Fixing device for large transformer coil end insulator
By using the first spring and clamping to adjust the tension of the insulator in the fixing device of the end of the large transformer coil, the tension of the insulator is adjusted and the vibration impact force is absorbed through the buffer assembly, the problems of excessive tightness of the insulator fixation and vibration damage are solved. , achieves the effect of improving the service life and insulation performance of insulating parts.
Patent Information
- Application Number
- CN202421195489.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The fixing device of the insulating parts at the end of the existing large transformer coil is prone to damage the insulating parts during the fixing process, and the vibration and impact during the operation of the transformer increase the risk of damage to the insulating parts and affects the insulation performance.
The first spring and the clamp are used to provide support through the buffer assembly, adjust the tension between the clamp and the insulator, absorb the impact force caused by vibration, reduce the risk of damage to the insulator, and enhance the insulation performance.
It effectively improves the service life of insulators, reduces the risk of insulator damage caused by vibration, and enhances insulation performance.
Smart Images
Figure CN222319956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for insulating pieces at the ends of large transformer coils. Background Art
[0002] The fixing device of the insulation part at the end of the large transformer coil refers to the device used to fix the insulation part at the end of the transformer coil. These fixing devices are usually designed to ensure that the insulation part can be accurately and firmly fixed on the coil to ensure the normal operation and safety of the equipment.
[0003] At present, when fixing the insulating parts at the ends of large transformer coils, the fixing device needs to fix the insulating parts firmly, which leads to over-tightening, causing damage to the insulating parts and reducing their service life. When the transformer is in operation, vibration and impact may be generated, causing the insulating parts to be subjected to additional forces, increasing the risk of damage, thereby affecting the insulation performance. Therefore, the present application proposes a fixing device for the insulating parts at the ends of large transformer coils. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a fixing device for an insulating member at the end of a large transformer coil. Through the cooperation of a first spring and a clamping block, the tension between the clamping block and the insulating member is adjusted to improve the service life of the insulating member. The buffer component provides supporting force to absorb the impact force caused by vibration, reduce the risk of damage to the insulating member caused by transformer vibration, and achieve the effect of enhancing the insulation performance of the insulating member.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A fixing device for insulating parts at the end of a large transformer coil comprises a base plate, the inner walls of the four corners of the base plate are threadedly connected with bolts, the left and right sides of the top of the base plate are fixedly connected with limiting columns, the base plate is connected to a support plate through a buffer assembly, the inner walls of the left and right ends of the support plate are slidably connected to the outer walls of the limiting columns on both sides, the top of the support plate is fixedly connected with a support column, the upper front end of the support column is fixedly connected with a fixing seat, the inner walls of the upper and lower ends of the fixing seat are provided with limiting grooves, the inner wall of the fixing seat is fixedly connected with a threaded rod, the outer walls of the left and right ends of the threaded rod are threadedly connected with screw sleeves, the screw sleeves on both sides are connected to the fixing blocks through slides, and the fixing blocks on both sides are connected to the clamping blocks through multiple first springs.
[0007] Furthermore, the opposite ends of the slides on both sides are rotatably connected to the opposite ends of the screw sleeves on both sides, the front ends of the slides on both sides are fixedly connected to the rear ends of the fixed blocks on both sides, the upper and lower outer walls of the slides on both sides are slidably connected to the inner walls of the limit grooves, and the inner walls of the slides on both sides are arranged on the outer walls of the threaded rods.
[0008] Furthermore, the opposite ends of the first springs on both sides are fixedly connected to the inner walls of the clamping blocks on both sides at the opposite ends, and the ends of the first springs on both sides away from the clamping blocks are fixedly connected to the inner wall of the fixing block.
[0009] Furthermore, the buffer assembly includes fixed columns fixedly connected on both the left and right sides of the bottom end of the support plate and a connecting plate fixedly connected on both the front and rear sides of the bottom end of the support plate, the middle outer walls of the fixed columns on both sides are slidably connected with connecting blocks, the connecting blocks on both sides are connected to the fixed cylinder through connecting rods, and the connecting blocks on both sides are connected to the bottom plate through a second spring.
[0010] Furthermore, the opposite ends of the connecting rods on the front and rear sides are rotatably connected to the front and rear inner walls of the connecting block, and the ends of the connecting rods on both sides away from the connecting block are slidably connected to the inner wall of the fixing tube.
[0011] Furthermore, the top ends of the second springs on both sides are fixedly connected to the bottom ends of the connecting blocks on both sides, the ends of the second springs on both sides away from the connecting blocks are fixedly connected to the left and right sides of the top of the bottom plate, and the second springs on both sides are arranged on the outer wall of the bottom end of the fixed column.
[0012] Furthermore, the opposite ends of the fixed cylinders on the front and rear sides are rotatably connected to the inner walls of the bottom ends of the connecting plates on both sides, the fixed cylinders on both sides are connected to the fixed plates through a third spring, and the opposite ends of the fixed plates on both sides are fixedly connected to the ends of the connecting rods on both sides away from the connecting blocks.
[0013] Furthermore, one end of the third spring is fixedly connected to the inner wall of the fixed cylinder, the other end of the third spring is fixedly connected to the outer wall of the fixed disk, and the third spring is arranged on the outer wall of the connecting rod.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, the slide plate, the fixing block and the clamping block are driven to move together by rotating the screw sleeves on both sides, so that the size of the insulating part is moved and fixedly clamped. At the same time, the tension between the clamping block and the insulating part is adjusted through the elastic action of the first spring to avoid over-tightening and damage to the insulating part, thereby achieving the effect of increasing the service life of the insulating part.
[0016] 2. In the utility model, when the transformer vibrates during operation, the support plate drives the fixing column to rise and fall in the connecting block and squeezes the second spring. The elastic action of the second spring provides the support plate with a supporting force so that it can quickly return to its original position. At the same time, the connecting rod drives the fixing plate to slide in the fixing cylinder and squeezes the third spring. The elastic action of the third spring absorbs the impact force caused by the vibration, reduces the risk of damage to the insulating parts caused by the vibration of the transformer, and achieves the effect of enhancing the insulation performance of the insulating parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional diagram of a fixing device for an insulating member at the end of a large transformer coil proposed by the utility model;
[0018] Figure 2 This is a partial structural schematic diagram of a fixing device for an insulating member at the end of a large transformer coil proposed by the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of a buffer assembly of a fixing device for an insulating member at the end of a large transformer coil proposed by the utility model;
[0020] Figure 4 The utility model discloses a schematic diagram of the internal structure of a fixing cylinder of a fixing device for an insulating member at the end of a large transformer coil.
[0021] Legend:
[0022] 1. Bottom plate; 2. Support plate; 3. Support column; 4. Fixed seat; 5. Limiting groove; 6. Threaded rod; 7. Screw sleeve; 8. Slide plate; 9. Fixed block; 10. First spring; 11. Clamping block; 12. Limiting column; 13. Connecting plate; 14. Fixed column; 15. Connecting block; 16. Second spring; 17. Fixed cylinder; 18. Connecting rod; 19. Fixed disk; 20. Third spring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Reference Figure 1-4The utility model provides an embodiment: a fixing device for an insulating part of a large transformer coil end, comprising a bottom plate 1, the inner walls of the four corners of the bottom plate 1 are threadedly connected with bolts, the top and left sides of the bottom plate 1 are fixedly connected with limiting columns 12, a support plate 2 is arranged at the top of the bottom plate 1, the inner walls of the left and right ends of the support plate 2 are slidably connected to the outer walls of the limiting columns 12 on both sides, the top of the support plate 2 is fixedly connected with a support column 3, the upper front end of the support column 3 is fixedly connected with a fixing seat 4, the inner walls of the upper and lower ends of the fixing seat 4 are provided with limiting grooves 5, the inner wall of the fixing seat 4 is fixedly connected with a threaded rod 6, and the outer walls of the left and right ends of the threaded rod 6 are threadedly connected A screw sleeve 7 is connected, and the screw sleeves 7 on both sides are connected to the fixed blocks 9 through slides 8. The fixed blocks 9 on both sides are connected to the clamping blocks 11 through multiple first springs 10. The opposite ends of the slides 8 on both sides are rotatably connected to the opposite ends of the screw sleeves 7 on both sides. The front ends of the slides 8 on both sides are fixedly connected to the rear ends of the fixed blocks 9 on both sides. The upper and lower outer walls of the slides 8 on both sides are slidably connected to the inner walls of the limiting grooves 5. The inner walls of the slides 8 on both sides are arranged on the outer walls of the threaded rods 6. The opposite ends of the first springs 10 on both sides are fixedly connected to the inner walls of the opposite ends of the clamping blocks 11 on both sides, and the ends of the first springs 10 on both sides away from the clamping blocks 11 are fixedly connected to the inner walls of the fixed blocks 9.
[0025] Furthermore, the bottom plate 1 is used to fix the support with the limit columns 12, the support plate 2 is used to fix the support column 3, the support plate 4 is used to fix the support with the support column 3, the threaded rod 6 passes through the slide plate 8 and is fixed in the fixed seat 4, so that the screw sleeves 7 on both sides can rotate on the threaded rod 6, and push the slide plate 8, the fixed block 9 and the clamping block 11 in relative directions, the limit groove 5 is used to limit the slide plate 8, the clamping block 11 is used to fix and clamp the insulating part, and the clamping block 11 squeezes the first spring 10 so that the first spring 10 can adjust the tension between the clamping block 11 and the insulating part to avoid over-tightening.
[0026] Among them, the left and right sides of the bottom end of the support plate 2 are fixedly connected with fixed columns 14, and the front and rear sides of the bottom end of the support plate 2 are fixedly connected with connecting plates 13, the middle outer walls of the fixed columns 14 on both sides are slidably connected with connecting blocks 15, the connecting blocks 15 on both sides are connected to the fixed cylinder 17 through connecting rods 18, and the connecting blocks 15 on both sides are connected to the bottom plate 1 through second springs 16, and the opposite ends of the front and rear connecting rods 18 are rotatably connected to the front and rear inner walls of the connecting blocks 15, and the ends of the connecting rods 18 on both sides away from the connecting blocks 15 are slidably connected to the inner walls of the fixed cylinder 17, and the tops of the second springs 16 on both sides are fixedly connected to the bottom ends of the connecting blocks 15 on both sides. One end of the two springs 16 away from the connecting block 15 is fixedly connected to the left and right sides of the top of the bottom plate 1, and the second springs 16 on both sides are arranged on the outer wall of the bottom end of the fixed column 14, and the opposite ends of the fixed cylinders 17 on both sides of the front and rear sides are rotatably connected to the inner wall of the bottom end of the connecting plates 13 on both sides, and the fixed cylinders 17 on both sides are connected to the fixed disk 19 through the third spring 20, and the opposite ends of the fixed disks 19 on both sides are fixedly connected to the ends of the connecting rods 18 on both sides away from the connecting block 15, one end of the third spring 20 is fixedly connected to the inner wall of the fixed cylinder 17, and the other end of the third spring 20 is fixedly connected to the outer wall of the fixed disk 19, and the third spring 20 is arranged on the outer wall of the connecting rod 18.
[0027] Furthermore, the support plate 2 fixes and supports the fixing column 14 and the connecting plate 13. When the transformer vibrates during operation, the support plate 2 drives the fixing column 14 to rise and fall in the connecting block 15, and squeezes the second spring 16. The elastic action of the second spring 16 increases the supporting force of the support plate 2, so that it can quickly return to its original position. At the same time, the connecting block 15 pulls the connecting rod 18, and the connecting rod 18 drives the fixing plate 19 to slide in the fixing cylinder 17. The fixing plate 19 squeezes the third spring 20. The elastic action of the third spring 20 absorbs the impact force generated by the transformer vibration, and reduces the risk of damage to the insulating parts due to vibration.
[0028] Working principle: First, turn the bolts to fix the base plate 1, then turn the screw sleeves 7 on both sides to push the slides 8, fixed blocks 9 and clamping blocks 11 on both sides to move in relative directions, and fix and clamp the insulating parts according to their sizes. At the same time, through the elastic action of the first spring 10, adjust the tension between the clamping block 11 and the insulating parts to avoid over-tightening. Then, when the transformer vibrates during operation, the support plate 2 drives the fixing column 14 to rise and fall in the connecting block 15, and squeezes the second spring 16. Through the elastic action of the second spring 16, the supporting force of the support plate 2 is increased so that it can quickly return to its original position. At the same time, the connecting block 15 pulls the connecting rod 18, and the connecting rod 18 drives the fixing plate 19 to slide in the fixing cylinder 17. The fixing plate 19 squeezes the third spring 20. Through the elastic action of the third spring 20, the impact force generated by the vibration of the transformer is absorbed, reducing the risk of damage to the insulating parts due to vibration.
[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fixing device for the end insulation of a large transformer coil, comprising a base plate (1), characterized in that: The inner walls of the four corners of the bottom plate (1) are threadedly connected with bolts, the left and right sides of the top of the bottom plate (1) are fixedly connected with limit columns (12), the bottom plate (1) is connected to the support plate (2) through a buffer assembly, the inner walls of the left and right ends of the support plate (2) are slidably connected to the outer walls of the limit columns (12) on both sides, the top of the support plate (2) is fixedly connected with a support column (3), the upper front end of the support column (3) is fixedly connected with a fixing seat (4), the upper and lower inner walls of the fixing seat (4) are provided with limit grooves (5), the inner wall of the fixing seat (4) is fixedly connected with a threaded rod (6), the outer walls of the left and right ends of the threaded rod (6) are threadedly connected with a screw sleeve (7), the screw sleeves (7) on both sides are connected to the fixing block (9) through a slide plate (8), and the fixing block (9) on both sides is connected to the clamping block (11) through a plurality of first springs (10).
2. A fixing device for insulating parts at the ends of large transformer coils according to claim 1, characterized in that: The opposite ends of the slides (8) on both sides are rotatably connected to the opposite ends of the screw sleeves (7) on both sides, the front ends of the slides (8) on both sides are fixedly connected to the rear ends of the fixed blocks (9) on both sides, the upper and lower outer walls of the slides (8) on both sides are slidably connected to the inner walls of the limiting grooves (5), and the inner walls of the slides (8) on both sides are arranged on the outer walls of the threaded rods (6).
3. A fixing device for the insulator at the end of a large transformer coil according to claim 1, characterized in that: The opposite ends of the first springs (10) on both sides are fixedly connected to the inner walls of the opposite ends of the clamping blocks (11) on both sides, and the ends of the first springs (10) on both sides away from the clamping blocks (11) are fixedly connected to the inner wall of the fixing block (9).
4. A fixing device for insulating parts at the ends of large transformer coils according to claim 1, characterized in that: The buffer assembly comprises a fixing column (14) fixedly connected to both left and right sides of the bottom end of the support plate (2) and a connecting plate (13) fixedly connected to both front and rear sides of the bottom end of the support plate (2), the middle outer walls of the fixing columns (14) on both sides are slidably connected with a connecting block (15), the connecting blocks (15) on both sides are connected to the fixing cylinder (17) through a connecting rod (18), and the connecting blocks (15) on both sides are connected to the bottom plate (1) through a second spring (16).
5. A fixing device for insulating parts at the ends of large transformer coils according to claim 4, characterized in that: The opposite ends of the connecting rods (18) on the front and rear sides are rotatably connected to the inner walls of the front and rear ends of the connecting block (15), and the ends of the connecting rods (18) on both sides away from the connecting block (15) are slidably connected to the inner wall of the fixing tube (17).
6. A fixing device for insulating parts at the ends of large transformer coils according to claim 4, characterized in that: The top ends of the second springs (16) on both sides are fixedly connected to the bottom ends of the connecting blocks (15) on both sides, the ends of the second springs (16) on both sides away from the connecting blocks (15) are fixedly connected to the left and right sides of the top end of the bottom plate (1), and the second springs (16) on both sides are arranged on the outer wall of the bottom end of the fixing column (14).
7. A fixing device for insulating parts at the ends of large transformer coils according to claim 5, characterized in that: The opposite ends of the fixed cylinders (17) on the front and rear sides are rotatably connected to the inner walls of the bottom ends of the connecting plates (13) on both sides, the fixed cylinders (17) on both sides are connected to the fixed plates (19) through third springs (20), and the opposite ends of the fixed plates (19) on both sides are fixedly connected to the ends of the connecting rods (18) on both sides away from the connecting blocks (15).
8. A fixing device for insulating parts at the ends of large transformer coils according to claim 7, characterized in that: One end of the third spring (20) is fixedly connected to the inner wall of the fixed cylinder (17), the other end of the third spring (20) is fixedly connected to the outer wall of the fixed disk (19), and the third spring (20) is arranged on the outer wall of the connecting rod (18).