JPS5825797Y2 - Threshing machine sorting device - Google Patents

Description

[Detailed Description of the Invention] The purpose of the present invention is to improve the sorting function of a sorting device of a threshing machine.

This invention fixes a wind direction change plate that gradually protrudes from the center to the end of the sorting net side to the back of the rocking plate of the rocking sorting device, and gradually reduces the upper and lower middle of the sorting air passage. A part of the sorting wind that was parallel to the sorting net is changed upward (to a direction intersecting the sorting net), thereby improving the separation and sorting of the rice on the sorting net from dust and the like.

Hereinafter, the present invention will be explained based on the embodiments shown in the figures.

As shown in Fig. 1, the threshing machine has a handler on the lower side, a handling cylinder 4 horizontally suspended in a handling chamber 3 formed by a net 1 and a handling cylinder cover 2 on the upper side, and swinging rods 5, 5'. A swing sorting device 6 that is supported and swings back and forth and up and down, a winnower 7 that is located below the swing sorter 6 and serves as an air source for wind sorting, and a first grain board that flows paddy into the first conveyor 8. 9. Second flow grain board 11 through which incomplete paddy etc. flow into the second conveyor 10. A third port 12 etc. is provided to discharge coarse dust etc. to the outside of the machine.

In the swinging sorting device 6, the receiver is located below the net 1 in a substantially horizontal position, and its base end 13a and tip end 13b are connected to the swinging rod 5.
, 5'; a sorting net 14 attached to the distal end 13b of the swing plate 13 at the same height as the swing plate 13 or slightly below the swing plate 13; A side plate 15 that is attached vertically to both sides of the tip end 13b and extends to the vicinity of the third opening 12, a straw rack 16 that is attached to the side plate 15 and located above the sorting net 14, and the side plate 1.
5 and located further toward the third exit 12 than the stroke rack 16, the swinging rods 5, 5
The entire swinging sorting device 6 is configured to swing vertically and longitudinally by the swinging motion of '.

The winnower 7 is located below the base end 13a of the rocking plate 13, is covered by a cover 18, and is configured to send sorting air from the air outlet 19 in the direction A by rotating in the direction of the arrow H.

The first grain board 9 is located below the sorting net 14 and the sorting net 1
4, its base is connected to the first conveyor 8, and the paddy etc. that fall from the sorting net 14 can flow first to the conveyor 8.

The second flow grain board 11 is located below the nodal line 17 and substantially corresponds to the entire surface of the nodal line 17, so that lightweight paddy etc. falling from the nodal line 17 can be flowed down to the second conveyor 10.

The third port 12 is located near the tip of the node line 17 and discharges coarse dust and the like to the outside of the machine.

The sorting air passage 20 is formed in a space along the longitudinal direction of the lower surface of the oscillating sorting device 6 and surrounded by the side plates of the thresher, the first grain plate 9, the second grain plate 11, etc. Selected air is supplied from the Karakou 7 which is the air source.

Reference numeral 21 denotes a wind direction changing plate attached to the back side of the swinging sorting device 6, the end 21a on the side of the winnower 7 is fixed to the center of the swinging plate 13, and the other end [on the side of the sorting net 14] is gradually changed. It protrudes into the sorting air passage 20 and is inclined downward to shorten the vertical width of the sorting air passage 20.

The extension part of the maximum protruding part 21 b is bent upward, and the end part 22 b is fixed to the connection part between the sorting net 14 and the swing plate 13 so that the end part 22 b is bent at an inclination angle larger than the inclination angle of the wind direction changing plate 21 . An upwardly inclined wind direction guide plate 22 is extended.

Note that without fixing the end 22b to the end of the swing plate 13, the end 22b' is attached to the swing plate 1 as shown by the imaginary line in FIG.
3. The wind direction guide plate 22 or the wind direction change plate 21 may be fixed to the swing plate 13 via side plates (not shown) formed by bending both sides of the wind direction guide plate 22 or the wind direction change plate 21 separated from the sorting net 14. .

The operation of the sorting device configured as in the above embodiment will be explained.

The paddy threshed by the handling cylinder 4 in the handling chamber 3 passes through the receiver net 1 and falls onto the swing plate 13 together with lightweight paddy or dust.

Due to the oscillating motion of the oscillating sorting device 6, the paddy, lightweight paddy, and dust on the oscillating plate 13 are gradually moved onto the sorting net 14.

In the sorting net 14, the paddy passes through the mesh of the sorting net 14, falls onto the first grain board 9, is conveyed by the second conveyor 8, and is separated from lightweight paddy and garbage with approximately the same weight as the lightweight paddy. The grains are sent onto the second distribution board 11 without falling through the mesh by the sorting air sent from the winnowing machine 7, and are conveyed by the second conveyor 10 as second grains.

As for the effect of the wind direction changing plate 21, the sorting air sent in the direction A from the winnowing machine 7 is changed to a downwardly inclined direction by the wind direction changing plate 21, as shown by the arrow opening, and is sent to the sorting air passage. 20 becomes narrower, the wind pressure increases, but after passing through the maximum protrusion 21b of the wind direction changing plate 21, the vertical width of the sorting air passage 20 suddenly becomes wider, so that the sorting air is directed diagonally upward and horizontally. It will flow in both directions.

This sorting air flowing diagonally upward crosses the sorting net 14 and passes through the screen, which improves the sorting efficiency on the sorting net 14 and prevents clogging of the sorting net 14. .

In addition, as in the embodiment, the wind direction changing plate 21 is
If the wind direction guiding plate 22 is extended without ending at b, it is possible to reliably generate the sorting wind that intersects with the sorting net 14 and to send the sorting wind to the part of the sorting net 14 near the rocking plate 13. Although it is convenient, the wind direction guiding plate 22 may be omitted in order to achieve the purpose of the present invention.

As described above, the present invention has a wind direction changing plate that is inclined downward in the passing direction of the sorting air so as to gradually protrude into the sorting air passage on the back side of the rocking plate of the shaking sorting device. After passing through the maximum protrusion, in addition to the wind that runs parallel to the sorting net as with conventional equipment, upward wind that crosses the sorting net and blows through is always generated regardless of the vertical movement of the swinging sorting device. , improving the sorting efficiency of the sorting device by improving the separation of paddy, lightweight paddy, dust, etc. on the sorting net.3
This has the effect of reducing number loss.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a sorting device of a thresher embodying the present invention. FIG. 2 is a partial longitudinal cross-sectional view showing the main parts. 6... Rocking sorting device, 13... Rocking plate, 14... Sorting net, 20... Sorting air passage, 21...・Wind direction change board.

Claims (1)

[Scope of utility model registration request] On the back side of the rocking plate in the rocking sorting device, there is a piece located on the sorting net side from the center of the rocking plate, and is inclined downward so as to gradually protrude into the sorting air passage and gradually reduce the top and bottom of the sorting air passage. A sorting device for a threshing machine characterized by being provided with a wind direction changing plate.