Transformer fault diagnosis device and diagnosis method

Abstract

The present invention belongs to the technical field of transformer monitoring equipment, and in particular, is a transformer fault diagnosis equipment and diagnosis method, comprising symmetrically arranged support columns, a lifting mechanism is arranged below the two support columns, an adjustment mechanism is arranged at the upper end of the lifting mechanism, a detection mechanism is arranged at the upper end of the adjustment mechanism, a transformer is fixedly connected between the two support columns, and one side of the detection mechanism is in contact with one side of the transformer. The diagnostic equipment, by setting the detection mechanism, the noise reduction block can effectively reduce the background noise in the detection process, improve the signal quality and the accuracy of the detection, and the negative pressure hole, telescopic rod, spring and negative pressure tube together constitute a negative pressure suction system, which can tightly adsorb the detector on the surface of the transformer, further reduce the interference of external noise, and ensure the stable contact between the detector and the surface of the transformer, so as to obtain more accurate detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer monitoring equipment, and in particular to a transformer fault diagnosis device and a diagnosis method. Background Art

[0002] The transformer fixed diagnostic monitoring equipment is a device used to monitor and diagnose the operating status of the transformer. It can monitor the transformer's electrical parameters, temperature, vibration and other indicators in real time, and judge the transformer's health status and potential faults through data analysis and algorithms.

[0003] Through the use of fixed transformer diagnostic monitoring equipment, potential faults and abnormal conditions of the transformer can be discovered in time, maintenance measures can be taken in advance, power outages or equipment damage caused by faults can be avoided, and the reliability and operating efficiency of the transformer can be improved.

[0004] Some existing transformers are generally installed outdoors at a certain height. The inspection of transformers at high places is carried out by lifting workers to the corresponding height, and then taking out the equipment to inspect the transformer. Especially when inspecting transformers in operation, not only is partial discharge fault detection performed, external noise will affect the detection data, but there may also be leakage at any time, which will cause safety problems for workers during inspection.

[0005] In view of the above problems, the present invention proposes a transformer fault diagnosis device and a diagnosis method. Summary of the invention

[0006] Based on the existing transformer fault detection technology problems, the present invention proposes a transformer fault diagnosis device and a diagnosis method.

[0007] A transformer fault diagnosis device proposed in the present invention comprises symmetrically arranged support columns, a lifting mechanism is arranged below two of the support columns, an adjustment mechanism is arranged at the upper end of the lifting mechanism, a detection mechanism is arranged at the upper end of the adjustment mechanism, a transformer is fixedly connected between the two support columns, and one side of the detection mechanism is in contact with one side of the transformer.

[0008] The lifting mechanism realizes the lifting and lowering action of the detection mechanism.

[0009] The adjusting mechanism realizes the action of adjusting the horizontal position and height of the detecting mechanism.

[0010] The detection mechanism realizes the action of detecting the transformer.

[0011] Preferably, the lifting mechanism comprises a crawler vehicle, the upper end of the crawler vehicle is fixedly connected to a hydraulic rod, the upper end of the hydraulic rod is fixedly connected to a hydraulic rotary cylinder, and the rotating part of the hydraulic rotary cylinder is fixedly connected to a connecting column.

[0012] Preferably, the adjusting mechanism includes a supporting platform, the lower surface of the supporting platform is fixedly connected to the upper end of the connecting column, and the two sides of the supporting platform are respectively fixedly connected with a first screw rod, one end of the threaded rod of the two first screw rods extends to the outside, a second screw rod is fixedly connected between the screw rod nuts of the two first screw rods, and the threaded rod of the second screw rod slides back and forth just above the supporting platform, and bearings are symmetrically arranged on one side of the supporting platform along the central axis, a rotating rod is fixedly connected between the inner rings of the two bearings, the two ends of the rotating rod extend to the ends of the two first screw rods, and the two ends of the rotating rod are respectively fixedly connected with a first gear, the two first gears are respectively meshed with a second gear, and one side of the two second gears is respectively fixedly connected to one end of the threaded rod of the two first screw rods, and the mutually meshing first gear and second gear are perpendicular to each other.

[0013] Preferably, the motor of one of the first screw rods is perpendicular to its threaded rod, and the motor end of one of the first screw rods is transmission-connected to its threaded rod by two gears perpendicular to each other.

[0014] Preferably, the detection mechanism comprises a fixed tube, one end of the fixed tube is fixedly connected with a joint, one side of the joint is provided with a circular slide groove, a noise reduction block is arranged in a circumferential array on one side of the joint, the surface of each noise reduction block is slidably connected to the groove surface of the circular slide groove, the inner wall of the fixed tube is fixedly connected with a detector, the tube body of the fixed tube is provided with a negative pressure hole in a circumferential array, one end of the negative pressure hole extends to the outer side surface of the noise reduction block through the joint, a telescopic rod is arranged inside the negative pressure hole where the joint is located, the rod body at one end of each of the telescopic rods is located in the circular slide groove, one end of each of the telescopic rods is fixedly connected to the side surface of each of the noise reduction blocks, a spring is arranged inside each of the telescopic rods, the two ends of each of the springs are respectively fixedly connected to the inner walls at both ends of each of the telescopic rods, a negative pressure tube is movably sleeved inside each of the springs, and the inner wall at one end of each of the negative pressure tubes is respectively fixedly connected to the hole wall of the negative pressure hole where each of the noise reduction blocks is located.

[0015] Preferably, the other end of the fixed tube is fixedly connected to a V-shaped rod, a brushless motor gimbal is arranged below the V-shaped rod, a cylinder is arranged below the brushless motor gimbal, the cylinder rod of the cylinder is fixedly connected to the lower end of the brushless motor gimbal, and the lower end of the cylinder is fixedly connected to the screw nut of the second screw rod.

[0016] Preferably, a sealing layer is applied on the surface of the noise reduction block and the groove surface of the circular slide groove.

[0017] Preferably, the noise reduction block is made of rubber.

[0018] Preferably, a viscoelastic damping material is provided on the surface of the fixed tube, and a sound insulation board adapted thereto is provided at an opening at one end of the fixed tube.

[0019] Preferably, the diagnostic method of the transformer fault diagnostic device comprises the following operating steps:

[0020] Step 1: Control the crawler vehicle to move between the two support columns through the remote terminal. The hydraulic rod drives the hydraulic rotary cylinder to continue to rise until the upper surface of the support platform contacts the lower surface of the transformer. Then continue to adjust the crawler vehicle to a balanced state. The hydraulic rotary cylinder drives the connecting column to rotate, thereby driving the support platform to rotate, and adjust the detection mechanism on the upper surface of the support platform to be perpendicular to the transformer.

[0021] Step 2: The first screw drives the screw nut to drive the second screw to slide on the upper surface of the supporting platform, and the brushless motor pan-tilt controls the fixed tube to rotate until the side of the noise reduction block contacts the surface of the transformer, the first screw and the second screw as well as the brushless motor pan-tilt stop working, the cylinder drives the detection mechanism to rise to the specified position of the transformer and stop, the first screw is driven again, driving the second screw closer to the transformer, the noise reduction block is squeezed, shrinks and slides into the circular slide groove of the joint, and squeezes the telescopic rod embedded in the negative pressure hole to shrink, thereby driving the negative pressure tube in the telescopic rod to shrink;

[0022] Step 3: The negative pressure hole and the detector start working. The negative pressure generated by the negative pressure hole makes the noise reduction block tightly adsorbed on the surface of the transformer. The detector uploads the detected data to the remote display. If the detector does not detect abnormal data of partial discharge in the transformer at the location where the detector is located, the first screw rod, the second screw rod, the cylinder and the brushless motor pan / tilt work at the same time to move the detector to the next detection position of the transformer. If the detector has detected the partial discharge position inside the transformer, the detector remains stationary on the outer surface of the transformer. After the abnormal data generated by the partial discharge is collected, the remote control end controls the hydraulic rod to descend, and all equipment returns to its original state.

[0023] The beneficial effects of the present invention are:

[0024] 1. By setting up the lifting mechanism, the crawler vehicle provides a stable mobile platform, which can move smoothly on different ground surfaces while maintaining the stability of the detection mechanism. The height of the detection mechanism can be adjusted by the extension and retraction of the hydraulic rod, so that it can adapt to the needs of transformer detection at different heights. The rotating part of the hydraulic rotary cylinder can make the detection mechanism rotate in the horizontal plane, so that the transformer can be detected from different angles, which increases the flexibility and range of detection.

[0025] 2. By setting up the adjustment mechanism, the detection mechanism can be driven to make precise adjustments in three dimensions, making the detection work of the detection mechanism on the transformer more efficient and accurate.

[0026] 3. By setting up the detection mechanism, the noise reduction block can effectively reduce the background noise in the detection process, improve the signal quality and detection accuracy. The negative pressure hole, telescopic rod, spring and negative pressure tube together constitute a negative pressure suction system, which can tightly adsorb the detector on the surface of the transformer, further reduce the interference of external noise, and ensure stable contact between the detector and the surface of the transformer, so as to obtain more accurate detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0028] Figure 2 This is a right view of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0029] Figure 3 A three-dimensional diagram of an adjustment mechanism of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0030] Figure 4 A transformer fault diagnosis device and a diagnosis method proposed by the present invention Figure 3 The enlarged view of point A in the middle;

[0031] Figure 5 A transformer fault diagnosis device and a diagnosis method proposed by the present invention Figure 3 The enlarged view of point B in the middle;

[0032] Figure 6 A three-dimensional diagram of a detection mechanism of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0033] Figure 7 A cross-sectional view of a connector of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0034] Figure 8 A transformer fault diagnosis device and a diagnosis method proposed by the present invention Figure 7 Enlarged view of point C in the middle;

[0035] Fig. 9 A bearing position diagram of a transformer fault diagnosis device and a diagnosis method proposed by the present invention;

[0036] Fig.10 A transformer fault diagnosis device and a diagnosis method proposed by the present invention Fig. 9 Enlarged view of point D in the middle.

[0037] In the figure: 1. support column; 2. lifting mechanism; 21. crawler; 22. hydraulic rod; 23. hydraulic rotary cylinder; 24. connecting column; 3. adjustment mechanism; 31. support platform; 32. first screw rod; 33. second screw rod; 34. bearing; 35. rotating rod; 36. first gear; 37. second gear; 4. detection mechanism; 41. fixed pipe; 42. joint; 43. noise reduction block; 44. negative pressure hole; 45. telescopic rod; 46. negative pressure pipe; 47. spring; 48. V-rod; 49. brushless motor pan / tilt; 410. cylinder; 411. detector; 5. transformer. DETAILED DESCRIPTION

[0038] 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.

[0039] Reference Figure 1-Figure 10 A transformer fault diagnosis device comprises symmetrically arranged support columns 1, a lifting mechanism 2 is arranged below the two support columns 1, an adjusting mechanism 3 is arranged at the upper end of the lifting mechanism 2, a detection mechanism 4 is arranged at the upper end of the adjusting mechanism 3, a transformer 5 is fixedly connected between the two support columns 1, and one side of the detection mechanism 4 is in contact with one side of the transformer 5;

[0040] In order to realize the lifting and lowering action of the lifting mechanism 2 on the detection mechanism 4, the lifting mechanism 2 is provided to include a crawler vehicle 21, the upper end of the crawler vehicle 21 is fixedly connected to a hydraulic rod 22, the upper end of the hydraulic rod 22 is fixedly connected to a hydraulic rotary cylinder 23, and the rotating part of the hydraulic rotary cylinder 23 is fixedly connected to a connecting column 24;

[0041] Specifically implemented in this way, the crawler vehicle 21 provides a stable mobile platform, which can move smoothly on different grounds while maintaining the stability of the detection mechanism 4. The height of the detection mechanism 4 can be adjusted by retracting the hydraulic rod 22, so that it can adapt to the needs of detecting transformers 5 at different heights. The rotating part of the hydraulic rotary cylinder 23 can rotate the detection mechanism 4 in a horizontal plane, so that the transformer 5 can be detected from different angles, increasing the flexibility and range of detection.

[0042] In order to realize the action of adjusting the horizontal position and height of the detection mechanism 4 by the adjustment mechanism 3, the adjustment mechanism 3 is provided to include a support platform 31, the lower surface of the support platform 31 is fixedly connected to the upper end of the connecting column 24, and the first screw rods 32 are fixedly connected to the two sides of the support platform 31 respectively, and one end of the threaded rods of the two first screw rods 32 extends to the outside, and the second screw rod 33 is fixedly connected between the screw nuts of the two first screw rods 32, and the threaded rod of the second screw rod 33 slides back and forth just above the support platform 31, and a bearing 34 is symmetrically arranged on one side of the support platform 31 along the central axis, and a rotating rod 35 is fixedly connected between the inner rings of the two bearings 34, and the two ends of the rotating rod 35 extend to the ends of the two first screw rods 32 respectively, and the two ends of the rotating rod 35 are fixedly connected to the first gear 36 respectively, and the two first gears 36 are meshed with the second gear 37 respectively, and one side of the two second gears 37 is fixedly connected to one end of the threaded rods of the two first screw rods 32 respectively, and the mutually meshing first gear 36 and second gear 37 are perpendicular to each other;

[0043] Specifically, by setting the above structure, precise adjustment can be performed in three dimensions, so that the detection mechanism 4 can detect the transformer 5 more efficiently and accurately.

[0044] The motor of one of the first screw rods 32 is perpendicular to the threaded rod, and the motor end of one of the first screw rods 32 is connected to the threaded rod by two gears perpendicular to each other.

[0045] Specifically, by setting the above structure, the motor of the first screw rod 32 can simultaneously drive another first screw rod 32 for transmission. At the same time, the two different first screw rods 32 are driven by gears, which is relatively simple to maintain and easy to inspect and replace, thereby reducing maintenance costs.

[0046] In order to realize the detection of the transformer 5 by the detection mechanism 4, the detection mechanism 4 is provided to include a fixed tube 41, one end of the fixed tube 41 is fixedly connected to a joint 42, a circular chute is provided on one side of the joint 42, and a noise reduction block 43 is provided in a circumferential array on one side of the joint 42, and the surface of each noise reduction block 43 is slidably connected to the groove surface of the circular chute. The design of the circular chute and the noise reduction block 43 helps to reduce the background noise in the detection process and improve the signal quality and the accuracy of the detection;

[0047] A detector 411 is fixedly connected to the inner wall of the fixed tube 41, and a negative pressure hole 44 is opened in a circumferential array of the tube body of the fixed tube 41. One end of the negative pressure hole 44 extends to the outer side of the noise reduction block 43 through the joint 42. A telescopic rod 45 is arranged inside the negative pressure hole 44 where the joint 42 is located. One end of each telescopic rod 45 is located in a circular slide groove, and one end of each telescopic rod 45 is fixedly connected to the side of each noise reduction block 43, and a spring 47 is arranged inside each telescopic rod 45. The two ends of each spring 47 are fixedly connected to the inner walls of the two ends of each telescopic rod 45, and a negative pressure tube 46 is movably sleeved inside each spring 47. The inner wall of one end of each negative pressure tube 46 is fixedly connected to the hole wall of the negative pressure hole 44 where each noise reduction block 43 is located.

[0048] Specifically, by setting the above-mentioned structure, the design of the telescopic rod 45 and the spring 47 allows the noise reduction block 43 to be adjusted according to the surface shape of the transformer, maintaining close contact with the transformer 5, thereby improving the reliability of detection. The setting of the negative pressure hole 44 and the negative pressure tube 46 can generate negative pressure, which helps to closely adsorb the detector 411 on the surface of the transformer 5, further reducing the interference of external noise.

[0049] The other end of the fixed tube 41 is fixedly connected to a V-shaped rod 48, a brushless motor platform 49 is arranged below the V-shaped rod 48, a cylinder 410 is arranged below the brushless motor platform 49, a cylinder rod of the cylinder 410 is fixedly connected to the lower end of the brushless motor platform 49, and the lower end of the cylinder 410 is fixedly connected to the screw nut of the second screw 33;

[0050] Specifically, by setting the above-mentioned structure, the brushless motor pan-tilt head 49 can provide smooth and precise rotation, so that the detector 411 can rotate 360 ​​degrees on the horizontal plane, further increasing the flexibility of detection. The cylinder 410 can drive the brushless motor pan-tilt head 49 and the fixed tube 41 to rise and fall in the vertical direction, so that the detection instrument can adapt to the requirements of different heights.

[0051] The surface of the noise reduction block 43 and the groove surface of the circular slide groove are both coated with a sealing layer;

[0052] Specifically, by setting the above-mentioned structure, the sealing layer can fill the tiny gap between the noise reduction block and the slide groove, preventing external substances such as gas and dust from entering the detection system, thereby improving the sealing performance of the system, while preventing dust and dirt from entering between the slide groove and the noise reduction block, keeping the interior clean, and avoiding these impurities from interfering with the detection signal.

[0053] The noise reduction block 43 is made of rubber material; in this specific implementation, by selecting rubber material as the material of the noise reduction block 43, the noise reduction effect and reliability of the detection mechanism 4 can be effectively improved, while ensuring the smooth progress of the detection process.

[0054] The surface of the fixed tube 41 is provided with viscoelastic damping material, and a sound insulation board adapted thereto is provided at the opening at one end of the fixed tube 41; in a specific implementation, by providing the above-mentioned structure, the use of the viscoelastic damping material and the sound insulation board helps to protect the detector 411 inside the fixed tube 41 from the influence of the external environment, and the sound insulation board can effectively block external noise from entering the interior of the fixed tube 41, further reducing the interference of background noise on the detection signal.

[0055] Reference Figure 1-Figure 10 , a diagnostic method for transformer fault diagnosis equipment, the operating steps are as follows:

[0056] Step 1: Control the crawler 21 to move between the two support columns 1 through the remote terminal, and the hydraulic rod 22 drives the hydraulic rotary cylinder 23 to continue to rise until the upper surface of the support platform 31 contacts the lower surface of the transformer 5, and then continue to adjust the crawler 21 to be in a balanced state, and the hydraulic rotary cylinder 23 drives the connecting column 24 to rotate, thereby driving the support platform 31 to rotate, and adjust the detection mechanism 4 on the upper surface of the support platform 31 and the transformer 5 to be perpendicular to each other;

[0057] Step 2, the first screw rod 32 drives the screw nut to drive the second screw rod 33 to slide on the upper surface of the support platform 31, and the brushless motor pan-tilt 49 controls the fixed tube 41 to rotate until the side of the noise reduction block 43 contacts the surface of the transformer 5, the first screw rod 32 and the second screw rod 33 and the brushless motor pan-tilt 49 stop working, the cylinder 410 drives the detection mechanism 4 to rise to the specified position of the transformer 5 and stop, the first screw rod 32 is driven again, driving the second screw rod 33 to get closer to the transformer 5, the noise reduction block 43 is squeezed, shrinks and slides into the circular slide groove of the joint 42, and squeezes the telescopic rod 45 embedded in the negative pressure hole 44 to shrink, thereby driving the negative pressure tube 46 in the telescopic rod 45 to shrink;

[0058] Step three, the negative pressure hole 44 and the detector 411 start working. The negative pressure generated by the negative pressure hole 44 makes the noise reduction block 43 tightly adsorbed on the surface of the transformer 5. The detector 411 uploads the detected data to the remote display. If the position where the detector 411 is located does not detect abnormal data of partial discharge generated in the transformer 5, the first screw rod 32, the second screw rod 33, the cylinder 410 and the brushless motor pan / tilt 49 work at the same time to move the detector 411 to the next position to be detected in the transformer 5. If the detector 411 has detected the partial discharge position inside the transformer 5, the detector 411 remains motionless on the outer surface of the transformer 5. After the abnormal data generated by the partial discharge is collected, the remote control end controls the hydraulic rod 22 to descend, and all equipment returns to its original state.

[0059] 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 transformer fault diagnosis device, comprising symmetrically arranged support columns (1), characterized in that: A lifting mechanism (2) is arranged below the two support columns (1), an adjustment mechanism (3) is arranged at the upper end of the lifting mechanism (2), a detection mechanism (4) is arranged at the upper end of the adjustment mechanism (3), a transformer (5) is fixedly connected between the two support columns (1), and one side of the detection mechanism (4) is in contact with one side of the transformer (5); The lifting mechanism (2) realizes the lifting and lowering action of the detection mechanism (4); The detection mechanism (4) comprises a fixed tube (41), one end of the fixed tube (41) is fixedly connected to a joint (42), one side of the joint (42) is provided with a circular groove, one side of the joint (42) is provided with noise reduction blocks (43) in a circumferential array, the surface of each noise reduction block (43) is slidably connected to the groove surface of the circular groove, the inner wall of the fixed tube (41) is fixedly connected to a detector (411), the tube body of the fixed tube (41) is provided with negative pressure holes (44) in a circumferential array, one end of the negative pressure hole (44) extends through the joint (42) to the outer side surface of the noise reduction block (43), and the negative pressure hole (44) where the joint (42) is located is provided with a negative pressure hole (44). A telescopic rod (45) is arranged inside the hole (44), one end of each telescopic rod (45) is located in the circular slide groove, one end of each telescopic rod (45) is fixedly connected to the side of each noise reduction block (43), a spring (47) is arranged inside each telescopic rod (45), a negative pressure tube (46) is movably sleeved inside each spring (47), two ends of each spring (47) are fixedly connected to the inner walls at two ends of each telescopic rod (45), and one end of the inner wall of each negative pressure tube (46) is fixedly connected to the hole wall of the negative pressure hole (44) where each noise reduction block (43) is located; The adjusting mechanism (3) realizes the action of adjusting the horizontal position and height of the detecting mechanism (4); The detection mechanism (4) realizes the action of detecting the transformer (5).

2. A transformer fault diagnosis device according to claim 1, characterized in that: The lifting mechanism (2) comprises a crawler vehicle (21), the upper end of the crawler vehicle (21) is fixedly connected to a hydraulic rod (22), the upper end of the hydraulic rod (22) is fixedly connected to a hydraulic rotary cylinder (23), and the rotary component of the hydraulic rotary cylinder (23) is fixedly connected to a connecting column (24).

3. A transformer fault diagnosis device according to claim 2, characterized in that: The adjustment mechanism (3) comprises a support platform (31), the lower surface of the support platform (31) is fixedly connected to the upper end of the connecting column (24), first screw rods (32) are fixedly connected to both sides of the support platform (31), one end of the threaded rods of the two first screw rods (32) extends to the outside, a second screw rod (33) is fixedly connected between the screw rod nuts of the two first screw rods (32), the threaded rod of the second screw rod (33) slides back and forth directly above the support platform (31), and one side of the support platform (31) is symmetrically arranged along the central axis. A bearing (34) is provided, and a rotating rod (35) is fixedly connected between the inner rings of the two bearings (34), and the two ends of the rotating rod (35) respectively extend to the ends of the two first screw rods (32), and the two ends of the rotating rod (35) are respectively fixedly connected to a first gear (36), and the two first gears (36) are respectively meshed with a second gear (37), and one side of the two second gears (37) is respectively fixedly connected to one end of the threaded rods of the two first screw rods (32), and the first gear (36) and the second gear (37) that are meshed with each other are perpendicular to each other.

4. A transformer fault diagnosis device according to claim 3, characterized in that: The motor of one of the first screw rods (32) and its threaded rod are perpendicular to each other, and the motor end of one of the first screw rods (32) is transmission-connected to its threaded rod using two mutually perpendicular gears.

5. A transformer fault diagnosis device according to claim 4, characterized in that: The other end of the fixed tube (41) is fixedly connected to a V-shaped rod (48), a brushless motor platform (49) is arranged below the V-shaped rod (48), a cylinder (410) is arranged below the brushless motor platform (49), a cylinder rod of the cylinder (410) is fixedly connected to the lower end of the brushless motor platform (49), and the lower end of the cylinder (410) is fixedly connected to the screw nut of the second screw rod (33).

6. A transformer fault diagnosis device according to claim 5, characterized in that: The surface of the noise reduction block (43) and the groove surface of the circular slide groove are both coated with a sealing layer.

7. A transformer fault diagnosis device according to claim 6, characterized in that: The noise reduction block (43) is made of rubber.

8. A transformer fault diagnosis device according to claim 7, characterized in that: The surface of the fixed tube (41) is provided with a viscoelastic damping material, and an opening at one end of the fixed tube (41) is provided with a sound insulation board adapted thereto.

9. The diagnostic method of a transformer fault diagnosis device according to claim 8, wherein the operating steps are as follows: Step 1: Control the crawler vehicle (21) to move between the two support columns (1) through the remote terminal, and the hydraulic rod (22) drives the hydraulic rotary cylinder (23) to continuously rise until the upper surface of the support platform (31) contacts the lower surface of the transformer (5), and then continuously adjust the crawler vehicle (21) to be in a balanced state, and the hydraulic rotary cylinder (23) drives the connecting column (24) to rotate, thereby driving the support platform (31) to rotate, and adjusting the detection mechanism (4) on the upper surface of the support platform (31) and the transformer (5) to be perpendicular to each other; Step 2: The first screw (32) drives the screw nut to drive the second screw (33) to slide on the upper surface of the support platform (31), and the brushless motor pan / tilt (49) controls the fixed tube (41) to rotate until the side of the noise reduction block (43) contacts the surface of the transformer (5). The first screw (32) and the second screw (33) and the brushless motor pan / tilt (49) stop working, and the cylinder (410) drives the detection mechanism (4) to rise to the specified position of the transformer (5) and stop. The first screw (32) is driven again to drive the second screw (33) to get closer to the transformer (5), and the noise reduction block (43) is squeezed and shrinks and slides into the circular slide groove of the joint (42), and squeezes the telescopic rod (45) embedded in the negative pressure hole (44) to shrink, thereby driving the negative pressure tube (46) in the telescopic rod (45) to shrink; Step 3: The negative pressure hole (44) and the detector (411) start working. The negative pressure generated by the negative pressure hole (44) causes the noise reduction block (43) to be tightly adsorbed on the surface of the transformer (5). The detector (411) uploads the detected data to the remote display. If the position where the detector (411) is located does not detect abnormal data of partial discharge generated in the transformer (5), the first screw rod (32), the second screw rod (33), the cylinder (410) and the brushless motor pan / tilt (49) work simultaneously to move the detector (411) to the next position to be detected in the transformer (5). If the detector (411) has detected the position of partial discharge inside the transformer (5), the detector (411) remains stationary on the outer surface of the transformer (5). After the abnormal data generated by the partial discharge is collected, the remote control end controls the hydraulic rod (22) to descend, and all equipment returns to its original state.

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