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High power hydraulic actuating mechanism

A technology of hydraulic actuation and actuation mechanism, which is applied to high-voltage air circuit breakers, high-voltage/high-current switches, power devices inside switches, etc. and other problems, to achieve the effect of uniform deformation, stable output force value of the mechanism, and easy combination.

Active Publication Date: 2009-04-01
西安西电高压开关操动机构有限责任公司 +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, when the number of discs increases beyond a certain amount, a series of problems such as uneven deformation of the disc spring and unstable output force will occur.
[0005] 3. With the increase of the diameter of the oil cylinder, the second stage (reversing valve) of the two-stage series amplification of the control valve needs to further increase the flow diameter of the valve port, while the front stage solenoid valve remains unchanged, which will cause insensitive response , the action time is too long
[0006] Due to the limitations of the above reasons, the operating mechanism of this structure is only suitable for occasions where the operating power is ≤18KJ

Method used

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Embodiment Construction

[0026] figure 1 It is a schematic diagram of the structure and principle of the hydraulic disc spring mechanism of the double disc spring group accumulator in embodiment 1,

[0027] Such as figure 1As shown, the disc spring accumulator in embodiment 1 is a double disc spring group accumulator, which is symmetrically distributed on both sides of the working cylinder 11, the outer end of the disc spring group 3 is fixed, and the inner end is pressed against the outer end surface of the support ring 4 , The energy storage piston 5 tightly presses the inner end surface of the support ring 4 and is installed in the energy storage cylinder 2; the internal oil passage of the energy storage cylinder 2 communicates with the working cylinder 11. In this structure, the disc spring assembly 3 is mounted on the periphery of the accumulator bracket 27, which is pressed on the accumulator bracket 27 by the support ring 4, and the accumulator bracket 27 is connected with the accumulator cy...

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Abstract

This invention relates to one breaker operation structure and in detail to one multi-memory parallel drive hydraulic operation structure with large power in large operation situations, which comprises work cylinder, operation structure piston bar, disc spring set, memory cylinder, supportive ring, memory rack, control valve, oil channel and pressure oil pump. The invention is characterized by connecting disc memory device.

Description

technical field [0001] The invention relates to an operating mechanism of a circuit breaker, and more specifically relates to a high-power hydraulic operating mechanism with parallel transmission of multiple (disc spring group) accumulators, which is suitable for larger operating work occasions. Background technique [0002] At present, the traditional hydraulic disc spring operating mechanism that is widely used in the hydraulic disc spring operating mechanism of high-voltage circuit breakers, whether it is a single oil cylinder or multiple oil cylinders, has only one set of disc spring energy accumulators; the control valve system is also Both are two-stage series amplification; the pressurized oil pumps are all single-piston pumps, and the specific structure is shown in the invention patent 94118817.5 and the utility model patent 02280815.9. With the increasing requirements of the circuit breaker for the operating work of the operating mechanism, the traditional hydraulic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/24H01H3/30H01H33/34H01H33/40
Inventor 陈保伦张猛王建西周仙娥姜章兰张锐
Owner 西安西电高压开关操动机构有限责任公司
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