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Special lifting device for pneumatic mechanism of circuit breaker

A lifting device and circuit breaker technology, applied in cranes and other directions, can solve problems such as low work efficiency, crush injury, and high labor intensity.

Inactive Publication Date: 2012-09-19
STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only has high labor intensity, complicated operation, and low work efficiency, but also easily causes crushing and crushing of personnel, and the safety of personnel cannot be guaranteed.

Method used

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  • Special lifting device for pneumatic mechanism of circuit breaker
  • Special lifting device for pneumatic mechanism of circuit breaker
  • Special lifting device for pneumatic mechanism of circuit breaker

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0025] Such as figure 1 As shown, the special hoisting device for the pneumatic mechanism of the circuit breaker mainly includes a bracket 1, and a roller 2 is installed at the bottom of the bracket 1, and the bracket 1 can be conveniently pushed to move by the roller 2. A probe arm 3 is hinged on the upper part of the bracket 1, and one end of the probe arm 3 is hinged to the upper part of the bracket 1, so that the probe arm 3 can swing around the hinge axis. The other end of the probe arm 3 is equipped with a suspension plate 4, and the suspension plate 4 is provided with an assembly hole 5 matching with a threaded hole on the upper surface of the circuit breaker pneumatic mechanism. In this embodiment, the probe arm 3 includes a sleeve 7 hinged on the upper part of the bracket 1 and a probe rod 8 fitted with the sleeve 7, and a plurality of corresponding inserts are arranged on the sleeve 7 and the probe rod 8 in the axial direction. The mounting hole 9 is inserted with a...

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Abstract

The invention discloses a special lifting device for a pneumatic mechanism of a circuit breaker. The lifting device comprises a bracket supported by roller wheels, wherein the upper part of the bracket is hinged with an exploring arm; a hanging disc is arranged at the end part of the exploring arm; an assembling hole matched with a threaded hole in the upper end face of the pneumatic mechanism is formed in the hanging disc; the bracket is hinged with a jack for pushing the exploring arm to ascend and descend; the bracket comprises a base; a supporting column is arranged on the base; the upper end of the supporting column is hinged with the end part of the exploring arm; a transverse arm is fixedly arranged at one end of the base; a hinged plate is fixedly arranged at the other end of the base; the hinged plate is hinged with a supporting arm swinging along the wall of the hinged plate through a central hinged shaft; the hinged plate is provided with a horizontal bolt and a vertical bolt; the horizontal bolt is used for horizontally fixing the supporting arm on the hinged plate; the vertical bolt is used for vertically fixing the supporting arm on the hinged plate; and the roller wheels are arranged at two ends of the transverse arm and the outer end of the supporting arm. By adoption of the structure, the special lifting device for the pneumatic mechanism of the circuit breaker has a reasonable structure, can auxiliarily lift the pneumatic mechanism of the circuit breaker, is time-saving and labor-saving in operation and convenient to operate and control, and improves the work efficiency.

Description

technical field [0001] The invention relates to a special hoisting device for a circuit breaker pneumatic mechanism. Background technique [0002] A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions (including short-circuit conditions) within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Generally, those above 3kV are called high-voltage circuit breakers. High-voltage circuit breakers (or high-voltage switches) are the main power control equipment in power plants and substations, and have arc-extinguishing characteristics. When the system is running normally, it can cut off and connect the no-load and load currents of the lines and various electrical equipment; when the system fails, it cooperates with the relay protection to quickly cut off ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/06B66C23/62B66C23/687
Inventor 肖英俊王涛邱金海孙义法曲学东孔军庞志文杨晶晶李辉陈显军
Owner STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY
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