A track type inspection device for cable trench partial discharge detection

Abstract

The utility model relates to cable channel partial discharge detection technical field especially relates to a track type inspection device for cable channel partial discharge detection. The utility model provides a track type inspection device for cable channel partial discharge detection, including fixed frame, moving plate, sliding assembly, angle regulator, support plate and high frequency current sensor, two moving plates are slidably arranged on the fixed frame, the moving plate top is installed with sliding assembly, and sliding assembly rolls on the track, and the middle position of fixed frame bottom is installed with angle regulator, and the support plate is installed on angle regulator, and the high frequency current sensor is installed in support plate bottom. Start double shaft motor, drive both sides screw rod synchronous rotation, and the screw rod passes through the thread cooperation with moving plate, drives two moving plates along the guide rod and moves oppositely or moves away, thereby adjusts the interval of sliding assembly, makes it adapt to the cable channel track of different width, improves the use efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of partial discharge detection technology in cable trenches, and in particular to a track-type inspection device for partial discharge detection in cable trenches. Background Technology

[0002] Partial discharge testing in cable trenches refers to the process of detecting partial discharge in power cables and their accessories after installation in environments such as trenches and tunnels. Partial discharge is an electrical phenomenon that typically occurs at defects inside or on the surface of insulation materials, such as air gaps, cracks, or other discontinuities. When these problems exist in a cable system, partial discharge may occur under a certain voltage, leading to gradual deterioration of the insulation material and potentially causing cable failure.

[0003] During the inspection and monitoring of cable trenches, mobile inspection devices often need to travel along tracks within the trenches to achieve real-time monitoring of cable conditions. However, the track spacing varies between different cable trenches, and traditional inspection devices typically employ a fixed width design, making them unable to flexibly adapt to various trench environments and limiting the device's versatility and efficiency.

[0004] Therefore, there is a need for a track-type inspection device for partial discharge detection in cable trenches that can be adapted to cable trench tracks of different widths. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies where the track spacing varies between different cable trenches, traditional detection devices typically adopt a fixed width design, which makes them unable to flexibly adapt to various trench environments, limiting the device's versatility and efficiency. This utility model provides a track-type inspection device for partial discharge detection in cable trenches that can adapt to cable trench tracks of different widths.

[0006] The technical implementation scheme of this utility model is as follows: A track-type inspection device for partial discharge detection in cable trenches includes a fixed frame, a movable plate, a sliding assembly, an angle adjuster, a support plate, a high-frequency current sensor, an ultrasonic sensor, and a power supply assembly. Two movable plates are slidably arranged on the fixed frame, and a sliding assembly is installed on the top of the movable plates. The sliding assembly rolls on the track. An angle adjuster is installed at the middle position of the bottom of the fixed frame, and a support plate is installed on the angle adjuster. A high-frequency current sensor and an ultrasonic sensor are installed at the bottom of the support plate. A power supply assembly is arranged inside the fixed frame to supply power to the high-frequency current sensor and the ultrasonic sensor. The device also includes a dual-axis motor, a lead screw, and guide rods. The dual-axis motor is installed inside the fixed frame, and the two output shafts of the dual-axis motor are connected to the lead screw through a coupling. The lead screw is threadedly connected to the movable plate. Guide rods are fixedly connected to both sides of the fixed frame, and the guide rods pass through the movable plates.

[0007] More preferably, it also includes a battery and an isolation plate. Two batteries are placed inside the fixing frame, and isolation plates are snapped onto both the left and right sides of the fixing frame. The isolation plates contact the batteries and limit their movement.

[0008] More preferably, it also includes connecting plates, screws, and heat sinks. Connecting plates are installed on both the left and right sides of the lower part of the fixing frame by screws. Multiple heat sinks are fixedly connected to the connecting plates, and the heat sinks are in contact with the angle adjuster.

[0009] More preferably, it also includes a mounting plate, lighting, and a camera. Mounting plates are installed on both the left and right sides of the lower part of the fixed frame, and two lighting lights are installed on the mounting plates. A camera is installed on the front side of the support plate.

[0010] More preferably, it also includes ball clamps, with two ball clamps fixedly connected to both the left and right sides of the fixed frame, and the ball clamps engaging with the isolation plate.

[0011] More preferably, it also includes a protective shell, with the top of the movable plate having a protective shell that shields the drive structure of the sliding assembly.

[0012] Compared with the prior art, this utility model provides a track-type inspection device for partial discharge detection in cable trenches, which has the following beneficial effects: 1. Start the dual-axis motor to drive the lead screws on both sides to rotate synchronously. The lead screws drive the two moving plates to move in opposite directions or back directions along the guide rod through threaded engagement with the moving plates, thereby adjusting the spacing of the sliding components to adapt to cable trench tracks of different widths and improving the efficiency of the device.

[0013] 2. The heat sink contacts the angle adjuster housing, utilizing the high thermal conductivity of metal to quickly dissipate heat and prevent the angle adjuster from affecting operational stability due to overheating.

[0014] 3. Activate the camera to capture the surface condition of the cable in real time, while the lighting provides auxiliary illumination in dim environments to ensure the clarity of the captured images, facilitating subsequent manual review and analysis, thereby improving the overall inspection efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial sectional view of the components of this utility model, including the fixing frame, the storage battery, and the retaining ball.

[0017] Figure 3 This is a partial sectional view of the dual-axis motor, lead screw, and moving plate components of this utility model.

[0018] Figure 4This is a partial cross-sectional view of the support plate, high-frequency current sensor, and ultrasonic sensor components of this utility model.

[0019] Figure 5 This is a partial sectional view of the connecting plate, screws, and heat sink of this utility model.

[0020] Figure 6 This is a partial sectional view of the mounting plate, lighting lamp, camera, and other components of this utility model.

[0021] The meanings of the reference numerals in the diagram are as follows: 1. Fixed frame; 2. Dual-axis motor; 3. Lead screw; 4. Moving plate; 5. Sliding assembly; 6. Guide rod; 7. Angle adjuster; 71. Support plate; 8. High-frequency current sensor; 9. Ultrasonic sensor; 10. Battery; 11. Isolation plate; 12. Ball retainer; 13. Protective shell; 14. Connecting plate; 15. Screw; 16. Heat sink; 17. Mounting plate; 18. Lighting lamp; 19. Camera. Detailed Implementation

[0022] 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.

[0023] Example 1: A track-mounted inspection device for partial discharge detection in cable trenches. Please refer to [link / reference]. Figures 1-6The system includes a fixed frame 1, movable plates 4, sliding components 5, an angle adjuster 7, a support plate 71, a high-frequency current sensor 8, an ultrasonic sensor 9, and a power supply assembly. Two movable plates 4 are slidably mounted on the fixed frame 1. Sliding components 5 are mounted on the top of the movable plates 4 and roll on tracks. An angle adjuster 7 is mounted at the bottom center of the fixed frame 1, and a support plate 71 is mounted on the angle adjuster 7. The high-frequency current sensor 8 and the ultrasonic sensor 9 are mounted on the bottom of the support plate 71. The power supply assembly is located inside the fixed frame 1 to power the high-frequency current sensor 8 and the ultrasonic sensor 9. The system also includes a battery 10 and an isolation plate 11. Two batteries 10 are placed inside the fixed frame 1. The left side of the fixed frame 1... Isolation plates 11 are snapped onto both sides of the right side. The isolation plates 11 contact the battery 10 and limit the battery 10. The frame also includes a dual-axis motor 2, a lead screw 3, and a guide rod 6. The dual-axis motor 2 is installed inside the fixed frame 1. The two output shafts of the dual-axis motor 2 are connected to the lead screw 3 through a coupling. The lead screw 3 is threadedly connected to the moving plate 4. The guide rod 6 is fixedly connected to both sides of the fixed frame 1 and passes through the moving plate 4. Two retaining balls 12 are fixedly connected to both sides of the fixed frame 1. The retaining balls 12 are snapped onto the isolation plates 11 to reinforce the isolation plates 11 and prevent them from falling off. A protective shell 13 is provided on the top of the moving plate 4. The protective shell 13 covers the drive structure of the sliding component 5 and protects the drive structure of the sliding component 5 from dust or foreign objects.

[0024] When using this device, first start the dual-axis motor 2, which drives the lead screws 3 on both sides to rotate synchronously. The lead screws 3, through threaded engagement with the moving plates 4, drive the two moving plates 4 to move towards or away from each other along the guide rod 6, thereby adjusting the spacing of the sliding components 5 to adapt to cable trench tracks of different widths, improving the efficiency of the device. After adjustment, the sliding components 5 are engaged on the track. Start the sliding components 5, and the sliding components 5 roll on the track, realizing the smooth movement of the device along the cable trench. During the movement, the high-frequency current sensor 8 detects the partial discharge current signal of the cable through electromagnetic induction, while the ultrasonic sensor 9 captures the ultrasonic signal generated by the discharge, realizing multi-modal collaborative monitoring. The angle adjuster 7 can dynamically adjust the angle of the support plate 71 to ensure that the sensor is always aligned with the cable, improving the signal acquisition accuracy.

[0025] Example 2: Based on Example 1, please refer to... Figure 5 It also includes a connecting plate 14, screws 15 and heat sink 16. The connecting plate 14 is installed on both the lower left and right sides of the fixed frame 1 by screws 15. Several heat sinks 16 are fixedly connected to the connecting plate 14 and the heat sinks 16 are in contact with the angle adjuster 7.

[0026] When the angle adjuster 7 is running, the heat sink 16 contacts the housing of the angle adjuster 7, and uses the high thermal conductivity of metal to quickly dissipate heat, thus preventing the angle adjuster 7 from affecting its operational stability due to overheating.

[0027] Please see Figure 1 and Figure 6 It also includes a mounting plate 17, a lighting lamp 18 and a camera 19. The mounting plate 17 is installed on both the lower left and right sides of the fixed frame 1. Two lighting lamps 18 are installed on the mounting plate 17. The camera 19 is installed on the front side of the support plate 71.

[0028] During the inspection process, camera 19 is activated to capture the surface condition of the cable in real time, while lighting 18 provides auxiliary lighting in the dim environment to ensure the clarity of the acquired images, which facilitates subsequent manual review and analysis, thereby improving the overall inspection efficiency.

[0029] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A track-type inspection device for partial discharge detection in cable trenches, comprising a fixed frame (1), a movable plate (4), a sliding assembly (5), an angle adjuster (7), a support plate (71), a high-frequency current sensor (8), an ultrasonic sensor (9), and a power supply assembly. Two movable plates (4) are slidably arranged on the fixed frame (1). A sliding assembly (5) is installed on the top of the movable plate (4) and rolls on the track. An angle adjuster (7) is installed at the middle position of the bottom of the fixed frame (1). A support plate (71) is installed on the angle adjuster (7). A high-frequency current sensor (8) and an ultrasonic sensor (9) are installed at the bottom of the support plate (71). A power supply assembly is provided inside the fixed frame (1) to supply power to the high-frequency current sensor (8) and the ultrasonic sensor (9). The device is characterized by: It also includes a dual-axis motor (2), a lead screw (3) and a guide rod (6). The dual-axis motor (2) is installed inside the fixed frame (1). The two output shafts of the dual-axis motor (2) are connected to the lead screw (3) through a coupling. The lead screw (3) is threadedly connected to the moving plate (4). The guide rod (6) is fixedly connected to both sides of the fixed frame (1). The guide rod (6) passes through the moving plate (4).

2. The track-mounted inspection device for partial discharge detection in cable trenches according to claim 1, characterized in that: It also includes a storage battery (10) and an isolation plate (11). Two storage batteries (10) are placed inside the fixed frame (1). Isolation plates (11) are snapped onto both the left and right sides of the fixed frame (1). The isolation plates (11) contact the storage batteries (10) and limit the storage batteries (10).

3. A track-type inspection device for partial discharge detection in cable trenches according to claim 2, characterized in that: It also includes a connecting plate (14), screws (15) and a heat sink (16). The connecting plate (14) is installed on both the left and right sides of the lower part of the fixed frame (1) by screws (15). Multiple heat sinks (16) are fixedly connected to the connecting plate (14), and the heat sinks (16) are in contact with the angle adjuster (7).

4. A track-type inspection device for partial discharge detection in cable trenches according to claim 3, characterized in that: It also includes a mounting plate (17), a lighting lamp (18) and a camera (19). The mounting plate (17) is installed on both the left and right sides of the lower part of the fixed frame (1). Two lighting lamps (18) are installed on the mounting plate (17). A camera (19) is installed on the front side of the support plate (71).

5. A track-type inspection device for partial discharge detection in cable trenches according to claim 4, characterized in that: It also includes a ball (12), and two balls (12) are fixedly connected to the left and right sides of the fixed frame (1), and the balls (12) are snapped into the isolation plate (11).

6. A track-type inspection device for partial discharge detection in cable trenches according to claim 5, characterized in that: It also includes a protective shell (13), the top of the movable plate (4) is provided with a protective shell (13), and the protective shell (13) covers the drive structure of the sliding assembly (5).

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