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Hydraulic spring operating mechanism

A technology of operating mechanism and hydraulic spring, applied in the direction of protection switch operation/release mechanism, power device inside the switch, etc., can solve problems such as energy waste, seal failure, etc., to improve structure compactness, reduce waste, and reduce parts Quantity effect

Active Publication Date: 2020-01-10
PINGGAO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hydraulic spring operating mechanism, which is used to solve the problems of energy waste and potential safety hazards of sealing failure caused by the operating mechanism in the prior art.

Method used

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Experimental program
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Effect test

Embodiment 1

[0034] The hydraulic spring operating mechanism in this embodiment is used to control the closing and opening of the high voltage circuit breaker.

[0035] Such as figure 1 As shown, the hydraulic spring operating mechanism includes a working cylinder 1, a spring energy storage device 3, a hydraulic system, a power generation piston cylinder 6 and a power generation device 7, and the hydraulic system includes an electromagnetic reversing valve 4, a fuel tank 5 and an oil circuit connecting each device .

[0036] Such as figure 2 As shown, the working cylinder 1 includes a cylinder body 11 and a differential piston 12. The cylinder body 11 is provided with a working cylinder inner cavity for the differential piston 12 to move. The differential piston 12 divides the working cylinder inner cavity into an upper working high-pressure chamber 16 and the lower working differential pressure chamber 17;

[0037] Such as figure 1 with figure 2 As shown, the upper side of the diff...

Embodiment 2

[0056] The difference with Embodiment 1 is mainly that the power generating device is different, and the power generating device in this embodiment is a linear power generating device, such as Image 6 As shown, it includes a mounting frame 102 installed between the sealing plate 2 and the sealing cover 9, and multiple sets of stator coils 101 are set on the mounting frame 102, and multiple sets of stator coils 101 are arranged along the axial direction of the generating piston rod 62, An insulating ring 104 is arranged between the adjacent stator coils 101, and a sleeve-shaped permanent magnet 103 is fixedly set on the generating piston rod 62. The sealing plate 2 is provided with a perforation for the permanent magnet 103 to pass through. The permanent magnet 103 and the The sealing plate 2 is tightly fitted; during the upward movement of the generating piston 61 , the permanent magnet 103 cuts the magnetic induction lines generated by the stator coil 101 , thereby generating...

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Abstract

The invention relates to the technical field of contact operating mechanisms of electric switches, and especially relates to a hydraulic spring operating mechanism. The operating mechanism comprises aworking cylinder, a spring energy storage device, a hydraulic system and a power generation piston cylinder. The operating mechanism has a buffer stroke in the closing and opening processes. The power generation piston cylinder comprises a power generation piston cylinder body and a power generation piston movably assembled in the power generation piston cylinder body, wherein the power generation piston is connected with a power generation device; one of the two cavities, which are separated by the power generation piston, of the power generation piston cylinder body is communicated with anoil tank in the hydraulic system, and the other is communicated with an inner cavity of a working cylinder at the upper end part of the working cylinder; or, one of the two cavities, which are separated by the power generation piston, of the power generation piston cylinder body is communicated with oil tank in the hydraulic system, and the other is communicated with the inner cavity of the working cylinder at the lower end part of the working cylinder. The operating mechanism is used for solving the problems of energy waste and potential safety hazard of sealing failure caused by the use of the operating mechanism in the prior art.

Description

technical field [0001] The invention relates to the technical field of a contact operating mechanism of an electric switch, in particular to a hydraulic spring operating mechanism. Background technique [0002] In the high-voltage circuit breaker, the closing and opening of the circuit breaker is generally realized by the operating mechanism, and it is maintained in the closing state or the opening state. [0003] The invention patent with authorized notification number CN106783420B records a spring energy storage type hydraulic operating mechanism for a circuit breaker, which is a commonly used operating mechanism in high-voltage circuit breakers; usually in order to improve For the mechanical life of the circuit breaker, a buffer stroke will be set during the closing process of the differential piston in the working cylinder of the operating mechanism, and a buffer stroke will also be set during the opening process of the differential piston. The buffer stroke is generally...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H3/24
CPCH01H3/24H01H71/10
Inventor 雷琴刘煜李海文韩国辉刘宇李宁程晓培杨秋蓉胡超然程军强张南林张进科
Owner PINGGAO GRP
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