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A thresher with anti-clogging function

An anti-clogging and thresher technology, applied in threshing equipment, agricultural machinery and implements, applications, etc., can solve problems such as time-consuming and labor-intensive, safety hazards, etc., to eliminate safety hazards, effectively eliminate blockages, improve work efficiency and operation reliability Effect

Inactive Publication Date: 2016-03-30
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is time-consuming and labor-intensive, and has potential safety hazards

Method used

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  • A thresher with anti-clogging function
  • A thresher with anti-clogging function

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] figure 1 Shown is the hydraulic transmission system diagram of the threshing machine of this embodiment. The main shaft of the drum of the threshing machine is connected with the main shaft of the hydraulic motor 5 through a coupling. By adjusting the opening of the speed regulating valve 3, different pressure oil flows entering the hydraulic motor 5 can be obtained, so that the hydraulic motor can obtain different speeds, thereby realizing stepless speed regulation of the threshing drum.

[0017] When the threshing machine is blocked, the pressure of the hydraulic system increases, and when the pressure reaches the set pressure of the pressure relay (YJ) 4, the YJ circuit is connected (see figure 2 ), the three-position four-way valve electromagnetic reversing valve 2 switches the oil circuit, the hydraulic motor 5 and the threshing drum reve...

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Abstract

The invention discloses a threshing machine with an anti-clogging function. The threshing machine comprises a hydraulic transmission system and an anti-clogging electric control system, the hydraulic transmission system comprises a hydraulic motor, a speed regulating valve, a reversing valve and the like, the hydraulic motor drives a threshing roller to rotate through a coupler, the speed regulating valve regulates flow, so that the threshing roller has a step-less speed changing function, the anti-clogging electric control system comprises a pressure relay and an electromagnetic reversing valve, the pressure relay is connected to a hydraulic transmission system oil way, and the electromagnetic reversing valve is arranged on the hydraulic transmission system oil way. When the threshing machine is clogged, the pressure of the hydraulic transmission system is increased, a circuit of the pressure relay is connected when the pressure reaches the set pressure of the pressure relay, the electromagnetic reversing valve switches the oil way, the hydraulic motor drives the threshing roller to reversely rotate, and clogging is removed. After a fault is removed, normal operation of the threshing machine is automatically recovered by the aid of a time relay specially connected with the pressure relay and the action of a contact of the time relay. The working efficiency and the running reliability of the threshing machine can be improved, and potential safety hazards are eliminated.

Description

technical field [0001] The invention relates to the field of agricultural machinery design and manufacture, in particular to a thresher. Background technique [0002] The thresher is an important agricultural machine for crop harvesting, and it is also one of the key systems of the combine harvester. In the threshing process of rice, wheat and rapeseed, the basic requirements for the thresher are: first, high cleaning rate and low breakage rate; second, continuous and normal operation without clogging. [0003] The cleaning rate and crushing rate are related to the line speed of the threshing element. The higher the line speed, the higher the cleaning rate and the higher the breaking rate. The threshing efficiency and threshing quality require to obtain the effect of high cleaning rate and low crushing rate at a higher threshing speed. In production, the technical scheme of using a higher threshing speed to ensure the cleaning rate and production efficiency is generally ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01F12/56A01F12/58
Inventor 周光永吴明亮
Owner HUNAN AGRICULTURAL UNIV
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