A bearing assembly vibration detection device and assembly process

Abstract

The application relates to the field of bearing production and processing, and particularly relates to a bearing assembly vibration detection device and an assembly process, which comprises a fixing frame, a clamping assembly is arranged on the vertical plate of the fixing frame, the clamping assembly is used for clamping and fixing a bearing, a driving assembly is arranged on the horizontal plate of the fixing frame, and the driving assembly is used for driving the bearing to rotate; the clamping assembly comprises a frame, a disc body is fixedly connected to the end of the frame, a rotatable cylinder body is arranged between the disc body and the fixing frame, one end of the cylinder body penetrates through the disc body, the other end of the cylinder body penetrates through the vertical plate, a support frame is arranged in one end of the cylinder body, and a plurality of guide holes are arranged in the circumferential array of the support frame; the clamping assembly is simple in structure, easy to operate, more stable in operation compared with a complex structure design, and capable of reducing the failure rate; the moving stroke amount of the top plate can be adapted to the clamping and fixing of bearings of various models, has high flexibility, does not need to disassemble and assemble a clamp, can quickly check a large quantity of bearings, and improves the detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of bearing manufacturing and processing, specifically to a vibration detection device and assembly process for bearing assembly. Background Technology

[0002] Bearings are critical components in rotating machinery systems, and their operating condition directly affects the performance and reliability of the entire equipment or device. Therefore, after bearing production and assembly, they need to be inspected. Specifically, bearing vibration testing can be performed. During the testing process, the bearing needs to be stably and accurately clamped and fixed to ensure the accuracy and reliability of the test results. However, existing bearing clamps, due to their structural design, have significant shortcomings in adaptability, limiting them to the inspection of only one type of bearing.

[0003] Currently, bearing clamping devices generally suffer from the following technical defects: First, the adaptability of the clamping base is low, failing to meet the clamping and fixing requirements of bearings of different sizes and specifications. Because the size range of bearings is quite wide, with significant differences in outer diameter from micro-bearings to large bearings, existing clamping devices often require multiple sizes of clamps to meet the testing needs of bearings of different sizes. This not only increases equipment costs but also reduces testing efficiency. Furthermore, the clamps need to be disassembled and reinstalled each time, resulting in low bearing testing efficiency.

[0004] Secondly, existing bearing clamping mechanisms or equipment have overly complex structures, typically containing numerous mechanical transmission components, hydraulic elements, or pneumatic devices. This complex structural design leads to various problems during actual application: firstly, severe mechanical wear and frequent use result in decreased clamping accuracy; secondly, a high failure rate, with complex transmission systems prone to jamming, loosening, and other malfunctions; and thirdly, difficult maintenance, requiring regular maintenance and debugging by professional technicians, which increases operating costs.

[0005] Furthermore, the existing clamping devices have low reliability and service life. Due to unreasonable structural design, the clamping force is unevenly distributed, which can easily cause damage or deformation to the bearing surface and affect the accuracy of the test results. At the same time, some clamping devices will experience problems such as clamping force attenuation and positioning accuracy reduction after long-term use, requiring frequent replacement of parts, which seriously affects the continuity and stability of bearing vibration testing.

[0006] Therefore, a vibration detection device and assembly process for bearing assembly are proposed to address the above problems. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the bearing assembly vibration detection device of the present invention includes an L-shaped fixing frame, a clamping assembly is provided on the vertical plate of the fixing frame for clamping and fixing the bearing, and a driving assembly is provided on the horizontal plate of the fixing frame for driving the bearing to rotate. The clamping assembly includes a frame mounted on a vertical plate, with a disc fixed to one end of the frame. A rotatable cylinder is located between the disc and the fixed frame. One end of the cylinder passes through the disc, and the other end passes through the vertical plate. A support frame is located inside one end of the cylinder. Multiple guide holes are arranged in a circular array on the support frame. A top plate is located in each guide hole. A rotating shaft is located at the center of the support frame. An arc-shaped protrusion is located on the outer circumference of the rotating shaft, and each protrusion is opposite to the inner end of the top plate. One side of each top plate is connected to a drive assembly.

[0009] Preferably, the drive assembly includes an L-shaped slide plate, the horizontal part of which is slidably connected to a vertical plate, a motor is fixedly connected to the vertical part of which the output end of the motor passes through the vertical part and is fixedly connected to a turntable, and multiple push rods are arranged in a circumferential array at the eccentric position of the turntable, with each push rod pressing against one side wall of the top plate.

[0010] Preferably, the disk body has multiple sliding holes arranged in a circumferential array, each sliding hole is equipped with a slider, the back of the slider is connected to a screw, the end of the screw is equipped with a gear, the gear meshes with the end face gear ring rotatably connected to the outer ring of the disk body, the surface of the slider is equipped with a fixing plate, the fixing plate is equipped with a sleeve, and a vibration sensor is installed inside the sleeve.

[0011] Preferably, a cylinder is fixedly connected to the vertical part of the slide plate, and a ring is fixedly connected to the output end of the cylinder. Multiple second vibration sensors are provided on the ring, and the data collected by the second vibration sensors are attached to the end face of the bearing.

[0012] Preferably, each of the top plates has multiple locking strips on one side wall; the push rod is embedded in the gap between two adjacent locking strips.

[0013] Preferably, the second vibration sensor is provided with a plate, and the plate is vertically fixed to the acquisition end face of the second vibration sensor.

[0014] Preferably, a groove is provided in the middle of the protrusion and the top plate, and a tension spring is provided in the groove. One end of the tension spring is fixed to the protrusion, and the other end of the tension spring is fixed to the top plate.

[0015] Preferably, each slider has a recess on its surface, and a magnet is provided in the recess, with the magnet surface flush with the slider surface.

[0016] A bearing assembly process, comprising the aforementioned vibration detection device for bearing assembly, the bearing assembly process including the following steps: S1: Pre-treatment cleaning: Use an ultrasonic cleaner to remove oil, iron filings, dust and other impurities from the surface of the inner and outer rings and steel balls, so as to avoid affecting the bearing rotation accuracy and service life after assembly. After cleaning, rinse the surface with high pressure spray to remove residual cleaning agent, and then blow dry with clean compressed air. S2: Precision inspection of inner and outer diameters. Components that meet the required dimensions are selected through precise inspection. A combination of laser diameter gauge and dial indicator is used for inspection, providing a precise matching basis for subsequent assembly and ensuring consistent bearing clearance. S3: Sorting and inner and outer ring assembly. Based on the test and grading results, select inner and outer rings with matching sizes for assembly to ensure that the initial clearance of the bearing is reasonable after assembly. Through automated sorting equipment, the inner and outer rings are sorted according to the corresponding grades based on the inner diameter size grading ledger. S4: Add steel balls as filler. Add steel balls of the same specifications according to the design quantity to ensure uniform force when the bearing rotates. S5: Uniform steel balls: The steel balls are evenly distributed in the raceway by a centrifugal homogenizer to eliminate the phenomenon of steel ball aggregation and ensure the smooth rotation of the bearing. Finally, a visual inspection device is used to ensure that the spacing between the steel balls is consistent. S6: Secondary cleaning removes tiny iron filings, dust and other impurities generated during the assembly and ball filling process to prevent impurities from wearing the raceway and steel balls. After cleaning, the bearing is dried with clean compressed air. During drying, the bearing needs to be rotated to remove residual moisture and cleaning agent. S7: Bearing rotation flexibility and oil gap test. Place the bearing on the flexibility test table, manually rotate the inner ring slightly, and detect the rotation resistance through the sensor. At the same time, observe whether the rotation is smooth, whether there is any jamming or abnormal noise, and test whether the bearing rotates smoothly and whether the oil gap meets the design requirements. Screen out products with abnormal rotation and excessive oil gap. S8: Drying treatment: A hot air circulating oven is used. The bearings are placed on a special material tray and evenly distributed to completely remove moisture and remove residual moisture inside the bearings. This prevents moisture from causing the grease to deteriorate and the bearings to rust after subsequent grease injection. S9: Double-sided grease injection: Select the appropriate grease according to the bearing application scenario, inject grease evenly and quantitatively, inject a quantitative amount of grease into both sides of the bearing to form a lubricating film, reduce rolling friction, prevent rust, and extend service life; S10: Sealing ring gland, for installing the sealing ring to prevent grease leakage and external impurities and moisture from entering the bearing; S11: Grease even distribution. By rotating, the grease is further evenly distributed inside the bearing, optimizing the lubrication distribution and ensuring that a complete lubrication film is formed on the raceway and steel ball surface, avoiding localized grease deficiency. S12: Bearing vibration detection: The vibration value of the bearing during rotation is detected by a bearing assembly vibration detection device to determine the bearing assembly quality and screen out qualified products.

[0017] Preferably, during the drying process in S8, the drying temperature is strictly controlled at 80-100℃, the drying time is 20-30 minutes, and the process is checked regularly to prevent the bearing from deforming due to excessive temperature.

[0018] The advantages of this invention are: 1. In this invention, the vibration detection device has a simple clamping assembly that is easy to operate. Compared with complex structural designs, it is more stable in operation, reduces the failure rate, and the top plate's travel range can be adapted to clamp and fix various types of bearings, providing high flexibility. It eliminates the need to disassemble and assemble the clamps, enabling rapid inspection of large batches of bearings and improving detection efficiency.

[0019] 2. In this invention, the driving component and the clamping component are designed separately, which simplifies the clamping component. At the same time, the driving component is also simplified. The design structure of both is simplified, and compared with the complex structural design, the operation is more stable and the service life is longer. Attached Figure Description

[0020] Figure 1 This is a perspective view of the vibration detection device and the base in this invention. Figure 2 This is a perspective view of the vibration detection device in this invention; Figure 3 This is a top view of the vibration detection device in this invention; Figure 4 This is a front view of the vibration detection device in this invention; Figure 5 This is a side view of the vibration detection device in this invention; Figure 6 This is a perspective view of the driving component in this invention; Figure 7 This is a perspective view of the clamping component in this invention; Figure 8 This is a front view of the clamping component in this invention; Figure 9 This is a perspective view of the cylindrical body in this invention; Figure 10 This is a perspective view of the interaction between the push rod and the top plate in this invention; Figure 11 This is a perspective view of the fit between the top plate and the support frame in this invention; Figure 12 This is a perspective view of the fit between the rotating shaft and the top plate in this invention; Figure 13 This is a perspective view of the support frame in this invention; Figure 14 This is a perspective view of the push rod in this invention; Figure 15This is a flowchart of the bearing assembly process in this invention.

[0021] In the diagram: 101. Bearing; 1. Fixing frame; 2. Frame; 3. Disc; 4. Cylinder; 5. Support frame; 6. Guide hole; 7. Top plate; 8. Rotating shaft; 9. Protrusion; 10. Servo motor; 11. Lead screw No. 1; 12. Base; 13. Slide plate; 14. Turntable; 15. Push rod; 16. Screw; 17. Sliding hole; 18. Slider; 19. Lead screw No. 2; 20. Gear; 21. End face gear ring; 22. Fixing plate; 23. Sleeve; 24. Vibration sensor No. 1; 25. Adjusting motor; 26. Cylinder; 27. Ring body; 28. Vibration sensor No. 2; 29. ​​Locking bar; 30. Flat plate; 31. Groove; 32. Tension spring; 33. Magnet; 34. Display and control panel; 35. Drive gear. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Reference Figure 1 - Figure 5 ,as well as Figure 7 - Figure 13 A vibration detection device for bearing assembly includes an L-shaped fixing frame 1. A clamping assembly is provided on the vertical plate of the fixing frame 1 for clamping and fixing a bearing 101. A driving assembly is provided on the horizontal plate of the fixing frame 1 for driving the bearing 101 to rotate. The clamping assembly includes a frame 2 set on the vertical plate. A disc 3 is fixed to the end of the frame 2. A rotatable cylinder 4 is provided between the disc 3 and the fixing frame 1. One end of the cylinder 4 passes through the disc 3, and the other end of the cylinder 4 passes through the vertical plate. A support frame 5 is provided inside one end of the cylinder 4. Multiple guide holes 6 are arranged in a circular array on the support frame 5. A top plate 7 is provided in each guide hole 6. A rotating shaft 8 is provided at the center of the support frame 5. An arc-shaped protrusion 9 is provided on the outer ring of the rotating shaft 8. The protrusion 9 is opposite to the inner end of the top plate 7. One side of each top plate 7 is connected to the driving assembly. In this embodiment of the invention, an actuator for moving the frame 2 is also provided on the back of the vertical plate. The actuator can be composed of a servo motor 10 and a lead screw 11. The servo motor 10 is fixed to the vertical plate, and the output end of the servo motor 10 is fixed to the lead screw 11. The lead screw 11 passes through the vertical plate and is threaded to the frame 2. Driving the lead screw 11 to rotate forward or backward can make the frame 2 move closer to or away from the vertical plate. The frame 2 is fixed to the disc 3. The disc 3 moves synchronously with the frame 2. Adjusting the distance between the disc 3 and one end of the cylinder 4 allows the top plate 7 to effectively press against the inner ring of the bearing 101 after the bearing 101 is loaded. A reduction motor for driving the rotating shaft 8 to rotate is provided inside the cylinder 4. The reduction motor drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the protrusion 9 to rotate. The protrusion 9 then presses the top plate 7 outward, and the end of the top plate 7 presses against the inner ring surface of the bearing 101, fixing the bearing 101 in place. The clamping assembly is used to clamp and fix bearings 101 of different models, while the driving assembly is used to drive the rotation of bearings 101. The clamping and driving rotation actions are designed separately, which simplifies the clamping assembly and avoids the use of complex mechanical transmission parts, hydraulic components or pneumatic devices. The vibration detection device also includes a base 12, which houses a control module. The top of the base 12 can also be used to place a vibration sensor. The probe of the vibration sensor rests against the outer ring of the bearing 101 to detect the vibration of the bearing 101 and converts the received pressure into an acceptable electrical signal, which is then uploaded to the control module. The control module displays the data on a display control panel on one side of the base 12, allowing on-site operators to observe the specific vibration of the bearing 101. Specifically, when the bearing 101 experiences vibration deviation, the probe of the vibration sensor will vibrate accordingly. The probe of the vibration sensor will transmit the pressure received to the piezoelectric sensor through its internal rigid spring. The piezoelectric sensor is located at the tail of the vibration sensor and converts the pressure signal into an electrical signal that can be received and displayed. The vibration detection device works as follows: First, the bearing 101 is loaded onto one end of the cylinder 4. Then, the geared motor is driven, and multiple top plates 7 move outward synchronously and press against the inside of the bearing 101 to fix the bearing 101. Next, the vibration sensor is installed so that the probe of the vibration sensor presses against the outer ring of the bearing 101. Then, the drive assembly is installed, and the drive assembly drives the bearing 101 to rotate. During the rotation, the vibration sensor detects the state of the bearing 101 in real time. The vibration detection device features a simple and easy-to-operate clamping assembly. Compared to more complex designs, it offers greater stability and a lower failure rate. Furthermore, the travel range of the top plate 7 is adaptable to clamping and fixing various types of bearings 101, providing high flexibility. It eliminates the need to disassemble the clamps, enabling rapid inspection of large batches of bearings 101 and improving testing efficiency.

[0024] Reference Figure 1 - Figure 6 ,as well as Figure 10 The drive assembly includes an L-shaped slide plate 13, the horizontal part of which is slidably connected to a vertical plate. A motor is fixedly connected to the vertical part of the slide plate 13. The output end of the motor passes through the vertical part and is fixedly connected to a turntable 14. Multiple push rods 15 are arranged in a circular array at an eccentric position on the turntable 14. Each push rod 15 pushes against one side wall of the top plate 7. A screw 16 is provided on the horizontal plate. The screw 16 is threadedly connected to the horizontal part of the slide plate 13. The screw 16 is driven to rotate by an external motor. Driving the screw 16 to rotate forward or backward will cause the slide plate 13 to move closer to or from the cylinder 4. After the bearing 101 is loaded, the slide plate 13 is driven to move closer to the cylinder 4. The end of the push rod 15 creates a gap between the inner ring of the bearing 101 and the outer ring of the cylinder 4. Each push rod 15 is located on one side of the top plate 7. Then, the motor is driven. The motor drives multiple push rods 15 to rotate synchronously through the turntable 14. Multiple push rods 15 simultaneously push against the cylinder 4. The top plate 7 is pushed to one side and rotated. At the same time, the top plate 7 drives the inner ring of the bearing 101 to rotate, thus realizing the rotation of the bearing 101. The vibration sensor detects the operating status of the bearing 101. After the detection is completed, the motor is stopped and the slide plate 13 is pushed back away from the cylinder 4. The push rod 15 also disengages from the top plate 7 accordingly. The drive component and the clamping component are designed separately, which simplifies the clamping component. At the same time, it is also a simplified design for the drive component. The design structure of both is simplified. Compared with the complex structural design, the operation is more stable and the service life is longer.

[0025] Reference Figure 2 - Figure 8 The disk body 3 has multiple sliding holes 17 arranged in a circular array. Each sliding hole 17 is equipped with a slider 18. The back of the slider 18 is connected to a second lead screw 19. The end of the second lead screw 19 is equipped with a gear 20. The gear 20 meshes with the end face gear ring 21 rotatably connected to the outer ring of the disk body 3. The surface of the slider 18 is equipped with a fixing plate 22. The fixing plate 22 is equipped with a sleeve 23. The sleeve 23 is equipped with a first vibration sensor 24. A regulating motor 25 driving the gear 20 is installed at the top of the frame 2. The output end of the regulating motor 25 is fixedly connected to the driving gear 35, which meshes with the gear ring on the outer ring of the end face gear ring 21. The inner ring of the gear ring is fixedly connected to the outer ring of the end face gear ring 21, and the end face gear ring 21 meshes with the gear 20. The regulating motor 25 drives the end face gear ring 21 to rotate, and the end face gear ring 21 synchronously drives multiple second lead screws 19 to rotate. The second lead screws 19 then drive the sliders 18 to move. The multiple sliders 18 move synchronously and can synchronously bring multiple first vibration sensors 24 against the outer ring of the bearing 101. The synchronous detection of multiple first vibration sensors 24 makes the detection results of the bearing 101 more accurate. Furthermore, it is more representative, and multiple vibration sensors 24 move according to the different models of bearings 101, which provides high flexibility. Moreover, the design of the vibration sensor 24 allows the probe of the vibration sensor 24 to perpendicularly contact the outer ring surface of the bearing 101, which is also a specific means to ensure the accuracy of the detection results. If the probe of the vibration sensor 24 fails to perpendicularly contact the outer ring surface of the bearing 101, the outer ring of the bearing 101 will vibrate and deviate. When the vibration sensor 24 is squeezed, there is a possibility of lateral deviation. That is, the vibration deviation of the outer ring of the bearing 101 cannot be fully converted into the movement stroke of the probe of the vibration sensor 24.

[0026] Reference Figure 5 and Figure 6 A cylinder 26 is fixedly connected to the vertical part of the slide plate 13, and a ring 27 is fixedly connected to the output end of the cylinder 26. Multiple second vibration sensors 28 are provided on the ring 27, and the data collection of the second vibration sensors 28 is attached to the end face of the bearing 101. The cylinder 26 pushes the ring 27, which in turn drives multiple second vibration sensors 28 to move, so that the probe of the second vibration sensor 28 contacts the end face of the bearing 101. When the bearing 101 rotates, the second vibration sensor 28 is used to detect the axial vibration of the bearing 101. The bearing 101 is detected from more angles, making the detection results more representative.

[0027] Reference Figure 10 and Figure 11 Each of the top plates 7 has multiple locking strips 29 on one side wall; the push rod 15 is embedded in the gap between two adjacent locking strips 29; First, push rod 15 can smoothly push cylinder 4 to rotate, cylinder 4 drives bearing 101 to rotate, and push rod 15 is embedded in the gap between two adjacent clamping strips 29. After the extension stroke of top plate 7 is determined, push rod 15 restricts the radial movement of each top plate 7 and stabilizes the top plate 7. Thus, the top plate 7 can maintain the initial squeezing effect on the inner ring of bearing 101 and stabilize the clamping effect between the clamping assembly and bearing 101. Even if the rotating shaft 8 that drives the top plate 7 to move outward rotates on its own, the top plate 7 can still stably clamp the bearing 101.

[0028] Reference Figure 6 The second vibration sensor 28 is provided with a plate 30, and the plate 30 is vertically fixed to the acquisition end face of the second vibration sensor 28. The plate 30 is set to increase the contact area between the probe of the second vibration sensor 28 and the bearing 101. Considering that there are recessed or protruding characters on the sealing ring of the bearing 101, which will directly affect the travel of the probe of the second vibration sensor 28, a plate 30 is set at the end of the probe of the second vibration sensor 28 to increase the contact area with the end face of the bearing 101, so as to transmit the vibration of the bearing 101 to the second vibration sensor 28 in a real and effective manner.

[0029] Reference Figure 12 A groove 31 is provided in the middle of the protrusion 9 and the top plate 7. A tension spring 32 is provided in the groove 31. One end of the tension spring 32 is fixed to the protrusion 9, and the other end of the tension spring 32 is fixed to the top plate 7. A tension spring 32 is provided to pull the top plate 7 so that the top plate 7 can stably abut against the protrusion 9. When the protrusion 9 no longer pushes the top plate 7 outward, the top plate 7 is pulled by the tension spring 32 and moves towards the rotating shaft 8. When the next bearing 101 is loaded, the top plate 7 can smoothly pass through to the inner ring of the bearing 101, while the end of the non-top plate 7 abuts against the end face of the bearing 101, hindering the loading of the bearing 101.

[0030] Reference Figure 8 Each slider 18 has a recessed portion on its surface, and a magnet 33 is provided in the recessed portion. The surface of the magnet 33 is flush with the surface of the slider 18. When the bearing 101 is loaded onto the disc 3, the magnet 33 can pre-attract the bearing 101. At this time, the operator's hand can be removed from the bearing 101. Then, the clamping assembly is driven, and the top plate 7 clamps the bearing 101. This design avoids accidental contact between the operator's hand and the top plate 7, thus improving safety.

[0031] Reference Figure 15 A bearing assembly process, comprising the aforementioned vibration detection device for bearing assembly, wherein the bearing assembly process includes the following steps: S1: Pre-treatment cleaning: Use an ultrasonic cleaner to remove oil, iron filings, dust and other impurities from the surface of the inner and outer rings and steel balls, so as to avoid affecting the rotational accuracy and service life of bearing 101 after assembly. After cleaning, rinse the surface with high pressure spray to remove residual cleaning agent, and then blow dry with clean compressed air. S2: Precision inspection of inner and outer diameters. Through precise inspection, qualified parts are selected. A combination of laser diameter gauge and dial indicator is used for inspection to provide a precise matching basis for subsequent assembly and ensure the consistency of bearing 101 clearance. S3: Sorting and inner and outer ring assembly. Based on the test and grading results, select inner and outer rings with matching sizes for assembly to ensure that the initial clearance of bearing 101 is reasonable after assembly. Through automated sorting equipment, the inner and outer rings are sorted according to the corresponding grades based on the inner diameter size grading ledger. S4: Add steel balls as filler. Add steel balls of the same specifications according to the design quantity to ensure that the bearing 101 is subjected to uniform force when rotating. S5: Uniform steel balls: The steel balls are evenly distributed in the raceway by a centrifugal homogenizer to eliminate the phenomenon of steel ball aggregation and ensure the smooth rotation of bearing 101. Then, a visual inspection device is used to ensure that the spacing between the steel balls is consistent. S6: Secondary cleaning removes tiny iron filings, dust and other impurities generated during the assembly and ball filling process to prevent impurities from wearing the raceway and steel balls. After cleaning, the balls are dried with clean compressed air. When drying, the bearing 101 needs to be rotated to remove residual moisture and cleaning agent. S7: Detection of the rotational flexibility and oil gap of bearing 101. Place bearing 101 on the flexibility test table, manually rotate the inner ring slightly, detect the rotational resistance through the sensor, and observe whether the rotation is smooth, whether there is any jamming or abnormal noise. Detect whether the bearing 101 rotates smoothly and whether the oil gap meets the design requirements. Screen out products with abnormal rotation and excessive oil gap. S8: Drying treatment: A hot air circulating oven is used. The bearing 101 is placed on a special material tray and evenly distributed to completely remove moisture and remove residual moisture inside the bearing 101 to prevent moisture from causing the grease to deteriorate and the bearing 101 to rust after subsequent grease injection. S9: Double-sided grease injection: Select the appropriate grease according to the application scenario of bearing 101, inject grease evenly and quantitatively, inject a quantitative amount of grease into both sides of bearing 101 to form a lubricating film, reduce rolling friction, prevent rust, and extend service life; S10: Sealing ring cover, for installing the sealing ring to prevent grease leakage and external impurities and moisture from entering the bearing 101; S11: Grease even distribution. By rotating, the grease is further evenly distributed inside the bearing 101, optimizing the lubrication distribution and ensuring that a complete lubrication film is formed on the raceway and steel ball surface, avoiding local grease deficiency. S12: Vibration detection of bearing 101: The vibration value of bearing 101 when rotating is detected by a vibration detection device for bearing assembly, the assembly quality of bearing 101 is judged, and qualified products are selected.

[0032] During the drying process in S8, the drying temperature is strictly controlled at 80-100℃, and the drying time is 20-30 minutes. Regular checks are also conducted during the drying process to prevent the bearing 101 from deforming due to excessive temperature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration detection device for bearing assembly, characterized in that: It includes an L-shaped fixing frame, with a clamping assembly on the vertical plate of the fixing frame for clamping and fixing the bearing, and a driving assembly on the horizontal plate of the fixing frame for driving the bearing to rotate. The clamping assembly includes a frame mounted on a vertical plate, with a disc fixed to one end of the frame. A rotatable cylinder is located between the disc and the fixing frame. One end of the cylinder passes through the disc, and the other end passes through the vertical plate. A support frame is located inside one end of the cylinder. Multiple guide holes are arranged in a circular array on the support frame. A top plate is located in each guide hole. A rotating shaft is located at the center of the support frame. An arc-shaped protrusion is located on the outer circumference of the rotating shaft, and each protrusion is opposite to the inner end of the top plate. One side of each top plate is connected to a drive assembly. The drive assembly includes an L-shaped slide plate, the horizontal part of which is slidably connected to a vertical plate. A motor is fixedly connected to the vertical part of the slide plate, the output end of which passes through the vertical part and is fixedly connected to a turntable. Multiple push rods are arranged in a circumferential array at the eccentric position of the turntable, and each push rod pushes against one side wall of the top plate. The disk body has multiple sliding holes arranged in a circumferential array. Each sliding hole contains a slider. The back of the slider is connected to a screw. The end of the screw is provided with a gear. The gear meshes with the end face gear ring rotatably connected to the outer ring of the disk body. The surface of the slider is provided with a fixing plate. The fixing plate is provided with a sleeve. The sleeve contains a vibration sensor. The top of the frame is equipped with an adjustment motor that drives the gear to rotate. The output end of the adjustment motor is fixed to the drive gear, which meshes with the gear ring on the outer ring of the end face gear ring. The inner ring of the gear ring is fixed to the outer ring of the end face gear ring, and the end face gear ring meshes with the gear. The adjustment motor drives the end face gear ring to rotate, and the end face gear ring synchronously drives multiple No. 2 lead screws to rotate. The No. 2 lead screws drive the sliders to move. The multiple sliders move synchronously and can synchronously press multiple No. 1 vibration sensors against the outer ring of the bearing. A cylinder is fixedly connected to the vertical part of the slide plate, and a ring is fixedly connected to the output end of the cylinder. Multiple second vibration sensors are provided on the ring, and the data collected by the second vibration sensors are attached to the end face of the bearing. The second vibration sensor is equipped with a plate, which is vertically fixed to the acquisition end face of the second vibration sensor.

2. The vibration detection device for bearing assembly according to claim 1, characterized in that: Each of the top plates has multiple locking strips on one side wall; the push rod is embedded in the gap between two adjacent locking strips.

3. The vibration detection device for bearing assembly according to claim 1, characterized in that: A groove is provided in the middle of the protrusion and the top plate. A tension spring is provided in the groove. One end of the tension spring is fixed to the protrusion and the other end of the tension spring is fixed to the top plate.

4. The vibration detection device for bearing assembly according to claim 1, characterized in that: Each slider has a recessed portion on its surface, and a magnet is provided in the recessed portion, with the magnet surface flush with the slider surface.

5. A bearing assembly process, comprising any one of the vibration detection devices for bearing assembly according to claims 1-4, characterized in that: The bearing assembly process includes the following steps: S1: Pre-treatment cleaning: Use an ultrasonic cleaner to remove oil, iron filings, and dust from the inner and outer rings and the surface of the steel balls to avoid affecting the bearing's rotational accuracy and service life after assembly. After cleaning, rinse the surface with high-pressure spray to remove residual cleaning agent, and then blow dry with clean compressed air. S2: Precision inspection of inner and outer diameters. Components that meet the required dimensions are selected through precise inspection. A combination of laser diameter gauge and dial indicator is used for inspection, providing a precise matching basis for subsequent assembly and ensuring consistent bearing clearance. S3: Sorting and inner and outer ring assembly. Based on the test and grading results, select inner and outer rings with matching sizes for assembly to ensure that the initial clearance of the bearing is reasonable after assembly. Through automated sorting equipment, the inner and outer rings are sorted according to the corresponding grades based on the inner diameter size grading ledger. S4: Add steel balls as filler. Add steel balls of the same specifications according to the design quantity to ensure uniform force when the bearing rotates. S5: Uniform steel balls: The steel balls are evenly distributed in the raceway by a centrifugal homogenizer to eliminate the phenomenon of steel ball aggregation and ensure the smooth rotation of the bearing. Finally, a visual inspection device is used to ensure that the spacing between the steel balls is consistent. S6: Secondary cleaning removes tiny iron filings and dust generated during the assembly and ball filling process, preventing impurities from wearing down the raceway and steel balls. After cleaning, the bearing is dried with clean compressed air. During drying, the bearing must be rotated to remove residual moisture and cleaning agent. S7: Bearing rotation flexibility and oil gap test. Place the bearing on the flexibility test table, manually rotate the inner ring slightly, and detect the rotation resistance through the sensor. At the same time, observe whether the rotation is smooth, whether there is any jamming or abnormal noise, and test whether the bearing rotates smoothly and whether the oil gap meets the design requirements. Screen out products with abnormal rotation and excessive oil gap. S8: Drying treatment: A hot air circulating oven is used. The bearings are placed on a tray and evenly distributed to completely remove moisture and remove residual moisture inside the bearings. This prevents moisture from causing the grease to deteriorate and the bearings to rust after subsequent grease injection. S9: Double-sided grease injection: Select the appropriate grease according to the bearing application scenario, inject grease evenly and quantitatively, inject a quantitative amount of grease into both sides of the bearing to form a lubricating film, reduce rolling friction, prevent rust, and extend service life; S10: Sealing ring gland, for installing the sealing ring to prevent grease leakage and external impurities and moisture from entering the bearing; S11: Grease even distribution. By rotating, the grease is further evenly distributed inside the bearing, optimizing the lubrication distribution and ensuring that a complete lubrication film is formed on the raceway and steel ball surface, avoiding localized grease deficiency. S12: Bearing vibration detection: The vibration value of the bearing during rotation is detected by a bearing assembly vibration detection device to determine the bearing assembly quality and screen out qualified products.

6. The bearing assembly process according to claim 5, characterized in that: During the drying process in S8, the drying temperature is strictly controlled at 80-100℃, and the drying time is 20-30 minutes. Regular checks are also conducted during the drying process to prevent the bearing from deforming due to excessive temperature.

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