A water pressure variable pump

A water pressure variable pump, water pressure technology, applied in the direction of fluid pressure actuation device, servo motor, mechanical equipment, etc., can solve the problem of no flow pulsation, etc., and achieve the effect of variable quantity, uniform force and good sealing performance

CN104976165BInactive Publication Date: 2017-01-25SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-01-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a water pressure variable pump, which belongs to the technical field of water pressure proportional control. It can effectively solve the problems of hydraulic pump proportional flow, pressure control and low pressure unloading. The mixed design of hydraulic components and hydraulic components is adopted, and the hydraulic components and hydraulic components are connected separately through pipelines, and then the two parts are connected into one by using a mechanical linkage structure, and the hydraulic cylinder is controlled by driving the hydraulic components through a motor. And control the oil pressure actuator to make the mechanical mechanism move, so that the water pressure cylinder reciprocates to realize water absorption and drainage, so that the proportional precise control function of the water pressure variable pump is realized. It is mainly used for transmission medium hydraulic pump and energy transmission hydraulic pump structure.
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Description

technical field

[0001] The invention belongs to the technical field of water pressure control, in particular to the technology with proportional control of water pressure. Background technique

[0002] Modern hydraulic technology is mainly an environmentally friendly new type of hydraulic drive technology based on tap water or seawater medium. There are more and more extensive demands in the fields of pharmaceutical manufacturing, food processing, deep-sea resource exploration, and high-pressure water washing. The principle of water pressure technology is similar to that of oil pressure technology, but due to the special physical and chemical characteristics of water compared with oil, such as low viscosity, corrosiveness, high saturated vapor pressure, etc., it causes serious leakage, friction, wear, corrosion, and cavitation Problems such as these make the development of modern hydraulic components involve technical difficulties in many aspects such as new materials, new ...

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing:

[0022] The present invention adopts the mixed design of the oil pressure element and the water pressure element, and is composed of the oil pressure element, the water pressure element and the mechanical mechanism. It is suitable for hydraulic pump structure as transmission medium. Also suitable as an energy transmission hydraulic pump structure. The structure controls the hydraulic cylinder through the hydraulic element, so that the hydraulic cylinder reciprocates to realize water absorption and drainage, and realizes the function of the hydraulic variable pump.

[0023] 1. Connection relationship through the oil circuit: the input end of the hydraulic pump 1 is connected to the oil tank 25 through the oil inlet 30 of the pipeline, and the output end is connected to the high-speed proportional directional flow valve 4 through the pipeline; the high-speed proportional dire...