Newton internal friction law rotation damper

A technology of rotary damper and internal friction, applied in the direction of mitigating undesired effects, etc., can solve problems such as lack of data and design parameters.

Pending Publication Date: 2021-06-11
SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the blockade of foreign technology, there is no information and design parameters to check

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  • Newton internal friction law rotation damper
  • Newton internal friction law rotation damper
  • Newton internal friction law rotation damper

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Embodiment Construction

[0021] refer to Figure 1-Figure 5 , in the preferred embodiment described below, a rotary damper with Newton's law of internal friction, including: a rotary piston 4 with temperature compensation function installed in the damping cavity of the damping cylinder 5, through which the hollow cavity of the rotary piston 4 extends out of the damping The piston rod 11 of the cylinder 5, and the materials with different thermal expansion coefficients are selected for the rotary piston 4 and the damping cylinder 5. The thermal expansion coefficient of the material of the rotary piston 4 is greater than that of the damping cylinder 5. Among them: an end cover assembly 3 with oil volume compensation passes through the front end The stepped shaft cylinder seal is assembled in the step hole at the tail end of the piston rod 11, and forms a variable volume sealing cavity filled with damping working medium with the damping cylinder 5 and the rotary piston 4. The outer circle of the rotary pi...

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Abstract

The invention discloses a Newton internal friction law rotary damper, through which abnormal shaking can be reduced or eliminated, and the detection precision of a sensor is improved. According to the technical scheme, an end cover assembly with an oil volume compensation function is assembled in a stepped hole in the tail end of a piston rod in a sealed mode through a stepped shaft barrel at the front end, and the end cover assembly, a damping barrel and a rotary piston form a variable-volume sealed cavity filled with damping working media; the outer circle of the rotary piston and the annular surface of the inner wall of the damping cylinder form a damping circular seam filled with a damping working medium; the piston rod is fixedly connected with an attack angle sensor weather vane transmission gear through the mounting groove, the attack angle sensor weather vane rotates and drives a gear transmission mechanism to drive the piston rod to rotate freely relative to the damping cylinder, and the viscosity of a working medium of the damping circular seam variable containing cavity is adjusted according to the Newton internal friction principle. Small Newton internal friction force is provided for a damper by utilizing the difference of thermal expansion and cold contraction of thermal expansion coefficients of different materials, friction torque is output through the piston rod, and damping force is provided for the attack angle sensor.

Description

technical field [0001] The invention relates to a rotary damper, in particular to a miniature Newtonian internal friction rotary damper used for an angle of attack sensor in an air data measurement system and a flight control system. Background technique [0002] A damper is a device that provides resistance to motion and dissipates energy in motion, a "special" component placed on a structural system that provides resistance to motion and dissipates energy in motion. Rotary dampers are relatively common in our life and work. It is suitable for equipment that needs to buffer mechanical movement, which can make the product obtain steep mechanical movement, reduce friction between equipment and prolong the service life of the product. It has one-way buffering and two-way buffering. The rotary damper adopts the principle of hydraulic pressure and uses electromagnetic technology to make it operate. The specific structure is based on a standard gear, and the shape of the gear i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D3/028
CPCG01D3/028
Inventor 侯中志王力高泽宇汪驰颜若飞唐旭
Owner SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY
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