CN219800627U

CN219800627U - Oil immersed transformer with vibration reduction pad

Info

Publication number: CN219800627U
Application number: CN202321296463.8U
Authority: CN
Inventors: 陈怡凡
Original assignee: Changhang Electric Co ltd
Current assignee: Changhang Electric Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-10-03
Anticipated expiration: 2033-05-26

Abstract

The utility model provides an oil immersed transformer with a vibration damping pad, and belongs to the technical field of transformers. The utility model comprises an iron core silicon steel sheet group, a bottom plate arranged at the bottom of the iron core silicon steel sheet group and a bracket arranged at the bottom of the bottom plate, wherein a plurality of vibration reduction assemblies are arranged below the bracket, and the vibration reduction assemblies are arranged on the lower part of the bracket, wherein the vibration reduction assemblies are formed by the following components in a certain proportion: the damping assembly comprises a center seat arranged below the support, a sliding groove is formed in the bottom end of the center seat upwards, a telescopic column is connected to the inner side wall of the sliding groove in a sliding mode, a spring is fixedly connected between the top end of the telescopic column and the inner side wall of the top end of the sliding groove, a gasket structure is fixedly connected to the bottom end of the telescopic column, a damping pad is arranged in the gasket structure, a groove is formed in the top end of the sliding groove downwards, a damping ring is fixedly connected to the inner wall of the groove, an embedded seat is arranged in the damping ring, a connecting plate is fixedly connected to the top end of the embedded seat, and the connecting plate is fixedly mounted at the bottom of the support through bolts. The utility model has multiple vibration reduction effect and excellent vibration isolation effect, and ensures the stable structure of the transformer.

Description

Oil immersed transformer with vibration reduction pad

Technical Field

The utility model relates to the field of transformers, in particular to an oil immersed transformer with a vibration damping pad.

Background

The residential community is an important place for leisure, relaxation, diet and sleep as a residential place. Therefore, if vibration noise exists, the normal life of people can be seriously affected. However, if the transformer installed in the residential area does not take corresponding vibration-proof noise-reduction measures, larger vibration and noise generally exist, and the surrounding environment is affected.

The noise of the transformer body is mainly caused by the magnetostriction of the iron core silicon steel sheet, the vibration is transmitted to the box body and the accessories through the iron core pad feet to be generated, and the generated vibration can form noise and damage the structural components of the transformer. In response to this phenomenon, vibration isolation is generally performed by installing a vibration damping pad between the core leg and the base in the related art. But the vibration damping pad has a single structure and has poorer vibration damping effect when aiming at a large-sized transformer.

How to invent an oil-immersed transformer with a vibration damping pad to improve the problems becomes a problem to be solved by the person skilled in the art.

Disclosure of Invention

In order to overcome the defects, the utility model provides an oil immersed transformer with a vibration reduction pad, and aims to solve the problems.

The utility model is realized in the following way:

the utility model provides an oil immersed transformer with a vibration reduction pad, which comprises an iron core silicon steel sheet group, a bottom plate arranged at the bottom of the iron core silicon steel sheet group and a bracket arranged at the bottom of the bottom plate, wherein a plurality of vibration reduction assemblies are arranged below the bracket, and the vibration reduction assemblies comprise the following components: the vibration damping assembly comprises a center seat arranged below the support, a sliding groove is formed in the bottom end of the center seat upwards, a telescopic column is connected to the inner side wall of the sliding groove in a sliding mode, a spring is fixedly connected between the top end of the telescopic column and the inner side wall of the top end of the sliding groove, a gasket structure is fixedly connected to the bottom end of the telescopic column, a vibration isolation layer is arranged in the gasket structure, a groove is formed in the top end of the sliding groove downwards, a vibration damping ring is fixedly connected to the inner wall of the groove, a jogged seat is arranged in the vibration damping ring, a connecting plate is fixedly connected to the top end of the jogged seat, and the connecting plate is fixedly mounted at the bottom of the support through bolts.

Preferably, the vibration damping ring comprises a lower pad part and an annular side pad part, the lower pad part and the side pad part are connected into a whole, and the embedded seat, the lower pad part and the side pad part are mutually abutted.

Preferably, the inside of flexible post has seted up the cavity, a plurality of aperture has been run through respectively with the lateral wall in the top of cavity, the inside of spout is linked together with the outside of center seat through aperture and the cavity itself of cavity top and lateral wall.

Preferably, the gasket structure comprises an upper base plate fixedly connected to the bottom end of the telescopic column, a lower base plate is arranged below the upper base plate, the vibration isolation layer is arranged between the upper base plate and the lower base plate, and the lower base plate is connected with the upper base plate through the vibration isolation layer.

Preferably, the vibration damping ring and the vibration isolation layer are made of rubber materials.

Preferably, the side wall of the telescopic column is tightly attached to the inner side wall of the chute.

The beneficial effects of the utility model are as follows: through the cooperation use between center seat, flexible post, spring, damping circle, vibration isolation layer, cavity and the aperture, separate through the damping subassembly between with iron core silicon steel sheet group and the installation base surface, the vibration that iron core silicon steel sheet group produced is transmitted down for the connecting plate, through the setting of tubular damping circle, lower pad portion can weaken in the upper and lower direction, and lateral pad portion can weaken transverse vibration to can reduce multidirectional vibration. Further, air damping is formed between the telescopic column and the center seat, so that the structure is prevented from vibrating greatly. Finally, the vibration isolation layer is matched for further vibration isolation, so that an excellent vibration reduction effect is integrally formed, and when the transformer is used for a large-sized transformer, the vibration and noise of the transformer can be effectively reduced, and the stability of structural components is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an oil immersed transformer with a vibration damping pad according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a partial structure of an oil immersed transformer with a vibration damping pad according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a vibration damping assembly of an oil immersed transformer with vibration damping pad according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of a vibration damping assembly of an oil immersed transformer with vibration damping pad according to an embodiment of the present utility model.

In the figure: 1. iron core silicon steel sheet group; 2. a bottom plate; 3. a bracket; 4. a center seat; 5. a chute; 6. a telescopic column; 7. a spring; 8. an upper backing plate; 9. a lower backing plate; 10. a vibration isolation layer; 11. a groove; 12. a vibration damping ring; 13. a jogging seat; 14. a cavity; 15. a small hole; 16. and (5) connecting a plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, an oil immersed transformer with vibration damping pad, comprising an iron core silicon steel sheet group 1, a bottom plate 2 arranged at the bottom of the iron core silicon steel sheet group 1 and a bracket 3 arranged at the bottom of the bottom plate 2, wherein a plurality of vibration damping components are arranged below the bracket 3, wherein: the damping assembly is including setting up the center seat 4 in support 3 below, spout 5 has been seted up upwards to the bottom of center seat 4, sliding connection has flexible post 6 on the inside wall of spout 5, fixedly connected with spring 7 between the top of flexible post 6 and the top inside wall of spout 5, the bottom fixedly connected with gasket structure of flexible post 6, be provided with vibration isolation layer 10 in the gasket structure, recess 11 has been seted up downwards on the top of spout 5, fixedly connected with damping circle 12 on the inner wall of recess 11, the inside of damping circle 12 is provided with gomphosis seat 13, damping circle 12 includes pad portion and annular side pad portion down, pad portion is connected as an organic wholely with the side pad portion down, gomphosis seat 13 all supports each other with pad portion down, side pad portion is tight. The top end of the jogged seat 13 is fixedly connected with a connecting plate 16, and the connecting plate 16 is fixedly arranged at the bottom of the bracket 3 through bolts.

The side wall of the telescopic column 6 is tightly attached to the inner side wall of the chute 5. The inside of the telescopic column 6 is provided with a cavity 14, the top end and the side wall of the cavity 14 are respectively provided with a plurality of small holes 15 in a penetrating way, and the inside of the chute 5 is communicated with the outside of the center seat 4 through the small holes 15 of the top end and the side wall of the cavity 14 and the cavity 14. The apertures 15 are small in size and the specific dimensions vary from case to case

The gasket structure comprises an upper base plate 8 fixedly connected to the bottom end of the telescopic column 6, a lower base plate 9 is arranged below the upper base plate 8, a vibration isolation layer 10 is arranged between the upper base plate 8 and the lower base plate 9, and the lower base plate 9 is connected with the upper base plate 8 through the vibration isolation layer 10. The vibration damping ring 12 and the vibration isolation layer 10 are made of rubber materials. The upper backing plate 8 and the lower backing plate 9 are connected and fixed with the corresponding mounting surfaces through bolts.

The working principle of the oil immersed transformer with the vibration reduction pad is as follows: the iron core silicon steel sheet group 1 is separated from the mounting base surface through a vibration reduction assembly, vibration generated by the iron core silicon steel sheet group 1 is downwards transmitted to the connecting plate 16, the lower pad part can reduce vertical vibration through the arrangement of the cylindrical vibration reduction ring 12, and the side pad part can reduce transverse vibration, so that multidirectional vibration can be reduced.

Through the preliminary damping of damping circle 12, the vibration that transmits to center seat 4 greatly reduced, and when center seat 4 produced the vibration, telescopic column 6 can slide relatively on the inner wall of spout 5, cushions through spring 7. In the process of sliding the telescopic column 6 and the sliding chute 5 relatively, the gas in the top space in the sliding chute 5 circulates with the outside of the center seat 4 through the small holes 15 and the cavity 14, but the aperture of the small holes 15 is smaller, when the gas circulation rate in the unit time of the telescopic column 6 and the sliding chute 5 is limited, the gas is difficult to circulate rapidly between the sliding chute 5 and the outside of the cavity 14 and the center seat 4, so that the relative sliding of the telescopic column 6 and the sliding chute 5 is blocked under the action of air pressure, and an air damping effect is formed between the telescopic column 6 and the center seat 4, so that the structure is prevented from vibrating greatly. Finally, the vibration isolation layer 10 is matched for further vibration isolation, so that an excellent vibration reduction effect is integrally formed, and when the transformer is used for a large-sized transformer, the vibration and noise of the transformer can be effectively reduced, and the stability of structural components is ensured.

It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an oil-immersed transformer of taking damping pad, includes iron core silicon steel sheet group (1), sets up bottom plate (2) in iron core silicon steel sheet group (1) bottom and sets up support (3) in bottom plate (2) bottom, a serial communication port, the below of support (3) is provided with a plurality of damping subassembly, damping subassembly is including setting up center seat (4) in support (3) below, spout (5) have been seted up upwards to the bottom of center seat (4), sliding connection has telescopic column (6) on the inside wall of spout (5), fixedly connected with spring (7) between the top of telescopic column (6) and the top inside wall of spout (5), the bottom fixedly connected with gasket structure of telescopic column (6), be provided with vibration isolation layer (10) in the gasket structure, recessed groove (11) are seted up downwards on the inner wall of recess (11) fixedly connected with damping circle (12), the inside of damping circle (12) is provided with gomphosis seat (13), top fixedly connected with spring (16) of gomphosis seat (6) and top fixedly connected with bolt (16) are installed in the bottom of connecting plate (3) through the connecting plate.

2. An oil immersed transformer with a vibration damping pad according to claim 1, characterized in that the vibration damping ring (12) comprises a lower pad part and an annular side pad part, the lower pad part and the side pad part are connected into a whole, and the embedded seat (13) is mutually abutted with the lower pad part and the side pad part.

3. The oil immersed transformer with the vibration reduction pad according to claim 2, wherein a cavity (14) is formed in the telescopic column (6), a plurality of small holes (15) are respectively formed in the top end and the side wall of the cavity (14) in a penetrating mode, and the inside of the sliding groove (5) is communicated with the outside of the center seat (4) through the small holes (15) of the top end and the side wall of the cavity (14) and the cavity (14) per se.

4. The oil immersed transformer with the vibration reduction pad according to claim 2, wherein the pad structure comprises an upper pad plate (8) fixedly connected to the bottom end of the telescopic column (6), a lower pad plate (9) is arranged below the upper pad plate (8), the vibration isolation layer (10) is arranged between the upper pad plate (8) and the lower pad plate (9), and the lower pad plate (9) is connected with the upper pad plate (8) through the vibration isolation layer (10).

5. The oil immersed transformer with the vibration damping pad according to claim 4, wherein the vibration damping ring (12) and the vibration isolation layer (10) are made of rubber materials.

6. An oil immersed transformer with vibration damping pad according to claim 3, characterized in that the side wall of the telescopic column (6) is tightly attached to the inner side wall of the chute (5).