A spring operating mechanism for a load switch

Abstract

The invention discloses a spring operation mechanism for a load switch. The spring operation mechanism is provided with two parallel side plates which are arranged at intervals, wherein a motor driving unit, a manual driving unit, an energy storage transmission unit and an output shaft are arranged on the basis of the two side plates, wherein a primary linkage rod of the energy storage transmission unit is connected with a motor shaft of the motor driving unit and a shifting rotating shaft of the manual driving unit separately, and the output shaft is connected with a last-stage linkage rod ofthe energy storage transmission unit. In particular, the spring operation mechanism is provided with a mechanical unlocking and locking unit, and an unlocking and locking shaft of the mechanical unlocking and locking unit is driven to rotate to open transmission of one of the two driving units with the energy storage and transmission unit in a linkage mode and to lock the other driving unit. Whenthe spring operation mechanism provided by the invention is applied to the load switch, the flexibility of switching operation of the two driving modes and the operability of manual driving are improved; the spring operation mechanism is optimized in a low-cost structure mode, and modular replacement can be realized easily for maintaining, thereby breaking through the function limitation of a traditional load switch related structure.

Description

technical field

[0001] The invention relates to a mechanical operating mechanism, in particular to a spring operating mechanism used for a load switch to perform high-voltage disconnection and passage. Background technique

[0002] With the continuous development of the national economy, the grid structure and load characteristics are becoming more and more complicated. In order to protect equipment and personal safety, higher requirements are put forward for the safety and reliability of power supply. Load switch (also known as high-voltage vacuum circuit breaker) is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has small size, light weight, suitable for frequent operation, extinguishing The arc does not need to be repaired, and it is widely used in the distribution network. The vacuum circuit breaker is an indoor power distribution device in the 3-10kV, 50Hz three-phase AC system, which can b...

Examples

Embodiment Construction

[0021] The purpose and advantages of the present invention will be shown in detail through the following preferred embodiments in conjunction with the non-limiting description of the accompanying drawings. implementations, all fall within the scope of protection of the present invention.

[0022] The designer of the present invention aims at the problems emerging in the traditional spring operating mechanism used for load switches and combines years of experience in equipment design and manufacturing in this field, and proposes a new spring operating mechanism with a new design and superior performance, so as to solve the load problem. The switch is a matter of flexible switching between two operating modes and convenient operation. Such as figure 1 and figure 2 Shown is a schematic diagram of the assembly structure of the preferred embodiment of the spring operating mechanism. In order to better understand the essence and advantages of the structural improvement of the pr...

technical field

[0001] The invention relates to a mechanical operating mechanism, in particular to a spring operating mechanism used for a load switch to perform high-voltage disconnection and passage. Background technique

[0002] With the continuous development of the national economy, the grid structure and load characteristics are becoming more and more complicated. In order to protect equipment and personal safety, higher requirements are put forward for the safety and reliability of power supply. Load switch (also known as high-voltage vacuum circuit breaker) is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has small size, light weight, suitable for frequent operation, extinguishing The arc does not need to be repaired, and it is widely used in the distribution network. The vacuum circuit breaker is an indoor power distribution device in the 3-10kV, 50Hz three-phase AC system, which can b...

Examples

Embodiment Construction

[0021] The purpose and advantages of the present invention will be shown in detail through the following preferred embodiments in conjunction with the non-limiting description of the accompanying drawings. implementations, all fall within the scope of protection of the present invention.

[0022] The designer of the present invention aims at the problems emerging in the traditional spring operating mechanism used for load switches and combines years of experience in equipment design and manufacturing in this field, and proposes a new spring operating mechanism with a new design and superior performance, so as to solve the load problem. The switch is a matter of flexible switching between two operating modes and convenient operation. Such as figure 1 and figure 2 Shown is a schematic diagram of the assembly structure of the preferred embodiment of the spring operating mechanism. In order to better understand the essence and advantages of the structural improvement of the pr...

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