Lifting device for disassembling bearing of wind driven generator

Abstract

The utility model provides a lifting device for disassembling a bearing of a wind driven generator, which is used for disassembling the bearing and comprises a plurality of spandrel girders, the connecting frames are detachably connected with the bearing beams, the connecting frames are provided with connecting plates, and the connecting plates are connected with the bearings; and the jacks are connected with the bearing beam. According to the scheme, multi-directional synchronous supporting can be achieved, eccentricity of parts can be effectively prevented during lifting operation, and the bearing can be changed according to the size of the bearing, so that the universality is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing disassembly, and in particular to a wind turbine bearing disassembly and lifting device. Background Art

[0002] As a form of clean energy generation, wind turbines have been widely used around the world. Wind turbines have a huge inventory and repair market. According to previous repair and disassembly experiences, the failure rate of bearing damage is relatively high. Currently, the main repair solution in China is to replace bearings. This solution can greatly save repair costs, reduce the time required for repair operations, and improve production efficiency. However, due to the interference fit of the shaft system, the bearings are difficult to disassemble. Relying entirely on manual disassembly is difficult, has high safety risks, and is inefficient. Therefore, it is very necessary to provide a wind turbine bearing disassembly and lifting device.

[0003] However, one of the shortcomings of the related prior art is that there are too few support positions when lifting the bearing, which causes the components to be eccentric during the lifting process. Utility Model Content

[0004] The utility model aims to solve at least one of the above technical problems.

[0005] In order to solve the above problems, the first purpose of the present invention is to provide a wind turbine bearing disassembly and lifting device.

[0006] In order to achieve the first purpose of the utility model, an embodiment of the utility model provides a wind turbine bearing disassembly and lifting device for disassembling bearings, which includes: several load-bearing beams; at least two connecting frames, which are detachably connected to the load-bearing beams, and the connecting frames are provided with connecting plates, which are connected to the bearings; at least two jacks, which are connected to the load-bearing beams.

[0007] By using multiple load-bearing beams and multiple jacks, the weight of the bearing can be evenly distributed, making the disassembly process smoother and more efficient. Furthermore, the connecting plate on the connecting frame is connected to the bearing, and then to the load-bearing beam through the connecting frame. Multiple load-bearing beams work in conjunction with multiple connecting frames to provide good stability, preventing unnecessary shaking or displacement during the disassembly process and avoiding eccentricity of components during the lifting process. The jack provides the source power, and the connecting plate is connected to the bearing. The load-bearing beam provides support for the connecting frame. This design enables a variety of operating modes, including vertical and horizontal. Providing the source power through the jack ensures that the force applied to the bearing during the disassembly process is controllable, thereby reducing the risk of equipment damage or personal injury due to improper operation.

[0008] In the above technical solution, the connecting frame includes: a crossbeam, and the crossbeam is detachably connected to the load-bearing beam.

[0009] The removable connection between the crossbeam and the load-bearing beam makes the entire system modular, facilitating disassembly, assembly, and transportation, and enhancing operational flexibility. The crossbeam design distributes the load between the load-bearing beam and the bearings, increasing overall load-bearing capacity, reducing stress concentration in the structure, and enhancing stability. The removable crossbeam facilitates routine inspection and maintenance, allowing users to quickly remove sections for inspection, improving maintenance efficiency.

[0010] In any of the above technical solutions, the load-bearing beam is provided with a plurality of crossbeam limiting holes, and the crossbeam is detachably connected to one of the crossbeam limiting holes.

[0011] The design of the stop holes allows for precise positioning of the crossbeam on the load-bearing beam. This ensures that the crossbeam can be adjusted as needed, providing excellent support and stability. Multiple stop holes allow the crossbeam to be installed in different positions to accommodate different bearing sizes and types. This flexibility enables the device to handle a variety of dismantling tasks.

[0012] In any of the above technical solutions, the crossbeam is provided with a crossbeam fixing hole, and the crossbeam fixing hole and the crossbeam limiting hole are detachably connected.

[0013] The removable connection between the beam fixing holes and the beam stop holes allows for precise adjustment of the beam's position. It can be fixed in different positions as needed, ensuring the beam maintains the desired stability during disassembly and support. The removable connection between the fixing and stop holes ensures a more secure attachment of the beam to the load-bearing beam during operation, reducing structural sway or movement and improving overall stability. The combination of the beam fixing and stop holes allows for quick positioning, improving efficiency during assembly and disassembly.

[0014] In any of the above technical solutions, the connecting frame further includes: legs connected to the crossbeams; feet connected to the legs, and the feet connected to the connecting plates.

[0015] The design of the legs and feet provides additional support points, enhancing the overall stability of the connecting frame. The connection between the legs and the connecting plate further distributes the load, thereby improving structural stability. The combination of legs and feet allows the connecting frame to distribute and withstand a greater load. This distributed load-bearing design reduces single-point burdens, prevents localized overloads, and increases the load-bearing capacity of the device. Connecting the connecting plate to the feet ensures a stable connection between the connecting frame and the bearing, preventing the bearing from falling off during lifting.

[0016] In any of the above technical solutions, the connecting plate is provided with a screw rod, which is connected to the supporting legs.

[0017] The screw design allows for easy adjustment of the height between the connecting plate and the outriggers, adapting to various working environments and load requirements, thereby increasing the flexibility of the equipment. Through the screw connection, the jack raises the load-bearing beam, which in turn raises the crossbeam to connect the outriggers and feet. The screw then raises the connecting plate, thereby lifting the bearings.

[0018] In any of the above technical solutions, the supporting leg is provided with a connecting plate fixing hole, and the screw rod is connected to the connecting plate fixing hole.

[0019] The connection between the fixing hole and the screw rod can ensure a stable connection between the connecting plate and the support leg, improve the safety and durability of the overall structure, and prevent loosening or falling off during use. The direct connection between the fixing hole and the screw rod can make installation and disassembly easier. Operators only need simple tools to complete the task quickly, which improves work efficiency. The connection design between the screw rod and the fixing hole can effectively disperse stress, reduce the risk of failure caused by local uneven force, and improve the reliability of the equipment. The fixing hole can provide a larger contact area, thereby increasing the force-bearing capacity between the support leg and the connecting plate and enhancing the strength of the overall structure. In addition, the fixing hole enables operators to quickly locate the position so that the assembly of the screw rod can be completed quickly.

[0020] In any of the above technical solutions, if the number of load-bearing beams is greater than or equal to two, the multiple load-bearing beams are connected to each other, and a load-bearing plate is provided at the connection.

[0021] Interconnecting multiple load-bearing beams effectively distributes the load, increasing overall load-bearing capacity and reducing the stress on individual beams, thereby improving structural safety. Connecting multiple load-bearing beams allows for more even load distribution, reducing localized stress concentrations, thereby reducing material fatigue and increasing the structural lifespan. The use of load-bearing plates strengthens the cross-sectional connection between the beams, increasing the stability of the overall structure and preventing localized failure or deformation when subjected to external forces. This increased structural rigidity ensures greater stability in the event of vibration or impact, reducing the hazards associated with vibration.

[0022] In any of the above technical solutions, the jack is provided with a guide rod, which is connected to the load-bearing beam.

[0023] The pilot rod helps the jack maintain stability when applying pressure, preventing it from tilting or moving. This enhances overall load-bearing stability and ensures the safety of the equipment under load. The pilot rod ensures the correct positioning of the jack. Its connection to the load-bearing beam ensures that the jack is precisely aligned with the point of force application during operation, reducing uneven force distribution caused by positional deviation. By connecting the pilot rod to the load-bearing beam, the force applied by the jack is more effectively distributed, evenly distributed along the entire load-bearing beam, reducing the risk of excessive localized force.

[0024] In any of the above technical solutions, the load-bearing beam is provided with a guide hole, which cooperates with the guide rod.

[0025] The design of the guide holes ensures accurate insertion of the guide rod, helping to maintain the correct position of the jack or other equipment and allowing for more precise force application. The combination of the guide holes and guide rod effectively prevents lateral movement or tilting of the equipment when loads are applied, thereby improving overall structural stability and enhancing safety. The combination of the guide rod and guide holes increases the overall rigidity of the load-bearing beam, ensuring that the structure maintains its shape and performance under heavy loads. Using guide holes in conjunction with the guide rod significantly improves the ease of installation and removal of the equipment, reduces human error, and saves time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A three-dimensional diagram of a wind turbine bearing disassembly and lifting device provided by an embodiment of the utility model;

[0028] Figure 2 for Figure 1 Enlarged view of part A;

[0029] Figure 3 A cross-sectional view of a wind turbine bearing disassembly and lifting device provided in an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 110-load-bearing beam, 111-beam limiting hole, 112-guide hole, 120-load-bearing plate, 200-connecting frame, 210-connecting plate, 211-screw, 220-beam, 221-beam fixing hole, 230-support leg, 231-connecting plate fixing hole, 240-support foot, 300-jack, 310-guide rod. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention provides a wind turbine bearing disassembly and lifting device for disassembling bearings, which includes: several load-bearing beams 110; at least two connecting frames 200, the connecting frames 200 are detachably connected to the load-bearing beams 110, and the connecting frames 200 are provided with connecting plates 210, which are connected to the bearings; at least two jacks 300, and the jacks 300 are connected to the load-bearing beams 110; if the number of load-bearing beams 110 is greater than or equal to two, the multiple load-bearing beams 110 are connected to each other, and a load-bearing plate 120 is provided at the connection.

[0034] In this embodiment, a total of three load-bearing beams 110 are used. The angle between the three load-bearing beams 110 is 120 degrees. The three load-bearing beams 110 are connected together, and two circular load-bearing plates 120 are provided on the upper and lower sides of the connection of the three load-bearing beams 110. Three connecting frames 200 are respectively against the three load-bearing beams 110. The arrangement of the three load-bearing beams 110 and the three connecting frames 200 can ensure that during the lifting process, synchronous support is provided from multiple directions to prevent the components from being eccentric during the lifting process. Three jacks 300 are respectively provided at one end of the three load-bearing beams 110 away from the load-bearing plates 120. The three jacks 300 cooperate with the three load-bearing beams 110 to ensure that the lifting force of the lifting device is balanced during use, and avoid the eccentricity of the components during the lifting process caused by uneven lifting force. When disassembling the bearing, the jack 300 can be placed on the outer ring of the bearing, and then the connecting plate 210 can be welded to the inner ring of the bearing. Then, the jack 300 can be used as the source power to lift the load-bearing beam 110, and the connecting frame 200 moves with the load-bearing beam 110, thereby driving the connecting plate 210 to move. The connecting plate 210 and the inner ring of the bearing have been welded, so the inner ring of the bearing will move together with the connecting plate 210, thereby achieving the purpose of disassembling the bearing.

[0035] like Figure 2 、 Figure 3As shown, the connecting frame 200 includes: a crossbeam 220, which is detachably connected to the load-bearing beam 110; a support leg 230, which is connected to the crossbeam 220; a support foot 240, which is connected to the support leg 230, and the support foot 240 is connected to the connecting plate 210; the load-bearing beam 110 is provided with a plurality of crossbeam limiting holes 111, and the crossbeam 220 is detachably connected to one of the crossbeam limiting holes 111; the crossbeam 220 is provided with a crossbeam fixing hole 221, and the crossbeam fixing hole 221 is detachably connected to the crossbeam limiting hole 111; the connecting plate 210 is provided with a screw rod 211, which is connected to the support leg 230; the support foot 240 is provided with a connecting plate fixing hole 231, and the screw rod 211 is connected to the connecting plate fixing hole 231.

[0036] In this embodiment, the crossbeam 220 is a hollow square structure. The lower end of the crossbeam 220 abuts against the load-bearing beam 110. The lower end of the crossbeam 220 is provided with a crossbeam fixing hole 221, which cooperates with the crossbeam limiting hole 111 provided at the upper end of the load-bearing beam 110. The two can be detachably connected by bolts. The upper end of the load-bearing beam 110 is provided with multiple crossbeam limiting holes 111. The crossbeam 220 can cooperate with different crossbeam limiting holes 111. This arrangement allows the position of the connecting frame 200 to be adjusted to accommodate the size of the bearing. The support legs 230 are connected to the crossbeam 220 and sandwich the load-bearing beam 110 in the middle, thereby making the connecting frame 200 more stable during the lifting process. The bottom end of the support leg 230 is connected to the support foot 240 , and the connecting plate fixing hole 231 on the support foot 240 and the screw rod 211 on the connecting plate 210 are screwed together with the connecting plate fixing hole 231 . The height of the connecting plate 210 can be adjusted by adjusting the screw rod 211 .

[0037] like Figure 1 As shown, the jack 300 is provided with a guide rod 310 , which is connected to the load-bearing beam 110 ; the load-bearing beam 110 is provided with a guide hole 112 , which cooperates with the guide rod 310 .

[0038] In this embodiment, each jack 300 is equipped with a guide rod 310 at its upper end. A guide hole 112 is provided on the end of the load-bearing beam 110, away from the load-bearing plate 120. The guide rod 310 cooperates with the guide hole 112 to ensure that the force applied by the jack 300 does not shift during the lifting process. When using the lifting device, the position of the crossbeam 220 is adjusted according to actual needs, the height of the connecting plate 210 is adjusted using the screw rod 211, and the connecting plate 210 is welded to the inner race of the bearing. The jack 300 is placed on the outer ring of the bearing. The jack 300 applies force upward, and the guide rod 310 stabilizes the direction of the jack 300's force and prevents it from shifting. The jack 300 drives the load-bearing beam 110 upward, which in turn drives the crossbeam 220 upward. The legs 230 and feet 240 then move upward, driving the screw rod 211 and the connecting plate 210 upward. This in turn drives the inner ring of the bearing upward, ultimately pulling it out. Because the connecting plate 210 is welded to the bearing, during operation, the bearing exerts a reaction force on the connecting plate 210, which in turn exerts a reaction force on the connecting frame 200. This force is then applied to the load-bearing beam 110 and the jack 300 through the crossbeam 220. This effect enables the lifting device to operate in various modes, such as vertical and horizontal.

[0039] In this utility model, the terms "install," "connect," "connect," and "fix" should be understood in a broad sense. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; "connected" can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0041] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A wind turbine bearing disassembly and lifting device for disassembling bearings, characterized in that: include: several load-bearing beams (110); at least two connecting frames (200), the connecting frames (200) being detachably connected to the load-bearing beam (110), the connecting frames (200) being provided with connecting plates (210), and the connecting plates (210) being connected to the bearings; At least two jacks (300), the jacks (300) being connected to the load-bearing beam (110).

2. The wind turbine bearing disassembly and lifting device according to claim 1, characterized in that: The connecting frame (200) comprises: A crossbeam (220), wherein the crossbeam (220) is detachably connected to the load-bearing beam (110).

3. The wind turbine bearing disassembly and lifting device according to claim 2, characterized in that: The load-bearing beam (110) is provided with a plurality of crossbeam limiting holes (111), and the crossbeam (220) is detachably connected to one of the crossbeam limiting holes (111).

4. The wind turbine bearing disassembly and lifting device according to claim 3, characterized in that: The crossbeam (220) is provided with a crossbeam fixing hole (221), and the crossbeam fixing hole (221) is detachably connected to the crossbeam limiting hole (111).

5. The wind turbine bearing disassembly and lifting device according to claim 2, characterized in that: The connecting frame (200) further includes: A supporting leg (230), the supporting leg (230) being connected to the crossbeam (220); A support foot (240), the support foot (240) is connected to the support leg (230), and the support foot (240) is connected to the connecting plate (210).

6. The wind turbine bearing disassembly and lifting device according to claim 5, characterized in that: The connecting plate (210) is provided with a screw rod (211), and the screw rod (211) is connected to the supporting leg (230).

7. The wind turbine bearing disassembly and lifting device according to claim 6, characterized in that: The supporting foot (240) is provided with a connecting plate fixing hole (231), and the screw rod (211) is connected to the connecting plate fixing hole (231).

8. The wind turbine bearing disassembly and lifting device according to claim 1, characterized in that: If the number of the load-bearing beams (110) is greater than or equal to two, the multiple load-bearing beams (110) are connected to each other, and a load-bearing plate (120) is provided at the connection.

9. The wind turbine bearing disassembly and lifting device according to claim 1, characterized in that: The jack (300) is provided with a guide rod (310), and the guide rod (310) is connected to the load-bearing beam (110).

10. The wind turbine bearing disassembly and lifting device according to claim 9, characterized in that: The load-bearing beam (110) is provided with a guide hole (112), and the guide hole (112) cooperates with the guide rod (310).

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