CN203324016U - Motor train unit power train axle box bearing six degree of freedom dynamic simulation loading testbed - Google Patents

Motor train unit power train axle box bearing six degree of freedom dynamic simulation loading testbed Download PDF

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Publication number
CN203324016U
CN203324016U CN2013203909727U CN201320390972U CN203324016U CN 203324016 U CN203324016 U CN 203324016U CN 2013203909727 U CN2013203909727 U CN 2013203909727U CN 201320390972 U CN201320390972 U CN 201320390972U CN 203324016 U CN203324016 U CN 203324016U
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China
Prior art keywords
axle box
bearing
assembly
simulation
oil sealing
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Expired - Fee Related
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CN2013203909727U
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Chinese (zh)
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苏建
张兰
张益瑞
王启明
王秀刚
徐观
宋建
杨晓敏
刘雪峰
杜志豪
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Jilin University
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Jilin University
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Abstract

The utility model discloses a motor train unit power train axle box bearing six degree of freedom dynamic simulation loading testbed, which aims at overcoming a problem that a motor train unit power train axle box bearing reliability test can not be performed during actual operation. The testbed comprises a power transmission torque detection test device, a T-type crossbeam assembling body and a test piece assembling body. The T-type crossbeam assembling body is installed on an intermediate portion of a foundation. The power transmission torque detection test device is installed on a left side of the T-type crossbeam assembling body. The power transmission torque detection test device is connected with the T-type crossbeam assembling body through a cross-axle universal coupling. The test piece assembling body is installed on the foundation above the T-type crossbeam assembling body. A simulation framework side beam supporting platform in the test piece assembling body and an upper surface of a rectangular bearing platform in the power transmission torque detection test device are in a same horizontal surface and are 50mm lower than an upper surface of a vibration T type crossbeam in the T-type crossbeam assembling body. An upper end of the vibration T type crossbeam is mutually parallel to the simulation framework side beam supporting platform.

Description

Motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform
Technical field
The utility model relates to a kind of rail vehicle Train Parameters and detects test unit, and more particularly, the utility model relates to a kind of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform.
Background technology
At present, China's motor train unit technical development is rapid, and the motor train unit max. speed in operation has reached 350km/h, and the motor train unit max. speed in development has approached 500km/h.Along with the raising of motor train unit travel speed and the aggravation of vehicle axle weight load, the vibration aggravation between motor train unit and track, the motor train unit running stability reduces, and the security of motor train unit and running stability problem become increasingly conspicuous.Simultaneously, along with the operation of reaching the standard grade of a large amount of motor train unit, the service works at different levels of motor train unit also launch thereupon, and wherein, the maintenance of motor train unit power train axle box bearing is the important component part of overhaul of train-set, are the keys that ensures the motor train unit safe and reliable operation.Motor train unit power train axle box bearing is as the important component part of motor train unit traveling section, work under bad environment, and load force changes frequent, very easily in the situation that run at high speed and fatigure failure occurs high vibration.Take CRH5 EMUs as example, according to the maintenance regulations, the distance travelled of three grades of maintenance reaches 1,200,000 kilometers, when carrying out three grades of maintenance, just can be opened and inspect the axle box assembly, but, in the actual operation of motor train unit, find, but the motor train unit power train axle box bearing life-span in the reality distance travelled often lower than 1,200,000 kilometers, the detection technique of motor train unit power train axle box bearing becomes the key point of motor train unit technology.
The most common failure phenomenon of motor train unit power train axle box bearing has pit, peels off, scratch, galvanic corrosion etc., at present, develop some new technologies and carried out the fail-safe analysis of motor train unit power train axle box bearing, but, mostly these methods are the operating condition of test of bearing is limited, and can not reflect the practical operation situation of train.In the actual motion of motor train unit, motor train unit power train axle box bearing failure may be a kind of, it may be also the stack of multiple failure mode, therefore, only in the motor train unit actual motion, motor train unit power train axle box bearing is detected, could effectively be analyzed the reliability of motor train unit power train axle box bearing.But, fail-test belongs to destructive test, only have the motor train unit power train axle box bearing of working as to produce fatigure failure under bad working environments, could diagnose its destruction situation and reason, be dangerous and infeasible so do motor train unit power train axle box bearing fail-test in the motor train unit actual motion.
Summary of the invention
Technical problem to be solved in the utility model is to have overcome the problem that motor train unit can not be done motor train unit power train axle box bearing fail-test in actual motion, and a kind of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform is provided.
For solving the problems of the technologies described above, the utility model is to adopt following technical scheme to realize: described motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform comprises power transmission torque detection testing device, T-shaped crossbeam assembly and testpieces assembly, and described T-shaped crossbeam assembly comprises T-shaped crossbeam cross-tie and actuator assembly and power train test vibrating shaft general assembly body; The testpieces assembly comprises analogue framework right side beam assembly, No. 1 analogue framework curb girder pitman shaft assembly, No. 2 analogue framework curb girder pitman shaft assemblies, analogue framework left side beam assembly and analogue framework curb girder support platforms.
Analogue framework left side beam assembly and analogue framework right side beam assembly adopt T-shaped bolt left-right symmetric to be arranged on the upper workplace of analogue framework curb girder support platform, one end of No. 1 analogue framework curb girder pitman shaft assembly is arranged on by bolt on No. 1 rectangle seat of upper surface of analogue framework left side beam assembly, the other end of No. 1 analogue framework curb girder pitman shaft assembly is arranged on by bolt on No. 1 rectangle seat of upper surface of analogue framework right side beam assembly, one end of No. 2 analogue framework curb girder pitman shaft assemblies is arranged on by bolt on No. 2 rectangle seats of upper surface of analogue framework left side beam assembly, the other end of No. 2 analogue framework curb girder pitman shaft assemblies is arranged on by bolt on No. 2 rectangle seats of upper surface of analogue framework right side beam assembly, No. 1 analogue framework curb girder pitman shaft assembly that structure is identical and the long limit of No. 2 analogue framework curb girder pitman shaft assemblies are parallel to each other.
Analogue framework left side beam assembly described in technical scheme is identical with the structure of analogue framework right side beam assembly.Described analogue framework left side beam assembly is comprised of analogue framework left side beam and analogue framework left side beam hinge seat.The analogue framework left side beam is a case body structural member, it is L-type side-looking, the casing that the front part of analogue framework left side beam is cuboid, the periphery of the bottom of the casing of cuboid is provided with for fixing ring flange, be processed with equably bolt hole on ring flange, the rear section of analogue framework left side beam is the semi-girder stretched out, the centre position of the trailing flank of cuboid casing is provided with the rectangle seat No. 3, analogue framework left side beam hinge seat is bolted on No. 3 rectangle seats, be provided with a round buss on semi-girder, the semi-girder rearmost end is provided with a vibroshock through hole, the upper surface of analogue framework left side beam is provided with No. 1 rectangle seat and No. 2 rectangle seats.
Power train described in technical scheme test vibrating shaft general assembly body by reducer shaft end cap, coupling flange, left end simulation axle box assembly, walking beam left end shaft bearing assembly, axle box bearing for test axle, walking beam right-hand member bearing seat assembly and right-hand member simulate the axle box assembly and form.The multidiameter that axle box bearing test is 3 segmentations with the left end of axle, the multidiameter that axle box bearing test is 2 segmentations with the right-hand member of axle, it between the multidiameter of the multidiameter of 3 segmentations and 2 segmentations, is prismatic intermediate shaft, left shaft holder assembling axon and the right bearing seat assembling axon of two sections axles that are connected with the intermediate shaft two ends for walking beam left end shaft bearing assembly and walking beam right-hand member bearing seat assembly are installed, the outer end of left shaft holder assembling axon and right bearing seat assembling axon is processed with screw thread, be processed with axial keyway on screw thread, two sections axles that are connected with right bearing seat assembling axon two ends with left shaft holder assembling axon are for installing left simulation axle box assembling axon and the right simulation axle box assembling axon of left end simulation axle box assembly and right-hand member simulation axle box assembly, the outer end of left simulation axle box assembling axon and right simulation axle box assembling axon is processed with screw thread, be processed with axial keyway on screw thread, the axle be connected with the left end of left simulation axle box assembling axon is for installing the shaft coupling axle of coupling flange, be processed with axial keyway on the shaft coupling axle, be processed with vertically the axial thread hole on the left side of shaft coupling axle.Walking beam left end shaft bearing assembly and walking beam right-hand member bearing seat assembly are arranged on the left shaft holder assembling axon and right bearing seat assembling axon of axle box bearing test with axle successively, with the axle box bearing test, with the shaft shoulder on the intermediate shaft of axle, locate, the axle box bearing test that left end simulation axle box assembly and right-hand member simulation axle box assembly are arranged on walking beam left end shaft bearing assembly and the walking beam right-hand member bearing seat assembly outside is with on axle, and coupling flange is sleeved on the axle box bearing test with on the shaft coupling axle of the high order end of axle and adopt the key connection.
Left end simulation axle box assembly described in technical scheme is identical with the structure of right-hand member simulation axle box assembly.Described left end simulation axle box assembly comprise simulation axle box rubber hinge axle, simulation axle box, simulation axle box left circles stop washer nut for, simulation axle box left circles nut, simulation axle box left side oil sealing, CRH3 axle box bearing, simulation axle box watt, one be rubber blanket under vibroshock, simulation axle box circle spring, journal box spring group with the round spring of simulation axle box on rubber blanket.Simulation axle box rubber hinge axle inserts in the hinge axis manhole of simulation axle box front end, rubber blanket under simulation axle box circle spring, on journal box spring group and simulation axle box circle spring, rubber blanket is arranged on the discoidal base on simulation axle box top successively from the bottom to top, under simulation axle box circle spring, rubber blanket is sleeved on discoidal base, the bottom surface of journal box spring group is connected with the upper surface contact of rubber blanket under simulation axle box circle spring, the end face of journal box spring group is connected with the bottom surface contact of rubber blanket on simulation axle box circle spring, the semicircle otic placode and one of the rearmost end of simulation axle box is that the lower end of vibroshock is fixedly connected with, simulation axle box watt and simulating together with axle box is bolted, in first round bearing groove of simulation axle box and the lower semi-circular bearing groove of simulation axle box watt, the CRH3 axle box bearing is installed, simulation axle box left side oil sealing is arranged in the hole in the CRH3 axle box bearing outside, the outer circumference surface of simulation axle box left side oil sealing is connected for contact with the interior anchor ring in the hole in the outside, oil sealing right side, simulation axle box left side is connected for contact with the left side of CRH3 axle box bearing inner bearing collar, simulation axle box right side oil sealing is arranged in the hole on CRH3 axle box bearing right side with simulation axle box left side oil sealing symmetry, simulation axle box right side oil-seal outer side face is connected for contact with the interior anchor ring in the hole on right side, the left side of simulation axle box right side oil sealing becomes contact to be connected with the right side of the inner bearing collar of CRH3 axle box bearing, simulation axle box left circles nut is arranged on the left side of simulation axle box left side oil sealing with stop washer, simulation axle box left circles nut is arranged on the left side of simulation axle box left circles nut with stop washer, stop washer and the simulation axle box right circles nut symmetrical right-hand member that is arranged on simulation axle box right side oil sealing successively for simulation axle box right circles nut.
Simulation axle box described in technical scheme is the Shell-Class structural member, locate the torus of the hinge axis round tube hole of the level that is provided with centered by its front end, the rear end of simulation axle box is rectangular parallelepiped, be provided with between the torus of hinge axis round tube hole of level and rectangular parallelepiped and linked into an integrated entity by hollow four prisms cylinder, the lower end of rectangular parallelepiped is provided with the level semi-circular through hole that Open Side Down, the axis of rotation of the semi-circular through hole of level is parallel with the axis of rotation of the hinge axis round tube hole of level, be provided with semicircular boss on the both ends of the surface of semi-circular through hole, be processed with bearings mounted first round bearing groove in semi-circular through hole, be welded with discoidal base on the top end face of rectangular parallelepiped, the centre bit of disc-shaped base is equipped with cylindrical protrusions, the rearmost end of simulation axle box is that the lower end of the rear end face of rectangular parallelepiped is provided with the semicircle otic placode with manhole.Described simulation axle box watt is that the rectangular body by lower end passes through with the semi-circular ring of upper end the symmetrical expression Shell-Class structural member formed mutually, four jiaos of places of rectangular parallelepiped are evenly arranged the round tube hole that is useful on erection bolt, the semi-circular through hole that on rectangular parallelepiped in the part that the two ends of the semi-circular ring of upper end exceed rectangular body and simulation axle box, Open Side Down is equipped, is processed with bearings mounted lower semi-circular bearing groove in semi-circular ring.
Walking beam left end shaft bearing assembly described in technical scheme is identical with the structure of walking beam right-hand member bearing seat assembly.Described walking beam left end shaft bearing assembly includes simulating wheel supporting shaft holder labyrinth oil sealing left end cap, stop washer, round nut, the left spacer of axle box bearing test bearing seat labyrinth oil sealing, axle box bearing, walking beam bearing seat, simulating wheel supporting shaft holder labyrinth oil sealing right end cap and the right spacer of axle box bearing test bearing seat labyrinth oil sealing for round nut.Simulating wheel supporting shaft holder labyrinth oil sealing left end cap is identical with simulating wheel supporting shaft holder labyrinth oil sealing right end cap structure, by the screw symmetry, be arranged on the cylindrical both sides end face of horizontal positioned of walking beam bearing seat upper end respectively, oil sealing left spacer in axle box bearing test bearing seat labyrinth is identical with the right spacer structure of axle box bearing test bearing seat labyrinth oil sealing, be arranged on respectively in the endoporus of simulating wheel supporting shaft holder labyrinth oil sealing left end cap and simulating wheel supporting shaft holder labyrinth oil sealing right end cap, axle box bearing is arranged on the centre position of the cylindrical manhole of walking beam bearing seat upper end horizontal positioned, with the left side of the bearing inner ring of axle box bearing, with its right end face, contact is connected the left end face of its right end face of the left spacer of axle box bearing test bearing seat labyrinth oil sealing and the right spacer of axle box bearing test bearing seat labyrinth oil sealing successively, the left side of the outer race of axle box bearing is connected with its right end face of simulating wheel supporting shaft holder labyrinth oil sealing left end cap and the left end face contact of simulating wheel supporting shaft holder labyrinth oil sealing right end cap respectively with its right end face.Round nut is connected with the left end face contact of the left spacer of axle box bearing test bearing seat labyrinth oil sealing by its right end face of stop washer, and round nut is connected with its right end face contact of round nut by the left end face of stop washer.
Walking beam bearing seat described in technical scheme is bearing class formation part, by the right cylinder of the horizontal positioned of upper end and the base of lower end, formed, the right cylinder center of the horizontal positioned of upper end is processed with the manhole of installation shaft axle box bearing, the periphery of this manhole evenly is provided with the tapped blind hole of erection bolt, be provided with main supporting plate between the face of cylinder, the cylindrical end of horizontal positioned and the base plate of base, the cylindrical central axis of main supporting plate and horizontal positioned is vertical and be positioned at the center of right cylinder axial length, be provided with symmetrically the arc floor on the Main shoe plate two sides of right cylinder below, be welded with equably 3 vertical gussets between arc floor on the main supporting plate two sides and the base plate of base, left side back up pad and right side back up pad are installed symmetrically with respect to Main shoe plate left end and right-hand member, the inboard of left side back up pad and right side back up pad and bottom successively with Main shoe plate left side, right side is connected with base plate, be processed with respectively the bolt hole that T-shaped bolt is installed on the base plate of main supporting plate both sides.
T-shaped crossbeam cross-tie described in technical scheme and actuator assembly comprise that actuator, T-shaped crossbeam connect drag link ball socket joint and pull bar, actuator base, bearing pin connection seat, curved boom and actuator and curved boom Connection Block.The right-hand member earrings of pull bar connects with T-shaped crossbeam No. 1 oscillating bearing that the drag link ball socket joint is GEG90ES-2RS by model and realizes that ball pivot is connected, No. 2 oscillating bearings that the ears ring of pull bar left end is GEG90ES-2RS with the through hole of curved boom upper end by model realize that ball pivot is connected, the through hole in the curved boom lower left corner and bearing pin connection seat adopt No. 1 bearing pin to be rotationally connected, ears ring on the through hole of curved boom right-hand member and actuator base is rotationally connected by No. 2 bearing pins, actuator is fixedly connected with the top of curved boom Connection Block and actuator, No. 3 oscillating bearings that the bottom of actuator is GEG90ES-2RS with the actuator base by model realize that ball pivot is connected.
T-shaped crossbeam assembly described in technical scheme is arranged on the centre position of ground, the power transmission torque detection testing device is arranged on T-shaped crossbeam assembly left side, the power transmission torque detection testing device is connected by the universal coupling with spider in the power transmission torque detection testing device with T-shaped crossbeam assembly, the testpieces assembly is arranged on the ground of top of T-shaped crossbeam assembly, analogue framework curb girder support platform in the testpieces assembly and the upper surface of the rectangle carrying platform in the power transmission torque detection testing device are in same level, the upper surface of the T-shaped crossbeam of vibration in T-shaped crossbeam assembly exceeds 50mm in surface level and than the upper surface of the rectangle carrying platform in analogue framework curb girder support platform and power transmission torque detection testing device, the long limit adjacent with analogue framework curb girder support platform, the long limit of the T-shaped worktable in upper end of the T-shaped crossbeam of vibration in T-shaped crossbeam assembly parallels, distance between the two is 20mm.
Compared with prior art the beneficial effects of the utility model are:
1. the reliability testing of axle box bearing in actual entrucking situation that motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model can be simulated the motor train unit power train, with motor train unit power train axle box bearing carried out separately to fail-safe analysis compare in the past, this testing table can be simulated the motion of motor train unit power train axle box bearing six-freedom degree, thereby the data that can provide have more correctness and authenticity.
2. motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model has solved the existing infeasible problem of carrying out motor train unit power train axle box bearing fail-test under the train actual operating mode.
3. the included six-degree of freedom vibration simulation test device of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model, can accurately simulate the Vibration Condition of motor train unit in actual track, provide good test basis for motor train unit power train axle box bearing dynamic load reliability detects, guaranteed the accuracy of test.
4. motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model can be realized the interior motor train unit power train axle box bearing fail-test of the speed of a motor vehicle very on a large scale, measure under speed of a motor vehicle current intelligence and can reach 420km/h, can reach 500km/h under static operating mode, can meet the detection of the motor train unit power train axle box bearing reliability that China moved or developed fully, to improving the safe operation of motor train unit, improve the riding comfort of motor train unit and the development of quickening motor train unit technology good facilitation is arranged, also has good Social benefit and economic benefit simultaneously.
5. motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform reasonable in design described in the utility model, adopt the mode that T-shaped bolt is fixedly connected with that each parts are installed on test platform, if a certain parts break down, can overhaul easily or change, greatly improve the test efficiency of motor train unit power train axle box bearing reliability.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the axonometric projection view that motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform structure described in the utility model forms;
Fig. 2 is that the axonometric projection view is amplified in the part at A place in Fig. 1;
Fig. 3 is the axonometric projection view that the power transmission torque detection testing device structure in motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model forms;
Fig. 4 is the axonometric projection view of the T-shaped crossbeam assembly in motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Fig. 5 is the axonometric projection view of the T-shaped crossbeam of vibration of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Fig. 6 is the T-shaped crossbeam cross-tie of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model and the axonometric projection view of actuator assembly;
Fig. 7 is the axonometric projection view of the power train test vibrating shaft general assembly body of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Fig. 8 is the axonometric projection view of the axle box bearing test of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model with axle;
Fig. 9 is the axonometric projection view of the left end simulation axle box assembly of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 10 is the axonometric projection view of the simulation axle box of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 11 is the axonometric projection view of the simulation axle box watt of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 12 is the axonometric projection view of walking beam (simulating wheel supporting) the left end shaft bearing assembly of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 13 is the full sectional view on walking beam (simulating wheel supporting) the left end shaft bearing assembly front view of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 14 is the axonometric projection view of the testpieces assembly of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 15 is the axonometric projection view that No. 1 analogue framework of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model is measured the connecting link assembly;
Figure 16 is the axonometric projection view of No. 1 analogue framework left side beam assembly of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
Figure 17 is the axonometric projection graph of No. 1 analogue framework left side beam hinge seat of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model;
In figure: 1. power transmission torque detection testing device, 2.T type crossbeam assembly, 3. testpieces assembly, 4. vibrate T-shaped crossbeam, 5. the vertical actuator of left end, 6.T type crossbeam upper left longitudinal tie and actuator assembly, 7.T type crossbeam lower end longitudinal tie and actuator assembly, 8. the vertical actuator of right-hand member, 9.T type crossbeam upper right longitudinal tie and actuator assembly, 10.T type crossbeam cross-tie and actuator assembly, 11. power train test vibrating shaft general assembly body, 12. upper left longitudinal tie seat, 13. lower end longitudinal tie seat, 14. upper right longitudinal tie seat, 15. actuator, 16.T the type crossbeam connects the drag link ball socket joint, 17. pull bar, 18. actuator base, 19. bearing pin connection seat, 20. curved boom, 21. actuator and curved boom Connection Block, 22. reducer shaft end cap, 23. coupling flange, 24. left end simulation axle box assembly, 25. walking beam left end shaft bearing assembly, 26. axle box bearing test axle, 27. walking beam right-hand member bearing seat assembly, 28. right-hand member simulation axle box assembly, 29. simulation axle box rubber hinge axle, 30. simulation axle box, 31. simulation axle box left circles nut stop washer, 32. simulation axle box left circles nut, 33. simulation axle box left side oil sealing, 34.CRH3 axle box bearing, 35. simulation axle box watt, 36. one is vibroshock, 37. rubber blanket under simulation axle box circle spring, 38. journal box spring group, 39. rubber blanket on simulation axle box circle spring, 40. simulating wheel supporting shaft holder labyrinth oil sealing left end cap, 41. round nut stop washer, 42. round nut, 43. the left spacer of axle box bearing test bearing seat labyrinth oil sealing, 44. axle box bearing, 45. walking beam (simulating wheel supporting) bearing seat, 46. simulating wheel supporting shaft holder labyrinth oil sealing right end cap, 47. the right spacer of axle box bearing test bearing seat labyrinth oil sealing, 48. analogue framework right side beam assembly, 49.1 number analogue framework curb girder pitman shaft assembly, 50.2 number analogue framework curb girder pitman shaft assembly, 51. analogue framework left side beam assembly, 52. analogue framework curb girder support platform, 53. analogue framework left side beam, 54. analogue framework left side beam hinge seat, 55. rectangle carrying platform, 56. frequency modulation motor assembly, 57. torque sensor assembly, 58. excessively support the cone axis assembly, 59. universal drive shaft more protection cover assembly.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail:
The utility model provides a kind of motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform, the needs that detect to meet the dependability parameter of motor train unit power train axle box bearing under multiple operating condition.This testing table has adopted the structural design of rational load simulated system, avoided carrying out the dangerous and loss that destructive test brings on the motor train unit of actual motion, can simulate respectively the vibration operating mode of three degree of freedom and Three Degree Of Freedom coupling, accurately simulate the vibrational state of motor train unit actual motion, guaranteed correctness and the authenticity of motor train unit axle box bearing dependability parameter test result.Institute does experiment and is destructive test, so just can accurately provide tested motor train unit power train axle box bearing failure reason and concrete technical parameter.Research motor train unit axle box bearing reliability has very high social value and social effect widely, the safe operation that improves motor train unit, the riding comfort that improves moving speed car group and the development of motor train unit technology are had to good facilitation, also have good Social benefit and economic benefit simultaneously.
Consult Fig. 1 to Fig. 3, motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform described in the utility model comprises power transmission torque detection testing device 1, T-shaped crossbeam assembly 2 and testpieces assembly 3.Power transmission torque detection testing device 1 is connected by the universal coupling with spider in power transmission torque detection testing device 1 with T-shaped crossbeam assembly 2, frequency modulation motor in power transmission torque detection testing device 1 provides driving moment for whole motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform, drive the axle box bearing test in T-shaped crossbeam assembly 2 to rotate under different rotating speeds with axle 26, in process of the test, T-shaped crossbeam assembly 2 and torque forces transmission square detect test unit 1 can produce relative displacement, the use of universal coupling with spider has realized the Flexible Transmission of power.The T-shaped crossbeam 4 of vibration in rectangle carrying platform 55 in power transmission torque detection testing device 1, T-shaped crossbeam assembly 2 and the upper surface of the analogue framework curb girder support platform 52 in testpieces assembly 3, along laterally being provided with some the T-shaped grooves that are parallel to each other, can be installed the position of locating and needing to adjust testing equipment according to test to testing equipment easily when carrying out correlation test.The analogue framework curb girder support platform 52 of rectangle, rectangle carrying platform 55 is the structural member of flat-type cast iron, both upper surfaces are in same level, bottom is fixedly attached on the ground of testing table by foot bolt, the upper surface of the T-shaped crossbeam 4 of vibration in T-shaped crossbeam assembly 2 is in surface level and than the high 50mm in upper surface position of analogue framework curb girder support platform 52, parallel distance between the upper surface of the T-shaped crossbeam 4 of vibration in T-shaped crossbeam assembly 2 and the upper surface of analogue framework curb girder support platform 52 is 20mm, the lower end of each actuator in T-shaped crossbeam assembly 2 is arranged on (hole formula) ground (hole at the bottom of).The two ends of power train test vibrating shaft general assembly body 11 respectively are arranged on the upper working surface of the T-shaped crossbeam 4 of vibration by T-shaped bolt.
Consult Fig. 2, left end simulation axle box assembly 24 in T-shaped crossbeam assembly 2 is sleeved on the axle box bearing test with on axle 26, simulation axle box 30 in left end simulation axle box assembly 24 is connected with analogue framework left side beam hinge seat 54 by simulation axle box rubber hinge axle 29, in left end simulation axle box assembly 24 one is that vibroshock 36 upper ends are sleeved in the round tube hole of analogue framework left side beam 53, and on the journal box spring group 38 in left end simulation axle box assembly 24 and simulation axle box circle spring, pad 39 is sleeved in the circle cover of analogue framework left side beam 53.
Consult Fig. 1, exactly, described T-shaped crossbeam assembly 2 is arranged on the centre position of ground, power transmission torque detection testing device 1 is arranged on T-shaped crossbeam assembly 2 left sides, power transmission torque detection testing device 1 is connected with the power train test vibrating shaft general assembly body 11 in T-shaped crossbeam assembly 2 by the universal coupling with spider in power transmission torque detection testing device 1 with T-shaped crossbeam assembly 2, testpieces assembly 3 be arranged on T-shaped crossbeam assembly 2 upper (front) side ground on, analogue framework curb girder support platform 52 in testpieces assembly 3 and the upper surface of the rectangle carrying platform 55 in power transmission torque detection testing device 1 are in same level, the upper surface of the T-shaped crossbeam 4 of vibration in T-shaped crossbeam assembly 2 exceeds 50mm in surface level and than the upper surface of the rectangle carrying platform 55 in analogue framework curb girder support platform 52 and power transmission torque detection testing device 1, the T-shaped crossbeam of vibration in T-shaped crossbeam assembly 24 De Chang limits, upper end parallel with the long limit of analogue framework curb girder support platform 52, distance between the two is 20mm.
Consult Fig. 3, power transmission torque detection testing device 1 comprises rectangle carrying platform 55, frequency modulation motor assembly 56, torque sensor assembly 57, excessively supports cone axis assembly 58 and universal drive shaft more protection cover assembly 59.Frequency modulation motor assembly 56, torque sensor assembly 57, excessively support the upper surface that cone axis assembly 58 and universal drive shaft more protection cover assembly 59 are arranged on rectangle carrying platform 55.Torque sensor assembly 57 is connected with the frequency modulation motor axle key in frequency modulation motor assembly 56 by the ring flange of motor crossover flange assembly, the shaft coupling coupling sleeve of motor crossover flange assembly is connected with the left side ring flange of torque sensor assembly 57, the right side ring flange of torque sensor assembly 57 connects by key with the excessive support cone axis that excessively supports cone axis assembly 58, the other end of the excessive support cone axis of excessive supporting cone axis assembly 58 is connected by key with the transition axis shaft coupling conical bore flange of the Hooke's joint drive shaft cartridge part in universal drive shaft more protection cover assembly 59.
Consult Fig. 4 and Fig. 5, the T-shaped crossbeam 4 of T-shaped crossbeam assembly 2 involving vibrations, the vertical actuator 5 of left end, T-shaped crossbeam upper left longitudinal tie and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7, the vertical actuator 8 of right-hand member, T-shaped crossbeam upper right longitudinal tie and actuator assembly 9, T-shaped crossbeam cross-tie and actuator assembly 10 and power train test vibrating shaft general assembly body 11.
The T-shaped crossbeam 4 of described vibration is arranged on ground, the two ends of power train test vibrating shaft general assembly body 11 are arranged on the upper working surface of the T-shaped crossbeam 4 of vibration by T-shaped bolt, T-shaped bolt can move in the T-shaped groove on the upper working surface of the T-shaped crossbeam 4 of vibration, can adjust the installation site of power train test vibrating shaft general assembly body 11 on the upper working surface of the T-shaped crossbeam 4 of vibration by the position of adjusting T-shaped bolt.
The T-shaped crossbeam 4 of described vibration is a case body structural member, vibrate T-shaped crossbeam 4 overlook and lead look all in T shape.Vibrate on T-shaped crossbeam 4 fronts and be provided with upper left longitudinal tie seat 12, lower end longitudinal tie seat 13 and upper right longitudinal tie seat 14, vibrate on the lower surface (bottom surface) of T-shaped crossbeam 4 left and right and be provided with two the vertical actuator Connection Blocks in left and right, the position (being left vertical actuator Connection Block and right vertical actuator Connection Block) of these two vertical actuator Connection Blocks in left and right is adjacent with the position of upper left longitudinal tie seat 12 and upper right longitudinal tie seat 14 and be mutually right angle respectively.The right side that vibrates T-shaped crossbeam 4 is provided with the cross-tie seat, and the position of the position of this cross-tie seat and upper right longitudinal tie seat 14 is adjacent and be mutually right angle.Vibrate T-shaped crossbeam 4 and both can adopt the method for casting to make, also can adopt the mode of Plate Welding to make.The upper workplace that vibrates T-shaped crossbeam 4 is provided with T-shaped groove.
Power train test vibrating shaft general assembly body 11 two ends are bolted on the upper workplace that vibrates T-shaped crossbeam 4 by T-shaped, and the axle box bearing test in power train test vibrating shaft general assembly body 11 is parallel with the long limit of the upper workplace of the T-shaped crossbeam 4 of vibration with the axis of axle 26.Simultaneously, vibrating T-shaped crossbeam 4 can also be by T-shaped groove, flexible being fixed on other various instruments and device on the upper workplace of the T-shaped crossbeam 4 of vibration of T-shaped bolt, and making to vibrate T-shaped crossbeam 4 becomes an omnipotent immobilization carrier.The vertical actuator 5 of left end that two structures are identical and the upper end of the vertical actuator 8 of right-hand member are connected with right vertical actuator Connection Block with the vertical actuator Connection Block in a left side on T-shaped crossbeam 4 lower surfaces of vibration (bottom surface) by bolt.By bolt, and mutual rectangular cross-tie seat adjacent with the position with longitudinal tie seat 14 on T-shaped crossbeam 4 is fixedly connected with the left end of T-shaped crossbeam cross-tie and actuator assembly 10.The T-shaped crossbeam upper left longitudinal tie that three structures are identical and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7 and T-shaped crossbeam upper right longitudinal tie and actuator assembly 9 mode triangular in shape are arranged, their end is connected with upper right longitudinal tie seat 14 with upper left longitudinal tie seat 12, lower end longitudinal tie seat 13 on the T-shaped crossbeam 4 of vibration respectively, and the other end is fixedly connected with ground welding or bolt respectively.Two identical vertical actuator 5 of left end of structure are fixedly connected with right vertical actuator Connection Block bolt with the vertical actuator Connection Block in a left side on the T-shaped crossbeam 4 of vibration successively with the upper end of the vertical actuator 8 of right-hand member, and two identical vertical actuator 5 of left end of structure are fixedly connected with ground welding or bolt successively with the lower end of the vertical actuator 8 of right-hand member.
The T-shaped crossbeam upper left longitudinal tie that three structures are identical and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7 and T-shaped crossbeam upper right longitudinal tie and the identical vertical actuator 5 of left end of 9, two structures of actuator assembly are connected with hydraulic power unit by pipeline with the oil inlet and outlet on T-shaped crossbeam cross-tie and actuator assembly 10 with the vertical actuator 8 of right-hand member.
Consult Fig. 6 and Fig. 7, T-shaped crossbeam cross-tie and actuator assembly 10 connect drag link ball socket joint 16, pull bar 17, actuator base 18, bearing pin connection seat 19,20, No. 1 oscillating bearing of curved boom, No. 2 oscillating bearings, No. 3 oscillating bearings, No. 1 bearing pin, No. 2 bearing pins and actuator by actuator 15, T-shaped crossbeam and curved boom Connection Block 21 forms.
The structure of T-shaped crossbeam cross-tie and actuator assembly 10 is identical with the structure of T-shaped crossbeam upper left longitudinal tie and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7 and T-shaped crossbeam upper right longitudinal tie and actuator assembly 9.The right-hand member earrings of pull bar 17 connects with T-shaped crossbeam No. 1 oscillating bearing that drag link ball socket joint 16 is GEG90ES-2RS by model and realizes that ball pivot is connected, thereby realizes both universal connections.No. 2 oscillating bearings that the through hole of the ears ring of pull bar 17 left ends and curved boom 20 upper ends is GEG90ES-2RS by model realize that ball pivot is connected, thereby realize both universal connections, the through hole in curved boom 20 lower left corners and bearing pin connection seat 19 adopt No. 1 bearing pin to be rotationally connected, and through hole and the ears ring on actuator base 21 of curved boom 20 right-hand members are rotationally connected by No. 2 bearing pins.Actuator is fixedly connected with the top of actuator 15 with curved boom Connection Block 21, and No. 3 oscillating bearings that the bottom of actuator 15 is GEG90ES-2RS with actuator base 18 by model realize that ball pivot is connected.
Consult Fig. 7 and Fig. 8, power train test vibrating shaft general assembly body 11 by reducer shaft end cap 22, coupling flange 23, left end simulation axle box assembly 24, walking beam (simulating wheel supporting) left end shaft bearing assembly 25, axle box bearing for test axle 26, walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27 and right-hand member simulate axle box assembly 28 and form.
The axle box bearing test is multidiameters with axle 26, and material is 1045 steel, and cold-drawn processes.The multidiameter that axle box bearing test is 3 segmentations with the left end of axle 26, axle box bearing is tested the multidiameter that the right-hand member with axle 26 is 2 segmentations, between the multidiameter of the multidiameter of 3 segmentations and 2 segmentations, is prismatic intermediate shaft.Left shaft holder assembling axon and the right bearing seat assembling axon of two sections axles that are connected with the intermediate shaft two ends for walking beam left end shaft bearing assembly 25 and walking beam right-hand member bearing seat assembly 27 are installed, be processed with screw thread on the outer end axle of left shaft holder assembling axon and right bearing seat assembling axon, be processed with axial keyway on screw thread, two sections axles that are connected with right bearing seat assembling axon two ends with left shaft holder assembling axon are for installing left simulation axle box assembling axon and the right simulation axle box assembling axon of left end simulation axle box assembly 24 and right-hand member simulation axle box assembly 28, be processed with screw thread on the outer end axle of left simulation axle box assembling axon and right simulation axle box assembling axon, be processed with axial keyway on screw thread, the axle be connected with the left end of left simulation axle box assembling axon is for installing the shaft coupling axle of coupling flange 23, be processed with axial keyway on the shaft coupling axle, and, be processed with vertically the threaded hole of four M20 on the left side that axle box bearing test is the shaft coupling axle with one section axle of axle 26 leftmost sides.
Consult Fig. 9 to Figure 11, the structure of left end simulation axle box assembly 24 and right-hand member simulation axle box assembly 28 is identical.
Described left end simulation axle box assembly 24 comprise simulation axle box rubber hinge axle 29, simulation axle box 30, simulation axle box left circles stop washer 31 nut for, simulation axle box left circles nut 32, simulation axle box left side oil sealing 33, CRH3 axle box bearing 34, simulation axle box watt 35, be rubber blanket 37 under vibroshock 36, simulation axle box circle spring, journal box spring group 38 with the round spring of simulation axle box on rubber blanket 39.
Simulation axle box 30 is the Shell-Class structural member, by casting, processes.Its front end center is provided with the torus of the hinge axis manhole of level, simulation axle box rubber hinge axle 29 is installed in the hinge axis manhole, and simulation axle box 30 is connected with the open pore on analogue framework curb girder hinge seat 54 is equipped by simulation axle box rubber hinge axle 29.The right-hand member of simulation axle box 30 is rectangular parallelepiped, be provided with between the torus of hinge axis manhole of level and rectangular parallelepiped and linked into an integrated entity by hollow four prisms cylinder, the lower end of rectangular parallelepiped is provided with the level semi-circular through hole that Open Side Down, the axis of rotation of the semi-circular through hole of level is parallel with the axis of rotation of the hinge axis round tube hole of level, be provided with semicircular boss on the rear and front end face of semi-circular through hole, be processed with bearings mounted first round bearing groove in semi-circular through hole, be welded with discoidal base on the top end face of rectangular parallelepiped, the centre bit of disc-shaped base is equipped with cylindrical protrusions, be used for limiting the position of rubber blanket 37 under simulation axle box circle spring, rubber blanket 37 under simulation axle box circle spring, on journal box spring group 38 and simulation axle box circle spring rubber blanket 39 successively from the bottom to top coaxial heart be arranged on the discoidal base on left simulation axle box 30 tops, under simulation axle box circle spring, rubber blanket 37 is sleeved on discoidal base, the lower surface of journal box spring group 38 (bottom surface) becomes contact to be connected with the upper surface of rubber blanket 37 under simulation axle box circle spring, the upper surface of journal box spring group 38 (end face) becomes contact to be connected with the lower surface of rubber blanket 39 on simulation axle box circle spring, on journal box spring group 38 and simulation axle box circle spring, rubber blanket 39 is enclosed in the round buss of analogue framework left side beam 53.The rearmost end of simulation axle box 30 is the semicircle otic placode that the lower end of the right side of rectangular parallelepiped is provided with the Intermediate Gray manhole, being used for one is that the lower end of vibroshock 36 is bolted to connection, and one is to pack in the round tube hole of analogue framework left side beam 53 low order ends for being fixedly connected with in vibroshock 36 upper ends.
Right simulation axle box in right-hand member simulation axle box assembly 28 connects by the load that matches of right simulation axle box rubber hinge axle and analogue framework right side beam hinge seat, in right-hand member simulation axle box assembly 28 one is that right vibroshock upper end is sleeved in the round tube hole on analogue framework right side beam top, on the right groups of springs of axle box in right-hand member simulation axle box assembly 28 and the right round spring of simulation axle box, pads and is enclosed in the right round buss of analogue framework right side beam.
Simulation axle box watts 35 is the Shell-Class structural member, by casting, processes.Or rather, simulation axle box watts 35 is that the rectangular body by lower end passes through with the semi-circular ring of upper end the symmetrical expression Shell-Class structural member formed mutually, (Si Jiaochu) is evenly arranged the round tube hole that is useful on erection bolt in the rectangular parallelepiped both sides, the part that the two ends of the semi-circular ring of upper end exceed rectangular body forms projection, is processed with bearings mounted lower semi-circular bearing groove in semi-circular ring.Simulation axle box 30 and simulating together with axle box watts 35 is bolted, the semi-circular ring of simulation axle box 30 semi-circular through hole and simulation axle box watt 35 upper ends forms circular support, in the lower semi-circular bearing groove of first round bearing groove of simulating axle box 30 in the larger hole of circular support mid diameter and simulation axle box watts 35, the axle box bearing 34 that model is CRH3 is installed, the outer circumference surface of the outer collar bearing of the axle box bearing 34 that the inner peripheral surface in the hole that circular support mid diameter is larger is CRH3 with model becomes closely to be connected, the axle box bearing 34 that model is CRH3 is the testpieces of this test, adopt the actual axle box bearing in use on motor train unit bogie, simulation axle box left side oil sealing 33 is arranged in the hole outside circular the support, simulation axle box left side oil sealing 33 outer circumference surfaces become contact to be connected with the interior anchor ring in the hole in the outside, oil sealing 33 right sides, simulation axle box left side become contact to be connected with the outer face of CRH3 axle box bearing 34 inner bearing collars, simulation axle box right side oil sealing is arranged in the hole on CRH3 axle box bearing 34 right sides with simulation axle box left side oil sealing 33 symmetries, simulation axle box right side oil-seal outer side face is connected for contact with the interior anchor ring in the hole in the outside, the left side of simulation axle box right side oil sealing is connected for contact with the right side of CRH3 axle box bearing 34 inner bearing collars.Simulation axle box left circles nut is arranged on the outside of simulation axle box left side oil sealing 33 with stop washer 31, simulation axle box left circles nut 32 is arranged on the outside of simulation axle box left circles nut with stop washer 31, stop washer and the simulation axle box right circles nut symmetrical right-hand member that is arranged on simulation axle box right side oil sealing successively for simulation axle box right circles nut.Simulation axle box left circles nut is standard component (GB T858) with stop washer 31, and simulation axle box left circles nut 32 is also standard component (GB812).In embodiment, they all adopt stop washer and the round nut for round nut that model is M130.
Left end simulation axle box assembly 24 is arranged on the multidiameter of 3 segmentations in walking beam (simulating wheel supporting) left end shaft bearing assembly 25 left sides, right-hand member simulation axle box assembly 28 is arranged on the multidiameter of 2 segmentations on walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27 right sides, left end simulation axle box assembly 24 is second shaft shoulder location with the multidiameter of 3 segmentations of axle 26 by the axle box bearing test, and right-hand member simulation axle box assembly 28 is the shaft shoulder location with the low order end of the multidiameter of 2 segmentations of axle 26 by the axle box bearing test.Test with being threaded on axle 26 with axle box bearing by simulation axle box M130 round nut 36 in the outside of left end simulation axle box assembly 24 and right-hand member simulation axle box assembly 28.
Coupling flange 23 is connected on one section axle of axle box bearing test with 3 segmentation multidiameter high order ends of axle 26 by key, and the right side of coupling flange 23 is connected with the shaft shoulder contact of axle 26 with the axle box bearing test.Reducer shaft end cap 22 is threaded with the left side of axle 26 with the axle box bearing test by the bolt of 4 M20.
Consult Figure 13 and Figure 14, the structure of walking beam (simulating wheel supporting) left end shaft bearing assembly 25 and walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27 is identical.
Described walking beam (simulating wheel supporting) left end shaft bearing assembly 25 includes simulating wheel supporting shaft holder labyrinth oil sealing left end cap 40, stop washer 41, round nut 42, the left spacer 43 of axle box bearing test bearing seat labyrinth oil sealing, axle box bearing 44, walking beam (simulating wheel supporting) bearing seat 45, simulating wheel supporting shaft holder labyrinth oil sealing right end cap 46 and the right spacer 47 of axle box bearing test bearing seat labyrinth oil sealing for round nut.
Walking beam (simulating wheel supporting) bearing seat 45 is support (seat) class formation part, the right cylinder of the horizontal positioned of upper end and the base of lower end, consists of.The right cylinder center of the horizontal positioned of upper end is processed with the manhole of installation shaft axle box bearing 44, the periphery of the cylindrical both sides end face of the horizontal positioned of upper end is processed with respectively the bolt blind hole that 8 M16 bolts are installed, be provided with main supporting plate between the face of cylinder of the cylindrical bottom of the horizontal positioned of upper end and the base plate of base, the cylindrical central axis of main supporting plate and horizontal positioned is vertical and be positioned at cylindrical center, be provided with the arc floor on the Main shoe plate two sides of right cylinder below, also be welded with evenly distributedly 3 vertical gussets between the base plate of arc floor and base, left side back up pad and right side back up pad are that the right cylinder (with main supporting plate) about the horizontal positioned of upper end is installed symmetrically, the inboard of left side back up pad and right side back up pad and bottom successively with a Main shoe plate left side, right side is connected with base plate, process respectively 4 bolt holes that T-shaped bolt is installed on the base plate of main supporting plate both sides, by T-shaped bolt, walking beam (simulating wheel supporting) left end shaft bearing assembly 25 is arranged on the upper workplace of the T-shaped crossbeam 4 of vibration.In embodiment, axle box bearing 44 is bearings of selecting model to be 353130A.
Simulating wheel supporting shaft holder labyrinth oil sealing left end cap 40 is identical with simulating wheel supporting shaft holder labyrinth oil sealing right end cap 46 structures, and the screw symmetry by 8 M16 is arranged on the cylindrical both sides end face of horizontal positioned of walking beam (simulating wheel supporting) bearing seat 45 upper ends respectively.The left spacer 43 of axle box bearing test bearing seat labyrinth oil sealing and right spacer 47 structures of axle box bearing test bearing seat labyrinth oil sealing are identical, be arranged on respectively in the endoporus of simulating wheel supporting shaft holder labyrinth oil sealing left end cap 40 and simulating wheel supporting shaft holder labyrinth oil sealing right end cap 46, the cylindrical outer surface that the left spacer 43 of axle box bearing test bearing seat labyrinth oil sealing and the axle box bearing test bearing seat labyrinth right spacer 47 of oil sealing have ring groove closely cooperates with the internal surface of column that simulating wheel supporting shaft holder labyrinth oil sealing left end cap 40 and simulating wheel supporting shaft holder labyrinth oil sealing right end cap 46 have ring groove respectively, and the position of ring groove is corresponding one by one, with the left end face of the bearing inner ring of the axle box bearing 44 in the centre position that is arranged on cylindrical manhole, with its right end face, contact is connected the inner side end of the inner side end of the left spacer 43 of axle box bearing test bearing seat labyrinth oil sealing and the right spacer 47 of axle box bearing test bearing seat labyrinth oil sealing respectively, play sealing function, the inner periphery of the cylindrical manhole of the outer cylinder surface of axle box bearing 44 and walking beam (simulating wheel supporting) bearing seat 45 closely cooperates, the left side of the outer race of axle box bearing 44 is connected with its right end face of simulating wheel supporting shaft holder labyrinth oil sealing left end cap 40 and the inner side end contact of simulating wheel supporting shaft holder labyrinth oil sealing right end cap 46 respectively with its right end face.Round nut is standard component (GB T858) with stop washer 41, round nut is connected with the outside end contact of the left spacer 43 of axle box bearing test bearing seat labyrinth oil sealing with the inner side end of stop washer 41, and round nut is connected with the inner side end contact of round nut 42 with the outside end face of stop washer 41.Round nut 42 is standard component (GB812), with the axle box bearing test, with axle 26, is threaded.
Walking beam (simulating wheel supporting) left end shaft bearing assembly 25 and walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27 are sleeved on axle box bearing test symmetrically with axle 26 two ends, left and right on one section axle in the multidiameter of close intermediate shaft, the right side of walking beam (simulating wheel supporting) left end shaft bearing assembly 25 is the shaft shoulder location with the left side syllogic multidiameter low order end of axle 26 by the axle box bearing test, the left side of walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27 is the left end shaft shoulder location with the right side two-part multidiameter of axle 26 by the axle box bearing test.Test with being threaded on axle 26 by round nut 42 and axle box bearing on the right side of the left side of walking beam (simulating wheel supporting) left end shaft bearing assembly 25 and walking beam (simulating wheel supporting) right-hand member bearing seat assembly 27.
Consult Figure 14 to Figure 17, testpieces assembly 3 comprises 48, No. 1 analogue framework curb girder pitman shaft assembly of analogue framework right side beam assembly 49, No. 2 analogue framework curb girder pitman shaft assemblies 50, analogue framework left side beam assembly 51 and analogue framework curb girder support platforms 52, wherein analogue framework right side beam assembly 48 is identical with analogue framework left side beam assembly 51 structures, and No. 1 analogue framework curb girder pitman shaft assembly 49 is identical with No. 2 analogue framework curb girder pitman shaft assembly 50 structures.
Analogue framework curb girder support platform 52 is fixed on ground by foot bolt, and analogue framework right side beam assembly 48 and analogue framework left side beam assembly 51 are arranged on the upper working surface of analogue framework curb girder support platform 52 by 16 T-shaped bolt left-right symmetric separately.The left end of No. 1 analogue framework curb girder pitman shaft assembly 49 is arranged on by 8 bolts on No. 1 rectangle seat of upper surface of analogue framework left side beam assembly 51, right-hand member is arranged on by 8 bolts on No. 1 rectangle seat of upper surface of analogue framework right side beam assembly 48, the left end of No. 2 analogue framework curb girder pitman shaft assemblies 50 is arranged on by 8 bolts on No. 2 rectangle seats of upper surface of analogue framework left side beam assembly 51, right-hand member is arranged on by 8 bolts on No. 2 rectangle seats of upper surface of analogue framework right side beam assembly 48, No. 1 analogue framework curb girder pitman shaft assembly 49 that structure is identical and the long limit of No. 2 analogue framework curb girder pitman shaft assemblies 50 are parallel to each other.
Analogue framework left side beam assembly 51 is comprised of analogue framework left side beam 53 and analogue framework left side beam hinge seat 54.Analogue framework left side beam 53 is a case body structural member, its side view is L-type, the left part of analogue framework left side beam 53 is the cuboid casing, the right side of analogue framework left side beam 53 is divided into a semi-girder of the box-type stretched out, place, centre position on the right flank of cuboid casing is provided with No. 3 rectangle seats, analogue framework left side beam hinge seat 54 is bolted on No. 3 rectangle seats by 8, be provided with the large round buss that Open Side Down on semi-girder, on journal box spring group 38 in power train test vibrating shaft general assembly body 11 and simulation axle box circle spring, pad 39 is packed in the round buss of analogue framework left side beam 53, the semi-girder low order end is provided with a vibroshock through hole, one is to pack in the vibroshock through hole of analogue framework left side beam 53 low order ends in vibroshock 36 upper ends.Be provided with two rectangle seats i.e. No. 1 rectangle seat and No. 2 rectangle seats on the upper surface of analogue framework left side beam 53, No. 1 analogue framework curb girder pitman shaft assembly 49 and No. 2 analogue framework curb girder pitman shaft assemblies 50 are bolted on No. 1 rectangle seat and No. 2 rectangle seats by 8 respectively.
Motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform principle of work:
Be connected with the vertical actuator 5 of left end on the T-shaped crossbeam 4 of vibration in motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform, T-shaped crossbeam upper left longitudinal tie and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7, the vertical actuator 8 of right-hand member, T-shaped crossbeam upper right longitudinal tie and actuator assembly 9, T-shaped crossbeam cross-tie and actuator assembly 10, T-shaped crossbeam cross-tie and actuator assembly 10 provide transverse force of vibration for vibrating T-shaped crossbeam 4, the vertical actuator 5 of left end and the vertical actuator 8 of right-hand member provide vertical exciting force for vibrating T-shaped crossbeam 4, T-shaped crossbeam upper left longitudinal tie and actuator assembly 6, T-shaped crossbeam lower end longitudinal tie and actuator assembly 7 and T-shaped crossbeam upper right longitudinal tie and actuator assembly 9 provide vertical exciting force, these 6 actuator drive T-shaped crossbeam 4 simulate for lateral of vibration, vertically, vertical and around horizontal rotation, around rotating longitudinally and vibrating operating mode around this 6DOF of vertical rotation, thereby can simulate the truth of motor train unit axle box bearing actual motion.
Testpieces assembly 3 in motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform can be simulated the interactively of bogie frame and axle box, axletree and single stage suspension in the actual driving process of motor train unit, and test figure is matched with actual condition better.
Power transmission torque detection testing device 1 in motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform is tested with axle 26 to simulate different speed of a motor vehicle operating modes by universal coupling with spider driving shaft axle box bearing.
Embodiment employing and adoptable standard parts and components detail:
1 horizontal actuator of 30T, 3 vertical actuator of 30T and 2 vertical actuator of 50T adopt is the stroke hydraulic cylinder series such as double piston-rod constant speed, choose the hydraulic cylinder of different tonnages according to the test actual conditions, the hydraulic cylinder tonnage that the vertical actuator 8 of the vertical actuator 5 of left end and right-hand member adopts is 50 tons, and the hydraulic cylinder tonnage of 1 horizontal actuator of 30T and 3 vertical actuator employings is 30 tons.
The universal coupling with spider that the model that universal coupling with spider in this example adopts is SWCBH.

Claims (9)

1. a motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform, comprise power transmission torque detection testing device (1) and T-shaped crossbeam assembly (2), described T-shaped crossbeam assembly (2) comprises T-shaped crossbeam cross-tie and actuator assembly (10) and power train test vibrating shaft general assembly body (11), it is characterized in that, described motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform also comprises testpieces assembly (3), testpieces assembly (3) comprises analogue framework right side beam assembly (48), No. 1 analogue framework curb girder pitman shaft assembly (49), No. 2 analogue framework curb girder pitman shaft assemblies (50), analogue framework left side beam assembly (51) and analogue framework curb girder support platform (52),
Analogue framework left side beam assembly (51) adopts T-shaped bolt left-right symmetric to be arranged on the upper workplace of analogue framework curb girder support platform (52) with analogue framework right side beam assembly (48), one end of No. 1 analogue framework curb girder pitman shaft assembly (49) is arranged on by bolt on No. 1 rectangle seat of upper surface of analogue framework left side beam assembly (51), the other end of No. 1 analogue framework curb girder pitman shaft assembly (49) is arranged on by bolt on No. 1 rectangle seat of upper surface of analogue framework right side beam assembly (48), one end of No. 2 analogue framework curb girder pitman shaft assemblies (50) is arranged on by bolt on No. 2 rectangle seats of upper surface of analogue framework left side beam assembly (51), the other end of No. 2 analogue framework curb girder pitman shaft assemblies (50) is arranged on by bolt on No. 2 rectangle seats of upper surface of analogue framework right side beam assembly (48), No. 1 analogue framework curb girder pitman shaft assembly (49) that structure is identical and the long limit of No. 2 analogue framework curb girder pitman shaft assemblies (50) are parallel to each other.
2. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 1, it is characterized in that, described analogue framework left side beam assembly (51) is identical with the structure of analogue framework right side beam assembly (48);
Described analogue framework left side beam assembly (51) is comprised of analogue framework left side beam (53) and analogue framework left side beam hinge seat (54);
Analogue framework left side beam (53) is a case body structural member, it is L-type side-looking, the casing that the front part of analogue framework left side beam (53) is cuboid, the periphery of the bottom of the casing of cuboid is provided with for fixing ring flange, be processed with equably bolt hole on ring flange, the rear section of analogue framework left side beam (53) is the semi-girder stretched out, the centre position of the trailing flank of cuboid casing is provided with the rectangle seat No. 3, analogue framework left side beam hinge seat (54) is bolted on No. 3 rectangle seats, be provided with a round buss on semi-girder, the semi-girder rearmost end is provided with a vibroshock through hole, the upper surface of analogue framework left side beam (53) is provided with No. 1 rectangle seat and No. 2 rectangle seats.
3. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 1, it is characterized in that, described power train test vibrating shaft general assembly body (11) by reducer shaft end cap (22), coupling flange (23), left end simulation axle box assembly (24), walking beam left end shaft bearing assembly (25), axle box bearing for test axle (26), walking beam right-hand member bearing seat assembly (27) and right-hand member simulate axle box assembly (28) and form;
The multidiameter that axle box bearing test is 3 segmentations with the left end of axle (26), the multidiameter that axle box bearing test is 2 segmentations with the right-hand member of axle (26), it between the multidiameter of the multidiameter of 3 segmentations and 2 segmentations, is prismatic intermediate shaft, left shaft holder assembling axon and the right bearing seat assembling axon of two sections axles that are connected with the intermediate shaft two ends for walking beam left end shaft bearing assembly (25) and walking beam right-hand member bearing seat assembly (27) are installed, the outer end of left shaft holder assembling axon and right bearing seat assembling axon is processed with screw thread, be processed with axial keyway on screw thread, left simulation axle box assembling axon and the right simulation axle box assembling axon of two sections axles that are connected with right bearing seat assembling axon two ends with left shaft holder assembling axon for left end simulation axle box assembly (24) and right-hand member simulation axle box assembly (28) are installed, the outer end of left simulation axle box assembling axon and right simulation axle box assembling axon is processed with screw thread, be processed with axial keyway on screw thread, the axle be connected with the left end of left simulation axle box assembling axon is for installing the shaft coupling axle of coupling flange (23), be processed with axial keyway on the shaft coupling axle, be processed with vertically the axial thread hole on the left side of shaft coupling axle,
Walking beam left end shaft bearing assembly (25) and walking beam right-hand member bearing seat assembly (27) are arranged on the left shaft holder assembling axon and right bearing seat assembling axon of axle box bearing test with axle (26) successively, with the axle box bearing test, with the shaft shoulder on the intermediate shaft of axle (26), locate, left end simulation axle box assembly (24) and right-hand member simulation axle box assembly (28) are arranged on the axle box bearing test in walking beam left end shaft bearing assembly (25) and walking beam right-hand member bearing seat assembly (27) outside with on axle (26), coupling flange (23) is sleeved on axle box bearing test with on the shaft coupling axle of the high order end of axle (26) and adopt the key connection.
4. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 3, it is characterized in that, described left end simulation axle box assembly (24) is identical with the structure of right-hand member simulation axle box assembly (28);
Described left end simulation axle box assembly (24) comprise simulation axle box rubber hinge axle (29), simulation axle box (30), simulation axle box left circles nut for stop washer (31), simulation axle box left circles nut (32), simulation axle box left side oil sealing (33), CRH3 axle box bearing (34), simulation axle box watt (35), be rubber blanket (37) under vibroshock (36), simulation axle box circle spring, journal box spring group (38) with the round spring of simulation axle box on rubber blanket (39);
Simulation axle box rubber hinge axle (29) inserts in the hinge axis manhole of simulation axle box (30) front end, rubber blanket (37) under simulation axle box circle spring, on journal box spring group (38) and simulation axle box circle spring, rubber blanket (39) is arranged on the discoidal base on simulation axle box (30) top successively from the bottom to top, under simulation axle box circle spring, rubber blanket (37) is sleeved on discoidal base, the bottom surface of journal box spring group (38) is connected with the upper surface contact of rubber blanket (37) under simulation axle box circle spring, the end face of journal box spring group (38) is connected with the bottom surface contact of rubber blanket (39) on simulation axle box circle spring, the semicircle otic placode and one of the rearmost end of simulation axle box (30) is that the lower end of vibroshock (36) is fixedly connected with, simulation axle box watt (35) and simulation axle box (30) are bolted together, in the lower semi-circular bearing groove of first round bearing groove of simulation axle box (30) and simulation axle box watt (35), CRH3 axle box bearing (34) is installed, simulation axle box left side oil sealing (33) is arranged in the hole in CRH3 axle box bearing (34) outside, the outer circumference surface of simulation axle box left side oil sealing (33) is connected for contact with the interior anchor ring in the hole in the outside, oil sealing (33) right side, simulation axle box left side is connected for contact with the left side of CRH3 axle box bearing (34) inner bearing collar, simulation axle box right side oil sealing is arranged in the hole on CRH3 axle box bearing (34) right side with simulation axle box left side oil sealing (33) symmetry, simulation axle box right side oil-seal outer side face is connected for contact with the interior anchor ring in the hole on right side, the left side of simulation axle box right side oil sealing becomes contact to be connected with the right side of the inner bearing collar of CRH3 axle box bearing (34), simulation axle box left circles nut for stop washer (31) be arranged on the left side of oil sealing (33) on the left of the simulation axle box, simulation axle box left circles nut (32) is arranged on the left side of simulation axle box left circles stop washer (31) for nut, and simulation axle box right circles nut is with stop washer and simulate the axle box right circles nut symmetrical right-hand member that is arranged on simulation axle box right side oil sealing successively.
5. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 4, it is characterized in that, described simulation axle box (30) is the Shell-Class structural member, locate the torus of the hinge axis round tube hole of the level that is provided with centered by its front end, the rear end of simulation axle box (30) is rectangular parallelepiped, be provided with between the torus of hinge axis round tube hole of level and rectangular parallelepiped and linked into an integrated entity by hollow four prisms cylinder, the lower end of rectangular parallelepiped is provided with the level semi-circular through hole that Open Side Down, the axis of rotation of the semi-circular through hole of level is parallel with the axis of rotation of the hinge axis round tube hole of level, be provided with semicircular boss on the both ends of the surface of semi-circular through hole, be processed with bearings mounted first round bearing groove in semi-circular through hole, be welded with discoidal base on the top end face of rectangular parallelepiped, the centre bit of disc-shaped base is equipped with cylindrical protrusions, the rearmost end of simulation axle box (30) is that the lower end of the rear end face of rectangular parallelepiped is provided with the semicircle otic placode with manhole,
Described simulation axle box watt (35) is that the rectangular body by lower end passes through with the semi-circular ring of upper end the symmetrical expression Shell-Class structural member formed mutually, four jiaos of places of rectangular parallelepiped are evenly arranged the round tube hole that is useful on erection bolt, the semi-circular through hole that on rectangular parallelepiped in the part that the two ends of the semi-circular ring of upper end exceed rectangular body and simulation axle box (30), Open Side Down is equipped, is processed with bearings mounted lower semi-circular bearing groove in semi-circular ring.
6. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 3, it is characterized in that, described walking beam left end shaft bearing assembly (25) is identical with the structure of walking beam right-hand member bearing seat assembly (27);
Described walking beam left end shaft bearing assembly (25) includes simulating wheel supporting shaft holder labyrinth oil sealing left end cap (40), stop washer (41), round nut (42), the left spacer of axle box bearing test bearing seat labyrinth oil sealing (43), axle box bearing (44), walking beam bearing seat (45), simulating wheel supporting shaft holder labyrinth oil sealing right end cap (46) and the right spacer of axle box bearing test bearing seat labyrinth oil sealing (47) for round nut;
Simulating wheel supporting shaft holder labyrinth oil sealing left end cap (40) is identical with simulating wheel supporting shaft holder labyrinth oil sealing right end cap (46) structure, by the screw symmetry, be arranged on the cylindrical both sides end face of horizontal positioned of walking beam bearing seat (45) upper end respectively, the left spacer of axle box bearing test bearing seat labyrinth oil sealing (43) is identical with the right spacer of axle box bearing test bearing seat labyrinth oil sealing (47) structure, be arranged on respectively in the endoporus of simulating wheel supporting shaft holder labyrinth oil sealing left end cap (40) and simulating wheel supporting shaft holder labyrinth oil sealing right end cap (46), axle box bearing (44) is arranged on the centre position of the cylindrical manhole of walking beam bearing seat (45) upper end horizontal positioned, with the left side of the bearing inner ring of axle box bearing (44), with its right end face, contact is connected the left end face of its right end face of the left spacer of axle box bearing test bearing seat labyrinth oil sealing (43) and the right spacer of axle box bearing test bearing seat labyrinth oil sealing (47) successively, the left side of the outer race of axle box bearing (44) is connected with its right end face of simulating wheel supporting shaft holder labyrinth oil sealing left end cap (40) and the left end face contact of simulating wheel supporting shaft holder labyrinth oil sealing right end cap (46) respectively with its right end face, the its right end face of stop washer for round nut (41) is connected with the left end face contact of the left spacer of axle box bearing test bearing seat labyrinth oil sealing (43), and the left end face of stop washer for round nut (41) is connected with its right end face contact of round nut (42).
7. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 6, it is characterized in that, described walking beam bearing seat (45) is bearing class formation part, by the right cylinder of the horizontal positioned of upper end and the base of lower end, formed, the right cylinder center of the horizontal positioned of upper end is processed with the manhole of installation shaft axle box bearing (44), the periphery of this manhole evenly is provided with the tapped blind hole of erection bolt, be provided with main supporting plate between the face of cylinder, the cylindrical end of horizontal positioned and the base plate of base, the cylindrical central axis of main supporting plate and horizontal positioned is vertical and be positioned at the center of right cylinder axial length, be provided with symmetrically the arc floor on the Main shoe plate two sides of right cylinder below, be welded with equably 3 vertical gussets between arc floor on the main supporting plate two sides and the base plate of base, left side back up pad and right side back up pad are installed symmetrically with respect to Main shoe plate left end and right-hand member, the inboard of left side back up pad and right side back up pad and bottom successively with Main shoe plate left side, right side is connected with base plate, be processed with respectively the bolt hole that T-shaped bolt is installed on the base plate of main supporting plate both sides.
8. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 1, it is characterized in that, described T-shaped crossbeam cross-tie and actuator assembly (10) comprise that actuator (15), T-shaped crossbeam connect drag link ball socket joint (16), pull bar (17), actuator base (18), bearing pin connection seat (19), curved boom (20) and actuator and curved boom Connection Block (21);
The right-hand member earrings of pull bar (17) connects with T-shaped crossbeam No. 1 oscillating bearing that drag link ball socket joint (16) is GEG90ES-2RS by model and realizes that ball pivot is connected, No. 2 oscillating bearings that the through hole of the ears ring of pull bar (17) left end and curved boom (20) upper end is GEG90ES-2RS by model realize that ball pivot is connected, the through hole in curved boom (20) lower left corner and bearing pin connection seat (19) adopt No. 1 bearing pin to be rotationally connected, the through hole of curved boom (20) right-hand member and the ears ring on actuator base (21) are rotationally connected by No. 2 bearing pins, actuator is fixedly connected with the top of actuator (15) with curved boom Connection Block (21), No. 3 oscillating bearings that the bottom of actuator (15) is GEG90ES-2RS with actuator base (18) by model realize that ball pivot is connected.
9. according to motor train unit power train axle box bearing six degree of freedom dynamic similation bracket loading test platform claimed in claim 1, it is characterized in that, described T-shaped crossbeam assembly (2) is arranged on the centre position of ground, power transmission torque detection testing device (1) is arranged on T-shaped crossbeam assembly (2) left side, power transmission torque detection testing device (1) is connected by the universal coupling with spider in power transmission torque detection testing device (1) with T-shaped crossbeam assembly (2), testpieces assembly (3) is arranged on the ground of top of T-shaped crossbeam assembly (2), the upper surface of the rectangle carrying platform (55) in the analogue framework curb girder support platform (52) in testpieces assembly (3) and power transmission torque detection testing device (1) is in same level, the upper surface of the T-shaped crossbeam of vibration (4) in T-shaped crossbeam assembly (2) exceeds 50mm in surface level and than the upper surface of the rectangle carrying platform (55) in analogue framework curb girder support platform (52) and power transmission torque detection testing device (1), the long limit adjacent with analogue framework curb girder support platform (52), the long limit of the T-shaped worktable in upper end of the T-shaped crossbeam of vibration (4) in T-shaped crossbeam assembly (2) parallels, distance between the two is 20mm.
CN2013203909727U 2013-07-02 2013-07-02 Motor train unit power train axle box bearing six degree of freedom dynamic simulation loading testbed Expired - Fee Related CN203324016U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103323246B (en) * 2013-07-02 2015-11-04 吉林大学 Motor train unit transmission system axle box bearing six degree of freedom dynamic similation bracket loading test platform
CN107505149A (en) * 2017-09-23 2017-12-22 吉林大学 The dimension vibration earthing or grounding means testing stand of hydraulic actuator excitation five
CN107607338A (en) * 2017-09-23 2018-01-19 吉林大学 Motor train unit transmission system axle box bearing Cylinder Gear exciter test platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103323246B (en) * 2013-07-02 2015-11-04 吉林大学 Motor train unit transmission system axle box bearing six degree of freedom dynamic similation bracket loading test platform
CN107505149A (en) * 2017-09-23 2017-12-22 吉林大学 The dimension vibration earthing or grounding means testing stand of hydraulic actuator excitation five
CN107607338A (en) * 2017-09-23 2018-01-19 吉林大学 Motor train unit transmission system axle box bearing Cylinder Gear exciter test platform

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