A spring returnable structure was used to turn around the revolving drum of the steering system to carry out the returnablity of the steering wheel.

Analysis and treatment of the spring operating mechanism stored energy faults in circuit breaker;

Analysis of the breaker rejecting movement accident caused by a spring mechanism manual/electromotion changeover switch fault

This article firstly put forward the calculation formula on static opening speed for SF_6 circuit breaker with spring mechanism.

In electric power system,the main operation mechanism of high voltage circuit breaker are hydraulic circuit and spring mechanism.

According to the structure characteristics of the plastic floppy case with big depth and side holes,an angular pin structure is used in the design of the mould for the plastic part to complete the shaping of the big depth,and a spring_slide structure is used to realize side core_pulling.

Fault analysis of CT spring operating mechanism;

Optimization of special spring operating mechanism;

Taking vacuum circuit breaker historical development as a clue,and based on the analysis of advantages and disadvantages of the electromagnetic operating mechanism and the spring operating mechanism,this article presents the research and analysis results on the characteristics,the advantages and the prospects for the development of permanent magnetic actuator vac.