A kind of electric power equipment fault detection device and method

Abstract

The present invention discloses a fault detection device and method for electric power equipment, including a tripod, a screw diameter adjustment assembly is installed at the end angle position of the outer wall of one side of the tripod, and a straight-mouth pressure arm is hinged on the outer wall of the tripod on one side of the screw diameter adjustment assembly, and a double-wheeled electric walking module for moving the tripod forward along the extension direction of the cable is installed on the outer wall of one side of the straight-mouth pressure arm, and the screw diameter adjustment assembly allows the straight-mouth pressure arm and the double-wheeled electric walking module to approach or move away from the cable. The present invention enables the double-wheeled electric walking module to be effectively pressed on the cable to be detected, and introduces a bevel gear pushing mechanism that works together with the screw diameter adjustment assembly, so that the device can effectively prevent foreign matter from entering the current transformer during the cable detection process, ensure the cleanliness of the cable detection area, and enable the current transformer and the partial discharge detector to accurately capture the real state of the cable, thereby improving the detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of power cable detection, and in particular to a device and method for detecting faults of power equipment. Background Art

[0002] The cable fault detection device is a device specially used to identify and locate cable faults. It is widely used in power systems, communication networks and other places that require reliable cable connections. With the increase in power demand and the complexity of cable networks, the detection of cable faults has become increasingly important. This type of device drives the current transformer and partial discharge detector along the direction of the cable extension through a walking device. When the walking device drives the current transformer and partial discharge detector to move along the cable, the current transformer monitors the current changes in the cable in real time. If there is a fault in the cable, the current transformer will detect abnormal current signals, which will be transmitted to the data processing unit for analysis. At the same time, the partial discharge detector is responsible for monitoring the status of the cable insulation material. When partial discharge occurs, it will generate high-frequency electromagnetic waves, and the partial discharge detector can capture these signals and analyze them. By comparing the signal under normal operating conditions with the signal under fault conditions, the device can determine the health status of the cable; for example, an electric power equipment fault detection device disclosed in the authorization announcement number CN117471258B includes a base, a support base, a support ring, a fixed base, a fixed ring, a detection ring, a partial discharge detector, a rotating mechanism, a clamping mechanism and a moving mechanism, wherein the support base is provided in two and is respectively fixed on the base, the support ring is provided on the support base, the fixed base is fixed on the base, the fixed base is located between the support bases, the fixed ring is fixed on the fixed base, the detection ring is rotatably provided on the fixed ring, and the partial discharge detector is provided through the detection ring, which passes through the cable The movement of the partial discharge detector cooperates with the movement around the cable to facilitate a comprehensive scan of the cable. However, when this technical solution is used outdoors to detect long-line and long-distance cables along the line, the staff cannot view the actual situation of the device in real time. If there is a foreign object hanging on the cable, the foreign object will be dragged forward by the device and there is even a risk of being blocked inside the current transformer, so that there is always a layer of foreign matter between the cable and the current transformer. The main function of the current transformer is to detect current changes in the cable. The presence of foreign matter will cause the current signal to be distorted or attenuated, that is, a distorted signal will mislead the staff, leading to wrong judgments and decisions, thereby affecting the accuracy of the detection results. Summary of the invention

[0003] The object of the present invention is to provide a fault detection device and method for electric power equipment, which utilizes a gear drive unit and a planetary gear co-rotating structure to drive three screw diameter adjustment assemblies to move together, so that a two-wheeled electric walking module is pressed on a cable to be detected. During this process, part of the rotational power of the screw diameter adjustment assembly will also be transmitted to the bevel gear pushing mechanism, so that the bevel gear pushing mechanism is in close contact with the cable. When the two-wheeled electric walking module drives a wide-band current transformer and a partial discharge detector to move along the cable, the bevel gear pushing mechanism will first push foreign objects to move in front of the device to prevent foreign objects from entering the current transformer, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a power equipment fault detection device, comprising:

[0005] A tripod, wherein a screw diameter adjustment assembly is installed at an end corner position of an outer wall of one side of the tripod, and a straight-mouth pressure arm is hinged on an outer wall of the tripod on one side of the screw diameter adjustment assembly, and a double-wheel electric walking module for moving the tripod forward along the extension direction of the cable is installed on an outer wall of one side of the straight-mouth pressure arm, and the screw diameter adjustment assembly allows the straight-mouth pressure arm and the double-wheel electric walking module to approach or move away from the cable;

[0006] A gear drive unit, wherein the gear drive unit is arranged on an outer wall of one side of the tripod, a planetary gear co-rotation structure for driving three screw diameter adjustment assemblies to act synchronously is installed at the output end of the gear drive unit, a partial discharge detector is installed on the outer wall of the tripod on one side of the gear drive unit, a wide-band current transformer is installed on the outer wall of the other side of the tripod, a motor remote controller electrically connected to a two-wheeled electric travel module and an input end of the gear drive unit is installed on the outer wall of one side of the tripod, a storage battery is installed on the outer wall of the other side of the tripod, and the output end of the storage battery is electrically connected to the input ends of the motor remote controller, the two-wheeled electric travel module, the gear drive unit, the partial discharge detector, and the wide-band current transformer;

[0007] The bevel gear pusher mechanism is arranged at the end angle position on the outer wall on the other side of the tripod, and the bevel gear pusher mechanism and the screw rod diameter adjustment assembly maintain power connection.

[0008] Preferably, the screw diameter adjustment assembly includes two steel columns fixed at the end angles of the outer wall on one side of the tripod, a front triangular block seat fixed at the top of the two steel columns, a screw pushing structure installed between the front triangular block seat and the tripod, and a slide plate installed at the moving end of the screw pushing structure, the slide plate and the front triangular block seat are slidably matched, a double-layer connecting rod is hinged on the outer wall of one side of the slide plate, and the bottom end of the double-layer connecting rod is hinged to the outer wall of one side of the straight-mouth pressure arm.

[0009] Preferably, the screw pushing structure includes a screw body rotatably installed between the front triangular block seat and the tripod, and a nut pair installed on one end of the surface of the screw body. The nut pair is fixedly connected to the slide plate, and one end of the screw body is interconnected with the input end of the bevel gear pushing mechanism.

[0010] Preferably, the planetary gear co-rotation structure includes a driving gear ring rotatably mounted on the outer wall of the other side of the tripod and a planetary gear monomer fixed on the same end of each screw body, and the driving gear ring and the three planetary gear monomers are meshed with each other.

[0011] Preferably, the gear driving unit comprises a stepper motor mounted on an outer wall of one side of the tripod and a main gear plate mounted on an output end of the stepper motor, and the main gear plate and the active gear ring are meshed with each other.

[0012] Preferably, the dual-wheel electric walking module includes a C-mouth motor seat fixed to one end of the straight-mouth pressure arm surface, a first servo motor installed at the bottom of the C-mouth motor seat, and a main shaft rotatably installed at one end inside the straight-mouth pressure arm, two rubber wheels are installed at one end of the main shaft surface, and a bevel gear transmission structure for maintaining power transmission is installed at the output end of the first servo motor and one end of the main shaft.

[0013] Preferably, an annular cutting groove for rotation of the active gear ring is provided on the outer wall of the tripod on one side away from the two-wheel electric travel module, and the straight-mouth pressure arm is made of aluminum alloy.

[0014] Preferably, the bevel gear pushing mechanism includes an L-shaped buckle platform fixed on the outer wall of one side of the tripod, a right-angle seat installed on the top of the L-shaped buckle platform, a vertical shaft rotatably installed at the bottom of the right-angle seat, and a horizontal shaft rotatably installed on the outer wall of one side of the right-angle seat, a spiral bevel gear commutator for connecting the vertical shaft and the horizontal shaft is installed at the bottom of the right-angle seat, a right-angle rubber arm is fixed to the end of the horizontal shaft away from the right-angle seat, and a trapezoidal groove is provided on the outer wall of the right-angle rubber arm on the side close to the horizontal central axis of the tripod.

[0015] Preferably, one end of the vertical shaft is fixedly connected to one end of the screw rod body.

[0016] The present invention also provides a method for detecting a fault in an electric power device, such as the above-mentioned device for detecting a fault in an electric power device, comprising the following steps:

[0017] S101: The operator sets the initial state of the screw diameter adjustment assembly according to the on-site conditions to ensure that the detection dual-wheel electric travel module can be properly pressed on the cable. At this time, the staff sends a working signal to the gear drive unit through the motor remote controller, and the rotational power of the gear drive unit is synchronously transmitted to the three screw diameter adjustment assemblies through the planetary gear co-rotation structure, so that the dual-wheel electric travel module is debugged and pressed according to the cable diameter, ensuring that the device can be stably suspended on the cable;

[0018] S102: A portion of the rotational power of the screw diameter adjustment assembly is synchronously transmitted to the bevel gear pusher mechanism, and the bevel gear pusher mechanism also moves synchronously, that is, the bevel gear pusher mechanism is pressed on the cable and is located at the front end of the wide-band current transformer in the forward direction;

[0019] S103: After the device is debugged, the staff sends a walking work signal to the motor remote controller at the control end, and the motor remote controller controls the two-wheel electric walking module to work according to the set direction, speed, angle, and response time, that is, the three two-wheel electric walking modules drive the tripod, wide-band current transformer, partial discharge detector, bevel gear pusher mechanism and other components to move;

[0020] S104: The partial discharge detector monitors the current signal in the cable in real time, and the wide-band current transformer detects the partial discharge of the cable insulation layer. The wide-band current transformer and partial discharge detector transmit the collected electrical signals to the operator's monitoring interface. The operator can view the operating status of the cable in real time and analyze whether the cable has faults or hidden dangers.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the power equipment fault detection device and method utilize a gear drive unit and a planetary gear co-rotating structure to drive three screw diameter adjustment assemblies, so that the two-wheel electric walking module can be effectively pressed on the cable to be detected, and a bevel gear pushing mechanism that works together with the screw diameter adjustment assembly is introduced, so that the device can effectively prevent foreign matter from entering the current transformer during the cable detection process, ensure the cleanliness of the cable detection area, and enable the current transformer and the partial discharge detector to accurately capture the true state of the cable, thereby improving the detection accuracy. At the same time, the design of the bevel gear pushing mechanism also makes the entire detection device more stable during movement, and by pushing away foreign matter, the device jitter or instability caused by the interference of foreign matter during the detection process is avoided, and the failure rate caused by improper operation or external factors is reduced. During this process, the operator does not need to frequently perform manual cleaning, and can focus more on data collection and analysis, thereby improving overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0026] Figure 5 The three-dimensional structure of the two-wheel electric walking module of the second embodiment of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 6 The three-dimensional structure of the two-wheel electric walking module of the second embodiment of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 7 The three-dimensional structure diagram of the bevel gear pusher mechanism of the third embodiment of the present invention Figure 1 ;

[0029] Figure 8 The three-dimensional structure diagram of the bevel gear pusher mechanism of the third embodiment of the present invention Figure 2 .

[0030] In the figure: 1, tripod; 2, straight-mouth pressure arm; 3, double-wheel electric travel module; 301, C-mouth motor seat; 302, main shaft; 303, rubber wheel; 304, bevel gear transmission structure 1; 305, first servo motor; 4, screw diameter adjustment assembly; 401, steel column; 402, front triangular block seat; 403, screw push structure; 404, slide plate; 405, double-layer connecting rod; 5, gear drive unit; 6, planetary gear Wheel co-rotation structure; 601, active gear ring; 602, planetary gear monomer; 7, wide-band current transformer; 8, partial discharge detector; 9, motor remote controller; 10, bevel gear pushing mechanism; 1001, right-angle seat; 1002, L-shaped buckle table; 1003, vertical shaft; 1004, spiral bevel gear commutator; 1005, horizontal shaft; 1006, right-angle rubber arm; 1007, trapezoidal groove; 11, battery. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figures 1 to 4The present invention comprises a tripod 1, a screw diameter adjustment assembly 4 is installed at the end corner position of the outer wall of one side of the tripod 1, and a straight-mouth pressure arm 2 is hinged on the outer wall of the tripod 1 on one side of the screw diameter adjustment assembly 4, and a double-wheeled electric walking module 3 for moving the tripod 1 forward along the extension direction of the cable is installed on the outer wall of one side of the straight-mouth pressure arm 2, and the screw diameter adjustment assembly 4 allows the straight-mouth pressure arm 2 and the double-wheeled electric walking module 3 to approach or move away from the cable;

[0033] A gear drive unit 5, the gear drive unit 5 is arranged on an outer wall of one side of the tripod 1, a planetary gear co-rotation structure 6 for driving three screw diameter adjustment assemblies 4 to move synchronously is installed at the output end of the gear drive unit 5, a partial discharge detector 8 is installed on the outer wall of the tripod 1 on one side of the gear drive unit 5, a wide-band current transformer 7 is installed on the outer wall of the other side of the tripod 1, a motor remote controller 9 electrically connected to the dual-wheel electric travel module 3 and the input end of the gear drive unit 5 is installed on the outer wall of one side of the tripod 1, and a battery 11 is installed on the outer wall of the other side of the tripod 1, and the output end of the battery 11 is electrically connected to the input end of the motor remote controller 9, the dual-wheel electric travel module 3, the gear drive unit 5, the partial discharge detector 8, and the wide-band current transformer 7;

[0034] The wideband current transformer 7 is mainly used to measure current. It converts high current into low current through the induction principle for easy measurement and monitoring. The partial discharge detector 8 is used to detect partial discharge phenomena in the insulating materials of electrical equipment;

[0035] The bevel gear pusher mechanism 10 is arranged at an end angle position on the outer wall of the other side of the tripod 1, and the bevel gear pusher mechanism 10 and the screw rod diameter adjustment assembly 4 maintain power connection;

[0036] In order to avoid unwiring the cable, the staff can pre-process a notch (not shown) on one of the sides of the tripod 1 to facilitate the staff to fit the device and the cable through the notch, so that the device and the cable to be tested can be quickly assembled;

[0037] When the cable or equipment is in operation, the wideband current transformer 7 and the partial discharge detector 8 can work simultaneously. The wideband current transformer 7 monitors the current change in real time, provides the current amplitude and waveform information, and converts the current signal into a low current output, usually a standard voltage signal. At the same time, the wideband current transformer 7 monitors the partial discharge of the insulating material and converts the partial discharge signal into analyzable data. If the wideband current transformer 7 detects a current abnormality such as overload or short circuit, and the partial discharge detector 8 detects a partial discharge signal at the same time, it indicates that there may be an insulation fault or other problems.

[0038] A method for detecting a fault in an electric power device according to the present embodiment, such as the above-mentioned device for detecting a fault in an electric power device, comprises the following steps:

[0039] S101: The operator sets the initial state of the screw diameter adjustment assembly 4 according to the on-site conditions to ensure that the detection dual-wheel electric travel module 3 can be properly pressed on the cable. At this time, the operator sends a working signal to the gear drive unit 5 through the motor remote controller 9, and the rotary power of the gear drive unit 5 is synchronously transmitted to the three screw diameter adjustment assemblies 4 through the planetary gear co-rotation structure 6, so that the dual-wheel electric travel module 3 is debugged and pressed according to the cable diameter to ensure that the device can be stably suspended on the cable;

[0040] S102: A portion of the rotational power of the screw diameter adjustment assembly 4 is synchronously transmitted to the bevel gear pusher mechanism 10, and the bevel gear pusher mechanism 10 also moves synchronously, that is, the bevel gear pusher mechanism 10 presses on the cable and is located at the front end of the wide-band current transformer 7 in the forward direction;

[0041] S103: After the device is debugged, the staff sends a walking work signal to the motor remote controller 9 at the control end, and the motor remote controller 9 controls the two-wheeled electric walking modules 3 to work according to the set direction, speed, angle, and response time, that is, the three two-wheeled electric walking modules 3 drive the tripod 1, the broadband current transformer 7, the partial discharge detector 8, the bevel gear pusher mechanism 10 and other components to move;

[0042] S104: The partial discharge detector 8 monitors the current signal in the cable in real time, and the wide-band current transformer 7 detects the partial discharge of the cable insulation layer. The wide-band current transformer 7 and the partial discharge detector 8 transmit the collected electrical signals to the operator's monitoring interface, and the operator can view the operating status of the cable in real time and analyze whether the cable has any faults or hidden dangers.

[0043] Embodiment 2, based on embodiment 1, Figure 5 and Figure 6The screw rod diameter adjustment assembly 4 includes two steel columns 401 fixed at the corner positions of the outer wall ends of one side of the tripod 1, a front triangular block seat 402 fixed at the top of the two steel columns 401, a screw rod pushing structure 403 installed between the front triangular block seat 402 and the tripod 1, and a slide plate 404 installed at the moving end of the screw rod pushing structure 403. The slide plate 404 and the steel column 401 are slidably matched. A double-layer connecting rod 405 is hinged on the outer wall of one side of the slide plate 404. The bottom end of the double-layer connecting rod 405 is connected to the straight mouth pressure arm 2. The outer walls on one side are hinged to each other, the screw pushing structure 403 includes a screw body rotatably installed between the front triangular block seat 402 and the tripod 1, a nut pair installed on one end of the screw body surface, the nut pair is fixedly connected to the slide plate 404, one end of the screw body is connected to the input end of the bevel gear pushing mechanism 10, and an annular cutting groove for the active gear ring 601 to rotate is provided on the outer wall of the side of the tripod 1 away from the two-wheeled electric walking module 3, and the straight-mouth pressure arm 2 is made of aluminum alloy.

[0044] When the staff is debugging the use status of the device according to the cable specifications, the staff sends a working signal to the motor remote controller 9 at the control end, and the motor remote controller 9 starts the gear drive unit 5 to work, and the rotational power of the gear drive unit 5 is transmitted to the screw push structure 403 in each screw diameter adjustment component 4 through the planetary gear co-rotation structure 6, and the screw push structure 403 drives the slide plate 404 to slide. Since the slide plate 404 is connected to the straight-mouth pressure arm 2 through the double-layer connecting rod 405, the slide plate 404 can drive the straight-mouth pressure arm 2 away from or close to the horizontal central axis of the tripod 1 during the sliding process, so that the two-wheeled electric walking module 3 is debugged according to the cable specifications, so that the device can be stably suspended and walk on the cable. During this process, the screw in the screw diameter adjustment component 4 can maintain a stable state under load;

[0045] The planetary gear co-rotation structure 6 includes an active gear ring 601 rotatably mounted on the outer wall of the other side of the tripod 1 and a planetary gear monomer 602 fixed on the same end of each screw body. The active gear ring 601 and the three planetary gear monomers 602 are meshed with each other. The gear driving unit 5 includes a stepping motor mounted on the outer wall of one side of the tripod 1 and a main gear plate mounted on the output end of the stepping motor. The main gear plate and the active gear ring 601 are meshed with each other. The rotary power of the gear driving unit 5 will first drive the active gear ring 601 to rotate, and the active gear ring 601 drives the screw rod pushing structure 403 in the screw rod diameter adjustment component 4 to move through the planetary gear monomer 602. The active gear ring 601 can evenly distribute the load to multiple planetary gear monomers 602, so as to achieve the purpose of synchronous action of multiple screw rod diameter adjustment components 4.

[0046] The two-wheeled electric walking module 3 includes a C-mouth motor seat 301 fixed on one end of the surface of the straight-mouth pressure arm 2, a first servo motor 305 installed at the bottom of the C-mouth motor seat 301, and a main shaft 302 rotatably installed at one end inside the straight-mouth pressure arm 2. Two rubber wheels 303 are installed at one end of the surface of the main shaft 302. The output end of the first servo motor 305 and one end of the main shaft 302 are installed with a bevel gear transmission structure 304 for maintaining power transmission. After the two-wheeled electric walking module 3 is actively pressed on the cable, the first servo motor 305 operates normally or reverses according to the working signal of the motor remote controller 9, and the first servo motor 305 uses the bevel gear transmission structure 304 to drive the main shaft 302 and the rubber wheel 303 to rotate. The two-wheeled structural design provides better stability, can withstand a certain load and is not easy to overturn, so that the device can walk stably.

[0047] Embodiment 3, based on embodiment 2, Figure 7 and Figure 8 It is given that the bevel gear pushing mechanism 10 includes an L-shaped buckle platform 1002 fixed on the outer wall of one side of the tripod 1, a right-angle seat 1001 installed on the top of the L-shaped buckle platform 1002, a vertical shaft 1003 rotatably installed at the bottom of the right-angle seat 1001, and a horizontal shaft 1005 rotatably installed on the outer wall of one side of the right-angle seat 1001. A spiral bevel gear commutator 1004 for connecting the vertical shaft 1003 and the horizontal shaft 1005 is installed at the bottom of the right-angle seat 1001. A right-angle rubber arm 1006 is fixed on the end of the horizontal shaft 1005 away from the right-angle seat 1001, and a trapezoidal groove is provided on the outer wall of the right-angle rubber arm 1006 close to the horizontal central axis of the tripod 1. 1007, one end of the vertical shaft 1003 is fixedly connected to one end of the screw body. When the gear drive unit 5 and the planetary gear co-rotation structure 6 drive the screw diameter adjustment assembly 4 to work, the screw in the screw pushing structure 403 will drive the vertical shaft 1003 to rotate, and the rotational power of the vertical shaft 1003 is transmitted to the horizontal shaft 1005 through the spiral bevel gear commutator 1004, then the horizontal shaft 1005 will actively drive the right-angle rubber arm 1006 to approach or move away from the direction of the cable and the central axis of the tripod 1, so that the right-angle rubber arm 1006 is pressed on the cable, and the trapezoidal groove 1007 makes the right-angle rubber arm 1006 better fit with the cable;

[0048] When the device moves, the right-angle rubber arm 1006 will always be located in front of the device, so as to actively push away foreign objects on the cable, ensure that the path of the device remains unobstructed during the detection process, and reduce false detection caused by blockage by foreign objects.

[0049] When the embodiment of the present application is used, the staff first removes the end of the cable to be tested from the power equipment, and passes the cable through the tripod 1 and the inside of the wide-band current transformer 7. Then the staff starts the entire device through the motor remote controller 9, and starts the normal operation of the partial discharge detector 8. During this process, the battery 11 provides power for the device to ensure that all components operate normally. The operator sets the initial state of the screw diameter adjustment component 4 according to the on-site conditions to ensure that the detection dual-wheel electric walking module 3 can be properly pressed on the cable. At this time, the staff sends a working signal to the gear drive unit 5 through the motor remote controller 9, and the rotational power of the gear drive unit 5 is transmitted through the planetary gear. The gear co-rotation structure 6 is synchronously transmitted to the three screw diameter adjustment components 4, so that the two-wheeled electric walking module 3 is debugged and tightened according to the cable diameter to ensure that the device can be stably suspended on the cable. At the same time, a part of the rotational power of the screw diameter adjustment component 4 is synchronously transmitted to the bevel gear pushing mechanism 10, and the bevel gear pushing mechanism 10 also moves synchronously, that is, the bevel gear pushing mechanism 10 is pressed on the cable and is located at the front end of the forward direction of the wide-band current transformer 7. After the device is debugged, the staff sends a walking working signal to the motor remote controller 9 at the control end, and the motor remote controller 9 controls the two-wheeled electric walking module 3 according to the set direction, speed, angle, and response time. To work, three two-wheel electric walking modules 3 drive the tripod 1, broadband current transformer 7, partial discharge detector 8, bevel gear pushing mechanism 10 and other components to move. During the movement, the tripod 1 and the two-wheel electric walking module 3 provide stable support for the device to ensure that the device will not tilt or become unstable during walking. When the device moves on the cable, the screw diameter adjustment component 4 adjusts the pressing force of the device on the cable by rotating the screw. Appropriate pressure ensures that the broadband current transformer 7 and the partial discharge detector 8 are in a stable working state, thereby maximizing the detection accuracy. During this process, the partial discharge detector 8 monitors the current signal in the cable in real time, and the broadband current transformer 7 The partial discharge of the cable insulation layer is detected, and the wide-band current transformer 7 and the partial discharge detector 8 transmit the collected electrical signals to the operator's monitoring interface. The operator can view the operating status of the cable in real time and analyze whether the cable has faults or hidden dangers. During the entire detection process, if there is foreign matter on the cable surface, the bevel gear pushing mechanism 10 located at the front end of the device actively pushes it away to ensure that the foreign matter does not interfere with the normal operation of the wide-band current transformer 7 and the partial discharge detector 8, so as to avoid misjudgment caused by foreign matter and ensure the accuracy of the detection results. When the detection is completed, the operator controls the two-wheeled electric walking module 3 through the motor remote controller 9 to make the device walk and return to the initial position.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power equipment fault detection device, characterized in that: include: A tripod (1), wherein a screw diameter adjustment assembly (4) is installed at an end corner position of an outer wall of one side of the tripod (1), and a straight-mouth pressure arm (2) is hinged on the outer wall of the tripod (1) on one side of the screw diameter adjustment assembly (4), and a double-wheeled electric walking module (3) for moving the tripod (1) forward along the extension direction of the cable is installed on the outer wall of one side of the straight-mouth pressure arm (2), and the screw diameter adjustment assembly (4) allows the straight-mouth pressure arm (2) and the double-wheeled electric walking module (3) to approach or move away from the cable; A gear drive unit (5), the gear drive unit (5) being arranged on an outer wall of one side of the tripod (1), the output end of the gear drive unit (5) being installed with a planetary gear co-rotating structure (6) for driving three screw diameter adjustment assemblies (4) to move synchronously, a partial discharge detector (8) being installed on the outer wall of the tripod (1) on one side of the gear drive unit (5), a wide-band current transformer (7) being installed on the outer wall of the other side of the tripod (1), a motor remote controller (9) being installed on the outer wall of one side of the tripod (1) and being electrically connected to the input end of the two-wheeled electric walking module (3) and the gear drive unit (5), a battery (11) being installed on the outer wall of the other side of the tripod (1), the output end of the battery (11) being electrically connected to the input end of the motor remote controller (9), the two-wheeled electric walking module (3), the gear drive unit (5), the partial discharge detector (8), and the wide-band current transformer (7); A bevel gear pushing mechanism (10) is provided at an end angle position on the outer wall on the other side of the tripod (1), and the bevel gear pushing mechanism (10) and the screw diameter adjustment assembly (4) maintain power connection.

2. The power equipment fault detection device according to claim 1, characterized in that: The screw rod diameter adjustment assembly (4) comprises two steel columns (401) fixed at the end corners of the outer wall of one side of the tripod (1), a front triangular block seat (402) fixed at the top ends of the two steel columns (401), a screw rod pushing structure (403) installed between the front triangular block seat (402) and the tripod (1), and a slide plate (404) installed at the movable end of the screw rod pushing structure (403), wherein the slide plate (404) and the front triangular block seat (402) are slidably matched, and a double-layer connecting rod (405) is hinged on the outer wall of one side of the slide plate (404), and the bottom end of the double-layer connecting rod (405) is hinged to the outer wall of one side of the straight-mouth pressure arm (2).

3. The power equipment fault detection device according to claim 2, characterized in that: The screw pushing structure (403) comprises a screw body rotatably mounted between the front triangular block seat (402) and the tripod (1), and a nut pair mounted on one end of the surface of the screw body, the nut pair being fixedly connected to the slide plate (404), and one end of the screw body being interconnected with the input end of the bevel gear pushing mechanism (10).

4. The power equipment fault detection device according to claim 3, characterized in that: The planetary gear co-rotating structure (6) comprises a driving gear ring (601) rotatably mounted on the outer wall of the other side of the tripod (1) and a planetary gear monomer (602) fixed on the same end of each screw body, wherein the driving gear ring (601) and the three planetary gear monomers (602) are meshed with each other.

5. The power equipment fault detection device according to claim 4, characterized in that: The gear drive unit (5) comprises a stepper motor mounted on an outer wall of one side of the tripod (1) and a main gear plate mounted on the output end of the stepper motor, wherein the main gear plate and the active gear ring (601) are meshed with each other.

6. The power equipment fault detection device according to claim 1, characterized in that: The dual-wheel electric walking module (3) comprises a C-type motor seat (301) fixed to one end of the surface of the straight-mouth pressure arm (2), a first servo motor (305) mounted at the bottom end of the C-type motor seat (301), and a main shaft (302) rotatably mounted at one end inside the straight-mouth pressure arm (2), two rubber wheels (303) being mounted at one end of the surface of the main shaft (302), and a bevel gear transmission structure (304) for maintaining power transmission being mounted between the output end of the first servo motor (305) and one end of the main shaft (302).

7. The power equipment fault detection device according to claim 4, characterized in that: An annular cutout groove for the active gear ring (601) to rotate is provided on the outer wall of the tripod (1) on a side away from the dual-wheel electric walking module (3), and the straight-mouth pressure arm (2) is made of an aluminum alloy component.

8. The power equipment fault detection device according to claim 3, characterized in that: The bevel gear pushing mechanism (10) comprises an L-shaped buckle platform (1002) fixed on the outer wall of one side of the tripod (1), a right-angle seat (1001) installed at the top of the L-shaped buckle platform (1002), a vertical shaft (1003) rotatably installed at the bottom of the right-angle seat (1001), and a horizontal shaft (1005) rotatably installed on the outer wall of one side of the right-angle seat (1001), a spiral bevel gear commutator (1004) for connecting the vertical shaft (1003) and the horizontal shaft (1005) is installed at the bottom of the right-angle seat (1001), a right-angle rubber arm (1006) is fixed at one end of the horizontal shaft (1005) away from the right-angle seat (1001), and a trapezoidal groove (1007) is provided on the outer wall of the right-angle rubber arm (1006) on the side close to the horizontal central axis of the tripod (1).

9. The power equipment fault detection device according to claim 8, characterized in that: One end of the vertical shaft (1003) is fixedly connected to one end of the screw rod body.

10. A method for detecting a fault in an electric power device, comprising the electric power device fault detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S101: The operator sets the initial state of the screw diameter adjustment assembly (4) according to the on-site conditions to ensure that the double-wheel electric walking module (3) can be properly pressed on the cable. At this time, the operator sends a working signal to the gear drive unit (5) through the motor remote controller (9), and the rotational power of the gear drive unit (5) is synchronously transmitted to the three screw diameter adjustment assemblies (4) through the planetary gear co-rotation structure (6), so that the double-wheel electric walking module (3) is debugged and pressed according to the cable diameter, ensuring that the device can be stably suspended on the cable; S102: A portion of the rotational power of the screw diameter adjustment assembly (4) is synchronously transmitted to the bevel gear pusher mechanism (10), and the bevel gear pusher mechanism (10) also moves synchronously. The bevel gear pusher mechanism (10) presses on the cable and is located at the front end of the wide-band current transformer (7) in the forward direction. S103: After the device is debugged, the staff sends a walking working signal to the motor remote controller (9) at the control end, and the motor remote controller (9) controls the two-wheeled electric walking module (3) to work according to the set direction, speed, angle, and response time. The three two-wheeled electric walking modules (3) drive the tripod (1), the wide-band current transformer (7), the partial discharge detector (8), and the bevel gear pushing mechanism (10) to move; S104: The partial discharge detector (8) monitors the current signal in the cable in real time, and the wideband current transformer (7) detects the partial discharge of the cable insulation layer. The wideband current transformer (7) and the partial discharge detector (8) transmit the collected electrical signals to the operator's monitoring interface, so that the operator can view the operating status of the cable in real time and analyze whether the cable has any faults or hidden dangers.

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