JPS6345879Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain storage structure comprising a grain storage tank and a grain delivery spiral provided at the bottom of the tank.

In the storage structure described above, if the entire upper part of the unloading spiral is simply communicated with the tank, too much grain will be supplied to the spiral, which may damage the spiral due to overload or cause grain clogging. Therefore, it is necessary to suppress the amount of grain supplied to the spiral body to an appropriate amount, and dust such as straw waste will accumulate in the mounting part of the spiral body and in the tank. It is necessary to be able to take out the accumulated dust to the outside of the tank. and,
In order to satisfy these demands, conventional practice has generally been to provide a guide in the upper part of the spiral body to suppress the amount of grains falling to an appropriate amount, and to provide a wall covering the lower part of the spiral body that can be opened and closed. This structure has the disadvantage that the entire structure is complicated and expensive.

In addition, as a conventional technology in which a guide plate is provided at the top of the spiral body to suppress the amount of grains falling to an appropriate amount,
The combine harvester technology described in Japanese Utility Model Publication No. 52-168850 can be shown, and the conventional technology for opening and closing the lower part of the spiral body can be shown the ventilation dryer technology described in Japanese Utility Model Publication No. 45-3899. . Although each of these prior art techniques has excellent features, they do not allow cleaning by communicating the inside and outside of the tank.

The present invention was developed in view of the above-mentioned circumstances, and satisfies both of the above-mentioned demands at once by adding a structure that can be constructed easily and inexpensively.

Embodiments of the present invention will be described in detail below based on the drawings.

As shown in FIGS. 1 and 2, a threshing device 2 that threshes grain culms while holding and conveying them rearward with a feed chain 1 installed on the left side, and sequentially sorts the threshed grains. and a threshed grain storage tank 4 to which threshed grains are sequentially supplied by a screw conveyor device 3 are mounted on a crawler traveling device 5 in a state in which they are lined up in the lateral direction of the machine body. A disk-shaped cutter 6 that shreds the waste straw after processing and releases it downward is connected to the threshing device 2. In front of the threshing device 2, the grain culms planted in the field are pulled up and harvested, and the harvested grain culms are transferred to the threshing device 2. A driver's seat 8 is provided in front of the tank 4, and as the aircraft advances, the grain culms planted in the field are harvested and the threshed grains are sequentially transferred into the tank 4. The system is configured to automatically and continuously perform the work of storing data in the storage area.

A leveling screw 9 is provided at the top of the tank 4, and the stored grains are placed at the bottom of the tank 4.
A spiral body 10 is provided on the rear side to carry out the tank 4.
A screw conveyor-type grain carrying device 11 for carrying the grains from the spiral body 10 out of the machine is provided on the rear side, thereby dispersing the threshed grains throughout the tank 4. It is configured so that the grains can be stored in the same state as they are, and it is also configured so that the stored grains can be transferred to a transport vehicle or the like outside the machine.

In configuring the grain carrying device 11, a second carrying section 11 is disposed above the first carrying section 11A fixed at the proximal end.
B is attached so as to be rotatable around the vertical axis X as described later, and the third conveyor section 11c is attached to the upper part of the second conveyor section 11b so as to be operable to oscillate up and down using a hydraulic cylinder or the like. By rotating the second conveying section 11B, the second conveying section 11B is configured to be able to switch between a posture in which it protrudes laterally outwardly of the machine body and a retracted posture in which it is located on the side of the machine body. The structure is such that it can be switched and swung into a position that overlaps the upper part of the body.

To configure the operation structure of the second conveyance section 11B, as shown in FIGS. 3 and 4, an operation shaft 12 is rotatably installed in the upper part of the tank 4,
A rotating operation handle 13 is connected to the front end of the operating shaft 12 by a bevel gear, one end of a transmission shaft 14 is connected to the rear end of the operating shaft 12 by a bevel gear, and the other end of the transmission shaft 14 is connected to the outer periphery of the second conveying section 11B. It is interlockingly connected to a gear 15 fixed to the surface. A disk-shaped member 16 is rotatably attached to the handle 13.
Engagement holes 17 are formed at appropriate intervals in the circumferential direction, and engagement holes are provided in the upper part of the tank 4 that can be swung to switch between a position in which the engagement holes 17 are engaged and a position in which the engagement is released. A piece 18 is provided, and a handle 1 is provided.
The configuration is such that the second conveyance section 11B can be rotated by the rotation of 3, and the second conveyance section 11B can be reliably fixed at a desired rotational position by switching the engagement piece 18 to the engagement position. It has been done.

As shown in FIG. 2 and FIG. 5 A and B, the bottom of the tank 4 corresponding to the installation location of the grain conveying spiral 10 is opened, and the open edge portions 4a and 4 are opened.
A cylindrical case 19 is rotatably provided and covers the spiral body 10 in sliding contact with the spiral body 10. tank 4
A support body 21 is provided at a lower end portion corresponding to both ends of the cylindrical case 19 to externally support the cylindrical case 19 in a rotatable manner. The cylindrical case 19 has grain receiving ports 20, 20 arranged in a row on both circumferential sides of the portion of the cylindrical case 19 facing into the tank 4 at the same time. It includes a gutter-like portion 19A that closes the edge portions 4a, 4a, and a grain-intrusion prevention portion 19B that faces the gutter-like portion 19A. Further, a rotation operation lever 22 is connected to the cylindrical case 19, and a bolt 23 for abutting and fixing the rotation of the cylindrical case 19 is attached to the support body 21. By rotating the cylindrical case 19 so that the two grain receiving ports 20, 20 are both located in the tank 4, the grains in the tank 4 are transferred to the spiral body 10.
The cylindrical case 1
9 to a state where one of the grain receiving ports 20 is located outside the tank, the cylindrical case 1
The structure is such that dust accumulated in the inside of the tank 9 and the tank 4 can be removed to the outside of the tank 4 through two grain receiving ports 20, 20.

In addition, the grain receiving opening 20 may be formed in the cylindrical case 19 in a continuous manner in the longitudinal direction of the cylindrical case 19, instead of being formed in an intermittent manner in the longitudinal direction of the cylindrical case 19. In either case, as shown in Fig. 6 (a) and (b), if the width along the circumferential direction becomes larger as the direction of grain transport is lower, the width along the circumferential direction becomes larger. This may be convenient for carrying out the grain delivery while ensuring that the grains are received uniformly over the entire width.

Various specific structures for rotatably supporting the cylindrical case 19 are possible, and any structure may be used.

Moreover, the present invention can be installed not only on combine harvesters but also on various agricultural machines.

In summary, the characteristic configuration of the grain storage structure according to the present invention is that the bottom of the tank 4 corresponding to the installation location of the spiral body 10 is opened, and the cylindrical case 19 covering the spiral body 10 is placed at the bottom of the tank 4. The cylindrical case 19 is provided with two receiving ports 20, 20 that open into the tank 4 simultaneously at two locations in the circumferential direction of the cylindrical case 19. , a gutter-like portion 19A that closes the open edge portions 4a, 4a, and a grain entry prevention portion 19B facing the gutter-like portion 19A, and the two receiving ports 20, 2.
0 is formed at a position where it opens simultaneously to the inside and outside of the tank 4 by rotating the cylindrical case 19, and this characteristic configuration provides the following effects.

That is, the cylindrical case 19 that covers the spiral body 10
and grain receiving ports 20 provided at two locations in the circumferential direction of the grain receiving port 20.
By rotating the grains in the tank 4, the grains in the tank 4 can be supplied to the spiral body 10 in such a manner that the amount of grains to be supplied to the spiral body 10 is suppressed to an appropriate amount. Moreover, the cylindrical case 19 is
By rotating the grain so that one of the grains is located outside the tank, dust accumulated in the mounting portion of the spiral body 10 and inside the tank 4 can be swept out through the two grain receiving ports 20, 20. For example, the inside of the tank 4 can be easily washed with water. Therefore, with an inexpensive and simple structure that rotatably supports the cylindrical case 19 provided with two grain receiving ports 20, it is possible to meet both demands for cleaning and adjusting the grain supply amount at once. This is a great practical advantage.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the grain storage structure according to the present invention, FIG. 1 is a partially cutaway plan view of the combine, FIG. 2 is a partially cutaway side view of the combine, and FIG. 3 is a diagram showing the operation of the unloading device. A partially omitted cutaway side view of the structure, FIG. 4 is a plan view of the handle attachment part, FIG. 5 A and B are cross-sectional views taken along the line - - in FIG. It is a diagram. 4... Grain storage tank, 4a... Open edge portion,
DESCRIPTION OF SYMBOLS 10... Helix for carrying out grains, 19... Cylindrical case, 19A... Gutter-like part, 19B... Entry prevention part, 20... Grain receiving port.

Claims (1)

[Scope of utility model registration request] In a grain storage structure comprising a grain storage tank 4 and a grain transporting spiral body 10 provided at the bottom of the tank 4, the bottom of the tank 4 corresponding to the installation location of the spiral body 10 is opened, and the spiral body 10
A cylindrical case 19 that covers the tank 4 is rotatably provided in sliding contact with the open edge portions 4a, 4a at the bottom of the tank 4, and the cylindrical case 19 is installed at two locations in the circumferential direction of the cylindrical case 19 at the same time. 4, and the open edge portion 4.
A gutter-like portion 19A that closes a, 4a, and a gutter-like portion 19
A grain entry prevention part 19B facing A, and the two receiving ports 20, 20 can be opened into the tank 4 by rotating the cylindrical case 19.
A grain storage structure characterized in that it is formed at a position that opens simultaneously on the inside and outside of the grain storage structure.