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Operation mechanism of high-voltage vacuum load switch

A technology of vacuum load and operating mechanism, which is applied in high-voltage/high-current switches, high-voltage air circuit breakers, electric switches, etc., can solve the problems of high difficulty in opening and closing operations, disengagement, and failure of opening and closing, and achieves simple and convenient operation. Short opening and closing process, smooth clutch effect

Pending Publication Date: 2018-07-24
ZHEJIANG ZIGUANG ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution has the following disadvantages. Since the clutch is always subjected to the elastic force of the return spring, the handle is always pushed outwards, so that the handle is easy to escape from the handle insertion port during rotation, resulting in failure to open and close the brake, that is to say, the operation When the handle is turned, the operator needs to keep pressing the handle to overcome the thrust of the return spring, and the opening and closing operation is difficult

Method used

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  • Operation mechanism of high-voltage vacuum load switch
  • Operation mechanism of high-voltage vacuum load switch
  • Operation mechanism of high-voltage vacuum load switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the high-voltage vacuum load switch 1 includes a switch shaft 11, on which three knife switches 12 are arranged, and turning the switch shaft 11 can drive the knife switches 12 to realize circuit on-off. The operating mechanism of the high-voltage vacuum load switch 1 includes a manual sleeve 4, a fixing part 3 and an electric sleeve 2. Both the manual sleeve 4 and the electric sleeve 2 are sleeved on the switch shaft 11 and can rotate relative to the switch shaft 11. The part 3 is fixedly connected with the switch shaft 11 and is located between the manual sleeve 4 and the electric sleeve 2. The electric sleeve 2 is sleeved and engaged with the fixed part 3, so that the electric sleeve 2 can drive the switch shaft 11 to rotate under the drive of the motor. To switch the high-voltage vacuum load switch 1, the manual sleeve 4 and the fixed part 3 are connected through a flexible connector, and a cam mechanism is provided between the manual slee...

Embodiment 2

[0033] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that the end surface of the electric sleeve 2 close to the fixed part 3 has several triangular blocks protruding toward the side of the fixed part 3, these triangular blocks The blocks are evenly distributed around the switch shaft 11, and the end of the fixed block close to the electric sleeve 2 is also provided with a card slot that matches the above-mentioned triangular block, so that the electric sleeve 2 and the fixed piece 3 are clamped. Of course, the positions of the triangular block and the slot can be interchanged, and the triangular block can also be replaced by an arc-shaped block.

Embodiment 3

[0035] The technical solution of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the flexible connector is a tension spring, and the two ends of the tension spring are connected to the first fixing rod 31 and the first fixing rod 31 of the fixing member 3 respectively. The second fixed rod 42 of manual sleeve 4 is connected.

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Abstract

The present invention provides an operation mechanism of a high-voltage vacuum load switch, belonging to the technical field of high-voltage switches. The problem is solved that a current operation mechanism of a high-voltage vacuum load switch is high in manual operation difficulty. The operation mechanism of the high-voltage vacuum load switch comprises a manual sleeve and an electric sleeve, afixed piece sleeves a switch shaft arranged between the manual sleeve and the electric sleeve, the fixed piece is fixed with the switch shaft, the manual sleeve and the electric sleeve slidingly sleeve the switch shaft, the fixed piece is connected with the manual sleeve through a flexible connection piece, a clamping mechanism driving rotation of the fixed piece when the electric sleeve is rotated is arranged between the fixed piece and the electric sleeve, a reset spring sleeves the switch shaft, the manual sleeve and the electric sleeve form clamping under the action of the reset spring, the electric sleeve is provided with a cam surface, and the manual sleeve is fixedly connected with a push rod butted against the cam surface. The operation is simple, stable and reliable, and the safety is higher.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switches, and relates to an operating mechanism of a high-voltage vacuum load switch. Background technique [0002] The high-voltage vacuum load switch is an electrical appliance whose function is between the high-voltage circuit breaker and the high-voltage isolating switch. It has a firm arc extinguishing device and can switch a certain load current and overload current. It has been widely used in high-voltage power transmission and distribution. field. At present, the high-voltage vacuum load switch mainly uses a motor to drive the switch spindle to rotate to realize the opening and closing action; of course, in order to meet the opening and closing action in the case of motor failure, power failure, etc., it is generally equipped with a manual operation handle. In order to realize the automatic switching between electric and manual opening and closing and avoid damage to the electric dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/666
CPCH01H33/666
Inventor 周鹤铭
Owner ZHEJIANG ZIGUANG ELECTRIC APPLIANCE
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