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Circuit breaker for numerical control machine tools

A technology for CNC machine tools and circuit breakers, which is applied to circuits, protective switch operation/release mechanisms, and components of protective switches, etc., can solve the problems of low utilization rate of raw materials of circuit breakers, and achieve the effect of protecting lines and power sources.

Inactive Publication Date: 2019-03-22
南京美克斯精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The raw material utilization rate of the circuit breaker in the prior art is low

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below.

[0015] The circuit breaker of the present invention is mainly composed of a chassis, a chassis, an operating mechanism and various releases, and the releases include overcurrent releases, undervoltage releases, thermal releases, shunt releases and Free release. The chassis, the operating mechanism and the chassis are fixedly installed in the housing. The chassis is provided with a handcart operating hole, and the chassis is provided with pole guide rails horizontally. The three-phase poles are vertically arranged on the chassis and can be arranged along the The pole guide rail slides, and a transmission rod is arranged horizontally below the three-phase pole on the chassis. The transmission rod is arranged perpendicular to the pole guide rail. A crank arm is connected between the rod and the three-phase pole, and the transmission rod drives the three-phase pole to move up and down through the crank arm for closin...

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PUM

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Abstract

The invention provides a circuit breaker for numerical control machine tools, including a case, a chassis car, an operation mechanism and trippers. The case, the operation mechanism and the chassis car are fixedly installed in a housing. The chassis car is provided with a handcart operation hole. A pole guide rail is arranged horizontally on the chassis car. Three-phase poles are longitudinally and linearly arranged on the chassis car and can slide along the pole guide rail. A transmission rod is transversely arranged on the chassis car and below the three-phase poles. The transmission rod isarranged perpendicular to the pole guide rail. The transmission rod is connected with the operation mechanism, and is driven by the operation mechanism to move along the length direction of the transmission rod. A crank arm is connected between the transmission rod and the three-phase poles. The transmission rod drives the three-phase poles to move up and down through the crank arm to achieve closing or opening. The circuit breaker of the invention has the functions of overload, short-circuit and under-voltage protection, and has the ability to protect the lines and power supply.

Description

technical field [0001] The invention relates to the field of numerical control equipment, in particular to a circuit breaker for a numerical control machine tool. Background technique [0002] A circuit breaker refers to 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 within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. [0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/02H01H71/24
Inventor 夏天明
Owner 南京美克斯精密机械有限公司
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