Wind turbine tower internal lift

Abstract

The utility model discloses a wind driven generator tower drum inner lifting equipment, including tower drum inner lifting bin, hoist elevator, damping component and damping sliding component. Hoist elevator sets up at the top of wind driven generator tower drum, and its hoist cable is connected with tower drum inner lifting bin. Damping component includes optical axis fixed base, telescopic damper optical axis, telescopic damping spring and telescopic damping sleeve, and damping sliding component includes first sliding wheel connecting rod, second sliding wheel connecting rod, connecting rod damping tension spring and mobile gyro wheel. Through the setting of multiple damping components and damping sliding components, the continuous two -stage damping effect is realized, and the vibration and noise in the lifting process are effectively reduced, the operation stability and safety of tower drum inner lifting bin are improved, the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for wind power generation equipment, and more particularly to a lifting device inside the tower of a wind turbine generator. Background Technology

[0002] In the field of wind power generation, wind turbine towers are typically quite tall, requiring a reliable internal lifting system for convenient maintenance and repair. Existing lifting systems mostly employ simple hoisting methods, relying solely on hoisting cables to connect to the internal lifting cabin. This structure is prone to significant vibration and noise during lifting, affecting the stability and safety of the lifting cabin and also causing impact on the tower structure. Furthermore, existing equipment lacks effective vibration damping measures during lifting, leading to a shortened equipment lifespan and increased maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting device inside the tower of a wind turbine generator.

[0004] To achieve the above objectives, this utility model is implemented according to the following technical solution:

[0005] This utility model includes an internal lifting chamber, a hoisting elevator, a shock-absorbing component, and a shock-absorbing sliding component. The hoisting elevator is installed at the top of the wind turbine tower, and the hoisting cable of the hoisting elevator is connected to the internal lifting chamber. Multiple sets of the shock-absorbing component and the shock-absorbing sliding component are installed between the internal lifting chamber and the inner wall of the wind turbine tower.

[0006] Specifically, the upper end of the elevator cabin inside the tower is provided with elevator cabin lifting lugs, and the hoisting steel cable of the hoisting elevator is connected to the elevator cabin lifting lugs.

[0007] Furthermore, the vibration damping assembly includes an optical axis fixing seat, a telescopic vibration damper optical axis, a telescopic vibration damping spring, and a telescopic vibration damping sleeve. The optical axis fixing seat is fixedly connected to one side of the upper end of the lifting chamber inside the tower. One end of the telescopic vibration damper optical axis is fixedly connected to the optical axis fixing seat. The telescopic vibration damping sleeve is sleeved on the other end of the telescopic vibration damper optical axis. The telescopic vibration damping sleeve and the telescopic vibration damper optical axis are slidably connected. The telescopic vibration damping spring is disposed between the optical axis fixing seat and the telescopic vibration damping sleeve. The other end of the telescopic vibration damping sleeve is connected to the vibration damping sliding assembly.

[0008] The lifting chamber inside the tower is equipped with a sleeve sliding bracket, which is slidably connected to the telescopic shock-absorbing sleeve.

[0009] The shock-absorbing sliding assembly includes a first sliding wheel connecting rod, a second sliding wheel connecting rod, a connecting rod shock-absorbing tension spring, and a movable roller. One end of the first sliding wheel connecting rod and one end of the second sliding wheel connecting rod are rotatably connected to one end of the telescopic shock-absorbing sleeve. The other end of the first sliding wheel connecting rod and the second sliding wheel connecting rod are each provided with a movable roller. The movable roller is rotatably connected to the first sliding wheel connecting rod and the second sliding wheel connecting rod. The connecting rod shock-absorbing tension spring is provided between the middle sections of the first sliding wheel connecting rod and the second sliding wheel connecting rod.

[0010] Preferably, the shock-absorbing component and the shock-absorbing sliding component constitute a set of shock-absorbing sliding devices. There are multiple sets of shock-absorbing sliding devices, which are respectively arranged between the upper and lower ends of the elevator box inside the tower and the inner wall of the wind turbine tower.

[0011] The multiple sets of shock-absorbing sliding devices at the upper and lower ends of the elevator box inside the tower are arranged in an alternating manner.

[0012] The beneficial effects of this utility model are:

[0013] This invention relates to a lifting device inside a wind turbine tower. Compared with existing technologies, this invention effectively reduces vibration and noise during the lifting process by incorporating multiple sets of shock-absorbing components and shock-absorbing sliding components, thereby improving the operational stability and safety of the lifting cabin inside the tower. The telescopic shock-absorbing springs and telescopic shock-absorbing sleeves in the shock-absorbing components buffer vertical vibrations of the lifting cabin, while the connecting rod shock-absorbing tension springs and moving rollers in the shock-absorbing sliding components suppress horizontal vibrations, forming a continuous two-stage shock absorption effect. Furthermore, the multiple sets of shock-absorbing sliding devices at the upper and lower ends of the lifting cabin inside the tower are staggered in relative positions, further enhancing the stability of the lifting cabin. This invention has a simple structure, is easy to install, and can significantly extend the service life of the equipment while reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0016] Figure 3 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of this utility model;

[0018] In the diagram: 1. Wind turbine tower; 2. Elevating chamber inside the tower; 3. Lifting lug of the elevating chamber; 4. Optical axis fixing seat; 5. Optical axis of the telescopic shock absorber; 6. Telescopic shock absorber spring; 7. Sleeve sliding bracket; 8. Telescopic shock absorber sleeve; 9. First sliding wheel connecting rod; 10. Second sliding wheel connecting rod; 11. Connecting rod shock absorber tension spring; 12. Moving roller. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0020] like Figure 1-4 As shown: This utility model includes an internal tower lifting chamber 2, a hoisting elevator, a shock-absorbing component, and a shock-absorbing sliding component. The hoisting elevator is installed at the top of the wind turbine tower 1. The hoisting cable of the hoisting elevator is connected to the internal tower lifting chamber 2. Multiple sets of the shock-absorbing component and the shock-absorbing sliding component are installed between the internal tower lifting chamber 2 and the inner wall of the wind turbine tower 1.

[0021] Specifically, the upper end of the elevator chamber 2 inside the tower is provided with an elevator chamber lifting lug 3, and the hoisting steel cable of the hoisting elevator is connected to the elevator chamber lifting lug 3.

[0022] Furthermore, the shock absorption assembly includes an optical axis fixing seat 4, a telescopic shock absorber optical axis 5, a telescopic shock absorption spring 6, and a telescopic shock absorption sleeve 8. The optical axis fixing seat 4 is fixedly connected to one side of the upper end of the lifting chamber 2 inside the tower. One end of the telescopic shock absorber optical axis 5 is fixedly connected to the optical axis fixing seat 4. The telescopic shock absorption sleeve 8 is sleeved on the other end of the telescopic shock absorber optical axis 5 and is slidably connected to the telescopic shock absorber optical axis 5. The telescopic shock absorption spring 6 is disposed between the optical axis fixing seat 4 and the telescopic shock absorption sleeve 8. The other end of the telescopic shock absorption sleeve 8 is connected to the shock absorption sliding assembly.

[0023] The tower internal lifting chamber 2 is equipped with a sleeve sliding bracket 7, which is slidably connected to the telescopic shock-absorbing sleeve 8.

[0024] The shock-absorbing sliding assembly includes a first sliding wheel link 9, a second sliding wheel link 10, a link shock-absorbing tension spring 11, and a movable roller 12. One end of the first sliding wheel link 9 and one end of the second sliding wheel link 10 are rotatably connected to one end of the telescopic shock-absorbing sleeve 8. The other end of the first sliding wheel link 9 and the second sliding wheel link 10 are each provided with a movable roller 12. The movable roller 12 is rotatably connected to the first sliding wheel link 9 and the second sliding wheel link 10. The link shock-absorbing tension spring 11 is provided between the middle sections of the first sliding wheel link 9 and the second sliding wheel link 10.

[0025] Preferably, the shock-absorbing component and the shock-absorbing sliding component constitute a set of shock-absorbing sliding devices. There are multiple sets of shock-absorbing sliding devices, which are respectively arranged between the upper and lower ends of the inner lifting chamber 2 of the tower and the inner wall of the wind turbine tower 1.

[0026] The multiple sets of shock-absorbing sliding devices at the upper and lower ends of the elevator chamber 2 inside the tower are arranged in an alternating manner.

[0027] The working principle of this utility model is as follows:

[0028] The hoisting machine of this utility model is not shown in the figure. The hoisting machine is existing technology, such as winch hoists and elevator hoists. It is installed on the top of the wind turbine tower 1. The hoisting line is connected to the hoisting lug 3 of the hoisting cabin to lift the hoisting cabin 2 inside the wind turbine tower 1. In order to ensure the smooth operation of the hoisting cabin 2 inside the tower, the moving rollers 12 are installed on the hoisting cabin 2 to slide on the inner wall of the wind turbine tower 1. A connecting rod damping tension spring 11 is set between the first sliding wheel connecting rod 9 and the second sliding wheel connecting rod 10. The first vibration damping is formed between the moving roller 12 and the lifting chamber 2 inside the tower. The design of the first sliding wheel connecting rod 9 and the second sliding wheel connecting rod 10 increases the contact area and provides triangular stability, thus improving the stability effect. In addition, the connecting rod damping tension spring 11 also plays a role in damping. Secondly, the telescopic damping sleeve 8 is slidably connected to the telescopic damper optical shaft 5, and the telescopic damping spring 6 plays a role in damping. Thus, a continuous two-stage damping is formed, which not only ensures the lifting stability of the lifting chamber 2 inside the tower, but also reduces noise and vibration.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting device inside a wind turbine tower, characterized in that: The system includes an internal lifting chamber (2), a hoisting elevator, a shock-absorbing assembly, and a shock-absorbing sliding assembly. The hoisting elevator is located at the top of the wind turbine tower (1). The hoisting cable of the hoisting elevator is connected to the internal lifting chamber (2). Multiple sets of the shock-absorbing assembly and the shock-absorbing sliding assembly are installed between the internal lifting chamber (2) and the inner wall of the wind turbine tower (1).

2. The lifting device inside the wind turbine tower according to claim 1, characterized in that: The upper end of the elevator box (2) inside the tower is provided with an elevator box lug (3), and the hoisting steel cable of the hoisting elevator is connected to the elevator box lug (3).

3. The lifting device inside the wind turbine tower according to claim 1, characterized in that: The shock absorption assembly includes an optical axis fixing seat (4), a telescopic shock absorber optical axis (5), a telescopic shock absorber spring (6), and a telescopic shock absorber sleeve (8). The optical axis fixing seat (4) is fixedly connected to one side of the upper end of the lifting chamber (2) inside the tower. One end of the telescopic shock absorber optical axis (5) is fixedly connected to the optical axis fixing seat (4). The telescopic shock absorber sleeve (8) is sleeved on the other end of the telescopic shock absorber optical axis (5). The telescopic shock absorber sleeve (8) and the telescopic shock absorber optical axis (5) are slidably connected. The telescopic shock absorber spring (6) is disposed between the optical axis fixing seat (4) and the telescopic shock absorber sleeve (8). The other end of the telescopic shock absorber sleeve (8) is connected to the shock absorption sliding assembly.

4. The lifting device inside the wind turbine tower according to claim 3, characterized in that: The tower inner lifting chamber (2) is provided with a sleeve sliding bracket (7), which is slidably connected to the telescopic shock-absorbing sleeve (8).

5. The lifting device inside the wind turbine tower according to claim 3, characterized in that: The shock-absorbing sliding assembly includes a first sliding wheel link (9), a second sliding wheel link (10), a link shock-absorbing tension spring (11), and a movable roller (12). One end of the first sliding wheel link (9) and one end of the second sliding wheel link (10) are rotatably connected to one end of the telescopic shock-absorbing sleeve (8). The other end of the first sliding wheel link (9) and the second sliding wheel link (10) are each provided with a movable roller (12). The movable roller (12) is rotatably connected to the first sliding wheel link (9) and the second sliding wheel link (10). The link shock-absorbing tension spring (11) is provided between the middle sections of the first sliding wheel link (9) and the second sliding wheel link (10).

6. The lifting device inside the wind turbine tower according to claim 1, characterized in that: The shock-absorbing component and the shock-absorbing sliding component constitute a set of shock-absorbing sliding devices. There are multiple sets of shock-absorbing sliding devices, which are respectively set between the upper and lower ends of the inner lifting chamber (2) of the tower and the inner wall of the wind turbine tower (1).

7. The lifting device inside the wind turbine tower according to claim 6, characterized in that: The multiple sets of shock-absorbing sliding devices at the upper and lower ends of the elevator box (2) inside the tower are arranged in an alternating manner.

Images