Energy storage device of spring operating mechanism

Abstract

The invention discloses an energy storage device of a spring operating mechanism, which comprises arm plates, racket wheels, pawls, a crankshaft, a crank arm, a hydraulic delay unit and the like, wherein two racket wheels are fixed in two arm plates through racket wheel shafts respectively; the two racket wheels are connected and synchronized through a square shaft; non-return pawls are fixed in the two arm plates through non-return pawl shafts; two energy-storage pawls are sleeved on the crankshaft; the middle of the crank arm is sleeved on the crankshaft, the upper end of the crank arm runs through and is assembled with a roller shaft, and when the racket wheels rotate anticlockwise, projected scribing plates on the edges of the racket wheels push the roller shaft to move downwards, so that the energy-storage pawl is pushed to make the tip thereof separated from the edge of the racket wheel, and the other tip of the energy-storage pawl pushes the non-return pawls to make the tips of the non-return pawls separated from the edges of the racket wheels. When the scribing plate at the end of the ratchet wheel rotates around the roller shaft, the tips of the energy-storage pawls and the non-return pawls get close to the edge of the ratchet wheels again, and the lower shaft pin of the crank arm is connected with the hydraulic delay unit in series. The device has the advantages that: manufacturing cost is low; a large-torque clutch or one-way bearing is not required; process difficulty is low; mechanical service life is prolonged; and the like.

Description

technical field [0001] The invention belongs to the technical field of power transmission and transformation, and in particular relates to a device for providing elastic potential energy storage for a spring operating mechanism in a high-voltage circuit breaker. Background technique [0002] The spring operating mechanism is an important part of the high-voltage circuit breaker, and the energy storage device of the spring operating mechanism is the energy source for the opening and closing operation of the spring operating mechanism. In the conventional spring operating mechanism, due to the large torque of the ratchet, the ratchet cannot stop immediately when the operation is completed, and the ratchet will swing under the action of inertia and spring potential energy. The swing of the ratchet wheel causes serious damage to the ratchet pawl, and cannot store energy normally. In order to avoid damage to the ratchet, the ratchet is generally equipped with a one-way bearing o...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a spring operating mechanism energy storage device to solve the technical problems of traditional spring operating mechanisms such as high manufacturing cost, difficult process, and short service life of the machine.

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