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Electric operating mechanism for switchgear

It is a technology of electric operation and switchgear, which is applied in the field of electric operation mechanism, which can solve the problems that cannot meet the requirements of use, and achieve the effect of excellent transmission characteristics, small size and simple processing

Active Publication Date: 2011-12-21
西安西电高压开关操动机构有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of driving cam, driving fan gear coaxial, driven cam, driven gear coaxial gear / cam combined transmission device is improved, and the mechanism output rotation angle that may be realized can only reach about 3 / 4 rotation at most, which cannot meet the requirements of the matching mechanism. Requirements for the use of isolating switches and earthing switches with multiple input rotation angles

Method used

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  • Electric operating mechanism for switchgear
  • Electric operating mechanism for switchgear
  • Electric operating mechanism for switchgear

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, the present invention is mainly made up of core 1, mechanism box 2 and manual operation interlocking device 3. The core 1 and manual operation interlocking device 3 are fixed in the mechanism box 2, and the mechanism box 2 is provided with a box Ventilation window 2a for internal and external ventilation, connectors 2b and 2c for leading and introducing electrical connection wires of the mechanism, opening and closing position indicator 2d, protective cover 2e for manual operation interlocking device.

[0032] In this embodiment, the steering of the output shaft of the mechanism is counterclockwise for opening and clockwise for closing. Such as Figure 4 shown.

[0033] Such as figure 2 , image 3 As shown, the mechanism core part includes a cast aluminum mechanism bracket 24 on which a main sha...

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Abstract

An electric operation mechanism used in gas insulated metal-enclosed switchgear (GIS) adopts a gear / cam combined transmission device with a maximum output turn angle of three turns. In the gear / cam combined transmission device, a main shaft (18) is coaxially fixed with a driving fan-shaped gear (11) and a transmission gear (14). A transmission fan-shaped gear (10) is fixed with a driven cam (9) and sleeved on the main shaft (18) with a clearance for synchronously rotating around the main shaft (18). An output shaft (20) is coaxially fixed with a driven gear (22) which is meshed with the transmission fan-shaped gear (10). A driving cam (8) is fixed with a transmission gear (7) and sleeved on the output shaft (20) with a clearance for synchronously rotating around the output shaft (20). The electric operation mechanism also adopts a pair of cams (15, 16) to drive an auxiliary switch (17) to be switched. The auxiliary switch (17) abuts on a driving shaft such that the size of the mechanism is reduced. The electric operation mechanism has good transmission characteristics, small impact forces during starting and being put in place in switching on or switching off, high accuracy of the output turn angle, accurate and reliable location and preservation of being put in place in switching on or switching off.

Description

Technical field: [0001] The invention relates to the field of electric operating mechanisms, in particular to an electric operating mechanism used in gas-insulated metal-enclosed switchgear (GIS). Background technique: [0002] With the continuous development of high-voltage switchgear, the opening and closing of some isolating switches or grounding switches in high-voltage switches adopts two transmission modes: gear / rack or screw / nut, which requires switch input (mechanism output) The angle of rotation is multi-turn to meet the needs of the stroke. [0003] The existing electric operating mechanism that can realize multi-rotation output, the main transmission structure is a gear transmission device, the output rotation angle accuracy is not high, and in order to reduce the impact, a clutch that limits the transmission torque is used, and multiple components are used for closing and opening positioning. Combined positioning device. The number of parts and the links that a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/26H01H9/20
CPCH01H3/42H01H33/36H01H3/40
Inventor 张红军邓洪祥
Owner 西安西电高压开关操动机构有限责任公司
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