Multi-aspect detection device for rolling bearing
By integrating drive and detection devices, axial clutch devices, and automatic loading and unloading devices, the problems of low accuracy and low efficiency in rolling bearing measurement have been solved, achieving high-precision and high-efficiency friction torque measurement and automated detection, and reducing equipment failure rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI RIFEI BEARING
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Existing rolling bearing measurement processes suffer from low accuracy, low efficiency, and complex measurement methods. Furthermore, excessive power sources lead to increased equipment failure rates and detection errors.
The system employs an integrated drive and detection device, an axial clutch device, and an automatic loading and unloading device. It drives the inner ring of the rolling bearing to rotate through a high-pressure jet nozzle, utilizes an air bearing to create a frictionless environment, and combines a speed sensor and a calculation method to calculate the friction torque. It uses the same power source for feeding and unloading, simplifying the system structure.
It improves the accuracy and efficiency of rolling bearing friction torque measurement, reduces the number of power sources, lowers the equipment failure rate, and ensures the stability and automation of the testing process.
Smart Images
Figure CN224231269U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling bearing testing technology, and in particular to a multi-faceted testing device for rolling bearings. Background Technology
[0002] Rolling bearings are key support components in mechanical equipment, offering superior dynamic performance, ease of maintenance, low cost, and high support stiffness. However, the frictional torque of rolling bearings is a critical factor contributing to energy loss, thermal failure, vibration, noise, and low reliability. Rotational flexibility is a crucial indicator for ensuring their factory pass rate. Rolling bearings are increasingly being developed towards higher speeds, lower friction, and higher reliability.
[0003] Existing methods for measuring the friction torque and rotational flexibility of rolling bearings suffer from low accuracy, low efficiency, and complexity. Low-precision measurements fail to accurately reflect the actual performance of the bearing, potentially masking design or manufacturing defects and leading to product malfunctions during use. Furthermore, complex measurement methods require significant manpower and time, and may result in repeated testing or rework due to measurement errors.
[0004] To address the aforementioned issues of low measurement accuracy, low efficiency, and complex measurement methods, a drive and detection device, an axial clutch device, and an automatic loading and unloading device are employed. The drive and detection device primarily drives the rotation of the bearing under test and facilitates the free deceleration process during online measurement. The axial clutch device controls the engagement and disengagement of the detection device with the bearing under test, as well as the axial contact force between them. The automatic loading and unloading device automates the feeding, detection, and unloading of the bearing under test on the assembly line, ensuring high testing efficiency. The drive, detection, and clutch functions are integrated into a modular unit, eliminating the need for external sensors or complex transmission mechanisms, thereby reducing equipment complexity.
[0005] However, the testing of rolling bearings also presents the problem of requiring too many power sources. Each power source contains an independent drive, transmission, and control system, and increasing the number of power sources will increase the overall failure rate of the equipment. Moreover, different power sources have different response times and output characteristics, requiring complex algorithms to achieve synchronous control; otherwise, testing errors are easily introduced. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-faceted testing device for rolling bearings, which solves the problems of low measurement accuracy, low efficiency, and complex measurement methods in existing rolling bearing testing.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A multi-faceted testing device for rolling bearings includes a rolling bearing body and a lower support plate. Several rolling bearing bodies are provided. A gyroscope head is located at the top center of each rolling bearing body on the lower support plate. A rotating shaft is fixedly connected to the top of the gyroscope head, and a transmission gear is fixedly connected to the top of the rotating shaft. Two gear baffles are symmetrically arranged outside the transmission gears, and high-pressure jet nozzles are arranged in opposite directions on both gear baffles. The gyroscope head drives the inner ring of the rolling bearing body under test to rotate, and the high-pressure jet nozzles drive the transmission gears to rotate. By contacting the rolling bearing body, the gyroscope head drives the inner ring of the rolling bearing body to rotate. The gyroscope head can automatically adapt to the roundness error of the inner ring of the rolling bearing body through deformation.
[0009] As a further improvement of this utility model, an air bearing is provided on the outside of the rotating shaft, and an upper support plate is fixedly connected to the top of the air bearing. An electromagnetic damper is fixedly connected to the top of the upper support plate outside the rotating shaft. A speed sensor is fixedly connected to the top of the transmission gear, and the bottom ends of the two gear baffles are fixedly connected to the top of the upper support plate. The deceleration process of the rolling bearing body is recorded in real time by the speed sensor, and the friction torque of the tested rolling bearing body is calculated by the built-in formula in the computer.
[0010] As a further improvement of this utility model, four cylindrical guide rails are symmetrically arranged on both sides of the air bearing in the middle of the lower support plate and the upper support plate. Two tension and compression sensors are symmetrically fixedly connected to the bottom of the upper support plate on both sides of the air bearing, and the bottom of each tension and compression sensor is fixedly connected to a guide rail cylinder. The connection and disconnection between the gyroscope head and the inner ring of the rolling bearing being tested can be controlled by the guide rail cylinder.
[0011] As a further improvement of this utility model, both sides of the lower support plate are provided with transmission tracks, and both ends of the transmission tracks are engaged with meshing wheels. One of the meshing wheels is located at the point of overlap with the lower support plate, near the side of the other transmission track, and is fixedly connected to a connecting rod. Five meshing wheels are provided, and another meshing wheel is fixedly connected to the other side of the connecting rod and meshes inside a transmission track. Through the transmission tracks and meshing wheels, the feeding, inspection, and unloading of the tested rolling bearing body on the assembly line are automated.
[0012] As a further improvement of this utility model, a fixing body is provided on the side of the rolling bearing body away from the lower support plate. A guide plate is fixedly connected to the top of the fixing body. A first sliding groove is formed on the side of the guide plate near the lower support plate, and a second sliding groove is formed through the side of the guide plate away from the lower support plate. A slider is slidably connected inside the first sliding groove, and a push plate is fixedly connected to the side of the slider away from the guide plate. The push plate can push the rolling bearing body under test into the testing area and push it out after the test is completed.
[0013] As a further improvement of this utility model, a connecting rod is fixedly connected to the side of the push plate away from the lower support plate. A sliding rod is rotatably connected to the end of the connecting rod away from the push plate and near the guide plate. The sliding rod is slidably connected inside the second slide groove. A rotating rod is rotatably connected to the side of the sliding rod away from the connecting rod. A rotating rod is rotatably connected to the outside of the end of the rotating rod away from the sliding rod. Through the sliding rod, rotating rod one, and rotating rod two, the push plate can be driven to perform horizontal reciprocating motion along the direction of the guide plate.
[0014] As a further improvement of this utility model, a conical wheel is fixedly connected to the side of the rotating rod two away from the rotating rod one and closer to the fixed body. A connecting block is rotatably connected to the side of the conical wheel one near the fixed body. The end of the connecting block away from the conical wheel one is fixedly connected to the surface of the fixed body. A conical wheel two meshes with the side of the conical wheel one near the meshing wheel. The conical wheel two is fixedly connected to the side of the meshing wheel. Through the meshing wheel and the conical wheel two, the power for transporting the rolling bearing body is converted into a force for pushing the rolling bearing body, thereby achieving the effect of reducing the power source.
[0015] Compared with the prior art, the advantages of this utility model are as follows:
[0016] 1. A high-pressure jet nozzle provides power to the rotating shaft. An air bearing supports the shaft and creates a frictionless environment. A transmission gear is used for speed measurement by a speed sensor. A gyroscope head contacts the rolling bearing body for drive, thus rotating the inner ring of the rolling bearing body. High-pressure air is blown circumferentially onto the transmission gear through the high-pressure jet nozzle, causing the inner ring of the tested rolling bearing body to rotate. Once the tested rolling bearing body reaches a given speed and remains stable, the air supply is cut off. At this point, the inner ring of the rolling bearing body and the rolling elements begin to decelerate freely under the action of frictional resistance. The speed sensor records the deceleration process of the rotating shaft in real time, and the frictional torque of the tested rolling bearing body is calculated by a built-in computer formula. The air bearing supports the tested rolling bearing body, creating a frictionless environment. This makes the measurement of the frictional torque of the tested rolling bearing body more accurate and can more realistically reflect the friction between the rolling elements and the raceway inside the tested bearing. High-pressure jets blow air onto the transmission gears from the circumferential direction, causing the inner ring of the rolling bearing under test to rotate. This method allows for flexible control of the acceleration, stabilization, and deceleration phases of the rolling bearing under test as needed, reducing the risks caused by drive system failures or instability during the test.
[0017] 2. By connecting the meshing wheels, connecting rods, conical wheel one, and conical wheel two, the meshing wheels are linked together by the connecting rods, allowing the feeding and unloading conveyors to use the same power source. Furthermore, the fixing of the meshing wheel to conical wheel two, and the meshing of conical wheel one and conical wheel two, ensures that the rolling bearing body is also propelled by the power of the meshing wheels. Using a single power source reduces the number of power devices, simplifies the system structure, and makes the entire detection process more compact and efficient. Moreover, using a single power source ensures that the stability of the entire system is affected only by a single power source, thereby improving the overall system stability. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle.
[0020] Figure 3 This is a three-dimensional structural diagram of the rolling bearing body, transmission track, and air bearing in this utility model.
[0021] Figure 4 This utility model Figure 3 A schematic diagram of the three-dimensional structure from another angle.
[0022] Figure 5 This is a three-dimensional structural diagram of the transmission gear, gyroscope head, and guide rail cylinder in this utility model.
[0023] Figure 6 This is a cross-sectional three-dimensional structural diagram of the guide plate in this utility model.
[0024] Figure 7 This is a three-dimensional structural diagram of the slider and push plate in this utility model.
[0025] In the diagram: 100, Rolling bearing body; 201, Transmission track; 202, Meshing wheel; 203, Connecting rod; 204, Lower support plate; 205, Guide rail cylinder; 206, Cylindrical guide rail; 207, Tension / compression sensor; 208, Upper support plate; 209, Gear baffle; 210, High-pressure jet nozzle; 211, Speed sensor; 212, Transmission gear; 213, Electromagnetic damper; 214, Air bearing; 215, Gyroscope head; 216, Rotating shaft; 301, Fixed body; 302, Guide plate; 303, Slide groove one; 304, Slide groove two; 305, Slider; 306, Push plate; 307, Connecting rod; 308, Sliding rod; 309, Rotating rod one; 310, Rotating rod two; 311, Conical wheel one; 312, Connecting block; 313, Conical wheel two. Detailed Implementation
[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0028] As shown in the figure, a multi-faceted testing device for rolling bearings includes a rolling bearing body 100, a transmission track 201, a meshing wheel 202, a guide rail cylinder 205, a gear baffle 209, a high-pressure jet nozzle 210, a transmission gear 212, a gyroscope head 215, a push plate 306, a first conical wheel 311, and a second conical wheel 313.
[0029] In use, this utility model's measuring device is functionally divided into three parts: a drive and detection device, an axial clutch device, and an automatic loading and unloading device. The drive and detection device is mainly used to drive the rotation of the bearing under test and to measure the free deceleration process of the bearing online. The axial clutch device controls the engagement and disengagement of the detection device and the bearing under test, as well as the axial contact force between them. The automatic loading and unloading device automates the feeding, detection, and unloading of the bearing under test on the assembly line, ensuring testing efficiency.
[0030] The driving and testing device mainly consists of a high-pressure jet nozzle 210, a speed sensor 211, a transmission gear 212, an electromagnetic damper 213, an air bearing 214, a gyroscope head 215, a rotating shaft 216, and a controller. The high-pressure gas ejected from the high-pressure jet nozzle 210 drives the transmission gear 212 to rotate, thereby causing the rotating shaft 216 to rotate. The gyroscope head 215 on the rotating shaft 216 contacts the tested rolling bearing body 100, thus driving the inner ring of the tested rolling bearing body 100 to rotate. The rotating shaft 216 is supported by the air bearing 214. Apart from the frictional resistance of the tested rolling bearing body 100, the rotating shaft 216 has no other friction sources, hence it is called a frictionless environment. This not only improves the measurement accuracy of the frictional torque of the rolling bearing body 100 but also increases the maximum driving speed of the tested bearing. The electromagnetic damper 213 is used to control the emergency stop of the rotating shaft 216 to improve detection efficiency, and the speed sensor 211 is used to measure the rotational speed of the rotating shaft 216 in real time. The controller controls the jet pressure of the electromagnetic proportional valve and the on / off state of the electromagnetic damper 213 through analog signals. Since the rotating shaft 216 has no other friction source, the tested rolling bearing body 100 can operate at a higher speed, thereby increasing the maximum driving speed of the tested rolling bearing body 100.
[0031] The axial clutch device consists of a guide cylinder 205, a cylindrical guide rail 206, a tension / compression sensor 207, and an electromagnetic proportional valve. It controls the connection state between the gyroscope head 215 and the tested rolling bearing body 100. The guide cylinder 205 controls the connection and disconnection between the gyroscope head 215 and the inner ring of the tested rolling bearing body 100. The electromagnetic proportional valve adjusts the air pressure of the guide cylinder 205, thereby adjusting the axial preload of the tested rolling bearing body 100. The tension / compression sensor 207 measures the axial preload, while the cylindrical guide rail 206 effectively improves the stability and reliability of the measuring device. Precise control ensures that the contact state between the gyroscope head 215 and the inner ring of the tested rolling bearing body 100 always meets the test requirements during the test, thus improving the test accuracy. Furthermore, precise control of the air pressure allows for fine-tuning of the axial preload, ensuring that the tested bearing remains in an ideal preload state throughout the test.
[0032] The automatic loading and unloading device consists of a conveyor belt 201, a meshing wheel 202, a push plate 306, a sliding rod 308, a first rotating rod 309, a second rotating rod 310, and a second conical wheel 313. Before testing, the conveyor belt 201, located on one side of the push plate 306, transports the rolling bearing body 100 to be tested to a designated position. Then, the rotation of the meshing wheel 202 drives the second conical wheel 313 to rotate, thereby driving the first conical wheel 311 to rotate. The rotation of the first conical wheel 311 drives the second rotating rod 310 to rotate. Due to the rotational connection between the second rotating rod 310, the first rotating rod 309, and the sliding rod 308, the sliding rod 308 will move randomly. Sliding rod 308 is limited by slide groove 304, causing it to reciprocate horizontally along slide groove 304. Due to the rotational connection between sliding rod 308 and connecting rod 307, and the fixing of connecting rod 307 to push plate 306, push plate 306 reciprocates, pushing the test rolling bearing body 100 to the testing station. At this point, the rotation of conveyor belt 201 stops, ceasing transport and pushing of the rolling bearing body 100. After testing, meshing wheel 202 is restarted, pushing the tested rolling bearing body 100 onto another conveyor belt 201, thus transporting it to the next testing process. The automatic loading and unloading device ensures the orderly testing of the friction torque and rotational flexibility of the rolling bearing body 100, allowing the testing device to be integrated into the assembly line. It automates the feeding, testing, and unloading of the tested rolling bearing body 100 on the assembly line, thereby improving testing efficiency.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-faceted testing device for rolling bearings, comprising a rolling bearing body (100) and a lower support plate (204), characterized in that, The rolling bearing body (100) is provided in several parts. The top of the rolling bearing body (100) located at the center of the top of the lower support plate (204) is provided with a gyroscope head (215). The top of the gyroscope head (215) is fixedly connected to a rotating shaft (216). The top of the rotating shaft (216) is fixedly connected to a transmission gear (212). Two gear baffles (209) are symmetrically arranged on the outside of the transmission gear (212). High-pressure jet nozzles (210) are provided in opposite directions on the two gear baffles (209). The gyroscope head (215) is used to drive the inner ring of the tested rolling bearing body (100) to rotate. The high-pressure jet nozzles (210) are used to drive the transmission gear (212) to rotate.
2. The multi-faceted testing device for rolling bearings according to claim 1, characterized in that, An air bearing (214) is provided on the outside of the rotating shaft (216). An upper support plate (208) is fixedly connected to the top of the air bearing (214). An electromagnetic damper (213) is fixedly connected to the top of the upper support plate (208) outside the rotating shaft (216). A speed sensor (211) is fixedly connected to the top of the transmission gear (212). The bottom ends of the two gear baffles (209) are fixedly connected to the top of the upper support plate (208).
3. The multi-faceted testing device for rolling bearings according to claim 2, characterized in that, The lower support plate (204) and the upper support plate (208) are symmetrically provided with four cylindrical guide rails (206) on both sides of the air bearing (214) in the middle. The bottom of the upper support plate (208) is symmetrically fixedly connected with two tension and compression sensors (207) on both sides of the air bearing (214). The bottom of each tension and compression sensor (207) is fixedly connected with a guide rail cylinder (205).
4. The multi-faceted testing device for rolling bearings according to claim 3, characterized in that, Both sides of the lower support plate (204) are provided with transmission tracks (201), and both ends of the transmission tracks (201) are engaged with meshing wheels (202). One of the meshing wheels (202) is located at the point where it overlaps with the lower support plate (204) and is fixedly connected to a connecting rod (203) on the side of the other transmission track (201). There are five meshing wheels (202). Another meshing wheel (202) is fixedly connected to the other side of the connecting rod (203) and meshes inside a transmission track (201).
5. The multi-faceted testing device for rolling bearings according to claim 4, characterized in that, A fixing body (301) is provided on the side of the rolling bearing body (100) away from the lower support plate (204). A guide plate (302) is fixedly connected to the top of the fixing body (301). A first sliding groove (303) is provided on the side of the guide plate (302) close to the lower support plate (204). A second sliding groove (304) is provided through the side of the guide plate (302) away from the lower support plate (204). A slider (305) is slidably connected inside the first sliding groove (303). A push plate (306) is fixedly connected on the side of the slider (305) away from the guide plate (302).
6. The multi-faceted testing device for rolling bearings according to claim 5, characterized in that, A connecting rod (307) is fixedly connected to the side of the push plate (306) away from the lower support plate (204). A sliding rod (308) is rotatably connected to the side of the connecting rod (307) away from the push plate (306) and close to the guide plate (302). The sliding rod (308) is slidably connected inside the slide groove (304). A rotating rod (309) is rotatably connected to the side of the sliding rod (308) away from the connecting rod (307). A rotating rod (310) is rotatably connected to the outside of the side of the rotating rod (309) away from the sliding rod (308).
7. A multi-faceted testing device for rolling bearings according to claim 6, characterized in that, The rotating rod 2 (310) is fixedly connected to a conical wheel 1 (311) on the side of the rotating rod 1 (309) away from the rotating rod 1 (309). A connecting block (312) is rotatably connected to the side of the conical wheel 1 (311) near the fixed body (301). The end of the connecting block (312) away from the conical wheel 1 (311) is fixedly connected to the surface of the fixed body (301). The conical wheel 1 (311) is engaged with a conical wheel 2 (313) on the side of the meshing wheel (202). The conical wheel 2 (313) is fixedly connected to the side of the meshing wheel (202).