A medium-large wind power blade installation auxiliary positioning support

Abstract

The utility model relates to the field of wind power installation technology especially is concerned on a kind of auxiliary positioning support for middle large wind power blade installation, it includes platform plate, detachable clamping gripper of blade is installed in the platform plate bottom, platform plate top is installed with rotary table, rotary table is fixedly connected with mounting seat, mounting seat is vertically rotatably connected with telescopic arm, the hydraulic cylinder two for driving telescopic arm vertical rotation is hinged between telescopic arm and rotary table, telescopic arm end is installed with the ring, the locating column that cooperates with ring is installed on nacelle. First, control gripper to clamp blade, then hoist blade, in the process that blade is butted nacelle, control rotary table horizontal rotation, control the hydraulic cylinder two to drive telescopic arm vertical rotation, hook ring is hung on locating column, adjust blade position, control rotary table rotation, control telescopic arm contraction, blade is pulled close to nacelle, make blade and nacelle accurate butt joint, to reduce the influence of wind on installation process, improve the efficiency and safety of installation.

Description

Technical Field

[0001] This utility model relates to the field of wind power installation technology, and in particular to an auxiliary positioning bracket for installing medium and large wind turbine blades. Background Technology

[0002] During wind turbine blade installation, the blades, being at high altitudes, are significantly affected by wind forces. This is especially true when connecting the blades to the nacelle, requiring constant adjustments to the blade angle. This process is often time-consuming and heavily influenced by wind, resulting in low installation efficiency and the risk of collisions due to connection errors. Therefore, improving the stability, safety, and efficiency of medium- and large-sized wind turbine blade installation is a continuous research topic in the wind power technology field. Utility Model Content

[0003] To ensure safe and efficient installation of wind turbine blades, this utility model provides an auxiliary positioning bracket for installing medium and large-sized wind turbine blades.

[0004] The auxiliary positioning bracket for installing medium and large wind turbine blades provided by this utility model adopts the following technical solution: An auxiliary positioning bracket for installing medium and large wind turbine blades includes a platform plate, a detachable gripper for clamping the blade is installed at the bottom of the platform plate, a turntable is installed at the top of the platform plate, a mounting base is fixedly connected to the turntable, a telescopic arm is vertically rotatably connected to the mounting base, a hydraulic cylinder is hinged between the telescopic arm and the turntable for driving the telescopic arm to rotate vertically, a hanging ring is installed at the end of the telescopic arm, and a positioning column that cooperates with the hanging ring is installed on the nacelle.

[0005] By adopting the above technical solution, the staff first controls the gripper to clamp the blade, then lifts the blade. During the blade docking with the nacelle, the turntable is controlled to rotate horizontally, and the hydraulic cylinder secondary drive is controlled to rotate the telescopic arm vertically, so that the hanging ring is aligned with the positioning post on the nacelle and the hanging ring hook is hooked on the positioning post. Then, the blade position is adjusted synchronously, the turntable is controlled to rotate, and the telescopic arm is controlled to retract, thereby pulling the blade closer to the nacelle and accurately docking the blade with the nacelle, reducing the impact of wind on the installation process and improving the efficiency and safety of the installation. After the blade is installed, the gripper is controlled to open, and then the bracket is lowered.

[0006] Optionally, the hanging ring is rotatably mounted at the end of the telescopic arm, and the telescopic arm is equipped with a height adjustment mechanism for driving the hanging ring to rotate vertically.

[0007] By adopting the above technical solution, the hanging ring can be driven to rotate up and down by the height adjustment mechanism, which makes it easier to hook the hanging ring onto the positioning column and improves the installation efficiency.

[0008] Optionally, an L-shaped mounting plate is vertically fixed to the end of the telescopic boom, and a mounting groove is opened at the end of the telescopic boom. A fixing rod is fixed to the outside of the hanging ring, and the fixing rod is rotatably connected to the mounting groove through a rotating shaft. A hydraulic cylinder is hinged between the end of the fixing rod and the top of the mounting plate.

[0009] By adopting the above technical solution, the L-shaped mounting plate is used to install and support the hydraulic cylinder three. The fixed rod is fixedly connected to the hanging ring. By driving the fixed rod to rotate along the rotating shaft, the hanging ring can be rotated, which is convenient to operate.

[0010] Optionally, the gripper includes two hanging plates vertically fixed to the bottom surface of the platform plate. The two hanging plates are parallel to each other, and a hanging rod is fixed between the two hanging plates. Multiple pairs of clamping plates for clamping and fixing blades are rotatably installed on the hanging rod. A hydraulic cylinder for driving the clamping plates to rotate is installed between the clamping plates and the platform plate.

[0011] By adopting the above technical solution, the hydraulic cylinder can drive the clamping plate blades, which is very convenient to operate and helps to improve installation efficiency.

[0012] Optionally, a connecting rod is fixed between two clamping plates that are different pairs and located on the same side, and a hydraulic cylinder is hinged between the platform plate and the connecting rod.

[0013] By adopting the above technical solution, the connecting rod can drive the two clamping plates to rotate simultaneously, which can reduce the number of hydraulic cylinders used and facilitate operation.

[0014] Optionally, multiple lifting rings are installed on the top surface of the platform.

[0015] By adopting the above technical solution, workers can lower the support frame using the lifting rings.

[0016] Optionally, four lifting rings are provided and distributed at the midpoints of the four sides of the platform.

[0017] By adopting the above technical solution, the support points are set symmetrically, which facilitates the improvement of hoisting stability.

[0018] Optionally, a honeycomb washer is fixedly installed inside the hanging ring.

[0019] By adopting the above technical solution, the honeycomb gasket achieves the effect of buffering impact.

[0020] In summary, this utility model has at least one of the following beneficial technical effects: The workers first control the gripper to clamp the blade, then lift the blade. During the blade docking process with the nacelle, they control the turntable to rotate horizontally and control the hydraulic cylinder secondary drive to rotate the telescopic arm vertically, so that the hanging ring is aligned with the positioning post on the nacelle and the hanging ring hook is hung on the positioning post. Then, the blade position is adjusted synchronously, the turntable is rotated, and the telescopic arm is retracted, thereby pulling the blade closer to the nacelle and accurately docking the blade with the nacelle. This reduces the impact of wind on the installation process and improves the efficiency and safety of the installation. The hanging ring can be driven to rotate up and down by the height adjustment mechanism, which makes it easy to hook the hanging ring onto the positioning post and improves installation efficiency; The honeycomb gaskets effectively cushion the impact. Attached Figure Description

[0021] Figure 1 This is a front view of an auxiliary positioning bracket for installing medium and large wind turbine blades according to an embodiment of this utility model.

[0022] Figure 2 This is a side view of an auxiliary positioning bracket for installing medium and large wind turbine blades according to an embodiment of this utility model.

[0023] Figure 3 This is a schematic diagram of the height adjustment mechanism according to an embodiment of the present utility model.

[0024] Figure 4 This is a schematic diagram of the lifting ring structure according to an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Platform plate; 2. Grab; 20. Hanging plate; 21. Hanging rod; 22. Clamping plate; 23. Connecting rod; 24. Hydraulic cylinder one; 3. Turntable; 30. Mounting base; 31. Hydraulic cylinder two; 4. Telescopic arm; 40. Mounting groove; 5. Hanging ring; 50. Fixing rod; 51. Honeycomb washer; 6. Height adjustment mechanism; 60. Mounting plate; 61. Hydraulic cylinder three; 62. Rotating shaft; 7. Hanging ring. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 The present invention will be described in further detail below.

[0027] This utility model discloses an auxiliary positioning bracket for installing medium and large wind turbine blades. (Refer to...) Figure 1 and Figure 2 An auxiliary positioning bracket for installing medium and large wind turbine blades includes a platform plate 1. A gripper 2 for clamping the blade is installed at the bottom of the platform plate 1. The gripper 2 includes two hanging plates 20 that are vertically fixed to the bottom surface of the platform plate 1. The two hanging plates 20 are parallel to each other, and a hanging rod 21 is fixed between the two hanging plates 20. The hanging rod 21 has a circular cross section.

[0028] Reference Figure 1and Figure 2 Two pairs of clamping plates 22 are rotatably connected to the boom 21. Each pair of clamping plates 22 includes two arc-shaped clamping plates 22 with their arc-shaped openings facing each other. The clamping plates 22 are used to clamp and fix the blades. A connecting rod 23 is fixedly connected between two clamping plates 22 that belong to different pairs and are located on the same side. A hydraulic cylinder 24 is hinged between the platform plate 1 and the connecting rod 23 to drive the connecting rod 23 to move. The hydraulic cylinder 24 can drive the connecting rod 23, thereby causing the clamping plates 22 to rotate around the boom 21 as an axis.

[0029] Reference Figure 1 and Figure 2 A turntable 3 is installed on the top surface of the platform plate 1. The turntable 3 is driven by electricity to rotate. A mounting base 30 is fixed to the top surface of the turntable 3. A telescopic arm 4 is hinged on the mounting base 30. A hydraulic cylinder 31 is hinged between the telescopic arm 4 and the turntable 3. The turntable 3 can drive the telescopic arm 4 to rotate horizontally, and the hydraulic cylinder 31 can drive the telescopic arm 4 to rotate vertically.

[0030] Reference Figures 2-4 A hanging ring 5 is provided at the end of the telescopic boom 4 away from the mounting base 30. Correspondingly, a positioning post for hanging the hanging ring 5 is installed on the nacelle. A fixing rod 50 is fixed to the outer wall of the hanging ring 5, and a honeycomb washer 51 is installed on the inner wall of the hanging ring 5, which provides an elastic cushioning effect. The vertical flipping angle of the hanging ring 5 is adjusted by a height adjustment mechanism 6, which includes a mounting plate 60 fixed to the end of the telescopic boom 4. The mounting plate 60 is L-shaped.

[0031] Reference Figure 3 A hydraulic cylinder 61 is hinged to the top of the mounting plate 60. A mounting groove 40 is provided at the end of the telescopic arm 4. The middle part of the fixed rod 50 is rotatably connected to the mounting groove 40 via a rotating shaft 62. The end of the fixed rod 50 is hinged to the piston rod of the hydraulic cylinder 61. Lifting rings 7 are installed at the midpoints of the four sides of the top surface of the platform plate 1, allowing the auxiliary positioning bracket to be lifted.

[0032] The implementation principle of an auxiliary positioning bracket for installing medium and large wind turbine blades according to an embodiment of this utility model is as follows: the workers first control the hydraulic cylinder 24 to drive the clamping plate 22 to clamp the blade, and then lift the blade. During the process of connecting the blade to the nacelle, the turntable 3 is controlled to rotate horizontally, and the hydraulic cylinder 31 is controlled to drive the telescopic arm 4 to rotate vertically, so that the hanging ring 5 is aligned with the positioning column on the nacelle.

[0033] Subsequently, hydraulic cylinder 361 drives the hanging ring 5 to rotate, thus hooking the hanging ring 5 onto the positioning column. Simultaneously, the blade position is adjusted, turntable 3 is rotated, and telescopic arm 4 is retracted, pulling the blade closer to the nacelle for accurate alignment. This reduces the impact of wind on the installation process, improving efficiency and safety. After the blade is installed, clamp 22 is opened, and the auxiliary positioning bracket is lowered using lifting ring 7 and ropes.

[0034] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An auxiliary positioning bracket for installing medium and large wind turbine blades, characterized in that: The system includes a platform plate (1), a detachable gripper (2) for holding blades is installed at the bottom of the platform plate (1), a turntable (3) is installed at the top of the platform plate (1), a mounting base (30) is fixedly connected to the turntable (3), a telescopic arm (4) is vertically rotatably connected to the mounting base (30), a hydraulic cylinder (31) for driving the telescopic arm (4) to rotate vertically is hinged between the telescopic arm (4) and the turntable (3), a hanging ring (5) is installed at the end of the telescopic arm (4), and a positioning column that cooperates with the hanging ring (5) is installed on the nacelle.

2. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 1, characterized in that: The hanging ring (5) is rotatably mounted at the end of the telescopic arm (4), and the telescopic arm (4) is provided with a height adjustment mechanism (6) for driving the hanging ring (5) to rotate vertically.

3. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 2, characterized in that: An L-shaped mounting plate (60) is vertically fixed to the end of the telescopic arm (4). An mounting groove (40) is opened at the end of the telescopic arm (4). A fixing rod (50) is fixed to the outside of the hanging ring (5). The fixing rod (50) is rotatably connected to the mounting groove (40) through a rotating shaft (62). The hydraulic cylinder three (61) is hinged between the end of the fixing rod (50) and the top of the mounting plate (60).

4. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 1, characterized in that: The gripper (2) includes two hanging plates (20) vertically fixed to the bottom surface of the platform plate (1). The two hanging plates (20) are parallel to each other. A lifting rod (21) is fixed between the two hanging plates (20). Multiple pairs of clamping plates (22) for clamping and fixing blades are rotatably installed on the lifting rod (21). A hydraulic cylinder (24) for driving the clamping plates (22) to rotate is installed between the clamping plates (22) and the platform plate (1).

5. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 4, characterized in that: A connecting rod (23) is fixed between two clamping plates (22) that belong to different pairs and are located on the same side, and a hydraulic cylinder (24) is hinged between the platform plate (1) and the connecting rod (23).

6. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 1, characterized in that: Multiple lifting rings (7) are installed on the top surface of the platform plate (1).

7. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 6, characterized in that: There are four lifting rings (7) and they are located at the midpoints of the four sides of the platform plate (1).

8. The auxiliary positioning bracket for installing medium and large wind turbine blades according to claim 1, characterized in that: A honeycomb gasket (51) is fixedly installed inside the hanging ring (5).

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