CN108020419A - The bearing test device for loading alternate load based on lead screw transmission mechanism - Google Patents
The bearing test device for loading alternate load based on lead screw transmission mechanism Download PDFInfo
- Publication number
- CN108020419A CN108020419A CN201711458373.3A CN201711458373A CN108020419A CN 108020419 A CN108020419 A CN 108020419A CN 201711458373 A CN201711458373 A CN 201711458373A CN 108020419 A CN108020419 A CN 108020419A
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- China
- Prior art keywords
- bearing
- transmission mechanism
- lead screw
- alternate load
- screw transmission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to the bearing test device for loading alternate load based on lead screw transmission mechanism, including：Computer, driving motor through computer control connection, the output shaft of motor is driven to pass through shaft coupling and rotation axis connection, rotate outer shaft sleeve and be equipped with detected sliding bearing, the sliding bearing is by bearing block, it is embedded and is formed in bearing block in the bearing shell in smooth inside face, it is detected on bearing and is provided with alternate load charging assembly, the component is by the electric rotating machine into setting symmetrical above and below, the lead screw transmission mechanism being connected with electric rotating machine, the spring that is connected with the transmission mechanism and the bindiny mechanism's composition for being arranged on spring end, the bindiny mechanism is connected 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 screw being set in nut.Compared with prior art, compression/amount of tension of the invention by varying spring, controls the elastic force of spring, it is possible to achieve the loading of bearing alternate load.
Description
Technical field
The present invention relates to a kind of bearing load experimental rig, more particularly, to a kind of loading based on lead screw transmission mechanism
The bearing test device of alternate 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, it occupies very important status 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 one of the most key 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 loading load of test bearing is tested as bearing tester, its accuracy directly affect bearing
Result of the test.Bearing test device loading characteristic traditional at present is single, it is impossible to realize the loading of more varying loads, and it is true interior
Dynamic load bearing is often in alternate load in combustion engine, therefore traditional bearing test device is difficult the examination for carrying out engine dynamic load bearing
Test.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind is based on screw rod transmission
The bearing test device for loading alternate load of mechanism.
The purpose of the present invention can be achieved through the following technical solutions：
The bearing test device for loading alternate load based on lead screw transmission mechanism, including：
Computer,
The driving motor being connected with computer, the output shaft of the driving motor by shaft coupling and rotate axis connection,
The rotation outer shaft sleeve is equipped with detected bearing, which is sliding bearing, by bearing block, is embedded in bearing
Formed in seat in the bearing shell in smooth inside face,
Alternate load charging assembly is provided with the detected bearing, the component is by the rotation into setting symmetrical above and below
Motor, the toggle being connected with electric rotating machine, the spring being connected with the transmission mechanism and the company for being arranged on spring end
Connection mechanism forms, which is connected 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 with the inside of the nut, and the outside of the 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 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.
Stationary fixture is additionally provided with the outside of the floating holder, is folded with the stationary fixture and accompanies examination bearing.
Described accompanies examination bearing to be set in rotation axis and support rotation axis.
The torquemeter through computer drive control is also arranged with the rotation axis.
The computer control driving motor and alternate load charging assembly.
The alternate load charging assembly is connected with the oil supply system through computer drive control.
Computer controls the rotation of electric rotating machine, it is possible to achieve bearing is with given rotation speed operation.Loaded in alternate 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
Electric rotating machine-lead screw transmission mechanism-spring unit can realize the loading of bearing alternate load.Computer passes through fueller control
Oil mass supply during bearing operation processed.Torquemeter and temperature sensor can be used for detecting the performance during bearing operation
Performance.
Compared with prior art, the present invention has the following advantages：
1st, the rotation angle of electric rotating machine is controlled by computer, and then changes compression/amount of tension of spring, controls spring
Elastic force, it is possible to achieve the loading of bearing alternate load.
2nd, with reference to the real working condition condition of internal combustion engine, rotation angle and the change of time of electric rotating machine are controlled by computer
Change amount, it is possible to achieve the loading of internal combustion engine real working condition load.Contribute to carry out engine dynamic load bearing using the experimental rig
Experiment.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of alternate load charging assembly；
Fig. 3 is the structure 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
Put, 7 be alternate load charging assembly, and 8 be floating holder, and 9 be stationary fixture B, and 10 be rotation axis, and 11 is accompany examination bearing B, and 12 are
Bearing B is tested, 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 screw, and 27 be connection bolt.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiments will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment
A kind of bearing test device for loading alternate load based on lead screw transmission mechanism, as shown in Figure 1, the device bag
Include computer 1, drive motor 2, shaft coupling 3, torquemeter 4, stationary fixture A 5, oil supply system 6, alternate load charging assembly 7,
Floating holder 8, stationary fixture B 9, rotation axis 10, accompanies examination bearing B 11, subject bearing B 12, subject bearing A 13, accompanies examination axis
Hold A 14, workbench 15.Wherein, as shown in Fig. 2, alternate load charging assembly 7 includes temperature sensor 16, electric rotating machine A
17, lead screw transmission mechanism A 18, spring A 19, attachment device A 20, attachment device B 21, spring B 22, lead screw transmission mechanism
23, electric rotating machine B 24.What the present embodiment was mainly tested is sliding bearing, by bearing block, is embedded in bearing block in smooth interior
The bearing shell composition of side.
Motor 2, torquemeter 4, stationary fixture A 5 and stationary fixture B 9 is driven to be installed on workbench 15.Drive motor 2
It is connected by shaft coupling 3 with rotation axis 10, rotation axis 10 is rotated.Examination bearing A 14 is accompanied to be installed in stationary fixture A 5
Portion, accompanies examination bearing B 11 to be installed on inside stationary fixture B 9.And it is tested bearing A 13 and subject bearing B 14 and is installed on activity
Inside fixture 8.Examination bearing A 14 is accompanied with accompanying examination bearing B 11 to play the role of supporting rotation axis 10.
In alternate load charging assembly 7, two components are installed.Electric rotating machine A17 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
25th, screw 26, connection bolt 27.Nut 25 exports axis connection, spiral shell through connecting bolt 27 and electric rotating machine, and 25 inner sides are provided with interior
Screw thread, screw 26 are set in nut 25, and the screw thread that matches with internal thread is equipped with the outside of screw 26, nut 25 with
Electric rotating machine output shaft rotates, and interaction of the 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
Control driving motor 2 rotates, and realizes bearing with given rotation speed operation.Meanwhile computer 1 controls fueller 6 to realize 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 gather the signal during bearing operation, monitors the operational situation of bearing.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. the bearing test device for loading alternate load based on lead screw transmission mechanism, it is characterised in that the experimental rig bag
Include：
Computer,
The driving motor being connected with computer, the output shaft of the driving motor by shaft coupling and rotate axis connection,
The rotation outer shaft sleeve is equipped with detected bearing, which is sliding bearing, by bearing block, is embedded in bearing block
Formed in the bearing shell in smooth inside face,
Alternate load charging assembly is provided with the detected bearing, the component is by the electric rotating into setting symmetrical above and below
Machine, the toggle being connected with electric rotating machine, the spring being connected with the transmission mechanism and the connection for being arranged on spring end
Mechanism forms, which is connected 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 screw group being set in nut
Into nut inner side is provided with internal thread, and the outside of the 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 screw through screw thread moves along a straight line along nut axial direction.
2. the bearing test device according to claim 1 that load alternate load based on lead screw transmission mechanism, it is 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 alternate load based on lead screw transmission mechanism, it is special
Sign is that the detected bearing is equipped with temperature sensor.
4. the bearing test device according to claim 1 that load alternate load based on lead screw transmission mechanism, it is special
Sign is, is additionally provided with stationary fixture on the outside of the floating holder, is folded with the stationary fixture and accompanies examination bearing.
5. the bearing test device according to claim 4 that load alternate load based on lead screw transmission mechanism, it is special
Sign is that described accompanies examination bearing to be set in rotation axis and support rotation axis.
6. the bearing test device according to claim 1 that load alternate load based on lead screw transmission mechanism, it is special
Sign is, the torquemeter through computer drive control is also arranged with the rotation axis.
7. the bearing test device according to claim 1 that load alternate load based on lead screw transmission mechanism, it is special
Sign is that computer control drives motor and alternate load charging assembly.
8. the bearing test device according to claim 1 that load alternate load based on lead screw transmission mechanism, it is special
Sign is that the alternate load charging assembly is connected with the oil supply system through computer drive control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458373.3A CN108020419A (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternate load based on lead screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458373.3A CN108020419A (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternate load based on lead screw transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108020419A true CN108020419A (en) | 2018-05-11 |
Family
ID=62071929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711458373.3A Withdrawn CN108020419A (en) | 2017-12-28 | 2017-12-28 | The bearing test device for loading alternate load based on lead screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108020419A (en) |
-
2017
- 2017-12-28 CN CN201711458373.3A patent/CN108020419A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180511 |