Auxiliary device for tower drum of wind generating set

Abstract

The utility model discloses an auxiliary device for a tower drum of a wind generating set. The auxiliary device for the tower drum of the wind generating set comprises a mounting frame and a first adjusting assembly, and the first adjusting assembly is slidably mounted on the mounting frame in the first direction; the device comprises a first adjusting assembly, a second adjusting assembly and a fastening assembly, the second adjusting assembly is installed on the first adjusting assembly, the fastening assembly is connected with the second adjusting assembly, the fastening assembly comprises a fastening piece and a driving piece, and the driving piece is used for driving the fastening piece to rotate. The second adjusting assembly is configured to drive the fastening assembly to move in the second direction, and the second direction intersects with the first direction. According to the auxiliary device for the tower drum of the wind generating set, fastening of the connecting bolts and auxiliary operation of tightening torque can be achieved, the operation difficulty can be reduced, the working efficiency is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbines, and in particular to an auxiliary device for a tower of a wind turbine generator set. Background Art

[0002] The tower of a wind turbine is a load-bearing component in the wind turbine. It mainly plays a supporting role in the wind turbine and absorbs the vibration of the unit. Its stability and safety are crucial to the operation of the wind turbine. The connecting bolts, as the key connecting parts for fixing the tower of the wind turbine, also play an important role.

[0003] During the installation and use of the wind turbine tower, due to the combined effects of factors such as the lateral force of the wind, mechanical vibration, internal stress of the connecting bolts, torque release, and temperature difference, it is necessary to ensure the stability and safety of the entire structure by controlling the tightening force of the connecting bolts. In the relevant technology, the torque tightening of the connecting bolts of the wind turbine tower is mainly completed manually, but the height of the flange platform at the connection of the wind turbine tower is relatively high, which makes the operation difficult and the work efficiency low. At the same time, there are greater safety hazards for workers working at a high position. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an auxiliary device for the tower of a wind turbine generator set, which can realize the auxiliary operation of the tightening of the connecting bolts and the tightening torque, reduce the labor intensity, improve the maintenance quality of the connecting bolt torque, and thus ensure the reasonable pre-tightening force of the connecting bolts, improve the bearing capacity of the tower, and ensure its safety and reliability.

[0005] According to an embodiment of the present application, an auxiliary device for a tower of a wind turbine generator set includes: a mounting frame and a first adjustment component, the first adjustment component is slidably mounted on the mounting frame along a first direction; a second adjustment component and a fastening component, the second adjustment component is mounted on the first adjustment component, the fastening component is connected to the second adjustment component, the fastening component includes a fastener and a driving member, the driving member is used to drive the fastener to rotate, and the second adjustment component is configured to drive the fastening component to move along a second direction, and the second direction is arranged to intersect with the first direction.

[0006] According to the auxiliary device for the tower of a wind turbine generator set in the embodiment of the present application, the mounting frame can be placed on the flange platform at the connection between two adjacent towers of the wind turbine generator set, and then the position of the fastening assembly can be adjusted using the first adjustment assembly and the second adjustment assembly so that the fastening assembly can engage with the connecting bolts on the flange platform, and then the connecting bolts can be driven to rotate by the driving member to achieve auxiliary operations on the tightening of the connecting bolts and the tightening torque, thereby reducing manual labor intensity, improving the quality of connecting bolt torque maintenance, and thereby ensuring a reasonable pre-tightening force of the connecting bolts, improving the bearing capacity of the tower, and ensuring its safety and reliability. In particular, no manual operation is required, which is conducive to reducing operating difficulty, improving work efficiency, and reducing safety hazards.

[0007] According to some embodiments of the present application, the auxiliary device for the tower of a wind turbine generator set is provided with a slide rail, the first adjustment component includes a slide plate and a pulley, the second adjustment component is installed on the slide plate, the pulley is rotatably installed on the slide plate, and the pulley is slidably matched with the slide rail.

[0008] According to some embodiments of the auxiliary device for the tower of a wind turbine generator set of the present application, the slide rail includes a first slide rail and a second slide rail spaced apart from each other, the pulley includes a first pulley and a second pulley, the first pulley and the second pulley are respectively located on two opposite sides of the slide plate, the first pulley is slidably matched with the first slide rail, and the second pulley is slidably matched with the second slide rail.

[0009] According to some embodiments of the auxiliary device for the tower of a wind turbine generator set of the present application, an escape space is formed between the first slide rail and the second slide rail, and at least a portion of the second adjustment component is inserted into the escape space to be connected to the fastening component.

[0010] According to some embodiments of the present application, the auxiliary device for the tower of a wind turbine generator set, the second adjustment component includes a fixed frame and an electric push rod, the fixed frame is connected to the slide plate, and the slide plate is provided with an avoidance hole connected to the avoidance space, one end of the electric push rod is fixed to the fixed frame and the other end is passed through the avoidance hole and extends into the avoidance space, and the other end of the electric push rod is connected to the fastening assembly.

[0011] According to some embodiments of the auxiliary device for the tower of a wind turbine generator set of the present application, the second adjustment assembly further includes: a lifting ear and a connecting ring, the connecting ring being connected to the other end of the electric push rod, and the lifting ear being connected between the connecting ring and the fastening assembly.

[0012] According to some embodiments of the present application, the auxiliary device for the tower of a wind turbine generator set comprises a horizontal bracket and a vertical bracket, the first adjustment component is installed on the horizontal bracket, the horizontal bracket and the vertical bracket are rotatably connected, and the mounting bracket has a stowed state and an expanded state, in the stowed state, the vertical bracket is arranged parallel to the horizontal bracket, and in the expanded state, the vertical bracket is perpendicular to the horizontal bracket.

[0013] According to some embodiments of the auxiliary device for the tower of a wind turbine generator set of the present application, in the unfolded state, an operating space is defined between the horizontal support and the vertical support, and the fastening assembly is located in the operating space.

[0014] According to some embodiments of the auxiliary device for the tower of a wind turbine generator set of the present application, the auxiliary device for the tower of a wind turbine generator set also includes a control device, which is electrically connected to the first adjusting component, and the control device is used to control the first adjusting component to slide along the first direction, and / or the control device is electrically connected to the second adjusting component, and the control device is used to control the second adjusting component to drive the fastening component to move along the second direction, and / or the control device is electrically connected to the driving member, and the control device is used to control the driving member to drive the fastener to rotate.

[0015] According to the auxiliary device for the tower of a wind turbine generator set in some embodiments of the present application, the first direction is a horizontal direction, and the second direction is a vertical direction.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of an auxiliary device for a tower of a wind turbine generator set according to some embodiments of the present application when used on a flange platform;

[0019] Figure 2 A schematic diagram of an auxiliary device for a tower of a wind turbine generator set according to some embodiments of the present application;

[0020] Figure 3 for Figure 2 An assembly diagram of the mounting frame and the first adjustment assembly;

[0021] Figure 4 for Figure 2An assembly diagram of the mounting frame and the first adjustment assembly;

[0022] Figure 5 for Figure 2 A schematic diagram of a fastening assembly in FIG.

[0023] Figure 6 for Figure 2 Schematic diagram of the mounting bracket in .

[0024] Reference numerals:

[0025] Tower 20; flange platform 30; connecting bolts 40;

[0026] Auxiliary device 10 for a tower of a wind turbine generator set;

[0027] Mounting frame 1; horizontal bracket 11; vertical bracket 12; caster 121; slide rail 111; first slide rail 1111; second slide rail 1112; oblique bracket 13; ball head latch 14; rotating shaft 15; avoidance space 16;

[0028] First adjustment component 2; slide plate 21; avoidance hole 211; pulley 22; first pulley 221; second pulley 222;

[0029] The second adjustment component 3; the fixing frame 31; the electric push rod 32; the lifting ear 33; the connecting ring 34; the screw rod 35; the fastening component 4; the fastener 41; the driving member 42; the reaction force arm 43; and the control device 5. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] Reference below Figure 1-Figure 6 An auxiliary device 10 for a tower of a wind turbine generator set according to an embodiment of the present application is described.

[0033] It should be noted that the tower 20 of the wind turbine generator set is a load-bearing component in the wind turbine generator set. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the unit. Its stability and safety are crucial to the operation of the wind turbine generator set. The tower 20 usually has multiple parts, such as Figure 1 As shown, two adjacent towers 20 are connected by connecting bolts 40 . Therefore, the connecting bolts 40 , as key connecting parts for fixing the towers 20 of the wind turbine generator set, also play an important role.

[0034] Among them, Figure 1 As shown, one of the two adjacent towers 20 is provided with a flange platform 30. During the hoisting process of the tower 20 of the wind turbine generator set: all the bolts on the connecting flange platform 30 between the upper tower section 20 and the fixed lower tower section 20 are passed from bottom to top through the connecting holes and the gaskets placed on the flange platform 30 of the upper tower section 20, and are pre-fixed by nuts. When applying torque to the nuts or connecting bolts 40, it is usually done manually using a wrench. However, the height of the flange platform 30 at the connection of the tower 20 of the wind turbine generator set is relatively high, which makes the operation difficult and the work efficiency low. At the same time, there are greater safety hazards for workers working at a higher position.

[0035] In this regard, the present application proposes an auxiliary device 10 for the tower of a wind turbine generator set. The auxiliary device 10 for the tower of a wind turbine generator set can realize auxiliary operations on the tightening and tightening torque of the connecting bolts 40, reduce manual labor intensity, improve the torque maintenance quality of the connecting bolts 40, and thus ensure a reasonable pre-tightening force of the connecting bolts 40, improve the bearing capacity of the tower 20, and ensure its safety and reliability. In particular, no manual operation is required, which is conducive to reducing operating difficulty, improving work efficiency and reducing safety hazards.

[0036] like Figure 2 As shown, the auxiliary device 10 for the tower of a wind turbine generator set according to an embodiment of the present application includes: a mounting frame 1, a first adjustment component 2, a second adjustment component 3 and a fastening component 4.

[0037] The mounting frame 1 is suitable for being placed on the flange platform 30, the first adjustment component 2 is slidably mounted on the mounting frame 1 along the first direction, the second adjustment component 3 is mounted on the first adjustment component 2, and the fastening component 4 is connected to the second adjustment component 3. In this way, it is convenient to adjust the position of the fastening component 4 in the first direction through the first adjustment component 2, so that the fastening component 4 can be better aligned with the connecting bolt 40 or nut on the flange platform 30, and then tighten the connecting bolt 40 or nut.

[0038] Further, the second adjustment component 3 is configured to drive the fastening component 4 to move along the second direction. In this way, the second adjustment component 3 can be used to adjust the position of the fastening component 4 in the second direction, so that the fastening component 4 can be better aligned with the connecting bolts 40 or nuts on the flange platform 30, and then the connecting bolts 40 or nuts can be tightened.

[0039] Among them, the second direction is arranged to intersect with the first direction, that is, the adjustment directions of the first adjustment component 2 and the second adjustment component 3 on the fastening component 4 intersect, so that the fastening component 4 can be better aligned with the connecting bolt 40 or the nut, thereby reducing the difficulty of aligning the fastening component 4 with the connecting bolt 40 or the nut.

[0040] Furthermore, if Figure 5 As shown, the fastening assembly 4 includes a fastener 41 and a driving member 42, and the driving member 42 is used to drive the fastener 41 to rotate. For example, the fastener 41 can be a hydraulic wrench, so that the hydraulic wrench can realize the tightening of the connecting bolt 40 or the nut. The driving member 42 can be a hydraulic pump station. The hydraulic pump station and the hydraulic wrench can be connected through a hydraulic oil pipe that transmits hydraulic pressure. In this way, the hydraulic pump station can drive the hydraulic wrench to tighten the connecting bolt 40 or the nut. Therefore, the auxiliary device 10 for the tower of the wind turbine generator set can replace manpower to realize the auxiliary operation of tightening the connecting bolt 40 and tightening torque, reduce the labor intensity of manual labor, improve the torque maintenance quality of the connecting bolt 40, and then ensure the reasonable pre-tightening force of the connecting bolt 40, improve the bearing capacity of the tower 20, and ensure its safety and reliability. In particular, no manual operation is required, which is conducive to reducing the difficulty of operation, improving work efficiency and reducing safety hazards.

[0041] According to the auxiliary device 10 for the tower of a wind turbine generator set in the embodiment of the present application, the mounting frame 1 can be placed on the flange platform 30 at the connection between two adjacent towers 20 of the wind turbine generator set, and then the position of the fastening component 4 can be adjusted by using the first adjustment component 2 and the second adjustment component 3, so that the fastening component 4 can be connected to the connecting bolt 40 on the flange platform 30, and then the connecting bolt 40 can be driven to rotate by the driving member 42 to achieve the auxiliary operation of the tightening and tightening torque of the connecting bolt 40, reduce the labor intensity of manual labor, improve the torque maintenance quality of the connecting bolt 40, and then ensure the reasonable pre-tightening force of the connecting bolt 40, improve the bearing capacity of the tower 20, ensure its safety and reliability, especially, no manual operation is required, which is conducive to reducing the difficulty of operation, improving work efficiency and reducing safety hazards.

[0042] In some embodiments, Figure 3As shown, the mounting frame 1 is provided with a slide rail 111 , the first adjustment assembly 2 includes a slide plate 21 and a pulley 22 , the second adjustment assembly 3 is mounted on the slide plate 21 , the pulley 22 is rotatably mounted on the slide plate 21 , and the pulley 22 is slidably matched with the slide rail 111 .

[0043] Therefore, by setting the skateboard 21, the second adjustment component 3 can be more easily installed on the skateboard 21, which is conducive to reducing the difficulty of connecting the two. The structure of the skateboard 21 is simple, which is conducive to reducing costs. The setting of the pulley 22 allows the skateboard 21 to slide with the slide rail 111, thereby realizing the sliding of the skateboard 21 relative to the mounting frame 1, and the pulley 22 can be rotatably installed on the skateboard 21, so that the pulley 22 can roll in the slide rail 111, thereby reducing the difficulty of sliding cooperation between the pulley 22 and the slide rail 111.

[0044] In some embodiments, Figure 3 As shown, the slide rail 111 includes a first slide rail 1111 and a second slide rail 1112 that are spaced apart from each other, and the pulley 22 includes a first pulley 221 and a second pulley 222. The first pulley 221 and the second pulley 222 are respectively located on two opposite sides of the slide plate 21, and the first pulley 221 is slidably matched with the first slide rail 1111, and the second pulley 222 is slidably matched with the second slide rail 1112.

[0045] For example, the first pulley 221 and the second pulley 222 can be respectively arranged on two opposite sides of the slide plate 21, and the first slide rail 1111 and the second slide rail 1112 are arranged to be spaced apart, so that the opposite sides of the slide plate 21 can slide by the sliding cooperation between the pulley 22 and the corresponding slide rail 111. In this way, by arranging the first pulley 221 to slide with the first slide rail 1111, and the second pulley 222 to slide with the second slide rail 1112, the sliding stability of the slide plate 21 when sliding relative to the mounting frame 1 in the first direction is improved.

[0046] In some embodiments, Figure 3 As shown, an escape space 16 is formed between the first slide rail 1111 and the second slide rail 1112 , and at least a portion of the second adjustment component 3 is inserted into the escape space 16 to be connected with the fastening component 4 .

[0047] Thus, the second adjustment component 3 can be installed using the avoidance space 16 between the first slide rail 1111 and the second slide rail 1112, so that the second adjustment component 3 can be more easily connected to the fastening component 4, and the structure of the second adjustment component 3 and the mounting frame 1 is more compact, which is beneficial to reducing the volume of the auxiliary device 10 for the tower of the wind turbine generator set, thereby realizing the miniaturized design of the auxiliary device 10 for the tower of the wind turbine generator set.

[0048] In some embodiments, Figure 4As shown, the second adjustment assembly 3 includes a fixing frame 31 and an electric push rod 32 .

[0049] The fixing frame 31 is connected to the slide plate 21, and the slide plate 21 is provided with an avoidance hole 211 connected to the avoidance space 16. One end of the electric push rod 32 is fixed to the fixing frame 31 and the other end is passed through the avoidance hole 211 and extends into the avoidance space 16. The other end of the electric push rod 32 is connected to the fastening assembly 4, and the electric push rod 32 is used to drive the fastening assembly 4 to move along the second direction.

[0050] Therefore, by setting the fixing frame 31, the electric push rod 32 can be fixed, thereby enhancing the structural stability of the electric push rod 32. At the same time, by setting the avoidance hole 211, the electric push rod 32 can be prevented from interfering with the slide plate 21, so that the other end of the electric push rod 32 can be inserted into the avoidance hole 211 and extend into the avoidance space 16 to be connected with the fastening component 4, thereby reducing the difficulty of setting the electric push rod 32. At the same time, the inner wall of the avoidance hole 211 can also play a certain limiting role on the electric push rod 32 to ensure the structural stability of the electric push rod 32.

[0051] In some embodiments, Figure 4 As shown, a plurality of screw rods 35 are connected between the fixing frame 31 and the slide plate 21 . The plurality of screw rods 35 are arranged around the electric push rod 32 on the outside of the electric push rod 32 so as to protect the electric push rod 32 on the outside of the electric push rod 32 .

[0052] In some embodiments, Figure 2 As shown, the second adjustment component 3 also includes: a lifting ear 33 and a connecting ring 34 , the connecting ring 34 is connected to the other end of the electric push rod 32 , and the lifting ear 33 is connected between the connecting ring 34 and the fastening component 4 .

[0053] Therefore, by providing the lifting ear 33 and the connecting ring 34 , the other end of the electric push rod 32 can be connected to the fastening assembly 4 through the lifting ear 33 and the connecting ring 34 , so as to reduce the difficulty of connecting the two.

[0054] In some embodiments, Figure 6 As shown, the mounting frame 1 includes a horizontal bracket 11 and a vertical bracket 12, the first adjustment component 2 is installed on the horizontal bracket 11, the horizontal bracket 11 and the vertical bracket 12 are rotatably connected, and the mounting frame 1 has a storage state and an expanded state. In the storage state, the vertical bracket 12 is arranged parallel to the horizontal bracket 11, and in the expanded state, the vertical bracket 12 is perpendicular to the horizontal bracket 11.

[0055] As a result, the mounting frame 1 can be stored when not in use, that is, the mounting frame 1 is in a stored state. At this time, it is easy to reduce the overall volume of the mounting frame 1, which is conducive to reducing the difficulty of storage and reducing the space occupied during storage. At the same time, in the unfolded state, the vertical bracket 12 is perpendicular to the horizontal bracket 11, so that the vertical bracket 12 can support the horizontal bracket 11 to ensure the structural stability of the horizontal bracket 11.

[0056] The mounting frame 1 further comprises a ball pin 14. When in the unfolded state, the ball pin 14 is sequentially passed through the horizontal bracket 11 and the vertical bracket 12 to ensure the relative fixation of the horizontal bracket 11 and the vertical bracket 12, thereby ensuring the structural stability in the unfolded state.

[0057] In some embodiments, the mounting frame 1 also includes an oblique bracket 13, which is rotatably connected between the horizontal bracket 11 and the vertical bracket 12, so that the oblique bracket 13, the horizontal bracket 11 and the vertical bracket 12 form three sides of a triangle, thereby facilitating enhancing the structural stability of the mounting frame 1 when in the unfolded state.

[0058] In some embodiments, Figure 1 As shown, the mounting frame 1 may be provided with a rotatable caster 121, and the caster 121 may be a universal wheel, so that the position of the mounting frame 1 on the flange platform 30 can be adjusted by rotating the caster 121, thereby facilitating the adjustment of the position of the mounting frame 1 on the flange platform 30.

[0059] In some embodiments, in the unfolded state, an operating space is defined between the horizontal support 11 and the vertical support 12, and the fastening assembly 4 is located in the operating space. Therefore, the arrangement of the fastening assembly 4 can utilize the operating space between the horizontal support 11 and the vertical support 12, thereby improving the space utilization rate and making the structure more compact, which is conducive to reducing the volume of the auxiliary device 10 for the tower of the wind turbine generator set, thereby realizing the miniaturization design of the auxiliary device 10 for the tower of the wind turbine generator set.

[0060] At the same time, it is possible to avoid the vertical bracket 12 from blocking the connecting bolts 40 or nuts, thereby ensuring that the fastening assembly 4 can cooperate with the connecting bolts 40 or nuts.

[0061] In some embodiments, Figure 2 As shown, the auxiliary device 10 for the tower of a wind turbine generator set also includes a control device 5, which is electrically connected to the first adjusting component 2, and the control device 5 is used to control the first adjusting component 2 to slide in a first direction, and / or the control device 5 is electrically connected to the second adjusting component 3, and the control device 5 is used to control the second adjusting component 3 to drive the fastening component 4 to move in a second direction, and / or the control device 5 is electrically connected to the driving member 42, and the control device 5 is used to control the driving member 42 to drive the fastener 41 to rotate.

[0062] Therefore, it is convenient to control the movement of the first adjustment component 2 through the control device 5, and / or to control the movement of the second adjustment component 3 through the control device 5, and / or to control the movement of the fastener 41 through the control device 5, thereby reducing the difficulty of operation.

[0063] In some embodiments, the first direction is the horizontal direction and the second direction is the vertical direction. Thus, the position of the fastening assembly 4 can be adjusted in the horizontal direction and the vertical direction so that the fastening assembly 4 can be more accurately aligned with the connecting bolt 40 or the nut, thereby improving the alignment accuracy.

[0064] The following describes a specific embodiment of the auxiliary device 10 for the tower of a wind turbine generator set and its use process according to an embodiment of the present application:

[0065] A specific embodiment of the auxiliary device 10 for the tower of a wind turbine generator set is as follows: a first adjusting component 2 is arranged on the top surface of a mounting frame 1, a second adjusting component 3 is arranged at the top center position of the first adjusting component 2, a fastening component 4 is arranged below a lifting device, a control device 5 is arranged in front of the fastening component 4, and the mounting frame 1 adopts a vertical bracket 12 to rotate around a rotating shaft 15 and is fixed by an inclined bracket 13 using a triangular stability principle, and is connected by a quick ball head pin 14 to achieve a quick release and folding effect.

[0066] The slide rail 111 is welded at the middle position just above the mounting frame 1. The second adjustment assembly 3 includes an electric push rod 32, a fixing frame 31, a lifting ear 33 and a connecting ring 34. The telescopic rod of the electric push rod 32 passes through the avoidance hole 211 on the slide plate 21. The fixed end of the electric push rod 32 is connected to the fixing frame 31. The fixing frame 31 is fixed to the slide plate 21 by four screw rods 35. The lifting ear 33 is screwed into the threaded hole of the fastener 41 for lifting the fastener 41.

[0067] The fastening assembly 4 includes a reaction force arm 43, a fastener 41 and a driving member 42. The fastener 41 can be a hydraulic wrench, and the driving member 42 can be a hydraulic pump station that provides pressure. The hydraulic pump station and the hydraulic wrench are connected by a hydraulic oil pipe for conveying hydraulic pressure. The fastening assembly 4 also includes a square drive shaft rotatable in the inner cavity of the hydraulic wrench, a quick locking cover plate and a hexagon socket adapted to the connecting bolt 40. There is a threaded hole on the upper and lower sides of the hydraulic wrench, and the threaded hole is connected to the adapted lifting ear 33 for lifting the hydraulic wrench. The square drive shaft is inserted into the hydraulic wrench and fixed, and the other end is connected to the hexagon socket; the hydraulic pump station and the hydraulic wrench are connected by a hydraulic oil pipe.

[0068] The control device 5 includes a remote controller for the electric push rod 32 and a hydraulic remote controller. The remote controller for the electric push rod 32 can control the extension and contraction of the telescopic rod of the electric push rod 32, and the hydraulic remote controller controls the supply and release of torque in the positive and reverse directions of the hydraulic wrench.

[0069] It is worth noting that the auxiliary device 10 for the tower of a wind turbine generator set of the present application can be used during the hoisting process of the tower 20 of the wind turbine generator set, or during the 500-hour maintenance of the wind turbine generator set, or the torque maintenance of the connecting bolts 40 of the tower 20 during the annual maintenance operation.

[0070] In actual use, step one, during the hoisting process of the wind turbine tower 20: all the bolts on the connecting flange platform 30 between the upper tower section 20 and the fixed lower tower section 20 are passed from bottom to top through the connecting holes and the gaskets placed on the flange platform 30 of the upper tower section 20, and pre-fixed with nuts.

[0071] Step 2: First, transport the hydraulic wrench, hydraulic pump station and hydraulic oil pipe to the working platform (i.e. flange platform 30) at the top of the lower tower 20 segment; take the hydraulic wrench out of the tool box and place it on the tower 20 working platform, take out the square drive shaft, insert it into the hydraulic wrench and fix it with a quick-locking cover; adjust the angle of the reaction force arm 43 to a suitable position; connect and fix the hexagon socket with the square drive shaft; then move the assembled fastening component 4 to the top of the flange platform 30 and insert the hexagon socket into the nut, and use the hydraulic oil pipe to connect the hydraulic wrench to the hydraulic pump station. Among them, when performing step 2, different types of hydraulic wrenches and hexagon sockets can be replaced for different models to perform torque tightening for different models of towers 20 and different connection sections of wind turbines.

[0072] Step 3, unfold the mounting frame 1, open the vertical bracket 12 to the 90° position, adjust the position of the diagonal bracket 13, and use the quick ball head pin 14 to pass through the holes of the vertical bracket 12 and the diagonal bracket 13 to fix the two; place the unfolded mounting frame 1 directly above the flange platform 30, brake and lock the casters 121 of the vertical bracket 12, and then place the first adjustment component 2 at the set position.

[0073] Step 4. Screw the lifting lug 33 matching the hydraulic wrench into the fixed threaded hole of the hydraulic wrench; turn on the power of the electric push rod 32, operate the remote control of the electric push rod 32 to lower the telescopic rod of the electric push rod 32 to a suitable position; use the connecting ring 34 to connect the electric push rod 32 to the lifting lug 33; turn on the power of the hydraulic pump station, and control the output pressure value of the hydraulic pump station according to the set tightening torque of the connecting bolt 40.

[0074] Step 5: Operate the hydraulic remote control to start the hydraulic pump station and perform the first torque tightening on the connecting bolt 40 at the current position; start the hydraulic pump station again to perform the second torque tightening on the connecting bolt 40 at the current position; after completing the second torque tightening of the connecting bolt 40, operate the hydraulic remote control to release the pressure so as to move the hydraulic wrench to the position of the next connecting bolt 40.

[0075] Step 6. Operate the electric push rod 32 remote control to retract and raise the hydraulic wrench; use the slide plate 21 to move the hydraulic wrench to the top of the next connecting bolt 40; operate the electric push rod 32 remote control to slowly lower the electric push rod 32 until the hexagon socket contacts the connecting bolt 40; then manually perform auxiliary operation to rotate the hydraulic wrench to adjust the hexagon socket to match the angle of the next connecting bolt 40; continue to operate the electric push rod 32 remote control to lower the hydraulic wrench until the hexagon socket is firmly seated on the flange platform 30.

[0076] Step 7, repeating steps 5 and 6, the auxiliary device for controlling torque tightening continues to tighten the torque of the next adjacent connecting bolt 40 until all the connecting bolts 40 on the flange platform 30 of the tower 20 of this layer are tightened.

[0077] Step 8. Operate the electric push rod 32 remote control to retract and raise the hydraulic wrench; open the brake of the caster 121 of the vertical bracket 12; push the mounting frame 1 to move to a suitable position above the next connecting bolt 40; lock the caster 121 of the vertical bracket 12; operate the electric push rod 32 remote control to slowly lower the electric push rod 32 until the hexagon socket contacts the connecting bolt 40; then manually perform auxiliary operation to rotate the hydraulic wrench to adjust the hexagon socket to match the angle of the next connecting bolt 40; continue to operate the electric push rod 32 remote control to lower the hydraulic wrench until the hexagon socket is firmly seated on the flange platform 30.

[0078] Step nine, repeating steps five and eight, controlling the torque tightening auxiliary device to skip several connecting bolts 40, and continue to work on the connecting bolts 40 that need torque tightening; until all the connecting bolts 40 that need torque tightening are completed.

[0079] Step 10: After completing the torque maintenance of the tower 20, dismantle and remove all tools in the reverse order of steps 2 to 4.

[0080] Among them, by performing steps five, six, and seven, the torque tightening of the connecting bolts 40 connecting the tower 20 during wind turbine hoisting and the 500-hour maintenance of the wind turbine generator set, which require torque maintenance of all the connecting bolts 40 of the tower 20, can be completed; or by performing steps five, eight, and nine, the daily maintenance of the wind turbine, the annual maintenance, etc., which only require the extraction of some connecting bolts 40 for torque maintenance, can be completed.

[0081] It should be noted that the above structure is only used for illustration and does not represent a limitation thereto.

[0082] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0084] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0087] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An auxiliary device (10) for a tower of a wind turbine generator set, characterized in that: include: A mounting frame (1) and a first adjustment component (2), wherein the first adjustment component (2) is slidably mounted on the mounting frame (1) along a first direction; A second adjusting component (3) and a fastening component (4), wherein the second adjusting component (3) is mounted on the first adjusting component (2), the fastening component (4) is connected to the second adjusting component (3), the fastening component (4) comprises a fastener (41) and a driving component (42), the driving component (42) is used to drive the fastener (41) to rotate, and the second adjusting component (3) is configured to drive the fastening component (4) to move along a second direction, and the second direction is arranged to intersect with the first direction.

2. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 1, characterized in that: The mounting frame (1) is provided with a slide rail (111), the first adjustment component (2) comprises a slide plate (21) and a pulley (22), the second adjustment component (3) is mounted on the slide plate (21), the pulley (22) is rotatably mounted on the slide plate (21), and the pulley (22) is slidably matched with the slide rail (111).

3. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 2, characterized in that: The slide rail (111) comprises a first slide rail (1111) and a second slide rail (1112) which are spaced apart from each other; the pulley (22) comprises a first pulley (221) and a second pulley (222); the first pulley (221) and the second pulley (222) are respectively located on two opposite sides of the slide plate (21); the first pulley (221) is in sliding cooperation with the first slide rail (1111); and the second pulley (222) is in sliding cooperation with the second slide rail (1112).

4. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 3, characterized in that: An escape space (16) is formed between the first slide rail (1111) and the second slide rail (1112), and at least a portion of the second adjustment component (3) is inserted into the escape space (16) to be connected to the fastening component (4).

5. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 4, characterized in that: The second adjustment component (3) comprises a fixing frame (31) and an electric push rod (32); the fixing frame (31) is connected to the slide plate (21), and the slide plate (21) is provided with an avoidance hole (211) connected to the avoidance space (16); one end of the electric push rod (32) is fixed to the fixing frame (31) and the other end is passed through the avoidance hole (211) and extends into the avoidance space (16); the other end of the electric push rod (32) is connected to the fastening component (4).

6. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 5, characterized in that: The second adjustment component (3) further comprises: a lifting ear (33) and a connecting ring (34), wherein the connecting ring (34) is connected to the other end of the electric push rod (32), and the lifting ear (33) is connected between the connecting ring (34) and the fastening component (4).

7. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 1, characterized in that: The mounting frame (1) comprises a horizontal support (11) and a vertical support (12), the first adjustment component (2) is mounted on the horizontal support (11), the horizontal support (11) and the vertical support (12) are rotatably connected, and the mounting frame (1) has a storage state and an expanded state. In the storage state, the vertical support (12) is arranged parallel to the horizontal support (11), and in the expanded state, the vertical support (12) is perpendicular to the horizontal support (11).

8. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 7, characterized in that: In the unfolded state, an operating space is defined between the horizontal support (11) and the vertical support (12), and the fastening assembly (4) is located in the operating space.

9. The auxiliary device (10) for a tower of a wind turbine generator set according to claim 1, characterized in that: The invention also comprises a control device (5), wherein the control device (5) is electrically connected to the second adjusting component (3), and the control device (5) is used to control the second adjusting component (3) to drive the fastening component (4) to move along the second direction; the control device (5) is electrically connected to the driving member (42), and the control device (5) is used to control the driving member (42) to drive the fastening member (41) to rotate.

10. The auxiliary device (10) for a tower of a wind turbine generator set according to any one of claims 1 to 9, characterized in that: The first direction is a horizontal direction, and the second direction is a vertical direction.

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