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A Linear Portable Electro-hydraulic Actuator

An electro-hydraulic actuator, linear technology, applied in the direction of fluid pressure actuators, etc., can solve the problems of difficult maintenance, large space occupation, complex system, etc., and achieve good maintainability, convenient assembly and disassembly, and simplified system Effect

Active Publication Date: 2019-01-25
HUST WUXI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a linear portable electro-hydraulic actuator to solve the problems of complex system, large space occupation, high energy consumption and difficult maintenance in the electro-hydraulic actuator in the prior art

Method used

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  • A Linear Portable Electro-hydraulic Actuator
  • A Linear Portable Electro-hydraulic Actuator
  • A Linear Portable Electro-hydraulic Actuator

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] see figure 1 and figure 2 As shown, in this embodiment, a linear portable electro-hydraulic actuator includes a main housing 1, a bidirectional rotary electromagnetic pump 2, a valve group 3 and a single-piston rod hydraulic cylinder 4 as an actuator, wherein, The two-way rotary electromagnetic pump 2 is arranged at the tail of the main casing 1, and the positioning cover plate 5 is positioned between the two. The oil inlet and outlet of the two-way rotary electromagnetic pump 2 communicate with the two oil inlets of the valve group 3, The single-piston rod hydraulic cylinder 4 is arranged on the front end of the main casing 1, and an end face cover plate 6 is arranged between the piston rod end of the single-piston rod hydraulic cylinder 4 and the main casing 1, and the other end is mounte...

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Abstract

The invention discloses a linear portable electric-hydraulic actuator. The linear portable electric-hydraulic actuator comprises a main shell, a two-way rotating electromagnetic pump, a valve set, and a single-piston rod hydraulic cylinder for serving as an actuation part; the two-way rotating electromagnetic pump is arranged at the tail part of the main shell, and an oil access port thereof is communicated with two oil inlets of the valve set; the single-piston rod hydraulic cylinder is arranged at the front end of the main shell; two oil outlets of the valve set are respectively connected with a hard pipe pipeline and a soft pipe pipeline; the hard pipe pipeline is communicated with a rodless cavity of the single-piston rod hydraulic cylinder; and the soft pipe pipeline is communicated with a rod cavity of the single-piston rod hydraulic cylinder. The electric-hydraulic actuation system is positioned in the cylindrical shell, is compact in structure, small in size, light in weight, high in power density, liable to integrate with other equipment products, portable and reliable, and in particular, provides new thoughts to application in the field of robots.

Description

technical field [0001] The invention relates to an actuator, in particular to a linear and portable electro-hydraulic actuator. Background technique [0002] Electro-hydraulic actuator is currently a popular electro-hydraulic product researched at home and abroad. It usually consists of a motor, a two-way quantitative pump, a control valve, an actuator and an oil tank. The electric motor drives the two-way quantitative pump to generate hydraulic power, which directly drives the actuator to work. Its application effect is good in the field of fly-by-wire flight control system and automobile transmission, but it is not effective in the occasions such as robot joint drive and wearable exoskeleton clothing that require high structure compactness, flexibility and flexibility. This electro-hydraulic actuator has the following deficiencies in the specific application process: [0003] 1) Limited by the layout of the oil source and accumulator of the electro-hydraulic system, the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/18
CPCF15B15/18
Inventor 刘银水吴干永牛壮朱礼浩王陆一
Owner HUST WUXI RES INST
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