Special shock absorber for dry-type transformer
By introducing a guide sleeve rod and hydraulic oil adjustment system into the dry transformer vibration absorber, the problem of uneven ground leveling is solved, ensuring stable installation of the transformer and extending service life.
Patent Information
- Application Number
- CN202421983474.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing shock absorbers are difficult to adjust on uneven ground to form a good horizontal support surface, and the uneven weight of each bearing point of the dry transformer leads to permanent deformation of the spring, resulting in tilting.
A special shock absorber for dry transformers is designed. By setting a guide sleeve rod and guide sleeve between the bottom plate and the top plate of the shock absorber, combining the adjustment of the hydraulic oil volume in the oil cavity and adjusting the reference height of the piston body, fine-tuning and leveling of the shock absorber is achieved, and anti-slip rubber gaskets and limit screw hole seats are equipped to fix the transformer.
It realizes rapid leveling on uneven ground to form a horizontal load-bearing surface, extends the service life of the shock absorber, and avoids inclination caused by uneven deformation of the spring.
Smart Images
Figure CN223152644U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to a shock absorber special for dry-type transformers. Background Technique
[0002] When a transformer is installed, a shock absorber is needed for support to avoid the harm caused by resonance. When supporting on an uneven bottom surface, the existing shock absorber is inconvenient to adjust, and it is difficult to obtain a good horizontal support surface. In addition, since the weights acting on each bearing point of the dry-type transformer are different, the permanent deformations of each shock absorber spring are different, resulting in an inclination phenomenon after long-term use. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a shock absorber special for dry-type transformers is provided, which solves the above problems.
[0004] The technical problem of the utility model is solved by the following technical solutions:
[0005] A shock absorber special for dry-type transformers includes a shock absorber bottom plate fixed on the ground or a bracket. A guiding sleeve rod is fixedly arranged on the upper end surface of the shock absorber bottom plate. It also includes a shock absorber top plate with a guiding sleeve. The guiding sleeve is slidably sleeved on the guiding sleeve rod. A chassis and a top plate are arranged between the shock absorber top plate and the shock absorber bottom plate. The top plate is slidably inserted into the chassis. A piston body that can slide up and down is arranged in the chassis. A sealing rubber ring is sleeved outside the piston body to form a seal with the chassis and form an adjusting oil cavity in the chassis. A valve body communicated with the adjusting oil cavity is fixedly arranged on the outer wall surface of the chassis. A spring is arranged between the piston body and the top plate. By adjusting the hydraulic oil volume in the adjusting oil cavity, the reference height of the piston body can be changed, so as to realize the fine adjustment of the shock absorber top plate, which is convenient to level the reference heights of different shock absorbers during installation, and thus can form a horizontal bearing surface on the basis of an uneven ground.
[0006] Preferably, the sliding stroke of the guiding sleeve is less than the sliding stroke of the top plate, so as to avoid the piston body touching the bottom.
[0007] Preferably, an anti-slip rubber gasket with a pattern structure is fixedly arranged on the upper end surface of the shock absorber top plate.
[0008] Preferably, at least one transformer limiting screw hole seat with a threaded hole is fixedly welded on the upper end surface of the shock absorber top plate for fixing the dry-type transformer.
[0009] Preferably, in order to facilitate the comparison of the heights of the shock absorbers carrying the same transformer, a scale is provided on the outside of the guide sleeve rod to display the height position of the guide sleeve.
[0010] The advantages and positive effects of the present utility model are as follows: The reference height of the piston body can be adjusted by adjusting the hydraulic oil in the adjusting oil cavity, so as to quickly level a number of shock absorbers to form a good horizontal bearing surface. In addition, after the spring is unevenly deformed, calibration can also be carried out to maintain a longer service life. Brief Description of the Drawings
[0011] The present utility model will be further described below with reference to the drawings and embodiments.
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is Figure 1 a schematic diagram of the internal structure of the middle chassis 16 and the top plate 17 in
[0014] The reference numerals in the drawings are described separately as follows: 10, shock absorber top plate; 11, transformer limit screw hole seat; 12, guide sleeve; 13, guide sleeve rod; 14, shock absorber bottom plate; 15, valve body; 16, chassis; 17, top plate; 18, adjusting oil cavity; 19, piston body; 20, sealing rubber ring; 21, spring. Detailed Description of the Embodiment
[0015] The present utility model will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. The following is a further detailed description of the embodiments of the present utility model with reference to the drawings:
[0016] Such as Figure 1-2As shown in the figure, a special shock absorber for dry-type transformers of the present utility model includes a shock absorber bottom plate 14 fixed on the ground or a bracket. A guiding sleeve rod 13 is fixedly arranged on the upper end surface of the shock absorber bottom plate 14. It also includes a shock absorber top plate 10 with a guiding sleeve 12, wherein the guiding sleeve 12 is slidably sleeved on the guiding sleeve rod 13. A chassis 16 and a top plate 17 are arranged between the shock absorber top plate 10 and the shock absorber bottom plate 14. The top plate 17 is slidably inserted into the chassis 16. A piston body 19 that can slide up and down is arranged in the chassis 16. A sealing rubber ring 20 is sleeved outside the piston body 19 to form a seal with the chassis 16 and form an adjusting oil cavity 18 in the chassis 16. A valve body 15 communicated with the adjusting oil cavity 18 is fixedly arranged on the outer wall surface of the chassis 16. A spring 21 is arranged between the piston body 19 and the top plate 17. By adjusting the hydraulic oil volume in the adjusting oil cavity 18, the reference height of the piston body 19 can be changed, and further the fine adjustment of the shock absorber top plate 10 can be realized, which is convenient for leveling the reference heights of different shock absorbers during installation, and further a horizontal bearing surface can be formed on the basis of an uneven ground.
[0017] Preferably, the sliding stroke of the guiding sleeve 12 is less than the sliding stroke of the top plate 17, so as to prevent the piston body 19 from touching the bottom.
[0018] Preferably, a non-slip rubber gasket with a pattern structure is fixedly arranged on the upper end surface of the shock absorber top plate 10.
[0019] Preferably, at least one transformer limiting screw hole seat 11 with a threaded hole is fixedly welded on the upper end surface of the shock absorber top plate 10 for fixing the dry-type transformer.
[0020] Preferably, in order to facilitate comparing the heights of each shock absorber bearing the same transformer, a scale is arranged outside the guiding sleeve rod 13 to display the height position where the guiding sleeve 12 is located.
[0021] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present utility model also belong to the protection scope of the present utility model.
Claims
1. A special shock absorber for dry-type transformers, characterized in that: It includes a shock absorber bottom plate (14) fixed on the ground or a bracket. A guide sleeve rod (13) is fixedly arranged on the upper end face of the shock absorber bottom plate (14). It also includes a shock absorber top plate (10) with a guide sleeve (12), wherein the guide sleeve (12) is slidably sleeved on the guide sleeve rod (13). A chassis (16) and a top plate (17) are arranged between the shock absorber top plate (10) and the shock absorber bottom plate (14). The top plate (17) is slidably inserted into the chassis (16). A piston body (19) that can slide up and down is arranged in the chassis (16). A sealing rubber ring (20) is sleeved outside the piston body (19) to form a seal with the chassis (16) and form an adjusting oil cavity (18) in the chassis (16). A valve body (15) communicated with the adjusting oil cavity (18) is fixedly arranged on the outer wall surface of the chassis (16). A spring (21) is arranged between the piston body (19) and the top plate (17). By adjusting the hydraulic oil volume in the adjusting oil cavity (18), the reference height of the piston body (19) can be changed, and then the fine adjustment of the shock absorber top plate (10) can be realized, which is convenient for leveling the reference heights of different shock absorbers during installation, and then a horizontal bearing surface can be formed on the basis of uneven ground.
2. The special shock absorber for dry-type transformer according to claim 1, characterized in that: The sliding stroke of the guide sleeve (12) is less than the sliding stroke of the top plate (17), so as to prevent the piston body (19) from touching the bottom.
3. The special shock absorber for dry-type transformer according to claim 2, characterized in that: A non-slip rubber gasket with a pattern structure is fixedly arranged on the upper end face of the shock absorber top plate (10).
4. The special shock absorber for dry-type transformer according to claim 3, characterized in that: At least one transformer limiting screw hole seat (11) with a threaded hole is fixedly arranged on the upper end face of the shock absorber top plate (10) by welding for fixing a dry-type transformer.
5. The special shock absorber for dry-type transformer according to claim 4, characterized in that: In order to facilitate the comparison of the heights of each shock absorber carrying the same transformer, a scale is arranged outside the guide sleeve rod (13) to display the height position where the guide sleeve (12) is located.