A radial piston pump/motor and its distribution structure

A radial column and plug pump technology, used in pumps, multi-cylinder pumps, pump components, etc., can solve the problems of high design and processing requirements for distribution valves, lag in opening and closing of distribution valves, loss of volumetric efficiency, etc., to improve friction and wear. And leakage problems, good sealing performance, improve the effect of opening and closing lag
CN110578684BActive Publication Date: 2020-07-24ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2020-07-24

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Abstract

The invention discloses a flow distribution structure of a radial plunger pump / motor. The flow distribution structure comprises a left flow distribution assembly and a right flow distribution assembly. The left flow distribution assembly comprises a first flow distribution disc, a first guide rod, a first fixing piece and a first one-way valve, wherein the first flow distribution disc is mounted on a rotary shaft of the radial plunger pump / motor, the first guide rod is slidably arranged on the first fixing piece, the first one-way valve is fixed to the first fixing piece, one end of the firstguide rod is in abut joint with a slope of the first flow distribution disc, and the other end of the first guide rod is in abut joint with a valve element of the first one-way valve; the right flow distribution assembly is similar to the left flow distribution assembly; and a mounting phase difference between the first flow distribution disc and a second flow distribution disc of the right flow distribution assembly is 180 degrees. The flow distribution structure is suitable for flow distribution of an oil-pressure / water-pressure pump / motor plunger, can effectively eliminate volume efficiencylosses caused by a flow distribution module of a flow distribution structure of a common disc, and can solve the problem of severe flow-distribution wear of the common disc; in addition, when the flow distribution structure is used for flow distribution of the pump, pressure losses caused during liquid suction / discharging of the pump can effectively reduced; and the flow distribution structure has the advantages of being simple in structure and low in cost.
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Description

technical field

[0001] The invention relates to the technical field of flow distribution of pumps / motors, in particular to a radial stop pump / motor and a flow distribution structure thereof. Background technique

[0002] Hydraulic systems are widely used in various engineering fields. As people pay more and more attention to environmental protection, safety, health and other issues, higher requirements are put forward for the components in hydraulic systems, such as high efficiency, long life, and low leakage pollution. Wait. With the improvement of processing technology, more precise parts can be produced to reduce leakage, and the research and development of anti-wear materials and self-lubricating materials can improve the working life of hydraulic components. However, the structural problems, leakage and sealing problems of friction pairs in hydraulic components need to be solved urgently.

[0003] As an important working component of the hydraulic system, the working e...

Claims

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