Bearing flexibility detection device
By combining the clamping plate with the positioning groove and using the digital acquisition of the pulse detector, the problems of low accuracy and low efficiency in existing bearing testing have been solved, achieving high-precision and automated bearing testing, adapting to bearings of different specifications, and reducing testing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGZHOU DONGFENG BEARING
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-12
AI Technical Summary
Existing bearing flexibility testing relies on manual judgment, which is inaccurate and highly subjective. Automated testing devices suffer from unstable bearing positioning, easy deviation, distorted data acquisition, and lack of automated unloading mechanisms. The testing process is cumbersome and inefficient, and cannot meet the needs of high-precision batch testing.
The bearing outer ring is quickly clamped and positioned by using a clamping plate and positioning groove. Combined with a pulse detector and processor for digital data acquisition, it integrates clamping and positioning, rotation detection, automatic feeding, temporary storage and transition and roller unloading into an integrated structure to achieve fully automated detection.
It improves the accuracy and reliability of testing, significantly increases the efficiency of batch testing, adapts to bearings of different specifications, reduces the cost of testing equipment for enterprises, and protects the appearance and precision of bearings.
Smart Images
Figure CN122016311A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bearing testing technology, and more specifically, to a bearing flexibility testing device. Background Technology
[0002] As a core component of mechanical transmission systems, bearings directly determine the operating accuracy, friction loss, temperature rise, and overall service life of equipment through their rotational flexibility. They are a key indicator for bearing factory testing.
[0003] Currently, bearing flexibility testing largely relies on manual rotation of the bearing, subjectively judging the smoothness of rotation, the presence of jamming or abnormal noise by touch and hearing. This method suffers from low accuracy, strong subjectivity, and a high rate of missed detections and false judgments. Existing automated testing devices generally suffer from unstable bearing positioning, easy radial displacement, separation of the rotation drive and the testing structure leading to data acquisition distortion, and a lack of automated unloading and transfer mechanisms. The testing process is cumbersome and inefficient, failing to meet the production needs of high-precision and automated testing of batch bearings. Summary of the Invention
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing flexibility testing device, which aims to solve the problems mentioned in the background art.
[0005] The present invention provides the following technical solution: a bearing flexibility testing device, comprising a base, wherein a testing component is disposed on the base; The detection component includes two connecting frames disposed opposite each other on the base. Each connecting frame is provided with a first drive motor at one end. The output end of the first drive motor is connected to a clamping plate. The first drive motor is used to drive the clamping plate to rotate so as to clamp and position the outer ring of the bearing. The clamping disc has a positioning groove on the side facing the bearing. A turntable for supporting the bearing is provided between the positioning grooves of the two clamping discs. A second drive motor is provided at the bottom of the base. The output end of the second drive motor is connected to the turntable for transmission and is used to drive the turntable to rotate so as to drive the inner ring of the bearing to rotate. After the second drive motor is de-energized, the inner ring of the bearing can continue to rotate by inertia.
[0006] Furthermore, the outer side of the connecting frame is provided with a support cover, which is fixedly installed on the base. An electric slide rail is provided on the top of the support cover, and a pulse detector is slidably connected on the electric slide rail. A protective cover is provided on the outer side of the pulse detector, and the detection end of the pulse detector is located directly above the turntable. An offset opening is provided on the support cover for the detection end of the pulse detector to pass through. A processor is provided on the side of the electric slide rail away from the pulse detector, and an electrical control box is integrated on the processor. Furthermore, a support base is provided on one side of the connecting frame. The support base is fixedly installed on the base. An electric push rod is provided on the support base. The output end of the electric push rod is connected to a pulling plate. When the first drive motor drives the clamping plate to rotate, the bearing that has been inspected is pushed to one side of the pulling plate through the inclined surface of the positioning groove. The electric push rod is used to drive the pulling plate to move so as to export the bearing that has been inspected. A guide rod is threadedly connected to the pulling plate. The guide rod is inserted into the top of the support base and slidably connected to the support base. A feeding frame is provided at the bottom of the base. Several support rollers are rotatably connected to the feeding frame. The bearing that has been inspected can be transferred to the feeding frame and conveyed by the support rollers. A temporary storage roller is provided on the base. The temporary storage roller is located on one side of the turntable and is used to receive and temporarily store the bearing that has been inspected and transferred by the rotation of the clamping plate.
[0007] The technical effects and advantages of this invention are as follows: By using a clamping plate and a positioning groove that are positioned relative to each other, the outer ring of the bearing can be quickly clamped and positioned, effectively avoiding bearing misalignment during the inspection process and ensuring the consistency of the reference for rotational inspection. A pulse detector and a processor are used to digitally collect and analyze the rotational speed, duration and uniformity of the inner ring of the bearing, replacing manual subjective judgment and greatly improving the accuracy and reliability of the inspection. The device integrates clamping and positioning, rotation detection, automatic feeding, temporary storage and transition, and roller unloading into a single structure. It can complete the entire process of inspection without manual intervention, significantly improving the efficiency of batch inspection. The positioning groove adopts a sloping structure, which can be adapted to the clamping and pushing of bearings of different specifications, expanding the application range of the device and reducing the investment cost of enterprise inspection equipment. Furthermore, the drive and detection core components are protected by support covers and protective covers to reduce dust and impact damage. The guide rod limits and guides the material pulling plate to ensure long-term stable operation of the device. The transitional conveying design of the temporary storage roller and support roller prevents the bearing from falling and hitting directly when it is unloaded, effectively protecting the appearance and precision of the bearing. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.
[0009] Figure 1 This is a front view of the overall structure of the present invention.
[0010] Figure 2 This is a side view of the overall structure of the present invention.
[0011] Figure 3 This is a schematic diagram of the detection component of the present invention.
[0012] Figure 4 This is a schematic diagram of the connecting frame, drive motor, deflector, positioning groove, and turntable of the present invention.
[0013] Figure 5 This is a schematic diagram of the support base, electric push rod, material pulling plate, and guide rod of the present invention.
[0014] Figure 6 This is a schematic diagram of the electric slide rail, pulse detector, processor, and electrical control box of the present invention. The attached figures are labeled as follows: 1. Base; 2. Connecting frame; 3. First drive motor; 4. Clamping plate; 5. Positioning groove; 6. Turntable; 7. Second drive motor; 8. Support cover; 9. Electric slide rail; 10. Pulse detector; 11. Processor; 12. Electrical control box; 13. Support base; 14. Electric push rod; 15. Pulling plate; 16. Guide rod; 17. Protective cover; 18. Unloading frame; 19. Support roller; 20. Temporary storage roller. Detailed Implementation
[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Example 1
[0016] This embodiment provides a bearing flexibility testing device to solve the technical problems of low efficiency, inaccurate positioning, and inaccurate test data in existing bearing flexibility testing methods. Figures 1-6 As shown, the device in this embodiment includes a base 1, which serves as the supporting foundation for the entire device. It is made of rigid metal sheet to ensure structural stability.
[0017] The base 1 is equipped with a detection component, such as... Figure 3 , Figure 4 As shown, the detection component includes two connecting frames 2 arranged opposite each other on the base 1. The two connecting frames 2 are symmetrically distributed to provide mounting support for the drive component. A first drive motor 3 is fixedly installed at one end of each connecting frame 2. The output end of the first drive motor 3 is fixedly connected to the clamping plate 4. After the first drive motor 3 is powered on, it can drive the clamping plate 4 to perform circumferential rotation. Through the rotation of the clamping plate 4, the outer ring of the bearing is quickly clamped and positioned, avoiding bearing displacement during the detection process.
[0018] The clamping disc 4 has a positioning groove 5 on the side facing the bearing. The positioning groove 5 is a sloping groove structure, which can not only accommodate the outer ring of bearings of different specifications, but also push the bearing out through the sloping surface after the test. The positioning groove 5 is a conical sloping surface structure. When the first drive motor 3 drives the clamping disc 4 to rotate relative to each other, the sloping surface contacts the outer ring of the bearing and generates a radial component force, so that the two clamping discs 4 clamp and position the outer ring of the bearing. Moreover, after the test is completed, the first drive motor 3 drives the clamping disc 4 to rotate in the opposite direction, loosening the clamping on the outer ring of the bearing. Under the action of gravity, the bearing slides down the sloping surface of the positioning groove 5 to the side of the pull plate 15. Then, the electric push rod 14 drives the pull plate 15 to push the bearing out. A turntable 6 is set between the positioning grooves 5 of the two clamping discs 4. The turntable 6 is set horizontally to directly support the bearing to be tested. A second drive motor 7 is fixedly installed at the bottom of the base 1. The output end of the second drive motor 7 passes through the base 1 and is connected to the center of the turntable 6. When the second drive motor 7 is started, it drives the turntable 6 to rotate at high speed, thereby driving the inner ring of the bearing to rotate synchronously. After the second drive motor 7 is de-energized, the inner ring of the bearing can continue to rotate by its own inertia, providing a rotation basis for flexibility testing. Furthermore, identification marks such as reflective surfaces or grooves for triggering pulse signals can be provided on the turntable 6 and the inner ring of the bearing. The pulse detector 10 indirectly obtains the rotational speed data of the inner ring of the bearing by detecting the rotational frequency of the turntable 6. The upper surface of the turntable 6 contacts the lower end face of the inner ring of the bearing, and the rotation is transmitted by static friction. After the second drive motor 7 is de-energized, the turntable 6 rotates with the inertia of the inner ring of the bearing. The pulse detector 10 indirectly judges the rotational flexibility of the inner ring of the bearing by detecting the rotational speed of the turntable 6.
[0019] like Figure 2 , Figure 6 As shown, a support cover 8 is installed on the outer side of the connecting frame 2. The support cover 8 is fixed to the base 1 by bolts, providing protection and support for the internal connecting frame 2 and the first drive motor 3. An electric slide rail 9 is fixedly installed on the top of the support cover 8. The electric slide rail 9 extends along the length of the support cover 8, allowing for position adjustment of the detection components. A pulse detector 10 is slidably connected to the electric slide rail 9. The pulse detector 10 is used to detect the rotation speed, duration, and uniformity of the inertial rotation of the bearing inner ring, accurately determining the bearing's flexibility. A protective cover 17 is installed on the outer side of the pulse detector 10 to prevent dust and impact damage to the detection element. The detection end of the pulse detector 10 is vertically positioned directly above the turntable 6. An offset opening is provided on the support cover 8 to provide passage space for the detection end of the pulse detector 10, ensuring unobstructed detection signals. Example 2
[0020] Based on Example 1, this embodiment, for example Figure 6As shown, a processor 11 is fixedly installed on the side of the electric slide rail 9 away from the pulse detector 10. The processor 11 is electrically connected to the pulse detector 10 and is used to receive, analyze, and store detection data. An electrical control box 12 is integrated on the processor 11. The electrical control box 12 has a built-in control circuit to uniformly regulate the start-stop and operation parameters of the first drive motor 3, the second drive motor 7, the electric slide rail 9, and the electric push rod 14.
[0021] like Figure 5 As shown, a support base 13 is provided on one side of the connecting frame 2. The support base 13 is vertically fixed on the base 1. An electric push rod 14 is fixedly installed on the top of the support base 13. The output end of the electric push rod 14 is horizontally connected to the pulling plate 15. After the inspection is completed, the first drive motor 3 drives the clamping plate 4 to rotate, and pushes the bearing to one side of the pulling plate 15 through the inclined surface of the positioning groove 5. After the electric push rod 14 is started, it drives the pulling plate 15 to move horizontally, and guides the qualified or unqualified bearings out in an oriented manner, so as to realize automatic unloading. A guide rod 16 is threadedly connected to the pulling plate 15. The guide rod 16 is inserted into the top of the support base 13 and slidably connected to the support base 13 to ensure that the pulling plate 15 does not deviate during the displacement process and runs smoothly.
[0022] like Figure 1 As shown, a feeding frame 18 is provided at the bottom of the base 1. Several evenly distributed support rollers 19 are rotatably connected to the feeding frame 18. After the inspected bearings are transferred to the feeding frame 18, they can be quickly conveyed by the rolling of the support rollers 19, improving the feeding efficiency. A temporary storage roller 20 is also provided on the base 1. The temporary storage roller 20 is located on one side of the turntable 6. When the clamping plate 4 rotates to transfer the inspected bearings, the temporary storage roller 20 can temporarily support the bearings to prevent them from falling and being damaged.
[0023] The specific working principle is as follows: Loading and positioning: Place the bearing to be tested on the turntable 6, and the first drive motor 3 drives the clamping plate 4 to rotate, clamping the outer ring of the bearing through the positioning groove 5 to complete the positioning; Rotation detection: The second drive motor 7 drives the turntable 6 to rotate the inner ring of the bearing at high speed. Then the power is cut off, and the inner ring of the bearing rotates by inertia. The pulse detector 10 detects the rotation data in real time and transmits it to the processor 11 for analysis to determine whether the bearing has problems such as jamming, excessive resistance, uneven rotation, etc. Automatic feeding: After the inspection is completed, the first drive motor 3 drives the clamping plate 4 to reverse and pushes the bearing to one side of the pulling plate 15 through the inclined surface of the positioning groove 5. The electric push rod 14 drives the pulling plate 15 to export the bearing. After passing through the temporary storage roller 20, it is transported to the designated area by the support roller 19 of the feeding frame 18.
[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A bearing flexibility testing device, comprising a base (1), characterized in that: The base (1) is provided with a detection component; The detection component includes two connecting frames (2) arranged opposite to each other on the base (1). Each connecting frame (2) is provided with a first drive motor (3) at one end. The output end of the first drive motor (3) is connected to a clamping plate (4). The first drive motor (3) is used to drive the clamping plate (4) to rotate so as to clamp and position the outer ring of the bearing. The clamping disc (4) has a positioning groove (5) on the side facing the bearing. A turntable (6) for supporting the bearing is provided between the positioning grooves (5) of the two clamping discs (4). A second drive motor (7) is provided at the bottom of the base (1). The output end of the second drive motor (7) is connected to the turntable (6) for driving the turntable (6) to rotate so as to drive the inner ring of the bearing to rotate. After the second drive motor (7) is de-energized, the inner ring of the bearing can continue to rotate by inertia.
2. The bearing flexibility testing device according to claim 1, characterized in that: The outer side of the connecting frame (2) is provided with a support cover (8), which is fixedly installed on the base (1). The top of the support cover (8) is provided with an electric slide rail (9).
3. The bearing flexibility testing device according to claim 2, characterized in that: A pulse detector (10) is slidably connected on the electric slide rail (9). A protective cover (17) is provided on the outer side of the pulse detector (10). The detection end of the pulse detector (10) is located directly above the turntable (6). An offset opening is provided on the support cover (8) for the detection end of the pulse detector (10) to pass through.
4. The bearing flexibility testing device according to claim 3, characterized in that: The electric slide rail (9) is provided with a processor (11) on the side away from the pulse detector (10), and an electrical control box (12) is integrated on the processor (11).
5. The bearing flexibility testing device according to claim 1, characterized in that: A support base (13) is provided on one side of the connecting frame (2). The support base (13) is fixedly installed on the base (1). An electric push rod (14) is provided on the support base (13). The output end of the electric push rod (14) is connected to a material pulling plate (15).
6. The bearing flexibility testing device according to claim 5, characterized in that: The pull plate (15) is threaded with a guide rod (16), which is inserted into the top of the support base (13) and slidably connected to the support base (13).
7. The bearing flexibility testing device according to claim 1, characterized in that: The bottom of the base (1) is provided with a feeding frame (18), and several support rollers (19) are rotatably connected to the feeding frame (18). The bearings that have been tested can be transferred to the feeding frame (18) and conveyed by the support rollers (19).
8. The bearing flexibility testing device according to claim 1, characterized in that: The base (1) is provided with a temporary storage roller (20), which is located on one side of the turntable (6) and is used to receive and temporarily store the bearings of the rotating transport of the clamping disc (4).
9. The bearing flexibility testing device according to claim 5, characterized in that: When the first drive motor (3) drives the clamping plate (4) to rotate, the bearing that has been tested is pushed to the side of the pull plate (15) through the inclined surface of the positioning groove (5). The electric push rod (14) is used to drive the pull plate (15) to move so as to export the bearing that has been tested.