Dispenser for tractor with automatic reset function

Abstract

The invention discloses a distributor with an automatic restoring function for a tractor. The distributor with the automatic restoring function for the tractor comprises a valve body, a front cover and a rear cover, wherein a valve rod is arranged in the valve body, and the two ends of the valve rod respectively stretch into the front cover and the rear cover; a handle is arranged on the front cover; a through hole which penetrates through the rear cover is formed in the rear cover, and a balancing guide rod is arranged in the through hole; a radial hole which penetrates through the valve rod along the radial direction of the valve rod is formed in the circumferential surface of the valve rod, and a small steel ball is arranged in the radial hole; a positioning guide seat is arranged in the inner chamber of the valve rod, a guide rod seat in the positioning guide seat is provided with a guide rod, the right side of the guide rod seat is further provided with a conical valve spool; a sealing groove is formed in the end surface, fit with the valve body, of the rear cover, and a special-shaped sealing ring is arranged in the sealing groove. The distributor for the tractor disclosed by the invention can solve the problem that the valve rod is automatically reversed under backpressure, and has the advantages that the valve rod has the automatic restoring function, the restoring reliability is high, the rear cover sealing effect is good, no dust is stuck on the rear cover, the working reliability of the distributor is improved and the like.

Description

technical field [0001] The invention relates to a dispenser, in particular to a tractor dispenser with an automatic reset function. 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 in agricultural machi...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a tractor distributor with automatic reset function in order to avoid the disadvantages of the above-mentioned prior art, so as to solve the problems that the asbestos pad is easy to be polluted and needs to be replaced frequently, the back pressure of the valve stem is automatically reversed, and only Problem with manual reset

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