JPH067771B2 - Grain sorting device in thresher - Google Patents

Description

Description: [Industrial application] The present invention relates to a thresher that gives a threshing action to the husks supplied to the handling chamber, and more specifically, can improve the sorting performance of the thresher. The present invention relates to a grain sorting device.

[Technical background and problems] Conventionally, there is a grain sorting device that adjusts the sorting degree by rotating a fin. However, in a conventional thresher, an unprocessed material of the grain sorting device is handled in a room. Since the processing capacity of the No. 2 reduction device for returning to
When the amount of untreated reduction to the No. 2 reduction device is large, the No. 2 reduction device is clogged, and conversely, when the amount of untreated reduction to the No. 2 reduction device is small, the grain in the untreated product is damaged. There was a problem that

[Object of the Invention] The present invention has been made in view of the above problems, and an object thereof is to prevent grain from being clogged in the reducing device and prevent grain damage. To provide.

[Configuration of the Invention] The feature of the present invention for achieving the above object is that the handling room 11
From the lower side to the lower side of the suction fan 29, the swing sorting shelf 1 is provided, and from the upper side to the lower side of the swing sorting shelf 1 from the upper side to the lower side, the compressed wind Karasu 73, No. 1 spiral 85, No. 2 spiral. The chaff sheave 41, which is arranged in the order of 75, and which adjusts the sorting scale of the swing sorting shelf 1, is provided with a plurality of guide plates 47 capable of adjusting the sorting scale by adjusting the inclination angle, and the second spiral 75 and By providing the speed change device 7 for increasing or decreasing the amount of fried grain in the second reducing device 5 including the husk blade 79 that communicates with one end of the second spiral 75, and increasing the mesh size of the chaff sheave 41, By decelerating the No. 2 reduction device 5 in conjunction with the interlocking device 9 and conversely narrowing the mesh, 2
The configuration of the grain sorting device in the thresher provided with the adjusting device 3 for accelerating the speed reducing device 5 is adopted.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a side sectional view of a thresher equipped with a grain sorting device according to the present invention. In a thresher 11 of this thresher, a shell and culm supply port 13 is formed on one side and shells are provided on the other side. A culm outlet 15 is formed, and a handle cylinder 19 having a large number of handle teeth 17 is rotatably installed on the outer peripheral surface. Then, a catching net 21 is stretched along the outer circumference of the handling cylinder 19, and the side of the shell culm discharge port 15 of this catching net 21 is cut into a predetermined size to remove the dust discharge port 2.
3 is formed.

A dust removing device 25 is provided on the rear side of the handling chamber 11 on one side of the machine. The dust removing device 25 includes a suction casing 27.
And a suction fan 29 rotatably installed in the casing 27.

The rocking / sorting shelf 1 is installed so as to rock freely from the handling chamber 11 side toward the dust removing device 25 side. Further, on the swinging and sorting shelf 1, a transfer shelf 31 and a sorting net 33 are arranged vertically. The transfer rack 31 has a shell grain transfer section 35, a leakage rack section 37, an intermediate transfer section 39, a chaff sheave 41, and a straw rack 43 sequentially connected from the shell culm supply port 13 of the handling chamber 11 toward the dust removal device 25 side. It is constructed and set up.

The chaff sheave 41 has a starting end located below the dust outlet 23 and an end communicating with the dust removing device 25. As shown in FIG. 2 and FIG. 3, the chaff sheave 41 is composed of a fixed frame 45 that is provided on the left and right sides, and a plurality of guide plates 47 that are arranged in parallel on the fixed frame 45 at predetermined intervals. . The guide plate 47 has an inclined surface 4 with the transfer direction side raised.
7a and a transfer surface 47b formed by bending the tip portion downward. Upper protrusions 49 are formed on the left and right ends of the upper part of the inclined surface of the guide plate 47, and the upper protrusions 49 are rotatably fitted in fulcrum holes 51 formed in the fixed frame 45. Further, lower projections 53 are formed on both left and right ends of the lower part of the inclined surface of the guide plate 47, and the lower projections 53 are formed in a pair of left and right sliding frames 55 provided inside the fixed frame 45. It is rotatably fitted in the support hole 57. The sliding frame 5
5 are connected by a connecting rod 59. The connecting rod 59 has a spring 61 that is always pulled in the transfer direction, and a spring 61.
Adjustable wire 63 that can be adjusted to the side opposite to the pulling direction
Are connected. The other end of the adjusting wire 63 is connected to an operating lever 3 as an adjusting device for operating the mesh. When the guide plate 47 is laid down on the grain transfer direction side, the lower end of the transfer face 47b abuts the inclined surface 47a of the guide plate 47 adjacent to the transfer direction side, and the transfer face 47b is moved.
And the inclined surface 47a are connected to form a corrugated shelf.

Below the rocking sorting shelf 1, the first transfer gutters 65 and 2 are provided.
A sorting air duct 71 is formed between the grain transfer boards 69 that are continuously provided between the number transfer troughs 67, and a Karako 73 is provided at the rear end of the sorting air duct 71.

The No. 2 reduction device 5 is composed of a No. 2 spiral 75 rotatably provided in the No. 2 transfer gutter 67, and a husk shell thrower 77 connected to one end side of the No. 2 spiral 75. A bottom shell blade 79 is provided in a lower end portion of the bottom shell thrower 77. The lift shell blade 79 is attached to the No. 2 spiral shaft 81 of the No. 2 spiral 75.

A No. 1 spiral 85 mounted on a No. 1 spiral shaft 83 is rotatably provided in the No. 1 transfer gutter 65.

The No. 1 spiral 85, the No. 2 spiral 75, and the shell hopper 79 are rotationally driven from a prime mover (not shown) via a counter shaft 87. That is, as shown in FIG. 4, the belt 93 is stretched over the pulley 89 fixed to one end of the No. 1 spiral shaft 83 and the pulley 91 of the counter shaft 87, and the pulley 89 of the No. 1 spiral shaft 83. A belt 99 is stretched around a pulley 95 arranged side by side and a split pulley 97 attached to one end of the No. 2 spiral shaft 81.

Belt 9 stretched between pulley 95 and split pulley 97
A tension pulley 101, which constitutes a transmission 7 for adjusting the processing capacity of the No. 2 reduction device 5, is arranged below the device 9. The tension pulley 101 is supported by an arm 105 supported by a shaft 103 so as to be able to move up and down. One end of a wire 107 constituting the interlocking device 9 is connected to the arm 105, and the other end of the wire 107 is connected to the operation lever 3.

Next, the operation of the above embodiment will be described.

The tips of the husks fed from the husk supply port 13 into the handling chamber 11 are subjected to a shedding action by the handling barrel 19 rotating in the handling chamber 11, and the husks after the shedding are handled from the husk discharge port 15. It is transported to the outside of the chamber 11 and taken over by a straw feeding chain (not shown) and discharged outside the machine. At this time, the shredded grains are handled by the teeth 17
, The shell grains and small straw wastes drop from the net 21 onto the shell grain transfer section 35 of the lower swing selection shelf 1 and are swing-transferred to the leakage rack section 37 side to cause the leakage. It falls from the rack portion 37 onto the sorting net 33, where the Kara 73 and the dust removal device 25
Due to the pressured wind and suction sorting action of the shell, the shell grain is the No. 1 spiral gutter 65
The straw wastes collected in the above are discharged to the outside of the machine by the dust discharging device 25.

On the other hand, the dust that has not leaked from the receiving net 21 is handled in the handling room 11
To the intermediate transfer portion 39 from the dust discharge port 23, is oscillated to be transferred to the chaff sheave 41, and is moved by the suction action of the transfer surface 47b of the guide plate 47 and the swaying dust removal device 25. It is transferred to the device 25 side. The straw debris is discharged to the outside of the machine after being screened by the Straw rack 43, but the shell grains fall from the space between the guide plates 47 onto the screening net 33 and are subjected to the wind screening action to be the first transfer gutter 65. Will be collected.
A part of the shell grains and the branch adhering grains that have not fallen from the shuff sheave 41 are collected by the No. 2 phase shift gutter 67 while receiving the wind-selecting action from the Straw rack 43, and then lifted by the rotation of the husk blade 79. It is reduced to the inside of the handling room 11 by the shell thrower 77.

Next, if a large amount of straw dust is mixed in the dust, if the humidity is high by performing raw handling work or if the wheat threshing work is performed and there are a lot of cuts, adjustment to adjust the mesh is performed. The device, that is, the operating lever 3 is rotated in the direction of the arrow a in FIG. 1 to pull the adjusting wire 63 in the direction of the arrow b to connect the connecting rod 5.
The sliding frame 55 is moved in the same direction via 9. Then,
Each of the guide plates 47 uses the upper protrusion 49 as a fulcrum to support the dust removing device 25.
Since the sorting mesh formed between the guide plates 47 by falling to the side becomes small, most of the dust is transferred toward the dust removing device 25 side by the transfer surface 47b and the suction action. Then, the dust discharged by the above-mentioned transfer action is
It is separated into shell grains and straw debris by the swinging sorting action of the swinging Strawac 43, and the straw debris and scraps are discharged to the outside of the machine by the sorting wind of the dust removing device 25 and the Karako 73. The branch adhering grains and some straw wastes are collected in the second transfer gutter 67. Therefore, the amount of shell grains, branch-bead-attached grains, and some straw waste collected in the second transfer gutter 67 increases. On the other hand, the operation lever 3 is rotated to operate the guide plate 4 of the chaff sheave 41.
When the sorting pattern formed between the 7 and 7 is made small, the wire 107 is pulled in the direction of arrow c in association with this and the tension pulley 101 rises via the arm 105, and the tension of the belt 99 is increased. As a result, the effective pulley diameter of the split pulley 97 becomes smaller, and the shell wing 79 rotates at high speed.
Therefore, even if the amount of shell grains, branch stem adhering grains and a part of straw debris collected in the second transfer gutter 67 becomes large, the inside of the handling chamber 11 can be held by the lift shell thrower 77 with the rotating shell blade 79 rotating at high speed. And the second transfer gutter 67, the husk slower 77, etc. are not clogged in the second reduction device 5.

Further, the operating lever 3 of the adjusting device is rotated in the direction of the opposite arrow a in FIG. 1 to rotate the adjusting wire 63 and the spring 61.
When the sliding frame 55 is moved in the direction opposite to the arrow b via the connecting rod 59 to maximize the selection mesh formed between the guide plates 47, the wire 107 is interlocked with this.
Moves in the direction opposite to the arrow c, the tension pulley 101 descends via the arm 105, the tension of the belt 99 is reduced, and the effective pulley diameter of the split pulley 97 becomes large. Rotate at low speed. Therefore, even if a small amount of shell grains and branch stem attached grains are collected in the second transfer gutter 67, the shell grains are not damaged. At this time, the lowest number of revolutions of the shell wing 79 may be further reduced.

[Effects of the Invention] As is apparent from the above, according to the configuration of the present invention, the processing capacity of the reducing device is adjusted in conjunction with the increase or decrease of the unprocessed material due to the adjustment of the scale of the rocking sorting shelf. With this configuration, it is possible to adjust the processing capacity of the reducing device in conjunction with the adjustment of the meshing of the rocking sorting shelf according to the amount of unprocessed material received by the reducing device. Therefore, it is possible to reduce clogging in the reducing device and damage such as shell grains mixed in the untreated material.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view of a thresher equipped with a grain sorting device according to the present invention.
2 is a side view showing the action of the chaff sheave, FIG. 3 is a perspective view of the chaff sheave, and FIG. 4 is a side view showing the action of the capacity adjusting device of the No. 2 reducing device. (Explanation of symbols representing main parts of the drawing) 1 ... Oscillating sorting shelf 3 ... Adjusting device (operating lever) 5 ... No. 2 reduction device, 7 ... Transmission device 9 ... Interlocking device, 11 ... Handling room 29 ... Suction fan , 47 ... Guide plate 73 ... Compressed air Kara, 75 ... 2nd spiral 85 ... 1st spiral

Claims (1)

[Claims] 1. An oscillating sorting shelf 1 is provided from below the handling chamber 11 to below the suction fan 29, and under the oscillating sorting shelf 1 from the upper side to the lower side, the compressed air Kara no Masu 73, A plurality of guide plates 4 which are arranged in the order of the No. 1 spiral 85 and the No. 2 spiral 75, and can adjust the inclination angle of the chaff sheave 41 that adjusts the selection scale of the swing selection shelf 1 to adjust the selection scale widely and narrowly.
7, the No. 2 spiral 75 and the No. 2 reducing device 5 including the No. 2 spiral 75 and the No. 7 shell 79 communicating with one end of the No. 2 spiral 75 are provided with the transmission 7 for increasing / decreasing the amount of the Nox. By the operation of widening the mesh of 41, the interlocking device 9
A grain selecting device in a thresher, which is provided with an adjusting device 3 that accelerates the second reducing device 5 by an operation of decelerating the second reducing device 5 and conversely narrowing the mesh.