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Winnowing device of harvester

A harvester and air selection technology, applied in agricultural machinery and implements, threshing equipment, applications, etc., can solve problems such as poor impurity removal effect, achieve high impurity removal rate, good sorting effect, and improve the effect of separation rate

Inactive Publication Date: 2015-03-25
重庆茂松实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a harvester winnowing device, to solve the problem that the winnowing effect of the harvester's winnowing device is poor

Method used

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  • Winnowing device of harvester

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] As shown in the figure, the winnowing device of the harvester in this embodiment includes a scraper conveyor 1, a feeding pipe 2 connected to the outlet of the scraper conveyor, and an exhaust pipe 3 connected to the upper end of the feeding pipe. The outlet of the scraper conveyor and the feeding pipe are connected by a transition material pipe 4, and a throwing wheel 5 is arranged in the transition material pipe;

[0016] The material guide roller 6 and the bracket 7 that is rotatably matched with the upper and lower ends of the material guide roller are arranged in the feeding tube, the conical material guide surface is arranged on the described material guide roller, and the discharge direction of the transition material tube Tangent to the guide surface.

[0017] The winnowing device of the harvester in this embodiment, when working, it acc...

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Abstract

The invention discloses a winnowing device of a harvester. The winnowing device of the harvester comprises a scraper conveyor, a feeding tube and an exhaust tube, wherein an outlet of the scraper conveyor is connected with the feeding tube through a transitional tube; a throwing wheel is arranged in the transitional tube; a guiding roller and a support are arranged in the feeding tube; the support is in running fit with the upper end and the lower end of the guiding roller; the guiding roller is provided with a conical guiding surface; and the discharging direction of the transitional tube is tangent to the guiding surface. When the winnowing device of the harvester works, materials are thrown in the feeding tube at high speed along the tangential direction of the conical guiding surface through the throwing wheel, and move along annular space between the guiding roller and the feeding tube, so that the materials are scattered uniformly, and the separation rate of impurities and grains is improved; and moreover, the volume of a cavity of the feeding tube is reduced by the guiding roller, a structure which is similar to a laval spray tube is formed, and air flow is accelerated in the feeding tube, so that the efficiency on separation of the impurities and the grains is further improved. The winnowing device of the harvester is high in impurity removal rate and high in winnowing effect.

Description

technical field [0001] The invention relates to a harvester, in particular to a winnowing device for the harvester. Background technique [0002] Existing rice or wheat harvester, its winnowing device generally comprises the conveyer that conveys the material of thresher outlet upwards, the feeding pipe that is arranged on the conveyer outlet, the suction pipe that is connected with feeding pipe and the suction pipe connected with the suction pipe. Duct-connected fans. When the air separation device is working, the material is discharged downward from the feeding pipe through the conveyor, and the exhaust fan makes the air flow enter through the feeding pipe and then be discharged through the suction pipe. In the feeding pipe, the airflow will take away the impurities mixed in the grain particles , to achieve grain removal. [0003] Because the grain and sundries entering the feeding pipe are not evenly dispersed, and because the inner cavity of the feeding pipe is relativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01F12/44
Inventor 杨宗云郑伟
Owner 重庆茂松实业股份有限公司
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