Large-power hydraulic operating mechanism

A hydraulically actuated, high-power technology, applied in the protection switch operation/release mechanism, the power device inside the switch, etc., to achieve the effects of convenient processing and assembly, high power and low fuel consumption

Inactive Publication Date: 2012-02-15
辽宁喀斯汀机电设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-power hydraulic operating mechanism to solve the problem of improving the traditional high-power hydraulic operating mechanism from a side-by-side inte

Method used

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Embodiment

[0039] A series-mounted integrated high-power hydraulic operating mechanism, including an energy storage cylinder and a disc spring module ( figure 1 ), working cylinder module ( image 3 ), control valve module ( Image 6 , 7 ), oil pump box module ( Figure 13 , 14 ) and brackets. The working cylinder module is coaxially set in the energy storage cylinder and the energy storage cylinder of the disc spring group module and fixed, and the oil pump box module, the control valve module and the working cylinder module are sequentially assembled together coaxially; the oil pump box module The oil tank communicates with the cylinder body of the working cylinder module through the high and low pressure oil circuits and signal oil circuits on the connecting end faces between the working cylinder module, the control valve module and the oil pump box module; the piston rod of the working cylinder module passes through the control The valve module and the oil pump box module; on th...

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Abstract

The invention discloses a large-power hydraulic operating mechanism which is used for super-high voltage and ultrahigh voltage sulfur hexafluoride circuit breakers. The large-power hydraulic operating mechanism comprises an energy storage cylinder, a butterfly group module, a work cylinder module, a control valve module and an oil pump tank module, wherein the work cylinder module is coaxially sheathed and fixed in the energy storage cylinder and an energy storage cylinder of the butterfly group module, and the oil pump tank module, the control valve module and the work cylinder module are sequentially and coaxially connected in series into a whole; an oil tank of the oil pump tank module is communicated with a cylinder of the work cylinder module through a high voltage oil circuit, a low voltage oil circuit and a signal oil circuit; a mechanical lock is arranged on the stroke of a piston rod, and the mechanical lock is matched with a connector at the top end of the piston rod through the top end of a crank to realize locking or delocking; and a connecting rod and a rack which are linked are fixed on energy storage flanges of the energy storage cylinder and the butterfly group module, and the other end of the connecting rod is connected with a safety valve outer crank in the control valve module. The hydraulic operating mechanism is changed from a parallel integrated mode into a series integrated mode with firm mechanical connection and good seal effect.

Description

technical field [0001] The invention belongs to the field of high-voltage power transmission and transformation equipment, and relates to a spring-energy-storage hydraulic operating mechanism for a high-voltage circuit breaker, which is used for ultra-high voltage and ultra-high voltage sulfur hexafluoride circuit breakers. Background technique [0002] The high-power hydraulic operating mechanism is an electric opening and closing drive device for high-voltage circuit breakers. Historically, the main structures of this type of products at home and abroad are all combined and integrated, that is, the working cylinder is the central module, and the Energy storage cylinders, control valves, oil pumps, safety valves and other modules are mounted horizontally on the working cylinder. Many seals and fasteners are used, the mechanical connection is not well stressed, and the high-pressure connection is easy to loosen and leak oil, so that the entire The reliability of the organiza...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H3/24
Inventor 张明军
Owner 辽宁喀斯汀机电设备有限公司
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