CN2209381Y

CN2209381Y - Compression spring energy storage mechanism for vacuum circuit breaker

Info

Publication number: CN2209381Y
Application number: CN 94242869
Authority: CN
Inventors: 朱小峰; 常青
Original assignee: DONGNAN POWER EQUIPMENT PLANT CHANGZHOU CITY
Current assignee: DONGNAN POWER EQUIPMENT PLANT CHANGZHOU CITY
Priority date: 1994-11-07
Filing date: 1994-11-07
Publication date: 1995-10-04
Anticipated expiration: 2004-11-07

Abstract

The utility model relates to a compression spring energy storage mechanism for a vacuum circuit breaker, which belongs to the important component of the vacuum circuit breaker in a high-voltage electrical appliance. The utility model is composed of a plate, a compression spring seat, a closing spring clamped between the plate and the compression spring seat, a roller and a cam which are arranged on the lower part of the compression spring seat, a clamping block and a spring which are arranged at the middle of the compression spring seat, andan output main column which is penetrated through the compression spring seat and the plate. The utility model avoids the defect of small energy that the prior art adopts a spring stretching fashion to prestore, adopts a compression spring to store energy, which makes an operating mechanism have maximum energy at the moment that the operating mechanism is closed. The utility model satisfies the closing characteristic of the vacuum circuit breaker.

Description

Compression spring energy storage mechanism for vacuum circuit breaker

The utility model relates to a kind of vacuum circuit-breaker compression spring energy agency, belongs to the important component part of vacuum circuit-breaker in the High-Voltage Electrical Appliances.

Known mechanism on the oil-minimum breaker is transplanted on the vacuum circuit-breaker, the spring operating mechanism of CT8 type and CT10 type spring operating mechanism and ZN12-10 type vacuum circuit-breaker all adopts the extension spring energy storage, mode storage elasticity potential energy with the spring stretching, vacuum circuit-breaker is closed a floodgate, but above-mentioned stored energy mechanism can not make spring that bigger energy pre-storage is arranged, and it is less or be zero that promptly spring is released dump energy behind the energy.

The purpose of this utility model is to avoid the above-mentioned weak point of prior art, and the big vacuum circuit-breaker compression spring energy agency of energy when a kind of closing operation is provided.

The purpose of this utility model reaches by following technical measures.

An affixed annulus under the of the present utility model one middle porose plate, the plate below is provided with the convex press spring base that is joined together by cylindrical shell and pedestal, be provided with column and spring that the lower end has the chassis in the convex press spring base, the diameter of the hole clipping on convex press spring base top is less than the diameter on column lower end chassis, column passes the hole clipping on convex press spring base top, annulus under the plate and plate hole, one switching-in spring is enclosed within on the cylindrical shell of annulus under the plate and convex press spring base, below spring, be provided with a fixture block in the hole of pedestal, one groove is arranged in the fixture block, the axle that has roller is housed on its cell wall, is being provided with the cam that is contained on the axle below the roller.

Switching-in spring is clamped between plate and the convex spring abutment as energy storage.The flexible support of spring that the vertical rod of output energy is held with fixture block, the roller that abuts against the cam lateral margin holds up fixture block in order to reduce friction, makes length of spring compressed.

The utility model compared with prior art has following advantage: the utility model has avoided prior art to adopt the spring stretching mode to give the little defective of energy storage capacity, adopted the compression spring energy-storage, have maximum energy when operating mechanism has just been closed a floodgate, satisfied the combined floodgate characteristic of vacuum circuit-breaker.

The explanation of accompanying drawing drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A upward view of Fig. 1.

Following the utility model will describe in detail embodiment (in conjunction with the accompanying drawings).

3 times affixed annulus 4 of plate of a centre porose 2 of the present utility model shown in Figure 1, plate 3 belows are provided with a convex press spring base 8 that is joined together by cylindrical shell 10 and pedestal 12, be provided with column 1 and spring 9 that the lower end has chassis 7 in the convex press spring base 8, the diameter of the hole clipping 6 of convex press spring base 8 upper ends is less than the diameter of column 1 lower chassis 7, column 1 passes the hole clipping 6 of convex press spring base 8 upper ends, the annulus 4 under the plate and the hole 2 of plate 3, one switching-in spring 9 is enclosed within on the annulus 4 and convex press spring base 8 cylindrical shells 10 under the plate 3, below spring 9, be provided with a fixture block in the hole 14 of pedestal 12, there is a groove 18(to see Fig. 2 in the fixture block 11), the axle 15 that has roller 13 is housed on its cell wall 19, and roller 13 belows are provided with the cam 16 that is contained on the axle 17.One end of one end of the axle 15 of roller 13 and the axle 17 of cam 16 is contained on the vacuum circuit-breaker main frame.

During energy storage, cam 16 is under the driving of hand-power or motor, clockwise direction rotates, along with the increase of cam 16 radius of curvature, convex press spring base 8 rises gradually, because plate 3 relative fixed are motionless, then switching-in spring 9 is compressed thereupon, its elastic potential energy is also increasing, and when the maximum radius of cam 16 contacts with roller 13 and slightly out-of-date, the compression of spring 9 and energy storage action finish thereupon.

When releasing energy, cam 16 still moves clockwise, and in the extremely short time, promptly transfer least radius to by maximum radius, spring 9 compressions simultaneously and energy stored change kinetic energy sharp into to be exported by vertical rod 1, acting curve of the present utility model is in rising trend, has satisfied the combined floodgate characteristic of vacuum circuit-breaker admirably.

Claims

1, a kind of vacuum circuit-breaker compression spring energy agency, the following affixed annulus [4] of plate [3] that it is characterized in that a centre porose [2], plate [3] below is provided with the convex press spring base [8] that is joined together by cylindrical shell [10] and pedestal [12], be provided with column [1] and spring [9] that the lower end has chassis [7] in the convex press spring base [8], the diameter of the hole clipping [6] on convex press spring base [8] top is less than the diameter of column [1] lower chassis [7], column [1] passes the hole clipping [6] on convex press spring base [8] top, the annulus [4] under the plate [3] and the hole [2] of plate [3], one switching-in spring [9] is enclosed within on the cylindrical shell [10] of annulus [4] under the plate [3] and convex press spring base [8], below spring [9], be provided with a fixture block [11] in the hole [14] of pedestal [12], one groove [18] is arranged in the fixture block [11], the axle [15] that has roller [13] is housed on its cell wall [19], is provided with the cam [16] that is contained on the axle [17] in roller [13] below.