Pressure self-balance type electromechanical servo action device under high-pressure environment

Abstract

The invention discloses a pressure self-balance type electromechanical servo action device under the high-pressure environment. The pressure self-balance type electromechanical servo action device comprises a servo motor, a planet pin roller screw pair, a piston, a speed reducer, a sensor, a shell and other matched devices. The shell is internally fully filled with oil liquid, and the piston can freely move in a piston cylinder. An oil passing hole is reserved in a main shell, and it is guaranteed that oil liquid in the main shell and a front shell flows smoothly. The rotation movement of a screw is converted into the linear movement through a nut, and an output rod is pushed to output the linear movement. A linear displacement sensor is arranged on the main shell, and a magnetic ring is arranged on a guiding block and does the linear reciprocating movement along with a deep groove ball bearing. A high-low lip seal is adopted as a dynamic seal at the position of a copper sleeve, static seals are adopted at other shell connecting parts, and inner and outer liquid mixing is prevented. The pressure self-balance type electromechanical servo action device solves the problems that an existing electromechanical action device is weak in voltage endurance capability, low in efficiency and the like, the power to weight ratio, the voltage endurance capability and the load capability of the electromechanical action device are improved, and a technology guarantee is provided for promoting the development of submarines and underwater devices under the high-pressure environment.

Description

technical field [0001] The invention relates to an electric servo actuating device, in particular to an outboard servo control system applied to submarines and underwater devices in a high-pressure environment; it belongs to the technical fields of water conservancy and marine technology. Background technique [0002] At present, the multi-electricity of submarines and underwater robots is an important development trend. The power-by-wire actuation system has become one of the hotspots in the field of aerospace, marine and water conservancy research. Power transfer between mechanisms. Compared with the traditional hydraulic actuation system, it belongs to green energy, with strong flexibility, good safety, high efficiency, high reliability and easy maintenance. [0003] Actuation systems and devices are important components of marine and underwater equipment, and these equipments rely on the cooperation of actuation systems to drive moving parts to complete various tasks. ...

AI Technical Summary

Problems solved by technology

[0004] Nowadays, there are two power sources for the actuation system. One is the hydraulic energy supply. The traditional hydraulic servo actuator is used, that is, through the conversion of high and low pressure oil, the work is done to output linear motion, thereby changing the attitude of the rudder surface. This kind of steering gear is suitable for It is suitable for large output force occasions, and the volume and weight are relatively large; the other is the power electric drive actuator supplied by electric energy, that is, the electromechanical servo mechanism is used to drive the hydraulic cylinder or the screw pair. This new electromechanical method uses green energy It can be applied to high torque and high power occasions, but the structure is complex

Neither of the above two structures can meet the requirements of high power-to-weight ratio, strong carrying capacity, and small installation space for electromechanical servo mechanisms in deep-water high-pressure environments.

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