CN218299562U

CN218299562U - Novel transformer core clamp

Info

Publication number: CN218299562U
Application number: CN202222495593.6U
Authority: CN
Inventors: 郭飞; 廖吉平; 沈云舟; 杨红伟
Original assignee: Chongqing Shentong Electric Equipment Manufacturing Co ltd
Current assignee: Chongqing Shentong Electric Equipment Manufacturing Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-01-13
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a novel transformer core clamping piece in the technical field of dry-type transformer manufacturing devices, which comprises an upper clamping piece, a lower clamping piece, a base and two top clamping mechanisms, wherein each top clamping mechanism is clamped on the upper clamping piece at the left side and the right side in a crossing manner, and comprises an ejector rod, an iron core pressing device and an upper clamping piece clamping device; the iron core clamping device comprises a top clamping block, a connecting pin vertically and fixedly connected to the top surface of the top clamping block and a limiting nut connected to the connecting pin through threads, the upper clamping piece clamping device comprises a U-shaped cross-connection plate, a return pin and two clamping blocks, and the two upper clamping piece clamping devices are symmetrically arranged at the left end and the right end of the ejector rod; the utility model discloses compare in prior art's beneficial effect and carry out the clamp tightly that lasts for the effort through the spring to iron core and last folder, can not alleviate the dynamics that compresses tightly because the vibrations of transformer, avoided the bolt to be shaken the problem of pine to simple structure, convenient to use.

Description

Novel transformer core clamp

Technical Field

The utility model relates to a dry-type transformer preparation technical field specifically indicates a novel transformer core folder.

Background

The transformer core folder is a anchor clamps that is used for carrying out the centre gripping to the transformer core, and after traditional transformer core presss from both sides tightly, use for a long time at the transformer, because the vibrations of transformer, often can make between nut and the double-screw bolt on the transformer anchor clamps shake the pine, and traditional solution is the bolt that adds several connections more, make anchor clamps more stable, and because vibrations are transmitted to the channel-section steel on, and make the bolt shake the pine, only add several bolts more on the channel-section steel, the effect is not obvious, and the bolt that adds still increases near original bolt, make the effect further reduced.

The transformer core clamping piece is characterized by further comprising two clamping reinforcing mechanisms, the two clamping reinforcing mechanisms are fixedly arranged on the upper clamping piece, each clamping reinforcing mechanism comprises a top pressing mechanism, two extending clamping pipes, a side fastening mechanism and a vertical fastening mechanism, the top pressing mechanism is abutted against the top of the iron core, the side fastening mechanisms are fixedly arranged on two sides of the top pressing mechanism, the two extending clamping pipes are clamped in channel steel of the two upper clamping pieces, the two side fastening mechanisms are abutted against the two extending clamping pipes, the two vertical fastening mechanisms are fixedly arranged on the top pressing mechanism, and the two vertical fastening mechanisms are respectively and fixedly connected with the two extending clamping pipes; although two clamping reinforcing mechanisms are arranged in the file, the clamping reinforcing mechanisms are also connected with the upper clamping piece through bolts, the bolts are likely to be loosened by vibration of the transformer, and although a plurality of clamping points are arranged, the pre-tightening effect is not achieved, and the effect is very limited.

In summary, the applicant proposes a novel transformer core clamp.

SUMMERY OF THE UTILITY MODEL

In view of the folder that prior art exists is shaken the problem of pine by the transformer vibrations easily, the utility model discloses technical scheme provides a solve the novel transformer core folder of above-mentioned problem.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

a novel transformer iron core clamping piece comprises an upper clamping piece, a lower clamping piece and a base, wherein two upper clamping pieces and two lower clamping pieces are arranged in the left-right direction, an iron core of a transformer is clamped between the upper clamping pieces and the lower clamping pieces on the left side and the right side, the base is transversely connected to the bottoms of the lower clamping pieces on the left side and the right side, the two base are distributed in the front-back direction, the novel transformer iron core clamping piece also comprises two top clamping mechanisms, each top clamping mechanism stretches across the upper clamping pieces clamped on the left side and the right side, and each top clamping mechanism comprises an ejector rod, an iron core pressing device and an upper clamping device; the iron core clamping device comprises a top clamping block, a connecting pin vertically and fixedly connected to the top surface of the top clamping block and a limiting nut connected to the connecting pin through threads, the connecting pin penetrates out of the ejector rod, a compression spring penetrates through the connecting pin below the ejector rod, the limiting nut is located on the connecting pin above the ejector rod, and the compression spring is in a compressed state in the installation state of the iron core clamping device; the upper clamping piece clamping device comprises a U-shaped cross connection plate, a return pin and clamping blocks, two ends of the cross connection plate are fixedly connected to the ejector rod, one end of the return pin is fixedly connected to the clamping blocks, the return pin horizontally penetrates out of the U-shaped cross connection plate, the ends are also connected with a limiting nut through threads, return springs are connected to the return pin between the clamping blocks and the cross connection plate in a penetrating mode, the two upper clamping piece clamping devices are symmetrically arranged at the left end and the right end of the ejector rod, the inner side surfaces of the two clamping blocks are respectively in press fit with the outer side surfaces of the upper clamping pieces on the same side, and the return springs are also in a compressed state in the installation state of the upper clamping pieces; the cross sections of the return pin and the connecting pin are rectangular, and the holes for the connecting pin and the return pin to pass through on the ejector rod and the cross-connecting plate are also rectangular holes matched with each other.

Through setting up two top clamping mechanism, iron core closing device sets up the top at the iron core, the top clamp splice plays a continuous effect that compresses tightly to the iron core because pressure spring's effect can be pressed down automatically, the last folder clamping device of ejector pin both sides promotes to the inboard because return spring's effect will press from both sides tight piece, the tight piece of the clamp splice of the left and right sides is all pressed from both sides tightly with the last folder of the left and right sides by the inboard promotion of return spring, even the bolt that the vibrations of transformer will go up on the folder shakes the pine like this, thereby top clamp splice and tight piece still will compress tightly tight iron core to last folder, and can not reduce tight dynamics of clamp because of vibrations, it is rotatory in order to carry on spacing top clamp splice and the tight piece of clamp to all establish the return pin and connecting pin into the rectangle round pin, influence and press from both sides tight effect.

Further limiting, the upper clamping piece and the lower clamping piece are both U-shaped section channel steel structures, and the height size of the clamping block is matched with the width of the channel structure of the upper clamping piece; the clamping block is arranged in such a way that the clamping block and the upper clamping piece are better matched.

Further limiting, the bottom profile of the top clamping block is matched with the top profile of the iron core; set up the top clamp splice like this and can make pressure dynamics more even, compress tightly the effect better.

Further limiting, rubber pads are arranged on the inner side surface of the clamping block and the bottom surface of the top clamping block; the rubber pad is arranged, so that friction force is stronger, impact sound caused by vibration is avoided, and noise is lower.

Further limiting, the ejector rod is a hollow rectangular tube; set the ejector pin to hollow rectangular pipe can the weight reduction to the rectangular pipe possess a top surface and bottom surface, can also use two pore pairs connecting pin to carry out a fine limiting displacement under the condition of weight reduction, make the direction that the top clamp splice promoted more stable.

Further limiting, transverse pull bolts are arranged between the upper clamping pieces on the left side and the right side and between the lower clamping pieces on the left side and the right side, longitudinal pull bolts are arranged between the upper clamping pieces and the lower clamping pieces on the same side, the transverse pull bolts are located on the front side and the rear side of the iron core, and the longitudinal pull bolts are located on the front side and the rear side of the iron core; the iron core does not need to be punched by arranging the transverse pull bolt and the longitudinal pull bolt, so that the area of the iron core and the performance of the transformer are ensured.

The utility model discloses compare in prior art's beneficial effect and carry out the clamp tightly that lasts for the effort through the spring to iron core and last folder, can not alleviate the dynamics that compresses tightly because the vibrations of transformer, avoided the bolt to be shaken the problem of pine to simple structure, convenient to use.

Drawings

FIG. 1 is a front view showing a connection state of an upper clip, a lower clip and a base;

fig. 2 is a left side view of the present invention;

fig. 3 is a front view showing a state where the top clamping mechanism and the iron core are engaged;

fig. 4 is a top view of the connecting pin.

The corresponding labels in the figures are: 1-upper clamping piece, 2-lower clamping piece, 3-base, 4-iron core, 5-ejector rod, 6-top clamping block, 7-connecting pin, 8-limiting nut, 9-pressing spring, 10-cross-connecting plate, 11-return pin, 12-clamping block, 13-return spring, 14-rubber pad, 15-cross bolt and 16-longitudinal bolt.

Detailed Description

In order to make the technical solution of the present invention better understood, the following embodiments are further described with reference to the accompanying drawings and examples.

Example (b):

as shown in fig. 1-4, a novel transformer core clamping piece comprises an upper clamping piece 1, a lower clamping piece 2, a base 3 and an iron core 4, wherein the upper clamping piece 1 and the lower clamping piece 2 are respectively provided with two clamping pieces in the left-right direction, the iron core 4 of a transformer is clamped between the upper clamping piece 1 and the lower clamping piece 2 on the left side and the right side, the base 3 is transversely connected to the bottoms of the lower clamping pieces 2 on the left side and the right side, the two clamping pieces are respectively provided with two top clamping mechanisms which are distributed in the front-back direction, each top clamping mechanism is clamped on the upper clamping piece 1 on the left side and the right side in a crossing manner, each top clamping mechanism comprises a mandril 5, an iron core pressing device and an upper clamping device, and the mandril 5 is a hollow rectangular pipe; the iron core clamping device comprises a top clamping block 6, a connecting pin 7 vertically and fixedly connected to the top surface of the top clamping block 6 and a limiting nut 8 connected to the connecting pin 7 through threads, and the bottom surface profile of the top clamping block 6 is matched with the top profile of the iron core 4; the connecting pin 7 penetrates out of the ejector rod 5, a compression spring 9 penetrates through the connecting pin 7 positioned below the ejector rod 5, a limiting nut 8 is positioned on the connecting pin 7 above the ejector rod 5, and the compression spring 9 is in a compressed state in the installation state of the iron core clamping device; the upper clamping piece clamping device comprises a U-shaped cross connecting plate 10, a return pin 11 and two clamping blocks 12, two ends of the cross connecting plate 10 are fixedly connected to the ejector rod 5, one end of the return pin 11 is fixedly connected to the clamping block 12, the return pin 11 horizontally penetrates out of the U-shaped cross connecting plate 10, the ends are also connected with a limiting nut 8 through threads, a return spring 13 penetrates through the return pin 11 between the clamping block 12 and the cross connecting plate 10, the compression springs 9 and 13 are compression springs, the upper clamping piece clamping device is provided with two clamping pieces which are symmetrically arranged at the left end and the right end of the ejector rod 5, the inner side surfaces of the two clamping blocks 12 are respectively in compression fit with the outer side surface of the upper clamping piece 1 at the same side, and the return springs 13 are also in a compression state in the installation state of the upper clamping piece clamping device; the cross sections of the return pin 11 and the connecting pin 7 are rectangular, and the holes on the ejector rod 5 and the through connection plate 10 for the connecting pin 7 and the return pin 11 to pass through are also matched rectangular holes; the upper clamping piece 1 and the lower clamping piece 2 are both U-shaped channel steel structures, and the height dimension of the clamping block 12 is matched with the width of the channel structure of the upper clamping piece 1; rubber pads 14 are arranged on the inner side surface of the clamping block 12 and the bottom surface of the top clamping block 6; horizontal pull bolts 15 are arranged between the upper clamping pieces 1 on the left side and the right side and between the lower clamping pieces 2 on the left side and the right side, longitudinal pull bolts 16 are arranged between the upper clamping pieces 1 and the lower clamping pieces 2 on the same side, the horizontal pull bolts 15 are located on the front side and the rear side of the iron core 4, and the longitudinal pull bolts 16 are located on the front side and the rear side of the iron core 4.

By arranging the two top clamping mechanisms, the iron core pressing device is arranged at the top of the iron core 4, the top clamping block 6 can be automatically pressed downwards to play a role of continuously pressing the iron core 4 due to the action of the pressing spring 9, the upper clamping piece clamping devices on the two sides of the ejector rod 5 push the clamping blocks 12 inwards due to the action of the return spring 13, the clamping blocks 12 on the left side and the right side are both pushed inwards by the return spring 13 to clamp the upper clamping pieces 1 on the left side and the right side, so that even if the vibration of a transformer shakes and loosens bolts on the upper clamping pieces 1, the top clamping block 6 and the clamping blocks 12 can still press the upper clamping pieces 1 to clamp the iron core 4, the clamping force cannot be reduced due to the vibration, the return pin 11 and the connecting pin 7 are both designed into rectangular pins to limit the top clamping block 6 and the clamping block 12 so as to prevent the top clamping block 6 and the clamping block 12 from rotating, and the clamping effect is influenced; the clamping block 12 is arranged so that the clamping block 12 and the upper clamping piece 1 are better matched; the top clamping block 6 is arranged in such a way, so that the pressure force is more uniform, and the pressing effect is better; the rubber pad 14 can make the friction force stronger, and the sound of impact can not be generated due to vibration, and the noise is smaller; the ejector rod 5 is set to be a hollow rectangular tube, so that the weight can be reduced, the rectangular tube has a top surface and a bottom surface, and a good limiting effect can be performed on the connecting pin 7 through two holes under the condition of reducing the weight, so that the pushing direction of the top clamping block 6 is more stable; the transverse pull bolt 15 and the longitudinal pull bolt 16 are arranged in this way, punching of the iron core 4 is not needed, and the area of the iron core 4 and the performance of the transformer are guaranteed.

When the iron core clamping device is installed, a base 3 and a lower clamping piece 2 are installed firstly, an iron core 4 is placed on the lower clamping piece, then an upper clamping piece 1 is installed, two top clamping mechanisms slide into the middle position from two ends of the upper clamping piece 1, and then a transverse pulling bolt 15 and a longitudinal pulling bolt 16 are installed.

The utility model discloses compare in prior art's beneficial effect for the effort through the spring carries out the clamp that lasts to iron core and last folder tightly, can not alleviate the dynamics that compresses tightly because the vibrations of transformer, avoided the bolt to be shaken the problem of pine to simple structure, convenient to use.

It should be noted that the front, back, left, and right in this document are orientations in the drawings.

It is right above the utility model provides a novel transformer core folder has carried out detailed introduction, and the description of specific embodiment is only used for helping understanding the utility model discloses a method and core thought thereof. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. Novel transformer core folder, including last folder, folder and base down, it all is left right direction with folder down to go up the folder and is equipped with two, and the iron core of transformer presss from both sides the last folder and the lower folder of locating the left and right sides between, base transverse connection is in the left and right sides the bottom of folder down, the base is equipped with two, is the fore-and-aft direction and distributes setting, its characterized in that: the iron core clamping device comprises a left clamping piece, a right clamping piece, an iron core pressing device and two top clamping mechanisms, wherein each top clamping mechanism is clamped on the upper clamping pieces on the left side and the right side in a crossing mode and comprises an ejector rod, an iron core pressing device and an upper clamping piece clamping device;

the iron core clamping device comprises a top clamping block, a connecting pin vertically and fixedly connected to the top surface of the top clamping block and a limiting nut connected to the connecting pin through threads, the connecting pin penetrates out of the ejector rod, a compression spring penetrates through the connecting pin positioned below the ejector rod, the limiting nut is positioned on the connecting pin above the ejector rod, and the compression spring is in a compression state in the installation state of the iron core clamping device;

the upper clamping piece clamping device comprises a U-shaped cross connection plate, return pins and clamping blocks, two end heads of the cross connection plate are fixedly connected to the ejector rod, one ends of the return pins are fixedly connected to the clamping blocks, the return pins horizontally penetrate out of the U-shaped cross connection plate, the end heads are also connected with limiting nuts through threads, return springs penetrate through the return pins between the clamping blocks and the cross connection plate, the upper clamping piece clamping devices are symmetrically arranged at the left end and the right end of the ejector rod, the inner side surfaces of the two clamping blocks are respectively in press fit with the outer side surfaces of upper clamping pieces on the same side, and the return springs are also in a compression state in the installation state of the upper clamping piece clamping device;

the cross sections of the return pin and the connecting pin are rectangular, and the holes on the ejector rod and the through connection plate for the connecting pin and the return pin to pass through are also rectangular holes matched with each other.

2. The novel transformer core clip of claim 1, wherein: the upper clamping piece and the lower clamping piece are both U-shaped channel steel structures, and the height size of the clamping block is matched with the width of the groove type structure of the upper clamping piece.

3. The novel transformer core clip of claim 1, wherein: the bottom surface profile of the top clamping block is matched with the top profile of the iron core.

4. The new transformer core clamp of claim 3, wherein: rubber pads are arranged on the inner side face of the clamping block and the bottom face of the top clamping block.

5. The new transformer core clamp of claim 1, wherein: the ejector rod is a hollow rectangular tube.

6. The new transformer core clamp of claim 1, wherein: the left and right sides go up between the folder and the left and right sides down all be equipped with the violently bolt of drawing between the folder, the homonymy go up the folder with be equipped with between the folder down and indulge the bolt, violently draw the bolt and be located both sides around the iron core, indulge and draw the bolt and be located both sides around the iron core.