Folding type hoisting equipment used in wind power tower drum

Abstract

The utility model discloses folding type hoisting equipment used in a wind power tower drum, which belongs to the technical field of wind power tower drum auxiliary appliances and comprises a wind power tower drum, a first fixing side plate and a second fixing side plate, and mounting plates are arranged on opposite sides of the first fixing side plate and the second fixing side plate. A first supporting arm and a second supporting arm are installed at the tops of the installation plates at different positions correspondingly, a movable arm is rotationally connected to one end of the first supporting arm, an installation through hole is formed in the movable arm, two first guide wheels are symmetrically arranged on the installation through hole, and two guide wheel sets are installed at the top of the movable arm; a winding assembly is arranged on the mounting plate located on the first supporting arm, and a connecting steel rope is arranged between the winding assembly and the guide wheel set and between the winding assembly and the first guide wheel. Through cooperative use of the first supporting arm, the movable arm and other components, the movable arm can be conveniently and integrally moved, the middle position of the wind power tower drum is prevented from being occupied, and adjustment can be conveniently conducted according to the requirements of installation and maintenance work.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for wind turbine towers, specifically a folding hoisting device for use inside wind turbine towers. Background Technology

[0002] A wind turbine tower is the main structural support structure of a wind turbine generator set. Located beneath the wind turbine and rotor, it supports these components, which can weigh tens of tons, and also absorbs vibrations from the turbine. After construction, wind turbine towers require frequent maintenance and upkeep of the top gearbox and individual tower sections. Sometimes, transporting tools to designated locations manually is time-consuming, labor-intensive, and unsafe; therefore, hoisting equipment is installed inside the wind turbine tower.

[0003] However, existing folding hoisting equipment used inside wind turbine towers has the following problems during use: Since the hoisting equipment is generally fixed at the center of the tower, it occupies a large amount of workspace during maintenance and installation work that is not required for hoisting, thus affecting the operation of these tasks. Therefore, it is necessary to design corresponding technical solutions to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a foldable hoisting device for use inside wind turbine towers, which solves the technical problem that the hoisting device is usually fixed in the center of the tower, and will occupy a large amount of workspace during maintenance and installation work that is not required for hoisting, thus affecting the operation of maintenance and other work, and meets the actual use needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a wind turbine tower, a first fixed side plate, and a second fixed side plate. An mounting plate is provided on the side of the first and second fixed side plates facing each other. A first support arm and a second support arm are respectively mounted on the top of the mounting plates at different positions. A movable arm is rotatably connected to one end of the first support arm. The movable arm has a mounting through hole, and two guide wheels are symmetrically arranged on the mounting through hole. Two guide wheel groups are mounted on the top of the movable arm. A winding assembly is provided on the mounting plate located on the first support arm. A connecting steel rope is provided between the winding assembly and the guide wheel groups and the guide wheels. A drive box is provided between the winding assembly and the mounting plate. A drive box is installed at the connection between the first support arm and the movable arm. A locking fastener is installed on the top of the second support arm.

[0006] In a preferred embodiment of the present invention, both the first fixed side plate and the second fixed side plate are in the form of a curved arc structure. The first fixed side plate and the second fixed side plate are fixed on the inner wall of the wind turbine tower, and one side of the mounting plate is attached to the first fixed side plate and the second fixed side plate.

[0007] In a preferred embodiment of this utility model, the guide wheel assembly at different positions includes two structures: two guide wheels and a fixed frame, and a single guide wheel and a fixed frame. The winding assembly includes a winding roller and two supporting side plates. The connecting steel rope passes through the guide wheel and the guide wheel in sequence and is fixed on the winding roller.

[0008] In a preferred embodiment of this utility model, one end of the movable arm is located on the top of the second support arm, a lifting device is connected to the bottom end of the connecting steel rope, a drive motor is installed inside the drive box, a transmission rod is provided on the drive end of the drive motor, and bevel gears are installed on both the transmission rod and the winding roller, with the two bevel gears at different positions meshing together.

[0009] In a preferred embodiment of this utility model, a second drive motor is installed inside the second drive box. The drive end of the second drive motor is fixed on the rotating end of the movable arm. The locking device includes a push rod motor, a fixed base, and a movable pin. The push rod motor and the fixed base are sequentially installed on the second support arm. One end of the movable pin is inserted into one end of the movable arm. The movable pin is slidably connected to the fixed base and one end is fixed to the drive end of the push rod motor.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] By using the first support arm and the movable arm in combination, the movable arm can be easily moved as a whole. When hoisting is required, the movable arm can be moved and unfolded, fixed in the center of the wind turbine tower, and secured with fasteners. Hoisting can then be carried out by connecting steel cables. When hoisting is required, the movable arm can be moved as a whole through the second drive box, realizing the rotation and folding of the movable arm. This does not occupy the center position inside the wind turbine tower, facilitating routine maintenance and other work, and avoiding interference with operations, thus solving the problem of operations that affect maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0013] Figure 2 This is a structural diagram of the mounting plate described in this utility model;

[0014] Figure 3 This is a structural diagram of the movable arm described in this utility model;

[0015] Figure 4 This is a structural diagram of the drive box described in this utility model.

[0016] In the diagram: First fixed side plate-1, wind turbine tower-2, locking fastener-3, mounting through hole-4, drive box two-5, mounting plate-6, drive box one-7, first support arm-8, winding assembly-9, second fixed side plate-10, movable arm-11, drive motor one-12, second support arm-13, guide wheel assembly-14, lifting device-15, connecting steel rope-16, bevel gear-17, guide wheel one-18, transmission rod-19. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a folding hoisting device for use inside a wind turbine tower, comprising: a wind turbine tower 2, a first fixed side plate 1 and a second fixed side plate 10, an mounting plate 6 is provided on the side of the first fixed side plate 1 and the second fixed side plate 10 facing each other, a first support arm 8 and a second support arm 13 are respectively installed on the top of the mounting plate 6 at different positions, a movable arm 11 is rotatably connected to one end of the first support arm 8, an installation through hole 4 is provided on the movable arm 11, two guide wheels 18 are symmetrically arranged on the installation through hole 4, two guide wheel groups 14 are installed on the top of the movable arm 11, a winding assembly 9 is provided on the mounting plate 6 located on the first support arm 8, a connecting steel rope 16 is provided between the winding assembly 9 and the guide wheel group 14 and the guide wheel 18, a drive box 7 is provided between the winding assembly 9 and the mounting plate 6, a drive box 5 is installed at the connection between the first support arm 8 and the movable arm 11, and a locking fastener 3 is installed on the top of the second support arm 13.

[0019] In a further improvement, both the first fixed side plate 1 and the second fixed side plate 10 have an arc-shaped curved structure. The first fixed side plate 1 and the second fixed side plate 10 are fixed on the inner wall of the wind turbine tower 2, and one side of the mounting plate 6 is attached to the first fixed side plate 1 and the second fixed side plate 10.

[0020] Further improvements include two structures for the guide wheel assembly 14 at different positions: two guide wheels II and a fixed frame, and a single guide wheel I and a fixed frame. The winding assembly 9 includes a winding roller and two support side plates. The connecting steel rope 16 passes through the guide wheel I 18 and the guide wheel II in sequence and is fixed on the winding roller.

[0021] In a further improvement, one end of the movable arm 11 is located on top of the second support arm 13, and a lifting device 15 is connected to the bottom end of the connecting steel rope 16. A drive motor 12 is installed inside the drive box 7, and a transmission rod 19 is provided on the drive end of the drive motor 12. Both the transmission rod 19 and the winding roller are equipped with bevel gears 17, and the two bevel gears 17 in different positions are meshed and connected.

[0022] Further improvements include the installation of a second drive motor inside the drive box 2 5. The drive end of the second drive motor is fixed to the rotating end of the movable arm 11. The locking device 3 includes a push rod motor, a fixed seat, and a movable pin. The push rod motor and the fixed seat are sequentially installed on the second support arm 13. One end of the movable pin is inserted into one end of the movable arm 11. The movable pin is slidably connected to the fixed seat and one end is fixed to the drive end of the push rod motor.

[0023] In use: When hoisting equipment is needed, the second drive motor in the second drive box 5 drives the movable arm 11 to rotate on the first support arm 8, gradually moving it to the center position inside the wind turbine tower 2. Simultaneously, one end of the movable arm 1 moves to the second support arm 13. Then, through the locking fastener 3, the push rod motor drives the movable plug to move and insert it into one end of the movable arm 11 for fixation. During hoisting, the first drive motor 12 in the first drive box 7 drives the transmission rod 19 to rotate, which, in conjunction with the bevel gear 17, drives the winding assembly 9 to rotate and pulls the connecting steel rope to achieve hoisting. When hoisting is not needed, the movable plug is moved back by the push rod motor. At this time, the second drive motor in the second drive box 5 moves the movable arm 11 to fold with the first support arm 8, so as not to occupy the center position inside the wind turbine tower 2, avoiding affecting the operating space for maintenance and installation, and making it convenient to use.

[0024] The components of this utility model include: a first fixed side plate (1), a wind turbine tower (2), a locking fastener (3), a mounting through hole (4), a second drive box (5), a mounting plate (6), a first drive box (7), a first support arm (8), a winding assembly (9), a second fixed side plate (10), a movable arm (11), a first drive motor (12), a second support arm (13), a guide wheel assembly (14), a lifting device (15), a connecting steel rope (16), a bevel gear (17), a first guide wheel (18), and a transmission rod (19). All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that the installation position of the lifting equipment inside the wind turbine tower is generally fixed. Positioned at the center of the tower, hoisting equipment occupies a significant amount of workspace during maintenance and installation work that is not required for hoisting, leading to technical problems that affect the operation of maintenance and other tasks. This utility model addresses these issues by combining the aforementioned components, including the movable arm, the first support arm, the locking fasteners, and the second drive box. These components allow for convenient folding of the movable arm and the first support arm. When hoisting equipment is needed, the movable arm is moved to the center of the wind turbine tower for normal hoisting operations. When not in use, the movable arm and the first support arm can be folded together using the second drive motor within the second drive box, without occupying the center position within the wind turbine tower or affecting the operating space for regular use. This design is convenient and practical.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A folding hoisting device for use inside a wind turbine tower, characterized in that: The utility model relates to a wind power tower (2), first fixed side plate (1) and second fixed side plate (10) are included, one side of first fixed side plate (1) and second fixed side plate (10) is provided with mounting panel (6), the top of different positions of mounting panel (6) is installed respectively first support arm (8) and second support arm (13), one end of first support arm (8) is rotatably connected with movable arm (11), movable arm (11) is provided with installation through -hole (4), two guide wheels (18) are symmetrically arranged on installation through -hole (4), the top of movable arm (11) is installed with two guide pulley groups (14), the mounting panel (6) on first support arm (8) is provided with winding assembly (9), winding assembly (9) is provided with connecting steel wire (16) between guide pulley group (14) and guide wheel (18) one, winding assembly (9) is provided with drive box one (7) between mounting panel (6), drive box two (5) is installed at the junction of first support arm (8) and movable arm (11), locking piece (3) is installed on the top of second support arm (13).

2. The folding hoisting device for use in a wind power tower according to claim 1, characterized in that: First fixed side plate (1) and second fixed side plate (10) are both arc curved structure, first fixed side plate (1) and second fixed side plate (10) are fixed on the inner wall of wind power tower (2), one side of mounting panel (6) is attached to first fixed side plate (1) and second fixed side plate (10).

3. The folding hoisting device for use in a wind power tower according to claim 1, characterized in that: Different positions of guide pulley group (14) include two guide wheels two and fixed frame, single guide wheel one and fixed frame two structures, winding assembly (9) includes winding roller and two support side plates, connecting steel wire (16) passes through guide wheel (18) one, guide wheel two in proper order and is fixed on winding roller.

4. The folding hoisting device for use inside a wind power tower according to claim 3, characterized in that: One end of movable arm (11) is located on the top of second support arm (13), the bottom end of connecting steel wire (16) is connected with lifting appliance (15), drive motor one (12) is installed in drive box one (7), the drive end of drive motor one (12) is provided with transmission rod (19), bevel gear (17) is installed on transmission rod (19) and winding roller, two different positions bevel gear (17) are engagedly connected.

5. The folding hoisting device for use inside a wind power tower according to claim 1, characterized in that: Drive motor two is installed in drive box two (5), the drive end of drive motor two is fixed on the rotating end of movable arm (11), locking piece (3) includes push rod motor, fixed seat and movable plug post, push rod motor and fixed seat are installed on second support arm (13) in proper order, one end of movable plug post is inserted on one end of movable arm (11), movable plug post is slidably connected on fixed seat, one end is fixed on the drive end of push rod motor.

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