CN111584228B

CN111584228B - Transformer coil closing device

Info

Publication number: CN111584228B
Application number: CN202010438261.7A
Authority: CN
Inventors: 喻信红; 冯斌
Original assignee: Jiangxi Mingyuan Electric Co ltd
Current assignee: Jiangxi Mingyuan Electric Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-08-03
Anticipated expiration: 2040-05-21
Also published as: CN111584228A

Abstract

The utility model provides a transformer coil closing device, belongs to transformer production technical field, and including base, stand, cushion, coil, pressure pad, pressure roof beam and housing bolt, the column mouting is on the base, and the cushion is laid at base central authorities, and the coil is laid on the cushion, and the pressure pad is laid on the coil, and the pressure roof beam is installed on the stand and is located the pressure pad, and housing bolt installs on the stand of pressure roof beam top. The base comprises a platform, corner blocks and positioning holes, wherein the corner blocks are arranged at four corners of the platform respectively, and each corner block is provided with one positioning hole. The stand has four, and every stand is installed in a locating hole. A pair of positioning blocks is arranged in a 90-degree neutral position between the screw rod and the positioning holes, and a locking nut is arranged at the top of the screw rod and used for pressing the pressing beam. The pressure beam comprises a circular table, an extension beam and a sleeve, and the circular table is positioned on the pressure pad. The compression bolt is a nonstandard bolt and comprises a threaded area, a hexagonal head, a through hole and a stress application rod, and the threaded area is in threaded fit with the central hole of the circular truncated cone.

Description

Transformer coil closing device

Technical Field

The invention belongs to the technical field of transformer production, and particularly relates to a transformer coil pressing device.

Background

The coil is an important component of the transformer, after the coil is wound, in order to ensure that the coil can bear the axial force during short circuit and meet the requirement of axial size, the coil must be compressed, and for small and medium-sized coils, screws are generally adopted.

Disclosure of Invention

The invention provides a transformer coil pressing device to solve the problems in the background art.

The technical problem solved by the invention is realized by adopting the following technical scheme:

the utility model provides a transformer coil closing device, includes base, stand, cushion, coil, pressure pad, pressure roof beam and housing bolt, and the column mouting is on the base, and the cushion is laid at base central authorities, and the coil is laid on the cushion, and the pressure pad is laid on the coil, and the pressure roof beam is installed on the stand and is located the pressure pad, and housing bolt installs on the stand of pressure roof beam top.

The base comprises a platform, corner blocks and positioning holes, wherein the corner blocks are arranged at four corners of the platform respectively, each corner block is provided with one positioning hole, a locking block is arranged in each positioning hole and is a pair of 90-degree scattered blocks which are arranged in a central symmetry mode, and the locking blocks are located on the upper half portions of the positioning holes. The stand has four, and every stand is installed in a locating hole, and the stand includes stopper, screw rod, latch segment and lock nut, and the screw rod bottom has the latch segment, and the shape of latch segment is unanimous with the shape of latch segment, and the latch segment is located the bottom of screw rod, and the height of latch segment is highly unanimous with the space below the latch segment. A pair of positioning blocks is arranged in a 90-degree neutral position between the screw rod and the positioning holes, and a locking nut is arranged at the top of the screw rod and used for pressing the pressing beam. The cushion block comprises a cushion plate, and the cushion plate is arranged on the platform. The coil is placed on the cushion block, and the center of the coil is sleeved on the bent edge to provide positioning for the coil.

The pressure pad comprises a pressure plate and a boss, the pressure plate is arranged on the top of the coil, and the boss is arranged on the top of the pressure plate. The pressure beam comprises a circular truncated cone, extension beams and a sleeve, the circular truncated cone is positioned on the pressure pad, threads are arranged in a central hole of the circular truncated cone, four extension beams are uniformly distributed on the periphery of the circular truncated cone, the end of each extension beam is provided with the sleeve, the sleeve is sleeved on the screw rod, and the locking nut is arranged above the sleeve. The compression bolt is the nonstandard bolt, and compression bolt includes threaded area, hexagonal head, through-hole and application of force pole, and the threaded area has the hexagonal head with the screw-thread fit of round platform centre bore, threaded area upper end, and hexagonal head convenient to use instrument rotates compression bolt, and hexagonal head lateral wall still has the through-hole, uses application of force pole rotation compression bolt in the through-hole.

Further, the platform center has a center post.

Furthermore, the positioning block top has the auricle, and the auricle is convenient for the dismouting operation of positioning block.

Furthermore, the center of the base plate is provided with a bent edge which is sleeved on the central column.

Furthermore, the cushion block and the pressure pad are both made of hardwood materials or hard rubber materials.

Furthermore, the bottom of the pressing plate is provided with a limiting table which is sleeved at the center of the coil to limit the coil and the pressing pad.

Further, the boss is 4~6 strengthening ribs of scattering dress equipartition to the pressure pad upper surface, and the strengthening rib is the attenuate gradually from inside to outside, and the strengthening rib can be effectively with on the boss load transmission to whole pressure pad, also be exactly the upper surface of transmission to whole coil, and to concentrated load effective dispersion, avoids the pressure pad to be concentrated the destruction in boss department.

Furthermore, the top of the hexagon head is also provided with an inner hexagon groove, and the inner hexagon groove is convenient for using an inner hexagon tool to rotate the rigorous bolt.

The invention has the beneficial effects that:

the invention is used for the compression operation of the transformer coil, the upright post is simple and convenient to install, the operation of hoisting the coil before the upright post is installed is convenient, the operation of installing the pressing beam above the coil is also convenient, and the compression operation of the coil can be easily realized by using the compression bolt.

Drawings

FIG. 1 is a schematic view of the present invention;

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

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a partial cross-sectional view of the base of the present invention;

FIG. 5 is a schematic view of the hold-down bolt of the present invention;

in the figure: 10. the novel pressure welding machine comprises a base, 11. a platform, 12. an angle block, 13. a positioning hole, 131. a locking block, 14. a central column, 20. an upright column, 21. a limiting block, 22. an ear piece, 23. a screw rod, 24. a locking block, 25. a locking nut, 30. a cushion block, 31. a cushion plate, 32. a bent edge, 40. a coil, 50. a pressure pad, 51. a pressure plate, 52. a boss, 53. a reinforcing rib, 60. a pressure beam, 61. a circular table, 62. an extension beam, 63. a sleeve, 70. a pressure bolt, 71. a threaded area, 72. a hexagon head, 73. an inner hexagon groove, 74. a through hole and 75. a force application rod.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1-5, the transformer coil pressing device includes a base 10, a column 20, a pad 30, a coil 40, a pressing pad 50, a pressing beam 60 and a pressing bolt 70, wherein the column 20 is mounted on the base 10, the pad 30 is mounted at the center of the base 10, the coil 40 is mounted on the pad 30, the pressing pad 50 is mounted on the coil 40, the pressing beam 60 is mounted on the column 20 and located on the pressing pad 50, and the pressing bolt 70 is mounted on the column 20 above the pressing beam 60.

The base 10 comprises a platform 11, corner blocks 12, positioning holes 13 and a central column 14, wherein each corner block 12 is arranged at each of four corners of the platform 11, each corner block 12 is provided with one positioning hole 13, a locking block 131 is arranged in each positioning hole 13, each locking block 131 is a pair of 90-degree scattered blocks which are arranged in a central symmetry mode, each locking block 131 is located at the upper half portion of each positioning hole 13, and the center column 14 is arranged at the center of the platform 11.

The number of the upright columns 20 is four, each upright column 20 is installed in one positioning hole 13, each upright column 20 comprises a limiting block 21, a lug 22, a screw 23, a locking block 24 and a locking nut 25, the locking block 24 is arranged at the bottom of each screw 23, the shape of each locking block 24 is consistent with that of each locking block 131, each locking block 24 is located at the bottom of each screw 23, the height of each locking block 24 is consistent with that of a space below each locking block 131, when the locking blocks 24 on the screws 23 are staggered with the locking blocks 131, the screws 23 can be inserted into the positioning holes 13, the screws 23 are rotated by 90 degrees after insertion, the locking blocks 24 are located below the locking blocks 131, and installation of the screws 23 is completed. The screw 23 and the side wall of the positioning hole 13 which are installed completely are provided with a pair of 90-degree neutral positions, in order to prevent the screw 23 from rotating in the neutral position and even from falling off the positioning hole 13 to cause danger, a pair of positioning blocks 21 are installed in the 90-degree neutral position between the screw 23 and the positioning hole 13, the positioning blocks 21 can prevent the screw 23 from rotating accidentally in work, the top of each positioning block 21 is provided with a lug 22, the lug 22 is convenient for the dismounting operation of the positioning block 22, and after the screw 23 is inserted into the positioning hole 13 and completes the angular rotation, the positioning block 21 is inserted to position the screw 23. The top of the screw 23 is provided with a locking nut 25, and the locking nut 25 is used for pressing the pressing beam 60.

The cushion block 30 comprises a cushion plate 31 and a curved edge 32, the cushion plate 31 has the curved edge 32 at the center, the curved edge 32 is sleeved on the center pole 14, the cushion plate 31 is placed on the platform 11, and the cushion block 30 is made of hard wood material or hard rubber material and provides good protection and support for the coil 40.

The coil 40 is placed on the spacer 30 and the center of the coil 40 fits over the bead 32 to provide a location for the coil 40.

The pressure pad 50 comprises a pressure plate 51, a boss 52 and reinforcing ribs 53, the pressure pad 50 is made of a hardwood material or a hard rubber material and provides good protection and support for the coil 40, the pressure plate 51 is arranged on the top of the coil 40, the bottom of the pressure plate 51 is provided with a limiting table (not shown) which is sleeved in the center of the coil 40 and limits the coil and the pressure pad 50, the boss 52 is arranged on the top of the pressure plate 51 and is used for enhancing the strength of the pressure pad 50, the pressure pad 50 cannot be damaged when the extrusion bolt 70 acts on the pressure pad 50, 4-6 reinforcing ribs 53 are uniformly distributed on the upper surface of the pressure pad 50 in a scattering mode by the boss 52, the reinforcing ribs 53 become thinner gradually from inside to outside, the reinforcing ribs 53 can effectively transmit the load on the boss 52 to the whole pressure pad 50, namely, to the upper surface of the whole coil 40 and effectively disperse the concentrated load, and the pressure pad 50 is prevented from being damaged in a concentrated mode at the boss 52.

The pressure beam 60 comprises a circular truncated cone 61, extension beams 62 and a sleeve 63, the circular truncated cone 61 is positioned on the pressure pad 50, threads are arranged in a central hole of the circular truncated cone 61, the four extension beams 62 are uniformly distributed on the periphery of the circular truncated cone 61, the end of each extension beam 62 is provided with the sleeve 63, the sleeve 63 is sleeved on the screw 23, and the locking nut 25 is arranged above the sleeve 63.

The compression bolt 70 is a nonstandard bolt, the compression bolt 70 comprises a threaded area 71, a hexagonal head 72, an inner hexagonal groove 73, a through hole 74 and a force adding rod 75, the threaded area 71 is in threaded fit with the central hole of the circular truncated cone 61, the hexagonal head 72 is arranged at the upper end of the threaded area 71, the hexagonal head 72 is convenient to use, the compression bolt 70 is rotated by using a tool, the hexagonal head 72 is further provided with the inner hexagonal groove 73, the inner hexagonal groove 73 is convenient to use the inner hexagonal tool to rotate the precise bolt 70, the side wall of the hexagonal head 72 is further provided with the through hole 74, and the compression bolt 70 is rotated by using the force adding rod 75 in the through hole 74. Under the condition that a plurality of tightening modes are available, according to actual conditions, a proper mode is selected to tighten the pressing bolt 70 according to requirements, the pressing bolt 70 presses the pressing pad 50 downwards, the coil 40 is further pressed, and the function of pressing the coil is achieved.

The working principle of the invention is as follows: firstly, a cushion block 30 with a proper size is selected to be placed on a platform 11, a coil 40 is hoisted on the cushion block 30, a pressure pad 50 is placed on the coil 40, four upright posts 20 are installed in positioning holes 13 and rotate 90 degrees to complete limiting, limiting blocks 21 are inserted into free spaces of side walls of the upright posts 20 and the positioning holes 13, four sleeves 63 of a pressure beam 60 are sleeved into the four upright posts 20, the pressure beam 60 is locked by using locking nuts 25 respectively, a pressure bolt 70 is installed on a circular table 61, the pressure bolt 70 is rotated in a proper mode to enable the pressure bolt 70 to extrude the pressure pad 50, the pressure pad 50 extrudes the coil 40 again until a compression effect is achieved, the compression time is kept as required, and then the coil compression operation is completed.

The above embodiments mainly describe the transformer coil pressing device of the present invention. While only a limited number of embodiments and features have been described, those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A transformer coil pressing device comprises a base (10), a stand column (20), cushion blocks (30), a coil (40), a pressure pad (50), a pressure beam (60) and a pressure bolt (70), and is characterized in that the stand column (20) is installed on the base (10), the cushion blocks (30) are installed in the center of the base (10), the coil (40) is installed on the cushion blocks (30), the pressure pad (50) is installed on the coil (40), the pressure beam (60) is installed on the stand column (20) and located on the pressure pad (50), the pressure bolt (70) is installed on the stand column (20) above the pressure beam (60), the base (10) comprises a platform (11), corner blocks (12), positioning holes (13) and a center column (14), each corner block (12) is arranged on each of four corners of the platform (11), each positioning hole (13) is arranged on each corner block (12), and a locking block (131) is arranged in each positioning hole (13), the locking blocks (131) are a pair of 90-degree fan-shaped blocks which are arranged in a central symmetry mode, the locking blocks (131) are located on the upper half portion of the positioning hole (13), the number of the stand columns (20) is four, each stand column (20) is installed in one positioning hole (13), each stand column (20) comprises a limiting block (21), a lug plate (22), a screw rod (23), a locking block (24) and a locking nut (25), the locking block (24) is arranged at the bottom of each screw rod (23), the shape of each locking block (24) is consistent with that of each locking block (131), the locking blocks (24) are located at the bottom of each screw rod (23), the height of each locking block (24) is consistent with that of a space below the locking block (131), a pair of the positioning blocks (21) is installed in a space between each screw rod (23) and the corresponding positioning hole (13), each cushion block (30) comprises a cushion plate (31), each cushion plate (31) is placed on the platform (11), and each pressure pad (50) comprises a pressure plate (51), The pressing plate comprises a boss (52) and reinforcing ribs (53), the boss (52) is arranged at the top of the pressing plate (51), the pressing beam (60) comprises a circular truncated cone (61), extension beams (62) and sleeves (63), the circular truncated cone (61) is located on the pressing pad (50), threads are arranged in a central hole of the circular truncated cone (61), four extension beams (62) are uniformly distributed in the circular truncated cone (61) to the periphery, one sleeve (63) is arranged at the end of each extension beam (62), the sleeves (63) are sleeved on the screw rods (23), the locking nuts (25) are installed above the sleeves (63), the pressing bolts (70) are non-standard bolts and comprise threaded zones (71), hexagonal heads (72), through holes (74) and stress application rods (75), the threaded zones (71) are in threaded fit with the central hole of the circular truncated cone (61), the hexagonal heads (72) are arranged at the upper ends of the threaded zones (71), through holes (74) are arranged on the side walls of the hexagonal heads (72), the pressure bolt (70) is rotated by using a forcing rod (75) in the through hole (74).

2. The transformer coil hold-down device according to claim 1, characterized in that the platform (11) has a center post (14) in the center.

3. The transformer coil pressing device according to claim 1, wherein the positioning block (21) has a tab (22) at the top.

4. The transformer coil pressing device according to claim 2, wherein the pad plate (31) has a bent edge (32) at the center, and the bent edge (32) is fitted on the center pole (14).

5. The transformer coil pressing device according to claim 1, wherein the head block (30) and the pressing pad (50) are made of a hard wood material or a hard rubber material.

6. The transformer coil pressing device according to claim 1, wherein the bottom of the pressing plate (51) is provided with a limiting table which is sleeved in the center of the coil (40).

7. The transformer coil pressing device according to claim 1, wherein 4-6 reinforcing ribs (53) are scattered and uniformly distributed on the upper surface of the pressing pad (50) from the boss (52), and the reinforcing ribs (53) become thinner gradually from inside to outside.

8. The transformer coil hold-down device according to claim 1, wherein the top of the hex head (72) further has an internal hex slot (73).