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Three-way valve based novel electric control energy storage hydraulic cylinder and control loop thereof

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

Inactive Publication Date: 2021-12-31
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
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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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  • Three-way valve based novel electric control energy storage hydraulic cylinder and control loop thereof
  • Three-way valve based novel electric control energy storage hydraulic cylinder and control loop thereof

Examples

Experimental program
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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0016] The present invention provides a new type of electronically controlled energy storage hydraulic cylinder based on a three-way valve and its control circuit, a new type of electronically controlled energy storage hydraulic cylinder based on a three-way valve and its control circuit, which is characterized in that it includes a hydraulic cylinder 100, Control loop 200, airbag 300.

[0017] see Figure 1-Figure 2 , 101-piston rod of hydraulic cylinder, 102-oil inlet / outlet of hydraulic cylinder with rod chamber, 103-piston of hydraulic cylinder, 104-in / out of hydraulic cylinder rodless chamber, 105-three-position three-way solenoid valve, 106 -Three-position three-way solenoid valve air source port A, 107-three-position three-way solenoid valve working port B, 108-three-position three-way solenoid valve exhaust port C, 109-liquid chamber, 110-cylinde...

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PUM

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Abstract

The invention provides a three-way valve based novel electric control energy storage hydraulic cylinder and a control loop thereof. The novel electric control energy storage hydraulic cylinder comprises hydraulic cylinders, the control loop, an air bag, air cylinder pistons, electromagnetic valves and the like. Bottom air cylinders and the air bag are used as an energy storage unit, and hydraulic energy generated when the hydraulic cylinders retract is recycled according to the electromagnetic valve principle; and when the electromagnetic valves are powered on, stored hydraulic oil is released to assist an oil cylinder in extending outwards, and energy recycling is achieved. Energy losses caused by recycling by taking control valves as a principle are overcome, internal pressure losses are also greatly reduced, the flow direction of hydraulic oil is well in a controllable state, the three-way valve based novel electric control energy storage hydraulic cylinder can be directly applied to various kinds of hydraulic drive engineering application, 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 three-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 p...

Claims

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Application Information

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IPC IPC(8): F15B1/02F15B21/14F15B15/20
CPCF15B1/02F15B21/14F15B15/202F15B13/02
Inventor 贺湘宇蒋梦军谭丽莎袁玉林刘琪张家彦
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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