Circuit-breaker spring actuating mechanism

Abstract

The invention provides a circuit-breaker spring actuating mechanism which comprises a frame, an energy storage component, a closing component and an opening component, wherein the energy storage component comprises an energy storage driving device, a big gear, an energy storage shaft, two energy storage crank arms, two closing springs, an energy storage clutching block and an energy storage maintaining latch; the closing component comprises a closing driving device, a closing electromagnet bent plate and a closing driving crank arm; and the opening component comprises an opening driving device and an opening electromagnet bent plate. The internal space of the actuating mechanism is fully utilized, the assembling positions of parts are accurate, functional units are distributed in an orderand centralized way, the completeness of functions and the reliability of transmission links are ensured, and the integration of the actuating mechanism is realized. Meanwhile, the balance of stressing and the rationality of structure during the actuating process of the circuit breaker are fully considered, the designed circuit-breaker spring actuating mechanism has compact structure and small size, different specifications of circuit-breaker frames can be assembly easily, and great convenience is brought for large-scale production and product generalization.

Description

technical field [0001] The invention belongs to the field of circuit breakers, and in particular relates to a spring operating mechanism of a circuit breaker. Background technique [0002] At present, the circuit breaker operating mechanism is mainly divided into three types: modular structure, component dispersed structure and split structure. The modular structure means that the components are distributed on the frame of the circuit breaker according to the energy storage module, closing module, opening module and status indicating module. The positioning of the circuit breaker body is the positioning of several functional modules, so that the circuit breaker Assembly and maintenance are extremely convenient, but its complex mechanism and large shape bring various inconveniences to the processing and relatively increase the product cost. The scattered structure of parts refers to the scattered arrangement of parts on the circuit breaker frame. This kind of operating mecha...

AI Technical Summary

Problems solved by technology

The modular structure means that the components are distributed on the frame of the circuit breaker according to the energy storage module, closing module, opening module and status indicating module. The positioning of the circuit breaker body is the positioning of several functional modules, so that the circuit breaker Assembly and maintenance are extremely convenient, but its complex mechanism and large shape bring various inconveniences to the processing and relatively increase the product cost

The scattered structure of parts refers to the scattered arrangement of parts on the circuit breaker frame. This kind of operating mechanism is characterized by accurate position, but it has many parts and is inconvenient for assembly and maintenance. Relative increase in processing costs

The split structure refers to the independently installed operating mechanism. The mechanical characteristics of the circuit breaker must be debugged after installation on the switch cabinet. In addition, the structure is complex and there are many connecting rods, so the relative position accuracy of the operating mechanism and the circuit breaker body is extremely high. Poor, making the matching characteristics of the mechanism output and the transmission system unstable

One of these operating mechanisms is a special operating mechanism, that is, one mechanism corresponds to one circuit breaker, which brings great inconvenience to the mass production and product generalization; the other is the operating mechanism and circuit breaker. The main body is installed in different positions of the switch cabinet, which is large in size and not compact enough. Neither of these two types of mechanisms can realize the standardization of the mechanism, which brings various inconveniences to assembly, commissioning, and maintenance, and cannot satisfy the integration, standardization, and miniaturization of circuit breakers. development trend

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