CN109855870A - A kind of bearing test device - Google Patents
A kind of bearing test device Download PDFInfo
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- CN109855870A CN109855870A CN201811649573.1A CN201811649573A CN109855870A CN 109855870 A CN109855870 A CN 109855870A CN 201811649573 A CN201811649573 A CN 201811649573A CN 109855870 A CN109855870 A CN 109855870A
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Abstract
The present invention relates to a kind of bearing test devices.Bearing test device includes device pedestal, main shaft, main shaft driving device and radial loading device are equipped on device pedestal, radial loading device includes loading sleeve and top-pushing mechanism, device pedestal includes firm banking and mobile base, mobile base rolling assembling on the fixed base, between be equipped with deflection regulating mechanism；Bearing test device further includes bearing block and movable bearing support, bearing outer ring to be tested is relatively fixed by bearing block and firm banking, and the rolling element center of bearing to be tested is located on the pivot center of mobile base, the spring bearing and movable bearing support that main shaft passes through bearing to be tested and is fixed on movable bearing support are relatively fixed；The main shaft driving device is arranged in mobile base.Bearing test device can carry out every test in the state that bearing to be tested has certain deflection angle, and test process is more nearly the actual condition of the used bearing of automobile steering device, and test result is more accurate.
Description
Technical field
The present invention relates to a kind of bearing test devices.
Background technique
A key components and parts of the automobile steering device bearing as automobile, its performance and service life directly affect the peace of automobile
Full traveling and quality height.A kind of vapour is disclosed in the Chinese invention patent application file that application publication number is CN106969913A
Vehicle direction converter bearing experimental rig, the bearing test device include base, base, that is, device pedestal, and main shaft dress is provided on pedestal
It sets, radial loading device and axial loading device, main shaft device include the spindle drive motor of main shaft and driving spindle rotation, master
Axis driving motor, that is, main shaft driving device.Radial loading device includes loading sleeve and radial loaded transmission mechanism, and radial loaded passes
Motivation structure, that is, top-pushing mechanism, radial loaded transmission mechanism mainly include radial loaded motor, and radial loaded motor drive is connected with
Pawl is loaded, drives load pawl rotation to apply thrust to loading sleeve, radial loaded transmission mechanism can be to applying diameter on loading sleeve
To load, loading sleeve is sleeved on main shaft by rolling bearing, applies radial load to main shaft to realize with this.Axially loaded dress
It sets including axially loaded motor, axially loaded motor drive is connected with load rocker arm, and load rocker arm is rotatably arranged on base, adds
It carries one end and is provided with idler wheel, between idler wheel setting and two axial carrying disks, idler wheel is pressed on axial carrying disk, warp beam
Main shaft is realized to carrier axially loaded.The bearing test device mainly makes to load pawl or load rocker arm by motor to turn
It is dynamic, to apply reciprocal radial load or axial load to main shaft.
Bearing test device in the prior art only can be realized the control of revolving speed, load, and real-life automobile
Diverter actually uses that operating condition is complicated, existing bearing test device can not simulated automotive direction converter bearing completely practical work
Condition.Such as the bearing on automobile steering device also has the bearing to work in the case where having opposite deflection angle between Internal and external cycle
Operating condition is deflected, bearing test device in the prior art can not simulate the operating condition that Internal and external cycle has opposite deflection angle, influence to survey
Try accuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of bearing test device, with solve bearing test device in the prior art without
The problem of method simulates the operating condition that Internal and external cycle has opposite deflection angle, influences test accuracy.
To achieve the above object, technical solution of the invention is:
Bearing test device, including device pedestal are rotatably equipped with for fixing in bearing to be tested on device pedestal
The main shaft of circle is supported for the main shaft driving device of driving spindle rotation and the bearing of the outer ring for fixing bearing to be tested
Seat, it is characterised in that: described device pedestal includes firm banking and mobile base, and the mobile base rolling assembling is at fixed bottom
On seat and pivot center is perpendicular to main-shaft axis, between mobile base and firm banking be equipped with for adjust mobile base relative to
The deflection regulating mechanism of the rotational angle of firm banking；Bearing block is fixed on the fixed base, and main shaft is arranged in dump bottom
On seat.
The beneficial effects of the present invention are: device pedestal is divided into firm banking and mobile base in the present invention, mobile base turns
Dynamic assembly is on the fixed base and pivot center is perpendicular to main-shaft axis, after mobile base turns an angle, drives main shaft
It can be rotated with the center of rotation of mobile base；And bearing outer ring to be tested and firm banking are relatively fixed, inner ring with main axis,
Certain deflection angle is formed between the axis of outer ring after inner ring axis rotation, which can have in bearing to be tested
Every test is carried out in the state of certain deflection angle, test process is more nearly the practical work of the used bearing of automobile steering device
Condition, test result are more accurate.
Further, the rotation axis for making mobile base is arranged at the pivot center of mobile base in the bearing block
Line passes through the center of bearing to be tested.
Further, the arc extended around the pivot center of mobile base is equipped between the firm banking and mobile base
Guide rail, the arc-shaped guide rail are equipped with twice or more.Mobile base can be rotated strictly along guide rail after setting guide rail, be rotated
Track is more accurate, and test result is more acurrate.
Further, the pivot center of the mobile base is biased to the side on mobile base length direction, which leads
Rail quantity is less than the guide rail quantity of the other side.Due to needing to be arranged loading device, the pivot center of mobile base is biased to dump bottom
Side on seat length direction, i.e. mobile base are rotated axis and have been divided into the different two parts of length, the longer part of length
For loading device to be arranged, different quantity, which is arranged, according to the length of place side in the guide rail quantity of pivot center two sides can make to live
Dynamic pedestal stress more evenly, rotation it is more smooth.
Further, the deflection regulating mechanism includes the screw bolt seat being arranged in firm banking or mobile base, is also wrapped
Include the pushing tow screw rod that screw-driven is connected on screw bolt seat.Being easily facilitated by pushing tow screw rod pushes mobile base to be rotated.
Further, bearing test device further includes the radial loading device for treating test bearing loaded load, diameter
It include for the loading sleeve to main shaft transmitting radial load and the top-pushing mechanism for pushing loading sleeve, the diameter to loading device
On the fixed base to loading device setting, plain radial bearing or self-aligning bearing are equipped between loading sleeve and main shaft.Compared to
Radial loading device setting can reduce dump bottom the mobile base the case where, by radial loading device setting on the fixed base
Seat surface product, rotates convenient for mobile base；Radial loading device is fixed on the fixed base, and main-shaft axis is sent out after mobile base rotation
Raw deflection, and plain radial bearing or self-aligning bearing can be worked normally in the case where inner ring and outer ring deflects.
Further, the radial loading device further includes the Buffer Unit being arranged between top-pushing mechanism and loading sleeve.
Buffer Unit can buffer impact when loaded load, and this impact is avoided to influence the accuracy of test data.
Further, the bearing test device further includes axial loading device, main shaft driving device and axially loaded dress
Set the both ends for being separately positioned on main shaft.The both ends that main shaft driving device and axial loading device are separately positioned on main shaft can make to lead
Axis rotation is more stable, and axial loading device, which is located on main-shaft axis, can make the axial load of load accurately along main-shaft axis
Direction extends.
Further, the axially loaded bearing that can bear axial force, the axial loading device are arranged on the main shaft
It is fixed with the outer ring of axially loaded bearing.Applying axial force to main shaft by bearing can make main axis more smooth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment of the bearing test device in the present invention；
Fig. 2 is the top view of the specific embodiment of the bearing test device in the present invention；
Fig. 3 is the enlarged diagram at the bearing block in Fig. 1；
Fig. 4 is the enlarged diagram at the movable bearing support in Fig. 1；
Description of symbols: 1- main shaft driving device；11- servo drive motor；12- shaft coupling；13- torque sensor；
14- shaft coupling；2- bearing block；21- bearing block top cover；22- bearing insert to be tested；23- annular folder；24- is waited for
Test bearing；3- radial loading device；The radial electronic cylinder component of 31-；32- Buffer Unit；33- loading sleeve；34- annular folder；
35- self-aligning ball bearing；4- movable bearing support；41- movable bearing support top cover；42- cylinder roller bearing bushing；43- annular folder；44-
Cylinder roller bearing；5- axial loading device；51- clamps part；The axial electronic cylinder component of 52-；53- Buffer Unit；54- deep-groove ball
Bearing；6- device pedestal；61- firm banking；62- mobile base；63- arc-shaped guide rail；7- main shaft；71- axle sleeve；8- screw bolt seat.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of bearing test device of the invention, bearing to be tested is made by automobile steering device in the present embodiment
Bearing.As shown in Figure 1 to Figure 2, the present embodiment middle (center) bearing experimental rig includes device pedestal 6, is provided on device pedestal 6
Spindle bearing, spindle bearing include bearing block 2 and movable bearing support 4, and main shaft 7 is by spindle bearing rolling assembling at device bottom
On seat 6.Bearing test device includes the main shaft driving device 1 rotated for driving spindle 7, further includes for applying to main shaft 7
The radial loading device 3 of radial load and the axial loading device 5 for applying axial load, radial loading device 3 are located at main shaft 7
The side of axis, axial loading device 5 and main shaft driving device 1 are located at the both ends of main shaft 7.
As shown in Figure 1, bearing 24 and radial support bearing to be tested are coated on main shaft 7, radial support in the present embodiment
Selection of Bearings cylinder roller bearing 44 can't be to the axial direction of load since axial displacement can occur for cylinder roller bearing 44
Load has an impact.Main shaft 7 is fixed by bearing to be tested 24 and cylinder roller bearing 44 support being installed on main shaft 7 respectively
On bearing block 2 and movable bearing support 4.Device pedestal 6 includes firm banking 61 and mobile base 62 in the present embodiment, is fixed
Shaft is fixedly installed on pedestal 61, bearing block 2 is fixed in shaft, and mobile base 62 is turned centered on shaft
Dynamic to be assemblied on firm banking 61 and pivot center is perpendicular to the axis of main shaft 7, movable bearing support 4 is fixed at mobile base 62
On.It is provided with the arc-shaped guide rail 63 using the center of rotation of mobile base 62 as the center of circle on firm banking 61, is set in mobile base 62
It is equipped with and cooperates the guide groove being oriented to arc-shaped guide rail 63, arc-shaped guide rail 63 and guide groove cooperation are easier to rotate mobile base 62
And rotation is more accurate, preventing mobile base 62, center shifts during rotation.
As shown in Fig. 2, firm banking 61 is additionally provided with the spiral shell for pushing tow mobile base 62 in the side of mobile base 62
Pole socket 8, pushing tow screw rod is sequentially connected on screw bolt seat 8, and rotation pushing tow screw rod can make 62 turns of mobile base of pushing tow screw rod pushing tow
It is dynamic.Pushing tow screw rod and screw bolt seat 8 in the present embodiment constitute deflection regulating mechanism, in other embodiments, can also use
The mechanism urges mobile base such as hydraulic cylinder, motor, the mechanisms such as hydraulic cylinder, motor constitute deflection regulating mechanism at this time.
As shown in figures 1 and 3, bearing insert 22 to be tested is provided on bearing block 2, in bearing insert 22 to be tested
It also sets up there are two annular folder 23, annular folder 23 is separately connected solid by flange and 22 both ends of the surface of bearing insert to be tested
Fixed, bearing insert 22 to be tested is set in latter two annular folder 23 of 24 outside of bearing to be tested and clamps bearing 24 to be tested jointly
Outer ring with the outer ring of bearing 24 to be tested and bearing insert 22 to be tested is fixed.The inner ring two sides of bearing 24 to be tested are arranged
There is positioning sleeve, the positioning sleeve on the right side of the inner ring of bearing 24 to be tested is pressed on the shaft shoulder on right side through other axle sleeves, left side positioning
The left end of set is provided with the thread bush being threadedly engaged with the thread segment of main shaft, and thread bush can press to the right left side positioning sleeve, with
Clamp the inner ring of bearing 24 to be tested.Bearing block top cover 21, bearing insert 22 to be tested are additionally provided on bearing block 2
Between bearing block 2 and bearing block top cover 21, bearing block top cover 21 is bolted on bearing bearing
With fixation bearing insert 22 to be tested on seat 2.It should be noted that bearing 24 to be tested should be mounted on to bearing bearing when installation
The middle position of seat 2, to ensure that the pivot center of mobile base 62 passes through the center of bearing 24 to be tested.In the present embodiment
Annular folder 23 constitutes the external ring fixing structure of the outer ring of fixed bearing 24 to be tested, and the axle sleeve 71 being arranged on main shaft 7 is constituted
Inner ring fixed structure.Temperature sensor and vibrating sensor, temperature are provided on bearing insert 22 to be tested in the present embodiment
Sensor has thermometric bar, and vibrating sensor has vibration measuring bar, is additionally provided with jack on bearing insert 22 to be tested, thermometric bar and
The outer ring of bearing 24 to be tested is touched in vibration measuring bar insertion jack to detect the temperature and vibrational state of bearing 24 to be tested.
It is identical as bearing block 2, movable bearing support top cover 41 and cylinder roller bearing bushing are also equipped on movable bearing support 4
42, cylinder roller bearing bushing 42 is set in 44 outside of cylinder roller bearing and clamps cylinder rolling by two annular folders 43
The outer ring of sub- bearing 44, cylinder roller bearing bushing 42 are fixed on movable bearing support 4 by movable bearing support top cover 41.With bearing branch
It holds unlike seat 2, the movable bearing support 4 in the present embodiment is fixed in mobile base 62.
As shown in Figure 1, Figure 2 and Figure 3, radial loading device 3 has been fixed on firm banking 61 in the present embodiment, radial to add
Carrying and setting 3 includes loading sleeve 33, the electronic cylinder component of radial direction for pushing loading sleeve 33 for transmitting radial load to main shaft 7
31 and the Buffer Unit 32 that is arranged between loading sleeve 33 and radial electronic cylinder component 31, radial loading device 3 is perpendicular to initial
7 axis of main shaft, i.e., the output shaft of radial electronic cylinder component 31 is perpendicular to initial 7 axis of main shaft, 33 axis of loading sleeve and just
7 axis of main shaft of beginning is overlapped.Buffer Unit 32 is the tube structure extended along the loading direction of load, the both ends of Buffer Unit 32
It is provided with end plate, the output shaft on radial electronic cylinder component 31 passes through one end end plate and extends to inside Buffer Unit 32, output shaft
End be fixed with end plate parallel arrangement buffer board, buffer spring is provided between buffer board and two sides end cap, load
It is sequentially connected between set 33 and the end plate of Buffer Unit 32.Connection type and bearing to be tested between loading sleeve 33 and main shaft 7
Connection type between bushing 22 and main shaft 7 is similar, and main shaft 7 is provided with spherical ball at the position of corresponding radial loading device 3
Bearing 35, loading sleeve 33 are set in behind 35 outside of self-aligning ball bearing and clamp fixation by annular folder 34.Electronic cylinder component load
When radial load, the buffer board of the output axis connection of radial electronic cylinder component 31 is mobile, pushes buffer spring to Buffer Unit 32
End plate apply load, the load that end plate is subject to is transferred to again on loading sleeve 33, through the self-aligning ball bearing 35 inside loading sleeve 33
It is finally transmitted on main shaft 7.
As shown in Figure 1 and Figure 4, axial loading device 5 include for main shaft 7 transmit axial load loading sleeve component,
It pushes the electronic cylinder component 52 of axial direction of loading sleeve component and is arranged in slow between loading sleeve component and axial electronic cylinder component 52
Component 53 is rushed, axial loading device 5 is fixed in mobile base 62, can be rotated with main shaft 7, therefore axial loading device
5 loading directions applied are always along the axis of main shaft 7.The electronic cylinder component 52 of axial direction and Buffer Unit in axial loading device 5
53 is identical with the electronic cylinder component 31 of the radial direction in radial loading device 3 and 32 structure of Buffer Unit, and details are not described herein.It is main
Axis 7 is provided with deep groove ball bearing 54 in the end close to axial loading device 5, and 54 inner ring of deep groove ball bearing passes through consolidating on the left of it
Dead axle set and the hubcap on right side are fixed on main shaft 7, and the loading sleeve component in axial loading device 5 is two of left and right arrangement
Part 51 is clamped, the outer ring of deep groove ball bearing 54 is fixedly clamped by clamping part 51.When loading axial load, axial electronic cylinder component
52 output shaft output loads are transferred on loading sleeve component, using clamping positioned at right side after the buffering of Buffer Unit 53
Part 51 is transmitted to deep groove ball bearing 54, finally applies axial load to main shaft 7.The top that electronic cylinder component in the present embodiment is
Pushing mechanism can apply pressure and pulling force to main shaft along the positive and negative both direction axially and radially of main shaft, in other embodiments,
Top-pushing mechanism can also use the load driver such as application publication number to record in the patent application document of CN106969913A
Structure, details are not described herein.
As shown in Figure 1, main shaft driving device 1 includes servo drive motor 11 in the present embodiment, servo drive motor 11 is logical
It crosses shaft coupling 12 and is connected with torque sensor 13, torque sensor 13 is connected to 7 end of main shaft by shaft coupling 14 again, with driving
Main shaft 7.Main shaft driving device 1 is fixed in mobile base 62, and mobile base 62 can be followed to rotate.
When needing correlated performance of the test bearing under the operating condition with certain deflection angle, pushing tow screw rod, pushing tow are rotated
Screw rod pushing tow mobile base 62 simultaneously rotates its circular bearing block 2.Since movable bearing support 4 has been fixed on mobile base 62
On, movable bearing support 4 then will push that main shaft 7 makes main shaft 7 and the inner ring of bearing to be tested 24 that is set on main shaft 7 is along dump bottom
The pivot axis of seat 62, but the outer ring of bearing to be tested 24 does not rotate with the fixation of bearing block 2, therefore to be measured
It tries to form certain deflection angle between the outer ring and inner ring of bearing 24.After main shaft 7 deflects certain angle, 7 axis of main shaft and radial direction
33 axis of loading sleeve in loading device 3 forms angle, and to adapt to this angle, the bearing in the present embodiment in loading sleeve 33 is adopted
Self-aligning roller bearing or plain radial bearing can also be used in other embodiments with self-aligning ball bearing 35.Later again by
1 driving spindle 7 of main shaft driving device rotates and is applied axially and radially by axial loading device 5 and radial loading device 3
Load.
In bearing 24 to be tested on the basis of specific deflection angle, servo motor can be compiled by automatically controlled and software systems
Cheng Shixian revolving speed, the accurate control in direction.Can simultaneously to axially and radially load electric cylinder loading direction, response speed and
Size is quickly controlled.It is finally reached to test bearing operating condition, such as (speed curves can be set to square for deflection angle, revolving speed
Shape wave, square wave etc.), axial load (load waveform can be set to rectangular wave, square wave, sine etc.), radial load (load waveform
Can be set to rectangular wave, square wave, sine etc.) more really simulation.Bearing test device can be by sensor to be measured
The temperature of examination bearing 24, vibration, torque value are monitored and are recorded in real time, convenient for the analysis to test bearing.
It is equipped in the present embodiment, between firm banking and mobile base and is led around the arc that the pivot center of mobile base extends
Rail is oriented to, and in other embodiments, in the case where guaranteeing the stability of mobile base, guide rail can also no longer be arranged,
Only the center hole wall by mobile base at rotation center is cooperated.
It is to be tested since radial loading device and axial loading device are respectively positioned on bearing side to be tested in the present embodiment
The bearing other side is only arranged main shaft driving device, therefore the pivot center of mobile base is biased to mobile base in the longitudinal direction
The center position of mobile base can also be arranged in other embodiments in the pivot center of mobile base by side.
In other embodiments, the pivot center of mobile base can also be not passed through the center of bearing to be tested.For example, axis
Hold the side that fulcrum bearing is located at shaft on the fixed base, at this time bearing block can choose be crossed on mobile base two sides or
It is the avoid holes of the setting evacuation bearing block in mobile base.After mobile base rotation, movable bearing support is still able to push
Main axis makes to deflect between bearing inner race to be tested and outer ring, generates deflection angle.Since deflection angle is smaller, main shaft
The displacement generated in the axial direction can be offset by the clearance between bearing internal external circle.
In the present embodiment, radial loading device is arranged on firm banking, in other embodiments, radial loading device
Also it can be set in mobile base.
Main shaft driving device and axial loading device in the present embodiment are separately positioned on the both ends of main shaft, in other implementations
In example, main shaft driving device and axial loading device can be installed within the side of main-shaft axis.
In other embodiments, if only needing test of the test bearing by radial load when, axis can also be no longer set
To loading device；Likewise, in other embodiments, radial loading device can also no longer be arranged.
In other embodiments, Buffer Unit can not also be set between loading sleeve and top-pushing mechanism.
Claims (9)
1. bearing test device, including device pedestal, the inner ring for fixing bearing to be tested is rotatably equipped on device pedestal
Main shaft, for driving spindle rotation main shaft driving device and the outer ring for fixing bearing to be tested bearing block,
It is characterized by: described device pedestal includes firm banking and mobile base, the mobile base rolling assembling is in firm banking
Upper and pivot center is equipped with for adjusting mobile base relative to solid perpendicular to main-shaft axis, between mobile base and firm banking
Determine the deflection regulating mechanism of the rotational angle of pedestal；Bearing block is fixed on the fixed base, and main shaft is arranged in mobile base
On.
2. bearing test device according to claim 1, it is characterised in that: the bearing block is arranged in mobile base
Pivot center at make mobile base pivot center pass through bearing to be tested center.
3. bearing test device according to claim 1 or 2, it is characterised in that: the firm banking and mobile base it
Between be equipped with around mobile base pivot center extend arc-shaped guide rail, the arc-shaped guide rail be equipped with twice more than.
4. bearing test device according to claim 3, it is characterised in that: the pivot center of the mobile base is biased to live
Side on dynamic base length direction, the guide rail quantity of the side are less than the guide rail quantity of the other side.
5. bearing test device according to claim 1 or 2, it is characterised in that: the deflection regulating mechanism includes setting
Screw bolt seat on firm banking or mobile base further includes the pushing tow screw rod that screw-driven is connected on screw bolt seat.
6. bearing test device according to claim 1 or 2, it is characterised in that: bearing test device further include for pair
The radial loading device of bearing loaded load to be tested, radial loading device include for the load to main shaft transmitting radial load
Set and the top-pushing mechanism for pushing loading sleeve, radial loading device setting on the fixed base, loading sleeve and main shaft it
Between be equipped with plain radial bearing or self-aligning bearing.
7. bearing test device according to claim 6, it is characterised in that: the radial loading device further includes that setting exists
Buffer Unit between top-pushing mechanism and loading sleeve.
8. bearing test device according to claim 1 or 2, it is characterised in that: the bearing test device further includes axis
To loading device, axial loading device includes the top-pushing mechanism of pushing tow main shaft, main shaft driving device and axial loading device difference
The both ends of main shaft are set.
9. bearing test device according to claim 8, it is characterised in that: axial force can be born by being arranged on the main shaft
Axially loaded bearing, the outer ring of the axial loading device and axially loaded bearing is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649573.1A CN109855870B (en) | 2018-12-30 | 2018-12-30 | Bearing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649573.1A CN109855870B (en) | 2018-12-30 | 2018-12-30 | Bearing test device |
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| Publication Number | Publication Date |
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| CN109855870A true CN109855870A (en) | 2019-06-07 |
| CN109855870B CN109855870B (en) | 2020-08-21 |
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| CN201811649573.1A Active CN109855870B (en) | 2018-12-30 | 2018-12-30 | Bearing test device |
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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 |
| CN110617963A (en) * | 2019-11-13 | 2019-12-27 | 浙江省机电设计研究院有限公司 | Wide-temperature-range four-dimensional driving joint bearing testing machine |
| CN110887590A (en) * | 2019-12-04 | 2020-03-17 | 兰州华汇仪器科技有限公司 | High-speed bearing friction tester |
| CN111896253A (en) * | 2020-07-31 | 2020-11-06 | 沈阳建筑大学 | Multifunctional low-temperature vacuum bearing test bench and test method |
| CN112268499A (en) * | 2020-11-02 | 2021-01-26 | 新昌县羽林街道立锋轴承厂 | Bearing performance detection device |
| 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 |
| 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 |
| CN117030255A (en) * | 2023-08-15 | 2023-11-10 | 洛阳轴承研究所有限公司 | RV reducer main bearing test device |
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| 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 |
| CN110617963A (en) * | 2019-11-13 | 2019-12-27 | 浙江省机电设计研究院有限公司 | Wide-temperature-range four-dimensional driving joint bearing testing machine |
| CN110887590A (en) * | 2019-12-04 | 2020-03-17 | 兰州华汇仪器科技有限公司 | High-speed bearing friction tester |
| 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 |
| CN111896253A (en) * | 2020-07-31 | 2020-11-06 | 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 |
| CN112268499A (en) * | 2020-11-02 | 2021-01-26 | 新昌县羽林街道立锋轴承厂 | Bearing performance detection device |
| 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 |
| WO2023004911A1 (en) * | 2021-07-29 | 2023-02-02 | 山东凯美瑞轴承科技有限公司 | Self-aligning rolling bearing performance testing apparatus and rigidity testing method |
| CN117030255A (en) * | 2023-08-15 | 2023-11-10 | 洛阳轴承研究所有限公司 | RV reducer main bearing test device |
| 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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