CN109612725A - A kind of biaxial loadings bidirectional swinging bearing tester based on resilient support - Google Patents
A kind of biaxial loadings bidirectional swinging bearing tester based on resilient support Download PDFInfo
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- CN109612725A CN109612725A CN201910066759.2A CN201910066759A CN109612725A CN 109612725 A CN109612725 A CN 109612725A CN 201910066759 A CN201910066759 A CN 201910066759A CN 109612725 A CN109612725 A CN 109612725A
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- bearing
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- resilient support
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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
Abstract
The present invention discloses a kind of biaxial loadings bidirectional swinging bearing tester based on resilient support.Subject bearing axially and radially independently can be loaded and be swung, and subject bearing is mounted on the infall of cross axle tooling.The every axis of cross axle tooling is installed on bearing block, the bearing block is all made of elastic slat support, linear load is loaded on corresponding bearing block, elastic slat has lesser rigidity in the axial direction of bearing block, for flexible support, it is rigid support that elastic slat, which has biggish rigidity in the radial direction of bearing block, do not interfered each other between biaxial loadings and bidirectional swinging, subject bearing can realize orthogonal two-way independent loads and movement.
Description
Technical field
The present invention relates to a kind of biaxial loadings bidirectional swinging bearing tester based on resilient support.The testing machine can basis
Experiment needs freely to configure the type and number of load, and the bearing fatigue test data under a variety of test requirements documents can be obtained.Accurately
Simulate bearing suffered load at work, the service life of overall merit bearing and performance.
Technical background
Self-lubricating knuckle bearing is mainly made of the outer ring of Internal Spherical Surface and one inner ring of spherical outside surface by one, is answered extensively
For industries such as aviation machine, forging machine tool, water conservancy machineries, fatigue life and reliability are that self-lubricating knuckle bearing is most important
Performance.
Self-lubricating knuckle bearing testing machine is usually by loading mechanism, transmission mechanism and testing agency's composition, specific structure shape
Formula multiplicity, for the testing machine such as " experimental machine for evaluating impact-loading type tribological performance of joint bearing " of self-lubricating knuckle bearing
(Chinese patent CN103076178) discloses that a kind of subject bearing axially rotates, the tribological property inspection of radial impact load
Survey machine." a kind of durability experiment and testing stand of self-lubricating knuckle bearing " (Chinese patent CN105277366) discloses one
The joint bearing testing machine that skimming wear and abrasion of verting can be completed at the same time by kind.The joint shaft of different type, structure and function
It holds, stress and forms of motion multiplicity are tested bearing at present and realize biaxial loadings and bidirectional swinging, Orthogonal Double in identical platform
Do not interfered each other to movement, domestic and international correlative study is very few.
Summary of the invention
The purpose of the invention is to comprehensive simulation bearing suffered load at work, the service life of accurate evaluation bearing and
Performance parameter provides a kind of biaxial loadings bidirectional swinging bearing tester based on resilient support.The testing machine can carry out simultaneously
Biaxial loadings and bidirectional swinging, orthogonal bidirectional-movement also can be carried out independently, or need freely to configure the type of load according to experiment
And number.
In order to achieve the above objectives, insight of the invention is that
A kind of biaxial loadings bidirectional swinging bearing tester based on resilient support.Comprising cross axle tooling, resilient support and drive
Motivation structure.
The structure of above-mentioned cross axle tooling is: cross axle tooling is made of two axis intersections, and subject bearing is mounted on cross
Bearing outer ring is fixed in cross axle tooling by the infall of axis tooling, subject bearing radial through pressing plate, and subject bearing is axial
It is fixed by the shaft shoulder of mandrel, cross axle is mounted on four bearing blocks, the beneficial effect is that subject bearing both direction adds
It carries and the swing of both direction is transmitted by four axis of cross axle respectively.
Above-mentioned driving mechanism includes two linear driving mechanisms and two swing driving mechanisms, and four driving mechanisms are orthogonal
Arrangement is respectively acting on the bearing block where the every axis of cross axle, provides required load to be tested the radial and axial both ends of bearing
Lotus.Linear driving mechanism is connected with first bearing seat and fourth bearing seat, and bearing block is provided with rolling bearing, its advantages
It is the linear loading of cross axle not by the interference for swinging load；Swing driving mechanism and second bearing seat and 3rd bearing seat phase
Even, using the compensation of the forms such as including but not limited to yielding coupling, elastic ring and flexible support since linear loading movement is brought
Axial deviation, the beneficial effect is that the swing load of cross axle is not by the interference of linear loading.
The structure of above-mentioned resilient support is: the every axis of cross axle is mounted on bearing block, is used to support the four of cross axle tooling
A bearing block is all made of elastic slat support, and linear load is loaded on corresponding bearing block, and elastic slat is in the bearing block
Axial tension compressive strain and rigidity are smaller, are flexible support, elastic slat is in the radial tension compressive strain of the bearing block and rigidity
It is larger, it is rigid support, the line of another axis orthogonal with the linear load has been isolated in the rigid support of its advantages direction
Property load, orthogonal biaxial loadings and movement it is mutually isolated, do not interfered each other.
Conceived according to foregoing invention, the present invention adopts the following technical solutions:
A kind of biaxial loadings bidirectional swinging bearing tester based on resilient support is flexibly supported and is driven comprising cross axle tooling
Mechanism, it is characterised in that: the cross axle tooling is made of two axial crosses intersection, and subject bearing is mounted on two axis infalls,
Wherein an axis is connected firmly with subject bearing outer ring, and another axis is connected firmly with subject bearing inner race；The resilient support is used to support ten
Four bearing blocks of word axis tooling；The driving mechanism include two linear driving mechanisms and two swing driving mechanisms, four
A driving mechanism is orthogonal arrangement, and described two linear driving mechanisms are respectively acting on the bearing block where the every axis of cross axle,
Radial and axial required load is provided for subject bearing, described two swing driving mechanisms are respectively acting on cross axle, make to be tested
Bearing is around radial and axial swing；Then it is tested axially and radially independently being loaded and be swung for bearing.
The resilient support is supported using elastic slat, is used to support four bearing blocks, and isolation is applied on subject bearing
Axially and radially load, the elastic slat the bearing block axial deformation be elastic slat bending deformation, rigidity compared with
It is small, axial load cannot be born；For elastic slat in the radial deformation category tension and compression deformation of the bearing block, rigidity is larger, can bear
Radial load.
The elastic slat needs to configure elastic slat quantity, rigidity and arrangement form, elastic slat support according to test
The arrangement form of bearing block includes spatially lower support and horizontally-supported form.
Movement and load between the coaxial linear driving mechanism and swing driving mechanism use isolation technology, make phase
It is mutually independent；Linear driving mechanism swings load by the rolling bearing isolation in bearing block, and swing driving mechanism is using elasticity connection
The load of axis device or elastic ring or resilient support mode isolation linear driving mechanism.
The present invention and the comparison of existing bearing tester technology, advantage are significant: the testing machine is able to achieve the double of subject bearing
To load and bidirectional swinging, the axial direction for being tested bearing independently can be loaded and be swung with radial, and orthogonal moves each other
Do not interfered, can according to need the type and number for freely configuring load, obtains the bearing fatigue examination under a variety of test requirements documents
Test data, accurate simulation bearing suffered load at work, the service life of overall merit bearing and performance have test function more
Sample, modularized design and it is compact-sized the advantages that.
Detailed description of the invention
Fig. 1 is a kind of biaxial loadings bidirectional swinging bearing tester principle schematic diagram based on resilient support.
Fig. 2 is that swing driving mechanism connect exemplary construction schematic diagram with elastic ring.
Fig. 3 is that three layers of elastic slat staggeredly support exemplary construction schematic diagram.
Fig. 4 is that three layers of elastic slat staggeredly support exemplary construction axonometric drawing.
Fig. 5 is the vertical flexible support example axonometric drawing of the double-deck support.
In above-mentioned attached drawing: 1. radially wobble driving mechanism, 2. radial elastic shaft couplings, 3. pedestals, 4. connection sleeves, and 5.
Axial linear driving mechanism, 6-1. axial elasticity lath, 6-2. radial elastic lath, 7. distance sleeves, 8. first bearing seats, 9.
Second bearing seat, 10. bearing plates, 11. cross axle toolings, 12. subject bearings, 13. 3rd bearing seats, 14. connecting flanges,
15. axial elasticity shaft coupling, 16. axial wobble driving mechanisms, 17. tensioning nuts, 18. fourth bearing seats, 19. connecting flanges,
20. radial linear driving mechanism, 21. mandrels；
2A. radial elastic ring, 15A. axial elasticity ring；
3A. pedestal, the upper layer 6A. elastic slat, 6B. middle elastic lath, 6C. lower layer elastic slat；
The upper layer 3B. support, 3C. lower layer support, the upper layer 6D. elastic slat, 6E. lower layer elastic slat.
Specific embodiment
Details are as follows for the preferred embodiment of the present invention combination attached drawing:
Embodiment one:
Include cross axle tooling 11, elasticity based on the biaxial loadings bidirectional swinging bearing tester of resilient support referring to Fig. 1
Support and driving mechanism.It is characterized by: the cross axle tooling 11 is made of two axis intersections, subject bearing 12 is mounted on
Bearing outer ring is fixed on cross axle tooling 11 radial through subject bearing plate 10 by the infall of cross axle tooling, subject bearing
On, it is fixed axially through the shaft shoulder of mandrel 21, tensioning nut 17 is used to adjust the installation site of subject bearing 11, cross axle installation
On four bearing blocks 8,9,13 and 18.
Linear load is applied to first bearing seat 8 by axial linear driving mechanism 5, and bearing block is provided with rolling bearing, is led to
Crossing rolling bearing, radially the loaded radial direction that linear load is applied to subject bearing 12, axial wobble driving mechanism 16 pass through axial direction
Yielding coupling 15 is that subject bearing 12 provides axial wobble, and linear load will by the built-in rolling bearing of first bearing seat 8
Load isolation is swung, makes linear loading movement is independent do not interfered.
Radially wobble driving mechanism 1 and second bearing seat 9 is applied to for load is swung by radial elastic shaft coupling 2, it is radial
Yielding coupling is used to compensate the other end linear loading bring axial deviation due to the axis, swings load and passes through radial elastic
Shaft coupling 2 is isolated by linear load, and pendulum motion is made independently to carry out not interfered.
Four bearing blocks 8,9,13 and 18 are all made of elastic slat support, by taking first bearing seat 8 as an example, using two levels
The axial elasticity lath 6-1 of arrangement is supported, linear loading of the bearing block by axial linear driving mechanism 5, axial elasticity plate
6-1 is smaller in the axial tension compressive strain of the bearing block and rigidity, is flexible support, and linear load acts on bearing block 8 simultaneously
Subject bearing 12 is passed to, where the load transmission to orthogonal to that another linear load on the elastic slat 6-1 of bearing block,
The elastic slat tension compressive strain of the direction and rigidity are larger, are rigid support, therefore the load of axial linear driving mechanism 5 not shadow
The load of radial direction linear driving mechanism 20 is rung, similarly, the load of radial linear driving mechanism 20 does not influence spool tropism driving machine
The load of structure 5 realizes that the orthogonal bidirectional-movement of subject bearing is mutually isolated, do not interfered each other, then be tested bearing 12 axial direction and
It is radial independently to be loaded and be swung.
Embodiment two:
Referring to fig. 2, the present embodiment is basically the same as the first embodiment, the difference is that: swing driving mechanism and linear driver
The isolated form of structure.Fig. 2 is that swing driving mechanism connect exemplary construction schematic diagram with elastic ring, with elastic ring 2A, 15A generation respectively
For the yielding coupling 2,15 in example one.By taking radial elastic ring 2A as an example, carried by the swing for radially wobbling driving mechanism 1
Lotus, axially tension compressive strain and rigidity are smaller for the elastic ring, and the load of radial linear driving mechanism 20 is isolated with this, makes to put
Dynamic movement is independent do not interfered.
Embodiment three:
Referring to Fig. 3 and Fig. 4, the present embodiment is basically the same as the first embodiment, the difference is that: the arrangement form of elastic slat.
Fig. 3 is that three layers of elastic slat staggeredly support exemplary construction schematic diagram, and Fig. 4 is that three layers of elastic slat staggeredly support exemplary construction axis to survey
Figure.When elastic slat length is not able to satisfy test requirements document, the length of elastic slat is lengthened, it can be by three layers of cloth of elastic slat point
It sets, as shown in figure 4, second bearing seat and fourth bearing seat use the branch shaped like upper layer elastic slat 6A and lower layer elastic slat 6C
Support form, first bearing seat and 3rd bearing seat use the supporting form shaped like middle elastic lath 6B.
Example IV:
Referring to Fig. 5, the present embodiment is basically the same as the first embodiment, the difference is that: the arrangement form of elastic slat.Fig. 5 is
The double-deck vertical flexible support example axonometric drawing of support, four bearing blocks are all made of the vertical flexible support of the double-deck support, and bearing block connects
It connects between upper and lower level elastic slat.By taking 3rd bearing seat 13 as an example, upper layer elastic slat 6D is connected with upper layer support 3B, under
Layer elastic slat 6E is connected with lower layer support 3C.
Claims (4)
1. a kind of biaxial loadings bidirectional swinging bearing tester based on resilient support includes cross axle tooling (11), elasticity branch
Support and driving mechanism, it is characterised in that: the cross axle tooling (11) is made of two axial crosses intersection, subject bearing (12) peace
Mounted in two axis infalls, wherein an axis is connected firmly with subject bearing (12) outer ring, another axis is connected firmly with subject bearing (12) inner ring；Institute
The resilient support stated is used to support four bearing blocks (8,9,13,18) of cross axle tooling (11)；The driving mechanism includes
Two linear driving mechanisms (5,20) and two swing driving mechanisms (1,16), four driving mechanisms are orthogonal arrangement, and described two
A linear driving mechanism (5,20) is respectively acting on the bearing block (8,18) where the every axis of cross axle, mentions for subject bearing (12)
For radial and axial required load, described two swing driving mechanisms (1,16) are respectively acting on cross axle, make to be tested bearing
(12) around radial and axial swing；Then it is tested axially and radially independently being loaded and be swung for bearing (12).
2. the biaxial loadings bidirectional swinging bearing tester according to claim 1 based on resilient support, it is characterised in that:
The resilient support is supported using elastic slat (6-1,6-2), is used to support four bearing blocks (8,9,13,18), and isolation applies
Axially and radially load in subject bearing (12), the elastic slat (6-1,6-2) are in the axial deformation of the bearing block
The bending deformation of elastic slat, rigidity is smaller, cannot bear axial load；Diameter of the elastic slat (6-1,6-2) in the bearing block
Belong to tension and compression deformation to deformation, rigidity is larger, can bear radial load.
3. according to claim 1 or the biaxial loadings bidirectional swinging bearing tester as claimed in claim 2 based on resilient support,
It is characterized by: the elastic slat (6-1,6-2), needs to configure elastic slat quantity, rigidity and arrangement form according to test,
The arrangement form of elastic slat supporting bearing base (8,9,13,18) includes spatially lower support and horizontally-supported form.
4. the biaxial loadings bidirectional swinging bearing tester according to claim 1 based on resilient support, it is characterised in that:
Movement and load between the coaxial linear driving mechanism (5,20) and swing driving mechanism (1,16) use isolation technology,
Make mutually indepedent；Linear driving mechanism (5,20) swings load, swing driving mechanism by the rolling bearing isolation in bearing block
(1,16) using yielding coupling or elastic ring or the load of resilient support mode isolation linear driving mechanism (5,20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066759.2A CN109612725B (en) | 2019-01-24 | 2019-01-24 | Bidirectional loading bidirectional oscillating bearing testing machine based on elastic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066759.2A CN109612725B (en) | 2019-01-24 | 2019-01-24 | Bidirectional loading bidirectional oscillating bearing testing machine based on elastic support |
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| Publication Number | Publication Date |
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| CN109612725A true CN109612725A (en) | 2019-04-12 |
| CN109612725B CN109612725B (en) | 2020-12-15 |
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| CN201910066759.2A Active CN109612725B (en) | 2019-01-24 | 2019-01-24 | Bidirectional loading bidirectional oscillating bearing testing machine based on elastic support |
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Cited By (5)
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| CN110617963A (en) * | 2019-11-13 | 2019-12-27 | 浙江省机电设计研究院有限公司 | Wide-temperature-range four-dimensional driving joint bearing testing machine |
| CN110631830A (en) * | 2019-09-23 | 2019-12-31 | 清华大学 | Radial rigidity measuring device for rolling bearing |
| CN111207926A (en) * | 2019-12-27 | 2020-05-29 | 三明学院 | Fault diagnosis method based on rolling bearing, electronic device and storage medium |
| CN112903291A (en) * | 2021-01-22 | 2021-06-04 | 东南大学 | Bearing swing rigidity detection device and test method |
| CN114111464A (en) * | 2021-11-12 | 2022-03-01 | 沈阳航天新光集团有限公司 | Normal phase double-shaft swinging device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631830A (en) * | 2019-09-23 | 2019-12-31 | 清华大学 | Radial rigidity measuring device for rolling bearing |
| CN110631830B (en) * | 2019-09-23 | 2020-09-29 | 清华大学 | Radial rigidity measuring device for rolling bearing |
| CN110617963A (en) * | 2019-11-13 | 2019-12-27 | 浙江省机电设计研究院有限公司 | Wide-temperature-range four-dimensional driving joint bearing testing machine |
| CN111207926A (en) * | 2019-12-27 | 2020-05-29 | 三明学院 | Fault diagnosis method based on rolling bearing, electronic device and storage medium |
| CN111207926B (en) * | 2019-12-27 | 2022-02-01 | 三明学院 | Fault diagnosis method based on rolling bearing, electronic device and storage medium |
| CN112903291A (en) * | 2021-01-22 | 2021-06-04 | 东南大学 | Bearing swing rigidity detection device and test method |
| CN112903291B (en) * | 2021-01-22 | 2022-07-22 | 东南大学 | Bearing swing rigidity detection device and test method |
| CN114111464A (en) * | 2021-11-12 | 2022-03-01 | 沈阳航天新光集团有限公司 | Normal phase double-shaft swinging device |
| CN114111464B (en) * | 2021-11-12 | 2023-11-07 | 沈阳航天新光集团有限公司 | Positive intersection double-shaft swinging device |
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Effective date of registration: 20221026 Address after: 23-3, No. 988, Gangcheng Avenue, Shengang Street, Jiangyin City, Wuxi City, Jiangsu Province, 214400 Patentee after: Jiangyin Runcheng Electromechanical Technology Co.,Ltd. Address before: 200444 No. 99, upper road, Shanghai, Baoshan District Patentee before: Shanghai University |
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