CN104134947B - Assembly structure of insulator and external flange - Google Patents

Abstract

The invention relates to an assembly structure of an insulator and an outer flange. The assembly structure includes an insulator and an outer flange. The outer flange is sleeved on the periphery of the insulator. At least Three leaf springs evenly distributed along the circumferential direction are used to provide radial pressing force to the outer peripheral surface of the insulator so that the insulator is tightly fixed at the center of the outer flange. The leaf spring is a bow-shaped structure. The flange supports the convex part and the two supporting parts. The inner peripheral surface of the outer flange or the outer peripheral surface of the insulator is provided with a slot for positioning the leaf spring. The slot has two oppositely arranged and two supporting parts. The groove wall is engaged in the circumferential direction or the axial direction, and the locking groove also has a groove bottom that supports and cooperates with the two supporting parts in the radial direction. The invention has the advantages of simple assembly operation, simple assembly structure and reliable assembly, not only improves the work efficiency, but also increases the reliability of the structure.

Description

Assembly structure of insulator and outer flange

technical field

The invention relates to an assembly structure of an insulator and an outer flange.

Background technique

The assembly structure of the insulator and the outer flange plays a vital role in the reliable operation of the gas-insulated metal-enclosed switchgear. In the prior art, the insulator has a disc-shaped structure, and the outer flange has an annular structure. There is an annular gap between the outer peripheral surface of the insulator and the inner peripheral surface of the outer flange, and the gap is equipped with uniformly distributed along the circumferential direction. Three springs, the springs extend in the radial direction, and the insulator is fixed at the center of the outer flange under the compression force of the springs. However, when the insulator is assembled with the outer flange, at least three people are required to cooperate to assemble the three springs synchronously. It is difficult to assemble into the above-mentioned gap, and at the same time, the spring is easily squeezed during the process of fitting into the above-mentioned gap. Due to the lack of restrictive positioning of the spring, the spring will deflect in its self-extending direction and twist and deform, resulting in uneven gap resulting in assembly failure.

Contents of the invention

The purpose of the present invention is to provide an assembly structure of an insulator and an outer flange, so as to solve the problem of difficult assembly in the prior art.

In order to achieve the above object, the present invention adopts the following technical scheme: the assembly structure of the insulator and the outer flange includes a concentrically arranged disc-shaped insulator and a ring-shaped outer flange, and the outer flange is sleeved on the periphery of the insulator. There is a gap between the inner peripheral surface of the flange and the outer peripheral surface of the insulator, and at least three uniformly distributed along the circumferential direction are installed between the inner peripheral surface of the outer flange and the outer peripheral surface of the insulator. The surface provides a radial pressing force so that the insulator can be tightly fixed to the leaf spring located in the center of the outer flange. The leaf spring has a bow-shaped structure. The leaf spring has a convex part and two supporting parts that are respectively matched with the insulator and the outer flange. The inner peripheral surface of the outer flange or the outer peripheral surface of the insulator is provided with a card slot for positioning and clamping the leaf spring, and the card slot has two oppositely arranged grooves that cooperate with the two supporting parts in the circumferential direction or the axial direction The card slot also has a slot bottom that supports and cooperates with the two supporting parts in the radial direction.

There are four leaf springs, and the leaf springs are composed of two side plates distributed in a V shape. The ends of the side plates are integrally provided with flat plates extending in the horizontal direction, and the slots are arranged on the inner peripheral surface of the outer flange. The opening end of the leaf spring faces the inner peripheral surface of the outer flange, and the groove wall of the card groove and the supporting part block and cooperate in the circumferential direction. The supporting part is a flat plate, and the end of the flat plate and the groove wall block and cooperate in the circumferential direction. The bottom surface of the flat plate supports and cooperates with the groove bottom in the radial direction.

Beneficial effects of the present invention: the present invention uses the leaf spring to securely fix the insulator at the center of the outer flange. During the assembly process, after the leaf spring is compressed, the distance between the two supporting parts will increase, and the supporting part of the leaf spring will It cooperates with the groove wall of the card groove in the circumferential direction or axial direction, so the leaf spring will not appear to be squeezed and deflected in the radial direction, which will cause assembly failure. Each leaf spring does not need to be assembled at the same time, and can be Assembled one by one, one person can complete the assembly process. The invention has the advantages of simple assembly operation, simple assembly structure and reliable assembly. Therefore, the present invention not only improves the work efficiency, but also increases the reliability of the structure.

Description of drawings

Fig. 1 is the structural representation of the embodiment 1 of the assembly structure of the insulator and the outer flange of the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a schematic structural view of the outer flange in Fig. 1;

Fig. 4 is a schematic structural diagram of the leaf spring in Fig. 1 .

detailed description

Embodiment 1 of the assembly structure of the insulator and the outer flange of the present invention is shown in Figures 1-4: the assembly structure of the insulator and the outer flange includes a concentrically arranged disc-shaped insulator 1 and a ring-shaped outer method Flange 2, the outer flange 2 is set on the periphery of the insulator 1, there is a gap between the inner peripheral surface of the outer flange 2 and the outer peripheral surface of the insulator 1, and the inner peripheral surface of the outer flange 2 and the outer peripheral surface of the insulator 1 are tight The fixed assembly is equipped with four leaf springs 3 evenly distributed along the circumferential direction, which are used to provide radial pressing force to the outer peripheral surface of the insulator 1 so that the insulator 1 is tightly fixed at the center of the outer flange 2. The leaf spring 3 is a bow-shaped structure, and the plate The spring 3 has a convex part and two supporting parts that are respectively matched with the insulator and the outer flange. In this embodiment, the inner peripheral surface of the outer flange 2 is provided with a slot 4 for positioning the leaf spring 3. The slot 4 has a slot wall that engages with the two supporting parts in the circumferential direction. The slot 4 also has a slot bottom that supports and fits with the two supporting parts in the radial direction. The leaf spring 3 is composed of two side plates distributed in a V shape. The ends of the side plates are integrally provided with a flat plate extending in the horizontal direction. The open end of the leaf spring 3 faces the inner peripheral surface of the outer flange 2. The groove wall extends along the axial direction of the outer flange and runs through the outer flange. The supporting part is a flat plate.

The assembly process of the above-mentioned embodiment 1: first put the outer flange on the periphery of the insulator, and then put the four leaf springs into the corresponding slots, and the leaf springs are compressed to generate a radial pressing force, due to the four The leaf springs are evenly distributed along the circumference, so the insulator can be firmly fixed in the center of the outer flange.

In the above-mentioned embodiment 1, the insulator is firmly fixed at the center of the outer flange by using the leaf spring. During the assembly process, after the leaf spring is compressed, the distance between the two supporting parts will increase, and the supporting part of the leaf spring will be in contact with the clip. The groove wall of the groove is blocked and matched in the circumferential direction, and the support part of the leaf spring and the groove wall of the card groove will generate relatively large relative friction in the axial direction without relative movement in the axial direction, so the leaf spring can only move along the radial direction. deformation in the radial direction, and there will be no phenomenon of assembly failure due to deflection in the radial direction due to being squeezed. Each leaf spring does not need to be assembled at the same time, but can be assembled one by one. One person can complete the assembly process. The above assembly process is simple and convenient. The assembly structure is simple and the assembly is reliable. Therefore, the present invention not only improves the work efficiency, but also increases the reliability of the structure.

In other embodiments of the present invention, there may be three or more leaf springs.

In other embodiments of the present invention, the locking groove may also have two oppositely disposed groove walls that axially block and cooperate with the two supporting parts.

In other embodiments of the present invention, the slot can also be arranged on the outer peripheral surface of the insulator, the two supporting parts of the slot cooperate with the support of the insulator, and the convex part of the slot cooperates with the support of the outer flange.

Claims (2)

1. The assembly structure of the insulator and the outer flange, including a concentric disc-shaped insulator and a ring-shaped outer flange, the outer flange is set on the periphery of the insulator, the inner peripheral surface of the outer flange and the outer peripheral surface of the insulator There is a gap between them, and it is characterized in that: there are at least three uniformly distributed along the circumferential direction between the inner peripheral surface of the outer flange and the outer peripheral surface of the insulator, which are used to provide radial compression to the outer peripheral surface of the insulator. force to make the insulator tightly fixed to the leaf spring located in the center of the outer flange. The leaf spring has a bow-shaped structure. The leaf spring has a convex part that cooperates with one of the supports of the insulator or the outer flange and two support parts that cooperate with the other support. The inner peripheral surface of the outer flange or the outer peripheral surface of the insulator is provided with a slot for positioning the clamping leaf spring, and the slot has two oppositely arranged and matched with the two supporting parts in the circumferential direction or axial direction. The slot wall and the card slot also have a slot bottom that supports and cooperates with the two supporting parts in the radial direction. 2. The assembly structure of the insulator and the outer flange according to claim 1, characterized in that: there are four leaf springs, the leaf springs are composed of two side plates distributed in a V shape, and the ends of the side plates are integrated There is a flat plate extending in the horizontal direction, the card slot is arranged on the inner peripheral surface of the outer flange, the opening end of the leaf spring faces the inner peripheral surface of the outer flange, the groove wall of the card slot and the supporting part are blocked and matched in the circumferential direction , the support part is a flat plate, the end of the flat plate is in circumferential blocking fit with the groove wall, and the bottom surface of the flat plate is in radial support fit with the groove bottom.