Lifting device in wind power generation tower

Abstract

The utility model relates to the technical field of lifting devices, in particular to a lifting device in a wind power generation tower, which comprises a moving plate, two guide rails are symmetrically arranged on one side of the moving plate, the side surfaces of the two guide rails are fixed on the inner wall of the power generation tower, and L-shaped guide plates are symmetrically mounted on one side, close to the guide rails, of the moving plate. A groove is formed between each L-shaped guide plate and the moving plate, each guide rail is located in the corresponding groove, a top plate is installed at the top of the moving plate, an installation box is installed at the top of the top plate, a rotating shaft is rotationally connected into the installation box, the two ends of the rotating shaft extend out of the installation box, and gears are installed at the two ends of the rotating shaft. The first protection strip and the second protection strip can be driven to move through the electric push rod, so that the edges of the top plate and the bottom plate can be blocked, a worker does not fall off from the lifting decoration when sitting on the lifting device for lifting, and the use effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting device technical field especially relates to a wind power generation tower inner lifting device. BACKGROUND

[0002] As a kind of clean renewable resources, wind energy is more and more valued by countries around the world, and the principle of wind power generation is to use wind to drive windmill blades to rotate, and then to increase the speed of rotation through speed increaser to promote generator to generate electricity, since wind power generation tower is high, when the structure in the top of tower is overhauled, the staff needs to be transported to the top of tower by lifting mechanism.

[0003] The existing wind power generation tower inner lifting device generally sets platform on the side of guide rail, and connects platform with guide rail, staff stands on platform, then pulls cable through driving mechanism to drive staff to lift.But, since the edge of platform has no guardrail, staff is still unable to prevent from falling off platform accidentally through connecting staff with platform by safety rope, use effect is poor, and in use process, platform is lifted by driving mechanism pulling cable, in lifting process, cable is easy to be wound together with cable inside tower, affects lifting, use effect is poor. For this reason, we propose a kind of wind power generation tower inner lifting device. UTILITARIAN CONTENT

[0004] The utility model aims at solving the above-mentioned shortcomings existing in prior art, and proposes a kind of wind power generation tower inner lifting device.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: design a kind of wind power generation tower inner lifting device, including moving plate, the side symmetry of moving plate is equipped with two guide rails, the side of two guide rails is fixed on the inner wall of power generation tower, and the side of moving plate close to guide rail is symmetrically installed with L-shaped guide plate, recess is formed between each L-shaped guide plate and moving plate, and each guide rail is located in corresponding recess;

[0006] The top of moving plate is installed with top plate, the top of top plate is installed with mounting box, the inside of mounting box is rotatably connected with shaft, the both ends of shaft are extended to the outside of mounting box, and the both ends of shaft are installed with gear, the side of each guide rail close to moving plate is installed with rack, and each gear is engaged with corresponding rack;

[0007] The inside of mounting box is also rotatably connected with worm on one side, the top of worm is connected with driving motor, driving motor is fixed on the top of mounting box, and the side of shaft is installed with turbine, turbine is engaged with worm;

[0008] The bottom of the moving plate is provided with a bottom plate, and a plurality of first protection strips are arranged between the top plate and the bottom plate.

[0009] The two ends of the first protection strip at the lower side are connected through a connecting rod, the side surface of the connecting rod is provided with a connecting block, the side surface of the moving plate is provided with a through slot, one end of the connecting block extends into the through slot, and the top of the through slot is provided with an electric push rod.

[0010] Preferably, a gap exists between the side surface of the moving plate and the side surface of the connecting rod.

[0011] Preferably, the two side surfaces of the moving plate are provided with guide grooves, and the two ends of the plurality of first protection strips are connected through strip-shaped limiting plates, and the side surfaces of the strip-shaped limiting plates extend into the guide grooves and are connected with the guide grooves in a sliding mode.

[0012] Preferably, a gap exists between the inner side surface of the first protection strip and the edges of the top plate and the bottom plate.

[0013] Preferably, when the electric push rod is retracted to a preset length, the distance between the bottom of the first protection strip at the lowermost side and the bottom plate is greater than the height of the worker.

[0014] Preferably, the outer surfaces of the first protection strips and the second protection strips are provided with buffer sleeves.

[0015] Preferably, the inside of the bottom plate is provided with a battery groove, the battery groove is provided with a battery, a containing groove is arranged on one side of the moving plate, and a control switch is arranged in the containing groove, and the control switch is connected with the battery, the electric push rod and the driving motor through wires.

[0016] The design scheme of the utility model has the advantages that in the application process,

[0017] The first protection strips and the second protection strips can be moved by the electric push rod, the edges of the top plate and the bottom plate can be blocked, the worker will not fall off the lifting device when the worker is lifted by the lifting device, and the use effect is improved.

[0018] The driving motor can drive the gear to rotate under the action of the worm gear, and then the moving plate can be moved along the guide rail under the cooperation of the gear and the rack, that is, the lifting can be completed, the steel cable is used for lifting wirelessly, the steel cable will not be wound together with the cable during lifting, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the utility model is shown Figure 1 ;

[0020] Figure 2This is a schematic diagram of the structure of the utility model Figure 2 ;

[0021] Figure 3 This is a front view of the connection structure between the movable plate and the first and second protective strips of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the installation box of the present utility model.

[0023] In the figure: 1. Battery; 2. Rack; 3. Guide rail; 4. Battery slot; 5. Bottom plate; 6. First protective strip; 7. Second protective strip; 8. Through slot; 9. Connecting rod; 10. Connecting block; 11. Electric push rod; 12. Moving plate; 13. Top plate; 14. Drive motor; 15. Mounting box; 16. Gear; 17. Guide slot; 18. Bar limit plate; 19. L-shaped guide plate; 20. Rotating shaft; 21. Turbine; 22. Worm; 23. Receiving slot; 24. Control switch. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figures 1-4 A lifting device inside a wind power tower includes a movable plate 12, and a base plate 5 is installed at the bottom of the movable plate 12. When in use, the staff can stand on the base plate 5, and then the movable plate 12 drives the staff to move up and down.

[0026] like Figure 1 and Figure 3 As shown, a battery slot 4 is provided inside the bottom plate 5, and a battery 1 is installed inside the battery slot 4. A receiving slot 23 is opened on one side of the movable plate 12, and a control switch 24 is installed inside the receiving slot 23. The control switch 24 is connected to the battery 1 through a wire.

[0027] like Figure 1 and Figure 2 As shown, two guide rails 3 are symmetrically provided on one side of the movable plate 12, and the side surfaces of the two guide rails 3 are fixed on the inner wall of the power tower, and L-shaped guide plates 19 are symmetrically installed on the side of the movable plate 12 close to the guide rail 3. A groove is formed between each L-shaped guide plate 19 and the movable plate 12, and each guide rail 3 is located in the corresponding groove. During actual use, the movable plate 12 can be limited by the L-shaped guide plate 19 so that the movable plate 12 can move along the guide rail 3.

[0028] like Figure 1 and Figure 4As shown, the top of the moving plate 12 is provided with a top plate 13, the top of the top plate 13 is provided with a mounting box 15, the inside of the mounting box 15 is rotatably connected with a rotating shaft 20, both ends of the rotating shaft 20 extend to the outside of the mounting box 15, and both ends of the rotating shaft 20 are provided with a gear 16, each guide rail 3 is provided with a rack 2 on the side close to the moving plate 12, each gear 16 is engaged with the corresponding rack 2, the inside of the mounting box 15 is further rotatably connected with a worm 22, the top of the worm 22 is connected with a driving motor 14, the driving motor 14 is fixed on the top of the mounting box 15, the driving motor 14 is connected with a control switch 24 through wires, and the side surface of the rotating shaft 20 is provided with a turbine 21, the turbine 21 is engaged with the worm 22, in actual use, the driving motor 14 can drive the worm 22 to rotate, and then the two gears 16 can be synchronously driven to rotate under the action of the turbine 21, so that the moving plate 12 can move along the guide rail 3 under the cooperation of the gears 16 and the racks 2, and the lifting is completed.

[0029] It should be noted that under the cooperation of the turbine 21 and the worm 22, the rotating shaft 20 has a self-locking function, so that when the driving motor 14 fails, the moving plate 12 will not fall.

[0030] As shown in Figure 1 and Figure 3 , a plurality of first protective strips 6 are arranged between the bottom plate 5 and the top plate 13, and the adjacent two first protective strips 6 are connected by a plurality of second protective strips 7. Under the action of the first protective strips 6 and the second protective strips 7, the bottom plate 5 and the top plate 13 can be shielded. When the staff stands on the bottom plate 5 for lifting, falling can be avoided.

[0031] As shown in Figure 1 and Figure 3 , one end of the first protective strip 6 located below is connected through a connecting rod 9, the side surface of the connecting rod 9 is provided with a connecting block 10, the side surface of the moving plate 12 is provided with a through slot 8, one end of the connecting block 10 extends into the through slot 8, and the top of the through slot 8 is provided with an electric push rod 11, the bottom of the electric push rod 11 is fixed on the top of the connecting block 10, and the electric push rod 11 is connected with the control switch 24 through wires. In use, the staff can control the extension and retraction of the electric push rod 11 through the control switch 24, so as to control the lifting of the first protective strips 6 and the second protective strips 7.

[0032] It should be noted that as shown in Figure 1 and Figure 2 , the connecting rod 9 is provided with a connecting block 10, the side surface of the connecting rod 9 is provided with a connecting block 10, the side surface of the moving plate 12 is provided with a through slot 8, one end of the connecting block 10 extends into the through slot 8, and the top of the through slot 8 is provided with an electric push rod 11, the bottom of the electric push rod 11 is fixed on the top of the connecting block 10, and the electric push rod 11 is connected with the control switch 24 through wires. In use, the staff can control the extension and retraction of the electric push rod 11 through the control switch 24, so as to control the lifting of the first protective strips 6 and the second protective strips 7.As shown, the two sides of the moving plate 12 are provided with guide grooves 17, and the two ends of the first protective strips 6 are connected through strip-shaped limiting plates 18, and one side of the strip-shaped limiting plates 18 extends into the guide grooves 17 and is connected with the guide grooves 17 in a sliding mode, and in actual use, the guide grooves 17 can limit the strip-shaped limiting plates 18, so that the first protective strips 6 and the second protective strips 7 can be kept stable when moving along with the extension and contraction of the electric push rod 11.

[0033] It should be noted that when the electric push rod 11 is contracted to a preset length, the distance between the bottom of the lowermost first protective strip 6 and the bottom plate 5 is greater than the height of the worker, so that the first protective strips 6 and the second protective strips 7 will not hinder the worker when the worker is on and off the bottom plate 5.

[0034] Specifically, in use, the worker can stand on the bottom plate 5 and then press the control switch 24, and the control switch 24 controls the electric push rod 11 to extend, and the electric push rod 11 drives the connecting block 10 to move downward along the through groove 8, and the connecting block 10 drives the first protective strips 6 and the second protective strips 7 to move downward, and the edges of the bottom plate 5 and the top plate 13 are shielded, and the worker is located in the space formed between the bottom plate 5, the top plate 13, the first protective strips 6 and the second protective strips 7, so that the worker can be prevented from falling off the bottom plate 5 when the moving plate 12 is lifted, and when the first protective strips 6 and the second protective strips 7 move to a preset position, the worker controls the driving motor 14 to work through the control switch 24, and the driving motor 14 can drive the rotating shaft 20 to rotate under the cooperation of the worm 22 and the turbine 21, and then the two gears 16 are synchronously rotated, so that the moving plate 12 can be moved along the guide rail 3 under the cooperation of the rack 2 and the gear 16, and the lifting is completed.

[0035] Further, as shown in the figure, Figure 1 The side of the connecting rod 9 and the side surface of the moving plate 12 have a gap, so that the connecting rod 9 will not collide with the worker when moving up and down along with the first protective strips 6.

[0036] Further, as shown in the figure, Figure 1 The inner side surface of the first protective strip 6 and the edges of the top plate 13 and the bottom plate 5 have a gap, so that the first protective strip 6 will not collide with the top plate 13 or the bottom plate 5 when moving.

[0037] Further, the outer surfaces of the first protective strips 6 and the second protective strips 7 are provided with buffer sleeves, which can be buffer rubber or other flexible materials with buffering performance, so that the worker will not be injured when colliding with the first protective strips 6 or the second protective strips 7.

[0038] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A lifting device in a wind power tower, comprising a movable plate (12), characterized in that: Two guide rails (3) are symmetrically provided on one side of the movable plate (12), and the side surfaces of the two guide rails (3) are fixed to the inner wall of the power generation tower. L-shaped guide plates (19) are symmetrically installed on the side of the movable plate (12) close to the guide rails (3). A groove is formed between each L-shaped guide plate (19) and the movable plate (12), and each guide rail (3) is located in the corresponding groove. A top plate (13) is installed on the top of the movable plate (12), and a mounting box (15) is installed on the top of the top plate (13). A rotating shaft (20) is rotatably connected inside the mounting box (15), and both ends of the rotating shaft (20) extend to the outside of the mounting box (15). Gears (16) are installed on both ends of the rotating shaft (20). A rack (2) is installed on one side of each guide rail (3) close to the movable plate (12), and each gear (16) is meshed with a corresponding rack (2). A worm (22) is rotatably connected to one side of the interior of the mounting box (15), a drive motor (14) is connected to the top of the worm (22), the drive motor (14) is fixed to the top of the mounting box (15), and a turbine (21) is installed on the side of the rotating shaft (20), and the turbine (21) is meshed with the worm (22); A bottom plate (5) is installed at the bottom of the movable plate (12), a plurality of first protection strips (6) are provided between the bottom plate (5) and the top plate (13), and two adjacent first protection strips (6) are connected via a plurality of second protection strips (7); The two ends of a first protective strip (6) located at the bottom are connected by a connecting rod (9), a connecting block (10) is installed on the side of the connecting rod (9), a through slot (8) is opened on the side of the movable plate (12), one end of the connecting block (10) extends into the through slot (8), and an electric push rod (11) is installed on the top of the through slot (8), and the bottom of the electric push rod (11) is fixed to the top of the connecting block (10).

2. The lifting device in a wind power tower according to claim 1, characterized in that: There is a gap between one side of the connecting rod (9) and the side surface of the moving plate (12).

3. The lifting device in a wind power tower according to claim 1, characterized in that: Guide grooves (17) are provided on both sides of the movable plate (12), and both ends of the plurality of first protection strips (6) are connected via strip-shaped limiting plates (18), and one side of the strip-shaped limiting plates (18) extends into the guide grooves (17) and is slidably connected to the guide grooves (17).

4. The lifting device in a wind power tower according to claim 1, characterized in that: There is a gap between the inner side of the first protective strip (6) and the edges of the top plate (13) and the bottom plate (5).

5. The lifting device in a wind power tower according to claim 1, characterized in that: When the electric push rod (11) is retracted to a preset length, the distance between the bottom of the first protective strip (6) located at the bottom and the bottom plate (5) is greater than the height of the staff.

6. The lifting device in a wind power tower according to claim 1, characterized in that: The outer surfaces of the first protective strip (6) and the second protective strip (7) are both provided with buffer sleeves.

7. The lifting device in a wind power tower according to claim 1, characterized in that: A battery slot (4) is provided inside the bottom plate (5), and a battery (1) is installed inside the battery slot (4). A receiving slot (23) is provided on one side of the movable plate (12), and a control switch (24) is installed inside the receiving slot (23). The control switch (24) is connected to the battery (1), the electric push rod (11), and the drive motor (14) through wires.

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