CN108593292A - Bearing tester type alternating load loading device based on rack pinion - Google Patents
Bearing tester type alternating load loading device based on rack pinion Download PDFInfo
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- CN108593292A CN108593292A CN201711457235.3A CN201711457235A CN108593292A CN 108593292 A CN108593292 A CN 108593292A CN 201711457235 A CN201711457235 A CN 201711457235A CN 108593292 A CN108593292 A CN 108593292A
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- rack
- bearing
- electric rotating
- rotating machine
- spring
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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 a kind of bearing tester type alternating load loading device based on rack pinion, the bearing tester includes rotary shaft (1), it includes fixture (3) to be tested bearing (2) and be mounted on the loading device in the rotary shaft (1), and the multiple electric rotating machine rack and pinion drive mechanism spring assemblies being arranged around fixture (3), the electric rotating machine rack and pinion drive mechanism spring assembly includes being sequentially connected electric rotating machine, rack and pinion drive mechanism and spring, electric rotating machine drives rack and pinion drive mechanism movement, it controls spring and stretching or compressive deformation occurs, alternating load is applied to the subject bearing (2) in fixture (3).Compared with prior art, the present invention has many advantages, such as that internal combustion engine real working condition load may be implemented.
Description
Technical field
The present invention relates to a kind of bearing tester load devices, more particularly, to a kind of axis based on rack pinion
Hold testing machine type alternating load loading device.
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 is difficult to realize engine dynamic load axis with loading device
The alternating load load held.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind, and internal combustion may be implemented
The bearing tester type alternating load loading device based on rack pinion of the load of machine real working condition load.
The purpose of the present invention can be achieved through the following technical solutions：A kind of bearing test based on rack pinion
Machine type alternating load loading device, the bearing tester include rotary shaft, and subject bearing is mounted in the rotary shaft,
It is characterized in that, which includes fixture, and the multiple electric rotating machines-rack pinion machine being arranged around fixture
Structure-spring assembly, the electric rotating machine-rack and pinion drive mechanism-spring assembly include being sequentially connected electric rotating machine, gear
Rack gear and spring, electric rotating machine drive rack and pinion drive mechanism movement, control spring that stretching or compressed shape occurs
Become, alternating load is applied to the subject bearing in fixture.
There are two the electric rotating machine-rack and pinion drive mechanism-spring assembly is set：Component A and component B, symmetrically sets
Set the both sides above and below fixture.
The component A includes：Electric rotating machine A, rack and pinion drive mechanism A and spring A, the motor A pass through tooth
The one end rack gear A connecting spring A is taken turns, the spring A other ends pass through attachment device A jockeies；
The component B includes：Electric rotating machine B, rack and pinion drive mechanism B and spring B, the motor B pass through tooth
The one end rack gear B connecting spring B is taken turns, the spring B other end passes through attachment device B jockeies.
The wheel rack gear A includes gear and rack, and the gear connects electric rotating machine A, the tooth
Item is engaged with gear, and connecting spring A.
The structure of the rack and pinion drive mechanism B is identical as wheel rack gear A.
The fixture is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture at bulk, and
The one side that upper fixture and lower fixture fit respectively sets a semicircular indentations, and the circumferential notch being combined into matches with subject bearing.
The upper fixture upper surface is plane, is connect with attachment device A, and a semi-circular recesses are equipped in lower surface, with
Subject bearing matches；The lower surface of lower fixture is plane, is connect with attachment device B, and upper surface is equipped with a semi-circular recesses, with
Subject bearing matches.
The bearing tester further includes control system, which is connected with electric rotating machine A and electric rotating machine B,
The rotation angle of electric rotating machine is controlled, and then changes the stretching/compressing amount of spring, the elastic force of spring is controlled, bearing may be implemented
The load of alternating load.Meanwhile the rotation of rotary shaft is controlled by bearing tester control system, bearing may be implemented with given
Rotation speed operation.The change of electric rotating machine rotation angle is controlled by bearing tester control system, electric rotating machine rotation angle
The change of degree can influence the stretching/compressing amount of spring.Due to the change of the stretching/compressing amount of spring, spring can press from both sides
Tool surface applies of different sizes, direction-agile active force.By adding multiple electric rotating machine-gear teeth in fixture different zones
The load of bearing alternating load may be implemented in strip transmission mechanism-spring assembly.
Compared with prior art, the invention has the advantages that：
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.Help to carry out using the bearing type alternating load loading device and send out
Motivation dynamic load bearing test.
Description of the drawings
Fig. 1 is the alternating load load maintainer schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of rack and pinion drive mechanism A5 of the present invention；
In figure：1 is rotary shaft, and 2 be subject bearing, and 3 be fixture, and 4 be electric rotating machine A, and 5 be rack and pinion drive mechanism A,
51 be gear, and 52 be rack, and 6 be spring A, and 7 be attachment device A, and 8 be attachment device B, and 9 be spring B, and 10 pass for rack-and-pinion
Motivation structure B, 11 be electric rotating machine B.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of bearing tester type alternating load loading device based on rack pinion, the axis
It includes rotary shaft 1 to hold testing machine, and subject bearing 2 is mounted in the rotary shaft 1, which includes fixture 3, and setting
Multiple electric rotating machine-rack and pinion drive mechanism-spring assemblies around fixture 3, the electric rotating machine-rack-and-pinion pass
Motivation structure-spring assembly includes being sequentially connected electric rotating machine, rack and pinion drive mechanism and spring, and electric rotating machine drives gear teeth
Strip transmission mechanism moves, and stretching or compressive deformation occur for control spring, applies alternating load to the subject bearing 2 in fixture 3.
Wherein, there are two the electric rotating machine-rack and pinion drive mechanism-spring assembly is set：Component A and component B is right
Claim to be arranged in about 3 both sides of fixture.The component A includes：Electric rotating machine A4, rack and pinion drive mechanism A5 and spring A6,
The motor A4 is connected by the one end rack and pinion drive mechanism A5 connecting spring A6, the spring A6 other ends by attachment device A7
Welding fixture 3；The component B includes：Electric rotating machine B11, rack and pinion drive mechanism B10 and spring B 9, the motor B11
By the one end rack and pinion drive mechanism B10 connecting spring B9,9 other end of spring B passes through attachment device B8 jockeies 3.
As described in Figure 2, the wheel rack gear A5 includes gear 51 and rack 52, the gear 51 connection rotation
Rotating motor A4, the rack 52 is engaged with gear 51, and connecting spring A6.The knot of the rack and pinion drive mechanism B10
Structure is identical as wheel rack gear A5.
The fixture 3 is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture at bulk, and
The one side that upper fixture and lower fixture fit respectively sets a semicircular indentations, and the circumferential notch being combined into matches with subject bearing 2.
The upper fixture upper surface is plane, is connect with attachment device A7, and a semi-circular recesses are equipped in lower surface, with subject bearing
2 match；The lower surface of lower fixture is plane, is connect with attachment device B8, and upper surface is equipped with a semi-circular recesses, with subject axis
2 are held to match.
The bearing tester further includes control system, the control system and electric rotating machine A4 and electric rotating machine B11 phases
Even, the rotation angle of electric rotating machine is controlled, and then changes the stretching/compressing amount of spring, the elastic force of spring is controlled, axis may be implemented
Hold the load of alternating load.Meanwhile by bearing tester control system control rotary shaft 1 rotation, may be implemented bearing with
Given rotation speed operation.The change of electric rotating machine rotation angle is controlled by bearing tester control system, electric rotating machine rotation
The change of gyration can influence the stretching/compressing amount of spring.Due to the change of the stretching/compressing amount of spring, spring can be with
Apply of different sizes, direction-agile active force in chucking surface.By adding multiple electric rotating machine-teeth in fixture different zones
The load of bearing alternating load may be implemented in wheel rack gear-spring assembly.
Claims (8)
1. a kind of bearing tester type alternating load loading device based on rack pinion, the bearing tester include
Rotary shaft (1), subject bearing (2) are mounted in the rotary shaft (1), which is characterized in that and the loading device includes fixture (3),
And the multiple electric rotating machine-rack and pinion drive mechanism-spring assemblies being arranged around fixture (3), the electric rotating machine-
Rack and pinion drive mechanism-spring assembly includes being sequentially connected electric rotating machine, rack and pinion drive mechanism and spring, electric rotating machine
Rack and pinion drive mechanism movement is driven, stretching or compressive deformation occur for control spring, to the subject bearing (2) in fixture (3)
Apply alternating load.
2. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 1,
It is characterized in that, there are two the electric rotating machine-rack and pinion drive mechanism-spring assembly sets：Component A and component B, symmetrically
Setting is in fixture (3) both sides up and down.
3. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 2,
It is characterized in that, the component A includes：Electric rotating machine A (4), rack and pinion drive mechanism A (5) and spring A (6), it is described
Motor A (4) passes through attachment device A by rack and pinion drive mechanism A (5) connecting spring A (6) one end, spring A (6) other ends
(7) jockey (3)；
The component B includes：Electric rotating machine B (11), rack and pinion drive mechanism B (10) and spring B (9), the motor B
(11) by rack and pinion drive mechanism B (10) connecting spring B (9) one end, spring B (9) other end passes through attachment device B (8)
Jockey (3).
4. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 3,
It is characterized in that, the wheel rack gear A (5) includes gear (51) and rack (52), the gear (51) connection
Electric rotating machine A (4), the rack (52) are engaged with gear (51), and connecting spring A (6).
5. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 3,
It is characterized in that, the structure of the rack and pinion drive mechanism B (10) is identical as wheel rack gear A (5).
6. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 3,
It is characterized in that, the fixture (3) is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture are blocking
Shape, and the one side to fit in upper fixture and lower fixture respectively sets a semicircular indentations, the circumferential notch being combined into and subject bearing
(2) match.
7. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 6,
It is characterized in that, the upper fixture upper surface is plane, it is connect with attachment device A (7), it is semicircle recessed that one is equipped in lower surface
Slot matches with subject bearing (2)；The lower surface of lower fixture is plane, is connect with attachment device B (8), and upper surface is equipped with half
Circular groove matches with subject bearing (2).
8. a kind of bearing tester type alternating load loading device based on rack pinion according to claim 3,
It is characterized in that, the bearing tester further includes control system, the control system and electric rotating machine A (4) and electric rotating machine B
(11) it is connected, meanwhile, the rotary speed of control rotary shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457235.3A CN108593292A (en) | 2017-12-28 | 2017-12-28 | Bearing tester type alternating load loading device based on rack pinion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457235.3A CN108593292A (en) | 2017-12-28 | 2017-12-28 | Bearing tester type alternating load loading device based on rack pinion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108593292A true CN108593292A (en) | 2018-09-28 |
Family
ID=63633578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711457235.3A Withdrawn CN108593292A (en) | 2017-12-28 | 2017-12-28 | Bearing tester type alternating load loading device based on rack pinion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108593292A (en) |
-
2017
- 2017-12-28 CN CN201711457235.3A patent/CN108593292A/en not_active Withdrawn
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| PB01 | Publication | ||
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Application publication date: 20180928 |