CN214203539U

CN214203539U - Three-station isolating contact piece dismounting device

Info

Publication number: CN214203539U
Application number: CN202022337487.6U
Authority: CN
Inventors: 裴军; 王广先; 袁松强; 刘震; 赵瑞影; 吴昊
Original assignee: Chint Electric Co Ltd
Current assignee: Chint Electric Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-09-14
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a three-station isolating contact piece device, which comprises an isolating contact piece and a pole terminal leading-out end, wherein the isolating contact piece comprises a movable end and a fixed end, and the fixed end of the isolating contact piece is rotationally connected with the pole terminal leading-out end through a shaft pin; the moving end of the isolation contact piece is contacted with the closing contact when closing, and the moving end of the isolation contact piece comprises a disc spring for providing contact pressure when closing; the shielding device is characterized by further comprising a shielding ring, wherein the shaft pin penetrates through the fixed end of the isolation contact piece, the pole outgoing line end and the disc spring, is connected with the shielding ring and is fixed through a cylindrical limiting pin, and the shielding ring is arranged on the outer sides of the disc springs on the two sides. The utility model discloses an isolation contact adopts the dish spring compression fixed, through the pivot length of regulation and fixed dish spring arrangement mode, adopts the spacing hole of injecing to install, and the installation accuracy is high, and locking effectual, electric field distribution is even, and isolation contact's dismouting adopts special dismouting anchor clamps, and technology, quality are controllable, have reduced the maloperation that the human factor caused.

Description

Three-station isolating contact piece dismounting device

Technical Field

The utility model relates to a three station isolation contact dismouting devices belongs to electrical equipment technical field.

Background

In the prior art, three-station isolation contact pieces are fixedly connected by adopting a clamping plate and springs, two groups of isolation contact pieces are symmetrically arranged, and contact force and contact resistance between conductors are ensured by stretching of a middle spring or compressing of springs at two ends. Spring occupation space is great and anti fatigue life is low, and traditional isolation contact connecting pin adopts ordinary button head bolt, and the bolt passes the both ends of keeping apart the contact, and the other end passes through the nut to be fixed, and nut screw in degree of depth is wayward and has the risk that the nut pine takes off and drops.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: how to design a device for detaching an isolating contact piece of a three-position isolating switch.

In order to solve the technical problem, the technical scheme of the utility model is to provide a three-station isolating contact piece device, which comprises an isolating contact piece and a pole leading-out end, wherein the isolating contact piece comprises a movable end and a fixed end, and the fixed end of the isolating contact piece is rotationally connected with the pole leading-out end through a shaft pin; the moving end of the isolation contact piece is contacted with the closing contact when closing, and the moving end of the isolation contact piece comprises a disc spring for providing contact pressure when closing; the shielding device is characterized by further comprising a shielding ring, wherein the shaft pin penetrates through the fixed end of the isolation contact piece, the pole outgoing line end and the disc spring, is connected with the shielding ring and is fixed through a cylindrical limiting pin, and the shielding ring is arranged on the outer sides of the disc springs on the two sides.

Preferably, the isolation contact pieces are symmetrically arranged by adopting two groups of isolation contact pieces, and the middle part of each group of isolation contact pieces is provided with a hole groove.

Preferably, one end of the shaft pin is a round head, and the other end of the shaft pin is provided with a through hole connected with the cylindrical limit pin.

Preferably, the shielding ring is provided with a groove capable of limiting the disc spring and the cylindrical limiting pin.

Preferably, the shielding ring is an electromagnetic shielding ring.

Preferably, the shielding ring is an aluminum ring.

Preferably, the disc spring adopts an even number of pieces reverse stacking method.

Preferably, the isolation contact on be equipped with the dismouting anchor clamps, the dismouting anchor clamps include two splint, wherein be equipped with the circular head counter bore that is used for the location pivot on one splint, another splint are equipped with the rectangle through-hole of dismouting cylinder spacer pin, the dismouting anchor clamps still be provided with the bolt and have the through-hole that supplies the bolt to link up two splint.

Preferably, the dismounting and mounting clamp can be used for dismounting and mounting the movable end and the fixed end of the isolation contact piece.

Preferably, the disassembly and assembly jig can be disassembled from the three-station isolating contact piece device body after the disassembly and assembly step is completed.

The utility model discloses an isolation contact adopts the compression of dish spring fixed, through the pivot length of regulation and fixed dish spring arrangement mode, adopts the spacing hole of injecing to install, and the installation accuracy is high, and locking effectual, electric field distribution is even. The isolating contact piece is disassembled and assembled by adopting a special disassembling and assembling clamp, so that the process and the quality are controllable, and the error operation caused by human factors is reduced.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a side view of the present invention;

fig. 5 is a top view of the present invention;

FIG. 6 is a schematic structural view of the components of the present invention;

fig. 7 is an actual operation state diagram of the present invention.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 7, a three-station isolating contact piece dismounting device is characterized by comprising an isolating contact piece 1 and a pole terminal outlet 2, wherein the isolating contact piece 1 comprises a movable end and a fixed end, and the fixed end of the isolating contact piece 1 is fixedly connected with the pole terminal outlet 2 through a shaft pin 3 and a disc spring 4; the movable end of the isolation contact piece 1 is provided with a dismounting clamp 8 and a shaft sleeve 7, the shaft sleeve 7 is arranged between the movable ends of the two sets of isolation contact pieces 1, and the dismounting clamp 8 is arranged on the outer side of the movable end of the isolation contact piece 1 and fixed through a shaft pin 3.

The isolating contact piece 1 comprises a fixed end and a movable end, and is symmetrically installed by adopting two groups of contact pieces, wherein the fixed end is installed at a terminal post outgoing line end 2 by utilizing a shaft pin 3 and a disc spring 4 and rotates along the center of the terminal post outgoing line end 2, after the fixed end of the isolating contact piece 1 is connected with the terminal post outgoing line end 2, the disc spring 4 reaches a specified compression amount, and the contact force and the contact resistance between conductors meet the design requirements; the movable end of the isolation contact piece 1 is in an isolation state, the disc spring 4 has a certain compression amount to guarantee a small initial pressure, when the isolation contact piece 1 rotates to a specified switching-on position, the movable end is in contact with a switching-on contact, 2, the gap between the two sets of isolation contact pieces 1 is enlarged, the disc spring 4 is compressed again, the disc spring 4 reaches the specified compression amount after the disc spring is in place, and the specified contact force and the specified contact resistance are met. The round pin is characterized in that one end of the shaft pin 3 is a round head, the other end of the shaft pin is provided with a through hole and used for installing the cylindrical limiting pin 6, the round angle design can ensure the uniformity of an electric field, the disc spring 4 adopts an even number of pieces reverse stacking method to ensure the sufficient disc spring pressure and compression stroke of the outgoing line end of the isolating contact piece and the pole, and the requirements of conductor electrodynamic force and contact resistance are met. The shielding ring 5 is an aluminum ring, is used for limiting a disc spring as a disc spring retainer ring on one hand, and is used for shielding a sharp corner at the top of a shaft pin as an electric field shielding ring on the other hand, so that an electric field is optimized, and the cylindrical limiting pin 6 and the disc spring can be limited in a groove by the groove design of the shielding ring 5, so that elements are prevented from falling off.

The dismounting and mounting fixture comprises two clamping plates, wherein one clamping plate is provided with a through hole for positioning the round head of the shaft pin, and the other clamping plate is provided with a rectangular through hole for facilitating dismounting of the pin column.

Installation and the use of dismouting anchor clamps 8 of cylinder spacer pin 6: a clamping plate is arranged on one side of the isolating contact piece 1, and a middle counter bore is clamped in the round head of the shaft pin 3; the other clamping plate is arranged on the outer side of the other isolating contact piece 1, so that the inner side of the clamping plate is tightly attached to the side of the groove of the shielding ring 5, and the other end of the shaft pin 3 penetrates through the rectangular through hole of the clamping plate. The M8 long bolt sequentially penetrates through two side holes of the clamping plate, the M8 nut is installed at the other end of the clamping plate, the distance between the clamping plates is reduced by screwing the nut, the disc spring 4 is compressed, the through hole at the other end of the shaft pin 3 is leaked, the cylindrical limiting pin 6 penetrates into the through hole, the M8 nut is loosened, the dismounting clamp 8 is dismounted, the cylindrical limiting pin 6 is installed, and the dismounting of the cylindrical limiting pin 6 is also carried out by using the method.

Claims

1. A three-station isolating contact piece device comprises an isolating contact piece (1) and a pole outgoing line end (2), wherein the isolating contact piece (1) comprises a movable end and a fixed end, and the fixed end of the isolating contact piece (1) is rotatably connected with the pole outgoing line end (2) through a shaft pin (3); the moving end of the isolation contact piece (1) is contacted with a closing contact when closing, and the moving end of the isolation contact piece (1) comprises a disc spring for providing contact pressure when closing; the novel insulation board is characterized by further comprising a shielding ring (5), wherein the shaft pin (3) penetrates through the fixed end of the isolation contact piece (1), the pole outgoing line end (2) and the disc spring (4), is connected with the shielding ring (5) and is fixed through a cylindrical limiting pin (6), and the shielding ring (5) is arranged on the outer sides of the disc springs (4) on the two sides.

2. A three-station isolated contact device as claimed in claim 1, wherein said isolated contacts (1) are arranged symmetrically with two sets of isolated contacts (1), each set of isolated contacts (1) having a hole in the middle.

3. A three-station isolated wafer device as claimed in claim 1, wherein one end of the pin (3) is rounded and the other end is provided with a through hole for connection to a cylindrical limit pin (6).

4. A three-station isolated contact blade arrangement as claimed in claim 1, wherein the shield ring (5) is provided with a recess which limits the disc spring (4) and the cylindrical limit pin (6).

5. A three-position isolated contact blade arrangement as claimed in claim 4, wherein said shielding ring (5) is an electromagnetic shielding ring.

6. A three-position isolated contact wafer arrangement as claimed in claim 5, wherein said shield ring (5) is an aluminum ring.

7. A three-position isolating contact blade unit as in claim 1, wherein said disc spring (4) is formed by a reverse stacking of an even number of blades.

8. A three-station isolating contact piece device as claimed in any one of claims 1 to 7, wherein said isolating contact piece (1) is provided with a dismounting fixture (8), said dismounting fixture (8) comprises two clamping plates, one of which is provided with a round-head counter bore for positioning the pin (3), the other clamping plate is provided with a rectangular through hole for dismounting the cylindrical limit pin (6), said dismounting fixture (8) is further provided with a bolt and a through hole for the bolt to pass through the two clamping plates.