A self-powered cage steel wire rope nondestructive testing device

Abstract

The utility model provides a kind of self-generating type cage steel wire rope nondestructive testing device, including detection unit and power generation unit;Detection unit package magnetic flaw excitation device and magnetic flaw sensor, magnetic flaw excitation device and magnetic flaw sensor are tubular and concentric distribution, for cage steel wire rope to be threaded;Power generation unit includes base, friction wheel and generator;Base is used to be fixed on cage, and sliding seat and pre-tight spring for pushing and pulling sliding seat towards cage steel wire rope direction are equipped on base;Friction wheel is arranged on sliding seat, and it is tightly contacted to cage steel wire rope by the pushing and pulling effect of pre-tight spring, and it can be rolled with cage steel wire rope friction with cage steel wire rope as cage ascends and lowers;The input shaft of generator is drivingly connected with the axle of friction wheel, and is used to convert the kinetic energy of friction wheel rotation into electric energy to power supply detection unit.The utility model completes nondestructive testing to cage steel wire rope under the condition that not increasing shaft infrastructure construction cost, and not affecting cage normal hoisting operation.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing technology for steel wire ropes in cable trays, specifically a self-generating non-destructive testing device for steel wire ropes in cable trays. Background Technology

[0002] A wire rope hoisting system is a system that uses wire ropes to hoist and move a cage. The two ends of the wire rope are fixed and tightened at the surface and bottom of the shaft using specialized devices, eliminating the need for additional hoisting beams inside the shaft. Its main function is to ensure the cage can withstand significant weight and maintain stable movement within the shaft. In addition, the wire rope prevents material blockage within the hoisting system and reduces wear on the hoisting mechanism. Therefore, the good safety condition of the wire rope is crucial for safe production operations in the mine.

[0003] Typically, cages are powered by battery packs and lack communication capabilities. During non-destructive testing of the cage guide wire ropes, using wired connections or adding battery packs for power redundancy would not only increase the cost of shaft infrastructure construction but also extend battery charging and swapping time, impacting normal production efficiency. Furthermore, it would hinder the maintenance and upkeep of the cage during its later use. Utility Model Content

[0004] The present invention aims to provide a self-generating non-destructive testing device for cage wire ropes, which can perform non-destructive testing on cage wire ropes without increasing the construction cost of well infrastructure or affecting the normal hoisting operation of the cage.

[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: a self-generating non-destructive testing device for cage guide wire rope, comprising a testing unit and a power generation unit; the testing unit includes a magnetic flaw detection excitation device and a magnetic flaw detection sensor, both of which are cylindrical and concentrically distributed to allow the cage guide wire rope to pass through; the power generation unit includes a base, a friction wheel, and a generator; the base is used to fix itself on the cage, and a slide seat and a pre-tensioning spring for pushing and pulling the slide seat toward the cage guide wire rope are slidably provided on the base; the friction wheel is set on the slide seat and is in close contact with the cage guide wire rope through the pushing and pulling action of the pre-tensioning spring, and can rub and roll against the cage guide wire rope as the cage rises and falls; the input shaft of the generator is connected to the wheel axle of the friction wheel and is used to convert the kinetic energy of the friction wheel rotation into electrical energy to supply power to the testing unit.

[0006] Preferably, the slide is provided with a sliding Y-shaped frame, the friction wheel is rotatably located at the fork of the Y-shaped frame, the handle of the Y-shaped frame is connected to the slide by screws, and the hole on the Y-shaped frame for screw insertion is a strip hole.

[0007] Preferably, both the axle of the friction wheel and the output shaft of the generator are equipped with synchronous pulleys, and the two synchronous pulleys are connected by a synchronous belt drive.

[0008] Preferably, the generator is fixed on a slide, and a tensioning pulley for pressing the timing belt is provided on the slide.

[0009] Preferably, the axle of the friction wheel is also connected to the stroke measuring mechanism.

[0010] Preferably, the rim of the friction wheel is an inwardly curved shape.

[0011] Preferably, the detection unit further includes a front-end detection bracket that can be fixed on the cage, and the magnetic flaw detection excitation device and the magnetic flaw detection sensor are fixed at intervals on the front-end detection bracket.

[0012] Preferably, both the magnetic flaw detection excitation device and the magnetic flaw detection sensor are openable and closable, and each is provided with a latch to maintain the closed state.

[0013] Preferably, it also includes a data acquisition information substation and a wireless bridge transmission unit. The data acquisition information substation is used to receive the detection data from the magnetic flaw detection sensor, and the wireless bridge transmission unit is used to transmit the data from the data acquisition information substation.

[0014] This invention addresses the problem of non-destructive testing of the cage guide wire rope without increasing the cost of well infrastructure construction or affecting the normal hoisting operation, and transmits the test data wirelessly to the ground. Furthermore, this invention features a simple structure, reliable function, no radiation exposure to personnel, high accuracy of detection results, reduced misjudgments, and improved testing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the working state of this utility model;

[0016] Figure 2 This is a schematic diagram of the detection unit in this utility model;

[0017] Figure 3 This is a schematic diagram of the power generation unit in this utility model;

[0018] The diagram is labeled as follows: 1. Cage; 2. Cable guide rope; 3. Detection unit; 301. Magnetic flaw detection excitation device; 302. Magnetic flaw detection sensor; 303. Front-end detection bracket; 4. Power generation unit; 401. Base; 402. Stroke measuring mechanism; 403. Friction wheel; 404. Synchronous belt; 405. Y-shaped frame; 406. Generator; 407. Preload spring; 408. Sliding column; 409. Sliding block; 410. Sliding seat; 5. Data acquisition information substation; 6. Wireless bridge transmission unit. Detailed Implementation

[0019] This invention relates to a self-generating non-destructive testing device for steel wire ropes in a guideway. It uses a non-mechanical contact testing unit 3 as the testing method, powered by a power generation unit 4. The testing data is used by a data acquisition information substation 5 to determine the damage condition of the steel wire rope 2, and then transmitted to the ground via a wireless bridge transmission unit 6.

[0020] like Figure 1-3 As shown, this utility model is installed at the top guide device of the cage 1, including a detection unit 3, a power generation unit 4, a data acquisition information substation 5, and a wireless bridge transmission unit 6. The detection unit 3 has a front-end detection bracket 303 for connecting to the top of the cage 1, and the front-end detection bracket 303 is fixed at the guide device at the top of the cage 1. The power generation unit 4 is installed on the top of the cage 1 via a base 401, and a friction wheel 403 is provided on the base 401. The friction wheel 403 engages with the guide wire rope 2 through rolling friction. Through the above structure, the detection unit 3 and the power generation unit 4 can move up and down along the guide wire rope 2 following the tube wheel. When the guide wire rope 2 suffers internal or external damage, the detection unit 3 sends the collected detection data to the data acquisition information substation 5 and triggers an alarm signal. Finally, taking advantage of the good ventilation conditions of the shaft, the data is transmitted to the ground through the wireless bridge transmission unit 6 to complete the monitoring and early warning of the guide wire rope 2.

[0021] like Figure 2 As shown, the detection unit 3 consists of a magnetic flaw detection excitation device 301, a magnetic flaw detection sensor 302, and a front-end detection bracket 303. The magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302 are coaxially mounted on the front-end detection bracket 303 and connected to the cage 1 through the front-end detection bracket 303. The guide wire rope 2 passes through the cage 1 along the axis of the magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302. When the guide wire rope 2 detection unit 3 completes the synchronous downward movement with the cage 1, the magnetic flaw detection excitation device 301 excites the guide wire rope 2, allowing the magnetic flaw detection sensor 302 to sense the magnetic field of the wire rope. Because the magnetic field is directly related to the shape and health of the wire rope, the magnetic field condition of the wire rope can be obtained based on the magnetic field condition, thus realizing the monitoring of the wire rope.

[0022] In this embodiment, both the magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302 are openable and closable, and each is equipped with a latch to maintain a closed state. After unfastening the latch, the magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302 can be respectively placed around the outer circumference of the guide wire rope 2, and then the latch can be closed to maintain the closed state of the magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302, preventing the magnetic flaw detection excitation device 301 and the magnetic flaw detection sensor 302 from coming loose during the detection process.

[0023] like Figure 3 As shown, the power generation unit 4 mainly includes a base 401, a friction wheel 403, a Y-shaped frame 405, a generator 406, and a preload spring 407.

[0024] The base 401 is fixedly connected to the top of the cage 1. Two parallel sliding columns 408 are fixedly mounted on the base 401. Sliding blocks 409 are slidably engaged on the sliding columns 408. The two sliding blocks 409 are fixed to the bottom of the same slide block 410. The preload spring 407 is sleeved on the sliding column 408 and is in a compressed state, thus having elastic potential energy to push the slide block 410 toward the guide wire rope 2. The handle of the Y-shaped frame 405 is fixed to the slide block 410 by screws. The friction wheel 403 is rotatably mounted at the fork of the Y-shaped frame 405. Its rim is in contact with the guide wire rope 2 under the action of the elastic potential energy of the preload spring 407, thus engaging in rolling friction with the guide wire rope 2 during the up and down movement of the cage 1. In this embodiment, with the elastic potential energy of the preload spring 407 remaining constant, in order to adjust the contact pressure between the friction wheel 403 and the guide wire rope 2, the through hole on the Y-shaped frame 405 for the screw to pass through is set as a strip shape. This allows the initial position of the Y-shaped frame 405 and the friction wheel 403 on it to be adjusted by loosening the screw, and then the position of the Y-shaped frame 405 and the friction wheel 403 to be fixed by tightening the screw.

[0025] Both ends of the axle of the friction wheel 403 are distributed through the forks of the Y-shaped frame 405. A synchronous pulley is located at the right end of the axle, while the generator 406 is fixed on the slide 410. Its input shaft has another synchronous pulley, and the two synchronous pulleys are connected by a ring-shaped synchronous belt 404, thereby inputting the rotational kinetic energy of the friction wheel 403 into the generator 406 for power generation. The power output end of the generator 406 is connected to the aforementioned detection unit 3, data acquisition information substation 5, wireless bridge transmission unit 6, and other devices to provide power. Because the friction wheel 403 can move relative to the slide 410 with the Y-shaped frame 405, this invention can also provide an elastic tensioning wheel on the slide 410. The tensioning wheel presses the synchronous belt 404 to stably maintain the transmission connection between the axles of the generator 406 and the friction wheel 403. A stroke measuring mechanism 402 is connected to the left end of the axle. The stroke measuring mechanism 402 is used to synchronously measure the running stroke of the cage 1, realizing the measurement of the detection position of the wire rope 2 in the cage guide.

Claims

1. A self-generating non-destructive testing device for steel wire ropes in cable trays, characterized in that: The system includes a detection unit (3) and a power generation unit (4). The detection unit (3) includes a magnetic flaw detection excitation device (301) and a magnetic flaw detection sensor (302). Both the magnetic flaw detection excitation device (301) and the magnetic flaw detection sensor (302) are cylindrical and concentrically distributed to allow the guide wire rope (2) to pass through. The power generation unit (4) includes a base (401), a friction wheel (403), and a generator (406). The base (401) is used to fix the system to the cage (1), and a slide block (410) is slidably provided on the base (401). The device includes a preload spring (407) for pushing and pulling the slide (410) toward the guide wire rope (2); a friction wheel (403) is mounted on the slide (410) and is in close contact with the guide wire rope (2) by the pushing and pulling action of the preload spring (407), and can rub against the guide wire rope (2) as the cage (1) rises and falls; the input shaft of the generator (406) is connected to the axle drive of the friction wheel (403) and is used to convert the kinetic energy of the friction wheel (403) into electrical energy to supply power to the detection unit (3).

2. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: The slide (410) is provided with a sliding Y-shaped frame (405), and the friction wheel (403) is rotatably set at the fork of the Y-shaped frame (405). The handle of the Y-shaped frame (405) is connected to the slide (410) by screws, and the hole on the Y-shaped frame (405) for screw insertion is a strip hole.

3. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 2, characterized in that: Both the axle of the friction wheel (403) and the output shaft of the generator (406) are equipped with synchronous pulleys, and the two synchronous pulleys are connected by a synchronous belt (404).

4. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 3, characterized in that: The generator (406) is fixed on the slide (410), and the slide (410) is provided with a tensioning pulley for pressing the timing belt (404).

5. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: The axle of the friction wheel (403) is also connected to the travel measuring mechanism (402).

6. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: The rim of the friction wheel (403) is an inwardly curved arc.

7. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: The detection unit (3) also includes a front detection bracket (303) that can be fixed on the cage (1), and the magnetic flaw detection excitation device and magnetic flaw detection sensor (302) of the cage wire rope are fixed at intervals on the front detection bracket (303).

8. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: The magnetic flaw detection excitation device (301) and magnetic flaw detection sensor (302) of the wire rope of the guide are both openable and closable, and are respectively equipped with buckles for maintaining the closed state.

9. The self-generating non-destructive testing device for steel wire ropes in a guideway as described in claim 1, characterized in that: It also includes a data acquisition information substation (5) and a wireless bridge transmission unit (6). The data acquisition information substation (5) is used to receive the detection data of the magnetic flaw detector (302), and the wireless bridge transmission unit (6) is used to transmit the data of the data acquisition information substation (5) to the outside.

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