A power test device for power engineering

Abstract

The utility model discloses a power test equipment for electric power engineering relates to electric power engineering technical field, including frame, both sides of the inside of frame are fixedly installed with horizontal plate, the inside between horizontal plate front end fixedly installed with linear module, two mobile ends of linear module are fixedly installed with clamping module. The utility model adopts above -mentioned structure, through setting linear module, clamping module, swing module and various detection elements and main control unit, can first accurate adjustment clamping module spacing and steady clamping different specification cable, ensure that linear tensile test stress is even, data accurate, can also simulate cable dynamic swing scene, and the synergy gathers the tension and pressure data, avoids the equipment to scratch cable, and then reaches the effect that the adaptability is strong, the test scene is comprehensive, and the data is reliable, solves the problem that the prior art adapts, only can linear stretch, data single and is easy to be interfered with equipment.

Description

Technical Field

[0001] This utility model belongs to the field of power engineering technology, and specifically relates to a power testing device for power engineering. Background Technology

[0002] Currently, communication cables serve as the core carrier for transmitting telephone, telegram, fax documents, television broadcasts, and various data signals. Their structure typically consists of one or more stranded, insulated conductors. Compared to traditional overhead power lines, communication cables offer significant advantages such as large communication capacity, high transmission stability, strong signal security, and resistance to natural conditions (such as wind, rain, and lightning) and external electromagnetic interference. They have been widely used in communication network construction, industrial data transmission, public information services, and many other fields, becoming an indispensable key component of modern information transmission systems.

[0003] With the rapid development of the communications industry, the application scenarios of communication cables are becoming increasingly complex. They not only need to maintain stable performance in fixed installation environments, but also frequently face external forces in dynamic outdoor scenarios. For example, along urban rail transit lines, near high-voltage transmission lines, or in harsh weather areas, communication cables may sway due to airflow disturbances, vibrations of surrounding equipment, or sudden external pulling forces. The stress conditions under this swaying state differ significantly from those under static linear tension, directly affecting the actual service life of the cable and the security of signal transmission. Therefore, comprehensive and accurate testing of the tensile performance of communication cables under different stress scenarios has become an important prerequisite for ensuring the reliable operation of communication networks.

[0004] Currently, there are various testing devices for the tensile strength of communication cables in the industry. For example, Chinese patent with announcement number "CN214584490U" discloses a cable tensile strength testing device. This device achieves automated operation of cable tensile testing through the cooperation of a base, cable fixing device, tensioning device, scale and tension gauge. Its automatic clamping device can replace manual fixing of the sample, which improves the testing efficiency to a certain extent and solves the problems of cumbersome and single function of traditional manual fixing method.

[0005] However, existing tensile testing equipment still has significant limitations in practical applications: its core testing method only performs linear tensile tests on communication cables, that is, by fixing one end of the cable and applying a unidirectional linear tensile force to the other end, it detects the tensile strength of the cable under static linear force. However, this testing mode cannot simulate the dynamic swinging scenarios that communication cables may encounter in actual use. When the cable swings due to external interference, the stress distribution of its internal conductor stranding structure and the stress changes in the insulation layer are different from the linear tensile state, potentially leading to localized stress concentration, conductor misalignment, and other problems, resulting in a deviation between the actual tensile performance and the linear tensile test results. This mismatch between the testing scenario and the actual application scenario makes it difficult for existing equipment to fully reflect the true tensile performance of communication cables, potentially leading to insufficient accuracy in test results and failing to provide sufficient and reliable data support for cable selection, laying, and maintenance. Therefore, it is urgent to improve existing tensile testing equipment for communication cables to achieve effective testing of cable tensile performance under dynamic swinging scenarios. Utility Model Content

[0006] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a power testing device for power engineering, so as to solve the problems raised in the background art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A power testing device for power engineering includes a frame, with horizontal plates fixedly installed on both sides of the frame, a linear module fixedly installed at the front end between the inner sides of the horizontal plates, clamping modules fixedly installed at both moving ends of the linear module, a swing module fixedly installed in the middle of the bottom of the frame, and a main controller provided on one side of the front of the frame.

[0009] The linear module includes a front guide rail, which is fixedly installed between the inner front ends of two horizontal plates. A drive motor is fixedly installed at one end of the front guide rail. A lead screw is fixedly installed through the output end of the drive motor and is rotatably connected to the inside of the front guide rail. The two ends of the lead screw have opposite thread directions. Both ends of the lead screw are threadedly connected to sliders. The sliders are slidably connected to the two ends inside the front guide rail. The clamping module is fixedly connected to the back of the sliders.

[0010] As a preferred technical solution, the linear module further includes a rear guide rail, which is fixedly installed at the rear end between the inner sides of the horizontal plate. The two ends of the rear guide rail are slidably connected to support blocks, and the front of the support blocks is fixedly connected to the rear side of the clamping module.

[0011] As a preferred technical solution, the clamping module includes a fixing plate, which is fixedly installed between the inner sides of the support block and the slider. A mounting seat is fixedly installed in the middle of the inner side of the fixing plate, and a hinge seat is fixedly installed in the inner side of the mounting seat. A clamping assembly is hinged to the inner side of the hinge seat.

[0012] As a preferred technical solution, the clamping assembly includes a hinge block, which is rotatably connected to the inner side of the hinge seat. A tension sensor is fixedly installed on the outer side of the hinge block, and a base plate is fixedly installed on the outer side of the tension sensor. Side plates are fixedly installed at both ends of the outer side of the base plate, and a first electric push rod is fixedly installed on the outer side of the side plate. A cable end clamping head is fixedly installed at the output end of the first electric push rod.

[0013] As a preferred technical solution, the inner side of the cable end clamping head is provided with a clamping groove, and the overall shape of the clamping groove is V-shaped.

[0014] As a preferred technical solution, the inner walls of the clamping groove of the cable end clamping head are provided with anti-slip grooves arranged linearly at equal intervals, and support legs are fixedly installed at the four corners of the bottom of the frame, and a support base frame is fixedly connected to the bottom of the support legs.

[0015] As a preferred technical solution, the swing module includes a mounting arm, which is fixedly installed at the bottom center of the frame. A second electric push rod is fixedly installed at the bottom center of the mounting arm. A pressure sensor is fixedly connected to the top of the second electric push rod. A swing ring is fixedly installed on the top of the pressure sensor. The test cable held by the inner side of the clamping module is inserted through the inner side of the swing ring. The outer corners of the swing ring are all set to be arc-shaped.

[0016] In summary, the present invention has the following main advantages:

[0017] Firstly, during the application of this technical solution, by setting up a linear module, a clamping module, and a main controller, the main controller can drive the linear module to adjust the spacing of the clamping module. With the help of position sensors, the movement accuracy can be precisely controlled. Then, the hinge structure of the clamping module is used to adapt to cables of different specifications. The V-shaped clamping groove and the anti-slip groove provide a stable clamping. Combined with the displacement sensor and tension sensor of the first electric push rod, the clamping force is controlled, thereby achieving the effect of precise adjustment and stable clamping. This solves the problems of poor equipment adaptability and easy cable slippage that lead to test interruption or inaccurate data in the existing technology. At the same time, the reverse thread design of the linear module's lead screw and its cooperation with the front and rear guide rails ensure that the cable is subjected to uniform force during tensioning. Combined with the real-time monitoring of the tension sensor, the accuracy of the linear tensile test data is improved, making up for the shortcomings of uneven tensile force and single data acquisition in the existing equipment.

[0018] Secondly, during the application of this technical solution, by setting up a swing module, pressure sensor, and various detection elements, the swing module can be started by the main controller after the cable clamping is completed. The displacement sensor of the second electric push rod is used to precisely control the height and swing parameters of the swing ring, simulating the dynamic swing scenario of the cable in actual use. At the same time, the pressure sensor and tension sensor work together to collect force data, thereby achieving the effect of comprehensively simulating dynamic scenarios and collecting data from multiple dimensions. This solves the problem that the existing technology can only perform linear tensile tests and cannot reflect the dynamic stress performance of the cable. In addition, the rounded corner design of the swing ring avoids scratching the cable, ensuring that the test results only reflect the performance of the cable itself, eliminating equipment interference, and further improving the reliability of the test data, providing a more realistic reference for the subsequent application of the cable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0021] Figure 3 This is a side view structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the clamping module structure of this utility model.

[0023] Reference numerals: 1. Frame; 2. Horizontal plate; 3. Linear module; 31. Front guide rail; 32. Drive motor; 33. Lead screw; 34. Slider; 35. Rear guide rail; 36. Support block; 4. Clamping module; 41. Fixing plate; 42. Mounting base; 43. Hinge base; 44. Clamping assembly; 441. Hinge block; 442. Tension sensor; 443. Base plate; 444. Side plate; 445. First electric push rod; 446. Cable end clamping head; 447. Clamping groove; 448. Anti-slip strip groove; 5. Swing module; 51. Mounting arm; 52. Second electric push rod; 53. Pressure sensor; 54. Swing ring; 6. Support leg; 7. Support base frame. Detailed Implementation

[0024] Example

[0025] refer to Figures 1 to 4 This embodiment of a power testing device for power engineering includes a frame 1, with horizontal plates 2 fixedly installed on both sides of the inner side of the frame 1, a linear module 3 fixedly installed at the front end between the inner sides of the horizontal plates 2, clamping modules 4 fixedly installed at both moving ends of the linear module 3, a swing module 5 fixedly installed in the middle of the bottom of the frame 1, and a main controller provided on one side of the front of the frame 1.

[0026] The linear module 3 includes a front guide rail 31, which is fixedly installed between the front ends of two horizontal plates 2. A drive motor 32 is fixedly installed at one end of the front guide rail 31. A lead screw 33 is fixedly installed through the output end of the drive motor 32 and is rotatably connected to the inside of the front guide rail 31. The two ends of the lead screw 33 have opposite threads. Both ends of the lead screw 33 are threadedly connected to sliders 34, which are slidably connected to the two ends inside the front guide rail 31. The clamping module 4 is fixedly connected to the back of the sliders 34. During the application of this device, the main controller on the front side of the frame 1 first sends a command to start the drive motor 32 of the linear module 3. After the drive motor 32 runs, it drives the lead screw 33 connected to the output end to rotate inside the front guide rail 31. Since the two ends of the lead screw 33 have opposite threads, when rotating, it will drive the sliders 34 connected to the two ends to move in the opposite linear direction along the inside of the front guide rail 31. The sliders 34 then drive the clamping module 4 fixed to the back. With the clamping modules 4 moving synchronously, the operator can adjust the distance between the two clamping modules 4 by controlling the start, stop, and direction of the drive motor 32 through the main controller according to the length of the cable to be tested, until the spacing is suitable for the cable length. This facilitates the subsequent placement of the two ends of the cable on the two clamping modules 4. During this process, the front guide rail 31 of the linear module 3 provides a stable sliding guide for the slider 34, ensuring that the slider 34 does not deviate when moving the clamping modules 4, thus ensuring the accuracy of the clamping module 4 position adjustment and avoiding problems such as difficulty in subsequent cable installation or inaccurate test data due to the position deviation of the clamping modules 4. At the same time, the reverse thread design at both ends of the lead screw 33 enables the synchronous reverse movement of the two clamping modules 4, eliminating the need to adjust each individual clamping module 4 separately. This greatly improves the efficiency of clamping module 4 spacing adjustment, reduces manual operation steps, and makes the equipment more convenient and efficient in the early preparation stage, laying the foundation for the smooth conduct of subsequent cable testing.

[0027] refer to Figures 1-3The linear module 3 also includes a rear guide rail 35, which is fixedly installed at the rear end between the inner sides of the horizontal plate 2. Support blocks 36 are slidably connected to both ends of the rear guide rail 35. The front of the support blocks 36 is fixedly connected to the rear side of the clamping module 4. The clamping module 4 includes a fixing plate 41, which is fixedly installed between the inner sides of the support blocks 36 and the slider 34. A mounting base 42 is fixedly installed in the middle of the inner side of the fixing plate 41, and a hinge is fixedly installed in the inner side of the mounting base 42. The inner side of the hinged seat 43 is hinged with a clamping assembly 44. During the application of this device, when the linear module 3 is running and adjusting the position of the clamping module 4, the rear guide rail 35 will cooperate with the front guide rail 31 to play a role. When the drive motor 32 drives the lead screw 33 to rotate and causes the slider 34 in the front guide rail 31 to slide, the support blocks 36 at both ends inside the rear guide rail 35 will slide synchronously with the clamping module 4, providing additional support and guidance for the clamping module 4, and preventing the clamping module 4 from relying solely on... When the slider 34 is supported, it may tilt or wobble due to uneven force. To ensure that the clamping module 4 maintains a stable posture during movement, the accuracy of position adjustment is improved, laying the foundation for accurate clamping of the cable in the future. When preparing to clamp the cable to be tested, the fixing plate 41 of the clamping module 4 is kept stable by the connection between the support block 36 and the slider 34. The mounting seat 42 in the middle of its inner side provides a stable mounting base for the hinge seat 43. The hinged cooperation between the hinge seat 43 and the clamping component 44 allows the clamping component 44 to flexibly adjust its own angle according to the specifications and laying angle of the cable to be tested. The clamping component 44 can be accurately aligned with the cable end without repeated manual adjustment of the cable position. This not only reduces the operation difficulty for the staff, but also adapts to cables with different postures, expands the adaptability of the equipment to different test scenarios, and avoids unstable clamping due to mismatch between the cable posture and the angle of the clamping component 44, which would affect the normal conduct of subsequent tests.

[0028] refer to Figure 4The clamping assembly 44 includes a hinge block 441, which is rotatably connected to the inner side of the hinge seat 43. A tension sensor 442 is fixedly mounted on the outer side of the hinge block 441, and a base plate 443 is fixedly mounted on the outer side of the tension sensor 442. Side plates 444 are fixedly mounted on both ends of the outer side of the base plate 443. A first electric push rod 445 is fixedly mounted on the outer side of the side plate 444. A cable end clamping head 446 is fixedly mounted on the output end of the first electric push rod 445. A clamping groove 447 is formed on the inner side of the cable end clamping head 446, and the overall shape of the clamping groove 447 is V-shaped. The cable end clamping head 446 is configured such that the two inner walls of the clamping groove 447 are linearly arranged with equal spacing and anti-slip grooves 448. Support legs 6 are fixedly installed at the four corners of the bottom of the frame 1, and a support base frame 7 is fixedly connected to the bottom of the support legs 6. During application, when clamping the cable to be tested, the angle of the clamping assembly 44 is first adjusted by rotating the hinge block 441 inside the hinge seat 43, so that the cable end can be accurately aligned with the cable end clamping head 446. Then, the first electric push rod 445 is activated, and the output end of the first electric push rod 445 pushes the cable end... The clamping head 446 moves towards the cable until the cable end is clamped in the clamping groove 447. The V-shaped clamping groove 447 is designed to accommodate cables of different diameters, enabling stable clamping of cables of various specifications without frequent replacement of clamping components. Simultaneously, the anti-slip grooves 448, evenly spaced and linearly arranged on the inner side of the clamping groove 447, increase the friction with the cable surface, effectively preventing the cable from slipping out of the clamping groove 447 due to force or vibration during the test, thus avoiding test interruption or data deviation. During clamping and subsequent testing, the tension sensor 442 on the outside of the hinge block 441 monitors the tension in real time. The device measures the tension on the cable and provides timely feedback of the force data so that staff can monitor the test status. The base plate 443 provides a stable connection foundation for the side plate 444 and the tension sensor 442, ensuring that the force of the first electric push rod 445 can be stably transmitted to the cable end clamping head 446 during operation. In addition, the support legs 6 at the four corners of the bottom of the frame 1 and the support base frame 7 together provide stable support for the entire device, preventing the device from shifting or tipping over due to vibration or force during the test, ensuring test safety and the accuracy of data acquisition, and allowing the equipment to maintain a stable operating state in different working environments.

[0029] refer to Figures 1-3The swing module 5 includes a mounting arm 51, which is fixedly mounted at the bottom center of the frame 1. A second electric push rod 52 is fixedly mounted at the bottom center of the mounting arm 51. A pressure sensor 53 is fixedly connected to the top of the second electric push rod 52, and a swing ring 54 is fixedly mounted on the top of the pressure sensor 53. The cable to be tested, held inside the clamping module 4, passes through the inner side of the swing ring 54. The outer corners of the swing ring 54 are all rounded. During the application of this device, when it is necessary to simulate the dynamic swinging scenario of the cable in actual use, the mounting arm 51 will first provide stable mounting support for the second electric push rod 52 to ensure that the second electric push rod 52 will not shake or deviate during operation. Then, the second electric push rod 52 will be started, and the second electric push rod 52 will drive the pressure sensor 53 at the top and the swing ring 54 to rise synchronously until the inner side of the swing ring 54 contacts the surface of the cable to be tested. Inside the swing ring 54, the extension and retraction frequency and amplitude of the second electric push rod 52 can be controlled to make the swing ring 54 drive the cable to swing in different directions. This accurately reproduces the swing state of the cable caused by airflow disturbance, equipment vibration and other factors in the actual environment, filling the gap of only being able to perform linear tensile tests, and making the test scenario more in line with actual use. During the swing, the pressure sensor 53 will detect the pressure data applied to the cable by the swing ring 54 in real time, which can help the staff to grasp the stress of the cable in the swing state in real time, and provide accurate data support for analyzing the dynamic tensile performance of the cable. At the same time, the outer corners of the swing ring 54 are set to be arc-shaped, which can avoid scratching the cable surface during the swing, prevent the cable surface damage from affecting the accuracy of the test results, ensure that the test data only reflects the tensile performance of the cable itself, eliminate the interference of equipment factors on the test results, and make the test conclusions more valuable.

[0030] Operating Principle and Advantages: During the application of this device, the main controller on one side of the front of its frame 1 not only has the function of overall control of the operation of various components, but is also equipped with a display screen and control keyboard. The operator can input commands through the control keyboard and view the equipment's operating status and various data in real time through the display screen. The operation is convenient and intuitive. The controller is a conventional PLC controller with built-in programming function. This technology uses the existing PLC controller, which will not be described in detail here. During the initial position adjustment stage, the operator issues a command through the main controller to start the linear module 3. The front guide rail 31 of the linear module 3 is fixedly installed between the front ends of the two horizontal plates 2. After receiving the command, the drive motor 32 at one end starts to run. The output end of the drive motor 32 drives the lead screw 33 inside the front guide rail 31 to rotate. The opposite screw threads cause the slider 34, which is connected by threads at both ends, to slide away from each other along the interior of the front guide rail 31. At the same time, the support blocks 36 at both ends of the rear guide rail 35 at the rear end of the inner side of the horizontal plate 2 will slide synchronously with the slider 34. The support blocks 36 and the slider 34 together drive the clamping module 4 fixed inside to move until the distance between the two clamping modules 4 is adapted to the length of the cable to be tested, leaving a suitable space for subsequent cable installation. A position sensor for detecting the sliding stroke of the slider 34 is also installed at the linear module 3. This position sensor can transmit the position information of the slider 34 to the main controller in real time. The operator can accurately grasp the movement of the clamping module 4 through the display screen to ensure the adjustment accuracy. The cooperation between the front guide rail 31 and the rear guide rail 35 further ensures the stability of the clamping module 4 during the movement process and avoids deviation that may affect subsequent clamping operations.

[0031] Next, the cable to be tested is clamped and fixed. The operator first aligns the two ends of the cable to be tested with the cable end clamping heads 446 of the two clamping modules 4 respectively. The fixing plate 41 in the clamping module 4 is fixed by the support block 36 and the slider 34. This connection method provides a stable installation base for the mounting base 42, so that the mounting base 42 can firmly support the subsequent components. The hinge seat 43 on the inner side of the mounting base 42 is rotatably connected to the hinge block 441 of the clamping assembly 44. Through this design, the angle of the clamping assembly 44 can be flexibly adjusted, thereby ensuring that the cable end can be accurately aligned with the cable end clamping head 446. Even when facing cables of different specifications and different laying postures, it can be effectively adapted, greatly expanding the applicability of the equipment.

[0032] After alignment, the operator activates the first electric push rod 445 on the outer side of the side plate 444 via the main controller. Upon receiving the command, the output end of the first electric push rod 445 pushes the cable end clamping head 446 towards the cable until the cable end is tightly clamped in the V-shaped clamping groove 447. The V-shaped clamping groove 447 is designed to accommodate the clamping needs of cables of different diameters. The anti-slip grooves 448 arranged linearly at equal intervals on the inner side of the clamping groove 447 significantly increase the friction with the cable surface, effectively preventing the cable from slipping during the test and avoiding test interruptions or inaccurate data due to cable detachment. The first electric push rod 445 is equipped with a displacement sensor to detect its stroke. This displacement sensor can transmit the extension and retraction status of the electric push rod to the main controller in real time. The operator can accurately control the clamping force through the display screen to prevent excessive force from damaging the cable or insufficient force from causing unstable clamping. The base plate 443 plays a connecting role in the clamping assembly 44, providing a stable mounting carrier for the side plate 444 and the tension sensor 442. The tension sensor 442 will monitor the tension value applied to the cable by the clamping assembly 44 in real time and transmit the data to the main controller, so that the operator can keep track of the clamping status in real time through the display screen.

[0033] After the cable clamping is completed, if a linear tensile test is required, the operator can control the drive motor 32 of the linear module 3 to rotate in the reverse direction through the main controller. The drive motor 32 drives the lead screw 33 to rotate in the reverse direction, causing the two sliders 34 in the front guide rail 31 to slide towards each other along the front guide rail 31. The support block 36 in the rear guide rail 35 moves synchronously, thereby driving the two clamping modules 4 to move closer to the center, applying a linear tensile force to the cable under test. During this process, the position sensor at the linear module 3 will continuously monitor the sliding stroke of the slider 34 and feed the position information back to the main controller in real time to ensure the accuracy and controllability of the tensile process. At the same time, the tension sensor 442 will continuously transmit the detected tension data to the main controller. The operator can monitor the change of tension on the cable in real time through the display screen until the cable reaches the set tensile condition or experiences tensile failure, thus successfully completing the linear tensile test data acquisition. The reverse thread design at both ends of the lead screw 33 realizes the synchronous reverse movement of the two clamping modules 4, effectively improving the uniformity of force during the cable tensile process, reducing test errors caused by uneven force, and further ensuring the accuracy of the linear tensile test data.

[0034] To simulate the dynamic swinging scenario of the cable in actual use, after the cable clamping and fixing is completed, the operator can start the swing module 5 through the main controller. The installation arm 51 of the swing module 5 is fixedly installed in the middle of the bottom of the frame 1, providing a stable fixed installation position for the second electric push rod 52 and ensuring the stability of the second electric push rod 52 during operation. The second electric push rod 52 is also equipped with a displacement sensor to detect its stroke. After the operator issues a command through the main controller, the second electric push rod 52 starts, and its top pushes the pressure sensor 53 and the swing ring 54 to move upward. The displacement sensor will transmit the extension and retraction of the second electric push rod 52 to the main controller in real time. The operator can accurately control the rising height of the swing ring 54 through the display screen until the inner side of the swing ring 54 contacts the surface of the cable to be tested. At this time, the cable to be tested is inserted into the inner side of the swing ring 54.

[0035] According to the test requirements, the staff adjusted the extension frequency and amplitude of the second electric push rod 52 through the main controller. The displacement sensor of the second electric push rod 52 provided real-time feedback on the adjustment to ensure that the swing parameters met the test requirements. Driven by the second electric push rod 52, the swing ring 54 caused the cable under test to swing in different directions, accurately simulating the swing state of the cable caused by airflow disturbance, equipment vibration and other factors in actual use. This effectively filled the gap that the existing equipment could only perform linear tensile tests. During the test, the pressure sensor 53 detected the pressure of the swing ring 54 on the cable in real time. The data is transmitted to the main controller and, together with the tensile data detected by the tensile sensor 442, records the force changes of the cable under swing. Compared with existing equipment that can only detect linear tensile force, this technical solution can more comprehensively reflect the tensile performance of the cable under dynamic stress, making the test results more consistent with actual application conditions and providing more reliable data support for cable selection, laying and maintenance. At the same time, the outer corners of the swing ring 54 are set to be rounded to avoid scratching the cable surface during swing, ensuring that the test results only reflect the tensile performance of the cable itself and eliminating the interference of equipment factors on the test results.

[0036] In this technical solution, the lead screw 33 is made of chromium-molybdenum alloy steel, which has excellent weather resistance and can be used for a long time in air or water. During installation, it is rotatably connected to the inside of the front guide rail 31, and both ends are threaded to the slider 34. The surface of the lead screw 33 is coated with polytetrafluoroethylene lubricating oil, which has good weather resistance and can maintain its lubrication effect in water and air for a long time. The drive motor 32, the first electric push rod 445, and the second electric push rod 52 are all stepper motors, model 28HS3401. The motors are equipped with encoders to realize flexible adjustment of rotation and stepless speed regulation. Each motor is equipped with a gearbox reducer, model PL20, to improve torque and regulate and reduce speed. The first electric push rod 445 and the second electric push rod 52 are model DTZ300. The working principle is that the motor drives the internal lead screw 33 to rotate, which drives the push rod to extend and retract to achieve linear motion. The main controller is a Siemens S7-200SMART CPU SR40 PLC, which is installed in the control box on one side of the front of frame 1. The controller is equipped with a 12864 LCD screen, which is connected to the PLC controller through an RS485 communication interface to realize data display and operation command transmission. In terms of circuit connection, the PLC controller is connected to a 220V AC power supply, which is converted to a 24V DC power supply by the internal power module to power itself and each sensor and driver. The tension sensor 442 (model YZC-526) and the pressure sensor 53 (model PT124G-111) are connected to the PLC controller through the analog input module (EM AI04) to convert the detected analog signals into digital signals and transmit them to the controller. The position sensor (model OPTEX CDD-11N), the displacement sensor (model KTC-100), and the encoder are connected to the PLC controller through the digital input module (EM DI08) to transmit position and speed signals. Each motor driver and electric push rod driver are connected to the PLC controller through the digital output module (EM DO08). The PLC controller controls the operation of the drivers by outputting PWM signals, thereby driving the motor 32 and the electric push rod to move, realizing precise control of the equipment's clamping, stretching, swinging and other functions.

[0037] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

Claims

1. A power test apparatus for power engineering, characterized by: The frame (1) includes a frame (1), on both sides of the frame (1) are fixedly installed with horizontal plates (2), a linear module (3) is fixedly installed at the front end between the inner sides of the horizontal plates (2), a clamping module (4) is fixedly installed at both moving ends of the linear module (3), a swing module (5) is fixedly installed at the bottom middle of the frame (1), and a main controller is provided on one side of the front of the frame (1). The linear module (3) includes a front guide rail (31), which is fixedly installed between the front ends of two horizontal plates (2). A drive motor (32) is fixedly installed at one end of the front guide rail (31). A lead screw (33) is fixedly installed through the front guide rail (31) at the output end of the drive motor (32). The lead screw (33) is rotatably connected to the inside of the front guide rail (31). The two ends of the lead screw (33) have opposite thread directions. Both ends of the lead screw (33) are threadedly connected to sliders (34). The sliders (34) are slidably connected to the two ends inside the front guide rail (31). The clamping module (4) is fixedly connected to the back of the sliders (34).

2. The power test device for power engineering according to claim 1, characterized in that: The linear module (3) also includes a rear guide rail (35), which is fixedly installed at the rear end between the inner sides of the horizontal plate (2). The two ends of the rear guide rail (35) are slidably connected to a support block (36), and the front of the support block (36) is fixedly connected to the rear side of the clamping module (4).

3. The power test device for power engineering according to claim 2, characterized in that: The clamping module (4) includes a fixing plate (41), which is fixedly installed between the inner sides of the support block (36) and the slider (34). A mounting base (42) is fixedly installed in the middle of the inner side of the fixing plate (41), and a hinge seat (43) is fixedly installed in the inner side of the mounting base (42). A clamping assembly (44) is hinged in the inner side of the hinge seat (43).

4. The power test device for power engineering according to claim 3, characterized in that: The clamping assembly (44) includes a hinge block (441), which is rotatably connected to the inner side of the hinge seat (43). A tension sensor (442) is fixedly installed on the outer side of the hinge block (441), and a base plate (443) is fixedly installed on the outer side of the tension sensor (442). Side plates (444) are fixedly installed at both ends of the outer side of the base plate (443). A first electric push rod (445) is fixedly installed on the outer side of the side plate (444), and a cable end clamping head (446) is fixedly installed at the output end of the first electric push rod (445).

5. The power test device for power engineering according to claim 4, characterized in that: The inner side of the cable end clamp (446) is provided with a clamping groove (447), and the overall shape of the clamping groove (447) is V-shaped.

6. The power test device for power engineering according to claim 5, characterized in that: The cable end clamp (446) has anti-slip grooves (448) with equal spacing on the two inner walls of the clamping groove (447). Support legs (6) are fixedly installed at the four corners of the bottom of the frame (1), and a support base frame (7) is fixedly connected to the bottom of the support legs (6).

7. The power test device for power engineering according to claim 1, characterized in that: The swing module (5) includes a mounting arm (51), which is fixedly installed at the bottom center of the frame (1). A second electric push rod (52) is fixedly installed at the bottom center of the mounting arm (51). A pressure sensor (53) is fixedly connected to the top of the second electric push rod (52). A swing ring (54) is fixedly installed on the top of the pressure sensor (53). The test cable held by the clamping module (4) is inserted into the inside of the swing ring (54). The outer corners of the swing ring (54) are all set to be arc-shaped.

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