Motor armature winding turn-to-turn short circuit reconnaissance device

Abstract

The invention discloses a motor armature winding turn-to-turn short circuit reconnaissance device, and relates to the technical field of permanent magnet generator fault detection, the motor armature winding turn-to-turn short circuit reconnaissance device comprises a support table, the top of the support table is connected with a heat dissipation seat through an angle adjusting mechanism, and a current transformer is fixed on the heat dissipation seat through a first centering locking structure; an ampere meter is fixed to the top of the supporting table through a second centering locking structure, a heat dissipation assembly is arranged on the heat dissipation base, and the heat dissipation assembly comprises heat dissipation fins and a heat dissipation fan. According to the current transformer, the angle adjusting mechanism is arranged, the angle of the current transformer can be flexibly adjusted in the using process, the current transformer is made to be more suitable for the complex circuit problem during installation, then wiring and winding operation can be conducted in some complex detection environments, and the working efficiency is improved; the internal temperature of the current transformer in a working state can be effectively reduced, so that the situation that the current transformer is burnt out due to high temperature during working can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet generator fault detection, in particular to a motor armature winding turn-to-turn short circuit detection device. Background Art

[0002] With the increasing scarcity of energy, shaft-belt permanent magnet generators have gradually become an important part of modern ship power systems due to their high efficiency, compactness and reliability. However, with the increasing number of shaft-belt permanent magnet motors in practical applications, their potential failure risks have also attracted attention. For example, due to manufacturing defects and operating wear, turn-to-turn short circuit failures may occur in the windings of permanent magnet generators. This failure not only affects the output performance of the generator, but may also cause problems such as overheating, vibration and noise, and in severe cases, it may cause the entire system to fail.

[0003] At present, when conducting armature winding inter-turn short-circuit detection, current transformers and ammeters are mainly used for detection. However, during the detection process, after the current transformer is installed, it is not convenient to flexibly adjust the angle of the current transformer. As a result, in some complex detection environments, it is difficult to perform wiring and winding operations, which reduces work efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a motor armature winding inter-turn short-circuit detection device, which effectively solves the problem that during the detection process, after the current transformer is installed, it is inconvenient to flexibly adjust the angle of the current transformer, and further in some complex detection environments, it is difficult to perform wiring and winding operations, thereby reducing work efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A motor armature winding inter-turn short circuit detection device comprises a support platform, the top of the support platform is connected to a heat sink through an angle adjustment mechanism, a current transformer is fixed on the heat sink through a first centering locking structure, and an ammeter is fixed on the top of the support platform through a second centering locking structure;

[0007] The heat sink is provided with a heat sink assembly, and the heat sink assembly includes heat sink fins fixedly connected to the upper side wall of the top of the heat sink and a heat sink fan fixedly installed on the lower side wall of the top of the heat sink;

[0008] As a preferred technical solution of the present invention, the angle adjustment mechanism includes an angle adjustment shaft rotatably mounted on the top of the support platform, a bearing seat fixedly connected to the lower side wall of the top of the support platform, a control shaft rotatably mounted on the bearing seat, a worm fixedly mounted on the control shaft, and a worm wheel fixedly mounted on the angle adjustment shaft and meshing with the worm.

[0009] As a preferred technical solution of the present invention, the top end of the angle adjustment shaft is welded to the bottom outer wall of the heat sink, and the front end of the control shaft is fixedly connected to a hand wheel No. 1.

[0010] As a preferred technical solution of the present invention, the first centering locking structure includes a No. 1 bidirectional screw rotatably installed in the heat dissipation seat, two T-shaped clamping rods symmetrically threaded on the two opposite threaded ends of the No. 1 bidirectional screw, and a No. 2 handwheel fixedly connected to the front end of the No. 1 bidirectional screw.

[0011] As a preferred technical solution of the present invention, two slideways are symmetrically provided on the top of the heat sink, and the outer walls of the two T-shaped clamping rods are slidably connected to the inner walls of the two slideways respectively.

[0012] As a preferred technical solution of the present invention, the second centering locking structure includes a guide groove opened on the top of the support platform, a No. 2 bidirectional screw rotatably installed in the guide groove, and two T-shaped locking rods symmetrically threaded on the two opposite threaded ends of the No. 2 bidirectional screw.

[0013] As a preferred technical solution of the present invention, the outer walls of the two T-shaped locking rods are slidably connected to the inner wall of the guide groove, and the front end of the No. 2 bidirectional screw is fixedly connected to the No. 3 handwheel.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention is provided with an angle adjustment mechanism, which can flexibly adjust the angle of the current transformer during use, so that it can be more adaptable to complex line problems during installation, and can perform wiring and winding operations in some complex detection environments, thereby improving work efficiency;

[0016] 2. The present invention can effectively reduce the internal temperature of the current transformer in the working state by assembling the current transformer on a heat sink with a heat dissipation component, thereby preventing the current transformer from being burned due to high temperature during operation;

[0017] 3. The present invention adopts the first centering locking structure to fix the current transformer, and adopts the second centering locking structure to fix the ammeter. This locking method can not only stably fix the current transformer and the ammeter to ensure the stability during the short-circuit detection process, but also facilitates disassembly and maintenance, thereby improving disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the overall front-view three-dimensional structure of the present invention;

[0020] Figure 2 It is a three-dimensional enlarged structural schematic diagram of the heat dissipation component on the heat dissipation seat in the present invention;

[0021] Figure 3 It is a structural schematic diagram of the present invention as a whole;

[0022] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the angle adjustment mechanism in the present invention;

[0023] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the second centering locking structure in the present invention.

[0024] In the figure: 1. Support table; 2. Heat sink; 3. Current transformer; 4. Ammeter; 5. Heat sink fins; 6. Cooling fan; 7. Angle adjustment shaft; 8. Bearing seat; 9. Control shaft; 10. Worm; 11. Worm gear; 12. Handwheel No. 1; 13. Bidirectional screw No. 1; 14. T-type clamping rod; 15. Slideway; 16. Handwheel No. 2; 17. Guide groove; 18. Bidirectional screw No. 2; 19. T-type locking rod; 20. Handwheel No. 3. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1, reference Figure 1-4 , a motor armature winding inter-turn short circuit detection device, comprising a support platform 1, the top of the support platform 1 is connected to a heat sink 2 through an angle adjustment mechanism, a current transformer 3 is fixed on the heat sink 2 through a first centering locking structure, and an ammeter 4 is fixed on the top of the support platform 1 through a second centering locking structure;

[0027] In this embodiment, a heat dissipation assembly is provided on the heat dissipation seat 2, and the heat dissipation assembly includes a heat dissipation fin 5 fixedly connected to the upper side wall of the top of the heat dissipation seat 2 and a heat dissipation fan 6 fixedly installed on the lower side wall of the top of the heat dissipation seat 2;

[0028] Then, by assembling the current transformer 3 onto the heat sink 2 with the heat dissipation component, the internal temperature of the current transformer 3 in the working state can be effectively reduced, thereby preventing the current transformer 3 from being burned due to high temperature during operation;

[0029] In this embodiment, the angle adjustment mechanism includes an angle adjustment shaft 7 rotatably mounted on the top of the support platform 1, a bearing seat 8 fixedly connected to the lower side wall of the top of the support platform 1, a control shaft 9 rotatably mounted on the bearing seat 8, a worm 10 fixedly mounted on the control shaft 9, and a worm wheel 11 fixedly mounted on the angle adjustment shaft 7 and meshing with the worm 10;

[0030] Furthermore, the top end of the angle adjustment shaft 7 is welded to the bottom outer wall of the heat sink 2, and the front end of the control shaft 9 is fixedly connected to a first hand wheel 12;

[0031] When the angle adjustment mechanism is in use: the worm 10 on the control shaft 9 is driven to rotate through the No. 1 handwheel 12, and then the worm wheel 11 engaged with the worm 10 will drive the heat sink 2 fixed on the top of the angle adjustment shaft 7 to rotate, so that the angle of the current transformer 3 fixed on the heat sink 2 can be flexibly adjusted, making it more adaptable to complex line problems during installation, and then wiring and winding operations can be performed in some complex detection environments, thereby improving work efficiency.

[0032] Example 2, reference Figure 2-3 and Figure 5 This embodiment is optimized on the basis of embodiment 1, specifically:

[0033] In this embodiment, the first centering locking structure includes a No. 1 bidirectional screw 13 rotatably mounted in the heat sink 2, two T-shaped clamping rods 14 symmetrically threaded on two opposite threaded ends of the No. 1 bidirectional screw 13, and a No. 2 hand wheel 16 fixedly connected to the front end of the No. 1 bidirectional screw 13;

[0034] Furthermore, two slideways 15 are symmetrically provided on the top of the heat sink 2, and the outer walls of the two T-shaped clamping rods 14 are slidably connected to the inner walls of the two slideways 15 respectively;

[0035] When in use: by placing the current transformer 3 on the heat sink 2, the No. 1 bidirectional screw 13 is controlled to rotate by the No. 2 hand wheel 16, and then under the limit of the two slideways 15, the two T-shaped clamping rods 14 threadedly connected to the No. 1 bidirectional screw 13 will be aligned and close to lock the current transformer 3;

[0036] In this embodiment, the second centering locking structure includes a guide groove 17 opened on the top of the support platform 1, a second bidirectional screw 18 rotatably installed in the guide groove 17, and two T-shaped locking rods 19 symmetrically screwed on two opposite threaded ends of the second bidirectional screw 18;

[0037] Furthermore, the outer walls of the two T-shaped locking rods 19 are slidably connected to the inner wall of the guide groove 17, and the front end of the second bidirectional screw 18 is fixedly connected to the third hand wheel 20;

[0038] When in use: place the ammeter 4 on the support platform 1, and use the No. 3 handwheel 20 to control the rotation of the No. 2 bidirectional screw 18. Under the guidance of the guide groove 17, the two T-shaped locking rods 19 threadedly connected to the No. 2 bidirectional screw 18 will align and move together to lock and fix the ammeter 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor armature winding inter-turn short circuit detection device, comprising a support platform (1), characterized in that: The top of the support platform (1) is connected to a heat sink (2) via an angle adjustment mechanism, a current transformer (3) is fixed to the heat sink (2) via a first centering locking structure, and an ammeter (4) is fixed to the top of the support platform (1) via a second centering locking structure; The heat sink (2) is provided with a heat sink assembly, and the heat sink assembly comprises heat sink fins (5) fixedly connected to the upper side wall of the top of the heat sink (2) and a heat sink fan (6) fixedly installed on the lower side wall of the top of the heat sink (2).

2. A motor armature winding turn-to-turn short circuit detection device according to claim 1, characterized in that: The angle adjustment mechanism comprises an angle adjustment shaft (7) rotatably mounted on the top of the support platform (1), a bearing seat (8) fixedly connected to the lower side wall of the top of the support platform (1), a control shaft (9) rotatably mounted on the bearing seat (8), a worm (10) fixedly mounted on the control shaft (9), and a worm wheel (11) fixedly mounted on the angle adjustment shaft (7) and meshing with the worm (10).

3. A motor armature winding turn-to-turn short circuit detection device according to claim 2, characterized in that: The top end of the angle adjustment shaft (7) is welded to the bottom outer wall of the heat sink (2), and the front end of the control shaft (9) is fixedly connected to a first hand wheel (12).

4. The motor armature winding turn-to-turn short circuit detection device according to claim 1, characterized in that: The first centering locking structure comprises a first bidirectional screw (13) rotatably mounted in the heat sink (2), two T-shaped clamping rods (14) symmetrically threadedly connected to two opposite threaded ends of the first bidirectional screw (13), and a second hand wheel (16) fixedly connected to the front end of the first bidirectional screw (13).

5. A motor armature winding turn-to-turn short circuit detection device according to claim 4, characterized in that: Two slideways (15) are symmetrically provided on the top of the heat sink (2), and the outer walls of the two T-shaped clamping rods (14) are slidably connected to the inner walls of the two slideways (15) respectively.

6. The motor armature winding turn-to-turn short circuit detection device according to claim 1, characterized in that: The second centering locking structure comprises a guide groove (17) opened on the top of the support platform (1), a second bidirectional screw (18) rotatably mounted in the guide groove (17), and two T-shaped locking rods (19) symmetrically threadedly connected to two opposite threaded ends of the second bidirectional screw (18).

7. A motor armature winding turn-to-turn short circuit detection device according to claim 6, characterized in that: The outer walls of the two T-shaped locking rods (19) are slidably connected to the inner wall of the guide groove (17), and the front end of the No. 2 bidirectional screw (18) is fixedly connected to the No. 3 hand wheel (20).

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