Spring operating mechanism

Abstract

The invention discloses a spring operating mechanism. The number of output shafts in the spring operating mechanism is more than two. Each output shaft is provided with an output crank arm correspondingly in a rotating-stopping mode. A free end of each output crank arm is connected to a sliding groove formed in an output cam (E) correspondingly. Each output crank arm forms a swinging guiding rod mechanism through the corresponding sliding groove and the corresponding output cam (E). Accordingly, more than two output shafts are driven to move through one output cam, each output shaft drives a corresponding isolating switch or breaker equipment to carry out opening-closing movement. Meanwhile, the sliding grooves in the output cams enable the output crank arms assembled on the output shafts in an eccentric-rotating-stopping mode and the output cams to form the swinging rod guiding mechanisms which can guarantee reliable transmitting torque from the output cams to the output crank arms, a reliable transmission effect is achieved through an ingenious connecting rod transmission mechanism, the performance stability of the spring operating mechanism is improved, and the service life of the spring operating mechanism is prolonged.

Description

technical field [0001] The invention relates to a spring operating mechanism. Background technique [0002] At present, electromagnetic mechanisms are often used in the linkage control of opening and closing actions of vacuum circuit breakers and isolating switches, but the closing voltage of the electromagnetic structure is AC220V, the closing power is too large, and the requirements for power quality are very high, so it cannot be used with the backup The cooperation of the power supply system, and the accumulation of tolerances in the processing of the coil and iron core of the electromagnetic mechanism will lead to the instability of its magnetic field, which will seriously affect the reliability of the opening and closing actions of vacuum circuit breakers and isolating switches. [0003] A circuit breaker spring operating mechanism is disclosed in the Chinese patent specification with application number 201210141851.9, which includes a frame and a closing unit, an open...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned spring operating structure, the closing unit and the opening unit drive the output shaft in the same output assembly to rotate, so as to realize the opening and closing actions, that is, the above-mentioned spring operating mechanism can only output one torque, so that the spring operating mechanism It can only be used to control the opening and closing action of the circuit breaker, but cannot transmit the opening and closing action to the isolating switch linked with the circuit breaker, so that the linkage effect of the opening and closing action of the isolating switch and the circuit breaker is affected, and there is still low reliability in use The problem

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