Distributor for tractor with high stability check valve

Abstract

The invention discloses a tractor distributor with a high-stability one-way valve. The tractor distributor comprises a valve body, a front cover and a back cover. The valve body is internally provided with a valve rod, and the two ends of the valve rod extend into the front cover and the back cover respectively. The front cover is provided with a handle. The valve body is provided with a one-way valve cavity, and a one-way valve reset spring, a one-way valve element and a one-way valve steel ball are arranged in the one-way valve cavity. The one-way valve element comprises a front guide body, a middle connecting body and a tail end. A two-stage guide body is arranged on the peripheral face of the middle connecting body, and an unload groove penetrating through the two-stage guide body in the axial direction of the one-way valve element is formed in the two-stage guide body. The end face, matched with the valve body, of the back cover is provided with a sealing groove, and a special-shaped sealing ring is arranged in the sealing groove. The tractor distributor has the advantages that the problems that the periphery of a front guide body of a valve element of an existing one-way valve is abraded, a sealing piece is pressed and damaged easily and sealing becomes invalid can be solved, the sealing effect of the back cover is good, and the tractor distributor cannot be contaminated by dust easily.

Description

technical field [0001] The invention relates to a distributor, in particular to a distributor for a tractor provided with a high-stability one-way valve. Background technique [0002] Hydraulic components have the advantages of high power, simple installation and arrangement, easy control, convenient and comfortable operation, low failure rate, and easy maintenance. They are very suitable for the application of agricultural machinery with variable structures and harsh working conditions. For decades, hydraulic technology has not only been used more and more in agricultural machinery, machine tools, engineering machinery, construction machinery, aerospace equipment, etc., but also formed a huge market. [0003] my country's agricultural machinery uses hydraulic components, with the largest number, the least variety, and the lowest price, so it is the industry with the most potential for development. One of the important factors is that the application of hydraulic technology...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a tractor distributor equipped with a high-stability one-way valve in order to avoid the disadvantages of the above-mentioned prior art, so as to solve the problem that the asbestos pad is easy to be polluted and needs to be replaced frequently and the spool of the one-way valve easy wear problem

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