Electro-hydraulic servo system with two valves connected in parallel and control method of electro-hydraulic servo system

A technology of electro-hydraulic servo system and control method, applied in the field of electro-hydraulic servo system and its control

Active Publication Date: 2020-03-10
ZHOUSHAN INST OF CALIBRATION & TESTING FOR QUALITY & TECHNICAL SUPERVISION
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, its double-valve parallel electro-hydraulic servo system is simply a system device composed...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electro-hydraulic servo system with two valves connected in parallel and control method of electro-hydraulic servo system
  • Electro-hydraulic servo system with two valves connected in parallel and control method of electro-hydraulic servo system
  • Electro-hydraulic servo system with two valves connected in parallel and control method of electro-hydraulic servo system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0098] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0099]The double-valve parallel electro-hydraulic servo system of the present invention includes a hydraulic module and a control circuit module. The hydraulic module includes: plunger pump, three-phase motor, one-way valve, oil return filter, pressure gauge, overflow valve, oil tank, three-position four-way servo solenoid valve, three-position four-way proportional solenoid valve, high pressure Hoses, hydraulic cylinders. The three-phase motor is connected and drives the plunger pump to provide power for the device; the oil inlet of the plunger pump is connected to the oil tank; the oil outlet of the plunger pump is connected with a check valve and an oil return filter; The meter is connected with the oil return filter and overflow valve; the P oil inlet pipeline of the three-position four-way servo solenoid valve is connected with the P oil ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an electro-hydraulic servo system with two valves connected in parallel. The electro-hydraulic servo system with the two valves connected in parallel comprises a plunger pump,a three-phase motor, the three-position four-way servo solenoid valve and the three-position four-way proportional solenoid valve. The three-phase motor is connected with the plunger pump. An oil inlet of the plunger pump is connected with an oil tank; an oil outlet of the plunger pump is connected with a check valve and an oil-return and oil-filtering device; the oil-return and oil-filtering device and an overflow valve are arranged on a main oil-return pipeline; and the three-position four-way servo solenoid valve is connected with the three-position four-way proportional solenoid valve, andthe signal ends of the three-position four-way servo solenoid valve and the three-position four-way proportional solenoid valve are connected with a control circuit module. A control method comprisesthe steps that parameters in the electro-hydraulic servo system with the two valves connected in parallel are first defined; then the input-and-output conditions of the electro-hydraulic servo systemwith the two valves connected in parallel are restrained; numerical values output by an input-and-output module are then initialized; and finally the real-time control function of the module is achieved. The optimal configuration and control over the two valves and the precision control of the electro-hydraulic servo system can be achieved.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, in particular to an electro-hydraulic servo system with two valves connected in parallel and a control method thereof. Background technique [0002] Hydraulic technology Compared with electric and pneumatic components, hydraulic components have higher power and torque and smaller volume under the same conditions, which makes the electro-hydraulic servo system more compact in structure and has faster response speed . Therefore, electro-hydraulic servo control technology can be widely used in marine engineering, industrial production, aerospace technology and other fields. However, with the further development and use of electro-hydraulic servo technology in the market, the accuracy and requirements of electro-hydraulic servo systems are getting higher and higher, and correspondingly higher requirements are put forward for its system indicators, including system control accuracy, dynamic Res...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F15B11/08F15B21/08
CPCF15B11/08F15B21/08
Inventor 苏世杰刘霞勇唐文献陈赟齐继阳
Owner ZHOUSHAN INST OF CALIBRATION & TESTING FOR QUALITY & TECHNICAL SUPERVISION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap