Wind power main bearing hoisting device
By designing a wind turbine main bearing hoisting device, using a lifting beam, tie rod column, and tilting clamp, the problem of cracks caused by machining holes in large-size bearings with traditional hoisting tools was solved, and the bearing was able to be stably tilted and transported.
Patent Information
- Application Number
- CN202423290503.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies are prone to producing cracks when machining the hoisting holes of wind turbine main bearing races, leading to bearing breakage. Furthermore, traditional hoisting tools are difficult to adapt to large-sized and heavy bearings.
A wind turbine main bearing hoisting device was designed, which uses a lifting beam, a tie rod column and a flipping clamp. The hoisting and flipping are achieved through a hinged connection, avoiding the need to machine holes in the bearing ring. The stability of the bearing inner ring is ensured by using a telescopic rod and clamping bolts.
It enables the adaptation of bearing inner rings with different diameters and widths, avoiding the risk of cracks caused by machining holes in the bearing rings, and ensuring the stability and safety of the bearing during flipping and handling.
Smart Images
Figure CN223646154U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wind turbine tapered roller main shaft bearings, and in particular, it is a wind turbine main bearing hoisting device. Background Technology
[0002] Currently, the semi-direct drive main shaft bearings of wind turbine generators mainly consist of two single-row tapered roller bearings. As the turbine models increase in size, the bearing dimensions become larger and heavier. The traditional approach is to machine lifting holes in the bearing races for bearing handling and rotation. However, due to limitations in current processing technology, heat treatment can easily cause cracks, leading to bearing breakage. Utility Model Content
[0003] In view of the above problems, the purpose of this application is to provide a wind turbine main bearing hoisting device that is suitable for hoisting, handling and flipping single-row tapered roller main bearing rings. The rings are not machined with holes, and hoisting and flipping actions are achieved by using lifting tools. The operation is convenient and flexible and has a wide range of bearing size adaptability.
[0004] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a wind turbine main bearing hoisting device, comprising a hoisting beam, a tie rod column, and a flipping clamp; the hoisting beam and the flipping clamp are arranged parallel to each other; the flipping clamp is matched with the inner ring of the tapered bearing to be clamped; the tie rod column includes a first tie rod column and a second tie rod column, and the flipping clamp includes a first flipping clamp and a second flipping clamp; the first flipping clamp is hinged to one end of the first tie rod column, and the other end of the first tie rod column is hinged to the hoisting beam; the second flipping clamp is hinged to one end of the second tie rod column, and the other end of the second tie rod column is hinged to the hoisting beam.
[0005] Furthermore, the flipping clamp includes a clamping part and a column connecting part; the clamping part matches the inner ring of the tapered bearing to be clamped, the clamping part is provided with a groove, and the inner ring of the tapered bearing to be clamped is placed in the groove; the outer center position of the groove of the clamping part is connected to the column connecting part, and the clamping part is rotatably connected to the column connecting part; the column connecting part is hinged to the pull rod column.
[0006] Furthermore, it also includes a clamping bolt; the clamping part contacts the two end faces of the inner ring of the tapered bearing to be clamped; the clamping part is provided with a through hole, and the clamping bolt passes through the through hole and contacts the large end face of the inner ring of the tapered bearing to be clamped.
[0007] Furthermore, it also includes a shim; a shim is provided between the large end face of the inner ring of the tapered bearing to be clamped and the clamping part.
[0008] Furthermore, it also includes a tie rod, a telescopic rod, a first limiting bolt, and a second limiting bolt; the first limiting bolt is hinged to the first tie rod column, and the second limiting bolt is hinged to the second tie rod column; the tie rod includes a first tie rod and a second tie rod; the first tie rod is threadedly fitted inside the first limiting bolt, and the second tie rod is fitted inside the second limiting bolt; the first tie rod and the second tie rod are connected by a telescopic rod, and the tie rod is arranged parallel to the lifting beam.
[0009] Furthermore, it also includes a lever handwheel; the telescopic rod includes a shell and an inner core, the shell is a tubular structure, the shell has a threaded helical groove inside, the inner core is fitted inside the shell, and the inner core has an external thread that matches the threaded helical groove; the shell is connected to two sections of lever, the inner core is connected to one end of one section of lever, and the other end of the one section of lever is connected to the lever handwheel.
[0010] Furthermore, it also includes a tie rod clamping device; the tie rod clamping device is configured in a "Z" shape, one end of the tie rod clamping device is hinged to the first tie rod column, and the other end of the tie rod clamping device is hinged to the second tie rod column.
[0011] Furthermore, it also includes reinforcing columns, which include a first reinforcing column and a second reinforcing column; the first flip clamp is hinged to one end of the first reinforcing column, and the other end of the first reinforcing column is hinged to the lifting beam; the second flip clamp is hinged to one end of the second reinforcing column, and the other end of the second reinforcing column is hinged to the lifting beam; the first reinforcing column and the first tie rod column are arranged parallel to each other, and the second reinforcing column and the second tie rod column are arranged parallel to each other.
[0012] Furthermore, it also includes a hook, a ring, and a buckle; a buckle is provided at the center of the side of the lifting beam away from the flip clamp, and the hook and the buckle are connected by a ring.
[0013] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the length of the telescopic rod, the lifting tool can be adapted to the inner rings of tapered bearings of different diameters to be clamped; different flipping and handling clamps can be customized according to the different widths of the bearing rings; the flipping clamp and the pull rod column are connected by a hinge, realizing the technical effect of manually flipping the bearing inner ring; this application avoids the risk of cracking caused by drilling holes in the bearing inner ring, and the bearing inner ring is smoothly transferred to the assembler. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the present invention without the clamping part;
[0016] Figure 3 This is a schematic diagram of the telescopic rod in its extended state.
[0017] Figure 4 Schematic diagram of the telescopic pole;
[0018] Figure 5 A schematic diagram showing the position of the clamping part relative to the inner ring of the tapered bearing to be clamped.
[0019] Figure 6 This is a sectional view of the hinged joint;
[0020] Figure 7 This is a sectional view of the connection between the limit bolt and the tie rod column;
[0021] In the diagram: 1. Hook, 2. Ring, 3. Buckle, 4. Lifting beam, 5. Tie rod tightening device, 6. Reinforcing column, 601. Reinforcing column No. 1, 602. Reinforcing column No. 2, 7. Tie rod column, 701. Tie rod column No. 1, 702. Tie rod column No. 2, 8. Tie rod handwheel, 9. Tie rod, 901. First section tie rod, 902. Second section tie rod, 10. First limit bolt, 11. Telescopic rod, 1101. Outer shell, 1102. Inner core, 12. Second limit bolt, 13. Tilting clamp, 1301. Tilting clamp No. 1, 1302. Tilting clamp No. 2, 14. Clamping part, 15. Column connecting part, 16. Clamping bolt, 17. Washer, 18. Inner ring of tapered bearing to be clamped. Detailed Implementation
[0022] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0023] See appendix Figure 1-6 A wind turbine main bearing hoisting device includes a hoisting beam 4, a tie rod column 7, and a flipping clamp 13; the hoisting beam 4 and the flipping clamp 13 are arranged parallel to each other; the flipping clamp 13 is matched with the inner ring 18 of the tapered bearing to be clamped; the tie rod column 7 includes a first tie rod column 701 and a second tie rod column 702, and the flipping clamp 13 includes a first flipping clamp 1301 and a second flipping clamp 1302; the first flipping clamp 1301 is hinged to one end of the first tie rod column 701, and the other end of the first tie rod column 701 is hinged to the hoisting beam 4; the second flipping clamp 1302 is hinged to one end of the second tie rod column 702, and the other end of the second tie rod column 702 is hinged to the hoisting beam 4.
[0024] Based on the above technical solution, the length of the lifting beam 4 is 4.0m, which can currently cover the outer diameter of the wind turbine main bearing.
[0025] The flipping clamp 13 includes a clamping part 14 and a column connecting part 15; the clamping part 14 matches the inner ring 18 of the tapered bearing to be clamped, the clamping part 14 is provided with a groove, and the inner ring 18 of the tapered bearing to be clamped is placed in the groove; the outer center position of the groove of the clamping part 14 is connected to the column connecting part 15, and the clamping part 14 is rotatably connected to the column connecting part 15; the column connecting part 15 is hinged to the pull rod column 7.
[0026] It also includes a clamping bolt 16; the clamping part 14 contacts the two end faces of the inner ring 18 of the tapered bearing to be clamped; the clamping part 14 is provided with a through hole, and the clamping bolt 16 passes through the through hole and contacts the large end face of the inner ring 18 of the tapered bearing to be clamped.
[0027] It also includes a shim 17; a shim 17 is provided between the large end face of the inner ring 18 of the tapered bearing to be clamped and the clamping part 14.
[0028] Based on the above technical solution, the inner ring 18 of the tapered bearing to be clamped is placed in the groove of the clamping part 14, and the inner ring of the bearing is clamped by tightening the clamp and the shim to ensure that the inner ring of the bearing will not fall off during the flipping process.
[0029] It also includes a tie rod 9, a telescopic rod 11, a first limiting bolt 10, and a second limiting bolt 12; the first limiting bolt 10 is hinged to the first tie rod column 701, and the second limiting bolt 12 is hinged to the second tie rod column 702; the tie rod 9 includes a first tie rod 901 and a second tie rod 902; the first tie rod 901 is threadedly fitted inside the first limiting bolt 10, and the second tie rod 902 is fitted inside the second limiting bolt 12; the first tie rod 901 and the second tie rod 902 are connected by the telescopic rod 11, and the tie rod 9 is arranged parallel to the lifting beam 4; the first limiting bolt 10 has an internal thread, and the outer periphery of the first tie rod 901 has a thread that matches the first limiting bolt 10.
[0030] It also includes a lever handwheel 8; the telescopic rod 11 includes a housing 1101 and an inner core 1102. The housing 1101 is a tubular structure with a threaded helical groove inside. The inner core 1102 is fitted inside the housing 1101 and has an external thread that matches the threaded helical groove. The housing 1101 is connected to a two-section lever 902, and the inner core 1102 is connected to one end of a section lever 901. The other end of the section lever 901 is connected to the lever handwheel 8.
[0031] Based on the above technical solution, the inner core 1102 is provided with a through hole that matches the small shaft, and the section of the pull rod 901 is provided with a through hole that matches the small shaft. The inner core 1102 is connected to the section of the pull rod 901 through the small shaft. The outer shell 1101 and the inner core 1102 are designed to limit each other and fit together to realize the extension and retraction of the telescopic rod.
[0032] It also includes a tie rod clamping device 5; the tie rod clamping device 5 is configured in a "Z" shape, one end of the tie rod clamping device 5 is hinged to the first tie rod column 701, and the other end of the tie rod clamping device 5 is hinged to the second tie rod column 702; the left and right hinge bolts ensure that the tie rod clamping device 5 can rotate in the circumferential plane.
[0033] It also includes reinforcing columns 6, which include a first reinforcing column 601 and a second reinforcing column 602; a first flip clamp 1301 is hinged to one end of the first reinforcing column 601, and the other end of the first reinforcing column 601 is hinged to the lifting beam 4; a second flip clamp 1302 is hinged to one end of the second reinforcing column 602, and the other end of the second reinforcing column 602 is hinged to the lifting beam 4; the first reinforcing column 601 is arranged parallel to the first tie rod column 701, and the second reinforcing column 602 is arranged parallel to the second tie rod column 702.
[0034] It also includes a hook 1, a ring 2 and a buckle 3; the buckle 3 is provided at the center of the side of the lifting beam 4 away from the flip clamp 13, and the hook 1 and the buckle 3 are connected by the ring 2.
[0035] The hinged joint is connected by hinge bolts.
[0036] Working process: The clamp is lifted by hook 1 and placed above the inner ring of the bearing. The pull rod handwheel 8 is turned to rotate a section of the pull rod 901 within the first limit bolt 10, causing the inner core 1102 of the telescopic rod 11 to rotate out of the outer shell 1101. The telescopic rod 11 extends and the left and right columns open. The pull rod handwheel 8 is turned to retract the telescopic rod 11, and the flip clamp 13 is put on the inner ring of the bearing. The flip clamp 13 contacts the upper and lower ends of the inner ring of the bearing. The inner ring of the bearing is clamped by the clamping bolts 16 on the left and right sides and the pads 17 to ensure that the inner ring of the bearing will not fall off. After the worker manually flips the inner ring of the bearing 180 degrees, the inner ring is placed on the platform. The pull rod handwheel 8 is turned again to extend the telescopic rod 11, the left and right columns open, and the flip clamp 13 is disengaged from the inner ring.
[0037] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.
Claims
1. A hoisting device for wind turbine main bearings, characterized in that: The device includes a lifting beam (4), a tie rod column (7), and a flip clamp (13); the lifting beam (4) and the flip clamp (13) are arranged in parallel; the flip clamp (13) is matched with the inner ring (18) of the tapered bearing to be clamped; the tie rod column (7) includes a first tie rod column (701) and a second tie rod column (702), and the flip clamp (13) includes a first flip clamp (1301) and a second flip clamp (1302); the first flip clamp (1301) is hinged to one end of the first tie rod column (701), and the other end of the first tie rod column (701) is hinged to the lifting beam (4); the second flip clamp (1302) is hinged to one end of the second tie rod column (702), and the other end of the second tie rod column (702) is hinged to the lifting beam (4).
2. The wind turbine main bearing hoisting device according to claim 1, characterized in that: The flip clamp (13) includes a clamping part (14) and a column connecting part (15); the clamping part (14) matches the inner ring (18) of the tapered bearing to be clamped, the clamping part (14) is provided with a groove, and the inner ring (18) of the tapered bearing to be clamped is placed in the groove; the outer center position of the groove of the clamping part (14) is connected to the column connecting part (15), and the clamping part (14) is rotatably connected to the column connecting part (15); the column connecting part (15) is hinged to the pull rod column (7).
3. The wind turbine main bearing hoisting device according to claim 2, characterized in that: It also includes a clamping bolt (16); the clamping part (14) contacts the two end faces of the inner ring (18) of the tapered bearing to be clamped; the clamping part (14) is provided with a through hole, and the clamping bolt (16) passes through the through hole and contacts the large end face of the inner ring (18) of the tapered bearing to be clamped.
4. The wind turbine main bearing hoisting device according to claim 3, characterized in that: It also includes a gasket (17); a gasket (17) is provided between the large end face of the inner ring (18) of the tapered bearing to be clamped and the clamping part (14).
5. The wind turbine main bearing hoisting device according to claim 1, characterized in that: It also includes a tie rod (9), a telescopic rod (11), a first limiting bolt (10), and a second limiting bolt (12); the first limiting bolt (10) is hinged to the first tie rod column (701), and the second limiting bolt (12) is hinged to the second tie rod column (702); the tie rod (9) includes a first tie rod (901) and a second tie rod (902); the first tie rod (901) is threadedly fitted into the first limiting bolt (10), and the second tie rod (902) is fitted into the second limiting bolt (12); the first tie rod (901) and the second tie rod (902) are connected by the telescopic rod (11), and the tie rod (9) is set parallel to the lifting beam (4).
6. The wind turbine main bearing hoisting device according to claim 5, characterized in that: It also includes a lever handwheel (8); the telescopic rod (11) includes a shell (1101) and an inner core (1102). The shell (1101) is a tubular structure. The shell (1101) has a threaded helical groove inside. The inner core (1102) is fitted inside the shell (1101). The inner core (1102) has an external thread that matches the threaded helical groove. The shell (1101) is connected to a two-section lever (902). The inner core (1102) is connected to one end of a section lever (901). The other end of the section lever (901) is connected to the lever handwheel (8).
7. The wind turbine main bearing hoisting device according to claim 1, characterized in that: It also includes a tie rod clamping device (5); the tie rod clamping device (5) is configured in a "Z" shape, one end of the tie rod clamping device (5) is hinged to the first tie rod column (701), and the other end of the tie rod clamping device (5) is hinged to the second tie rod column (702).
8. The wind turbine main bearing hoisting device according to claim 1, characterized in that: It also includes a reinforcing column (6), which includes a first reinforcing column (601) and a second reinforcing column (602); the first flip clamp (1301) is hinged to one end of the first reinforcing column (601), and the other end of the first reinforcing column (601) is hinged to the lifting beam (4); the second flip clamp (1302) is hinged to one end of the second reinforcing column (602), and the other end of the second reinforcing column (602) is hinged to the lifting beam (4); the first reinforcing column (601) is parallel to the first tie rod column (701), and the second reinforcing column (602) is parallel to the second tie rod column (702).
9. A wind turbine main bearing hoisting device according to claim 1, characterized in that: It also includes a hook (1), a ring (2) and a buckle (3); the buckle (3) is provided at the center of the side of the lifting beam (4) away from the flip clamp (13), and the hook (1) and the buckle (3) are connected by the ring (2).