A vibration isolation structure for a dry-type transformer

Abstract

The present invention relates to the technical field of transformer vibration isolation, and specifically relates to a vibration isolation structure for a dry-type transformer, which includes a dry-type transformer body, a vibration isolation box body, and a vibration isolation assembly. The dry-type transformer body is arranged inside the vibration isolation box body. The vibration isolation assembly includes two limit sliders and limit buffer rods. The vibration isolation box body has two first chutes, and the two limit sliders are respectively slidably connected to the corresponding first chutes. The two limit sliders are symmetrically arranged on both sides of the dry-type transformer body. By installing the dry-type transformer body inside the vibration isolation box body, when the dry-type transformer body vibrates, it drives the limit sliders to slide in the first chutes, and at the same time, the limit buffer rods move up and down above the dry-type transformer body, playing a buffering role and guiding the vibration direction for limiting. Thus, the vibration direction of the dry-type transformer body is restricted, avoiding a large amount of vibration noise caused by vibrating in all directions, and thereby improving the use stability and vibration isolation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer vibration isolation, and particularly to a vibration isolation structure for a dry-type transformer. Background Art

[0002] Dry-type transformers have the advantages of strong short-circuit resistance, small maintenance workload, high operating efficiency, small volume, and low noise. Therefore, they are commonly used in places with high performance requirements such as fire prevention and explosion protection. However, when a dry-type transformer is working, it will generate a large amount of vibration. The transmission of vibration causes the dry-type transformer to vibrate and come into contact and collision with surrounding equipment, resulting in damage to the equipment and the transformer itself.

[0003] In the prior art, a fixed seat is fixed at a reserved position, and the transformer body is installed on a leaf spring vibration isolation mechanism fixedly connected to the fixed seat through a base. When the transformer body generates vibration during operation, the vibration is transmitted to the leaf spring vibration isolation mechanism, and the leaf spring vibration isolation mechanism blocks the vibration to prevent it from being transmitted to the fixed seat, thereby reducing the impact on surrounding equipment.

[0004] However, in the aforementioned prior art, when damping a dry-type transformer, although vibration isolation is carried out, due to the lack of restriction on the vibration direction, the transformer will vibrate randomly, affecting the use stability, making the transformer housing prone to resonance or collision with other equipment, and thus generating a large amount of noise, which greatly affects the work of the staff. Summary of the Invention

[0005] The purpose of the present invention is to provide a vibration isolation structure for a dry-type transformer, which solves the problem that in the prior art, when damping a dry-type transformer, although vibration isolation is carried out, due to the lack of restriction on the vibration direction, the transformer will vibrate randomly, affecting the use stability, making the transformer housing prone to resonance or collision with other equipment, and thus generating a large amount of noise, which greatly affects the work of the staff.

[0006] To achieve the above purpose, the present invention provides a vibration isolation structure for a dry-type transformer, including a dry-type transformer body, a vibration isolation box body, and a vibration isolation component. The dry-type transformer body is arranged inside the vibration isolation box body;

[0007] The vibration isolation component includes two limit sliders and limit buffer rods. The vibration isolation box body has two first chutes. The two limit sliders are respectively slidably connected to the corresponding first chutes. The two limit sliders are symmetrically arranged on both sides of the dry-type transformer body. One end of the limit buffer rod is fixedly connected to the upper part of the dry-type transformer body;

[0008] The vibration isolation component further includes a fixing unit, the fixing unit includes two fixing bolts and a mounting cover plate, the two limiting sliders are respectively connected to both sides of the dry-type transformer body through the corresponding fixing bolts, and the mounting cover plate is arranged to be bolted to the upper part of the vibration isolation box body;

[0009] The vibration isolation component further includes a vibration absorption component, the vibration absorption component includes two mounting blocks and two buffer pads, the two mounting blocks are both fixedly connected to the dry-type transformer body and symmetrically distributed on both sides of the dry-type transformer body, the two buffer pads are respectively arranged on one side of the corresponding mounting block, the fixing bolts sequentially penetrate through the limiting sliders and the buffer pads, the mounting blocks have threaded holes, and the fixing bolts are adapted to the threaded holes.

[0010] Wherein, the vibration isolation component further includes an upper buffer unit, the upper buffer unit includes two fixing plates, two first buffer damping rods, a first connection block, an upper buffer rubber block, a bracket and a first spring, the two fixing plates are both fixedly connected to the mounting cover plate and symmetrically arranged under the mounting cover plate, one ends of the two first buffer damping rods are respectively rotatably connected to the corresponding fixing plates, the other ends of the two first buffer damping rods are both rotatably connected to the first connection block, the other end of the limiting buffer rod is fixedly connected to the lower part of the first connection block, the upper buffer rubber block is arranged under the mounting cover plate, the upper buffer rubber block is located above the first connection block, the bracket is arranged under the mounting cover plate, the bracket is sleeved outside the limiting buffer rod, the limiting buffer rod is slidably connected to the bracket, two ends of the first spring are respectively movably connected to the lower part of the first connection block and the inner bottom wall of the bracket, and the first spring is sleeved outside the limiting buffer rod.

[0011] Wherein, the vibration isolation component further includes two lower buffer units, and the two lower buffer units are symmetrically distributed at the inner bottom of the vibration isolation box body;

[0012] The lower buffer unit includes a second connection block, a second buffer damping rod, a second spring, a connecting rod, a support block and a sliding plate, two ends of the buffer damping rod are respectively fixedly connected to the inner side wall of the vibration isolation box body and one side of the second connection block, two ends of the connecting rod are respectively rotatably connected to the other side of the second connection block and the support block, the dry-type transformer body is placed above the support block, the sliding plate is fixedly connected to the second connection block and is located under the second connection block, the vibration isolation box body further has a second sliding groove, and the sliding plate is slidably connected to the second sliding groove.

[0013] Among them, the vibration isolation component further includes a plurality of expansion sliders and a plurality of middle buffer units, the vibration isolation box body further has a plurality of expansion chutes, the plurality of expansion chutes are respectively slidably connected to the corresponding first chutes, and the plurality of middle buffer units are respectively arranged inside the corresponding expansion chutes.

[0014] Among them, the middle buffer unit includes a third buffer damping rod and a third spring. Two ends of the third buffer damping rod are respectively fixedly connected to the inner wall of the expansion chute and the expansion slider, two ends of the third spring are respectively movably connected to the inner wall of the expansion chute and the expansion slider, and the third spring is sleeved outside the third buffer damping rod.

[0015] For a vibration isolation structure of a dry-type transformer according to the present invention, by installing the dry-type transformer body inside the vibration isolation box body, when the dry-type transformer body vibrates, it drives the limit slider to slide in the first chute, and at the same time the limit buffer rod moves up and down above the dry-type transformer body, playing a buffering role while guiding and limiting the vibration direction. Through the above structural settings, the vibration direction of the dry-type transformer body is restricted, avoiding a large amount of vibration noise caused by vibration in all directions, thereby improving the use stability and vibration isolation effect. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description in the embodiments or the prior art.

[0017] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0018] Figure 2 It is a cross-sectional view of the whole of the present invention.

[0019] Figure 3 It is of the present invention Figure 2 Cross-sectional view taken along line A-A.

[0020] Figure 4 It is of the present invention Figure 2 Cross-sectional view taken along line B-B.

[0021] Figure 5 It is of the present invention Figure 1 Local enlarged view at C.

[0022] Figure 6 It is of the present invention Figure 2 Local enlarged view at D.

[0023] Figure 7 It is of the present invention Figure 2 Local enlarged view at E.

[0024] 1 - Dry-type transformer body, 2 - Vibration isolation box, 3 - Limit slider, 4 - Limit buffer rod, 5 - First chute, 6 - Fixed bolt, 7 - Installation cover plate, 8 - Installation block, 9 - Buffer pad, 10 - Threaded hole, 11 - Fixed plate, 12 - First buffer damping rod, 13 - First connecting block, 14 - Upper buffer rubber block, 15 - Bracket, 16 - First spring, 17 - Second connecting block, 18 - Second buffer damping rod, 19 - Second spring, 20 - Connecting rod, 21 - Support block, 22 - Slide plate, 23 - Second chute, 24 - Expansion slider, 25 - Expansion chute, 26 - Third buffer damping rod, 27 - Third spring. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0026] Please refer to Figures 1 to 7 , wherein, Figure 1 is the overall structural schematic diagram of the present invention, Figure 2 is the overall sectional view of the present invention, Figure 3 is the sectional view taken along line A - A of Figure 2 of the present invention, Figure 4 is the sectional view taken along line B - B of Figure 2 of the present invention, Figure 5 is the sectional view taken along line C - C of Figure 1 of the present invention, Figure 6 is the enlarged view of the partial structure at D of Figure 2 of the present invention, Figure 7 is the enlarged view of the partial structure at E of Figure 2 of the present invention.

[0027] The present invention provides a vibration isolation structure for a dry-type transformer, comprising a dry-type transformer body 1, a vibration isolation box 2 and a vibration isolation assembly. The vibration isolation assembly includes two limit sliders 3 and limit buffer rods 4. The vibration isolation box 2 has two first chutes 5. The vibration isolation assembly further includes a fixing unit, which includes two fixing bolts 6 and a mounting cover plate 7. The vibration isolation assembly further includes a vibration absorption component, which includes two mounting blocks 8 and two buffer pads 9. The vibration isolation assembly further includes an upper buffer unit, which includes two fixing plates 11, two first buffer damping rods 12, a first connecting block 13, an upper buffer rubber block 14, a bracket 15 and a first spring 16. The vibration isolation assembly further includes two lower buffer units, which include a second connecting block 17, a second buffer damping rod 18, a second spring 19, a connecting rod 20, a support block 21 and a sliding plate 22. The vibration isolation assembly further includes a plurality of expansion sliders 24 and a plurality of middle buffer units, which include a third buffer damping rod 26 and a third spring 27.

[0028] Among them, the dry-type transformer body 1 is arranged inside the vibration isolation box 2. The vibration isolation box 2 has two first chutes 5. The two limit sliders 3 are respectively slidably connected to the corresponding first chutes 5. The two limit sliders 3 are symmetrically arranged on both sides of the dry-type transformer body 1. One end of the limit buffer rod 4 is fixedly connected to the upper part of the dry-type transformer body 1. By installing the dry-type transformer body 1 inside the vibration isolation box 2, when the dry-type transformer body 1 vibrates, it drives the limit sliders 3 to slide in the first chutes 5. At the same time, the limit buffer rod 4 moves up and down above the dry-type transformer body 1, playing a buffering role and guiding the vibration direction for limiting. Thus, the vibration direction of the dry-type transformer body 1 is restricted, avoiding a large amount of vibration noise caused by vibration in all directions, and further improving the use stability and vibration isolation effect.

[0029] Secondly, the two limiting sliders 3 are respectively connected to both sides of the dry-type transformer body 1 through the corresponding fixing bolts 6, and the installation cover plate 7 is arranged to be bolt-connected above the vibration isolation box body 2; the two installation blocks 8 are both fixedly connected to the dry-type transformer body 1 and symmetrically distributed on both sides of the dry-type transformer body 1. The two buffer pads 9 are respectively arranged on one side of the corresponding installation block 8. The fixing bolt 6 sequentially penetrates through the limiting slider 3 and the buffer pad 9. The installation block 8 has a threaded hole 10, and the fixing bolt 6 is adapted to the threaded hole 10. The buffer pad can absorb the lateral vibration of the dry-type transformer body, reduce the amplitude and frequency of the lateral vibration, and make it vibrate up and down more smoothly. The fixing bolt 6 can install and fix the dry-type transformer body 1 on the limiting slider 3. The upper buffer unit and the dry-type transformer body 1 are installed on the installation cover plate 7. Therefore, the dry-type transformer body 1 can be disassembled and maintained by disassembling and installing the installation cover plate 7.

[0030] Meanwhile, the two fixing plates 11 are both fixedly connected to the installation cover plate 7 and symmetrically arranged below the installation cover plate 7. One ends of the two first buffer damping rods 12 are respectively rotatably connected to the corresponding fixing plates 11, and the other ends of the two first buffer damping rods 12 are both rotatably connected to the first connection block 13. The other end of the limit buffer rod 4 is fixedly connected to the lower part of the first connection block 13. The upper buffer rubber block 14 is arranged below the installation cover plate 7, and the upper buffer rubber block 14 is located above the first connection block 13. The bracket 15 is arranged below the installation cover plate 7, and the bracket 15 is sleeved outside the limit buffer rod 4. The limit buffer rod 4 is slidably connected to the bracket 15. Both ends of the first spring 16 are movably connected to the lower part of the first connection block 13 and the inner bottom wall of the bracket 15, and the first spring 16 is sleeved outside the limit buffer rod 4. When the dry-type transformer body moves upward due to excessive vibration, it drives the first connection block to move upward and collide with the upper buffer rubber block 14, which can play a role in buffering and vibration reduction, and at the same time prevent the first connection block from moving upward excessively. The fixing plate 11 supports the first buffer damping rod 12. When the dry-type transformer body 1 vibrates, it drives the limit buffer rod 4 to move up and down in the bracket 15. Through the connection of the first connection block 13, it drives the first buffer damping rod 12 to stretch and contract, achieving the effect of buffering and vibration reduction. At the same time, the first spring 16 rebounds and drives the first connection block 13 to move, enabling the limit buffer rod 4 to reset. Under the slowing-down effect of the first buffer damping rod 12, there will be no situation of repeated rebounds.

[0031] Moreover, the two lower buffer units are symmetrically distributed at the inner bottom of the vibration isolation box body 2; both ends of the buffer damping rod are fixedly connected to the inner side wall of the vibration isolation box body 2 and one side of the second connection block 17 respectively, both ends of the connecting rod 20 are rotatably connected to the other side of the second connection block 17 and the support block 21 respectively, the dry-type transformer body 1 is placed above the support block 21, the sliding plate 22 is fixedly connected to the second connection block 17 and is located below the second connection block 17, and the vibration isolation box body 2 further has a second sliding groove 23, and the sliding plate 22 is slidably connected to the second sliding groove 23. When the dry-type transformer body 1 moves downward due to vibration, it pushes the connecting rod 20 to move through the support block 21, drives the second buffer damping rod 18 to contract through the connection of the second connection block 17, and at the same time the sliding plate 22 slides in the second sliding groove 23 to improve stability. When the dry-type transformer body 1 moves upward, the second spring 19 rebounds, drives the second connection block 17 to rebound, and enables the support block 21 to move upward and reset.

[0032] Then, the vibration isolation box body 2 further has a plurality of expansion sliding grooves 25, the plurality of expansion sliding grooves 25 are respectively slidably connected to the corresponding first sliding grooves 5, and the plurality of middle buffer units are respectively arranged inside the corresponding expansion sliding grooves 25. During the sliding process of the limit slider 3, the expansion slider 24 slides in the expansion sliding groove 25 to improve the sliding stability, and the middle buffer unit can provide a buffering effect on the limit slider 3 to avoid excessive up-and-down vibration.

[0033] Finally, both ends of the third buffer damping rod 26 are fixedly connected to the inner wall of the expansion sliding groove 25 and the expansion slider 24 respectively, both ends of the third spring 27 are movably connected to the inner wall of the expansion sliding groove 25 and the expansion slider 24 respectively, and the third spring 27 is sleeved outside the third buffer damping rod 26. When the dry-type transformer body 1 vibrates up and down, the limit slider 3 drives the expansion slider 24 to slide in the expansion sliding groove 25. At this time, the third buffer damping rod 26 plays a buffering role, and the third spring 27 drives the expansion slider 24 to reset. At the same time, under the action of the third buffer damping rod 26, it can play a role in slowing down during the rebound to avoid the dry-type transformer body 1 from being vibrated more severely due to rapid rebound.

[0034] When using the vibration isolation structure of the dry-type transformer of the present invention, by installing the dry-type transformer body 1 inside the vibration isolation box body 2, when the dry-type transformer body 1 vibrates, the limit slider 3 drives the expansion slider 24 to slide in the expansion chute 25. At this time, the third buffer damping rod 26 plays a buffering role, and the third spring 27 drives the expansion slider 24 to reset. At the same time, under the action of the third buffer damping rod 26, it can play a slowing-down role during the rebound to avoid the dry-type transformer body 1 vibrating more violently due to rapid rebound; when the dry-type transformer body 1 vibrates, it drives the limit buffer rod 4 to move up and down in the bracket 15. Through the connection of the first connecting block 13, it drives the first buffer damping rod 12 to expand and contract, achieving the effect of buffering and vibration reduction. At the same time, the first spring 16 rebounds, driving the first connecting block 13 to move, enabling the limit buffer rod 4 to reset. Under the slowing-down effect of the first buffer damping rod 12, there will be no repeated rebound situation; at the same time, when the dry-type transformer body 1 moves downward due to vibration, through the support block 21, it pushes the connecting rod 20 to move. Through the connection of the second connecting block 17, it drives the second buffer damping rod 18 to contract. At the same time, the sliding plate 22 slides in the second chute 23 to improve stability. When the dry-type transformer body 1 moves upward, the second spring 19 rebounds, driving the second connecting block 17 to rebound, causing the support block 21 to move upward and reset; through the above structural settings, the vibration direction of the dry-type transformer body 1 is restricted, avoiding a large amount of vibration noise caused by vibration in all directions, thereby improving the use stability and vibration isolation effect.

[0035] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand the entire or partial processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A dry-type transformer vibration isolation structure, comprising a dry-type transformer body and a vibration isolation box, wherein the dry-type transformer body is arranged inside the vibration isolation box, characterized in that: Also included is a vibration isolation assembly; The vibration isolation assembly includes two limit sliders and a limit buffer rod, the vibration isolation box has two first slide grooves, the two limit sliders are respectively slidably connected to the corresponding first slide grooves, the two limit sliders are symmetrically arranged on both sides of the dry-type transformer body, and one end of the limit buffer rod is fixedly connected to the upper side of the dry-type transformer body; The vibration isolation assembly further includes a fixing unit, which includes two fixing bolts and a mounting cover plate, the two limit sliders are respectively connected to the two sides of the dry-type transformer body through the corresponding fixing bolts, and the mounting cover plate is arranged to be connected to the upper bolts of the vibration isolation box body; The vibration isolation assembly further includes a vibration absorbing component, which includes two mounting blocks and two buffer pads. The two mounting blocks are fixedly connected to the dry-type transformer body and symmetrically distributed on both sides of the dry-type transformer body. The two buffer pads are respectively arranged on one side of the corresponding mounting block. The fixing bolts sequentially penetrate the limit slider and the buffer pads. The mounting block has a threaded hole, and the fixing bolts and the threaded holes are adapted to each other. The vibration isolation assembly also includes an upper buffer unit, which includes two fixed plates, two first buffer damping rods, a first connecting block, an upper buffer rubber block, a bracket and a first spring. The two fixed plates are fixedly connected to the mounting cover and are symmetrically arranged below the mounting cover. One end of the two first buffer damping rods is rotatably connected to the corresponding fixed plates respectively, and the other ends of the two first buffer damping rods are rotatably connected to the first connecting block. The other end of the limiting buffer rod is fixedly connected to the bottom of the first connecting block. The upper buffer rubber block is arranged below the mounting cover, and the upper buffer rubber block is located above the first connecting block. The bracket is arranged below the mounting cover, and the bracket is sleeved on the outside of the limiting buffer rod. The limiting buffer rod is slidably connected to the bracket, and the two ends of the first spring are movably connected to the bottom of the first connecting block and the inner bottom wall of the bracket respectively, and the first spring is sleeved on the outside of the limiting buffer rod.

2. The dry-type transformer vibration isolation structure according to claim 1, characterized in that: The vibration isolation assembly further includes two lower buffer units, which are symmetrically distributed on the inner bottom of the vibration isolation box; The lower buffer unit includes a second connecting block, a second buffer damping rod, a second spring, a connecting rod, a support block and a slide plate. The two ends of the buffer damping rod are respectively fixedly connected to the inner side wall of the vibration isolation box and one side of the second connecting block. The two ends of the connecting rod are respectively rotatably connected to the other side of the second connecting block and the support block. The dry-type transformer body is placed above the support block. The slide plate is fixedly connected to the second connecting block and is located below the second connecting block. The vibration isolation box also has a second slide groove, and the slide plate is slidably connected to the second slide groove.

3. The dry-type transformer vibration isolation structure according to claim 2, characterized in that: The vibration isolation assembly also includes multiple expansion sliders and multiple middle buffer units. The vibration isolation box also has multiple expansion slots. The multiple expansion slots are respectively slidably connected to the corresponding first slots, and the multiple middle buffer units are respectively arranged inside the corresponding expansion slots.

4. The dry-type transformer vibration isolation structure according to claim 3, characterized in that: The middle buffer unit includes a third buffer damping rod and a third spring. The two ends of the third buffer damping rod are respectively fixedly connected to the inner wall of the expansion slide groove and the expansion slider. The two ends of the third spring are respectively movably connected to the inner wall of the expansion slide groove and the expansion slider. The third spring is sleeved on the outside of the third buffer damping rod.

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