A Damping Structure to Prevent Oscillation of Reducer

Abstract

A damping structure capable of preventing oscillation of a pressure reducer comprises a main spring (1), an adjustment gasket (2), a spring seat (3), a damping rubber block (4), a valve body (5) and adiaphragm assembly (6). Under the spring force effect of the main spring (1), the damping rubber block (4) is forced to generate initial deformation and stops till the spring seat (3) presses the adjustment gasket (2), and at the moment, the outer edge of the damping rubber block (4) makes contact with the side wall of the valve body (5). When the pressure reducer is oscillated, the spring seat (3) and the diaphragm assembly (6) axially vibrate relative to the valve body (5), the contact parts of the damping rubber block (4) and the valve body (5) generate reciprocating friction or tangentialdeformation to absorb vibration energy, and thus the effect of preventing oscillation is achieved. The magnitude of damping is controlled by controlling the thickness of the adjustment gasket (2), the damping, with the appropriate magnitude, required by the pressure reducer can be provided, the problem that an existing damping structure is prone to underdamping or over-damping is solved, the structure is stable, and the oscillation reducing effect is good.

Description

technical field [0001] The invention relates to a damping structure for preventing vibration of a pressure reducer, which belongs to the field of damping regulation. Background technique [0002] The pressure reducer is one of the key components of the satellite dual-component propulsion system. Its function is to reduce the high-pressure helium in the upstream high-pressure cylinder to the required low pressure, and provide it to the downstream oxidant storage tank and combustion agent storage tank, so that the storage tank Pressure remains relatively constant during satellite transfer orbits. Oscillation phenomenon is prone to occur during the operation of the pressure reducer. Oscillation will cause damage to the pressure reducer valve port and sensitive components, which may cause the pressure reducer to fail, and the downstream pressure cannot be controlled, resulting in the failure of the entire star propulsion system. In order to ensure that the engine works near th...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the problems in the current prior art that the two damping structures tend to cause small damping due to their own structures, difficult vibration reduction or over-damping, and easy to produce large deviations in locking pressure, a new design is proposed. A Damping Structure to Prevent Oscillation of Reducer

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