Mine double-car operation elevator traction device
By using a combination of tension balance beams, balance springs, and hydraulic dampers in the mine elevator, the problem of car swaying caused by changes in wire rope tension was solved, achieving smooth elevator operation and efficient transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-03
AI Technical Summary
When transporting heavy equipment, the tension of the wire rope in a mine double-car elevator changes greatly, causing the car to sway and affecting the smooth operation of the elevator.
The elevator employs a combination of tension balance beams, balance springs, and hydraulic dampers. By adjusting the direction and tension distribution of the wire ropes, friction is automatically regulated to ensure the elevator's stability.
It effectively suppresses car swaying caused by load changes, improves the elevator's smooth operation and transportation efficiency, and can transport more passengers at once during peak hours, relieving passenger flow pressure.
Smart Images
Figure CN224076888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of double-car elevator technology, and in particular to a traction device for a mine double-car elevator. Background Technology
[0002] The traction device for a double-car mine elevator is mainly used to drive two cars to move up and down safely and efficiently within the mine shaft. Because some mines have large construction areas, they are often divided into shallow mining layers, deep mining layers, production layers, and pedestrian and ventilation layers, etc. In such multi-level work sites, double-car elevators are needed to provide crucial support for personnel movement and material transportation within the mine, meeting the needs of large-scale personnel flow and frequent material transfers at different times, ensuring the smooth operation of mine production. Through precise control of the coordinated operation of components such as the traction machine and wire ropes, stable operation of the double cars under complex mine conditions is achieved. Currently, the traction device for a double-car mine elevator typically requires the following technologies in practical applications:
[0003] 1. It has a mechanical structure with high load-bearing capacity and stability to support the weight of the two cars and their loads, ensuring reliable support and drive in the vertical direction.
[0004] 2. A precise speed and position control system accurately regulates the running speed and stopping position of the two cars, preventing collisions between cars and between the cars and hoistway components.
[0005] 3. Reliable safety protection technologies, such as multiple braking devices and fall arrestors, can respond quickly in emergencies to ensure the safety of personnel and equipment.
[0006] 4. Protective technologies adapted to the harsh environment of mines, including good explosion-proof, moisture-proof, and dust-proof performance, to ensure normal operation of the equipment in environments containing flammable and explosive gases such as methane and coal dust, as well as humid and dusty environments.
[0007] Currently, various equipment and methods are employed to achieve efficient traction in dual-car mine elevators. Some designs use a traditional single-motor driven traction machine, connecting the two cars via a wire rope system, relying on the motor's forward and reverse rotation to raise and lower the cars. Other solutions employ independent dual-motor drives, with each car equipped with its own traction machine and wire rope, thereby enhancing independent control over the two cars. Additionally, some advanced designs incorporate magnetic levitation traction technology, utilizing magnetic force to achieve contactless car operation, reducing frictional losses and improving operating efficiency.
[0008] However, the above method has a prominent hardware structure problem: there are many heavy pieces of equipment at the mine construction site. When workers move the equipment, they often use elevators to transport it. However, the sudden entry of heavy equipment into the car will cause a large change in the tension of the wire rope in a short period of time. Existing devices usually lack tension buffering and adjustment functions. Large weight changes in a short period of time will cause the car to shake, thus affecting the smooth operation of the elevator. Utility Model Content
[0009] To address the shortcomings of existing technologies, this utility model provides a traction device for a mine double-car elevator. It solves the technical problem that mine construction sites often have a lot of heavy equipment, and workers often use elevators to transport the equipment. However, when heavy equipment suddenly enters the car, it causes a large change in the tension of the wire rope in a short period of time. Existing devices usually lack tension buffering and adjustment functions, and large weight changes in a short period of time can cause the car to shake, thus affecting the smooth operation of the elevator.
[0010] To achieve the above objectives, this utility model provides the following technical solution:
[0011] A traction device for a mine double-car elevator includes a traction chamber. A stabilizing mechanism for elevator operation is provided at the lower end of the traction chamber. The stabilizing mechanism includes two tension balance beams, two sets of tension rollers, two balance springs, and two sets of hydraulic dampers. Both tension balance beams are located at the lower end of the traction chamber. The two sets of tension rollers are rotatably connected inside the two tension balance beams. Both balance springs are fixedly connected to the upper end of the tension balance beams. Both sets of hydraulic dampers are located at the upper end of the tension balance beams. Two sets of balance beam mounting seats are rotatably connected to the lower end of the traction chamber, and the two tension balance beams are hinged inside the two sets of balance beam mounting seats.
[0012] Preferably, the upper end of the tension balance beam and the lower end of the traction chamber are both fixedly connected to two sets of U-shaped mounting brackets, and the two sets of hydraulic dampers are respectively rotatably connected inside the two sets of U-shaped mounting brackets.
[0013] Preferably, the traction chamber has two traction wheel mounting brackets fixedly connected inside, and each of the two traction wheel mounting brackets has a traction wheel body rotatably connected inside.
[0014] Preferably, a reducer is fixedly connected to the outer surface of each of the two traction sheave mounting frames, and an electric motor is fixedly connected to the outer surface of each of the two traction sheave mounting frames.
[0015] Preferably, the two reducers are each adapted to two electric motors, and a set of wire ropes is provided on the outer surface of each of the two traction sheaves.
[0016] Preferably, the two sets of wire ropes are respectively arranged on the outer surface of the two sets of tension rollers, and the lower ends of the two sets of wire ropes are respectively provided with counterweights.
[0017] Preferably, the lower ends of both sets of wire ropes, away from the two counterweights, are equipped with car bodies.
[0018] Preferably, the lower end of the traction chamber is fixedly connected to an elevator shaft, and both car bodies are slidably connected inside the elevator shaft.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] 1. Balance springs are symmetrically installed at both ends of the tension balance beam. One end of the balance spring is fixed to the tension balance beam, and the other end is fixed to the lower end of the traction chamber. When the load on the car body suddenly increases, causing a change in gravity, the tension of the wire rope changes and sways, causing the tension balance beam to swing, changing the position of the tension rollers, and adjusting the direction and tension distribution of the wire rope. At the same time, the balance springs automatically adjust their elasticity according to the swing amplitude of the tension balance beam, ensuring good friction between the traction chamber and the wire rope under different loads, avoiding swaying, shaking, or trajectory deviation of the car body due to uneven tension, and ensuring smooth elevator operation.
[0021] Second, two car bodies are set in the same elevator shaft, which can transport two groups of people or goods at the same time. During peak periods, such as the working hours in the mine, the car body may need to make multiple trips to transport all the people. However, the double car body type elevator can carry more passengers at once, greatly shorten the waiting time, improve the transportation capacity per unit time, and effectively alleviate the pressure of passenger flow. Attached Figure Description
[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a diagram showing the connection structure of the traction sheave body of this utility model;
[0025] Figure 3 This is a connection structure diagram of the balance beam mounting base of this utility model;
[0026] Figure 4 This is an exploded view of the tension balance beam connection of this utility model.
[0027] Legend: 11. Traction chamber; 12. Tension balance beam; 13. Tension roller; 14. Balance spring; 15. Hydraulic damper; 16. Balance beam mounting base; 17. U-shaped mounting bracket; 18. Traction sheave mounting bracket; 19. Traction sheave body; 21. Reducer; 22. Motor; 23. Wire rope; 24. Counterweight; 25. Car body; 26. Elevator shaft. Detailed Implementation
[0028] This application provides a traction device for a dual-car mine elevator, effectively addressing the problem of heavy equipment on mine construction sites. Workers often use elevators to transport this equipment, but the sudden entry of heavy equipment into the car causes significant short-term changes in the tension of the wire rope. Existing devices typically lack tension buffering and adjustment functions, and these large weight changes in a short time can cause car swaying, affecting the elevator's stable operation. The device uses symmetrically arranged balance springs at both ends of the tension balance beam, with one end fixed to the beam and the other to the lower end of the traction chamber. When the car's load suddenly increases, causing a change in gravity, the wire rope tension changes and sways, causing the tension balance beam to swing, altering the position of the tension rollers, and adjusting the wire rope's direction and tension distribution. Simultaneously, the balance springs automatically adjust their elasticity based on the swing amplitude of the tension balance beam, ensuring good friction between the traction chamber and the wire rope under different loads. This prevents the car from swaying, shaking, or deviating from its trajectory due to uneven tension, ensuring stable elevator operation.
[0029] Example
[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application effectively solves the problem that many heavy pieces of equipment exist at mine construction sites, and workers often use elevators to transport them. However, the sudden entry of heavy equipment into the car causes a large change in the tension of the wire rope in a short period of time. Existing devices usually lack tension buffering and adjustment functions, and large weight changes in a short period of time can cause the car to sway, thus affecting the smooth operation of the elevator. The overall idea is as follows: A traction device for a mine double-car elevator includes a traction chamber 11, and a stabilizing device for elevator operation is provided at the lower end of the traction chamber 11. The stabilizing mechanism includes two tension balance beams 12, two sets of tension rollers 13, two balance springs 14, and two sets of hydraulic dampers 15. Both tension balance beams 12 are located at the lower end of the traction chamber 11. The two sets of tension rollers 13 are rotatably connected inside the two tension balance beams 12. Both balance springs 14 are fixedly connected to the upper end of the tension balance beams 12. Both sets of hydraulic dampers 15 are located at the upper end of the tension balance beams 12. Two sets of balance beam mounting seats 16 are rotatably connected to the lower end of the traction chamber 11. The balance beam 12 is hinged inside two sets of balance beam mounting seats 16. Two sets of U-shaped mounting brackets 17 are fixedly connected to the upper end of the tension balance beam 12 and the lower end of the traction chamber 11. Two sets of hydraulic dampers 15 are rotatably connected inside the two sets of U-shaped mounting brackets 17. Two tension rollers 13 symmetrically mounted on the tension balance beam 12 ensure that the restoring force applied by the tension rollers 13 is evenly distributed on the tension balance beam 12, preventing tilting of the tension balance beam 12 during reset due to uneven force. Simultaneously, when the tension balance beam 12 swings, it will pull the output shaft of the hydraulic damper 15 to extend or retract. To adapt to the swing angle of the tension balance beam 12, the hydraulic damper 15 uses the viscous resistance of the liquid to consume vibration energy. When the tension balance beam 12 swings, it drives the piston of the hydraulic damper 15 to move in the hydraulic cylinder, causing the hydraulic oil to flow through the throttle orifice or gap, generating viscous resistance, thereby suppressing the swing of the tension balance beam 12. This effectively suppresses the large-amplitude swing of the tension balance beam 12 caused by the sudden change in tension of the wire rope 23. At the same time, the force of the resistance will prevent the balance spring 14 from resonating. The hydraulic damper 15 is connected at both ends by the U-shaped mounting bracket 17 to ensure the smooth extension and retraction of the piston.
[0031] Two traction sheave mounting brackets 18 are fixedly connected inside the traction chamber 11. Traction sheave bodies 19 are rotatably connected inside each of the two mounting brackets 18. Reducers 21 are fixedly connected to the outer surfaces of both mounting brackets 18, and motors 22 are also fixedly connected to their outer surfaces. The two reducers 21 are matched with the two motors 22. A set of wire ropes 23 is installed on the outer surface of each of the two traction sheave bodies 19. The two sets of wire ropes 23 are respectively installed on the outer surfaces of the two sets of tension rollers 13. Below the traction chamber 11, two transverse tension balance beams 12 are installed. These beams are hinged at both ends to balance beam mounting seats 16, which are rotatably connected to the traction chamber 11, allowing the tension balance beams 12 to swing laterally within a certain angle range. Rotatable tension rollers 13 are installed on the tension balance beams 12. Steel wire ropes 23 are wound around the surface of the traction sheave body 19, then sequentially pass over the surface of the tension balance beams 12, and finally connect to the car body 25 and the... The weight 24 has two balance springs 14 stacked around the center point of the tension balance beam 12 at both ends. One end of the spring is fixed to the tension balance beam 12, and the other end is fixedly connected to the lower end of the traction chamber 11. When the user carries heavy equipment into the car, or when too many people enter the car body 25 at once, the gravity changes rapidly, and the tension of the wire rope 23 will change accordingly, causing a slight sway. The wire rope 23 is wound around the surface of the tension roller 13. The swaying of the tension balance beam 12 drives the tension roller 13 to change its position, thereby adjusting the direction and tension distribution of the wire rope 23. At the same time, the balance springs 14 will automatically adjust their elasticity according to the swaying amplitude of the tension balance beam 12 to balance the tension change of the wire rope 23. This adaptive tension balancing mechanism can automatically adjust the tension of the wire rope 23 in real time, ensuring that the traction chamber 11 and the wire rope 23 always maintain good friction under different load conditions, improving the reliability and stability of the traction device.
[0032] The lower ends of the two sets of wire ropes 23 are respectively equipped with counterweights 24. The lower ends of the two sets of wire ropes 23 away from the two counterweights 24 are each equipped with a car body 25. The lower end of the traction chamber 11 is fixedly connected to the elevator shaft 26. The two car bodies 25 are slidably connected inside the elevator shaft 26. The traction sheave mounting frame 18, traction sheave body 19, reducer 21 and motor 22 installed in the traction chamber 11 together form the traction device. The motor 22 provides power, and the speed is reduced and the torque is increased by the reducer 21, so that the traction sheave body 19 rotates. The traction sheave mounting bracket 18 provides support for the traction sheave body 19, reducer 21, and motor 22. The traction chamber 11 includes a brake that engages the traction sheave body 19 when the elevator stops, ensuring the car body 25 remains safely stationary. Multiple steel wire ropes 23 are wound around the surface of the traction sheave body 19, with the two ends of each rope connected to the counterweight 24 and the car body 25, respectively. The elevator shaft 26 installed at the lower end of the traction chamber 11 provides space for the sliding displacement of the car body 25. Two car bodies 25 are installed in the same elevator shaft 26, allowing for the simultaneous transport of two groups of people or goods. During peak periods, such as working hours in a mine, the car body 25 may need to make multiple trips to transport all passengers. However, elevators with two car bodies 25 can carry more passengers at once, significantly reducing waiting time, increasing transport capacity per unit time, and effectively alleviating passenger flow pressure.
[0033] To address the problems existing in the prior art, this utility model provides a traction device for a mine double-car elevator. A balance spring 14 is symmetrically arranged at both ends of the tension balance beam 12. One end of the balance spring 14 is fixed to the tension balance beam 12, and the other end is fixed to the lower end of the traction chamber 11. When the load on the car body 25 suddenly increases, causing a change in gravity, the tension of the wire rope 23 changes and sways, causing the tension balance beam 12 to swing, changing the position of the tension roller 13, and adjusting the direction and tension distribution of the wire rope 23. Simultaneously, the balance spring 14 automatically adjusts its elasticity according to the swing amplitude of the tension balance beam 12, ensuring good friction between the traction chamber 11 and the wire rope 23 under different loads, preventing the car body 25 from swaying, shaking, or deviating from its trajectory due to uneven tension, and ensuring smooth elevator operation.
[0034] Working principle:
[0035] The first step involves the traction device consisting of the traction wheel mounting frame 18, the traction wheel body 19, the reducer 21, and the motor 22 installed in the traction chamber 11. The motor 22 provides power, and the reducer 21 reduces the speed and increases the torque, causing the traction wheel body 19 to rotate. The traction sheave mounting bracket 18 provides support for the traction sheave body 19, reducer 21, and motor 22. The traction chamber 11 includes a brake that engages the traction sheave body 19 when the elevator stops, ensuring the car body 25 remains safely stationary. Multiple steel wire ropes 23 are wound around the surface of the traction sheave body 19, with the two ends of each rope connected to the counterweight 24 and the car body 25, respectively. The elevator shaft 26 installed at the lower end of the traction chamber 11 provides space for the sliding displacement of the car body 25. Two car bodies 25 are installed in the same elevator shaft 26, allowing for the simultaneous transport of two groups of people or goods. During peak periods, such as working hours in a mine, the car body 25 may need to make multiple trips to transport all passengers. However, elevators with two car bodies 25 can carry more passengers at once, significantly reducing waiting time, increasing transport capacity per unit time, and effectively alleviating passenger flow pressure.
[0036] The second step involves installing two transverse tension balance beams 12 below the traction chamber 11. These beams are connected to the balance beam mounting base 16 at both ends via hinges, allowing the beams to rotatably swing laterally within a certain angle range. Rotatable tension rollers 13 are installed on the tension balance beams 12. The wire rope 23 is wound around the surface of the traction roller body 19, then sequentially passes over the surface of the tension balance beams 12, finally connecting to the car body 25 and the counterweight 24. Two weights are installed at both ends of the tension balance beams 12, centered on the center point of the beams 12. A balance spring 14 is installed, with one end fixed to the tension balance beam 12 and the other end fixedly connected to the lower end of the traction chamber 11. When a user carries heavy equipment into the car, or when too many people enter the car body 25 at once, the gravity changes rapidly, and the tension of the wire rope 23 changes accordingly, causing a slight sway. The wire rope 23 is wound around the surface of the tension roller 13, and the swaying of the tension balance beam 12 causes the tension roller 13 to change position, thereby adjusting the direction and tension distribution of the wire rope 23. At the same time, the balance spring 14 automatically adjusts according to the swaying amplitude of the tension balance beam 12. The elastic force is adjusted to balance the tension changes of the wire rope 23. This adaptive tension balancing mechanism can automatically adjust the tension of the wire rope 23 in real time, ensuring that the traction chamber 11 and the wire rope 23 maintain good friction under different load conditions, thus improving the reliability and stability of the traction device. The two tension rollers 13 symmetrically installed on the tension balance beam 12 ensure that the restoring force applied by the tension rollers 13 is evenly distributed on the tension balance beam 12, avoiding tilting of the tension balance beam 12 when it returns to its original position due to uneven force. At the same time, when the tension balance beam 12 swings, it will pull the hydraulic damper 15. The output shaft extends and retracts to adapt to the swing angle of the tension balance beam 12. The hydraulic damper 15 uses the viscous resistance of the liquid to consume vibration energy. When the tension balance beam 12 swings, it drives the piston of the hydraulic damper 15 to move in the hydraulic cylinder, causing the hydraulic oil to flow through the throttle orifice or gap, generating viscous resistance, thereby suppressing the swing of the tension balance beam 12. This effectively suppresses the large-amplitude swing of the tension balance beam 12 caused by the sudden change in tension of the wire rope 23. At the same time, the force of the resistance will prevent the balance spring 14 from resonating. The hydraulic damper 15 is connected at both ends by the U-shaped mounting bracket 17 to ensure the smooth extension and retraction of the piston.
[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. Mine double-car operating elevator hoisting device comprising a hoisting chamber (11), characterized in that, The traction chamber (11) is provided with a stable mechanism for elevator operation at the lower end, which comprises two tension balance beams (12), two sets of tension rollers (13), two balance springs (14) and two sets of hydraulic dampers (15), two tension balance beams (12) are arranged at the lower end of the traction chamber (11), two sets of tension rollers (13) are rotatably connected inside the two tension balance beams (12), two balance springs (14) are fixedly connected at the upper end of the tension balance beam (12), two balance springs (14) are fixedly connected at the lower end of the traction chamber (11), two sets of hydraulic dampers (15) are arranged at the upper end of the tension balance beam (12), and two sets of balance beam mounting seats (16) are rotatably connected at the lower end of the traction chamber (11). Wherein, two tension balance beams (12) are hinged inside two sets of balance beam mounting seats (16).
2. A mine double-car operating elevator hoisting arrangement as claimed in claim 1, characterized in that, The upper end of the tension balance beam (12) and the lower end of the traction chamber (11) are fixedly connected with two sets of U-shaped mounting racks (17). Wherein, two sets of hydraulic dampers (15) are rotatably connected inside two sets of U-shaped mounting racks (17).
3. A mine double-car operating elevator hoisting arrangement as claimed in claim 2, characterised in that, The inside of the traction chamber (11) is fixedly connected with two traction wheel mounting racks (18). Wherein, two traction wheel mounting racks (18) are rotatably connected with traction wheel bodies (19) inside.
4. A mine double-car operating elevator hoisting arrangement as claimed in claim 3, characterised in that, The outer surface of two traction wheel mounting racks (18) is fixedly connected with a speed reducer (21). Wherein, the outer surface of two traction wheel mounting racks (18) is fixedly connected with an electric motor (22).
5. A mine double-car operating elevator hoisting arrangement as claimed in claim 4, characterised in that, Two speed reducers (21) are respectively matched with two electric motors (22). Wherein, the outer surface of two traction wheel bodies (19) is provided with a set of steel wire ropes (23).
6. A mine double-car operating elevator hoisting arrangement as claimed in claim 5, characterised in that, Two sets of steel wire ropes (23) are arranged on the outer surface of two sets of tension rollers (13). Wherein, two sets of steel wire ropes (23) are provided with counterweights (24) at the lower end.
7. A mine double-car operating elevator hoisting arrangement as claimed in claim 6, characterized in that The lower end of two sets of steel wire ropes (23) is provided with a car body (25) away from one end of two counterweights (24).
8. A mine double-car operating elevator hoisting arrangement as claimed in claim 7, characterised in that, The lower end of the traction chamber (11) is fixedly connected with an elevator shaft (26). Wherein, two car bodies (25) are slidably connected inside the elevator shaft (26).