CN207866493U - The rolling bearing performance experimental rig for loading alternating load based on crank connecting link - Google Patents
The rolling bearing performance experimental rig for loading alternating load based on crank connecting link Download PDFInfo
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- CN207866493U CN207866493U CN201721874357.8U CN201721874357U CN207866493U CN 207866493 U CN207866493 U CN 207866493U CN 201721874357 U CN201721874357 U CN 201721874357U CN 207866493 U CN207866493 U CN 207866493U
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- fixture block
- rolling bearing
- crank
- rotary shaft
- electric rotating
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Abstract
The utility model is related to the rolling bearing performance experimental rigs for loading alternating load based on crank connecting link, device includes workbench, rotary shaft supporting mechanism, rotary shaft, driving motor and alternating load loading unit, the alternating load loading unit includes fixture block component, the first electric rotating machine and the second electric rotating machine, it is equipped with the first crank connecting link between first electric rotating machine and fixture block component and is driven load maintainer, the second crank connecting link is equipped between the second electric rotating machine and fixture block component and is driven load maintainer.Compared with prior art, the first electric rotating machine, the second electric rotating machine can be driven load maintainer by the first crank connecting link respectively in the utility model, the second crank connecting link is driven load maintainer and loads alternating load to the rolling bearing in fixture block component, to simulate the real working condition condition of dynamic load rolling bearing in internal combustion engine, the accurate and reliable of rolling bearing performance test result ensure that.
Description
Technical field
The utility model belongs to technical field of internal combustion engines, is related to the axis of rolling for loading alternating load based on crank connecting link
Hold performance test apparatus.
Background technology
Internal combustion engine has been widely used in automobile, ship, aircraft, tank, railway locomotive, agriculture machine as power-equipment
Multiple industries such as tool, engineering machinery, generating set, play a very important role in national economy.Include in internal combustion engine
Piston-cylinder liner, piston ring-cylinder liner, bent axle-bearing and cam-tappet etc. are several to important friction pair, wherein bent axle-bearing packet
It includes base bearing and the connecting-rod bearing (since the size and Orientation of such bearing working load all changes over time, is thus generically referred to as
Dynamic loading bearing), 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 durable
Property, also affect the potentiality that internal combustion engine is further strengthened.
Currently, car engine main bearing, camshaft bearing and connecting rod bottom-end bearing mainly use sliding bearing, and it is a small number of
The camshaft bearing of engine uses rolling bearing.According to tribology theory, energy loss of the rolling friction than sliding friction
Small an order of magnitude or so is wanted, under identical working condition, the friction loss of rolling bearing is much smaller than sliding bearing, therefore,
The important trial that bearing element chemical conversion lowers consumption for engine antifriction.
The performance and its reliability of rolling bearing are the most important performance indicators of rolling bearing, but due to influencing bearing performance
Factor it is too many, carry out rolling bearing performance experiment be a kind of effective way.Bearing test is in design bearing and manufacturing process
Essential and basic important verification process, wherein the important parameter that the load load of test bearing is tested as bearing tester,
Accuracy directly affects the result of bearing test.Rolling bearing experimental rig loading characteristic traditional at present is single, cannot carry out
The load of changeable load, and dynamic load rolling bearing often works in alternating load in true internal combustion engine, therefore traditional rolling
Bearing performance experimental rig can not carry out the experiment of internal combustion engine dynamic load rolling bearing.
Utility model content
The purpose of this utility model is exactly to be provided a kind of based on crank to overcome the problems of the above-mentioned prior art
The rolling bearing performance experimental rig for loading alternating load of connecting rod.
The purpose of this utility model can be achieved through the following technical solutions：
The rolling bearing performance experimental rig for loading alternating load based on crank connecting link, rolling bearing includes in bearing
The bearing outer ring that enclose, is set in outside bearing inner race, the retainer being arranged between bearing outer ring and bearing inner race and multiple
Along the uniformly distributed rolling element on retainer of the circumferential direction of bearing inner race, the device includes workbench, is arranged in workbench
On rotary shaft supporting mechanism, in the horizontal direction run through rotary shaft supporting mechanism rotary shaft, setting on the table and with rotation
Driving motor that one end of shaft is sequentially connected and setting are on the table and alternating load compatible with rotary shaft loads
Unit, the alternating load loading unit include the fixture block component being set in outside rotary shaft and are arranged on the table and distinguish
The first electric rotating machine and the second electric rotating machine positioned at fixture block component both sides；Between first electric rotating machine and fixture block component
It is driven load maintainer equipped with the first crank connecting link, first crank connecting link transmission load maintainer includes being driven with the first electric rotating machine
First crank rod assembly of connection and the first spring loads being arranged between the first crank rod assembly and fixture block component
Component, first crank rod assembly include one end be set on the output shaft of the first electric rotating machine the first crank, set
Set the first crank other end first connecting rod, be arranged the first piston of first connecting rod one end and setting on the table simultaneously
The first guide cylinder compatible with first piston；The second crank connecting link is equipped between second electric rotating machine and fixture block component
It is driven load maintainer, second crank connecting link transmission load maintainer includes that the second crank being sequentially connected with the second electric rotating machine connects
Bar assembly and the second spring charging assembly being arranged between the second crank rod assembly and fixture block component, described second is bent
Handle link assembly include one end be set on the output shaft of the second electric rotating machine the second crank, be arranged in the second crank other end
Second connecting rod, be arranged second connecting rod one end second piston and setting it is on the table and compatible with second piston
Second guide cylinder.First electric rotating machine drives the rotation of the first crank, and then drives first connecting rod movement, in leading for the first guide cylinder
To under effect, first piston moves back and forth；Second electric rotating machine drives the rotation of the second crank, and then drives second connecting rod movement,
Under the guiding role of the second guide cylinder, second piston moves back and forth.Between rolling bearing to be tested is placed in fixture block component,
And it is arranged on the rotary shaft；Driving motor drives rotary shaft rotation, and the first electric rotating machine, the second electric rotating machine pass through first respectively
Piston, second piston drive the first spring loads component, second spring charging assembly to apply active force, Jin Ershi to fixture block component
Now to the load of rolling bearing alternating load.
In rolling bearing, circumferential direction of the rolling element by retainer along bearing inner race is evenly distributed in bearing inner race and bearing
Between outer ring.
Further, the rotary shaft supporting mechanism includes being set up in parallel the first support component on the table,
Two support components, the rotary shaft run through the first support component and the second support component in the horizontal direction.First support component
And second support component rotary shaft can be supported.
Further, first support component includes setting first bearing seat on the table and setting the
On one bearing block and the first auxiliary bearing for being set in outside rotary shaft, second support component include being arranged in workbench
On second bearing seat and be arranged in second bearing seat and be set in the second auxiliary bearing outside rotary shaft.First auxiliary
Bearing and the second auxiliary bearing are arranged on the rotary shaft side by side, are supported to rotary shaft.
Further, first auxiliary bearing and the second auxiliary bearing are rolling bearing.
Further, the fixture block component includes the first fixture block and the second fixture block being oppositely arranged, the described first folder
Rolling bearing installation cavity is equipped between block and the second fixture block.When experiment, rolling bearing to be tested is placed in the first fixture block and
Between two fixture blocks.
Further, temperature sensor is equipped in first fixture block.
Further, the first spring loads component includes first be arranged between first piston and the first fixture block
Spring, the first piston link block being arranged between one end and first piston of the first spring and it is arranged in the another of the first spring
The first fixture block link block between one end and the first fixture block；The second spring charging assembly include setting second piston with
Second spring between second fixture block, the second piston link block being arranged between one end and second piston of second spring and
The second fixture block link block between the other end and the second fixture block of second spring is set.First electric rotating machine drives first piston
It moves back and forth, and then makes the first spring that stretching or compressive deformation occur, and rolling bearing to be tested is applied by the first fixture block
Add loading force；Second electric rotating machine drives second piston to move back and forth, and then makes second spring that stretching or compressive deformation occur, and
Loading force is applied to rolling bearing to be tested by the second fixture block.
Further, it is equipped with shaft coupling between the driving motor and rotary shaft, and passes through shaft coupling and rotary shaft
One end is sequentially connected.Driving motor is connected by shaft coupling with rotary shaft, and rotary shaft is driven to rotate.
Further, the workbench is equipped with torquemeter compatible with rotary shaft.
Further, the device further includes computer.Computer respectively with driving motor, the first electric rotating machine and
Two electric rotating machines are electrically connected, to control corresponding component.Computer controls driving motor rotation, makes the axis of rolling to be tested
Holding can be with scheduled rotary speed working.In addition, torquemeter and temperature sensor can acquire the axis of rolling also with calculating mechatronics
The signal in operation process is held, the operational situation of rolling bearing is monitored.
The device further includes oil supply system as a preferred technical solution,.Oil supply system and calculating mechatronics, meter
Calculation machine controls the fuel feeding that oil supply system realizes rolling bearing.
As a preferred technical solution, the oil supply system include fuel tank, constant displacement pump, filter, pressure sensor and
Flowmeter.The oil-feed port of fuel tank is sequentially connected constant displacement pump, filter by oil feed line, and pressure sensor and flowmeter setting exist
On oil feed line, fuel tank is rolling bearing fuel feeding by oil feed line.
The utility model in practical application, rolling bearing to be tested is placed between the first fixture block and the second fixture block,
And it is arranged on the rotary shaft；Computer controls driving motor rotation, makes rolling bearing with scheduled rotation speed operation；Pass through computer
The rotation angle of the first electric rotating machine and the second electric rotating machine is controlled, and then controls stretching/pressure of the first spring and second spring
Contracting amount, due to the change of the first spring and the stretching/compressing amount of second spring, the first spring and second spring are respectively in the first folder
Block, the second fixture block surface apply of different sizes, direction-agile active force, and then realize the load of rolling bearing alternating load.
Meanwhile computer controls the oil mass in rolling bearing operation process by oil supply system and supplies, torquemeter and temperature sensor energy
Enough detect the performance in rolling bearing operation process.
Wherein, multiple rolling bearings can be placed between the first fixture block and the second fixture block simultaneously, are realized to multiple rolling bearings
While test.
Compared with prior art, the utility model has the characteristics that：
1) the first electric rotating machine, the second electric rotating machine can be driven load maintainer, second by the first crank connecting link respectively
Crank connecting link is driven load maintainer and loads alternating load to the rolling bearing in fixture block component, is rolled with simulating dynamic load in internal combustion engine
The real working condition condition of bearing, ensure that the accurate and reliable of rolling bearing performance test result；
2) rotation angle and time variation amount that the first electric rotating machine, the second electric rotating machine are controlled by computer, by the
One electric rotating machine, the second electric rotating machine convert rotational motion be first piston, second piston linear motion, to change first
The amount of tension or decrement of spring, second spring, and then the elastic force of the first spring of control, second spring, realize that rolling bearing is handed over
The load of varying load.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of alternating load loading unit in the utility model；
Description of symbols in figure：
1-computer, 2-driving motors, 3-shaft couplings, 4-torquemeters, 5-first bearing seats, 6-oil supply systems,
7-alternating load loading units, the 8-the first fixture block, 9-second bearing seats, 10-rotary shafts, the 11-the second auxiliary bearing,
12-rolling bearings, the 13-the second fixture block, the 14-the first auxiliary bearing, 15-workbench, 16-temperature sensors, 17-the first
Electric rotating machine, 18-first piston link blocks, the 19-the first spring, the 20-the first fixture block link block, the connection of the 21-the second fixture block
Block, 22-second springs, 23-second piston link blocks, the 24-the second electric rotating machine, the 25-the first crank, 26-the first connect
Bar, 27-first pistons, the 28-the first guide cylinder, the 29-the second crank, 30-second connecting rods, 31-second pistons, 32-the
Two guide cylinders.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, gives detailed embodiment and specific operating process, but the guarantor of the utility model
Shield range is not limited to following embodiments.
Embodiment：
The rolling bearing performance experimental rig for loading alternating load based on crank connecting link as shown in Figure 1, the axis of rolling
Hold 12 include bearing inner race, be set in outside bearing inner race bearing outer ring, be arranged between bearing outer ring and bearing inner race
Retainer and the uniformly distributed rolling element on retainer of multiple circumferential directions along bearing inner race, device include workbench 15, set
Set rotary shaft supporting mechanism on workbench 15, the rotary shaft 10 for running through rotary shaft supporting mechanism in the horizontal direction, setting exist
On workbench 15 and with one end of rotary shaft 10 be sequentially connected driving motor 2 and be arranged on workbench 15 and and rotary shaft
10 compatible alternating load loading units 7, as shown in Fig. 2, alternating load loading unit 7 includes being set in outside rotary shaft 10
Fixture block component and be arranged on workbench 15 and be located at fixture block component both sides the first electric rotating machine 17 and second rotation
Rotating motor 24；It is equipped with the first crank connecting link between first electric rotating machine 17 and fixture block component and is driven load maintainer, first crank
Link transmission load maintainer includes the first crank rod assembly being sequentially connected with the first electric rotating machine 17 and is arranged first
The first spring loads component between crank rod assembly and fixture block component, the first crank rod assembly include that one end is set in
The first crank 25 on the output shaft of one electric rotating machine 17 is arranged and exists in the first connecting rod 26 of 25 other end of the first crank, setting
The first piston 27 of 26 one end of first connecting rod and it is arranged on workbench 15 and compatible with first piston 27 first is oriented to
Cylinder 28；It is equipped with the second crank connecting link between second electric rotating machine 24 and fixture block component and is driven load maintainer, second crank connecting link
Transmission load maintainer includes the second crank rod assembly being sequentially connected with the second electric rotating machine 24 and is arranged in the second crank
Second spring charging assembly between link assembly and fixture block component, the second crank rod assembly include that one end is set in the second rotation
The second crank 29 on the output shaft of rotating motor 24, be arranged 29 other end of the second crank second connecting rod 30, be arranged second
The second piston 31 of 30 one end of connecting rod and it is arranged on workbench 15 and second guide cylinder 32 compatible with second piston 31.
Wherein, rotary shaft supporting mechanism includes the first support component being disposed in parallel on workbench 15, the second support group
Part, rotary shaft 10 run through the first support component and the second support component in the horizontal direction.First support component includes being arranged in work
Make the first bearing seat 5 on platform 15 and is arranged in first bearing seat 5 and is set in the first asessory shaft outside rotary shaft 10
14 are held, the second support component includes the second bearing seat 9 being arranged on workbench 15 and is arranged in second bearing seat 9 and covers
The second auxiliary bearing 11 being located at outside rotary shaft 10.First auxiliary bearing 14 and the second auxiliary bearing 11 are rolling bearing.
Fixture block component includes the first fixture block 8 and the second fixture block 13 being oppositely arranged, between the first fixture block 8 and the second fixture block 13
Equipped with rolling bearing installation cavity.It is equipped with temperature sensor 16 in first fixture block 8.
First spring loads component includes the first spring 19 being arranged between first piston 27 and the first fixture block 8, setting
First piston link block 18 between one end and first piston 27 of the first spring 19 and it is arranged in the another of the first spring 19
The first fixture block link block 20 between one end and the first fixture block 8；Second spring charging assembly include setting second piston 31 with
Second spring 22 between second fixture block 13, the second piston being arranged between one end of second spring 22 and second piston 31 connect
The the second fixture block link block 21 for connecing block 23 and being arranged between the other end and the second fixture block 13 of second spring 22.
It is equipped with shaft coupling 3 between driving motor 2 and rotary shaft 10, and is driven by one end of shaft coupling 3 and rotary shaft 10
Connection.Workbench 15 is equipped with torquemeter compatible with rotary shaft 10 4.
Device further includes computer 1 and oil supply system 6.
In practical application, 2 rolling bearings 12 to be tested are placed between the first fixture block 8 and the second fixture block 13, and
It is set in rotary shaft 10；Computer 1 controls driving motor 2 and rotates, and makes rolling bearing 12 with scheduled rotation speed operation；Pass through meter
Calculation machine 1 controls the rotation angle of the first electric rotating machine 17 and the second electric rotating machine 24, and then controls the first spring 19 and the second bullet
The stretching/compressing amount of spring 22, due to the change of the first spring 19 and the stretching/compressing amount of second spring 22, the first spring 19 and
Second spring 22 applies of different sizes, direction-agile active force, Jin Ershi on the first fixture block 8,13 surface of the second fixture block respectively
The load of 12 alternating load of existing rolling bearing.Meanwhile computer 1 is controlled by oil supply system 6 in 12 operation process of rolling bearing
Oil mass supply, torquemeter 4 and temperature sensor 16 can detect the performance in 12 operation process of rolling bearing.
Practicality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (10)
1. the rolling bearing performance experimental rig for loading alternating load based on crank connecting link, rolling bearing (12) includes bearing
Inner ring, the bearing outer ring being set in outside bearing inner race, the retainer being arranged between bearing outer ring and bearing inner race and more
The uniformly distributed rolling element on retainer of a circumferential direction along bearing inner race, which is characterized in that the device includes workbench
(15), the rotary shaft that rotary shaft supporting mechanism on workbench (15) is set, runs through rotary shaft supporting mechanism in the horizontal direction
(10), it is arranged on workbench (15) and the driving motor (2) being sequentially connected with one end of rotary shaft (10) and setting is in work
Make on platform (15) and compatible alternating load loading unit (7), the alternating load loading unit (7) include with rotary shaft (10)
It is set in the external fixture block component of rotary shaft (10) and is arranged on workbench (15) and is located at fixture block component both sides
First electric rotating machine (17) and the second electric rotating machine (24)；
It is equipped with the first crank connecting link between first electric rotating machine (17) and fixture block component and is driven load maintainer, first song
Handle link transmission load maintainer includes that the first crank rod assembly being sequentially connected with the first electric rotating machine (17) and setting exist
The first spring loads component between first crank rod assembly and fixture block component, first crank rod assembly include one
End cap is located at the first crank (25) on the output shaft of the first electric rotating machine (17), setting the of the first crank (25) other end
One connecting rod (26), setting first connecting rod (26) one end first piston (27) and be arranged on workbench (15) and with first
Compatible first guide cylinder (28) of piston (27)；
It is equipped with the second crank connecting link between second electric rotating machine (24) and fixture block component and is driven load maintainer, second song
Handle link transmission load maintainer includes that the second crank rod assembly being sequentially connected with the second electric rotating machine (24) and setting exist
Second spring charging assembly between second crank rod assembly and fixture block component, second crank rod assembly include one
End cap is located at the second crank (29) on the output shaft of the second electric rotating machine (24), setting the of the second crank (29) other end
Two connecting rods (30), setting second connecting rod (30) one end second piston (31) and be arranged on workbench (15) and with second
Compatible second guide cylinder (32) of piston (31).
2. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on crank connecting link,
It is characterized in that, the rotary shaft supporting mechanism includes the first support component being disposed in parallel on workbench (15), second
Support component, the rotary shaft (10) run through the first support component and the second support component in the horizontal direction.
3. the rolling bearing performance experimental rig according to claim 2 that load alternating load based on crank connecting link,
Exist it is characterized in that, first support component includes the first bearing seat (5) being arranged on workbench (15) and setting
In first bearing seat (5) and it is set in external the first auxiliary bearing (14) of rotary shaft (10), the second support component packet
It includes the second bearing seat (9) being arranged on workbench (15) and is arranged in second bearing seat (9) and is set in rotary shaft
(10) external the second auxiliary bearing (11).
4. the rolling bearing performance experimental rig according to claim 3 that load alternating load based on crank connecting link,
It is characterized in that, first auxiliary bearing (14) and the second auxiliary bearing (11) is rolling bearing.
5. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on crank connecting link,
It is characterized in that, the fixture block component includes the first fixture block (8) being oppositely arranged and the second fixture block (13), the described first folder
Rolling bearing installation cavity is equipped between block (8) and the second fixture block (13).
6. the rolling bearing performance experimental rig according to claim 5 that load alternating load based on crank connecting link,
It is characterized in that, being equipped with temperature sensor (16) in first fixture block (8).
7. the rolling bearing performance experimental rig according to claim 5 that load alternating load based on crank connecting link,
It is characterized in that, the first spring loads component includes the be arranged between first piston (27) and the first fixture block (8)
One spring (19), be arranged first piston link block (18) between one end of the first spring (19) and first piston (27) and
The first fixture block link block (20) between the other end and the first fixture block (8) of the first spring (19) is set；
The second spring charging assembly includes the second spring being arranged between second piston (31) and the second fixture block (13)
(22), the second piston link block (23) and setting being arranged between one end of second spring (22) and second piston (31) exist
The second fixture block link block (21) between the other end and the second fixture block (13) of second spring (22).
8. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on crank connecting link,
It is characterized in that, being equipped with shaft coupling (3) between the driving motor (2) and rotary shaft (10), and pass through shaft coupling (3) and rotation
One end of shaft (10) is sequentially connected.
9. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on crank connecting link,
It is characterized in that, the workbench (15) is equipped with rotary shaft (10) compatible torquemeter (4).
10. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on crank connecting link,
It is characterized in that, the device further includes computer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721874357.8U CN207866493U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on crank connecting link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721874357.8U CN207866493U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on crank connecting link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866493U true CN207866493U (en) | 2018-09-14 |
Family
ID=63463166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721874357.8U Expired - Fee Related CN207866493U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on crank connecting link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490674A (en) * | 2018-12-27 | 2019-03-19 | 艾威姆（天津）电气有限公司 | A kind of electric system compensation capacitor integrated test system |
-
2017
- 2017-12-28 CN CN201721874357.8U patent/CN207866493U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490674A (en) * | 2018-12-27 | 2019-03-19 | 艾威姆（天津）电气有限公司 | A kind of electric system compensation capacitor integrated test system |
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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: 20180914 Termination date: 20201228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |