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Rocking guide rod type electric operating mechanism for circuit breaker

A technology of electric operating mechanism and swinging guide rod, which is applied in the protection switch operation/release mechanism, contact drive mechanism, power device inside the switch, etc. The effect of good force transmission performance

Active Publication Date: 2010-07-28
WUXI KAIXUAN MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the electric operating mechanisms used in low-voltage circuit breakers adopt the method of worm gear plus gear set deceleration. Generally, there are as many as 8 to 10 gears, and it is difficult to reduce the volume to meet the current miniaturization requirements.

Method used

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  • Rocking guide rod type electric operating mechanism for circuit breaker
  • Rocking guide rod type electric operating mechanism for circuit breaker
  • Rocking guide rod type electric operating mechanism for circuit breaker

Examples

Experimental program
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Embodiment Construction

[0009] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0010] As shown in the figure: the circuit breaker uses a swing guide rod type electric operating mechanism, including the first transmission gear 2, the second transmission gear 3 and the worm 4 installed by the motor in the housing of the reduction box 1, and the worm 4 and the first transmission The gear 2 meshes, the first transmission gear 2 meshes with the second transmission gear 3, an eccentric shaft 5 is fixedly installed on the second transmission gear 3, and a pin shaft 6 is installed on the housing of the reduction box 1, and the pin shaft 6 is hinged with The swing rod 7 has an output tooth portion 7.1, and a waist-shaped hole 8 is opened on the swing rod 7, and the eccentric shaft 5 is inserted in the waist-shaped hole 8.

[0011] The worm screw 4 on the motor 9 is transmitted to the first transmission gear 2, and is transmitted to the second tran...

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PUM

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Abstract

The invention relates to a rocking guide rod type electric operating mechanism for a circuit breaker, comprising a first transmission gear, a second transmission gear and a worm which are rotationally erected in a reduction box shell by a motor, wherein the first transmission gear is meshed with the second transmission gear; the second transmission gear is fixedly provided with an eccentric shaft; the reduction box shell is provided with a pin shaft; the pin shaft is articulated with a rocking beam; the rocking beam is provided with an output tooth part and a waist-shaped hole; and the eccentric shaft is inserted into the waist-shaped hole. The invention has very good force transmitting performance because a transmission angle of the guide rod mechanism is equal to 90 degrees all the time, simple structure, small size, and the like.

Description

technical field [0001] The invention relates to an electric operating mechanism, in particular to a swing guide rod type electric operating mechanism for a circuit breaker. Background technique [0002] At present, low-voltage circuit breakers are developing in the direction of miniaturization, automation and intelligence, and the miniaturization of the electric operating mechanism, which is the core device of its automatic operation, directly determines the degree of miniaturization of contemporary low-voltage circuit breakers. At present, most of the electric operating mechanisms used in low-voltage circuit breakers adopt the method of worm gear plus gear set deceleration. Generally, there are as many as 8 to 10 gears, and it is difficult to reduce the volume to meet the current miniaturization requirements. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art and provide an electric operating mechanism...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/70H01H3/26H01H3/32
Inventor 徐磊汪永峰
Owner WUXI KAIXUAN MOTOR
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