CN207866520U - A kind of rolling bearing performance experimental rig applying radially alternating load - Google Patents
A kind of rolling bearing performance experimental rig applying radially alternating load Download PDFInfo
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- CN207866520U CN207866520U CN201721876888.0U CN201721876888U CN207866520U CN 207866520 U CN207866520 U CN 207866520U CN 201721876888 U CN201721876888 U CN 201721876888U CN 207866520 U CN207866520 U CN 207866520U
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- fixture block
- straight line
- rolling bearing
- rotary shaft
- line motor
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Abstract
The utility model is related to a kind of rolling bearing performance experimental rigs applying radially alternating load, device includes workbench, rotary shaft supporting mechanism, rotary shaft, electric rotating machine and radially alternating load loading unit, the radially alternating load loading unit includes loading unit holder, fixture block component and a pair are arranged in a mutually vertical manner the linear motor radial loaded mechanism on loading unit holder, linear motor radial loaded mechanism includes being arranged on loading unit holder and being located at the first straight line motor charging assembly of fixture block component both sides, second straight line motor charging assembly.Compared with prior art, first straight line motor charging assembly, second straight line motor charging assembly in the utility model in two linear motor radial loaded mechanisms can apply radially 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 a kind of rolling bearing performance applying radially alternating load
Experimental rig.
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 overcome the problems of the above-mentioned prior art and diameter can be applied by providing one kind
To the rolling bearing performance experimental rig of alternating load.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of rolling bearing performance experimental rig applying radially alternating load, rolling bearing include bearing inner race, set
It is located at the bearing outer ring outside bearing inner race, the retainer that is arranged between bearing outer ring and bearing inner race and multiple along bearing
The uniformly distributed rolling element on retainer of circumferential direction of inner ring, the device include workbench, the rotation of setting on the table
Rotating shaft supporting mechanism, in the horizontal direction run through rotary shaft supporting mechanism rotary shaft, setting on the table and with rotary shaft
Electric rotating machine that one end is sequentially connected and setting are on the table and radially alternating load compatible with rotary shaft load is single
Member, the radially alternating load loading unit include setting loading unit holder on the table, are arranged in loading unit holder
Go up and be set in the fixture block component outside rotary shaft and a pair be arranged in a mutually vertical manner on loading unit holder and with fixture block group
Part compatible linear motor radial loaded mechanism, the linear motor radial loaded mechanism include being arranged in loading unit branch
On frame and it is located at the first straight line motor charging assembly of fixture block component both sides, second straight line motor charging assembly.It will wait trying
The rolling bearing tested is placed between fixture block component, and is arranged on the rotary shaft；Electric rotating machine drives rotary shaft rotation, two straight-line electrics
First straight line motor charging assembly, second straight line motor charging assembly in machine radial loaded mechanism are from four direction to fixture block group
Part applies active force, and then realizes the application to the radially alternating load of rolling bearing.
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.
The end face of the fixture block component is square as a preferred technical solution, two first straight line motor charging assemblies,
Two second straight line motor charging assemblies are located at the surrounding of fixture block component.
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 straight line motor charging assembly includes the first straight line being arranged on loading unit holder
Motor and the first spring being arranged between first straight line motor and fixture block component, one end and first of first spring
It is equipped with first straight line motor link block between linear motor, the first fixture block link block is equipped between the other end and fixture block component；Institute
The second straight line motor charging assembly stated includes the second straight line motor being arranged on loading unit holder and is arranged second
Second spring between linear motor and fixture block component is equipped with the between one end and second straight line motor of the second spring
Two linear motor link blocks are equipped with the second fixture block link block between the other end and fixture block component.First straight line motor passes through first
Spring and fixture block component elastic connection, first straight line motor can make the first spring that stretching or compressive deformation occur, and pass through folder
Block assembly applies loading force to rolling bearing to be tested；Second straight line motor is connected by second spring and fixture block component elasticity
It connects, second straight line motor can make second spring that stretching or compressive deformation occur, and by fixture block component to rolling to be tested
Bearing applies loading force.
Further, it is equipped with shaft coupling between the electric rotating machine and rotary shaft, and passes through shaft coupling and rotary shaft
One end is sequentially connected.Electric rotating machine 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 electric rotating machine, first straight line motor and
Two linear motors are electrically connected, to control corresponding component.Computer controls electric rotating machine 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 electric rotating machine rotation, makes rolling bearing with scheduled rotation speed operation；Pass through computer
It controls the displacement of the first straight line motor and second straight line motor in two linear motor radial loaded mechanisms, and then controls two the
The stretching/compressing amount of one spring and two second springs, due to the change of the first spring and the stretching/compressing amount of second spring,
One spring and second spring apply of different sizes, direction-agile active force in fixture block assembly surface, and then realize rolling bearing
The application of radially alternating load.Meanwhile computer controls the oil mass in rolling bearing operation process by oil supply system and supplies, and turns round
Square instrument and temperature sensor can 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 straight line motor charging assembly in two linear motor radial loaded mechanisms, second straight line motor charging assembly
Radially alternating load can be applied to the rolling bearing in fixture block component, to simulate the true work of dynamic load rolling bearing in internal combustion engine
Condition condition ensure that the accurate and reliable of rolling bearing performance test result；
2) first straight line motor, the displacement of second straight line motor and time variation amount are controlled by computer, to change the
The amount of tension or decrement of one spring, second spring, and then the elastic force of the first spring of control, second spring, realize rolling bearing
The application of radially alternating load.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of radial alternating load loading unit in the utility model；
Description of symbols in figure：
1-computer, 2-electric rotating machines, 3-shaft couplings, 4-torquemeters, 5-first bearing seats, 6-oil supply systems,
7-radially alternating load loading units, the 8-the first fixture block, 9-second bearing seats, 10-rotary shafts, the 11-the second asessory shaft
Hold, 12-rolling bearings, the 13-the second fixture block, the 14-the first auxiliary bearing, 15-workbench, 16-temperature sensors, 17-
First straight line motor, 18-first straight line motor link blocks, the 19-the first spring, the 20-the first fixture block link block, 21-the second
Fixture block link block, 22-second springs, 23-second straight line motor link blocks, 24-second straight line motors.
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：
A kind of rolling bearing performance experimental rig applying radially alternating load as shown in Figure 1, rolling bearing 12 wrap
Include bearing inner race, the bearing outer ring that is set in outside bearing inner race, the retainer being arranged between bearing outer ring and bearing inner race
And the uniformly distributed rolling element on retainer of multiple circumferential directions along bearing inner race, device include workbench 15, are arranged in work
Make the rotary shaft supporting mechanism on platform 15, the rotary shaft 10 for running through rotary shaft supporting mechanism in the horizontal direction, be arranged in workbench
The electric rotating machine 2 being sequentially connected on 15 and with one end of rotary shaft 10 and setting are on workbench 15 and suitable with 10 phase of rotary shaft
The radially alternating load loading unit 7 matched, as shown in Fig. 2, radially alternating load loading unit 7 includes being arranged on workbench 15
Loading unit holder, the fixture block component that is arranged on loading unit holder and is set in outside rotary shaft 10 and it is a pair of mutually
It is vertically set on loading unit holder and linear motor radial loaded mechanism compatible with fixture block component, linear motor is radial
Load maintainer include the first straight line motor charging assembly for being arranged on loading unit holder and being located at fixture block component both sides,
Second straight line motor charging assembly.
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 straight line motor charging assembly includes the first straight line motor 17 being arranged on loading unit holder and setting
The first spring 19 between first straight line motor 17 and fixture block component, one end of the first spring 19 and first straight line motor 17 it
Between be equipped with first straight line motor link block 18, between the other end and fixture block component be equipped with the first fixture block link block 20；Second straight line
Motor charging assembly includes the second straight line motor 24 being arranged on loading unit holder and is arranged in second straight line motor 24
Second spring 22 between fixture block component is equipped with second straight line electricity between one end and second straight line motor 24 of second spring 22
Machine link block 23 is equipped with the second fixture block link block 21 between the other end and fixture block component.
It is equipped with shaft coupling 3 between electric rotating machine 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 in simultaneously the first fixture block 8 and the second fixture block 13 it
Between, and be respectively sleeved in rotary shaft 10；Computer 1 controls electric rotating machine 2 and rotates, and rolling bearing 12 is made to be transported with scheduled rotating speed
Turn；The first straight line motor 17 and second straight line motor 24 in two linear motor radial loaded mechanisms are controlled by computer 1
Displacement, and then the stretching/compressing amount of two first springs 19 and two second springs 22 is controlled, due to the first spring 19 and the second bullet
The change of the stretching/compressing amount of spring 22, the first spring 19 and second spring 22 apply of different sizes, direction in fixture block assembly surface
Variable active force, and then realize the application of 12 radially alternating load of rolling bearing.Meanwhile computer 1 is controlled by oil supply system 6
Oil mass supply in 12 operation process of rolling bearing processed, torquemeter 4 and temperature sensor 16 can detect the operating of rolling bearing 12
Performance in the process.
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. a kind of rolling bearing performance experimental rig applying radially alternating load, rolling bearing (12) include bearing inner race,
It is set in the bearing outer ring outside bearing inner race, the retainer that is arranged between bearing outer ring and bearing inner race and multiple along axis
Hold the uniformly distributed rolling element on retainer of circumferential direction of inner ring, which is characterized in that the device includes workbench (15), sets
The rotary shaft supporting mechanism on workbench (15) is set, runs through the rotary shaft (10) of rotary shaft supporting mechanism in the horizontal direction, set
It sets on workbench (15) and the electric rotating machine (2) being sequentially connected with one end of rotary shaft (10) and setting is in workbench (15)
Upper and the compatible radially alternating load loading unit (7) with rotary shaft (10), the radially alternating load loading unit (7) include
Loading unit holder on workbench (15) is set, is arranged on loading unit holder and is set in rotary shaft (10) outside
Fixture block component and a pair are arranged in a mutually vertical manner on loading unit holder and linear motor compatible with fixture block component is radial
Load maintainer, the linear motor radial loaded mechanism include being arranged on loading unit holder and being located at fixture block component
First straight line motor charging assembly, the second straight line motor charging assembly of both sides.
2. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
It is, the rotary shaft supporting mechanism includes the first support component, the second support group being disposed in parallel on workbench (15)
Part, the rotary shaft (10) run through the first support component and the second support component in the horizontal direction.
3. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 2, feature
It is, first support component includes the first bearing seat (5) being arranged on workbench (15) and is arranged in first axle
In bearing (5) and it is set in external the first auxiliary bearing (14) of rotary shaft (10), second support component includes setting
Second bearing seat (9) and setting on workbench (15) in second bearing seat (9) and are set in rotary shaft (10) outside
The second auxiliary bearing (11).
4. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 3, feature
It is, first auxiliary bearing (14) and the second auxiliary bearing (11) are rolling bearing.
5. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
It is, the fixture block component includes the first fixture block (8) being oppositely arranged and the second fixture block (13), first fixture block (8)
Rolling bearing installation cavity is equipped between the second fixture block (13).
6. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 5, feature
It is, temperature sensor (16) is equipped in first fixture block (8).
7. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
Be, the first straight line motor charging assembly include the first straight line motor (17) being arranged on loading unit holder and
The first spring (19) being arranged between first straight line motor (17) and fixture block component, one end of first spring (19) with
It is equipped with first straight line motor link block (18) between first straight line motor (17), the first folder is equipped between the other end and fixture block component
Block link block (20)；
The second straight line motor charging assembly include the second straight line motor (24) being arranged on loading unit holder and
The second spring (22) being arranged between second straight line motor (24) and fixture block component, one end of the second spring (22) with
It is equipped with second straight line motor link block (23) between second straight line motor (24), the second folder is equipped between the other end and fixture block component
Block link block (21).
8. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
It is, shaft coupling (3) is equipped between the electric rotating machine (2) and rotary shaft (10), and pass through shaft coupling (3) and rotary shaft
(10) one end is sequentially connected.
9. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
It is, the workbench (15) is equipped with rotary shaft (10) compatible torquemeter (4).
10. a kind of rolling bearing performance experimental rig applying radially alternating load according to claim 1, feature
It is, the device further includes computer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876888.0U CN207866520U (en) | 2017-12-28 | 2017-12-28 | A kind of rolling bearing performance experimental rig applying radially alternating load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876888.0U CN207866520U (en) | 2017-12-28 | 2017-12-28 | A kind of rolling bearing performance experimental rig applying radially alternating load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866520U true CN207866520U (en) | 2018-09-14 |
Family
ID=63463309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721876888.0U Expired - Fee Related CN207866520U (en) | 2017-12-28 | 2017-12-28 | A kind of rolling bearing performance experimental rig applying radially alternating load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866520U (en) |
-
2017
- 2017-12-28 CN CN201721876888.0U patent/CN207866520U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20201228 |