CN103389208A - High-speed testing machine of offset double-oscillating follower floating swash plate end cam oscillating bearing - Google Patents
High-speed testing machine of offset double-oscillating follower floating swash plate end cam oscillating bearing Download PDFInfo
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- CN103389208A CN103389208A CN2013103065982A CN201310306598A CN103389208A CN 103389208 A CN103389208 A CN 103389208A CN 2013103065982 A CN2013103065982 A CN 2013103065982A CN 201310306598 A CN201310306598 A CN 201310306598A CN 103389208 A CN103389208 A CN 103389208A
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Abstract
The invention discloses a high-speed testing machine of an offset double-oscillating follower floating swash plate end cam oscillating bearing. Double-swash-plate end cams are mounted at spline shaft sections in the middles of high-speed rotating shafts; one end of a high-frequency oscillating shaft I is fixedly connected with an inner ring of a testing oscillating bearing I; an outer ring of the testing oscillating bearing I is fixedly connected with a loading hydraulic cylinder I; and two groups of rolling bearings of a rolling bearing VII, a rolling bearing VIII, a rolling bearing IX and a rolling bearing X of C X-shaped oscillating shafts I and II mounted on an L-shaped fork frame of the high-frequency oscillating shaft I are tangent to swash plate end surfaces of the double-swash-plate end cams respectively. According to the invention, motions and loadings of the two high-speed rotating shafts are symmetrical, the double-swash-plate end cams and the rolling bearings contacted with the double-swash-plate end cams are in a tangent state all the time and are in rolling friction, so that the abrasion is slight, and the noise is low; and the oscillating frequency can reach 70-80 Hz, so that the requirement of a fatigue test of a high-frequency oscillating aviation oscillating bearing can be met.
Description
Technical field
The present invention relates to the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of the moving driven member of a kind of biasing double pendulum.
Background technology
Oscillating bearing is a kind of sliding bearing of special construction, mainly an inner ring with spherical outside surface and the outer ring with Internal Spherical Surface, consists of.The plurality of advantages such as oscillating bearing rotates flexible, non-maintaining, compact conformation because having, is easy to mounting or dismounting, load-bearing capacity is large, the life-span is long, be widely used in the connection of aviation aircraft oscillating structural member.
Aviation aircraft is in flight course, and the inefficacy of any composition member all can cause catastrophic effect.Therefore determine it is a very serious and important job to what aviation aircraft formed the member service life.In order to determine that accurately aviation aircraft forms the service life of member, usually way is aviation aircraft to be formed member carry out torture test under the Reality simulation working condition, then being aviation aircraft divided by a safety coefficient fatigue lifetime of by test, trying to achieve, forms the service life of member.
Oscillating bearing, as one of important composition member of aviation aircraft, also must carry out the torture test under the Reality simulation working condition.Oscillating bearing swinging frequency on some aviation aircraft is very high by (30～70Hz), and the oscillating bearing fatigue tester that China uses at present adopts slider-crank mechanism more, be difficult to realize the transient equilibrium of moving link because of this mechanism, therefore its highest hunting frequency generally is no more than 20Hz, can't meet the requirement of swing in high frequency For The Spherical Plain Bearing torture test, seriously restrict the development of domestic swing in high frequency For The Spherical Plain Bearing.
Summary of the invention
, in order to overcome the oscillating bearing fatigue tester above shortcomings of existing employing slider-crank mechanism, the invention provides the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of the moving driven member of a kind of biasing double pendulum.
The high-speed rotating shaft of this invention and two inclined plate edge cam are dynamic balance structure, and the motion of two high-speed rotating shafts and load are symmetrical, have greatly improved the dynamic property of complete machine.
The technical solution adopted for the present invention to solve the technical problems is: the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of the moving driven member of a kind of biasing double pendulum, comprise rolling bearing I, II, III, IV, V, VI, VII, VIII, IX, X, shaft coupling, motor, test oscillating bearing I, II, loading hydraulic cylinder I, II, sliding bearing I, II, III, IV, it is characterized in that: an end that is bearing in the high-speed rotating shaft on two rolling bearing I, II is connected with motor by shaft coupling, and the two inclined plate edge cam is installed on the splined shaft section at high-speed rotating shaft middle part; Swing in high frequency axle I, II are bearing on four rolling bearing III, IV, V, VI, swing in high frequency axle I, II are identical with the connected mode of test oscillating bearing I, II, loading hydraulic cylinder I, II, L bracket I, II and C fork-shaped axis of swing I, II, wherein, one end of swing in high frequency axle I connects firmly with the inner ring of test oscillating bearing I, and outer ring and the loading hydraulic cylinder I of test oscillating bearing I connect firmly; The other end of swing in high frequency axle I connects firmly the L bracket I, sliding bearing I, II are installed in the dead eye of two coaxial cables on L shaped crotch I, the right cylinder on C fork-shaped axis of swing I top is installed in the dead eye of sliding bearing I, II, and by the cutting ferrule I, is made its axial restraint; On C fork-shaped axis of swing I, II four short horizontals bottom, rolling bearing VII, VIII, IX, X are installed respectively, rolling bearing VII, VIII and the IX, the X that form two groups are tangent with the swash plate end face of two inclined plate edge cam respectively.
, for circumferentially being fixedly connected with, namely can not produce relative motion at circumferencial direction between the two between described high-speed rotating shaft and two inclined plate edge cam, but axially both can free relative motion.
Described two inclined plate edge cam is with respect to the mid point of crossing each swash plate end face mid-plane and high-speed rotating shaft axis two intersection point lines and perpendicular to the plane symmetry of high-speed rotating shaft axis, and between the normal of each swash plate mid-plane of two inclined plate edge cam and high-speed rotating shaft axis, angle is α=5
0～20
0.
The structure of described two C fork-shaped axis of swing I, II is identical, and it is shaped as: top is one section right cylinder, in the right cylinder lower end, is angle theta=10 between an axis and cylinder axis
0～20
0Inclined shaft, the inclined shaft lower end is a transverse axis, there is respectively a vertical pivot at the transverse axis two ends, the axis of every vertical pivot all is parallel to the axis of upper cylinder, every vertical pivot be one section short horizontal vertical with vertical pivot bottom, these two short horizontal axis are parallel to each other and with the high-speed rotating shaft axis, be located in the same horizontal plane.
Described two C fork-shaped axis of swing I, II can be rotated, but can not move axially with respect to L shaped crotch I, II.
The axis of the bearing mounting hole of two coaxial cables on described L shaped crotch I, II is coplanar with swing in high frequency axle axis and be perpendicular to one another.
The present invention compared with prior art has following advantage: 1, high-speed rotating shaft of the present invention and two inclined plate edge cam are dynamic balance structure, namely in high-speed rotating shaft and two inclined plate edge cam rotation process, centrifugal intertia force and centrifugal intertia force square are balanced at high-speed rotating shaft itself, and the block bearing of high-speed rotating shaft is not subjected to centrifugal intertia force and the effect of centrifugal intertia force square.2, the two inclined plate edge cam is rolling friction with the rolling bearing that contacts with it, and friction force is little, light abrasion.3, the motion of two high-speed rotating shafts and load are symmetrical, have greatly improved the dynamic property of complete machine.4, the two inclined plate edge cam is in tangent state all the time with the rolling bearing that contacts with it, therefore impact between the two is little, noise is low.The hunting frequency of this invention can reach 70～80Hz, can meet the requirement of swing in high frequency For The Spherical Plain Bearing torture test.
Description of drawings
Fig. 1 is the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) duty top cross-sectional view of the moving driven member of biasing double pendulum;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the B-B cross-sectional schematic of Fig. 1;
Fig. 4 is C fork-shaped axis of swing part schematic three dimensional views;
Fig. 5 is L shaped crotch part schematic three dimensional views.
in above-mentioned accompanying drawing, 1, 3. rolling bearing VII, VIII, 2, 5.C fork-shaped axis of swing I, II, 4, 6. rolling bearing IX, X, 7, 12. rolling bearing I, II, 8. shaft coupling, 9. motor, 10. high-speed rotating shaft, 11. two inclined plate edge cam, 13, 30. test oscillating bearing I, II, 14, 31. loading hydraulic cylinder I, II, 15, 17, 26, 28. rolling bearing III, IV, V, VI, 16, 27. swing in high frequency axle I, II, 18.L shape support I, 19. cutting ferrule I, 20, 21. sliding bearing I, II, 22, 23. sliding bearing III, IV, 24. cutting ferrule II, 25.L shape support II.
Embodiment
Embodiment
In Fig. 1～moving driven member of a kind of biasing double pendulum shown in Figure 3 floats swash plate edge cam oscillating bearing high-speed tester (HST) working state schematic representation, an end that is bearing in a high-speed rotating shaft 10 on two rolling bearing I, II (7,12) is connected with motor (or oil motor) 9 by shaft coupling 8, a splined shaft section is arranged at the middle part of high-speed rotating shaft 10, a two inclined plate edge cam 11 is installed on the splined shaft section of high-speed rotating shaft 10., for circumferentially being fixedly connected with, namely can not produce relative motion at circumferencial direction between the two between high-speed rotating shaft 10 and two inclined plate edge cam 11, but axially (axis direction of high-speed rotating shaft 10) both can free relative motion.Two inclined plate edge cam 11 is with respect to the mid point of crossing each swash plate end face mid-plane and high-speed rotating shaft 10 axis two intersection point lines and perpendicular to the plane symmetry of high-speed rotating shaft 10 axis, and between the normal of each swash plate mid-plane of two inclined plate edge cam 11 and the axis of high-speed rotating shaft 10, angle is 15
0.Two swing in high frequency axle I, II (16,27) are bearing on four rolling bearing III, IV, V, VI (15,17,26,28), the inner ring of one end of swing in high frequency axle I 16 and a test oscillating bearing I 13 connects firmly, and outer ring and a loading hydraulic cylinder I 14 of test oscillating bearing I 13 connect firmly.the other end of swing in high frequency axle I 16 connects firmly a L bracket I 18, the bearing mounting hole that two coaxial cables are arranged on L shaped crotch I 18, this bearing mounting hole axis is coplanar with swing in high frequency axle I 16 axis and be perpendicular to one another, the sliding bearing I is installed in the bearing mounting hole of two coaxial cables on L shaped crotch I 18, II (20, 21), the inner ring of one end of swing in high frequency axle II 27 and a test oscillating bearing II 30 connects firmly, outer ring and a loading hydraulic cylinder II 31 of test oscillating bearing II 30 connect firmly, the other end of swing in high frequency axle II 27 connects firmly a L bracket II 25, the bearing mounting hole that two coaxial cables are arranged on L shaped crotch II 25, this bearing mounting hole axis is coplanar with swing in high frequency axle II 27 axis and be perpendicular to one another, the sliding bearing III is installed in the bearing mounting hole of two coaxial cables on L shaped crotch II 25, IV (22, 23).Being shaped as of two C fork-shaped axis of swing I, II (2,5): top is one section right cylinder, in the right cylinder lower end, is angle theta=16 between an axis and cylinder axis
0Inclined shaft, the inclined shaft lower end is a transverse axis, there is respectively a vertical pivot at the transverse axis two ends, the axis of every vertical pivot all is parallel to the axis of upper cylinder, every vertical pivot be one section short horizontal vertical with vertical pivot bottom, these two short horizontal axis are parallel to each other and with the high-speed rotating shaft axis, be located in the same horizontal plane.The right cylinder on C fork-shaped axis of swing I 2 tops is bearing on the bearing mounting hole of L shaped crotch I 18 by two sliding bearing I, II (20,21) respectively, and by cutting ferrule I 19, make its axial restraint, be that C fork-shaped axis of swing I 2 can be rotated with respect to L shaped crotch I 18, but can not move axially; The right cylinder on C fork-shaped axis of swing II 5 tops is bearing on the bearing mounting hole of L shaped crotch II 25 by two sliding bearing III, IV (22,23) respectively, and by cutting ferrule II 24, make its axial restraint, be that C fork-shaped axis of swing II 5 can be rotated with respect to L shaped crotch II 25, but can not move axially; Rolling bearing VII, VIII (1,3) are installed respectively on C fork-shaped axis of swing I 2 two short horizontals bottom, rolling bearing VII, VIII (1,3) are tangent with the both ends of the surface of the upside swash plate edge cam of two inclined plate edge cam 11 respectively, on C fork-shaped axis of swing II 5 two short horizontals bottom, rolling bearing IX, X (4,6 are installed respectively,) rolling bearing IX, X (4,6) be tangent with the both ends of the surface of upside (downside) the swash plate edge cam of two inclined plate edge cam 11 respectively.
the course of work of the present invention is as follows: motor 9 drives high-speed rotating shaft 10 by shaft coupling 8 and two inclined plate edge cam 11 rotates, in two inclined plate edge cam 11 rotates the process in a week, by two C fork-shaped axis of swing I, II (2, 5) drive two swing in high frequency axle I, II (16, 27) swing once around self axis reciprocating rotating, connect firmly two swing in high frequency axle I, II (16, 27) two of end test oscillating bearing I, II (13, 30) inner ring is also incited somebody to action reciprocating rotating thereupon and is swung once, with two loading hydraulic cylinder I, II (14, 29) two test oscillating bearing I that connect firmly, II (13, 30) test oscillating bearing I, because the restriction that is subject to loading hydraulic cylinder maintains static, has so just been realized in outer ring, II (13, 30) inner ring is with respect to the reciprocal swing in high frequency of outer ring, two loading hydraulic cylinder I, II (14, 29) give two test oscillating bearing I, II (13, 30) outer ring applies pulling force or pressure, and the pulling force that applies or the size of pressure are by HYDRAULIC CONTROL SYSTEM.Two C fork-shaped axis of swing I, II (2,5) are also swinging around self upper cylinder axis oscillating reciprocating rotating in swing in high frequency axle I, II (16,27) axis reciprocally swinging in this process, therefore be arranged on the rolling on short horizontal bottom of C fork-shaped axis of swing I, II (2,5)
The cylindrical of bearing VII, VIII, IX, X (1,3,4,6) is tangent with the end face of diclinic swash plate edge cam 11 all the time.
Because two inclined plate edge cam 11 can axially move freely with respect to high-speed rotating shaft 10, therefore the load of the axis direction along high-speed rotating shaft 10 that two C fork-shaped axis of swing I, II (2,5) are born equates all the time, thereby has realized two swing in high frequency axle I, the motion of II (16,27) and stressed symmetry.
Claims (6)
1. a biasing double pendulum moves the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of driven member, comprise rolling bearing I, II, III, IV, V, VI, VII, VIII, IX, X, shaft coupling, motor, test oscillating bearing I, II, loading hydraulic cylinder I, II, sliding bearing I, II, III, IV, it is characterized in that: an end that is bearing in the high-speed rotating shaft on two rolling bearing I, II is connected with motor by shaft coupling, and the two inclined plate edge cam is installed on the splined shaft section at high-speed rotating shaft middle part; Swing in high frequency axle I, II are bearing on four rolling bearing III, IV, V, VI, swing in high frequency axle I, II are identical with the connected mode of test oscillating bearing I, II, loading hydraulic cylinder I, II, L bracket I, II and C fork-shaped axis of swing I, II, wherein, one end of swing in high frequency axle I connects firmly with the inner ring of test oscillating bearing I, and outer ring and the loading hydraulic cylinder I of test oscillating bearing I connect firmly; The other end of swing in high frequency axle I connects firmly the L bracket I, sliding bearing I, II are installed in the dead eye of two coaxial cables on L shaped crotch I, the right cylinder on C fork-shaped axis of swing I top is installed in the dead eye of sliding bearing I, II, and by the cutting ferrule I, is made its axial restraint; On C fork-shaped axis of swing I, II four short horizontals bottom, rolling bearing VII, VIII, IX, X are installed respectively, rolling bearing VII, VIII and the IX, the X that form two groups are tangent with the swash plate end face of two inclined plate edge cam respectively.
2. biasing double pendulum according to claim 1 moves the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of driven member, it is characterized in that: between described high-speed rotating shaft and two inclined plate edge cam for circumferentially being fixedly connected with, namely can not produce relative motion at circumferencial direction between the two, but axially both can free relative motion.
3. biasing double pendulum according to claim 1 moves the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of driven member, it is characterized in that: described two inclined plate edge cam is with respect to the mid point of crossing each swash plate end face mid-plane and high-speed rotating shaft axis two intersection point lines and perpendicular to the plane symmetry of high-speed rotating shaft axis, and between the normal of each swash plate mid-plane of two inclined plate edge cam and high-speed rotating shaft axis, angle is α=5
0～20
0.
4. biasing double pendulum according to claim 1 moves the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of driven member, it is characterized in that: the structure of described two C fork-shaped axis of swing I, II is identical, its structure is: top is one section right cylinder, in the right cylinder lower end, is angle theta=10 between an axis and cylinder axis
0～20
0Inclined shaft, the inclined shaft lower end is a transverse axis, there is respectively a vertical pivot at the transverse axis two ends, the axis of every vertical pivot all is parallel to the axis of upper cylinder, every vertical pivot be one section short horizontal vertical with vertical pivot bottom, these two short horizontal axis are parallel to each other and with the high-speed rotating shaft axis, be located in the same horizontal plane.
5. biasing double pendulum according to claim 4 moves the unsteady swash plate edge cam oscillating bearing high-speed tester (HST) of driven member, it is characterized in that: described two C fork-shaped axis of swing I, II can be rotated, but can not move axially with respect to L shaped crotch I, II.
6. the moving driven member of the biasing double pendulum according to claim 1 swash plate edge cam oscillating bearing high-speed tester (HST) that floats is characterized in that: the axis of the bearing mounting hole of two coaxial cables on described L shaped crotch I is coplanar with swing in high frequency axle axis and be perpendicular to one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103065982A CN103389208A (en) | 2013-07-22 | 2013-07-22 | High-speed testing machine of offset double-oscillating follower floating swash plate end cam oscillating bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103065982A CN103389208A (en) | 2013-07-22 | 2013-07-22 | High-speed testing machine of offset double-oscillating follower floating swash plate end cam oscillating bearing |
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| CN103389208A true CN103389208A (en) | 2013-11-13 |
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|---|---|---|---|
| CN2013103065982A Pending CN103389208A (en) | 2013-07-22 | 2013-07-22 | High-speed testing machine of offset double-oscillating follower floating swash plate end cam oscillating bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344954A (en) * | 2014-10-28 | 2015-02-11 | 燕山大学 | Fatigue test machine for self lubricating joint bearing in flexible propeller hub rotor wing |
| CN106814663A (en) * | 2016-11-05 | 2017-06-09 | 沈阳工业大学 | Laboratory dynamical system test device and method |
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| CN201311350Y (en) * | 2008-05-26 | 2009-09-16 | 上海市轴承技术研究所 | High-speed radial reciprocating-oscillation tester |
| CN201575908U (en) * | 2009-11-27 | 2010-09-08 | 洛阳工铭机电设备有限公司 | Airplane slat sliding joint bearing analysis device |
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2013
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Patent Citations (5)
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|---|---|---|---|---|
| SU1174810A1 (en) * | 1983-06-14 | 1985-08-23 | Предприятие П/Я Г-4517 | Machine for testing needle cardan bearings |
| DE10217612A1 (en) * | 2002-04-19 | 2003-11-06 | Bayerische Motoren Werke Ag | Ball joint bearing play measurement device comprises a measurement bracket mounted on the free end of the ball journal so that it can measure relative displacement of journal and joint housing when a force is applied |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344954A (en) * | 2014-10-28 | 2015-02-11 | 燕山大学 | Fatigue test machine for self lubricating joint bearing in flexible propeller hub rotor wing |
| CN104344954B (en) * | 2014-10-28 | 2016-11-30 | 燕山大学 | The fatigue machine of the self-lubricating knuckle bearing in flexible hub rotor |
| CN106814663A (en) * | 2016-11-05 | 2017-06-09 | 沈阳工业大学 | Laboratory dynamical system test device and method |
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Application publication date: 20131113 |