CN107300470B - Axle box bearing is comprehensive performance test bed - Google Patents
Axle box bearing is comprehensive performance test bed Download PDFInfo
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- CN107300470B CN107300470B CN201710690503.XA CN201710690503A CN107300470B CN 107300470 B CN107300470 B CN 107300470B CN 201710690503 A CN201710690503 A CN 201710690503A CN 107300470 B CN107300470 B CN 107300470B
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- spring
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- 238000011056 performance test Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 claims abstract description 66
- 238000000429 assembly Methods 0.000 claims abstract description 29
- 230000000712 assembly Effects 0.000 claims abstract description 29
- 238000002474 experimental method Methods 0.000 claims description 59
- 238000007789 sealing Methods 0.000 claims description 52
- 238000009434 installation Methods 0.000 claims description 49
- 230000003068 static effect Effects 0.000 claims description 38
- 238000011068 loading method Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 241000271559 Dromaiidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of axle box bearing is comprehensive performance test bed.It is made of electromagnetic exciter, exciting load cell assembly and testing equipment assembly, electromagnetic exciter is two, exciting load cell assembly is identical for two structures, and including sensor pin axle bed and exciting sensor, sensor pin axle bed is connected with exciting sensor by axis pin ball-joint；Testing equipment assembly bolt is fixed on 1, No. 2 electromagnetic exciter, 1st, the lower end of No. 2 exciting load cell assemblies is bolted on respectively on 1, No. 2 electromagnetic exciter, and the upper end of 1, No. 2 exciting load cell assembly is connect respectively with 1, No. 2 axle box exciting fixture in testing equipment assembly by axis pin ball-joint.The configuration of the present invention is simple, can analog orbit vehicle axle box bearing on actual track run when speed and Vibration Condition, experimental enviroment is true and reliable, overcomes the problem of rail vehicle cannot do EMU axle box bearing reliability test in actual operation.
Description
Technical field
The present invention relates to a kind of rail car axle box bearing test device, it is more particularly related to a kind of axle box
Bearings synthesis performance test stand.
Background technology
High-speed EMUs is one of core technology of high-speed railway, and axle box bearing is important composition in EMU driving process
Part, in EMU actual motion, the quality of axle box bearing performance directly influences the safety of EMU operation, if axis
Axle box bearing damages, it will loses the running accuracy of bearing, vibration increases, and generates noise and rotational resistance, will when serious
Cause great vehicle safety accident.Therefore, Reliability Check is carried out to EMU axle box bearing to have the safe operation of EMU
It is significant.
Invention content
The present invention provides a kind of simple in structure, can analog orbit vehicle axle box bearing when being run on actual track
Speed and Vibration Condition can provide true and reliable experimental enviroment for rail car axle box bearing when carrying out bench test,
The problem of rail vehicle cannot do EMU axle box bearing reliability test in actual operation is overcome, provides a kind of axle box
Bearings synthesis performance test apparatus.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization, it is described with reference to the drawings as follows：
A kind of axle box bearing is comprehensive performance test bed, is set by electromagnetic exciter, exciting load cell assembly and experiment
Standby assembly forms, and the electromagnetic exciter is placed in equipment mounting foundation side by side for two, described two electromagnetic exciters
It is placed in equipment mounting foundation side by side, described two exciting load cell assembly structures are identical, including sensor pin
Axle bed (6) and exciting sensor (7), the sensor pin axle bed (6) are connected with exciting sensor (7) by axis pin ball-joint；
The testing equipment assembly (5) is bolted on 1, No. 2 electromagnetic exciter (1,3), No. 1 exciting force-measuring sensing
Device assembly (2) lower end is bolted on No. 1 electromagnetic exciter (1), No. 2 excitings load cell assembly
(4) lower end is bolted on No. 2 electromagnetic exciters (3)；
No. 1 exciting load cell assembly (2) upper end and No. 1 axle box exciting in testing equipment assembly (5)
Fixture (13) is connected by axis pin ball-joint, No. 2 exciting load cells assembly (4) upper end and testing equipment assembly
(5) No. 2 axle box exciting fixtures (14) in are connected by axis pin ball-joint.
The testing equipment assembly 5 by testing equipment installation frame 8,1, No. 2 counter-force gantry assembly 9,10,1, No. 2
Lateral exciting linkage 11,12,1, No. 2 axle box exciting fixtures 13,14, experiment axis and axle box assembly 15, directional transverse exciting
17 and 1, No. 2 actuator 16, driving motor dampers 20,21 form, the testing equipment installation frame 8 be by rectangular steel pipe and
Circular steel plate is welded structural member, and there are two the crossbeam for 1, No. 2 electromagnetic exciter 1,3 of installation, testing equipments for lower end setting
The centre of installation frame 8 supplies to test the bearing mounting plate of axis installation axle box assembly 15 there are two also setting up.
Described 1, No. 2 counter-force gantry assembly 9,10 is bolted on testing equipment installation frame 8, the examination
Axis is tested to be bolted on testing equipment installation frame 8 with 1, No. 2 spring bearing base device 35,37 in axle box assembly 15
On two bearing mounting plates of setting, the swing arm of the experiment axis and 1, No. 2 axle box assembly 34,38 in axle box assembly 15 is pacified
Dress end is fixed on by semicircle pressing plate on 1, No. 2 counter-force gantry assembly 9,10 respectively, the experiment axis and axle box assembly 15
In 1, No. 2 axle box assembly 34,38 top respectively with being connect with 33 face of journal box spring in 1, No. 2 counter-force gantry assembly 9,10
Touch connection；Described 1, No. 2 axle box exciting fixture 13,14 structures are identical, and 1, No. 2 axle box exciting fixture 13,14 passes through bolt respectively
It is fastened on 1, No. 2 axle box assembly 34,38；The directional transverse exciting actuator 16 is bolted on testing equipment installation
On frame 8 on lateral exciting actuator installation crossbeam, the motor support base 18 is bolted on testing equipment installation frame 8
On, the driving motor 17 is fixed on motor support base 18, and driving motor 17 is with experiment axis with axle box assembly 15 by being driven skin
Band 19 is rotatablely connected, and No. 1 damper (20) lower end is bolted on No. 1 axle box assembly (34), No. 2 dampings
Device (21) lower end is bolted on No. 2 axle box assemblies (38)；No. 1 damper (20) upper end passes through bolt and No. 1
Counter-force gantry assembly (9) is fastenedly connected, and No. 2 dampers (21) upper end passes through bolt and No. 2 counter-force gantry assemblies
(10) it is fastenedly connected.
Described 1, No. 2 lateral exciting linkage 11,12 structures are identical, including axle box connecting plate 22, lateral exciting mistake
Cab apron 23 and actuator connecting lug 24, the axle box connecting plate 22 are bolted connection with lateral exciting rebound 23,
The transverse direction exciting rebound 23 is connect with actuator connecting lug 24 by axis pin ball-joint；
Axle box connecting plate 22 in described No. 1 lateral exciting linkage 11 passes through bolt and experiment axis and axle box assembly 15
In No. 1 axle box assembly 34 connect, the axle box connecting plate 22 in No. 2 lateral exciting linkages 12 passes through bolt and experiment
Axis is connect with No. 2 axle box assemblies 38 in axle box assembly 15, the actuator in described 1, No. 2 lateral exciting linkage 11,12
Connecting lug 24 is connect respectively by axis pin with 16 ball-joint of directional transverse exciting actuator.
No. 1 counter-force gantry assembly 9 is identical with No. 2 counter-force gantry 10 structures of assembly, is added by axle box static(al)
It carries and puts 25, No. 1 gantry upright posts 26, gantry beam 27 and No. 2 gantry upright posts 28 and form, No. 1 gantry upright post 26, gantry are horizontal
Beam 27 and No. 2 gantry upright posts 28 are the weldment that steel pipe and steel plate are welded, the gantry beam 27 respectively with No. 1 gantry
Column 26 and No. 2 gantry upright posts 28 are bolted by connecting plate；
No. 1 gantry upright post 26 is additionally provided with for the swing arm installation end on No. 1 axle box assembly 34 and No. 2 axle box assemblies 38
Fixed trapezoidal steel plate, the axle box static force loading device 25 are mounted among gantry beam 27；
The axle box static force loading device 25 is by static loading actuator 29, actuator installs rebound 30, static(al) dynamometry
Sensor 31, spring upper end gland 32 and journal box spring 33 form, the static loading actuator 29 and actuator installation transition
Plate 30 is bolted to connection, the static(al) load cell 31 and the actuator force application rod screw thread of static loading actuator 29
Connection, the static(al) load cell 31 are fastenedly connected with spring upper end gland 32 by bolt thread, journal box spring 33 and bullet
Gland 32 face in spring upper end connects.
The experiment axis is total by 34, No. 1 spring bearing base devices 35 of No. 1 axle box assembly, experiment axis with axle box assembly 15
It is formed into 36, No. 2 spring bearing base devices 37 and No. 2 axle box assemblies 38, wherein No. 1 axle box assembly 34 and No. 2 axle box assemblies 38
Using the original axle box assembly of EMU, to ensure the authenticity of test data；
The experiment axle assembly 36 is by experiment 41, No. 2 axle box axis of axle box oil sealing of axle box bearing 40,1 of axis 39,1
Hold 42, No. 2 axle box oil sealings 43,1 spring bearing oil sealing 44,1 spring bearing 45, No. 2 spring bearing oil sealings 46, driven pulleys
47th, 48, No. 2 spring bearings 49 of No. 3 spring bearing oil sealings and No. 4 spring bearing oil sealings 50 form, wherein No. 1 40 He of axle box bearing
No. 2 42 structures of axle box bearing are identical, are testpieces, practical with axle box bearing, No. 1 axle box oil sealing 41 and 2 using EMU
Number 43 structure of axle box oil sealing is identical, using EMU with axle box oil sealing.
The experiment axis 39 is a multi-diameter shaft, be sequentially installed with thereon 40, No. 1 axle box oil sealings 41 of No. 1 axle box bearing,
No. 1 47, No. 3 spring bearing 45,2 of spring bearing oil sealing 44,1 spring bearing oil sealing 46, driven pulley spring bearing oil sealings
48th, No. 2 axle box oil sealings 43 of spring bearing oil sealing 50,2 of spring bearing 49,4 and No. 2 axle box bearings 42,
No. 1 axle box bearing 40 and No. 2 axle box bearings 42 are separately mounted to the both ends of experiment axis 39, and interior is No. 1
Spring bearing 45 and No. 2 spring bearings 49, the driven pulley 47 are sequentially connected with experiment 39 key of axis.
No. 1 spring bearing base device 35 is identical with No. 2 37 structures of spring bearing base device, by bearing seat supports sky
Gas spring 58, bearing block base 59, bearing block head cover 60 and temperature sensor 61 form, the bearing seat supports air spring 58
Top and bottom are both provided with connecting flange, and the bearing block head cover 60 is bolted with bearing block base 59, the axis
Bearing pedestal 59 is connect by disk with 58 upper end connecting flange of bearing seat supports air spring, and the temperature sensor 61 passes through
Bolt is fixed on the top of bearing block head cover 60, for measure test during No. 1 spring bearing 45 and No. 2 spring bearings 49
Temperature prevents No. 1 spring bearing 45 and No. 2 excessively high damage bearings of 49 temperature of spring bearing during experiment.
Compared with prior art, the beneficial effects of the invention are as follows：
This testing stand can analog orbit vehicle axle box bearing in practical road test rotating speed and vibration working condition, so as to
It can ensure that the data provided have more correctness and authenticity.
1st, axle box bearing of the present invention it is comprehensive performance test bed solve it is existing in EMU in actual motion line
The infeasible problem of rail car axle box bearing test is carried out under the operating mode of road.
2nd, comprehensive performance test bed can realize of axle box bearing of the present invention provides speed 500km/h to axle box bearing
Within experimental enviroment, China can be met completely and run or the experiment of EMU axle box bearing being developed, to carrying
The safe operation of high EMU and the development for accelerating EMU technology have good facilitation, while also have society well
Benefit and economic benefit.
3rd, the comprehensive performance test bed EMU that can accurately simulate of axle box bearing of the present invention is in actual track
Rail car axle box bearing Vibration Condition, for rail car axle box bearing test provide well test basis, ensure
The accuracy of test data.
4th, axle box bearing of the present invention is comprehensive performance test bed reasonable in design, will by the way of bolt fastening
Each parts are installed on basic framework, if a certain parts break down, it may be convenient to which maintenance is replaced, and is substantially increased
The comprehensive performance test bed test efficiency of axle box bearing.
Description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is the comprehensive performance test bed axonometric projection view of axle box bearing of the present invention；
Fig. 2 is that the axis of the comprehensive performance test bed middle exciting load cell assembly of axle box bearing of the present invention surveys throwing
Video display figure；
Fig. 3 is that the axonometric projection of the comprehensive performance test bed middle testing equipment assembly of axle box bearing of the present invention regards
Figure；
Fig. 4 is the reversed axonometric projection of the comprehensive performance test bed middle testing equipment assembly of axle box bearing of the present invention
View；
Fig. 5 is that the axonometric projection of the comprehensive performance test bed middle experiment equipment mounting frame of axle box bearing of the present invention regards
Figure；
Fig. 6 is the axonometric projection of the comprehensive performance test bed middle lateral exciting linkage of axle box bearing of the present invention
Figure；
Fig. 7 is that the axonometric projection of the comprehensive performance test bed middle counter-force gantry assembly of axle box bearing of the present invention regards
Figure；
Fig. 8 is the axonometric projection view of the comprehensive performance test bed middle static force loading device of axle box bearing of the present invention；
Fig. 9 is the axonometric projection of the comprehensive performance test bed middle experiment axis of axle box bearing of the present invention and axle box assembly
Figure；
Figure 10 is the axonometric projection graph of the comprehensive performance test bed middle experiment axle assembly of axle box bearing of the present invention；
Figure 11 is the axonometric projection graph of the comprehensive performance test bed middle experiment axis of axle box bearing of the present invention；
Figure 12 is the axonometric projection graph of the comprehensive performance test bed middle spring bearing base device of axle box bearing of the present invention；
In figure：No. 1.1 electromagnetic exciters；No. 2.1 exciting load cell assemblies；No. 3.2 electromagnetic exciters；4.2 number
Exciting load cell assembly；5. testing equipment assembly；6. sensor pin axle bed；7. exciting sensor；8. testing equipment
Installation frame；No. 9.1 counter-force gantry assemblies；No. 10.2 counter-force gantry assemblies；No. 11.1 lateral exciting linkages；12.2
Number lateral exciting linkage；No. 13.1 axle box exciting fixtures；No. 14.2 axle box exciting fixtures；15. test axis and axle box assembly；
16. directional transverse exciting actuator；17. driving motor；18. motor support base；19. driving belt；20.1 number damper；No. 21.2
Damper；22. axle box connecting plate；23. lateral exciting rebound；24. actuator connecting lug；25. axle box static force loading device；
26.1 number gantry upright post；27. gantry beam；28.2 number gantry upright post；29. static loading actuator；30. actuator installs transition
Plate；31. static(al) load cell；32. spring upper end gland；33. journal box spring；No. 34.1 axle box assemblies；35.1 number support shaft
Bearing device；36. test axle assembly；No. 37.2 spring bearing base devices；No. 38.2 axle box assemblies；39. experiment axis；No. 40.1
Axle box bearing；No. 41.1 axle box oil sealings；42.2 number axle box bearing；No. 43.2 axle box oil sealings；No. 44.1 spring bearing oil sealings；45.1
Number spring bearing；No. 46.2 spring bearing oil sealings；47. driven pulley；No. 48.3 spring bearing oil sealings；49.2 number spring bearing；
No. 50.4 spring bearing oil sealings；No. 51.1 axle box bearing installation axles；52.1 number transition axis；No. 53.1 spring bearing installation axles；54.
Jackshaft；No. 55.2 spring bearing installation axles；56.2 number transition axis；No. 57.2 axle box bearing installation axles；58. bearing seat supports are empty
Gas spring；59. bearing block base；60. bearing block head cover；61. temperature sensor.
Specific embodiment
The present invention is explained in detail below in conjunction with the accompanying drawings：
Refering to Fig. 1 and Fig. 2, the axle box bearing is comprehensive performance test bed by 1, No. 1 exciting dynamometry of No. 1 electromagnetic exciter
The exciting load cell assembly 4 of electromagnetic exciter 3,2 of sensor assembly 2,2 and testing equipment assembly 5 form,
In No. 1 exciting load cell assembly 2 it is identical with No. 2 exciting load cell 4 structures of assembly, including sensor
Axis pin base 6 and exciting sensor 7, sensor pin axle bed 6 and exciting sensor 7 are connected by axis pin ball-joint.
No. 1 electromagnetic exciter 1 and No. 2 electromagnetic exciters 3 are placed on side by side in equipment mounting foundation, testing equipment assembly
5 are bolted on No. 1 electromagnetic exciter 1 and No. 2 electromagnetic exciters 3, under No. 1 exciting load cell assembly 2
End is bolted on No. 1 electromagnetic exciter 1, and the lower end of No. 2 exciting load cell assemblies 4 is bolted on
On No. 2 electromagnetic exciters 3, the upper end of No. 1 exciting load cell assembly 2 is swashed with No. 1 axle box in testing equipment assembly 5
The fixture 13 that shakes is connected by axis pin ball-joint, in the upper end of No. 2 exciting load cell assemblies 4 and testing equipment assembly 5
No. 2 axle box exciting fixtures 14 connected by axis pin ball-joint.
Refering to Fig. 3 to Fig. 6, the testing equipment assembly 5 includes 8, No. 1 counter-force gantry dresses of testing equipment installation frame
11, No. 2 lateral exciting 12, No. 1 axle boxes of linkage of the counter-force gantry assembly 10,1 of ligand 9,2 transverse direction exciting linkage
13, No. 2 axle box exciting fixtures 14 of exciting fixture, experiment axis and axle box assembly 15, directional transverse exciting actuator 16, driving motor
17th, motor support base 18,19, No. 1 dampers 20 of driving belt and No. 2 dampers 21.
Testing equipment installation frame 8 is welding class formation part, is welded by rectangular steel pipe and circular steel plate, lower end setting
There are two for connecting the crossbeam used with No. 1 electromagnetic exciter 1 and No. 2 electromagnetic exciters 3, upper end is provided with to be made for lateral exciting
The lateral exciting actuator installation crossbeam of dynamic device installation, the centre of testing equipment installation frame 8 also set up that there are two for experiment axis
The bearing mounting plate being connect with axle box assembly 15, and it is provided with 6-8 circular through hole on a mounting board.
No. 1 counter-force gantry assembly 9 and No. 2 counter-force gantry assemblies 10 are bolted on testing equipment installing frame
On frame 8, experiment axis passes through bolt with No. 1 spring bearing base device 35 in axle box assembly 15 and No. 2 spring bearing base devices 37
It is fixed on two bearing mounting plates set on testing equipment installation frame 8, experiment axis and No. 1 axis in axle box assembly 15
Swing arm installation end on box assembly 34 and No. 2 axle box assemblies 38 is fixed on No. 1 counter-force gantry by semicircle pressing plate respectively and assembles
On body 9 and No. 2 counter-force gantry assemblies 10, top and No. 1 counter-force of the experiment axis with No. 1 axle box assembly 34 in axle box assembly 15
33 face of journal box spring in gantry assembly 9 connects, the top of experiment axis and No. 2 axle box assemblies 38 in axle box assembly 15
It is connected with 33 face of journal box spring in No. 2 counter-force gantry assemblies 10, No. 1 axle box exciting fixture 13 and No. 2 axle box excitings
14 structure of fixture is identical, and No. 1 axle box exciting fixture 13 is fastened on experiment axis and 1 in axle box assembly 15 by 4 bolts
On number axle box assembly 34, No. 2 axle box exciting fixtures 14 are fastened on experiment axis and No. 2 axis in axle box assembly 15 by 4 bolts
On box assembly 38, directional transverse exciting actuator 16 is bolted on testing equipment installation frame 8 lateral exciting start
On device installation crossbeam, motor support base 18 is bolted on testing equipment installation frame 8, driving motor 17 and motor support base
18 are bolted connection, and driving motor 17 and experiment axis are rotatablely connected with axle box assembly 15 by driving belt 19, and No. 1 subtracts
The lower end of shake device 20 is bolted on experiment axis and on No. 1 axle box assembly 34 in axle box assembly 15, upper end passes through bolt
It is fastenedly connected with No. 1 counter-force gantry assembly 9, the lower end of No. 2 dampers 21 is bolted on experiment axis and axle box assembly
On No. 2 axle box assemblies 38 in 15, upper end is fastenedly connected by bolt and No. 2 counter-force gantry assemblies 10.
No. 1 lateral exciting linkage 11 is identical with No. 2 lateral exciting 12 structures of linkage, connects including axle box
Fishplate bar 22, lateral exciting rebound 23 and actuator connecting lug 24, axle box connecting plate 22 and lateral exciting rebound 23 pass through
Bolt is fastenedly connected, and lateral exciting rebound 23 is connected with actuator connecting lug 24 by axis pin ball-joint.
Axle box connecting plate 22 in No. 1 lateral exciting linkage 11 is by bolt with testing in axis and axle box assembly 15
No. 1 axle box assembly 34 connects, and the actuator connecting lug 24 in No. 1 lateral exciting linkage 11 passes through axis pin and directional transverse
16 ball-joint of exciting actuator connects, and the axle box connecting plate 22 in No. 2 lateral exciting linkages 12 passes through bolt and experiment axis
It is connect with No. 2 axle box assemblies 38 in axle box assembly 15, the actuator connecting lug 24 in No. 2 lateral exciting linkages 12 is logical
Axis pin is crossed to connect with 16 ball-joint of directional transverse exciting actuator.
Refering to Fig. 7 and Fig. 8, described No. 1 counter-force gantry assembly 9 and No. 2 10 complete phases of structure of counter-force gantry assembly
Together, it is made of 25, No. 1 gantry upright posts 26 of axle box static force loading device, gantry beam 27 and No. 2 gantry upright posts 28, No. 1 gantry
Column 26, gantry beam 27 and No. 2 gantry upright posts 28 are the weldment that steel pipe and steel plate are welded, No. 1 gantry upright post 26
Be both provided on the lower end connecting plate of No. 2 gantry upright posts 28 4 for bolts by circular through hole, No. 1 gantry upright post 26 and 2
Be both provided on the upper end connecting plate of number gantry upright post 28 6 for bolts by circular through hole, No. 1 gantry upright post 26 also sets up
There is the fixed trapezoidal steel plate of swing arm installation end supplied on No. 1 axle box assembly 34 and No. 2 axle box assemblies 38, set among gantry beam 27
The cylindrical hole installed for axle box static force loading device 25 is equipped with, and along the circumferential direction uniform in the upper surface of cylindrical hole
4 threaded holes are provided with, the left and right sides of gantry beam 27 also sets one piece of rectangular steel plates respectively, for gantry beam 27 and No. 1
26, No. 2 connections of gantry upright post 28 of gantry upright post use, and gantry beam 27 is bolted connection with No. 1 gantry upright post 26, dragon
Door crossbeam 27 and No. 2 gantry upright posts 28 are bolted connection, and axle box static force loading device 25 is bolted on gantry
It is provided among crossbeam 27 on the cylindrical hole installed for axle box static force loading device 25.
Axle box static force loading device 25 is by static loading actuator 29, actuator installs rebound 30, static(al) force-measuring sensing
Device 31, spring upper end gland 32 and journal box spring 33 form, and static loading actuator 29 and actuator installs rebound 30 pass through
Bolt is fixedly connected, and static(al) load cell 31 is threadedly coupled with the actuator force application rod of static loading actuator 29, and static(al) is surveyed
Force snesor 31 is fastenedly connected with spring upper end gland 32 by bolt thread, and journal box spring 33 connects with 32 face of spring upper end gland
Touch connection.
Refering to Fig. 9 to Figure 12, the experiment axis is filled with axle box assembly 15 by 34, No. 1 supporting bearing bases of No. 1 axle box assembly
It puts 35, experiment 36, No. 2 spring bearing base devices 37 of axle assembly and No. 2 axle box assemblies 38 forms, wherein No. 1 axle box assembly 34 and 2
Number axle box assembly 38 is using the original axle box assembly of EMU, to ensure the authenticity of test data.
The experiment axle assembly 36 is by experiment 41, No. 2 axle box axis of axle box oil sealing of axle box bearing 40,1 of axis 39,1
Hold 42, No. 2 axle box oil sealings 43,1 spring bearing oil sealing 44,1 spring bearing 45, No. 2 spring bearing oil sealings 46, driven pulleys
47th, 48, No. 2 spring bearings 49 of No. 3 spring bearing oil sealings and No. 4 spring bearing oil sealings 50 form, wherein No. 1 40 He of axle box bearing
No. 2 42 structures of axle box bearing are identical, are testpieces, practical with axle box bearing, No. 1 axle box oil sealing 41 using EMU
It is identical with No. 2 43 structures of axle box oil sealing, using EMU with axle box oil sealing.
The experiment axis 39 is a multi-diameter shaft, by No. 1 branch of transition axis 52,1 of axle box bearing installation axle 51,1
Support bearing installation axle 53, the transition axis 56 of spring bearing installation axle 55,2 of jackshaft 54,2 and No. 2 axle box bearing installation axles 57
Composition, and the keyway installed for driven pulley 47 is provided in the left side of jackshaft 54, driven pulley 47 and experiment 39 key of axis
It is sequentially connected, the shaft shoulder face between the right side of No. 1 axle box oil sealing 41 and No. 1 axle box bearing installation axle 51 and No. 1 transition axis 52
It connects, the left side of No. 1 axle box oil sealing 41 and the right side face of the bearing inner ring of No. 1 axle box bearing 40 connect, No. 1
Axle box bearing 40 is interference fitted with No. 1 axle box bearing installation axle 51, and No. 1 spring bearing 45 is mounted on No. 1 spring bearing installation axle
It on 53, and is interference fitted, the right side of No. 1 spring bearing oil sealing 44 and the left side face of the bearing inner ring of No. 1 spring bearing 45
It connecting, No. 2 46 left sides of spring bearing oil sealing and the right side face of the bearing inner ring of No. 1 spring bearing 45 connect, and 2
Shaft shoulder face number between the left side of axle box oil sealing 43 and No. 2 transition axises 56 and No. 2 axle box bearing installation axles 57 connects, and 2
The right side of number axle box oil sealing 43 and the left side face of the bearing inner ring of No. 2 axle box bearings 42 connect, No. 2 axle box bearings 42
It is interference fitted with No. 2 axle box bearing installation axles 57, No. 2 spring bearings 49 are mounted in No. 2 spring bearing installation axles 55, and interference
Cooperation, the right side of No. 3 spring bearing oil sealings 48 and the left side face of the bearing inner ring of No. 2 spring bearings 49 connect, No. 4
50 left side of spring bearing oil sealing and the right side face of the bearing inner ring of No. 2 spring bearings 49 connect, No. 1 axle box assembly 34
It is connected with No. 1 40 outer race face of axle box bearing, No. 2 axle box assemblies 38 are contacted with No. 2 42 outer race faces of axle box bearing
Connection, No. 1 spring bearing base device 35 and No. 1 45 outer race face of spring bearing connect, No. 2 spring bearing base devices 37
It is connected with No. 2 49 outer race faces of spring bearing.
No. 1 spring bearing base device 35 is identical with No. 2 37 structures of spring bearing base device, including bearing
Seat supports air spring 58, bearing block base 59, bearing block head cover 60 and temperature sensor 61, bearing seat supports air spring 58
Top and bottom are both provided with connecting flange, and the lower end connecting flange of bearing seat supports air spring 58 is circumferentially provided with 6-8
A circular through hole connect use with testing equipment installation frame 8 for spring bearing base device, bearing seat supports air spring 58
Upper end connecting flange is circumferentially provided with 12-18 circular through hole, for bearing seat supports air spring 58 and bearing block base 59
Connection uses, and bearing block base 59 is casting class formation part, and lower end is provided with the disk installed and used for bearing block base 59, and
The circumference of disk is provided with 12-18 circular through hole, bearing block head cover 60 is connect, and axis by bolt with bearing block base 59
60 inboard bearing contact surface of bearing head cover and 59 inboard bearing contact surface concentric of bearing block base, temperature sensor 61 pass through spiral shell
Bolt is fixed on the top of bearing block head cover 60, for measuring the temperature of No. 1 spring bearing 45 and No. 2 spring bearings 49 during experiment
Degree prevents No. 1 spring bearing 45 and No. 2 excessively high damage bearings of 49 temperature of spring bearing during experiment, influences result of the test.
The present invention operation principle be：
Driving motor 17 is rotated with dynamic test axle assembly 36, total to experiment axis by adjusting the rotating speed realization of driving motor 17
Into 36 rotational speed regulation, so as to fulfill to the experiment under different rotating speeds, realized by axle box static force loading device 25 to No. 1 axle box
Assembly 34 and No. 2 38 static loadings of axle box assembly are changed by changing the size of loading force of static loading actuator 29 to No. 1
Axle box assembly 34 and No. 2 38 static loadings of axle box assembly, by No. 1 electromagnetic exciter 1 and No. 2 electromagnetic exciters 3 to testing axis
The excited frequency different from the offer of axle box assembly and exciting acceleration pass through static loading under different rotating speeds, different, difference
To No. 1 axle box bearing 40 of axle box assembly 38,1 of axle box assembly 34,2 and No. 2 axis under excited frequency and different exciting acceleration
Axle box bearing 42 is tested for the property.
Claims (9)
1. a kind of axle box bearing is comprehensive performance test bed, by electromagnetic exciter, exciting load cell assembly and testing equipment
Assembly forms, it is characterised in that：
The electromagnetic exciter is 1, No. 2 electromagnetic exciter (1,3), and two electromagnetic exciters are placed on equipment mounting foundation side by side
On；The exciting load cell assembly be 1, No. 2 exciting load cell assembly (2,4), two exciting force-measuring sensings
Device assembly structure is identical, including sensor pin axle bed (6) and exciting sensor (7)；The sensor pin axle bed (6) and swash
Vibration sensor (7) is connected by axis pin ball-joint；The testing equipment assembly (5) is bolted on 1, No. 2 electromagnetism and swashs
It shakes on device (1,3), No. 1 exciting load cell assembly (2) lower end is bolted on No. 1 electromagnetic exciter (1)
On, No. 2 exciting load cells assembly (4) lower end is bolted on No. 2 electromagnetic exciters (3)；
No. 1 exciting load cell assembly (2) upper end and No. 1 axle box exciting fixture in testing equipment assembly (5)
(13) it is connected by axis pin ball-joint, No. 2 exciting load cells assembly (4) upper end and testing equipment assembly (5)
In No. 2 axle box exciting fixtures (14) connected by axis pin ball-joint.
2. a kind of axle box bearing according to claim 1 is comprehensive performance test bed, it is characterised in that：
The testing equipment assembly (5) is by testing equipment installation frame (8), 1, No. 2 counter-force gantry assembly (9,10), 1,2
It is number lateral exciting linkage (11,12), 1, No. 2 axle box exciting fixture (13,14), experiment axis and axle box assembly (15), two-way
Lateral exciting actuator (16), driving motor (17) and 1, No. 2 damper (20,21) composition, the testing equipment installation frame
(8) it is to be welded structural member by rectangular steel pipe and circular steel plate, there are two for 1, No. 2 electromagnetic exciter of installation for lower end setting
The crossbeam of (1,3), the centre of testing equipment installation frame (8) also set up that there are two the axis for experiment axis installation axle box assembly (15)
Bearing installing plate.
3. a kind of axle box bearing according to claim 2 is comprehensive performance test bed, it is characterised in that：
Described 1, No. 2 counter-force gantry assembly (9,10) is bolted on testing equipment installation frame (8), the examination
It tests axis and is bolted on testing equipment installing frame with 1, No. 2 spring bearing base device (35,37) in axle box assembly (15)
On two bearing mounting plates set on frame (8), 1, No. 2 axle box assembly in experiment axis and the axle box assembly (15) (34,
38) swing arm installation end is fixed on by semicircle pressing plate on 1, No. 2 counter-force gantry assembly (9,10) respectively, the experiment axis
With the top of 1, No. 2 axle box assembly (34,38) in axle box assembly (15) respectively in 1, No. 2 counter-force gantry assembly (9,10)
Journal box spring (33) face connect；Described 1, No. 2 axle box exciting fixture (13,14) structure is identical, 1, No. 2 axle box exciting card
Tool (13,14) is fastened by bolts respectively on 1, No. 2 axle box assembly (34,38)；The directional transverse exciting actuator (16)
It is bolted on testing equipment installation frame (8) on lateral exciting actuator installation crossbeam, motor support base (18) passes through
Bolt is fixed on testing equipment installation frame (8), and the driving motor (17) is fixed on motor support base (18), driving motor
(17) it is rotatablely connected with experiment axis with axle box assembly (15) by driving belt (19), No. 1 damper (20) lower end passes through
Bolt is fixed on No. 1 axle box assembly (34), and No. 2 dampers (21) lower end is bolted on No. 2 axle box assemblies
(38) on；No. 1 damper (20) upper end is fastenedly connected by bolt and No. 1 counter-force gantry assembly (9), and described No. 2 subtract
Shake device (21) upper end is fastenedly connected by bolt and No. 2 counter-force gantry assemblies (10).
4. a kind of axle box bearing according to Claims 2 or 3 is comprehensive performance test bed, it is characterised in that：
Described 1, No. 2 lateral exciting linkage (11,12) structure is identical, including axle box connecting plate (22), lateral exciting mistake
Cab apron (23) and actuator connecting lug (24), the axle box connecting plate (22) and lateral exciting rebound (23) are tight by bolt
It is solidly connected, the transverse direction exciting rebound (23) is connect with actuator connecting lug (24) by axis pin ball-joint；
Axle box connecting plate (22) in described No. 1 lateral exciting linkage (11) passes through bolt and experiment axis and axle box assembly
(15) No. 1 axle box assembly (34) in connects, and the axle box connecting plate (22) in described No. 2 lateral exciting linkages (12) passes through
Bolt is connect with experiment axis with No. 2 axle box assemblies (38) in axle box assembly (15), described 1, No. 2 lateral exciting linkage
Actuator connecting lug (24) in (11,12) is connect respectively by axis pin with directional transverse exciting actuator (16) ball-joint.
5. a kind of axle box bearing according to Claims 2 or 3 is comprehensive performance test bed, it is characterised in that：
No. 1 counter-force gantry assembly (9) is identical with No. 2 counter-force gantry assembly (10) structures, is added by axle box static(al)
It carries and puts (25), No. 1 gantry upright post (26), gantry beam (27) and No. 2 gantry upright post (28) compositions, No. 1 gantry upright post
(26), gantry beam (27) and No. 2 gantry upright posts (28) are the weldment that steel pipe and steel plate are welded, the gantry beam
(27) it is bolted respectively with No. 1 gantry upright post (26) and No. 2 gantry upright posts (28) by connecting plate；
No. 1 gantry upright post (26) is additionally provided with installs for the swing arm on No. 1 axle box assembly (34) and No. 2 axle box assemblies (38)
Fixed trapezoidal steel plate is held, the axle box static force loading device (25) is intermediate mounted on gantry beam (27)；
The axle box static force loading device (25) is surveyed by static loading actuator (29), actuator installs rebound (30), static(al)
Force snesor (31), spring upper end gland (32) and journal box spring (33) composition, the static loading actuator (29) and start
Device installs rebound (30) is bolted to connection, the static(al) load cell (31) and static loading actuator (29)
Actuator force application rod is threadedly coupled, and the static(al) load cell (31) is fastened with spring upper end gland (32) by bolt thread
Connection, journal box spring (33) are connected with spring upper end gland (32) face.
6. a kind of axle box bearing according to Claims 2 or 3 is comprehensive performance test bed, it is characterised in that：
The experiment axis is with axle box assembly (15) by No. 1 axle box assembly (34), No. 1 spring bearing base device (35), experiment axis
Assembly (36), No. 2 spring bearing base devices (37) and No. 2 axle box assembly (38) compositions, wherein No. 1 axle box assembly (34) and No. 2
Axle box assembly (38) is using the original axle box assembly of EMU, to ensure the authenticity of test data.
7. a kind of axle box bearing according to claim 6 is comprehensive performance test bed, it is characterised in that：
The experiment axle assembly (36) is by experiment axis (39), No. 1 axle box bearing (40), No. 1 axle box oil sealing (41), No. 2 axis
Axle box bearing (42), No. 2 axle box oil sealings (43), No. 1 spring bearing oil sealing (44), No. 1 spring bearing (45), No. 2 spring bearing oil
Seal (46), driven pulley (47), No. 3 spring bearing oil sealings (48), No. 2 spring bearings (49) and No. 4 spring bearing oil sealings (50)
Composition wherein No. 1 axle box bearing (40) is identical with No. 2 axle box bearing (42) structures, is testpieces, is existed using EMU reality
With axle box bearing, No. 1 axle box oil sealing (41) is identical with No. 2 axle box oil sealing (43) structures, using EMU with axle box oil sealing.
8. a kind of axle box bearing according to claim 7 is comprehensive performance test bed, it is characterised in that：
The experiment is a multi-diameter shaft with axis (39), is sequentially installed with No. 1 axle box bearing (40), No. 1 axle box oil sealing thereon
(41), No. 1 spring bearing oil sealing (44), No. 1 spring bearing (45), No. 2 spring bearing oil sealings (46), driven pulley (47), No. 3
Spring bearing oil sealing (48), No. 2 spring bearings (49), No. 4 spring bearing oil sealings (50), No. 2 axle box oil sealings (43) and No. 2 axle boxes
Bearing (42)；
No. 1 axle box bearing (40) and No. 2 axle box bearings (42) are separately mounted to the both ends of experiment axis (39), and interior is 1
Number spring bearing (45) and No. 2 spring bearings (49), the driven pulley (47) are sequentially connected with experiment axis (39) key.
9. a kind of axle box bearing according to claim 6 is comprehensive performance test bed, it is characterised in that：
No. 1 spring bearing base device (35) is identical with No. 2 spring bearing base device (37) structures, by bearing seat supports sky
Gas spring (58), bearing block base (59), bearing block head cover (60) and temperature sensor (61) composition, the bearing seat supports are empty
Gas spring (58) top and bottom are both provided with connecting flange, and the bearing block head cover (60) passes through spiral shell with bearing block base (59)
It tethers and connects, the bearing block base (59) is connect by disk with bearing seat supports air spring (58) upper end connecting flange, institute
The top that temperature sensor (61) is bolted on bearing block head cover (60) is stated, for measuring No. 1 support during experiment
Bearing (45) and the temperature of No. 2 spring bearings (49) prevent No. 1 spring bearing (45) and No. 2 spring bearings during experiment
(49) the excessively high damage bearing of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690503.XA CN107300470B (en) | 2017-08-14 | 2017-08-14 | Axle box bearing is comprehensive performance test bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690503.XA CN107300470B (en) | 2017-08-14 | 2017-08-14 | Axle box bearing is comprehensive performance test bed |
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| CN107300470A CN107300470A (en) | 2017-10-27 |
| CN107300470B true CN107300470B (en) | 2018-06-22 |
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| CN107917816A (en) * | 2018-01-08 | 2018-04-17 | 吉林大学 | High-frequency excitation earthing or grounding means testing stand |
| EP3575768B1 (en) * | 2018-06-01 | 2021-10-20 | GF Machining Solutions AG | System and method for determining structural characteristics of a machine tool |
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| KR100606264B1 (en) * | 2004-11-19 | 2006-07-31 | 주식회사 한랩 | centrifugal apparatus of automatic balancing type by fluid compensation |
| CN103323247B (en) * | 2013-07-02 | 2015-12-16 | 吉林大学 | EMU axle box bearing Three Degree Of Freedom dynamically loads reliability test bench |
| CN203561504U (en) * | 2013-09-16 | 2014-04-23 | 洛阳Lyc轴承有限公司 | An axial loading apparatus for a high-speed railway axial comprehensive performance testing stand |
| CN103630360B (en) * | 2013-12-10 | 2015-10-28 | 吉林大学 | EMU axle box bearing gantry type counter-force frame two-dimensional excitation bracket loading test platform |
| CN105784367B (en) * | 2016-04-06 | 2018-05-11 | 吉林大学 | Rail car axle box bearings synthesis performance and axle head grounding device wear test platform |
| CN105784363B (en) * | 2016-05-30 | 2018-02-23 | 吉林大学 | Electronic activity of force closed loop gear-box electromagnetic exciting tilting testing stand |
| CN207215458U (en) * | 2017-08-14 | 2018-04-10 | 吉林大学 | Axle box bearing is comprehensive performance test bed |
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