Vibration isolation structure of dry-type transformer

Abstract

The invention relates to the technical field of transformer vibration isolation, in particular to a dry-type transformer vibration isolation structure which comprises a dry-type transformer body, a vibration isolation box body and a vibration isolation assembly, the dry-type transformer body is arranged in the vibration isolation box body, the vibration isolation assembly comprises two limiting sliding blocks and a limiting buffer rod, the vibration isolation box body is provided with two first sliding grooves, and the limiting buffer rod is arranged in the vibration isolation box body. The two limiting sliding blocks are slidably connected with the corresponding first sliding grooves correspondingly, the two limiting sliding blocks are symmetrically arranged on the two sides of the dry-type transformer body, and the dry-type transformer body is installed in the vibration isolation box body, so that when the dry-type transformer body vibrates, the limiting sliding blocks are driven to slide in the first sliding grooves; and meanwhile, the limiting buffer rod is located above the dry-type transformer body to move up and down, the vibration direction is limited and guided while the buffering effect is achieved, and therefore the vibration direction of the dry-type transformer body is limited, a large amount of vibration noise caused by vibration around is avoided, and then the use stability and the vibration isolation effect are improved.

Description

Technical Field

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

[0002] Dry-type transformers have the advantages of strong short-circuit resistance, low maintenance workload, high operating efficiency, small size and low noise. Therefore, they are often used in places with high requirements for fire protection and explosion protection. However, dry-type transformers will generate a lot of vibration when working. The transmission of vibration causes the dry-type transformer to vibrate and contact with surrounding equipment, resulting in damage to the equipment and the transformer itself.

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

[0004] However, in the above-mentioned prior art, when the dry-type transformer is vibration-reduced, although it is vibration-isolated, since there is no restriction on the vibration direction, the transformer will vibrate randomly, affecting the stability of use, making the transformer shell prone to resonance or collision with other equipment, thereby generating a lot 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 dry-type transformer vibration isolation structure, which solves the problem that in the prior art, although the dry-type transformer is isolated for vibration reduction, the vibration direction is not restricted, resulting in the transformer vibrating randomly, affecting the stability of use, making the transformer shell prone to resonance or collision with other equipment, thereby generating a lot of noise, which greatly affects the work of the staff.

[0006] To achieve the above object, the present invention provides a dry-type transformer vibration isolation structure, comprising a dry-type transformer body, a vibration isolation box and a vibration isolation assembly, wherein the dry-type transformer body is arranged inside the vibration isolation box;

[0007] 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. One end of the limit buffer rod is fixedly connected to the top of the dry-type transformer body.

[0008] Among them, the vibration isolation assembly also 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.

[0009] Among them, the vibration isolation assembly also 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 are 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 bolt passes through the limiting slider and the buffer pad in sequence. The mounting block has a threaded hole, and the fixing bolt and the threaded hole are adapted to each other.

[0010] In which, 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 plate and are symmetrically arranged below the mounting cover plate, one end of the two first buffer damping rods are rotatably connected to the corresponding fixed plates respectively, 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 plate, the upper buffer rubber block is located above the first connecting block, the bracket is arranged below the mounting cover plate, the bracket is sleeved on the outside of the limiting buffer rod, the limiting buffer rod is slidably connected to the bracket, the two ends of the first spring are respectively movably connected to the bottom of the first connecting block and the inner bottom wall of the bracket, and the first spring is sleeved on the outside of the limiting buffer rod.

[0011] Wherein, the vibration isolation assembly further comprises two lower buffer units, and the two lower buffer units are symmetrically distributed on the inner bottom of the vibration isolation box;

[0012] 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.

[0013] Among them, the vibration isolation assembly also includes multiple expansion sliders and multiple middle buffer units, and the vibration isolation box also has multiple expansion slide grooves, and the multiple expansion slide grooves are respectively slidably connected to the corresponding first slide grooves, and the multiple middle buffer units are respectively arranged inside the corresponding expansion slide grooves.

[0014] Among them, 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, and the third spring is sleeved on the outside of the third buffer damping rod.

[0015] A dry-type transformer vibration isolation structure of the present invention is achieved by installing the dry-type transformer body inside the vibration isolation box. When the dry-type transformer body vibrates, the limit slider is driven to slide in the first slide groove. At the same time, the limit buffer rod is located above the dry-type transformer body and moves up and down, playing a buffering role while limiting and guiding the vibration direction. Through the above-mentioned structural setting, the vibration direction of the dry-type transformer body is limited to avoid vibrations in all directions and cause a large amount of vibration noise, thereby improving the use stability and vibration isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

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

[0019] Figure 3 The present invention Figure 2 AA line section view.

[0020] Figure 4 The present invention Figure 2 BB line cross-sectional view.

[0021] Figure 5 The present invention Figure 1 Enlarged view of the local structure at location C.

[0022] Figure 6 The present invention Figure 2 Enlarged view of the local structure at D.

[0023] Figure 7 The present invention Figure 2 Enlarged view of the local structure at E.

[0024] 1-dry-type transformer body, 2-vibration isolation box, 3-limit slider, 4-limit buffer rod, 5-first slide groove, 6-fixing bolt, 7-installation cover, 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 slide groove, 24-expansion slider, 25-expansion slide groove, 26-third buffer damping rod, 27-third spring. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0026] See also Figures 1 to 7 ,in, Figure 1 It is a schematic diagram of the overall structure of the present invention, Figure 2 is a cross-sectional view of the whole of the present invention, Figure 3 The present invention Figure 2 AA line section view, Figure 4 The present invention Figure 2 BB line cross-sectional view, Figure 5 The present invention Figure 1 The enlarged view of the local structure at C. Figure 6 The present invention Figure 2 The enlarged view of the local structure at D, Figure 7 The present invention Figure 2 Enlarged view of the local structure at E.

[0027] The present invention provides a dry-type transformer vibration isolation structure, comprising a dry-type transformer body 1, a vibration isolation box 2 and a vibration isolation component, wherein the vibration isolation component comprises two limit sliders 3 and a limit buffer rod 4, the vibration isolation box 2 has two first slide grooves 5, the vibration isolation component also comprises a fixing unit, the fixing unit comprises two fixing bolts 6 and a mounting cover plate 7, the vibration isolation component also comprises a vibration absorbing component, the vibration absorbing component comprises two mounting blocks 8 and two buffer pads 9, the vibration isolation component also comprises an upper buffer unit, the upper buffer unit comprises 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 component also comprises two lower buffer units, the lower buffer unit comprises a second connecting block 17, a second buffer damping rod 18, a second spring 19, a connecting rod 20, a supporting block 21 and a slide plate 22, the vibration isolation component also comprises a plurality of expansion sliders 24 and a plurality of middle buffer units, the middle buffer unit comprises 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, and the vibration isolation box 2 has two first slide grooves 5, and the two limit sliders 3 are respectively slidably connected to the corresponding first slide grooves 5, and the two limit sliders 3 are symmetrically arranged on both sides of the dry-type transformer body 1, and one end of the limit buffer rod 4 is fixedly connected to the top 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, the limit slider 3 is driven to slide in the first slide groove 5, and at the same time, the limit buffer rod 4 is located above the dry-type transformer body 1 and moves up and down, playing a buffering role while limiting and guiding the vibration direction, thereby limiting the vibration direction of the dry-type transformer body 1, avoiding vibrations in all directions and causing a large amount of vibration noise, thereby improving the use stability and vibration isolation effect.

[0029] Secondly, the two limit sliders 3 are connected to the two sides of the dry-type transformer body 1 through the corresponding fixing bolts 6, and the installation cover 7 is arranged on the upper bolt connection with the vibration isolation box 2; the two installation blocks 8 are fixedly connected to the dry-type transformer body 1 and symmetrically distributed on the two sides of the dry-type transformer body 1, and the two buffer pads 9 are respectively arranged on one side of the corresponding installation block 8, and the fixing bolts 6 pass through the limit slider 3 and the buffer pad 9 in sequence, and the installation block 8 has a threaded hole 10, and the fixing bolts 6 and the threaded hole 10 are adapted to each other. 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 bolts 6 can install and fix the dry-type transformer body 1 on the limit slider 3, and the upper buffer unit and the dry-type transformer body 1 are installed on the installation cover 7, so the dry-type transformer body 1 can be disassembled and maintained by disassembling and installing the installation cover 7.

[0030] At the same time, the two fixing plates 11 are fixedly connected to the mounting cover plate 7 and are symmetrically arranged below the mounting cover plate 7. One end of the two first buffer damping rods 12 are respectively rotatably connected to the corresponding fixed plates 11, and the other ends of the two first buffer damping rods 12 are rotatably connected to the first connecting block 13. The other end of the limiting buffer rod 4 is fixedly connected to the bottom of the first connecting block 13. The upper buffer rubber block 14 is arranged below the mounting cover plate 7, and the upper buffer rubber block 14 is located above the first connecting block 13. The bracket 15 is arranged below the mounting cover plate 7, and the bracket 15 is sleeved on the outside of the limiting buffer rod 4. The limiting buffer rod 4 is slidably connected to the bracket 15. The two ends of the first spring 16 are respectively movably connected to the bottom of the first connecting block 13 and the inner bottom wall of the bracket 15, and the first spring 16 is sleeved on the outside of the limiting buffer rod 4. When the dry-type transformer body moves upward due to excessive vibration, the first connecting block is driven 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 connecting block from moving upward excessively. The fixed plate 11 supports the first buffer damping rod 12. When the dry-type transformer body 1 vibrates, the limit buffer rod 4 is driven to move up and down in the bracket 15. Through the connection of the first connecting block 13, the first buffer damping rod 12 is driven to extend and retract, which plays a role in buffering and vibration reduction. At the same time, the first spring 16 rebounds and drives the first connecting block 13 to move, so that the limit buffer rod 4 can be reset. Under the mitigation effect of the first buffer damping rod 12, repeated rebound will not occur.

[0031] In addition, the two lower buffer units are symmetrically distributed on the inner bottom of the vibration isolation box 2; the two ends of the buffer damping rod are respectively fixedly connected to the inner side wall of the vibration isolation box 2 and one side of the second connecting block 17, the two ends of the connecting rod 20 are respectively rotatably connected to the other side of the second connecting block 17 and the support block 21, the dry-type transformer body 1 is placed above the support block 21, the slide plate 22 is fixedly connected to the second connecting block 17 and is located below the second connecting block 17, and the vibration isolation box 2 also has a second slide groove 23, and the slide plate 22 is slidably connected to the second slide groove 23. When the dry-type transformer body 1 moves downward due to vibration, the connecting rod 20 is pushed to move through the support block 21, and the second buffer damping rod 18 is driven to shrink through the connection of the second connecting block 17, and the slide plate 22 slides in the second slide groove 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, so that the support block 21 moves upward and resets.

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

[0033] Finally, the two ends of the third buffer damping rod 26 are respectively fixedly connected to the inner wall of the expansion slot 25 and the expansion slider 24, and the two ends of the third spring 27 are respectively movably connected to the inner wall of the expansion slot 25 and the expansion slider 24, and the third spring 27 is sleeved on the outside of 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 slot 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 role during rebound, so as to avoid the rapid rebound causing the dry-type transformer body 1 to intensify vibration.

[0034] When using the dry-type transformer vibration isolation structure of the present invention, by installing the dry-type transformer body 1 inside the vibration isolation box 2, when the dry-type transformer body 1 vibrates, the limit slider 3 drives the expansion slider 24 to slide in the expansion slide 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 mitigating role during rebound, avoiding rapid rebound causing the dry-type transformer body 1 to intensify vibration; when the dry-type transformer body 1 vibrates, it drives the limit buffer rod 4 to move up and down in the bracket 15, and through the connection of the first connecting block 13, drives the first buffer damping rod 12 to extend and retract, thereby playing a buffering and vibration reduction effect, and at the same time, the first spring 16 rebounds , driving the first connecting block 13 to move, so that the limit buffer rod 4 can be reset. Under the mitigation effect of the first buffer damping rod 12, repeated rebound will not occur; at the same time, when the dry-type transformer body 1 moves downward due to vibration, the connecting rod 20 is pushed to move through the supporting block 21, and the second buffer damping rod 18 is driven to shrink through the connection of the second connecting block 17. At the same time, the slide plate 22 slides in the second slide groove 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, so that the supporting block 21 moves upward and resets; through the above-mentioned structural setting, the vibration direction of the dry-type transformer body 1 is limited to avoid a large amount of vibration noise caused by vibration everywhere, thereby improving the stability of use and the vibration isolation effect.

[0035] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still 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. One end of the limit buffer rod is fixedly connected to the top of the dry-type transformer body.

2. The dry-type transformer vibration isolation structure according to claim 1, characterized in that: The vibration isolation assembly also 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 on the upper bolt connection of the vibration isolation box body.

3. The dry-type transformer vibration isolation structure according to claim 2, characterized in that: The vibration isolation assembly also 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 are 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 bolt passes through the limiting slider and the buffer pad in sequence. The mounting block has a threaded hole, and the fixing bolt and the threaded hole are adapted to each other.

4. The dry-type transformer vibration isolation structure according to claim 3, characterized in that: 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.

5. The dry-type transformer vibration isolation structure according to claim 4, 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.

6. The dry-type transformer vibration isolation structure according to claim 5, 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.

7. The dry-type transformer vibration isolation structure according to claim 6, 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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