Plunger pump hydraulic assembly

Abstract

The embodiment of the invention discloses a hydraulic assembly of a plunger pump, which includes a pump head body with a pump head hole, a liquid suction valve seat, a liquid suction spring, a liquid discharge spring and a The direction of the suction valve seat is sequentially inserted into the suction valve core, liquid suction valve body, liquid discharge valve seat, liquid discharge valve core, and liquid discharge spring seat in the pump head hole; the circumferential direction of the pump head hole The hole wall has a first support platform and a second support platform opposite to each other. The liquid suction valve seat includes a pipe body, and the end of the pipe body is provided with a flanging. The pipe body is inserted into the first support platform. Between the first support platform and the second support platform, the flanges are respectively pressed on the first support platform and the second support platform, and the two ends of the liquid suction spring are respectively abutted against the liquid suction valve core and the liquid suction valve body The two ends of the discharge spring abut against the discharge valve core and the discharge spring seat respectively. The embodiment of the invention can reduce the arrangement of parts, reduce the volume, reduce the dead weight, and improve the assembly efficiency.

Description

technical field [0001] The invention relates to the technical field of plunger pumps, in particular to a hydraulic assembly of a plunger pump. Background technique [0002] The reciprocating plunger pump is composed of a reduction mechanism and a hydraulic assembly. The hydraulic assembly plays the role of converting mechanical energy into fluid pressure energy. The hydraulic assembly in the prior art includes an upper gland, a pump head main body, a liquid suction box, and a suction valve seat support ring connecting the pump head main body and the liquid suction box. Among them, the main body of the pump head is provided with a pump head hole, and the suction valve seat, the liquid suction valve core, the liquid suction valve spring, the liquid discharge valve core, the liquid discharge valve seat, the liquid discharge valve spring and the liquid discharge valve spring seat are all installed. in the pump head hole. [0003] When assembling, it is necessary to install the...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that both the suction valve seat and the suction valve core in the prior art need to be fixed by the support ring of the suction valve, there are many assembly parts, the volume is large, the weight is heavy, the assembly efficiency is low, and the discharge The size of the liquid spool is large. Under the frequent impact of high-pressure liquid flow, the stability of the liquid discharge spool is poor, and it is prone to fatigue fracture, which may easily cause damage to the plunger and transmission parts.

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