Portable multipurpose hoisting tool in fan cabin

Abstract

The invention provides a portable multi-purpose hoisting tool in a fan cabin, and relates to the field of wind turbine generators, the portable multi-purpose hoisting tool comprises a cabin base frame, a plurality of hoisting rings are fixedly mounted on the cabin base frame, a plurality of screws are arranged on the cabin base frame, a tool frame is mounted on the screws, a first nut is arranged below the tool frame, and a second nut is arranged below the tool frame. The first nut is matched with the screw rod, a fixing frame is fixedly installed below the tool frame, and the fixing frame is matched with the hoisting ring. The portable multi-purpose hoisting tool has the advantages that a set of portable multi-purpose hoisting tool is specially designed and manufactured by utilizing a hoisting point reserved in a cabin structure, and the tool can be flexibly applied to maintenance or replacement operation of large components (such as a yaw speed reducer, a yaw motor, a gearbox oil pump and a high-speed brake disc) in a cabin; the problems that manual carrying is difficult and the operation intensity is large are effectively solved, the physical burden of operators is remarkably relieved, and the efficiency and safety of maintenance work are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of wind turbine generators, and in particular to a portable multi-purpose hoisting tool for wind turbine nacelles. Background Technology

[0002] In the routine maintenance and overhaul of wind turbines, the replacement and repair of large components inside the nacelle is an important and complex task. These large components mainly include the yaw reducer, yaw motor, gearbox oil pump, etc., and their individual weights typically range from 100kg to 600kg. Due to the limited space inside the nacelle and the lack of large lifting equipment such as overhead cranes, replacing or repairing these large components is quite difficult and presents many challenges.

[0003] Currently, when replacing components, especially those requiring precise alignment such as yaw motors, operators typically rely on manual labor for handling and positioning. During the installation of the motor shaft with the hole, two or more operators are often needed to lift it together. This not only results in extremely high labor intensity and low work efficiency but also poses serious safety hazards. Due to the large weight of the components, even slight carelessness during operation can cause personal injury or equipment damage. Furthermore, manual operation may lead to low hole alignment accuracy, affecting the installation quality and service life of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a portable, multi-purpose hoisting tool for wind turbine nacelles, which solves the problems of high manual handling intensity, poor positioning accuracy, and high safety risks during the maintenance of large components in existing wind turbine nacelles due to the lack of overhead cranes.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0006] A portable multi-purpose hoisting tool for wind turbine nacelles includes: a nacelle base frame, on which multiple hoisting rings are fixedly installed; multiple screws are provided on the nacelle base frame; a tooling frame is installed on each screw; a first nut is provided under the tooling frame and matches the screw; a fixing frame is fixedly installed under the tooling frame and matches the hoisting rings; the hoisting rings are located between a pair of fixing frames; a circular column is installed between the hoisting rings and the fixing frames; a groove is provided on the circular column; a fixing pin is installed in the groove; and several threaded holes are drilled on the tooling frame.

[0007] The nacelle base frame serves as a fundamental base within the nacelle, facilitating the secure installation of other components. The lifting ring connects to the lifting equipment, ensuring the stability of other equipment installation and significantly improving operational flexibility. The screw rods provide support, facilitating the stable installation of the tooling frame and ensuring its horizontal mounting. This provides support for the tooling frame and allows for precise height adjustment via the screw rods, ensuring accurate operation of the subsequent boom. The tooling frame also provides a robust platform for supporting and securing other components, preventing displacement or falling during lifting.

[0008] The first nut is used to lock the screw, preventing it from loosening during operation and ensuring the stability and safety of the tool. The fixing bracket is used to fix the position of the lifting ring and the tooling frame. The fixing bracket and the lifting ring are fixed by the circular column, which ensures the stability of the tooling frame and prevents them from shifting during use, thus improving the overall stability of the tool. The circular column, as part of the support structure, provides additional strength and stability, ensuring that the tool will not deform or be damaged when lifting heavy objects. The threaded hole is used to connect the suspension arm, ensuring a tight connection between the suspension arm and the tooling frame, thus improving the overall strength.

[0009] As an improvement, a suspension arm is installed on the tooling frame, and multiple holes are drilled in the suspension arm. The holes match threaded holes, and multiple fasteners are installed between the threaded holes and the suspension arm.

[0010] The suspension boom is used to lift other components inside the cabin. By adjusting the angle and position of the suspension boom, the lifting angle and direction can be flexibly adjusted to meet different lifting needs. The fasteners facilitate a tight connection between the suspension boom and the tooling frame, ensuring the stability of the suspension boom and preventing it from loosening or shifting during use, thus improving the safety and reliability of the tool.

[0011] As an improvement, the suspension arm includes a support column and a suspension head, the suspension head being sleeved on the support column, and a bearing being installed between the support column and the suspension head.

[0012] The bearing design allows the suspension arm to rotate 360°, facilitating the hoisting of components behind it.

[0013] As an improvement, the number of lifting rings is four.

[0014] By setting up four lifting rings, the suspension arm can be installed in a suitable position, making it easier to lift components in different locations inside the cabin.

[0015] As an improvement, the tooling fixture has 8 threaded holes.

[0016] By setting eight threaded holes, the suspension arm can be fixed by selecting any four threaded holes, thus allowing the installation angle of the suspension arm to be selected.

[0017] As an improvement, the fastener includes a bolt and a second nut.

[0018] The installation of bolts and second nuts facilitates the joint fixing of the suspension arm to the tooling frame, improving stability.

[0019] As an improvement, a handle is installed on the suspension arm, which can control the suspension head to rotate 360°.

[0020] The beneficial effects of this invention are as follows: By utilizing the pre-reserved lifting points in the engine room structure, a set of portable multi-purpose lifting tools has been specially designed and manufactured. This tool can be flexibly applied to the maintenance or replacement of large components inside the engine room (such as yaw reducers, yaw motors, gearbox oil pumps, high-speed brake discs, etc.), effectively solving the problems of difficult manual handling and high operational intensity. It not only significantly reduces the physical burden on operators, but also greatly improves the efficiency and safety of maintenance work. Attached Figure Description

[0021] Figure 1 This is a perspective view of a portable multi-purpose hoisting tool for wind turbine nacelles according to the present invention.

[0022] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0023] Figure 3 This is a front view of a portable multi-purpose hoisting tool for wind turbine nacelles according to the present invention.

[0024] Figure 4 This is a right view of a portable multi-purpose hoisting tool for wind turbine nacelles according to the present invention.

[0025] In the diagram: 1. Cabin base frame; 2. Lifting ring; 3. Screw; 4. Tooling frame; 5. First nut; 6. Fixture; 7. Circular column; 8. Threaded hole; 9. Suspension arm; 10. Fixture. Detailed Implementation

[0026] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] like Figures 1 to 4 As shown, a portable multi-purpose hoisting tool for wind turbine nacelles includes: a nacelle base frame 1, multiple hoisting rings 2 fixedly installed on the nacelle base frame 1, multiple screws 3 provided on the nacelle base frame 1, a tooling frame 4 installed on the screws 3, a first nut 5 provided under the tooling frame 4, the first nut 5 matching the screws 3, a fixing frame 6 fixedly installed under the tooling frame 4, the fixing frame 6 matching the hoisting rings 2, the hoisting rings 2 being located between a pair of fixing frames 6, a circular column 7 installed between the hoisting rings 2 and the fixing frame 6, the circular column 7 having a groove, a fixing pin installed in the groove, and a number of threaded holes 8 drilled on the tooling frame 4.

[0028] The nacelle base frame 1 serves as the foundation base inside the nacelle, facilitating the secure installation of other components. The lifting ring 2 connects to the lifting equipment, ensuring the stability of other equipment installation and greatly improving operational flexibility. The screw 3 provides support, facilitating the stable installation of the tooling frame 4 and ensuring its horizontal installation on the screw 3. This provides support for the tooling frame 4 and allows for precise height adjustment on the screw 3, ensuring accurate operation of the subsequent lifting boom 9. The tooling frame 4 provides a sturdy platform for supporting and securing other components, preventing displacement or falling during lifting.

[0029] In addition, the first nut 5 is used to lock the screw 3, preventing it from loosening during operation and ensuring the stability and safety of the tool; the fixing bracket 6 is used to fix the position of the lifting ring 2 and the tooling frame 4. The fixing bracket 6 and the lifting ring 2 are fixed by the circular column 7, which can ensure the stability of the tooling frame 4 and ensure that they will not be displaced during use, thus improving the overall stability of the tool; the circular column 7, as part of the support structure, provides additional strength and stability, ensuring that the tool will not deform or be damaged when lifting heavy objects; the threaded hole 8 is used to connect the suspension arm 9, ensuring a tight connection between the suspension arm 9 and the tooling frame 4, thus improving the overall strength.

[0030] like Figures 2 to 4As shown, a suspension arm 9 is installed on the tooling frame 4. Multiple holes are drilled on the suspension arm 9, which match the threaded holes 8. Multiple fasteners 10 are installed between the threaded holes 8 and the suspension arm 9.

[0031] In addition, the suspension arm 9 is used to lift other components inside the cabin. By adjusting the angle and position of the suspension arm 9, the lifting angle and direction can be flexibly adjusted to meet different lifting needs. The fastener 10 facilitates a tight connection between the suspension arm 9 and the tooling frame 4, ensuring the stability of the suspension arm 9 and preventing it from loosening or shifting during use, thus improving the safety and reliability of the tool.

[0032] like Figures 2 to 4 As shown, the suspension arm 9 includes a support column and a suspension head. The suspension head is fitted onto the support column, and a bearing is installed between the support column and the suspension head. The bearing allows the suspension arm 9 to rotate 360°, facilitating the hoisting of components behind it.

[0033] like Figures 2 to 4 As shown, there are four lifting rings 2. By setting four lifting rings 2, the suspension arm 9 can be installed in a suitable position, which makes it easier to lift components in different positions inside the cabin.

[0034] like Figures 1 to 4 As shown, the tooling bracket 4 has eight threaded holes 8. By setting eight threaded holes 8, it is convenient to select any four threaded holes 8 for fixing the suspension arm 9, thereby allowing the installation angle of the suspension arm 9 to be selected.

[0035] like Figures 1 to 4 As shown, the fastener 10 includes a bolt and a second nut. The bolt and the second nut facilitate the connection and fixation of the suspension arm 9 to the tooling frame 4, improving stability. A handle is mounted on the suspension arm 9, which allows the suspension head to rotate 360°.

[0036] During use, firstly, select a suitable lifting ring 2 from the four lifting rings 2 and support the screw 3 on the lifting ring 2. Next, align the fixing bracket 6 with the lifting ring 2 and fix the tooling frame 4 on the screw 3. Tighten the first nut 5 to ensure the horizontal installation of the tooling frame 4. Insert the circular column 7 between the fixing bracket 6 and the lifting ring 2 and fix the circular column 7 with the fixing pin. Then, place the suspension arm 9 on the tooling frame 4. Select the four suitable threaded holes 8 as needed, align the suspension arm 9 with the threaded holes 8, and fix the suspension arm 9 with the fastener 10, thereby ensuring that the suspension arm 9 is installed relatively stably.

[0037] Then, by rotating the handle on the suspension arm 9, the suspension head on the suspension arm 9 can be rotated 360° via the bearing. According to the lifting requirements, the angle and position of the suspension head can be adjusted to ensure that it can flexibly adapt to different lifting directions, so that the suspension arm 9 can be accurately aligned with the parts to be lifted in the cabin, thus enabling safe and reliable lifting operations. Throughout the process, all connecting parts are ensured to be firmly fixed to prevent loosening or displacement, thereby improving the safety and stability of the tool.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable multi-purpose hoisting tool in a fan engine room, characterized in that, include: A nacelle base frame (1) is provided with multiple lifting rings (2) fixedly installed on the nacelle base frame (1). Multiple screws (3) are provided on the nacelle base frame (1). A tooling frame (4) is installed on the screws (3). A first nut (5) is provided under the tooling frame (4). The first nut (5) matches the screw (3). A fixing frame (6) is fixedly installed under the tooling frame (4). The fixing frame (6) matches the lifting rings (2). The lifting rings (2) are located between a pair of fixing frames (6). A circular column (7) is installed between the lifting rings (2) and the fixing frame (6). A groove is provided on the circular column (7). A fixing pin is installed in the groove. Several threaded holes (8) are drilled on the tooling frame (4).

2. A portable multi-purpose hoisting tool in a fan engine compartment according to claim 1, characterized in that, The tooling frame (4) is equipped with a suspension arm (9), which has multiple holes that match threaded holes (8). Multiple fasteners (10) are installed between the threaded holes (8) and the suspension arm (9).

3. The portable multi-purpose hoisting tool for wind turbine nacelles according to claim 1, characterized in that, The suspension arm (9) includes a support column and a suspension head, the suspension head being sleeved on the support column, and a bearing being installed between the support column and the suspension head.

4. The portable multi-purpose hoisting tool for wind turbine nacelles according to claim 1, characterized in that, The number of lifting rings (2) is 4.

5. A portable multi-purpose hoisting tool for wind turbine nacelles according to claim 2, characterized in that, The tooling fixture (4) has 8 threaded holes (8).

6. A portable multi-purpose hoisting tool for wind turbine nacelles according to claim 2, characterized in that, The fastener (10) includes a bolt and a second nut.

7. A portable multi-purpose hoisting tool for wind turbine nacelles according to claim 3, characterized in that, A handle is installed on the suspension arm (9), which can control the suspension head to rotate 360°.

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