JPS6112192Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bottom opening/closing device in a conveyor of a threshing machine.

In other words, when changing operations for rice and wheat or harvesting seeds, the bottom of the conveyor can be opened to facilitate cleaning to completely remove grains, etc. While not weakening the gutter plate, it is possible to securely close and fix the bottom cover that opens and closes the lower part of this spiral conveyor, and to prevent grains from accumulating at the bottom of the gutter plate. The aim is to provide a simple structure that can be transferred to other places.

Next, a practical example shown in the drawings will be explained.

Figure 1 shows a cross-sectional view of a threshing machine mounted on a combine harvester, where 8 is a handling barrel, 9 is a supply port, 10 is a crimp net 11 at the 4th port, 12 is a grain sieve which is a swinging sorter, and 13 is a swing sorter. 14 is a suction port of a suction dust ejector, and 15 is a dust exhaust port.

Reference numeral 16 is a pressure winnowing machine, and a sorting flow grain board 18 is installed diagonally below the grain sheave 12 in front of the extension plate 17 on the lower surface of the winnowing machine in front of the pressure-pressing winnow. Above the curved gutter plate 3 that forms a gutter bottom between the lower tip and the lower part of the sorted grain plate 18, the first spiral conveyor 1 is mounted on a shaft, and the second gutter below the stroke rack 13 A No. 2 spiral conveyor 19 is mounted on a shaft and configured in the same manner as the conventional type.

An elongated narrow opening 2 along the length of the conveyor 1 is formed at the bottom of the gutter bottom 3 directly below the spiral conveyor 1, and one side of the opening 2 forms the lower side of the sorting flow grain plate 18. A reinforcing frame plate 4 is fixed to the lower surface of the gutter plate 3, but a space C having a substantially triangular shape is formed between the frame plate 4 and the gutter plate 3 whose side cross section is approximately L-shaped. Both ends of the frame plate 4 are fixed to the lower surface of the gutter plate 3 by spot welding so that the frame plate 4
A bolt 6 is vertically provided so as to extend downward from the horizontal lower surface of the space C, and the bolt 6 is fixedly fixed with its head facing inside the space C.

Reference numeral 5 denotes a curved bottom cover, and a plate portion 20 that matches the opening 2 is adhered to the upper surface, that is, the inner surface of the bottom cover, so that the opening 2
Support shaft 2 mounted below the gutter plate 3 on the other side
A bent portion 22 formed on the other end side of the bottom cover 5 is rotatably attached to the frame plate 4 on one end side of the bottom cover 5.
An extension end 23 is formed which can be joined to the horizontal lower surface of the bolt, and a hole 24 into which the bolt 6 is inserted is formed in the extension end 23. A plurality of bolts 6 and holes 24 are provided, and each bolt 6 has a butterfly. It is configured such that a shaped nut 7 can be screwed in detachably.

Therefore, the bottom cover 5 pivoted on the support shaft 21 is rotated to align the plate portion 20 with the opening 2, and each bolt 6 is rotated.
When the nut 7 is screwed together and tightened with the bottom cover inserted into the hole 24, the bottom cover 5 will open as shown in FIGS. 1 and 2.
The spiral conveyor 1 approaches the lower part of the spiral conveyor 1 and closes the opening 2, and the gap M between the outer peripheral edge of the spiral conveyor 1 and the plate part 20 becomes the same as the gap N between the other bottom part of the gutter plate 3, and the spiral conveyor 1 closes. The first grain is smoothly transferred by the side walls of the gutter plate 3 and the plate part 20.

In addition, when changing the work of rice and wheat or when collecting seeds, the nut 7 is loosened and removed, and the bottom cover 5 is rotated toward the front of the machine about the support shaft 21 as shown in Fig. 4. It can be opened as shown, and residual particles etc. around the spiral conveyor 1 can be removed and cleaned through the opening 2.

Note that the lower part of the No. 2 spiral conveyor 19 can also be constructed in the same manner as described above.

In this way, the present invention forms a narrow opening at the bottom of the gutter plate on the lower side of the spiral conveyor, and a reinforcing frame plate is placed on the lower surface of the gutter plate along one side of the opening. a bottom cover that is fixed with a space formed therebetween, and that opens and closes the opening from the lower side of the gutter plate;
The other end is pivoted to the fuselage, and one end is configured to be freely fixed to the frame plate, and a plate part that matches the opening is adhered to the inner surface of the bottom cover. When changing operations or when collecting seeds, the bottom cover is opened to open the opening and the remaining grains can be taken out and cleaned easily. The bottom cover, which opens and closes the lower part of this spiral conveyor, can be securely closed and fixed without weakening the gutter plate, and the upper plate part matches the opening of the spiral conveyor. The gap between the outer periphery and the plate is the same as the gap between the other bottom of the gutter plate, and the spiral conveyor can smoothly move the grains without accumulating grains on both sides of the gutter plate by the grooves and the plate. It has the advantage of being able to be transported, has a simple structure, and can be conveniently rotated.

[Brief explanation of the drawing]

The drawings show an actual example of the present invention; Fig. 1 is a side sectional view of the threshing machine, Fig. 2 is a side sectional view of the main parts, Fig. 3 is an exploded view of Fig. 2, and Fig. 4 is a cross-sectional side view of the threshing machine. The operation explanatory diagram of FIG. 2 is shown. 1... Spiral conveyor, 2... Opening, 3... Gutter plate, 4... Frame board, C... Space, 5... Bottom cover, 20
... Itabe.

Claims (1)

[Scope of utility model registration request] A narrow opening 2 is formed at the bottom of the gutter plate 3 on the lower side of the spiral conveyor 1, and a reinforcing frame plate 4 is provided on the lower surface side of the gutter plate 3 along one side of the opening 2.
A bottom cover 5 is fixedly fixed with a space C formed therebetween, and opens and closes the opening 2 from the lower side of the gutter plate 3.
The other end is pivoted to the body, and one end is configured to be freely fixed to the frame plate 4, and a plate part 20 that matches the opening 2 is bonded to the inner surface of the bottom cover 5. The bottom opening/closing device on the conveyor of the threshing machine.