CN111613434A

CN111613434A - Winding clamp for transformer

Info

Publication number: CN111613434A
Application number: CN202010373222.3A
Authority: CN
Inventors: 王梦文; 吕梅蕾; 吴飞
Original assignee: Quzhou University
Current assignee: Liugao Electric Power Technology Group Co.,Ltd.
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-09-01
Anticipated expiration: 2040-05-06
Also published as: CN111613434B

Abstract

The invention discloses a winding clamp for a transformer, and relates to the technical field of transformers. The folding chair comprises a base and a support, wherein the support is fixed on the upper surface of the base, a square-shaped frame is arranged on the upper surface of the base, and the bottom end of the base is in rotating fit with two folding frames; pull rings are fixed at both ends of the base; the clip frame comprises two U-shaped frames and two connecting rods for connecting the two U-shaped frames, and handles are fixed on two opposite outer side surfaces of each U-shaped frame; the inner top of the bracket is in sliding fit with two symmetrically arranged clamping plates which are connected through bolts; the bottom of the clamping plate is rotatably matched with two hooks which can be matched with the handle. According to the winding machine, the iron core of the winding is supported by the base, the horizontal position of the winding is improved by matching the base with the folding frame, and the winding is lifted by matching the support with the clip frame, so that the hook hooks the handle, the subsequent replacement or maintenance of winding materials is facilitated, and the maintenance difficulty of electricians and the like is reduced.

Description

Winding clamp for transformer

Technical Field

The invention belongs to the technical field of transformers, and particularly relates to a winding clamp for a transformer.

Background

The transformer winding refers to a circuit part of a transformer, is formed by winding a copper wire or an aluminum wire with high conductivity and is applied to a power system. The winding should have sufficient insulation strength, mechanical strength and heat resistance. Windings are generally divided into two types, layer and pie. The turns of the winding are sequentially arranged along the axial direction and are continuously wound, and the winding is called a layer winding. Each layer of the general layer type winding is like a cylinder, so the winding formed by two layers is called a double-layer cylinder type; the multilayer cylinder is formed by multiple layers. The winding is the main part of the transformer circuit and can be divided into a primary winding and a secondary winding. The primary winding is a resistor connected to a power source and capable of receiving energy from the power source; the secondary winding is a winding connected to the load, primarily to provide energy to the load.

The service life of the transformer is determined by the degree of ageing of the insulating material. Factors causing insulation aging are temperature, oxidation and moisture in the insulation material. Among these, temperature is the determining factor. The temperature limit of the transformer depends on the heat resistance of the insulating material. The temperature rise of the transformer refers to the difference between the temperature of the upper oil layer of the transformer and the temperature of the surrounding environment. After a transformer is used for a long time, an insulating material and an insulating material are inevitably aged, in the prior art, windings are all composed of the insulating material and a lead which are coated at intervals, and after the insulating material is aged, the windings need to be disassembled and the aged insulating material needs to be replaced; however, the winding is installed at the bottom in the transformer, and maintenance personnel need to enter the transformer or bend down to stretch the body into the transformer for maintenance; the space behind the winding is narrow after the winding is installed in the transformer, so that the operation of maintenance personnel is not utilized; moreover, the physical health of maintenance personnel who bend down for a long time is a huge challenge, and the waist of the maintenance personnel is easily damaged; both of these approaches are undesirable. Therefore, the position of the winding is required to be lifted, so that maintenance personnel can maintain the winding conveniently, and then the replacement of the insulating material in the winding needs to disassemble and disassemble the winding; the operation of maintenance personnel is convenient.

Disclosure of Invention

The invention aims to provide a winding clamp for a transformer, which solves the problem of inconvenient operation of maintenance personnel in the background technology.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a winding clamp for a transformer, which comprises a base and a support, wherein the support is fixed on the upper surface of the base, an installation hole is formed in the upper surface of the base, a clip-shaped frame is clamped in the installation hole, and the bottom end of the base is rotationally matched with two symmetrical folding frames; a pair of pull rings are fixed on both end faces of the base; the clip frame comprises two U-shaped frames and two connecting rods for connecting the two U-shaped frames, and handles are fixed on two outer side surfaces of each U-shaped frame; the inner top of the bracket is in sliding fit with two symmetrically arranged clamping plates which are connected through bolts; the bottom of splint normal running fit has two can with handle complex couple.

The bottom of an iron core of the winding is supported by the base, and the top of the iron core is clamped by two symmetrical clamping plates to fixedly install the winding; when the winding needs to be disassembled and replaced or maintained, the bolt is disassembled, so that the two clamping plates do not clamp the top of the iron core any more, and the two clamping plates slide outwards to be positioned on two sides of the winding respectively; the winding clamp body is lifted by hooking the pull ring through a self-provided rope with a hook, and the bottom of the base is supported through the folding frame; then, the bolts are disassembled, the two symmetrical clamping plates are moved to the opposite outer side surfaces of the square-shaped frame, the handle is manually clenched for lifting, so that the hook hooks the handle, and the subsequent winding material is convenient to replace or maintain and the like; through the assembled clip, local lifting of the winding can be performed, and maintenance of the local winding is facilitated.

Further, a support seat and two corner seats symmetrically arranged relative to the support seat are fixed on the upper surface of the base; the middle part of the bottom side of the iron core is supported by the support, and two corners of the bottom of the iron core are clamped by the two corner seats.

Furthermore, clamping seats are fixed at two end parts of the U-shaped frames, clamping rings are fixed at two ends of the connecting rod, and the two clamping rings of the connecting rod are respectively sleeved with one clamping seat on the two U-shaped frames; the two U-shaped frames can be used independently without connecting rods.

Further, the support includes the curb plate that two symmetries set up, two the spout has all been opened to the relative medial surface of curb plate, the both ends of splint all are fixed with the slider, the week side and the spout inner wall sliding fit of slider.

Furthermore, both ends of the side plate are fixed with vertical rods, and the four vertical rods are respectively positioned at four corners of the upper surface of the base.

Furthermore, anti-slip pads are fixed at both ends of the folding frame; the non-slip mat of folding leg one end is located the surface of folding leg and the contact of transformer shell inner wall, the non-slip mat of folding leg other end wraps the footing of folding leg.

Furthermore, two groups of symmetrically arranged rotating seats are fixed on the lower surface of the base, and the rotating seats are in rotating fit with one end of the folding frame; limiting baffles are fixed on the lower surface of the base and the outer side surfaces of the two groups of rotating seats opposite to each other; carry on spacingly through limit baffle, avoid the folding leg to arouse the base to turn on one's side etc..

The invention has the following beneficial effects:

according to the transformer, the base and the folding frame are arranged, so that the base can be lifted through the folding frame, the positions of the base and the winding in the transformer are raised, and maintenance of the winding in the transformer by maintenance personnel such as electricians is facilitated; through the arrangement of the clip frame, the winding body is lifted through the matching of the U-shaped frame and the connecting rod in the clip frame, so that the winding can be separated from the iron core, and the replacement and maintenance of the winding are facilitated; through the cooperation of support folding leg, the cooperation of support and time shape frame for the winding body can be outstanding in the transformer casing, reachs the transformer top, and the maintenance personnel such as electrician of being convenient for are to the maintenance of winding.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a winding jig for a transformer according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a side view of FIG. 1;

FIG. 5 is a schematic structural view of a base;

FIG. 6 is a cross-sectional view of the base;

FIG. 7 is a schematic structural view of a stent;

FIG. 8 is a cross-sectional view of a stent;

FIG. 9 is a schematic structural view of a clip;

FIG. 10 is a cross-sectional view of the return frame;

in the drawings, the components represented by the respective reference numerals are listed below:

1-base, 2-bracket, 3-mounting hole, 4-clip frame, 5-U-shaped frame, 6-connecting rod, 7-handle, 8-folding frame, 9-clamping plate, 10-bolt, 11-hook, 12-pull ring, 13-supporting seat, 14-angle seat, 15-clamping seat, 16-snap ring, 17-side plate, 18-sliding groove, 19-sliding block, 20-vertical rod, 21-rotary seat and 22-limit baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention is a winding fixture for a transformer, including a base 1 and a bracket 2, wherein the bracket 2 is fixed on the upper surface of the base 1, a mounting hole 3 is formed on the upper surface of the base 1, a rectangular frame 4 is clamped in the mounting hole 3, and the bottom end of the base 1 is rotatably matched with two symmetrical folding frames 8; a pair of pull rings 12 are fixed on both end faces of the base 1; the clip 4 comprises two U-shaped frames 5 and two connecting rods 6 connecting the two U-shaped frames 5, and handles 7 are fixed on two opposite outer sides of each U-shaped frame; the inner top of the bracket 2 is in sliding fit with two symmetrically arranged clamping plates 9, the opposite inner sides of the two clamping plates 9 are provided with cushion pads for protection, and the two clamping plates 9 are connected through bolts 10; the bottom of the clamping plate 9 is rotatably matched with two hooks 11 which can be matched with the handle 7.

Firstly, a winding is arranged on a base 1, the winding base is arranged in the middle of the base 1, and the top of an iron core is clamped by two symmetrical clamping plates 9 to clamp and fix the winding; when the winding needs to be lifted, the bolt 10 is disassembled, so that the two clamping plates 9 do not clamp the top of the iron core any more, the two clamping plates 9 slide outwards, and the two clamping plates 9 are located on two sides of the winding respectively; the pull ring 12 is hooked by a self-provided rope with a hook, and after the pull ring is lifted to a certain height, the horizontally-placed folding frame 8 is in a vertical state, so that the folding frame 8 supports the base 1; when the iron core needs to be removed, so that the winding body is maintained, the handle 7 is clenched through manpower, and the frame 4 is lifted, so that the winding can be separated from the iron core; then the handle 7 is hooked by the hook 11 to realize the support of the clip frame 4; the lifting of the position of the square frame 4 is realized, and the maintenance of the winding body is convenient.

Wherein, the upper surface of the base 1 is fixed with a supporting seat 13 and two angle seats 14 which are symmetrically arranged relative to the supporting seat 13; the support props the middle part of the bottom side of the iron core, and the two corner seats 14 clamp the two corners of the bottom of the iron core.

Clamping seats 15 are fixed at two ends of each U-shaped frame 5, clamping rings 16 are fixed at two ends of each connecting rod 6, and the two clamping rings 16 of each connecting rod 6 are respectively sleeved with one clamping seat 15 on each U-shaped frame 5; the two U-shaped brackets 5 can likewise be used individually, with the links 6 removed.

The support 2 comprises two side plates 17 which are symmetrically arranged, sliding grooves 18 are formed in the opposite inner side surfaces of the two side plates 17, sliding blocks 19 are fixed at the two ends of the clamping plate 9, and the peripheral side surfaces of the sliding blocks 19 are in sliding fit with the inner walls of the sliding grooves 18.

Wherein, both ends of the side plate 17 are fixed with vertical rods 20, and the four vertical rods 20 are respectively positioned at four corners of the upper surface of the base 1.

Wherein, both ends of the folding frame 8 are fixed with anti-skid pads; the non-slip mat of 8 one ends of folding leg is located the surface of 8 and the contact of transformer shell inner wall of folding leg, and the non-slip mat of 8 other ends of folding leg wraps the footing of folding leg 8.

Wherein, the lower surface of the base 1 is fixed with two groups of symmetrically arranged rotating seats 21, and the rotating seats 21 are in rotating fit with one end of the folding frame 8; limiting baffles 22 are fixed on the lower surface of the base 1 and the outer side surfaces of the two groups of rotating seats 21 opposite to each other; the limit is performed by the limit baffle 22, so that the folding frame 8 is prevented from causing the base 1 to turn on one side and the like.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a winding anchor clamps for transformer, includes base (1) and support (2), base (1) upper surface is fixed with support (2), its characterized in that:

the upper surface of the base (1) is provided with a mounting hole (3), a clip-shaped frame (4) is connected in the mounting hole (3), and the bottom end of the base (1) is rotationally matched with two symmetrical folding frames (8); a pair of pull rings (12) are fixed on both end faces of the base (1);

the clip frame (4) comprises two U-shaped frames (5) and two connecting rods (6) connecting the two U-shaped frames (5), and handles (7) are fixed on two opposite side surfaces of each U-shaped frame;

the inner top of the bracket (2) is in sliding fit with two symmetrically arranged clamping plates (9), and the two clamping plates (9) are connected through bolts (10); the bottom of the clamping plate (9) is rotatably matched with two hooks (11) which can be matched with the handle (7).

2. A winding clamp for a transformer according to claim 1, characterized in that the upper surface of the base (1) fixes a support base (13) and two corner bases (14) symmetrically arranged with respect to the support base (13).

3. The winding clamp for the transformer according to claim 1, wherein clamping seats (15) are fixed at two ends of the U-shaped frame (5), clamping rings (16) are fixed at two ends of the connecting rod (6), and the two clamping rings (16) of the connecting rod (6) are respectively sleeved with one clamping seat (15) on the two U-shaped frames (5).

4. The winding clamp for the transformer according to claim 1, wherein the bracket (2) comprises two side plates (17) which are symmetrically arranged, sliding grooves (18) are formed in opposite inner side faces of the two side plates (17), sliding blocks (19) are fixed to two ends of the clamping plate (9), and peripheral side faces of the sliding blocks (19) are in sliding fit with inner walls of the sliding grooves (18).

5. A winding clamp for a transformer according to claim 4, characterized in that two ends of the side plate (17) are fixed with vertical rods (20), and four vertical rods (20) are respectively positioned at four corners of the upper surface of the base (1).

6. A winding clamp for transformers according to claim 1, characterized in that anti-slip pads are fixed to both ends of the folding leg (8).

7. The winding clamp for the transformer according to claim 1, characterized in that two sets of symmetrically arranged rotating seats (21) are fixed on the lower surface of the base (1), and the rotating seats (21) are rotatably matched with one end of the folding frame (8); and limiting baffles (22) are fixed on the lower surface of the base (1) and positioned on the opposite outer side surfaces of the two groups of rotating seats (21).