Three-station actuator cylinder structure

Abstract

The invention provides a three-station actuator cylinder structure. The structure comprises an actuator cylinder body, a rail cover, an active piston, a limit piston, a sealing section, a lock nut, a rail handle, a regulation pad and sealant rubber rings, wherein the actuator cylinder body is internally provided with the active piston and the limit piston; the sealant rubber rings are arranged between the actuator cylinder body and the limit piston and between the active piston and the sealing section; the left side of the actuator cylinder body is connected with the sealing section, and the right side of the actuator cylinder body is connected with the rail cover; an actuator cylinder is divided into three separate sealed cavities by the actuator cylinder body, the rail cover, the active piston, the limit piston and the sealing section; three nozzles on the actuator cylinder body are respectively communicated with the three separate sealed cavities; and the piston rod of the limit piston stretches into the piston rod of the active piston. The three-station actuator cylinder structure has the advantages that the actuator cylinder design has the characteristics of shared stroke and shared oil cavity, so that the structure is simple, and the operation and control are simple and reliable; and when the specific station of the three stations is subjected to tiny regulation, a regulation pad structure is adopted so as to be convenient for regulation.

Description

Technical field [0001] The invention relates to the field of mechanical structures, in particular to a three-station actuator structure. Background technique [0002] The hydraulic actuator in the existing mechanical mechanism generally has only two mechanical limit positions when the piston rod is fully extended and retracted, and the mechanical limit cannot be achieved at a specific position in the middle. If you need to stay in a specific position in the middle, it usually needs to be provided by a sensor to give a displacement signal and then manipulated by the control system to achieve this, which makes the structure more complex, the control complex, the entire technical system complex, and the economic cost is high. [0003] In order to enable the piston rod of the actuator cylinder to be in the mechanical limit position at a specific position in the middle, without the need for other complex displacement signals and control systems, it is necessary to design an actuator str...

AI Technical Summary

Problems solved by technology

[0002] The hydraulic actuator in the existing mechanical mechanism generally has only two mechanical limit positions when the piston rod is fully extended and retracted, and the mechanical limit cannot be realized at a specific position in the middle

If you need to stay at a specific position in the middle, you usually need to give a displacement signal through the sensor, and then manipulate it by the control system, which makes the structure more complicated, the control complicated, the entire technical system complicated and the economic cost high

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