CN212783011U

CN212783011U - Transformer iron core fixing mechanism

Info

Publication number: CN212783011U
Application number: CN202022149493.9U
Authority: CN
Inventors: 柏广洲; 孙贤洲; 丁铮
Original assignee: Qingdao CCS Electric Corp
Current assignee: Qingdao CCS Electric Corp
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-03-23
Anticipated expiration: 2030-09-25

Abstract

A transformer iron core fixing mechanism comprises a clamping assembly and a pulling plate; the clamping assembly comprises a clamping piece and a bolt; the clamping pieces comprise a first clamping piece positioned on one side of the iron core and a second clamping piece positioned on the other side of the iron core, and insulating layers are laid on the surfaces of the two sides of the iron core; the clamping pieces are attached to the insulating layer on the corresponding side of the iron core through the arranged clamping plates; the pulling plate is attached to the insulating layer on one side of the iron core, and the end parts of the two ends of the pulling plate are provided with assembling parts; the assembly part is located in an assembly groove formed in the clamping plate in the corresponding clamping assembly, and the width of the assembly part is larger than the width of a notch of the assembly groove. The utility model discloses a transformer core fixed establishment, the tip embedding of arm-tie is in the splint of folder, and the notch width through the assembly groove makes the arm-tie can't deviate from along length direction, and two centre gripping subassemblies can be taut with the arm-tie, realize the fixed of arm-tie and folder, need not fastener carry out fixed connection between the two, also need not process the round pin axle, and the assembly is easy, and processing is convenient, low in manufacturing cost and efficient.

Description

Transformer iron core fixing mechanism

Technical Field

The utility model belongs to the electrical equipment field especially relates to a transformer core fixed establishment.

Background

The transformer is a main device in frequency converter equipment, and is provided with an iron core, wherein the iron core is formed by laminating a plurality of iron plates and is clamped and fixed through a clamping piece. In order to enable the clamping pieces to form a frame structure, the firmness of the iron core is improved, different clamping pieces can be supported mutually when the iron core is hoisted, and the clamping pieces are connected through the pulling plate.

At present, the pulling plate and the clamping piece are arranged in a stacking mode, namely, the pulling plate is attached to an iron core, the clamping piece is pressed on the pulling plate, and the pulling plate is fixedly connected with the clamping piece through a bolt or a pin shaft. Because the pulling plate and the clamping piece are required to be insulated from the iron core, the surface of the iron core is pasted with an insulating layer, the pulling plate is pressed on the insulating layer, and insulating filler is filled between the clamping piece and the iron core.

The arrangement mode of the pulling plate and the clamping piece enables the clamping piece and the iron core to have larger interval, the thickness required by the insulating layer is increased, the insulating layer is required to be processed independently according to the width and the thickness of the pulling plate, and the manufacturing cost is increased. The pulling plate and the clamping piece are connected and fixed through the bolts or the pin shafts, so that the processing amount and the mounting steps of the structure are increased, and the production efficiency is lower. The insulating filler is easy to age and deform due to drying and heating, the thickness of the insulating filler is thinned, the insulating filler is separated from the surfaces of the clamping piece and the iron core and falls off from the space between the clamping piece and the iron core, and the insulation fails. Insulating treatment is carried out through the insulating layer and the insulating filler, the processing amount of the structure is large, and the procedures are complicated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the problem that manufacturing cost is high, the handling capacity is big, insulating easy inefficacy to the arrangement mode of the current arm-tie of electric capacity and folder, provides a transformer core fixed establishment convenient to manufacturing and easily keep insulating state.

In order to achieve the above object, the utility model discloses a technical scheme be:

a transformer iron core fixing mechanism is used for fixing an iron core and comprises a clamping assembly and a pulling plate;

the clamping assembly comprises a clamping piece and a bolt;

the clamping pieces comprise a first clamping piece positioned on one side of the iron core and a second clamping piece positioned on the other side of the iron core,

insulating layers made of insulating materials are paved on the surfaces of the two sides of the iron core;

the clamping pieces are attached to the insulating layer on the corresponding side of the iron core through the arranged clamping plates;

the bolt is arranged between the first clamping piece and the second clamping piece and used for clamping the iron core by the first clamping piece and the second clamping piece;

the two clamping assemblies are arranged at intervals, and the pulling plate is positioned between the clamping assemblies;

the pull plate is attached to the insulating layer on one side of the iron core, and the end parts of the two ends of the pull plate are provided with assembling parts;

the assembly parts are all located in assembly grooves formed in the clamping plates in the corresponding clamping assemblies, and the width of each assembly part is larger than the width of a notch of each assembly groove.

Preferably, a limiting plate is welded on the surface of one side, away from the iron core, of the clamping plate, the limiting plate spans over the assembling portion of the pulling plate, and two ends of the limiting plate are located on two sides of the assembling groove respectively.

Preferably, the thickness of the fitting part is the same as that of the clamping plate, and the limit plate is pressed on the fitting part.

Preferably, the fitting groove is matched with the fitting portion.

Preferably, the assembly groove is a dovetail groove or a T-shaped groove.

Preferably, the clip is a channel steel.

Preferably, the insulating layers on the two sides of the iron core are both adhered with pulling plates.

Preferably, a plurality of pulling plates attached to the insulating layer on the same side of the iron core are arranged at intervals.

Preferably, the end of each bolt passes through the corresponding clamping piece and then is provided with a nut.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model discloses a transformer core fixed establishment, the tip embedding of arm-tie is in the splint of folder, and the notch width through the assembly groove makes the arm-tie can't deviate from along length direction, and two centre gripping subassemblies can be taut with the arm-tie, realize the fixed of arm-tie and folder, need not fastener carry out fixed connection between the two, also need not process the round pin axle, and the assembly is easy, and processing is convenient, low in manufacturing cost and efficient.

The embedded installation of arm-tie tip makes the inboard surface parallel and level of inboard surface of arm-tie and folder, and complete insulating layer can be pasted on the iron core surface, and the insulating layer can be carried out abundant pressure simultaneously by arm-tie and folder and hold, is difficult to drop, remains stable, prevents insulating inefficacy to the insulating layer is easily assembled, and the process is simple, has reduced the processingquantity of structure.

The limiting plate is welded on the clamping piece, so that the end part of the pulling plate can be prevented from being separated from one side of the assembling groove, and the connecting firmness of the pulling plate and the clamping piece is improved. The thickness of the limiting plate is the same as that of the clamping plate, so that the limiting plate presses and holds the pulling plate, the pulling plate is guaranteed to be pressed and held on the insulating layer, and the insulating layer is kept stable.

The assembly groove is matched with the assembly part, so that the pulling plate is prevented from being moved relative to the clamping piece, the pulling plate is tensioned more easily, and the firmness of the whole structure is improved.

The iron core both sides all have the arm-tie, and each side arm-tie sets up a plurality ofly, can make both sides between two centre gripping subassemblies can both obtain mutual support, and the frame construction of formation is more firm and stable.

Drawings

Fig. 1 is a side view structural diagram of the transformer core fixing mechanism of the present invention;

fig. 2 is a top view structural diagram of the transformer core fixing mechanism of the present invention;

fig. 3 is a front view structural diagram of the transformer core fixing mechanism of the present invention;

in the above figures: 1. an iron core; 2. pulling a plate; 21. an assembling portion; 3. a clamp; 31. a first clamp member; 32. a second clamp; 33. a splint; 34. assembling a groove; 4. a bolt; 5. an insulating layer; 6. a limiting plate; 7. and a nut.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, the utility model provides a transformer core fixing mechanism for fix the iron core 1 that is formed by laminating a plurality of iron plates in the transformer.

The fixing mechanism comprises a clamping assembly and a pulling plate 2.

The clamping assembly comprises a clamp 3 and a bolt 4.

The clip 3 includes a first clip member 31 at one side of the core 1 and a second clip member 32 at the other side of the core 1.

Insulating layers 5 made of insulating materials are laid on the surfaces of the two sides of the iron core 1.

The clamping elements 3 are each attached to the insulating layer 5 on the respective side of the core 1 by means of a clamping plate 33.

The bolt 4 is installed between the first clamping piece 31 and the second clamping piece 32, and through the connection of the bolt 4, the first clamping piece 31 and the second clamping piece 32 can be close to each other, so that the iron core 1 between the first clamping piece 31 and the second clamping piece 32 is clamped and fixed, and each clamping piece 3 is pressed on the insulating layer 5 on the corresponding side.

Two clamping components are arranged at intervals, and a pulling plate 2 is arranged between the two clamping components.

The pulling plate 2 is attached to the insulating layer 5, and the end portions of both ends are provided with the fitting portions 21.

The clamping plates 33 of the clamping pieces 3 in the two clamping assemblies are respectively provided with an assembling groove 34, and the assembling grooves 34 on the two clamping assemblies are oppositely arranged.

The fitting portion 21 of one end of the pulling plate 2 is fitted into the fitting groove 34 of the clamping plate 33 in one clamping assembly, and the fitting portion of the other end is fitted into the fitting groove 34 of the clamping plate 33 in the other clamping assembly.

The width of the fitting part 21 at the end of the pulling plate 2 is larger than the width of the notch of the fitting groove 34, and the fitting groove 34 can adopt a dovetail groove or a T-shaped groove.

During the assembly, increase the interval between the centre gripping subassembly, the length direction that the assembly portion 21 of arm-tie 2 can't be followed to the arm-tie 2 is deviate from by the notch of assembly groove 34 to firmly paste and lean on the inner wall that corresponds assembly groove 34, realize the fixed connection between arm-tie 2 and the folder 3, fixed connection between the two does not need the mounting, and the assembly is easy, and processing is convenient.

After the assembly portion 21 of arm-tie 2 was embedded into corresponding assembly groove 34, the pressure was held on insulating layer 5, made 2 inboard surfaces of arm-tie and 3 inboard surface parallel and level of folder, insulating layer 5 can adopt a complete structure to paste and cover on iron core 1, and insulating layer 5 can be comparatively easy assemble on iron core 1 to receive the pressure of arm-tie 2 and folder 1 simultaneously and hold, can remain firm, be difficult to drop.

In order to prevent the fitting portion 21 of the pulling plate 2 from coming out of the side of the fitting groove 34, a stopper plate 6 is welded to a surface of the clamping plate 33 on a side away from the core 1.

Both ends of the limit plate 6 are fixed to both sides of the assembly groove 34, so that the limit plate 6 straddles the assembly portion 21 of the pull plate 2 in the assembly groove 34, and if the assembly portion 21 moves outward in the assembly groove 34, the outer side, i.e., the side away from the iron core 1, abuts against the limit plate 6 and cannot be separated from the assembly groove 34.

In order to keep the fitting portion 21 pressed against the insulating layer 5 while preventing the fitting portion 21 from coming off, the fitting portion 21 has the same thickness as the clip plate 33, and the stopper plate 6 is pressed against the fitting portion 21.

In order to make the connection between the pulling plate 2 and the clamping piece 3 more stable, the assembling groove 34 is matched with the assembling part 21, the assembling part 21 can be completely embedded into the assembling groove 34, the assembling groove 34 can be fully limited to move in the length direction of the pulling plate 2, and the connecting strength is higher after the pulling plate 2 is connected with the clamping piece 3.

For the convenience of processing, the clip 3 may be made of a channel steel, and the back surface of the channel steel is used as the clip 33.

Two centre gripping subassemblies are connected to arm-tie 2, and when hooking centre gripping subassembly and hoist, two centre gripping subassemblies can support each other through arm-tie 2.

In order to support both sides of the clamping assembly, pull plates 2 are arranged on both sides of the iron core 1, and the pull plates 2 are attached to the insulating layer 5 on the corresponding side.

In order to make the frame structure formed by the clamping assembly and the pulling plates 2 more stable, each side of the iron core 1 is provided with a plurality of pulling plates 2, and the pulling plates 2 on the same side are arranged at intervals.

In order to tighten the two clamping pieces 3 in the same clamping assembly, the end of each bolt 4 is passed through the corresponding clamping piece 3 and then a nut 7 is mounted.

Through the nut 7 of screwing, two nuts 7 on same bolt 4 are all pressed and are held on the folder 3 that corresponds to make folder 3 all press and hold iron core 1, realize two folders 3 to the centre gripping of iron core 1.

In order to ensure stable clamping, two bolts 4 are arranged in the clamping assembly and are respectively positioned at two sides of the iron core 1.

The two bolts 4 and the two clamping pieces 3 enclose the iron core 1, and the iron core 1 is difficult to be separated and keeps stable.

Claims

1. A transformer iron core fixing mechanism is used for fixing an iron core (1) and is characterized by comprising a clamping assembly and a pulling plate (2);

the clamping assembly comprises a clamping piece (3) and a bolt (4);

the clamping piece (3) comprises a first clamping piece (31) positioned on one side of the iron core (1) and a second clamping piece (32) positioned on the other side of the iron core (1),

insulating layers (5) made of insulating materials are paved on the surfaces of the two sides of the iron core (1);

the clamping pieces (3) are attached to the insulating layer (5) on the corresponding side of the iron core (1) through the arranged clamping plates (33);

the bolt (4) is arranged between the first clamping piece (31) and the second clamping piece (32) and used for clamping the iron core (1) by the first clamping piece (31) and the second clamping piece (32);

the two clamping assemblies are arranged at intervals, and the pulling plate (2) is positioned between the clamping assemblies;

the pulling plate (2) is attached to the insulating layer (5), and the end parts of the two ends are provided with assembling parts (21);

the assembling portions (21) are located in assembling grooves (34) formed in the clamping plates (33) of the corresponding clamping assemblies, and the width of each assembling portion (21) is larger than the width of a notch of each assembling groove (34).

2. The transformer core fixing mechanism according to claim 1, wherein a limiting plate (6) is welded on a surface of one side of the clamping plate (33) far away from the core (1), the limiting plate (6) spans the assembling portion (21) of the pulling plate (2), and two ends of the limiting plate are respectively located at two sides of the assembling groove (34).

3. The transformer core fixing mechanism according to claim 2, wherein the thickness of the fitting portion (21) is the same as that of the clamping plate (33), and the limiting plate (6) is pressed against the fitting portion (21).

4. The transformer core fixing mechanism according to claim 1, wherein the fitting groove (34) is matched with the fitting portion (21).

5. The transformer core securing mechanism according to claim 1, wherein the fitting groove (34) is a dovetail groove or a T-shaped groove.

6. The transformer core fixation mechanism according to claim 1, wherein the clip (3) is a channel steel.

7. The transformer core fixing mechanism according to claim 1, wherein the insulating layers (5) on both sides of the core (1) are respectively coated with a pulling plate (2).

8. The transformer core fixing mechanism according to claim 1 or 7, wherein a plurality of pulling plates (2) are attached to the insulating layer (5) on the same side of the core (1) at intervals.

9. The transformer core fixing mechanism according to claim 1, wherein the ends of the bolts (4) are passed through the corresponding clamping pieces (3) and then nuts (7) are installed.