CN113410032A

CN113410032A - On-site construction method of dry-type voltage transformer power distribution cabinet

Info

Publication number: CN113410032A
Application number: CN202110546699.1A
Authority: CN
Inventors: 张睿; 李肇琪
Original assignee: Henan Jugao Jiaye Power Equipment Co ltd
Current assignee: Henan Jugao Jiaye Power Equipment Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-09-17
Anticipated expiration: 2041-05-19
Also published as: CN113410032B

Abstract

The invention relates to a field construction method of a dry-type voltage transformer power distribution cabinet, the dry-type transformer power distribution cabinet comprises end covers, three iron cores are uniformly distributed between an upper end cover and a lower end cover, each cover plate is provided with three lantern rings, coils are wound on the iron cores, fastening rods are arranged between adjacent iron cores and on the front side and the rear side of each iron core, four extrusion plates are uniformly distributed on one side of each lantern ring departing from the cover plate in an annular mode, the end part of each fastening rod is sleeved with an adjusting plate, the adjusting plate is driven to move in the direction far away from the cover plate by rotating a fastening bolt on the fastening rod, the adjusting rod is driven to be separated from the extrusion plates, the coils are clamped, and the coils wound for a long time are prevented from falling off the iron cores; even if the coil is loosened before being clamped, the lantern ring can still be driven to rotate under the action of the return spring, so that the coil is kept tensioned; in addition, the adjusting process of the adjusting plate is completed by rotating the fastening bolt when the iron core is installed, and compared with an independent adjusting device for compressing the coil, the adjusting plate is more convenient to operate.

Description

On-site construction method of dry-type voltage transformer power distribution cabinet

Technical Field

The invention belongs to the technical field of voltage transformer equipment, and particularly relates to a field construction method of a dry-type voltage transformer power distribution cabinet.

Background

The dry type transformer is widely used for local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and other places, the dry type transformer is simply a transformer with an iron core and a winding which are not immersed in insulating oil, a coil on the dry type transformer is arranged inside, the coil is also directly wound outside the dry type transformer, most of the coils wound by the conventional dry type transformer are of a tension type, two ends of the coil after being wound are fixed on the iron core, the coil is prevented from falling off, two ends of the coil bear large tension, and after the dry type transformer is used for a long time, the part of the end part of the coil fixed with the iron core is easy to loosen, so that the coil falls off.

Application number 201922156698.7 in the prior art discloses a dry-type transformer with coil hold-down structure, through the effect of stripper plate, spring, fixed plate realize that the cushion on the stripper plate inner wall forms the clamp with transformer main part outer wall laminating, and then prevent to twine for a long time and cause the coil to drop, but its operation is heavy and complicated, need operate stir board and gag lever post repeatedly and can only accomplish the installation operation, can not carry out the self-holding when the coil becomes flexible simultaneously, influence the normal use of transformer, invention CN109859942A discloses a large-scale transformer coil fastener, it realizes the coil fastening through the clamp plate and the laminating of circle coil and secondary spacing of return spring elasticity, but its limiting displacement can only realize quick fixed but can not carry out the self-adjustment coil position when the coil becomes flexible. Therefore, further improvements are needed to address the deficiencies of the prior art.

Disclosure of Invention

In view of the above, the present invention provides a method for constructing a dry-type voltage distribution cabinet on site, so as to solve the above problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the dry-type transformer power distribution cabinet comprises an upper end cover and a lower end cover, three iron cores are uniformly distributed between the upper end cover and the lower end cover, through holes matched with the iron cores are formed in the cover plates, each cover plate is provided with three lantern rings, the middle parts of the lantern rings penetrate through the through holes in the cover plates, the cover plates are connected with the middle parts of the lantern rings through return force springs, the upper ends and the lower ends of the iron cores are respectively inserted into the through holes of the corresponding end covers, coils are wound on the iron cores, fastening rods are arranged between the adjacent iron cores and on the front side and the rear side of each iron core, the upper ends and the lower ends of the fastening rods penetrate through the corresponding cover plates, and fastening bolts are connected with the upper ends and the lower ends of the fastening rods in a threaded fit mode.

The lantern ring deviates from one side annular evenly distributed of apron has four stripper plates, and the stripper plate inner wall adapts to with the iron core lateral wall, is convenient for press from both sides the coil on the tight iron core, and is provided with fastening spring between stripper plate outer wall and the lantern ring edge, fastening spring one end and stripper plate fixed connection, and the fastening spring other end and lantern ring edge fixed connection.

The regulating plate has been cup jointed to the anchorage bar tip, and the fastening bolt outer wall is connected with regulating plate screw-thread fit, and the regulating plate distributes both sides about the end cover with the lantern ring, and annular distribution has four arc through-holes on the lantern ring, be provided with the through-hole on the stripper plate, bilateral symmetry sets up the regulation pole on the regulating plate, adjusts the pole and passes the end cover in proper order, with the arc through-hole that adjusts the pole and correspond the position, and adjust the pole and insert in the through-hole of stripper plate, will extrude the plate rigidity, make fastening spring be in compression state.

Preferably, the rotation direction of the return spring is the same as the winding direction of the coil, and when the adjusting rod is inserted into the through hole of the extrusion plate, the return spring is in a compressed state.

Preferably, a soft pad is pasted in the extrusion plate to prevent the extrusion plate from damaging the coil.

The invention has the beneficial effects that: according to the invention, the two end covers are close to each other by rotating the fastening bolt on the fastening rod, the iron core between the two end covers is clamped and fixed, and meanwhile, under the matching action of the outer wall of the fastening bolt and the threads of the adjusting plate, the fastening bolt drives the adjusting plate to move towards the direction far away from the cover plate and drives the adjusting rod to be separated from the extrusion plate, on one hand, the elastic action of the fastening spring pushes the extrusion plate to clamp the coil, and the coil wound for a long time is prevented from falling off from the iron core; on the other hand, the elastic force of the return spring enables the lantern ring to have a rotating force, and the rotating force of the lantern ring is the same as the winding direction of the coil, so that the coil always has a tensioned force, even if the coil is loosened before being clamped, the action of the return spring can still be used for driving the lantern ring to rotate, the coil is kept tensioned, and automatic adjustment of the coil in the loosening process can be realized; in addition, the adjusting process of the adjusting plate is completed by rotating the fastening bolt when the iron core is installed, and compared with an independent adjusting device for compressing the coil, the adjusting plate is more convenient to operate.

Drawings

FIG. 1 is a view showing the structure of the main body of the present invention;

FIG. 2 is a view showing the structure of the portion A in FIG. 1 according to the present invention;

FIG. 3 is a top view of the collar of the present invention;

fig. 4 is a bottom view of the collar of the present invention.

Reference numbers in the figures: 1, end cover; 2, an iron core; 3, a coil; 4, a lantern ring; 401 arc-shaped through holes; 5 fastening the rod; 6 fastening the bolt; 7, adjusting plates; 8, adjusting a rod; 9 fastening a spring; 10 extruding the plate; 11 return spring.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1-4, a field construction method of a dry-type voltage transformer power distribution cabinet includes an upper end cover 1 and a lower end cover 1, three iron cores 2 are uniformly distributed between the upper end cover 1 and the lower end cover 1, through holes matched with the iron cores 2 are formed in the cover plates 1, three lantern rings 4 are arranged on each cover plate 1, the middle parts of the lantern rings 4 penetrate through the through holes in the cover plates 1, the cover plates 1 are connected with the middle parts of the lantern rings 4 through return springs 11, the upper end and the lower end of each iron core 2 are respectively inserted into the corresponding through holes in the end covers 1, coils are wound on the iron cores 2, fastening rods 5 are arranged between the adjacent iron cores 2 and on the front side and the rear side of each iron core 2, the upper end and the lower end of each fastening rod 5 penetrate through the corresponding cover plates 1, and fastening bolts 6 are connected to the upper end and the lower end of each fastening rod 5 in a threaded fit manner.

In this embodiment, lantern ring 4 deviates from one side annular evenly distributed of apron 1 has four stripper plates 10, and the stripper plate 10 inner wall is the arc structure with 2 lateral walls adaptations of iron core, is convenient for press from both sides the coil on the tight iron core 2, and is provided with fastening spring 9 between stripper plate 10 outer wall and the 4 edges of lantern ring, fastening spring 9 one end and stripper plate 10 fixed connection, and the fastening spring 9 other end and the 4 edge fixed connections of lantern ring.

In this embodiment, regulating plate 7 has been cup jointed to 5 tip of anchorage bar, and 6 outer walls of fastening bolt are connected with 7 screw-thread fit of regulating plate, and regulating plate 7 distributes in end cover 1 both sides from top to bottom with lantern ring 4, and ring distribution has four arc through-holes 401 on the lantern ring 4, be provided with the through-hole on the stripper plate 10, and bilateral symmetry sets up regulation pole 8 on the regulating plate 7, adjusts pole 8 and passes end cover 1 in proper order, with the arc through-hole 401 who adjusts the pole 8 and correspond the position, and adjust the pole 8 and insert in the through-hole of stripper plate 10, with stripper plate 10 rigidity, make fastening spring 9 be in compression state.

In the present embodiment, the rotation direction of the return spring 11 is the same as the winding direction of the coil, and when the adjustment lever 8 is inserted into the through hole of the pressing plate 10, the return spring 11 is in a compressed state.

In this embodiment, a soft pad is adhered inside the pressing plate 10 to prevent the pressing plate from damaging the coil 3.

The field construction method of the invention comprises the following steps: place iron core 2 that twine coil 3 between two end covers 1 of dry-type transformer switch board, through fastening bolt 6 on the rotatory anchorage bar 5, make two end covers 1 be close to each other, iron core 2 between two end covers 1 presss from both sides tightly fixedly, simultaneously under fastening bolt 6 outer wall and the 7 screw-thread fit of regulating plate, fastening bolt 6 drives regulating plate 7 and removes to the direction of keeping away from apron 1, it separates with stripper plate 10 to drive regulation pole 8, on the one hand fastening spring 9's elastic action promotes stripper plate 10 and presss from both sides the coil tightly, on the other hand, the elasticity of return spring 11 makes lantern ring 4 have the revolving force, and the revolving force of lantern ring 4 is the same with coil 3's winding direction, make the coil keep twining the tight state.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a dry-type voltage ware switch board, dry-type transformer switch board include two upper and lower end covers, evenly distributed has three iron core between two upper and lower end covers, be provided with on the apron with iron core complex through-hole, its characterized in that: every all be provided with three lantern ring on the apron, the lantern ring middle part passes the through-hole on the apron, and apron and lantern ring middle part pass through back force spring coupling, and both ends insert the through-hole of the end cover that corresponds respectively about the iron core in, all twine on the iron core has the coil, and the side all is provided with the tighrening rod between the adjacent iron core and around the iron core, and both ends all pass the apron that corresponds about the tighrening rod, and both ends screw-thread fit is connected with fastening bolt about the tighrening rod.

2. The dry-type voltage transformer power distribution cabinet according to claim 1, wherein four extrusion plates are uniformly distributed on one side of the sleeve ring, which is away from the cover plate, in an annular manner, the inner wall of each extrusion plate is adapted to the side wall of the iron core, a fastening spring is arranged between the outer wall of each extrusion plate and the edge of the sleeve ring, one end of each fastening spring is fixedly connected with the corresponding extrusion plate, and the other end of each fastening spring is fixedly connected with the edge of the sleeve ring.

3. The dry-type voltage distribution cabinet according to claim 1, wherein an adjusting plate is sleeved on an end portion of the fastening rod, an outer wall of the fastening bolt is in threaded fit connection with the adjusting plate, the adjusting plate and the lantern ring are distributed on the upper side and the lower side of the end cover, four arc-shaped through holes are distributed on the lantern ring in an annular mode, through holes are formed in the extrusion plate, adjusting rods are symmetrically arranged on the adjusting plate in the left-right mode, the adjusting rods sequentially penetrate through the end cover and the arc-shaped through holes in the positions corresponding to the adjusting rods, and the adjusting rods are inserted into the through holes of the extrusion plate.

4. A dry-type voltage distribution cabinet according to claim 1, wherein the rotation direction of the return spring is the same as the winding direction of the coil.

5. A dry-type voltage distribution cabinet according to claim 2, wherein a soft pad is adhered to the interior of the extruded plate.

6. The on-site construction method of the dry-type voltage transformer power distribution cabinet according to claim 1, wherein the iron core wound with the coil is placed between two end covers of the dry-type transformer power distribution cabinet, the two end covers are close to each other by rotating the fastening bolt on the fastening rod, the iron core between the two end covers is clamped and fixed, meanwhile, under the action of the thread matching of the outer wall of the fastening bolt and the adjusting plate, the fastening bolt drives the adjusting plate to move in the direction away from the cover plate, the adjusting rod is driven to be separated from the extrusion plate, on one hand, the extrusion plate is pushed by the elastic force of the fastening spring to clamp the coil, on the other hand, the elastic force of the return spring enables the lantern ring to have a rotating force, and the rotating force of the lantern ring is the same as the winding direction of the coil, so that the coil is kept in a winding state.