CN104155109A - Working condition simulation testing machine for bearing of dual-mass flywheel - Google Patents
Working condition simulation testing machine for bearing of dual-mass flywheel Download PDFInfo
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- CN104155109A CN104155109A CN201410368276.5A CN201410368276A CN104155109A CN 104155109 A CN104155109 A CN 104155109A CN 201410368276 A CN201410368276 A CN 201410368276A CN 104155109 A CN104155109 A CN 104155109A
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Abstract
The invention relates to a working condition simulation testing machine for a bearing of a dual-mass flywheel. The testing machine comprises a machine seat, a workpiece fixing device, a temperature control device and an axial loading mechanism, wherein the workpiece fixing device is mounted on the machine seat, the temperature control device is used for controlling the workpiece environmental temperature, and the axial loading mechanism is used for exerting axial impact load on a workpiece; the workpiece fixing device comprises workpiece fixing seats, an inner ring swing core shaft used for fixedly assembling workpiece inner rings, and outer ring swing gravity plates fixedly connected with workpiece outer rings; the inner ring swing core shaft is moveably and rotationally mounted on the workpiece fixing seats; the inner ring swing core shaft is connected with an inner ring driving mechanism used for driving the inner ring swing core shaft to swing by a certain angle; the outer ring swing gravity plates are connected with an outer ring driving mechanism used for driving the outer ring swing gravity plates to swing by a certain angle. According to the testing machine provided by the invention, the property detection on the bearing of the double mass flywheel under the working condition can be realized, so that the quality of the bearing can be detected conveniently, and the optimization and improvement of the bearing are facilitated; besides, the testing machine has the advantages that the experimental reliability is excellent, and the accuracy is good.
Description
Technical field
The present invention relates to test unit, be specifically related to bearing work condition simulating test machine for double mass flywheel, for the fail-test under bearing applying working condition for simulated dual mass flywheel.
Background technology
Double mass flywheel, is the new configuration occurring on automobile the end of the eighties in last century, and english abbreviation is called DMFW(double mass flywheel), it has very large effect for vibration isolation and the vibration damping of automobile power-transmission system.Double mass flywheel centre bearer is one of main load bearing component, and the reliability of its work plays vital effect to the normal work of double mass flywheel.Bearing in double mass flywheel is conventionally in hot environment, and Internal and external cycle can carry out rotating (wobble frequency is to 100Hz) and wide-angle low frequency rotates relative to low-angle high frequency simultaneously, and has under the operating modes such as radial load and axial impact loading and work; Bearing ordinary life must meet 20000 working hours, and between the operating period, sealing needs assurance reliable, and bearing is in the regulation degree of wear.Wherein approximately 99% relatively rotate <10o(high frequency for Internal and external cycle), the about 100N of radial load that the parts deadweights such as flywheel produce; Approximately 1% relatively rotates about 100o(low frequency for Internal and external cycle), bear the about 3000N of axial impact loading that clutch separation produces, bear the about 100N of radial load that the parts deadweights such as flywheel produce simultaneously.
At present, the device of not testing by the serviceable life under bearing applying working condition and reliability for double mass flywheel in prior art, cannot understand the reliability of bearing and quality, make the quality inspection of bearing and optimization be limited to, be unfavorable for bearing performance to improve the bearing improvement in serviceable life.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide bearing work condition simulating test machine for a kind of double mass flywheel, realization is to the Performance Detection under the applying working condition of bearing for double mass flywheel, be convenient to the quality of bearing to test, conveniently bearing is optimized to improvement, there is test reliability good, the advantage that accuracy is good.
For achieving the above object, the invention provides following technical scheme: bearing work condition simulating test machine for a kind of double mass flywheel, it is characterized in that: include support, and be arranged on the Work fixing device on support, for controlling the attemperating unit of workpiece environment temperature, workpiece is applied to the axial load maintainer of axial impact loading, described Work fixing device includes workpiece fixing seat, inner ring for the fixing assembling of workpiece inner ring swings mandrel, and the outer ring being fixedly connected with workpiece outer ring swings gravity disk, inner ring swing mandrel moving fit in workpiece fixing seat rotatable, inner ring swings mandrel and is connected with the inner ring driving mechanism that drives inner ring swing mandrel to swing at an angle, outer ring swings gravity disk and is connected with the outer ring driving mechanism that drives outer ring swing gravity disk to swing at an angle.
By adopting technique scheme, the inner ring of workpiece (double mass flywheel bearing) is fixedly assemblied in inner ring and swings on mandrel, outer ring swings gravity disk and is fixedly connected with workpiece outer ring, and realization provides stable radial load to workpiece, and through inner ring driving mechanism, outer ring driving mechanism drives respectively inner ring to swing mandrel, outer ring swings gravity disk, make workpiece in, outer ring swing at an angle, the rotation Work condition analogue of realization to workpiece, and pass through attemperating unit, axially load maintainer is realized the Work condition analogue under workpiece environment temperature and axial impact loading, realize good workpiece Work condition analogue test, there is analog reslt and actual use error is little, result is accurate, can be according to the wear of work degree after the test of workpiece Work condition analogue and observation and the detection of sealing, thereby realize the detection of workpiece quality, and be convenient to workpiece to study and specific aim improvement design.
The present invention is further set to: described inner ring driving mechanism includes inner ring drive motor, inner ring drives coupling shaft, inner ring swing connecting bar and inner ring swing arm, described inner ring swing arm is fixedly mounted on inner ring and swings on mandrel, described inner ring drives coupling shaft to drive and be connected with inner ring drive motor, described inner ring swing connecting bar one end and inner ring swing arm are articulated and connected, the inner ring swing connecting bar other end is with inner ring driving coupling shaft and can drives on coupling shaft by the counterrotating moving inner ring that fits over, and inner ring swing connecting bar is skew inner ring and drives the inner ring that is eccentrically set on of coupling shaft rotary middle spindle to drive on coupling shaft.
By adopting technique scheme, inner ring drive motor drives inner ring to drive coupling shaft rotation, inner ring drives coupling shaft to drive the inner ring swing connecting bar of eccentric setting to become axial reciprocating to move, inner ring swing connecting bar swings mandrel reciprocally swinging at an angle through inner ring swing arm driving inner ring, thereby realize the rotation that simulation workpiece inner ring is certain frequency, angle, through the rotary actuation inner ring of motor, swing the reciprocally swinging of mandrel certain angle, inner ring driving mechanism drives reliable and stable, simple in structure.
The present invention is further set to: described outer ring driving mechanism includes outer ring drive motor, outer ring drives coupling shaft, outer ring swing connecting bar and outer ring swing linkage unit, described outer ring drives coupling shaft to drive and be connected with outer ring drive motor, Cheng Yu outer ring, swing connecting bar one end, described outer ring drives coupling shaft to drive on coupling shaft the counterrotating moving outer ring that fits over, and outer ring swing connecting bar is skew outer ring and drives the inner ring that is eccentrically set on of coupling shaft rotary middle spindle to drive on coupling shaft, the described outer ring swing connecting bar other end swings linkage unit and outer ring and swings gravity disk and be connected and realize outer ring swing gravity disk and swing at an angle through outer ring.
By adopting technique scheme, outer ring drive motor drives outer ring to drive coupling shaft rotation, outer ring drives coupling shaft to drive the outer ring swing connecting bar of eccentric setting to become axial reciprocating to move, inner ring swing connecting bar swings linkage unit and drives outer ring to swing gravity disk reciprocally swinging at an angle through outer ring, thereby realize the rotation that simulation workpiece outer ring is certain frequency, angle, through the rotary actuation outer ring of motor, swing the reciprocally swinging of gravity disk certain angle, outer ring driving mechanism drives reliable and stable, simple in structure.
The present invention is further set to: described outer ring swings linkage unit and includes outer ring axis of swing, outer ring swings shift fork seat and outer ring swinging fork, described outer ring swing connecting bar is hinged on outer ring with respect to the other end that drives coupling shaft to be connected one end with outer ring and swings on shift fork seat, described outer ring swings shift fork seat and is fixedly mounted on the axis of swing of outer ring with respect to the other end with hinged one end of swing connecting bar, outer ring, outer ring axis of swing and inner ring swing mandrel and are arranged in parallel, outer ring axis of swing is assemblied in workpiece fixing seat rotatable, described outer ring swinging fork includes fixed part and shift fork arm, the fixed part of described outer ring swinging fork is fixedly mounted on outer ring and swings on shift fork seat, shift fork arm one end of outer ring swinging fork is connected with fixed part, the shift fork arm other end is provided with declutch shift shaft, described outer ring swings gravity disk and is provided with the radially guide groove offering along outer ring swing gravity disk radial direction, radially radially guide groove slippage in guide groove described in declutch shift shaft is plugged in, and declutch shift shaft and radial guiding cell wall swing butt interlock in gravity disk sense of rotation in outer ring.
By adopting technique scheme, outer ring swings the effect that shift fork seat plays rocking arm, outer ring swing connecting bar drives outer ring to swing shift fork seat and swings on the axis of swing of outer ring, thereby drive outer ring swinging fork to swing, the declutch shift shaft of outer ring swinging fork is along radially guide groove slip, and stir the swing of outer ring swing gravity disk, and it is reliable and stable that outer ring swing connecting bar and outer ring swing being connected of gravity disk, and outer ring swings linkage unit compact conformation.
The present invention is further set to: outer ring wobble drive rolling bearing is installed on described declutch shift shaft, and outer ring wobble drive rolling bearing is assemblied in the radially interior also radially guide groove rolling of guide groove.
By adopting technique scheme, declutch shift shaft coordinates with guide groove radially by bearing, weares and teares little, and allows declutch shift shaft radially in guide groove, relatively rotating, and declutch shift shaft drives outer ring swing gravity disk steadily reliable.
The present invention is further set to: described inner ring swings the axial two ends of mandrel and is equipped with one for the test station of workpiece assembling test, inner ring swings the test station at the axial two ends of mandrel all to there being an outer ring to swing gravity disk, the fixed part of described outer ring swinging fork is provided with two shift fork arms, on two shift fork arms, is equipped with described declutch shift shaft.
By adopting technique scheme, adopt two test station settings, improve testing efficiency, the axial end positions that the respectively corresponding inner ring of two test station swings mandrel, realizes two workpiece inner rings and synchronously drives, and the outer ring of two test station swing gravity disk is realized by two shift fork arms on the swinging fork of outer ring, realizing two workpiece outer rings synchronously drives, there is compact conformation, and double setting, balance is better.
The present invention is further set to: described axial load maintainer includes axial loading motor, axial loading arm, loading arm mount pad, load seat and eccentric wheel assembly, the described seat that loads is fixed on the axial centre position that outer ring swings gravity disk, described loading arm mount pad is fixedly mounted in workpiece fixing seat, axially loading arm is hinged on loading arm mount pad and is lever-like, axially loading arm forms and divides loading end and the drive end that is located at pin joint both sides, axially the loading end of loading arm compresses and coordinates with loading seat, axially the drive end of loading arm drives and is connected with axial loading motor through eccentric wheel assembly.
By adopting technique scheme, motor shaft rotates, through eccentric wheel assembly driving axial loading arm, being lever-like swings, axially the loading end of loading arm compresses and loads seat, top is pressed outer ring to swing gravity disk workpiece is applied to axial load, adopt motor to coordinate eccentric wheel assembly, lever construction to realize, have simple in structurely, drive reliable and stable advantage.
The present invention is further set to: described inner ring swings the axial two ends of mandrel and is equipped with one for the test station of workpiece assembling test, inner ring swings the test station at the axial two ends of mandrel all to there being an outer ring to swing gravity disk, on outer ring swing gravity disk, be all fixed with one and load seat, on described loading arm mount pad, be hinged with two described axial loading arms, described eccentric wheel assembly includes transmission arm, interlock seat and the eccentric wheel being driven by axial loading motor, wherein the drive end of an axial loading arm and transmission arm are articulated and connected, the drive end of the axial loading arm of another root is hinged on interlock seat, described transmission arm is arranged on interlock seat with respect to the other end with the hinged one end of axial loading arm, transmission arm can coordinate along the axially relative slippage of transmission arm with interlock seat, transmission arm is connected end and the interlock of eccentric wheel butt of one end with interlock seat, on described transmission arm, be arranged with and drive transmission arm to be connected to the interlock spring on eccentric wheel, described interlock spring one end is pressed on transmission arm, the interlock spring other end is pressed on interlock seat.
By adopting technique scheme, when the eccentric wheel of axial loading device rotates, driving transmission arm moves axially, when transmission arm arrives the process of eccentric wheel extreme higher position from eccentric wheel extreme lower position, transmission arm stretches out, thereby drive a wherein axial loading arm to be lever-like swing, simultaneously, when transmission arm stretches out, compression interlock spring, interlock Spring driving interlock seat, interlock seat is final drives the axial loading arm hinged with interlock seat to be lever swing, realization drives two axial loading arms to be lever swing simultaneously simultaneously like this, workpiece in two test station is applied to axial load simultaneously, adopt two test station settings, improve testing efficiency, the respectively corresponding inner ring of two test station swings the axial end positions of mandrel, realizing two workpiece inner rings synchronously drives, and eccentric wheel assembly compact conformation, realizing the synchronous axial load of workpiece in two test station applies, axially load reliable and stable.
The present invention is further set to: described eccentric wheel includes rotating shaft and axial load driver rolling bearing, it is upper rotatable that described rotating shaft is assemblied in interlock seat, rotating shaft drives and is connected with axial loading motor, described rotating shaft is provided with the eccentric axis seat of eccentric setting, described axial load driver rolling bearing inner ring close-fitting is on eccentric axis seat, and axially load driver housing washer coordinates with transmission arm butt.
By adopting technique scheme, eccentric wheel adopts in rotating shaft and makes eccentric axis seat, on eccentric axis seat, assemble rolling bearing, eccentric easy to assembly, eccentric wheel slow-roll stabilization, and the Internal and external cycle that transmission arm and eccentric slip is changed into rolling bearing relatively rotates, thereby reduce wearing and tearing, improve serviceable life.
The present invention is further set to: described attemperating unit includes heat blower and hot air duct, and described hot air duct one end is connected with heat blower, and the hot air duct other end is the hot-blast outlet towards workpiece.
By adopting technique scheme, attemperating unit produces the device of hot blast, and for workpiece (double mass flywheel bearing) provides hot blast, simulation workpiece hot environment, has the simple advantage of apparatus structure.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is bearing work condition simulating test machine structural representation for specific embodiment of the invention double mass flywheel;
Fig. 2 is specific embodiment of the invention Work fixing device structural representation;
Fig. 3 is specific embodiment of the invention Work fixing device assembly structure schematic diagram;
Fig. 4 is the axial load maintainer three-dimensional view of the specific embodiment of the invention;
Fig. 5 is the axial load maintainer structural representation of the specific embodiment of the invention;
Fig. 6 is specific embodiment of the invention inner ring driving mechanism structure schematic diagram;
Fig. 7 is specific embodiment of the invention outer ring driving mechanism structure schematic diagram.
Embodiment
Need special instruction, in the present invention, " workpiece " of indication is double mass flywheel bearing.
Referring to accompanying drawing 1 to accompanying drawing 7, bearing work condition simulating test machine for a kind of double mass flywheel disclosed by the invention, include support 1, and be arranged on Work fixing device 2 on support 1, for control workpiece environment temperature attemperating unit 3, workpiece is applied to the axial load maintainer 4 of axial impact loading; Described Work fixing device 2 includes workpiece fixing seat 21, for the fixing inner ring assembling of workpiece inner ring, swings mandrel 22, and the outer ring being fixedly connected with workpiece outer ring swings gravity disk 23; In this specific embodiment, inner ring swings mandrel 22 and includes mandrel main body 221 and test tool axle 222, and test tool axle 222 is fixed in mandrel main body 221, and test tool axle 222 coaxially arranges with mandrel main body 221, split design, convenient processing; Described workpiece fixing seat 21 is fixed on support 1, inner ring swing mandrel 22 by bearing move fit in workpiece fixing seat 21 rotatable, inner ring swings mandrel 22 and is connected with the inner ring driving mechanism 5 that drives inner ring swing mandrel 22 to swing at an angle, and outer ring swing gravity disk 23 is connected with and drives outer ring to swing the outer ring driving mechanism 6 that gravity disk 23 swings at an angle; It is 6o that common double mass flywheel relatively rotates angle with bearing enclose, and 100o.
Described inner ring driving mechanism 5 includes inner ring drive motor 51, inner ring drives coupling shaft 52, inner ring swing connecting bar 53 and inner ring swing arm 54, described inner ring swing arm 54 is fixedly mounted on inner ring and swings on mandrel 22, described inner ring drives coupling shaft 52 to drive with inner ring drive motor 51 to be connected that (inner ring driving coupling shaft 52 can be directly installed on the output shaft of inner ring drive motor 51, also can realize driving through drive disk assembly transmission and connect), described inner ring swing connecting bar 53 one end and inner ring swing arm 54 are articulated and connected, inner ring swing connecting bar 53 other ends are with inner ring driving coupling shaft 52 and can drive on coupling shaft 52 by the counterrotating moving inner ring that fits over, and inner ring swing connecting bar 53 is skew inner ring and drives the inner ring that is eccentrically set on of coupling shaft 52 rotary middle spindles to drive on coupling shaft 52.Certainly, as the feasible technical scheme of the present invention, wherein inner ring driving mechanism can also drive tooth bar axial reciprocating to move for cylinder or motor, at inner ring, swings on mandrel gear is installed, and through rack-and-pinion, coordinates and realizes; Or adopt motor driven belts spiral fluted axle to rotate, the helicla flute of two reverse acting spirals, two ends connection is set on axle, fixing slide block on tooth bar, slide block is arranged in helicla flute slidably, through two reverse helicla flutes, drive slippage commutation, thereby reach, drive tooth bar to move back and forth etc., but all there is complex structure in it, the defect of poor stability.
Described outer ring driving mechanism 6 includes outer ring drive motor 61, outer ring drives coupling shaft 62, outer ring swing connecting bar 63 and outer ring swing linkage unit, described outer ring drives coupling shaft 62 to drive with outer ring drive motor 61 to be connected that (outer ring driving coupling shaft 62 can be directly installed on the output shaft of outer ring drive motor 61, also can realize driving through drive disk assembly transmission and connect), swing connecting bar 63 Cheng Yu outer rings, one end in described outer ring drive coupling shaft 62 to drive on coupling shaft 62 the counterrotating moving outer ring that fits over, and outer ring swing connecting bar 63 is skew outer ring and drives the inner ring that is eccentrically set on of coupling shaft 62 rotary middle spindles to drive on coupling shaft 62, described outer ring swing connecting bar 63 other ends swing linkage unit and outer ring and swing gravity disk 23 and be connected and realize outer ring swing gravity disk 23 and swing at an angle through outer ring.
Wherein, described outer ring swings linkage unit and includes outer ring axis of swing 64, outer ring swings shift fork seat 65 and outer ring swinging fork 66, described outer ring swing connecting bar 63 is hinged on outer ring with respect to the other end that drives coupling shaft 62 to be connected one end with outer ring and swings on shift fork seat 65, described outer ring swings shift fork seat 65 and is fixedly mounted on outer ring axis of swing 64 with respect to the other end with outer ring swing connecting bar 63 hinged one end, outer ring axis of swing 64 swings mandrel 22 with inner ring and is arranged in parallel, and dislocation is arranged, outer ring axis of swing 64 warp beams take up fit in workpiece fixing seat 21 rotatable, described outer ring swinging fork 66 includes fixed part 661 and shift fork arm 662, the fixed part 661 of described outer ring swinging fork 66 is fixedly mounted on outer ring and swings on shift fork seat 65, shift fork arm 662 one end of outer ring swinging fork 66 are connected with fixed part 661, shift fork arm 662 other ends are provided with declutch shift shaft 663, described outer ring swings gravity disk 23 and is provided with the radially guide groove 231 offering along outer ring swing gravity disk 23 radial directions, radially interior radially guide groove 231 slippages of guide groove 231 described in declutch shift shaft 663 is plugged in, and declutch shift shaft 663 and radially guide groove 231 walls butt interlock in outer ring swing gravity disk 23 sense of rotation.Outer ring wobble drive rolling bearing 664 is installed on described declutch shift shaft 663, and outer ring wobble drive rolling bearing 664 is assemblied in radially interior also radially guide groove 231 rollings of guide groove 231.Declutch shift shaft coordinates with guide groove radially by bearing, weares and teares little, and allows declutch shift shaft radially in guide groove, relatively rotating, and it is steadily reliable that declutch shift shaft drives outer ring to swing gravity disk.Wherein, as the feasible technical scheme of outer ring driving mechanism, its outer ring swings the drive part of outer ring axis of swing on linkage unit, can design with the equal distressed structure of inner ring driving mechanism, therefore repeat no more; And outer ring swings linkage unit and can adopt and be hinged on outer ring for outer ring swing connecting bar and swing the jointed shaft on gravity disk, but there is outer ring driving mechanism design and installation inconvenience in this design, easily with miscellaneous part interference.
Described axial load maintainer 4 includes axial loading motor 41, axial loading arm 42, loading arm mount pad 43, load seat 44 and eccentric wheel assembly, the described seat 44 that loads is fixed on the axial centre position that outer ring swings gravity disk 23, described loading arm mount pad 43 is fixedly mounted in workpiece fixing seat 21, axially loading arm 42 is hinged on loading arm mount pad 43 and is lever-like, axially loading arm 42 forms and divides loading end 421 and the drive end 422 that is located at pin joint both sides, axially the loading end 421 of loading arm 42 compresses and coordinates with loading seat 44, axially the drive end 422 of loading arm 42 drives and is connected with axial loading motor 41 through eccentric wheel assembly.
Wherein, for improving testing efficiency, and the stability that improves testing apparatus running, described inner ring swings the axial two ends of mandrel 22 and is equipped with one for the test station of workpiece assembling test, be that the axial two ends of mandrel main body 221 are fixed with two test tool axles 222, inner ring swings the test station at mandrel 22 axial two ends all to there being an outer ring to swing gravity disk 23.Described outer ring swings on gravity disk 23 and is all fixed with a loading seat 44, is hinged with two described axial loading arm 42a, 42b on described loading arm mount pad 43; The eccentric wheel 47 that described eccentric wheel assembly includes transmission arm 45, interlock seat 46 and driven by axial loading motor 41, wherein the drive end of an axial loading arm 42a and transmission arm 45 are articulated and connected, the drive end of the axial loading arm 42b of another root is hinged on interlock seat 46, described transmission arm 45 is arranged on interlock seat 46 with respect to the other end with the hinged one end of axial loading arm 42a, and transmission arm 45 can coordinate along the axially relative slippage of transmission arm 45 with interlock seat 46; Transmission arm 45 is connected end and the eccentric wheel 47 butt interlocks of one end with interlock seat 46, on described transmission arm 45, be arranged with and drive transmission arm 45 to be connected to the interlock spring 48 on eccentric wheel 47, described interlock spring 48 one end are pressed on transmission arm 45, and interlock spring 48 other ends are pressed on interlock seat 46.In this specific embodiment, on interlock seat 46, be provided with through hole, interlock seat 46 is installed with spring spool 49, in spring spool 49, be provided with spring cavity, spring cavity is corresponding with lead to the hole site, transmission arm 45 one end are through the spring cavity of spring spool 9, and on end the fixing piston body 491 coordinating with eccentric wheel 47, the moving spring cavity that fits over of piston body 491, interlock spring 48 is placed in spring cavity, interlock spring 48 is enclosed within on transmission arm 45, and interlock spring 48 one end are against on piston body 491, and interlock spring 48 other ends are pressed on spring spool 49; Design, has advantages of processing, easy to assembly like this.Wherein, the fixed part 661 of described outer ring swinging fork 66 is provided with on two shift fork arms, 662, two shift fork arms 662 and is equipped with described declutch shift shaft 663.The design of above-mentioned employing double, the inside and outside circle of workpiece on two stations synchronously drives, and its loading is also synchronously carried out, and has advantages of compact conformation, and two workpiece adopt axial two ends synchronization action, and symmetry is good, equipment stress equalization, stability is high.On transmission arm 45, install axial load sensor additional convenient to the control of axial loaded load and adjusting; Axially load sensor can be pressure transducer.
For further facilitating eccentric setting, described eccentric wheel 47 includes rotating shaft 471 and axial load driver rolling bearing 472, described rotating shaft 471 warp beams take up fit on interlock seat 46 rotatable, rotating shaft 471 drives and is connected with axial loading motor 41, described rotating shaft 471 is provided with the eccentric axis seat 4711 of eccentric setting, described axial load driver rolling bearing 472 inner ring close-fittings are on eccentric axis seat 4711, and axially load driver rolling bearing 472 outer rings coordinate with transmission arm 45 butts.Eccentric wheel adopts in rotating shaft and makes eccentric axis seat, assembles rolling bearing on eccentric axis seat, eccentric easy to assembly, eccentric wheel slow-roll stabilization, and the Internal and external cycle that transmission arm and eccentric slip is changed into rolling bearing relatively rotates, thereby reduce wearing and tearing, improve serviceable life.
Reliable with coordinating of loading seat for improving axial loading arm, on loading seat 44, be provided with steel ball 441, for the top pressure of axial loading arm, reduce axial loading arm top and be pressed in the friction force that relatively rotates on loading seat, reduce and wear and tear.
Described attemperating unit 3 includes heat blower 31 and hot air duct 32, described hot air duct 32 one end are connected with heat blower 31, hot air duct 32 other ends are the hot-blast outlet towards workpiece, it is wherein corresponding double, hot air duct is provided with two hot-blast outlets, and two hot blast air outlets are formed by two take-off pipes.Attemperating unit is for producing the device of hot blast, and for workpiece (double mass flywheel bearing) improves hot wind supply, simulation workpiece hot environment, has the simple advantage of apparatus structure.Certainly attemperating unit can also can provide hot blast or heating in casing for being located at the casing on workpiece, realizes the simulation of hot environment, but is designing existing structure that complicated and inconvenient defect are set, therefore preferentially adopt the design of this specific embodiment.
Double mass flywheel of the present invention by bearing work condition simulating test machine principle of work is:
1, the installation of workpiece: inner ring workpiece 7(double mass flywheel bearing) is fixedly assemblied on the test tool axle 222 of inner ring swing mandrel 22, outer ring swing gravity disk 23 is sleeved on workpiece 7 outer rings and is fixedly connected with, and outer ring swing gravity disk 23 is realized simultaneously and provided stable radial load to workpiece 7;
2, hot environment simulation, heat blower 31 produces the hot blast of uniform temperature, through hot air duct 32, to workpiece 7 blowing hot-airs, realizes hot environment simulation;
3, workpiece spindle is to loading: axially loading motor 41 drive shafts 471 are rotated, thereby axial load driver rolling bearing 472 eccentric rotary in drive shaft 471, by a distance rotating shaft 471 axle center high position far away on eccentric axis seat 4711, slowly turn to corresponding transmission arm 45 positions, drive transmission arm 45 to move axially and drive the lever swing that is of connected axial loading arm 42a, meanwhile, when transmission arm 45 stretches out, compression interlock spring 48, interlock spring 48 drives interlock seat 46, interlock seat 46 is final drives the axial loading arm 42b hinged with interlock seat 46 to be lever swing, realize drives two axial loading arms to be lever swing simultaneously, workpiece in two test station is applied to identical axial load simultaneously, be convenient to the control of load,
4, the inside and outside circle of workpiece relatively rotates driving; Inner ring drive motor 51 drives inner ring to drive coupling shaft 52 rotations, inner ring drives coupling shaft 52 to drive 53 one-tenth axial reciprocatings of inner ring swing connecting bar of eccentric setting to move, inner ring swing connecting bar 53 drives inner ring to swing mandrel 22 reciprocally swinging at an angle through inner ring swing arm 54, thereby realize, drives workpiece inner ring reciprocally swinging;
Outer ring drive motor 61 drives outer ring to drive coupling shaft 62 rotations, outer ring drives coupling shaft 62 to drive 63 one-tenth axial reciprocatings of outer ring swing connecting bar of eccentric setting to move, inner ring swing connecting bar 63 drives outer ring to swing shift fork seat 65 and swings on outer ring axis of swing 64, thereby drive outer ring swinging fork 66 to swing, two shift fork arms 662 of outer ring swinging fork 66 swing around outer ring axis of swing 64, declutch shift shaft 663 on it swings, on declutch shift shaft 663, outer ring wobble drive rolling bearing 664 is in the radially interior slip of guide groove 231, and stir outer ring and swing gravity disk 23 and swing, realize and drive workpiece 7 outer ring reciprocally swingings, by controlling turning to and rotating speed of inner ring drive motor and outer ring drive motor, realize the control that workpiece Internal and external cycle is relatively rotated to angle and rotational frequency.
Claims (10)
1. bearing work condition simulating test machine for kind of double mass flywheel, it is characterized in that: include support, and be arranged on the Work fixing device on support, for controlling the attemperating unit of workpiece environment temperature, workpiece is applied to the axial load maintainer of axial impact loading, described Work fixing device includes workpiece fixing seat, inner ring for the fixing assembling of workpiece inner ring swings mandrel, and the outer ring being fixedly connected with workpiece outer ring swings gravity disk, inner ring swing mandrel moving fit in workpiece fixing seat rotatable, inner ring swings mandrel and is connected with the inner ring driving mechanism that drives inner ring swing mandrel to swing at an angle, outer ring swings gravity disk and is connected with the outer ring driving mechanism that drives outer ring swing gravity disk to swing at an angle.
2. bearing work condition simulating test machine for double mass flywheel according to claim 1, it is characterized in that: described inner ring driving mechanism includes inner ring drive motor, inner ring drives coupling shaft, inner ring swing connecting bar and inner ring swing arm, described inner ring swing arm is fixedly mounted on inner ring and swings on mandrel, described inner ring drives coupling shaft to drive and be connected with inner ring drive motor, described inner ring swing connecting bar one end and inner ring swing arm are articulated and connected, the inner ring swing connecting bar other end is with inner ring driving coupling shaft and can drives on coupling shaft by the counterrotating moving inner ring that fits over, and inner ring swing connecting bar is skew inner ring and drives the inner ring that is eccentrically set on of coupling shaft rotary middle spindle to drive on coupling shaft.
3. according to bearing work condition simulating test machine for double mass flywheel described in claim 1 or 2, it is characterized in that: described outer ring driving mechanism includes outer ring drive motor, outer ring drives coupling shaft, outer ring swing connecting bar and outer ring swing linkage unit, described outer ring drives coupling shaft to drive and be connected with outer ring drive motor, Cheng Yu outer ring, swing connecting bar one end, described outer ring drives coupling shaft to drive on coupling shaft the counterrotating moving outer ring that fits over, and outer ring swing connecting bar is skew outer ring and drives the inner ring that is eccentrically set on of coupling shaft rotary middle spindle to drive on coupling shaft, the described outer ring swing connecting bar other end swings linkage unit and outer ring and swings gravity disk and be connected and realize outer ring swing gravity disk and swing at an angle through outer ring.
4. bearing work condition simulating test machine for double mass flywheel according to claim 3, it is characterized in that: described outer ring swings linkage unit and includes outer ring axis of swing, outer ring swings shift fork seat and outer ring swinging fork, described outer ring swing connecting bar is hinged on outer ring with respect to the other end that drives coupling shaft to be connected one end with outer ring and swings on shift fork seat, described outer ring swings shift fork seat and is fixedly mounted on the axis of swing of outer ring with respect to the other end with hinged one end of swing connecting bar, outer ring, outer ring axis of swing and inner ring swing mandrel and are arranged in parallel, outer ring axis of swing is assemblied in workpiece fixing seat rotatable, described outer ring swinging fork includes fixed part and shift fork arm, the fixed part of described outer ring swinging fork is fixedly mounted on outer ring and swings on shift fork seat, shift fork arm one end of outer ring swinging fork is connected with fixed part, the shift fork arm other end is provided with declutch shift shaft, described outer ring swings gravity disk and is provided with the radially guide groove offering along outer ring swing gravity disk radial direction, radially radially guide groove slippage in guide groove described in declutch shift shaft is plugged in, and declutch shift shaft and radial guiding cell wall swing butt interlock in gravity disk sense of rotation in outer ring.
5. bearing work condition simulating test machine for double mass flywheel according to claim 4, is characterized in that: outer ring wobble drive rolling bearing is installed on described declutch shift shaft, outer ring wobble drive rolling bearing be assemblied in radially in guide groove and radially guide groove roll.
6. bearing work condition simulating test machine for double mass flywheel according to claim 4, it is characterized in that: described inner ring swings the axial two ends of mandrel and is equipped with one for the test station of workpiece assembling test, inner ring swings the test station at the axial two ends of mandrel all to there being an outer ring to swing gravity disk, the fixed part of described outer ring swinging fork is provided with two shift fork arms, on two shift fork arms, is equipped with described declutch shift shaft.
7. bearing work condition simulating test machine for double mass flywheel according to claim 1, it is characterized in that: described axial load maintainer includes axial loading motor, axial loading arm, loading arm mount pad, load seat and eccentric wheel assembly, the described seat that loads is fixed on the axial centre position that outer ring swings gravity disk, described loading arm mount pad is fixedly mounted in workpiece fixing seat, axially loading arm is hinged on loading arm mount pad and is lever-like, axially loading arm forms and divides loading end and the drive end that is located at pin joint both sides, axially the loading end of loading arm compresses and coordinates with loading seat, axially the drive end of loading arm drives and is connected with axial loading motor through eccentric wheel assembly.
8. bearing work condition simulating test machine for double mass flywheel according to claim 7, it is characterized in that: described inner ring swings the axial two ends of mandrel and is equipped with one for the test station of workpiece assembling test, inner ring swings the test station at the axial two ends of mandrel all to there being an outer ring to swing gravity disk, on outer ring swing gravity disk, be all fixed with one and load seat, on described loading arm mount pad, be hinged with two described axial loading arms, described eccentric wheel assembly includes transmission arm, interlock seat and the eccentric wheel being driven by axial loading motor, wherein the drive end of an axial loading arm and transmission arm are articulated and connected, the drive end of the axial loading arm of another root is hinged on interlock seat, described transmission arm is arranged on interlock seat with respect to the other end with the hinged one end of axial loading arm, transmission arm can coordinate along the axially relative slippage of transmission arm with interlock seat, transmission arm is connected end and the interlock of eccentric wheel butt of one end with interlock seat, on described transmission arm, be arranged with and drive transmission arm to be connected to the interlock spring on eccentric wheel, described interlock spring one end is pressed on transmission arm, the interlock spring other end is pressed on interlock seat.
9. bearing work condition simulating test machine for double mass flywheel according to claim 8, it is characterized in that: described eccentric wheel includes rotating shaft and axial load driver rolling bearing, it is upper rotatable that described rotating shaft is assemblied in interlock seat, rotating shaft drives and is connected with axial loading motor, described rotating shaft is provided with the eccentric axis seat of eccentric setting, described axial load driver rolling bearing inner ring close-fitting is on eccentric axis seat, and axially load driver housing washer coordinates with transmission arm butt.
10. bearing work condition simulating test machine for double mass flywheel according to claim 1, it is characterized in that: described attemperating unit includes heat blower and hot air duct, described hot air duct one end is connected with heat blower, and the hot air duct other end is the hot-blast outlet towards workpiece.
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| CN201410368276.5A CN104155109B (en) | 2014-07-30 | 2014-07-30 | Double mass flywheel bearing work condition simulating test machine |
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| CN201410368276.5A CN104155109B (en) | 2014-07-30 | 2014-07-30 | Double mass flywheel bearing work condition simulating test machine |
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| CN104155109B CN104155109B (en) | 2016-06-15 |
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| CN104502121A (en) * | 2014-12-26 | 2015-04-08 | 重庆长安汽车股份有限公司 | Performance testing device for power coupling system |
| CN105758642A (en) * | 2016-05-26 | 2016-07-13 | 上海大学 | Servo-actuated loading flexible bearing fatigue life tester |
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| CN109357869A (en) * | 2018-10-15 | 2019-02-19 | 西北工业大学 | Bearing rotation and radial load combined test device under hot environment |
| CN110567719A (en) * | 2019-10-25 | 2019-12-13 | 嵊州宁丰轴承有限公司 | Bearing rotation performance detection equipment |
| CN114235400A (en) * | 2021-11-24 | 2022-03-25 | 湖南崇德科技股份有限公司 | Wind-powered electricity generation slide bearing capability test device |
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| CN110567719A (en) * | 2019-10-25 | 2019-12-13 | 嵊州宁丰轴承有限公司 | Bearing rotation performance detection equipment |
| CN114235400A (en) * | 2021-11-24 | 2022-03-25 | 湖南崇德科技股份有限公司 | Wind-powered electricity generation slide bearing capability test device |
| CN114235400B (en) * | 2021-11-24 | 2024-03-19 | 湖南崇德科技股份有限公司 | Wind-powered electricity generation slide bearing capability test device |
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Effective date of registration: 20161207 Address after: Yong Jiang road high tech Industrial Development Zone, Wenzhou city of Zhejiang Province, No. 16 325000 Patentee after: C & U Group Ltd. Patentee after: WUHU SANXING BEARING Co.,Ltd. Address before: Yong Jiang road high tech Industrial Development Zone, Wenzhou city of Zhejiang Province, No. 16 325000 Patentee before: C & U Group Ltd. |
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Address after: 325000 No. 16 Yongjiang Road, hi tech Industrial Development Zone, Wenzhou, Zhejiang Patentee after: C&U Co.,Ltd. Patentee after: WUHU SANXING BEARING Co.,Ltd. Address before: 325000 No. 16 Yongjiang Road, hi tech Industrial Development Zone, Wenzhou, Zhejiang Patentee before: C & U Group Ltd. Patentee before: WUHU SANXING BEARING Co.,Ltd. |