Temperature sensing variable annular gap integrated hydraulic damper

Abstract

The invention provides a temperature sensing variable annular gap integrated hydraulic damper, which aims at solving the problem that the hydraulic damper is sensitive to temperature change and can maintain relative good stability in a larger temperature range. The invention is realized through the following technical scheme: a temperature compensation annular gap formed by a temperature compensation valve core movably assembled in a plunger hole is combined, a temperature compensation cavity formed by necking in middle part of the temperature compensation valve core, a pressure compensation cavity formed on the space of a plunger shaft end and a damping cavity of the pressure compensation cavity are communicated; the oil in a crossed damping cavity of a piston rod rotor blade generates intermolecular friction in the oil of the damping annular gap; when the temperature of the oil of a damping cylinder is changed, the hydraulic pressure thermal displacement generated by the oil in the temperature compensation cavity push an end drive head of the compensation valve core and the temperature compensation piston to drive the temperature compensation valve core to do reciprocating linearmotion, so that the effective length and height of the temperature compensation annular gap are continuously changed, and the kinematic viscosity of the working medium with temperature changes is balanced and compensated.

Description

technical field [0001] The invention relates to a hydraulic damper mainly used in aviation, aerospace, ships, vehicles, large-scale engineering equipment, robots, material transmission, packaging, steel, machine tools, entertainment, medicine and other industries to protect the safety of impacted or sharply manipulated equipment. In particular, a temperature-sensing variable annular seam integrated hydraulic damper, more specifically, the present invention relates to an automatic compensation hydraulic damper that utilizes a variable annular seam to balance changes in liquid viscosity due to temperature changes and promote changes in the damping performance of the system. Dampers and application techniques. Background technique [0002] In mechanical engineering, when many mechanisms are performing mechanical movement, due to the low damping motion characteristics of the mechanism itself, the movement stability of the mechanism is poor or unstable, and even resonance occurs,...

AI Technical Summary

Problems solved by technology

[0006] The task of the present invention is to provide a hydraulic damper with sensitive response, precise positioning, small frictional resistance, large damping force and excellent dynamic performance, which can adapt to temperature changes, so as to solve the problem that the hydraulic damper is sensitive to temperature changes, and make the hydraulic damper The device can maintain relatively stable performance in a large temperature range

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