A transformer fault automatic alarm device and a method for using the same

Abstract

The application discloses a transformer fault automatic alarm device and a use method thereof, and relates to the technical field of power equipment. The transformer fault automatic alarm device comprises a device base arranged at the bottom of a transformer body, an annular guide rail frame is arranged on the device base, a rotating ring is rotatably connected to the annular guide rail frame, a limiting seat is fixedly connected to the rotating ring, and a fault identification terminal is movably clamped on the limiting seat. The transformer fault automatic alarm device utilizes the design of the fault identification terminal and a microphone module, receives and processes the working sound signals of the transformer body, adopts an alarm component to automatically alarm when the sound signals are abnormal, and through the design of a driving unit, the device can perform omnibearing sound identification and detection on the transformer body, the detection sensitivity and accuracy are improved, meanwhile, the design of a noise reduction unit is matched, the rotating ring is automatically lubricated when moving along the annular guide rail frame, and the transmission position noise is prevented from affecting the fault sound detection effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a transformer fault automatic alarm device and a use method thereof. BACKGROUND

[0002] The transformer will produce certain noise in normal operation, and when internal failure occurs, the noise signal will change. For example, winding deformation, looseness or core looseness and other faults will cause changes in transformer vibration characteristics, and thus abnormal noise signals are generated. Therefore, the prior art can detect the running sound of the transformer to determine whether the transformer is abnormal, and can automatically alarm when detecting transformer abnormalities, thereby facilitating the maintenance and stable operation of the transformer.

[0003] The existing transformer fault automatic alarm device is mainly installed on one side or multiple sides of the transformer. Since the noise around the transformer in the running process is different in each direction, the accuracy of the recognition alarm device at different positions is also different. The device near the fault position has better sensitivity and is more likely to identify fault sound signals. However, the prior art is not convenient for multi-directional detection of the transformer, so that the transformer fault automatic alarm device has a missed alarm problem, or does not alarm when the transformer has a slight fault. When the fault is enlarged and the noise is increased again, the fault signal is recognized. This makes the device have low sensitivity, increases the degree of transformer failure, and increases the difficulty of maintaining the transformer. In view of the deficiencies of the prior art, the present application provides a transformer fault automatic alarm device and a use method thereof to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a transformer fault automatic alarm device and a use method thereof. The design of the fault recognition terminal and the microphone module receives and processes the working sound signals of the transformer body. When the sound signal is abnormal, the alarm assembly is used for automatic alarm. Through the design of the driving unit, the device performs omnidirectional sound recognition and detection on the transformer body, improves the detection sensitivity and accuracy, and at the same time, cooperates with the design of the noise reduction unit to automatically lubricate the rotating ring when moving along the ring-shaped guide rail frame, avoiding the influence of transmission position noise on the fault sound detection effect.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a transformer fault automatic alarm device, comprising a device base arranged at the bottom of a transformer body, wherein the device base is provided with a ring-shaped guide rail frame, a rotating ring is rotatably connected to the ring-shaped guide rail frame, a limiting seat is fixedly connected to the rotating ring, and a fault recognition terminal is movably clamped to the limiting seat.

[0006] The device base is provided with a driving unit for driving the rotating ring to rotate;

[0007] The side of the ring-shaped guide rail frame is provided with a noise reduction unit, the noise reduction unit comprises a bearing platform arranged on the side of the ring-shaped guide rail frame and a storage box arranged on the bearing platform, a lubricating nozzle is arranged on the storage box, and the lubricating nozzle is used for lubricating the ring-shaped guide rail frame and the transmission position of the rotating ring.

[0008] The fault identification terminal is provided with a microphone module and an alarm component.

[0009] Preferably, the driving unit comprises a bearing frame fixedly connected to the device base and a worm gear groove opened in the rotating ring, the motor body is fixedly connected to the bearing frame, the output end of the motor body is provided with a worm, and the worm is engaged with the worm gear groove.

[0010] Preferably, the bearing frame is provided with a support plate, the support plate is provided with a wireless charging base, and the bottom of the fault identification terminal is provided with a wireless charging module.

[0011] Preferably, the alarm component comprises a warning horn and a communication alarm module.

[0012] Preferably, the ring-shaped guide rail frame is provided with a limiting groove, the rotating ring is provided with a ball, the ball is movably connected in the limiting groove, the lubricating nozzle is rotatably connected with a rotating wheel, and the rotating wheel is used for contacting and delivering lubricating oil to the ball.

[0013] Preferably, a buffer mechanism is arranged between the bearing platform and the storage box, the buffer mechanism comprises a sliding table fixedly connected to the bottom of the storage box, the sliding table is slidably connected to the bearing platform, the bottom of the bearing platform is fixedly connected with a baffle, and the baffle and the sliding table are fixedly connected with a first spring.

[0014] Preferably, the bottom of the bearing platform is further fixedly connected with a limiting plate, the limiting plate is fixedly connected with a limiting rod, the sliding table is slidably connected to the limiting rod, the first spring is sleeved on the limiting rod, and the storage box is provided with a rotating cover.

[0015] Preferably, the limiting seat is provided with a locking assembly for limiting the fault identification terminal, the locking assembly comprises a rotating rod rotatably connected to the limiting seat, the rotating rod is provided with a clamping joint, the rotating rod and the limiting seat are fixedly connected with a second spring, the fault identification terminal is provided with a clamping groove, and the clamping joint is movably clamped in the clamping groove.

[0016] Preferably, the limiting seat is provided with a sound amplification cover.

[0017] The second aspect of the present application provides a use method of the transformer fault automatic alarm device, and the use method comprises the following steps: step S1, the fault recognition terminal records the transformer main body operation sound through the microphone module at the initial position, and the fault detection is performed through the sound recognition of the fault recognition terminal; when there is no abnormal sound, it is judged that the transformer main body is normal;

[0018] Step S2, periodically adjust the position of the fault recognition terminal to detect the fault sound recognition of the transformer main body in different directions; when adjusting the position of the fault recognition terminal, the driving unit drives the rotating ring to rotate, and the rotating ring drives the limiting seat and the fault recognition terminal to adjust the target detection position;

[0019] Step S3, after the detection of each direction of the transformer main body is completed, if there is no abnormal fault sound, it is judged that the transformer main body is normal; if the sound is abnormal, it is judged that the transformer main body is abnormal, and the alarm component is used for alarm to prompt the personnel to repair.

[0020] The present application discloses a transformer fault automatic alarm device and a use method thereof, which has the following beneficial effects:

[0021] 1. The transformer fault automatic alarm device provides support for the rotating ring through the annular guide rail frame, installs and limits the limiting seat and the fault recognition terminal through the rotating ring, receives and processes the working sound signal of the transformer main body through the design of the fault recognition terminal and the microphone module, and automatically alarms through the alarm component when the sound signal is abnormal. Through the design of the driving unit, the rotating ring can rotate along the annular guide rail frame, thereby driving the limiting seat and the fault recognition terminal to adjust the position and perform omnidirectional sound recognition and detection on the transformer main body, avoiding the poor detection effect caused by the fault sound in the blind area, improving the detection sensitivity and accuracy, and at the same time, cooperating with the design of the noise reduction unit, the rotating ring is automatically lubricated when moving along the annular guide rail frame, avoiding the influence of the transmission position noise on the fault recognition terminal and the microphone module to the fault sound detection effect of the transformer main body.

[0022] 2. The transformer fault automatic alarm device limits the rotating ring through the limiting groove, and the rotating resistance is reduced through the ball arranged on the rotating ring, thereby improving the rotating smoothness of the rotating ring. In addition, the design of the noise reduction unit provides lubrication for the transmission position of the rotating ring and the annular guide rail frame. At the same time, the rotating wheel is used to lubricate the ball, thereby reducing the resistance of the ball and improving the stability of the system. When the rotating ring rotates on the annular guide rail frame, the rotating ring drives the ball to move. When the ball contacts the rotating wheel, the rotating wheel rotates and the lubricating oil attached to the rotating wheel is transferred. The ball also attaches the lubricating oil to the contact position between the annular guide rail frame and the rotating ring, so that the rotating ring rotates without abnormal noise, low wear and long service life.

[0023] 3. The transformer fault automatic alarm device, through the design of the buffer mechanism, the ball will not have hard collision when contacting and extruding the rotating wheel, and the contact position is buffered, so as to further improve the system stability. When the ball contacts the rotating wheel and generates thrust, the rotating wheel is stressed, the lubricating nozzle and the storage tank are transversely moved by the rotating wheel, the storage tank moves and extrudes the first spring, buffer displacement is realized, impact is reduced, and system stability is improved.

[0024] 4. The transformer fault automatic alarm device, through the design of the wireless charging base and the wireless charging module, the fault recognition terminal can be wirelessly charged when it is in the initial position state each time, the power supply inside the fault recognition terminal is charged, so that the fault recognition terminal realizes wireless installation, and when the subsequent fault recognition terminal fails, maintenance is convenient. Through the design of the locking assembly, the fault recognition terminal is convenient to install and dock on the limiting seat, and when the subsequent fault recognition terminal needs to be maintained, the fault recognition terminal can be quickly unlocked and taken off from the limiting seat, so that the device is easy to maintain and replace. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a first view of the overall structure of the present application.

[0027] Figure 2 It is a second view of the overall structure of the present application.

[0028] Figure 3 It is a structure diagram of the wireless charging base of the present application.

[0029] Figure 4 It is a disassembly diagram of the limiting seat of the present application.

[0030] Figure 5 It is a structure diagram of the locking assembly of the present application.

[0031] Figure 6 It is a disassembly diagram of the fault recognition terminal of the present application.

[0032] Figure 7 It is a disassembly diagram of the rotating ring of the present application.

[0033] Figure 8 It is a structure diagram of the ring guide rail frame of the present application.

[0034] Figure 9 The structural schematic diagram of the noise reduction unit of the present application;

[0035] Figure 10 The exploded schematic diagram of the storage box of the present application.

[0036] In the figure: 1, device base; 11, transformer main body; 2, annular guide rail frame; 21, limiting groove; 3, rotating ring; 31, ball; 4, limiting seat; 41, sound amplification cover; 5, fault identification terminal; 51, microphone module; 52, alarm component; 521, warning horn; 522, communication alarm module; 53, wireless charging module; 54, clamping groove; 6, driving unit; 61, worm gear slot; 62, bearing frame; 621, support plate; 622, wireless charging base; 63, motor main body; 64, worm; 7, noise reduction unit; 71, bearing platform; 72, storage box; 721, rotating cap; 73, lubrication nozzle; 74, rotating wheel; 8, buffer mechanism; 81, sliding table; 82, baffle; 83, first spring; 84, limiting plate; 85, limiting rod; 9, locking component; 91, rotating rod; 92, clamping joint; 93, second spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0038] The embodiments of the present application provide a transformer fault automatic alarm device and a use method thereof, and solve the problem that the existing transformer fault automatic alarm device is mainly installed on one side or multiple sides of the transformer. Since the noise around the transformer in each direction is different during operation, the accuracy of the identification alarm device at different positions is also different. The device near the fault position has better sensitivity and is more likely to identify the fault sound signal. However, the existing technology is not convenient for multi-directional detection of the transformer, so that the transformer fault automatic alarm device has the problem of missing report. Or when the transformer has a slight fault, no alarm is given. When the fault is expanded and the noise is increased again, the fault signal is identified. This makes the device have low sensitivity, increases the fault degree of the transformer, and increases the difficulty of maintaining the transformer.

[0039] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0040] The embodiments of the present application disclose a transformer fault automatic alarm device, according to the attachedFigure 1 To the attached Figure 10 As shown, including the transformer body 11 bottom of the device base 1, the device base 1 is provided with a ring rail frame 2, the ring rail frame 2 is rotatably connected with the rotating ring 3, the rotating ring 3 is fixedly connected with the limiting seat 4, the limiting seat 4 is movably connected with the fault identification terminal 5;

[0041] The device base 1 is provided with a driving unit 6 for driving the rotating ring 3 to rotate;

[0042] The side of the ring rail frame 2 is provided with a noise reduction unit 7, the noise reduction unit 7 includes a bearing platform 71 arranged on the side of the ring rail frame 2 and a storage box 72 arranged on the bearing platform 71, the storage box 72 is provided with a lubricating nozzle 73, the lubricating nozzle 73 is used for lubricating the transmission position of the ring rail frame 2 and the rotating ring 3;

[0043] The fault identification terminal 5 is provided with a microphone module 51 and an alarm component 52.

[0044] The transformer fault automatic alarm device, through the ring rail frame 2 to provide support for the rotating ring 3, using the rotating ring 3 to provide installation limit for the limiting seat 4 and the fault identification terminal 5, using the design of the fault identification terminal 5 and the microphone module 51, receiving and processing the working sound signal of the transformer body 11, when the sound signal is abnormal, using the alarm component 52 to automatically alarm, through the design of the driving unit 6, the rotating ring 3 can rotate along the ring rail frame 2, and then drive the limiting seat 4 and the fault identification terminal 5 to adjust the position, and the transformer body 11 is identified and detected in all directions, avoiding the phenomenon that the detection effect is poor caused by the fault sound in the blind area, improving the detection sensitivity and accuracy, at the same time, cooperating with the design of the noise reduction unit 7, the rotating ring 3 is automatically lubricated when moving along the ring rail frame 2, avoiding the influence of transmission position noise on the fault sound detection effect of the fault identification terminal 5 and the microphone module 51 on the transformer body 11.

[0045] The driving unit 6 includes a bearing frame 62 fixedly connected to the device base 1 and a worm gear slot 61 opened in the rotating ring 3, the bearing frame 62 is fixedly connected with a motor body 63, the output end of the motor body 63 is provided with a worm 64, the worm 64 is engaged with the worm gear slot 61;

[0046] The driving unit 6 arranged in the device has compact structure and convenient control, when it is needed to control the rotating ring 3 to rotate and adjust the position of the limiting seat 4 and the fault identification terminal 5, the motor body 63 is driven, when the motor body 63 works, the worm 64 rotates, the worm 64 drives the worm gear slot 61 and the rotating ring 3 to rotate, the rotating ring 3 drives the limiting seat 4 and the fault identification terminal 5 to move, so that the azimuth adjustment of the fault identification terminal 5 is convenient and flexible.

[0047] The support plate 621 is provided with a wireless charging base 622, and the fault identification terminal 5 is provided with a wireless charging module 53. The wireless charging base 622 and the wireless charging module 53 enable the fault identification terminal 5 to be wirelessly charged when the fault identification terminal 5 is in the initial position, so that the power supply inside the fault identification terminal 5 is charged, and the fault identification terminal 5 is wirelessly installed. When the fault identification terminal 5 fails, maintenance is convenient.

[0048] The alarm component 52 includes a warning horn 521 and a communication alarm module 522. The alarm component 52 realizes diversified alarm modes through the warning horn 521 and the communication alarm module 522. The warning horn 521 warns the scene, and the communication alarm module 522 remotely alarms by sending information, so that the staff can remotely receive the fault alarm information of the transformer main body 11.

[0049] The annular guide rail frame 2 is provided with a limiting groove 21, the rotating ring 3 is provided with a ball 31, the ball 31 is movably connected in the limiting groove 21, the lubricating nozzle 73 is rotatably connected with a rotating wheel 74, the rotating wheel 74 is used for contacting and transferring lubricating oil to the ball 31, the limiting groove 21 limits the rotating ring 3, the ball 31 arranged on the rotating ring 3 reduces the rotating resistance and improves the rotating smoothness of the rotating ring 3. In combination with the design of the noise reduction unit 7, the transmission position of the rotating ring 3 and the annular guide rail frame 2 is lubricated. At the same time, the ball 31 is lubricated by the rotating wheel 74, the resistance of the ball 31 is reduced, and the system operation stability is improved. When the rotating ring 3 rotates on the annular guide rail frame 2, the rotating ring 3 drives the ball 31 to move. When the ball 31 contacts the rotating wheel 74, the rotating wheel 74 is driven to rotate and the lubricating oil attached to the rotating wheel 74 is transferred. The ball 31 also attaches the lubricating oil to the contact position between the annular guide rail frame 2 and the rotating ring 3, so that the rotating ring 3 rotates without abnormal sound, low wear and long service life.

[0050] The bearing platform 71 and the storage box 72 are provided with a buffer mechanism 8. The buffer mechanism 8 includes a sliding table 81 fixedly connected to the bottom of the storage box 72, the sliding table 81 is slidably connected to the bearing platform 71, the bearing platform 71 is fixedly connected with a baffle 82 at the bottom, and the baffle 82 and the sliding table 81 are fixedly connected with a first spring 83. The buffer mechanism 8 can prevent the ball 31 from being hard collided when the ball 31 contacts and is pressed by the rotating wheel 74, and can provide a buffer at the contact position, so as to further improve the system stability. When the ball 31 contacts the rotating wheel 74 and generates a thrust, the rotating wheel 74 is stressed, the lubricating nozzle 73 and the storage box 72 are transversely moved, the storage box 72 drives the sliding table 81 to move and press the first spring 83, so as to realize buffer displacement, reduce impact and improve system stability.

[0051] The bottom of the bearing platform 71 is also fixedly connected with a limiting plate 84, the limiting plate 84 is fixedly connected with a limiting rod 85, the sliding table 81 is slidingly connected to the limiting rod 85, the first spring 83 is sleeved on the limiting rod 85, and the storage box 72 is provided with a screw cap 721, the device provides limiting for the sliding table 81 through the limiting plate 84, provides lateral support for the sliding table 81 and the first spring 83 through the limiting rod 85, and the screw cap 721 is designed, so that the inside of the storage box 72 is convenient for adding lubricating oil.

[0052] The limiting seat 4 is provided with a locking assembly 9 for limiting the fault identification terminal 5, the locking assembly 9 comprises a rotating rod 91 rotatably connected to the limiting seat 4, the rotating rod 91 is provided with a clamping joint 92, the second spring 93 is fixedly connected between the rotating rod 91 and the limiting seat 4, the fault identification terminal 5 is provided with a clamping groove 54, and the clamping joint 92 is movably clamped in the clamping groove 54, the device is designed through the locking assembly 9, so that the fault identification terminal 5 is conveniently installed and connected on the limiting seat 4, and when subsequent maintenance of the fault identification terminal 5 is required, the fault identification terminal 5 can also be quickly unlocked and removed from the limiting seat 4, so that the device is easy to maintain and replace;

[0053] When the fault identification terminal 5 is installed, first, the rotating rod 91 is pressed, so that the rotating rod 91 rotates and extrudes the second spring 93 and drives the clamping joint 92 to be lifted, at this time, the fault identification terminal 5 is clamped in the inside of the limiting seat 4, after complete clamping, the rotating rod 91 is released, the second spring 93 is reset and pushes the rotating rod 91 to rotate, the rotating rod 91 drives the clamping joint 92 to be clamped in the clamping groove 54, so that the position of the fault identification terminal 5 is fixed.

[0054] The limiting seat 4 is provided with a sound amplifier 41, the device is designed through the sound amplifier 41, so that the sound received by the microphone module 51 is larger, and the stability of fault alarm is improved.

[0055] The second aspect of the present application provides a use method of the transformer fault automatic alarm device, and the use method comprises the following steps: step S1, the fault identification terminal 5 records the running sound of the transformer main body 11 in the initial position through the microphone module 51, fault detection is performed through sound recognition of the fault identification terminal 5, and when there is no abnormal sound, it is judged that the transformer main body 11 is running normally.

[0056] Step S2, periodically adjust the position of the fault identification terminal 5 to detect, so as to realize fault sound recognition in different directions of the transformer main body 11, when the position of the fault identification terminal 5 is adjusted, the rotating ring 3 is driven to rotate through the driving unit 6, and the limiting seat 4 and the fault identification terminal 5 are adjusted to the target detection position through the rotating ring 3;

[0057] Step S3, after detecting each orientation of the transformer body 11, if there is no abnormal fault sound, it is judged that the transformer body 11 is normal, if the sound is abnormal, it is judged that the transformer body 11 is abnormal, and the alarm component 52 is used to alarm and prompt personnel to repair.

[0058] It should be noted that, in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0059] The basic principles and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A transformer fault automatic alarm device comprising a device base (1) provided at the bottom of a transformer main body (11), characterized in that, The device base (1) is provided with an annular guide rail frame (2), the annular guide rail frame (2) is rotatably connected with a rotating ring (3), the rotating ring (3) is fixedly connected with a limiting seat (4), and the limiting seat (4) is movably connected with a fault identification terminal (5); The device base (1) is provided with a driving unit (6) for driving the rotating ring (3) to rotate; The side surface of the annular guide rail frame (2) is provided with a noise reduction unit (7), the noise reduction unit (7) comprises a bearing platform (71) arranged on the side surface of the annular guide rail frame (2) and a storage box (72) arranged on the bearing platform (71), the storage box (72) is provided with a lubricating nozzle (73), and the lubricating nozzle (73) is used for lubricating the transmission position of the annular guide rail frame (2) and the rotating ring (3); The fault identification terminal (5) is provided with a microphone module (51) and an alarm component (52), The annular guide rail frame (2) is provided with a limiting groove (21), the rotating ring (3) is provided with a ball (31), the ball (31) is movably connected in the limiting groove (21), the lubricating nozzle (73) is rotatably connected with a rotating wheel (74), and the rotating wheel (74) is used for contacting and delivering lubricating oil to the ball (31), The bearing platform (71) and the storage box (72) are provided with a buffer mechanism (8), the buffer mechanism (8) comprises a sliding table (81) fixedly connected to the bottom of the storage box (72), the sliding table (81) is slidably connected to the bearing platform (71), the bottom of the bearing platform (71) is fixedly connected with a baffle (82), and the baffle (82) and the sliding table (81) are fixedly connected with a first spring (83).

2. The automatic alarm device for transformer fault according to claim 1, characterized in that, The driving unit (6) comprises a bearing frame (62) fixedly connected to the device base (1) and a worm gear groove (61) opened in the rotating ring (3), the bearing frame (62) is fixedly connected with a motor body (63), the output end of the motor body (63) is provided with a worm (64), and the worm (64) is engaged with the worm gear groove (61).

3. The automatic alarm device for transformer fault according to claim 2, characterized in that, The bearing frame (62) is provided with a supporting plate (621), the supporting plate (621) is provided with a wireless charging base (622), and the bottom of the fault identification terminal (5) is provided with a wireless charging module (53).

4. The automatic alarm device for transformer fault according to claim 1, characterized in that, The alarm component (52) comprises a warning horn (521) and a communication alarm module (522).

5. The automatic alarm device for transformer fault according to claim 1, characterized in that, The bottom of the bearing platform (71) is also fixedly connected with a limiting plate (84), the limiting plate (84) is fixedly connected with a limiting rod (85), the sliding table (81) is slidably connected to the limiting rod (85), the first spring (83) is sleeved on the limiting rod (85), and the storage box (72) is provided with a screw cap (721).

6. The automatic alarm device for transformer fault according to claim 1, characterized in that, The limiting seat (4) is provided with a locking assembly (9) for limiting the fault identification terminal (5), the locking assembly (9) comprises a rotating rod (91) rotatably connected to the limiting seat (4), the rotating rod (91) is provided with a clamping joint (92), the rotating rod (91) and the limiting seat (4) are fixedly connected with a second spring (93), the fault identification terminal (5) is provided with a clamping groove (54), and the clamping joint (92) is movably clamped in the clamping groove (54).

7. The automatic alarm device for transformer fault according to claim 6, characterized in that, The limiting seat (4) is provided with a sound amplification cover (41).

8. A method of using the transformer fault automatic alarm device according to any one of claims 1-7, characterized in that, The use method comprises the following steps: step S1, the fault identification terminal (5) records the running sound of the transformer body (11) through the microphone module (51) at the initial position, and the fault detection is performed through the sound recognition of the fault identification terminal (5); when there is no abnormal sound, it is judged that the transformer body (11) is normal; Step S2, periodically adjust the position of the fault identification terminal (5) to detect, realize the fault sound recognition of the transformer body (11) in different directions, adjust the position of the fault identification terminal (5), drive the rotating ring (3) to rotate through the driving unit (6), and adjust the target detection position by driving the rotating ring (3) to drive the limiting seat (4) and the fault identification terminal (5); Step S3, after the detection of each direction of the transformer body (11) is completed, if there is no abnormal fault sound, it is judged that the transformer body (11) is normal, if the detected sound is abnormal, it is judged that the transformer body (11) is abnormal, and the alarm assembly (52) is used for alarm, prompting personnel to overhaul.

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