A transformer voiceprint monitoring device

Abstract

The utility model relates to transformer voiceprint monitoring technical field discloses a kind of transformer voiceprint monitoring devices, it is by support ring, two support plates and side frame is made of, transformer is installed on the two support plates of support baseplate, the top side of support ring has rotary tank, outer gear ring is rotatably installed in the rotary tank, the top side of outer gear ring is fixedly installed with mounting bracket, the mounting bracket has lifting cavity;Lifting voiceprint monitoring component is set in the lifting cavity of mounting bracket, the lifting voiceprint monitoring component is set as can be carried out voiceprint monitoring to transformer;Start second motor, make driving rod drive gear rotate, further drive outer gear ring and mounting bracket to carry out 360 degrees reciprocating rotation, so that voiceprint sensor can be around transformer 360 degrees reciprocating circumferential rotation, further improve the voiceprint monitoring range of transformer, further realize the voiceprint monitoring of transformer at multiple angles, improve the voiceprint monitoring accuracy of transformer.

Description

Technical Field

[0001] This utility model relates to the field of transformer acoustic signature monitoring technology, and in particular to a transformer acoustic signature monitoring device. Background Technology

[0002] Transformer acoustic signature monitoring device is a monitoring device that judges the health status of equipment by collecting and analyzing the sound signals (acoustic signature) generated by the transformer during operation. Based on the principle that "equipment failure will lead to abnormal acoustic signature characteristics", it realizes early warning of potential transformer faults (such as loose iron core, winding deformation, partial discharge, etc.) and is one of the important means of power equipment condition monitoring.

[0003] However, traditional transformer acoustic fingerprint monitoring devices are usually fixed in a fixed position on a certain side of the transformer during daily use. This can easily lead to a decrease in the accuracy of monitoring transformer acoustic fingerprint faults. In addition, transformers usually have four sides. If acoustic fingerprint monitoring is to be carried out on the remaining three sides of the transformer, an acoustic fingerprint monitoring device needs to be installed on each side. This can easily cause signal redundancy and interference superposition, reducing the accuracy of monitoring. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a transformer acoustic signature monitoring device to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transformer acoustic signature monitoring device includes: The support chassis consists of a support ring, two support plates, and a side frame. The transformer is mounted on the two support plates of the support chassis. The top side of the support ring has a rotating groove, in which an external toothed ring is rotatably mounted. The top side of the external toothed ring is fixedly mounted with a mounting frame, which has a lifting cavity. The lifting acoustic fingerprint monitoring component is installed in the lifting cavity of the mounting frame. The lifting acoustic fingerprint monitoring component is configured to perform acoustic fingerprint monitoring on the transformer and also has the function of adjusting the lifting height. The rotary drive assembly is located in the side frame of the supporting chassis. The rotary drive assembly can drive the external gear ring to rotate, thereby causing the lifting acoustic monitoring assembly to rotate around the transformer, thus expanding the acoustic monitoring range of the transformer.

[0006] Preferably, the lifting cavity is composed of a cylindrical cavity and two rectangular side openings.

[0007] Preferably, the lifting voiceprint monitoring component includes: The lifting block is composed of a circular plate and two rectangular side blocks. The circular plate of the lifting block is movably installed in the cylindrical cavity of the lifting chamber, and the two rectangular side blocks of the lifting block are respectively movably installed in the two rectangular side openings of the lifting chamber. The first motor is fixedly mounted on the top side of the mounting bracket and has an output shaft on it; A threaded rod, one end of which is fixedly installed on the output shaft of the first motor, and the other end of which is threaded through the outside of the lifting block and rotatably installed on the bottom inner wall of the lifting cavity; The mounting plate is fixedly installed on one side of the lifting block; The acoustic signature sensor is fixedly mounted on the top side of the mounting plate.

[0008] Preferably, the side frame of the supporting chassis is arranged in a U-shape, and the side frame has a side cavity.

[0009] Preferably, the rotary drive assembly includes: The second motor is fixedly mounted on the top side of the upper frame of the supporting chassis and has an output end. The drive rod has one end fixedly mounted on the output shaft of the second motor, and the other end extends into the side cavity of the side frame and is rotatably mounted on the inner wall of the side cavity. The gear is located in the side cavity of the side frame and is fixedly connected to the drive rod.

[0010] Preferably, the mounting frame has two cavities, and a data processor is provided on the inner wall of the corresponding cavity.

[0011] Preferably, the data processor is electrically connected to the voiceprint sensor.

[0012] In this application, by starting the first motor, the threaded rod is driven to rotate in both directions, allowing the lifting block to adjust the height of the acoustic fingerprint sensor on the mounting bracket, thus expanding the detection range of the acoustic fingerprint sensor on the transformer. At the same time, the second motor is started, causing the drive rod to drive the gear to rotate, which in turn drives the external gear ring and the mounting bracket to rotate 360 ​​degrees reciprocatingly. This allows the acoustic fingerprint sensor to rotate 360 ​​degrees around the transformer, further improving the acoustic fingerprint monitoring range of the transformer. This enables multi-angle acoustic fingerprint monitoring of the transformer and improves the accuracy of acoustic fingerprint monitoring of the transformer. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure in plan view of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A; Figure 5 This is a structural schematic diagram of the present invention from an exploded perspective.

[0014] In the diagram: 100, Support chassis; 110, Support ring; 1101, Rotary groove; 120, Support plate; 130, Side frame; 140, External gear ring; 150, Mounting frame; 1501, Lifting chamber; 1502, Frame cavity; 160, Data processor; 200, Lifting acoustic signature monitoring component; 210, Lifting block; 220, First motor; 230, Threaded rod; 240, Mounting plate; 250, Acoustic signature sensor; 300, Rotation drive component; 310, Second motor; 320, Drive rod; 330, Gear. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Traditional transformer acoustic signature monitoring devices are typically fixed in place on a single face of the transformer during routine use. This can easily lead to a decrease in the accuracy of acoustic signature fault monitoring. Furthermore, since transformers usually have four faces, to monitor the remaining three faces, an acoustic signature monitoring device needs to be installed on each face, which can easily cause signal redundancy and interference, further reducing monitoring accuracy. To solve the above problems, this embodiment discloses a transformer acoustic signature monitoring device comprising: Figure 1 The supporting chassis 100 is shown; as Figure 1 The lifting acoustic signature monitoring component 200 and the rotary drive component 300 are shown.

[0017] like Figure 1 As shown, the support chassis 100 consists of a support ring 110, two support plates 120, and a side frame 130. The transformer is mounted on the two support plates 120 of the support chassis 100. The top side of the support ring 110 has a rotating groove 1101, which is T-shaped. An external toothed ring 140 is rotatably mounted in the rotating groove 1101. The bottom side of the external toothed ring 140 has a protrusion, which is T-shaped and fits the rotating groove 1101. A mounting frame 150 is fixedly mounted on the top side of the external toothed ring 140. The mounting frame 150 has a lifting cavity 1501, which is composed of a cylindrical cavity and two rectangular side openings.

[0018] like Figure 4As shown, the lifting acoustic fingerprint monitoring component 200 is installed in the lifting cavity 1501 of the mounting bracket 150. The lifting acoustic fingerprint monitoring component 200 is configured to perform acoustic fingerprint monitoring on the transformer and also has the function of adjusting the lifting height. The lifting acoustic signature monitoring component 200 includes: a lifting block 210, a first motor 220, a threaded rod 230, a mounting plate 240, and an acoustic signature sensor 250. The lifting block 210 consists of a circular plate and two rectangular side blocks. The circular plate of the lifting block 210 is movably installed in the cylindrical cavity of the lifting chamber 1501, and the two rectangular side blocks of the lifting block 210 are respectively movably installed in the two rectangular side openings of the lifting chamber 1501. The first motor 220 is fixedly installed on the top side of the mounting bracket 150. One end of the threaded rod 230 is fixedly installed on the output shaft of the first motor 220, and the other end of the threaded rod 230 is threaded through the lifting block. The lifting block 210 is externally and rotatably installed on the bottom inner wall of the lifting chamber 1501; the mounting plate 240 is fixedly installed on one side of the lifting block 210; the acoustic sensor 250 is fixedly installed on the top side of the mounting plate 240. The acoustic sensor 250 monitors the stable "background noise" generated during the operation of the transformer. When a fault or abnormality occurs inside the transformer (such as insulation aging, loose parts, discharge, etc.), new acoustic signals will be generated, causing changes in the distribution of acoustic features (frequency, amplitude, spectrum). The acoustic sensor 250 infers the health status of the transformer by capturing this "change".

[0019] Continue as Figure 4 As shown, the side frame 130 supporting the chassis 100 is arranged in a U-shape and has a side cavity inside.

[0020] like Figure 3 As shown, the rotary drive assembly 300 is installed in the side frame 130 of the supporting chassis 100. The rotary drive assembly 300 can drive the external gear ring 140 to rotate, thereby causing the lifting acoustic monitoring assembly 200 to rotate around the transformer, thus expanding the acoustic monitoring range of the transformer. The rotary drive assembly 300 includes a second motor 310, a drive rod 320, and a gear 330. The second motor 310 is fixedly mounted on the top side of the side frame 130 on the support chassis 100. One end of the drive rod 320 is fixedly mounted on the output shaft of the second motor 310. The other end of the drive rod 320 extends into the side cavity of the side frame 130 and is rotatably mounted on the inner wall of the side cavity. The gear 330 is fixedly mounted on the drive rod 320 and is located in the side cavity of the side frame 130.

[0021] Continue as Figure 3As shown, the mounting bracket 150 has two cavities 1502, and a data processor 160 is provided on the inner wall of the corresponding cavity 1502. The data processor 160 is electrically connected to the voiceprint sensor 250. The data processor 160 performs preprocessing such as acquisition, amplification, and filtering on the raw analog sound signal collected by the voiceprint sensor, and converts it into a digital signal. The monitored data information is then displayed through an external display device.

[0022] In this application, by starting the first motor 220, the threaded rod 230 is driven to rotate in both directions, so that the lifting block 210 can drive the acoustic fingerprint sensor 250 to adjust its height on the mounting bracket 150, thereby increasing the detection range of the acoustic fingerprint sensor 250 on the transformer. At the same time, the second motor 310 is started, so that the drive rod 320 drives the gear 330 to rotate, thereby driving the external gear ring 140 and the mounting bracket 150 to rotate 360 ​​degrees reciprocatingly, so that the acoustic fingerprint sensor 250 can rotate 360 ​​degrees around the transformer, further increasing the acoustic fingerprint monitoring range of the transformer, thereby realizing multi-angle acoustic fingerprint monitoring of the transformer and improving the accuracy of acoustic fingerprint monitoring of the transformer.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A transformer acoustic signature monitoring device, characterized in that, include: The support chassis (100) consists of a support ring (110), two support plates (120) and a side frame (130). The transformer is mounted on the two support plates (120) of the support chassis (100). The top side of the support ring (110) has a rotating groove (1101). An external toothed ring (140) is rotatably installed in the rotating groove (1101). A mounting frame (150) is fixedly installed on the top side of the external toothed ring (140). The mounting frame (150) has a lifting cavity (1501). A lifting acoustic signature monitoring component (200) is installed in the lifting cavity (1501) of the mounting frame (150). The lifting acoustic signature monitoring component (200) is configured to perform acoustic signature monitoring on the transformer and also has the function of adjusting the lifting height. The rotary drive assembly (300) is located in the side frame (130) of the support chassis (100). The rotary drive assembly (300) can drive the external gear ring (140) to rotate, thereby causing the lifting acoustic monitoring assembly (200) to rotate around the transformer, thus expanding the acoustic monitoring range of the transformer.

2. The transformer acoustic signature monitoring device according to claim 1, characterized in that, The lifting cavity (1501) consists of a cylindrical cavity and two rectangular side openings.

3. The transformer acoustic signature monitoring device according to claim 2, characterized in that, The lifting voiceprint monitoring component (200) includes: The lifting block (210) is composed of a circular plate and two rectangular side blocks. The circular plate of the lifting block (210) is movably installed in the cylindrical cavity of the lifting chamber (1501), and the two rectangular side blocks of the lifting block (210) are respectively movably installed in the two rectangular side openings of the lifting chamber (1501). The first motor (220) is fixedly mounted on the top side of the mounting bracket (150) and has an output shaft thereon; The threaded rod (230) has one end fixedly installed on the output shaft of the first motor (220), and the other end threaded through the outside of the lifting block (210) and rotatably installed on the bottom inner wall of the lifting cavity (1501); Mounting plate (240), which is fixedly mounted on one side of lifting block (210); A voiceprint sensor (250) is fixedly mounted on the top side of a mounting plate (240).

4. The transformer acoustic signature monitoring device according to claim 1, characterized in that, The side frame (130) of the supporting chassis (100) is arranged in a U-shape, and the side frame (130) has a side cavity.

5. The transformer acoustic signature monitoring device according to claim 4, characterized in that, The rotary drive assembly (300) includes: The second motor (310) is fixedly mounted on the top side of the upper side frame (130) of the support chassis (100) and has an output end thereon; The drive rod (320) has one end fixedly mounted on the output shaft of the second motor (310), and the other end extends into the side cavity of the side frame (130) and is rotatably mounted on the inner wall of the side cavity; The gear (330) is located in the side cavity of the side frame (130) and is fixedly connected to the drive rod (320).

6. The transformer acoustic signature monitoring device according to claim 1, characterized in that, The mounting bracket (150) has two cavities (1502), and a data processor (160) is provided on the inner wall of the corresponding cavity (1502).

7. The transformer acoustic signature monitoring device according to claim 6, characterized in that, The data processor (160) is electrically connected to the acoustic sensor (250).

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