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Counter-force type hydraulic drive mechanism

A driving mechanism and reaction force technology, applied in the direction of fluid pressure actuating devices, etc., can solve the problems of limited movement stroke and excessive strength requirements of joints at structural joints, improve structural stress characteristics, simplify design, and reduce use restrictions. Effect

Inactive Publication Date: 2013-02-13
XIAN AIRCRAFT IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to ensure that the hydraulic drive system is simple, reliable and stable in working performance under the condition of heavy load rotation in the hydraulic drive system, the purpose of this application is to provide a counterforce hydraulic drive mechanism to improve linear hydraulic actuation The cylinder, in the drive of large-load rotary motion, has the defects of limited motion stroke and excessive requirements on the strength of joints at structural connections

Method used

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  • Counter-force type hydraulic drive mechanism
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  • Counter-force type hydraulic drive mechanism

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Embodiment Construction

[0020] See attached image 3 with Figure 4 , the reaction force hydraulic drive mechanism of the present application includes a linear actuator 1, a mounting bracket 2, a reaction force bracket 3 and a connecting shaft 4, and the linear actuator 1 is a common linear hydraulic actuator. There is a connecting shaft 4 at the end of the moving cylinder, through which the reaction force bracket 3 and the installation bracket 2 are coaxially articulated. The reaction force bracket 3 is a rigid two-force rod structure, and the reaction force bracket and the linear motion A variable included angle is formed between the cylinders, and the two ends of the rotating load 5 are respectively hinged on the actuation connection point 6 and the reaction force connection point 7 of the reaction force bracket and the outer end of the linear actuator cylinder. The mounting bracket 2 is a typical two-force rod structure, which itself is only subjected to the effects of tension and pressure, and ...

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Abstract

Disclosed is a counter-force type hydraulic drive mechanism. The mechanism comprises a linear actuator cylinder, an installation support, a counter-force support and a hinge shaft. The hinge shaft is designed on the end portion of the linear actuator cylinder to hinge the counter-force support with the installation support. The linear drive form of the linear hydraulic actuator cylinder is converted into a rotary drive form, so that loads produced by loading are limited in the actuator cylinder and balanced, and the whole mechanism installation is simple, the rigidity is large, and the stress situation of a position joining with a machine body is improved.

Description

technical field [0001] This patent relates to the design of a reaction force hydraulic drive mechanism, which is especially suitable for using a linear hydraulic actuator to drive a device with a large rotational load. Background technique [0002] In the hydraulic transmission system, the selection of the actuator often depends on the motion form of the driven load mechanism and the conditions of the load. Usually, the linear reciprocating motion generally chooses different types of actuators, and the swing motion generally selects the actuator and the rocker structure. , Actuator rack and pinion or swing motor. Loads in the form of rotational motion are often encountered on aircraft, such as aircraft rudder system, landing gear retractable system, nose wheel steering system, etc. [0003] Due to the complex structure and low reliability of the swing motor compared with the linear hydraulic cylinder, it is usually used in low-pressure, light-load, or low-importance transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/06
Inventor 马建平张倩阎惠秦建新
Owner XIAN AIRCRAFT IND GROUP