CN105651532A - Universal test bench for high-speed train damper - Google Patents
Universal test bench for high-speed train damper Download PDFInfo
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- CN105651532A CN105651532A CN201610187804.6A CN201610187804A CN105651532A CN 105651532 A CN105651532 A CN 105651532A CN 201610187804 A CN201610187804 A CN 201610187804A CN 105651532 A CN105651532 A CN 105651532A
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- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 238000012545 processing Methods 0.000 claims description 38
- 238000009434 installation Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 abstract description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 15
- 239000000203 mixture Substances 0.000 description 10
- 241000271559 Dromaiidae Species 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 206010068052 Mosaicism Diseases 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a universal test bench for a high-speed train damper. The universal test bench for the high-speed train damper aims to solve the problems that an existing test bench of the damper is poor in performance, low in precision and high in cost. The test bench mainly comprises a mounting platform, a damper universal supporting assembling body, a vertical actuator assembling body, a bearing stand column, a transverse actuator assembling body, a damper variable angle mounting assembly and a longitudinal actuator assembling body; in the universal test bench for the high-speed train damper, the damper variable angle mounting assembly is connected with the vertical actuator assembling body, the transverse actuator assembling body and the longitudinal actuator assembling body; meanwhile, one end of the test damper is fixed, and the other end of the test damper is connected with the damper variable angle mounting assembly. The three actuators act under the control of a control system, the work state of the damper is represented truly, and meanwhile signals collected by a sensor are transferred to a detection system.
Description
Technical field
The present invention relates to a kind of rail vehicle amortisseur parameter detecting assay device.
Background technology
At present, China's EMUs technical development is rapid, has reached 350km/h in the EMUs max. speed run, and the EMUs max. speed in development is already close to 500km/h. Along with the aggravation of the raising of EMUs travel speed and vehicle axle weight load, the vibration aggravation between EMUs and track, EMUs running stability reduces, and safety and the sex chromosome mosaicism that operates steadily of EMUs become increasingly conspicuous. The maintenance of amortisseur is the important component part of overhaul of train-set, is the key ensureing EMUs safe and reliable operation.
Concussion when amortisseur rebounds after being mainly used to suppress spring shock-absorbing and the impact from ground or track, be the rapid wear accessory in train travelling process, amortisseur work quality, by the life-span of the stationarity He other part that directly affect train driving. Therefore, we should make amortisseur often in good working order.
Train suspension system adopt amortisseur to be mostly hydraulic damper, when its operation principle is to shake when between vehicle frame (or vehicle body) and vehicle bridge and relative motion occur, piston in amortisseur moves up and down, and the fluid in snubber cavity just flows into another intracavity from a chamber through different holes repeatedly. Vibrations are formed damping force by now friction between hole wall and fluid and the intermolecular internal friction of fluid, make thump energy be converted into fluid heat energy, then are dispersed in air by absorber.
At present, common amortisseur testing stand has mechanical type, computermatic and electro-hydraulic servo formula etc., mechanical damper testing stand is mainly crank connecting link and two kinds of forms of upper and lower slider-crank mechanism, but there is shortcomings, the problem such as narrower in excited frequency scope, test method not science, machinery big serious wear of inertia in high frequency simultaneously. Computermatic performance test stand can complete the detection of the model center building of variety classes amortisseur, speed characteristics and temperature characterisitic, computer control system gathers corresponding data and is shown in visual information equipment, data pass through computer disposal, and result realizes the closed loop control to equipment again through the corresponding system that controls.Electro-hydraulic servo formula testing stand can produce higher excited frequency in amortisseur performance test process, significantly improves certainty of measurement, and meanwhile, under high-speed case, noise and abrasion are also solved well. But the development of domestic correlation test platform is later, and major part is also dependent on external import of technique, amortisseur correlation test platform also in the early stage of development, so be badly in need of high-performance, in high precision, the amortisseur testing stand of low cost.
Summary of the invention
To be solved by this invention be current the problem that amortisseur test stand performance is poor, precision is low, cost is high, thus providing a kind of bullet train amortisseur universal type testing stand.
The present invention be adopt the following technical scheme that as follows: described bullet train amortisseur universal type testing stand includes mounting platform 1, amortisseur Universal support assembly 2, vertical actuator assembly 3, supporting upright post 4, horizontal actuator assembly 5, amortisseur varied angle installation assembly 6 and longitudinal actuator assembly 7;
Vertical actuator assembly 3, horizontal actuator assembly 5 have identical structure with longitudinal actuator assembly 7 three; Horizontal actuator assembly 5 therein is fixed on mounting platform 1 with longitudinal actuator assembly 7, and vertical actuator assembly 3 is fixed on supporting upright post 4 side, and the bottom surface of described supporting upright post 4 is fixing with mounting platform 1 to be connected; Vertical actuator assembly 3, horizontal actuator assembly 5 are all connected with amortisseur varied angle installation assembly 6 with one end of longitudinal actuator assembly 7 and installation direction is mutually perpendicular to; Described amortisseur varied angle installation assembly 6 is fixedly connected on amortisseur Universal support assembly 2; Amortisseur Universal support assembly 2 is fixed on mounting platform 1.
Described amortisseur Universal support assembly 2 is connected and composed by universal supporting assembly 8 and test amortisseur 9. Described universal supporting assembly 8 includes universal bearing assembly 10, universal support movable seat 11, six-component sensor 12, connecting plate 13, angle adjustment plate I 14, hubcap I 15, angle adjustment plate II 16, hubcap II 17, angle adjustment pressure strip I 18 and angle adjustment pressure strip II 19. Angle adjustment plate I 14 is identical with angle adjustment plate II 16 structure, and hubcap I 15 is identical with hubcap II 17 structure, and angle adjustment pressure strip I 18 is identical with angle adjustment pressure strip II 19 structure.
Described angle adjustment plate I 14 is marked with scale value with angle adjustment plate II 16 along circular arc strip hole, when universal support movable seat 11 turns over certain angle, angle adjustment plate I 14 and angle adjustment plate II 16 turn over equal angular therewith, and the tuning drive gear show value of angle adjustment pressure strip I 18 and angle adjustment pressure strip II 19 is exactly the angle value turned over. .
Described universal bearing assembly 10 includes universal supporting seat bottom seat 20, universal bearing footstock I 21 and universal bearing footstock II 22; The processing of top, universal supporting seat bottom seat 20 left and right sides has half-round cross hole, and the axis of rotation of two semicircle orifices overlaps; Universal bearing footstock I 21 is identical with universal bearing footstock II 22 structure; Universal bearing footstock I 21 is separately mounted to the top of universal supporting seat bottom seat 20 left and right sides with universal bearing footstock II 22, and the axis of rotation of the semicircle orifice of universal bearing footstock I 21 and universal bearing footstock II 22 overlaps with the axis of rotation of the semicircle orifice of universal supporting seat bottom seat 20 both sides composition installing hole I 23 and installing hole II 24 respectively; Universal supporting seat bottom seat 20 is arranged on mounting platform 1.
Described universal support movable seat 11 is that two ends processing has identical two-part multidiameter; The front of and behind center processing of universal support movable seat 11 has round boss, on boss circumference, processing has two through holes, it is used for linking together universal support movable seat 11 and six-component sensor 12, arranging the shaft shoulder I 26 on the multidiameter of one end, the shaft shoulder I 26 left and right sides is respectively provided with axle I 27 and angle adjustment board shaft I 25; The multidiameter of the other end arranges the shaft shoulder II 30; The shaft shoulder II 30 left and right sides is respectively provided with angle adjustment board shaft II 31 and axle II 29, and angle adjustment board shaft I 25 and angle adjustment board shaft II 31 are rectangular shaft.
Axle I 27 and the axle II 29 of universal support movable seat 11 is separately mounted to installing hole I 23 with in installing hole II 24, and described universal support movable seat 11 and universal bearing assembly 10 are rotationally connected; Universal support movable seat 11 and six-component sensor 12 connect; Six-component sensor 12 and connecting plate 13 connect. Angle adjustment plate I 14 is sleeved in angle adjustment board shaft I 25, and angle adjustment plate I 14 is positioned with hubcap I 15 by the shaft shoulder I 26 on axle I 27; Angle adjustment plate II 16 is sleeved in angle adjustment board shaft II 31, and angle adjustment plate II 16 is positioned by axle II 29 shaft shoulder II 30 and hubcap II 17; Hubcap I 15 and hubcap II 17 are separately mounted on the both sides multidiameter end face of universal support movable seat 11; Angle adjustment pressure strip I 18 is fixed on angle adjustment plate I 14, and angle adjustment pressure strip II 19 is fixed on angle adjustment plate II 16.
Described supporting upright post 4 is casing class formation; Described vertical actuator assembly 3, horizontal actuator assembly 5 and longitudinal actuator assembly 7 all include guide rail hinge seat and connecting rod assembly 32, base plate assembly 33 and actuator 34.
Wherein, described base plate assembly 33 includes mounting base 45 and multiple actuator joint angle (actuator joint angle I 46, actuator joint angle II 47, actuator joint angle III 48 and actuator joint angle IV 49); Described actuator 34 is fixed on mounting base 45 by actuator joint angle.
Described guide rail hinge seat and connecting rod assembly 32 include connecting rod 35, guide rail 36, guide rail slide block 37, hinge seat assembly 38 and cross axle 40. Described hinge seat assembly 38 is connected and composed by guide rail slide block 37 and hinge seat 39; Guide rail slide block 37 is sleeved on guide rail 36 and can slide on the slideway of guide rail 36; Guide rail 36 is fixedly mounted on mounting base 45.
Hinge seat 39 is the rectangle hollow structure that left and right sides processing has manhole, the rear end face of hinge seat 39 fixes a rectangular slab, rectangular slab has manhole along centerline direction processing, and the manhole axis of rotation of the left and right sides overlaps, and fixes with guide rail slide block 37 and be connected bottom it; Cross axle 40, described cross axle 40 and hinge seat 39 chain connection are installed in hinge seat 39, can rotate at the manhole axis of rotation around hinge seat 39 left and right sides.
Described connecting rod 35 one end and amortisseur varied angle installation assembly 6 Flange joint, the other end and cross axle 40 chain connection in hinge seat 39; Described guide rail hinge seat is fixed be connected with the hinge seat 39 in connecting rod assembly 32 and actuator 34, and the axis of rotation of actuator 34 is positioned at connecting rod 35 and rotates the plane formed.
Described amortisseur varied angle installation assembly 6 includes rocking arm framework 50, mounting seat 51, connection rod sphere flange I 52, connection rod sphere I 53, ball pivot lid I 54, connection rod sphere flange II 55, connection rod sphere II 56 and ball pivot lid II 57;
Wherein, connection rod sphere I 53 is identical with connection rod sphere II 56 structure, and ball pivot lid I 54 is identical with ball pivot lid II 57 structure.
Described rocking arm framework about 50 both sides are provided with arc-shaped slot pass hole, mounting seat 51 and rocking arm framework 50 are linked together by the arc-shaped slot of rocking arm framework 50, and mounting seat 51 can rotate within the scope of arc-shaped slot; The bottom centre position of rocking arm framework 50 has a through hole, and the processing of mounting seat 51 top center has through hole, and mounting seat 51 and rocking arm framework 50 are linked together by bolt by the bottom centre position through hole of mounting seat 51 top center through hole, rocking arm framework 50; The Left-side center of rocking arm framework 50 in axial direction has the round boss of the connecting rod 35 and rocking arm framework 50 for connecting longitudinal actuator assembly 7; One round boss is separately arranged at the top of rocking arm framework 50, boss arranged above with a hemispherical dimples, the rounded portion of connection rod sphere I 53 and hemispherical dimples close contact, and be closely fitted on the round boss of rocking arm framework 50 by ball pivot lid I 54, make connection rod sphere I 53 freely rotatable in the hemispherical dimples of rocking arm framework 50; The rear side processing of mounting seat 51 has a round boss, boss has a hemispherical dimples, the rounded portion of connection rod sphere II 56 and hemispherical dimples close contact, and be closely fitted on the round boss of mounting seat 51 by ball pivot lid II 57, make connection rod sphere II 56 freely rotatable in the hemispherical dimples of mounting seat 51;
The processing of described mounting seat 51 front has two rectangular channels being arranged symmetrically with, and rectangular channel housing and the anti-amortisseur that crawls testing amortisseur 9 link together, and the rounded portion of the anti-amortisseur that crawls just embeds in rectangular channel.
Connection rod sphere flange I 52 is identical with connection rod sphere flange II 55 structure, and the afterbody of connection rod sphere flange I 52 and connection rod sphere I 53 is fixing to be connected, and the flange of connection rod sphere flange I 52 is connected with vertical actuator assembly 3; The afterbody of connection rod sphere flange II 55 and connection rod sphere II 56 is fixing to be connected, and the flange of connection rod sphere flange II 55 is connected with horizontal actuator assembly 5.
Beneficial effects of the present invention:
1. bullet train amortisseur universal type testing stand of the present invention, amortisseur is laterally disposed, and one end is fixed, but can around fixing end central rotation, the other end is connected by amortisseur varied angle installation assembly and three actuator, the kinestate of this connected mode true reappearance amortisseur.
2. the parts that mainly comprise of bullet train amortisseur universal type testing stand of the present invention are connected on the surface of mounting platform or support post by T-bolt, facilitate installation and the unloading of parts. If a certain parts break down, in that context it may be convenient to maintenance or replacing, substantially increase test efficiency.
3. the universal support movable seat of bullet train amortisseur universal type testing stand of the present invention is when turning over certain angle around own axes, the tuning drive gear show value of angle adjustment pressure strip I and angle adjustment pressure strip II is exactly the angle value turned over, the angle that namely amortisseur turns over; Meanwhile, such machinery can ensure that the proper motion of amortisseur avoids movement interference.
Accompanying drawing explanation
Fig. 1 is the axonometric projection graph of bullet train amortisseur universal type test platform structure of the present invention composition;
Fig. 2 is the axonometric projection graph of the cast iron mounting platform in bullet train amortisseur universal type testing stand of the present invention;
Fig. 3 is the axonometric projection graph of the amortisseur Universal support assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Fig. 4 is the axonometric projection graph of the universal supporting assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Fig. 5 is the full sectional view on the universal supporting assembly front view in bullet train amortisseur universal type testing stand of the present invention;
Fig. 6 is the axonometric projection graph of universal bearing assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Fig. 7 is the axonometric projection graph of the universal support movable seat in bullet train amortisseur universal type testing stand of the present invention;
Fig. 8 is the axonometric projection graph of the connecting plate in bullet train amortisseur universal type testing stand of the present invention;
Fig. 9 is the axonometric projection graph of the supporting upright post in bullet train amortisseur universal type testing stand of the present invention;
Figure 10 is the axonometric projection graph of the horizontal actuator assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Figure 11 is the axonometric projection graph of the guide rail hinge seat in bullet train amortisseur universal type testing stand of the present invention and connecting rod assembly structure composition;
Figure 12 is the axonometric projection graph of the hinge seat assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Figure 13 is the axonometric projection graph of the cross axle in bullet train amortisseur universal type testing stand of the present invention;
Figure 14 is the axonometric projection graph of the connecting rod in bullet train amortisseur universal type testing stand of the present invention;
Figure 15 is the axonometric projection graph of the base plate assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Figure 16 is the axonometric projection graph of the actuator joint angle I in bullet train amortisseur universal type testing stand of the present invention;
Figure 17 is the axonometric projection graph of the amortisseur varied angle installation assembly structure composition in bullet train amortisseur universal type testing stand of the present invention;
Figure 18 is the full sectional view on the amortisseur varied angle installation assembly front view in bullet train amortisseur universal type testing stand of the present invention;
Figure 19 is the axonometric projection graph of the rocking arm framework in bullet train amortisseur universal type testing stand of the present invention;
Figure 20 is the axonometric projection graph of the mounting seat in bullet train amortisseur universal type testing stand of the present invention;
Figure 21 is the axonometric projection graph of the connection rod sphere flange I in bullet train amortisseur universal type testing stand of the present invention;
In the figures above, used accompanying drawing labelling is as follows: 1. cast iron mounting platform, 2. amortisseur Universal support assembly, 3. vertical actuator assembly, 4. supporting upright post, 5. horizontal actuator assembly, 6. amortisseur varied angle installation assembly, 7. longitudinal actuator assembly, 8. universal supporting assembly, 9. test amortisseur, 10. universal bearing assembly, 11. universal support movable seat, 12. six-component sensor, 13. connecting plate, 14. angle adjustment plate I, 15. hubcap I, 16. angle adjustment plate II, 17. hubcap II, 18. angle adjustment pressure strip I, 19. angle adjustment pressure strip II, 20. universal supporting seat bottom seat, 21. universal bearing footstock I, 22. universal bearing footstock II 23. installing hole I, 24. installing hole II, 25. angle adjustment board shaft I, 26. the shaft shoulder I, 27. axle I, 28. work surface I, 29. axle II, 30. the shaft shoulder II, 31. angle adjustment board shaft II, 32. guide rail hinge seat and connecting rod assembly, 33. base plate assembly, 34. actuator, 35. connecting rod, 36. guide rail, 37. guide rail slide block, 38. hinge seat assembly, 39. hinge seat, 40. cross axle, 41. axle III, 42. axle IV, 43. axle V, 44. axle VI, 45. mounting base, 46. actuator joint angle I, 47. actuator joint angle II, 48. actuator joint angle III, 49. actuator joint angle IV, 50. rocking arm framework, 51. mounting seat, 52. connection rod sphere flange I, 53. connection rod sphere I, 54. ball pivot lid I, 55. connection rod sphere flange II, 56. connection rod sphere II, 57. ball pivot lid II, 58. work surface I, 59. work surface II, 60. work surface III.
Detailed description of the invention
With the form of specific embodiment technical solution of the present invention it is further explained below in conjunction with Figure of description and illustrates.
Consulting Fig. 1 to Fig. 2, bullet train amortisseur universal type testing stand includes cast iron mounting platform 1, amortisseur Universal support assembly 2, vertical actuator assembly 3, supporting upright post 4, horizontal actuator assembly 5, amortisseur varied angle installation assembly 6 and longitudinal actuator assembly 7; Vertical actuator assembly 3, horizontal actuator assembly 5 are identical with longitudinal actuator assembly 7 structure.
Amortisseur Universal support assembly 2, supporting upright post 4, horizontal actuator assembly 5 and longitudinal actuator assembly 7 are fixedly mounted on the upper work surface of cast iron mounting platform 1 by T-bolt, it is possible to the concrete installation site of needs adjustment according to test. Described amortisseur Universal support assembly 2 is arranged on cast iron mounting platform 1 left side of work surface, supporting upright post 4 is arranged on cast iron mounting platform 1 rear side of work surface, vertical actuator assembly 3 is arranged on the rear side of the upper work surface of supporting upright post 4, longitudinal actuator assembly 7 is arranged on cast iron mounting platform 1 front end of work surface, and horizontal actuator assembly 5 is arranged on supporting upright post 4 leading face by T-bolt; The test amortisseur 9 of amortisseur Universal support assembly 2 is bolted in the mounting seat 51 being arranged on amortisseur varied angle installation assembly 6, the connecting rod of vertical actuator assembly 3 and connection rod sphere flange I 52 bolt of amortisseur varied angle installation assembly 6 connect, the configured left boss bolt of the connecting rod of longitudinal actuator assembly 7 and the rocking arm framework 50 of amortisseur varied angle installation assembly 6 connects, and the connecting rod of horizontal actuator assembly 5 and connection rod sphere flange II 55 bolt of amortisseur varied angle installation assembly 6 connect.
Described cast iron mounting platform 1 is to be spliced by the rectangle cast iron platform that three pieces of length, width and height are 2.5 meters * 1.3 meters * 0.3 meter, the upper surface of each piece of rectangle cast iron platform has some the T-slot being parallel to each other along the distribution of long limit, make a multiduty mounting platform, cast iron mounting platform 1 is as the basis of bullet train amortisseur universal type testing stand, other all parts of bullet train amortisseur universal type testing stand are all fixed on the upper surface of cast iron mounting platform 1 by T bolt and T-slot, and can according to the position needing adjustment mutual tested, cast iron mounting platform 1 is fixed on ground by foundation bolt, firm basis is provided for bullet train amortisseur universal type testing stand.
Consulting Fig. 3 to Fig. 8, described amortisseur Universal support assembly 2 includes universal supporting assembly 8 and test amortisseur 9.
Described universal supporting assembly 8 includes universal bearing assembly 10, universal support movable seat 11, six-component sensor 12, connecting plate 13, angle adjustment plate I 14, hubcap I 15, angle adjustment plate II 16, hubcap II 17, angle adjustment pressure strip I 18 and angle adjustment pressure strip II 19; Wherein, angle adjustment plate I 14 is identical with angle adjustment plate II 16 structure, and hubcap I 15 is identical with hubcap II 17 structure, and angle adjustment pressure strip I 18 is identical with angle adjustment pressure strip II 19 structure.
Universal support movable seat 11 and universal bearing assembly 10 are rotationally connected, and axle I 27 and the axle II 29 of universal support movable seat 11 is separately mounted in installing hole I 23 and the installing hole II 24 at universal bearing assembly 10 two ends;Universal support movable seat 11 and six-component sensor 12 bolt connect; Six-component sensor 12 and connecting plate 13 bolt connect. Angle adjustment plate I 14 is sleeved in angle adjustment board shaft I 25, and hubcap I 15 is bolted on the right side being arranged on universal support movable seat 11, and angle adjustment plate I 14 is positioned by the shaft shoulder I 26 and hubcap I 15; Angle adjustment plate II 16 is sleeved in angle adjustment board shaft II 31, and hubcap II 17 is bolted on the left side being arranged on universal support movable seat 11, and angle adjustment plate II 16 is positioned by the shaft shoulder II 30 and hubcap II 17; The bolt being connected with angle adjustment pressure strip I 18 is fixed on universal bearing assembly 10 right side through the circular arc strip hole of angle adjustment plate II 16, the bolt being connected with angle adjustment pressure strip II 19 is fixed on universal bearing assembly 10 left side through the circular arc strip hole of angle adjustment plate II 16, angle adjustment pressure strip I 18 and angle adjustment pressure strip II 19 are in symmetric position, and the tuning drive gear of the two is straight up.
Described angle adjustment plate I 14 is marked with scale value with angle adjustment plate II 16 along circular arc strip hole, when universal support movable seat 11 turns over certain angle, angle adjustment plate I 14 and angle adjustment plate II 16 turn over equal angular therewith, and the tuning drive gear show value of angle adjustment pressure strip I 18 and angle adjustment pressure strip II 19 is exactly the angle value turned over.
The axis of rotation of axle I 27 overlaps with installing hole I 23 axis of rotation, and the axis of rotation of axle II 29 overlaps with installing hole II 24 axis of rotation; Connecting plate 13 bolt of anti-crawl amortisseur and the universal supporting assembly 8 of test amortisseur 9 side connects, and the rounded portion of the anti-amortisseur that crawls of test amortisseur 9 side just embeds in rectangular channel; The universal supporting seat bottom seat 20 of universal supporting assembly 8 is arranged on cast iron mounting platform 1 left side of working surface by T-bolt.
Described universal bearing assembly 10 includes universal supporting seat bottom seat 20, universal bearing footstock I 21 and universal bearing footstock II 22; Universal bearing footstock I 21 is identical with universal bearing footstock II 22 structure.
Universal supporting seat bottom seat 20 is the structural member that the processing of top, the left and right sides has half-round cross hole, and the axis of rotation of two semicircle orifices overlaps, and has two screwed holes on top, the left and right sides along the direction processing being perpendicular to half-round cross hole axis of rotation, is distributed in half-round cross hole both sides; Universal bearing footstock I 21 is bolted, with universal bearing footstock II 22, the top being separately mounted to universal supporting seat bottom seat 20 left and right sides, the axis of rotation of the semicircle orifice of universal bearing footstock I 21 overlaps with the axis of rotation of the semicircle orifice on the left of universal supporting seat bottom seat 20, and the axis of rotation of the semicircle orifice of universal bearing footstock II 22 overlaps with the axis of rotation of the semicircle orifice on the right side of universal supporting seat bottom seat 20.
Described universal support movable seat 11 is the structural member that two ends processing has identical two-part multidiameter; The main part of universal support movable seat 11 is cuboid, at cuboid front of and behind center, processing has round boss, on boss circumference, processing has two rectangular through-hole, and the two line is parallel to long limit, it is used for inserting bolt universal support movable seat 11 and six-component sensor 12 to be linked together, there are 4 manholes along the processing of boss circumference, are used for inserting bolt and connecting plate 13, universal support movable seat 11 and six-component sensor 12 are linked together.On the multidiameter end face of universal support movable seat 11 left and right sides, processing has 4 screwed holes, the multidiameter on right side arranges the shaft shoulder I 26,1 shaft shoulder, the shaft shoulder left and right sides is respectively provided with axle I 27 and angle adjustment board shaft I 25, and angle adjustment board shaft I 25 is rectangular shaft; Arranging the shaft shoulder II 30 on the multidiameter in left side, 1 shaft shoulder, the shaft shoulder left and right sides is respectively provided with angle adjustment board shaft II 31 and axle II 29, and angle adjustment board shaft II 31 is rectangular shaft.
Consulting Fig. 9, described supporting upright post 4 is case body structural member, top board, base plate and four pieces of risers are welded; Top board and base plate are parallel to each other, two pieces, left and right and front vertical plate vertical welding are in top board and base plate, and two pieces, left and right riser be parallel to each other back vertical plate be welded on the two pieces of risers in left and right, between top board and base plate, at the gusset being parallel to left vertical version that supporting upright post 4 interior welds is evenly arranged, also being welded with the gusset being parallel to top board between these gussets, these gussets can strengthen part bulk strength; The two pieces of risers in left and right are right-angled trapezium shapes, and on front vertical plate, there are some the T-slot being parallel to each other on top along the distribution of long limit, makes a multiduty mounting platform, and other parts can be arranged on leading face by T-bolt; It is welded with hanger at top board central upper portion place, facilitates transport and the installation of part; A left side is found version, is welded with a number of gusset between right riser and back vertical plate and base plate, is used for strengthening part bulk strength, processes grooved through hole between the gusset of base plate, is used for inserting T-bolt and supporting upright post 4 is arranged on work surface on cast iron mounting platform 1.
Consulting Figure 10 to Figure 14, described horizontal actuator assembly 5 includes guide rail hinge seat and connecting rod assembly 32, base plate assembly 33 and actuator 34.
Described guide rail hinge seat and connecting rod assembly 32 include connecting rod 35, guide rail 36, guide rail slide block 37 and hinge seat assembly 38.
Guide rail slide block 37 is sleeved on guide rail 36, and relies on the guide track roller within guide rail slide block 37 to slide on the slideway of guide rail 36; Hinge seat 39 is the rectangle hollow structural member that left and right sides processing has manhole, the rear end face of hinge seat 39 welds a rectangular slab, rectangular slab has manhole along centerline direction processing, the manhole axis of rotation of the left and right sides overlaps, process 4 tapped through holes at bottom even, be used for inserting bolt and itself and guide rail slide block 37 are linked together; Hinge seat 39 and guide rail slide block 37 are bolted.
Cross axle 40 up and down 4 center processing have 4 sections of circular shafts, respectively axle VI 44, axle IV 42, axle III 41 and axle V 43, and each axis is perpendicular to its face, place, the axis of rotation of axle VI 44 overlaps with axle IV 42 axis of rotation, and the axis of rotation of axle III 41 overlaps with axle V 43 axis of rotation; Cross axle 40 and hinge seat 39 are rotationally connected, and axle III 41 and the axle V 43 of cross axle 40 are arranged in the manhole of hinge seat 39 left and right sides, and axis of rotation overlaps, it is ensured that cross axle 40 can rotate by the manhole axis of rotation around hinge seat 39 left and right sides.
Connecting rod 35 is mid portion is the structural member of circular hollow tube, circular slab is welded on the left side of circular hollow tube by the mode welded, circular slab is circumferentially uniformly distributed 8 manholes, it is used for inserting bolt connecting rod 35 and amortisseur varied angle installation assembly 6 to be linked together, the right side of circular hollow tube is welded a part having 2 manholes, and 2 manhole axiss of rotation overlap;58. work surface I 58 and work surface II 59 are parallel to each other. Connecting rod 35 and cross axle 40 are rotationally connected, and axle VI 44 and the axle IV 42 of cross axle 40 inserts in 2 manholes of connecting rod 35 right-hand member respectively, and in cross axle 40 rotation process, drivening rod 35 moves.
Hinge seat 39 and the actuator 34 of guide rail hinge seat and connecting rod assembly 32 are bolted, and the axis of rotation of actuator 34 is positioned at connecting rod 35 and rotates the plane formed.
Consulting Figure 15 to Figure 16, described base plate assembly 33 includes mounting base 45, actuator joint angle I 46, actuator joint angle II 47, actuator joint angle III 48 and actuator joint angle IV 49; Wherein, actuator joint angle I 46, actuator joint angle II 47, actuator joint angle III 48 are identical with actuator joint angle IV 49 structure.
Mounting base 45 is a rectangular slab, is uniformly distributed grooved through hole along two long limits, and the major axis in first grooved hole is perpendicular to long limit, and adjacent two grooved hole major axis are mutually perpendicular to. Actuator joint angle I 46, actuator joint angle II 47, actuator joint angle III 48 are connected with actuator joint angle IV 49 and mounting base 45 bolt.
Actuator joint angle I 46 and actuator joint angle IV 49 are symmetrically mounted on mounting base 45 right-hand member, and actuator joint angle II 47 and actuator joint angle III 48 are symmetrically mounted on mounting base 45 left end; The work surface III 60 of actuator joint angle I 46 and the work surface III 60 place planes overlapping of actuator joint angle II 47, No. 3 work surface place planes overlapping of No. 3 work surfaces of actuator joint angle III 48 and actuator joint angle IV 49.
The work surface III 60 of actuator joint angle I 46 is connected with the housing bolts of the work surface III 60 of actuator joint angle IV 49 and actuator 34, and the work surface III 60 of actuator joint angle II 47 is connected with the housing bolts of the work surface III 60 of actuator joint angle III 48 and actuator 34.
Consult Figure 17 to Figure 20, described amortisseur varied angle installation assembly 6 includes rocking arm framework 50, mounting seat 51, connection rod sphere flange I 52, connection rod sphere I 53, ball pivot lid I 54, connection rod sphere flange II 55, connection rod sphere II 56 and ball pivot lid II 57, wherein, connection rod sphere flange I 52 is identical with connection rod sphere flange II 55 structure, connection rod sphere I 53 is identical with connection rod sphere II 56 structure, and ball pivot lid I 54 is identical with ball pivot lid II 57 structure.
Described rocking arm framework 50 is the structural member that the processing of upper and lower both sides has arc-shaped slot pass hole; the lower center position processing of rocking arm framework 50 has a through hole; the Left-side center of rocking arm framework 50 has in axial direction processed a round boss; the axial direction along boss uniformly processes 8 screwed holes on boss, is used for inserting bolt and connects connecting rod 35 and the rocking arm framework 50 of longitudinal actuator assembly 7; The top processing of rocking arm framework 50 has a round boss, boss arranged above with a hemispherical dimples, and above round boss, outside hemispherical dimples, there are 8 screwed holes along the processing of boss axial direction, are used for inserting bolt connecting rocker arm framework 50 and ball pivot lid I 54.
Described mounting seat 51 is the structural member that front processing has two rectangular channels being arranged symmetrically with, the upper and lower of rectangular channel respectively processes a screwed hole, being used for inserting bolt and test amortisseur 9 anti-crawled amortisseur and mounting seat 51 links together, the rounded portion of the anti-amortisseur that crawls just embeds in rectangular channel; The processing of mounting seat 51 top center has through hole, is used for inserting stay bolt and mounting seat 51 and rocking arm framework 50 is linked together;Two screwed holes are had above mounting seat 51 and near the processing of left and right sides end face, two screwed holes are had below mounting seat 51 and near the processing of left and right sides end face, mounting seat 51 and rocking arm framework 50 are linked together by bolt by the arc-shaped slot of rocking arm framework 50, when mounting seat 51 rotates, bolt can slide in arc-shaped slot; The rear side processing of mounting seat 51 has a round boss, boss arranged above with a hemispherical dimples, and have 8 screwed holes along the processing of boss axial direction above round boss, outside hemispherical dimples, be used for inserting bolt and connect mounting seat 51 and ball pivot lid II 57.
Rocking arm framework 50 and mounting seat 51 bolt are fixing to be connected, owing to the stay bolt in mounting seat 51 centre maintains static but the bolt of both sides can slide in arc-shaped slot up and down, so mounting seat 51 can rotate in allowed limits around stay bolt; The hemispherical dimples of the rounded portion of connection rod sphere I 53 and rocking arm framework 50 is in close contact, and it is bolted the round boss upper end that ball pivot lid I 54 is closely fitted in rocking arm framework 50, make connection rod sphere I 53 freely rotatable in the hemispherical dimples of rocking arm framework 50; The hemispherical dimples of the rounded portion of connection rod sphere II 56 and mounting seat 51 is in close contact, and it is bolted the round boss upper end that ball pivot lid II 57 is closely fitted in mounting seat 51, make connection rod sphere II 56 freely rotatable in the hemispherical dimples of mounting seat 51;
Connection rod sphere flange I 52 is the screwed structural member of endoporus, and circular flange is circumferentially uniformly distributed 8 tapped through holes, and the tailing screw flight of connection rod sphere flange I 52 and connection rod sphere I 53 connects, and the opening portion bolt of connection rod sphere flange I 52 connects; The tailing screw flight of connection rod sphere flange II 55 and connection rod sphere II 56 connects, and the opening portion bolt of connection rod sphere flange II 55 connects.
The connecting-rod bolts of the configured left boss of the rocking arm framework 50 of amortisseur varied angle installation assembly 6 and longitudinal actuator assembly 7 connect, the connection rod sphere flange I 52 of amortisseur varied angle installation assembly 6 and the connecting-rod bolts of vertical actuator assembly 3 connect, and the connection rod sphere flange II 55 of amortisseur varied angle installation assembly 6 and connecting rod 35 bolt of horizontal actuator assembly 5 connect.
Bullet train amortisseur universal type testing stand operation principle:
Amortisseur varied angle installation assembly 6 in bullet train amortisseur universal type testing stand connects vertical actuator assembly 3, horizontal actuator assembly 5 and longitudinal 7 three actuator of actuator assembly, simultaneously, one end of test amortisseur 9 is fixed, and the other end and amortisseur varied angle installation assembly 6 link together. Three actuator actions under control of the control system, the duty of true reappearance amortisseur. Meanwhile, the signal of the sensor acquisition such as the displacement transducer of corresponding site, force transducer passes to detection system. These information will provide basic data for the type selecting of amortisseur, maintenance etc.
Claims (10)
1. a bullet train amortisseur universal type testing stand, it is characterized in that, this testing stand includes mounting platform (1), amortisseur Universal support assembly (2), vertical actuator assembly (3), supporting upright post (4), horizontal actuator assembly (5), amortisseur varied angle installation assembly (6) and longitudinal actuator assembly (7);
Wherein, described supporting upright post (4) is body structure; Vertical actuator assembly (3), horizontal actuator assembly (5) have identical structure with longitudinal actuator assembly (7) three;Horizontal actuator assembly (5) therein is fixed on mounting platform (1) with longitudinal actuator assembly (7), vertical actuator assembly (3) is fixed on supporting upright post (4) side, and the bottom surface of described supporting upright post (4) is fixing with mounting platform (1) to be connected; Vertical actuator assembly (3), horizontal actuator assembly (5) are all connected with amortisseur varied angle installation assembly (6) with one end of longitudinal actuator assembly (7) and installation direction is mutually perpendicular to; Described amortisseur varied angle installation assembly (6) is fixedly connected on amortisseur Universal support assembly (2); Amortisseur Universal support assembly (2) is fixed on mounting platform (1).
2. bullet train amortisseur universal type testing stand according to claim 1, it is characterised in that described amortisseur Universal support assembly (2) is connected and composed by universal supporting assembly (8) and test amortisseur (9).
3. bullet train amortisseur universal type testing stand according to claim 2, it is characterized in that, described universal supporting assembly (8) includes universal bearing assembly (10), universal support movable seat (11), six-component sensor (12), connecting plate (13), angle adjustment plate I (14), hubcap I (15), angle adjustment plate II (16), hubcap II (17), angle adjustment pressure strip I (18) and angle adjustment pressure strip II (19); Wherein, angle adjustment plate I (14) is identical with angle adjustment plate II (16) structure, hubcap I (15) is identical with hubcap II (17) structure, and angle adjustment pressure strip I (18) is identical with angle adjustment pressure strip II (19) structure; Described universal support movable seat (11) and universal bearing assembly (10) are rotationally connected; Universal support movable seat (11) and six-component sensor (12) connect; Six-component sensor (12) and connecting plate (13) connect;
Described universal support movable seat (11) is that two ends processing has identical two-part multidiameter; The front of and behind center processing of universal support movable seat (11) has round boss, on boss circumference, processing has two through holes, it is used for linking together universal support movable seat (11) and six-component sensor (12), arranging the shaft shoulder I (26) on the multidiameter of one end, the shaft shoulder I (26) left and right sides is respectively provided with axle I (27) and angle adjustment board shaft I (25); The multidiameter of the other end arranges the shaft shoulder II (30); The shaft shoulder II (30) left and right sides is respectively provided with angle adjustment board shaft II (31) and axle III (29), and angle adjustment board shaft I (25) and angle adjustment board shaft II (31) are rectangular shaft; Axle I (27) and the axle II (29) of universal support movable seat (11) is separately mounted in installing hole I (23) and installing hole II (24), angle adjustment plate I (14) is sleeved in angle adjustment board shaft I (25), and angle adjustment plate I (14) is positioned with hubcap I (15) by the shaft shoulder I (26) on axle I (27); Angle adjustment plate II (16) is sleeved in angle adjustment board shaft II (31), and angle adjustment plate II (16) is positioned by axle III (29) shaft shoulder II (30) and hubcap II (17); Hubcap I (15) and hubcap II (17) are separately mounted on the both sides multidiameter end face of universal support movable seat (11); Angle adjustment pressure strip I (18) is fixed on angle adjustment plate I (14), and angle adjustment pressure strip II (19) is fixed on angle adjustment plate II (16).
4. bullet train amortisseur universal type testing stand according to claim 2, it is characterized in that, described universal bearing assembly (10) includes universal supporting seat bottom seat (20), universal bearing footstock I (21) and universal bearing footstock II (22);The processing of universal supporting seat bottom seat (20) top, the left and right sides has half-round cross hole, and the axis of rotation of two semicircle orifices overlaps; Universal bearing footstock I (21) is identical with universal bearing footstock II (22) structure; Universal bearing footstock I (21) is separately mounted to the top of universal supporting seat bottom seat (20) left and right sides with universal bearing footstock II (22), and the axis of rotation of the semicircle orifice of universal bearing footstock I (21) and universal bearing footstock II (22) overlaps with the axis of rotation of the semicircle orifice of universal supporting seat bottom seat (20) both sides respectively and constitutes installing hole I (23) and installing hole II (24); Universal supporting seat bottom seat (20) is arranged on mounting platform (1).
5. bullet train amortisseur universal type testing stand according to claim 1, it is characterized in that, described vertical actuator assembly (3), horizontal actuator assembly (5) all include guide rail hinge seat and connecting rod assembly (32), base plate assembly (33) and actuator (34) with longitudinal actuator assembly (7); Guide rail hinge seat is fixing with connecting rod assembly (32) and actuator (34) to be connected, and is both secured on base plate assembly (33).
6. bullet train amortisseur universal type testing stand according to claim 5, it is characterised in that described base plate assembly (33) includes mounting base (45) and multiple actuator joint angle (46,47,48 and 49); Described actuator (34) is fixed on mounting base (45) by actuator joint angle.
7. bullet train amortisseur universal type testing stand according to claim 6, it is characterized in that, described guide rail hinge seat and connecting rod assembly (32) include connecting rod (35), guide rail (36), guide rail slide block (37), hinge seat assembly (38) and cross axle (40); Described hinge seat assembly (38) is connected and composed by guide rail slide block (37) and hinge seat (39); Guide rail slide block (37) is sleeved on guide rail (36) and above and can slide on the slideway of guide rail (36); Guide rail (36) is fixedly mounted on mounting base (45).
8. bullet train amortisseur universal type testing stand according to claim 7, it is characterized in that, hinge seat (39) is the rectangle hollow structure that left and right sides processing has manhole, the rear end face of hinge seat (39) fixes a rectangular slab, rectangular slab has manhole along centerline direction processing, the manhole axis of rotation of the left and right sides overlaps, and fixes with guide rail slide block (37) and be connected bottom it; Cross axle (40), described cross axle (40) and hinge seat (39) chain connection are installed in hinge seat (39), can rotate at the manhole axis of rotation around hinge seat (39) left and right sides.
9. bullet train amortisseur universal type testing stand according to claim 8, it is characterized in that, described connecting rod (35) one end and amortisseur varied angle installation assembly (6) Flange joint, the other end and cross axle (40) chain connection in hinge seat (39); Described guide rail hinge seat is fixing with the hinge seat (39) in connecting rod assembly (32) and actuator (34) to be connected, and the axis of rotation of actuator (34) is positioned at connecting rod (35) and rotates the plane formed.
10. bullet train amortisseur universal type testing stand according to claim 1, it is characterized in that, described amortisseur varied angle installation assembly (6) includes rocking arm framework (50), mounting seat (51), connection rod sphere flange I (52), connection rod sphere I (53), ball pivot lid I (54), connection rod sphere flange II (55), connection rod sphere II (56) and ball pivot lid II (57);
Wherein, connection rod sphere I (53) is identical with connection rod sphere II (56) structure, and ball pivot lid I (54) is identical with ball pivot lid II (57) structure;
Described rocking arm framework (50) is provided with arc-shaped slot pass hole in both sides up and down, mounting seat (51) and rocking arm framework (50) being linked together by the arc-shaped slot of rocking arm framework (50), mounting seat (51) can rotate within the scope of arc-shaped slot; The bottom centre position of rocking arm framework (50) has a through hole, the processing of mounting seat (51) top center has through hole, and mounting seat (51) and rocking arm framework (50) are linked together by bolt by the bottom centre position through hole of mounting seat (51) top center through hole, rocking arm framework (50); The Left-side center of rocking arm framework (50) in axial direction has the round boss of the connecting rod (35) and rocking arm framework (50) for connecting longitudinal actuator assembly (7); One round boss is separately arranged at the top of rocking arm framework (50), boss arranged above with a hemispherical dimples, the rounded portion of connection rod sphere I (53) and hemispherical dimples close contact, and be closely fitted on the round boss of rocking arm framework (50) by ball pivot lid I (54), make connection rod sphere I (53) freely rotatable in the hemispherical dimples of rocking arm framework (50); The rear side processing of mounting seat (51) has a round boss, boss has a hemispherical dimples, the rounded portion of connection rod sphere II (56) and hemispherical dimples close contact, and be closely fitted on the round boss of mounting seat (51) by ball pivot lid II (57), make connection rod sphere II (56) freely rotatable in the hemispherical dimples of mounting seat (51);
The processing of described mounting seat (51) front has two rectangular channels being arranged symmetrically with, and rectangular channel housing and the anti-amortisseur that crawls testing amortisseur (9) link together, and the rounded portion of the anti-amortisseur that crawls just embeds in rectangular channel;
Connection rod sphere flange I (52) is identical with connection rod sphere flange II (55) structure, the afterbody of connection rod sphere flange I (52) and connection rod sphere I (53) is fixing to be connected, and the flange of connection rod sphere flange I (52) is connected with vertical actuator assembly (3); The afterbody of connection rod sphere flange II (55) and connection rod sphere II (56) is fixing to be connected, and the flange of connection rod sphere flange II (55) is connected with horizontal actuator assembly (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187804.6A CN105651532B (en) | 2016-03-29 | 2016-03-29 | Bullet train damper universal type testing stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187804.6A CN105651532B (en) | 2016-03-29 | 2016-03-29 | Bullet train damper universal type testing stand |
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| CN105651532A true CN105651532A (en) | 2016-06-08 |
| CN105651532B CN105651532B (en) | 2018-04-13 |
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| CN107449618A (en) * | 2017-07-17 | 2017-12-08 | 力帆实业(集团)股份有限公司 | Rear damping checking frock with reel cage |
| CN107831002A (en) * | 2017-11-06 | 2018-03-23 | 天津航天瑞莱科技有限公司 | In the air by the experimental rig of oily feeler lever shock absorber |
| CN107976325A (en) * | 2017-12-05 | 2018-05-01 | 佛山市南海区昭星减震器有限公司 | A kind of front damper of motorcycle durability test device |
| CN109459202A (en) * | 2018-11-08 | 2019-03-12 | 重庆长安汽车股份有限公司 | The pedestal of angle adjustable |
| CN111912635A (en) * | 2020-08-13 | 2020-11-10 | 中车大连机车车辆有限公司 | Bo axle type bogie for test and test method |
| CN114964830A (en) * | 2022-06-01 | 2022-08-30 | 长春汽车检测中心有限责任公司 | Vehicle shock absorber performance test device |
| CN116429458A (en) * | 2023-06-15 | 2023-07-14 | 常州坚正橡塑制品有限公司 | Multi-angle pressure testing device for automobile shock absorber |
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| CN201935795U (en) * | 2010-12-31 | 2011-08-17 | 长春机械科学研究院有限公司 | Double excitation durability test machine for shock absorber |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107449618A (en) * | 2017-07-17 | 2017-12-08 | 力帆实业(集团)股份有限公司 | Rear damping checking frock with reel cage |
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| CN107831002A (en) * | 2017-11-06 | 2018-03-23 | 天津航天瑞莱科技有限公司 | In the air by the experimental rig of oily feeler lever shock absorber |
| CN107976325A (en) * | 2017-12-05 | 2018-05-01 | 佛山市南海区昭星减震器有限公司 | A kind of front damper of motorcycle durability test device |
| CN109459202A (en) * | 2018-11-08 | 2019-03-12 | 重庆长安汽车股份有限公司 | The pedestal of angle adjustable |
| CN109459202B (en) * | 2018-11-08 | 2020-07-10 | 重庆长安汽车股份有限公司 | Base with adjustable angle |
| CN111912635A (en) * | 2020-08-13 | 2020-11-10 | 中车大连机车车辆有限公司 | Bo axle type bogie for test and test method |
| CN114964830A (en) * | 2022-06-01 | 2022-08-30 | 长春汽车检测中心有限责任公司 | Vehicle shock absorber performance test device |
| CN114964830B (en) * | 2022-06-01 | 2024-05-31 | 长春汽车检测中心有限责任公司 | Performance test device for vehicle shock absorber |
| CN116429458A (en) * | 2023-06-15 | 2023-07-14 | 常州坚正橡塑制品有限公司 | Multi-angle pressure testing device for automobile shock absorber |
| CN116429458B (en) * | 2023-06-15 | 2023-08-29 | 常州坚正橡塑制品有限公司 | Multi-angle pressure testing device for automobile shock absorber |
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