Hoisting and transferring device suitable for fan
By designing a lifting and transport device on the fan, using fixed pulley guide crane cable lifting tools and spare parts, the time-consuming and labor-intensive problem in fan maintenance is solved, and the improvement efficiency and labor intensity are improved.
Patent Information
- Application Number
- CN202421837375.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During the fan maintenance process, it takes time and effort to lift tools and spare parts for the operator to enter the cabin, especially the 20-meter height difference between the last tower and the cabin takes at least thirty minutes.
A lifting and transport device suitable for fans is designed, including a rectangular frame structure and a fixed pulley arranged horizontally in the installation frame. The mounting frame buckle is installed on the ladder protection frame. The fixed pulley is located directly above the ladder protection frame. The fixed pulley is lifted by the fixed pulley guide crane cable to reduce the lifting time.
Through this device, the lifting time of tools and spare parts is saved at least 20 minutes, which improves work efficiency and reduces the labor intensity of the workers.
Smart Images
Figure CN223163108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fan hoisting devices, in particular to a hoisting and transferring device suitable for fans. Background Art
[0002] When maintaining a fan, the operator carries a small amount of tools and spare parts. The operator will choose to be transported to the platform of the last section of the tower barrel by the lift. Since the last section of the tower barrel and the nacelle cannot be hoisted by the lift, the operator needs to climb the ladder into the nacelle, and then use a rope to lift a small amount of tools and spare parts into the nacelle. There is a height difference of about 20 meters between the lift platform and the nacelle, and it usually takes at least thirty minutes to lift, which is time-consuming and laborious. Summary of the Invention
[0003] The technical problem to be solved by the utility model is that it is time-consuming and laborious for the operator to lift tools and spare parts into the nacelle.
[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a hoisting and transferring device suitable for fans, including a mounting frame with a rectangular frame structure and a fixed pulley horizontally and rotatably arranged in the mounting frame. The mounting frame is buckled on the protective frame of the ladder opening, and the opposite inner side walls of the vertical plates on both sides of the mounting frame are attached to the opposite outer side walls of the protective frame of the ladder opening. A first cross bar and a second cross bar are connected between the two vertical plates. When the mounting frame is buckled, the first cross bar is located above the inner side of the protective frame of the ladder opening, and the second cross bar is located outside the protective frame of the ladder opening. The fixed pulley is connected to the first cross bar.
[0005] Preferably, a buckling block is fixedly connected to the side wall of the first cross bar, and a connecting groove for inserting the side wall of the protective frame of the ladder opening is provided at the bottom of the buckling block.
[0006] Preferably, a locking bolt is threadedly connected to the bottom of the buckling block. The connecting hole of the locking bolt communicates with the connecting groove, and the locking bolt is perpendicular to the connecting groove.
[0007] Preferably, when the buckling block is connected to the protective frame of the ladder opening, the side wall of the second cross bar is attached to the side wall of the protective frame of the ladder opening.
[0008] Preferably, a connecting block is fixedly arranged on the inner side wall of the first cross bar. A slope is provided at the top of the connecting block, and an ear plate is vertically and fixedly installed on the top surface of the connecting block. The fixed pulley is rotatably connected to the ear plate.
[0009] Preferably, the cross section of the vertical plate is a right trapezoid.
[0010] The utility model provides a hoisting and transferring device suitable for a fan. By arranging an installation frame to be buckled on the protective frame of the ladder opening, a fixed pulley is rotatably arranged inside the installation frame. The fixed pulley is located directly above the protective frame of the ladder opening. The crane cable used for hoisting outside the fan tower barrel in the engine room is introduced into the ladder passage through the fixed pulley. The crane in the engine room is used to hoist tools and spare parts. Through this hoisting and transferring device, the hoisting of tools and spare parts saves at least 20 minutes, improves work efficiency, and at the same time reduces the labor intensity of operators. Brief Description of the Drawings
[0011] The following further describes the present utility model in conjunction with the drawings and embodiments:
[0012] Figure 1 It is a schematic structural diagram of the protective frame of the ladder opening.
[0013] Figure 2 It is a schematic structural diagram of the installation frame in the embodiment of the present utility model.
[0014] Figure 3 It is a schematic vertical sectional structural diagram of the installation state in the embodiment of the present utility model.
[0015] In the figure: 1. Protective frame of the ladder opening; 2. Vertical plate; 3. First cross bar; 4. Buckling block; 5. Locking bolt; 6. Second cross bar; 7. Connecting block; 8. Ear plate; 9. Fixed pulley. Specific Embodiments
[0016] As Figures 1-3 shown. The utility model provides a hoisting and transferring device suitable for a fan, including an installation frame with a rectangular frame structure and a fixed pulley 9 rotatably arranged horizontally inside the installation frame. The installation frame is buckled on the protective frame 1 of the ladder opening, and the relative inner side walls of the vertical plates 2 on both sides of the installation frame are attached to the relative outer side walls of the protective frame 1 of the ladder opening. A first cross bar 3 and a second cross bar 6 are connected between the two vertical plates 2. When the installation frame is buckled, the first cross bar 3 is located above the inner side of the protective frame 1 of the ladder opening, and the second cross bar 6 is located outside the protective frame 1 of the ladder opening. The fixed pulley 9 is connected to the first cross bar 3.
[0017] After the operator enters the interior of the nacelle through the ladder passage, the installation frame is buckled onto the protective frame 1 at the ladder opening. After the buckling is completed, since the vertical plate 2 fits against the outer side wall of the protective frame 1 at the ladder opening, the stability of the buckling of the installation frame can be ensured. The first crossbar 3 is located above the inner side of the protective frame 1 at the ladder opening, so that the fixed pulley 9 is located above the ladder passage. The second crossbar 6 is located outside the protective frame 1 at the ladder opening and will not interfere with the lifting of tools and spare parts. Before lifting, the operator pulls the crane cable used for hoisting outside the wind turbine tower barrel inside the nacelle into the ladder passage, and uses the fixed pulley 9 for cable guiding. Moreover, the annular groove in the middle of the outer circle of the fixed pulley 9 can limit the cable. The cable is lowered to the platform of the last section of the tower barrel. The operator on the tower barrel platform ties the tools and spare parts to the cable. The operator inside the nacelle controls the crane to lift, and the tools and spare parts are lifted through the ladder passage. After the lifting is completed, the installation frame is removed from the protective frame 1 at the ladder opening, which does not affect the subsequent passage of operators in the ladder passage.
[0018] As Figure 2 and Figure 3 shown, to achieve the stable installation of the hoisting and transfer device on the protective frame 1 at the ladder opening. A buckling block 4 is fixedly connected to the side wall of the first crossbar 3, and a connection groove for inserting the side wall of the protective frame 1 at the ladder opening is provided at the bottom of the buckling block 4. By connecting the buckling block 4 to the first crossbar 3 and cooperating with the cooperation between the vertical plate 2 and the protective frame 1 at the ladder opening, when the hoisting and transfer device is installed on the protective frame 1 at the ladder opening, the installation frame will not move horizontally when lifting tools and spare parts, ensuring the safety of lifting tools and spare parts.
[0019] As Figure 2 and Figure 3 shown, to further improve the connection stability between the installation frame and the protective frame 1 at the ladder opening. A locking bolt 5 is threadedly connected to the bottom of the buckling block 4. The connection hole of the locking bolt 5 communicates with the connection groove, and the locking bolt 5 is perpendicular to the connection groove. When the installation frame is buckled onto the protective frame 1 at the ladder opening, the opposite side walls of the vertical plate 2 fit against the outer side wall of the protective frame 1 at the ladder opening. The buckling block 4 cooperates with the top of the side wall of the protective frame 1 at the ladder opening through the connection groove, and then by tightening the locking bolt 5, the bolt head of the locking bolt 5 firmly presses against the protective frame 1 at the ladder opening.
[0020] As Figure 3 shown, to further improve the connection stability between the installation frame and the protective frame 1 at the ladder opening. When the buckling block 4 is connected to the protective frame 1 at the ladder opening, the side wall of the second crossbar 6 fits against the side wall of the protective frame 1 at the ladder opening.
[0021] As Figure 3As shown. A connecting block 7 is fixedly arranged on the inner side wall of the first cross bar 3. A slope is arranged on the top of the connecting block 7. An ear plate 8 is vertically and fixedly installed on the top surface of the connecting block 7. The fixed pulley 9 is rotatably connected to the ear plate 8. By arranging the connecting block 7 with a slope on the top for installing the ear plate 8, since the force received by the cooperation of the fixed pulley 9 and the cable is obliquely downward, and the force direction is close to being perpendicular to the slope of the connecting block 7. By installing the ear plate 8 through the slope of the connecting block 7, compared with the installation form on the vertical surface, the support is more stable.
[0022] As Figure 2 shown, to improve the stability of the support of the installation frame. The cross section of the vertical plate 2 is in the shape of a right trapezoid.
Claims
1. A hoisting and transfer device applicable to a fan, characterized in that: It includes an installation frame with a rectangular frame structure and a fixed pulley (9) horizontally rotatably arranged inside the installation frame. The installation frame is buckled on the protective frame (1) at the ladder opening, and the relative inner side walls of the vertical plates (2) on both sides of the installation frame are attached to the relative outer side walls of the protective frame (1) at the ladder opening. A first cross bar (3) and a second cross bar (6) are connected between the two vertical plates (2). When the installation frame is buckled, the first cross bar (3) is located above the inner side of the protective frame (1) at the ladder opening, and the second cross bar (6) is located outside the protective frame (1) at the ladder opening. The fixed pulley (9) is connected to the first cross bar (3).
2. The hoisting and transferring device applicable to a fan according to claim 1, wherein: A buckling block (4) is fixedly connected to the side wall of the first cross bar (3), and a connecting groove for inserting the side wall of the protective frame (1) at the ladder opening is provided at the bottom of the buckling block (4).
3. The hoisting and transfer device for a fan according to claim 2, wherein: A locking bolt (5) is threadedly connected to the bottom of the buckling block (4). The connection hole of the locking bolt (5) communicates with the connecting groove, and the locking bolt (5) is arranged perpendicular to the connecting groove.
4. The hoisting and transferring device applicable to a fan according to claim 2, wherein: When the buckling block (4) is connected to the protective frame (1) at the ladder opening, the side wall of the second cross bar (6) is attached to the side wall of the protective frame (1) at the ladder opening.
5. The hoisting and transferring device applicable to a fan according to claim 1, wherein: A connecting block (7) is fixedly arranged on the inner side wall of the first cross bar (3). An inclined surface is provided at the top of the connecting block (7), and an ear plate (8) is vertically and fixedly installed on the top surface of the connecting block (7). The fixed pulley (9) is rotatably connected to the ear plate (8).
6. The hoisting and transferring device applicable to a fan according to claim 1, characterized in that: The cross section of the vertical plate (2) is a right trapezoid.