine grain provided with a horizontal feed screw conveyor at the inner bottom of a grain storage grain tank and a vertical feed screw conveyor for lifting the grain from the horizontal feed screw conveyor. Regarding the grain storage section.

[0002]

2. Description of the Related Art Conventionally, in order to prevent conveyance jamming on a vertical feed screw conveyor, the vertical feed screw conveyor has a much larger carrying capacity than the horizontal feed screw conveyor, and the grain is fed vertically only from the horizontal feed screw conveyor. It was configured to feed the screw conveyor.

[0003]

However, as the harvesting work speeds up, the ratio of the time required to collect the grains from the grain tank to the total work time increases, but as in the conventional case, only the horizontal feed screw conveyor is used. Only by supplying grains to the vertical feed screw conveyor, the grain recovery time from the grain tank was long, and there was room for improvement in terms of improving work efficiency. An object of the present invention is to shorten the grain collection time from the grain tank without changing the carrying capacity of the horizontal feed screw conveyor and the vertical feed screw conveyor.

[0004]

A characteristic configuration of the present invention is to provide a horizontal feed screw conveyor at the inner bottom portion of a grain storage grain tank, and to provide a vertical feed screw conveyor for lifting grains from the horizontal feed screw conveyor. In the provided combine, a bypass with an opening / closing lid for allowing the grains to naturally flow from the grain tank to the vertical feed screw conveyor is provided above the horizontal feed screw conveyor, and whether or not the bypass inlet is closed by the grain in the grain tank. And a means for automatically opening and closing the opening / closing lid so as to open only when the bypass inlet is closed by the grain in the grain tank based on the information from the detecting means. It is in.

The grain tank may be formed so as to extend to the side of the vertical feed screw conveyor.

[0006]

According to the structure of claim 1, the opening / closing lid is opened by the operating means in a state where the inlet of the bypass is closed by the grain in the grain tank, and the difference in the carrying capacity between the vertical feed screw conveyor and the horizontal feed screw conveyor. Since the amount of grains close to the above will naturally flow from the inside of the grain tank to the vertical feed screw conveyor through the bypass, effectively utilizing the fact that the vertical feed screw conveyor has a larger carrying capacity than the horizontal feed screw conveyor, It is possible to increase the grain supply amount to the vertical feed screw conveyor and reduce the grain collection time from the grain tank by inexpensive modification without changing the carrying capacity of the feed screw conveyor and the vertical feed screw conveyor. And, in the state where the inlet of the bypass is not closed by the grain in the grain tank, the opening / closing lid is closed by the operating means, so that the grain in the vertical feed screw conveyor can be prevented from returning to the grain tank, and as a whole. It is possible to reliably realize rapid grain discharge.

In particular, when the present invention is embodied as described in the second aspect, the grain can be discharged quickly while increasing the storage capacity of the grain tank.

[0008]

As a result, it is possible to shorten the grain collection time from the grain tank without changing the carrying capacity of the horizontal feed screw conveyor and the vertical feed screw conveyor, and it is excellent in economic efficiency and work efficiency. Is now available.

[0009]

EXAMPLE As shown in FIG. 1, in forming a grain storage section for collecting the first product from a threshing device in a combine,
A grain discharge unloader 2 is attached to the grain storage grain tank 1.

To form the unloader 2, a horizontal feed screw conveyor 3 is provided at the inner bottom portion of the grain tank 1, and a vertical feed screw conveyor 4 communicating with the horizontal feed screw conveyor 3 is provided. Provided in a state larger than the horizontal feed screw conveyor 3,
A screw conveyor type discharge cylinder 5 is continuously provided on the upper end of the vertical feed screw conveyor 4, and the discharge cylinder 5 is attached to be vertically swingable by a hydraulic cylinder and rotatable about a vertical axis by a motor. Grain can be loaded into a carrier. Horizontal feed screw conveyor for stored grains 3
A pressure receiving tool 6 for reducing the load on the horizontal feed screw conveyor 3 and the vertical feed screw conveyor 4 is provided inside the Glen tank 1 above the horizontal feed screw conveyor 3 so as to be activated smoothly.

As shown in FIG. 2, the rear end of the Glen tank 1 is extended to the side of the vertical feed screw conveyor 4 to increase the capacity of the Glen tank 1.

As shown in FIGS. 1 and 3, first and second bypasses 7a and 7b for allowing the grains to naturally flow from the grain tank 1 to the vertical feed screw conveyor 4 are provided above the horizontal feed screw conveyor 3, and 1st and 2nd bypass 7
The slide type opening / closing lid 8 is closed by a return spring 9 and biased to a drive unit 10 such as a solenoid.
First detection means 11a attached to the first bypass 8a for detecting whether or not the entrance of the upper first bypass 8a is closed by the grain in the grain tank 1 based on the grain level in the grain tank 1. , And the lower second bypass 7
The second detecting means 11b for detecting whether or not the inlet of b is closed by the grain in the grain tank 1 based on the grain level in the grain tank 1 is provided, and the first detecting means 11 is provided.
a first operation means 12a for automatically opening and closing the opening / closing lid 8 of the first bypass 7a so that the first bypass 7a is opened only when the first bypass 7a is closed by the grain in the grain tank 1 based on the information from a; Second operating means for automatically opening and closing the opening / closing lid 8 of the second bypass 7b so that the second bypass 7b is opened only when the second bypass 7b is closed by the grain in the grain tank 1 based on the information from the second detecting means 11b. 12b
Is provided.

That is, in a state where the entrance of the first bypass 7a is closed by the grains in the grain tank 1, both opening / closing lids 8 are opened by both operating means 12a and 12b, and the vertical feed screw conveyor 4 and the horizontal feed screw conveyor are opened. The amount of grains close to the difference in the conveying capacity of 3 is fed from the inside of the Glen tank 1 through both the bypasses 7a and 7b to the vertical feed screw conveyor 4
To the second bypass 7b and only the inlet of the second bypass 7b is closed by the grain in the grain tank 1, and the opening / closing lid 8 of the first bypass 7a is closed by the first operating means 12a to perform the second operation. Second bypass 7 by means 12b
The opening / closing lid 8 of b is opened, and the amount of grain close to the difference in the carrying capacity between the vertical feeding screw conveyor 4 and the horizontal feeding screw conveyor 3 is naturally fed to the vertical feeding screw conveyor 4 from the inside of the grain tank 1 through the second bypass 7b. Inflow, thereby supplying a sufficient amount of grains corresponding to the large conveying capacity of the vertical feed screw conveyor 4 to the vertical feed screw conveyor 4,
It is configured to shorten the time for collecting the grain from the grain tank 1. Further, in a state where the entrances of both bypasses 7a and 7b are not closed by the grain in the grain tank 1, both opening / closing lids 8 are closed by both operating means 12a and 12b, and the grain in the vertical feed screw conveyor 4 is changed to the grain tank. It is configured so that it does not return to within 1.

[Other Embodiments] The specific structure for forming the bypasses 7a and 7b can be appropriately changed, and the number of the bypasses 7a and 7b to be installed is not limited. The type of the opening / closing lid 8 of the bypasses 7a, 7b can be appropriately changed to a slide type or a swinging type, and the specific configuration of the drive unit 10 for opening / closing the opening / closing lid 8 can be an electric type or a hydraulic type depending on the type of the opening / closing lid. Can be selected as appropriate. Detection means 1 for detecting whether or not the inlets of the bypasses 7a, 7b are closed by the grains in the Glen tank 1.
The type and arrangement of 1a and 11b can be selected appropriately. The operation mode of the operating means 12a, 12b for automatically opening / closing the opening / closing lid 8 can be set as appropriate, and the opening / closing lid 8 is opened only when the entrances of the bypasses 7a, 7b are closed by the grains in the grain tank 1. Just do

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] Vertical side view of the Glen tank

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

FIG. 3 is a view taken along the line BB of FIG. 1 (a) closed state of the opening / closing lid (b) open state of the opening / closing lid

[Explanation of symbols]

 1 Glen Tank 3 Horizontal Feeding Screw Conveyor 4 Vertical Feeding Screw Conveyor 7a, 7b Bypass 8 Open / Close Lid 11a, 11b Detecting Means 12a, 12b Operating Means

Claims (2)

[Claims] 1. A vertical feed screw conveyor (4) for feeding a grain from the horizontal feed screw conveyor (3), wherein a horizontal feed screw conveyor (3) is provided at an inner bottom portion of the grain storage grain tank (1). ) Is provided, the bypass (7a, 7b) with an opening / closing lid (8) for allowing the grains to naturally flow from the Glen tank (1) to the vertical feed screw conveyor (4) is provided with the horizontal feed screw conveyor (3). ) Above, and detecting means (11a, 11b) for detecting whether or not the inlet of the bypass (7a, 7b) is closed by the grain in the Glen tank (1).
And opening and closing so as to open only when the inlet of the bypass (7a, 7b) is closed by the grain in the grain tank (1) based on the information from the detecting means (11a, 11b). A combine grain storage part provided with operation means (12a, 12b) for automatically opening and closing the lid (8). 2. The grain storing part of the combine according to claim 1, wherein the grain tank (1) is formed to extend to a side part of the vertical feed screw conveyor (4).