Novel electric control energy storage hydraulic cylinder based on two-way valve and control loop of hydraulic cylinder

A technology of control circuit and hydraulic cylinder, which is applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motor components, etc., can solve the problems of unstable internal pressure, uncontrollable hydraulic oil, low energy recovery and utilization efficiency, etc. , to achieve the effect of reducing internal pressure loss and overcoming energy loss

Pending Publication Date: 2022-01-28
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Application Information

AI Technical Summary

Problems solved by technology

However, because the hydraulic oil conversion process is relatively simple, the valve control modules cannot be freely converted, resulting in an uncontrollable state of hydraulic oil flow, so the internal pressure is unstable and the efficiency of energy recovery and utilization is not high.

Method used

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  • Novel electric control energy storage hydraulic cylinder based on two-way valve and control loop of hydraulic cylinder
  • Novel electric control energy storage hydraulic cylinder based on two-way valve and control loop of hydraulic cylinder

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0014] The present invention provides a new type of electronically controlled energy storage hydraulic cylinder based on a two-way valve and its control circuit, a new type of electronically controlled energy storage hydraulic cylinder based on a two-way valve and its control circuit, which is characterized in that it includes a hydraulic cylinder 100, Control loop 200, airbag 300.

[0015] see Figure 1-Figure 2 , 101-piston rod of hydraulic cylinder, 102-oil inlet / outlet port of rod chamber of hydraulic cylinder, 103-piston of hydraulic cylinder, 104-oil inlet / outlet of rodless chamber of hydraulic cylinder, 105-solenoid valve oil inlet A, 106 -Check valve oil outlet B, 107-Solenoid valve 1,108-Check valve 2,109-Check valve 1,110-Solenoid valve 2,111-Solenoid valve oil outlet C,112-Check valve oil inlet D,113-Cylinder piston , 114- cylinder gas inlet / ...

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Abstract

The invention provides a novel electric control energy storage hydraulic cylinder based on a two-way valve and a control loop thereof. The energy storage hydraulic cylinder comprises a hydraulic cylinder, the control loop, an air bag, an air cylinder piston, an electromagnetic valve and the like. T bottom air cylinder and the air bag are used as energy storage units, and hydraulic energy generated when the hydraulic cylinder retracts is recycled by using the electromagnetic valve principle; and when the electromagnetic valve is powered on, the stored hydraulic oil is released to assist the oil cylinder in extending outwards, and energy recycling is achieved. According to the invention, not only is energy loss recovered by taking a control valve as a principle overcome, but also internal pressure loss is greatly reduced, the flow direction of hydraulic oil is well in a controllable state, the hydraulic oil can be directly applied to various hydraulic drive engineering applications, and the energy efficiency of a hydraulic transmission system is improved.

Description

technical field [0001] The invention relates to a novel electronically controlled energy storage hydraulic cylinder based on a two-way valve and a control circuit thereof. Background technique [0002] The hydraulic cylinder is a linear actuator in the hydraulic transmission system, mainly including: hydraulic cylinder piston, hydraulic cylinder piston rod, hydraulic cylinder body, hydraulic cylinder sealing cover and other parts. [0003] Resource shortage and environmental pollution are increasingly pressing global issues, prompting the development of energy saving and emission reduction technologies. Hydraulic excavators are typical construction machinery with the characteristics of wide application, high energy consumption and low emission. Energy recovery and regeneration (ERR) technology and hybrid control technology are important energy-saving technologies in off-road machinery. core part. However, both the hydraulic cylinder and the accumulator are independent par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B1/02F15B21/08
CPCF15B13/027F15B13/02F15B1/02F15B21/08
Inventor 蒋梦军贺湘宇丁红军陈慧敏谭丽莎袁玉林张家彦刘琪
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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