CN108020417A - The radially alternating load charger of bearing tester - Google Patents
The radially alternating load charger of bearing tester Download PDFInfo
- Publication number
- CN108020417A CN108020417A CN201711456526.0A CN201711456526A CN108020417A CN 108020417 A CN108020417 A CN 108020417A CN 201711456526 A CN201711456526 A CN 201711456526A CN 108020417 A CN108020417 A CN 108020417A
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- CN
- China
- Prior art keywords
- attachment device
- fixture
- spring
- bearing
- motor
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Classifications
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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 Engines (AREA)
Abstract
The present invention relates to a kind of radially alternating load charger of bearing tester, the bearing tester includes rotation axis (1), bearing (2) is tested to be installed in the rotation axis (1), the loading device includes fixture (3), and the motor and spring assembly that the axially symmetric and radial symmetric of fixture (3) surrounding setting is set, the motor and spring assembly wherein axially and symmetrically set applies the subject bearing (2) in fixture (3) axial alternate load, the motor and spring assembly that radial symmetric is set apply radially alternating load to the subject bearing (2) in fixture (3).Compared with prior art, the present invention has the advantages that to realize internal combustion engine real working condition load.
Description
Technical field
The present invention relates to a kind of loading device of bearing tester, is handed over more particularly, to a kind of radial direction of bearing tester
Varying load loading unit.
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 is difficult to realize engine dynamic load axis with loading device
The alternate load loading held.
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 can realize internal combustion
The radially alternating load charger of the bearing tester of the loading of machine real working condition load.
The purpose of the present invention can be achieved through the following technical solutions：A kind of radially alternating load of bearing tester
Loading device, the bearing tester include rotation axis, and subject bearing is installed in the rotation axis, it is characterised in that should
Loading device includes fixture, and the motor and spring assembly of the axially symmetric and radial symmetric setting of fixture surrounding setting, its
The symmetrically arranged motor of middle axial direction and spring assembly apply the subject bearing in fixture axial alternate load, and radial symmetric is set
Motor and spring assembly radially alternating load is applied to the subject bearing in fixture.
The motor and spring assembly include component A, component B, component C and component D, and wherein component A and component D are axial
Fixture both sides up and down are symmetricly set on, component B and component C radial symmetrics are arranged at left and right sides of fixture.
The component A includes：Linear motor A, attachment device Aa, spring A and attachment device Ab, the motor A lead to
Attachment device Aa connecting spring A one end is crossed, the spring A other ends pass through attachment device Ab jockeies；
Component B includes：Linear motor B, attachment device Ba, spring B and attachment device Bb, the linear motor B pass through
Attachment device Ba connecting spring B one end, the spring B other end pass through attachment device Bb jockeies；
Component C includes：Linear motor C, attachment device Ca, spring C and attachment device Cb, the linear motor C pass through
Attachment device Ca connecting spring C one end, the spring C other ends pass through attachment device Cb jockeies；
Component D includes：Linear motor D, attachment device Da, spring D and attachment device Db, the linear motor D pass through
Attachment device Da connecting spring D one end, the spring D other ends pass through attachment device Db jockeies.
The fixture is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture into 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 connected with attachment device Ab, and a semi-circular recesses are equipped with lower surface, with
Subject bearing matches；The lower surface of lower fixture is plane, is connected with attachment device Db, and upper surface is equipped with a semi-circular recesses,
Match with subject bearing；
After upper fixture and lower fixture closure, left side is connected with attachment device Bb, and right side is connected with attachment device Cb.
The bearing tester further includes control system, the control system and linear motor A, linear motor B, straight-line electric
Machine C, linear motor D are connected, and control the displacement of each motor, and then change the stretching/compressing amount of spring, control the bullet of spring
Power, it is possible to achieve the loading of bearing alternate load, with reference to the real working condition condition of internal combustion engine, linear motor is controlled by computer
Displacement and the variable quantity of time, it is possible to achieve the loading of internal combustion engine real working condition load.Utilize the radially alternating load of the bearing
Loading device helps to carry out engine dynamic load bearing test.
The control rotation axis rotation of bearing tester control system, realizes bearing with given rotation speed operation.Meanwhile straight-line electric
The operation of machine A, linear motor B8, linear motor C and linear motor D are also controlled by bearing tester control system, straight-line electric
The change of machine displacement can influence the stretching/compressing amount of spring.Due to the change of the stretching/compressing amount of spring, spring can
To apply of different sizes, direction-agile active force in chucking surface.By fixture different zones add multiple linear motors-
Spring unit can realize the loading of the radially alternating load of bearing.
Compared with prior art, the present invention has the following advantages：
1st, the displacement of linear motor is controlled by computer, and then changes the stretching/compressing amount 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, the displacement and the change of time of linear motor are controlled by computer
Amount, it is possible to achieve the loading of internal combustion engine real working condition load.Help to carry out using the radially alternating load charger of the bearing
Engine dynamic load bearing test.
Brief description of the drawings
Fig. 1 is the radially alternating load charger schematic diagram of the present invention.
In figure：1 is rotation axis, and 2 be subject bearing, and 3 be fixture, and 4 be linear motor A, and 5 be attachment device Aa, and 6 be spring
A, 7 be attachment device Ab, and 8 be linear motor B, and 9 be attachment device Ba, and 10 be spring B, and 11 be attachment device Bb, and 12 be connection
Device Cb, 13 be spring C, and 14 be attachment device Ca, and 15 be linear motor C, and 16 be attachment device Db, and 17 be spring D, and 18 be company
Connection device Da, 19 be linear motor D.
Embodiment
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 radially alternating load charger of bearing tester, the bearing tester include
Rotation axis 1, subject bearing 2 are installed in the rotation axis 1, which includes fixture 3, and the setting of 3 surrounding of fixture
The motor and spring assembly that axially symmetric and radial symmetric is set, wherein the motor and spring assembly that axially and symmetrically set are to fixture
Subject bearing 2 in 3 applies axial alternate load, and the motor and spring assembly that radial symmetric is set are to the subject axis in fixture 3
Hold the radially alternating load of 2 applications.
The motor and spring assembly include component A, component B, component C and component D, and wherein component A and component D are axial
Being symmetricly set on fixture, about 3 both sides, and component B and component C radial symmetrics are arranged on the left and right sides of fixture 3.
The component A includes：Linear motor A4, attachment device Aa5, spring A6 and attachment device Ab7, the motor
A4 passes through attachment device Ab7 jockeies 3 by attachment device Aa5 connecting spring A6 one end, the spring A6 other ends；
Component B includes：Linear motor B8, attachment device Ba9, spring B 10 and attachment device Bb11, the linear motor
B8 passes through attachment device Bb11 jockeies 3 by attachment device Ba9 connecting spring B10 one end, 10 other end of spring B；
Component C includes：Linear motor C15, attachment device Ca14, spring C13 and attachment device Cb12, the straight-line electric
Machine C15 passes through attachment device Cb12 jockeies 3 by attachment device Ca14 connecting spring C13 one end, the spring C13 other ends；
Component D includes：Linear motor D19, attachment device Da18, spring D17 and attachment device Db16, the straight-line electric
Machine D19 passes through attachment device Db16 jockeies 3 by attachment device Da18 connecting spring D17 one end, the spring D17 other ends.
The fixture 3 is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture into 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 connected with attachment device Ab7, and a semi-circular recesses are equipped with lower surface, with being tested axis
2 are held to match；The lower surface of lower fixture is plane, is connected with attachment device Db16, and upper surface is equipped with a semi-circular recesses, with quilt
Examination bearing 2 matches；After upper fixture and lower fixture closure, left side is connected with attachment device Bb11, right side and attachment device Cb12
Connection.
The bearing tester further includes control system, the control system and linear motor A4, linear motor B8, straight line
Motor C15, linear motor D19 are connected, and control the displacement of each motor, and then change the stretching/compressing amount of spring, control spring
Elastic force, it is possible to achieve the loading of bearing alternate load, with reference to the real working condition condition of internal combustion engine, straight line is controlled by computer
The displacement of motor and the variable quantity of time, it is possible to achieve the loading of internal combustion engine real working condition load.It is radially alternating using the bearing
Load charger helps to carry out engine dynamic load bearing test.
Bearing tester control system control rotation axis 1 rotates, and realizes bearing with given rotation speed operation.Meanwhile straight line
The operation of motor A 4, linear motor B 8, linear motor C 15 and linear motor D 19 are also by bearing tester control system
Control, the change of linear motor displacement can influence the stretching/compressing amount of spring.Since the stretching/compressing amount of spring changes
Become, spring will can apply of different sizes, direction-agile active force in chucking surface.It is more by being added in fixture different zones
A linear motor-spring unit can realize the loading of the radially alternating load of bearing.
Claims (6)
1. a kind of radially alternating load charger of bearing tester, the bearing tester includes rotation axis (1), quilt
Try bearing (2) to be installed in the rotation axis (1), it is characterised in that the loading device includes fixture (3), and fixture (3) four
The motor and spring assembly that the axially symmetric and radial symmetric set in week is set, wherein the motor and groups of springs that axially and symmetrically set
Part applies the subject bearing (2) in fixture (3) axial alternate load, and the motor and spring assembly that radial symmetric is set are to fixture
(3) the subject bearing (2) in applies radially alternating load.
A kind of 2. radially alternating load charger of bearing tester according to claim 1, it is characterised in that institute
The motor and spring assembly stated include component A, component B, component C and component D, and wherein component A and component D are axially and symmetrically arranged on
Both sides, component B and component C radial symmetrics are arranged at left and right sides of fixture (3) fixture (3) up and down.
A kind of 3. radially alternating load charger of bearing tester according to claim 2, it is characterised in that institute
The component A stated includes：Linear motor A (4), attachment device Aa (5), spring A (6) and attachment device Ab (7), the motor A
(4) attachment device Ab (7) jockey is passed through by attachment device Aa (5) connecting spring A (6) one end, spring A (6) other ends
(3)；
Component B includes：Linear motor B (8), attachment device Ba (9), spring B (10) and attachment device Bb (11), the straight line
Motor B (8) passes through attachment device Bb (11) by attachment device Ba (9) connecting spring B (10) one end, spring B (10) other end
Jockey (3)；
Component C includes：Linear motor C (15), attachment device Ca (14), spring C (13) and attachment device Cb (12), described is straight
Line motor C (15) passes through attachment device Cb by attachment device Ca (14) connecting spring C (13) one end, spring C (13) other ends
(12) jockey (3)；
Component D includes：Linear motor D (19), attachment device Da (18), spring D (17) and attachment device Db (16), described is straight
Line motor D (19) passes through attachment device Db by attachment device Da (18) connecting spring D (17) one end, spring D (17) other ends
(16) jockey (3).
A kind of 4. radially alternating load charger of bearing tester according to claim 2, it is characterised in that institute
The fixture (3) stated is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture into bulk, and in upper fixture and
The one side that lower fixture fits respectively sets a semicircular indentations, and the circumferential notch being combined into matches with subject bearing (2).
A kind of 5. radially alternating load charger of bearing tester according to claim 4, it is characterised in that institute
The upper fixture upper surface stated is plane, is connected with attachment device Ab (7), and a semi-circular recesses are equipped with lower surface, with being tested axis
(2) are held to match；The lower surface of lower fixture is plane, is connected with attachment device Db (16), and upper surface is equipped with a semi-circular recesses,
Match with subject bearing (2)；
After upper fixture and lower fixture closure, left side is connected with attachment device Bb (11), and right side is connected with attachment device Cb (12).
A kind of 6. radially alternating load charger of bearing tester according to claim 2, it is characterised in that institute
The bearing tester stated further includes control system, the control system and linear motor A (4), linear motor B (8), linear motor C
(15), linear motor D (19) is connected, and controls the displacement of each motor, meanwhile, the rotary speed of control rotation axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456526.0A CN108020417A (en) | 2017-12-28 | 2017-12-28 | The radially alternating load charger of bearing tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711456526.0A CN108020417A (en) | 2017-12-28 | 2017-12-28 | The radially alternating load charger of bearing tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108020417A true CN108020417A (en) | 2018-05-11 |
Family
ID=62071950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711456526.0A Withdrawn CN108020417A (en) | 2017-12-28 | 2017-12-28 | The radially alternating load charger of bearing tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108020417A (en) |
-
2017
- 2017-12-28 CN CN201711456526.0A patent/CN108020417A/en not_active Withdrawn
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|---|---|---|---|
| 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 |
Application publication date: 20180511 |
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| WW01 | Invention patent application withdrawn after publication |