CN208091696U - The rolling bearing fatigue life pilot system of radially alternating load can be applied - Google Patents
The rolling bearing fatigue life pilot system of radially alternating load can be applied Download PDFInfo
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- CN208091696U CN208091696U CN201721877043.3U CN201721877043U CN208091696U CN 208091696 U CN208091696 U CN 208091696U CN 201721877043 U CN201721877043 U CN 201721877043U CN 208091696 U CN208091696 U CN 208091696U
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- rolling bearing
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- radially alternating
- fatigue life
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Abstract
The utility model is related to a kind of rolling bearing fatigue life pilot systems applying radially alternating load, the system controls the rotation of driving motor by computer, drive rolling bearing with given rotation speed operation, in radially alternating load loading unit, the stretching/compressing amount of spring is influenced by linear motor displacement, due to the change of the stretching/compressing amount of spring, spring can apply of different sizes on floating holder surface, the active force of direction-agile, by adding the load that the radially alternating load of bearing may be implemented in multiple radially alternating load loading units in floating holder different zones, torquemeter and temperature sensor can be used for detecting the performance in rolling bearing operation process.Compared with prior art, the load of the radially alternating load of rolling bearing may be implemented in the utility model, in conjunction with the real working condition condition of internal combustion engine, carries out rolling bearing fatigue life test, is not only simple in structure, save space, and controls more accurately, directly.
Description
Technical field
The utility model belongs to engine rolling bearing life experiment field, is related to a kind of applying radially alternating load
Rolling bearing fatigue life pilot system.
Background technology
Internal combustion engine is widely used in automobile, ship, aircraft, tank, railway locomotive, agricultural machinery, engineering machinery, power generation
Multiple industries such as unit, play a very important role as power-equipment in national economy.Include work in internal combustion engine
Plug-cylinder sleeve, piston ring-cylinder liner, bent axle-bearing and cam-tappet etc. are several to important friction pair, wherein crankshaft bearing, including
Base bearing and the connecting-rod bearing (since the size and Orientation of such bearing working load all changes over time, are thus generically referred to as moving
Load bearings), it is the most key one of the friction pair of internal combustion engine, it not only influences the reliability of internal combustion engine and tired longevity
Life, also affects the potentiality that internal combustion engine is further strengthened.
Currently, car engine main bearing, camshaft bearing and connecting rod bottom-end bearing are mainly using sliding bearing, it is few
The camshaft bearing of number engine uses rolling bearing.According to tribology theory, rolling friction is damaged than the energy of sliding friction
Small an order of magnitude or so is wanted in mistake.Therefore, under identical working condition, the friction loss of rolling bearing is much smaller than sliding axle
It holds, thus the important trial that bearing element chemical conversion lowers consumption for engine antifriction.
The fatigue life of rolling bearing and its reliability are the most important performance indicators of rolling bearing, but tired due to influencing
Labor factors of limit life is too many and bearing fatigue life theory still needs to perfect, and it is currently the only effective way to carry out life test.Axis
It is essential and basic important verification process in design bearing and manufacturing process to hold experiment.The load load of test bearing is as axis
The important parameter of testing machine test is held, accuracy directly affects the test result of bearing.Rolling bearing experiment traditional at present
System loads characteristic is single, can not achieve the load of changeable load, and dynamic load rolling bearing is often in alternation in true internal combustion engine
Load, therefore traditional rolling bearing pilot system is difficult to carry out the experiment of engine dynamic load rolling bearing fatigue life.
Invention content
The purpose of this utility model is exactly to overcome the problems of the above-mentioned prior art and diameter can be applied by providing one kind
To the rolling bearing fatigue life pilot system of alternating load.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of rolling bearing fatigue life pilot system applying radially alternating load, for measuring rolling bearing in diameter
Fatigue life under to alternate load effect, the rolling bearing are distributed in inner ring by outer ring, inner ring and by retainer
Multiple rolling elements composition between outer ring, which includes,
Workbench,
Driving motor is connected on workbench,
Rotary shaft is sequentially connected with driving motor, and the rotary shaft is equipped with torquemeter,
Stationary fixture A and stationary fixture B, is connected on workbench, one is clamped in each stationary fixture, examination is accompanied to roll
Bearing,
Floating holder divides fixture and lower activity point between stationary fixture A and stationary fixture B by opposed upper activity
Fixture forms, and is clamped at least one subject rolling bearing in the floating holder, the subject rolling bearing and accompanies examination
Rolling bearing is coaxially disposed, and is arranged on the rotary shaft,
Temperature sensor is arranged in floating holder, and is contacted with subject rolling bearing,
Radially alternating load loading unit, the charging assembly acted on floating holder by four form, each charging assembly
It being made of the linear motor, load loading spring and connector that are sequentially connected successively, the connector is connect with floating holder,
The load loading spring of four charging assemblies is in " ten " set up of character patt ern, and the telescopic direction of each load loading spring is in rotary shaft
In the radial direction, the linear motor is made of track and the thrust coil being sequentially connected with track, the thrust
Coil is fixed on workbench, and one end of track is connect with load loading spring, and the length direction of track adds with load
It is consistent to carry telescopic spring direction.
Preferably, two subject rolling bearings are clamped in the floating holder.
Preferably, the upper activity divides the bottom of fixture to be equipped with upper arc groove, and the lower activity divides the top of fixture
Equipped with lower arcuate slot, upper arc groove and lower arcuate slot are handed over the clamping part to match with rolling bearing, the radial direction is combined into
Varying load loading unit is made of upper charging assembly, lower charging assembly, left charging assembly and right charging assembly, the upper load
Component, which is arranged, to be divided the top of fixture in upper activity and acts on the top that upper activity divides fixture, and lower charging assembly setting exists
Lower activity divides the lower section of fixture and acts on the bottom that lower activity divides fixture, and the left charging assembly is arranged in floating holder
Left side simultaneously acts on the junction that activity divides fixture and lower activity divides fixture, and the right charging assembly is arranged in floating holder
Right side and act on the junction that activity divides fixture and lower activity divides fixture.
Preferably, the temperature sensor is arranged in upper arc groove or lower arcuate slot, and with the outer ring of rolling bearing
Contact.
Preferably, the rotary shaft is sequentially connected by shaft coupling and driving motor.
Preferably, which further includes communicating to connect respectively with driving motor, temperature sensor, torquemeter and linear motor
The controller connect.
Preferably, the system further include for for accompany examination rolling bearing and be tested rolling bearing provide lubricating oil for oil machine
Structure, the oil supply mechanism are connect with controller communication.
The operation principle of the utility model is：
Computer (controller) controls the rotation of driving motor, drives rolling bearing with given rotation speed operation.In radial direction
In alternating load loading unit, the change of linear motor displacement is controlled by computer, and linear motor displacement changes
The stretching/compressing amount of spring can be influenced by becoming.Due to the change of the stretching/compressing amount of spring, spring can be in floating holder
Surface applies of different sizes, direction-agile active force.By adding multiple radially alternating load in floating holder different zones
The load of journal bearing alternating load may be implemented in loading unit.Computer controls rolling bearing operation process by oil supply mechanism
In oil mass supply, torquemeter and temperature sensor can be used for detecting the performance in rolling bearing operation process.
Compared with prior art, the utility model has the advantages that：
(1) displacement of linear motor is controlled by computer, and then changes compression/amount of tension of spring, controls spring
Elastic force, the load of the radially alternating load of bearing may be implemented.
(2) the real working condition condition for combining internal combustion engine, the variation of the displacement and time of linear motor is controlled by computer
Amount, may be implemented the load of internal combustion engine real working condition load.Contribute to carry out the engine dynamic load axis of rolling using the pilot system
Hold fatigue life test.
(3) linear motor directly controls the flexible of load loading spring, is not only simple in structure, and saves space, and control
It is more accurate, direct.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the radially alternating load loading unit of the utility model.
In figure, 1 is computer, and 2 be driving motor, and 3 be shaft coupling, and 4 be torquemeter, and 5 be stationary fixture A, and 6 be fuel feeding
Mechanism, 7 be radially alternating load loading unit, and 8 be floating holder, and 81 divide fixture for upper activity, and 82 divide fixture for lower activity, 9
It is rotary shaft for stationary fixture B, 10,11 is accompany examination rolling bearing B, and 12 be subject rolling bearing B, and 13 be subject rolling bearing A,
14 is accompany examination rolling bearing A, and 15 be workbench, and 16 be temperature sensor, and 17 be track, and 18 be thrust coil, and 19 be load
Loading spring, 20 be connector.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of rolling bearing fatigue life pilot system applying radially alternating load, as shown in Fig. 1~2, for surveying
Determine fatigue life of the rolling bearing under the effect of radially alternating load, rolling bearing is by outer ring, inner ring and passes through retainer point
The multiple rolling elements composition being distributed between inner ring and outer ring, which includes,
Workbench 15,
Driving motor 2 is connected on workbench 15,
Rotary shaft 10 is sequentially connected with driving motor 2, is sequentially connected preferably by shaft coupling 3 and driving motor 2, rotation
Axis 10 is equipped with torquemeter 4,
Stationary fixture A5 and stationary fixture B9, is connected on workbench 15, is clamped in stationary fixture A5 and examination is accompanied to roll
It is clamped in bearing A14, stationary fixture B9 and accompanies examination rolling bearing B11, accompany examination rolling bearing A 14 and accompany examination rolling bearing B 11
Play the role of supporting rotary shaft 10,
Floating holder 8 divides fixture 81 He between stationary fixture A5 and stationary fixture B9 by upper activity opposite to each other up and down
Lower activity divides fixture 82 to form, and is clamped at least one subject rolling bearing in floating holder 8, in the present embodiment there are two clampings
It is tested rolling bearing, is respectively tested rolling bearing A13 and subject rolling bearing B12, rolling bearing is tested and accompanies the examination axis of rolling
Coaxial arrangement is held, and is set in rotary shaft 10,
Temperature sensor 16 is arranged in floating holder 8, and is contacted with subject rolling bearing,
Radially alternating load loading unit 7, the charging assembly acted on floating holder 8 by four form, each load group
Part is made of the linear motor, load loading spring 19 and connector 20 being sequentially connected successively, connector 20 and floating holder 8
The load loading spring 19 of connection, four charging assemblies is in " ten " set up of character patt ern, the telescopic direction of each load loading spring 19
Rotary shaft 10 in the radial direction, linear motor is by 18 groups of track 17 and the thrust coil being sequentially connected with track 17
At, thrust coil 18 is fixed on workbench 15, and one end of track 17 is connect with load loading spring 19, and track 17
Length direction is consistent with 19 telescopic direction of load loading spring.
The upper activity of the present embodiment divides the bottom of fixture 81 to be equipped with upper arc groove, and lower activity divides the top of fixture 82 to be equipped with down
Arc groove, upper arc groove and lower arcuate slot exist with the clamping part to match with rolling bearing, the setting of temperature sensor 16 is combined into
In upper arc groove or lower arcuate slot, and contacted with the outer ring of rolling bearing.Radially alternating load loading unit 7 is by upper load group
Part, lower charging assembly, left charging assembly and right charging assembly are constituted, and the top for dividing fixture 81 in upper activity is arranged in upper charging assembly
And the top that activity divides fixture 81 is acted on, lower charging assembly, which is arranged, to be divided the lower section of fixture 82 in lower activity and acts on lower work
The dynamic bottom for dividing fixture 82, left charging assembly are arranged in the left side of floating holder 8 and act on upper activity and divide fixture 81 and lower work
The dynamic junction for dividing fixture 82, right charging assembly be arranged the right side of floating holder 8 and act on upper activity divide fixture 81 and under
Activity divides the junction of fixture 82.
The system further includes communicating to connect respectively with driving motor 2, temperature sensor 16, torquemeter 4 and each linear motor
Computer 1 may be used in the controller connect, controller, and temperature sensor 16 and torquemeter 4 can acquire rolling bearing and operate
Signal in journey monitors the operational situation of rolling bearing, which also includes for being that examination rolling bearing and subject is respectively accompanied to roll
Bearing provides the oil supply mechanism 6 of lubricating oil, and oil supply mechanism 6 is connect with controller communication, realizes the fuel feeding to rolling bearing.
Computer (controller) controls the rotation of driving motor, drives rolling bearing with given rotation speed operation.In radial direction
In alternating load loading unit, the change of linear motor displacement is controlled by computer, and linear motor displacement changes
The stretching/compressing amount of spring can be influenced by becoming.Due to the change of the stretching/compressing amount of spring, spring can be in floating holder
Surface applies of different sizes, direction-agile active force.By adding multiple radially alternating load in floating holder different zones
The load of journal bearing alternating load may be implemented in loading unit.Computer controls rolling bearing operation process by oil supply mechanism
In oil mass supply, torquemeter and temperature sensor can be used for detecting the performance in rolling bearing operation process.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to the above embodiments, this
Field technology personnel announcement according to the present utility model, does not depart from improvement that the utility model scope is made and modification all should
It is within the protection scope of the utility model.
Claims (7)
1. a kind of rolling bearing fatigue life pilot system applying radially alternating load, for measuring rolling bearing in radial direction
Fatigue life under alternate load effect, the rolling bearing by outer ring, inner ring and by retainer be distributed in inner ring and
Multiple rolling elements composition between outer ring, which is characterized in that the system includes,
Workbench (15),
Driving motor (2) is connected on workbench (15),
Rotary shaft (10) is sequentially connected with driving motor (2), and the rotary shaft (10) is equipped with torquemeter (4),
Stationary fixture A (5) and stationary fixture B (9), is connected on workbench (15), and one is clamped in each stationary fixture and accompanies
Rolling bearing is tried,
Floating holder (8), between stationary fixture A (5) and stationary fixture B (9), by opposed upper activity divide fixture (81) and
Lower activity divides fixture (82) to form, and at least one subject rolling bearing, the subject are clamped in the floating holder (8)
Rolling bearing and examination rolling bearing coaxial arrangement is accompanied, and is set in rotary shaft (10),
Temperature sensor (16), setting contact in floating holder (8), and with subject rolling bearing,
Radially alternating load loading unit (7), the charging assembly acted on floating holder (8) by four form, each load group
Part is made of the linear motor, load loading spring (19) and connector (20) being sequentially connected successively, the connector (20)
It is connect with floating holder (8), the load loading spring (19) of four charging assemblies is in " ten " set up of character patt ern, and each load loads bullet
The telescopic direction of spring (19) rotary shaft (10) in the radial direction, the linear motor is by track (17) and and track
(17) thrust coil (18) composition being sequentially connected, the thrust coil (18) are fixed on workbench (15), track
(17) one end is connect with load loading spring (19), and the length direction of track (17) and load loading spring (19) are flexible
Direction is consistent.
2. the rolling bearing fatigue life pilot system according to claim 1 for applying radially alternating load, feature
It is, two subject rolling bearings is clamped in the floating holder (8).
3. the rolling bearing fatigue life pilot system according to claim 1 for applying radially alternating load, feature
It is, the upper activity divides the bottom of fixture (81) to be equipped with upper arc groove, and the lower activity, which divides at the top of fixture (82), to be set
There are lower arcuate slot, upper arc groove and lower arcuate slot with the clamping part to match with rolling bearing is combined into, described is radially alternating
Load loading unit (7) is made of upper charging assembly, lower charging assembly, left charging assembly and right charging assembly, it is described upper plus
Component setting is carried to divide the top of fixture (81) in upper activity and act on the top that upper activity divides fixture (81), the lower load
Component setting divides the lower section of fixture (82) in lower activity and acts on the bottom that lower activity divides fixture (82), the left load group
Part is arranged in the left side of floating holder (8) and acts on the junction that upper activity divides fixture (81) and lower activity divides fixture (82),
The described right charging assembly setting is on the right side of floating holder (8) and acts on upper activity fixture (81) and lower activity is divided to divide fixture
(82) junction.
4. the rolling bearing fatigue life pilot system according to claim 3 for applying radially alternating load, feature
It is, the temperature sensor (16) setting contacts in upper arc groove or lower arcuate slot, and with the outer ring of rolling bearing.
5. the rolling bearing fatigue life pilot system according to claim 1 for applying radially alternating load, feature
It is, the rotary shaft (10) is sequentially connected by shaft coupling (3) and driving motor (2).
6. the rolling bearing fatigue life pilot system according to claim 1 for applying radially alternating load, feature
It is, which further includes communicating to connect respectively with driving motor (2), temperature sensor (16), torquemeter (4) and linear motor
The controller connect.
7. the rolling bearing fatigue life pilot system according to claim 6 for applying radially alternating load, feature
Be, the system further include for providing the oil supply mechanism (6) of lubricating oil to accompany examination rolling bearing and being tested rolling bearing, it is described
Oil supply mechanism (6) connect with controller communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877043.3U CN208091696U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing fatigue life pilot system of radially alternating load can be applied |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877043.3U CN208091696U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing fatigue life pilot system of radially alternating load can be applied |
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| Publication Number | Publication Date |
|---|---|
| CN208091696U true CN208091696U (en) | 2018-11-13 |
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|---|---|---|---|
| CN201721877043.3U Expired - Fee Related CN208091696U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing fatigue life pilot system of radially alternating load can be applied |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357867A (en) * | 2018-12-21 | 2019-02-19 | 北京工业大学 | A kind of RV retarder fatigue life test radial loading device |
| CN110031220A (en) * | 2019-03-21 | 2019-07-19 | 佛山衡生医疗自动化有限公司 | A kind of multifunction bearing test machine radial loading device |
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
-
2017
- 2017-12-28 CN CN201721877043.3U patent/CN208091696U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357867A (en) * | 2018-12-21 | 2019-02-19 | 北京工业大学 | A kind of RV retarder fatigue life test radial loading device |
| CN110031220A (en) * | 2019-03-21 | 2019-07-19 | 佛山衡生医疗自动化有限公司 | A kind of multifunction bearing test machine radial loading device |
| CN110031220B (en) * | 2019-03-21 | 2024-05-03 | 烟台大学 | Radial loading device of multifunctional bearing testing machine |
| CN110165838A (en) * | 2019-04-11 | 2019-08-23 | 广东省智能制造研究所 | A kind of moment of elasticity control device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20201228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |