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Circuit breaker three-position disconnecting switch integrated operation mechanism for switch cabinet

A technology of isolating switch and operating mechanism, applied in contact drive mechanism, air switch parts and other directions, can solve the problems of inability to achieve fast closing, and the circuit breaker cannot realize simultaneous operation of multi-position blades, and achieve fast closing. brake effect

Pending Publication Date: 2022-02-18
QUANZHOU DAXIYANG ELECTRIC POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Circuit breakers are widely used in industrial production and daily life. The main function is to close and disconnect the circuit. Alias: air switch, safety switch, no-fuse switch. The circuit breaker will cut off the circuit in the case of short circuit and severe overload, thereby Effective protection of electrical appliances in the circuit, high-voltage circuit breakers, the most common are gas circuit breakers and vacuum circuit breakers, vacuum circuit breakers are mostly used in power systems of 35kV and below; gas circuit breakers (SF6 circuit breakers) are mostly used in power systems above 35kV device), and most of the circuit breakers cannot realize the simultaneous operation of multi-position switch blades, and cannot achieve fast closing when the circuit breaker is closed. For this reason, a three-position circuit breaker for switchgear is proposed Integrated operating mechanism of isolating switch

Method used

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  • Circuit breaker three-position disconnecting switch integrated operation mechanism for switch cabinet
  • Circuit breaker three-position disconnecting switch integrated operation mechanism for switch cabinet
  • Circuit breaker three-position disconnecting switch integrated operation mechanism for switch cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: refer to Figure 1-5 , an integrated operating mechanism for a circuit breaker three-position isolating switch for a switchgear, including a first side plate 1 and a second side plate 7, and the four corners on one side where the first side plate 1 and the second side plate 7 are close to each other A support column 16 is welded, wherein the end of the support column 16 away from the first side plate 1 penetrates and extends to the left side of the second side plate 7, and the end of the support column 16 located on the left side of the second side plate 7 is welded with a limiting panel 5, The side of the limit panel 5 close to the second side plate 7 is respectively rotatably connected with two cross sub-shafts 2 and a cross main shaft 11 that pass through and extend to the right side of the second side plate 7. The cross main shaft 11 and the cross sub-shaft 2 One end on the right side of the second side plate 7 is rotatably connected to the side of t...

Embodiment 2

[0024] Embodiment two: refer to Figure 1-5 , on the basis of Embodiment 1, it is an integrated operating mechanism for a three-position isolating switch of a circuit breaker for a switch cabinet, and a second gear is welded on the outer ring of the cross countershaft 2 away from the first fixed sleeve 6 15. The first gear 12 is welded to the outer ring of the cross spindle 11 away from the second fixed sleeve 9. The first gear 12 and the two second gears 15 mesh with each other. The second breaking arm 8 is far away from the second fixed sleeve 9 A second fixing bolt 10 is set at one end of the cross spindle. When the cross spindle 11 rotates, the second fixing sleeve 9 is stressed and rotates the second breaking arm 8, and the second breaking arm 8 is connected to the circuit breaker through the second fixing bolt 10. The switch knife in the first station is fixed, so the first station realizes the circuit breaker, the two ends of the second fixing bolt 10 are provided with ...

Embodiment 3

[0025] Embodiment three: refer to Figure 1-5, on the basis of Embodiment 2, it is an integrated operating mechanism for a three-position isolating switch of a circuit breaker for a switch cabinet. The end of the cross spindle 11 located on the right side of the first side plate 1 is welded with a first rotating shaft 17. One end of a rotating shaft 17 away from the cross spindle 11 is welded with two first movable plates 18, and the end of the first movable plate 18 away from the first rotating shaft 17 is hinged with a second movable plate 21, and the second movable plate 21 is far away from the first movable plate One end of 18 is hinged with a second rotating shaft 20. When the circuit breaker is closed, the rotary switch 14 is rotated in the opposite direction, and the rotary switch 14 is reset while being reversed. The elastic potential energy of the spring 19 and the pressing force between the first movable plate 18 and the second movable plate 21 force the first rotati...

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Abstract

The invention discloses a circuit breaker three-position disconnecting switch integrated operating mechanism for a switch cabinet, relates to the field of circuit breakers, and solves the problems that a circuit breaker switch in a circuit breaker cannot be operated in a three-position integrated manner and the like. The circuit breaker three-position disconnecting switch integrated operating mechanism comprises a first side plate and a second side plate, and supporting columns are welded to the four corners of the sides, close to each other, of the first side plate and the second side plate. The mechanism has the advantages that a cross-shaped main shaft drives a first gear to rotate while rotating, two second gears meshed with the first gear rotate in opposite directions and are the same as a second circuit breaking bent arm, a first circuit breaking bent arm is also connected with the other two positions on the circuit breaker through first fixing bolts, and under the rotating effect of a cross-shaped auxiliary shaft, the first circuit breaking bent arm carries out circuit breaking on the other two circuit breaker positions, then three-position integrated circuit breaking operation is achieved, the elastic potential energy of a reset spring forces a first rotating shaft to rapidly rotate to the original position, and rapid closing is achieved.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to an integrated operating mechanism for a three-position isolating switch of a circuit breaker used in a switch cabinet. Background technique [0002] Circuit breakers are widely used in industrial production and daily life. The main function is to close and disconnect the circuit. Alias: air switch, safety switch, no-fuse switch. The circuit breaker will cut off the circuit in the case of short circuit and severe overload, thereby Effective protection of electrical appliances in the circuit, high-voltage circuit breakers, the most common are gas circuit breakers and vacuum circuit breakers, vacuum circuit breakers are mostly used in power systems of 35kV and below; gas circuit breakers (SF6 circuit breakers) are mostly used in power systems above 35kV device), and most of the circuit breakers cannot realize the simultaneous operation of multi-position switch blades, and cannot achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/02H01H3/32H01H3/40
CPCH01H31/02H01H3/32H01H3/40
Inventor 王汉钦王金城王钦煌王汉泽张灿波
Owner QUANZHOU DAXIYANG ELECTRIC POWER TECH CO LTD