Aging acceleration comprehensive test platform for wind power TRB bearing

Abstract

The utility model discloses an aging acceleration comprehensive test platform for a wind power TRB bearing, which relates to the technical field of TRB bearings and comprises a test bench base, and a test loading mechanism is arranged on the test bench base. Comprising a radial loading assembly, an axial loading assembly, a radial loading accompanying overturning loading adjusting assembly and loading arms arranged at the output ends of the radial loading assembly, the axial loading assembly and the radial loading accompanying overturning loading adjusting assembly. By adopting the heavy loading bearing and combining the loading transition flange plate and the center shaft, stable transmission of force is achieved, the stability and durability in the running process are ensured, meanwhile, through the pre-tightening mechanism, an operator only needs to place the TRB bearing in the pre-tightening mechanism and tighten the TRB bearing through the pre-tightening bolt, a stable reference is provided for follow-up TRB bearing installation, and the TRB bearing installation efficiency is improved. And the test accuracy and simulation performance are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of TRB bearing technology, specifically an aging acceleration comprehensive testing platform for wind power TRB bearings. Background Technology

[0002] TRB bearings, or tapered roller bearings, were designed and invented by Henry Timken in 1895. They consist of an inner ring, an outer ring, tapered rollers, and a cage, and are capable of withstanding combined radial and axial loads. TRB bearings are characterized by stable operation, robustness, durability, low failure rate, and low noise, and are widely used in many fields such as wind turbine main shafts, railway axle boxes, and metallurgical rolling equipment.

[0003] Existing TRB bearing aging comprehensive testing platform technology has several significant shortcomings. Traditional TRB bearing testing platforms have limitations in design and functionality. For example, some platforms lack stability when transmitting loads, leading to inaccurate test results. During the test preparation phase, the installation and disassembly of bearings are cumbersome and inefficient. Furthermore, the filling of TRB bearing clearances often uses fixed-size ring bearing retainers, which are difficult to adapt to the actual clearance requirements of different bearings, thus affecting the accuracy and stability of the test. Simultaneously, the structural rigidity and stability of the testing platform are insufficient, making it susceptible to interference from factors such as vibration, leading to increased test errors and even safety risks. Utility Model Content

[0004] To address the problems mentioned in the background technology, this utility model proposes an accelerated aging comprehensive testing platform for wind turbine TRB bearings.

[0005] The purpose of this utility model can be achieved through the following technical solution: an aging accelerated comprehensive test platform for wind power TRB bearings, including a test bench base, on which a test loading mechanism is provided;

[0006] The system includes a radial loading assembly, an axial loading assembly, and a radial loading-accompanying overturning loading adjustment assembly, as well as loading arms disposed at the output ends of the radial loading assembly, the axial loading assembly, and the radial loading-accompanying overturning loading adjustment assembly. The radial loading assembly has two sets symmetrically arranged on both sides of the loading arms for loading the radial load of the TRB bearing. The axial loading assembly is disposed on one side of the radial loading assembly for loading the axial load of the TRB bearing. The radial loading-accompanying overturning loading adjustment assembly is disposed on one side of the axial loading assembly for loading the axial load of the TRB bearing.

[0007] As a further preferred embodiment of this technical solution: the test bench base is equipped with a movable and detachable auxiliary bearing housing and a main bearing housing, and a central shaft is provided on the auxiliary bearing housing and the main bearing housing.

[0008] As a further preferred embodiment of this technical solution: the test bearing housing is provided with a pre-tightening mechanism;

[0009] The pre-tightening mechanism includes a pre-tightening ring mounted on the test bearing housing for fixing the central shaft. The pre-tightening ring is equipped with a pre-tightening bolt for locking.

[0010] As a further preferred embodiment of this technical solution: a positioning retaining ring for determining the installation position of the TRB bearing is sleeved on the outer side of the central shaft.

[0011] As a further preferred embodiment of this technical solution: the loading end of the loading arm is connected to a heavy-duty loading bearing via a loading disk adapter flange, and the heavy-duty loading bearing is provided with a loading transition flange for connecting to the central shaft.

[0012] As a further preferred embodiment of this technical solution: a gap filling assembly is provided between the loading transition flange and the connecting central shaft. The gap filling assembly includes an outer ring fixedly connected to the loading transition flange, an annular bearing retainer ring slidably connected inside the outer ring, a guide block on the annular bearing retainer ring, and a groove for the guide block to slide on the outer ring. A connecting seat is also fixedly connected to the outer wall of the outer ring, and a long rod is fixedly connected to the connecting seat. The outer side of the long rod is threaded with two fixing bolts, which are located on both sides of the guide block for adjusting and fixing the position of the guide block.

[0013] As a further preferred embodiment of this technical solution: a gasket is provided between each of the fixing bolts and the guide block to prevent the fixing bolts from loosening.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, by adopting a heavy-duty loading bearing and combining it with a loading transition flange and a central shaft to achieve stable force transmission, the stability and durability of the operation process are ensured. The heavy-duty loading bearing has a low failure rate and low noise, and is suitable for transmitting large axial and radial loads as well as overturning loads, effectively improving the accuracy and reliability of the test.

[0016] 2. In this utility model, through the pre-tightening mechanism, the operator only needs to place the TRB bearing in the pre-tightening mechanism and tighten it with the pre-tightening bolt, which provides a stable benchmark for the subsequent TRB bearing installation and greatly improves the test accuracy and simulation.

[0017] 3. In this utility model, a sliding adjustable annular bearing retainer ring is used, which can be flexibly adjusted according to the actual gap size to ensure tight filling. At the same time, with the setting of fixing bolts and shims, the movement space of the TRB bearing can be effectively restricted to prevent loosening caused by vibration during the test, thereby further improving the accuracy and stability of the test.

[0018] 4. In this utility model, the auxiliary bearing housing and the main bearing housing are connected by the inclined support column assembly on the test bench base, which effectively enhances the rigidity and stability of the structure, ensures the safe operation of the equipment during the test, and reduces test errors and potential risks caused by vibration and other factors. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 for Figure 2 Partial schematic diagram;

[0022] Figure 4 for Figure 1 Enlarged diagram of point B in the middle.

[0023] Legend: 1. Test bench base; 2. Support bearing housing; 3. Connecting seat; 4. Preload bolt; 5. Long rod; 6. Central shaft; 7. Main test bearing housing; 8. Loading transition flange; 9. Diagonal support column assembly; 10. Loading disc adapter flange; 11. Radial loading assembly; 12. Axial loading assembly; 13. External thread; 14. Loading arm; 15. Heavy-duty loading bearing; 16. Annular bearing retaining ring; 18. Main test TRB bearing; 19. Main test bearing housing; 20. Fixing bolt; 21. Gasket; 22. Guide block; 23. Positioning retaining ring; 24. Support TRB bearing; 25. Support bearing housing; 26. Outer ring sleeve; 27. Preload pressure ring; 28. Torque drive shaft; 29. ​​Servo motor; 30. Torque drive flange; 31. Reducer; 32. Motor housing; 33. Base; 34. Radial loading accompanied by overturning loading adjustment assembly. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1:

[0026] Please see Figure 1 - Figure 4 This application provides a comprehensive aging acceleration testing platform for wind turbine TRB bearings, including a test bench base 1, on which a test loading mechanism is provided; including a radial loading assembly 11, an axial loading assembly 12, and a radial loading-accompanying overturning loading adjustment assembly 34, and loading arms 14 disposed at the output ends of the radial loading assembly 11, the axial loading assembly 12, and the radial loading-accompanying overturning loading adjustment assembly 34. The radial loading assembly 11 is provided in two sets and symmetrically arranged on both sides of the loading arm 14 for loading the radial load of the TRB bearing. The axial loading assembly 12 is disposed on one side of the radial loading assembly 11 for loading the axial load of the TRB bearing. The radial loading-accompanying overturning loading adjustment assembly 34 is disposed on... Axial loading assembly 12 is used to load overturning loads. The above-mentioned radial loading assembly 11, axial loading assembly 12 and radial loading accompanied by overturning loading adjustment assembly 34 are existing means of testing, so they are not described in detail in the figure and specification, only their use is mentioned. The loading end of the loading arm 14 is connected to a heavy-duty loading bearing 15 through the loading disc adapter flange 10. The loading end of the loading arm 14 is connected to the heavy-duty loading bearing 15 through the loading disc adapter flange 10. It is used to transmit large axial loads and radial loads, and is stable in operation, sturdy and durable, with low failure rate and low noise. It is convenient for connecting hydraulic loading components. The heavy-duty loading bearing 15 is provided with a loading transition flange 8 for connecting the central shaft 6 to realize the transmission of force.

[0027] Specifically, after the TRB bearing reaches the set speed, a hydraulic load can be applied automatically or manually. The axial loading assembly 12 applies an axial force to the right by the loading arm 14, and applies the axial force to the main TRB bearing 18 through the loading disc adapter flange 10, heavy-duty loading bearing 15, loading transition flange 8, and central shaft 6 to test the axial load of the TRB bearing. Meanwhile, the radial loading assembly 11 applies a radial force vertically downward or upward (changing periodically) through the loading arm 14, heavy-duty loading bearing 15, loading transition flange 8, and central shaft 6 to the main TRB bearing 18 and the auxiliary TRB bearing 24. The magnitude and direction of the load change periodically according to the process. At the same time, various test data are detected and recorded. Through a heavy load test of one test cycle, combined with physical and chemical testing and raceway wear detection and analysis, a professional judgment is made on the reliability, equivalent service life, and other indicators of the product. Thus, a scientific and systematic test report is generated to determine whether the test bearing meets the design requirements, and the radial load of the TRB bearing is tested.

[0028] In this embodiment, a base 33 is provided on the test bench base 1, a motor mount 32 is installed on the base 33, a servo motor 29 is installed on the motor mount 32, and a reducer 31 is installed on the base 33. The servo motor 29 and the reducer 31 are connected by a torque transmission flange 30. The output end of the reducer 31 is connected to a torque transmission shaft 28 for driving the central shaft 6 to rotate. By starting the servo motor 29, the specified speed is reached, and the speed is reduced by the reducer 31. The rotational power is transmitted to the central shaft 6 through the torque transmission shaft 28, and then to the auxiliary TRB bearing 24 and the main TRB bearing 18, providing a specified speed and stable power for testing the TRB bearing.

[0029] Example 2:

[0030] Based on Embodiment 1, a movable and detachable test bearing housing 2 and a main test bearing housing 7 are installed on the test bench base 1. A central shaft 6 is provided on the test bearing housing 2 and the main test bearing housing 7. A pre-tightening mechanism is provided on the test bearing housing 2. The pre-tightening mechanism includes a pre-tightening ring 27 provided on the test bearing housing 2 for fixing the central shaft 6. A pre-tightening bolt 4 is provided on the pre-tightening ring 27. By rotating the pre-tightening bolt 4, the pre-tightening ring 27 is pre-locked to ensure the stability of the test bearing, facilitate subsequent assembly, and greatly improve the test accuracy and simulation.

[0031] In this embodiment, a test bearing housing 25 is installed on the test bearing housing 2, and the test bearing housing 25 is used to install the test TRB bearing 24. A main test bearing housing 19 is provided on the main test bearing housing 7, and the main test bearing housing 19 is used to install the main test TRB bearing 18. It should be noted that the test bearing housing 2 and the main test bearing housing 7 are separate structures, which facilitates the installation and disassembly of bearings and tooling components. In addition, two inclined support column assemblies 9 are provided on the test bench base 1. The ends of the two inclined support column assemblies 9 away from the test bench base 1 are respectively connected to the test bearing housing 2 and the main test bearing housing 7, which can greatly improve the stability and structural rigidity of the test bearing housing 2 and the main test bearing housing 7, and reduce the weight of the main body of the test bearing housing 2 and the main test bearing housing 7.

[0032] In this embodiment, a positioning retaining ring 23 is sleeved on the outer side of the central shaft 6 to determine the installation position of the TRB bearing, so that the installation position of the TRB bearing is determined each time, ensuring the consistency of the test results, and is used in conjunction with the pre-tightening mechanism.

[0033] Example 3:

[0034] Based on Embodiment 2, a gap filling assembly is provided between the loading transition flange 8 and the connecting central shaft 6. The gap filling assembly includes an outer ring sleeve 26 fixedly connected to the loading transition flange 8. An annular bearing retainer ring 16 is slidably connected inside the outer ring sleeve 26. It should be noted that the annular bearing retainer ring 16 is made of rubber to ensure that it will not scratch the TRB bearing during contact. A guide block 22 is provided on the annular bearing retainer ring 16, and a sliding groove for the guide block 22 to slide is provided on the outer ring sleeve 26. A connecting seat 3 is also fixedly connected to the outer wall of the outer ring sleeve 26. A long rod 5 is fixedly connected to the connecting seat 3. An external thread 13 is provided on the outer side of the long rod 5. Two fixing bolts 20 are threadedly connected to the external thread 13. The fixing bolts 20 are located on both sides of the guide block 22 for adjusting and fixing the position of the guide block 22. A gasket 21 is provided between each fixing bolt 20 and the guide block 22 to prevent the fixing bolt 20 from loosening, thereby improving the stability during the test.

[0035] Specifically, after the TRB bearing is installed on the test bearing housing 2 and the main test bearing housing 7, the two fixing bolts 20 are rotated to give the middle guide block 22 sufficient movement space. The guide block 22 is adjusted to drive the ring bearing retainer 16 to move, and the gap between the loading transition flange 8 and the TRB bearing is filled by the common length of the ring bearing retainer 16 and the outer ring sleeve 26. Then, the fixing bolts 20 are rotated to fix the guide block 22. At the same time, since vibration is easily generated during the test, the shim 21 can prevent the fixing bolts 20 from loosening due to vibration. Thus, the problem of the TRB bearing shaking during the test is avoided by filling the gap of the TRB bearing. This changes the original method of filling with a fixed width ring bearing retainer 16, which was prone to problems such as the ring bearing retainer 16 being too narrow when filling the TRB bearing, resulting in poor filling effect.

[0036] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. An aging-accelerated comprehensive test platform for wind power TRB bearings, comprising a test-bed base (1), characterized in that: The test bench base (1) is provided with a test loading mechanism; The test bench base (1) is provided with a test loading mechanism; the test loading mechanism comprises a radial loading assembly (11), an axial loading assembly (12) and a radial loading accompanied overturning load adjusting assembly (34), and a loading arm (14) arranged at the output end of the radial loading assembly (11), the axial loading assembly (12) and the radial loading accompanied overturning load adjusting assembly (34); the radial loading assembly (11) is arranged in two groups and symmetrically arranged on both sides of the loading arm (14) and used for loading the radial load of the TRB bearing; the axial loading assembly (12) is arranged beside the radial loading assembly (11) and used for loading the axial load of the TRB bearing; and the radial loading accompanied overturning load adjusting assembly (34) is arranged beside the axial loading assembly (12) and used for loading the overturning load.

2. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 1, characterized in that, The test bench base (1) is provided with a test loading mechanism; the test loading mechanism comprises a radial loading assembly (11), an axial loading assembly (12) and a radial loading accompanied overturning load adjusting assembly (34), and a loading arm (14) arranged at the output end of the radial loading assembly (11), the axial loading assembly (12) and the radial loading accompanied overturning load adjusting assembly (34); the radial loading assembly (11) is arranged in two groups and symmetrically arranged on both sides of the loading arm (14) and used for loading the radial load of the TRB bearing; the axial loading assembly (12) is arranged beside the radial loading assembly (11) and used for loading the axial load of the TRB bearing; and the radial loading accompanied overturning load adjusting assembly (34) is arranged beside the axial loading assembly (12) and used for loading the overturning load.

3. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 2, characterized in that, The test bench base (1) is provided with a test loading mechanism; the test loading mechanism comprises a radial loading assembly (11), an axial loading assembly (12) and a radial loading accompanied overturning load adjusting assembly (34), and a loading arm (14) arranged at the output end of the radial loading assembly (11), the axial loading assembly (12) and the radial loading accompanied overturning load adjusting assembly (34); the radial loading assembly (11) is arranged in two groups and symmetrically arranged on both sides of the loading arm (14) and used for loading the radial load of the TRB bearing; the axial loading assembly (12) is arranged beside the radial loading assembly (11) and used for loading the axial load of the TRB bearing; and the radial loading accompanied overturning load adjusting assembly (34) is arranged beside the axial loading assembly (12) and used for loading the overturning load. The test bench base (1) is provided with a test loading mechanism; the test loading mechanism comprises a radial loading assembly (11), an axial loading assembly (12) and a radial loading accompanied overturning load adjusting assembly (34), and a loading arm (14) arranged at the output end of the radial loading assembly (11), the axial loading assembly (12) and the radial loading accompanied overturning load adjusting assembly (34); the radial loading assembly (11) is arranged in two groups and symmetrically arranged on both sides of the loading arm (14) and used for loading the radial load of the TRB bearing; the axial loading assembly (12) is arranged beside the radial loading assembly (11) and used for loading the axial load of the TRB bearing; and the radial loading accompanied overturning load adjusting assembly (34) is arranged beside the axial loading assembly (12) and used for loading the overturning load.

4. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 2, characterized in that, The loading end of the loading arm (14) is connected with a heavy loading bearing (15) through a loading disc adapter flange (10), and the heavy loading bearing (15) is provided with a loading transition flange plate (8) for connecting the central shaft (6).

5. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 2, characterized in that, The loading transition flange plate (8) and the connecting central shaft (6) are provided with a gap filling assembly, the gap filling assembly comprises an outer ring sleeve (26) fixedly connected to the loading transition flange plate (8), an annular bearing retainer (16) slidably connected to the inner portion of the outer ring sleeve (26), a guide block (22) arranged on the annular bearing retainer (16), a sliding groove for the guide block (22) formed in the outer ring sleeve (26), a connecting seat (3) fixedly connected to the outer wall of the outer ring sleeve (26), a long rod (5) fixedly connected to the connecting seat (3), an outer thread (13) arranged on the outer side of the long rod (5), two fixed bolts (20) threadedly connected to the outer thread (13) and arranged on both sides of the guide block (22) and used for adjusting and fixing the position of the guide block (22).

6. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 5, characterized in that, A gasket (21) is arranged between each fixed bolt (20) and the guide block (22) and used for preventing the loosening of the fixed bolt (20).

7. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 6, characterized in that, ​ 8. The accelerated aging comprehensive test platform for wind power TRB bearings according to claim 2, characterized in that, The test bench base (1) is provided with a base (33), a motor seat (32) is installed on the base (33), a servo motor (29) is installed on the motor seat (32), a speed reducer (31) is installed on the base (33), the servo motor (29) and the speed reducer (31) are connected through a torque transmission flange (30), and a torque transmission shaft (28) for driving the central shaft (6) to rotate is connected to the output end of the speed reducer (31).

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