CN207866513U - The bearing test device for loading alternating load based on lead screw transmission mechanism - Google Patents
The bearing test device for loading alternating load based on lead screw transmission mechanism Download PDFInfo
- Publication number
- CN207866513U CN207866513U CN201721875479.9U CN201721875479U CN207866513U CN 207866513 U CN207866513 U CN 207866513U CN 201721875479 U CN201721875479 U CN 201721875479U CN 207866513 U CN207866513 U CN 207866513U
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- Prior art keywords
- bearing
- lead screw
- transmission mechanism
- alternating load
- screw transmission
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Abstract
The utility model is related to the bearing test devices for loading alternating load based on lead screw transmission mechanism, including：Computer, driving motor through computer control connection, the output shaft of driving motor passes through shaft coupling and rotation axis connection, it rotates outer shaft sleeve and is equipped with detected sliding bearing, the sliding bearing is by bearing block, the bearing shell in bearing block in smooth inside face is embedded to form, it is detected on bearing and is provided with alternating load charging assembly, the component is by the electric rotating machine at setting symmetrical above and below, the lead screw transmission mechanism being connect with electric rotating machine, the spring that is connect with the transmission mechanism and bindiny mechanism's composition in spring end is set, the bindiny mechanism is connect by floating holder with detected bearing；Silk lead screw transmission mechanism is made of the nut being flexibly connected with electric rotating machine output shaft and the lead screw being set in nut.Compared with prior art, the utility model controls the elastic force of spring, the load of bearing alternating load may be implemented by compression/amount of tension of change spring.
Description
Technical field
The utility model is related to a kind of bearing load experimental rig, more particularly, to it is a kind of based on lead screw transmission mechanism can
Load the bearing test device of alternating load.
Background technology
Internal combustion engine is widely used in automobile, ship, aircraft, tank, railway locomotive, agricultural machinery, engineering machinery, power generation
Multiple industries such as unit, play a very important role as power-equipment in national economy.Include work in internal combustion engine
Plug-cylinder sleeve, piston ring-cylinder liner, bent axle-bearing and cam-tappet etc. are several to important friction pair, wherein crankshaft bearing, including
Base bearing and the connecting-rod bearing (since the size and Orientation of such bearing working load all changes over time, are thus generically referred to as moving
Load bearings), it is the most key one of the friction pair of internal combustion engine, it not only influences the reliability of internal combustion engine and durable
Property, also affect the potentiality that internal combustion engine is further strengthened.
The performance and its reliability of bearing are the most important performance indicators of bearing, but due to influencing bearing performance factor too
More, it is a kind of effective way to carry out bearing test.Bearing test is essential and basic important in design bearing and manufacturing process
Verification process.The important parameter that the load load of test bearing is tested as bearing tester, accuracy directly affect bearing
Test result.Bearing test device loading characteristic traditional at present is single, can not achieve the load of changeable load, and true interior
Dynamic load bearing is often in alternating load in combustion engine, therefore traditional bearing test device is difficult the examination for carrying out engine dynamic load bearing
It tests.
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 bearing test device for loading alternating load of transmission mechanism.
The purpose of this utility model can be achieved through the following technical solutions：
The bearing test device for loading alternating load based on lead screw transmission mechanism, including：
Computer,
The output shaft of the driving motor being connect with computer, the driving motor by shaft coupling and rotates axis connection,
The rotation outer shaft sleeve is equipped with detected bearing, which is sliding bearing, by bearing block, is embedded in bearing
It is formed in the bearing shell in smooth inside face in seat,
It is provided with alternating load charging assembly on the detected bearing, the component is by the rotation at setting symmetrical above and below
Motor, the toggle being connect with electric rotating machine, the spring being connect with the transmission mechanism and company in spring end is set
Connection mechanism forms, which is connect by floating holder with detected bearing；
The lead screw transmission mechanism is by the nut being flexibly connected with electric rotating machine output shaft and the silk being set in nut
Bar forms, and internal thread is provided on the inside of the nut, and the outside of the lead screw is equipped with the screw thread to match with internal thread, institute
The nut stated is rotated with electric rotating machine output shaft, and interaction of the lead screw through screw thread straight line along nut axial direction is transported
It is dynamic.
The nut exports axis connection through connecting bolt with electric rotating machine.
The detected bearing is equipped with temperature sensor.
It is additionally provided with stationary fixture on the outside of the floating holder, is folded in the stationary fixture and accompanies examination bearing.
Described accompanies examination bearing to be set in rotary shaft and support rotary shaft.
The torquemeter through computer drive control is also arranged in the rotary shaft.
The computer control driving motor and alternating load charging assembly.
The alternating load charging assembly is connected with the oil supply system through computer drive control.
Computer controls the rotation of electric rotating machine, and bearing may be implemented with given rotation speed operation.It is loaded in alternating load
In module, the rotation of electric rotating machine is controlled by computer.By lead screw transmission mechanism by the rotary motion of electric rotating machine
Linear motion is converted to, the stretching/compressing amount of spring can be influenced.Due to the change of the stretching/compressing amount of spring, spring can
To apply of different sizes, direction-agile active force on floating holder surface.By adding two in floating holder different zones
The load of bearing alternating load may be implemented in electric rotating machine-lead screw transmission mechanism-spring unit.Computer passes through fueller control
Oil mass supply during bearing operation processed.Torquemeter and temperature sensor can hold the performance in operation process for detection axis
Performance.
Compared with prior art, the utility model has the following advantages：
1, the rotation angle of electric rotating machine is controlled by computer, and then changes compression/amount of tension of spring, controls spring
Elastic force, the load of bearing alternating load may be implemented.
2, in conjunction with the real working condition condition of internal combustion engine, the change of the rotation angle and time of electric rotating machine is controlled by computer
The load of internal combustion engine real working condition load may be implemented in change amount.Contribute to carry out engine dynamic load bearing using the experimental rig
Experiment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of alternating load charging assembly；
Fig. 3 is the structural schematic diagram of lead screw transmission mechanism.
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 fill for fuel feeding
It sets, 7 be alternating load charging assembly, and 8 be floating holder, and 9 be stationary fixture B, and 10 be rotary shaft, and 11 is accompany examination bearing B, and 12 are
It is tested bearing B, 13 be subject bearing A, and 14 is accompany examination bearing A, and 15 be workbench, and 16 be temperature sensor, and 17 be electric rotating
Machine A, 18 be lead screw transmission mechanism A, and 19 be spring A, and 20 be attachment device A, and 21 be attachment device B, and 22 be spring B, and 23 be silk
Bar transmission mechanism B, 24 be electric rotating machine B, and 25 be nut, and 26 be lead screw, and 27 be connection bolt.
Specific implementation mode
The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These belong to the scope of protection of the utility model.
Embodiment
A kind of bearing test device for loading alternating load based on lead screw transmission mechanism, as shown in Figure 1, the device packet
Include computer 1, driving motor 2, shaft coupling 3, torquemeter 4, stationary fixture A 5, oil supply system 6, alternating load charging assembly 7,
Floating holder 8, stationary fixture B 9, rotary shaft 10 accompany examination bearing B 11, subject bearing B 12, subject bearing A 13 to accompany examination axis
Hold A 14, workbench 15.Wherein, as shown in Fig. 2, alternating load charging assembly 7 includes temperature sensor 16, electric rotating machine A
17, lead screw transmission mechanism A 18, spring A 19, attachment device A20, attachment device B 21, spring B 22, lead screw transmission mechanism
23, electric rotating machine B 24.The present embodiment master to be tested is sliding bearing, by bearing block, is embedded in bearing block in smooth interior
The bearing shell of side forms.
Driving motor 2, torquemeter 4, stationary fixture A5 and stationary fixture B 9 are mounted on workbench 15.Driving motor 2 is logical
It crosses shaft coupling 3 with rotary shaft 10 to be connected, rotary shaft 10 is made to rotate.It accompanies examination bearing A14 to be mounted on inside stationary fixture A5, accompanies
Bearing B 11 is tried to be mounted on inside stationary fixture B 9.And it is tested bearing A13 and subject bearing B 14 and is mounted in floating holder 8
Portion.Examination bearing A 14 is accompanied to play the role of supporting rotary shaft 10 with examination bearing B 11 is accompanied.
In alternating load charging assembly 7, there are two components for installation.Electric rotating machine A 17 passes through lead screw transmission mechanism A 18
It is linear motion by convert rotational motion, stretching/compressing deformation occurs for control spring A 19, and spring A 19 passes through attachment device A
20 are connected with floating holder 8, apply bearing loading force.Similar, electric rotating machine B 24 will be revolved by lead screw transmission mechanism B 23
Transhipment turn turns to linear motion, and stretching/compressing deformation occurs for control spring B 22, spring B 22 by attachment device B 21 and
Floating holder 8 is connected, and applies bearing loading force.
Lead screw transmission mechanism A 18 is roughly the same with the structure of lead screw transmission mechanism B 23, as shown in figure 3, including nut
25, lead screw 26, connection bolt 27.Nut 25 exports axis connection, spiral shell through connecting bolt 27 and electric rotating machine, and 25 insides are provided with interior
Screw thread, lead screw 26 are set in nut 25, and are equipped with the screw thread that matches with internal thread in the outside of lead screw 26, nut 25 with
Electric rotating machine output shaft rotates, and interaction of the lead screw 26 through screw thread moves along a straight line along 25 axial direction of nut, and then controls
Stretching/compressing deformation occurs for spring.
Computer 1 is connected with driving motor 2, fueller 6, electric rotating machine A 17 and electric rotating machine B 24.Computer 1
It controls driving motor 2 to rotate, realizes bearing with given rotation speed operation.Meanwhile computer 1 controls fueller 6 and realizes bearing
Fuel feeding.The operation of electric rotating machine A 17 and electric rotating machine B 24 is also controlled by computer.In addition, torquemeter 4 and temperature pass
Sensor 16 is also connected with computer 1, can acquire the signal during bearing operation, monitors the operational situation of bearing.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.
Claims (8)
1. the bearing test device for loading alternating load based on lead screw transmission mechanism, which is characterized in that the experimental rig packet
It includes：
Computer,
The output shaft of the driving motor being connect with computer, the driving motor by shaft coupling and rotates axis connection,
The rotation outer shaft sleeve is equipped with detected bearing, which is sliding bearing, by bearing block, is embedded in bearing block
It is formed in the bearing shell in smooth inside face,
It is provided with alternating load charging assembly on the detected bearing, the component is by the electric rotating at setting symmetrical above and below
Machine, the toggle being connect with electric rotating machine, the spring being connect with the transmission mechanism and connection in spring end is set
Mechanism forms, which is connect by floating holder with detected bearing；
The lead screw transmission mechanism is by the nut being flexibly connected with electric rotating machine output shaft and the lead screw group being set in nut
At nut inside is provided with internal thread, and the outside of the lead screw is equipped with the screw thread to match with internal thread, described
Nut is rotated with electric rotating machine output shaft, and interaction of the lead screw through screw thread moves along a straight line along nut axial direction.
2. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is that the nut exports axis connection through connecting bolt with electric rotating machine.
3. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is that the detected bearing is equipped with temperature sensor.
4. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is, is additionally provided with stationary fixture on the outside of the floating holder, is folded in the stationary fixture and accompanies examination bearing.
5. the bearing test device according to claim 4 that load alternating load based on lead screw transmission mechanism, special
Sign is that described accompanies examination bearing to be set in rotary shaft and support rotary shaft.
6. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is, the torquemeter through computer drive control is also arranged in the rotary shaft.
7. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is that the computer controls driving motor and alternating load charging assembly.
8. the bearing test device according to claim 1 that load alternating load based on lead screw transmission mechanism, special
Sign is that the alternating load charging assembly is connected with the oil supply system through computer drive control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875479.9U CN207866513U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternating load based on lead screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875479.9U CN207866513U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternating load based on lead screw transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866513U true CN207866513U (en) | 2018-09-14 |
Family
ID=63463267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875479.9U Expired - Fee Related CN207866513U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternating load based on lead screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866513U (en) |
-
2017
- 2017-12-28 CN CN201721875479.9U patent/CN207866513U/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 |