Maintenance-assistant device with liftable and overturning circuit breaker base plate

Abstract

The present invention discloses a maintenance-assistant device with a liftable and overturning circuit breaker base plate. The device comprises a lifting support, the lifting support is provided withcross slide rails, the cross slide rails are connected with a clamping arm module, the clamping arm module comprises a left side clamping arm and a right side clamping arm separately arranged at leftand right sides side by side, the inner sides of the front ends of the left side clamping arm and the right side clamping arm are hinged with an overturning support, the left side clamping arm and theright side clamping arm are connected with a horizontal ball screw respectively through a left nut and a right nut, the horizontal ball screw is connected with a clamping motor, the clamping motor drives the horizontal ball screw, the horizontal ball screw drives movement of the left and right nuts, and the left and right nuts respectively drive the movement of the left side clamping arm and theright side clamping arm along the cross slide rails. The maintenance-assistant device can achieve lifting and overturning functions, is convenient to maintain, low in cost, good in safety performanceand high in operability.

Description

technical field [0001] The invention relates to electric power maintenance equipment, in particular to circuit breaker chassis maintenance equipment. Background technique [0002] The circuit breaker chassis is an important part of the circuit breaker. The chassis and the central cabinet body are insulated and coordinated, and mechanically interlocked, safe, reliable and flexible. The chassis has an isolated maintenance position and a working position in the cabinet, and each position is equipped with a positioning device to ensure reliable interlocking, and must be operated according to the interlocking anti-misoperation procedure. The chassis adopts nuts and screw rods to shake and advance and withdraw, which is easy to operate. Once the chassis fails, it will affect the normal operation of the switchgear, and in severe cases, it will cause a power outage on a certain line. [0003] In order to enhance the reliability of power supply, it is required that the power failu...

AI Technical Summary

Problems solved by technology

This problem is mainly manifested in the S8 and S9 micro switch nodes in the chassis are damaged or the wiring is loose and the contact is not good, etc., requiring maintenance personnel to rush to the scene to deal with it

[0007] (2) Interlocking bending plate fracture

If the interlock lever bends and cannot return to shape after multiple locking actions, it will cause the circuit breaker to be swung in or out after closing, which seriously violates the requirements of the "Electrical Safety Work Regulations": the disconnector cannot be opened and closed with load

The result of misoperation will cause equipment discharge and cause personal injury, so maintenance personnel need to deal with it immediately

[0009] (4) Turbine and worm damage

Because in the state of 90 degrees, the handcart cannot shake because the limit pin touches the ground

However, in the process of processing, the handcart has to be shaken in and out many times, which causes the maintenance personnel to turn over the handcart repeatedly. This method is very prone to the overall breakage of the circuit breaker and the contact of the pole head. Deformation, skew damage of spring mechanism, injury of maintenance personnel, etc., thus causing greater damage

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