Cable testing device for marine engineering equipment and testing method therefor

Abstract

The present invention relates to the technical field of cable testing, and specifically relates to a cable testing device for marine engineering equipment and a testing method therefor. The cable testing device comprises a support, a testing machine, a testing tool, a cushion platform, a base and a drive electric motor, wherein the support is arranged on the ground, the testing machine is mounted on the support, the testing tool is mounted on the side surface of the testing machine, the cushion platform is mounted on the testing machine, bases are mounted on two sides of the cushion platform, and the drive electric motor is mounted on the base. The cable testing device further comprises a power assembly, a clamping mechanism and a fixing mechanism, wherein the power assembly is mounted at an output end of the drive electric motor, the clamping mechanism is mounted on one inner side surface of the base, and the fixing mechanism is mounted on the other inner side surface of the base. The power assembly drives a gear disc and a rotary toothed disc to rotate in the same direction, and a clamping assembly and a fixing assembly press and fix a cable; after the clamping mechanism and the fixing mechanism achieve dual locking at two ends of the cable, the testing tool conducts performance testing on the cable.

Description

Cable testing device for marine engineering equipment and testing method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of cable testing, and particularly relates to a cable testing device for marine engineering equipment and a testing method thereof. BACKGROUND

[0002] The cable for marine engineering equipment plays a crucial role in the marine environment, and its particularity mainly lies in the need to cope with extreme environmental conditions and complex working requirements. The main particularity of the marine engineering equipment cable is as follows: there is a large amount of salt in seawater, which has a strong corrosive effect on metal materials. Therefore, marine cables usually use corrosion-resistant materials such as stainless steel sheath, galvanized steel wire or special coatings to prevent corrosion. Long-term exposure to a humid environment requires that the cable's insulating material have moisture resistance to prevent the insulation layer from degrading or the electrical conductivity from decreasing. During installation and operation of marine equipment, the cable may be subjected to high tension and tension, so it needs to have high tensile strength and elasticity. There may be sharp objects on the seabed or the surface of the equipment, and the outer sheath of the cable needs to have high wear resistance to prevent surface damage and exposure of the internal conductor.

[0003] The cable must have excellent waterproof performance to prevent seawater from entering and causing short circuits or conductor corrosion. A multi-layer sealing structure is often used, such as a rubber sealing layer, a plastic sheath, etc. In deep-sea environments, cables need to withstand high pressure, and are usually designed with thick sheaths or use pressure-resistant materials to ensure that the structure does not fail under high pressure. In complex marine environments, cables may be subject to external electromagnetic interference, and a shielding layer (such as braided copper wire, aluminum foil, etc.) helps to reduce electromagnetic interference and improve signal transmission quality. In marine environments, cables may experience large temperature changes, especially in shallow and deep sea areas. Therefore, cable materials need to have good temperature resistance to ensure normal operation at high and low temperatures. Marine equipment may experience frequent movement and vibration during operation, and cables need to have good flexibility to adapt to the dynamic changes of the equipment and avoid breaking or damage.

[0004] Mechanical testing equipment is used to evaluate the durability and stability of the cable under physical stress. It is used to test the tensile strength and ductility of the cable to ensure that the cable does not break due to excessive tension during application. It is used to detect the wear resistance of the cable under friction, scratching, etc., especially in applications that require frequent bending or movement. The cable is tested for durability in repeated bending to simulate the bending and twisting of the cable in use. It is used to evaluate the structural stability of the cable under torsional force to ensure that it does not fail after multiple twists.

[0005] The existing cable test dress is generally used for normal industrial life cable, the diameter of which is small, and can be fixed by clamping, but the cable used for ocean engineering is not only large in diameter, but also more tough in material, so it is more difficult to keep it fixed during the test.

[0006] In view of the above, in order to overcome the above technical problems, the present application designs a cable test device for ocean engineering equipment and a test method thereof, which solves the above technical problems.

[0007] SUMMARY

[0008] The technical purpose to be achieved by the present application is to invent a new cable test device for ocean engineering equipment and a test method thereof, to improve the fixing problem of large cable used for ocean engineering equipment during the test, to ensure the accuracy of the test and to improve the success rate of the test.

[0009] In order to achieve the above technical purpose, the present application provides the following technical scheme:

[0010] The marine engineering equipment cable testing device includes a support, a testing machine, testing tools, a cushion, a base, and a drive motor. Each component is carefully designed in terms of structure and function to ensure accurate performance testing of the cable under various conditions. The support is the basic structure of the testing device, responsible for securely mounting the entire device on the ground. The support is usually made of high-strength metal to ensure that the device does not shift or deform under high loads or vibrations. The testing machine is the core component of the device, installed above the support, and used to control and perform various testing operations. The testing machine is equipped with testing tools on the side, which are a set of devices used to apply friction, tension, torsion, and other stresses to the cable. The testing tools are usually composed of multiple tool heads that can be replaced according to different testing needs, such as wear tools for wear resistance testing or tension tools for tensile strength testing. Above the testing machine, there is a cushion that provides additional support and cushioning. The cushion ensures that the cable is evenly stressed during testing, preventing unnecessary damage to the cable caused by the movement of the testing machine. The base is installed on both sides of the cushion, responsible for bearing the weight of the entire testing system and providing a stable mounting platform for the drive motor. The drive motor is installed above the base and provides power to the testing device. The drive motor achieves precise rotational speed and torque output through the control system, enabling the gear disc and rotating teeth disc to rotate synchronously. The design of the power system is crucial as it determines the size and stability of the force applied by the testing tools to the cable, affecting the accuracy of the test results. In addition, the device includes a power assembly, a clamping mechanism, and a fixing mechanism, which work together to ensure the stability of the cable during testing. The power assembly is installed at the output end of the drive motor and is used to transfer the motor's power to the gear disc and rotating teeth disc. The clamping mechanism and fixing mechanism are installed on the inner side of the base, respectively, to securely lock the two ends of the cable in the testing position, preventing the cable from moving or coming loose during testing.

[0011] The power assembly is composed of a power shaft, a power roller, an installation slot, and a power tooth. Specifically, the power shaft is located at one end of the drive motor and is directly connected to the drive motor to transfer the rotational force output by the motor. The power roller is installed at the other end of the power shaft and is fixedly connected to the power shaft, serving as an intermediate transmission part. The installation slot is designed with two and is evenly distributed on the side of the power roller. It is annular in shape and can accommodate and fix other elements. The design of the installation slot not only ensures the stable installation of the power tooth but also effectively reduces friction and improves transmission efficiency. The power tooth is installed in the installation slot and serves as a key part of the transmission chain. It can precisely mesh with other mechanical components to ensure efficient transmission and stable operation of the entire power system, thereby improving the overall performance and work efficiency of the mechanical equipment.

[0012] The clamping mechanism is composed of a mounting assembly, a clamping assembly, and a rotating disc, and has a multi-point clamping function. Specifically, the mounting assembly is fixed on the upper part of the base to provide stable support. The number of clamping assemblies is 3-5, which are evenly distributed on the side of the mounting assembly to clamp the object to be processed or fixed and ensure its stability. The rotating disc is installed on the side of each clamping assembly to adjust the opening and closing of the clamping assembly by rotating, which facilitates quick adjustment of the clamping force and angle, thereby realizing precise and efficient clamping operation and meeting the use requirements in different scenarios.

[0013] The mounting assembly is composed of a mounting plate, a mounting hole, an installation block, a limiting block, and a fixing pin, which has a reasonable structure design and clear function. The mounting plate is firmly installed on the upper part of the base to provide basic support for the entire clamping mechanism. The mounting hole is arranged on the side of the mounting plate to facilitate connection and fixation with other components. The number of installation blocks is consistent with the number of clamping assemblies to ensure that each clamping assembly can be firmly combined with the mounting plate. The limiting block is located on the inner side of the installation block to limit the movement range of the installation block and prevent it from shifting, thereby ensuring the running accuracy and safety of the device. The fixing pin is installed above the installation block to lock and fix, further enhancing the stability and durability of the mounting assembly, and ensuring reliable mechanical connection of the entire device during operation.

[0014] The clamping assembly is composed of a clamping block, a clamping surface, an anti-slip stripe, a rotating pin, and a rotating sleeve. The clamping block is installed on the side of the mounting assembly and serves as the core part of the clamping device, which can firmly clamp the cable. The clamping surface is arranged on the side of the clamping block and designed as an inner concave arc surface to increase the contact area with the object and ensure more stable and reliable clamping. The clamping surface is provided with anti-slip stripes, which are arranged in a herringbone shape and distributed in a rectangular array to increase the friction and prevent the object from slipping during clamping. The rotating pin is located above the clamping block and is responsible for transmitting the rotating force to make the clamping block adjust the position flexibly to adapt to objects of different shapes and sizes. The rotating sleeve is installed on the side of the clamping block and cooperates with the rotating pin to further optimize the flexibility of the clamping block, making the entire clamping operation more precise and efficient, and ensuring the safety and stability of the clamped object.

[0015] The rotating disc is composed of a rotating plate, a connecting block, a gear disc and a matching hole, and has a compact overall structure and clear functions. The rotating plate is fixedly installed on the side of the installation assembly and serves as a basic component of the rotating disc, supporting the rotation function of the entire structure. The connecting block is installed on the side of the rotating plate and plays a connecting and transmitting role, stably connecting the rotating plate and the gear disc together to ensure effective power transmission. The gear disc is installed on the side of the connecting block and is a key component in the entire rotating mechanism, achieving rotation function through the meshing of gears. The matching hole is uniformly distributed in an annular array on the surface of the gear disc, providing an interface for cooperation with other mechanical components, so that the entire rotating disc can accurately control the rotation angle and position, thereby ensuring the efficiency and reliability of the equipment operation.

[0016] The fixed assembly is composed of a rotating tooth disc, a limiting sliding slot, a fixed disc and a fixed assembly, and has precise functional design and stable structure. The rotating tooth disc is installed on the side of the power assembly and is an important part of mechanical rotation, and the surface thereof is provided with a limiting sliding slot to ensure accurate control of the rotation process. The limiting sliding slot is opened as a circular arc to adapt to the rotation requirement of the rotating tooth disc and provide a stable movement trajectory to prevent the equipment from deviating during operation. The fixed disc is installed on the side of the bottom and provides basic support and fixed position for the entire fixed assembly. The fixed assembly is installed inside the fixed disc to ensure the close combination and stable operation of each component. Through this design, the fixed assembly can effectively lock and adjust the position of the mechanical components, so that the entire system maintains high stability and reliability during operation, ensuring the normal operation and long-term use of the equipment.

[0017] The fixed disc is composed of three parts: a mounting grommet, a partition block and a positioning sliding slot, and has precise design and clear functions. The mounting grommet is stably installed on the side of the base to provide stable support and foundation for the entire fixed disc. The partition block is arranged on the side of the mounting grommet, which mainly forms a hollow slot area to ensure accurate installation and function distribution of the fixed assembly. The positioning sliding slots are arranged at the centerline positions of the two sides of the partition block, which can accurately cooperate with other mechanical components to ensure accurate positioning and stability of the components. Through this structural design, the fixed disc can effectively adjust and lock the position.

[0018] The fixing assembly is composed of a fixing slider, a sliding pin, a positioning block, a contact surface and a fixing head, and is designed to provide precise fixing and adjustment functions. The fixing slider is installed in the middle position of the fixing disc and serves as the core component of the fixing assembly, responsible for bearing and stabilizing other accessories. The sliding pin is installed on one end of the fixing slider to provide sliding support, allowing the fixing slider to move and adjust as needed. The positioning block is installed on the side of the fixing slider to help the fixing slider maintain an accurate position on the fixing disc, ensuring that it does not deviate during operation. The contact surface is provided on the fixing slider, away from the sliding pin, and is designed as a contact point that directly contacts the object to be fixed, ensuring stable clamping. The fixing head is located in the middle of the contact surface and is a crucial part of the entire fixing assembly. The fixing head is made of sharp hard material and can generate high fixing force on the contact surface, ensuring that the object is firmly clamped and fixed. Such design enables the fixing assembly to provide reliable support and precise fixing function in various mechanical operations.

[0019] A method for testing a cable of offshore engineering equipment, the method being used in conjunction with the offshore engineering equipment cable testing device described above, the steps of the method being as follows:

[0020] S1: Cut a sample (50-60 cm) from the cable to be tested, ensuring that the appearance of the cable has no pre-existing physical damage or defects;

[0021] S2: Use the clamping mechanism and fixing mechanism to firmly fix both ends of the cable on the test platform, start the drive motor to clamp the cable, ensure that the cable does not move during the test, and keep the cable in a slightly tensioned state after being fixed to simulate the tension state in actual use;

[0022] S3: Set the friction frequency (such as the number of reciprocating times per minute) and friction stroke (the distance the wear tool moves along the surface of the cable) of the test tool, and use a force sensor to ensure that the force of each friction remains constant, set the number of frictions or test time (such as 100 reciprocating frictions or continuous test for 10 minutes);

[0023] S4: Start the test tool and begin to scratch and rub the surface of the cable. During the test, keep an eye on it to ensure that the test tool contacts the cable evenly without deviation;

[0024] S5: After the test is completed, stop the test tool and remove the cable sample, use a microscope or other detection instrument to check the wear of the cable surface, record the degree of scratching or wear (such as cracks, skin damage, etc.), measure the change of the outer diameter of the cable, and analyze the influence of wear on the outer diameter.

[0025] The beneficial effects of the present application are as follows:

[0026] 1. The present application improves the fixing problem of large cables used in marine engineering equipment during testing by setting up clamping mechanism and fixing mechanism. The position of the cable can be locked during testing, which can avoid displacement or distortion of the cable during testing, thereby improving the accuracy and reliability of test data. Stable cable position can ensure that the test results truly reflect the cable performance and avoid errors caused by cable movement. If the cable is not properly fixed during testing, it may cause accidental pulling or breaking, which may cause equipment damage or safety hazards. Effective clamping and fixing can reduce these risks and ensure the safety of operators and equipment. Stable cable fixing method can reduce the adjustment time and complexity during testing, making the testing process more efficient. Reducing the frequency of re-adjustment due to cable displacement improves overall work efficiency. By reducing unnecessary movement of the cable during testing, the wear and tear of the cable and testing equipment can be reduced, prolonging the service life of the equipment and reducing the frequency of maintenance and replacement. Ensuring that the cable is in the same position during each test helps improve test repeatability, making it easier to perform reliable comparative analysis and quality control.

[0027] 2. The present application realizes the fixation and anti-rotation of the cable by setting up a power assembly to drive the clamping mechanism and the fixing mechanism simultaneously, optimizing the traditional fixing method by inserting the fixing head into the cable to ensure the fixing strength. The insertion of the fixing head into the cable can provide stronger clamping force to ensure the stability of the cable during testing. This close combination reduces the sliding or movement of the cable during operation and improves the reliability of the fixation. The design of the power assembly can effectively prevent the cable from rotating or twisting during testing. This helps to maintain the consistency of test conditions and avoid test data errors caused by cable rotation. By simultaneously driving the clamping mechanism and the fixing mechanism, the cable fixation process can be completed more quickly and efficiently. Reducing the time for manual adjustment and multiple checks improves overall work efficiency. The optimized fixing method reduces friction and wear during clamping, prolonging the service life of the equipment and the cable. The design of the fixing head ensures uniform pressure distribution during clamping, reducing the problem of excessive local pressure. Since the cable can maintain the same fixed state during each test, the consistency of test results is significantly improved. This helps to perform more accurate comparative analysis and quality control. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0029] The above and other aspects of the present application will now be described, by way of example only, with reference to the accompanying drawings in which:

[0030] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0031] Fig. 2 is a schematic diagram of the power assembly, clamping mechanism and fixing mechanism of the present application;

[0032] Fig. 3 is a schematic diagram of the power assembly of the present application;

[0033] Fig. 4 is a schematic diagram of the clamping mechanism of the present application;

[0034] Fig. 5 is a schematic diagram of the mounting assembly of the present application;

[0035] Fig. 6 is a schematic diagram of the clamping assembly of the present application;

[0036] Fig. 7 is a schematic diagram of the rotating disc of the present application;

[0037] Fig. 8 is a schematic diagram of the fixing mechanism of the present application;

[0038] Fig. 9 is a schematic diagram of the position of the limiting sliding slot of the present application;

[0039] Fig. 10 is a schematic diagram of the fixing disc of the present application;

[0040] Fig. 11 is a schematic diagram of the fixing assembly of the present application.

[0041] In the drawings: 1, support; 2, testing machine; 3, testing tool; 4, cushion table; 5, base; 6, driving motor; 7, power assembly; 71, power shaft; 72, power rolling block; 73, mounting slot; 74, power tooth; 8, clamping mechanism; 81, mounting assembly; 811, mounting plate; 812, mounting hole; 813, mounting block; 814, limiting block; 815, fixing pin; 82, clamping assembly; 821, clamping block; 822, clamping surface; 823, anti-skid stripe; 824, rotating pin; 825, rotating sleeve; 83, rotating disc; 831, rotating plate; 832, connecting block; 833, gear disc; 834, matching hole; 9, fixing mechanism; 91, rotating tooth disc; 92, limiting sliding slot; 93, fixing disc; 931, mounting cushion ring; 932, separating block; 933, positioning sliding slot; 94, fixing assembly; 941, fixing sliding block; 942, sliding pin; 943, positioning block; 944, contact surface; 945, fixing head. DETAILED DESCRIPTION

[0042] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments.

[0043] As shown in FIG. 1-11, the marine engineering equipment cable testing device includes a support 1, a testing machine 2, a testing tool 3, a cushion 4, a base 5, and a drive motor 6, and other components. Each component is carefully designed in structure and function to ensure that the device accurately tests the performance of the cable under various conditions. The support 1 is the basic structure of the testing device, responsible for firmly installing the entire device on the ground. The material of the support 1 is usually high-strength metal to ensure that the device does not shift or deform under high load or vibration. The testing machine 2 is the core component of the device, installed above the support 1, used to control and perform various test operations. The testing machine 2 is installed on the side of the testing tool 3, which is a set of devices for applying friction, tension, torsion and other stresses to the cable. The testing tool 3 is usually composed of multiple tool heads, which can be replaced according to different test requirements, such as wear tools for wear resistance tests, or tension tools for tensile tests. Above the testing machine 2, a cushion 4 is also provided, which mainly provides additional support and cushioning. The cushion 4 can ensure that the cable is evenly stressed during testing, avoiding unnecessary damage to the cable caused by the movement of the testing machine 2. The base 5 is installed on both sides of the cushion 4, responsible for bearing the weight of the entire test system, while providing a stable mounting platform for the drive motor 6. The drive motor 6 is installed above the base 5, used to provide power source for the testing device. The drive motor 6 realizes precise speed and torque output through the control system, which can drive the gear disc 833 and the rotating tooth disc 91 to rotate synchronously. The design of the power system is very critical, as it determines the size and stability of the force exerted by the testing tool 3 on the cable, thereby affecting the accuracy of the test results. In addition, the device also includes a power assembly 7, a clamping mechanism 8 and a fixing mechanism 9, which work together to ensure the stability of the cable during testing. The power assembly 7 is installed at the output end of the drive motor 6, used to transmit the power of the motor to the gear disc 833 and the rotating tooth disc 91. The clamping mechanism 8 and the fixing mechanism 9 are respectively installed on the inner side of the base 5, used to firmly lock the two ends of the cable in the test position, preventing the cable from moving or loosening during testing.

[0044] As shown in FIG. 3, the power assembly 7 is composed of a power shaft 71, a power roller 72, a mounting slot 73 and a power tooth 74, which specifically includes the following structures and functions: the power shaft 71 is located at one end of the driving motor 6 and is directly connected with the driving motor 6 for transmitting the rotational force output by the motor. The power roller 72 is installed at the other end of the power shaft 71 and is fixedly connected with the power shaft 71 as an intermediate transmission member. The mounting slot 73 is designed as two and is evenly distributed on the side surface of the power roller 72, which is annular in shape and can accommodate and fix other elements. The design of the mounting slot 73 not only ensures the stable installation of the power tooth 74, but also effectively reduces friction and improves transmission efficiency. The power tooth 74 is installed in the mounting slot 73 and serves as a key part of the transmission chain, which can precisely mesh with other mechanical components to ensure efficient transmission and stable operation of the entire power system, thereby improving the overall performance and work efficiency of the mechanical equipment.

[0045] As shown in FIG. 4, the clamping mechanism 8 is composed of a mounting assembly 81, a clamping assembly 82 and a rotating disc 83, which has a multi-point clamping function. Specifically, the mounting assembly 81 is fixed on the upper part of the base 5 to provide stable support. The number of clamping assemblies 82 is 3 to 5, which are evenly distributed on the side surface of the mounting assembly 81 for clamping the objects to be processed or fixed to ensure their stability. The rotating disc 83 is installed on the side surface of each clamping assembly 82 to adjust the opening and closing of the clamping assembly 82 by rotation, which facilitates quick adjustment of the clamping force and angle to achieve precise and efficient clamping operation and meet the use requirements in different scenarios.

[0046] As shown in FIG. 5, the mounting assembly 81 is composed of a mounting plate 811, a mounting hole 812, an installation block 813, a limiting block 814 and a fixing pin 815, which has a reasonable structure design and clear function. The mounting plate 811 is stably installed on the upper part of the base 5 to provide basic support for the entire clamping mechanism 8. The mounting hole 812 is arranged on the side of the mounting plate 811 to facilitate connection and fixation with other components. The number of installation blocks 813 is consistent with that of the clamping assemblies 82 to ensure that each clamping assembly 82 can be firmly combined with the mounting plate 811. The limiting block 814 is located on the inner side surface of the installation block 813 to limit the movement range of the installation block 813 and prevent it from deviating, thereby ensuring the running accuracy and safety of the device. The fixing pin 815 is installed above the installation block 813 to play a locking and fixing role, which further enhances the stability and durability of the mounting assembly 81 and ensures reliable mechanical connection of the entire device during operation.

[0047] As shown in Figure 6, the clamping assembly 82 is composed of a clamping block 821, a clamping surface 822, anti-slip stripes 823, a rotating pin 824 and a rotating sleeve 825. The clamping block 821 is installed on the side of the mounting assembly 81 as the core part of the clamping device, which can firmly clamp the cable. The clamping surface 822 is arranged on the side of the clamping block 821 and designed as a concave arc surface, which increases the contact area with the object and ensures more stable and reliable clamping. The anti-slip stripes 823 are arranged on the clamping surface 822, which are arranged in a herringbone shape and distributed in a rectangular array, increasing the friction and preventing the object from slipping during clamping. The rotating pin 824 is located above the clamping block 821 and is responsible for transmitting the rotating force, which can flexibly adjust the position of the clamping block 821 through rotation to adapt to objects of different shapes and sizes. The rotating sleeve 825 is installed on the side of the clamping block 821 and cooperates with the rotating pin 824, further optimizing the flexibility of the clamping block 821, making the entire clamping operation more precise and efficient, and ensuring the safety and stability of the clamped object.

[0048] As shown in Figure 7, the rotating disc 83 is composed of a rotating plate 831, a connecting block 832, a gear disc 833 and a matching hole 834, with a compact overall structure and clear functions. The rotating plate 831 is fixedly installed on the side of the mounting assembly 81 as the basic component of the rotating disc 83, supporting the rotation function of the entire structure. The connecting block 832 is installed on the side of the rotating plate 831 and plays a connecting and transmitting role, stably connecting the rotating plate 831 and the gear disc 833 together to ensure effective power transmission. The gear disc 833 is installed on the side of the connecting block 832 and is the key component in the entire rotating mechanism, achieving the rotating function through the meshing of the gears. The matching holes 834 are evenly distributed in a ring array on the surface of the gear disc 833, providing an interface for cooperation with other mechanical components, so that the entire rotating disc 83 can accurately control the rotating angle and position, thereby ensuring the efficiency and reliability of the device operation.

[0049] As shown in Figures 8-9, the fixing mechanism 9 is composed of four parts: rotating tooth disc 91, limiting sliding groove 92, fixing disc 93 and fixing assembly 94, with precise functional design and stable structure. Rotating tooth disc 91 is installed on the side of power assembly 7, which is an important part of mechanical rotation. Its surface is equipped with limiting sliding groove 92, which ensures the precise control of the rotation process. Limiting sliding groove 92 is designed as a circular arc to meet the rotation requirements of rotating tooth disc 91 and provide a stable movement trajectory to prevent the equipment from deviating during operation. Fixing disc 93 is installed on the side of the bottom, providing basic support and fixed position for the entire fixing assembly 94. Fixing assembly 94 is installed inside the fixing disc 93, ensuring the close combination and stable operation of each component. Through this design, fixing assembly 94 can effectively lock and adjust the position of mechanical components, making the entire system maintain high stability and reliability during operation, ensuring the normal operation and long-term use of the equipment.

[0050] As shown in Figure 10, the fixing disc 93 is composed of three parts: mounting grommet 931, partition block 932 and positioning sliding groove 933, with precise design and clear function. Mounting grommet 931 is firmly installed on the side of base 5, providing stable support and foundation for the entire fixing disc 93. Partition block 932 is set on the side of mounting grommet 931, which mainly forms an empty slot area to ensure the accurate installation and functional distribution of fixing assembly 94. The two side surfaces of partition block 932 are equipped with positioning sliding groove 933 at the central axis position, which can accurately cooperate with other mechanical components to ensure the precise positioning and stability of the components. Through this structural design, fixing disc 93 can effectively adjust and lock the position.

[0051] As shown in Figure 11, the fixing assembly 94 is composed of a fixing slider 941, a sliding pin 942, a positioning block 943, a contact surface 944, and a fixing head 945, which are designed to provide precise fixing and adjustment functions. The fixing slider 941 is installed in the middle of the fixing disc 93 and serves as the core component of the fixing assembly 94, responsible for bearing and stabilizing other accessories. The sliding pin 942 is installed on one end of the fixing slider 941 to provide sliding support, allowing the fixing slider 941 to move and adjust when needed. The positioning block 943 is installed on the side of the fixing slider 941 to help it maintain an accurate position on the fixing disc 93, ensuring that it does not shift during operation. The contact surface 944 is located on the opposite side of the fixing slider 941 from the sliding pin 942 and is designed to contact the object to be fixed, ensuring stable clamping. The fixing head 945 is located in the middle of the contact surface 944 and is a crucial part of the entire fixing assembly 94. The fixing head 945 is made of sharp, hard material and can generate high fixing force on the contact surface 944, ensuring that the object is firmly clamped and fixed. This design allows the fixing assembly 94 to provide reliable support and precise fixing functions in various mechanical operations.

[0052] A method for testing a cable of offshore engineering equipment, the method being used in conjunction with the offshore engineering equipment cable testing device described above, the steps of the method being as follows:

[0053] S1: Cut a sample (50-60 cm) from the cable to be tested, ensuring that the cable's appearance is free of any pre-existing physical damage or defects;

[0054] S2: Use the clamping mechanism 8 and the fixing mechanism 9 to securely fix both ends of the cable to the test platform, start the drive motor 6 to clamp the cable, ensuring that the cable does not move during testing, and keep the cable in a slightly tensioned state after being fixed to simulate the tension state in actual use;

[0055] S3: Set the friction frequency (such as the number of reciprocations per minute) and friction stroke (the distance the wear tool moves along the cable surface) of the testing tool 3, and use a force sensor to ensure that the force of each friction remains constant, set the number of frictions or test time (such as 100 reciprocating frictions or 10 minutes of continuous testing);

[0056] S4: Start the testing tool 3 and begin scraping and rubbing the cable surface. During testing, keep an eye on the contact between the testing tool 3 and the cable to ensure even and unbiased contact;

[0057] S5: After the test is completed, stop the test tool 3, and remove the cable sample. Check the abrasion of the cable surface using a microscope or other detection instrument. Record the degree of scratching or abrasion (such as cracks, skin damage, etc.). Measure the change in the outer diameter of the cable and analyze the effect of abrasion on the outer diameter.

[0058] In the working process of the present application, the staff cuts a 50-60cm long sample from the cable to be tested, ensuring that the appearance of the cable is not damaged or defective in advance. The clamping mechanism 8 and the fixing mechanism 9 are used to firmly fix the two ends of the cable on the test platform. The driving motor 6 is started to clamp the cable, ensuring that the cable does not move during the test,

[0059] The driving motor 6 drives the power shaft 71 to rotate, and the power roller 72 rotates. The power teeth 74 arranged on the power roller 72 drive the clamping mechanism 8 and the fixing mechanism 9 to clamp and fix the cable placed in the middle.

[0060] Part of the clamping mechanism 8: the rotating disc 83 rotates to drive the clamping assembly 82 to rotate under the limiting of the mounting assembly 81, so that the clamping surface 822 faces the cable and applies a normal pressure to the cable, thereby forming a static friction force between the cable and the anti-slip pattern to resist the rotating force and sliding force generated during the test of the test tool 3 on the cable; the limiting block 814 helps the rotating block to maintain its position during rotation;

[0061] Part of the fixing mechanism 9: the rotating tooth disc 91 rotates. The fixing assembly 94 is limited by the partition block 932. Because the sliding pin 942 arranged on the fixing assembly 94 is arranged inside the limiting sliding groove 92, when the rotating tooth disc 91 rotates, the fixing sliding block 941 slides to the middle of the rotating tooth disc 91. In this process, the positioning block 943 slides in the positioning sliding groove 933 to provide stability. Multiple fixing assemblies 94 approach the cable, and the fixing head 945 arranged on the fixing assembly 94 is vertically inserted into the inside of the cable, thereby further improving the torsional resistance of the cable during the test, ensuring the accuracy and success rate of the test;

[0062] Keep the cable in a slightly tensioned state after fixing to simulate the tension state in actual use. Set the friction frequency (such as the number of reciprocations per minute) and friction stroke of the test tool 3. Use a force sensor to ensure that the force of each friction remains constant. Set the number of frictions or the test time. Start the test tool 3 to begin scratching and rubbing the surface of the cable. During the test, keep an eye on it to ensure that the contact between the test tool 3 and the cable is uniform and unbiased. After the test is completed, stop the test tool 3, and remove the cable sample. Check the abrasion of the cable surface using a microscope or other detection instrument. Record the degree of scratching or abrasion (such as cracks, skin damage, etc.). Measure the change in the outer diameter of the cable and analyze the effect of abrasion on the outer diameter.

[0063] The disclosed features are not limited to the combinations disclosed herein but can be combined with other features in order to achieve the objectives of the present disclosure. Various modifications will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the disclosure. The description is not intended to limit the disclosure but to describe it adequately enough to enable those skilled in the art to make and use the disclosure.

Claims

1. Offshore engineering equipment cable testing device, comprising a support (1), a testing machine (2), a testing tool (3), a cushion table (4), a base (5) and a drive motor (6); the support (1) is arranged on the ground, the testing machine (2) is installed above the support (1), the testing tool (3) is installed on the side of the testing machine (2), the cushion table (4) is installed above the testing machine (2), the base (5) is installed on both sides of the cushion table (4), and the drive motor (6) is installed above the base (5); characterized in that, Also include power assembly (7), clamping mechanism (8) and fixed mechanism (9), the power assembly (7) is installed on the output end of the drive motor (6), the clamping mechanism (8) is installed on the inner side of the base (5), the fixed mechanism (9) is installed on the other inner side of the base (5); power assembly (7) drives gear disc (833) and rotating tooth disc (91) to rotate in the same direction, clamping assembly (82) and fixed assembly (94) extrude fixed cable, the clamping mechanism (8) and the fixed mechanism (9) realize double locking to the both ends of the cable, and then the performance of the cable is tested through the test tool (3).

2. A marine engineering equipment cable testing apparatus according to claim 1, characterised in that: The power assembly (7) includes a power shaft (71), a power roller (72), a mounting groove (73) and a power tooth (74); the power shaft (71) is installed on one end of the drive motor (6), the power roller (72) is installed on one end of the power shaft (71), the mounting groove (73) is provided with two, which is opened on the side surface of the power roller (72), and the mounting groove (73) is arranged in an annular shape, and the power tooth (74) is arranged in the mounting groove (73).

3. The offshore engineering equipment cable testing apparatus of claim 1, wherein: The clamping mechanism (8) includes a mounting assembly (81), a clamping assembly (82) and a rotating disc (83); the mounting assembly (81) is installed on the upper surface of the base (5), the clamping assembly (82) is provided with 3-5, the clamping assembly (82) is installed on the side surface of the mounting assembly (81), and the rotating disc (83) is installed on the side surface of the clamping assembly (82).

4. A marine engineering equipment cable testing apparatus according to claim 3, characterised in that: The mounting assembly (81) includes a mounting plate (811), a mounting hole (812), a mounting block (813), a limiting block (814) and a fixed pin (815); the mounting plate (811) is installed on the upper surface of the base (5), the mounting hole (812) is opened on the side of the mounting plate (811), the number of the mounting block (813) is consistent with that of the clamping assembly (82), the limiting block (814) is arranged on the inner side surface of the mounting block (813), and the fixed pin (815) is arranged on the upper surface of the mounting block (813).

5. The offshore engineering equipment cable testing apparatus of claim 3, wherein: The clamping assembly (82) includes a clamping block (821), a clamping surface (822), an anti-skid stripe (823), a rotating pin (824) and a rotating sleeve (825); the clamping block (821) is installed on the side surface of the mounting assembly (81), the clamping surface (822) is arranged as a concave arc surface part on the side surface of the clamping block (821), the anti-skid stripe (823) is arranged in a rectangular array on the clamping surface (822), the anti-skid stripe (823) is arranged in a herringbone shape, the rotating pin (824) is installed on the upper surface of the clamping block (821), and the rotating sleeve (825) is installed on the side surface of the clamping block (821).

6. The offshore engineering equipment cable testing apparatus of claim 3, wherein: The rotating disc (83) comprises a rotating plate (831), a connecting block (832), a gear disc (833) and a matching hole (834); the rotating plate (831) is installed on the side of the mounting assembly (81), the connecting block (832) is installed on the side of the rotating plate (831), the gear disc (833) is installed on the side of the connecting block (832), and the matching hole (834) is annularly arranged on the upper surface of the gear disc (833).

7. The offshore engineering equipment cable testing apparatus of claim 1, wherein: The fixing assembly (94) comprises a rotating gear disc (91), a limiting sliding groove (92), a fixing disc (93) and a fixing assembly (94); the rotating gear disc (91) is installed on the side of the power assembly (7), the limiting sliding groove (92) is arranged on the surface of the rotating gear disc (91), the limiting sliding groove (92) is in the shape of a circular arc, the fixing disc (93) is installed on the side of the bottom, and the fixing assembly (94) is installed in the fixing disc (93).

8. A marine engineering equipment cable testing apparatus according to claim 7, characterised in that: The fixing disc (93) comprises a mounting grommet (931), a partition block (932) and a positioning sliding groove (933); the mounting grommet (931) is installed on the side of the base (5), the partition block (932) is arranged on the side of the mounting grommet (931), and the positioning sliding groove (933) is arranged at the positions of the central axes of the two sides of the partition block (932).

9. The offshore engineering equipment cable testing apparatus of claim 7, wherein: The fixing assembly (94) comprises a fixing sliding block (941), a sliding pin (942), a positioning block (943), a contact surface (944) and a fixing head (945); the fixing sliding block (941) is installed in the middle of the fixing disc (93), the sliding pin (942) is installed on one end of the fixing sliding block (941), the positioning block (943) is installed on the side of the fixing sliding block (941), the contact surface (944) is arranged on the side of the fixing sliding block (941) away from the sliding pin (942), the fixing head (945) is arranged in the middle of the contact surface (944), and the fixing head (945) is in the shape of a sharp hard material.

10. A method for testing a marine engineering equipment cable, the method being used in cooperation with the marine engineering equipment cable testing device according to any one of claims 1-9, and the steps of the method being as follows: S1: cutting a sample (50-60 cm) from the cable to be tested, ensuring that the appearance of the cable is free of any previous physical damage or defects; S2: using the clamping mechanism (8) and the fixing mechanism (9) to firmly fix the two ends of the cable on the test platform, starting the drive motor (6) to clamp the cable, ensuring that the cable does not move during the test, and keeping the cable in a slightly tensioned state after being fixed to simulate the tension state in actual use; S3: setting the friction frequency (such as the number of reciprocations per minute) and the friction stroke (the distance that the wear tool moves along the surface of the cable) of the test tool (3), and using a force sensor to ensure that the force of each friction remains constant, setting the number of frictions or the test time (such as 100 reciprocating frictions or a continuous test of 10 minutes); S4: starting the test tool (3) to start scraping and rubbing the surface of the cable, and observing during the test, Ensure that the test tool (3) is in uniform contact with the cable; S5: After the test, stop the test tool (3), and remove the cable sample. Use a microscope or other detection instrument to check the wear and tear on the surface of the cable, record the degree of scratching or wear (such as cracks, skin damage, etc.), measure the change in the outer diameter of the cable, and analyze the impact of wear and tear on the outer diameter.

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