A fan elevator
By using flexible traction ropes and auxiliary ropes as tracks in the wind turbine elevator, combined with pressure sensors and limit switches, the safety hazards and space occupation problems of the wind turbine elevator when the wind turbine swings are solved, and the safety and efficiency are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SUZUKI ELEVATOR
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing fan elevators pose safety hazards when the fan swings, occupy a large space, and the connection parts are prone to deformation, leading to connection failure.
Flexible traction ropes and auxiliary ropes are used as tracks, eliminating the need for traditional rigid tracks. The traction engine drives the car to move stably, and pressure sensors and limit switches are provided to improve safety.
It effectively avoids connection failures and safety accidents caused by wind swaying of the fan, reduces space occupation, and improves safety and work efficiency.
Smart Images
Figure CN224530383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan elevator technology, and more specifically, to a fan elevator. Background Technology
[0002] With the vigorous development of new green energy, the installation and use of large wind turbines are increasing, making important contributions to low-carbon environmental protection, energy conservation and emission reduction.
[0003] Large wind turbines are typically installed outdoors, far from urban areas, with the overall height of the equipment exceeding 100 meters. Installation, maintenance, and regular upkeep require workers to operate at heights above 100 meters. The previous method involved installing ladders inside or outside the equipment, with workers climbing up the ladders from the ground to the highest point of the generator, blades, and other core components. This was not only physically demanding but also posed significant safety risks.
[0004] In recent years, with technological advancements, wind turbine elevators have been increasingly used in wind turbine equipment. Workers and their belongings use the elevators to perform maintenance or inspections on various parts of the wind turbine, making it a standard feature of new wind turbines. This has positive implications for improving work efficiency and ensuring the safety of personnel and equipment.
[0005] Under current technology, fan elevators generally follow the design concept of building elevators: using traction drive or forced drive, rigid guide shoes are installed within the limited space of the fan, and the car can rise and fall along a rigid track. With this technology, because the rigid guide rail and the fan structure require a rigid connection, when the fan swings (under wind force, the local swing amplitude can reach several meters), due to the large height, the stress on the connection points is uneven, and the track, welded or bolted connection points are prone to deformation, leading to connection failure and creating a significant safety hazard. Utility Model Content
[0006] Therefore, in order to solve the safety hazard of elevators when the fan swings, this utility model provides a fan elevator, the specific technical solution of which is as follows:
[0007] A fan-driven elevator includes an upper beam, a lower beam, a car, a traction rope, an auxiliary rope, a pair of traction wheels, and a traction unit. The traction rope is located on one side of the car and serves as the traction side, while the auxiliary rope is located on the other side of the car and serves as the auxiliary side. The two traction wheels are rotatably mounted on the upper beam and the lower beam, respectively. The traction rope is wound around both traction wheels. The traction rope is fixedly connected to the car on one side of each traction wheel and slidably connected to the car on the other side. The traction unit drives one of the traction wheels to rotate. The auxiliary rope enables the auxiliary side of the car to move stably and synchronously with the traction side of the car.
[0008] By adopting the above technical solution, after the staff and goods enter the car from the lower end of the fan, the traction host is started, driving one of the traction wheels to rotate. This drives the traction rope to rotate around the two traction wheels, and with the assistance of the auxiliary rope, the car moves steadily towards the upper end of the fan. During this process, if the fan swings, the use of the traction rope and auxiliary rope as the elevator track, which is a flexible track, provides a certain degree of mechanical freedom for the car's operation, effectively avoiding connection failures and safety accidents that may be caused by the fan swinging due to wind force. Furthermore, by eliminating the traditional rigid track setting, the space occupied is greatly reduced, and the limited space of the fan is arranged more rationally, further reducing safety risks.
[0009] Furthermore, it also includes a pair of first auxiliary wheels, which are rotatably mounted on the upper beam and the lower beam respectively. The auxiliary rope is wound around the two first auxiliary wheels. The auxiliary rope is fixedly connected to the car on one side of the first auxiliary wheel and slidably connected to the car on the other side of the first auxiliary wheel.
[0010] Furthermore, a load-bearing beam is provided on the upper beam, and the traction wheel and the first auxiliary wheel installed on the upper beam are rotatably mounted on the load-bearing beam. A first pressure sensor is provided between the load-bearing beam and the upper beam.
[0011] Furthermore, it also includes a second auxiliary wheel and a fastening assembly. The second auxiliary wheel is rotatably mounted on the lower beam, and the auxiliary rope is wound around the second auxiliary wheel. Both ends of the auxiliary rope are fixedly mounted to the upper beam through the fastening assembly. The auxiliary rope is slidably connected to the car on both sides of the second auxiliary wheel.
[0012] Furthermore, the fastening assembly includes a rope clamp and a rope end piece. Both ends of the auxiliary rope are locked by the rope clamp to form a locking part, and the locking part is fixedly installed on the upper beam by the rope end piece.
[0013] Furthermore, it also includes a second pressure sensor, a pair of first U-shaped fastening bolts, several sets of first fastening nuts, a mounting bracket, and a pad. The second pressure sensor is mounted on the upper beam, and the pad is mounted between the sensing position of the second pressure sensor and the upper beam. The two first U-shaped fastening bolts are horizontally spaced apart, with both ends of the first U-shaped fastening bolts passing through the upper beam and the second pressure sensor in sequence, and the two first U-shaped fastening bolts passing through the two ends of the second pressure sensor respectively. Each first U-shaped fastening bolt has a set of first fastening nuts threaded onto both ends, with the first fastening nuts located on the side of the second pressure sensor away from the upper beam. The mounting bracket is mounted on the bottom end of the two first U-shaped fastening bolts, and a traction wheel mounted on the upper beam is rotatably mounted on the mounting bracket.
[0014] Furthermore, the traction rope is fixedly connected to the car via a fixing component, and the fixing component is provided at both ends of the car in the vertical direction, corresponding to the position of the traction rope.
[0015] Furthermore, the fixing assembly includes a fixing frame, a second U-shaped fastening bolt, and two sets of second fastening nuts. The fixing frame is fixedly installed in the car. Both ends of the second U-shaped fastening bolt pass through the fixing frame. The traction rope is clamped between the second U-shaped fastening bolt and the fixing frame. The two sets of second fastening nuts are respectively threaded onto both ends of the second U-shaped fastening bolt. The second fastening nuts abut against the side of the fixing frame away from the traction rope.
[0016] Furthermore, guide shoes are provided at both ends of the car in the vertical direction and at the position corresponding to the side where the traction rope slides, and the side where the traction rope slides is slidably disposed inside the guide shoes.
[0017] Furthermore, it also includes a switch plate, an upper limit switch, a lower limit switch, and a controller. The switch plate is fixedly installed on the car. The upper limit switch is preset at the upper end position inside the fan, and the lower limit switch is preset at the lower end position inside the fan. The switch plate is used to touch the contact wheels of the upper limit switch and the lower limit switch. The upper limit switch and the lower limit switch are both signal connected to the controller, and the controller is connected to the traction main motor. Attached Figure Description
[0018] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.
[0019] Figure 1This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0020] Figure 2 This is a cross-sectional view of the fixing component structure of Embodiment 1 of this utility model;
[0021] Figure 3 This is a schematic diagram of the car ascending state in Embodiment 1 of this utility model;
[0022] Figure 4 This is a schematic diagram of the car descending state in Embodiment 1 of this utility model;
[0023] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;
[0024] Figure 6 This is a cross-sectional view of the connection structure between the first U-shaped fastening bolt and the second pressure sensor in Embodiment 2 of this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Upper beam; 11. Load-bearing beam; 12. First pressure sensor; 13. Elastic pad; 14. Second pressure sensor; 15. First U-shaped fastening bolt; 16. First fastening nut; 17. Mounting bracket; 18. Pad; 19. Spring; 2. Lower beam; 21. Traction main unit; 3. Car; 31. Traction side; 32. Auxiliary side; 33. Guide shoe; 34. Switch plate; 35. Upper limit switch; 36. Lower limit switch; 37. Controller; 4. Traction rope; 5. Auxiliary rope; 51. Rope clamp; 52. Rope end piece; 6. Traction wheel; 7. First auxiliary wheel; 8. Fixing assembly; 81. Fixing bracket; 82. Second U-shaped fastening bolt; 83. Second fastening nut; 9. Second auxiliary wheel. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.
[0031] Example 1
[0032] like Figure 1 As shown, a fan elevator according to one embodiment of this utility model includes an upper beam 1, a lower beam 2, a car 3, a traction rope 4, an auxiliary rope 5, a pair of traction wheels 6, and a traction main unit 21. The upper beam 1 is fixedly installed at the top inside the fan, and the lower beam 2 is fixedly installed at the bottom inside the fan. The traction rope 4 is a flexible steel rope located on one side of the car 3 and is the traction side 31. The auxiliary rope 5 is a steel wire rope located on the other side of the car 3 and is the auxiliary side 32. The two traction wheels 6 are rotatably installed on the upper beam 1 and the lower beam 2, respectively, and both traction wheels 6 correspond to the traction side 31. The traction rope 4 is wound around both traction wheels 6 simultaneously, and the traction rope 4 is connected to the car 3 on one side of the traction wheel 6. The car 3 is fixedly connected to the traction wheel 6 on the other side and slidably connected to the car 3. The traction host 21 is fixedly installed on the lower beam 2. The output shaft of the traction host 21 is fixedly connected to the rotating shaft of the traction wheel 6 installed on the lower beam 2, so that the traction rope 4 can drive the transmission around the two traction wheels 6, thereby driving the car 3 to move in the vertical direction. The auxiliary rope 5 is used to make the auxiliary side 32 of the car 3 move stably and synchronously with the traction side 31 of the car 3. Therefore, since the traction rope 4 is used as the main track and the auxiliary rope 5 is used as the auxiliary track, both of which are flexible tracks, a certain degree of mechanical freedom is provided for the operation of the car 3, effectively avoiding connection failure and safety accidents that may be caused by the oscillation of the fan due to wind force.
[0033] The fan elevator also includes a pair of first auxiliary wheels 7. The two first auxiliary wheels 7 are rotatably installed on the upper beam 1 and the lower beam 2 respectively. The auxiliary rope 5 is wound around the two first auxiliary wheels 7. The auxiliary rope 5 is fixedly connected to the car 3 on one side of the first auxiliary wheel 7 and slidably connected to the car 3 on the other side of the first auxiliary wheel 7, so as to achieve stable movement of the auxiliary car 3.
[0034] like Figure 1As shown, a load-bearing beam 11 is provided on the upper beam 1. The traction wheel 6 and the first auxiliary wheel 7 are rotatably mounted on the load-bearing beam 11. A first pressure sensor 12 is provided between the load-bearing beam 11 and the upper beam 1, and the sensing surface of the first pressure sensor 12 is in contact with the load-bearing beam 11. A pair of elastic pads 13 are provided between the load-bearing beam 11 and the upper beam 1, and the two elastic pads 13 are respectively located on both sides of the first pressure sensor 12. Thus, when the car 3 experiences excessive deviation, overload, or slack in the traction rope 4, the first pressure sensor 12 detects the pressure change and issues a fault alarm signal. After receiving the signal, the controller 37 will control the elevator to stop running, thereby improving safety.
[0035] like Figure 1 and Figure 2 As shown, the traction rope 4 is fixedly connected to the car 3 via a fixing component 8. The fixing component 8 is installed at both ends of the car 3 in the vertical direction, corresponding to the positions of the traction rope 4. The fixing component 8 includes a fixing frame 81, second U-shaped fastening bolts 82, and two sets of second fastening nuts 83. The fixing frame 81 is fixedly installed in the car 3. Multiple second U-shaped fastening bolts 82 are provided, spaced apart in the vertical direction. Both ends of each second U-shaped fastening bolt 82 are simultaneously horizontally inserted into the fixing frame 81. The traction rope 4 is engaged between the second U-shaped fastening bolt 82 and the fixing frame 81. Each second U-shaped fastening bolt 82 is provided with two sets of second fastening nuts 83, which are threaded onto both ends of the same second U-shaped fastening bolt 82. The second fastening nuts 83 abut against the side of the fixing frame 81 away from the traction rope 4. This achieves a stable and fixed connection between the traction rope 4 and the car 3.
[0036] Guide shoes 33 are provided at both ends of the car 3 in the vertical direction and at the position corresponding to the sliding side of the traction rope 4. The sliding side of the traction rope 4 is slidably disposed in the guide shoes 33, so that the sliding side of the traction rope 4 can slide stably between the sliding side of the traction rope 4 and the car 3.
[0037] The auxiliary rope 5 is also fixedly connected to the car 3 through the fixing component 8, which will not be described in detail here; the auxiliary rope 5 is also slidably connected to the car 3 through the guide shoe 33, which will not be described in detail here.
[0038] like Figure 3 and Figure 4As shown, the fan elevator also includes a switch plate 34, an upper limit switch 35, a lower limit switch 36, and a controller 37. The switch plate 34 is fixedly installed on the top of the car 3 outside and on the side close to the traction side 31. The upper limit switch 35 is preset to be installed at the upper end position inside the fan, and the lower limit switch 36 is preset to be installed at the lower end position inside the fan. The switch plate 34 is used to touch the contact wheels of the upper limit switch 35 and the lower limit switch 36, that is, the upper limit switch 35 and the lower limit switch 36 are on the moving path of the switch plate 34. The upper limit switch 35 and the lower limit switch 36 are both signal connected to the controller 37, and the controller 37 is electrically connected to the traction host 21. Figure 3 and Figure 4 In this context, X represents the elevator's operating range.
[0039] When the car 3 reaches the upper station position, the switch plate 34 on the car 3 touches the upper limit switch 35's contact wheel. The upper limit switch 35 activates and sends an electrical signal to the controller 37. The controller 37 starts the protection program, the elevator control system cuts off the power supply to the traction host 21, the brake loses power and resets, and the car 3 stops at the station position.
[0040] When the car 3 descends, the switch plate 34 on the car 3 disengages from the upper limit switch 35, the electrical contacts of the upper limit switch 35 are reset, the electrical connection is established, the control program of the controller 37 is interrupted, the elevator control system supplies power to the traction host 21, the brake is energized, the holding brake is released, and the elevator enters the operating condition.
[0041] The implementation principle of Embodiment 1 of this application is as follows: After the staff and items enter the car 3 from the lower end position of the fan, the traction host 21 is started, which drives the traction wheel 6 installed on the lower beam 2 to rotate, thereby driving the traction rope 4 to rotate around the two traction wheels 6. With the assistance of the auxiliary rope 5, the car 3 moves steadily towards the upper end position of the fan until the switch plate 34 touches the upper limit switch 35, and the car 3 brakes and stops at the upper end position of the fan. During this process, if the fan swings, since the traction rope 4 and the auxiliary rope 5 are used as elevator tracks, which are flexible tracks, a certain degree of mechanical freedom is provided for the operation of the car 3, effectively avoiding connection failure and safety accidents that may be caused by the fan swinging due to wind force.
[0042] Example 2
[0043] like Figure 5As shown, the difference between this embodiment and Embodiment 1 lies in the installation method of the auxiliary rope 5. The specific structure is as follows: The fan elevator also includes a second auxiliary wheel 9 and a fastening assembly. The second auxiliary wheel 9 is rotatably installed on the lower beam 2. The auxiliary rope 5 is wound around the second auxiliary wheel 9. Both ends of the auxiliary rope 5 are fixedly installed on the upper beam 1 through the fastening assembly. The auxiliary rope 5 is slidably connected to the car 3 on both sides of the second auxiliary wheel 9. The fastening assembly includes a rope clamp 51 and a rope end piece 52. Both ends of the auxiliary rope 5 are locked by the rope clamp 51 to form a locking part. The locking part is fixedly installed on the upper beam 1 through the rope end piece 52. The rope end piece 52 here is the elevator rope end piece 52, which is the prior art and will not be described in detail here.
[0044] like Figure 5 and Figure 6 As shown, the fan elevator also includes a second pressure sensor 14, a pair of first U-shaped fastening bolts 15, several sets of first fastening nuts 16, a mounting bracket 17, and a pad 18. The second pressure sensor 14 is mounted on the upper beam 1. The pad 18 is a steel flat washer, and it is installed between the sensing position of the second pressure sensor 14 and the upper beam 1. The two first U-shaped fastening bolts 15 are horizontally spaced apart, and both ends of the first U-shaped fastening bolts 15 are sequentially inserted from bottom to top into the upper beam 1 and the second pressure sensor 14. The two first U-shaped fastening bolts 15 are respectively inserted into the two ends of the second pressure sensor 14. Each first U-shaped fastening bolt 15 has a spring 19 sleeved on both ends. The bottom of the spring 19... The first U-shaped fastening bolt 15 is abutted against the side of the second pressure sensor 14 away from the upper beam 1. Each end of the first U-shaped fastening bolt 15 is threaded with a set of first fastening nuts 16. The first fastening nuts 16 are located on the side of the spring 19 away from the second pressure sensor 14, thus playing a buffering role. The mounting bracket 17 is installed at the bottom end of the two first U-shaped fastening bolts 15. A traction wheel 6 installed on the upper beam 1 is rotatably installed on the mounting bracket 17. Thus, when the car 3 experiences excessive deviation, overload, or slack in the traction rope 4, the second pressure sensor 14 detects the pressure change and issues a fault alarm signal. After receiving the signal, the controller 37 will control the elevator to stop running, improving safety.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A fan elevator, characterized in that, The system includes an upper beam, a lower beam, a car, a traction rope, an auxiliary rope, a pair of traction wheels, and a traction unit. The traction rope is located on one side of the car and serves as the traction side, while the auxiliary rope is located on the other side of the car and serves as the auxiliary side. The two traction wheels are rotatably mounted on the upper beam and the lower beam, respectively. The traction rope is wound around both traction wheels. The traction rope is fixedly connected to the car on one side of each traction wheel and slidably connected to the car on the other side. The traction unit drives one of the traction wheels to rotate. The auxiliary rope ensures that the auxiliary side of the car moves stably and synchronously with the traction side of the car.
2. The fan elevator according to claim 1, characterized in that, It also includes a pair of first auxiliary wheels, which are rotatably mounted on the upper beam and the lower beam respectively. The auxiliary rope is wound around the two first auxiliary wheels. The auxiliary rope is fixedly connected to the car on one side of the first auxiliary wheel and slidably connected to the car on the other side of the first auxiliary wheel.
3. A fan elevator according to claim 2, characterized in that, A load-bearing beam is provided on the upper beam. The traction wheel and the first auxiliary wheel installed on the upper beam are rotatably mounted on the load-bearing beam. A first pressure sensor is provided between the load-bearing beam and the upper beam.
4. A fan elevator according to claim 1, characterized in that, It also includes a second auxiliary wheel and a fastening assembly. The second auxiliary wheel is rotatably mounted on the lower beam, and the auxiliary rope is wound around the second auxiliary wheel. Both ends of the auxiliary rope are fixedly mounted to the upper beam by the fastening assembly. The auxiliary rope is slidably connected to the car on both sides of the second auxiliary wheel.
5. A fan elevator according to claim 4, characterized in that, The fastening assembly includes a rope clamp and a rope end piece. Both ends of the auxiliary rope are locked by the rope clamp to form a locking part, and the locking part is fixedly installed on the upper beam by the rope end piece.
6. A fan elevator according to claim 4, characterized in that, It also includes a second pressure sensor, a pair of first U-shaped fastening bolts, several sets of first fastening nuts, a mounting bracket, and a pad. The second pressure sensor is mounted on the upper beam, and the pad is mounted between the sensing position of the second pressure sensor and the upper beam. The two first U-shaped fastening bolts are horizontally spaced apart, with both ends of each first U-shaped fastening bolt passing through the upper beam and the second pressure sensor in sequence. The two first U-shaped fastening bolts are respectively mounted at both ends of the second pressure sensor. Each first U-shaped fastening bolt has a set of first fastening nuts threaded onto both ends, with the first fastening nuts located on the side of the second pressure sensor away from the upper beam. The mounting bracket is mounted on the bottom end of the two first U-shaped fastening bolts, and a traction wheel mounted on the upper beam is rotatably mounted on the mounting bracket.
7. A fan elevator according to claim 1, characterized in that, The traction rope is fixedly connected to the car via a fixing component, and the fixing component is provided at both ends of the car in the vertical direction, corresponding to the position of the traction rope.
8. A fan elevator according to claim 7, characterized in that, The fixing assembly includes a fixing frame, a second U-shaped fastening bolt, and two sets of second fastening nuts. The fixing frame is fixedly installed in the car. Both ends of the second U-shaped fastening bolt pass through the fixing frame. The traction rope is clamped between the second U-shaped fastening bolt and the fixing frame. The two sets of second fastening nuts are respectively threaded onto both ends of the second U-shaped fastening bolt. The second fastening nuts abut against the side of the fixing frame away from the traction rope.
9. A fan elevator according to claim 1, characterized in that, Guide shoes are provided at both ends of the car in the vertical direction and at the position corresponding to the side where the traction rope slides, and the side where the traction rope slides is slidably disposed inside the guide shoes.
10. A fan elevator according to claim 1, characterized in that, It also includes a switch plate, an upper limit switch, a lower limit switch, and a controller. The switch plate is fixedly installed on the car. The upper limit switch is preset at the upper end position inside the fan, and the lower limit switch is preset at the lower end position inside the fan. The switch plate is used to contact the contact wheels of the upper limit switch and the lower limit switch. The upper limit switch and the lower limit switch are both signal connected to the controller, and the controller is connected to the traction main motor.