Cable jacket defect detection platform

Abstract

The invention discloses a cable jacket defect detection platform, belongs to the technical field of power cable detection, and particularly relates to a power cable jacket defect detection platform. A cable penetrates into the front cable support and then penetrates through the cleaning support, and stains and dust on the surface of the cable are cleaned through the cleaning support. Then, the cable enters a silver light powder support, and the surface of the cable is completely attached through silver light powder; afterwards, the cable enters an image acquisition support, image data of the surface of the cable are obtained through an image acquisition camera, and identification of the surface defects of the cable is completed through image display of silver light powder; afterwards, the cable enters the rear cable support. The driving force of the cable in the equipment is mainly provided by the cable conveying bracket, and the cable conveying bracket drives the rolling shaft to rotate through the conveying motor so as to drive the cable to move forwards. Through a motor driving method, the cable conveying stability can be effectively improved, and manual operation is reduced to the maximum extent in cooperation with fixed supporting of the cable support; through cooperation of the silver light powder and the image acquisition equipment, data acquisition of the whole area of the cable surface can be completed, and the defect analysis accuracy is improved.

Description

Technical Field

[0001] This invention belongs to the field of power cable testing technology, and in particular relates to a power cable outer sheath defect detection platform. Background Technology

[0002] Power cables are used to transmit electrical energy and include low-voltage cables, high-voltage cables, ultra-high-voltage cables, and extra-high-voltage cables. They are commonly found in power grids, buildings, and industrial fields. The outer sheath of a power cable is usually composed of insulating material, which protects the inner sheath from mechanical damage and chemical corrosion and increases the cable's mechanical strength, i.e., it provides tensile and compressive strength. If the surface of the outer sheath of a power cable is damaged, the influence of the external environment will reduce the insulation performance of the cable's insulation layer, thereby affecting the service life of the power cable. Timely repair or replacement is necessary to avoid affecting the normal use and safe operation of the power cable.

[0003] Existing methods for detecting damage to the outer sheath of power cables require DC withstand voltage testing. However, DC withstand voltage testing can only assess the overall insulation resistance of the power cable and cannot detect localized defects such as scratches on the outer sheath surface. These defects may affect the safe operation of the power cable but are not easily detected by DC withstand voltage testing. Therefore, this invention proposes a power cable outer sheath defect detection platform to solve the above problems. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A cable sheath defect detection platform, comprising:

[0006] Cable brackets serve to support and fix cables, and have an internal circular channel through which the cable passes. The circular channel makes rolling contact with the cable through rubber wheels in four directions, thus achieving fixed transport of the cable.

[0007] The cleaning bracket is used to clean the cable surface. When the cable passes through the cleaning bracket, high-pressure cleaning fluid can be sprayed from the nozzles in four directions around the circular channel to clean the dirt and dust on the cable surface.

[0008] The silver powder bracket allows silver powder to be sprayed from nozzles in four directions around the circular channel when the cable passes through it, so that the silver powder can completely adhere to the surface of the cable.

[0009] The image acquisition bracket allows the cable surface to be captured by image acquisition cameras in four directions around the circular channel when the cable passes through the cleaning bracket. The four-directional image acquisition cameras ensure that the area around the cable is completely captured.

[0010] The cable conveying support has rollers on the top and bottom, which can drive the cable forward by rolling simultaneously.

[0011] Preferably, the rubber wheels inside the cable bracket in four directions are compressible to ensure that the cable can be pressed tightly when in contact with the cable;

[0012] Preferably, the present invention provides two cable supports, one at the front and one at the rear, to ensure that the cable remains stable during movement;

[0013] Preferably, motors are installed on both sides of the cable conveyor bracket, and each motor is connected to a roller to drive the roller to rotate;

[0014] Preferably, the two rollers in the cable conveyor bracket can clamp the cable by adjusting the distance, ensuring the effectiveness of cable conveying.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, through a motor-driven method, can effectively improve the stability of cable transportation. Combined with the fixed support of cable brackets, it enables rapid and sensitive extraction of cable surface defects, minimizing human intervention.

[0017] 2. This invention can change the cable channel area by utilizing the compressibility of the rubber wheel, which facilitates defect detection of different types of cables and meets the actual needs of different monitoring.

[0018] 3. This invention, through the combination of silver powder and image acquisition equipment, can complete the acquisition of data for the entire surface area of ​​the cable. This method can ensure the acquisition of data for the entire surface of the cable and improve the accuracy of defect analysis. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a cable sheath defect detection platform according to one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of a front cable bracket in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a cleaning bracket in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a silver powder support in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of an image acquisition bracket according to one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of a rear cable bracket in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a cable conveying bracket according to one embodiment of the present invention;

[0026] (1) Front cable bracket; (1-1) Rubber wheel; (2) Cleaning bracket; (2-1) Cleaning fluid nozzle; (3) Silver powder bracket; (3-1) Silver powder nozzle; (4) Image acquisition bracket; (4-1) Camera; (5) Rear cable bracket; (6) Cable conveying bracket; (6-1) Conveyor motor; (6-2) Roller; (7) Base; (8) Cable. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-7 The present invention provides a technical solution:

[0029] The cable (8) is inserted into the front cable bracket (1), and then the cable (8) passes through the cleaning bracket (2). High-pressure cleaning fluid is sprayed from the nozzles in four directions around the inside of the cleaning bracket (2) to clean the dirt and dust on the surface of the cable. Then, the cable (8) enters the silver powder bracket (3). Silver powder is sprayed from the nozzles in four directions around the channel inside the silver powder bracket (3) to completely adhere the surface of the cable (8). Then, the cable (8) enters the image acquisition bracket (4). The image acquisition cameras in four directions around the channel capture image data of the cable surface. The image acquisition cameras in four directions can ensure that the area around the cable is completely captured. The identification of defects on the surface of the cable is completed by displaying the image of the silver powder. Then, the cable (8) enters the rear cable bracket (5).

[0030] The driving force of the cable (8) in this device is mainly provided by the cable conveying bracket (6). The cable conveying bracket (6) is equipped with conveying motors (6-1) on both sides. Each conveying motor (6-1) is connected to a roller (6-2) and can drive the roller (6-2) to rotate, thereby driving the cable (8) to move forward. The two rollers (6-2) in the cable conveying bracket (6) can clamp the cable (8) by adjusting the distance.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable sheath defect detection platform, characterized in that, include: Front cable bracket (1), the front cable bracket (1) fixes and supports the cable (8); Cleaning bracket (2), the cleaning bracket (2) completes the cleaning of dirt and dust on the cable surface; Silver powder bracket (3), the silver powder bracket (3) uses silver powder to completely adhere to the surface of the cable; Image acquisition bracket (4), the image acquisition bracket (4) can obtain image data of the cable surface; The rear cable bracket (5) and the front cable bracket (5) fix and support the cable (8); The cable conveying bracket (6), which is associated with the cable conveying bracket (5), provides driving force for the conveying of the cable (8). The base (7) is the supporting part of all the above functional brackets.

2. The cable sheath defect detection platform according to claim 1, characterized in that: The front cable bracket (1) also includes: The front cable bracket (1) has a circular channel through which the cable passes, and the circular channel makes rolling contact with the rubber wheels (1-1) in four directions through which the cable passes.

3. The cable sheath defect detection platform according to claim 1, characterized in that: The cleaning bracket (2) also includes: The cleaning bracket (2) has cleaning fluid nozzles (2-1) installed in four directions around the circular channel, which can spray high-pressure cleaning fluid.

4. The cable sheath defect detection platform according to claim 1, characterized in that: The silver powder support (3) also includes: The circular channel of the silver powder holder (3) is equipped with silver powder nozzles (3-1) in four directions, which can spray out silver powder.

5. The cable sheath defect detection platform according to claim 1, characterized in that: The image acquisition bracket (4) also includes: Image acquisition cameras (4-1) are installed in four directions around the circular channel of the image acquisition bracket (4) to capture image data of the cable surface.

6. The cable sheath defect detection platform according to claim 1, characterized in that: The cable delivery bracket (6) also includes: The cable conveying bracket (6) is equipped with rollers on the top and bottom. When the two rollers roll simultaneously, they can drive the cable forward.

7. The rubber wheel (1-1) according to claim 2, characterized in that: The rubber wheel (1-1) makes rolling contact with the cable (8), and the rubber wheel (1-1) in all four directions is compressible, ensuring that it can press the cable (8) when in contact with it, thus fixing the cable (8).

8. The cleaning fluid nozzle (2-1) according to claim 3, characterized in that: The cleaning fluid nozzle (2-1) can spray high-pressure cleaning fluid. The nozzles in four directions can completely cover the surface of the cable (8) to clean all the dirt and dust on the cable surface.

9. The silver powder nozzle (3-1) according to claim 4, characterized in that: The silver powder nozzle (3-1) can spray out silver powder. The nozzles in the four directions around the channel can completely cover the surface of the cable (8). The silver powder has strong adhesion and can be used to completely cover the surface of the cable.

10. The camera (4-1) according to claim 5, characterized in that: The image acquisition by the camera (4-1) in four directions can ensure that the area around the cable is completely captured, and the distribution of silver powder on the surface of the cable (8) is collected using digital imaging technology.

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