CN201851345U - Novel valve of large-sized JB (junction box) radial variable piston pump - Google Patents

Abstract

The utility model discloses a novel valve of a large-sized JB (junction box) radial variable piston pump, which mainly comprises a valve body. An external control valve connected with an oil way hole is designed in the valve body. The novel valve is simple in structure, reasonable in design and easy in processing, the integral strength of the parts is improved by means of special heat treatment, service life is prolonged, and cost is reduced.

Description

Large-scale JB is the novel valve body of Variable plunger pump radially

Affiliated technical field

The utility model relates to the dynamical element of a kind of radially Variable plunger pump spool from the permanent power and variable control structure of flow, and particularly a kind of large-scale JB is the novel valve body of Variable plunger pump radially.

Background technique

At present, the permanent power and variable valve body of radial plunger pump is because of complex structure, and processing difficulties is subjected to the restriction of processing conditions, promotes difficulty, unstable properties, easy to leak.

Summary of the invention

Problem to be solved in the utility model is, overcome the deficiencies in the prior art, a kind of novel large-scale JB is provided the radially novel valve body of Variable plunger pump, this valve body is that main material is made by HT300, and it is, have stronger wear resistance, and simple in structure through special heat treatment, high pressure resistant, non-leakage.

The utility model solves its technical problem and takes following technological scheme to realize: makes one valve body body, design has outer control valve connection oil circuit hole and constitutes in its valve body body.The utility model new structure valve body is a cast structure, cooperate the improvement of transmission shaft, pump cover, the pump housing, big spacing body portion, can realize that double pump drives altogether, the classification fuel feeding and the pressure that adapt to large-scale JB radial plunger pump complex hydraulic system are adjusted requirement. and reduce installing space simultaneously, saved power.Because as independent element and the logical oily passage of outer control valve is arranged, can be equipped with valve body different control valves and realize multiple control modes.

The utility model-valve body design, be to utilize the outer control valve that increases to connect oil circuit, being connected to another same specification or the less JB radial plunger pump of specification in conjunction with the punching live axle, realizing the big traffic requirement of whole fuel feeding. the delivery pressure that can adjust two pumps simultaneously respectively satisfies different operating modes with flow and control mode.

Valve body is to be made by the HT300 foundry goods.And, make the part bulk strength improve through special heat treatment. increase working life, reduced cost simultaneously.

The utility model compared with prior art has significant advantage and beneficial effect:

Owing to use general HT300 as material, increase intensity through Overheating Treatment and reduced cost, it is simple in structure, and easy processing is high pressure resistant, and assembling is easier to, and is non-leakage.

Owing to do not change the relevant size of other related parts, but tolerance fit optimized, help standardization and unitized work, for the end user, can improve original performance and system optimization with less reforming cost.

Improvement in conjunction with the pump cover that drives flange altogether, pintle, limit body realizes that double pump (three pumps) drives altogether, helps energy saving.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a plan view structural representation of the present utility model.

Fig. 2 is a left view cross-sectional view of the present utility model.

Accompanying drawing number is: 1. valve body body, 2. outer control valve connects the oil circuit hole.

Embodiment

Referring to Fig. 1, Fig. 2 makes one valve body body (1), and design has outer control valve connection oil circuit hole (2) and constitutes in its valve body body.The utility model new structure valve body is a cast structure, cooperate the improvement of transmission shaft, pump cover, the pump housing, big spacing body portion, can realize that double pump drives altogether, the classification fuel feeding and the pressure that adapt to large-scale JB radial plunger pump complex hydraulic system are adjusted requirement. and reduce installing space simultaneously, saved power.Because as independent element and the logical oily passage of outer control valve is arranged, can be equipped with valve body different control valves and realize multiple control modes.

The utility model-valve body design, be to utilize the outer control valve that increases to connect oil circuit, being connected to another same specification or the less JB radial plunger pump of specification in conjunction with the punching live axle, realizing the big traffic requirement of whole fuel feeding. the delivery pressure that can adjust two pumps simultaneously respectively satisfies different operating modes with flow and control mode.

Valve body is to be made by the HT300 foundry goods.And, make the part bulk strength improve through special heat treatment. increase working life, reduced cost simultaneously.

Claims (1)

1. a large-scale JB novel valve body of Variable plunger pump radially is characterized in that: make one valve body body, design has outer control valve connection oil circuit hole and constitutes in its valve body body.

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