Fan hoisting device

Abstract

The utility model discloses a fan hoisting device, including base, rotating mechanism, its including being located on the shaft sleeve of base, being located on the rotating shaft of shaft sleeve, support arm and support rod, the one end of support arm is sleeved on rotating shaft, and the both ends of support rod are respectively hinged with rotating shaft and the other end of support arm, hanging bracket, including mobile seat and the pulley block for sliding on support arm and being located on mobile seat, the support arm is I -shaped, and it includes middle part and the cross rail part of being located in the lower end of middle part, and the top surface of cross rail part gradually inclines downward from the two side directions of middle part, and two pulley blocks are respectively hung on the top surface of cross rail part two sides. The utility model provides a fan hoisting device, and the top surface of cross rail part of support arm gradually inclines downward from the two sides of middle part, and the inclined surface utilizes gravity and makes pulley block close to center and closely track naturally, improves the stability and smoothness of movement.

Description

Technical Field

[0001] This application relates to the field of hoisting technology, and in particular to wind turbine hoisting devices. Background Technology

[0002] When the existing hoisting equipment's gantry moves on the support arm (especially under load), it is prone to swaying, shifting, or jamming, affecting positioning accuracy and operational safety. Utility Model Content

[0003] To solve the above problems, this technical solution provides a wind turbine hoisting device.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] Wind turbine hoisting equipment, including

[0006] Base;

[0007] A rotating mechanism includes a bushing mounted on the base, a rotating shaft mounted on the bushing, a support arm, and a support rod; one end of the support arm is sleeved on the rotating shaft, and both ends of the support rod are hinged to the rotating shaft and the other end of the support arm, respectively.

[0008] A hanger, comprising a movable seat and a pulley assembly disposed on the movable seat and for sliding on the support arm;

[0009] The support arm is I-shaped and includes a middle part and a horizontal rail part located at the lower end of the middle part. The top surface of the horizontal rail part gradually slopes downward from the middle part to both sides.

[0010] The two pulley blocks are respectively attached to the top surfaces of the horizontal rail.

[0011] As described above, the wind turbine hoisting device includes a pulley block comprising a rotating pin on the movable seat and a wheel on the rotating pin. The wheel comprises a straight main body and a tapered portion that gradually narrows from the main body to the end of the rotating pin. The angle α between the tapered portion and the horizontal plane is equal to the inclination angle b of the top surface of the horizontal rail.

[0012] As described above, the wind turbine hoisting device has a U-shaped movable base, which includes a central frame and side frames respectively located on both sides of the central frame. Both side frames are provided with horizontal hanging holes.

[0013] As described above, the wind turbine hoisting device has multiple intermediate frames spaced apart, and each intermediate frame is provided with a longitudinal hanging hole.

[0014] As described above, the wind turbine hoisting device has a shoulder on the rotating shaft, and the shoulder is fixedly connected to the bushing so that the rotating shaft rotates synchronously with the support arm.

[0015] As described above, the wind turbine hoisting device has a baffle at the end of the support arm for blocking the hoisting frame.

[0016] As described above, in the wind turbine hoisting device, a deceleration mechanism is provided between the baffle and the bushing. The deceleration mechanism is used to provide resistance to prevent the support arm from rotating relative to the bushing when the hanger abuts against the baffle.

[0017] As described above, the wind turbine hoisting device includes a deceleration mechanism comprising a deceleration ring sleeved on the bushing, a connecting rod connected to the deceleration ring, and a spring disposed between the support arm and the baffle, the spring being used to drive the baffle to move closer to the support arm.

[0018] As described above, the wind turbine hoisting device has a sliding groove on the support arm, and a positioning pin passing through the sliding groove is provided between the baffle and the support arm.

[0019] The beneficial effects of this application are:

[0020] This invention provides a fan hoisting device. The top surface of the horizontal rail of the support arm gradually slopes downward from the middle to both sides, and the pulley block is hooked onto the top surface of the horizontal rail. This design is precisely to solve the problem of unstable movement of pulley blocks on traditional horizontal tracks. The inclined surface utilizes gravity to make the pulley block naturally move towards the center and fit tightly against the track, improving the stability and smoothness of movement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the structure of this application;

[0023] Figure 2 for Figure 1 A half-section view;

[0024] Figure 3 for Figure 1 The left view. Detailed Implementation

[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Wind turbine hoisting equipment, including

[0027] Base 1; Base 1 provides a stable foundation for the entire device, ensuring the overall stability and safety of the device during hoisting operations, and can be easily fixed to the working platform.

[0028] The rotating mechanism 2 includes a bushing 21 mounted on the base 1, a rotating shaft 22 mounted on the bushing 21, a support arm 23, and a support rod 24. One end of the support arm 23 is sleeved on the rotating shaft 22, and both ends of the support rod 24 are hinged to the rotating shaft 22 and the other end of the support arm 23, respectively. This rotating mechanism 2 is ingeniously designed, forming a four-bar linkage-like structure through the bushing 21, rotating shaft 22, and support rod 24. The pushing and pulling action of the support rod 24 makes the pitch angle adjustment of the support arm 23 effortless and controllable. After adjustment, the mechanism forms a stable triangular support structure, significantly enhancing the rigidity and load-bearing stability of the support arm 23 at different angles, preventing the boom from sagging or swaying during hoisting.

[0029] The lifting frame 3 includes a movable seat 31 and a pulley block 32 disposed on the movable seat 31 and used to slide on the support arm 23. The lifting frame 3 moves on the support arm 23 through the pulley block 32, which greatly reduces the moving resistance and makes it easy and smooth to adjust the horizontal position of the lifting point when lifting heavy objects, thereby improving the operating efficiency and positioning accuracy.

[0030] The support arm 23 is I-shaped, comprising a central section 231 and a horizontal rail section 232 located at the lower end of the central section 231. The top surface of the horizontal rail section 232 gradually slopes downward from the central section 231 towards both sides. The I-shaped structure gives the support arm 23 excellent bending strength and load-bearing capacity. The downward slope of the top surface of the horizontal rail section 232 forms a natural guide rail. Its core advantage lies in utilizing gravity to make the pulley block 32 attached to it tend to automatically return to the center, greatly improving the stability of the hanger 3 during movement and effectively suppressing lateral swaying.

[0031] The two pulley blocks 32 are respectively hooked onto the top surfaces of the transverse rail 232 on both sides. The two pulley blocks 32 are symmetrically hooked onto both sides of the inclined rail, which on the one hand ensures the balanced distribution of load and prevents uneven loading; on the other hand, this "straddling" hooking combined with the inclined rail constitutes a reliable anti-derailment structure. Even if vibration or lateral force is encountered, the pulley blocks 32 can be firmly constrained to the rail, resulting in high safety.

[0032] Furthermore, as a preferred embodiment of this solution and not a limitation, the pulley block 32 includes a rotating pin 321 disposed on the movable seat 31, and a wheel 322 disposed on the rotating pin 321. The wheel 322 includes a straight main body 323 and a tapered portion 324 that gradually narrows from the main body 323 towards the end of the rotating pin 321. The angle α between the tapered portion 324 and the horizontal plane is equal to the inclination angle b of the top surface of the transverse rail portion 232. The angle of the tapered portion 324 of the wheel 322 precisely matches the inclination angle b of the rail, achieving surface contact (or optimized line contact). This brings multiple advantages: maximizing the contact area, reducing contact stress, and improving the durability of the wheel and rail; perfectly conforming to the inclined surface of the rail, eliminating gaps, and ensuring extremely smooth and wobbly movement; providing more precise guidance and preventing deviation; effectively distributing the load and improving the load-bearing capacity.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the movable seat 31 is U-shaped, including a central frame 311 and side frames 312 respectively disposed on both sides of the central frame 311, each of the side frames 312 being provided with a transverse hanging hole 313. The U-shaped structure has good rigidity and can effectively bear the force from the pulley block 32. The transverse hanging holes 313 on the side frames 312 provide flexible and reliable lifting points, facilitating the use of standard lifting tools such as hooks and shackles to connect slings laterally from both sides, meeting different lifting requirements, and the connection point has high strength.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, multiple intermediate frames 311 are spaced apart, each intermediate frame 311 having a longitudinal hanging hole 314. The design of multiple intermediate frames 311 enhances the overall rigidity and load-bearing capacity of the movable base 31. The longitudinal hanging holes 314 on the intermediate frames 311 provide additional longitudinal connection points located below the lifting points. Combined with the transverse hanging holes 313, a flexible lifting method with multiple directions and multiple lifting points is achieved, which is particularly suitable for lifting heavy objects with complex shapes or requiring multi-point balance, improving versatility and adaptability.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the rotating shaft 22 is provided with a shoulder 221, which is fixedly connected to the bushing 21 so that the rotating shaft 22 and the support arm 23 rotate synchronously. The fixed connection between the shoulder 221 and the bushing 21 ensures that there is no relative rotation between the rotating shaft 22 and the bushing 21. This allows the rotating shaft 22 and the support arm 23 to rotate completely synchronously, eliminating gaps and looseness at critical rotating connections, improving the overall rigidity, accuracy, and reliability of the rotating mechanism, and ensuring the stability of the boom direction during hoisting.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, a baffle 4 is provided at the end of the support arm 23 to block the hanger 3. As a physical limiting device, the baffle 4 can effectively prevent the hanger 3 (especially its pulley block 32) from slipping off the end of the support arm 23, and is the last safety barrier to prevent the hanger from accidentally detaching, thus enhancing operational safety.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, a deceleration mechanism 5 is provided between the baffle 4 and the bushing 21. The deceleration mechanism 5 provides resistance to prevent the support arm 23 from rotating relative to the bushing 21 when the hanger 3 abuts against the baffle 4. The deceleration mechanism 5 intervenes when the hanger 3 is about to impact the baffle 4, and its core function is to absorb impact energy. When the hanger 3 contacts the baffle 4, this mechanism provides resistance to slow down the rotational speed of the support arm 23 around the rotation axis 22 (i.e., to buffer the swing of the boom), protecting the equipment from damage while improving operational stability and safety.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the deceleration mechanism 5 includes a deceleration ring 51 sleeved on the bushing 21, a connecting rod 52 connected to the deceleration ring 51, and a spring 53 disposed between the support arm 23 and the baffle 4. The spring 53 is used to drive the baffle 4 to move closer to the support arm 23. The preload of the spring 53 keeps the baffle 4 in its working position. When the hanger 3 impacts the baffle 4 and pushes it to move, the connecting rod 52 pulls the deceleration ring 51 to press against the bushing 21, using frictional damping to dissipate kinetic energy (frictional deceleration). At the same time, the spring 53 is compressed and also absorbs some energy (elastic buffering). This dual action of friction and elasticity achieves efficient and smooth deceleration and buffering effects.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the support arm 23 is provided with a groove 54, and a positioning pin 55 passing through the groove 54 is provided between the baffle 4 and the support arm 23. The cooperation of the groove 54 and the positioning pin 55 allows the baffle 4 to move linearly along the groove 54 to a limited extent when subjected to force (this is the key to triggering the deceleration mechanism 5), while the positioning pin 55 precisely limits the range of movement of the baffle 4 to prevent excessive movement or disengagement, ensuring that the deceleration mechanism 5 can be reliably triggered and reset after operation. The structure is simple and reliable.

[0040] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A fan hoisting device, characterized in that: include Base (1); The rotating mechanism (2) includes a bushing (21) disposed on the base (1), a rotating shaft (22) disposed on the bushing (21), a support arm (23), and a support rod (24); one end of the support arm (23) is sleeved on the rotating shaft (22), and both ends of the support rod (24) are hinged to the other ends of the rotating shaft (22) and the support arm (23), respectively. The hanger (3) includes a movable seat (31) and a pulley block (32) disposed on the movable seat (31) and for sliding on the support arm (23); The support arm (23) is in the shape of an I-beam, and includes a middle part (231) and a horizontal rail part (232) located at the lower end of the middle part (231). The top surface of the horizontal rail part (232) gradually slopes downward from the middle part (231) to both sides. The two pulley blocks (32) are respectively attached to the top surfaces of the horizontal rail (232).

2. The wind turbine hoisting device according to claim 1, characterized in that: The pulley assembly (32) includes a rotating pin (321) on the movable seat (31) and a wheel (322) on the rotating pin (321). The wheel (322) includes a straight main body (323) and a tapered part (324) that gradually narrows from the main body (323) to the end of the rotating pin (321). The angle α between the tapered part (324) and the horizontal plane is equal to the inclination angle b of the top surface of the horizontal rail (232).

3. The wind turbine hoisting device according to claim 1, characterized in that: The movable seat (31) is U-shaped and includes a middle frame (311) and side frames (312) respectively provided on both sides of the middle frame (311). Both side frames (312) are provided with horizontal hanging holes (313).

4. The wind turbine hoisting device according to claim 3, characterized in that: Multiple intermediate frames (311) are spaced apart, and each intermediate frame (311) is provided with a longitudinal hanging hole (314).

5. The wind turbine hoisting device according to claim 1, characterized in that: The rotating shaft (22) is provided with a shoulder (221), which is fixedly connected to the bushing (21) so that the rotating shaft (22) and the support arm (23) rotate synchronously.

6. The wind turbine hoisting device according to claim 1, characterized in that: The support arm (23) is provided with a baffle (4) at its end for blocking the hanger (3).

7. The wind turbine hoisting device according to claim 6, characterized in that: A deceleration mechanism (5) is provided between the baffle (4) and the bushing (21). The deceleration mechanism (5) is used to provide resistance to prevent the support arm (23) from rotating relative to the bushing (21) when the hanger (3) and the baffle (4) abut against each other.

8. The wind turbine hoisting device according to claim 7, characterized in that: The deceleration mechanism (5) includes a deceleration ring (51) sleeved on the bushing (21), a connecting rod (52) connected to the deceleration ring (51), and a spring (53) disposed between the support arm (23) and the baffle (4). The spring (53) is used to drive the baffle (4) to move closer to the support arm (23).

9. The wind turbine hoisting device according to claim 6, characterized in that: The support arm (23) is provided with a sliding groove (54), and a positioning pin (55) passing through the sliding groove (54) is provided between the baffle (4) and the support arm (23).

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