Permanent magnet breaker operation mechanism provided with emergency separating brake device

Abstract

The invention relates to the field of permanent high-pressure vacuum circuit breakers, in particular to a permanent magnet breaker operation mechanism provided with an emergency separating brake device. The permanent magnet breaker operation mechanism comprises a mechanism box (17) and a main shaft (6) which is arranged inside the box. The permanent magnet breaker operation mechanism is characterized in that double-head connecting lever (5) is fixedly arranged on the main shaft (6), one end of the double-head connecting lever (5) is in transmission connection with a permanent magnet output connection rod (3) through an upper moving connection part (4), and the other end of the double-head connecting lever (5) is in transmission connection with a transmission output connection rod (8) through a lower moving connection part (7). The permanent magnet breaker operation mechanism further comprises a handle seat (13), wherein one end of the handle seat (13) is sleeved on a locating shaft (24) through a bearing (25). The permanent magnet breaker operation mechanism is provided with the emergency separating brake device which is in integration with the permanent magnet breaker operation mechanism, the double-head connecting lever is designed, operation reliability of a permanent magnet breaker is improved, mechanism transmission links are simplified, and management cost of users are lowered.

Description

technical field [0001] The invention relates to the field of permanent magnet high-voltage vacuum circuit breakers, in particular to an operating mechanism of a permanent magnet circuit breaker with an emergency opening device. Background technique [0002] The operating mechanism of the traditional high-voltage vacuum circuit breaker mainly adopts a spring mechanism, which has many parts and complicated transmission, so there are many fault sources and a high failure rate during operation, which brings a lot of repair and maintenance workload to the user unit. The vacuum circuit breaker with permanent magnet mechanism that has appeared in recent years has attracted much attention due to its advantages of fewer main moving parts, reliable operation, and better coordination of mechanical characteristics and vacuum circuit breaker than traditional operating mechanisms. The permanent magnet mechanism adopts the principle of electromagnetic drive and permanent magnet retention t...

AI Technical Summary

Problems solved by technology

(2) Using part of the characteristics of the spring mechanism for reference, multiple sets of single crank arms are used in the transmission link to obtain torque output; (3) The layout of the mechanism box is not particular, and the installation position of the permanent magnet mechanism and power electronic devices is unreasonable; such The problems in the design are: (1) The emergency opening accessories are not easy to manage, which is easy to cause power operation accidents; (2) The transition of multiple sets of single crank arms causes more transmission losses and increases mechanical failure points; (3) The mechanism box is messy, and the key Small space for component debugging and maintenance, resulting in high user management costs

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