CN208283065U - The bearing test device for applying radially alternating load based on lead screw transmission mechanism - Google Patents
The bearing test device for applying radially alternating load based on lead screw transmission mechanism Download PDFInfo
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- CN208283065U CN208283065U CN201721877045.2U CN201721877045U CN208283065U CN 208283065 U CN208283065 U CN 208283065U CN 201721877045 U CN201721877045 U CN 201721877045U CN 208283065 U CN208283065 U CN 208283065U
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- bearing
- transmission mechanism
- lead screw
- screw transmission
- alternating load
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Abstract
The utility model relates to the bearing test devices for applying radially alternating load based on lead screw transmission mechanism, it include: computer, the computer is connected with driving motor, the output shaft of driving motor passes through shaft coupling and rotation axis connection, it rotates outer shaft sleeve and is equipped with detected bearing, the bearing is sliding bearing, the radially alternating load loading module being detected on bearing is set, it is being detected on the outside of bearing including the temperature sensor being detected on bearing and setting is arranged in, the symmetrical loading component on four direction, loading component includes rotating electric machine, the lead screw transmission mechanism being connect with rotating electric machine, the spring that is connect with lead screw transmission mechanism and the bindiny mechanism for being connected to the spring other end.Compared with prior art, bearing may be implemented in four direction, the load of the alternating load of two radial directions in the utility model.
Description
Technical field
The utility model relates to a kind of bearing test devices, more particularly, to a kind of applying based on lead screw transmission mechanism
The bearing test device of radially alternating load.
Background technique
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 in national economy as power-equipment.It include living in internal combustion engine
Plug-cylinder sleeve, piston ring-cylinder liner, crankshaft-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, carrying out bearing test is a kind of effective way.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 to carry out the examination of engine dynamic load bearing
It tests.
Utility model content
The purpose of this utility model is exactly to provide a kind of based on screw rod to overcome the problems of the above-mentioned prior art
The bearing test device for applying radially alternating load of transmission mechanism.
The purpose of this utility model can be achieved through the following technical solutions:
The bearing test device for applying radially alternating load based on lead screw transmission mechanism characterized by comprising
Computer,
The computer is connected with driving motor, and the output shaft of 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 seat in the bearing shell in smooth inside face,
The radially alternating load loading module being detected on bearing is set, including the temperature being detected on bearing is arranged in
Sensor and setting are being detected on the outside of bearing, the symmetrical loading component on four direction, and the loading component includes
Rotating electric machine, the lead screw transmission mechanism being connect with rotating electric machine, the spring being connect with lead screw transmission mechanism and to be connected to spring another
The bindiny mechanism of one end；
The lead screw transmission mechanism is by the nut being flexibly connected with rotating electric machine output shaft and the silk being set in nut
Bar composition, the nut inside are provided with internal screw thread, and the outside of the screw rod is equipped with the screw thread to match with internal screw thread, institute
The nut stated is rotated with rotating electric machine output shaft, and interaction of the screw rod through screw thread straight line along nut axial direction is transported
It is dynamic, it is also attached by connecting rod assembly between four screw rods.
The nut exports axis connection through connection bolt and rotating electric machine.
The connecting rod assembly is made of four connecting rods, and one end of each connecting rod is hinged, and the other end is separately connected screw rod, is utilized
Connecting rod assembly controls the synchronism of four screw rods movement.
The bindiny mechanism is connect by floating holder with detected bearing, and the floating holder is by symmetrical above and below
Two components merge to obtain, and the internal form fit with detected bearing, outside is planar structure, is separately connected one group of loading unit
Part.
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, positioned at the outside of detected bearing.
The radially alternating load loading module is connected with oil supply system, which connect with Computer signal.
The temperature sensor is connect with Computer signal.
It is also arranged with torquemeter in the rotary shaft, which connect with Computer signal.
Computer controls the rotation of driving motor, and bearing may be implemented with given rotation speed operation.In radially alternating load
In loading module, the rotation of rotating electric machine is controlled by computer.By lead screw transmission mechanism by the rotation of rotating electric machine
Movement is converted to linear motion, can influence the stretching/compressing amount of spring.Due to the change of the stretching/compressing amount of spring, spring
It can will apply of different sizes, direction-agile active force on floating holder surface.By being added in floating holder different zones
The load of the radially alternating load of bearing may be implemented in multiple rotating electric machine-lead screw transmission mechanism-spring units, to realize two
Apply load simultaneously on direction, guarantees the synchronism of load additionally by connecting rod assembly.Computer passes through fueller control shaft
Hold the oil mass supply in operation process.Torquemeter and temperature sensor can be used to detection axis and hold the performance table in operation process
It is existing.
Compared with prior art, the utility model has the advantage that
1, the rotation angle of rotating electric machine is controlled by computer, and then changes compression/amount of tension of spring, controls spring
Elastic force, bearing may be implemented in four direction, the load of the alternating load of two radial directions.
2, in conjunction with the real working condition condition of internal combustion engine, the rotation angle and the change of time of rotating electric machine are controlled by computer
The load of internal combustion engine real working condition load may be implemented in change amount.Facilitate to carry out engine dynamic load bearing using the experimental rig
Test.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the radially alternating load loading module of the utility model；
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 radially alternating load loading module, and 8 be floating holder, and 9 be stationary fixture B, and 10 be rotary shaft, and 11 is accompany examination bearing B,
12 be subject bearing B, and 13 be subject bearing A, and 14 is accompany examination bearing A, and 15 be workbench, and 16 be temperature sensor, and 17 be rotation
Rotating motor A, 18 be lead screw transmission mechanism A, and 19 be spring A, and 20 be attachment device A, and 21 be rotating electric machine B, and 22 be screw rod transmission
Mechanism B, 23 be spring B, and 24 be attachment device B, and 25 be attachment device C, and 26 be spring C, and 27 be lead screw transmission mechanism C, and 28 are
Rotating electric machine C, 29 be attachment device D, and 30 be spring D, and 31 be lead screw transmission mechanism D, and 32 be rotating electric machine D, and 33 be nut, 34
It is connection bolt for screw rod, 35,36 be connecting rod.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.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 are all within the protection scope of the present invention.
Embodiment
A kind of bearing test device for applying radially alternating load based on lead screw transmission mechanism, as shown in Figure 1, the dress
It sets including computer 1, driving motor 2, shaft coupling 3, torquemeter 4, stationary fixture A5, oil supply system 6, radially alternating load load
Module 7, floating holder 8, stationary fixture B 9, rotary shaft 10 accompany examination bearing B11, are tested bearing B 12, be tested bearing A 13, accompany
Try bearing A 14, workbench 15.Wherein, as shown in Fig. 2, radially alternating load loading module 7 includes temperature sensor 16, rotation
Rotating motor A 17, lead screw transmission mechanism A 18, spring A19, attachment device A 20, rotating electric machine B 21, lead screw transmission mechanism B
22, spring B 23, attachment device B 24, attachment device C 25, spring C 26, lead screw transmission mechanism C 27, rotating electric machine C 28,
Attachment device D 29, spring D 30, lead screw transmission mechanism D 31, rotating electric machine D 32.
Wherein, driving motor 2, torquemeter 4, stationary fixture A 5 and stationary fixture B 9 are mounted on workbench 15.Rotation
Motor 2 is connected by shaft coupling 3 with rotary shaft 10, and rotary shaft 10 is made to rotate.Examination bearing A 14 is accompanied to be mounted on stationary fixture A
Inside 5, examination bearing B 11 is accompanied to be mounted on inside stationary fixture B 9.And it is tested bearing A 13 and is tested bearing B 14 and be mounted on work
Inside dynamic fixture 8.It accompanies examination bearing A 14 and examination bearing B 11 is accompanied to play the role of supporting rotary shaft 10.
In radially alternating load loading module 7, there are four components for installation, can symmetrically load on four direction.
Rotating electric machine A17 converts rotational motion into linear motion by lead screw transmission mechanism A 18, control spring A 19 occur stretching/
Compressive deformation, spring A 19 are connected by attachment device A 20 with floating holder 8, and bearing loading force is applied.Similar, electric rotating
Machine B 21 converts rotational motion into linear motion by lead screw transmission mechanism B 22, and stretching/compressing occurs for control spring B 23
Deformation, spring B 23 are connected by attachment device B 24 with floating holder 8, and bearing loading force is applied；Rotating electric machine C 28 passes through
Lead screw transmission mechanism C 27 converts rotational motion into linear motion, and stretching/compressing deformation, spring C occur for control spring C 26
26 are connected by attachment device C 25 with floating holder 8, and bearing loading force is applied；Rotating electric machine D 32 passes through lead screw transmission mechanism
D 31 converts rotational motion into linear motion, and stretching/compressing deformation occurs for control spring D 30, and spring D 30 passes through connection dress
It sets D 29 to be connected with floating holder 8, applies bearing loading force.
The structure of four lead screw transmission mechanism used is roughly the same, as shown in figure 3, by passing through with rotating electric machine output shaft
Connection bolt 35 nut 33 connected and the screw rod 26 being set in nut form, and are provided with internal screw thread, screw rod on the inside of nut 25
26 outside is equipped with the screw thread to match with internal screw thread, and nut 25 is rotated with rotating electric machine output shaft, phase of the screw rod 26 through screw thread
Interaction moves along a straight line along nut axial direction, converts linear motion for rotary motion, so control spring occur to stretch/
Compressive deformation, in addition, being also attached by connecting rod assembly between four screw rods.Connecting rod assembly is by four used in the present embodiment
Root connecting rod 36 is constituted, and one end of each connecting rod is hinged, and the other end is separately connected screw rod, is controlled four screw rods using connecting rod assembly and is moved
Synchronism.
Computer 1 and driving motor 2, fueller 6, rotating electric machine A 17, rotating electric machine B 21, rotating electric machine C 28 with
And rotating electric machine D 32 is connected.Computer 1 controls driving motor 2 and rotates, and realizes bearing with given rotation speed operation.Meanwhile it counting
Calculation machine 1 controls the fuel feeding that fueller 6 realizes bearing.Rotating electric machine A 17, rotating electric machine B 21, rotating electric machine C 28 and rotation
The operation of motor D 32 is also by the control of computer.In addition, torquemeter 4 and temperature sensor 16 are also connected with computer 1, it can
The signal during bearing operation is acquired, the operational situation of bearing is monitored.
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 (9)
1. the bearing test device for applying radially alternating load based on lead screw transmission mechanism characterized by comprising
Computer,
The computer is connected with driving motor, and the output shaft of 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,
The radially alternating load loading module being detected on bearing is set, including the temperature sensing being detected on bearing is arranged in
Device and setting are being detected on the outside of bearing, and the symmetrical loading component on four direction, the loading component includes rotation
Motor, the lead screw transmission mechanism connecting with rotating electric machine, the spring connecting with lead screw transmission mechanism and it is connected to the spring other end
Bindiny mechanism；
The lead screw transmission mechanism is by the nut being flexibly connected with rotating electric machine output shaft and the screw rod group being set in nut
At the nut inside is provided with internal screw thread, and the outside of the screw rod is equipped with the screw thread to match with internal screw thread, described
Nut is rotated with rotating electric machine output shaft, and interaction of the screw rod through screw thread moves along a straight line along nut axial direction,
It is also attached by connecting rod assembly between four screw rods.
2. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, the nut exports axis connection through connection bolt and rotating electric machine.
3. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, the connecting rod assembly is made of four connecting rods, one end of each connecting rod is hinged, and the other end is separately connected screw rod.
4. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, the bindiny mechanism is connect by floating holder with detected bearing, the floating holder is by right up and down
Two components claimed merge to obtain, and the internal form fit with detected bearing, outside is planar structure, is separately connected one group and adds
Carry component.
5. the bearing test device according to claim 4 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, being additionally provided with stationary fixture on the outside of the floating holder, it is folded in the stationary fixture and accompanies examination bearing.
6. the bearing test device according to claim 5 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, described accompanies examination bearing to be set in rotary shaft, positioned at the outside of detected bearing.
7. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, the radially alternating load loading module is connected with oil supply system, the oil supply system and Computer signal connect
It connects.
8. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, the temperature sensor is connect with Computer signal.
9. the bearing test device according to claim 1 that apply radially alternating load based on lead screw transmission mechanism,
It is characterized in that, being also arranged with torquemeter in the rotary shaft, which connect with Computer signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877045.2U CN208283065U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for applying radially alternating load based on lead screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877045.2U CN208283065U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for applying radially alternating load based on lead screw transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208283065U true CN208283065U (en) | 2018-12-25 |
Family
ID=64748388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721877045.2U Expired - Fee Related CN208283065U (en) | 2017-12-28 | 2017-12-28 | The bearing test device for applying radially alternating load based on lead screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208283065U (en) |
-
2017
- 2017-12-28 CN CN201721877045.2U patent/CN208283065U/en not_active Expired - Fee Related
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|---|---|---|---|
| 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: 20181225 Termination date: 20201228 |