A gantry for fan turnover
By designing a gantry frame for fan rotation, and employing the coordinated work of gantry columns, crossbeams, swing frames, and claw plate components, the problems of high operational difficulty and equipment slippage during fan rotation are solved. This achieves stable clamping and anti-scratching effects, improving the safety of the rotation process and fan protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DAYANG FAN CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
In the traditional process of rotating a wind turbine, the large weight of the turbine makes manual rotation difficult and labor-intensive. Furthermore, existing equipment is prone to sliding and tilting during hoisting, leading to positioning errors during maintenance.
A gantry frame for fan rotation was designed, including gantry support columns, gantry beams, swing frame components and claw plate components. Through the coordinated work of hydraulic cylinders, transmission plates, connecting beams and claw arms, combined with the structural design of long and short reinforcing plates, mechanical locking and stable clamping are achieved. A buffer layer is provided to prevent scratches and a workpiece protection surface is provided to avoid damage.
It effectively reduces the risk of falling during the fan's rotation process, limits shaking, disperses stress, improves operational stability and safety, and protects the fan surface from damage.
Smart Images

Figure CN224337068U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fan processing and testing technology, and relates to a gantry frame for fan rotation. Background Technology
[0002] In the traditional process, the fan is face up during the assembly stage, but it needs to be turned face down when entering the inspection stage. The original manual flipping operation mode has problems such as high operation difficulty and high labor intensity due to the large weight of the fan itself, which seriously restricts the improvement of production efficiency and optimization of labor costs.
[0003] Chinese patent publication number CN220223286U discloses a wind turbine maintenance auxiliary device, including an I-shaped gantry frame and support frames A and B, which are vertically fixed to the bottom of the left and right ends of the I-shaped gantry frame by welding. Drive seats are sleeved on the front and rear ends and the bottom of the I-shaped gantry frame. The drive seats can move left and right outside the I-shaped gantry frame. A winch is fixed at the bottom of the drive seat. A hoisting cable is wound on the winding shaft of the winch. A self-locking protective device is fixed at the bottom of the winch. The self-locking protective device includes a perforation, a locking baffle and a fixing frame. The perforation is set inside the center of the locking baffle. The locking baffle is sleeved on the outside of the hanging hoisting cable through the perforation. At the same time, both ends of the locking baffle are fixedly connected to the winch through the fixing frame.
[0004] The patent provides a wind turbine maintenance auxiliary device in which the wind turbine workpiece is grabbed and lifted by a hoisting device. The hoisting cable forms line contact or point contact by winding. The wind turbine is fixed by friction alone. When the center of gravity of the wind turbine shifts or is subjected to external vibration, it is easy to slip, tilt or even overturn, resulting in maintenance positioning deviation. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a gantry frame for fan rotation.
[0006] The objective of this utility model can be achieved through the following technical solution: A gantry frame for fan rotation, comprising gantry pillars, a gantry beam, a swing frame assembly, and a claw plate assembly. The gantry pillars are two in number and arranged longitudinally. A stabilizing support plate is fixedly connected to the bottom of each gantry pillar. A first mounting plate is provided at the top of each gantry pillar. Second mounting plates are provided at the bottom of both ends of the gantry beam. The first and second mounting plates are identical in shape. The gantry beam is fixedly installed at the top of the gantry pillar, with the first and second mounting plates fitting together and fixed in place. The swing frame assembly is fixedly installed on the middle side of the gantry beam. The swing frame assembly includes a connecting base, a connecting plate, and a limiting baffle. The connecting base is fixedly connected to the gantry beam, and a connecting rod is integrally formed on one side of the connecting base. The connecting plate is fixedly connected to the connecting rod. The limiting baffle is fixedly installed on both sides of the upper end of the connecting plate. The claw plate assembly includes a hydraulic cylinder, a transmission plate, a connecting beam, and a claw arm. The hydraulic cylinder is fixedly installed on the upper end of the connecting plate, and the transmission plate is installed on the lower end of the connecting plate. The connecting beam is fixedly connected to the lower end of the transmission plate, and the claw arm is connected to the lower end of the connecting beam.
[0007] In the aforementioned gantry frame for fan rotation, several long reinforcing plates are fixedly connected to the outer periphery of the gantry support column at the upper end of the stabilizing support plate, and several short reinforcing plates are fixedly connected to the outer periphery of the gantry support column at the lower end of the first mounting plate.
[0008] In the aforementioned gantry frame for fan reversing, a buffer layer is fixed between the transmission plate and the hydraulic cylinder.
[0009] In the aforementioned gantry frame for fan rotation, the buffer plate, transmission plate, and connecting beam are respectively provided with a first transmission hole, a second transmission hole, and a third transmission hole.
[0010] In the aforementioned gantry frame for fan rotation, the lower end face of the connecting beam is provided with a workpiece protection surface.
[0011] Compared with the prior art, the gantry frame for fan tilting provided by this utility model has the following beneficial effects: 1. The hydraulic cylinder, transmission plate, connecting beam and claw arm of the claw plate assembly work together to firmly clamp the fan. When the claw arm closes, a mechanical lock is formed, which greatly reduces the risk of the fan falling during the tilting process. Moreover, the claw plate firmly grips the fan, which can effectively limit the shaking of the fan during the tilting process; 2. Equipped with long reinforcing plates, short reinforcing plates, and gantry pillars and gantry beams that are firmly connected by the first mounting plate and the second mounting plate, the overall structure can better distribute stress when bearing the weight of the fan; 3. The workpiece protection surface set at the lower end of the connecting beam can effectively avoid scratching, squeezing and other damage to the fan surface when clamping the fan. Attached Figure Description
[0012] Figure 1This is a schematic diagram of the front structure of this utility model;
[0013] Figure 2 This is a side view of the structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the claw disk assembly structure.
[0015] In the diagram: 1. Gantry support column; 11. Stabilizing support plate; 12. First mounting plate; 13. Long reinforcing plate; 14. Short reinforcing plate; 2. Gantry crossbeam; 21. Second mounting plate; 3. Swing frame assembly; 31. Connecting base; 311. Connecting rod; 32. Connecting plate; 33. Limiting baffle; 4. Claw plate assembly; 41. Hydraulic cylinder; 42. Transmission plate; 421. Second transmission hole; 43. Connecting beam; 431. Third transmission hole; 432. Workpiece protection surface; 44. Claw arm; 45. Buffer plate; 451. First transmission hole. Detailed Implementation
[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0017] like Figures 1 to 3 As shown, this embodiment consists of two gantry pillars 1, a gantry beam 2, a swing frame assembly 3, and a claw plate assembly 4. The gantry pillars 1 are arranged vertically, with a stable support plate 11 welded to their bottom to increase the contact area with the ground, effectively dispersing the equipment load and improving the overall stability of this embodiment. A first mounting plate 12 is welded to the top of the gantry pillar 1, and second mounting plates 21 are correspondingly installed at the bottom of both ends of the gantry beam 2. The first mounting plate 12 and the second mounting plate 21 are perfectly matched in shape and size. During installation, the gantry beam 2 is placed on top of the two gantry pillars 1, ensuring the first mounting plate 12 and the second mounting plate 21 are precisely aligned and fitted. They are then fixed together by bolts, constructing the basic support frame of this embodiment and providing a stable carrier for subsequent component installation.
[0018] like Figures 1 to 3As shown, the swing frame assembly 3 is fixed to the middle side of the gantry beam 2 by bolts, serving to connect the gantry beam 2 and the claw plate assembly 4 and to transmit and bear the load. The swing frame assembly 3 includes a connecting base 31, a connecting plate 32 and a limiting baffle 33. A connecting rod 311 is integrally formed on one side of the connecting base 31, serving as a transition structure between the connecting base and the connecting plate 32 to ensure effective force transmission. The connecting plate 32 is firmly connected to the end of the connecting rod 311 by bolts, providing a horizontal mounting surface for the claw plate assembly 4. There are two limiting baffles 33, which are triangular in shape. The limiting baffles 33 are symmetrically fixed on both sides of the upper end of the connecting plate 32, limiting the hydraulic cylinder and other components of the claw plate assembly 4 to prevent horizontal displacement during operation.
[0019] like Figures 1 to 3 As shown, the claw assembly 4 includes a hydraulic cylinder 41, a transmission plate 42, a connecting beam 43, and a claw arm 44. The hydraulic cylinder 41 is fixedly installed on the upper end of the connecting plate 32 by bolts. The transmission plate 42 is installed on the lower end of the connecting plate 32. The connecting beam 43 is welded or bolted to the lower end of the transmission plate 42. The claw arm 44 is connected to the lower end of the connecting beam 43 by a pin, thereby realizing the gripping and flipping action of the workpiece.
[0020] To elaborate further, such as Figure 1 and Figure 2 As shown, several long reinforcing plates 13 are welded and fixed to the outer periphery of the gantry column 1 at the upper end of the stabilizing support plate 11, and several short reinforcing plates 14 are welded and fixed to the outer periphery of the gantry column 1 at the lower end of the first mounting plate 12, thereby enhancing the structural strength and stability of the gantry column 1 and preventing deformation under stress.
[0021] To elaborate further, such as Figure 2 and Figure 3 As shown, a buffer plate 45 is fixed between the transmission plate 42 and the hydraulic cylinder 41. It can be made of elastic materials such as rubber and polyurethane to buffer and dampen shocks and reduce the impact during operation. The buffer plate 45, the transmission plate 42 and the connecting beam 43 are respectively provided with a first transmission hole 451, a second transmission hole 421 and a third transmission hole 431 for the transmission components to pass through, so as to ensure the smoothness of power transmission.
[0022] To elaborate further, such as Figure 3 As shown, the lower end face of the connecting beam 43 is provided with a workpiece protection surface 432. The workpiece protection surface 432 is made of flexible material to protect the workpiece surface from damage when gripping the workpiece.
[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0024] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A gantry frame for fan reversing, comprising gantry supports (1), gantry beams (2), swing frame assembly (3), and claw plate assembly (4), wherein the number of gantry supports (1) is two and the gantry supports (1) are arranged longitudinally, characterized in that: The bottom of the gantry pillar (1) is fixedly connected to a stable support plate (11). The top of the gantry pillar (1) is provided with a first mounting plate (12). The bottom of both ends of the gantry beam (2) are provided with second mounting plates (21). The first mounting plate (12) and the second mounting plate (21) are exactly the same shape. The gantry beam (2) is fixedly installed on the top of the gantry pillar (1) and the first mounting plate (12) and the second mounting plate are fitted together and fixed. The swing frame assembly (3) is fixedly installed on the middle side of the gantry beam (2). The swing frame assembly (3) includes a connecting base (31), a connecting plate (32), and a limiting baffle (33). The connecting base (31) 31) A connecting rod (311) is integrally formed on one side of the connecting base (31) and fixedly connected to the gantry beam (2). The connecting plate (32) is fixedly connected to the connecting rod (311). The limiting baffle (33) is fixedly installed on both sides of the upper end of the connecting plate (32). The claw plate assembly (4) includes a hydraulic cylinder (41), a transmission plate (42), a connecting beam (43), and a claw arm (44). The hydraulic cylinder (41) is fixedly installed on the upper end of the connecting plate (32), and the transmission plate (42) is installed on the lower end of the connecting plate (32). The connecting beam (43) is fixedly connected to the lower end of the transmission plate (42), and the claw arm (44) is connected to the lower end of the connecting beam (43).
2. The gantry crane for fan rotation according to claim 1, characterized in that: Several long reinforcing plates (13) are fixedly connected to the outer periphery of the gantry column (1) at the upper end of the stable support plate (11), and several short reinforcing plates (14) are fixedly connected to the outer periphery of the gantry column (1) at the lower end of the first mounting plate (12).
3. A gantry frame for fan rotation according to claim 1, characterized in that: A buffer plate (45) is fixed between the transmission plate (42) and the hydraulic cylinder (41).
4. A gantry frame for fan rotation according to claim 3, characterized in that: The buffer plate (45), transmission plate (42) and connecting beam (43) are respectively provided with a first transmission hole (451), a second transmission hole (421) and a third transmission hole (431).
5. A gantry crane for fan rotation according to claim 1, characterized in that: The lower end face of the connecting beam (43) is provided with a workpiece protection surface (432).