Valve body casting for vehicle-mounted pump

Abstract

The invention discloses a valve body casting for a vehicle-mounted pump and particularly discloses a large-tonnage and high-lift valve body casting for a concrete vehicle-mounted pump. The casting comprises a main valve body, valve core through holes, a straight runner, an inclined runner, runner ports and a plurality of auxiliary runners; the two valve core through holes are designed in the valve body; the runner ports are located in various surfaces of the valve body and correspond to and communicate with the valve core through holes, a circular oil groove, the straight runner, the inclined runner and the auxiliary runners in the valve body; and the plurality of auxiliary runners are used for connecting the runners in the valve body to enable the runners to communicate with one another. The valve body has the advantages of being reasonable and compact in structure, reliable in action, multiple in function and long in service life.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to a valve body casting for a large-tonnage high-lift concrete vehicle-mounted pump. Background technique [0002] Although my country is currently a big country in construction machinery manufacturing, the industry is large but not strong. The production capacity of middle and low-end products is overcapacitated. Almost all high-end hydraulic components rely on imports. major bottleneck. At present, there is still a big gap between the overall manufacturing technology level of my country's hydraulic parts industry and the international advanced countries. [0003] As a key component in the pumping system, the vehicle-mounted pump valve casting is used to control the direction of the fluid in the pumping system. The casting process of the vehicle-mounted pump valve body casting is very demanding. Since the vehicle-mounted pump valve body blank casting is a large flow channel T...

AI Technical Summary

Problems solved by technology

[0003] As a key component in the pumping system, the vehicle-mounted pump valve casting is used to control the direction of the fluid in the pumping system. The casting process of the vehicle-mounted pump valve body casting is very demanding. Since the vehicle-mounted pump valve body blank casting is a large flow channel The valve body castings have complex flow channels, and the inner cavity is prone to defects such as sticky sand veins. The wall thickness is different, and defects such as shrinkage porosity, shrinkage cavities, and coarse graphite are likely to occur inside, and the casting yield is low.

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