JPH0542U - Dust removal structure of threshing equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent dust such as small straw chips discharged from the dust collector of the threshing device from adversely affecting threshing workers and private houses. [Structure] A cyclone separator 9 is connected to a dust discharge tube 8 of a threshing device A, a dust compressing device C is connected to a dust discharge port 9A below the cyclone separator 9, and a dust taper shape is further narrowed downward. The portion is made to project into the case 10 of the dust compressing device C.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust removing structure for a threshing device such as a harvester and a combine harvester.

[0002]

[Prior Art]

 Conventionally, a threshing device such as a harvester has been designed so that dust such as small straw scraps in the threshing device is sucked by a dust blower and discharged to the outside from a dust pipe above the threshing device.

[0003]

[Problems to be solved by the device]

 The dust such as small straw chips discharged from the dust collector of the threshing device may sprinkle on the worker who is threshing depending on the wind direction before reaching the ground, or threshing near the residential land. In the work, the dust flying in the air adversely affected the private house.

The present invention solves the above-mentioned drawbacks by devising a dust removing structure of a threshing device, and at the same time solves a new problem caused thereby.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the present invention is characterized in that a cyclone separator is connected to a dust container of a threshing device, a dust compression device is connected to a dust discharge port below the cyclone separator, and a dust discharge port is further connected. The point is that the lower narrowed taper part is thrust into the case of the dust compression device, and its action and effect are as follows.

[0006]

[Action]

 As shown in FIG. 1, the dust such as straw dust discharged from the dust exhaust pipe 8 of the threshing apparatus A is further finely separated by the cyclone separator 9 utilizing the centrifugal force due to the swirling of the air flow, and the dust such as straw dust is removed. Dust will be separated and discharged to the lower outlet 9A, and air will be discharged to the upper outlet 9B.

The dust such as straw dust discharged from the lower outlet 9A is conveyed to one side by the spiral type conveying device 11 of the compression device C, accumulated, compressed, hardened, and emitted. Becomes

[0008] When the cyclone separator is provided and compressed and discharged in this way, blowback occurs between the cyclone separator and the compression device, that is, from the discharge port of the cyclone separator to the compression device below. Although the swirling flow that has been transferred travels upward through the inner surface of the case of the compressor and returns to the discharge port side of the cyclone separator, so-called blowback occurs, and a new problem arises that straw dust rides on the rising separation wind and the separation efficiency decreases. Since the lower narrow tapered portion of the dust discharge port 9A of the cyclone separator 9 is projected into the case 10 of the dust compression device C, the straw dust that rises along the inner surface of the case of the compression device C is discharged to the discharge port. 9A is guided downward by the outer surface of the narrowed inward plunging tapered portion, and blowback is suppressed.

[0009]

[Effect of the device]

 In this way, dust such as straw chips discharged from the dust collector of the threshing device is further separated by the cyclone separator, and the compressed device is used to solidify and collect the dust. It is possible to avoid the adverse effect on the private house.

Further, since the lower narrow tapered portion of the dust discharge port of the cyclone separator is projected into the case of the dust compression device, blowback at the dust discharge port is suppressed and deterioration of the separation efficiency is suppressed. obtain.

[0011]

【Example】

 Hereinafter, an embodiment of the present invention will be described with respect to a dust removing structure of a threshing device for a harvester. As shown in FIG. 2, the grains that have leaked through the net 2 below the handling cylinder 1 are sorted by the swing sorting device 3, and the first product is transferred to the first product recovery device 4 and the second product. Are recovered by the second object recovery device 5, respectively. Then, dust such as small straw chips reaching the end of the swing sorting device 3 is discharged to the outside of the machine from the upper dust collecting pipe 8 by the sorting wind by the sardine 6 and the suction wind by the dust blower 7. The Rukoto.

[0012] A cyclone separator 9 utilizing centrifugal force generated by swirling airflow is connected to the dust removing tube 8 of the threshing device A, and dust such as straw chips is discharged from the dust outlet 9A below the air outlet. Are separated and discharged from the upper air discharge port 9B.

Then, as shown in FIG. 1, the dust discharge port 9A below the cyclone separator 9 is driven in the cylindrical case 10 from the second material collecting device 5 of the threshing device A through the belt transmission device B 1. The dust compression device C having the spiral type horizontal transfer device 11 installed therein is connected, and the straw dust discharged from the dust discharge port 9A is transferred to one side, and in the compression chamber 12 at the end of the transfer device 11, The opening / closing lid 14 that is gathered, compressed, and solidified and urged by the spring 13 is expanded and discharged.

The tubular case 10 is composed of a triangular hopper portion 10 a connected to the dust discharge port 9 A below the cyclone separator 9 and a cylindrical portion 10 b connected to the triangular hopper portion 10 a. The lower tapered portion of the outlet 9A is connected in a state of being projected into the case of the hopper portion 10a, and straw dust that rises along the inner surface of the hopper case due to the swirling flow back is projected into the hopper case. The dust discharge port 9A is guided downward by the outer surface of the tapered portion of the dust discharge port 9A, and is configured to suppress blowback at the dust discharge port 9A.

To the air discharge port 9B above the cyclone separator 9, a pack-like fine dust collecting filter 15 having a sponge 15b and the like in a case 15a is connected in a three-tiered state and discharged. It is designed to remove the fine dust contained in the air. In addition, since it is a pack-shaped filter for collecting fine dust, the dust collection efficiency can be easily changed by stacking filters with different meshes.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a main part.

[Figure 2] Side view of the entire harvester

[Explanation of symbols]

 8 Dust collector 9 Cyclone separator 9A Dust outlet 10 Case A Threshing device C Dust compression device

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B04C 9/00 6953-4D

Claims (1)

[Claims for utility model registration] [Claim 1] A cyclone separator (9) is connected to a dust collector (8) of a threshing device (A), and a dust outlet (9A) below the cyclone separator (9). The dust compressing device (C) is connected to the dust compressing device (C), and the lower narrowed tapered portion of the dust discharge port (9A) is inserted into the case (10) of the dust compressing device (C).