Cable oscillation simulation test device and control method and control system thereof

Abstract

The invention discloses a cable oscillation simulation test device and a control method and a control system thereof, and belongs to the field of power system detection. The clamp is installed on the operation table and used for clamping a cable conductor, a telescopic rod connected with the rotating motor is arranged above the clamp, and a pendulum bob is installed below the telescopic rod. And the telescopic rod is detachably connected with the pendulum bob. The clamp is detachably installed on the operation table. Liquid spraying devices are arranged on the two sides of the operation table respectively. And one side of the rotating motor is electrically connected with the display. The mass of the operation table is large, so that the operation table does not shake in the simulation test process. The periphery of the device is provided with a baffle plate through which the cable can be located in a closed environment. The cable oscillation simulation test device and the control method and the control system thereof provided by the invention can achieve the effects of comprehensively simulating test conditions and having relatively high flexibility and engineering application value.

Description

Technical Field

[0001] The invention relates to power system detection, in particular to a cable oscillation simulation test device and a control method and a control system thereof. Background Art

[0002] During operation, cables are often affected by internal and external environmental factors, such as air acidity, load conditions, and other mechanical vibrations, which may cause cables to produce tiny oscillations, thus affecting their performance and reliability. As the demand for the use of cables in the power and communications industries continues to increase, it is particularly important to study the oscillation of cables under different operating conditions and the damage caused to the cables. Traditional testing methods are often limited to a single environment or fixed test conditions, and cannot fully evaluate the actual performance of cables under variable conditions. Therefore, there is a lack of effective test equipment to simulate the various oscillation conditions that cables may encounter in actual use, as well as the corresponding pressure and environmental factors. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a cable oscillation simulation test device and a control method and control system which can fully simulate test conditions, have high flexibility and engineering application value.

[0004] Technical solution: The cable oscillation simulation test device described in the present invention is characterized in that it includes an operating table and a clamp installed on the operating table for clamping the cable conductor, a telescopic rod connected to a rotating motor is provided above the clamp, and a pendulum is installed below the telescopic rod.

[0005] Preferably, the telescopic rod is detachably connected to the pendulum.

[0006] Preferably, the clamp is detachably mounted on the operating table, and is further preferably threaded, snap-fit ​​or hingedly connected.

[0007] Preferably, liquid spray devices are respectively provided on both sides of the operating table.

[0008] Preferably, one side of the rotating motor is electrically connected to the display.

[0009] Preferably, the mass of the operating table is large enough not to cause shaking during the simulation test.

[0010] Preferably, a baffle is provided on the periphery of the device so that the cables can be in a closed environment.

[0011] The control method of the cable oscillation simulation test device of the present invention comprises the following steps:

[0012] (1) Adjust the telescopic rod to the highest position;

[0013] (2) Install the pendulum on the telescopic rod;

[0014] (3) Adjust the rotation direction and rotation speed of the rotating motor;

[0015] (4) Cut the cable to be tested so that its length is greater than the total length of the operating table and less than the length of the baffle;

[0016] (5) Strip the insulation layer on both sides of the cable that is in contact with the clamp, making the stripping length greater than the width of the clamp;

[0017] (6) Make sure the buffer tape firmly wraps the cable surface;

[0018] (7) Place the wrapped cable on the operating table, secure both sides of the cable with a clamp, and secure the clamp to the operating table.

[0019] The control system of the cable oscillation simulation test device of the present invention comprises:

[0020] An adjusting device, used for adjusting the telescopic rod to the highest position;

[0021] The upper computer is used to adjust the rotation direction and rotation speed of the rotating motor;

[0022] A liquid adding device, used for adding acidic and alkaline liquids into the liquid spraying device;

[0023] A liquid spray device control module, used for starting the liquid spray device;

[0024] A motor control device is used to start the rotating motor after the liquid spray device is started.

[0025] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) By simulating the oscillation damage of cables in different environments, the device can simulate more comprehensive test conditions, such as air acidity and alkalinity, applied pressure and oscillation amplitude, so as to more systematically study the seismic resistance of cables and fill the technical gap in simulating a variety of different test conditions; (2) The device realizes the degree of cable wear in different environments through the design of telescopic rods, rotating motors, pendulums and other components. This flexible test design enables researchers to have a more comprehensive understanding of the various challenges that cables may encounter in actual operation, thereby providing a scientific basis for the design and improvement of cables; (3) The device can adapt to different cable materials and cross-sectional sizes, meet a wide range of test needs, and has important engineering application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0027] Figure 2 is a top view of the device;

[0028] Figure 3 A side view of the device. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with embodiments.

[0030] As shown in the figure, the cable oscillation simulation test device described in the present invention includes an operating table 1 and a clamp 2 installed on the operating table 1 for clamping the cable conductor, a telescopic rod 4 connected to a rotating motor 3 is provided above the clamp 2, and a pendulum 5 is installed below the telescopic rod 4.

[0031] The telescopic rod 4 and the pendulum 5 are connected by threads. Different pendulums have different surface roughness, which can simulate different wear environments of the cable surface.

[0032] The clamp 2 is detachably mounted on the operating table 1 .

[0033] A baffle 6 is provided on the periphery of the device so that the cable can be placed in a closed environment that meets the requirements to avoid being disturbed.

[0034] Liquid spray devices 7 are respectively provided on both sides of the operating table 1 so that the liquid sprayed onto the cable can be more uniform.

[0035] One side of the rotating motor 3 is electrically connected to the display 8 .

[0036] The operating table 1 has a relatively large mass so as not to shake during the simulation test.

[0037] The method of using the cable oscillation simulation test device described in the present invention is as follows: adjust the telescopic rod to the highest position to facilitate the installation of the pendulum; install the pendulum that meets the test requirements on the telescopic rod, and ensure that the installation is firm; adjust the rotation direction and rotation speed of the rotating motor through the upper computer, so that the swing degree of the pendulum meets the test requirements; cut the cable to be tested to a suitable length, so that its length is greater than the total length of the operating table and less than the length of the baffle; strip off the insulating layer on both sides of the cable that is in contact with the clamp, so that the stripping length is greater than the width of the clamp, and then make the buffer belt firmly wrap the cable surface; put the wrapped cable on the operating table, select a clamp that is suitable for the size of the cable cross-section to fix both sides of the cable, and fix the clamp on the operating table at the same time; at this point, the installation work of the device is completed.

[0038] Adjust the telescopic rod to slowly lower the pendulum to the cable surface. As the telescopic rod descends, the pressure on the cable increases. Observe the pressure value on the screen until it reaches the value required for the test. The telescopic function of the telescopic rod can not only make the pendulum contact cables of different cross-sectional sizes, but also make the pressure on the cable different, thus reflecting the degree of vibration to which the cable is subjected. By using pendulums with different surface roughness, the cable can be subjected to different degrees of wear.

[0039] Pour the acidic and alkaline liquids that meet the test conditions into the liquid spray device, and fix the baffle; start the liquid spray device to spray at the interface between the cable and the pendulum, start the rotating motor, and change the rotating direction (front and back swing or left and right swing) and rotation frequency of the rotating motor through the host computer. Observe the wear of the cable.

[0040] The control method of the cable oscillation simulation test device of the present invention is as follows:

[0041] 1. Raise the telescopic rod to the highest position; 2. Install the pendulum on the telescopic rod; 3. Adjust the rotation direction and rotation speed of the rotating motor; 4. Cut the cable to be tested so that its length is greater than the total length of the operating table and less than the length of the baffle; 5. Strip the insulation layer on both sides of the cable that is in contact with the clamp, so that the stripping length is greater than the width of the clamp; 6. Make the buffer tape firmly wrap the cable surface; 7. Put the wrapped cable on the operating table, fix both sides of the cable with the clamp, and fix the clamp on the operating table.

[0042] The control system of the cable oscillation simulation test device of the present invention is as follows:

[0043] An adjustment device is used to adjust the telescopic rod to the highest position; a host computer is used to adjust the rotation direction and rotation speed of the rotating motor; a liquid adding device is used to add acidic and alkaline liquids into the liquid spray device; a liquid spray device control module is used to start the liquid spray device; and a motor control device is used to start the rotating motor after the liquid spray device is started.

[0044] The device can simulate the cable oscillation test under different air environments, pressures, oscillation amplitudes, cable cross-sections, etc. according to different actual needs. The simulation test can check the resistance change of the cable in a short time during the test phase, the wear state under different test conditions, add reasonable test methods and performance tests, and evaluate the relationship between the wear degree and discharge.

Claims

1. A cable oscillation simulation test device, characterized in that: The invention comprises an operating table (1) and a clamp (2) installed on the operating table (1) for clamping a cable conductor, a telescopic rod (4) connected to a rotating motor (3) is provided above the clamp (2), and a pendulum (5) is installed below the telescopic rod (4).

2. The cable oscillation simulation test device according to claim 1, characterized in that: The telescopic rod (4) is detachably connected to the pendulum (5).

3. The cable oscillation simulation test device according to claim 1, characterized in that: The clamp (2) is detachably mounted on the operating table (1).

4. The cable oscillation simulation test device according to claim 3, characterized in that: The detachable connection is one of a threaded connection, a snap connection or a hinged connection.

5. The cable oscillation simulation test device according to claim 1, characterized in that: Liquid spray devices (7) are respectively provided on both sides of the operating table (1).

6. The cable oscillation simulation test device according to claim 1, characterized in that: One side of the rotating motor (3) is electrically connected to the display (8).

7. The cable oscillation simulation test device according to claim 3, characterized in that: The detachable connection is a threaded connection.

8. The cable oscillation simulation test device according to claim 1, characterized in that: A baffle (6) is arranged on the periphery of the device so that the cables can be placed in a closed environment.

9. A control method for the cable oscillation simulation test device according to claim 1, characterized in that: The following steps are involved: (1) Adjust the telescopic rod to the highest position; (2) Install the pendulum on the telescopic rod; (3) Adjust the rotation direction and rotation speed of the rotating motor; (4) Cut the cable to be tested so that its length is greater than the total length of the operating table and less than the length of the baffle; (5) Strip the insulation layer on both sides of the cable that is in contact with the clamp, making the stripping length greater than the width of the clamp; (6) Make sure the buffer tape firmly wraps the cable surface; (7) Place the wrapped cable on the operating table, secure both sides of the cable with a clamp, and secure the clamp to the operating table.

10. A control system for the cable oscillation simulation test device according to claim 1, characterized in that: include: An adjusting device, used for adjusting the telescopic rod to the highest position; The upper computer is used to adjust the rotation direction and rotation speed of the rotating motor; A liquid adding device, used for adding acidic and alkaline liquids into the liquid spraying device; A liquid spray device control module, used for starting the liquid spray device; A motor control device is used to start the rotating motor after the liquid spray device is started.

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