Dry-type power transformer

Abstract

The utility model discloses a dry-type power transformer, which belongs to the technical field of transformers and comprises a base and a transformer body arranged at the upper end of the base, a hanging ring is arranged at the upper end of the transformer body, a placing groove matched with the transformer body is arranged at the upper end of the base, a reinforcing rod is arranged in the placing groove, and the reinforcing rod is arranged in the placing groove. Two bottom supports are symmetrically and fixedly arranged at the lower end of the base, and anti-collision mechanisms are arranged at the four corners of the lower end of the base correspondingly. The anti-collision mechanisms are arranged at the four corners of the lower end of the base, so that in the hoisting process of the transformer, through rolling contact between the anti-collision mechanisms and the inner wall of the box body, the shaking amplitude of the transformer can be effectively reduced, collision between the transformer and the box body is avoided, a transformer body is protected against damage, and the safety of hoisting operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a dry-type power transformer. Background Art

[0002] Dry-type power transformers are widely used in various places with high safety and environmental protection requirements, such as high-rise buildings, subways, airports, hospitals, factories, etc., due to their advantages of fireproof, explosion-proof and pollution-free. With the development of social economy and the continuous growth of electricity demand, more stringent standards are put forward for the performance and quality of dry-type power transformers.

[0003] In actual application, the installation and transportation of dry-type power transformers face many challenges. During installation, the transformer usually needs to be lowered from the top plate of the box to the inside of the box with the help of lifting equipment. However, traditional transformers lack effective anti-collision measures during the lifting process, and are prone to collision with the box due to excessive shaking, resulting in damage to the transformer shell and loose internal components, affecting its normal operation, and even causing safety accidents, resulting in huge economic losses. Utility Model Content

[0004] The purpose of the utility model is to propose a dry-type power transformer in order to solve the above-mentioned technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dry-type power transformer comprises a base and a transformer body arranged at the upper end of the base, a lifting ring is arranged at the upper end of the transformer body, a placement groove matched with the transformer body is opened at the upper end of the base, a reinforcing rod is arranged inside the placement groove, two bottom brackets are symmetrically fixed at the lower end of the base, and anti-collision mechanisms are respectively arranged at the four corners of the lower end of the base.

[0007] As a further description of the above technical solution:

[0008] The anti-collision mechanism includes a mounting block and two telescopically adjustable length connection components, the mounting block is rotatably connected to the lower end of the base through a rotating shaft, the two connection components are respectively hingedly matched with the mounting block through reset hinges, the two connection components are vertically distributed, and constraint rods are respectively penetrated at the four corners of the upper end of the base, and two constraint holes that match the constraint rods are symmetrically opened on the upper end of the mounting block.

[0009] As a further description of the above technical solution:

[0010] The cam is hinged on the mounting plate and is provided with a mounting plate, the mounting plate being arranged on a camshaft and being able to move along the camshaft to move along the mounting plate.

[0011] As a further description of the above technical solution:

[0012] There are multiple positioning holes, and the multiple positioning holes are distributed linearly.

[0013] As a further description of the above technical solution:

[0014] The positioning member is a bolt and is threadably connected to the mounting plate, and a handle is fixedly provided on the upper end of the mounting plate.

[0015] As a further description of the above technical solution:

[0016] A circular ring is fixedly provided at the upper end of the restraining rod, the lower end of the restraining rod is in a cone shape, the restraining rod is threadedly connected to the base, and the restraining hole is a frustum hole.

[0017] As a further description of the above technical solution:

[0018] The reinforcing rods are fixedly connected to the bottom brackets through clamps.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] In the utility model, by means of anti-collision mechanisms arranged at the four corners of the lower end of the base, the anti-collision mechanisms can be in rolling contact with the inner wall of the box during the transformer hoisting process, which can effectively reduce the shaking amplitude of the transformer, avoid collision with the box, protect the transformer body from damage, and improve the safety of the hoisting operation.

[0021] In the utility model, by providing a connection component with a retractable and adjustable length, it is convenient to meet the needs of hoisting the transformer into boxes of different specifications, ensuring that during the operation, the connection plate and the connection sleeve will be turned upward, and under the action of the reset hinge, a certain restraining effect will be played to reduce the shaking amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure diagram of the transformer provided according to the embodiment of the utility model is shown;

[0023] Figure 2 A schematic diagram of a base structure provided according to an embodiment of the utility model is shown;

[0024] Figure 3 A schematic diagram of the anti-collision mechanism structure provided according to an embodiment of the utility model is shown;

[0025] Figure 4 A schematic diagram of the structure of a connection assembly provided according to an embodiment of the utility model is shown;

[0026] Figure 5 A partial structural cross-sectional view of a connection assembly provided according to an embodiment of the utility model is shown;

[0027] Figure 6 A schematic diagram of the structure of the mounting block provided according to an embodiment of the utility model is shown;

[0028] Figure 7 A cross-sectional view of a mounting block structure provided according to an embodiment of the utility model is shown;

[0029] Figure 8 A schematic diagram of the restraining rod structure provided according to an embodiment of the utility model is shown.

[0030] Legend: 1. Base; 2. Transformer body; 3. Lifting ring; 4. Bottom bracket; 5. Reinforcement rod; 6. Clamp; 7. Connecting sleeve; 8. Constraint rod; 9. Mounting block; 10. Connecting plate; 11. Positioning hole; 12. Rotating shaft; 13. Constraint hole; 14. Reset hinge; 15. Roller; 16. Mounting plate; 17. Spring; 18. Slide rod; 19. Positioning piece; 20. Handle; 21. Slide plate. DETAILED DESCRIPTION

[0031] 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 of 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.

[0032] like Figure 1-Figure 8 As shown, a dry-type power transformer comprises a base 1 and a transformer body 2 arranged on the upper end of the base 1, a lifting ring 3 is arranged on the upper end of the transformer body 2, so as to facilitate lifting the transformer with the help of external lifting equipment, a placement groove adapted to the transformer body 2 is opened on the upper end of the base 1, a reinforcing rod 5 is arranged inside the placement groove to improve the firmness of the base 1, two bottom brackets 4 are symmetrically fixed on the lower end of the base 1, and anti-collision mechanisms are respectively arranged at the four corners of the lower end of the base 1.

[0033] Further, the anti-collision mechanism includes a mounting block 9 and two connecting components with adjustable lengths. The mounting block 9 is rotatably connected to the lower end of the base 1 through a rotating shaft 12. The two connecting components are respectively hingedly matched with the mounting block 9 through a reset hinge 14. The two connecting components are vertically distributed. Constraint rods 8 are respectively penetrated at the four corners of the upper end of the base 1. Two constraint holes 13 that match the constraint rods 8 are symmetrically opened on the upper end of the mounting block 9. The transformer is placed into the box from the top plate of the box by hoisting. When the transformer is hoisted, the anti-collision mechanism is in the storage state in the initial state (refer to the attached manual). Figure 1 ), and then the staff will pull the restraint rod 8 upwards to disengage the lower end of the restraint rod 8 from the restraint hole 13, release the limit on the rotation of the mounting block 9, and then deflect the mounting block 9 by 180° in turn, that is, the anti-collision mechanism is in the deployed state (refer to the attached manual). Figure 2 ), during the rotation of the mounting block 9, the two constraint holes 13 will switch positions, and then the staff can insert the constraint rod 8 into the constraint hole 13 to complete the positioning of the mounting block 9, that is, complete the positioning of the anti-collision mechanism after deployment. In the actual operation process, the staff can adjust the length of the connecting assembly according to the size of the interior of the box to ensure that the connecting assembly can contact the inner wall of the box during the lowering of the transformer into the box, thereby reducing the shaking amplitude during the lifting operation and avoiding excessive shaking and collision with the box.

[0034] Further, the connecting assembly includes a connecting plate 10 and a connecting sleeve 7 slidably sleeved on the outside of the connecting plate 10. The connecting plate 10 is moved away from the connecting sleeve 7 and is provided with a roller 15. By providing the roller 15, the roller 15 is in rolling contact with the inner wall of the box. The connecting sleeve 7 is hingedly matched with the mounting block 9. A mounting groove is provided at the lower end of the connecting plate 10. A slide plate 21 is slidably provided inside the mounting groove. The upper end of the slide plate 21 is connected to the top surface of the mounting groove through a spring 17. A slide rod 18 is fixedly provided at the upper end of the slide rod 18. The upper end of the slide rod 18 is movable through the outside of the mounting groove and is provided with a mounting plate 16. The connecting sleeve The upper end surface of the connecting sleeve 7 is provided with a strip groove matched with the slide rod 18, the end of the mounting plate 16 is provided with a positioning piece 19, and the upper end surface of the connecting sleeve 7 is provided with a positioning hole 11 matched with the positioning piece 19. When in use, the staff pulls the mounting plate 16 upward to disengage the positioning piece 19 from the positioning hole 11, and then drives the connecting plate 10 to slide, ensuring that the distance between the connecting plates 10 is greater than the inner diameter of the box. During the hoisting process, the connecting plate 10 will contact the top surface of the box, thereby causing the connecting plate 10 to flip upward and drive the connecting sleeve 7 to flip synchronously (refer to the attached manual). Figure 2 ), until the connecting plate 10 completely enters the box body, at this time, the connecting plate 10, under the action of the reset hinge 14, makes the roller 15 abut against the inner wall of the box body, effectively ensuring the stability of the transformer during the lifting and lowering process.

[0035] Furthermore, there are multiple positioning holes 11 , which are linearly distributed. With the cooperation between the positioning member 19 and the positioning holes 11 , it is convenient to perform multi-level adjustment on the connecting plate 10 .

[0036] Furthermore, the positioning member 19 is a bolt and is threadedly connected to the mounting plate 16. A handle 20 is fixedly provided on the upper end of the mounting plate 16, which facilitates the operation of the handle 20 to pull the mounting plate 16 upward, thereby improving the comfort of the staff during operation.

[0037] Furthermore, a circular ring is fixed on the upper end of the constraint rod 8, and the lower end of the constraint rod 8 is conical. The constraint rod 8 is threadedly connected to the base 1, and the constraint hole 13 is a frustum hole. When in use, the staff loosens the constraint rod 8, so that the constraint rod 8 moves upward and disengages from the constraint hole 13. When the constraint rod 8 is tightened, the constraint rod 8 moves downward and is inserted into the constraint hole 13, tightly abutting against the inner wall of the constraint hole 13 to ensure the stability of the mounting block 9.

[0038] Furthermore, the reinforcing rods 5 are fixedly connected to the base 4 through the clamps 6 , thereby improving the firmness between the base 1 and the base 4 .

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dry-type power transformer, comprising a base (1) and a transformer body (2) arranged at the upper end of the base (1), wherein a hanging ring (3) is arranged at the upper end of the transformer body (2), characterized in that: The upper end of the base (1) is provided with a placement groove adapted to the transformer body (2), a reinforcing rod (5) is provided inside the placement groove, two bottom brackets (4) are symmetrically fixedly provided at the lower end of the base (1), and anti-collision mechanisms are respectively provided at the four corners of the lower end of the base (1).

2. A dry-type power transformer according to claim 1, characterized in that: The anti-collision mechanism comprises a mounting block (9) and two connecting components with adjustable lengths, wherein the mounting block (9) is rotatably connected to the lower end of the base (1) via a rotating shaft (12), and the two connecting components are respectively hingedly matched with the mounting block (9) via reset hinges (14), and the two connecting components are vertically distributed, and constraint rods (8) are respectively penetrated at the four corners of the upper end of the base (1), and two constraint holes (13) matching with the constraint rods (8) are symmetrically provided at the upper end of the mounting block (9).

3. A dry-type power transformer according to claim 2, characterized in that: The connecting assembly comprises a connecting plate (10) and a connecting sleeve (7) slidably mounted on the outside of the connecting plate (10); the connecting plate (10) is provided with a roller (15) so as to move and rotate away from the connecting sleeve (7); the connecting sleeve (7) is hingedly matched with the mounting block (9); a mounting groove is provided at the lower end of the connecting plate (10); a slide plate (21) is slidably mounted inside the mounting groove; the upper end of the slide plate (21) is connected to the top surface of the mounting groove through a spring (17); a slide bar (18) is fixedly mounted on the upper end of the slide bar (21); the upper end of the slide bar (18) movably passes through the mounting groove and is provided with a mounting plate (16); a strip groove matching the slide bar (18) is provided on the upper end surface of the connecting sleeve (7); a positioning piece (19) is provided at the end of the mounting plate (16); and a positioning hole (11) matching the positioning piece (19) is provided on the upper end surface of the connecting sleeve (7).

4. A dry-type power transformer according to claim 3, characterized in that: There are a plurality of positioning holes (11), and the plurality of positioning holes (11) are distributed linearly.

5. A dry-type power transformer according to claim 3, characterized in that: The positioning member (19) is a bolt and is threadably connected to the mounting plate (16); a handle (20) is fixedly provided on the upper end of the mounting plate (16).

6. A dry-type power transformer according to claim 3, characterized in that: A circular ring is fixedly provided at the upper end of the restraining rod (8); the lower end of the restraining rod (8) is in a conical shape; the restraining rod (8) is threadedly connected to the base (1); and the restraining hole (13) is a frustum hole.

7. A dry-type power transformer according to claim 1, characterized in that: The reinforcing rods (5) are fixedly connected to the base brackets (4) via clamps (6).

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