CN216849620U - Vibration damper for noise reduction of dry-type air-core reactor - Google Patents
Vibration damper for noise reduction of dry-type air-core reactor Download PDFInfo
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- CN216849620U CN216849620U CN202220566612.7U CN202220566612U CN216849620U CN 216849620 U CN216849620 U CN 216849620U CN 202220566612 U CN202220566612 U CN 202220566612U CN 216849620 U CN216849620 U CN 216849620U
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Abstract
The utility model discloses a bumper shock absorber that dry-type air-core reactor made an uproar and used, the upper end of reactor coil body post insulator is connected with the bottom that corresponds the supporting leg in the dry-type air-core reactor, the lower extreme of reactor coil body post insulator is fixed in on the spring holder, be provided with buffer spring between upper spring holder and the lower spring holder, the upper end of positioning screw is provided with first set nut, the lower extreme of positioning screw has cup jointed the second set nut after passing upper spring holder and lower spring holder, all cup jointed rubber gasket and lock nut on each positioning screw, wherein, the rubber gasket is located between lock nut and the upper spring holder, and there is a clearance between rubber gasket and the upper spring holder, the bottom rises the seat and is located the bottom of lower spring holder; be provided with first rubber packing ring between first stop nut and the last spring holder, be provided with second rubber packing ring between second stop nut and the lower spring holder, this bumper shock absorber's noise reduction effect is good, and the shock attenuation effect is excellent.
Description
Technical Field
The utility model belongs to the technical field of the reactor, a bumper shock absorber of usefulness of making an uproar falls in dry-type air-core reactor is related to.
Background
The coil of the dry-type air reactor is composed of one or more coil layers which are impregnated and sealed by epoxy resin, and the conductor material is mainly insulating aluminum. The noise is mainly generated because when the winding passes through alternating current, magnetic fields are generated inside and outside the reactor, the magnetic fields act on the reactor winding in turn, the current alternates along with time, the size and the direction of the magnetic fields are changed along with the alternating current, and the mutual action of the current and the magnetic fields causes the winding to vibrate. The vibration can generate larger noise, thereby influencing the noise evaluation quality of a power station or a power station.
With the development of the industry in China, the development of power grid construction and the shortage of land data in China, in order to save land resources, a dry-type air reactor is usually installed on the second floor or even the third floor of a transformer substation, a common reactor foundation is installed in the middle of a floor slab, the floor slab is in a suspended state, and when the reactor runs, a reactor body and the floor slab are easy to resonate, so that the whole floor and an attendant are greatly influenced, and particularly the inspection work and the normal sleep of the attendant are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a bumper shock absorber of usefulness of making an uproar falls in dry-type air-core reactor, this bumper shock absorber's noise reduction effect is good, and the shock attenuation effect is excellent.
In order to achieve the above purpose, the damper for noise reduction of the dry-type air reactor of the present invention comprises a plurality of damping modules, wherein one damping module corresponds to one supporting leg in the dry-type air reactor;
each damping module comprises a bottom lifting seat, a reactor coil body post insulator, an upper spring seat, a lower spring seat and a plurality of positioning screws;
the upper end of a reactor coil body post insulator is connected with the bottom of a corresponding supporting leg in the dry-type hollow reactor, the lower end of the reactor coil body post insulator is fixed on an upper spring seat, a buffer spring is arranged between the upper spring seat and a lower spring seat, the upper end of a positioning screw rod is provided with a first positioning nut, the lower end of the positioning screw rod penetrates through the upper spring seat and the lower spring seat and is sleeved with a second positioning nut, each positioning screw rod is sleeved with a rubber gasket and a locking nut, wherein the rubber gasket is positioned between the locking nut and the upper spring seat, a gap is reserved between the rubber gasket and the upper spring seat, and a bottom lifting seat is positioned at the bottom of the lower spring seat;
a first rubber gasket is arranged between the first limiting nut and the upper spring seat, and a second rubber gasket is arranged between the second limiting nut and the lower spring seat.
All the positioning screws are uniformly distributed along the circumferential direction.
A first concave clamping groove is formed in the middle of the upper spring seat, and the upper end of the buffer spring is located in the first concave clamping groove.
The reactor coil body post insulator is connected with the upper spring seat through a flange.
The middle part of the lower spring seat is provided with a second concave clamping groove, and the lower end of the buffer spring is positioned in the second concave clamping groove.
The middle part of lower spring holder is provided with a plurality of mounting holes that are used for connecting bottom lift seat.
The number of the positioning screws is four.
The number of the mounting holes is four.
The utility model discloses following beneficial effect has:
dry-type air-core reactor fall bumper shock absorber of usefulness of making an uproar when concrete operation, all install additional on each supporting leg of reactor the utility model, when the reactor vibrations, play the cushioning effect through buffer spring and rubber gasket, reduce the spring bottom plate to the collision dynamics of two nut locking device to reach the shock attenuation effect, it needs to explain simultaneously, will the utility model discloses install the bottom of each supporting leg in the reactor, can adjust the degree of freedom on every supporting leg direction of height wantonly, make each supporting leg atress of reactor balanced, reduce the reactor by a wide margin and because of the coiling the not decentraction of reactor decentraction, focus easily squint, the noise that the stress point of each supporting leg is not in a plane and each stress point inequality produces, the effect of making an uproar is better. It should be noted that the utility model has the characteristics of noise reduction effect is good, convenient operation, simple structure, processing convenience.
Further, the utility model discloses be provided with first spill draw-in groove and second spill draw-in groove to reduce buffer spring and be eccentric because of the atress, improve the security of product by a wide margin.
Drawings
Fig. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic view of the present invention;
fig. 3 is a schematic structural view of the upper spring seat 2;
FIG. 4 is a schematic view of a spring;
fig. 5 is a schematic view of lower spring seat 4;
FIG. 6 is a schematic view of a double nut lock with a shock absorbing function;
fig. 7 is a schematic view of the novel shock absorber installed at the bottom of the insulator.
The reactor coil body supporting insulator comprises a reactor coil body supporting insulator 1, an upper spring seat 2, a buffer spring 3, a lower spring seat 4, a rubber gasket 5, a positioning screw rod 6, a locking nut 7 and a bottom lifting seat 8.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
A schematic structural diagram according to an embodiment of the present disclosure is shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1 to 7, the damper for reducing noise of the dry type air reactor of the present invention includes a plurality of damping modules, wherein one damping module corresponds to one support leg of the dry type air reactor; each damping module comprises a reactor coil body post insulator 1, an upper spring seat 2, a lower spring seat 4 and a plurality of positioning screws 6;
the upper end of reactor coil body post insulator 1 is connected with the bottom of supporting leg in the dry-type air reactor, the lower extreme of reactor coil body post insulator 1 is fixed in on spring holder 2, be provided with buffer spring 3 between upper spring holder 2 and the lower spring holder 4, the upper end of positioning screw 6 is provided with first set nut, second set nut has been cup jointed after the lower extreme of positioning screw 6 passes upper spring holder 2 and lower spring holder 4, all cup jointed rubber gasket 5 and lock nut 7 on each positioning screw 6, wherein, rubber gasket 5 is located between lock nut 7 and the upper spring holder 2, and gapped between rubber gasket 5 and the upper spring holder 2, the seat 8 that rises in the bottom is located the bottom of lower spring holder 4.
A first rubber gasket is arranged between the first limit nut and the upper spring seat 2, and a second rubber gasket is arranged between the second limit nut and the lower spring seat 4.
A plurality of through holes are formed in the upper spring seat 2 and the lower spring seat 4, and the positioning screws 6 are uniformly distributed along the circumferential direction.
When the damper works, the first positioning nut and the second positioning nut are properly adjusted according to the running condition of the damper, the verticality of the reactor can be adjusted through the first positioning nut and the second positioning nut until balance is adjusted, and the first positioning nut and the second positioning nut are locked; in order to prevent the upper spring seat 2 from contacting and colliding with the lock nut 7 to generate noise, a first rubber gasket and a second rubber gasket are arranged to realize noise reduction.
The middle part of the upper spring seat 2 is provided with a first concave clamping groove, wherein the upper end of the buffer spring 3 is positioned in the first concave clamping groove, and the reactor coil body post insulator 1 is connected with the upper spring seat 2 through a flange.
Further, the size of the upper spring seat 2 is phi 200mm, the outer diameter of the first concave clamping groove is 95mm, and the height of the upper spring seat 2 is 20 mm.
Further, the buffer spring 3 is made of the compression spring 304 or 4Cr13 material.
The diameter of the material used for the buffer spring 3 is phi 12mm, the pitch is 27.3mm, the effective height is 70mm, the intermediate diameter of the buffer spring 3 is phi 80, and the test load is 6277 (F)S/N)。
The middle part of lower spring holder 4 is provided with second spill draw-in groove, and buffer spring 3's lower extreme is located in the second spill draw-in groove, sets up 4 mounting holes in the middle part of lower spring holder 4 for go on the transitional coupling with bottom seat 8 that rises.
Further, the size of lower spring seat 4 is phi 200mm, and the external diameter of second concave draw-in groove is 95mm, and the height of lower spring seat 4 is 20 mm.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A shock absorber for noise reduction of a dry type air reactor is characterized by comprising a plurality of shock absorption modules, wherein one shock absorption module corresponds to one supporting leg in the dry type air reactor;
each damping module comprises a bottom lifting seat (8), a reactor coil body post insulator (1), an upper spring seat (2), a lower spring seat (4) and a plurality of positioning screws (6);
the upper end of a reactor coil body post insulator (1) is connected with the bottom of a corresponding supporting leg in a dry-type air reactor, the lower end of the reactor coil body post insulator (1) is fixed on an upper spring seat (2), a buffer spring (3) is arranged between the upper spring seat (2) and a lower spring seat (4), the upper end of a positioning screw rod (6) is provided with a first positioning nut, the lower end of the positioning screw rod (6) penetrates through the upper spring seat (2) and the lower spring seat (4) and is sleeved with a second positioning nut, each positioning screw rod (6) is sleeved with a rubber gasket (5) and a locking nut (7), wherein the rubber gasket (5) is positioned between the locking nut (7) and the upper spring seat (2), a gap is reserved between the rubber gasket (5) and the upper spring seat (2), and the bottom lifting seat (8) is positioned at the bottom of the lower spring seat (4);
a first rubber gasket is arranged between the first limit nut and the upper spring seat (2), and a second rubber gasket is arranged between the second limit nut and the lower spring seat (4).
2. A damper for noise reduction of a dry-type air-core reactor according to claim 1, characterized in that the positioning screws (6) are evenly distributed in the circumferential direction.
3. The damper for noise reduction of a dry-type air-core reactor according to claim 1, characterized in that a first concave catching groove is provided at a middle portion of the upper spring seat (2), wherein an upper end of the damper spring (3) is located in the first concave catching groove.
4. A damper for noise reduction of a dry-type air-core reactor according to claim 1, characterized in that the reactor coil body post insulator (1) is connected to the upper spring seat (2) by a flange.
5. The shock absorber for reducing noise of the dry-type air-core reactor according to claim 3, wherein a second concave catching groove is provided at a middle portion of the lower spring seat (4), and a lower end of the buffer spring (3) is located in the second concave catching groove.
6. A damper for noise reduction of a dry-type air-core reactor according to claim 1, characterized in that the middle part of the lower spring seat (4) is provided with mounting holes for connecting the bottom elevating seat (8).
7. A damper for noise reduction of a dry-type air-core reactor according to claim 1, characterized in that the number of the positioning screws (6) is four.
8. A dry-type air-core reactor noise-reducing damper as set forth in claim 6, characterized in that the number of the mounting holes is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220566612.7U CN216849620U (en) | 2022-03-15 | 2022-03-15 | Vibration damper for noise reduction of dry-type air-core reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220566612.7U CN216849620U (en) | 2022-03-15 | 2022-03-15 | Vibration damper for noise reduction of dry-type air-core reactor |
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| CN216849620U true CN216849620U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220566612.7U Active CN216849620U (en) | 2022-03-15 | 2022-03-15 | Vibration damper for noise reduction of dry-type air-core reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116479849A (en) * | 2023-04-26 | 2023-07-25 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
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2022
- 2022-03-15 CN CN202220566612.7U patent/CN216849620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116479849A (en) * | 2023-04-26 | 2023-07-25 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
| CN116479849B (en) * | 2023-04-26 | 2023-12-12 | 中国电力工程顾问集团有限公司 | Damping support platform of dry-type reactor and installation method thereof |
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