Power transformer mutual inductor fixing equipment
The modular design of the electric power transformer inductor fixture with interchangeable rods addresses screw length errors, enabling efficient assembly and reducing waste by allowing for easy rod adjustments, thus improving installation efficiency and stability.
Patent Information
- Application Number
- CN202422051489.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the existing power transformer transformer fixed structure, the screw length error causes the inability to reuse, resulting in waste of resources and difficulty in assembly.
Design a fixing device including a lifting seat, a transverse plate, a casing flange and a base, connected by a threaded rod and a nut, allowing the threaded rod to be replaced during assembly and avoiding re-made lifting seats.
The threaded rod length is adjustable, which reduces resource waste, simplifies the assembly process, and improves the stability and flexibility of the equipment.
Smart Images
Figure CN223108618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for a transformer mutual inductor of a power transformer. Background Art
[0002] The fixing structure of the transformer mutual inductor of a power transformer is a very important part of the power system, which ensures the safe operation and long-term stability of the equipment.
[0003] The previous fixing structure of the transformer mutual inductor of a power transformer was to drill a threaded hole at the bottom of the bushing flange, and then weld it after screwing in the fixing screw. Although this structure can provide sufficient support strength for the fixation of the transformer mutual inductor, if the length of the screw is incorrect during assembly, since the screw is welded to the flange, the original threaded hole cannot be reused. The staff can only remake a suitable riser for use. However, this not only easily affects the assembly of the staff, but also may cause waste of resources. Content of the Utility Model
[0004] The utility model aims at the deficiencies of the prior art and provides a fixing device for a transformer mutual inductor of a power transformer, which can facilitate the staff to replace the threaded rod during the assembly process, facilitate the staff to assemble the device, avoid the staff remaking a suitable riser, and cause waste of resources.
[0005] The utility model is realized by the following technical solutions: a fixing device for a transformer mutual inductor of a power transformer is provided, which includes a riser. A horizontal plate is fixedly connected to the inner side wall of the riser. A bushing flange is fixedly connected to the top of the riser. A base welded to the bottom of the bushing flange is arranged inside the riser. A threaded blind hole is opened at the bottom of the base. A threaded rod is fastened in the threaded blind hole. The lower end of the threaded rod passes through the horizontal plate. A nut is installed on the threaded rod. The nut is located below the horizontal plate. The horizontal plate and the threaded rod are fixedly connected through the nut. The vertical distance between the horizontal plate and the bushing flange forms a clamping space for the transformer mutual inductor.
[0006] During the use of the utility model, by setting up a lifting seat, a cross plate is fixedly connected to the inner side wall of the lifting seat, a sleeve flange is fixedly connected to the top of the lifting seat, a base is arranged inside the lifting seat and welded to the bottom of the sleeve flange, a threaded blind hole is opened at the bottom of the base, a threaded rod is tightly fixed in the threaded blind hole, the lower end of the threaded rod passes through the cross plate, a nut is installed on the outer side wall of the threaded rod, the nut is located below the cross plate, and the cross plate and the threaded rod are tightly connected by the nut. The vertical distance between the cross plate and the sleeve flange forms a clamping space for the transformer mutual inductor. When the device is in use, it is necessary to assemble the device first. Place the transformer mutual inductor on the cross plate inside the lifting seat, then screw the threaded rod into the threaded blind hole of the base on the sleeve flange, and then use welding tools to fix the threaded rod and the base together. After that, control the movement of the sleeve flange so that the base and the threaded rod also move with the sleeve flange, so that the end of the threaded rod away from the sleeve flange can pass through the cross plate through the hole on the cross plate, and make the bottom of the sleeve flange fit with the top of the cylinder, and make the sleeve flange and the cross plate clamp and fix the transformer mutual inductor. Then use welding tools to weld and fix the sleeve flange and the cylinder together. After that, tighten the cross plate and the threaded rod together through the nut. Then place the device in the fuel tank and fix the device to the fuel tank. When the staff finds that the length of the threaded rod is too long or too short and cannot be used during the assembly process of the device, by removing the original base welded on the sleeve flange, a new base can be welded and fixed on the sleeve flange, and a new threaded rod can be installed in the base, so as to facilitate the staff to replace the threaded rod during the assembly process, facilitate the staff to assemble the device, and avoid the staff remaking a suitable lifting seat, resulting in waste of resources.
[0007] Preferably, six bases are arranged on the sleeve flange, and the six bases are evenly distributed along the circumferential direction of the sleeve flange. By arranging six bases on the sleeve flange and evenly distributing the six bases along the circumferential direction of the sleeve flange, the stability of the device during use can be improved.
[0008] Preferably, the lifting seat includes a cylinder and a fixing seat welded to the bottom of the cylinder. The lifting seat includes a cylinder and a fixing seat welded to the bottom of the cylinder. Using the fixing seat and the cylinder can not only facilitate the staff to fix the device in the fuel tank, but also facilitate the staff to weld the fixing seat to the bottom of the cylinder to seal the bottom of the cylinder after the nut tightens the cross plate and the threaded rod together.
[0009] Preferably, the outer edge of the cross plate fits with the inner side wall of the cylinder. By fitting the outer edge of the cross plate with the inner side wall of the cylinder, the stability of the device during use can be improved, and the cross plate can be prevented from shifting during use.
[0010] Preferably, the transverse plate and the cylinder are provided as an integral structure. By setting the transverse plate and the cylinder as an integral structure, the stability between the transverse plate and the cylinder during the use of the device can be improved.
[0011] The beneficial effects of the present utility model are as follows: By providing a lifting seat, a transverse plate is fixedly connected to the inner side wall of the lifting seat, a sleeve flange is fixedly connected to the top of the lifting seat, a base is provided inside the lifting seat and is welded to the bottom of the sleeve flange, a threaded blind hole is provided on the side wall of the base away from the sleeve flange, a threaded rod is fastened inside the threaded blind hole, the threaded rod extends horizontally in the direction away from the sleeve flange and passes through the transverse plate, a nut is installed on the outer side wall of the threaded rod, the nut is located on the side of the transverse plate away from the sleeve flange, the transverse plate and the threaded rod are fixedly connected by the nut, the vertical distance between the transverse plate and the sleeve flange forms a clamping space for the transformer and mutual inductor. When the device is in use, it is necessary to first assemble the device, place the transformer and mutual inductor on the transverse plate inside the lifting seat, then screw the six threaded rods into the threaded blind holes of the six bases on the sleeve flange respectively, and then use welding tools to fix the threaded rods and the bases together. After that, control the movement of the sleeve flange so that the base and the threaded rod also move with the sleeve flange, so that one end of the threaded rod away from the sleeve flange can pass through the transverse plate through the hole on the transverse plate, and make the bottom of the sleeve flange fit with the top of the cylinder, and make the sleeve flange and the transverse plate clamp and fix the transformer and mutual inductor, then use welding tools to weld and fix the sleeve and the cylinder together, and then fasten the transverse plate and the threaded rod together by the nut, and then place the device in the fuel tank and fix the device to the fuel tank. When the staff finds that the length of the threaded rod is too long or too short during the assembly process of the device and cannot be used, by removing the original base welded to the sleeve flange, a new base can be welded and fixed on the sleeve flange, and a new threaded rod can be installed in the base, so as to facilitate the staff to replace the threaded rod during the assembly process, which can facilitate the staff to assemble the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is a perspective view of the structure of the present utility model;
[0014] Figure 3 is Figure 2 a-a structural cross-sectional view in
[0015] As shown in the figure:
[0016] 1. Sleeve flange, 2. Cylinder, 3. Fixed seat, 4. Transformer and mutual inductor, 5. Threaded rod, 6. Base, 7. Transverse plate, 8. Nut, 9. Threaded blind hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific implementation manners.
[0018] As Figures 1 - 3 shown, the power transformer mutual inductor fixing device of the present utility model includes a riser. A transverse plate 7 is fixedly connected to the inner side wall of the riser. A bushing flange 1 is fixedly connected to the top of the riser. A base 6 welded to the bottom of the bushing flange 1 is arranged inside the riser. A threaded blind hole 9 is opened at the bottom of the base 6. A threaded rod 5 is fastened inside the threaded blind hole 9. The lower end of the threaded rod 5 passes through the transverse plate 7. A nut 8 is installed on the threaded rod 5. The nut 8 is located below the transverse plate 7. The transverse plate 7 and the threaded rod 5 are fixedly connected through the nut 8. The vertical distance between the transverse plate 7 and the bushing flange 1 forms a clamping space for the transformer mutual inductor.
[0019] By providing six bases 6 on the bushing flange 1 and evenly distributing the six bases 6 along the circumferential direction of the bushing flange 1, the stability of the device during use can be improved. The riser includes a cylinder 2 and a fixing base 3 welded to the bottom of the cylinder 2. The fixing base 3 and the cylinder 2 can not only facilitate the staff to fix the device in the fuel tank, but also, after the nut 8 fastens the transverse plate 7 and the threaded rod 5 together, facilitate the staff to weld the fixing base 3 to the bottom of the cylinder 2 to seal the bottom of the cylinder 2. By fitting the outer edge of the transverse plate 7 to the inner side wall of the cylinder 2, the stability of the device during use can be improved, and the transverse plate 7 can be prevented from shifting during use. By setting the transverse plate 7 and the cylinder 2 as an integral structure, the stability between the transverse plate 7 and the cylinder 2 during use of the device can be improved.
[0020] Combined with the attached Figures 1 - 3It can be known that the usage method of the present utility model is as follows: First, place the transformer mutual inductor 4 on the cross plate 7 inside the cylinder 2, then screw the six threaded rods 5 into the threaded blind holes 9 of the six bases 6 on the sleeve flange 1 respectively, and then use welding tools to fix the threaded rods 5 and the bases 6 together. After that, control the movement of the sleeve flange 1 so that the bases 6 and the threaded rods 5 also move along with the sleeve flange 1, so that the end of the threaded rod 5 away from the sleeve flange 1 can pass through the cross plate 7 through the hole on the cross plate 7, and make the bottom of the sleeve flange 1 fit with the top of the cylinder 2, and make the sleeve flange 1 and the cross plate 7 clamp and fix the transformer mutual inductor 4. Then use welding tools to weld and fix the sleeve and the cylinder 2 together. After that, turn over the welded sleeve flange 1 and the cylinder 2 so that the sleeve flange 1 is located below the cylinder 2, and fasten the cross plate 7 and the threaded rod 5 together with the nut 8. Then use welding tools to fix the fixing seat 3 and the bottom of the cylinder 2 together, and then place it in the fuel tank and fix the device and the fuel tank together through the fixing seat 3. When the device is being assembled and the staff finds that the length of the threaded rod 5 is too long or too short and cannot be used, by removing the original base 6 welded on the sleeve flange 1, a new base 6 can be welded and fixed on the sleeve flange 1, and a new threaded rod 5 can be installed in the base 6, so as to facilitate the staff to replace the threaded rod 5 during the assembly process and facilitate the staff to assemble the device.
[0021] Of course, the above description is not limited to the above examples. The technical features not described in the present utility model can be realized by or adopted from the prior art, which will not be elaborated here; the above embodiments and the drawings are only used to illustrate the technical solutions of the present utility model and are not intended to limit the present utility model. The present utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model do not depart from the purpose of the present utility model and should also fall within the scope of the protection of the claims of the present utility model.
Claims
1. A fixing device for a transformer mutual inductor of an electric power transformer, comprising a riser. A transverse plate (7) is fixedly connected to the inner side wall of the riser, and a bushing flange (1) is fixedly connected to the top of the riser. It is characterized in that: A base (6) welded to the bottom of the bushing flange (1) is provided inside the riser. A threaded blind hole (9) is formed in the bottom of the base (6). A threaded rod (5) is fastened in the threaded blind hole (9). The lower end of the threaded rod (5) passes through a cross plate (7). A nut (8) is installed on the threaded rod (5). The nut (8) is located below the cross plate (7). The cross plate (7) and the threaded rod (5) are tightly connected by the nut (8). The vertical distance between the cross plate (7) and the bushing flange (1) forms a clamping space for the transformer current transformer.
2. The fixed device for the power transformer mutual inductor according to claim 1, characterized in that: Six bases (6) are provided on the bushing flange (1). The six bases (6) are evenly distributed along the circumferential direction of the bushing flange (1).
3. The power transformer mutual inductor fixing device according to claim 1, characterized in that: The riser includes a cylinder (2) and a fixed seat (3) welded to the bottom of the cylinder (2).
4. The fixing device for the power transformer mutual inductor according to claim 3, characterized in that: The outer edge of the cross plate (7) is attached to the inner side wall of the cylinder (2).
5. The power transformer current transformer fixing device according to claim 4, characterized in that: The cross plate (7) and the cylinder (2) are provided as an integral structure.