Fixing device for diagnosis of wind driven generator bearing
By designing a wind turbine bearing diagnostic device that includes an outer fixing assembly and an inner clamping assembly, the problem that existing devices can only fix a single-size bearing is solved, and rapid fixing and efficient diagnosis of bearings of different sizes is achieved, which improves the Test efficiency.
Patent Information
- Application Number
- CN202421032665.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing wind turbine bearing diagnostic devices can only fix bearings of a single size, which is difficult to adapt to bearings of different sizes, and the test efficiency is low, which affects working efficiency.
A fixing device including a base, a support column, a top plate, an outer fixing assembly and an inner clamping assembly are designed. The outer wall of the bearing is clamped and fixed by the outer fixing assembly, and the inner clamping assembly clamps the inner wall of the bearing and makes the inner wall of the bearing be clamped and made It rotates at a constant speed, and uses the meshing transmission of the servo motor and the stepper motor to achieve rapid fixation and rotation diagnosis of the bearing.
It realizes rapid fixing and efficient diagnosis of bearings of different sizes, avoids the situation of loosening of bearings during detection, judges the good and bad state of bearings through sound, and improves the testing efficiency.
Smart Images
Figure CN222200293U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bearing diagnosis, and in particular relates to a fixing device for wind generator bearing diagnosis. Background Art
[0002] Bearings are an important component in wind turbines. The existing method for diagnosing bearings is to diagnose bearing faults through the sound of the bearings' rotation. When diagnosing bearing faults, the bearings need to be mounted on a diagnostic device and fixed to rotate continuously.
[0003] Traditional bearing fault diagnosis devices can often only fix bearings of a single size, which is not convenient for fixing bearings of different sizes, and the test efficiency is low, which affects work efficiency. Utility Model Content
[0004] The technical problem to be solved by the utility model is that only a single-size bearing can be fixed, and it is inconvenient to fix bearings of different sizes, and the testing efficiency is low, which affects the work efficiency.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a fixing device for wind turbine bearing diagnosis, including a base, a support column and a top plate, the support column is fixedly connected to the top wall of the base and the support column is symmetrically arranged, the top plate is fixedly connected to the upper end of the support column, and also includes an outer fixing component and an inner clamping component, the outer fixing component is arranged above the base, and the inner clamping component is arranged in the middle position of the top plate. The outer wall of the bearing is first clamped and fixed by the outer fixing component, and then the inner wall of the bearing is clamped and rotated by the inner clamping component to diagnose the bearing.
[0006] Furthermore, through holes are provided on both sides of the top plate, and guide rods are provided between the inner walls of the through holes. The outer fixing assembly includes a fixing plate, a rotating shaft, a disc, a sliding rod and a connecting rod. The fixing plate is fixedly connected to the top wall of the base, the rotating shaft is rotatably connected to the outer wall of the fixing plate, the disc is fixedly connected to one end of the rotating shaft, the sliding rod passes through the guide rod and is slidably connected to the guide rod, the connecting rod is movably connected between the lower end of the sliding rod and the outer wall of the disc, the connecting rod is eccentrically connected to the disc, the upper end of the sliding rod is fixedly connected to an outer clamping block, the middle position of the rotating shaft is fixedly connected to a worm gear, a servo motor is fixedly installed on the top wall of the base, a worm is fixedly connected to the output end of the servo motor, and the worm is meshed with the worm gear.
[0007] Furthermore, the inner clamping assembly includes a turntable, an electric push rod, a connecting plate, an adjusting frame, a slide and an inner clamping block, the turntable is rotatably connected to the middle position of the top plate, a travel hole is provided in the middle position of the turntable, a guide column is fixedly connected between the inner walls of the travel hole, the electric push rod is fixedly connected to the bottom wall of the turntable and the electric push rod is symmetrically arranged, the connecting plate is fixedly connected to the free end of the electric push rod, the adjusting frame is fixedly connected to the connecting plate, the slide passes through the guide column and is slidably connected to the guide column, the slide is symmetrically arranged, the inner clamping block is fixedly connected to the upper end of the slide, the outer side wall of the turntable is fixedly connected to a gear ring, the bottom wall of the top plate is fixedly mounted with a stepping motor, the output end of the stepping motor is fixedly connected to a gear, and the gear and the gear ring are meshed.
[0008] Furthermore, an outer ring is fixedly connected to the fixed plate, an inner ring is fixedly connected to the fixed plate, the radius of the inner ring is smaller than the radius of the outer ring, a cylinder is fixedly connected to the outer wall of the disc, the cylinder is arranged at the gap between the outer ring and the inner ring away from one end of the disc, a limit block is provided at one end of the cylinder and the limit blocks are symmetrically arranged, and the limit blocks are arranged on both sides of the outer ring and the inner ring.
[0009] Furthermore, the adjustment frame is arranged in an inverted V shape, and the outer clamping block and the inner clamping block are both arranged in an arc shape.
[0010] Furthermore, the bottom of the outer side wall of the sliding frame contacts the outer side wall of the adjusting frame.
[0011] After adopting the above structure, the beneficial effects of the utility model are as follows: The utility model proposes a fixing device for wind turbine bearing diagnosis:
[0012] (1) The outer wall of the bearing to be tested can be quickly clamped and fixed by the outer fixing assembly, and the worm and worm wheel have a self-locking effect, which prevents the bearing from loosening during testing;
[0013] (2) The inner wall of the bearing can be clamped by the inner clamping assembly and the bearing can be rotated at a constant speed through the meshing transmission of the gear and the ring gear, and the quality of the bearing can be judged by the sound. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0015] Figure 1 This is a schematic diagram of the overall structure of a wind turbine bearing diagnosis fixing device proposed by the utility model;
[0016] Figure 2This is a front view of a fixing device for wind turbine bearing diagnosis proposed by the utility model;
[0017] Figure 3 A schematic diagram of the three-dimensional structure of a fixing device for wind turbine bearing diagnosis proposed by the utility model;
[0018] Figure 4 A side view of a fixing device for wind turbine bearing diagnosis proposed by the utility model;
[0019] Figure 5 This is a cross-sectional view of a top plate of a fixing device for wind turbine bearing diagnosis proposed by the utility model.
[0020] In the attached drawings: 1. base, 2. support column, 3. top plate, 4. through hole, 5. guide rod, 6. fixed plate, 7. rotating shaft, 8. disc, 9. sliding rod, 10. connecting rod, 11. outer clamping block, 12. worm gear, 13. servo motor, 14. worm, 15. turntable, 16. electric push rod, 17. connecting plate, 18. adjustment frame, 19. slide, 20. inner clamping block, 21. travel hole, 22. guide column, 23. gear ring, 24. stepping motor, 25. gear, 26. outer ring, 27. inner ring, 28. cylinder, 29. limit block. DETAILED DESCRIPTION
[0021] like Figure 1-2 As shown, a fixing device for wind turbine bearing diagnosis includes a base 1, a support column 2 and a top plate 3. The support column 2 is fixedly connected to the top wall of the base 1 and the support column 2 is symmetrically arranged. The top plate 3 is fixedly connected to the upper end of the support column 2. It also includes an outer fixing component and an inner clamping component. The outer fixing component is arranged above the base 1, and the inner clamping component is arranged in the middle position of the top plate 3.
[0022] like Figure 1-5 As shown, in order to quickly clamp and fix the outer wall of the bearing, through holes 4 are provided on both sides of the top plate 3, and guide rods 5 are provided between the inner walls of the through holes 4. The outer fixing assembly includes a fixed plate 6, a rotating shaft 7, a disk 8, a sliding rod 9 and a connecting rod 10. The fixed plate 6 is fixedly connected to the top wall of the base 1, the rotating shaft 7 is rotatably connected to the outer wall of the fixed plate 6, the disk 8 is fixedly connected to one end of the rotating shaft 7, the sliding rod 9 passes through the guide rod 5 and is slidably connected to the guide rod 5, the connecting rod 10 is movably connected between the lower end of the sliding rod 9 and the outer wall of the disk 8, the connecting rod 10 is eccentrically connected to the disk 8, the upper end of the sliding rod 9 is fixedly connected to an outer clamping block 11, the middle position of the rotating shaft 7 is fixedly connected to a worm gear 12, the top wall of the base 1 is fixedly installed with a servo motor 13, the output end of the servo motor 13 is fixedly connected to a worm 14, and the worm 14 is meshed with the worm gear 12.
[0023] like Figure 1-5As shown, in order to conveniently clamp the inner wall of the bearing and make it rotate, and perform diagnosis work on the bearing, the inner clamping assembly includes a turntable 15, an electric push rod 16, a connecting plate 17, an adjustment frame 18, a slide 19 and an inner clamping block 20. The turntable 15 is rotatably connected to the middle position of the top plate 3. The middle position of the turntable 15 is provided with a travel hole 21. The inner wall of the travel hole 21 is fixedly connected with a guide column 22. The electric push rod 16 is fixedly connected to the bottom wall of the turntable 15 and the electric push rod 16 is The arrangement is symmetrical, with the connecting plate 17 being fixedly connected to the free end of the electric push rod 16, the adjusting frame 18 being fixedly connected to the connecting plate 17, the slide 19 penetrating the guide column 22 and being slidably connected to the guide column 22, the slide 19 being symmetrically arranged, the inner clamping block 20 being fixedly connected to the upper end of the slide 19, the outer side wall of the turntable 15 being fixedly connected to a gear ring 23, the bottom wall of the top plate 3 being fixedly mounted with a stepping motor 24, the output end of the stepping motor 24 being fixedly connected to a gear 25, and the gear 25 and the gear ring 23 being meshed.
[0024] In order to increase the stability of the disc 8 during rotation, an outer ring 26 is fixedly connected to the fixed plate 6, an inner ring 27 is fixedly connected to the fixed plate 6, the radius of the inner ring 27 is smaller than the radius of the outer ring 26, and a cylinder 28 is fixedly connected to the outer wall of the disc 8. The end of the cylinder 28 away from the disc 8 is arranged through the gap between the outer ring 26 and the inner ring 27. A limit block 29 is provided at one end of the cylinder 28, and the limit blocks 29 are symmetrically arranged. The limit blocks 29 are arranged on both sides of the outer ring 26 and the inner ring 27.
[0025] The adjustment frame 18 is arranged in an inverted V shape, the outer clamping block 11 and the inner clamping block 20 are arranged in an arc shape, and the bottom of the outer wall of the sliding frame 19 contacts the outer wall of the adjustment frame 18 .
[0026] During specific use, multiple groups of rubber blocks can be set on the top wall of the top plate 3, and the height of the rubber blocks is slightly higher than the height of the top wall of the turntable 15. The bearing to be diagnosed is placed on the top of the top plate 3, and then the servo motor 13 is turned on. The worm 14 rotates to make the worm wheel 12 drive the disk 8 at one end of the rotating shaft 7 to rotate. The rotation of the disk 8 drives the cylinder 28 to rotate between the outer ring 26 and the inner ring 27. The limit block 29 increases the stability of the cylinder 28 during rotation. The two groups of connecting rods 10 respectively drive the sliding rods 9 connected thereto to move. The outer clamping block 11 clamps and fixes the outer side wall of the bearing, and then the electric push rod 16 is controlled to shrink, and the connecting plate 17 drives the adjusting frame 18 to move up, so that the slide 19 can move toward each other on the guide column 22 to clamp the inner wall of the bearing, and then the stepping motor 24 is turned on. The rotation of the gear 25 causes the gear ring 23 to drive the turntable 15 to rotate at a uniform speed, so that the bearing can be rotated, and the sound emitted when the bearing rotates can be used to judge the quality of the bearing.
[0027] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.
Claims
1. A fixing device for wind turbine bearing diagnosis, comprising a base, a support column and a top plate, wherein the support column is fixedly connected to the top wall of the base and the support columns are symmetrically arranged, and the top plate is fixedly connected to the upper end of the support column, characterized in that: It also includes an outer fixing component and an inner clamping component. The outer fixing component is arranged above the base, and the inner clamping component is arranged in the middle position of the top plate. The outer wall of the bearing is first clamped and fixed by the outer fixing component, and then the inner wall of the bearing is clamped and rotated by the inner clamping component to diagnose the bearing.
2. A wind turbine bearing diagnosis fixture according to claim 1, characterized in that: The top plate is provided with perforations on both sides, and a guide rod is provided between the inner walls of the perforations. The outer fixing assembly comprises a fixing plate, a rotating shaft, a disc, a sliding rod and a connecting rod. The fixing plate is fixedly connected to the top wall of the base, the rotating shaft is rotatably connected to the outer wall of the fixing plate, the disc is fixedly connected to one end of the rotating shaft, the sliding rod passes through the guide rod and is slidably connected to the guide rod, the connecting rod is movably connected between the lower end of the sliding rod and the outer wall of the disc, the connecting rod is eccentrically connected to the disc, the upper end of the sliding rod is fixedly connected to an outer clamping block, the middle position of the rotating shaft is fixedly connected to a worm gear, the top wall of the base is fixedly installed with a servo motor, the output end of the servo motor is fixedly connected to a worm, and the worm gear is meshed with the worm gear.
3. A wind turbine bearing diagnosis fixture according to claim 2, characterized in that: The inner clamping assembly comprises a turntable, an electric push rod, a connecting plate, an adjusting frame, a slide and an inner clamping block, the turntable is rotatably connected to the middle position of the top plate, a travel hole is provided in the middle position of the turntable, a guide column is fixedly connected between the inner walls of the travel hole, the electric push rod is fixedly connected to the bottom wall of the turntable and the electric push rod is symmetrically arranged, the connecting plate is fixedly connected to the free end of the electric push rod, the adjusting frame is fixedly connected to the connecting plate, the slide passes through the guide column and is slidably connected to the guide column, the slide is symmetrically arranged, the inner clamping block is fixedly connected to the upper end of the slide, the outer side wall of the turntable is fixedly connected to a gear ring, the bottom wall of the top plate is fixedly installed with a stepping motor, the output end of the stepping motor is fixedly connected with a gear, and the gear and the gear ring are meshed.
4. A wind turbine bearing diagnosis fixture according to claim 3, characterized in that: An outer ring is fixedly connected to the fixed plate, an inner ring is fixedly connected to the fixed plate, the radius of the inner ring is smaller than the radius of the outer ring, a cylinder is fixedly connected to the outer wall of the disc, the end of the cylinder away from the disc is arranged through the gap between the outer ring and the inner ring, a limit block is provided at one end of the cylinder and the limit blocks are symmetrically arranged, and the limit blocks are arranged on both sides of the outer ring and the inner ring.
5. A wind turbine bearing diagnosis fixture according to claim 4, characterized in that: The adjustment frame is arranged in an inverted V shape, and the outer clamping block and the inner clamping block are arranged in an arc shape.
6. A wind turbine bearing diagnosis fixture according to claim 5, characterized in that: The bottom of the outer side wall of the sliding frame contacts the outer side wall of the adjusting frame.