A circuit breaker operating mechanism
An operating mechanism and circuit breaker technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of electrical system control safety hazards, inconvenient switching manual operation, inability to achieve instant braking, etc., to achieve intelligent operation control management, The effect of simple structure and low manufacturing difficulty
Active Publication Date: 2019-11-08
XUZHOU QUANBAO ELECTRICAL EQUIP
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Problems solved by technology
This structure has unreasonable places, such as too large volume, inconvenient manual switching, inaccurate opening and closing position, and inability to realize instantaneous braking, which brings safety hazards to the electrical system control
Method used
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Embodiment Construction
[0046] The present invention will be further described below in conjunction with the accompanying drawings.
[0047] Such as Figure 2 to Figure 8 As shown, the present invention provides a circuit breaker operating mechanism, including a brake mechanism, a power transmission mechanism and an opening and closing actuator;
[0048] The brake mechanism includes a brake bushing 12 fixed on the brake bracket 9-1, an electromagnet 13-1 fixed on the electromagnet bracket 13, a bushing 11-1 cooperating with the brake bushing 12, and a bushing 11 Arc surface grooves 12-1 are evenly distributed on the outer circumference of -1, and the inner shaft hole of the bushing 11-1 is fixed on the main shaft tail of the motor 11,
[0049] A half-shaft hole 12-2 is arranged on the inner circumference of the brake bushing 12, and one end of the half-shaft 12-7 that can be engaged with the arc surface groove 12-1 is installed in the half-shaft hole 12-2. 7. The contact end of the arc surface groo...
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The invention discloses a circuit breaker operation mechanism. The circuit breaker operation mechanism comprises a brake shaft sleeve fixed on a brake bracket, an electromagnet fixed on an electromagnet bracket, a shaft sleeve is mounted on the brake shaft sleeve in a matching manner, a speed changing box fixed on a speed changing box bracket and a central shaft mounted in a central shaft bracketshaft hole, wherein a cam toothed disc for driving a rack plate is fixed at the bottom of the central shaft; a ball compression spring and a ball are mounted in spring holes formed in the rack plate respectively; a closing positioning hole and an opening positioning hole, which correspond to the spring holes, are oppositely formed in a side face of a guide groove; a shell body bottom plate is fixedly provided with a closing travel switch and an opening travel switch. According to the circuit breaker operation mechanism disclosed by the invention, instant braking and rapid positioning can be realize, and reclosing operation is rapidly implemented; a manual purpose and an electric purpose are realized, and an outer hanging control system is matched to realize remote electric operation, so that closing and opening of a circuit breaker can be safer and more reliable; intelligent operation and control management of power transmission and distribution equipment is realized; the circuit breaker operation mechanism is simple in structure, small in manufacturing difficulty and high in part commonality, and the production cost is reduced to the greatest extent.
Description
technical field [0001] The invention relates to a circuit breaker operating mechanism, which belongs to the technical field of circuit breaker control. Background technique [0002] A circuit breaker is an electrical and power grid protection device that can manually or electrically open or close live circuits and automatically disconnect overload circuits or short-circuit circuits, and the circuit breaker operating mechanism is the most critical core component for operating the circuit breaker. [0003] The most widely used circuit breaker operating mechanism in the prior art is an upper motor drive, cam and plate hook structure. There are unreasonable places in this structure, such as too large volume, inconvenient switching manual operation, inaccurate opening and closing positioning, and inability to realize instantaneous braking, which brings safety hazards to the electrical system control. Contents of the invention [0004] In view of the problems existing in the ab...
Claims
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IPC IPC(8): H01H71/10
CPCH01H71/10
Inventor 冯仰怀朱晨明
Owner XUZHOU QUANBAO ELECTRICAL EQUIP