Low-vibration low-noise electromechanical static pressure servo mechanism

A servo mechanism and low-noise technology, applied in the field of servo mechanisms, can solve problems such as easy blockage of servo valves, loose structural layout, large noise and vibration, etc., to reduce mechanical vibration, improve the ability to work for a long time, reduce vibration and noise Effect

Active Publication Date: 2015-12-16
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electro-hydraulic servo mechanism has a loose structure and takes up a lot of space; the operation efficiency is low, and the noise and vibration are large during operation; and the servo valve is easy to block and the reliability is low

Method used

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  • Low-vibration low-noise electromechanical static pressure servo mechanism
  • Low-vibration low-noise electromechanical static pressure servo mechanism
  • Low-vibration low-noise electromechanical static pressure servo mechanism

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0029] Such as figure 1 Shown is the schematic diagram of the servo mechanism system of the present invention. It can be seen from the figure that the servo mechanism system of the present invention includes a control unit assembly and an actuator assembly. The two-chamber oil circuits are connected through hydraulic hoses 18 and self-sealing joints 13 .

[0030] The control unit assembly includes two high-pressure oil circuits and one low-pressure oil circuit, as well as various functional components, specifically: servo motor pump 1, check valve 2, isolation valve 14, low-pressure pressure sensor 10, temperature sensor 8, self-pressurized oil tank 7. Differential pressure sensor 11, oil filter assembly 15, bypass valve 5, two hydraulic pulsation mufflers 16, low pressure safety valve 9 and high pressure safety valve 6.

[0031] Among them, t...

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PUM

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Abstract

The invention relates to a low-vibration low-noise electromechanical static pressure servo mechanism which comprises a control unit assembly and actuator assemblies, wherein two one-to-two oil ducts of the control unit assembly are respectively connected with two oil ducts of the two actuator assemblies through a hydraulic hose and a self-sealing connector; each actuator assembly comprises two actuators and two displacement sensors, and one displacement sensor is arranged in each actuator; the control unit assembly comprises a servomotor pump, a one-way valve, an isolating valve, a low-pressure pressure sensor, a pressure transducer, a self-pressurization oil tank, a differential pressure transducer, two high-pressure oil ducts and a low-pressure oil duct; and the assemblies are connected into the high-pressure oil duct or low-pressure oil duct. The servo mechanism has the advantages of compact structure, high reliability and favorable sound insulation and sound absorption effects, is convenient for demounting and interchange, and obviously lowers the vibration and noise.

Description

technical field [0001] The invention relates to a low-vibration and low-noise electromechanical static pressure servomechanism, which belongs to the technical field of servomechanisms. Background technique [0002] Electro-Hydrostatic Actuators (EHA) is a new technology emerging in the field of aerospace control and execution in recent years. It uses a servo motor to control the speed and direction of a constant two-way hydraulic pump, and the hydraulic actuator pushes the load to achieve displacement output. Not only has the remarkable characteristics of high reliability of electromechanical servo, energy saving and convenient maintenance, but also has the advantages of large output and high transmission reliability due to the adoption of hydraulic transmission. [0003] The traditional electro-hydraulic servo mechanism has a loose structure and takes up a lot of space; the operating efficiency is low, and the noise and vibration are large during operation; and the servo v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/08F15B13/02
Inventor 何俊郑波曲颖孙需要
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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