JPH0541645Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention consists of installing a receiving net along the lower side of the handling barrel built in the handling room, and placing a receiving net on the lower side of the receiving net in the grain culm conveying direction. This invention relates to a threshing device having a dust inlet.

[Prior art]

This type of threshing device has a
It is known that only the handling teeth for threshing the tips of the grain culms are implanted between the receiving net stretched along the lower side of the handling barrel.

[Problem that the invention attempts to solve]

In this conventional threshing device, the amount of threshing decreases as it approaches the dust inlet from the grain inlet in the handling chamber, and the grains that exist between the lower side of the handling barrel and the receiving net move freely. Due to the increased space, grains are more likely to be reflected diffusely, especially near the dust outlet, and as a result, the reflected grains get stuck in the straw waste sent out from the dust outlet, and are carried out of the machine together with the straw waste. There was a problem with the discharge.

The present invention has been developed in view of the above-mentioned circumstances, and utilizes the characteristics of the grain threshing process in the handling room to reduce the amount of grain that is caused by the grain being discharged outside the machine together with straw waste. The purpose is to suppress losses.

[Means for solving problems]

In order to achieve the above-mentioned object, the threshing device according to the present invention has the above-mentioned structure, and a threshing device of the present invention has a part on the outer circumferential surface of the handling drum that is located on the upper side of the grain culm conveying direction than the dust feeding port. In a plurality of planes that are perpendicular to the rotational axis and spaced apart from each other in the direction of the rotational axis, a partition wall is constructed of a plurality of plates that are discontinuous in the circumferential direction and are erected. , each of the plates constituting the partition wall is arranged such that a gap formed between circumferentially adjacent plates in one plane is handled by a plate part standing upright in another plane. A characteristic configuration is that it is disposed in a closed state when viewed in the axial direction.

The functions and effects of this characteristic configuration are as follows.

[Effect]

Of the grain and straw waste that is processed in the handling room,
Although straw waste moves around a lot as the handling cylinder drives and rotates, grains that have a higher specific gravity and are smaller than straw waste tend to stay between the lower part of the handling cylinder and the receiving net. .

The present invention focuses on the difference in the processing characteristics of grain, straw waste, and threshing, and by arranging the plate of the partition wall so that it is closed when viewed in the axial direction of the handling cylinder, the grain in the handling room can be improved. This makes it difficult for grains to move to the dust inlet, promoting leakage from the receiving net, and allows straw waste to move smoothly through the unconnected parts of the partition wall to the dust inlet while circulating in the handling room. The dust can be easily discharged from the dust outlet.

[Effect of idea]

Therefore, since the movement of grains to the vicinity of the dust inlet is suppressed, the amount of grains that are diffusely reflected near the dust inlet is reduced, and the amount of grains stuck in the straw waste is also reduced, which is less than the conventional method. Compared to this, it was possible to suppress grain loss caused by grain being discharged outside the machine together with straw waste.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 3 shows a threshing device, in which a receiving net 3 is stretched along the lower side of a handling drum 2 which is mounted on a shaft in a handling chamber 1 to filter out grains in the threshing material. A dust inlet 4 is formed on the downstream side of the receiving net 3 in the grain culm conveying direction to drop and supply unleakable material with a large amount of waste straw.

On the lower side of the sorting room 5, which is divided into sections from the handling room 1, there are installed a winnowing machine 6 that generates sorting air, a swinging sorting device A that swings and sorts the threshed products, and a screw conveyor 8 for collecting the first products. A screw conveyor 9 for collecting second grains is provided, and a cross-flow fan 10 for removing dust is installed in the upper position of the sorting room 5 on the lower side in the grain culm conveyance direction than the dust inlet 4 of the handling room 1. It is arranged.

The oscillating sorting device A includes a oscillating frame 13 and a first grain pan 14 for sorting grains leaking from the receiving net 3 by gravity while oscillatingly conveying them; A grain sieve 15 that performs leakage screening while shaking and transporting grain, and
At a position above this grain sieve 15, there is a second grain pan 16 which selects the specific gravity of the threshed material falling and supplied from the dust inlet 4 while swinging and conveying it, and a second grain pan 16 which separates the straw waste from the threshing machine frame 17. Mouth 1
A stroke rack 19 for swinging conveyance is provided on the 8 side.

As shown in FIGS. 1 and 2, a portion of the handling cylinder 2 that is slightly shifted upward in the grain culm conveying direction from the dust inlet 4 has a The four plate-like partition walls 20 formed in a substantially circular arc shape are placed in such a state that their adjacent ends in the direction of rotation overlap each other in the direction of the rotation axis, and the rotation axis of these adjacent ends It is erected to allow passage of grain culms and waste straw through a gap S in the direction. That is, the dust inlet 4 in the handling cylinder 2
A pair of plates constituting partition walls are arranged along the same plane at two positions in the front and back on the upper side of the grain culm conveying direction, and spaced apart in the circumferential direction, and in the axial direction of the handling cylinder. When viewed from the outside, the partition wall is configured to close the entire circumference of the handling cylinder 2.

Upper end surface 20 in the rotational direction of each of these partition walls 20
is formed into a surface along the rotational radial direction, and the end surface 20b on the lower side in the rotational direction is formed into an inclined surface such that the further downstream the rotational direction, the more inwardly in the radial direction.

Therefore, among the grains and straw waste that are the materials to be processed in the handling chamber 1, the waste straw that moves around a large amount as the handling cylinder 2 is driven and rotated is removed by the gap S between the adjacent ends of the partition walls 20. While the grains are smoothly moved through the grains to the dust port 4 side, the partition wall 20 suppresses the movement of the grains remaining between the lower part of the handling cylinder 2 and the handling cylinder 3 toward the dust port 4 side. Therefore, it is possible to reduce the amount of diffused reflection of grains near the dust inlet 4, and to suppress loss caused by grains getting stuck in straw waste. In addition, in the figure, 21 is the top plate 22.
This is a guide plate for discharging straw waste that is attached to a part of the handling drum 2 opposite to the partition wall 20, and it directs the straw waste etc. thrown off by the drive rotation of the handling drum 2 to the lower side in the grain culm conveyance direction. It is configured in an inclined position to guide the transition.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing device according to the present invention, in which FIG. 1 is a longitudinal sectional front view, FIG. 2 is a perspective view of a handling cylinder, and FIG. 3 is a longitudinal sectional side view. 1... Handling room, 2... Handling barrel, 3... Receiving net, 4...
Dust outlet, 20...partition wall.

Claims (1)

[Scope of Claim for Utility Model Registration] A receiving net 3 is stretched along the lower side of the handling drum 2 installed in the handling room 1, and a dust inlet 4 is provided on the downstream side of the receiving net 3 in the grain culm conveyance direction. The threshing device is configured such that a part of the outer circumferential surface of the handling cylinder 2 that is perpendicular to the rotational axis of the handling cylinder 2 and located on the upper side of the dust inlet 4 in the grain culm conveying direction is provided. A partition wall 20 constituted by a plurality of plates discontinuous in the circumferential direction is erected within a plurality of planes spaced apart from each other in the front and back directions of the rotation axis, and each of the partition walls 20 constituting the partition wall 20 is erected. Plate bodies are in a state where a gap formed between circumferentially adjacent plate bodies in one plane is closed by a plate part standing upright in another plane when viewed in the axial direction of the handling cylinder. A threshing device installed in