Nondestructive testing device for main shaft of mining elevator

Abstract

The utility model discloses a nondestructive testing device for a main shaft of a mining elevator, which comprises a testing table, auxiliary supporting members are symmetrically arranged on the testing table and used for supporting the main shaft of the mining elevator, and a friction driving mechanism is arranged on one side of each auxiliary supporting member and used for driving the main shaft of the mining elevator to rotate. After the main shaft is placed in place, the vertical adjusting mechanism is controlled to act, the ultrasonic detection probe is in contact with the side wall of the main shaft to start ultrasonic detection, in the detection process, the main shaft is controlled to rotate, the main shaft is driven to rotate, and the main shaft is driven to rotate. And after the current annular surface detection is completed, the horizontal moving mechanism acts to enable the ultrasonic detection probe to move along the axis direction of the main shaft, so that the comprehensive detection of different positions is realized.

Description

Technical Field

[0001] This utility model relates to the field of mining hoist main shaft testing technology, specifically a non-destructive testing device for mining hoist main shafts. Background Technology

[0002] Hoists, as a key transportation equipment widely used in mining production, are essential for the continuous and efficient operation of mines. They also bear the heavy responsibility of transporting coal and materials from underground to the mine and personnel and materials from the surface, making them a critical artery of the mine. Therefore, ensuring their stable operation is of positive significance to mine production. The main shaft, as a key component of the hoist, plays a crucial role in the performance of the hoist itself. Therefore, the hoist main shaft must undergo rigorous non-destructive testing before leaving the factory. Ultrasonic testing is currently the most commonly used method for main shaft testing. In ultrasonic testing, the probe needs to directly contact the surface of the shaft being tested to transmit ultrasonic signals. In existing technologies, main shaft testing often involves a stationary setting of the main shaft, with manual hand-held probe operation. This method has low automation, poor practicality, and requires operators to constantly adjust their positions, resulting in high labor intensity and decreased testing efficiency. Therefore, this paper addresses these issues through in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a non-destructive testing device for the main shaft of a mining hoist, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a non-destructive testing device for the main shaft of a mining hoist, including a testing platform, on which auxiliary support components are symmetrically arranged for supporting the main shaft of the mining hoist, a friction drive mechanism is provided on one side of the auxiliary support components for driving the main shaft of the mining hoist to rotate, a horizontal moving mechanism is provided on one side of the testing platform, an L-shaped bracket is provided on the moving end of the horizontal moving mechanism, a vertical adjustment mechanism is provided on the L-shaped bracket, and an ultrasonic testing probe is installed at the lower end of the vertical adjustment mechanism;

[0005] The horizontal moving mechanism includes a fixed groove, a transmission screw, a guide component, a servo drive component, and a moving seat. The fixed groove is set on the detection platform. The transmission screw is rotatably set in the fixed groove. The guide components are symmetrically arranged on both sides of the transmission screw. The servo drive component is set on one end of the transmission screw. The moving seat is threadedly engaged with the transmission screw through a screw nut and is connected to the guide components on both sides respectively.

[0006] The aforementioned guide component includes a guide rail and a guide seat. The guide rail is symmetrically arranged on both sides of the transmission screw, and the guide seat is slidably fitted on the guide post and fixedly connected to the movable seat.

[0007] The aforementioned friction drive mechanism includes a mounting platform, a support, a rotary drive assembly, and a friction drive wheel. The mounting platform is mounted on a testing platform, the support is mounted on the mounting platform, the rotary drive assembly is mounted on one side of the support, and the friction drive wheel is rotatably mounted on the support and connected to the output end of the rotary drive assembly.

[0008] The aforementioned vertical adjustment mechanism includes an electric push rod, a guide rod, a mounting base, and a pressure monitoring component. The electric push rod is vertically mounted on the lower end of the crossbeam of the L-shaped bracket. The guide rod is symmetrically mounted on both sides of the electric push rod and slides in cooperation with the limiting sleeve on the L-shaped bracket. The mounting base is mounted on the telescopic end of the electric push rod and is connected to the guide rod on both sides. The pressure monitoring component is mounted on the lower end of the mounting base and is assembled and connected to the ultrasonic testing probe.

[0009] The pressure monitoring component includes a mounting base, a compression spring, and a pressure sensor. The lower end face of the mounting base has a mounting groove, and the upper part of the mounting base slides in conjunction with the mounting groove. The compression spring is symmetrically arranged in the mounting groove and connected to the mounting base. The pressure sensor is arranged in the mounting groove and corresponds to the top block at the upper end of the mounting base.

[0010] The aforementioned auxiliary support components include U-shaped brackets and support rollers. The U-shaped brackets are symmetrically arranged on the testing platform, and the support rollers are rotatably installed inside the U-shaped brackets.

[0011] This utility model provides a non-destructive testing device for the main shaft of a mining hoist. The device offers the following advantages: The non-destructive testing (NDT) device for the main shaft of a mining hoist features an auxiliary support component on the testing platform to support the main shaft. A friction drive mechanism on one side of the auxiliary support component drives the main shaft to rotate, allowing for rotational drive during testing. A horizontal movement mechanism on one side of the testing platform adjusts the horizontal position of the L-shaped support, enabling horizontal movement of the ultrasonic testing probe on the vertical adjustment mechanism. In use, after the main shaft is positioned, the vertical adjustment mechanism is activated, bringing the ultrasonic testing probe into contact with the side wall of the main shaft for ultrasonic testing. During testing, the main shaft rotates, achieving comprehensive circumferential NDT of the main shaft. After the current circumferential surface is tested, the horizontal movement mechanism moves the ultrasonic testing probe along the axis of the main shaft, enabling comprehensive testing at different locations. Furthermore, the vertical adjustment mechanism automatically adjusts the height of the ultrasonic testing probe to meet the testing requirements of different diameter segments on the main shaft. The device is compact, highly automated, and significantly improves the efficiency of main shaft testing operations. Attached Figure Description

[0012] Figure 1This is a three-dimensional structural diagram of the non-destructive testing device for the main shaft of a mining hoist described in this utility model.

[0013] Figure 2 This is a schematic diagram of the isometric structure of the non-destructive testing device for the main shaft of the mining hoist described in this utility model.

[0014] Figure 3 This is a side view sectional structural diagram of the non-destructive testing device for the main shaft of a mining hoist described in this utility model.

[0015] Figure 4 This utility model Figure 3 A partially enlarged structural diagram.

[0016] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at position a.

[0017] In the diagram: 1. Testing table; 2. L-shaped bracket; 3. Ultrasonic testing probe; 4. Fixing groove; 5. Transmission screw; 6. Servo drive component; 7. Moving seat; 8. Guide rail; 9. Guide seat; 10. Mounting platform; 11. Support; 12. Rotary drive assembly; 13. Friction drive wheel; 14. Electric push rod; 15. Guide rod; 16. Mounting seat; 17. Assembly seat; 18. Compression spring; 19. Pressure sensor; 20. Top block; 21. U-shaped bracket; 22. Support roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Refer to the appendix of the instruction manual Figure 1-5As can be seen, this application specifically designs a non-destructive testing device for the main shaft of a mining hoist. Auxiliary support components are symmetrically arranged on the testing platform 1 to support the main shaft of the mining hoist. A friction drive mechanism is provided on one side of the auxiliary support components to drive the rotation of the main shaft. A horizontal moving mechanism is provided on one side of the testing platform 1. An L-shaped bracket 2 is provided on the moving end of the horizontal moving mechanism. A vertical adjustment mechanism is provided on the L-shaped bracket 2, and an ultrasonic testing probe 3 is installed at the lower end of the vertical adjustment mechanism. The auxiliary support components include a U-shaped bracket 21 and support rollers 22. The U-shaped brackets 21 are symmetrically arranged on the testing platform 1, and the support rollers 22 are rotatably installed within the U-shaped brackets 21. The horizontal moving mechanism includes a fixed groove 4, a transmission screw 5, guide members, a servo drive component 6, and a moving seat 7. The fixed groove 4 is set on the testing table 1. The transmission screw 5 is rotatably mounted in the fixed groove 4. The guide members are symmetrically arranged on both sides of the transmission screw 5. The servo drive component is set on one end of the transmission screw 5. The moving seat 7 is threadedly engaged with the transmission screw 5 through a screw nut and is connected to the guide members on both sides. The guide members include guide rails 8 and guide seats 9. The guide rails 8 are symmetrically arranged on both sides of the transmission screw 5. The guide seats 9 are slidably fitted on the guide columns and fixedly connected to the moving seat 7. An auxiliary support component is set on the testing table 1 to support the main shaft of the mine hoist. A friction drive mechanism is installed on one side of the component to drive the rotation of the main shaft of the mine hoist, which can drive the rotation of the main shaft during the inspection process; a horizontal moving mechanism is installed on one side of the inspection table 1, which can be used to adjust the horizontal position of the L-shaped bracket 2, thereby realizing the horizontal movement of the ultrasonic testing probe 3 on the vertical adjustment mechanism; in use, after the main shaft is placed in place, the vertical adjustment mechanism is controlled to move, and the ultrasonic testing probe 3 is brought into contact with the side wall of the main shaft to start ultrasonic testing. During the testing process, the main shaft is controlled to rotate, thereby realizing the circumferential non-destructive testing of the main shaft. After the current circumferential surface is tested, the horizontal moving mechanism is activated, and the transmission is controlled by the servo drive 6. The moving lead screw 5 drives the rotation, and the rotation of the transmission lead screw 5 drives the moving seat 7 to slide along the guide rail 8 under the limiting action of the guide seats 9 on both sides. This drives the L-shaped bracket 2 to move horizontally, allowing the ultrasonic testing probe 3 to move along the axis of the main shaft, thus achieving comprehensive testing at different positions. In addition, the vertical adjustment mechanism can automatically adjust the height of the ultrasonic testing probe 3 to meet the testing requirements of different diameter segments on the main shaft. The structure is compact and highly automated, which can greatly improve the efficiency of the main shaft testing operation. It should be noted that the servo drive 6 is a drive control mechanism with a servo motor as the power source.

[0020] In specific implementation, as a preferred configuration, the above-mentioned friction drive mechanism includes a mounting platform 10, a support 11, a rotary drive assembly 12, and a friction drive wheel 13. The mounting platform 10 is set on the testing table 1, the support 11 is set on the mounting platform 10, the rotary drive assembly 12 is set on one side of the support 11, and the friction drive wheel 13 is rotatably set on the support 11 and connected to the output end of the rotary drive assembly 12. In use, the rotary drive assembly 12 drives the friction drive wheel 13 on the support 11 to rotate, thereby using the friction between the friction drive wheel 13 and the main shaft to drive the main shaft to rotate. The rotary drive assembly 12 is a drive control mechanism with a stepper motor as the power source, which can realize low speed and high torque rotation output.

[0021] In a preferred embodiment, the vertical adjustment mechanism includes an electric push rod 14, a guide rod 15, a mounting base 16, and a pressure monitoring component. The electric push rod 14 is vertically positioned on the lower end of the crossbeam of the L-shaped bracket 2. The guide rod 15 is symmetrically positioned on both sides of the electric push rod 14 and slides in cooperation with the limiting sleeve on the L-shaped bracket 2. The mounting base 16 is positioned on the telescopic end of the electric push rod 14 and is connected to the guide rod 15 on both sides. The pressure monitoring component is positioned on the lower end of the mounting base 16 and is assembled and connected to the ultrasonic testing probe 3. The pressure monitoring component includes a mounting base 17, a compression spring 18, and a pressure sensor 19. The lower end face of the mounting base 16 has an assembly groove. The upper part of the mounting base 17 slides in cooperation with the assembly groove. The compression spring 18 is symmetrically positioned in the assembly groove and slides in cooperation with the assembly spring 19. The mounting base 17 is connected to the mounting slot, and the pressure sensor 19 is set in the mounting slot and corresponds to the top block 20 at the upper end of the mounting base 17. In use, the telescopic end of the control electric push rod 14 expands, which in turn pushes the mounting base 16 to move downward under the limiting action of the guide rods 15 on both sides, so that the lower ultrasonic detection probe is in contact with the outer wall of the spindle. After the contact is made, the electric push rod 14 continues to press down, and the mounting base 17 slides upward to squeeze the compression spring 18. After the top block 20 at the top of the mounting base 17 contacts the pressure sensor 19, the pressure sensor 19 sends a signal to remind the ultrasonic detection probe to be in contact with the outer wall of the spindle. The control electric push rod 14 stops expanding and stays in the current position. The ultrasonic detector is turned on, and the ultrasonic detection probe 3 can be used to realize non-destructive testing of the spindle. The structure is simple and the degree of automation is high.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for the main shaft of a mining hoist, comprising a testing table, characterized in that, The testing platform is symmetrically equipped with auxiliary support components to support the main shaft of the mine hoist. A friction drive mechanism is installed on one side of each auxiliary support component to drive the main shaft of the mine hoist to rotate. A horizontal moving mechanism is installed on one side of the testing platform. An L-shaped bracket is installed on the moving end of the horizontal moving mechanism, and a vertical adjustment mechanism is installed on the L-shaped bracket. An ultrasonic testing probe is installed at the lower end of the vertical adjustment mechanism. The horizontal moving mechanism includes a fixed groove, a transmission screw, a guide component, a servo drive component, and a moving seat. The fixed groove is located on the testing platform. The transmission screw is rotatably mounted within the fixed groove. The guide components are symmetrically arranged on both sides of the transmission screw. The servo drive component is located at one end of the transmission screw. The moving seat is threadedly engaged with the transmission screw via a screw nut and is connected to the guide components on both sides.

2. The non-destructive testing device for the main shaft of a mining hoist according to claim 1, characterized in that, The guide component includes a guide rail and a guide seat. The guide rail is symmetrically arranged on both sides of the transmission screw, and the guide seat is slidably fitted on the guide post and fixedly connected to the movable seat.

3. The non-destructive testing device for the main shaft of a mining hoist according to claim 1, characterized in that, The friction drive mechanism includes a mounting platform, a support, a rotary drive assembly, and a friction drive wheel. The mounting platform is set on a testing platform, the support is set on the mounting platform, the rotary drive assembly is set on one side of the support, and the friction drive wheel is rotatably mounted on the support and connected to the output end of the rotary drive assembly.

4. The non-destructive testing device for the main shaft of a mining hoist according to claim 1, characterized in that, The vertical adjustment mechanism includes an electric push rod, a guide rod, a mounting base, and a pressure monitoring component. The electric push rod is vertically mounted on the lower end of the crossbeam of the L-shaped bracket. The guide rod is symmetrically mounted on both sides of the electric push rod and slides in cooperation with the limiting sleeve on the L-shaped bracket. The mounting base is mounted on the telescopic end of the electric push rod and is connected to the guide rod on both sides. The pressure monitoring component is mounted on the lower end of the mounting base and is assembled and connected to the ultrasonic testing probe.

5. The non-destructive testing device for the main shaft of a mining hoist according to claim 4, characterized in that, The pressure monitoring component includes a mounting base, a compression spring, and a pressure sensor. The lower end face of the mounting base has a mounting groove, and the upper part of the mounting base slides in the mounting groove. The compression spring is symmetrically arranged in the mounting groove and connected to the mounting base. The pressure sensor is arranged in the mounting groove and corresponds to the top block at the upper end of the mounting base.

6. The non-destructive testing device for the main shaft of a mining hoist according to claim 1, characterized in that, The auxiliary support components include U-shaped brackets and support rollers. The U-shaped brackets are symmetrically arranged on the testing platform, and the support rollers are rotatably installed inside the U-shaped brackets.

Images