CN207866509U - The rolling bearing performance experimental rig for loading alternating load based on screw rod transmission - Google Patents
The rolling bearing performance experimental rig for loading alternating load based on screw rod transmission Download PDFInfo
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- CN207866509U CN207866509U CN201721875349.5U CN201721875349U CN207866509U CN 207866509 U CN207866509 U CN 207866509U CN 201721875349 U CN201721875349 U CN 201721875349U CN 207866509 U CN207866509 U CN 207866509U
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- fixture block
- screw rod
- rod transmission
- rolling bearing
- component
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Abstract
The utility model is related to the rolling bearing performance experimental rigs for loading alternating load based on screw rod transmission, 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 screw rod transmission load maintainer between first electric rotating machine and fixture block component, the second screw rod transmission load maintainer is equipped between the second electric rotating machine and fixture block component.Compared with prior art, the first electric rotating machine, the second electric rotating machine can load alternating load by the first screw rod transmission load maintainer, the second screw rod transmission load maintainer to the rolling bearing in fixture block component respectively in the utility model, 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 screw rod transmission
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
Sliding block-cylinder sleeve, sliding block ring-cylinder sleeve, 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 lead screw to overcome the problems of the above-mentioned prior art
The rolling bearing performance experimental rig for loading alternating load of transmission.
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 screw rod transmission, 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
Equipped with the first screw rod transmission load maintainer, which includes to be sequentially connected with the first electric rotating machine
One screw rod transmission component and the first spring loads component being arranged between the first screw rod transmission component and fixture block component, it is described
The first screw rod transmission component include the first lead screw being sequentially connected with the first electric rotating machine, be set on the first lead screw and with
The first sliding block one lead screw compatible first nut and be arranged on the first nut；Second electric rotating machine and fixture block
The second screw rod transmission load maintainer is equipped between component, which includes being driven with the second electric rotating machine
Second screw rod transmission component of connection and the second spring load being arranged between the second screw rod transmission component and fixture block component
Component, the second screw rod transmission component include the second lead screw being sequentially connected with the second electric rotating machine, are set in second
On bar and the second nut compatible with the second lead screw and the second sliding block for being arranged on the second nut.First electric rotating machine band
Dynamic first lead screw rotation, makes the first nut be axially moved along the first lead screw, and the first sliding block is driven to move back and forth；Second electric rotating
Machine drives the rotation of the second lead screw, and the second nut is made to be axially moved along the second lead screw, and the second sliding block is driven to move back and forth.It will wait trying
The rolling bearing tested is placed between fixture block component, and is arranged on the rotary shaft；Driving motor drives rotary shaft rotation, the first rotation
Motor, the second electric rotating machine drive the first spring loads component, second spring load group by the first sliding block, the second sliding block respectively
Part applies active force to fixture block component, and then realizes the load to 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 the first sliding block and the first fixture block
Spring, the first sliding block link block being arranged between one end of the first spring and the first sliding block 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 includes being arranged in the second electric rotating
Second spring between machine and the second fixture block, the second sliding block link block being arranged between one end of second spring and the second sliding block
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
Sliding block moves back and forth, and then makes the first spring that stretching or compressive deformation occur, and by the first fixture block to the axis of rolling to be tested
Hold application loading force；Second electric rotating machine drives the second sliding block to move back and forth, and then makes second spring that stretching or compressed shape occur
Become, 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 pass through the first screw rod transmission load maintainer, the second lead screw respectively
It is driven load maintainer and alternating load is loaded to the rolling bearing in fixture block component, to simulate the true of dynamic load rolling bearing in internal combustion engine
Real working condition 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 the first sliding block, the second sliding block 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, the 18-the first sliding block link block, 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, the 23-the second sliding block link block, the 24-the second electric rotating machine, the 25-the first lead screw, the 26-the first spiral shell
Mother, the 27-the first sliding block, the 28-the second lead screw, the 29-the second nut, the 30-the second sliding block.
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 screw rod transmission 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；The first screw rod transmission load maintainer, first screw rod transmission are equipped between first electric rotating machine 17 and fixture block component
Load maintainer includes the first screw rod transmission component being sequentially connected with the first electric rotating machine 17 and is arranged in the first screw rod transmission
The first spring loads component between component and fixture block component, the first screw rod transmission component include being driven with the first electric rotating machine 17
Connection the first lead screw 25, be set on the first lead screw 25 and first nut 26 compatible with the first lead screw 25 and setting exist
The first sliding block 27 on first nut 26；It is equipped with the second screw rod transmission between second electric rotating machine 24 and fixture block component and loads machine
Structure, the second screw rod transmission load maintainer include the second screw rod transmission component being sequentially connected with the second electric rotating machine 24 and set
The second spring charging assembly between the second screw rod transmission component and fixture block component is set, the second screw rod transmission component includes and
Two electric rotating machines 24 be sequentially connected the second lead screw 28, be set on the second lead screw 28 and with the second lead screw 28 compatible second
Nut 29 and the second sliding block 30 being arranged on the second nut 29.
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 the first sliding block 27 and the first fixture block 8, setting
The first sliding block link block 18 between one end of the first spring 19 and the first sliding block 27 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 the second sliding block 30 with
Second spring 22 between second fixture block 13, the second sliding block being arranged between one end of second spring 22 and the second sliding block 30 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 screw rod transmission, 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)；
The first screw rod transmission load maintainer is equipped between first electric rotating machine (17) and fixture block component, which passes
Dynamic load maintainer includes the first screw rod transmission component being sequentially connected with the first electric rotating machine (17) and is arranged in the first lead screw
The first spring loads component between transmission component and fixture block component, the first screw rod transmission component include and the first rotation
The first lead screw (25) that motor (17) is sequentially connected is set on the first lead screw (25) and compatible the with the first lead screw (25)
One nut (26) and the first sliding block (27) being arranged on the first nut (26)；
The second screw rod transmission load maintainer is equipped between second electric rotating machine (24) and fixture block component, which passes
Dynamic load maintainer includes the second screw rod transmission component being sequentially connected with the second electric rotating machine (24) and is arranged in the second lead screw
Second spring charging assembly between transmission component and fixture block component, the second screw rod transmission component include and the second rotation
The second lead screw (28) that motor (24) is sequentially connected is set on the second lead screw (28) and compatible the with the second lead screw (28)
Two nuts (29) and the second sliding block (30) being arranged on the second nut (29).
2. the rolling bearing performance experimental rig according to claim 1 that load alternating load based on screw rod transmission,
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 screw rod transmission,
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 screw rod transmission,
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 screw rod transmission,
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 screw rod transmission,
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 screw rod transmission,
It is characterized in that, the first spring loads component includes the be arranged between the first sliding block (27) and the first fixture block (8)
One spring (19), be arranged the first sliding block link block (18) between one end of the first spring (19) and the first sliding block (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 the second sliding block (30) and the second fixture block (13)
(22), the second sliding block link block (23) and setting being arranged between one end of second spring (22) and the second sliding block (30) 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 screw rod transmission,
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 screw rod transmission,
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 screw rod transmission,
It is characterized in that, the device further includes computer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875349.5U CN207866509U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on screw rod transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875349.5U CN207866509U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on screw rod transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866509U true CN207866509U (en) | 2018-09-14 |
Family
ID=63463247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875349.5U Expired - Fee Related CN207866509U (en) | 2017-12-28 | 2017-12-28 | The rolling bearing performance experimental rig for loading alternating load based on screw rod transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866509U (en) |
-
2017
- 2017-12-28 CN CN201721875349.5U patent/CN207866509U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |