Transformer iron core upper beam fixing device
By combining the design of clamps, core body, fixing bolts and fastening rods, the problem of the transformer core upper beam fixing device not being able to clamp tightly is solved, achieving stable connection of the core and reducing noise, thus ensuring the safe operation of the transformer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-17
AI Technical Summary
The existing transformer core upper beam fixing device is prone to problems during installation, such as the core not being clamped tightly, resulting in loud noise.
A transformer core upper beam fixing device was designed. Through the cooperation of clamps, core body, fixing bolts and fastening rods, the fastening rods are inserted into the core body from the outside of the clamps, and rubber pads and insulating sleeves are put on. The fastening nuts are tightened to fix the core, which enhances the connection stability and isolates the conductive parts.
This improves the installation stability of the core body, reduces noise, and ensures the safe operation of the transformer.
Smart Images
Figure CN224005755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a transformer core upper beam fixing device. Background Technology
[0002] The transformer core upper beam fixing device is a device used to fix the upper beam of the transformer core. Its main function is to ensure the stability and safety of the upper beam in the transformer. This device typically includes the following key components:
[0003] Clamping components: Clamping components are one of the main components of the fixing device. They are usually set at both ends of the upper beam of the transformer core, perpendicular to the upper beam. The inner side of the clamping component is provided with an upper beam support plate for supporting and fixing the upper beam.
[0004] Bolts: Bolts are used in the device to fix various components. Specifically, the first bolt is used to overlap the iron core upper beam with the clamp support plate in the horizontal plane, and to tighten the upper beam support plate with the clamp in the vertical plane; the second bolt is used to fix the clamp support plate and the upper beam.
[0005] Support plates: The upper beam support plate and the clamp support plate are respectively set on the inner side of the clamp and the upper beam. The upper beam is fixed and supported by the cooperation of threaded holes and bolts.
[0006] Currently, when installing the upper beam of the core of a large transformer, it only overlaps with the support plate of the clamp on the horizontal plane and is fastened with bolts. This installation structure can lead to the core not being clamped tightly, which in turn causes a lot of noise.
[0007] Therefore, it is of great importance to design a transformer core upper beam fixing device to solve the above defects. Utility Model Content
[0008] To address the shortcomings of existing technologies, this utility model designs a transformer core upper beam fixing device. This device aims to solve the technical problem that existing transformer core upper beam fixing devices may not clamp the core tightly, leading to excessive noise.
[0009] To achieve the above objectives, this utility model provides the following technical solution:
[0010] A transformer core upper beam fixing device includes an upper beam plate, with a lead plate fixedly installed below the left and right ends of the upper beam plate, clamps fixedly installed at the front and rear ends of the bottom of two sets of lead plates, and an iron core body fixedly installed between multiple sets of clamps. Fixing bolts are installed between the clamps, lead plates and upper beam plate, and fastening rods are passed through the front and rear ends of the iron core body and the upper and lower ends of the clamps.
[0011] An insulating sleeve is fitted inside the core body and outside the fastening rod. Fastening nuts are threaded to both ends of the fastening rod and outside the clamp. A first washer is fitted on the outside of the fastening rod and on the opposite side of the two sets of fastening nuts. A first rubber pad is fitted on the outside of the fastening rod and between the first washer and the clamp.
[0012] As a preferred embodiment of this utility model, adjusting nuts are threadedly connected to the outer side of the fixing bolt and on both the upper and lower sides of the upper beam plate. A second washer is sleeved on the outer side of the fixing bolt and on the opposite side of the two sets of adjusting nuts. A second rubber pad is sleeved on the outer side of the fixing bolt and between the second washer and the upper beam plate.
[0013] As a preferred embodiment of this utility model, a wiring bolt is threadedly connected to the middle of both sets of the outgoing plates, and wires are fixedly connected to both ends of the iron core body. A terminal is sleeved on the bottom end of the wiring bolt, and the bottom end of the terminal is fixedly connected to the wire.
[0014] As a preferred embodiment of this utility model, the top of the wiring bolt is threaded with a wire clamping nut, the outer side of the wiring bolt and located at the top of the outlet plate is threaded with a first fixing nut, the outer side of the wiring bolt and located below the first fixing nut is fitted with a third washer, and the outer side of the wiring bolt and located between the third washer and the outlet plate is fitted with a third rubber pad.
[0015] As a preferred embodiment of this utility model, the bottom end of the clamp is provided with a mounting hole, and an insulating plate is clamped between the clamp and the iron core body.
[0016] As a preferred embodiment of this utility model, the clamp, the iron core body, and the insulating plate are all provided with through holes at positions corresponding to the fastening rod, and the fastening rod passes through the inside of the through holes.
[0017] As a preferred embodiment of this utility model, a second fixing nut is threadedly connected to the outside of the fixing bolt and the top of the outlet plate, a fourth washer is sleeved on the outside of the fixing bolt and the bottom of the second fixing nut, a fourth rubber pad is sleeved between the fourth washer and the outlet plate, and a fifth rubber pad is sleeved on the outside of the fixing bolt and the bottom of the clamp.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] In this invention, through the coordinated design of clamps, core body, fixing bolts, and fastening rods, the clamps are installed on the left and right ends of the upper beam plate using fixing bolts. After the core body is fixed using multiple sets of clamps, the fastening rods are inserted from the outside of the clamps into the interior of both ends of the core body. Then, the first rubber pad and the first washer are fitted on, and finally, the fastening nuts are tightened to fix both ends of the fixing bolts. An insulating sleeve is fitted on the outside of the fastening rod, which can effectively isolate the fastening rod from the conductive parts, ensuring the safe operation of the transformer. The fastening rods further strengthen the connection between the core body and the clamps, and at the same time increase the clamping force of the clamps on the core body, thereby ensuring the installation firmness of the core body and reducing noise. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the wiring bolt structure of this utility model;
[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 This is a cross-sectional view of the overall structure of this utility model;
[0024] Figure 5 for Figure 4 Enlarged view of section B in the middle.
[0025] In the diagram: 1. Upper beam plate; 101. Adjusting nut; 102. Second washer; 103. Second rubber pad; 2. Outlet plate; 201. Connecting bolt; 202. Wire; 203. Connector; 204. Wire clamp nut; 205. First fixing nut; 206. Third washer; 207. Third rubber pad; 3. Clamp; 301. Mounting hole; 302. Insulating plate; 303. Through hole; 4. Iron core body; 5. Fixing bolt; 501. Second fixing nut; 502. Fourth washer; 503. Fourth rubber pad; 504. Fifth rubber pad; 6. Fastening rod; 601. Insulating sleeve; 602. Fastening nut; 603. First washer; 604. First rubber pad. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Example: Please refer to Figures 1-5 This utility model provides a technical solution:
[0028] A transformer core upper beam fixing device includes an upper beam plate 1, with a lead plate 2 fixedly installed below both the left and right ends of the upper beam plate 1, and clamps 3 fixedly installed at the front and rear ends of the bottom of the two sets of lead plates 2, with a core body 4 fixedly installed between multiple sets of clamps 3, and fixing bolts 5 installed between the clamps 3, the lead plates 2 and the upper beam plate 1, and fastening rods 6 passing through the front and rear ends of the core body 4 and the upper and lower ends of the clamps 3.
[0029] First, an insulating sleeve 601 is fitted inside the core body 4 and outside the fastening rod 6. Fastening nuts 602 are threaded onto both ends of the fastening rod 6 and outside the clamps 3. First washers 603 are fitted onto the outer sides of the fastening rod 6 and opposite the two sets of fastening nuts 602. A first rubber pad 604 is fitted onto the outer side of the fastening rod 6 and between the first washer 603 and the clamps 3. The clamps 3 are then installed on the left and right ends of the upper beam plate 1 using fixing bolts 5. After the core body 4 is fixed using multiple sets of clamps 3, the fastening rod 6... The clamp 3 is inserted into the interior of both ends of the core body 4 from the outside. Then, the first rubber pad 604 and the first washer 603 are put on. Finally, the fastening nut 602 is tightened to fix both ends of the fixing bolt 5. The outside of the fastening rod 6 is covered with an insulating sleeve 601, which can effectively isolate the fastening rod 6 from the conductive parts and ensure the safe operation of the transformer. The fastening rod 6 further strengthens the connection between the core body 4 and the clamp 3, and at the same time increases the clamping force of the clamp 3 on the core body 4, thereby ensuring the installation firmness of the core body 4 and reducing noise.
[0030] Furthermore, adjusting nuts 101 are threadedly connected to the outer side of the fixing bolt 5 and on both the upper and lower sides of the upper beam plate 1. A second washer 102 is fitted on the outer side of the fixing bolt 5 and on the opposite side of the two sets of adjusting nuts 101. A second rubber pad 103 is fitted between the outer side of the fixing bolt 5 and the second washer 102 and the upper beam plate 1. The height of the upper beam plate 1 can be adjusted by adjusting the adjusting nuts 101 on both the upper and lower sides of the upper beam plate 1, so that the height of the upper beam plate 1 can be adjusted accordingly according to the transformer model. The second washer 102 can improve the firmness of the adjusting nut 101 after fixing, while the second rubber pad 103 can reduce the impact of vibration, improve the firmness of the adjusting nut 101, and protect the surface of the upper beam plate 1.
[0031] Then, a wiring bolt 201 is threadedly connected to the middle of both sets of outlet plates 2, and a wire 202 is fixedly connected to both the left and right ends of the iron core body 4. A terminal 203 is sleeved on the bottom end of the wiring bolt 201, and the bottom end of the terminal 203 is fixedly connected to the wire 202. The terminal 203 at the top of the wire 202 is sleeved on the bottom end of the wiring bolt 201, and the iron core body 4 is wired through the wiring bolt 201.
[0032] Furthermore, a wire clamping nut 204 is threaded onto the top of the wiring bolt 201, and a first fixing nut 205 is threaded onto the outside of the wiring bolt 201 and located at the top of the outlet plate 2. A third washer 206 is fitted onto the outside of the wiring bolt 201 and below the first fixing nut 205. A third rubber pad 207 is fitted onto the outside of the wiring bolt 201 and between the third washer 206 and the outlet plate 2. The wire clamping nut 204 and the first fixing nut 205 are used to clamp the external wiring. The third washer 206 can improve the firmness of the first fixing nut 205 after it is fixed. At the same time, the third rubber pad 207 reduces the impact of vibration and improves the firmness of the first fixing nut 205, while also protecting the surface of the outlet plate 2.
[0033] The clamp 3 has a mounting hole 301 at its bottom end. An insulating plate 302 is clamped between the clamp 3 and the iron core body 4. The bottom end of the clamp 3 is installed and fixed through the mounting hole 301. After the iron core body 4 is fixed by the clamp 3, the insulating plate 302 can isolate the conductive parts and protect the clamp 3 and the iron core body 4, so as to avoid excessive clamping force from damaging the outside of the iron core body 4.
[0034] Secondly, through holes 303 are provided in the clamp 3, the iron core body 4 and the insulating plate 302 at positions corresponding to the fastening rod 6, and the fastening rod 6 is inserted through the through hole 303. The fastening rod 6 is inserted into the through hole 303 from the outside of the clamp 3 through the through hole 303, thereby being installed into the interior of both ends of the iron core body 4.
[0035] Finally, a second fixing nut 501 is threaded onto the outside of the fixing bolt 5 and at the top of the outlet plate 2. A fourth washer 502 is fitted onto the outside of the fixing bolt 5 and at the bottom of the second fixing nut 501. A fourth rubber pad 503 is fitted onto the outside of the fixing bolt 5 and between the fourth washer 502 and the outlet plate 2. A fifth rubber pad 504 is fitted onto the outside of the fixing bolt 5 and at the bottom of the clamp 3. The outlet plate 2 and the clamp 3 are fixed by the second fixing nut 501. The fourth washer 502 can improve the firmness of the second fixing nut 501 after fixing. The fourth rubber pad 503 and the fifth rubber pad 504 can reduce the impact of vibration and protect the surface of the outlet plate 2 and the clamp 3.
[0036] In this embodiment, the specific implementation scenario is as follows: the clamps 3 are installed on the left and right ends of the upper beam plate 1 by fixing bolts 5. After the iron core body 4 is fixed by multiple sets of clamps 3, the fastening rods 6 are inserted into the interior of both ends of the iron core body 4 from the outside of the clamps 3. Then, the first rubber pads 604 and the first washers 603 are put on, and finally the fastening nuts 602 are tightened to fix both ends of the fixing bolts 5. The outside of the fastening rods 6 is covered with an insulating sleeve 601, which can effectively isolate the fastening rods 6 from the conductive parts and ensure the safe operation of the transformer. The fastening rods 6 further strengthen the connection between the iron core body 4 and the clamps 3, and at the same time increase the clamping force of the clamps 3 on the iron core body 4. The whole operation process is simple and convenient. Compared with the existing transformer iron core upper beam fixing device, this utility model ensures the installation firmness of the iron core body 4 and reduces noise.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing device for the upper beam of a transformer core, comprising an upper beam plate (1), characterized in that: The lower part of the left and right ends of the upper beam plate (1) is fixedly installed with an outgoing line plate (2), the front and rear ends of the bottom of the two groups of outgoing line plates (2) are fixedly installed with a clamping piece (3), a plurality of groups of clamping pieces (3) are fixedly installed with an iron core body (4), a fixing bolt (5) is installed between the clamping piece (3), the outgoing line plate (2) and the upper beam plate (1), and the front and rear ends of the iron core body (4) and the upper and lower ends of the clamping piece (3) are provided with a fastening rod (6). The inside of the iron core body (4) and the outside of the fastening rod (6) are sleeved with an insulating sleeve (601), the left and right ends of the fastening rod (6) and the outside of the clamping piece (3) are threadedly connected with a fastening nut (602), the outside of the fastening rod (6) and the opposite side of the two groups of fastening nuts (602) are sleeved with a first gasket (603), and the outside of the fastening rod (6) and between the first gasket (603) and the clamping piece (3) are sleeved with a first rubber pad (604).
2. The transformer core upper beam fixing device according to claim 1, characterized in that: The outside of the fixing bolt (5) and the upper and lower sides of the upper beam plate (1) are threadedly connected with an adjusting nut (101), the outside of the fixing bolt (5) and the opposite side of the two groups of adjusting nuts (101) are sleeved with a second gasket (102), and the outside of the fixing bolt (5) and between the second gasket (102) and the upper beam plate (1) are sleeved with a second rubber pad (103).
3. The transformer core leg fixing device according to claim 1, characterized in that: The middle of the two groups of outgoing line plates (2) is threadedly connected with a wiring bolt (201), the left and right ends of the iron core body (4) are fixedly connected with a wire (202), the bottom end of the wiring bolt (201) is sleeved with a wiring head (203), and the bottom end of the wiring head (203) is fixedly connected with the wire (202).
4. The transformer core leg fixing device according to claim 3, characterized in that: The top end of the wiring bolt (201) is threadedly connected with a wire clamping nut (204), the outside of the wiring bolt (201) and the top of the outgoing line plate (2) are threadedly connected with a first fixing nut (205), the outside of the wiring bolt (201) and below the first fixing nut (205) are sleeved with a third gasket (206), and the outside of the wiring bolt (201) and between the third gasket (206) and the outgoing line plate (2) are sleeved with a third rubber pad (207).
5. The transformer core leg fixing device according to claim 1, characterized in that: The bottom end of the clamping piece (3) is provided with a mounting hole (301), and the clamping piece (3) and the iron core body (4) are clamped with an insulating plate (302).
6. A transformer core leg fixing device according to claim 5, characterized in that: The clamping piece (3), the iron core body (4) and the insulating plate (302) are provided with a perforation (303) at the position corresponding to the fastening rod (6), and the fastening rod (6) penetrates the inside of the perforation (303).
7. The transformer core leg fixing device of claim 1, wherein: The outer side of the fixing bolt (5) and the top of the outlet board (2) are threadedly connected with a second fixing nut (501), the outer side of the fixing bolt (5) and the bottom of the second fixing nut (501) are sleeved with a fourth gasket (502), the outer side of the fixing bolt (5) and between the fourth gasket (502) and the outlet board (2) are sleeved with a fourth rubber pad (503), and the outer side of the fixing bolt (5) and the bottom end of the clamp (3) are sleeved with a fifth rubber pad (504).