Electric-hydraulic vibration exciter based on magnetostrictive driving

A magnetostrictive and electro-hydraulic excitation technology, which is applied in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc., can solve the problem of low excitation frequency, achieve compact structure and increase cycle frequency Effect

Inactive Publication Date: 2013-05-01
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low excitation frequency in existing electro-hydraulic exc

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
  • Electric-hydraulic vibration exciter based on magnetostrictive driving
  • Electric-hydraulic vibration exciter based on magnetostrictive driving
  • Electric-hydraulic vibration exciter based on magnetostrictive driving

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] Such as figure 2 or image 3 As shown, the electro-hydraulic exciter based on magnetostrictive drive of the present invention is mainly composed of a magnetostrictive drive pump 1, a one-way valve, an accumulator 4, a piezoelectric ceramic drive two-position three-way reversing valve, a double-rod hydraulic The cylinder 7 and the excited body 8 are composed. The magnetostrictive drive pump 1 provides hydraulic oil, which is connected with the two-position three-way reversing valve driven by piezoelectric ceramics through the oil pipe. The one-way valve is installed on the magnetostrictive drive pump 1. The two-position three-way reversing valve driven by piezoelectric ceramics is connected with the double-rod hydraulic cylinder 7 through oil pipes, and the excited body 8 is connected with the double-rod hydraulic cylinder 7 .

[0038] The one-way va...

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 provides an electric-hydraulic vibration exciter based on magnetostrictive driving, which solves the problem that the excitation frequency of an existing electric-hydraulic vibration exciter is low. The electric-hydraulic vibration exciter comprises a double-rod hydraulic cylinder which is connected with a to-be-excited body through a piston rod, two piezoelectric ceramic driven two-position three-way reversing valves which are respectively connected with a left oil cavity and a right oil cavity of the double-rod hydraulic cylinder, a magnetostrictive driving pump which is connected with the two piezoelectric ceramic driven two-position three-way reversing valves, two one-way valves which have different opening directions and are arranged on the magnetostrictive driving pumps, and an energy accumulator which is arranged between one one-way valve with an inward opening and one piezoelectric ceramic driven two-position three-way reversing valve, wherein the magnetostrictive driving pump comprises an oil cylinder and a magnetostrictive driver; the oil cylinder and the magnetostrictive driver are separated by an elastic mebrane and are packaged into a whole through a shell; and the two one-way valves are connected with the two piezoelectric ceramic driven two-position three-way reversing valves. According to the electric-hydraulic vibration exciter disclosed by the invention, rapid responding can be realized by magnetostriction and piezoelectric ceramics, so that high-frequency excitation output can be realized.

Description

technical field [0001] The invention relates to the technical field of vibration testing, in particular to an electro-hydraulic vibrator driven by magnetostriction. Background technique [0002] The vibration characteristics of materials and structures are related to their mechanical properties. Therefore, vibration testing has become a basic test in modern industry and has gradually become an important means of product development. It is widely used in many important engineering fields, such as road simulation of automobiles and walking machinery Test, fundamental frequency test of large equipment, anti-vibration fatigue test of engineering materials, dams and high-rise buildings, etc. [0003] There are mainly three types of excitation methods: mechanical, electric and electro-hydraulic. Among them, the mechanical vibration table has the advantages of simple structure and low cost. Large and has the disadvantages of mechanical clutter; the electric vibration table has the...

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): F15B21/12
Inventor 李剑锋徐振邦王建立
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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