Adaptive protection device and method for deep-shaft tail rope

Abstract

An adaptive protection device and method for a deep-shaft tail rope. The device comprises outer cross beams (1), outer longitudinal beams (2), a middle longitudinal beam (3), rollers (4), a roller detection unit, spray heads (5) and a control unit, wherein the middle longitudinal beam (3) is arranged horizontally and passes through the middle of tail ropes (6), the outer longitudinal beams (2) and the middle longitudinal beam (3) have the same direction and are arranged on two outer sides of the tail ropes (6), and the outer cross beams (1) are arranged horizontally, are perpendicular to the middle longitudinal beam (3) and are arranged on the two outer sides of the tail ropes (6); the rollers (4) are arranged on the outer cross beams (1), the outer longitudinal beams (2) and the middle longitudinal beam (3), and are configured to frictionally rotate with the tail ropes (6) when the tail ropes (6) sway; the roller detection unit detects the rotation of the rollers (4), and transmits data to the control unit; and the spray heads (5) are arranged on the outer cross beam (1), the outer longitudinal beam (2) and the middle longitudinal beam (3), are controlled by the control unit, and are configured to spray air at the tail ropes (6) when the rollers (4) frictionally rotate with the tail ropes (6). By means of monitoring the rotation of the rollers (4), the position where the tail ropes (6) come into contact with the rollers (4) is determined, and the tail ropes (6) are pushed away from the position by means of compressed gas, such that the tail ropes (6) can work within an ideal area, thereby reducing friction.

Description

A Deep Well Tail Rope Adaptive Protection Device and Method Technical Field

[0001] This invention relates to the field of protection technology for tail ropes in mine hoisting systems, specifically to an adaptive protection device and method for deep well tail ropes. Background Technology

[0002] Currently, the protective devices used in the field of tail rope protection generally include tail rope active guidance technology and roller passive isolation. Among them, tail rope active guidance technology is achieved by installing a guide wheel, which allows the tail rope to pass around the guide wheel and achieve self-adaptive guidance for safe operation. Its advantages are simple structure and low collision friction, but it has many disadvantages, such as difficult installation and high cost.

[0003] The use of rollers to passively isolate the tail rope is common in mine hoisting systems. This structure uses multiple rollers to isolate the tail rope, preventing it from directly impacting the beam. Instead, the tail rope collides with the rollers, changing the sliding friction between the tail rope and the beam into rolling friction between the tail rope and the rollers. Its advantages are simple structure and easy installation, but it has many drawbacks. For example, large speed differences can easily cause the tail rope to break due to friction. Furthermore, in this structure, once the tail rope collides with the rollers, the friction between the tail rope and the rollers will not stop until the tail rope's acceleration and deceleration have finished. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a deep well tail rope adaptive protection device for protecting the tail rope from swaying and abrasion, comprising an outer crossbeam, an outer longitudinal beam, an intermediate longitudinal beam, rollers, a roller detection unit, a nozzle, and a control unit.

[0005] The central longitudinal beam is horizontally positioned, passing through the middle of the tail rope. The outer longitudinal beams, oriented in the same direction as the central longitudinal beam, are positioned on both sides of the tail rope. The outer crossbeams are horizontally positioned, perpendicular to the central longitudinal beam, on both sides of the tail rope. This arrangement surrounds the ascending and descending sections of the tail rope with the outer crossbeams and outer longitudinal beams, separated in the middle by the central longitudinal beam. In cases with multiple tail ropes, multiple outer crossbeams, outer longitudinal beams, and central longitudinal beams are used for separation, ensuring that each tail rope has its own independent ascending and descending section, thus limiting the tail rope's swaying within that area.

[0006] Rollers are installed on the outer crossbeam, outer longitudinal beam, and middle longitudinal beam to reduce friction as the tail rope sways and rotates against it. A roller detection unit detects the rotation of the rollers and transmits the data to the control unit. Nozzles, controlled by the control unit, are also installed on the outer crossbeam, outer longitudinal beam, and middle longitudinal beam. When the rollers rotate against the tail rope, air is sprayed onto the tail rope through the nozzles, pushing the tail rope away from the rollers and ensuring it operates within the desired area.

[0007] Furthermore, each roller is equipped with a corresponding nozzle above or below it, which can improve the accuracy of air jetting onto the tail rope.

[0008] Furthermore, the roller detection unit includes a Hall sensor, and a magnet is installed inside the roller. When the roller rotates, the magnetic field of the magnet inside changes in space. The Hall sensor detects the change in the magnetic field, thereby determining whether the roller is rotating.

[0009] Furthermore, several magnets are provided and evenly arranged inside the roller along the circumference of the roller to enhance the sensing accuracy of the Hall sensor.

[0010] Furthermore, it also includes an automatic pressure reducing valve, which is connected to the nozzle and used to control the pressure of the gas ejected from the nozzle. The automatic pressure reducing valve is connected to a control unit, which controls the pressure at its outlet.

[0011] Furthermore, it also includes a pressure gauge connected between the nozzle and the automatic pressure reducing valve. The pressure gauge transmits data to the control unit to monitor the pressure at the outlet of the automatic pressure reducing valve.

[0012] Furthermore, it also includes a gas storage tank, which is connected to the inlet of an automatic pressure reducing valve for storing compressed gas.

[0013] Furthermore, it also includes an air compressor, which is connected to the air inlet of the air tank to provide compressed air.

[0014] The present invention also provides an adaptive protection method for deep well tail ropes, using the aforementioned device. It includes: a control unit that determines whether the roller is rotating; if it is rotating, it controls the corresponding nozzle to spray air outwards, causing the tail rope to move away from the rotating roller.

[0015] Furthermore, it also includes an automatic pressure reducing valve, which the nozzle is connected to. If the roller is still rotating after a preset time threshold has elapsed after the jet is sprayed, the automatic pressure reducing valve is controlled to output a larger pressure, and this process is repeated until the roller stops rotating.

[0016] This invention determines the contact position between the tail rope and the roller by monitoring the rotation of the roller, and uses compressed gas to push the tail rope away from that position, so that the tail rope can work in an ideal area, reducing friction and increasing system reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is an overall schematic diagram of the present invention; Figure 2 is a schematic diagram of the roller and Hall sensor of the present invention; Figure 3 is a structural schematic diagram of the present invention; Figure 4 is a schematic diagram of the tail rope friction roller of the present invention; Figure 5 is a top view of Figure 4; In the figures: 1, outer crossbeam; 2, outer longitudinal beam; 3, middle longitudinal beam; 4, roller; 5, nozzle; 6, tail rope; 7, Hall sensor; 8, magnet; 9, automatic pressure reducing valve; 10, pressure gauge; 11, air tank; 12, air compressor; 13, solenoid valve; 14, water separator; 15, oil-water separator; 16, shut-off valve; 17, safety valve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Embodiments

[0020] As shown in Figure 1, the deep well tail rope adaptive protection device of this embodiment is used to protect the tail rope 6 from swaying and abrasion. It includes an outer crossbeam 1, an outer longitudinal beam 2, an intermediate longitudinal beam 3, a roller 4, a roller detection unit, a nozzle 5, and a control unit.

[0021] The middle longitudinal beam 3 is horizontally positioned, passing through the middle of the ascending and descending sections of the tail rope 6. The outer longitudinal beams 2 are oriented in the same direction as the middle longitudinal beam 3 and are positioned on both sides of the tail rope 6. The outer crossbeams 1 are horizontally positioned and perpendicular to the middle longitudinal beam 3 on both sides of the tail rope 6. This surrounds the ascending and descending sections of the tail rope 6 with the outer crossbeams 1 and outer longitudinal beams 2, and is separated in the middle by the middle longitudinal beam 3. In the case of multiple tail ropes 6, multiple outer crossbeams 1, outer longitudinal beams 2, and middle longitudinal beams 3 are used for separation, so that the ascending and descending sections of each tail rope 6 have independently separated spaces, limiting the swaying of the tail rope 6 to within this area.

[0022] In this embodiment, two tail ropes 6 are used as an example. A middle longitudinal beam 3 passes through the middle of the two tail ropes 6. Two outer longitudinal beams 2 are set on both sides of the tail ropes 6. Three outer transverse beams 1 are set in the middle and on the outside of the two tail ropes 6, forming a grid-shaped combination that restricts the upper and lower sections of the two tail ropes 6 to an independent area.

[0023] Rollers 4 are installed on the outer crossbeam 1, outer longitudinal beam 2, and intermediate longitudinal beam 3 to rotate against the tail rope 6 when it sways, reducing friction. A roller detection unit detects the rotation of the rollers 4 and transmits the data to the control unit. Nozzles 5 are installed on the outer crossbeam 1, outer longitudinal beam 2, and intermediate longitudinal beam 3, controlled by the control unit. When the rollers 4 rotate against the tail rope 6, air is sprayed onto the tail rope 6 through the nozzles 5, pushing the tail rope 6 away from the rollers 4 and ensuring it operates within an ideal area. Preferably, each roller 4 has a corresponding nozzle 5 below it, which improves the accuracy of air spraying onto the tail rope 6. In other embodiments, multiple rollers 4 can share a single nozzle 5, but the accuracy of air spraying will be slightly lower.

[0024] The roller detection unit in this embodiment includes a Hall sensor 7 and a magnet 8 inside the roller 4. When the roller 4 rotates, the magnetic field of the magnet 8 inside it changes in space. The Hall sensor 7 detects the change in magnetic field to determine whether the roller 4 is rotating. In other embodiments, any device that can detect the rotation of the roller 4 can be used, such as installing a rotary encoder on the roller 4 to detect whether the roller 4 is rotating.

[0025] As shown in Figure 2, preferably, there are several magnets 8, which are evenly arranged in the roller 4 along the circumference of the roller 4 to enhance the sensing accuracy of the Hall sensor 7.

[0026] In this preferred embodiment, an automatic pressure reducing valve 9 is also included. The nozzle 5 is connected to the automatic pressure reducing valve 9 to control the pressure of the gas ejected from the nozzle 5. The automatic pressure reducing valve 9 is connected to a control unit, which controls the pressure at its outlet. When the air pressure is insufficient to push the tail rope 6, the air pressure can be increased.

[0027] Further preferably, it also includes a pressure gauge 10, connected between the nozzle 5 and the automatic pressure reducing valve 9. The data from the pressure gauge 10 is transmitted to the control unit for monitoring the pressure at the outlet of the automatic pressure reducing valve 9. Preferably, it also includes an air storage tank 11, connected to the inlet of the automatic pressure reducing valve 9, for storing compressed gas. Preferably, it also includes an air compressor 12, connected to the inlet of the air storage tank 11, for providing compressed air. In other embodiments, it can also be connected to an existing compressed air pipeline.

[0028] As shown in Figure 3, to further enhance the performance, devices such as a solenoid valve 13, a water separator 14, an oil-water separator 15, a shut-off valve 16, and a safety valve 17 can also be installed. The solenoid valve 13 controls the opening and closing of the nozzle 5, the shut-off valve 16 controls the opening and closing of related pipelines, the safety valve 17 ensures that the pipeline pressure does not exceed the limit, and the water separator 14 and the oil-water separator 15 purify the gas in the pipeline.

[0029] As shown in Figures 4 and 5, when roller 4 rotates, it is determined that the tail rope 6 is in contact with roller 4. By monitoring the rotation of roller 4, the position of contact between the tail rope 6 and roller 4 is determined. Compressed gas is used to push the tail rope 6 away from this position, so that the tail rope 6 can work in the ideal area, reducing friction and increasing system reliability.

[0030] If the air pressure is insufficient to push the tail rope 6, the pressure at the nozzle 5 can be increased by the automatic pressure reducing valve 9 until the tail rope 6 is pushed away. Example

[0031] The deep well tail rope adaptive protection method of this embodiment uses the device in the above embodiment.

[0032] The control unit determines whether roller 4 is rotating based on data from the roller detection unit. If roller 4 is rotating, it indicates that the tail rope 6 is rubbing against roller 4, and the control unit controls the corresponding nozzle 5 to spray air outward, causing the tail rope 6 to move away from the rotating roller 4.

[0033] This embodiment also includes an automatic pressure reducing valve 9. If the roller 4 is still rotating after a preset time threshold has ejaculated, it means that the previous air pressure was insufficient to push the tail rope 6 away from the roller 4. The automatic pressure reducing valve 9 is controlled to output a greater pressure, and this process is repeated until the roller 4 stops rotating.

[0034] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A deep well tail rope adaptive protection device for protecting against tail rope swaying and abrasion, characterized in that, It includes an outer crossbeam, outer longitudinal beam, middle longitudinal beam, rollers, roller detection unit, nozzles, and control unit. The middle longitudinal beam is horizontally positioned and passes through the middle of the tail rope. The outer longitudinal beams are oriented in the same direction as the middle longitudinal beam and are positioned on both sides of the tail rope. The outer crossbeam is horizontally positioned and perpendicular to the middle longitudinal beam on both sides of the tail rope. The rollers are mounted on the outer crossbeam, outer longitudinal beam, and middle longitudinal beam and are used to rotate against the tail rope when it sways. The roller detection unit detects the rotation of the rollers and transmits the data to the control unit. The nozzles are mounted on the outer crossbeam, outer longitudinal beam, and middle longitudinal beam and are controlled by the control unit to spray air onto the tail rope when the rollers rotate against the tail rope.

2. The deep well tail rope adaptive protection device according to claim 1, characterized in that, Each roller has a corresponding nozzle above or below it.

3. The deep well tail rope adaptive protection device according to claim 1, characterized in that, The roller detection unit includes a Hall sensor, and the roller contains a magnet.

4. The deep well tail rope adaptive protection device according to claim 3, characterized in that, Several magnets are provided and are evenly distributed inside the roller along the circumference of the roller.

5. The deep well tail rope adaptive protection device according to claim 1, characterized in that, It also includes an automatic pressure reducing valve, which is connected to the nozzle to control the pressure of the gas ejected from the nozzle; the automatic pressure reducing valve is controlled by a control unit.

6. The deep well tail rope adaptive protection device according to claim 5, characterized in that, It also includes a pressure gauge, which is connected between the nozzle and the automatic pressure reducing valve to detect the pressure at the outlet of the automatic pressure reducing valve; the pressure gauge data is transmitted to the control unit.

7. The deep well tail rope adaptive protection device according to claim 6, characterized in that, It also includes a gas storage tank, which is connected to the inlet of an automatic pressure reducing valve and is used to store compressed gas.

8. The deep well tail rope adaptive protection device according to claim 7, characterized in that, It also includes an air compressor, which is connected to the air inlet of the air tank.

9. A deep well tail rope adaptive protection method, characterized in that, Using the device as described in claim 1, the device includes: a control unit that determines whether the roller is rotating; if it is rotating, it controls the corresponding nozzle to spray air outwards, so that the tail rope is moved away from the rotating roller.

10. The deep well tail rope adaptive protection method according to claim 9, characterized in that, It also includes an automatic pressure reducing valve, to which the nozzle is connected; if the roller is still rotating after a preset time threshold has elapsed after the jet is sprayed, the automatic pressure reducing valve is controlled to output a greater pressure, and this process is repeated until the roller stops rotating.

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