A deep mine hoisting device and method
By providing upward power through a booster mechanism, combined with a balancing and clamping mechanism, the problems of wire rope and winch load and insufficient lateral stability of the hoisting cage in deep mine hoisting devices are solved, thereby improving the stability and safety of the hoisting cage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LANZHOU ENG & RES INST OF NONFERROUS METALLURGY CO LTD
- Filing Date
- 2024-03-19
- Publication Date
- 2026-04-24
AI Technical Summary
In deep mine hoisting devices, the service life of the wire rope and winch is shortened due to the large load in the initial stage of hoisting cage as it rises. In addition, the lateral stability of the hoisting cage is poor during the lifting and lowering process in the vertical shaft, making it easy to collide with the shaft wall, which poses a safety hazard.
A booster mechanism provides upward power, and a balancing mechanism uses a level to measure the tilt angle and control the air compressor's exhaust direction to prevent the lifting cage from swinging. Stability is improved by combining a clamping mechanism and a top support mechanism.
It extends the service life of the wire rope and winch, reduces the frequency of failures, improves the lateral stability of the hoisting cage, avoids collisions with the well wall, and ensures safety.
Smart Images

Figure CN118047290B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of deep mine transportation equipment technology, and in particular to a deep mine hoisting device and method. Background Technology
[0002] Mine shaft hoisting systems are essential equipment in mine production, primarily used for hoisting and transporting ore, personnel, materials, and equipment within vertical shafts. They typically include a hoisting winch, wire rope, hoisting container (such as a hoisting cage), sheave, guide wheels, and braking devices.
[0003] Generally speaking, after loading heavy objects such as ore into the hoisting cage at the bottom of the well, the hoisting cage is driven to rise by the winch. In the initial stage of the rise, the wire rope is subjected to the greatest tension and the winch is under the highest load. This will cause irreversible wear on the wire rope and the winch, resulting in an increased failure rate and a shortened service life of the wire rope and the winch.
[0004] Meanwhile, during the lifting and lowering process in the shaft, the hoisting cage is easily affected by factors such as airflow disturbance and center of gravity shift, which can cause it to swing laterally. In severe cases, the hoisting cage may collide with the inner wall of the shaft, leading to a safety accident. In addition, since the depth of mine shafts is usually large (hundreds of meters), installing vertical guide rails to limit the lateral movement of the hoisting cage would be costly. Therefore, a low-cost technical solution for controlling the lateral swing of the hoisting cage is needed. Summary of the Invention
[0005] In view of this, it is necessary to provide a hoisting device and method for deep well mines to solve the technical problems of the service life of the wire rope and winch being affected by the large load in the early stage of hoisting cage as it rises, and the poor lateral stability of the hoisting cage during the lifting and lowering process in the vertical shaft.
[0006] To achieve the above objectives, the present invention provides a deep-well mine hoisting device, comprising:
[0007] The main body of the hoisting device includes a derrick, a sheave, a hoisting cage, a wire rope, and a winch. The derrick is fixed to the ground. The sheave is rotatably mounted on the derrick and located above the vertical shaft. The wire rope is wound around the sheave. One end of the wire rope is fixedly connected to the hoisting cage, and the other end of the wire rope is fixed and wound around the winch's winch disc.
[0008] A booster mechanism, comprising a booster plate and a booster drive component, wherein the booster plate is disposed at the bottom of the vertical shaft, and the booster drive component is connected to the booster plate and is used to drive the booster plate to move up and down; and,
[0009] The balancing mechanism includes a level, several air nozzles, and an air compressor. The level is fixed to the lifting cage, and each of the air nozzles is arranged around the lifting cage. The air compressor is used to draw air from the opposite side of the lifting cage's swing tendency into the air compressor according to the tilt direction of the lifting cage measured by the level, compress it, and then discharge it to the same side of the lifting cage's swing tendency to hinder the swing of the lifting cage.
[0010] In some embodiments, the booster mechanism further includes a support block for supporting the booster plate.
[0011] In some embodiments, the booster drive component is a booster drive cylinder, which is connected to the booster plate and is used to drive the booster plate to rise and fall.
[0012] In some embodiments, the number of air nozzles is four, and the four air nozzles are respectively disposed on the four side walls of the lifting cage. The balancing mechanism further includes an inlet five-way valve and an outlet five-way valve. One port of the inlet five-way valve is connected to the inlet of the air compressor, and the other four ports of the inlet five-way valve are respectively connected to the four air nozzles. One port of the outlet five-way valve is connected to the outlet of the air compressor, and the other four ports of the outlet five-way valve are respectively connected to the four air nozzles.
[0013] In some embodiments, the deep well mine hoisting device further includes a clamping mechanism, which includes a plurality of wing plates and a plurality of first telescopic members. One end of each wing plate is respectively hinged to the periphery of the hoisting cage, one end of each first telescopic member is respectively hinged to the periphery of the hoisting cage, and the other end of each first telescopic member is respectively hinged to the other end of the corresponding wing plate.
[0014] In some embodiments, the clamping mechanism further includes a plurality of friction bodies, which are respectively fixed to the outer side of the corresponding wing plate, and the outer side of the friction body is an arc surface.
[0015] In some embodiments, the deep-well mine hoisting device further includes a top support mechanism, which includes a top support plate and a second telescopic member. The top support plate is hinged to the wellhead of the vertical shaft, one end of the second telescopic member is hinged to the inner sidewall of the vertical shaft, and the other end of the second telescopic member is hinged to the top support plate. When the second telescopic member is at a first length, the top support plate is horizontally arranged and flush with the wellhead of the vertical shaft. When the second telescopic member is at a second length, the top support plate is vertically arranged and fits against the sidewall of the vertical shaft.
[0016] In some embodiments, a receiving groove is provided on the inner sidewall of the shaft opening. When the second telescopic member is at the second length, the top support plate is vertically arranged and fits against the sidewall of the shaft and is located in the receiving groove.
[0017] The present invention also provides a method for hoisting deep mines, applicable to the aforementioned deep mine hoisting device, and includes the following steps:
[0018] S1. The hoisting cage is lowered to the bottom of the shaft by a winch until it contacts the booster plate. The heavy object to be hoisted is placed into the hoisting cage. Then, the hoisting cage is raised by the winch, and the booster plate is raised by the booster drive component until the booster drive component reaches its maximum stroke. After that, the winch continues to raise the hoisting cage until it reaches the shaft opening. The heavy object in the hoisting cage is then unloaded to the ground.
[0019] S2. During the upward movement of the lifting cage, the tilt angle of the lifting cage is continuously measured using a level. When the tilt angle of the lifting cage is greater than the preset value, the inlet of the air compressor is connected to the air nozzle on the opposite side of the lifting cage's swing trend, and the outlet of the air compressor is connected to the air nozzle on the same side of the lifting cage's swing trend. The air compressor is started to draw air from the opposite side of the lifting cage's swing trend into the air compressor, compress it, and discharge it to the same side of the lifting cage's swing trend, thereby braking the swing trend of the lifting cage.
[0020] In some embodiments, the method for determining the oscillation tendency of the cage is as follows:
[0021] Obtain the tilt position and tilt angle of the lifting cage as measured by the level at time t;
[0022] Obtain the tilt position and tilt angle of the lifting cage as measured by the level at time t+1;
[0023] When the tilt angle of the lifting cage at time t+1 is greater than the preset angle, the tilt orientation of the lifting cage at time t and time t+1 is decomposed into the directions of the two closest air nozzles, and the tilt angles of the directions of the two closest air nozzles at time t and time t+1 are obtained respectively.
[0024] Compare the tilt angles of the two closest nozzles at time t and time t+1. If the tilt angle at time t+1 is greater than that at time t, it indicates that the oscillation trend is in the same direction as the tilt. Connect the air compressor outlet to the two nozzles closest to the tilt direction, and connect the air compressor inlet to the two nozzles on the opposite side. Start the air compressor and blow the airflow in the tilt direction to oppose the oscillation trend. Conversely, if the tilt angle at time t+1 is less than that at time t, it indicates that the oscillation trend is opposite to the tilt direction. Connect the air compressor inlet to the two nozzles closest to the tilt direction, and connect the air compressor outlet to the two nozzles on the opposite side. Start the air compressor and blow the airflow in the opposite direction of the tilt to oppose the oscillation trend.
[0025] Compared with the prior art, the beneficial effects of the technical solution proposed in this invention are as follows: by providing upward power to the hoisting cage in the initial stage of hoisting by the booster drive component, the force on the winch and wire rope in the initial stage of hoisting can be reduced, the service life of the winch and wire rope can be extended, and the failure frequency can be reduced. At the same time, by measuring the tilt angle and tilt direction of the hoisting cage by a level, the air opposite to the swing trend of the hoisting cage is drawn into the air compressor by an air compressor, compressed and then discharged to the same side of the swing trend of the hoisting cage to hinder the swing of the hoisting cage. This can prevent the hoisting cage from colliding with the shaft wall and greatly improve the lateral stability of the hoisting cage during the hoisting process. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of a structure of an embodiment of the deep-well mine hoisting device provided by the present invention;
[0027] Figure 2 yes Figure 1 A schematic diagram of the structure of a deep-well mine hoisting device after the hoisting cage reaches the wellhead;
[0028] Figure 3 yes Figure 1 A magnified view of a portion of region A in the middle;
[0029] Figure 4 yes Figure 2 A magnified view of a portion of region B in the middle;
[0030] Figure 5 yes Figure 1 A schematic diagram of the lifting cage in the diagram;
[0031] Figure 6 yes Figure 5 Sectional view of the middle section CC;
[0032] Figure 7 This is a schematic diagram of the swinging process of the lifting cage;
[0033] In the diagram: 1-Main body of the hoisting device, 11-Derrick, 12-Head sheave, 13-Hoisting cage, 14-Wire rope, 15-Windlock, 2-Boosting mechanism, 21-Boosting plate, 22-Boosting drive component, 23-Support block, 3-Balancing mechanism, 31-Level, 32-Air nozzle, 33-Air compressor, 34-Inlet five-way valve, 35-Outlet five-way valve, 4-Clamping mechanism, 41-Wing plate, 42-First telescopic component, 43-Friction body, 5-Top support mechanism, 51-Top support plate, 52-Second telescopic component, 100-Ground, 200-Vertical shaft, 210-Accommodation tank. Detailed Implementation
[0034] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0035] Please refer to Figures 1-7 The present invention provides a hoisting device for deep well mines, including a hoisting device body 1, a booster mechanism 2, and a balancing mechanism 3.
[0036] The main body 1 of the hoisting device includes a derrick 11, a sheave 12, a hoisting cage 13, a wire rope 14, and a winch 15. The derrick 11 is fixed to the ground 100. The sheave 12 is rotatably mounted on the derrick 11 and located above the vertical shaft 200. The wire rope 14 is wound around the sheave 12. One end of the wire rope 14 is fixedly connected to the hoisting cage 13, and the other end of the wire rope 14 is fixed and wound around the winch of the winch 15.
[0037] The boosting mechanism 2 includes a boosting plate 21 and a boosting drive component 22. The boosting plate 21 is disposed at the bottom of the vertical shaft 200. The boosting drive component 22 is connected to the boosting plate 21 and is used to drive the boosting plate 21 to rise and fall.
[0038] The balancing mechanism 3 includes a level 31, several air nozzles 32, and an air compressor 33. The level 31 is fixed to the lifting cage 13, and each of the air nozzles 32 is arranged around the lifting cage 13. The air compressor 33 is used to draw air from the opposite side of the lifting cage 13's swing tendency into the air compressor 33 according to the tilt direction of the lifting cage 13 measured by the level 31, compress it, and then discharge it to the same side of the lifting cage 13's swing tendency, so as to hinder the swing of the lifting cage 13.
[0039] In operation, the hoisting cage 13 is lowered to the bottom of the shaft 200 using the winch 15 until it contacts the booster plate 21. The load to be hoisted (such as ore) is then placed into the hoisting cage 13. The winch 15 then lifts the hoisting cage 13, simultaneously pushing the booster plate 21 upwards via the booster drive component 22 until it reaches its maximum stroke. The winch 15 continues to lift the hoisting cage 13 until it reaches the shaft opening of the shaft 200, whereupon the load is unloaded and brought to the surface. During the ascent of 13, the tilt angle of the lifting cage 13 is continuously measured by the level 31. When the tilt angle of the lifting cage 13 is greater than the preset value, the inlet of the air compressor 33 is connected to the air nozzle 32 on the opposite side of the swing trend of the lifting cage 13, and the outlet of the air compressor 33 is connected to the air nozzle 32 on the same side of the swing trend of the lifting cage 13. The air compressor 33 is started, and the air on the opposite side of the swing trend of the lifting cage 13 is drawn into the air compressor, compressed and discharged to the same side of the swing trend of the lifting cage 13, thereby braking the swing trend of the lifting cage 13.
[0040] The technical solution provided by this invention provides lifting power to the hoisting cage 13 in the initial stage of its ascent by the booster drive component 22. This reduces the force on the winch 15 and wire rope 14 during the initial stage of the hoisting cage 13's ascent, extends their service life, and reduces their failure frequency. At the same time, the hoisting cage 13's tilt angle and direction of inclination are measured by the level 31. Air is drawn into the air compressor 33 from the side opposite to the hoisting cage 13's swing tendency, compressed, and then discharged to the same side as the hoisting cage 13's swing tendency to hinder the hoisting cage 13's swing. This avoids collisions between the hoisting cage 13 and the shaft wall 200, greatly improving the lateral stability of the hoisting cage 13 during its ascent.
[0041] It should be understood that the level 31 in this invention can be a bubble level or other types of level.
[0042] It should be understood that, such as Figure 7 As shown, the tilting direction in this invention is defined as the tilting upward direction.
[0043] To facilitate the support of the booster plate 21 when loading and unloading heavy objects at the bottom of the well, please refer to... Figure 1 and Figure 3 In a preferred embodiment, the booster mechanism 2 further includes a support block 23, which supports the booster plate 21. When loading and unloading heavy objects at the bottom of the well, the booster plate 21 is supported by the support block 23, so that the booster drive component 22 does not need to be activated, thus reducing energy consumption.
[0044] To understand the specific functions of the booster drive component 22, please refer to [reference needed]. Figure 1 and Figure 3 In a preferred embodiment, the booster drive component 22 is a booster drive cylinder, which is connected to the booster plate 21 and is used to drive the booster plate 21 to rise and fall.
[0045] To specifically achieve the connection between the air compressor 33 and each air nozzle 32, please refer to... Figure 6In a preferred embodiment, the number of air nozzles 32 is four, and the four air nozzles 32 are respectively disposed on the four side walls of the lifting cage 13. The balancing mechanism 3 also includes an inlet five-way valve 34 and an outlet five-way valve 35. One port of the inlet five-way valve 34 is connected to the inlet of the air compressor 33, and the other four ports of the inlet five-way valve 34 are respectively connected to the four air nozzles 32. One port of the outlet five-way valve 35 is connected to the outlet of the air compressor 33, and the other four ports of the outlet five-way valve 35 are respectively connected to the four air nozzles 32. During use, the inlet of the intake five-way valve 34 is always open, while the other four ports of the intake five-way valve 34 are closed. The outlet of the exhaust five-way valve 35 is always open, while the other four ports of the exhaust five-way valve 35 are closed. When the tilt angle of the lifting cage 13 is greater than a preset value, the port of the intake five-way valve 34 connected to the air nozzle 32 on the opposite side of the swing trend of the lifting cage 13 opens, and the port of the exhaust five-way valve 35 connected to the air nozzle 32 on the same side of the swing trend of the lifting cage 13 opens. The air compressor 33 is started, and the air on the opposite side of the swing trend of the lifting cage 13 enters the intake five-way valve 34 through the air nozzle 32 on the opposite side of the swing trend of the lifting cage 13, and is then drawn into the air compressor 33. The compressed air is discharged to the air nozzle 32 on the same side of the swing trend of the lifting cage 13, thereby braking the swing trend of the lifting cage 13.
[0046] To perform emergency braking of the hoisting cage 13 in the event of severe instability or breakage of the wire rope 14, please refer to... Figure 5 In a preferred embodiment, the deep-well mine hoisting device further includes a clamping mechanism 4. The clamping mechanism 4 includes a plurality of wing plates 41 and a plurality of first telescopic members 42. One end of each wing plate 41 is hinged to the periphery of the hoisting cage 13, and one end of each first telescopic member 42 is hinged to the periphery of the hoisting cage 13. The other end of each first telescopic member 42 is hinged to the other end of the corresponding wing plate 41. In this embodiment, the first telescopic member 42 is a first telescopic cylinder. When the hoisting cage 13 becomes severely unstable (the level 31 detects that the tilt angle of the hoisting cage 13 is greater than the set maximum tilt angle) or the wire rope 14 breaks (the winch 15 detects that the tension of the wire rope 14 is lower than the minimum preset value), the winch of the winch 15 stops rotating. At the same time, each of the first telescopic members 42 extends, so that the ends of each wing plate 41 abut against the inner wall of the shaft 200, thereby clamping the hoisting cage 13 into the shaft 200 to prevent the hoisting cage 13 from falling and causing a safety accident.
[0047] To increase the friction between the end of the wing plate 41 and the inner wall of the shaft 200, please refer to... Figure 5In a preferred embodiment, the clamping mechanism 4 further includes a plurality of friction bodies 43, which are respectively fixed to the outer side of the corresponding wing plate 41, and the outer side of the friction body 43 is an arc surface.
[0048] To provide support for the hoisting cage 13 when loading and unloading heavy objects at the wellhead, please refer to... Figure 2 and Figure 4 In a preferred embodiment, the deep-well mine hoisting device further includes a top support mechanism 5, which includes a top support plate 51 and a second telescopic member 52. The top support plate 51 is hinged to the wellhead of the vertical shaft 200, and one end of the second telescopic member 52 is hinged to the inner sidewall of the vertical shaft 200. The other end of the second telescopic member 52 is hinged to the top support plate 51. When the second telescopic member 52 is at a first length, the top support plate 51 is horizontally arranged and flush with the wellhead of the vertical shaft 200. When the second telescopic member 52 is at a second length, the top support plate 51 is vertically arranged and fits against the sidewall of the vertical shaft 200. In this embodiment, the second telescopic component 52 is a second telescopic cylinder. When in use, after the lifting cage 13 reaches above the wellhead, the second telescopic component 52 extends, so that the top support plate 51 is set horizontally and flush with the wellhead of the vertical shaft 200. Then, the lifting cage 13 is lowered slightly to contact the top support plate 51. After that, the lifting cage 13 can be supported by the top support plate 51 when loading and unloading heavy objects.
[0049] To reduce the space occupied by the top support mechanism 5, please refer to... Figure 2 and Figure 4 In a preferred embodiment, a receiving groove 210 is provided on the inner side wall of the wellhead of the vertical shaft 200. When the second telescopic member 52 is at the second length, the top support plate 51 is vertically arranged and fits against the side wall of the vertical shaft 200 and is located in the receiving groove 210.
[0050] The present invention also provides a method for hoisting deep mines, applicable to the aforementioned deep mine hoisting device, and includes the following steps:
[0051] S1. The hoisting cage 13 is lowered to the bottom of the vertical shaft 200 by the winch 15 until the hoisting cage 13 contacts the booster plate 21. The heavy object to be hoisted (such as ore) is put into the hoisting cage 13. Then the hoisting cage 13 is driven to rise by the winch 15. At the same time, the booster plate 21 is pushed to rise by the booster drive component 22 until the booster drive component 22 reaches its maximum stroke. Then the winch 15 continues to drive the hoisting cage 13 to rise until it reaches the shaft opening of the vertical shaft 200. The heavy object in the hoisting cage 13 is then unloaded to the ground.
[0052] S2. During the upward movement of the lifting cage 13, the tilt angle of the lifting cage 13 is continuously measured by the level 31. When the tilt angle of the lifting cage 13 is greater than the preset value, the inlet of the air compressor 33 is connected to the air nozzle 32 on the opposite side of the swing trend of the lifting cage 13, and the outlet of the air compressor 33 is connected to the air nozzle 32 on the same side of the swing trend of the lifting cage 13. The air compressor 33 is started to draw air from the opposite side of the swing trend of the lifting cage 13 into the air compressor, compress it and discharge it to the same side of the swing trend of the lifting cage 13, thereby braking the swing trend of the lifting cage 13.
[0053] Specifically, the method for determining the swing trend of cage 13 is as follows:
[0054] (1) Obtain the tilt position and tilt angle of the lifting cage 13 measured by the level instrument 31 at time t;
[0055] (2) Obtain the tilt position and tilt angle of the lifting cage 13 measured by the level instrument 31 at time t+1;
[0056] (3) When the tilt angle of the lifting cage 13 at time t+1 is greater than the preset angle, the tilt orientation of the lifting cage 13 at time t and time t+1 is decomposed into the directions of the two closest air nozzles 32, and the tilt angles of the directions of the two closest air nozzles 32 at time t and time t+1 are obtained respectively.
[0057] (4) Compare the tilt angles of the two closest nozzles 32 at time t and time t+1. If the tilt angle at time t+1 is greater than that at time t, it indicates that the swing trend direction is the same as the tilt direction. Connect the outlet of the air compressor 33 to the two nozzles 32 closest to the tilt direction, connect the inlet of the air compressor 33 to the two nozzles 32 on the opposite side, start the air compressor 33, and blow the airflow to the tilt direction to hinder the swing trend. Conversely, if the tilt angle at time t+1 is less than that at time t, it indicates that the swing trend direction is opposite to the tilt direction. Connect the inlet of the air compressor 33 to the two nozzles 32 closest to the tilt direction, connect the outlet of the air compressor 33 to the two nozzles 32 on the opposite side, start the air compressor 33, and blow the airflow to the opposite side of the tilt direction to hinder the swing trend.
[0058] In this invention, the reason for comparing the magnitudes of the tilt angles at time t and t+1 is that the swing trend direction and tilt direction of the lifting cage 13 may be the same or opposite. By comparing the magnitudes of the tilt angles at time t and t+1, it can be determined whether the lifting cage 13 is in the process of rising or falling. If the tilt angle increases, it indicates that the lifting cage 13 is in the process of rising. At this time, the swing trend direction of the lifting cage 13 is the same as the tilt direction. Conversely, the swing trend direction of the lifting cage 13 is opposite to the tilt direction.
[0059] Preferably, since the tilt orientation of the lifting cage 13 is decomposed into the directions of the two closest air nozzles 32, the tilt angles of the two closest air nozzles 32 may be different. Therefore, the required exhaust volume for the two directions is also different. To facilitate the control of the exhaust volume, in this invention, the intake and exhaust volumes are controlled by controlling the relative opening degrees of the interfaces connecting the intake five-way valve 34 and the exhaust five-way valve 35 to the two closest air nozzles 32. For example, assuming the tilt orientation of the lifting cage 13 is 30° east of north, and the tilt angle of the lifting cage 13 is... 2°. Since the air nozzles 32 are only set in the four directions of due east, due south, due west, and due north in this embodiment, it is necessary to decompose the tilt angle into the due east and due north directions. The tilt angle in the due north direction is greater than that in the due east direction. Therefore, the opening degree of the air inlet five-way valve 34 and air outlet five-way valve 35 connected to the air nozzle 32 in the due north direction (or due south direction) should be greater than that of the air inlet five-way valve 34 and air outlet five-way valve 35 connected to the air nozzle 32 in the due east direction (or due west direction). The specific opening size can be calculated by formula, which will not be elaborated in this invention.
[0060] The beneficial effects of the technical solution provided by the present invention are as follows: By providing upward power to the hoisting cage 13 in the initial stage of the hoisting cage 13's ascent through the booster drive component 22, the force on the winch 15 and wire rope 14 in the initial stage of the hoisting cage 13's ascent can be reduced, thereby extending the service life of the winch 15 and wire rope 14 and reducing their failure frequency. At the same time, by measuring the tilt angle and tilt direction of the hoisting cage 13 through the level instrument 31, the air opposite to the swing trend of the hoisting cage 13 is drawn into the air compressor 33 through the air compressor 33, compressed, and then discharged to the same side of the swing trend of the hoisting cage 13 to hinder the swing of the hoisting cage 13. This can prevent the hoisting cage 13 from colliding with the shaft wall of the vertical shaft 200, and greatly improve the lateral stability of the hoisting cage 13 during the hoisting process.
[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.
Claims
1. A deep-well mine hoisting device, characterized in that, include: The main body of the hoisting device includes a derrick, a sheave, a hoisting cage, a wire rope, and a winch. The derrick is fixed to the ground. The sheave is rotatably mounted on the derrick and located above the vertical shaft. The wire rope is wound around the sheave. One end of the wire rope is fixedly connected to the hoisting cage, and the other end of the wire rope is fixed and wound around the winch's winch disc. A booster mechanism, comprising a booster plate and a booster drive component, wherein the booster plate is disposed at the bottom of the vertical shaft, and the booster drive component is connected to the booster plate and is used to drive the booster plate to move up and down; and, The balancing mechanism includes a level, several air nozzles, and an air compressor. The level is fixed to the lifting cage, and each of the air nozzles is arranged around the lifting cage. The air compressor is used to draw air from the opposite side of the lifting cage's swing tendency into the air compressor according to the tilt direction of the lifting cage measured by the level, compress it, and then discharge it to the same side of the lifting cage's swing tendency to hinder the swing of the lifting cage.
2. The deep-well mine hoisting device according to claim 1, characterized in that, The booster mechanism also includes a support block for supporting the booster plate.
3. The deep-well mine hoisting device according to claim 1, characterized in that, The booster drive component is a booster drive cylinder, which is connected to the booster plate and is used to drive the booster plate to rise and fall.
4. The deep-well mine hoisting device according to claim 1, characterized in that, The number of air nozzles is four, and the four air nozzles are respectively disposed on the four side walls of the lifting cage. The balancing mechanism also includes an inlet five-way valve and an outlet five-way valve. One port of the inlet five-way valve is connected to the inlet of the air compressor, and the other four ports of the inlet five-way valve are respectively connected to the four air nozzles. One port of the outlet five-way valve is connected to the outlet of the air compressor, and the other four ports of the outlet five-way valve are respectively connected to the four air nozzles.
5. The deep-well mine hoisting device according to claim 1, characterized in that, The deep well mine hoisting device also includes a clamping mechanism, which includes several wing plates and several first telescopic members. One end of each wing plate is hinged to the periphery of the hoisting cage, and one end of each first telescopic member is hinged to the periphery of the hoisting cage. The other end of each first telescopic member is hinged to the other end of the corresponding wing plate.
6. The deep-well mine hoisting device according to claim 5, characterized in that, The clamping mechanism also includes several friction elements, which are respectively fixed to the outer side of the corresponding wing plate, and the outer side of the friction element is an arc surface.
7. The deep-well mine hoisting device according to claim 1, characterized in that, It also includes a top support mechanism, which includes a top support plate and a second telescopic member. The top support plate is hinged to the wellhead of the shaft, and one end of the second telescopic member is hinged to the inner sidewall of the shaft. The other end of the second telescopic member is hinged to the top support plate. When the second telescopic member is at a first length, the top support plate is horizontally positioned and flush with the wellhead of the shaft. When the second telescopic member is at a second length, the top support plate is vertically positioned and fits against the sidewall of the shaft.
8. The deep-well mine hoisting device according to claim 7, characterized in that, The shaft has an inner wall with a receiving groove. When the second telescopic member is at its second length, the top support plate is vertically set and fits against the side wall of the shaft and is located in the receiving groove.
9. A method for hoisting deep-well mines, characterized in that, Applicable to the deep-well mine hoisting device as described in any one of claims 1-8, and comprising the following steps: S1. The hoisting cage is lowered to the bottom of the shaft by a winch until it contacts the booster plate. The heavy object to be hoisted is placed into the hoisting cage. Then, the hoisting cage is raised by the winch, and the booster plate is raised by the booster drive component until the booster drive component reaches its maximum stroke. After that, the winch continues to raise the hoisting cage until it reaches the shaft opening. The heavy object in the hoisting cage is then unloaded to the ground. S2. During the upward movement of the lifting cage, the tilt angle of the lifting cage is continuously measured using a level. When the tilt angle of the lifting cage is greater than the preset value, the inlet of the air compressor is connected to the air nozzle on the opposite side of the lifting cage's swing trend, and the outlet of the air compressor is connected to the air nozzle on the same side of the lifting cage's swing trend. The air compressor is started to draw air from the opposite side of the lifting cage's swing trend into the air compressor, compress it, and discharge it to the same side of the lifting cage's swing trend, thereby braking the swing trend of the lifting cage.
10. The deep-well mine hoisting method according to claim 9, characterized in that, The method for determining the swing tendency of the lifting cage is as follows: Obtain the tilt position and tilt angle of the lifting cage as measured by the level at time t; Obtain the tilt position and tilt angle of the lifting cage as measured by the level at time t+1; When the tilt angle of the lifting cage at time t+1 is greater than the preset angle, the tilt orientation of the lifting cage at time t and time t+1 is decomposed into the directions of the two closest air nozzles, and the tilt angles of the directions of the two closest air nozzles at time t and time t+1 are obtained respectively. Compare the tilt angles of the two closest nozzles at time t and time t+1. If the tilt angle at time t+1 is greater than the tilt angle at time t, it indicates that the swing trend direction is the same as the tilt direction. Connect the air compressor outlet to the two nozzles closest to the tilt direction, connect the air compressor inlet to the two nozzles on the opposite side, start the air compressor, and blow the airflow to the tilt direction to resist the swing trend. Conversely, if the tilt angle at time t+1 is less than the tilt angle at time t, it indicates that the oscillation trend is opposite to the tilt direction. Connect the air compressor inlet to the two nozzles closest to the tilt direction, connect the air compressor outlet to the two nozzles on the opposite side, start the air compressor, and blow the airflow to the opposite side of the tilt direction to hinder the oscillation trend.
Citation Information
Patent Citations
Stabilizing mechanism for hoisting shaft cage and stabilizing device
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