Integrated valve group of hydraulic system

Abstract

The invention discloses an integrated valve group of a hydraulic system. A first check valve, a second check valve, a third check valve, a first oil collection diverting valve, a second oil collection diverting valve and an electromagnetic valve of the integrated valve group are located in an integrated valve block body, an external electromagnetic valve electrical signal control interface is located on the upper surface of the integrated valve block body, a first oil return port, a second oil return port and an oil outlet are located on the right side of the integrated valve block body, a first oil inlet, a second oil inlet, a front surface first oil outlet and a front surface second oil outlet are located on the front surface of the integrated valve block body, a rear surface first oil outlet and a rear surface second oil outlet are located on the rear surface of the integrated valve block body, and the lower surface of the integrated valve block body serves as a fixed connection surface of the integrated valve group. The electrical signal control interface performs intelligent control on a two-position two-way electromagnetic valve, and the integrated valve group is simple in pipe arrangement, easy to assemble and convenient to maintain, reduces leakage points, improves reliability of a whole machine, and is applied to hydraulic systems of large heavy-load engineering machines.

Description

technical field [0001] The invention relates to a valve block of a large-scale, heavy-duty construction machinery hydraulic system. Background technique [0002] At present, many valve blocks are used in the hydraulic system of large-scale and heavy-duty construction machinery wheeled vehicles. The pipelines connected to the valve blocks are arranged messily, crowded, and the assembly is complicated. Inconvenient maintenance. The friction between the hoses is increased due to the flow of high-pressure oil at the contact points of the pipelines, which is easy to wear and tear. At the same time, too many pipe joints also increase the probability of oil leakage. Reference materials: Chinese Patent No. 201220390034.2. Contents of the invention [0003] In order to overcome the defects of complex valve block assembly, inconvenient maintenance and easy leakage of oil in the known existing engineering machinery hydraulic system, the present invention provides an integrated valv...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of complex valve block assembly, inconvenient maintenance and easy leakage of oil in the known existing engineering machinery hydraulic system, the present invention provides an integrated valve group of the hydraulic system, which ensures the hydraulic pressure On the basis of component reliability and concentration, the piping layout of the entire hydraulic system is simple, easy to assemble, easy to maintain, and reduce leakage points

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