Hydraulic actuator

A hydraulic actuator and actuator technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, mechanical equipment, etc. High-speed commutation requirements and other issues

Active Publication Date: 2013-09-18
TIANJIN URANUS HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing hydraulic actuators have the following disadvantages: 1. Most of the existing actuators do not contain high-precision control systems, which cannot meet high-precision applications; 2. The actuators that use reversing valves cannot withstand long-term High-speed reversing requirements; 3. The existing actuator system is not closed, and the environmental adaptability is low

Method used

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The following examples are only used to illustrate the present invention but not to limit the present invention.

[0045] figure 1 is a three-dimensional structure diagram of the hydraulic actuator of the present invention; figure 2 is a front view of the hydraulic actuator of the present invention. Such as figure 1 with figure 2 As shown, the hydraulic actuator of the present invention includes a hydraulic cylinder 11 and an actuator hydraulic station 12 . The actuator hydraulic station 12 is provided with an electric control part and a manual control part.

[0046] image 3 It is a three-dimensional structure diagram of the actuator hydraulic station of the hydraulic actuator of the present invention; Figure 4 It is the internal structural diagram of the actuator hydraulic station of the hydraulic actuator of the present invention. S...

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PUM

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Abstract

The invention discloses a hydraulic actuator. The hydraulic actuator comprises a hydraulic cylinder and an actuator hydraulic station, wherein an electrical control part and a manual control part are arranged inside the actuator hydraulic station. The speed of the hydraulic actuator is controlled by controlling the flow of a pump by a PLC (programmable logic controller), and the position of the hydraulic actuator is fed back by a displacement sensor; when a certain hydraulic actuator fails, electromagnetic valves can be controlled through automatic PLC control or manual control, thus achieving follow-up working of the failed hydraulic actuator by following up a safety valve with a rod cavity, and protecting the hydraulic actuator; in the manufacturing process of the hydraulic actuator, a rust-preventing technology is adopted, namely the surface of a piston rod is plated with chrome and the surface of a valve block is plated with nickel to prevent rust corrosion; the electrical control part is mounted on a protective cover and is sealed, so that moisture erosion is prevented and an electromagnetic shielding effect is achieved; the hydraulic actuator is safe and flexible in operating mode; and all electromagnetic valves have a manual operating function, so that the system cannot be powered normally, the hydraulic actuator can be operated through the manual control.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing and relates to a hydraulic actuator. Background technique [0002] The hydraulic actuator is a hydraulic device that independently completes specified actions, and it has the characteristics of compact structure and convenient use. The existing hydraulic actuators have the following disadvantages: 1. Most of the existing actuators do not contain high-precision control systems, which cannot meet high-precision applications; 2. The actuators that use reversing valves cannot withstand long-term High-speed reversing requirements; 3. The existing actuator system is not closed, and the environmental adaptability is low. Contents of the invention [0003] The invention provides a hydraulic actuator aiming at the problems existing in the prior art. [0004] The technical scheme that the present invention takes for solving this problem is: [0005] The hydraulic actuator of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/08F15B15/28
Inventor 王建中刘兵张建陈淑霞李晓光
Owner TIANJIN URANUS HYDRAULIC MACHINERY
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