CN109855870B - Bearing test device - Google Patents
Bearing test device Download PDFInfo
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- CN109855870B CN109855870B CN201811649573.1A CN201811649573A CN109855870B CN 109855870 B CN109855870 B CN 109855870B CN 201811649573 A CN201811649573 A CN 201811649573A CN 109855870 B CN109855870 B CN 109855870B
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Abstract
The invention relates to a bearing test device. The bearing test device comprises a device base, wherein a main shaft, a main shaft driving device and a radial loading device are assembled on the device base, the radial loading device comprises a loading sleeve and a pushing mechanism, the device base comprises a fixed base and a movable base, the movable base is rotatably assembled on the fixed base, and a deflection adjusting mechanism is arranged between the movable base and the fixed base; the bearing test device also comprises a bearing supporting seat and a movable support, wherein the outer ring of the bearing to be tested is relatively fixed with the fixed base through the bearing supporting seat, the center of a rolling body of the bearing to be tested is positioned on a rotating axis of the movable base, and the main shaft penetrates through the bearing to be tested and a supporting bearing fixed on the movable support to be relatively fixed with the movable support; the main shaft driving device is arranged on the movable base. The bearing test device can perform various tests under the condition that the bearing to be tested has a certain deflection angle, the test process is closer to the actual working condition of the bearing used by the automobile steering gear, and the test result is more accurate.
Description
Technical Field
The invention relates to a bearing test device.
Background
The automobile steering gear bearing is a key part of an automobile, and the performance and the service life of the automobile steering gear bearing directly influence the safe driving and the quality of the automobile. The application publication number CN106969913A of the present invention is a chinese patent application, which discloses a bearing test device for an automobile steering gear, the bearing test device includes a base, the base is a device base, a spindle device, a radial loading device and an axial loading device are arranged on the base, the spindle device includes a spindle and a spindle driving motor for driving the spindle to rotate, the spindle driving motor is a spindle driving device. The radial loading device comprises a loading sleeve and a radial loading transmission mechanism, the radial loading transmission mechanism is a pushing mechanism, the radial loading transmission mechanism mainly comprises a radial loading motor, the radial loading motor is connected with a loading claw in a transmission mode and drives the loading claw to rotate to apply thrust to the loading sleeve, the radial loading transmission mechanism can apply radial load to the loading sleeve, and the loading sleeve is sleeved on the main shaft through a rolling bearing so as to apply radial load to the main shaft. The axial loading device comprises an axial loading motor, the axial loading motor is connected with a loading rocker arm in a transmission mode, the loading rocker arm is rotatably arranged on the base, one end of the loading rocker arm is provided with a roller, the roller is arranged between the two axial bearing disks, the roller is abutted against the axial bearing disks, and the spindle is axially loaded through the axial bearing disks. The bearing test device mainly uses a motor to rotate a loading claw or a loading rocker arm so as to apply reciprocating radial load or axial load to a main shaft.
The bearing test device in the prior art can only realize the control of rotating speed and load, the actual use working condition of the automobile steering gear in real life is complex, and the existing bearing test device can not completely simulate the actual working condition of the automobile steering gear bearing. For example, a bearing on an automobile steering gear further has a bearing deflection working condition under the condition that a relative deflection angle is formed between an inner ring and an outer ring, and a bearing test device in the prior art cannot simulate the working condition that the inner ring and the outer ring have the relative deflection angle, so that the test accuracy is influenced.
Disclosure of Invention
The invention aims to provide a bearing test device to solve the problem that the bearing test device in the prior art cannot simulate the working condition that inner and outer rings have relative deflection angles and the test accuracy is influenced.
In order to achieve the purpose, the technical scheme of the invention is as follows:
bearing test device, including the device base, rotate on the device base and be equipped with the main shaft that is used for the fixed inner circle of awaiting measuring the bearing, be used for driving main shaft pivoted main shaft drive arrangement and be used for the bearing of the fixed outer lane of awaiting measuring the bearing, its characterized in that: the device base comprises a fixed base and a movable base, the movable base is rotatably assembled on the fixed base, the rotating axis of the movable base is perpendicular to the axis of the main shaft, and a deflection adjusting mechanism for adjusting the rotating angle of the movable base relative to the fixed base is arranged between the movable base and the fixed base; the bearing supporting seat is fixed on the fixed base, and the main shaft is arranged on the movable base.
The invention has the beneficial effects that: the device comprises a base, a main shaft, a movable base, a main shaft and a power supply, wherein the base of the device is divided into a fixed base and the movable base; the bearing test device can perform various tests under the condition that the bearing to be tested has a certain deflection angle, the test process is closer to the actual working condition of the bearing used by the automobile steering device, and the test result is more accurate.
Further, the bearing support seat is arranged at the rotating axis of the movable base, so that the rotating axis of the movable base penetrates through the center of the bearing to be tested.
Further, an arc-shaped guide rail extending around the rotation axis of the movable base is arranged between the fixed base and the movable base, and more than two arc-shaped guide rails are arranged. The movable base can strictly rotate along the guide rail after the guide rail is arranged, the rotating track is more accurate, and the test result is more accurate.
Furthermore, the rotating axis of the movable base deviates to one side of the movable base in the length direction, and the number of the guide rails on the side is less than that on the other side. Because need set up loading device, movable base's axis of rotation is partial to movable base length direction ascending one side, and movable base is divided into two parts that length is different by the axis of rotation promptly, and the longer part of length is used for setting up loading device, and the guide rail quantity of axis of rotation both sides sets up different quantity according to the length of place side and can make movable base atress more even, rotate more smoothly.
Furthermore, the deflection adjusting mechanism comprises a screw seat arranged on the fixed base or the movable base and a pushing screw connected to the screw seat in a threaded transmission manner. The movable base can be more conveniently pushed to rotate through the pushing screw rod.
Further, the bearing test device further comprises a radial loading device for loading loads on the bearing to be tested, the radial loading device comprises a loading sleeve for transferring the radial loads to the main shaft and a pushing mechanism for pushing the loading sleeve, the radial loading device is arranged on the fixed base, and a radial spherical plain bearing or a self-aligning bearing is arranged between the loading sleeve and the main shaft. Compared with the situation that the radial loading device is arranged on the movable base, the radial loading device is arranged on the fixed base, so that the area of the movable base can be reduced, and the movable base can rotate conveniently; the radial loading device is fixed on the fixed base, the axis of the main shaft deflects after the movable base rotates, and the radial spherical plain bearing or the self-aligning bearing can normally work under the condition that the inner ring and the outer ring deflect.
Further, the radial loading device further comprises a buffer assembly arranged between the pushing mechanism and the loading sleeve. The buffer assembly can buffer the impact during loading, and the impact is prevented from influencing the accuracy of test data.
Further, the bearing test device further comprises an axial loading device, and the main shaft driving device and the axial loading device are respectively arranged at two ends of the main shaft. The main shaft driving device and the axial loading device are respectively arranged at two ends of the main shaft, so that the main shaft can rotate more stably, and the axial loading device is positioned on the axis of the main shaft and can enable the loaded axial load to accurately extend along the axis direction of the main shaft.
Furthermore, an axial loading bearing capable of bearing axial force is sleeved on the main shaft, and the axial loading device is fixed with an outer ring of the axial loading bearing. The spindle can rotate more smoothly by applying axial force to the spindle through the bearing.
Drawings
FIG. 1 is a schematic structural view of a specific embodiment of a bearing test apparatus according to the present invention;
FIG. 2 is a top view of an embodiment of a bearing test apparatus of the present invention;
FIG. 3 is an enlarged schematic view of the bearing support of FIG. 1;
FIG. 4 is an enlarged schematic view of the cradle of FIG. 1;
description of reference numerals: 1-a spindle drive; 11-a servo drive motor; 12-a coupling; 13-a torque sensor; 14-a coupling; 2-bearing support seats; 21-bearing support block top cover; 22-bearing cartridge to be tested; 23-a ring clamp; 24-a bearing to be tested; 3-a radial loading device; 31-a radial electric cylinder assembly; 32-a buffer assembly; 33-a loading sleeve; 34-a ring clamp; 35-self-aligning ball bearing; 4-a movable support; 41-movable support top cover; 42-cylindrical roller bearing cartridge; 43-a ring clamp; 44-cylindrical roller bearings; 5-an axial loading device; 51-a clip; 52-axial electric cylinder assembly; 53-a buffer assembly; 54-deep groove ball bearing; 6-device base; 61-a stationary base; 62-a movable base; 63-an arc-shaped guide rail; 7-a main shaft; 71-shaft sleeve; 8-screw seat.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the embodiment of the bearing test device, the bearing to be tested is a bearing used for an automobile steering device. As shown in fig. 1 to 2, the bearing testing apparatus in this embodiment includes an apparatus base 6, a main shaft support is disposed on the apparatus base 6, the main shaft support includes a bearing support 2 and a movable support 4, and a main shaft 7 is rotatably assembled on the apparatus base 6 through the main shaft support. The bearing test device comprises a main shaft driving device 1 used for driving a main shaft 7 to rotate, and further comprises a radial loading device 3 used for applying a radial load to the main shaft 7 and an axial loading device 5 used for applying an axial load, wherein the radial loading device 3 is located on one side of the axis of the main shaft 7, and the axial loading device 5 and the main shaft driving device 1 are respectively located at two ends of the main shaft 7.
As shown in fig. 1, the main shaft 7 is provided with the bearing 24 to be tested and a radial support bearing in a penetrating manner, in the embodiment, the radial support bearing is a cylindrical roller bearing 44, and since the cylindrical roller bearing 44 can axially displace, the axial load to be loaded is not affected. The main shaft 7 is supported and fixed on the bearing support seat 2 and the movable support seat 4 through a bearing to be tested 24 and a cylindrical roller bearing 44 which are arranged on the main shaft 7 in a penetrating mode. In this embodiment, the base 6 includes a fixed base 61 and a movable base 62, the fixed base 61 is fixedly provided with a rotating shaft, the bearing support 2 is fixedly provided on the rotating shaft, the movable base 62 is rotatably assembled on the fixed base 61 by taking the rotating shaft as a center, a rotating axis of the movable base is perpendicular to an axis of the main shaft 7, and the movable support 4 is fixedly provided on the movable base 62. The fixed base 61 is provided with an arc guide rail 63 taking the rotation center of the movable base 62 as a circle center, the movable base 62 is provided with a guide groove which is matched with the arc guide rail 63 to guide, the arc guide rail 63 is matched with the guide groove to enable the movable base 62 to rotate and rotate more accurately, and the movable base 62 is prevented from offsetting at the center in the rotation process.
As shown in fig. 2, the fixed base 61 is further provided with a screw seat 8 for pushing the movable base 62 at one side of the movable base 62, the screw seat 8 is in transmission connection with a pushing screw, and the pushing screw can rotate the pushing screw to push the movable base 62. The pushing screw and the screw seat 8 in this embodiment form a deflection adjusting mechanism, in other embodiments, a hydraulic cylinder, a motor and other mechanisms can be used to push the movable base, and at this time, the hydraulic cylinder, the motor and other mechanisms form the deflection adjusting mechanism.
As shown in fig. 1 and 3, a bearing bush 22 to be tested is arranged on the bearing support base 2, two annular clamps 23 are further arranged in the bearing bush 22 to be tested, the annular clamps 23 are respectively connected and fixed with two end faces of the bearing bush 22 to be tested through flanges, after the bearing bush 22 to be tested is sleeved outside the bearing bush 24 to be tested, the two annular clamps 23 clamp an outer ring of the bearing 24 to be tested together so as to fix the outer ring of the bearing 24 to be tested with the bearing bush 22 to be tested. The two sides of the inner ring of the bearing 24 to be tested are provided with positioning sleeves, the positioning sleeve on the right side of the inner ring of the bearing 24 to be tested is pressed on a shaft shoulder on the right side through other shaft sleeves, the left end of the left positioning sleeve is provided with a threaded sleeve in threaded fit with the threaded section of the main shaft, and the threaded sleeve can be pressed against the left positioning sleeve rightwards to clamp the inner ring of the bearing 24 to be tested. The bearing support base 2 is further provided with a bearing support base top cover 21, the bearing bush 22 to be tested is located between the bearing support base 2 and the bearing support base top cover 21, and the bearing support base top cover 21 is fixed on the bearing support base 2 through bolts so as to fix the bearing bush 22 to be tested. It should be noted that the bearing 24 to be tested should be installed at the middle position of the bearing support base 2 when installing, so as to ensure that the rotation axis of the movable base 62 passes through the center of the bearing 24 to be tested. The ring clamp 23 in this embodiment forms an outer ring fixing structure for fixing an outer ring of the bearing 24 to be tested, and the shaft sleeve 71 sleeved on the main shaft 7 forms an inner ring fixing structure. In this embodiment, the bearing bush 22 to be tested is provided with a temperature sensor and a vibration sensor, the temperature sensor is provided with a temperature measuring rod, the vibration sensor is provided with a vibration measuring rod, the bearing bush 22 to be tested is further provided with a jack, and the temperature measuring rod and the vibration measuring rod are inserted into the jack and contact with the outer ring of the bearing 24 to be tested so as to detect the temperature and the vibration state of the bearing 24 to be tested.
The same as the bearing support 2, the movable support 4 is also provided with a movable support top cover 41 and a cylindrical roller bearing bush 42, the cylindrical roller bearing bush 42 is sleeved outside the cylindrical roller bearing 44 and clamps an outer ring of the cylindrical roller bearing 44 through two annular clamping pieces 43, and the cylindrical roller bearing bush 42 is fixed on the movable support 4 through the movable support top cover 41. Unlike the bearing holder 2, the cradle 4 in this embodiment is fixed to the movable base 62.
As shown in fig. 1, 2 and 3, in the embodiment, the radial loading device 3 is fixed on the fixed base 61, the radial loading device 3 includes a loading sleeve 33 for transmitting a radial load to the spindle 7, a radial electric cylinder assembly 31 for pushing the loading sleeve 33, and a buffer assembly 32 disposed between the loading sleeve 33 and the radial electric cylinder assembly 31, the radial loading device 3 is perpendicular to the original spindle 7 axis, i.e., the output shaft of the radial electric cylinder assembly 31 is perpendicular to the original spindle 7 axis, and the loading sleeve 33 axis coincides with the original spindle 7 axis. Buffer unit 32 is the tubular structure that extends along the loading direction of load, and buffer unit 32's both ends are provided with the end plate, and the output shaft on the radial electronic jar subassembly 31 passes one end plate and extends to inside buffer unit 32, and the end fixing of output shaft has the buffer board with end plate parallel arrangement, all is provided with buffer spring between buffer board and the both sides end cover, and the transmission is connected between the end plate of loading cover 33 and buffer unit 32. The connection mode between the loading sleeve 33 and the main shaft 7 is similar to that between the bearing bush 22 to be tested and the main shaft 7, the main shaft 7 is provided with a self-aligning ball bearing 35 at a position corresponding to the radial loading device 3, and the loading sleeve 33 is clamped and fixed by an annular clamping piece 34 after being sleeved on the outer side of the self-aligning ball bearing 35. When the electric cylinder assembly loads a radial load, the buffer plate connected with the output shaft of the radial electric cylinder assembly 31 moves to push the buffer spring to apply a load to the end plate of the buffer assembly 32, and the load borne by the end plate is transmitted to the loading sleeve 33 and finally transmitted to the main shaft 7 through the self-aligning ball bearing 35 in the loading sleeve 33.
As shown in fig. 1 and 4, the axial loading device 5 includes a loading sleeve assembly for transmitting an axial load to the main shaft 7, an axial electric cylinder assembly 52 for pushing the loading sleeve assembly, and a buffer assembly 53 disposed between the loading sleeve assembly and the axial electric cylinder assembly 52, and the axial loading device 5 is fixed on a movable base 62 and can move and rotate with the main shaft 7, so that the direction of the load applied by the axial loading device 5 is always along the axis of the main shaft 7. The axial electric cylinder assembly 52 and the buffer assembly 53 in the axial loading device 5 are identical in structure to the radial electric cylinder assembly 31 and the buffer assembly 32 in the radial loading device 3, and detailed description is omitted here. The end part of the main shaft 7 close to the axial loading device 5 is provided with a deep groove ball bearing 54, the inner ring of the deep groove ball bearing 54 is fixed on the main shaft 7 through a fixed shaft sleeve on the left side and a shaft end cover on the right side of the deep groove ball bearing, the loading sleeve assembly in the axial loading device 5 is two clamping pieces 51 arranged on the left and right, and the outer ring of the deep groove ball bearing 54 is clamped and fixed through the clamping pieces 51. When the axial load is loaded, the output load of the output shaft of the axial electric cylinder assembly 52 is buffered by the buffer assembly 53 and then transmitted to the loading sleeve assembly, and then transmitted to the deep groove ball bearing 54 through the clamping piece 51 positioned on the right side, and finally the axial load is applied to the main shaft 7. The electric cylinder assembly in this embodiment is a pushing mechanism, which can apply pressure and tension to the main shaft along the axial direction and the radial direction of the main shaft, and in other embodiments, the pushing mechanism may also adopt a loading transmission mechanism as described in the patent application document with application publication No. CN106969913A, which is not described herein again.
As shown in fig. 1, the spindle driving device 1 of the present embodiment includes a servo driving motor 11, the servo driving motor 11 is connected to a torque sensor 13 through a coupling 12, and the torque sensor 13 is connected to an end of the spindle 7 through a coupling 14 to drive the spindle 7. The spindle driving device 1 is fixed on the movable base 62 and can move and rotate along with the movable base 62.
When the bearing is required to be tested for relevant performance under a working condition with a certain deflection angle, the pushing screw is rotated to push the movable base 62 and enable the movable base to rotate around the bearing support seat 2. Because the movable support 4 is fixed on the movable base 62, the movable support 4 can push the main shaft 7 to enable the main shaft 7 and the inner ring of the bearing 24 to be tested, which is sleeved on the main shaft 7, to rotate along the rotation axis of the movable base 62, but the outer ring of the bearing 24 to be tested is fixed with the bearing support base 2 and does not rotate, and therefore a certain deflection angle is formed between the outer ring and the inner ring of the bearing 24 to be tested. After the spindle 7 deflects a certain angle, the axis of the spindle 7 forms an included angle with the axis of the loading sleeve 33 in the radial loading device 3, in order to adapt to the included angle, the self-aligning ball bearing 35 is used as a bearing in the loading sleeve 33 in this embodiment, and in other embodiments, a self-aligning roller bearing or a radial spherical plain bearing may also be used. Then the spindle 7 is driven by the spindle driving device 1 to rotate and apply axial and radial loads through the axial loading device 5 and the radial loading device 3.
On the basis of the bearing 24 to be tested at a specific deflection angle, the servo motor can be programmed through an electric control and software system to realize accurate control of the rotating speed and the direction. The loading direction, the response speed and the size of the axial and radial loading electric cylinder can be quickly controlled. Finally, the simulation of the test bearing working conditions such as deflection angle, rotating speed (a rotating speed curve can be set to be rectangular wave, square wave and the like), axial load (a load waveform can be set to be rectangular wave, square wave, sine and the like), and radial load (a load waveform can be set to be rectangular wave, square wave, sine and the like) is more real. The bearing experiment device can monitor and record the temperature, vibration and torque value of the bearing 24 to be tested in real time through the sensor, and is convenient for analyzing the experimental bearing.
In this embodiment, be equipped with the arc guide rail that extends around the axis of rotation of movable base between unable adjustment base and the movable base and lead, in other embodiments, under the circumstances of guaranteeing movable base's stability, also can no longer set up the guide rail, only cooperate through the center hole wall of movable base department at the rotation center.
In this embodiment, since the radial loading device and the axial loading device are both located at one side of the bearing to be tested, and the other side of the bearing to be tested is only provided with the spindle driving device, the rotation axis of the movable base deviates to one side of the movable base in the length direction.
In other embodiments, the axis of rotation of the mobile base may not pass through the center of the bearing to be tested. For example, the bearing support is located at the side of the rotating shaft on the fixed base, and at this time, the bearing support can be selectively arranged at two sides of the movable base in a straddling manner or an avoiding hole for avoiding the bearing support is arranged on the movable base. After the movable base rotates, the movable support can still push the main shaft to rotate, so that the inner ring and the outer ring of the bearing to be tested deflect, and a deflection angle is generated. Due to the small deflection angle, the displacement of the spindle in the axial direction can be counteracted by the play between the inner and outer races of the bearing.
In this embodiment, the radial loading device is disposed on the fixed base, and in other embodiments, the radial loading device may also be disposed on the movable base.
In other embodiments, both the spindle driving device and the axial loading device can be installed on one side of the spindle axis.
In other embodiments, if only the test when the shaft is subjected to radial load needs to be tested, the axial loading device can be omitted; likewise, in other embodiments, the radial loading means may not be provided.
In other embodiments, a buffer assembly may not be disposed between the loading sleeve and the pushing mechanism.
Claims (9)
1. Bearing test device, including the device base, rotate on the device base and be equipped with the main shaft that is used for the fixed inner circle of awaiting measuring the bearing, be used for driving main shaft pivoted main shaft drive arrangement and be used for the bearing of the fixed outer lane of awaiting measuring the bearing, its characterized in that: the device base comprises a fixed base and a movable base, the movable base is rotatably assembled on the fixed base, the rotating axis of the movable base is perpendicular to the axis of the main shaft, and a deflection adjusting mechanism for adjusting the rotating angle of the movable base relative to the fixed base is arranged between the movable base and the fixed base; the fixed base is fixedly provided with a rotating shaft, the bearing supporting seat is fixedly arranged on the rotating shaft, the main shaft is supported and fixed on the movable supporting seat through a cylindrical roller bearing which is arranged on the main shaft in a penetrating mode, and the movable supporting seat is fixedly arranged on the movable base.
2. The bearing testing apparatus according to claim 1, wherein: the bearing support seat is arranged at the rotating axis of the movable base so that the rotating axis of the movable base penetrates through the center of the bearing to be tested.
3. A bearing test apparatus according to claim 1 or 2, wherein: an arc-shaped guide rail extending around the rotation axis of the movable base is arranged between the fixed base and the movable base, and more than two arc-shaped guide rails are arranged.
4. A bearing test apparatus according to claim 3, wherein: the rotating axis of the movable base deviates to one side of the movable base in the length direction, and the number of the guide rails on the side is less than that on the other side.
5. A bearing test apparatus according to claim 1 or 2, wherein: the deflection adjusting mechanism comprises a screw seat arranged on the fixed base or the movable base and a pushing screw connected to the screw seat in a threaded transmission manner.
6. A bearing test apparatus according to claim 1 or 2, wherein: the bearing test device further comprises a radial loading device used for loading loads on the bearing to be tested, the radial loading device comprises a loading sleeve used for transmitting the radial loads to the main shaft and a pushing mechanism used for pushing the loading sleeve, the radial loading device is arranged on the fixed base, and a radial spherical plain bearing or a self-aligning bearing is arranged between the loading sleeve and the main shaft.
7. The bearing testing apparatus of claim 6, wherein: the radial loading device further comprises a buffer assembly arranged between the pushing mechanism and the loading sleeve.
8. A bearing test apparatus according to claim 1 or 2, wherein: the bearing test device further comprises an axial loading device, the axial loading device comprises a pushing mechanism for pushing the main shaft, and the main shaft driving device and the axial loading device are respectively arranged at two ends of the main shaft.
9. The bearing testing apparatus of claim 8, wherein: the spindle is sleeved with an axial loading bearing capable of bearing axial force, and the axial loading device is fixed with an outer ring of the axial loading bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811649573.1A CN109855870B (en) | 2018-12-30 | 2018-12-30 | Bearing test device |
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| CN201811649573.1A CN109855870B (en) | 2018-12-30 | 2018-12-30 | Bearing test device |
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| CN109855870A CN109855870A (en) | 2019-06-07 |
| CN109855870B true CN109855870B (en) | 2020-08-21 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514442A (en) * | 2019-09-04 | 2019-11-29 | 苏州新豪轴承股份有限公司 | Bearing test tooling and bearing tester |
| CN110617963B (en) * | 2019-11-13 | 2021-02-02 | 浙江省机电产品质量检测所有限公司 | Wide-temperature-range four-dimensional driving joint bearing testing machine |
| CN110887590B (en) * | 2019-12-04 | 2021-04-23 | 兰州华汇仪器科技有限公司 | High-speed bearing friction tester |
| CN111896253B (en) * | 2020-07-31 | 2022-02-25 | 沈阳建筑大学 | Multifunctional low-temperature vacuum bearing test bench and test method |
| CN112304612A (en) * | 2020-10-21 | 2021-02-02 | 温州大学激光与光电智能制造研究院 | Axial load vibration detection device of air bearing |
| CN112268499B (en) * | 2020-11-02 | 2022-06-10 | 德尔玛轴承有限公司 | Bearing performance detection device |
| CN113532857A (en) * | 2021-07-29 | 2021-10-22 | 山东凯美瑞轴承科技有限公司 | Self-aligning rolling bearing performance test device and rigidity test method |
| CN117030255B (en) * | 2023-08-15 | 2024-03-29 | 洛阳轴承研究所有限公司 | RV reducer main bearing test device |
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| CN103323243A (en) * | 2013-06-03 | 2013-09-25 | 上海大学 | Radial sliding bearing test bed with elastic support |
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| JPH112239A (en) * | 1997-06-13 | 1999-01-06 | Nippon Seiko Kk | Device to measure various property of rolling bearing |
| CN202886099U (en) * | 2011-12-31 | 2013-04-17 | 洛阳工铭机电设备有限公司 | Aeroengine main shaft bearing testing machine |
| CN102636348B (en) * | 2012-04-10 | 2015-07-15 | 洛阳轴研科技股份有限公司 | High speed bearing tester |
| CN203241237U (en) * | 2013-04-24 | 2013-10-16 | 河南科技大学 | Bearing dust test apparatus |
| CN105738105B (en) * | 2016-04-15 | 2018-02-02 | 青岛科技大学 | A kind of high pulling torque large deflection angle Hooks coupling universal coupling testing stand |
| CN106644478B (en) * | 2016-12-26 | 2019-04-05 | 河南科技大学 | A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously |
| CN207163429U (en) * | 2017-07-12 | 2018-03-30 | 重庆茂捷汽车变速器有限公司 | A kind of automobile-used bearing deflection angle measuring device |
| CN107340134A (en) * | 2017-07-31 | 2017-11-10 | 昆明理工大学 | A kind of bearing test device |
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| CN103323243A (en) * | 2013-06-03 | 2013-09-25 | 上海大学 | Radial sliding bearing test bed with elastic support |
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