A transformer short-circuit testing device

Abstract

This application relates to the technical field of transformer testing equipment, specifically disclosing a transformer short-circuit testing device. Addressing the problem that existing testing equipment cannot rapidly cool the tested parts of the transformer after testing, the following solution is proposed: a workbench and a transformer tester; a frame, fixedly mounted on the top of the workbench, with a toolbox fixedly mounted on the frame, a first motor fixedly mounted on the top of the toolbox, and the transformer tester disposed on one side of the frame; a lowering mechanism disposed inside the toolbox; a blowing cooling mechanism disposed on the lowering mechanism; a clamping mechanism disposed on the workbench; and an adjusting mechanism disposed on the workbench. The lowering mechanism includes a second rotating rod. This application enables rapid cooling of the tested parts of the transformer after testing.

Description

Technical Field

[0001] This application relates to the field of transformer testing equipment technology, and in particular to a transformer short-circuit testing device. Background Technology

[0002] Transformer short-circuit test equipment is a basic item in routine testing projects, comparing the short-circuit impedance values ​​measured before and after the transformer is subjected to a short-circuit current.

[0003] However, existing testing equipment cannot quickly cool the tested parts of the transformer after testing. To address this issue, a transformer short-circuit testing device has been proposed. Utility Model Content

[0004] To address the problem that existing testing equipment cannot quickly cool the tested parts of a transformer after testing, this application provides a transformer short-circuit testing device.

[0005] The transformer short-circuit testing device provided in this application adopts the following technical solution:

[0006] A transformer short-circuit testing device, comprising:

[0007] Workbench and transformer tester;

[0008] A frame is fixedly installed on the top of the workbench. A toolbox is fixedly installed on the frame. A first motor is fixedly installed on the top of the toolbox. A transformer tester is located on one side of the frame.

[0009] The lowering mechanism is located inside the toolbox;

[0010] A blowing cooling mechanism is mounted on the lowering mechanism;

[0011] Clamping mechanism, which is mounted on the worktable;

[0012] Adjustment mechanism, which is set on the workbench.

[0013] Furthermore, the lowering mechanism includes a second rotating rod, on which a convex plate is fixedly mounted. A groove is formed on the convex plate, and a fourth rotating rod is slidably mounted on the groove. A support seat is rotatably mounted on the fourth rotating rod, and a connecting rod is fixedly mounted on the support seat. A circular box is fixedly mounted on the connecting rod, and a spring is sleeved on the connecting rod. The two ends of the spring are respectively fixedly mounted on the toolbox and the support seat. A bevel gear transmission mechanism is provided on the second rotating rod.

[0014] Furthermore, the air-blowing cooling mechanism includes fan blades, a first straight rod fixedly mounted on the fan blades, a spur gear fixedly mounted on the first straight rod, a ring rack meshing with the spur gear, a fixed rod movably mounted on the first straight rod, a second straight rod fixedly mounted on the fixed rod, and a fourth motor disposed inside the circular box, the output shaft of the fourth motor being fixedly connected to one end of the second straight rod.

[0015] Furthermore, the adjustment mechanism includes two first fixed plates, both of which are fixedly installed on the bottom of the worktable. A lead screw is rotatably installed between the two first fixed plates, and a first straight block is threaded onto the lead screw. Two second fixed plates are fixedly installed on the bottom of the worktable, and a round rod is fixedly installed between the two second fixed plates. A second straight block is movably installed on the round rod. A second motor is fixedly installed on one of the two first fixed plates, and the output shaft of the second motor is fixedly connected to one end of the lead screw.

[0016] Furthermore, the clamping mechanism includes two clamping plates, one end of each clamping plate is fixedly mounted with a support rod, and the same bidirectional screw is threaded onto each of the two support rods, with the two clamping plates cooperating with each other.

[0017] Furthermore, the bidirectional screw is rotatably mounted with the first straight block and the second straight block, and a third motor is fixedly mounted on the first straight block. The output shaft of the third motor is fixedly connected to one end of the bidirectional screw.

[0018] Furthermore, the bevel gear transmission mechanism includes a first bevel gear and a second bevel gear, which mesh with each other. The second bevel gear is fixedly mounted on a second rotating rod, and a first rotating rod is fixedly mounted on the first bevel gear. One end of the first rotating rod is fixedly connected to the output shaft of the first motor.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. In this solution, the transformer is placed on the workbench. The lead screw rotates, which in turn moves the first straight block. At the same time, the second straight block slides on the round rod and moves to the appropriate position. The third motor then drives the bidirectional screw to rotate, which in turn moves the two support rods relative to each other. The two support rods then move the two clamping plates relative to each other. The two clamping plates hold the transformer in place, preventing it from shifting during testing.

[0021] 2. In this scheme, the second straight rod is driven to rotate by the fourth motor. The second straight rod drives the fixed rod, the first straight rod, and the spur gear to make circular motion in the ring rack. Since the spur gear meshes with the ring rack and rotates, the spur gear drives the first straight rod and the fan blade to rotate. The fan blade rotates and blows air to cool the transformer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0023] Figure 2 This is a partial overall structural schematic diagram of Embodiment 1 of this application;

[0024] Figure 3 This is a schematic diagram showing the connection between the lowering mechanism and the bevel gear transmission mechanism in Embodiment 1 of this application;

[0025] Figure 4 This is a schematic diagram of the downward moving mechanism in Embodiment 1 of this application.

[0026] Reference numerals: 1. First motor; 2. Toolbox; 3. Frame; 4. Workbench; 5. Transformer tester; 6. Fan blade; 7. Round box; 8. Connecting rod; 9. First fixing plate; 10. Second fixing plate; 11. First straight block; 12. Second motor; 13. Third motor; 14. Lead screw; 15. Double-acting screw; 16. Clamping plate; 17. Support rod; 18. Round rod; 19. First rotating rod; 20. First bevel gear; 21. Second bevel gear; 22. Second rotating rod; 23. Cam; 24. Fourth rotating rod; 25. Support seat; 26. Spring; 27. Fixing rod; 28. First straight rod; 29. ​​Spur gear; 30. Ring rack; 31. Second straight rod. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0028] Example 1

[0029] An installation method for a transformer short-circuit testing device is described in reference. Figure 1 ,include:

[0030] Workbench 4;

[0031] The frame 3 is fixedly installed on the top of the workbench 4. The toolbox 2 is fixedly installed on the frame 3. The first motor 1 is fixedly installed on the top of the toolbox 2. The transformer tester 5 is located on one side of the frame 3. The model of the transformer tester 5 is FLDRB-A.

[0032] The lowering mechanism is located inside toolbox 2;

[0033] A blowing cooling mechanism is mounted on the lowering mechanism;

[0034] A clamping mechanism is mounted on the worktable 4.

[0035] Adjustment mechanism, which is located on workbench 4.

[0036] Reference Figure 3 The lowering mechanism includes a second rotating rod 22, on which a cam 23 is fixedly mounted. A groove is provided on the cam 23, and a fourth rotating rod 24 is slidably mounted on the groove. A support seat 25 is rotatably mounted on the fourth rotating rod 24. A connecting rod 8 is fixedly mounted on the support seat 25. A round box 7 is fixedly mounted on the connecting rod 8. A spring 26 is sleeved on the connecting rod 8. The two ends of the spring 26 are fixedly mounted on the toolbox 2 and the support seat 25, respectively. A bevel gear transmission mechanism is provided on the second rotating rod 22.

[0037] Reference Figure 4 The air-blowing cooling mechanism includes a fan blade 6, a first straight rod 28 fixedly mounted on the fan blade 6, a spur gear 29 fixedly mounted on the first straight rod 28, a ring rack 30 meshing on the spur gear 29, a fixed rod 27 movably mounted on the first straight rod 28, a second straight rod 31 fixedly mounted on the fixed rod 27, and a fourth motor is installed inside the circular box 7. The output shaft of the fourth motor is fixedly connected to one end of the second straight rod 31.

[0038] Reference Figure 2 The adjustment mechanism includes two first fixed plates 9, both of which are fixedly installed on the bottom of the worktable 4. A lead screw 14 is rotatably installed between the two first fixed plates 9, and a first straight block 11 is threaded onto the lead screw 14. Two second fixed plates 10 are fixedly installed on the bottom of the worktable 4, and a round rod 18 is fixedly installed between the two second fixed plates 10. A second straight block is movably installed on the round rod 18. A second motor 12 is fixedly installed on one of the two first fixed plates 9, and the output shaft of the second motor 12 is fixedly connected to one end of the lead screw 14.

[0039] Reference Figure 2 The clamping mechanism includes two clamping plates 16, one end of each clamping plate 16 is fixedly mounted with a support rod 17, and the same bidirectional screw 15 is threaded onto each of the two support rods 17. The two clamping plates 16 are engaged with each other.

[0040] Reference Figure 1 and Figure 2 The bidirectional screw 15 is rotatably mounted with the first straight block 11 and the second straight block. A third motor 13 is fixedly mounted on the first straight block 11, and the output shaft of the third motor 13 is fixedly connected to one end of the bidirectional screw 15.

[0041] Reference Figure 3The bevel gear transmission mechanism includes a first bevel gear 20 and a second bevel gear 21, which mesh with each other. The second bevel gear 21 is fixedly mounted on a second rotating rod 22. A first rotating rod 19 is fixedly mounted on the first bevel gear 20, and one end of the first rotating rod 19 is fixedly connected to the output shaft of the first motor 1.

[0042] The implementation principle of a transformer short-circuit testing device in this embodiment is as follows: The transformer is placed on the workbench 4. A second motor 12 drives a lead screw 14 to rotate, which in turn moves a first straight block 11. Simultaneously, the second straight block slides on a round rod 18, moving to a suitable position. A third motor 13 drives a bidirectional screw 15 to rotate, which in turn moves two support rods 17 relative to each other. The two support rods 17 then move two clamping plates 16 relative to each other, clamping the transformer to prevent it from shifting during testing. A transformer tester 5 performs a short-circuit test on the transformer. After the test, the tested part of the transformer becomes hot and cannot dissipate heat quickly. The first motor... 1 drives the first rotating rod 19 to rotate, the first rotating rod 19 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the cam 23 and the second rotating rod 22 to rotate, the second rotating rod 22 drives the fourth rotating rod 24 and the support seat 25 to move downward, the support seat 25 drives the connecting rod 8 and the round box 7 to move downward, and the fourth motor drives the second straight rod 31 to rotate, the second straight rod 31 drives the fixed rod 27, the first straight rod 28 and the spur gear 29 to make a circular motion in the ring rack 30. Since the spur gear 29 meshes with the ring rack 30 and rotates, the spur gear 29 drives the first straight rod 28 and the fan blade 6 to rotate, and the fan blade 6 rotates to blow air to cool the transformer.

[0043] Example 2

[0044] The difference between this embodiment and Embodiment 1 is that: both ends of the clamping plate 16 are provided with telescopic rods, and one end of each telescopic rod is fixedly installed with an L-shaped plate. By manually pulling open the L-shaped plate, it can be used for transformers of different sizes.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transformer short-circuit testing device, characterized in that... :include: Workbench (4) and transformer tester (5); A frame (3) is fixedly installed on the top of a workbench (4). A toolbox (2) is fixedly installed on the frame (3). A first motor (1) is fixedly installed on the top of the toolbox (2). A transformer tester (5) is set on one side of the frame (3). The lowering mechanism is located inside the toolbox (2); A blowing cooling mechanism is mounted on the lowering mechanism; A clamping mechanism is provided on the worktable (4); Adjustment mechanism, which is set on the workbench (4).

2. The transformer short-circuit testing device according to claim 1, characterized in that... The lowering mechanism includes a second rotating rod (22), on which a convex plate (23) is fixedly installed. A sliding groove is provided on the convex plate (23), and a fourth rotating rod (24) is slidably installed on the sliding groove. A support seat (25) is rotatably installed on the fourth rotating rod (24), and a connecting rod (8) is fixedly installed on the support seat (25). A round box (7) is fixedly installed on the connecting rod (8), and a spring (26) is sleeved on the connecting rod (8). The two ends of the spring (26) are respectively fixedly installed on the toolbox (2) and the support seat (25). A bevel gear transmission mechanism is provided on the second rotating rod (22).

3. The transformer short-circuit testing device according to claim 2, characterized in that... The blowing cooling mechanism includes a fan blade (6), a first straight rod (28) is fixedly installed on the fan blade (6), a spur gear (29) is fixedly installed on the first straight rod (28), a ring rack (30) meshes on the spur gear (29), a fixed rod (27) is movably installed on the first straight rod (28), a second straight rod (31) is fixedly installed on the fixed rod (27), and a fourth motor is provided inside the round box (7), the output shaft of the fourth motor is fixedly connected to one end of the second straight rod (31).

4. A transformer short-circuit testing device according to claim 3, characterized in that... The adjustment mechanism includes two first fixing plates (9), both of which are fixedly installed on the bottom of the workbench (4). A lead screw (14) is rotatably installed between the two first fixing plates (9). A first straight block (11) is threaded onto the lead screw (14). Two second fixing plates (10) are fixedly installed on the bottom of the workbench (4). A round rod (18) is fixedly installed between the two second fixing plates (10). A second straight block is movably installed on the round rod (18). A second motor (12) is fixedly installed on one of the two first fixing plates (9). The output shaft of the second motor (12) is fixedly connected to one end of the lead screw (14).

5. A transformer short-circuit testing device according to claim 4, characterized in that... The clamping mechanism includes two clamping plates (16), one end of each clamping plate (16) is fixedly mounted with a support rod (17), and the same bidirectional screw (15) is threaded onto each of the two support rods (17), and the two clamping plates (16) cooperate with each other.

6. A transformer short-circuit testing device according to claim 5, characterized in that... The bidirectional screw (15) is rotatably mounted with the first straight block (11) and the second straight block. A third motor (13) is fixedly mounted on the first straight block (11), and the output shaft of the third motor (13) is fixedly connected to one end of the bidirectional screw (15).

7. A transformer short-circuit testing device according to claim 6, characterized in that... The bevel gear transmission mechanism includes a first bevel gear (20) and a second bevel gear (21), which mesh with each other. The second bevel gear (21) is fixedly mounted on a second rotating rod (22), and a first rotating rod (19) is fixedly mounted on the first bevel gear (20). One end of the first rotating rod (19) is fixedly connected to the output shaft of the first motor (1).

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