Large bearing gear ring wear test bench

Abstract

According to the large bearing gear ring wear test bench provided by the invention, the bearing stand is rotatably connected with the gear ring, and the meshing design of the inner meshing teeth of the gear ring and the outer meshing teeth of the test piece is adopted, so that the working environment of a shaft lever of a wind driven generator can be accurately simulated, and the contact end between the gear ring and the bearing stand of the test bench is defined as a transmission part; and the contact end connected with the test piece is an occlusion part, so that the gear ring can accurately simulate power input and gear ring stress conditions under actual working conditions in stress and transmission processes. The motor driving test piece can perform bidirectional power input test in clockwise and anticlockwise directions, so that the operation state of the wind driven generator shaft lever under different wind directions and load conditions is simulated, the connection between the gear ring and the bearing stand is optimized, the precision and reliability of the wear test are improved, and the test efficiency is improved. And the performance of the large bearing gear ring in an actual working environment is reflected more comprehensively.

Description

Technical Field

[0001] The present application relates to a wear test bench, and in particular to a large bearing gear ring wear test bench. Background Art

[0002] Large bearing ring gears are widely used in heavy machinery and equipment, such as wind turbines and cranes. These ring gears will wear out during long-term operation, directly affecting the operational stability and service life of the equipment. Traditional large bearing ring gear wear test benches typically use a fixed test piece and a gear ring to perform single-direction drive tests to evaluate the ring gear wear. However, due to design limitations, these test benches are unable to simulate complex operating conditions, especially the harsh environment of wind turbine shafts. As a result, the test results often fail to truly reflect the wear state of the ring gear under actual operating conditions.

[0003] To address the problem of traditional test benches being unable to simulate the working environment of wind turbine shafts, some existing technologies have proposed improvement solutions. These solutions typically attempt to more realistically simulate the working conditions of wind turbines by introducing technical means such as adjustable loads and variable speed drives during the test process. For example, some test benches add multi-degree-of-freedom adjustment devices between the gear ring and the bearing table, allowing the gear ring to undergo stress testing at different angles and directions to more comprehensively assess its wear. Although these technical solutions have improved test accuracy to a certain extent, they still suffer from the problem of single test conditions and are unable to fully simulate the working conditions of wind turbine shafts in complex environments.

[0004] Although the existing technology has made certain progress in simulating the working environment of the wind turbine shaft, there are still deficiencies in the design of the gear ring and the bearing table. The transmission connection between the gear ring and the bearing table of the existing test bench often lacks precise matching, resulting in the inability to accurately simulate the force of the gear ring during the test. In addition, the design of the meshing part between the gear ring and the test piece is not perfect, and two-way power input cannot be effectively realized, thereby limiting the performance of the test bench in simulating the complex working conditions of the wind turbine. These defects make it difficult to achieve the expected accuracy and reliability of the test results, and it is impossible to fully evaluate the actual wear of the large bearing gear ring in the wind turbine. Therefore, further optimizing the transmission connection design between the gear ring and the bearing table to improve the accuracy and flexibility of the test is a problem that needs to be solved urgently. Utility Model Content

[0005] In view of this, it is necessary to provide a large-scale bearing gear ring wear test bench that can simulate the working environment of wind turbine bearings to solve the above problems.

[0006] An embodiment of the present application provides a large bearing gear ring wear test bench, comprising an external test piece and a motor, wherein the test piece is fixedly connected to the motor, and the large bearing gear ring wear test bench comprises:

[0007] A bearing platform and a gear ring, wherein the gear ring is rotatably connected to the bearing platform and is provided with internal teeth. The contact end between the gear ring and the bearing platform is defined as a transmission part, and the contact end between the gear ring and the test piece is defined as an engagement part. The transmission part is transmission-connected to the bearing platform, and one end of the test piece is provided with external teeth, and the engagement part is connected to the external gear;

[0008] The motor drives the test piece to perform a driving test in a clockwise or counterclockwise direction.

[0009] In at least one embodiment of the present application, the bearing platform includes a bearing, and a movable groove is provided on the contact surface between the bearing platform and the transmission part. A plurality of bearings are arranged in the movable groove, and one end of the bearing abuts the inner wall of the movable groove, and the other end abuts the transmission part. The transmission part is connected to the bearing platform through a plurality of bearings.

[0010] In at least one embodiment of the present application, the test piece includes a test end and a fixed end, and the end where the test piece is connected to the large bearing gear ring wear test bench is defined as the test end, and the end where the test piece is connected to the motor is defined as the fixed end. The test end is engaged with the gear ring, and a flange opening is provided on the fixed end, and the fixed end is connected to the motor flange.

[0011] In at least one embodiment of the present application, the large bearing gear ring wear test bench includes a fixed bracket, which is located at one end of the wear test bench and is fixedly connected to the wear test bench.

[0012] In at least one embodiment of the present application, the fixed bracket includes a fixing part, which is located at the connecting end of the fixed bracket and the wear test bench, and is fixedly connected to the bearing bench. The fixing part is a fixed plate structure arranged in parallel. The large bearing gear ring wear test bench is an annular frustum structure, and the fixing parts are symmetrically distributed along the vertical center axis of the gear ring.

[0013] In at least one embodiment of the present application, the bearing platform is a flange structure, a threaded through hole is provided on the fixing member, and the fixing member is bolted to the bearing platform.

[0014] In at least one embodiment of the present application, the large bearing gear ring wear test bench has an extension line from the center to both ends facing horizontally, and when observed in the vertical direction, the fixed bracket is provided at the lower end of the wear test bench.

[0015] In at least one embodiment of the present application, when observed along the central axis of the gear ring, the engaging portion is the area of ​​the internal gear containing the gear ring, and the transmission portion is the contact surface of the gear ring away from the engaging portion and with the bearing platform.

[0016] In at least one embodiment of the present application, the bearing platform and the gear ring are both made of alloy steel.

[0017] In at least one embodiment of the present application, a fixing group is provided at the lower end of the fixing bracket, and the fixing group is composed of multiple fixing plates arranged parallel to each other. One end of the fixing group is fixedly connected to the fixing bracket, and the other end is fixed to the bottom surface.

[0018] The large bearing gear ring wear test bench provided above can achieve accurate simulation of the working environment of the wind turbine shaft through the rotating connection between the bearing table and the gear ring, and the meshing design of the internal meshing teeth of the gear ring and the external meshing teeth of the test piece. By defining the contact end of the gear ring and the bearing table as the transmission part, and the contact end connected to the test piece as the engagement part, the gear ring can more accurately simulate the power input and gear ring force conditions under actual working conditions during the force and transmission process. At the same time, the motor-driven test piece can be tested in clockwise and counterclockwise directions, providing two-way power input, simulating the operating state of the wind turbine shaft under different wind directions and load conditions. This design improves the accuracy and reliability of the wear test through the optimized connection between the gear ring and the bearing table, and can more comprehensively and truly reflect the actual working environment of the large bearing gear ring in the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a large bearing gear ring wear test bench;

[0020] Figure 2 This is a structural diagram of the bearing platform and gear ring;

[0021] Figure 3 It is a structural diagram of the external components;

[0022] Figure 4 This is a structural diagram of the fixed bracket.

[0023] Description of main component symbols

[0024] 1. Test piece; 2. Motor; 3. Bearing stand; 4. Gear ring; 5. Transmission part; 6. Engaging part; 7. External gear; 8. Bearing; 9. Movable groove; 10. Flange; 11. Fixed bracket; 12. Fixed part; 13. Fixed group; 14. Internal gear; 100. A large bearing gear ring wear test bench. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0026] It should be noted that when a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0027] An embodiment of the present application provides a large bearing gear ring wear test bench, comprising an external test piece and a motor, wherein the test piece is fixedly connected to the motor, and the large bearing gear ring wear test bench comprises:

[0028] A bearing platform and a gear ring, wherein the gear ring is rotatably connected to the bearing platform and is provided with internal teeth. The contact end between the gear ring and the bearing platform is defined as a transmission part, and the contact end between the gear ring and the test piece is defined as an engagement part. The transmission part is transmission-connected to the bearing platform, and one end of the test piece is provided with external teeth, and the engagement part is connected to the external gear;

[0029] The motor drives the test piece to perform a driving test in a clockwise or counterclockwise direction.

[0030] The large bearing gear ring wear test bench provided above can achieve accurate simulation of the working environment of the wind turbine shaft through the rotating connection between the bearing table and the gear ring, and the meshing design of the internal meshing teeth of the gear ring and the external meshing teeth of the test piece. By defining the contact end of the gear ring and the bearing table as the transmission part, and the contact end connected to the test piece as the engagement part, the gear ring can more accurately simulate the power input and gear ring force conditions under actual working conditions during the force and transmission process. At the same time, the motor-driven test piece can be tested in clockwise and counterclockwise directions, providing two-way power input, simulating the operating state of the wind turbine shaft under different wind directions and load conditions. This design improves the accuracy and reliability of the wear test through the optimized connection between the gear ring and the bearing table, and can more comprehensively and truly reflect the actual working environment of the large bearing gear ring in the wind turbine.

[0031] The following is combined with Figure 1 -, some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] An embodiment of the present application provides a large bearing gear ring wear test bench 100, comprising an external test piece 1 and a motor 2, wherein the test piece 1 is fixedly connected to the motor 2. The large bearing gear ring wear test bench 100 comprises:

[0033] The bearing platform 3 and the gear ring 4 are rotatably connected to the bearing platform 3 and are provided with an internal gear 14. The contact end between the gear ring 4 and the bearing platform 3 is defined as a transmission part 5, and the contact end between the gear ring 4 and the test piece 1 is defined as an engagement part 6. The transmission part 5 is transmission-connected to the bearing platform 3. One end of the test piece 1 is provided with an external gear 7, and the engagement part 6 is gear-connected to the external gear 7.

[0034] The motor 2 drives the test piece 1 in a clockwise or counterclockwise direction to perform a driving test.

[0035] Specifically, the design can realize the rotational motion of the test piece 1 by driving the motor 2, simulating the wear of the gear ring in actual applications. Application scenarios include gear ring wear tests in heavy machinery and equipment such as wind turbines 2 and large cranes. By simulating actual working conditions for testing, the wear state and performance of the gear ring in long-term operation can be evaluated. This design allows the performance of the gear ring to be tested under different loads and speeds, thereby improving the comprehensiveness and accuracy of the test. The rotating connection allows the gear ring 4 to rotate smoothly during the test, reducing friction and wear, and ensuring the smoothness of the test. The design of the bearing stand 3 ensures the stable rotation of the gear ring 4, improving the accuracy and consistency of the test. The setting of the internal teeth 14 ensures effective engagement between the gear ring 4 and the test piece 1, and can accurately transmit rotational power. This design helps to simulate the load conditions in actual applications and improve the reliability and authenticity of the test. The design of the transmission unit 5 ensures efficient transmission of the drive system and stable rotation of the gear ring 4. This connection design reduces energy loss and improves test efficiency. The ring's meshing portion 6 connects to the test piece 1 via external teeth 7, forming a complete gear transmission system. This connection design ensures precise engagement between the gear ring 4 and the test piece 1, allowing the test process to accurately simulate the working conditions of the ring gear in actual applications, enhancing the authenticity and reliability of the test. The motor 2 can drive the test piece 1 to rotate clockwise or counterclockwise. The bidirectional rotation function enables the test bench to simulate the wear of the ring gear in different directions, increasing the comprehensiveness of the test, providing more realistic wear data, and facilitating accurate evaluation of the ring gear's performance and lifespan.

[0036] In a specific example, the bearing platform 3 includes a bearing 8, and a movable groove 9 is provided on the contact surface between the bearing platform 3 and the transmission part 5. Multiple bearings 8 are arranged in the movable groove 9, and one end of the bearing 8 abuts the inner wall of the movable groove 9, and the other end abuts the transmission part 5. The transmission part 5 is connected to the bearing platform 3 through multiple bearings 8.

[0037] Specifically, the design of the bearing platform 3 includes multiple bearings 8, which are installed in movable grooves 9, so that the bearings 8 can move freely in the grooves and ensure that the movement of the bearings 8 will not affect the fit between the transmission part 5 and the bearing platform 3. Specifically, the provision of the bearings 8 allows the bearing platform 3 to maintain higher stability during the test, while reducing the friction and wear caused by the contact between the gear ring 4 and the bearing platform 3. This design disperses the force through multiple bearings 8, reduces the load on the transmission part 5, and improves the transmission efficiency. As a result, the test bench can provide more accurate and consistent test results under long-term and high-load test conditions, simulating the working state of the gear ring in actual use. For the testing of the gear ring of a large wind turbine 2, this design can significantly improve the reliability and accuracy of the test.

[0038] In a specific example, the test piece 1 includes a test end and a fixed end. The connection end of the test piece 1 and the large bearing 8 gear ring wear test bench is defined as the test end, and the connection end of the test piece 1 and the motor 2 is defined as the fixed end. The test end is engaged with the gear ring 4, and a flange opening 10 is provided on the fixed end, and the fixed end is flange-connected to the motor 2.

[0039] Specifically, the design of the test piece 1 is divided into a test end and a fixed end. One end of the test piece 1 is used to engage with the gear ring 4, and the fixed end is connected to the motor 2 through the flange opening 10. The structural design of the test end ensures that the gear ring 4 can effectively engage and apply the necessary load during the test, thereby simulating real working conditions. The fixed end is connected to the motor 2 through a flange, ensuring that the test piece 1 can stably receive the driving force transmitted by the motor 2 during the test. This structure allows the test piece 1 to remain stable during long-term high-load operations and avoids errors caused by loose connections of the test piece 1. This design is particularly suitable for gear ring wear testing of large mechanical equipment that needs to simulate high-intensity working conditions, such as the gear ring of a wind turbine 2, ensuring high efficiency and accuracy during the test process.

[0040] In a specific example, the large bearing 8 gear ring wear test bench includes a fixed bracket 11, and the fixed bracket 11 is located at one end of the wear test bench, and the fixed bracket 11 is fixedly connected to the wear test bench.

[0041] Specifically, the fixed bracket 11 is designed to be located at one end of the wear test bench and is fixedly connected to the test bench. The function of the fixed bracket 11 is to provide additional stability for the test bench to prevent displacement or deformation of the test bench due to vibration or other external factors during the test. This design improves the overall stability of the test bench and ensures that the test results will not be affected by the instability of the mechanical structure during high-load and long-term tests. The stability of the fixed bracket 11 is crucial for conducting high-precision gear ring wear tests, especially when simulating the working conditions of large mechanical equipment such as wind turbines 2.

[0042] In a specific example, the fixed bracket 11 includes a fixing part 12, which is located at the connection end of the fixed bracket 11 and the wear test bench, and is fixedly connected to the bearing table 3. The fixing part 12 is a fixed plate structure arranged in parallel. The large bearing 8 gear ring wear test bench is an annular frustum structure, and the fixing part 12 is symmetrically distributed along the vertical center axis of the gear ring 4.

[0043] Specifically, the fixing member 12 of the fixed bracket 11 includes two parallel fixed plate structures, which are symmetrically distributed along the vertical center axis of the gear ring 4. This design disperses the force on the test bench through the parallel fixed plates, enhancing the overall stability of the bracket. The parallel fixed plate structure can effectively support the test bench and reduce deformation or tilting caused by uneven force. For large ring gear test benches, this structural design is particularly important under high load conditions because it ensures that the test bench can remain stable under various operating conditions, thereby improving the accuracy and repeatability of test results.

[0044] In a specific example, the bearing platform 3 is a flange structure, a threaded through hole is opened on the fixing member 12, and the fixing member 12 is connected to the bearing platform 3 by bolts.

[0045] Specifically, the fixing member 12 is provided with a threaded through-hole, allowing it to be connected to the bearing platform 3 via bolts. This flange structural design not only enhances the secure connection but also facilitates assembly and disassembly. The threaded through-hole provides a convenient means of operation when maintenance or component replacement is required. The flange structure ensures that the test bench maintains a secure connection under high load conditions, reducing the possibility of loosening or displacement during testing, thereby improving test stability and reliability.

[0046] In a specific example, the large bearing 8 gear ring wear test bench has an extension line from the center to both ends facing the horizontal direction, and when observed in the vertical direction, the fixing bracket 11 is provided at the lower end of the wear test bench.

[0047] Specifically, the fixed bracket 11 is positioned at the lower end of the wear test bench. This positioning design provides a stable support base, reducing vibration or displacement caused by top-end operation or load changes. By placing the fixed bracket 11 at the lower end, the test bench's center of gravity is lowered, thereby improving its overall stability. This is particularly important for high-load and long-duration ring gear wear testing, as it ensures the test bench remains stable under various operating conditions and reduces external factors that may interfere with test results.

[0048] In a specific example, when observed along the central axis of the gear ring 4 , the engaging portion 6 is the area of ​​the internal gear 14 containing the gear ring 4 , and the transmission portion 5 is the contact surface of the gear ring 4 away from the engaging portion 6 and with the bearing platform 3 .

[0049] Specifically, viewing along the central axis of the gear ring 4 clearly defines the functional areas of the meshing section 6 and the transmission section 5. The meshing section 6 is the area where the internal teeth 14 contact the gear ring 4, while the transmission section 5 is the surface of the gear ring 4 facing away from the meshing section 6 and in contact with the bearing platform 3. This design ensures that the different areas of the gear ring 4 are functionally assigned during testing, accurately simulating the stresses experienced by the ring gear in actual operation. This clear division of areas allows the test bench to better simulate the wear of the ring gear under actual operating conditions, thereby improving the accuracy and reliability of the test.

[0050] In a specific example, the bearing platform 3 and the gear ring 4 are both made of alloy steel.

[0051] Specifically, both the bearing platform 3 and the gear ring 4 are constructed from alloy steel, a material choice that enhances both wear resistance and strength. Alloy steel exhibits excellent performance under high-load and high-friction conditions, effectively extending the lifespan of the test bench. The use of alloy steel ensures the test bench maintains stable performance during long-term, high-load operation and withstands the intense wear between the gear ring 4 and the bearing platform 3, enhancing both test accuracy and stability.

[0052] In a specific example, a fixing group 13 is provided at the lower end of the fixing bracket 11. The fixing group 13 is composed of multiple fixing plates arranged parallel to each other. One end of the fixing group 13 is fixedly connected to the fixing bracket 11, and the other end is fixed to the bottom surface.

[0053] Specifically, the fixing group 13 at the lower end of the fixed bracket 11 is composed of multiple parallel fixing plates, which increase the stability and support of the bracket. One end of the fixing group 13 is fixedly connected to the fixed bracket 11, and the other end is fixed to the bottom surface. This design distributes the force through the parallel fixing plate structure, reducing the potential displacement or vibration during the test and improving overall stability. The design of the fixing group 13 ensures the stability of the test bench under high-load testing and guarantees the accuracy of the test results.

[0054] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. A large bearing gear ring wear test bench, comprising an external test piece and a motor, wherein the test piece is fixedly connected to the motor, characterized in that: The large bearing gear ring wear test bench includes: A bearing platform and a gear ring, wherein the gear ring is rotatably connected to the bearing platform and is provided with internal teeth. The contact end between the gear ring and the bearing platform is defined as a transmission part, and the contact end between the gear ring and the test piece is defined as an engagement part. The transmission part is transmission-connected to the bearing platform, and one end of the test piece is provided with external teeth, and the engagement part is connected to the external gear; The motor drives the test piece to perform a driving test in a clockwise or counterclockwise direction.

2. The large bearing gear ring wear test bench according to claim 1 is characterized in that: The bearing platform includes a bearing, and a movable groove is provided on the contact surface between the bearing platform and the transmission part. Multiple bearings are arranged in the movable groove, and one end of the bearing abuts the inner wall of the movable groove, and the other end abuts the transmission part. The transmission part is connected to the bearing platform through multiple bearings.

3. The large bearing gear ring wear test bench according to claim 1, characterized in that: The test piece includes a test end and a fixed end. The end where the test piece is connected to the large bearing gear ring wear test bench is defined as the test end, and the end where the test piece is connected to the motor is defined as the fixed end. The test end is engaged with the gear ring, and a flange is provided on the fixed end, which is connected to the motor flange.

4. The large bearing gear ring wear test bench according to claim 1, characterized in that: The large bearing gear ring wear test bench includes a fixed bracket, which is located at one end of the wear test bench and is fixedly connected to the wear test bench.

5. The large bearing gear ring wear test bench according to claim 4, characterized in that: The fixed bracket includes a fixing part, which is located at the connecting end of the fixed bracket and the wear test bench, and is fixedly connected to the bearing bench. The fixing part is a fixed plate structure arranged in parallel. The large bearing gear ring wear test bench is an annular frustum structure, and the fixing parts are symmetrically distributed along the vertical central axis of the gear ring.

6. The large bearing gear ring wear test bench according to claim 1, characterized in that: The bearing platform is a flange structure, a threaded through hole is provided on the fixing member, and the fixing member is connected to the bearing platform with bolts.

7. The large bearing gear ring wear test bench according to claim 1, characterized in that: The large bearing gear ring wear test bench has an extension line from the center to both ends facing the horizontal direction, and when observed in the vertical direction, the fixed bracket is arranged at the lower end of the wear test bench.

8. The large bearing gear ring wear test bench according to claim 1, characterized in that: Observing along the center axis of the gear ring, the engaging portion is the area of ​​the internal gearing containing the gear ring, and the transmission portion is the contact surface of the gear ring away from the engaging portion and with the bearing platform.

9. The large bearing gear ring wear test bench according to claim 1, characterized in that: The bearing platform and the gear ring are both made of alloy steel.

10. The large bearing gear ring wear test bench according to claim 1, characterized in that: A fixing group is provided at the lower end of the fixing bracket. The fixing group is composed of a plurality of fixing plates arranged parallel to each other. One end of the fixing group is fixedly connected to the fixing bracket, and the other end is fixed to the bottom surface.

Images