Bearing testing device

Abstract

The utility model relates to a bearing testing device, which relates to the bearing detection field, and comprises a work bench, a swing mechanism, a driving mechanism and a driven mechanism, the driving mechanism comprises one or more driving wheels and a driving motor, all the driving wheels are rotatably arranged on the work bench, and the driving motor is arranged on the work bench. The driving motor is arranged on one side of the workbench, the driving wheel is in transmission connection with the driving motor, and the swing mechanism is arranged on the workbench; the driven mechanism comprises a driven wheel and a driven shaft, the driven shaft is rotatably arranged on the swing mechanism, a tested bearing is arranged on the inner ring of the driven wheel, and the driven wheel is rotatably arranged on the driven shaft through the tested bearing. According to the utility model, various loads and bearing operation conditions can be simulated, multiple groups of bearings can be tested at the same time, the test efficiency is improved, and the test time of the tested bearing is saved.

Description

Technical Field

[0001] The utility model relates to the field of bearing detection, in particular to a bearing testing device. Background Art

[0002] In modern industrial production, bearings are key mechanical components. Their performance and life play a vital role in the normal operation of various mechanical equipment. With the continuous development of industrial technology, the requirements for bearing life and reliability are becoming increasingly higher.

[0003] Traditional bearing testing equipment has many limitations. For example, some tests are only conducted under simple simulated working conditions and cannot truly reflect the operating conditions of bearings in complex and changing actual working environments.

[0004] In practical applications, bearings often need to withstand multiple forces, such as axial force, radial force, bending moment, etc., and may also be affected by environmental factors such as temperature, humidity, and dust.

[0005] At present, a Chinese invention patent with publication number CN112903291A and publication date July 22, 2022 proposes a bearing swing stiffness detection device and test method, including: a core shaft, one end of which is connected to the bearing to be tested, and the other end is connected to the swing drive mechanism; the inner ring of the bearing to be tested is rigidly connected to the core shaft, and the outer ring of the bearing to be tested is connected and fixed to the fixed base through a connecting member, and the swing drive mechanism includes a joint bearing movably connected to the core shaft, and a bidirectionally loadable linear drive device connected to the joint bearing and equipped with a load sensor; a displacement sensor is installed on one side of the core shaft through a movable measuring rod.

[0006] When in use, the joint bearing and the linear drive device are movably connected to make the core shaft swing under the action of the swing torque, and the swing stiffness is measured by the measuring rod and the displacement sensor.

[0007] Regarding the above-mentioned related technologies, when conducting simulation tests on bearings and applying load to the bearings being tested, due to the torque generated between the spherical bearing and the linear drive device relative to the core shaft, there may be a certain angular deviation in the load applied to the bearings being tested, resulting in a large error between the test results and the actual life. Utility Model Content

[0008] In order to improve the accuracy of test data, the utility model provides a bearing test device.

[0009] The utility model provides a bearing test device, which adopts the following technical solutions:

[0010] A bearing testing device includes a workbench, a swing mechanism, a driving mechanism, and a driven mechanism, wherein the driving mechanism includes a driving wheel and a driving motor, the driving wheel being rotatably disposed on the workbench, the driving motor being disposed on one side of the workbench, the driving wheel being in transmission connection with the driving motor, and the swing mechanism being disposed on the workbench near one end of the driving wheel;

[0011] The driven mechanism includes a driven wheel and a driven shaft. The driven shaft is arranged on the swing mechanism. A measured bearing is arranged on the inner ring of the driven wheel. The driven wheel is rotatably arranged on the driven shaft through the measured bearing.

[0012] By adopting the above technical solution, when the bearing under test needs to be tested, the driving motor drives the driving wheel to rotate, and then swings back and forth through the swinging mechanism. During the swinging process, the driven wheel is brought into contact with the driving wheel through the swinging mechanism. At the moment of contact, the driven wheel is driven by the driving wheel and rotates synchronously. At the same time, the bearing under test is subjected to the impact load generated during the swinging process, so as to simulate the environment in which the bearing under test is subjected to the impact load during use. The simulation can be truly restored, and the bearing is transformed from an idling state to a working condition that receives the impact load, thereby improving the authenticity of the simulated impact environment and the accuracy of the test results. Then, the swinging mechanism rotates in the opposite direction, so that the driven wheel approaches the driving wheel in turn, and then generates an impact again. In this cycle, the impact environment of the bearing under test can be simulated continuously and frequently. By repeatedly impact testing the bearing under test, the impact environment can be quickly simulated through the swinging mechanism, thereby improving the test efficiency and saving the test time of the bearing under test.

[0013] Optionally, the swing mechanism includes a swing frame and a telescopic cylinder, one or more driving wheels are provided, the swing frame is rotatably arranged on the workbench, the driven shaft is arranged on the swing frame, the fixed end of the telescopic cylinder is arranged on the workbench, and the telescopic rod of the telescopic cylinder is rotatably connected to the swing frame.

[0014] By adopting this technical solution, when impact testing is required on the bearing under test, the telescopic cylinder's telescopic function is fully utilized to drive the swing frame to swing back and forth on the workbench, successfully simulating the alternating impact loads on the driven wheel of the bearing under test. This simulation method provides strong support for evaluating the performance of the bearing under test under actual operating conditions and greatly improves the accuracy of the test.

[0015] Optionally, the swing mechanism also includes a base, a support and a push rod, the base is arranged on the workbench, the swing frame is rotatably arranged on the base, the support is arranged at one end of the workbench, the fixed end of the telescopic cylinder is arranged on the support, one end of the push rod is arranged on the telescopic rod of the telescopic cylinder, and the other end of the push rod is hinged to one end of the swing frame.

[0016] By adopting the above technical solution, the diversity and variability of test requirements are fully taken into account. During the actual test process, the telescopic cylinder can be flexibly replaced from the support and the push rod of the corresponding length can be selected according to different test requirements. This design provides great flexibility for testing, allowing the test equipment to adapt to a variety of different test scenarios. By replacing different telescopic cylinders and push rods, the swing force and swing range applied to the driven wheel can be effectively adjusted. By precisely controlling the swing force and swing range, it can be made more in line with actual working conditions, thereby improving the accuracy and reliability of the test. Reasonable swing force and swing range can better simulate the force conditions of the driven wheel in actual work, providing more accurate data for studying and analyzing the performance of the driven wheel.

[0017] Optionally, an adjustment slot is provided on the swing frame, and the driven shaft is in the adjustment slot.

[0018] The above technical solution fully considers the diversity of testing requirements and recognizes that the size of the driven wheel may need to be adjusted according to different test conditions. In this case, by adjusting the height of the driven wheel's rotating shaft within the adjustment slot, the contact between the driven wheel and the driving wheel during the swinging process can be improved. When the height of the driven wheel's rotating shaft is properly adjusted, the driven wheel can more accurately mate with the driving wheel, ensuring a closer and more stable contact between the two. The significance of this adjustment method is that it reduces the possibility of eccentricity between the direction of the applied load and the driving and driven wheels during contact. In actual testing, eccentricity can have a significant negative impact on test results. When the load direction is eccentric, the force between the driven and driving wheels is uneven, affecting the accuracy and reliability of the test. By adjusting the height of the driven wheel's rotating shaft, this eccentricity can be effectively reduced, ensuring a more reasonable and stable swinging load.

[0019] Optionally, the driving mechanism further includes a bearing seat and a driving axle, the bearing seat is arranged on the workbench, the measured bearing is arranged in the bearing seat, and the driving axle is rotatably connected to the bearing seat through the measured bearing.

[0020] By adopting this technical solution, the impact load between the driving and driven wheels can be effectively utilized, applied to the bearing under test on the driven wheel, and simultaneously acted in the opposite direction on the driving wheel, thereby impacting the bearing under test on the driving wheel shaft. This design enables the simultaneous testing of multiple bearings, greatly improving test efficiency.

[0021] Optionally, two drive motors are provided, and one drive motor corresponds to one drive wheel.

[0022] By employing this technical solution, each drive wheel is equipped with an independent drive motor, enabling precise individual control of each drive wheel. This allows the drive wheels to have varying speeds. As the torque switches during the swinging motion of the bearing under test, it can simultaneously experience impacts from drive wheels of varying speeds. This design significantly expands the simulation range of the test, making it more realistic for the complex and changing mechanical conditions found in real-world scenarios.

[0023] At the same time, the two drive wheels can rotate in the same direction at the same time, or in opposite directions at the same time. When rotating in the same direction, after the driven wheel detaches from one drive wheel and contacts the other drive wheel, it will cause the driven wheel to rotate in the opposite direction, realizing the rapid switching of the forward and reverse states of the driven wheel. This design has many beneficial effects. First, the diversified rotation methods can more comprehensively simulate the complex mechanical environment in actual work and improve the authenticity and reliability of the test. Rapidly switching the forward and reverse states of the driven wheel not only increases the accuracy of the simulation, but also improves the test efficiency. It simulates the working state of the driven wheel under different steering conditions in a short time, comprehensively evaluates the performance of the bearing during the forward and reverse switching process, and provides more accurate test data for some application scenarios that require frequent forward and reverse rotation.

[0024] Secondly, for the driven pulley, the simulation is of the alternating impact loads applied to the tested bearing in the driven pulley. This alternating impact load more realistically reflects the stress conditions experienced by the driven pulley in actual operation, helping to proactively identify potential bearing problems under alternating loads, such as fatigue cracks and increased wear, thereby improving product reliability and service life. For the bearing seat, the simulation is of the periodic reverse impact loads applied to the tested bearing in the bearing seat. This simulation accounts for the unique load conditions experienced by the bearing seat in actual operation, helping to assess the structural strength and stability of the bearing seat, providing a reference for its design and optimization, and improving the performance of the entire bearing system.

[0025] Optionally, the driving wheel and / or the driven wheel are provided with bumps and / or grooves.

[0026] By adopting the above technical solution, a bump is set in the contact area between the driving wheel and the driven wheel. When the driving wheel and the driven wheel are in contact, the bump enables direct contact between the two, thereby changing the normal contact state of the driving wheel and the driven wheel. This design can effectively simulate the impact caused by debris remaining on the track or the track deformation during the actual operation of the tested bearing. On the one hand, through the diversified bump design, such as bumps of different shapes, sizes and materials, various types of debris and different degrees of track deformation can be more comprehensively simulated, greatly enhancing the simulation effect of the device on actual working conditions. On the other hand, the bump can be set as an adjustable structure, allowing the parameters of the bump, such as position, height and shape, to be adjusted according to different test requirements, so as to flexibly simulate impacts of different intensities and types, thereby improving the accuracy and reliability of the test results, and providing a more accurate basis for the performance evaluation of the tested bearing in complex working environments.

[0027] The grooves provide a more realistic simulation of actual operating conditions when the driving and driven wheels are in contact. This allows for more accurate simulation of conditions such as weld pitting and track corrosion when driving on track, simulating the impact and vibration to which the bearings are subjected. This results in test results that are closer to actual use, providing a more valuable reference for product design and improvement. These harsh conditions can reveal potential defects in the bearing design and manufacturing process, such as material fatigue and structural deformation. When driving on grooved tracks, bearings are more susceptible to the intrusion of impurities such as dust, mud, and water, placing even higher demands on sealing performance. Through test adjustments, the effectiveness of different sealing solutions can be evaluated, and the optimal seal design can be selected to improve the bearing's protective performance and reduce damage caused by impurity intrusion.

[0028] Optionally, the driving wheel and / or the driven wheel are spliced ​​together by means of clamping blocks and clamping slots.

[0029] By adopting the above technical solution, the connection method of the block and slot makes the installation and removal process of the driving wheel or driven wheel very simple and quick. When installing the bearing under test, there is no need for complex tools and tedious operating procedures, which can greatly save installation time and improve work efficiency. When it is necessary to replace a different type of bearing under test or perform maintenance on the driven wheel or driving wheel, this splicing method can easily disassemble the driven wheel or driving wheel, facilitating related operations. If a part of the driven wheel or driving wheel is damaged or worn, the block and slot splicing method can replace only the damaged part without replacing the entire driven wheel or driving wheel, which can reduce maintenance costs and extend the service life of the driven wheel or driving wheel. According to different testing requirements, blocks and slots of different materials, sizes or shapes can be selected for splicing, thereby achieving customization of the driven wheel or driving wheel. This adaptability enables the driven wheel to meet various test conditions and requirements, improving the accuracy and reliability of the test. Since the driven wheel or driving wheel can be easily disassembled, it is easier to maintain and clean. The driven wheel or driving wheel can be disassembled regularly to inspect, clean and lubricate the internal bearings and other components to ensure their normal operation. For some test environments that are prone to accumulation of dust, oil or other impurities, this splicing method can be more convenient to clean and avoid the impact of impurities on the performance of the bearings and driven wheel or driving wheel.

[0030] Optionally, the driving mechanism, the driven mechanism and the swinging mechanism are each provided in two groups, wherein the driving motors in the first group of driving mechanisms respectively drive one of the driving wheels in the driving mechanisms in the first group and one of the driving wheels in the driving mechanisms in the second group, and the driving motors in the second group of driving mechanisms respectively drive another driving wheel in the driving mechanisms in the second group and another driving wheel in the driving mechanisms in the first group.

[0031] By adopting this technical solution, two drive motors can be used to drive two test devices, each independently, while also enabling synchronous adjustment of the speed and direction of the drive wheels in both test devices. This reduces the cost of the test equipment and saves energy during testing. Compared to traditional multi-motor drive solutions, this design reduces hardware investment and energy consumption, offering significant cost-effectiveness. Furthermore, a single drive motor drives both test devices, ensuring more consistent input test conditions and reducing errors in test results. This uniform testing condition ensures that the bearings tested on different test devices are tested under the same mechanical conditions, improving the comparability and reliability of the test results. Furthermore, the two test devices can be tested simultaneously, increasing testing efficiency and accelerating product development and quality inspection. This design also facilitates maintenance and management of the test devices and drive motors. The two drive motors also provide backup for each other, enhancing the stability of the entire test system.

[0032] Optionally, the driving motors in the first group of driving mechanisms rotate in opposite directions to the driving motors in the second group of driving mechanisms.

[0033] By adopting the above technical solution, the two drive motors rotate in opposite directions, so that the driven wheel is subjected to forces in different rotation directions when contacting the two drive wheels during the reciprocating swing process. Since there is only one drive motor driving the two drive wheels in a device, there will be a directional error when switching the rotation direction. By adopting two sets of drive mechanisms, the switching of the driven wheel contacting the rotation load in opposite directions is made more timely, further improving the simulation accuracy.

[0034] In summary, the present invention has at least one of the following beneficial technical effects:

[0035] 1. By setting up the driving mechanism and the driven mechanism, the bearing to be tested is subjected to the impact environment. Through repeated impact tests on the bearing to be tested, the impact environment can be quickly simulated through the swing mechanism, which improves the test efficiency and saves the test time of the bearing to be tested.

[0036] 2. By setting up a swing mechanism, achieving a reasonable swing force and swing range can better simulate the force conditions of the driven wheel in actual work, and provide more accurate data for studying and analyzing the performance of the driven wheel.

[0037] 3. By setting up two drive motors, the two drive wheels can rotate in the same direction or in opposite directions at the same time. Rapidly switching the forward and reverse states of the driven wheel not only increases the accuracy of the simulation, but also improves the test efficiency. It can simulate the working state of the driven wheel under different steering conditions in a short time, comprehensively evaluate the performance of the bearing during the forward and reverse switching process, and provide more accurate test data for some application scenarios that require frequent forward and reverse rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0039] Figure 2 yes Figure 1 Schematic diagram of the overall structure from another perspective;

[0040] Figure 3 It is a partial structural diagram of the swing mechanism and the driven mechanism of the utility model;

[0041] Figure 4 It is a schematic diagram of a top view of the overall mechanism of the utility model;

[0042] Figure 5 This is a schematic diagram of the utility model with two drive motors;

[0043] Figure 6 This is a schematic diagram of a driven wheel or a driving wheel having grooves therein;

[0044] Figure 7 It is a schematic diagram of providing a bump on a driven wheel or a driving wheel;

[0045] Figure 8 It is a schematic diagram of the splicing of driven wheels or driving wheels;

[0046] Figure 9 This is a schematic diagram of two test devices sharing two drive motors.

[0047] Explanation of the accompanying reference numerals: 100, workbench; 200, driving mechanism; 210, driving motor; 220, driving wheel; 230, bearing seat; 240, driving wheel shaft; 300, driven mechanism; 310, driven wheel; 320, driven shaft; 400, swing mechanism; 410, swing frame; 420, telescopic cylinder; 430, base; 440, support; 450, push rod; 460, adjusting groove; 500, bump; 600, groove; 700, bearing to be tested. DETAILED DESCRIPTION

[0048] The following combination Figures 1 to 9 The utility model is described in further detail.

[0049] The embodiment of the utility model discloses a bearing test device. Figures 1-9A bearing testing device mainly includes a workbench 100, a swing mechanism 400, a driving mechanism 200 and a driven mechanism 300. The driving mechanism 200 includes a driving wheel 220 and a driving motor 210. The driving wheel 220 is provided with one, and all driving wheels 220 are rotatably arranged on the workbench 100. The driving motor 210 is arranged on one side of the workbench 100. The driving wheel 220 is transmission-connected to the driving motor 210. The swing mechanism 400 is arranged on the workbench 100.

[0050] The driven mechanism 300 includes a driven wheel 310 and a driven shaft 320 . The driven shaft 320 is rotatably mounted on the swing mechanism 400 . A tested bearing 700 is mounted on the inner ring of the driven wheel 310 . The driven wheel 310 is rotatably mounted on the driven shaft 320 via the tested bearing 700 .

[0051] The swing mechanism 400 includes a swing frame 410 and a telescopic cylinder 420. The swing frame 410 is rotatably set on the workbench 100 near the side of the driving wheel 220. The driven shaft 320 is set on the swing frame 410. The fixed end of the telescopic cylinder 420 is set on the workbench 100. The telescopic rod of the telescopic cylinder 420 is rotatably connected to the swing frame 410.

[0052] When the bearing 700 under test needs to be tested, the driving motor 210 drives the driving wheel 220 to rotate, and then swings back and forth through the swing mechanism 400, making full use of the telescopic function of the telescopic cylinder 420 to drive the swing frame 410 to swing back and forth on the workbench 100, thereby successfully realizing the simulation of the alternating impact load of the bearing 700 under test on the driven wheel 310. During the swinging process, the driven wheel 310 is brought into contact with the driving wheel 220 through the swinging mechanism 400. At the moment of contact, the driven wheel 310 is driven by the driving wheel 220 and rotates synchronously. At the same time, the tested bearing 700 is subjected to the impact load generated during the swinging process, so as to simulate the environment in which the tested bearing 700 is subjected to the impact load during use. The simulation can be truly restored, and the bearing is transformed from an idling state to a working environment that receives the impact load, thereby improving the authenticity of the simulated impact environment and the accuracy of the test results. Then, the swinging mechanism 400 rotates in the opposite direction, so that the driven wheel 310 approaches the other driving wheel 220, and then generates an impact again. In this cycle, the impact environment of the tested bearing 700 can be simulated continuously and frequently. By repeatedly impacting the tested bearing 700, the impact environment can be quickly simulated through the swinging mechanism 400, thereby improving the test efficiency and saving the test time of the tested bearing 700.

[0053] Reference Figure 1 In some embodiments, two driving wheels 220 are provided, all driving wheels 220 are rotatably provided on the workbench 100 , and the swing frame 410 is rotatably provided on the workbench 100 between the two driving wheels 220 .

[0054] During the test, the swing frame 410 can swing back and forth between the two driving wheels 220, so that the tested bearing 700 can quickly switch the impact load, thereby improving the authenticity of the simulated restoration working conditions.

[0055] Reference Figure 1 In some embodiments, the swing mechanism 400 further includes a base 430, a support 440 and a push rod 450. The base 430 is set on the workbench 100, the swing frame 410 is rotatably set on the base 430, the support 440 is set at one end of the workbench 100, the fixed end of the telescopic cylinder 420 is set on the support 440, one end of the push rod 450 is set on the telescopic rod of the telescopic cylinder 420, and the other end of the push rod 450 is hinged to one end of the swing frame 410.

[0056] During the actual test process, the telescopic cylinder 420 can be flexibly replaced from the support 440 according to different test requirements, and the push rod 450 of the corresponding length can be selected. This design provides great flexibility for testing, allowing the test equipment to adapt to a variety of different test scenarios. By replacing different telescopic cylinders 420 and push rods 450, the swing force and swing range applied to the driven wheel 310 can be effectively adjusted. By precisely controlling the swing force and swing range, it can be made more in line with actual working conditions, thereby improving the accuracy and reliability of the test. Reasonable swing force and swing range can better simulate the force conditions of the driven wheel 310 in actual work, and provide more accurate data for studying and analyzing the performance of the driven wheel 310.

[0057] Reference Figure 1 In some embodiments, an adjustment slot 460 is defined on the swing frame 410 , and the driven shaft 320 is located in the adjustment slot 460 .

[0058] By adjusting the position height of the driven wheel 310 shaft in the adjustment slot 460, the contact state between the driven wheel 310 and the driving wheel 220 during the swinging process can be improved. When the position height of the driven wheel 310 shaft is reasonably adjusted, the driven wheel 310 can cooperate with the driving wheel 220 more accurately, making the contact between the two closer and more stable. The significance of this adjustment method is that it reduces the possibility of eccentricity between the direction of the force load and the driving wheel 220 and the driven wheel 310 when contact occurs. In actual tests, the eccentricity problem will have a great negative impact on the test results. When the direction of the force load is eccentric, it will cause uneven force between the driven wheel 310 and the driving wheel 220, thereby affecting the accuracy and reliability of the test. By adjusting the position height of the driven wheel 310 shaft, the occurrence of this eccentricity can be effectively reduced, making the applied swinging load more reasonable and stable.

[0059] Reference Figure 1In some embodiments, the drive mechanism 200 further includes a bearing seat 230 and a drive shaft 240. The bearing seat 230 is disposed on the workbench 100, and a bearing under test 700 is disposed within the bearing seat 230. The drive shaft 240 is rotatably connected to the bearing seat 230 via the bearing under test 700. This design effectively utilizes the impact load between the driving wheel 220 and the driven wheel 310, applying it to the bearing under test 700 on the driven wheel 310 while simultaneously acting in the opposite direction on the driving wheel 220, thereby impacting the bearing under test 700 on the driving shaft 240. This design enables the simultaneous testing of multiple bearings, greatly improving test efficiency.

[0060] Reference Figure 5 In some embodiments, two drive motors 210 are provided, and one drive motor 210 corresponds to one drive wheel 220 .

[0061] Each drive wheel 220 is equipped with an independent drive motor 210, enabling precise individual control of each drive wheel 220. This allows the drive wheels 220 to have varying rotational speeds. When the tested bearing 700 switches torque during its swing, it can simultaneously experience impacts from drive wheels 220 operating at different speeds. This design expands the simulation range of the test, making it more realistic and realistic for the complex and changing mechanical conditions found in actual operating scenarios.

[0062] At the same time, the two drive wheels 220 can rotate in the same direction at the same time, or rotate in opposite directions at the same time. When rotating in the same direction, after the driven wheel 310 detaches from one drive wheel 220 and contacts the other drive wheel 220, the driven wheel 310 will rotate in the opposite direction, thereby realizing rapid switching of the forward and reverse states of the driven wheel 310. This design has many beneficial effects. First, the diversified rotation methods can more comprehensively simulate the complex mechanical environment in actual work and improve the authenticity and reliability of the test. Rapidly switching the forward and reverse states of the driven wheel 310 not only increases the accuracy of the simulation, but also improves the test efficiency. It simulates the working state of the driven wheel 310 under different steering conditions in a short time, comprehensively evaluates the performance of the bearing during the forward and reverse switching process, and provides more accurate test data for some application scenarios that require frequent forward and reverse rotation.

[0063] Secondly, for the driven wheel 310, what is simulated is the alternating impact load on the tested bearing 700 in the driven wheel 310. This alternating impact load can more realistically reflect the stress conditions of the driven wheel 310 in actual work, and helps to discover in advance the problems that may occur when the bearing is subjected to alternating loads, such as fatigue cracks, increased wear, etc., thereby improving the reliability and service life of the product. For the bearing seat 230, what is simulated is the periodic reverse impact load on the tested bearing 700 in the bearing seat 230. This simulation can take into account the special load conditions that the bearing seat 230 is subjected to in actual work, help to evaluate the structural strength and stability of the bearing seat 230, provide a reference for the design and optimization of the bearing seat 230, and improve the performance of the entire bearing system.

[0064] Reference Figure 7 In some embodiments, a bump 500 is provided on the driving wheel 220 and / or the driven wheel 310 .

[0065] A bump 500 is provided in the contact area between the driving wheel 220 and the driven wheel 310. When the driving wheel 220 and the driven wheel 310 come into contact, the bump 500 creates direct contact between them, thereby altering the normal contact state between the driving wheel 220 and the driven wheel 310. This design effectively simulates the impact of debris remaining on the track or track deformation during actual operation of the tested bearing 700. On the one hand, the diverse designs of the bump 500, such as bumps 500 of different shapes, sizes, and materials, allow for more comprehensive simulation of various types of debris and varying degrees of track deformation, greatly enhancing the device's simulation of actual operating conditions. On the other hand, the bump 500 can be configured as an adjustable structure, allowing parameters such as its position, height, and shape to be adjusted according to different testing requirements. This allows for flexible simulation of impacts of varying intensities and types, thereby improving the accuracy and reliability of the test results and providing a more precise basis for evaluating the performance of the tested bearing 700 in complex operating environments.

[0066] Reference Figure 6 In some embodiments, a groove 600 is provided on the driving wheel 220 and / or the driven wheel 310 .

[0067] The presence of groove 600 allows for a more realistic simulation of actual operating conditions when the driving wheel 220 and the driven wheel 310 are in contact. This allows for more accurate simulation of conditions encountered during track travel, such as weld pitting and track corrosion, and simulates the impact and vibration to which the bearings are subjected. This results in test results that are closer to actual use, providing a valuable reference for product design and improvement. These harsh conditions can reveal potential defects in the bearing design and manufacturing process, such as material fatigue and structural deformation. When traveling on tracks with groove 600, bearings are more susceptible to the intrusion of impurities such as dust, mud, and water, placing higher demands on sealing performance. Through experimental adjustments, the effectiveness of different sealing solutions can be evaluated, and the optimal seal design can be selected to improve the bearing's protective performance and reduce damage caused by impurity intrusion.

[0068] In some embodiments, the driving wheel 220 and / or the driven wheel 310 are provided with both a groove 600 and a bump 500. By providing the bump 500 and the groove 600 on the driving wheel 220 or the driven wheel 310, respectively, and making the bump 500 and the groove 600 work together, when the driven wheel 310 and the driving wheel 220 come into contact and impact, various complex road conditions can be simulated, making the test environment more comprehensive and complex, and the test more accurate.

[0069] Reference Figure 8 In some embodiments, the driving wheel 220 and / or the driven wheel 310 are spliced ​​together by means of blocks and slots.

[0070] The connection method of the block and the slot makes the installation and removal process of the driving wheel 220 or the driven wheel 310 very simple and quick. When installing the bearing 700 to be tested, there is no need to use complex tools and tedious operating procedures, which can greatly save installation time and improve work efficiency; when it is necessary to replace a different type of bearing 700 to be tested or to perform maintenance on the driven wheel 310 or the driving wheel 220, this splicing method can easily disassemble the driven wheel 310 or the driving wheel 220, making it convenient to perform related operations; if a part of the driven wheel 310 or the driving wheel 220 is damaged or worn, the block and the slot can be used to replace only the damaged part without replacing the damaged part. The entire driven wheel 310 or driving wheel 220 can reduce maintenance costs and extend the service life of the driven wheel 310 or driving wheel 220. According to different testing requirements, blocks and slots of different materials, sizes or shapes can be selected for splicing, thereby achieving customization of the driven wheel 310 or driving wheel 220. This adaptability enables the driven wheel 310 to meet a variety of different testing conditions and requirements, improving the accuracy and reliability of the test. Because the driven wheel 310 or driving wheel 220 can be easily disassembled, maintenance and cleaning are easier. The driven wheel 310 or driving wheel 220 can be disassembled regularly to inspect, clean and lubricate the internal tested bearing 700 and other components to ensure their normal operation. For some test environments that are prone to the accumulation of dust, oil or other impurities, this splicing method makes it easier to clean and prevent impurities from affecting the performance of the tested bearing 700 and the driven wheel 310 or driving wheel 220.

[0071] Reference Figure 9 In some embodiments, the driving mechanism 200, the driven mechanism 300 and the swing mechanism 400 are each provided in two groups, wherein the driving motor 210 in the first group of driving mechanisms 200 respectively drives the driving wheel 220 in the driving mechanism 200 in the first group and the driving wheel 220 in the driving mechanism 200 in the second group, and the driving motor 210 in the second group of driving mechanisms 200 respectively drives another driving wheel 220 in the second group of driving mechanisms 200 and another driving wheel 220 in the first group of driving mechanisms 200.

[0072] It is possible to use two drive motors 210 to drive two test devices respectively, and at the same time, it is possible to synchronously adjust the speed and direction of the drive wheels 220 in the two test devices. First, the cost of the test equipment is reduced, saving consumption during testing. Compared with the traditional multi-motor drive solution, this design reduces the investment in hardware equipment and energy consumption, and has significant cost-effectiveness. At the same time, one drive motor 210 drives two test devices, making the input test conditions more unified and reducing the error in the test results. The unified test conditions ensure that the tested bearings 700 on different test devices are tested under the same mechanical environment, improving the comparability and reliability of the test results. In addition, the two test devices can be tested simultaneously, improving test efficiency and accelerating the progress of product development and quality inspection. In terms of maintenance and management, this design is also more convenient, making it easier to maintain and service the test devices and drive motors 210. The two drive motors 210 can also back up each other, enhancing the stability of the entire test system.

[0073] Reference Figure 9 In some embodiments, the drive motors 210 in the first drive mechanism 200 rotate in opposite directions to the drive motors 210 in the second drive mechanism 200. The two drive motors 210 rotate in opposite directions, causing the driven wheel 310 to be subjected to forces in different rotational directions when in contact with the two drive wheels 220 during its reciprocating swing. Since only one drive motor 210 drives both drive wheels 220 in a single device, there may be directional errors when switching rotational directions. By using two drive mechanisms 200, the switching of the driven wheel 310 in contact with the rotational load in opposite directions is more timely, further improving the accuracy of the simulation.

[0074] For the bearing test device in any of the above embodiments, the implementation principle may include the following steps:

[0075] Preparation stage: Provide a bearing test device, which includes two sets of test mechanisms in the above embodiments; Drive wheel 220 rotates: Start the drive motor 210 to drive the drive wheel 220 to rotate; Simulate impact: Drive the swing frame 410 to swing back and forth on the workbench 100 through the telescopic cylinder 420, so that the driven wheel 310 contacts the drive wheel 220, and the driven wheel 310 is driven by the drive wheel 220 to rotate synchronously, so that the tested bearing 700 is subjected to the impact load generated during the swinging process, simulating the working environment of the tested bearing 700 from the idling state to the impact load; Reverse impact: The swing mechanism 400 rotates in the opposite direction, so that the driven wheel 310 approaches the other drive wheel 220, generating an impact again, and the cycle continues. The ring continuously and frequently simulates the impact environment of the tested bearing 700; adjusts the swing force and range: according to different test requirements, the telescopic cylinder 420 is replaced from the support 440, and the push rod 450 of the corresponding length is selected to adjust the swing force and swing range applied to the driven wheel 310; adjusts the contact state: according to the test requirements, the position height of the driven shaft 320 in the adjustment groove 460 is adjusted to improve the contact state between the driven wheel 310 and the driving wheel 220, and reduce the possibility of eccentricity of the load; multi-bearing test: using the impact load between the driving wheel 220 and the driven wheel 310, the tested bearing 700 on the driven wheel 310 and the tested bearing in the bearing seat 230 on the driving wheel shaft 240 are tested at the same time. 700 for impact testing; Different speed impact: Control the drive motor 210 to make the drive wheel 220 have different speeds. When the tested bearing 700 switches the torque during the swing process, it is subjected to the impact of the drive wheels 220 with different speeds at the same time; Switching rotation direction: Control the two drive wheels 220 to rotate in the same direction or in opposite directions at the same time. When rotating in the same direction, the driven wheel 310 is separated from one drive wheel 220 and contacts the other drive wheel 220 to rotate in the opposite direction, so as to achieve rapid switching of the forward and reverse rotation states of the driven wheel 310; Simulating special working conditions: By setting bumps 500 on the drive wheel 220 and / or the driven wheel 310, the impact caused by residual debris on the track or track deformation is simulated; Simulating track defects: by setting grooves 600 on the driving wheel 220 and / or the driven wheel 310, the impact and vibration that the bearings would withstand when there are welds, track corrosion pits, etc. on the track are simulated; Customized wheel structure: the driving wheel 220 and / or the driven wheel 310 are spliced ​​together by means of blocks and slots to achieve customization according to test requirements; Dual-device testing: two driving motors 210 are used to drive the driving wheels 220 in two sets of test mechanisms respectively, and at the same time, the speed and direction of the driving wheels 220 in the two test devices are synchronously adjusted to perform dual-device testing; Wear detection: the detection speed is determined according to the requirements of different types of bearing tests. When the specified speed is reached, the tested bearing is disassembled to determine the degree of wear of the tested bearing.

[0076] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bearing testing device, characterized in that: The invention comprises a workbench (100), a swing mechanism (400), a driving mechanism (200) and a driven mechanism (300); the driving mechanism (200) comprises a driving wheel (220) and a driving motor (210); the driving wheel (220) is rotatably arranged on the workbench (100); the driving motor (210) is arranged on one side of the workbench (100); the driving wheel (220) is transmission-connected to the driving motor (210); and the swing mechanism (400) is arranged on the workbench (100) near one end of the driving wheel (220); The driven mechanism (300) comprises a driven wheel (310) and a driven shaft (320); the driven shaft (320) is arranged on the swing mechanism (400); a measured bearing (700) is arranged on the inner ring of the driven wheel (310); and the driven wheel (310) is rotatably arranged on the driven shaft (320) via the measured bearing (700).

2. A bearing testing device according to claim 1, characterized in that: The swing mechanism (400) includes a swing frame (410) and a telescopic cylinder (420), one or more driving wheels (220) are provided, the swing frame (410) is rotatably arranged on the workbench (100), the driven shaft (320) is provided on the swing frame (410), the fixed end of the telescopic cylinder (420) is provided on the workbench (100), and the telescopic rod of the telescopic cylinder (420) is rotatably connected to the swing frame (410).

3. A bearing testing device according to claim 2, characterized in that: The swing mechanism (400) further includes a base (430), a support (440) and a push rod (450), wherein the base (430) is arranged on the workbench (100), the swing frame (410) is rotatably arranged on the base (430), the support (440) is arranged at one end of the workbench (100), the fixed end of the telescopic cylinder (420) is arranged on the support (440), one end of the push rod (450) is arranged on the telescopic rod of the telescopic cylinder (420), and the other end of the push rod (450) is hinged to one end of the swing frame (410).

4. A bearing testing device according to claim 2, characterized in that: An adjustment slot (460) is provided on the swing frame (410), and the driven shaft (320) is located in the adjustment slot (460).

5. A bearing testing device according to any one of claims 2 to 4, characterized in that: The driving mechanism (200) further comprises a bearing seat (230) and a driving wheel shaft (240); the bearing seat (230) is arranged on the workbench (100); the measured bearing (700) is arranged in the bearing seat (230); and the driving wheel shaft (240) is rotatably connected to the bearing seat (230) via the measured bearing (700).

6. A bearing testing device according to claim 5, characterized in that: Two driving motors (210) are provided, and one driving motor (210) corresponds to one driving wheel (220).

7. A bearing testing device according to any one of claims 1 to 4, characterized in that: The driving wheel (220) and / or the driven wheel (310) are provided with a protrusion (500) and / or a groove (600).

8. A bearing testing device according to any one of claims 1 to 4, characterized in that: The driving wheel (220) and / or the driven wheel (310) are spliced ​​together by means of clamping blocks and clamping slots.

9. A bearing testing device according to claim 5, characterized in that: The driving mechanism (200), the driven mechanism (300) and the swing mechanism (400) are each provided in two groups, wherein the driving motor (210) in the first group of the driving mechanisms (200) respectively drives one driving wheel (220) in the first group of the driving mechanisms (200) and one driving wheel (220) in the second group of the driving mechanisms (200), and the driving motor (210) in the second group of the driving mechanisms (200) respectively drives another driving wheel (220) in the second group of the driving mechanisms (200) and another driving wheel (220) in the first group of the driving mechanisms (200).

10. A bearing testing device according to claim 9, characterized in that: The driving motor (210) in the first group of driving mechanisms (200) and the driving motor (210) in the second group of driving mechanisms (200) rotate in opposite directions.

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