CN1937134A

CN1937134A - Circuit-breaker bundling type moveable contact special mounting tool

Info

Publication number: CN1937134A
Application number: CN 200610053505
Authority: CN
Inventors: 杨庆华; 周建明
Original assignee: JIYUAN ELECTRIC GROUP CO Ltd ZHEJIANG
Current assignee: Jiyuan Electric Group Co., Ltd.
Priority date: 2006-09-10
Filing date: 2006-09-10
Publication date: 2007-03-28
Anticipated expiration: 2026-09-10
Also published as: CN100423158C

Abstract

The dedicated installation tool is composed of spring clamp, extrusion cup and handle. The spring clamp is in shape of lamp cover. Shape of cavity of the clamp is matched to external shape of contactors of the moving contact. Scaling clearance grooves towards to opening on top of the cover are setup on wall of the cover. The extrusion cup is sheathed on periphery of the clamp. There is gap between base of the spring clamp and base of the extrusion cup. A pull rod connects with the clamp and the extrusion cup in series, the other end is connected to handle. Changing position of the handle makes the clamp stretch along axial direction inside cavity. Using the pull rod to control retraction of the spring clamp, the invention simulates hand to hold contacts. Thus, the contact arms can be assembled into breaker in advance to check and adjust distance and gap between contactors, and afterward to install contactors. The invention installs moving contactor and guarantees size of breaker.

Description

Circuit-breaker bundling type moveable contact special mounting tool

Technical field

The invention belongs to a kind of specific purpose tool that the mesohigh circuit-breaker bundling type moveable contact is installed.

Background technology

In middle and high voltage breaker, the main conductive circuit that has is that the bundling type moveable contact (being commonly called as the quincunx moving contact) by circle is realized with contacting of fixed contact.Moving contact is made up of contact and contact arm two parts, contacts with the effective of contact arm end for guaranteeing the contact inner chamber, and the contact periphery is provided with very tight spring, and therefore, the practical set difficulty is very big.The structure of moving contact as shown in Figure 1,5 for being tied to the binding spring among the figure, during assembling, needs that the contact mesopore 3 of contact 4 is aimed at contact arm ends 2 and insert, and both are combined.Before the present invention makes, assembly work needs to rely on artificial free-hand finishing fully, and it is in proper order: earlier contact 4 is installed in independently on contact arm 1 parts, more whole moving contact is assembled in the circuit breaker, adjust the distance and the spaced apart of the upper and lower contact of switch then, it is adhered to specification.The problem that exists is: the free-hand installation efficient that wastes time and energy is low, moreover, because strap-on contact can rock up and down, cause distance and the spaced apart of checking the upper and lower contact of switch to become very difficult, thereby can influence the accuracy of circuit breaker overall dimensions.

Summary of the invention

For overcoming above-mentioned deficiency of the prior art, the present invention aims to provide a kind of circuit-breaker bundling type moveable contact special mounting tool, by this instrument moving contact is installed, has time saving and energy saving advantage easy to assembly, the contact arm of moving contact can be assembled in the circuit breaker in advance, reach distance and the spaced apart checking earlier and adjust the upper and lower contact of switch, and then load onto contact, guarantee the circuit breaker quality.

For achieving the above object, the present invention has adopted following technical scheme: the structural feature of this circuit-breaker bundling type moveable contact special mounting tool is: it is made of spring clip, extrusion cup and Handleset three parts; The shape of spring clip is the lampshade shape, and the contact external shape of its cavity shape and moving contact is complementary, and the cover wall is provided with the convergent-divergent clearance groove to the cover top opening; Extrusion cup is nested with the periphery at spring clip, and the spring clip bottom has the gap apart from the extrusion cup bottom; Spring clip and extrusion cup are cascaded by a pull bar, and the pull bar other end and Handleset link, and the change in location of handle can make spring clip make axial stretching in the chamber of extrusion cup, causes the convergent-divergent of spring clip convergent-divergent clearance groove.

During concrete enforcement, Handleset is by handle, cam, and I-shaped spare is formed, pull bar is a stud, through two end nuts I-shaped spare, spring clip, extrusion cup axially are serially connected, I-shaped spare bilateral symmetry is installed the cam by the pivot pin location, on two cams handle is installed respectively.

During concrete enforcement, pull bar is a screw rod that has rotary handle, and the spring clip bottom is provided with the axis screw, and spring clip is the radial location shape, screw rod can make spring clip move axially in extrusion cup in the precession or the back-out of described screw, causes the convergent-divergent of spring clip convergent-divergent clearance groove.

Beneficial effect: the present invention is directed to this special installation tool that the design feature of bundling type moveable contact is designed, utilize the contraction of pull bar control spring folder, the anthropomorphic dummy manually does, thereby reach the clamping contact and solved the contact of moving contact and the assembly problem of contact arm well, it is compared with free-hand assembling, has realized purpose time saving and energy saving, that assembly quality is good.In addition, this instrument has been arranged after, the contact arm of moving contact can be assembled in the circuit breaker in advance, reached distance and the spaced apart checking earlier and adjust the upper and lower contact of switch, and then loaded onto contact, guarantee the accuracy of circuit breaker overall dimensions.

Description of drawings

The object that Fig. 1 will assemble for the present invention, the i.e. structural representation of prior art moving contact;

Fig. 2 is the assembly structure schematic diagram of one embodiment of the invention;

Fig. 3 is the assembly structure schematic diagram of another embodiment of the present invention.

Embodiment

Sequence number is represented respectively among the figure: contact arm 1, contact arm end 2, contact mesopore 3, contact 4, spring clip 10, convergent-divergent clearance groove 101, extrusion cup 20, rim of a cup 201, pull bar 30, last spindle nose 301, following spindle nose 302, nut 303, pad 304, spring clip nut 305, handle 50, cam 501, pivot pin 502, I-shaped spare 503, rotary handle 306, cushion cover 307.

Referring to Fig. 2 and in conjunction with Fig. 1, Fig. 2 shows the assembly structure situation of one embodiment of the invention.It is made of spring clip 10, extrusion cup 20 and Handleset three parts.The shape of spring clip 10 is the lampshade shape, contact 4 external shape of its cavity shape and moving contact are complementary, because the outermost of contact 4 is springs, the inner lip of spring clip 10 and inwall also should have corresponding shape, and spring clip 10 contact 4 under releasing orientation can be put into smoothly.The manufacturing materials of spring clip 10 can adopt spring steel, and for reaching zooming effect, the cover wall is provided with the convergent-divergent clearance groove 101 to the cover top opening.

Extrusion cup 20 is nested with in the periphery of spring clip 10, for giving spring clip 10 axial stretching leaving spaces, has the gap between spring clip 10 bottoms and extrusion cup 20 bottoms.The convergent-divergent of convergent-divergent clearance groove 101 is to be realized by the inner wall shape of the rim of a cup 201 of extrusion cup 20, therefore, the rim of a cup 201 of extrusion cup 20 should be slightly less than the cover mouth of spring clip 10, when the cover mouth falls in the rim of a cup 201, spring clip 10 is in the state of tightening, and initially then is in relaxation state.

Spring clip 10 and extrusion cup 20 are cascaded by a pull bar 30, and pull bar 30 is a stud.Handleset is made of handle 50, I-shaped spare 503, cam 501, pivot pin 502, and the middle part of I-shaped spare 503 and pull bar 30 are connected and fixed, and forms " T " font.The two ends of pull bar 30 spin with spring clip nut 305, nut 303 respectively, I-shaped spare 503, spring clip 10, extrusion cup 20 axially are serially connected, I-shaped spare 503 bilateral symmetry are installed by two cams 501 of pivot pin 502 location and installation, respectively fixedly mount a handle 50 on the cam 501, the plane of following two cams 501 of initial condition and I-shaped spare 503 baseplanes are in same plane, and be close on the lower surface of extrusion cup 20, and two 50 on handles have angle and are " eight " font.

This instrument in use, earlier the contact 4 of circuit-breaker bundling type moveable contact is packed in the spring clip of relaxation state (or entangle contact 4 with spring clip 10), inwardly push two handles 50 (dwindling the angle direction), two cams 501 are rotated along the lower surface of extrusion cup 20, jack-up I-shaped spare 503 drives spring clip 10 by pull bar 30 and all falls in the extrusion cup 20.At this moment, spring clip 10 tightens, and at this moment contact 4 can be inserted in gently the junction, contact arm end of contact arm 1.Draw back assembling or the dismounting that handle 50 can be finished moving contact of breaker in the other direction.

Referring to Fig. 3, and in conjunction with Fig. 1, Fig. 3 shows the assembly structure situation of another embodiment of the present invention.Pull bar 30 is a screw rod that has rotary handle 306 in the present embodiment, the bottom of spring clip 10 is provided with the axis screw, do radial location after spring clip 10 assemblings, to guarantee that screw rod can make spring clip 10 move axially in the precession or the back-out of described screw, causes the convergent-divergent of the convergent-divergent clearance groove of spring clip 10 in extrusion cup 20.Its operation principle is identical with a last embodiment.

Claims

1, a kind of circuit-breaker bundling type moveable contact special mounting tool is characterized in that: it is made of spring clip (10), extrusion cup (20) and Handleset three parts; The shape of spring clip (10) is the lampshade shape, and the external shape of the contact of its cavity shape and moving contact (1) is complementary, and the cover wall is provided with the convergent-divergent clearance groove (101) to the cover top opening; Extrusion cup (20) is nested with in the periphery of spring clip (10), and spring clip (10) bottom has the gap with extrusion cup (20) bottom; Spring clip (10) and extrusion cup (20) are cascaded by a pull bar (30), pull bar (30) other end and Handleset link, the change in location of handle can make spring clip (10) move axially in the chamber of extrusion cup (20), causes the convergent-divergent of spring clip (10) convergent-divergent clearance groove (101).

2, special installation tool as claimed in claim 1, it is characterized in that: Handleset is by handle (50), cam (501), I-shaped spare (503) is formed, pull bar (30) is a stud, through two end nuts I-shaped spare (503), spring clip (10), extrusion cup (20) axially are serially connected, I-shaped spare (503) bilateral symmetry is installed the cam (501) by pivot pin (502) location, on two cams (501) handle is installed respectively.

3, special installation tool as claimed in claim 1, it is characterized in that: pull bar (30) is a screw rod that has rotary handle (306), spring clip (10) bottom is provided with the axis screw, spring clip (10) is the radial location shape, screw rod can make spring clip move axially in extrusion cup (20) in the precession or the back-out of described screw, causes the convergent-divergent of spring clip (10) convergent-divergent clearance groove (101).