CN108051215A - High speed roller bearing machinery loading device synchronous with thermal force and method - Google Patents
High speed roller bearing machinery loading device synchronous with thermal force and method Download PDFInfo
- Publication number
- CN108051215A CN108051215A CN201810102626.1A CN201810102626A CN108051215A CN 108051215 A CN108051215 A CN 108051215A CN 201810102626 A CN201810102626 A CN 201810102626A CN 108051215 A CN108051215 A CN 108051215A
- Authority
- CN
- China
- Prior art keywords
- bearing
- load
- room temperature
- oil
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention proposes a kind of high speed roller bearing machinery loading device synchronous with thermal force and method, including：Bearing main body system, lubricating system, hydraulic loading system；The bearing main body system includes resistance to high profit cavity and room temperature cavity, and test bearing is placed in high temperature cavity, and spring bearing is placed in room temperature cavity, and load bearings use grease lubrication roller bearing, are placed between two cavitys；Lubricating system room temperature oil circuit connects room temperature cavity, lubricates spring bearing, and high temperature oil circuit connection high temperature cavity lubricates and heating load is in test bearing；Hydraulic loading system axial force loads end and is loaded directly into axial load to test bearing outer ring, and radial loaded end loads radial load to load bearings, and radial load is transmitted to test bearing by shafting；Apparatus of the present invention realize the loading synchronous with thermal force of test bearing machinery by hydraulic loading system with lubricating system, can simulate high-speed bearing real working condition, more accurate condition is provided for bearing movable status monitoring and Performance Evaluation.
Description
Technical field
The invention belongs to bearing test and testing field more particularly to a kind of high speed roller bearing machinery and thermal force are synchronous
Loading device and method.
Background technology
In aero-engine field, as the component that support rotor-support-foundation system rotates, bearing is usually operated at high temperature, height turns
Under speed, the bad working environments of top load, the double action of thermal force and mechanical load subject.Bearing failure is to cause engine event
Barrier influences an important factor for service life of aeroengine, therefore assesses working condition of the bearing in actual engine with important
Engineering significance.Test assessment is carried out to aircraft bearing at present, simulation of the bearing at a high speed with mechanical load can only be met, had ignored
Influence of the high temperature lubricating condition to bearing movable state, result have larger gap with bearing real work state.In order to more
The real working condition of true simulation aviation high-speed bearing, has invented thermal force loading device synchronous with mechanical load, simulates bearing
Real working condition in aero-engine provides more effective test assessment for its condition monitoring, life appraisal and failure analysis
Means.
The content of the invention
Present invention aims at providing a kind of high speed roller bearing machinery loading device synchronous with thermal force, existing axis is solved
Hold lack in exerciser thermal force it is synchronous with mechanical load loading the defects of, more realistically simulate bearing operating mode.
To solve the above-mentioned problems, the technical scheme is that：
A kind of high speed roller bearing machinery loading device synchronous with thermal force, including with high temperature cavity and room temperature cavity
Bearing main body system, have the function of at the same the lubricating system of independently supplying high temperature lubricating oil and room temperature lubricating oil, have simultaneously loading axis
To the hydraulic loading system with radial load function.
Preferably, the bearing main body system includes installation housing, rotation axis, load bearings, test bearing, support shaft
It holds；Rotation axis uses dummy axle shaft, it is therefore an objective to rotation axis during loading radial load be avoided to generate Bending Deformation, test bearing is avoided to add
Moment of flexure is loaded when carrying radial load.
Preferably, the installation housing is divided into two cavitys, respectively high temperature lubricating cavity and room temperature lubrication cavity, and two
A cavity is mutually isolated；Rotation axis is installed in installation housing；Load bearings are installed in the middle part of rotation axis；Spring bearing is installed on
Rotation axis right end is placed in room temperature cavity；Test bearing is installed on rotation axis left end, is placed in high temperature cavity.Using this
The bearing support mode of sample makes rotation axis stability higher at high speed, and it is to apply thermal force that test bearing, which is placed in left end,
It is more convenient during with axial mechanical load, while reduce the heat transfer between other component, test accuracy higher.
Preferably, lubricating system includes room temperature and high temperature two sets of independent confessions, oil return apparatus；Room temperature lubricating system passes through pipeline
It is connected with bearing main body room temperature cavity, lubricates spring bearing；High temperature lubricating system is connected by pipeline and bearing main body high temperature cavity
It connects, heats simultaneously lubrication test bearing.Room temperature oil pump pumps lubricating oil to spring bearing from room temperature fuel tank, will by room temperature scavenge oil pump
Lubricating oil blowback room temperature oil tank；Lubricating oil is heated to assigned temperature by the pipeline heater for being built in high temperature oil tank, is slided by high temperature
Oil pump is pumped to test bearing, by high temperature scavenge oil pump by lubricating oil blowback high temperature oil case.It is using two sets of independent oil return feeding systems
Cause heat loss in order to avoid high temperature is mixed with room temperature lubricating oil, improve thermal force loading accuracy；Two sets of independent systems are also more just
It is more flexibly autonomous in setting a variety of operating condition of test；The independent scheme for oil return avoid spring bearing oil circuit to oil temperature,
The influence of the parameters such as lubricating oil pressure, wear metal particle, the technical parameter of measurement strictly reflect the situation of test bearing.
Preferably, load bearings use grease lubrication roller bearing, in order to reduce lubricant passage way, simplify system, easily
In replacement and safeguard.
Preferably, pipeline heater is installed in high temperature oil tank, lubricating oil is heated to test temperature, heating temperature can
Control.Quickly lubricating oil can be heated in a manner that pipeline heater is heated, meet test bearing thermal force and add
The real-time of load.Pipeline heater has many advantages, such as safety coefficient height, control accuracy is high using electrical heating simultaneously.
Preferably, hydraulic loading system is connected by pipeline and loading end with bearing main body, respectively outside load bearings
Circle applies radial load and applies axial force to test bearing outer ring.
Preferably, hydraulic loaded component include hydraulic oil container, hydraulic oil pump, hydraulic oil current divider, radial load loading end,
Axial force loads end；Hydraulic loaded component is directly acted on radial direction mechanical load on load bearings outer ring by hydraulic pump,
Radial direction mechanical load is transmitted to test bearing by rotation axis；Axial load loads end by axial hydraulic and is loaded directly into examination
Test bearing outer ring.Purpose is simplified system by the way of load bearings and axial rotary test bearing conduction radial load, and is made
Radial load steadily loads on test bearing.
Above-mentioned high speed roller bearing machinery loading method synchronous with thermal force, specifically comprises the following steps：
Lubricating oil is heated to assigned temperature by step 1, to test bearing according to specified pressure fuel feeding；
Step 2, room temperature oil pump are started to work, and room temperature lubricating oil is provided to spring bearing；
Step 3, motor provide the rotating speed of setting to rotation axis；
Step 4 reaches hydraulic loading system start-up operation after setting speed, to the axially and radially load of bearing loading setting
Lotus, system work normally comprehensively.
When preferably, to test bearing supplying high temperature lubricating oil, the high temperature cavity lubricating oil where real-time monitoring test bearing is needed
Out temperature judges to import and export whether the temperature difference is less than accuracy rating；When the temperature difference be less than designated precision, then formally to experiment axis
Hold fuel feeding；Otherwise continue to heat lubricating oil.Monitoring test bearing imports and exports oil temperature and adjusts lubricating oil heating temperature
In order to make the bearing more stably temperature range in setting, influence of bearing itself heat production to lubricating oil heating temperature is avoided.
Preferably, the oil return of high temperature cavity need to after filtering, Oil-gas Separation, cooling blowback to high temperature oil tank.Lubricating oil exists
The gas and impurity in fluid need to be filtered out during oil return.It is in order to avoid high temperature oil return is to pipeline heater that cooling is carried out to lubricating oil
The undue influence of computer heating control rule, makes heating more stable.
Preferably, Synchronization Control axial load and the size of radial load.Purpose is to meet bearing axial force and footpath constantly
The real-time loaded to power operating mode, more realistically bearing is actual bears mechanical load for simulation.
As a result of above-mentioned technology, the good effect for being allowed to have compared with prior art is the present invention：
1st, the device possesses to test bearing synchronously loading thermal force, the ability of axially and radially mechanical load, Ke Yigeng
Add the real working condition of true simulation bearing；2nd, often set system can work independently, and arbitrarily simulate is high in the range of loading range
Temperature, room temperature, axial load, the operating mode of radial load；3rd, the experiment loading unit is fexible unit, for different test bearings
Rotation axis and bearing block only need to be provided for simple replacement of, there is stronger extended capability.
Description of the drawings
Fig. 1 is the principle schematic of high speed roller bearing machinery of the present invention loading device synchronous with thermal force.
Fig. 2 is the bearing main body schematic diagram of high speed roller bearing machinery of the present invention loading device synchronous with thermal force.
Fig. 3 is the bearing lubrication system principle signal of high speed roller bearing machinery of the present invention loading device synchronous with thermal force
Figure.
Fig. 4 is the bearing hydraulic loading system principle of high speed roller bearing machinery of the present invention loading device synchronous with thermal force
Schematic diagram.
Fig. 5 is the bearing mechanical load and thermal force of high speed roller bearing machinery of the present invention loading method synchronous with thermal force
Synchronous loading flow diagram.
In figure, 1- bearing main body systems, 2- lubricating systems, 3- hydraulic loading systems, 11- installation housings, 12- rotation axis,
13- load bearings, 14- test bearings, 15- spring bearings, 16- high temperature cavitys, 17- room temperature cavitys, 21- room temperature oil pumps, 22-
Room temperature oil tank, 23- room temperature scavenge oil pumps, 24- high temperature oil tanks, 25- pipeline heaters, 26- high temperature oil pumps, 27- high temperature return
Oil pump, 31- hydraulic oil containers, 32- hydraulic oil pumps, 33- hydraulic oil current dividers, 34- axial forces loading end, the loading of 35- radial loads
End, 36- overflow valves, 37- overflow valves.
Specific embodiment
In order to be better understood from and implement, specific embodiment is provided below in conjunction with the accompanying drawings the present invention will be described in detail high speed scroll
Bearing mechanical loading device synchronous with thermal force and method.
Referring to Fig. 1 and a kind of mechanical loading device synchronous with thermal force of high speed roller bearing shown in Fig. 2, including bearing master
Body 1, lubricating system 2, hydraulic loading system 3；
The bearing assembly 1 includes installation housing 11, rotation axis 12, load bearings 13, test bearing 14, spring bearing
15；Installation housing 11 is divided to for two cavitys, is respectively high temperature lubricating cavity 16 and room temperature lubrication cavity 17, and two cavitys are mutually separated by
From；Rotation axis is installed on by load bearings 13, test bearing 14, spring bearing 15 in installation housing 11, and load bearings 13 are pacified
Loaded on 12 middle part of rotation axis, test bearing 14 is installed on the left end of rotation axis 12, is placed in high temperature lubricating cavity 16；Support shaft
It holds 15 to be installed side by side by two identical bearings, is installed on 12 right end of rotation axis, be placed in room temperature lubrication cavity 17.
Fig. 3 is the operation principle schematic diagram of lubricating system 2, and lubricating system 2 includes room temperature lubrication assembly and high temperature lubricating group
Part, room temperature lubrication assembly is independent to 15 fuel feeding of spring bearing, and high temperature lubricating component is independently to 14 fuel feeding of test bearing, load bearings
Using the roller bearing of grease lubrication.
System includes room temperature oil pump 21, room temperature oil tank 22, room temperature scavenge oil pump 23, high temperature oil tank 24, pipeline heating
Device 25, high temperature oil pump 26, high temperature scavenge oil pump 27.Lubricating oil is heated to assigned temperature by pipeline heater 25, by high temperature oil pump
26 pumps are to the test bearing 14 in high temperature cavity 16, by high temperature scavenge oil pump 27 by oil return blowback high temperature oil tank 24, oil return process
Three filtering, Oil-gas Separation, cooling steps need to be passed through；Room temperature oil pump 21 is by the support in room temperature oil pump to room temperature cavity 17
Bearing 15, by room temperature scavenge oil pump 23 by oil return blowback room temperature oil tank 22, oil return process need to pass through two filtering, Oil-gas Separation steps
Suddenly.
Fig. 4 is the operation principle schematic diagram of hydraulic loading system 3, and hydraulic loading system 3 loads end 35 by radial load
Radial load is loaded to load bearings 13, which is transmitted to test bearing 14 by rotation axis 12；It is loaded by axis axial force
End 34 directly loads axial load to test bearing outer ring.
System includes hydraulic oil container 31, hydraulic oil pump 32, hydraulic pressure oil eliminator 33, axial force loading end 34, radial load
Load end 35.Hydraulic oil pump 32 loads end 34 and radial load loading end 35 to axial force and is set according to load and provide difference
Pressure, radial load loads end 35 by radial load and is loaded directly into 13 outer ring of load bearings, by rotation axis 12 by footpath
To load transmission in test bearing 14；Axial load loads end 34 by axial force and is loaded directly into 14 outer ring of test bearing；
So as to complete the loading of test bearing axially and radially load；Pass through current divider 33, overflow valve 36,37 Synchronization Control axis of overflow valve
The flow and pressure of end 34 and radial load loading end 35 are loaded to power, realizes that the Synchronization Control of axial force and radial load adds
It carries.
Fig. 5 is the workflow of high speed roller bearing machinery loading device synchronous with thermal force, is heated first by pipeline
Lubricating oil of the device into high temperature oil tank is preheated, and to the advance fuel feeding of test bearing, is tested by temperature sensor measurement
Bearing import and export the temperature difference, when the temperature difference be less than designated precision, then formally to test bearing fuel feeding；Meanwhile room temperature oil pump starts
Work provides lubricating oil to load bearings, and motor provides the rotating speed of setting to rotation axis；Reach hydraulic loading system after setting speed
It starts to work, to the axially and radially load of bearing loading setting, system works normally comprehensively.
Claims (10)
1. high speed roller bearing machinery loading device synchronous with thermal force, which is characterized in that including：With high temperature cavity and room temperature
The bearing main body system of cavity（1）；Have the function of while the lubricating system of independently supplying high temperature lubricating oil and room temperature lubricating oil（2）, profit
Sliding system and bearing main body system（1）It is connected by pipeline；Have the function of while load the hydraulic pressure of axially and radially mechanical load
Loading system（3）, pass through fluid pressure line and bearing main body system（1）Connection.
2. the mechanical loading device synchronous with thermal force of high speed roller bearing according to claim 1, which is characterized in that described
Bearing main body system（1）Including installing housing（11）, rotation axis（12）, load bearings（13）, test bearing（14）, support shaft
It holds（15）；Housing is installed（11）It is divided into high temperature lubricating cavity（16）Cavity is lubricated with room temperature（17）, two cavitys are mutually isolated；Rotation
Shaft（12）It is installed on installation housing（11）In；Load bearings（13）It is installed on rotation axis（12）Middle part；Spring bearing（15）Peace
Loaded on rotation axis（12）Right end is placed in room temperature lubrication cavity（17）In；Test bearing（14）It is installed on rotation axis（12）Left end,
It is placed in high temperature lubricating cavity（16）In.
3. the mechanical loading device synchronous with thermal force of high speed roller bearing according to claim 1, which is characterized in that described
Lubricating system（2）Include room temperature and high temperature two sets of independent confessions, oil return apparatus；Room temperature oil pump（21）By lubricating oil from room temperature lubricating oil
Case（22）It pumps to spring bearing（15）, pass through room temperature scavenge oil pump（23）By lubricating oil blowback room temperature oil tank（22）；It is built in high temperature
Oil tank（24）Pipeline heater（25）Lubricating oil is heated to assigned temperature, by high temperature oil pump（26）It pumps to test bearing
（14）, pass through high temperature scavenge oil pump（27）By lubricating oil blowback high temperature oil tank（24）.
4. the mechanical loading device synchronous with thermal force of high speed roller bearing according to claim 2, which is characterized in that described
Load bearings（13）Using the roller bearing of grease lubrication.
5. the mechanical loading device synchronous with thermal force of high speed roller bearing according to claim 3, it is characterised in that：Pipeline
Heater（25）It is installed on high temperature oil tank（26）It is interior, lubricating oil is heated to test temperature, heating temperature is controllable.
6. the mechanical loading device synchronous with thermal force of high speed roller bearing according to claim 1, which is characterized in that hydraulic pressure
Loading system（3）Include hydraulic oil container（31）, hydraulic oil pump（32）, hydraulic oil current divider（33）, axial force loading end（34）,
Radial load loads end（35）；Hydraulic loading system（3）Pass through hydraulic oil pump（32）Radial direction mechanical load is added by radial load
Carry end（35）Directly act on load bearings（13）On outer ring, radial direction mechanical load passes through rotation axis（12）It is transmitted to experiment axis
It holds（14）；Axial load loads end by axial force（34）It is loaded directly into test bearing（14）Outer ring.
7. high speed roller bearing machinery loading method synchronous with thermal force, it is characterised in that include the following steps：
Lubricating oil is heated to assigned temperature by step 1, to test bearing（14）According to specified pressure fuel feeding；
Step 2, room temperature oil pump（21）It starts to work, to spring bearing（15）Room temperature lubricating oil is provided；
Step 3, motor provide the rotating speed of setting to rotation axis；
Step 4 reaches hydraulic loading system start-up operation after setting speed, the axially and radially load set to bearing loading,
System works normally comprehensively.
8. the mechanical loading method synchronous with thermal force of high speed roller bearing according to claim 7, which is characterized in that examination
Test bearing（14）During supplying high temperature lubricating oil, real-time monitoring test bearing is needed（14）The high temperature cavity lubricating oil out temperature at place,
Judge to import and export whether the temperature difference is less than accuracy rating；When the temperature difference be less than designated precision, then formally to test bearing（14）Fuel feeding；
Otherwise continue to heat lubricating oil.
9. the mechanical loading method synchronous with thermal force of high speed roller bearing according to claim 7, which is characterized in that high temperature
Cavity oil return need to after filtering, Oil-gas Separation, cooling blowback to high temperature oil tank.
10. the mechanical loading method synchronous with thermal force of high speed roller bearing according to claim 7, which is characterized in that same
The size of step control axial load and radial load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102626.1A CN108051215A (en) | 2018-02-01 | 2018-02-01 | High speed roller bearing machinery loading device synchronous with thermal force and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102626.1A CN108051215A (en) | 2018-02-01 | 2018-02-01 | High speed roller bearing machinery loading device synchronous with thermal force and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108051215A true CN108051215A (en) | 2018-05-18 |
Family
ID=62125645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102626.1A Pending CN108051215A (en) | 2018-02-01 | 2018-02-01 | High speed roller bearing machinery loading device synchronous with thermal force and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108051215A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519291A (en) * | 2018-05-25 | 2018-09-11 | 吉林大学 | Drawing by high temperature-fatigue mechanics ability meter and method based on electric cylinder driving |
| CN109883610A (en) * | 2019-02-26 | 2019-06-14 | 中国航发沈阳发动机研究所 | Aero-engine axial direction power measurement heating calibration furnace |
| CN114526913A (en) * | 2022-02-23 | 2022-05-24 | 郑州众城润滑科技有限公司 | Device and method for testing lubricating performance of slewing bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738313A (en) * | 2009-12-03 | 2010-06-16 | 洛阳轴研科技股份有限公司 | Method for testing bearing low-temperature lean oil resistance start-up performance for aircraft engine |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN102854014A (en) * | 2012-09-13 | 2013-01-02 | 河南科技大学 | Dynamic performance test device for angular contact ball bearing retainer |
| CN204359529U (en) * | 2014-12-15 | 2015-05-27 | 中国燃气涡轮研究院 | A kind of power load charger for aircraft bearing exerciser |
| CN105136457A (en) * | 2015-06-03 | 2015-12-09 | 重庆大学 | High/low-temperature controllable multi-specification rolling bearing test bench |
| CN106908243A (en) * | 2017-03-07 | 2017-06-30 | 宁波更大集团有限公司 | Bearing outer ring rotary test rig |
-
2018
- 2018-02-01 CN CN201810102626.1A patent/CN108051215A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738313A (en) * | 2009-12-03 | 2010-06-16 | 洛阳轴研科技股份有限公司 | Method for testing bearing low-temperature lean oil resistance start-up performance for aircraft engine |
| CN102564764A (en) * | 2011-12-31 | 2012-07-11 | 洛阳工铭机电设备有限公司 | Aircraft engine spindle bearing testing machine |
| CN102854014A (en) * | 2012-09-13 | 2013-01-02 | 河南科技大学 | Dynamic performance test device for angular contact ball bearing retainer |
| CN204359529U (en) * | 2014-12-15 | 2015-05-27 | 中国燃气涡轮研究院 | A kind of power load charger for aircraft bearing exerciser |
| CN105136457A (en) * | 2015-06-03 | 2015-12-09 | 重庆大学 | High/low-temperature controllable multi-specification rolling bearing test bench |
| CN106908243A (en) * | 2017-03-07 | 2017-06-30 | 宁波更大集团有限公司 | Bearing outer ring rotary test rig |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519291A (en) * | 2018-05-25 | 2018-09-11 | 吉林大学 | Drawing by high temperature-fatigue mechanics ability meter and method based on electric cylinder driving |
| CN108519291B (en) * | 2018-05-25 | 2023-07-04 | 吉林大学 | High-temperature stretching-fatigue mechanical property tester and method based on electric cylinder driving |
| CN109883610A (en) * | 2019-02-26 | 2019-06-14 | 中国航发沈阳发动机研究所 | Aero-engine axial direction power measurement heating calibration furnace |
| CN114526913A (en) * | 2022-02-23 | 2022-05-24 | 郑州众城润滑科技有限公司 | Device and method for testing lubricating performance of slewing bearing |
| CN114526913B (en) * | 2022-02-23 | 2024-05-14 | 郑州众城润滑科技有限公司 | Device and method for testing lubricating performance of slewing bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207763955U (en) | Aviation high speed roller bearing Work condition analogue device | |
| CN107991098A (en) | Aeroplane engine mainshaft bearing exerciser | |
| CN103674747B (en) | A kind of abrasion test table of engine | |
| CN108051215A (en) | High speed roller bearing machinery loading device synchronous with thermal force and method | |
| CN203502222U (en) | Oil film bearing test stand | |
| CN103759938A (en) | High temperature testing machine for gears | |
| CN103335838B (en) | Misalign spline vibration abrasion contrast experiment device | |
| CN113310701A (en) | Complete machine tester for mechanical system of military turbofan engine | |
| CN111721533A (en) | Rolling bearing test bed and test method | |
| Chen et al. | A novel tribometer for investigating bushing wear | |
| CN114324086B (en) | System and method for evaluating high-temperature deposition degradation characteristics of aviation lubricating oil | |
| Murugesan et al. | Analysis of an angular contact ball bearing failure and strategies for failure prevention | |
| CN102519721A (en) | Transmission gear contact pattern experimental facility | |
| Marey et al. | Novel measurement and control system of universal journal bearing test rig for marine applications | |
| Bauman | An oil-free thrust foil bearing facility design, calibration, and operation | |
| CN205091124U (en) | Detection apparatus for speed reducer torque and axial force | |
| CN207992213U (en) | Lubricating oil high-temp deposition characteristics detect experimental rig and detection pilot system | |
| CN113504048B (en) | Military turbofan engine ball bearing tester with service environment and maneuvering load simulation | |
| Lewis | Friction in a hydraulic motor piston/cam roller contact lined with PTFE impregnated cloth | |
| CN112304610B (en) | Bearing test device for low temperature | |
| CN205139142U (en) | Assess test device of lubricating oil high temperature coking behavior | |
| Pang et al. | Investigation on Lubrication State of Sliding Bearings in Low‐Speed Rotor System Subjected to Torque Load | |
| Tan et al. | Numerical simulation study of high-speed lip seal considering eccentricity | |
| CN101368873A (en) | Exceeding and joint performance testing bench for inclined strut type clutch | |
| CN202255876U (en) | Transmission gear contact pattern testing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
|
| RJ01 | Rejection of invention patent application after publication |