Large fan main shaft transfer frame

By designing a large fan main shaft transfer frame, a screw and motor drive method is used to lift and position the fan blades, which solves the problems of fan blade collision and inaccurate positioning caused by hoisting methods, improves transfer efficiency and stability, and is suitable for fan blades of different sizes and shapes.

CN223804145UActive Publication Date: 2026-01-16JIANGSU LIANWEI BLOWER CO LTD
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Patent Information

Application Number
CN202520106144.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-16
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

In the current process of transporting the main shaft and blades of a wind turbine, the hoisting method is prone to causing collisions between the blades and the main shaft, resulting in low connection efficiency and inaccurate positioning, which affects the transport efficiency.

Method used

A large fan main shaft transfer frame was designed, including a base, bracket, main shaft, fan blade, bidirectional screw, screw sleeve, crank, bearing plate, support structure, extrusion plate and drive motor. The fan blade is lifted and positioned by the screw and motor drive, and the positioning frame and pressure roller are used to ensure stability. It is suitable for fan blades of different sizes and shapes.

Benefits of technology

It enables rapid and accurate alignment of the fan blades and the main shaft, improves transfer efficiency, enhances the stability of the fan blades and the versatility of the equipment, reduces operating difficulty and labor costs, and meets the energy-saving and environmental protection requirements of modern industry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a large fan main shaft transfer frame, and belongs to the field of fan main shaft transfer. A large fan main shaft transfer frame comprises a base, supports fixedly connected to the two sides of the base, a main shaft rod connected to the inner sides of the supports in an inserted mode and fan blades arranged on the inner sides of the supports and capable of being penetrated by the main shaft rod, a two-way screw is movably connected to the interior of the base through a bearing, and threaded sleeves are in threaded connection to the two sides of the surface of the two-way screw. Cranks are movably connected to the two sides of the surface of the threaded sleeve through pin shafts, bearing plates are movably connected to the sides, away from the threaded sleeve, of the cranks through pin shafts, and the bearing plates are located at the bottoms of the fan blades and can lift the fan blades; the fan blade lifting device can lift fan blades to be aligned with the axis of the main shaft rod, the fan blades are quickly and accurately lifted to the position aligned with the axis of the main shaft rod, meanwhile, the stability of the fan blades in the lifting process is ensured, the overall structural design is reasonable, all parts are tightly connected, the occupied space is small, and the structure is simple. And flexible operation in a factory or a construction site is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fan main shaft transfer technical field especially relates to large -scale fan main shaft transfer frame. BACKGROUND

[0002] The transfer of fan main shaft usually involves multiple links, including preparation, safety fixing, transportation route planning and actual transportation process, etc., in the transfer process, the fan main shaft needs to be lifted and placed on the transport tool using appropriate hoisting equipment. The selection of hoisting equipment should be based on the weight and size of the main shaft, and ensure that it can withstand sufficient load, and the fan blade needs to be installed on the surface of the main shaft.

[0003] But the transfer mode of the existing fan blade is single, the direct hoisting mode is easy to swing in the main shaft insertion process, which causes the collision between the main shaft and the fan blade, and in order to avoid the eccentricity, the height of hoisting needs to be positioned accurately, which affects the connection efficiency of the fan blade and the main shaft. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of hoisting mode affecting the transfer efficiency of main shaft and fan blade in the prior art, and proposes a large -scale fan main shaft transfer frame.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] The large -scale fan main shaft transfer frame comprises a base;

[0007] The bracket is fixedly connected on both sides of the base;

[0008] The main shaft rod is inserted in the inner side of the bracket;

[0009] The fan blade is arranged on the inner side of the bracket and can be penetrated by the main shaft rod;

[0010] The inside of the base is movably connected with a bidirectional screw through a bearing, the two sides of the surface of the bidirectional screw are screw connected with a sleeve, the two sides of the surface of the sleeve are movably connected with a crank through a pin shaft, the side, away from the sleeve, of the crank is movably connected with a bearing plate through a pin shaft, the bearing plate is located at the bottom of the fan blade and can lift the fan blade, a supporting structure is arranged on the top of the bearing plate, and the supporting structure can position the fan blade.

[0011] As a preferred technical scheme of the application, the supporting structure comprises a connecting block fixedly connected on both sides of the top of the bearing plate, a positioning frame is movably connected with the surface of the connecting block through a pin shaft, and the side, away from the connecting block, of the positioning frame is sleeved on the surface of the fan blade and is slidably connected with the fan blade.

[0012] As a preferred technical scheme of the present application, the two sides of the top of the base are movably connected with extrusion plates through pin shafts, the side away from the base of the extrusion plate extends to the outside of the positioning frame, the side away from the base of the extrusion plate is movably connected with a compression roller through a pin shaft, and the outer surface of the compression roller is in contact with the surface of the positioning frame.

[0013] As a preferred technical scheme of the present application, the inner side of the extrusion plate is fixedly connected with a sleeve plate, the two sides of the screw sleeve are fixedly connected with extension rods, the side away from the screw sleeve of the extension rod extends to the inner side of the sleeve plate, the side away from the extension rod of the push rod extends to the inside of the sleeve plate and is slidably connected with the sleeve plate.

[0014] As a preferred technical scheme of the present application, the inside of the base is fixedly connected with a guide rod, and the screw sleeve is sleeved on the surface of the guide rod and is slidably connected with the guide rod.

[0015] As a preferred technical scheme of the present application, the side of the base is fixedly connected with a transmission motor, and the output end of the transmission motor penetrates through the base and is fixedly connected with one end of the bidirectional screw rod.

[0016] Compared with the prior art, the large fan main shaft transfer frame has the following beneficial effects:

[0017] 1. The large fan main shaft transfer frame can lift the fan blade to be aligned with the main shaft rod axis, quickly and accurately lift the fan blade to the position aligned with the main shaft rod axis, and ensure the stability of the fan blade during lifting, and the overall structure design is reasonable, the components are connected closely, the occupied space is small, and flexible operation is facilitated in the factory or construction site.

[0018] 2. The large fan main shaft transfer frame can accurately position the fan blade during lifting through the design of the positioning frame, prevent the fan blade from shifting or shaking, ensure the accurate butt joint of the fan blade and the main shaft rod, and the sliding connection design between the positioning frame and the fan blade makes the transfer frame applicable to fan blades of different sizes and shapes, improving the versatility and flexibility.

[0019] 3. The large fan main shaft transfer frame increases the stability of the fan blade during lifting through the contact of the compression roller and the positioning frame, prevents the fan blade from shaking or falling off due to external force, and the design of the compression roller not only enhances the stability, but also protects the surface of the fan blade from being scratched or worn to a certain extent.

[0020] 4、The large fan main shaft transfer frame realizes linkage control between the screw sleeve and the extrusion plate through the design of the extension rod and the push rod, when the screw sleeve moves, the extrusion plate and the compression roller can be driven to move together, thereby realizing stable lifting and positioning of the fan blade, the linkage design simplifies the operation process, reduces the operation difficulty and labor intensity, and improves the work efficiency.

[0021] 5、The large fan main shaft transfer frame provides a stable sliding track for the screw sleeve through the guide rod, ensures the accuracy and stability of the screw sleeve during movement, and reduces the friction and wear between components through the sliding connection design between the guide rod and the screw sleeve, thereby prolonging the service life of the equipment.

[0022] 6、The large fan main shaft transfer frame realizes automatic control of the bidirectional screw rod through the driving of the transmission motor, which not only improves the work efficiency, but also reduces the operation difficulty and labor cost, and the use of the transmission motor meets the energy saving and environmental protection requirements of modern industry, which helps to reduce energy consumption and environmental pollution. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the utility model;

[0024] Figure 2 is a sectional structure schematic view of the utility model;

[0025] Figure 3 is a front view structural schematic view of the utility model;

[0026] Figure 4 is a Figure 2 enlarged structure schematic view of A in the middle.

[0027] In the figure: 1, base; 2, support; 3, main shaft rod; 4, fan blade; 5, bidirectional screw rod; 6, screw sleeve; 7, crank; 8, bearing plate; 9, support structure; 10, connecting block; 11, positioning frame; 12, extrusion plate; 13, compression roller; 14, sleeve plate; 15, extension rod; 16, push rod; 17, guide rod; 18, transmission motor. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0029] Refer to Figures 1-4Large fan main shaft transfer frame, including base 1;

[0030] Fixedly connected with the bracket 2 on both sides of the base 1;

[0031] Plug in the inside of the bracket 2 main shaft 3;

[0032] The inside of the bracket 2 and can be penetrated by the main shaft 3 fan 4;

[0033] The inside of the base 1 is movably connected with the two-way screw 5, the surface of the two-way screw 5 is screw connected with the nut 6, the surface of the nut 6 is movably connected with the crank 7 through the pin shaft, the side of the crank 7 away from the nut 6 is movably connected with the bearing plate 8 through the pin shaft, the bearing plate 8 is located at the bottom of the fan 4 and can lift the fan 4, the top of the bearing plate 8 is provided with the support structure 9, the support structure 9 can position the fan 4, can lift the fan 4 to make it with the main shaft 3 axis alignment, quickly and accurately lift the fan 4 to the position of the main shaft 3 axis alignment, at the same time ensure the stability of the fan 4 in the lifting process, the overall structure design is reasonable, the connection between the parts is close, the occupied space is small, the flexible operation is convenient in the factory or construction site, the support structure 9 includes the connecting block 10 fixedly connected with the top of the bearing plate 8 on both sides, the surface of the connecting block 10 is movably connected with the positioning frame 11 through the pin shaft, the side of the positioning frame 11 away from the connecting block 10 is sleeved on the surface of the fan 4 and is in sliding connection with the fan 4, the both sides of the top of the base 1 are movably connected with the extrusion plate 12 through the pin shaft, the side of the extrusion plate 12 away from the base 1 extends to the outside of the positioning frame 11, the side of the extrusion plate 12 away from the base 1 is movably connected with the pressure roller 13 through the pin shaft, the outer surface of the pressure roller 13 is in contact with the surface of the positioning frame 11, the inside of the extrusion plate 12 is fixedly connected with the sleeve plate 14, the both sides of the nut 6 are fixedly connected with the extension rod 15, the side of the extension rod 15 away from the nut 6 extends to the inside of the sleeve plate 14, the side of the extension rod 15 away from the nut 6 is fixedly connected with the push rod 16, the side of the push rod 16 away from the extension rod 15 extends to the inside of the sleeve plate 14 and is in sliding connection with the sleeve plate 14, the inside of the base 1 is fixedly connected with the guide rod 17, the nut 6 is sleeved on the surface of the guide rod 17 and is in sliding connection with the guide rod 17, one side of the base 1 is fixedly connected with the transmission motor 18, the output end of the transmission motor 18 penetrates the base 1 and is fixedly connected with one end of the two-way screw 5.

[0034] Specifically, the large fan main shaft transfer frame in working / using: the large fan main shaft transfer frame is in the initial state, the base 1 is stably placed on the ground, the support 2 is fixedly connected on both sides of the base 1, the main shaft rod 3 is inserted into the inner side of the support 2, and the fan blade 4 is hoisted in the inner side of the support 2 and can be penetrated by the main shaft rod 3, the operator starts the transmission motor 18, the output end of the transmission motor 18 starts to rotate and drives the bidirectional screw rod 5 fixedly connected with it to rotate, the threads on the surface of the bidirectional screw rod 5 cooperate with the threads in the screw sleeve 6, so that the screw sleeve 6 starts to move under the rotating action of the bidirectional screw rod 5, with the movement of the screw sleeve 6, the crank 7 connected with the surface of the pin shaft also starts to swing, the other end of the crank 7 is connected with the bearing plate 8 through the pin shaft, so that the swing of the crank 7 drives the bearing plate 8 to rise, the bearing plate 8 gradually rises under the transmission action of the crank 7, until the support structure 9 at the top of the bearing plate 8 contacts the bottom of the fan blade 4, at this time, the bearing plate 8 not only supports the weight of the fan blade 4, but also provides a basis for subsequent positioning of the fan blade 4, after the fan blade 4 is lifted and positioned, the sleeve plate 14 in the inner side of the extrusion plate 12 is connected with the extension rod 15 on both sides of the screw sleeve 6, with the movement of the screw sleeve 6, the extension rod 15 also drives the push rod 16 to slide in the sleeve plate 14, the extrusion plate 12 on the top of the base 1 is in contact with the surface of the positioning frame 11 through the pin shaft movable connection of the press roller 13, the existence of the press roller 13 further enhances the stability of the fan blade 4, preventing it from shaking due to vibration or external force during the transfer process, after the above steps, the fan blade 4 has been successfully lifted and aligned with the axis of the main shaft rod 3, and is firmly positioned by the support structure 9 and the positioning frame 11, at this time, the main shaft rod 3 is inserted, so that the main shaft rod 3 penetrates the fan blade 4, thereby preparing for subsequent transfer work.

[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. Large fan main shaft transfer frame, including base (1); The support (2) is fixedly connected on both sides of the base (1); The main shaft rod (3) is inserted into the inner side of the support (2); The fan blade (4) is arranged on the inner side of the support (2) and can be penetrated by the main shaft rod (3); characterized in that The inside of the base (1) is movably connected with a bidirectional screw (5) through a bearing, the two sides of the surface of the bidirectional screw (5) are threadedly connected with a sleeve (6), the two sides of the surface of the sleeve (6) are movably connected with a crank (7) through a pin shaft, the side away from the sleeve (6) of the crank (7) is movably connected with a bearing plate (8) through a pin shaft, the bearing plate (8) is located at the bottom of the fan blade (4) and can lift the fan blade (4), and the top of the bearing plate (8) is provided with a supporting structure (9), which can position the fan blade (4).

2. The large fan main shaft transfer frame according to claim 1, characterized in that, The supporting structure (9) includes a connecting block (10) fixedly connected on both sides of the top of the bearing plate (8), and the surface of the connecting block (10) is movably connected with a positioning frame (11) through a pin shaft, the side away from the connecting block (10) of the positioning frame (11) is sleeved on the surface of the fan blade (4) and is in sliding connection with the fan blade (4).

3. The large fan main shaft transfer frame according to claim 2, characterized in that, The two sides of the top of the base (1) are movably connected with an extrusion plate (12) through a pin shaft, the side away from the base (1) of the extrusion plate (12) extends to the outside of the positioning frame (11), the side away from the base (1) of the extrusion plate (12) is movably connected with a pressure roller (13) through a pin shaft, and the outer surface of the pressure roller (13) is in contact with the surface of the positioning frame (11).

4. The large fan main shaft transfer frame according to claim 3, characterized in that, The inside of the extrusion plate (12) is fixedly connected with a sleeve plate (14), the two sides of the sleeve (6) are fixedly connected with an extension rod (15), the side away from the sleeve (6) of the extension rod (15) extends to the inside of the sleeve plate (14), the side away from the sleeve (6) of the extension rod (15) is fixedly connected with a push rod (16), the side away from the extension rod (15) of the push rod (16) extends to the inside of the sleeve plate (14) and is in sliding connection with the sleeve plate (14).

5. The large fan main shaft transfer frame according to claim 1, wherein, The inside of the base (1) is fixedly connected with a guide rod (17), and the sleeve (6) is sleeved on the surface of the guide rod (17) and is in sliding connection with the guide rod (17).

6. The large fan main shaft transfer frame according to claim 1, wherein, One side of the base (1) is fixedly connected with a transmission motor (18), and the output end of the transmission motor (18) penetrates the base (1) and is fixedly connected with one end of the bidirectional screw (5).