CN203536243U

CN203536243U - Energy storing and positioning pinch plate of universal circuit breaker mechanism

Info

Publication number: CN203536243U
Application number: CN201320551591.2U
Authority: CN
Inventors: 苗成龙; 周树芳
Original assignee: Jingyi Electrical Appliances Factory Co Ltd Shanghai; SHANGHAI JINGYI ELECTRICAL APPLIANCE CO Ltd
Current assignee: Jingyi Electrical Appliances Factory Co Ltd Shanghai; SHANGHAI JINGYI ELECTRICAL APPLIANCE CO Ltd
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2014-04-09
Anticipated expiration: 2023-09-05

Abstract

An energy storing and positioning pinch plate of a universal circuit breaker mechanism comprises a re-pinching face contacting with an energy storage half-shaft after energy storage, an installation hole of the pinch plate, a working face, a positioning face bearing a ball pair on a cam after energy storage, a transition angle of a turning radius of the pinch plate, and a spring hook. The main body of the working face is a plane, and the two ends of the plane extend respectively to form arc-shaped faces. According to the pinch plate of the utility model, the shape of the working face of the pinch plate is changed from a semi-circular shape into a rectangular-circular shape (i.e., the main body is a plane while the two ends of the plane extend respectively to form arc-shaped faces), and the single force bearing point is divided into two force bearing points. Thus, the minimum cross section of the pinch plate is prevented and the phenomenon of pinch plate breakage due to impact of the ball pair on the cam after energy storage is completed is solved.

Description

Omnipotent breaker mechanism energy storage location buckle

Technical field

The utility model relates to a kind of electric component, relates in particular to a kind of omnipotent breaker mechanism's energy storage location buckle.

Background technology

The structure of the omnipotent breaker mechanism energy storage location use buckle 1 of prior art as shown in Figure 1, it comprises after energy storage the buckle side again 11 with energy storage semiaxis, the installing hole 12 of buckle, semicircle working face 13, after energy storage with cam on the locating surface 14 of ball pair, the transition angle 15 of the buckle radius of gyration and spring carrier arm 16.Mechanism is the important drive disk assembly of circuit breaker, circuit breaker is splitting or integrating lock normally, and mechanism plays an important role, and after energy storage, locates the vital part that buckle is mechanism, can guarantee that mechanism, in reliable energy pre-storage state, can carry out closing operation by command request at any time.When Cam ball pair is done energy storage campaign under motor effect, the location buckle clearance plane corresponding with bearing 71 on lever is semicircle working face, after mechanism's main spring energy storage, buckle can be subject to from the instant impact of spring potential energy and final static pressure, the semicircle working face top that is delivered to buckle produces concentrated stress, because the planform of this part causes the minimum phenomenon of rupture that easily occurs in 15Chu cross section, transition angle from semicircle working face 13 tops to the buckle radius of gyration.The omnipotent breaker mechanism energy storage of prior art is located with the assembly structure of buckle 1 referring to Fig. 2 (being assemblied on left plate).Installing hole on buckle 1 12 is inserted on rotation axis 3, with location jump ring 4, buckle is fixed, back-moving spring 5 is hung on the spring carrier arm 16 of buckle, buckle 1 is rested on buckle locating shaft 2 at the effect lower pinch plate locating surface 18 of spring 5 power, then be assembled into whole mechanism (coordinating referring to Fig. 4) with the left side plate assembling and the good cam of riveted, lever, semiaxis, energy-stored spring etc.

Utility model content

The purpose of this utility model, the problem existing in order to solve above-mentioned prior art exactly, provides a kind of omnipotent breaker mechanism's energy storage location buckle.

To achieve these goals, the utility model has adopted following technical scheme: a kind of omnipotent breaker mechanism's energy storage location buckle, comprise after energy storage the buckle side again with energy storage semiaxis, the installing hole of buckle, working face, after energy storage with cam on the locating surface of ball pair, transition angle and the spring carrier arm of the buckle radius of gyration, the main body of described working face is plane, and plane two ends extend to respectively arcwall face.

Described plane is corresponding to the transition angle of the described buckle radius of gyration.

Omnipotent breaker mechanism's energy storage of the present utility model location has changed traditional structural design shape with buckle, by semicircle, changing the shape of working surface of buckle into rectangular circle (is that main body is plane, plane two ends extend to respectively arcwall face), a stress point is resolved into 2 stress points, the smallest cross-sectional of having evaded buckle, solve buckle when energy storage is complete, be subject to the impact of the ball pair on cam to make the phenomenon of buckle fracture.

Accompanying drawing explanation

Fig. 1 is the structural representation of buckle for prior art omnipotent breaker mechanism energy storage location.

Fig. 2 is the assembly structure schematic diagram of buckle for prior art omnipotent breaker mechanism energy storage location.

Fig. 3 is the structural representation of buckle for the utility model omnipotent breaker mechanism energy storage location.

Fig. 4 is the assembling schematic diagram that the utility model buckle and energy storage semiaxis, cam, lever and energy-stored spring are arranged on mechanism.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

Referring to Fig. 3, Fig. 4, omnipotent breaker mechanism's energy storage of the present utility model location buckle, comprise after energy storage the buckle side again 11 with energy storage semiaxis, the installing hole 12 of buckle, working face 17, after energy storage with cam on the locating surface 14 of ball pair, the transition angle 15 of the buckle radius of gyration and spring carrier arm 16, and buckle locating surface 18.The main body 171 of working face 17 is wherein plane, and plane two ends extend to respectively arcwall face 172,173.Plane 171 is corresponding to the transition angle 15 of the described buckle radius of gyration.

The assembly structure that the utility model buckle and energy storage semiaxis, cam, lever and energy-stored spring are arranged on mechanism as shown in Figure 4.Its assembling and operation principle can be described as follows in conjunction with Fig. 4 (coordinating referring to Fig. 2):

Assembling process is first the installing hole on buckle 1 12 to be inserted on rotation axis 3, with location jump ring 4, buckle is fixed, again back-moving spring 5 is hung on the spring carrier arm 16 of buckle, buckle 1 is rested on buckle locating shaft 2 at the effect lower pinch plate locating surface 18 of spring 5 power, and the cam 8 that the left side plate that then use assembles and riveted are good, lever 7, energy storage semiaxis 6, energy-stored spring 10 etc. are assembled into whole mechanism.

Energy storage cam 8 produces moment M and rotates and carry out energy storage under the drive of motor or handle, after reaching energy storage peak value, electromechanical interlocks (not occurring in the drawings) can cut off motor circuit, under the effect of spring potential energy, order about secondary 81 roll extrusion of ball on cam 8 on the locating surface 14 of buckle, produce directed force F 2, force rotate moving axis 3 of buckle to rotate, make the buckle side again 11 of buckle contact and be pressed on energy storage semiaxis 6, produce counter-force F1 and finally reach equalising torque, whole thermal energy storage process finishes.The working face of the buckle of prior art is semicircle working face (referring to Fig. 1), is being subject under the effect of making a concerted effort, and produces concentrated stress, because cross section between this stress point place and the transition angle 15 of the buckle radius of gyration is minimum on the semicircle working face of buckle summit.When the potential energy of energy-stored spring is large, buckle is easily ruptured by comprehensive impulsive force herein, so be not suitable for the frame circuit breaker of large electric current.The working face of buckle of the present utility model (is that main body is plane owing to having adopted rectangular circle, plane two ends extend to respectively arcwall face), it has changed the size and location of concentrated stress and has located number, decomposed stressed direction, be specially adapted in the circuit breaker of large specification, can guarantee the reliability of closing a floodgate, the extending mechanism life-span.Shown in Fig. 4,7 is lever, and 71 is the bearing on lever, and 8 is energy storage cam, and 9 is mechanism's left plate, and 10 is energy-stored spring.

Claims

1.Yi Zhong omnipotent breaker mechanism's energy storage location buckle, comprise after energy storage the buckle side again with energy storage semiaxis, the installing hole of buckle, working face, after energy storage with cam on the locating surface of ball pair, transition angle and the spring carrier arm of the buckle radius of gyration, is characterized in that: the main body of described working face is plane, and plane two ends extend to respectively arcwall face.

2. omnipotent breaker mechanism's energy storage as claimed in claim 1 location buckle, is characterized in that: described plane is corresponding to the transition angle of the described buckle radius of gyration.