Power assisting device for climbing wind turbine generator tower drum

Abstract

The utility model relates to the technical field of climbing assisting devices, in particular to a wind turbine generator tower tube climbing assisting device which comprises a vertical ladder installed on the inner wall of a tower tube, a guide supporting assembly is arranged on the vertical ladder and comprises two rectangular vertical tubes, and a plurality of U-shaped hanging plates which are arranged up and down at equal intervals are arranged on the rear sides of the rectangular vertical tubes. The U-shaped hanging plate is arranged on the outer side of a stepping stick of the vertical ladder in a sleeving mode, the two rectangular vertical pipes are jointly connected with a lifting assembly, two traction safety ropes are arranged on the lifting assembly, and movable parts are arranged at the bottom ends of the two traction safety ropes. According to the power assisting device for climbing the tower drum of the wind turbine generator system, stress of the rectangular vertical pipe is uniformly dispersed to the treading sticks of the vertical ladder through a plurality of U-shaped hanging plates in the guide supporting assembly, the problem that in the prior art, a traction system only depends on two treading sticks at the top of the vertical ladder for supporting is effectively solved, and the situation that the treading sticks are bent or broken due to concentrated stress is avoided; therefore, the safety and the service life of the device are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of climbing aid device, concretely is wind turbine tower climbing aid device. BACKGROUND

[0002] The wind turbine tower is an important component of the wind turbine generator unit and is a key structure for supporting the wind turbine generator unit and its blades. The tower is usually cylindrical or conical, and its height varies according to the design requirements of the specific wind turbine generator unit, generally reaching tens of meters to hundreds of meters. The tower is usually provided with a vertical ladder inside for routine inspection, maintenance and repair work by maintenance personnel. Due to the large height of the wind turbine tower, the climbing work of the vertical ladder requires higher physical strength and safety of the maintenance personnel.

[0003] In order to solve the problem of physical consumption of maintenance personnel during climbing, a climbing aid device is widely used in the prior art. This device generally includes a top wheel device, a traction rope, a drive host and an electric control box. Specifically, the top wheel device is usually installed between the two tread bars at the top of the vertical ladder to guide the movement of the traction rope; the joint part of the traction rope is connected with the safety belt of the climber, providing traction force for the climber when the climber works; the drive host is the core component of power supply, generally installed between the first tread bar and the second tread bar at the lower end of the vertical ladder, and located at the middle position of the ladder; the electric control box is responsible for controlling the operation of the climber, which can be placed on the platform inside the tower or fixed on the ladder when in use, and connected with the drive host through the cable plug.

[0004] However, the existing climbing aid device still has some problems to be solved. Since the traction rope is located in the middle of the vertical ladder and only one traction joint connects the safety belt of the climber, the single-point traction mode may cause unstable posture of the climber when the aid system works, increasing the operation difficulty. In addition, the top wheel device needs to bear a large traction force, and it is only supported by the two tread bars at the top of the vertical ladder, which may cause deformation or even breakage of the tread bar after long-term use, thus causing safety accidents. In view of this, we propose a wind turbine tower climbing aid device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a wind turbine tower climbing aid device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The wind turbine tower climbing aid device comprises a vertical ladder installed on the inner wall of the tower, which provides a climbing channel for the maintenance personnel and serves as the installation foundation structure of the device, a guide support assembly is arranged on the vertical ladder, the guide support assembly comprises two rectangular vertical pipes arranged in a left-right symmetrical manner, the rectangular vertical pipes provide sliding guide support for the traction safety rope and the movable piece, a plurality of U-shaped hanging plates are arranged on the rear side of the rectangular vertical pipes in an up-down equidistant manner, the U-shaped hanging plates are arranged on the outer side of the rungs of the vertical ladder, the stress of the rectangular vertical pipes is dispersed to each rung through the plurality of U-shaped hanging plates, the bending or breaking of the rungs is effectively avoided, and thus the safety and service life of the structure are improved;

[0008] Two rectangular vertical pipes are connected with a lifting assembly, the lifting assembly provides traction power for the device, and helps the maintenance personnel to complete the climbing work more easily, the lifting assembly comprises two L-shaped supports arranged in a left-right symmetrical manner, which are used for supporting the driving mechanism and the transmission structure for realizing the lifting work, a rotating rod is rotatably connected between the two L-shaped supports, the rotating rod provides rotating support for the winding reel, winding reels are arranged on the outer wall of the rotating rod and close to the left and right ends, and the winding reels are used for winding the traction safety rope to provide safe traction force for the climber;

[0009] Two winding reels are wound with the traction safety rope, the bottom ends of the two traction safety ropes are provided with movable pieces, and the two movable pieces are arranged in a left-right symmetrical manner, the movable pieces provide two safe connection points for the workers to improve the stability and safety during climbing;

[0010] The movable piece comprises a rectangular sliding block slidably connected in the rectangular vertical pipe, the rectangular sliding block slides in the rectangular vertical pipe to provide guide support for the movement of the traction safety rope, opposite sides of the rectangular sliding block of the two movable pieces are provided with connecting rods, opposite ends of the two connecting rods are provided with safety hanging rings, the safety hanging rings are used for being connected with the safety equipment worn by the workers to ensure the safety of the workers during climbing;

[0011] A top plate is arranged between the two L-shaped supports and at the top position, the top plate provides support for the driving device of the lifting assembly, a driving motor is arranged at the top of the top plate, the driving motor drives the operation of the traction safety rope through output power, is operated by an external power supply, and is operated by a wireless controller, so that the workers can adjust the traction speed of the driving motor in real time according to actual needs, and thus more flexible traction aid is provided;

[0012] The output shaft of the driving motor penetrates through the top of the top plate and is coaxially connected with a worm, a worm wheel is arranged on the outer wall of the rotating rod and engages with the worm for transmission, the worm is driven to rotate by the driving motor, the worm drives the worm wheel to rotate, and the rotating rod is driven to rotate by the rotation of the worm wheel, so that the traction operation of the winding reel is realized.

[0013] Preferably, the opposite sides of the two rectangular vertical pipes are provided with strip-shaped openings, and the connecting rods pass through the strip-shaped openings, which provide space for the connecting rods to pass through.

[0014] Preferably, the front side of the U-shaped hanging plate is threadedly connected with a compression bolt, the threaded end of the compression bolt abuts against the front side of the vertical ladder step stick, for further fixing the rectangular vertical pipe and enhancing the stability of the device to prevent shaking during operation.

[0015] Preferably, the two L-shaped supports are respectively located at the top of the opposite sides of the two rectangular vertical pipes.

[0016] Preferably, the top of the rectangular sliding block is provided with a lifting ring, which is connected with the bottom end of the traction safety rope, for transmitting traction force.

[0017] Preferably, the front and rear sides of the rectangular sliding block are provided with U-shaped grooves, and the left and right sides of the inner walls of the U-shaped grooves are rotatably connected with rollers, the outer walls of the rollers are in contact with the inner walls of the rectangular vertical pipes, and the rollers are used for reducing the frictional resistance of the rectangular sliding block during sliding, improving the stability and efficiency of sliding.

[0018] Preferably, the bottom of the top plate is provided with an L-shaped supporting plate, and the bottom end of the worm is rotatably connected to the bottom of the inner wall of the L-shaped supporting plate, the L-shaped supporting plate provides support for the bottom end of the worm, and ensures the stability of the worm during transmission operation.

[0019] Compared with the prior art, the device has the following beneficial effects:

[0020] 1. The wind turbine tower climbing assisting device can evenly distribute the stress of the rectangular vertical pipe to each step stick of the vertical ladder through the multiple U-shaped hanging plates in the guiding and supporting assembly, effectively avoids the problem that the traction system only relies on the support of the two step sticks at the top of the vertical ladder in the prior art, avoids the bending or breaking of the step stick due to concentrated stress, and significantly improves the safety and service life of the device.

[0021] 2. The wind turbine tower climbing assisting device is provided with two safety hanging rings in the bottom end movable part, and the two safety hanging rings provide two safety connection points for the workers, replace the single-point traction mode in the prior art, and effectively improve the posture stability of the climber and reduce the operation difficulty, and further improve the safety during climbing.

[0022] 3. The wind turbine tower climbing assisting device is designed by the U-shaped hanging plate and the compression bolt, the device can be firmly connected with the vertical ladder, the compression bolt further fixes the rectangular vertical pipe during operation, ensures that the device does not shake or loosen during traction, and makes the lifting process more stable and reliable.

[0023] 4. The wind turbine tower climbing assisting device, the double guide rail design of the rectangular vertical pipe provides sliding guide rail support for the movable part, avoids the instability phenomenon caused by the exposed suspension of the middle part of the traction rope in the prior art, and enhances the carrying capacity and safety performance of the device, and is suitable for higher tower climbing operation requirements. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of part of the structure of the utility model;

[0026] Figure 3 It is a schematic diagram of part of the structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the lifting assembly structure in the utility model;

[0028] In the figure: 1, vertical ladder; 2, guide support assembly; 20, rectangular vertical pipe; 200, strip-shaped opening; 21, U-shaped hanging plate; 22, compression bolt; 3, lifting assembly; 30, L-shaped support; 31, rotating rod; 32, winding disc; 33, top plate; 34, driving motor; 35, worm; 36, worm wheel; 37, L-shaped supporting plate; 4, traction safety rope; 5, movable part; 50, rectangular sliding block; 500, U-shaped groove; 51, connecting rod; 52, safety hanging ring; 53, lifting ring; 54, roller. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0031] Please refer to Figures 1-4This utility model provides a technical solution:

[0032] The wind turbine tower climbing assistance device includes a vertical ladder 1 installed on the inner wall of the tower. The vertical ladder 1 provides a climbing passage for maintenance personnel and also serves as the basic structure for the installation of the device. The vertical ladder 1 is equipped with a guide support assembly 2, which includes two rectangular vertical tubes 20 arranged symmetrically on the left and right. The rectangular vertical tubes 20 provide sliding guide rail support for the traction safety rope 4 and the movable part 5. The rear side of the rectangular vertical tubes 20 is provided with multiple U-shaped hanging plates 21 arranged vertically at equal intervals. The U-shaped hanging plates 21 are sleeved on the outside of the treads of the vertical ladder 1. The force of the rectangular vertical tubes 20 is distributed to each tread through the multiple U-shaped hanging plates 21, which effectively prevents the treads from bending or breaking, thereby improving the safety and service life of the structure.

[0033] Two rectangular vertical tubes 20 are connected to a lifting assembly 3. The lifting assembly 3 provides traction power to the device, helping maintenance personnel to complete climbing operations more easily. The lifting assembly 3 includes two L-shaped supports 30 arranged symmetrically on the left and right sides, which are used to support the drive mechanism and the transmission structure to realize the lifting operation. A rotating rod 31 is rotatably connected between the two L-shaped supports 30. The rotating rod 31 provides rotational support for the winding reel 32. The outer wall of the rotating rod 31 and near the left and right ends are provided with winding reels 32. The winding reels 32 are used to wind the traction safety rope 4 to provide safe traction for the climbers.

[0034] Both winding reels 32 are wound with traction safety ropes 4, and the bottom ends of both traction safety ropes 4 are provided with movable parts 5. The two movable parts 5 are arranged symmetrically on the left and right. The movable parts 5 provide two safe connection points for the workers, improving the stability and safety of the workers when climbing.

[0035] The movable component 5 includes a rectangular slider 50 that is slidably connected inside the rectangular vertical tube 20. The rectangular slider 50 slides inside the rectangular vertical tube 20 to provide guidance and support for the movement of the traction safety rope 4. The opposite sides of the rectangular sliders 50 of the two movable components 5 are provided with connecting rods 51, and the opposite ends of the two connecting rods 51 are provided with safety hanging rings 52. The safety hanging rings 52 are used to connect with the safety equipment worn by the staff to ensure the safety of the staff during the climbing process.

[0036] A top plate 33 is provided between the two L-shaped brackets 30 and at the top. The top plate 33 provides support for the drive device of the lifting component 3. A drive motor 34 is provided on the top of the top plate 33. The drive motor 34 drives the traction safety rope 4 by outputting power. It is powered by an external power source and operated by a wireless controller, which allows the staff to adjust the traction speed of the drive motor 34 in real time according to actual needs, thereby providing more flexible traction assistance.

[0037] The output shaft of the driving motor 34 penetrates the top of the top plate 33 and is coaxially connected with a worm 35, the outer wall of the rotating rod 31 is provided with a worm gear 36 which is in meshing transmission with the worm 35, the worm 35 is driven to rotate by the driving motor 34, the worm 35 drives the worm gear 36 to rotate, the rotating rod 31 is driven to rotate by the rotation of the worm gear 36, thereby realizing the traction operation of the winding reel 32.

[0038] In the embodiment, the opposite sides of the two rectangular vertical pipes 20 are provided with strip-shaped openings 200, and the connecting rods 51 pass through the strip-shaped openings 200, and the strip-shaped openings 200 provide space for the connecting rods 51 to pass through.

[0039] Specifically, the front side of the U-shaped hanging plate 21 is threadedly connected with a pressing bolt 22, the threaded end of the pressing bolt 22 abuts against the front side of the step bar of the vertical ladder 1, and is used for further fixing the rectangular vertical pipe 20 and enhancing the stability of the device to prevent shaking during operation.

[0040] Further, the two L-shaped supports 30 are respectively located at the top of the opposite sides of the two rectangular vertical pipes 20.

[0041] Further, the top of the rectangular sliding block 50 is provided with a lifting ring 53 which is connected with the bottom end of the traction safety rope 4 and is used for transmitting traction force.

[0042] Further, the front and rear sides of the rectangular sliding block 50 are provided with U-shaped grooves 500, and the left and right sides of the inner wall of the U-shaped grooves 500 are rotatably connected with rollers 54, the outer wall of the roller 54 is in contact with the inner wall of the rectangular vertical pipe 20, and the roller 54 is used for reducing the frictional resistance in the sliding process of the rectangular sliding block 50 and improving the stability and efficiency of sliding.

[0043] Further, the bottom of the top plate 33 is provided with an L-shaped supporting plate 37, the bottom end of the worm 35 is rotatably connected to the bottom of the inner wall of the L-shaped supporting plate 37, the L-shaped supporting plate 37 provides support for the bottom end of the worm 35, and ensures the stability of the worm 35 during transmission operation.

[0044] When the wind turbine tower climbing assisting device of the embodiment is used, first, the device is installed on the vertical ladder 1 of the inner wall of the tower, the U-shaped hanging plate 21 and the pressing bolt 22 of the guiding and supporting assembly 2 are used to firmly fix the rectangular vertical pipe 20 on the step bar of the vertical ladder 1, and the stability and safety of the device are ensured, then, it is checked whether all parts of the lifting assembly 3 are installed perfectly, including the L-shaped support 30, the rotating rod 31, the winding reel 32 and the traction safety rope 4, and it is ensured that all connections are firm and correct, after installation is completed, the worker wears safety equipment, and connects the safety hanging ring 52 on the movable part 5 with the safety equipment, it is ensured that the safety hanging ring 52 can be firmly connected with the connecting rod 51, and the connecting rod 51 freely passes through the strip-shaped opening 200 of the rectangular vertical pipe 20, so as to ensure that the movable part 5 can normally slide in the rectangular vertical pipe 20.

[0045] Before the device is put into operation, the drive motor 34 is started by the wireless controller, and the traction speed of the drive motor 34 is adjusted according to the actual climbing needs. After the drive motor 34 is started, its output shaft drives the worm 35 to rotate. The worm 35 drives the rotating rod 31 to rotate through the meshing with the worm wheel 36, thereby driving the winding disc 32 to rotate. The rotation of the winding disc 32 will pull the traction safety rope 4, providing vertical assistance to the workers. When climbing, the workers can obtain stable traction through the movable part 5 connected to the traction safety rope 4. The rectangular slider 50 in the movable part 5 will slide smoothly in the rectangular vertical tube 20. During the sliding process, the roller 54 contacts the inner wall of the rectangular vertical tube 20, which can effectively reduce friction and make the sliding smoother.

[0046] During the climb, workers can flexibly adjust the traction speed using a wireless controller. For example, when it is necessary to increase the climbing speed, the output power of the drive motor 34 can be increased; if it is necessary to stop or pause, the drive motor 34 can be turned off. The multi-point traction method designed by the device provides workers with dual safety connection points through two traction safety ropes 4 and two movable parts 5, effectively improving the stability and safety of the climb. After reaching the work platform, workers can turn off the device through the controller to stop the winding reel 32 from operating, and then disconnect the safety equipment from the movable parts 5 to restore the device to its initial state. Through this device, maintenance personnel can complete the inspection or maintenance work inside the tower more efficiently and safely, while reducing physical exertion and improving work efficiency and safety.

[0047] 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 preferred examples and are not intended to limit the 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 wind turbine tower climbing assistance device, comprising a vertical ladder (1) installed on the inner wall of the tower, characterized in that: The vertical ladder (1) is provided with a guide support assembly (2), which includes two rectangular vertical tubes (20) arranged symmetrically on the left and right. The rear side of the rectangular vertical tubes (20) is provided with multiple U-shaped hanging plates (21) arranged equidistantly on the top and bottom. The U-shaped hanging plates (21) are sleeved on the outside of the rungs of the vertical ladder (1). The two rectangular vertical tubes (20) are connected to a lifting assembly (3). The lifting assembly (3) includes two L-shaped brackets (30) arranged symmetrically on the left and right. A rotating rod (31) is rotatably connected between the two L-shaped brackets (30). The outer wall of the rotating rod (31) and near the left and right ends are provided with winding discs (32). Both winding discs (32) are wound with traction safety ropes (4). The bottom ends of the two traction safety ropes (4) are provided with movable parts (5). The movable parts (5) include rectangular sliders (50) that are slidably connected in the rectangular vertical tube (20). The opposite sides of the rectangular sliders (50) of the two movable parts (5) are provided with connecting rods (51). The opposite ends of the two connecting rods (51) are provided with safety hanging rings (52). A top plate (33) is provided between the two L-shaped brackets (30) and at the top. A drive motor (34) is provided on the top of the top plate (33). The output shaft of the drive motor (34) passes through the top of the top plate (33) and is coaxially connected with a worm gear (35). The outer wall of the rotating rod (31) is provided with a worm wheel (36) that meshes with the worm gear (35) for transmission.

2. The wind turbine tower climbing assist device according to claim 1, characterized in that: Both rectangular vertical tubes (20) have slots (200) on their opposite sides, and the connecting rod (51) passes through the slots (200).

3. The wind turbine tower climbing assist device according to claim 1, characterized in that: The front side of the U-shaped hanging plate (21) is threaded with a clamping bolt (22), and the threaded end of the clamping bolt (22) abuts against the front side of the vertical ladder (1) step.

4. The wind turbine tower climbing assist device according to claim 1, characterized in that: The two L-shaped supports (30) are located on the top of the opposite sides of the two rectangular vertical tubes (20).

5. The wind turbine tower climbing assist device according to claim 1, characterized in that: The top of the rectangular slider (50) is provided with a lifting ring (53), which is connected to the bottom end of the traction safety rope (4).

6. The wind turbine tower climbing assistance device according to claim 1, characterized in that: The rectangular slider (50) has U-shaped grooves (500) on both the front and rear sides. Rollers (54) are rotatably connected between the left and right sides of the inner wall of the U-shaped groove (500). The outer wall of the rollers (54) is in contact with the inner wall of the rectangular vertical tube (20).

7. The wind turbine tower climbing assist device according to claim 1, characterized in that: The bottom of the top plate (33) is provided with an L-shaped support plate (37), and the bottom end of the worm (35) is rotatably connected to the bottom of the inner wall of the L-shaped support plate (37).

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