CN108036944A - Conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load - Google Patents
Conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load Download PDFInfo
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- CN108036944A CN108036944A CN201711457209.0A CN201711457209A CN108036944A CN 108036944 A CN108036944 A CN 108036944A CN 201711457209 A CN201711457209 A CN 201711457209A CN 108036944 A CN108036944 A CN 108036944A
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- rolling bearing
- conveyer belt
- fixture
- alternating load
- radially alternating
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- 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
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to the rolling bearing fatigue life pilot system that a kind of conveyer belt loads radially alternating load, the system controls the rotation of driving motor by computer, rolling bearing is driven with given rotation speed operation, in the radially alternating load loading unit of V belt translation is transmitted, the rotary motion of electric rotating machine is converted into linear motion by transmitting tape handler, it can influence the stretching/compressing amount of spring, 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, the loading of bearing alternate load can be realized by adding multiple transmission radially alternating load loading units of V belt translation in floating holder different zones, torquemeter and temperature sensor are used for detecting the performance in rolling bearing operation process.Compared with prior art, the present invention can accurately realize the loading of the radially alternating load of rolling bearing, with reference to the real working condition condition of internal combustion engine, carry out rolling bearing fatigue life test.
Description
Technical field
The invention belongs to engine rolling bearing life to test field, is related to a kind of conveyer belt and loads 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, it occupies very important status 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 one of the most key 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.
At present, car engine main bearing, camshaft bearing and connecting rod bottom-end bearing are few mainly using sliding bearing
The camshaft bearing of number engine employs 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
Hold, thus bearing element chemical conversion is for an important trial of engine antifriction consumption reduction.
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 loading load of test bearing is as axis
The important parameter of testing machine test is held, its accuracy directly affects the result of the test of bearing.Rolling bearing experiment traditional at present
System loads characteristic is single, it is impossible to realize the loading of more varying loads, 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.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of conveyer belt loads footpath
To the rolling bearing fatigue life pilot system of alternate load.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load, for measuring rolling bearing
Fatigue life under the effect of radially alternating load, the rolling bearing are distributed in by outer ring, inner ring and by retainer
Multiple rolling elements composition between inner ring and outer ring, the system include,
Workbench,
Motor is driven, is connected on workbench,
Rotation axis, is sequentially connected with driving motor, and the rotation axis is equipped with torquemeter,
Stationary fixture A and stationary fixture B, is connected on workbench, and one is clamped in each stationary fixture and accompanies examination to roll
Bearing,
Floating holder, between stationary fixture A and stationary fixture B, divides fixture and lower activity point by opposed upper activity
Fixture forms, and is clamped with 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,
The radially alternating load loading unit of V belt translation is transmitted, is made of four charging assemblies acted on floating holder,
Each charging assembly is made of electric rotating machine, transmission tape handler, load loading spring and the connector being sequentially connected successively, institute
The connector stated is connected with floating holder, and the load loading spring of four charging assemblies is in " ten " set up of character patt ern, and each load adds
The telescopic direction of spring is carried on direction, the transmission tape handler is by conveyer belt, sliding block, cunning radially of the axis of rotation
Rail, guide rod composition, the conveyer belt and electric rotating machine are sequentially connected, and the inner side of conveyer belt is in dentation, the slide
It is connected between the driving wheel of conveyer belt and driven wheel, the sliding block is by slider body, the bilateral being arranged in slider body
Rack and the gear-rack drive for promoting double sided rack to stretch out from the side of slider body and engaged with conveyer belt inner side, institute
The slider body stated is threaded through on slide and is slidably connected with slide, guide rod connection sliding block body, other end connection load
Loading spring.
Preferably, the gear-rack drive is hydraulic cylinder or cylinder, in slider body.
Preferably, the double sided rack holding tank through slider body is equipped with the slider body, double sided rack accommodates
The opening at groove both ends is located at the both sides of slider body respectively, and the double sided rack is located in double sided rack holding tank.
Preferably, two subject rolling bearings are clamped with 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 match somebody with somebody the clamping part for being combined into and matching with rolling bearing, the conveyer belt
It is driven radially alternating load loading unit to be made of upper charging assembly, lower charging assembly, left charging assembly and right charging assembly, institute
The upper charging assembly stated is arranged on activity and divides the top of fixture and act on the top that activity divides fixture, the lower loading
Component is arranged on lower activity and divides the lower section of fixture and act on the bottom that lower activity divides fixture, and the left charging assembly is arranged on
The left side of floating holder simultaneously acts on the junction that activity divides fixture and lower activity divides fixture, and the right charging assembly is set
The right side of floating holder and act on activity divide fixture and lower activity to divide the junction of fixture.
Preferably, the temperature sensor is arranged in arc groove or lower arcuate slot, and with the outer ring of rolling bearing
Contact.
Preferably, the rotation axis is sequentially connected by shaft coupling and driving motor.
Preferably, which further includes connects with driving motor, temperature sensor, torquemeter and electric rotating machine communication respectively
The controller connect.
Preferably, which further includes for providing the confession oil machine of lubricating oil to accompany examination rolling bearing and being tested rolling bearing
Structure, the oil supply mechanism are connected with controller communication.
The present invention operation principle be：
The rotation of computer control driving motor, drives rolling bearing with given rotation speed operation.In transmission V belt translation footpath
Into alternate load loading unit, the rotation of electric rotating machine is controlled by computer, will be revolved by transmitting tape handler
The rotary motion of rotating motor is converted to linear motion, can influence the stretching/compressing amount of spring.Due to the stretching/compressing of spring
The change of amount, spring will can apply of different sizes, direction-agile active force on floating holder surface.By in floating holder
The multiple transmission radially alternating load loading units of V belt translation of different zones addition can realize the loading of bearing alternate load.Calculate
Machine controls the oil mass in rolling bearing operation process to supply by oil supply mechanism, and torquemeter and temperature sensor can be used for detecting
Performance in rolling bearing operation process.
Compared with prior art, the invention has the advantages that：
(1) rotation angle of electric rotating machine is controlled by computer (controller), and then changes compression/stretching of spring
Amount, controls the elastic force of spring, it is possible to achieve the loading of the alternate load of rolling bearing in radial directions.
(2) the real working condition condition of internal combustion engine is combined, rotation angle and the time of electric rotating machine are controlled by computer
Variable quantity, it is possible to achieve the loading of internal combustion engine real working condition load.Contribute to carry out the rolling of engine dynamic load using the test system
Dynamic bearing fatigue life test.
(3) be in using medial surface dentalation conveyer belt, coordinate to be arranged in slider body and can be from sliding block
The double sided rack that the side of body is stretched out, drives slide block movement, by converting the contact side of double sided rack and conveyer belt, Ke Yi
The loading of alternate load is realized on one direction of transfer of conveyer belt.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the schematic diagram of the transmission radially alternating load loading unit of V belt translation of the present invention；
Fig. 3 is the schematic diagram of the transmission tape handler of the present invention；
Fig. 4 is the operation principle schematic diagram of the transmission tape handler of the present invention.
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 for oil machine
Structure, 7 be the transmission radially alternating load loading unit of V belt translation, and 8 be floating holder, and 81 divide fixture for upper activity, and 82 be lower activity
Divide fixture, 9 be stationary fixture B, and 10 be rotation axis, and 11 is accompany examination rolling bearing B, and 12 is are tested rolling bearing B, and 13 be subject rolling
Dynamic bearing A, 14 is accompany examination rolling bearing A, and 15 be workbench, and 16 be temperature sensor, and 17 be electric rotating machine, and 18 be conveyer belt
Transmission mechanism, 181 be conveyer belt, and 182 be slider body, and 183 be slide, and 184 be guide rod, and 185 be double sided rack, and 186 be tooth
Bar driver, 19 be load loading spring, and 20 be connector.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load, as shown in Figures 1 to 3, uses
In fatigue life of the measure rolling bearing under the effect of radially alternating load, rolling bearing is by outer ring, inner ring and passes through holding
Frame is distributed in multiple rolling elements composition between inner ring and outer ring, which includes,
Workbench 15,
Motor 2 is driven, is connected on workbench 15,
Rotation axis 10, is sequentially connected with driving motor 2, is sequentially connected, rotates preferably by shaft coupling 3 and driving motor 2
Axis 10 is equipped with torquemeter 4,
Stationary fixture A5 and stationary fixture B9, is connected on workbench 15, is clamped with stationary fixture A5 and accompanies examination to roll
It is clamped with bearing A14, stationary fixture B9 and accompanies examination rolling bearing B11, accompanies examination rolling bearing A 14 with accompanying examination rolling bearing B 11
Play the role of supporting rotation axis 10,
Floating holder 8, between stationary fixture A5 and stationary fixture B9, divides fixture 81 He by upper activity opposed up and down
Lower activity divides fixture 82 to form, and at least one subject rolling bearing is clamped with floating holder 8, two are clamped with the present embodiment
Rolling bearing is tested, is respectively tested rolling bearing A13 and subject rolling bearing B12, rolling bearing is tested and accompanies the examination axis of rolling
Hold and be coaxially disposed, and be set in rotation axis 10,
Temperature sensor 16, is arranged in floating holder 8, and is contacted with subject rolling bearing,
The radially alternating load loading unit 7 of V belt translation is transmitted, is made of four charging assemblies acted on floating holder,
Each charging assembly is by the electric rotating machine 17, transmission tape handler 18, load loading spring 19 and connector that are sequentially connected successively
20 compositions, connector 20 are connected with floating holder 8, and the load loading spring 19 of four charging assemblies is in " ten " set up of character patt ern, often
In rotation axis 10 in the radial direction, transmission tape handler 18 is by conveyer belt for the telescopic direction of a load loading spring 19
181st, sliding block, slide 183, guide rod 184 form, and conveyer belt 181 is sequentially connected with electric rotating machine 17, and conveyer belt 181 is interior
Side is in dentation, and slide 183 is connected between the driving wheel and driven wheel of conveyer belt 181, sliding block by slider body 182, be arranged on
Double sided rack 185 in slider body 182 and for promote double sided rack 185 stretched out from the side of slider body 182 and with
The gear-rack drive 186 of the inner side of conveyer belt 181 engagement, slider body 182, which is threaded through on slide 183 and is slided with slide 183, to be connected
Connect, 184 one end connection sliding block body 182 of guide rod, other end connection load loading spring 19.Slider body in the present embodiment
The double sided rack holding tank through slider body 182 is equipped with 182, the opening at double sided rack holding tank both ends is located at sliding block respectively
The both sides of body 182, double sided rack 185 are located in double sided rack holding tank, and gear-rack drive 186 is hydraulic cylinder or cylinder, if
In in slider body 182.As shown in figure 4, when gear-rack drive 186 drives the lateral movement to the left of double sided rack 185, the rack in left side
When being meshed with the inner side of conveyer belt 181 in left side, conveyer belt 181 drives slider body 182 to be moved upwards along slide 183, leads
The movement upwards therewith of bar 184, when moving upward to, gear-rack drive 186 drives double sided rack 185 to move right, right side
Rack and right side conveyer belt on the inside of when being meshed, conveyer belt 181 drives slider body 182 to be moved downward along slide 183,
Guide rod 184 moves downward therewith, moves in circles, and realizes the loading of alternate load, when needing to adjust the size of alternate load, only
Need the time combined by adjusting conveyer belt rotating speed or side rack with conveyer belt.
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 match somebody with somebody the clamping part for being combined into and matching with rolling bearing, and temperature sensor 16 is arranged on
In upper arc groove or lower arcuate slot, and contacted with the outer ring of rolling bearing.Transmit the radially alternating load loading unit of V belt translation by
Upper charging assembly, lower charging assembly, left charging assembly and right charging assembly are formed, and upper charging assembly is arranged on activity and divides fixture
81 top simultaneously acts on the top that activity divides fixture 81, and lower charging assembly is arranged on lower section and work that lower activity divides fixture 82
Divide the bottom of fixture 82 for lower activity, left charging assembly, which is arranged on the left side of floating holder 8 and acts on activity, divides fixture
81 and lower activity divide the junction of fixture 82, right charging assembly is arranged on the right side of floating holder 8 and acts on activity point folder
Tool 81 and lower activity divide the junction of fixture 82.
The system further includes to be connected with driving motor 2, temperature sensor 16, torquemeter 4 and the communication of each electric rotating machine respectively
The controller connect, controller can use computer 1, and temperature sensor 16 and torquemeter 4 can gather rolling bearing and operate
Signal in journey, monitors the operational situation of rolling bearing, which, which also includes, is used for respectively to accompany examination rolling bearing and subject to roll
Bearing provides the oil supply mechanism 6 of lubricating oil, and oil supply mechanism 6 is connected with controller communication, realizes the fuel feeding to rolling bearing.
The rotation of computer control driving motor, drives rolling bearing with given rotation speed operation.In transmission V belt translation footpath
Into alternate load loading unit, the rotation of electric rotating machine is controlled by computer, will be revolved by transmitting tape handler
The rotary motion of rotating motor is converted to linear motion, can influence the stretching/compressing amount of spring.Due to the stretching/compressing of spring
The change of amount, spring will can apply of different sizes, direction-agile active force on floating holder surface.By in floating holder
The multiple transmission radially alternating load loading units of V belt translation of different zones addition can realize the loading of bearing alternate load.Calculate
Machine controls the oil mass in rolling bearing operation process to supply by oil supply mechanism, and torquemeter and temperature sensor can be used for detecting
Performance in rolling bearing operation process.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.It is ripe
Knowing the personnel of art technology obviously easily can make these embodiments various modifications, and described herein general former
It ought to use in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, this area
Technical staff discloses according to the present invention, does not depart from improvement that scope made and modification all should be in the guarantor of the present invention
Within the scope of shield.
Claims (9)
1. a kind of conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load, exist for measuring rolling bearing
Fatigue life under radially alternating load effect, the rolling bearing are distributed in interior by outer ring, inner ring and by retainer
Multiple rolling elements composition between circle and outer ring, it is characterised in that the system includes,
Workbench (15),
Motor (2) is driven, is connected on workbench (15),
Rotation axis (10), is sequentially connected with driving motor (2), and the rotation axis (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 is accompanied
Try rolling bearing,
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 with the floating holder (8)
Rolling bearing and accompany examination rolling bearing to be coaxially disposed, and be set in rotation axis (10),
Temperature sensor (16), is arranged in floating holder (8), and is contacted with subject rolling bearing,
The radially alternating load loading unit (7) of V belt translation is transmitted, is made of four charging assemblies acted on floating holder, respectively
Charging assembly by be sequentially connected successively electric rotating machine (17), transmission tape handler (18), load loading spring (19) and even
Device (20) composition is connect, the connector (20) is connected with floating holder (8), the load loading spring (19) of four charging assemblies
In " ten " set up of character patt ern, the telescopic direction of each load loading spring (19) in rotation axis (10) in the radial direction, it is described
Transmission tape handler (18) be made of conveyer belt (181), sliding block, slide (183), guide rod (184), the conveyer belt
(181) it is sequentially connected with electric rotating machine (17), and the inner side of conveyer belt (181) is in dentation, and the slide (183) is connected to
Between the driving wheel and driven wheel of conveyer belt (181), the sliding block by slider body (182), be arranged on slider body (182)
Interior double sided rack (185) and for promoting double sided rack (185) to be stretched out from the side of slider body (182) and and conveyer belt
(181) gear-rack drive (186) of inner side engagement, the slider body (182) is threaded through on slide (183) and and slide
(183) it is slidably connected, guide rod (184) one end connection sliding block body (182), other end connection load loading spring (19).
2. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, the gear-rack drive (186) is hydraulic cylinder or cylinder, in slider body (182).
3. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, the double sided rack holding tank through slider body (182), double sided rack is equipped with the slider body (182)
The opening at holding tank both ends is located at the both sides of slider body (182) respectively, and the double sided rack (185) is located at double sided rack appearance
Receive in groove.
4. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, two subject rolling bearings is clamped with the floating holder (8).
5. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, the upper activity divides the bottom of fixture (81) to be equipped with upper arc groove, and the lower activity divides the top of fixture (82)
Portion is equipped with lower arcuate slot, and upper arc groove and lower arcuate slot match somebody with somebody the clamping part for being combined into and matching with rolling bearing, the transmission
The radially alternating load loading unit (7) of V belt translation is by upper charging assembly, lower charging assembly, left charging assembly and right charging assembly structure
Into the upper charging assembly is arranged on activity and divides the top of fixture (81) and act on the top that activity divides fixture (81)
Portion, the lower charging assembly are arranged on lower activity and divide the lower section of fixture (82) and act on the bottom that lower activity divides fixture (82)
Portion, the left charging assembly, which is arranged on the left side of floating holder (8) and acts on activity, divides fixture (81) and lower activity point
The junction of fixture (82), the right charging assembly, which is arranged on the right side of floating holder (8) and acts on activity, divides fixture
(81) and lower activity divides the junctions of fixture (82).
6. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, the temperature sensor (16) is arranged in arc groove or lower arcuate slot, and is connect with the outer ring of rolling bearing
Touch.
7. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, the rotation axis (10) is sequentially connected by shaft coupling (3) and driving motor (2).
8. conveyer belt according to claim 1 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, which further includes respectively with driving motor (2), temperature sensor (16), torquemeter (4) and electric rotating machine
(17) controller of communication connection.
9. conveyer belt according to claim 8 loads the rolling bearing fatigue life pilot system of radially alternating load, its
It is characterized in that, which further includes for providing the oil supply mechanism (6) of lubricating oil to accompany examination rolling bearing and being tested rolling bearing,
The oil supply mechanism (6) is connected with controller communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457209.0A CN108036944A (en) | 2017-12-28 | 2017-12-28 | Conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457209.0A CN108036944A (en) | 2017-12-28 | 2017-12-28 | Conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036944A true CN108036944A (en) | 2018-05-15 |
Family
ID=62098186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711457209.0A Withdrawn CN108036944A (en) | 2017-12-28 | 2017-12-28 | Conveyer belt loads the rolling bearing fatigue life pilot system of radially alternating load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036944A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470476A (en) * | 2019-01-14 | 2019-03-15 | 扬州大学 | A kind of torsional fatigue test devices and methods therefor of vibration-reduction gear |
| CN109799089A (en) * | 2019-01-28 | 2019-05-24 | 太原科技大学 | A kind of hydraulic fatigue test device and method |
| CN113567102A (en) * | 2021-07-29 | 2021-10-29 | 泰州市祥泰设备配套有限公司 | Fatigue detection equipment for hoisting belt |
-
2017
- 2017-12-28 CN CN201711457209.0A patent/CN108036944A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470476A (en) * | 2019-01-14 | 2019-03-15 | 扬州大学 | A kind of torsional fatigue test devices and methods therefor of vibration-reduction gear |
| CN109470476B (en) * | 2019-01-14 | 2023-06-27 | 扬州大学 | Torsional fatigue test device and method for vibration reduction gear |
| CN109799089A (en) * | 2019-01-28 | 2019-05-24 | 太原科技大学 | A kind of hydraulic fatigue test device and method |
| CN113567102A (en) * | 2021-07-29 | 2021-10-29 | 泰州市祥泰设备配套有限公司 | Fatigue detection equipment for hoisting belt |
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Application publication date: 20180515 |
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