Mine hoist spindle monitoring device

Abstract

The utility model discloses a mine hoist main shaft monitoring device, including device base, a pair of base setting flange and height adjusting rotor, the utility model relates to the technical field of in -pit auxiliary equipment, and this device realizes the adaptation of multi -specification main shaft through compatible lifting and positioner structure, can flexible matching the hoist main shaft of different height and diameter, and the double monitoring subassembly of supporting can synchronous monitoring the lateral deviation and longitudinal vibration amplitude in the operation of main shaft, through real -time data acquisition and analysis, accurate capture equipment abnormal state, when the monitoring system identifies the deviation overrun or abnormal vibration frequency spectrum, will trigger the early warning mechanism in time, effectively prevented the main shaft fracture, the container fall and other major accident risk, the essential safety level of mine hoist system has been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology in mines, specifically a monitoring device for the main shaft of a mine hoist. Background Technology

[0002] Mining hoists are core equipment for transporting materials and lifting personnel between underground mines and the surface. They use wire ropes to pull containers up and down shafts or inclined ramps, undertaking the tasks of transporting coal and ore and lifting personnel. Their core component, the main shaft assembly, directly bears fixed static loads, dynamic working loads, and sudden impact loads. It must ensure no residual deformation under extreme working conditions. As the core of power transmission, the main shaft connects the motor and the drum, and its speed and torque are adjusted by a reducer. Its operating status directly affects system safety. Therefore, the necessity of main shaft monitoring is reflected in three aspects: First, mining equipment is subjected to heavy loads and humid conditions for extended periods. First, corrosive environments make the spindle prone to fatigue wear and cracks, which can lead to breakage if not detected in time. Second, safety standards clearly require that internal defects (such as white spots and cracks) meet the specified limits. Third, spindle failure can trigger a chain of risks such as brake failure and container fall, seriously threatening personnel safety. Currently, conventional inspection has two major pain points: it is difficult to achieve all-weather real-time monitoring, and the inspection equipment lacks compatibility with spindles of different sizes. Existing technologies may already have solutions to the above problems, but this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a monitoring device for the main shaft of a mine hoist, comprising a device base, a pair of base mounting flanges, and a height adjusting rotor. The height adjusting rotor is installed inside the device base, and the pair of base mounting flanges are respectively installed on the device base. A compatible lifting and adjusting structure is installed on the device base. The compatible lifting and adjusting structure includes: a transfer gearbox, a pair of displacement threaded sleeves, a pair of transmission threaded rods, a bearing platform, and a pair of side support columns.

[0004] The transfer gearbox is installed inside the device base. A pair of displacement threaded sleeves are respectively fitted onto a pair of transmission threaded rods, and the pair of displacement threaded sleeves are respectively connected to the bearing platform. A pair of transmission threaded rods are respectively inserted into the device base, and the pair of transmission threaded rods are respectively connected to the transfer gearbox. A pair of side support columns are respectively installed on the bearing platform, and a dual monitoring component is respectively installed on the pair of side support columns.

[0005] It should be noted that, as described above, the device base is fixed to the ground via a pair of base mounting flanges. Then, based on the relative height of the hoist main shaft, the height adjustment rotor inside the device base is driven to rotate. The rotating height adjustment rotor drives the distribution gearbox, which in turn drives a pair of transmission threaded rods to rotate. The rotating transmission threaded rods, through the threads, cause the displacement threaded sleeve to be driven and raised or lowered, thereby raising or lowering the bearing platform. This adjusts the relative height of a pair of side support columns, thus better accommodating the hoist main shaft. The parameter display screens installed on the side support columns can display the operating status of the hoist main shaft, facilitating monitoring of the main shaft's operation by inspection personnel.

[0006] Preferably, the dual monitoring assembly includes: a pair of symmetrical electric telescopic rods, a semi-circular bearing block, a first bonding lubrication layer, a vibration sensor, a hoist main shaft body, an embedded electric telescopic rod, a connecting push block, a connecting spring column, a probe mounting block, a pressure sensor, a pressure probe, a side bonding arm, a second bonding lubrication layer, and a pressure sensor mounting block.

[0007] A pair of symmetrical electric telescopic rods are respectively installed on the side support columns. The semi-circular bearing blocks are respectively connected to the pair of symmetrical electric telescopic rods. The first bonding lubricating layer is installed on the semi-circular bearing block and is movably connected to the main body of the hoist. The vibration sensor is installed on the semi-circular bearing block. The second bonding lubricating layer is installed on the side bonding arm and is movably connected to the main body of the hoist. The embedded electric telescopic rod is installed on the side support columns. The connecting push block is installed on the embedded electric telescopic rod. The connecting spring column is installed on the connecting push block and is connected to the side bonding arm. The probe mounting block is installed on the side bonding arm. The pressure sensor is installed on the pressure sensor mounting block. The pressure sensor mounting block is installed on the connecting push block. The pressure probe is installed on the probe mounting block.

[0008] It should be noted that, as described above, the synchronous extension and retraction of a pair of symmetrical electric telescopic rods causes the semi-circular bearing block to be displaced until the first bonding lubrication layer is bonded to the main body of the hoisting machine. The bonding auxiliary steel balls on the first bonding lubrication layer ensure that the tight bond between the first bonding lubrication layer and the main body of the hoisting machine does not affect the operation of the main body. Furthermore, because the semi-circular bearing block is in contact with the main body of the hoisting machine, the vibration generated during the operation of the main body is monitored and analyzed by a vibration sensor, and the vibration status is displayed on the parameter display screen. The embedded electric telescopic rod on the other side extends, causing the connecting push block and connecting spring column to move the pressure sensor mounting block closer to the main body of the hoisting machine until the second bonding... The first lubrication layer is tightly bonded to the main shaft of the hoist. The auxiliary lubrication balls on the second lubrication layer ensure that the tight bond between the second lubrication layer and the main shaft does not affect the normal operation of the main shaft. The length of the connecting spring column needs to be adjusted according to the maximum sway value of the hoist main shaft that needs to be monitored. If the hoist main shaft exceeds the preset warning sway, the swaying hoist main shaft will push the side fitting arm to move and compress the connecting spring column. The pressure probe on the probe mounting block will then touch the pressure sensor on the pressure sensor mounting block. Once the pressure probe and the pressure sensor come into contact, an alarm will be triggered, reminding the staff to intervene in time to avoid problems.

[0009] Preferably, the device base is provided with a maintenance and inspection port;

[0010] Preferably, the first bonding lubrication layer is provided with bonding auxiliary steel balls;

[0011] Preferably, the second bonding lubrication layer is provided with auxiliary lubrication steel balls;

[0012] Preferably, a parameter display screen is provided on the side support column.

[0013] This utility model provides a monitoring device for the main shaft of a mine hoist. It offers the following advantages compared to existing technologies: This device achieves compatibility with multiple main shaft specifications through a compatible lifting and adjusting structure, flexibly matching hoist main shafts of different heights and diameters. Furthermore, the accompanying dual monitoring components can simultaneously monitor the lateral offset and longitudinal vibration amplitude of the main shaft during operation. Through real-time data acquisition and analysis, it accurately captures abnormal equipment conditions. When the monitoring system identifies excessive offset or abnormal vibration spectrum, it immediately triggers an early warning mechanism, effectively preventing major accident risks such as main shaft breakage and container falls, significantly improving the inherent safety level of the mine hoisting system. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the main cross-sectional structure of the monitoring device for the main shaft of the mining hoist described in this utility model.

[0015] Figure 2 This is a side view of the main shaft monitoring device for mining hoists according to the present invention.

[0016] Figure 3 for Figure 1 A magnified view of the letter "A" in the diagram.

[0017] Figure 4 for Figure 2 A magnified view of a portion of the letter "B".

[0018] In the diagram: 1. Device base; 2. Base mounting flange; 3. Height-adjustable rotor; 4. Divider gearbox; 5. Displacement threaded sleeve; 6. Transmission threaded rod; 7. Bearing platform; 8. Side support column; 9. Symmetrical electric telescopic rod; 10. Semi-arc bearing block; 11. First bonding lubrication layer; 12. Vibration sensor; 13. Hoist main shaft body; 14. Embedded electric telescopic rod; 15. Connecting push block; 16. Connecting spring column; 17. Probe mounting block; 18. Pressure sensor; 19. Pressure probe; 20. Side bonding arm; 21. Second bonding lubrication layer; 22. Pressure sensor mounting block. Detailed Implementation

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0021] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-4As shown, the main shaft monitoring device for a mine hoist includes a device base 1, a pair of base mounting flanges 2, and a height adjusting rotor 3. The height adjusting rotor 3 is installed inside the device base 1. The pair of base mounting flanges 2 are respectively installed on the device base 1. A compatible lifting and adjusting structure is installed on the device base 1. The compatible lifting and adjusting structure includes: a transfer gearbox 4, a pair of displacement threaded sleeves 5, a pair of transmission threaded rods 6, a bearing platform 7, and a pair of side support columns 8. The transfer gearbox 4 is installed inside the device base 1, and the pair of displacement threaded sleeves 5 are respectively fitted onto the pair of transmission threaded rods 6. Furthermore, a pair of displacement threaded sleeves 5 are respectively connected to the bearing platform 7, a pair of transmission threaded rods 6 are respectively inserted into the device base 1, and a pair of transmission threaded rods 6 are respectively connected to the transfer gearbox 4, a pair of side support columns 8 are respectively installed on the bearing platform 7, and a dual monitoring assembly is respectively installed on the pair of side support columns 8; the dual monitoring assembly includes: a pair of symmetrical electric telescopic rods 9, a semi-circular bearing block 10, a first contact lubrication layer 11, a vibration sensor 12, a hoist main shaft body 13, an embedded electric telescopic rod 14, a connecting push block 15, a connecting spring column 16, and a probe holder. The system includes a mounting block 17, a pressure sensor 18, a pressure probe 19, a side-mounted arm 20, a second lubricating layer 21, and a pressure sensor mounting block 22. A pair of symmetrical electric telescopic rods 9 are respectively mounted on the side support columns 8. A semi-circular bearing block 10 is connected to the pair of symmetrical electric telescopic rods 9. The first lubricating layer 11 is mounted on the semi-circular bearing block 10 and is movably connected to the main shaft body 13 of the hoist. The vibration sensor 12 is mounted on the semi-circular bearing block 10. The second lubricating layer 21 is mounted on the side-mounted arm 20, and the second... The lubrication layer 21 is movably connected to the main shaft body 13 of the hoist. The embedded electric telescopic rod 14 is installed on the side support column 8. The connecting push block 15 is installed on the embedded electric telescopic rod 14. The connecting spring column 16 is installed on the connecting push block 15 and is connected to the side fitting arm 20. The probe mounting block 17 is installed on the side fitting arm 20. The pressure sensor 18 is installed on the pressure sensor mounting block 22. The pressure sensor mounting block 22 is installed on the connecting push block 15. The pressure probe 19 is installed on the probe mounting block 17.

[0022] According to the appendix Figure 1-4It is found that by fixing the device base 1 to the ground through a pair of base mounting flanges 2, the height adjusting rotor 3 inside the device base 1 is driven to rotate according to the relative height of the hoist main shaft body 13. The rotating height adjusting rotor 3 drives the distribution gearbox 4 to rotate, which in turn drives a pair of transmission threaded rods 6 to rotate. The rotating transmission threaded rods 6, through the threads, drive the displacement threaded sleeve 5 to be raised or lowered, thereby raising or lowering the bearing platform 7, and thus adjusting the relative height of a pair of side support columns 8, which can better accommodate the hoist main shaft body 13. The parameter display screen on the side support column 8 can display the operating status of the hoist main shaft body 13, facilitating the monitoring of the main shaft's operation by inspection personnel. A pair of symmetrical electric telescopic rods 9 are driven to extend and retract synchronously, causing the semi-circular bearing block 10 to be displaced until the first bonding lubrication layer 11 is bonded to the hoist main shaft body 13. The bonding auxiliary steel balls on the first bonding lubrication layer 11 ensure that when the first bonding lubrication layer 11 is tightly bonded to the hoist main shaft body 13, it will not affect the operation of the hoist main shaft body 13. Furthermore, because the semi-circular bearing block 10 and the hoist main shaft body 13 are in a... In the mating state, the vibration generated during the operation of the hoist main shaft body 13 will be monitored and analyzed by the vibration sensor 12, and the vibration status will be displayed on the parameter display screen. The embedded electric telescopic rod 14 on the other side extends, causing the connecting push block 15 and the connecting spring column 16 to drive the pressure sensor mounting block 22 closer to the hoist main shaft body 13 until the second mating lubrication layer 21 is tightly mated with the hoist main shaft body 13. The auxiliary lubrication steel balls provided on the second mating lubrication layer 21 ensure that the second mating lubrication layer 21 is tightly mated with the hoist main shaft body 13 without affecting the hoist. The normal operation of the main shaft body 13 and the length of the connecting spring column 16 need to be adjusted according to the maximum sway value of the hoist main shaft body 13 that needs to be warned. If the hoist main shaft body 13 exceeds the preset warning sway amplitude, the swaying hoist main shaft body 13 will push the side fitting arm 20 to move and compress the connecting spring column 16. The pressure probe 19 on the probe mounting block 17 will touch the pressure sensor 18 on the pressure sensor mounting block 22. Once the pressure probe 19 and the pressure sensor 18 come into contact with each other, an alarm will be triggered to remind the staff to intervene in time to avoid problems.

[0023] 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 monitoring device for the main shaft of a mine hoist, comprising a device base, a pair of base mounting flanges, and a height adjusting rotor, wherein the height adjusting rotor is installed inside the device base, the pair of base mounting flanges are respectively installed on the device base, and a lifting and positioning structure is installed on the device base, characterized in that, The compatible lifting and adjusting structure includes: a transfer gearbox, a pair of displacement threaded sleeves, a pair of transmission threaded rods, a bearing platform, and a pair of side support columns; The transfer gearbox is installed inside the device base. A pair of displacement threaded sleeves are respectively fitted onto a pair of transmission threaded rods, and the pair of displacement threaded sleeves are respectively connected to the bearing platform. A pair of transmission threaded rods are respectively inserted into the device base, and the pair of transmission threaded rods are respectively connected to the transfer gearbox. A pair of side support columns are respectively installed on the bearing platform, and a dual monitoring component is respectively installed on the pair of side support columns.

2. The monitoring device for the main shaft of a mine hoist according to claim 1, characterized in that, The dual monitoring assembly includes: a pair of symmetrical electric telescopic rods, a semi-circular bearing block, a first bonding lubrication layer, a vibration sensor, a hoist main shaft body, an embedded electric telescopic rod, a connecting push block, a connecting spring column, a probe mounting block, a pressure sensor, a pressure probe, a side bonding arm, a second bonding lubrication layer, and a pressure sensor mounting block. A pair of symmetrical electric telescopic rods are respectively installed on the side support columns. The semi-circular bearing blocks are respectively connected to the pair of symmetrical electric telescopic rods. The first bonding lubricating layer is installed on the semi-circular bearing block and is movably connected to the main body of the hoist. The vibration sensor is installed on the semi-circular bearing block. The second bonding lubricating layer is installed on the side bonding arm and is movably connected to the main body of the hoist. The embedded electric telescopic rod is installed on the side support columns. The connecting push block is installed on the embedded electric telescopic rod. The connecting spring column is installed on the connecting push block and is connected to the side bonding arm. The probe mounting block is installed on the side bonding arm. The pressure sensor is installed on the pressure sensor mounting block. The pressure sensor mounting block is installed on the connecting push block. The pressure probe is installed on the probe mounting block.

3. The monitoring device for the main shaft of a mine hoist according to claim 2, characterized in that, The device base is equipped with a maintenance and inspection port.

4. The monitoring device for the main shaft of a mine hoist according to claim 3, characterized in that, The first bonding lubrication layer is provided with bonding auxiliary steel balls.

5. The monitoring device for the main shaft of a mine hoist according to claim 4, characterized in that, The second bonding lubrication layer is provided with auxiliary lubrication steel balls.

6. The monitoring device for the main shaft of a mine hoist according to claim 5, characterized in that, A parameter display screen is installed on the side support column.

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