CN108801622A - Air spring three-dimensional Combined Loading fatigue experimental device and method - Google Patents
Air spring three-dimensional Combined Loading fatigue experimental device and method Download PDFInfo
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- CN108801622A CN108801622A CN201810761328.3A CN201810761328A CN108801622A CN 108801622 A CN108801622 A CN 108801622A CN 201810761328 A CN201810761328 A CN 201810761328A CN 108801622 A CN108801622 A CN 108801622A
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- G01M13/00—Testing of machine parts
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Abstract
Air spring three-dimensional Combined Loading fatigue experimental device and method, including bearing, characterized by further comprising the lateral charging assemblies for applying lateral dynamic load to air spring, Plumb load component for applying vertical dynamic load to air spring and the longitudinal biasing component for making air spring generation linear deformation, the lateral charging assembly is before and after air spring to setting on bearing, longitudinal subsection component is mounted on lateral charging assembly and the position location on lateral charging assembly is adjustable, air spring is on longitudinal biasing component, Plumb load component is vertically arranged mounted in the surface of air spring, and it is contacted with air spring.The present invention can be in simulated air spring actual operating mode load situation, accurately reflect the fatigue behaviour of air spring, detect the fatigue life of air spring, reliability and accurate experiment process and data are provided for optimization air spring constructions.
Description
Technical field
The present invention relates to a kind of air spring three-dimensional Combined Loading fatigue experimental device and method, simulation actual operating modes
Combined Loading fatigue test is carried out to air spring.
Background technology
With the speed-raising of railway transport of passengers and the development of EMU, higher want also proposed to the dynamic performance of vehicle
It asks, the suspension on conventional train is difficult to meet the needs of high speed traveling.Air spring has non-linear behavior, can be according to vehicle
Vibration performance is designed to ideal elastic characteristic curve；Sky, the loaded vehicle natural frequency of vibration can be made almost equal；Engagement height control
Valve use processed can make car body under different loads effect, keep vehicle floor face height to the top of rail constant；With good absorption
The performance of high-frequency vibration.Good characteristic based on air spring, air spring is in passenger train, EMU, railcar, light rail
The fields such as vehicle and magnetic-levitation train are used widely, and gradually replace traditional secondary suspension system.
Air spring working deformation is big, and complex stress condition is under vertical, horizontal and vertical load working condition, main
One of failure mode is fatigue rupture caused by rubber material crack propagation.Currently, the method for studying air spring fatigue failure
There are two types of：First, the crack initiation method based on Continuum Mechanics, this method is to predict rubber by given Damage Parameter
The fatigue crack initiation life of glue；Second is that the crack Propagation method based on fracture mechanics, this method is in known crackle
Under the conditions of power rate relationship between geological information, crack growth rate and tearing energy etc., the crack Propagation longevity of rubber is predicted
Life.And both methods is a kind of rationalistic research method.
Currently, the experimental technique of air spring relates generally to static rigidity experiment, forced vibration dynamic property, free vibration
Dynamic property, torsion stiffness, torsion cut rigidity, singly rock fatigue, it is double rock fatigue, high temperature performance, these experiments are mostly quiet
State is unidirectional, two-way and dynamic is unidirectional loads, and can only test out the specific performance parameter of air spring, cannot achieve vertical, lateral
The three-dimensional Combined Loading fatigue test of dynamic plus longitudinal biasing displacement.How according to the practical application operating mode of air spring, from reality
Border with angle set out, develop it is a kind of can realize simultaneously to air spring apply vertical, horizontal and vertical load compound plus
Testing program is carried, the fatigue behaviour of air spring is studied, there is very important meaning to improving vehicle rotating turret dynamic performance
Justice.
The relevant existing patent document retrieved is：
1,201510348550.7 CN, pendulum arm length regulating device and pairs of air spring torsion fatigue test device；
2, CN 201610159185.X, air spring torsion and shearing combined loading test device；
3,201610516686.9 CN, a kind of air spring fatigue tester of simulation real vehicle working condition.
Invention content
Air spring three-dimensional Combined Loading fatigue experimental device provided by the invention, can simulated air spring actual motion work
Load situation in condition, while vertical dynamic load, lateral dynamic load and longitudinal static load, the palm are applied to air spring
The case where holding fatigue loss and crack initiation of the air spring in load bearing process and shield exhibition, grasps vertical load and transverse load
When reaching maximum value simultaneously, the type of air spring becomes situation, accurately reflects the fatigue behaviour of air spring, detects air spring
Fatigue life provides reliability and accurate experiment process and data for optimization air spring constructions.The present invention also provides one kind
Air spring three-dimensional Combined Loading fatigue test method.
In order to achieve the above objectives, the technical scheme is that：
Air spring three-dimensional Combined Loading fatigue experimental device, including bearing, it is characterised in that further include for air spring
Apply the lateral charging assembly of lateral dynamic load, the Plumb load component for applying vertical dynamic load to air spring and
For making air spring that the longitudinal biasing component of linear deformation occur, the lateral charging assembly is before and after air spring to setting
It sets on bearing, the position location that longitudinal subsection component is mounted on lateral charging assembly and on lateral charging assembly is adjustable
Section, on longitudinal biasing component, Plumb load component is vertically arranged mounted in the surface of air spring air spring, and with
Air spring contacts.
Preferably, the Plumb load component includes that upper end can be oriented to the vertical guide rod being connect to oil cylinder with guide rod
The upper guidance set of cooperation and the lower guidance set that cooperation is oriented to bearing, the lower end of the guide rod are contacted with air spring, on
Guidance set and lower guidance set consistency from top to bottom are arranged, upper guidance set at left and right sides of bearing and with ground is fixed hangs down
Right cylinder is fixed, and lower guidance set is on bearing.
Preferably, the upper guidance set includes matching with the fixed crossbeam of vertical pillars and on crossbeam and with guide rod
The linear bearing of conjunction, the lower guidance set include guide plate and fix the sleeve of suit on guide plate and with guide rod,
The guide plate is oriented to bearing to be coordinated.
Preferably, the bearing includes pedestal and at left and right sides of the pedestal and the side plate that is vertically arranged, described
Guide plate end is oriented to side plate to be coordinated, and connecting plate is connected between two side plates, and guide rod runs through connecting plate.
Preferably, the lateral charging assembly include pedestal mounted drum assembly, setting on the roller assembly and
With the slide plate of drum assembly sliding cooperation, with the guide rail that cooperation is oriented at left and right sides of slide plate and be fixed on nose and can be with cross
Anti-sway bar is connected to oil cylinder, it is adjustable that longitudinal subsection component is mounted on the position location on slide plate and on slide plate.
Preferably, the longitudinal biasing component include mounting base on the slide plate and along air spring or so to setting
Adjusting lead screw, the adjusting lead screw is set to the left or right side of mounting base, and one end is connect with mounting base screw-thread fit, separately
One end and bearing screw-thread fit, position location of the mounting base on slide plate can be adjusted along lead screw direction is adjusted.
Preferably, the mounting base is in hollow out shape, and bottom is provided with the strip-shaped hole more parallel than bar with adjusting, is opened on slide plate
Taper positioning counterbore corresponding with strip-shaped hole, and taper positioning counterbore is spaced apart multiple, taper positioning along kidney slot direction
It sells in strip-shaped hole and a taper positioning counterbore being fastened in it.
Preferably, the cross section of the guide rail is in L fonts, and the left and right sides of slide plate is in step-like, is stretched into guide rail,
And the roller being in contact with guide rail is respectively arranged on slide plate left side or right side, side uniform intervals of the roller in slide plate
Distribution, and rolled along guide rail with the sliding of slide plate.
Air spring three-dimensional Combined Loading fatigue test method, it is tired using above-described air spring three-dimensional Combined Loading
Labor experimental rig is tested, and steps are as follows：
The first step axially aligns longitudinal biasing component and Plumb load component, is placed on lateral charging assembly, then by air bullet
Spring is on longitudinal biasing component；
Second step is required according to longitudinal load-bearing, is changed position and positioning of the longitudinal biasing component on lateral charging assembly, is made sky
Linear deformation occurs for gas spring；
Third walks, and lateral charging assembly is connected lateral oil cylinder, Plumb load component is connected vertical oil cylinder, and in lateral oil cylinder
It is separately connected displacement sensor and load transducer with the external part of vertical oil cylinder；
4th step, while starting lateral oil cylinder and vertical oil cylinder, dynamic load is carried out to air spring, is received by external system
The sensed data and record of displacement sensor and load transducer.
Preferably, " second step " is specially:
First, it will adjust after lead screw is threadedly coupled with mounting base, rotation adjusting lead screw, pushing installation seat, change mounting base is in cunning
Position on plate makes air spring that linear deformation occur；
Then, it passes through strip-shaped hole with conical dowel pin and is fastened in taper positioning counterbore, mounting base is made to be located on slide plate；
Finally, it unclamps mounting base and adjusts the threaded connection of lead screw, adjusting lead screw is made to be detached with mounting base.
The beneficial effects of the invention are as follows：
1, the load situation in simulated air spring actual operating mode, while vertical dynamic load, cross are applied to air spring
To dynamic load and longitudinal static load, fatigue loss and crack initiation and shield exhibition of the air spring in load bearing process are grasped
Situation, when grasp vertical load reaches maximum value simultaneously with transverse load, the type of air spring becomes situation, accurately reflects air bullet
The fatigue behaviour of spring detects the fatigue life of air spring, and reliability and accurately experiment are provided for optimization air spring constructions
Process and data.
2, Plumb load component includes upper guidance set and lower guidance set, and dual guide frame positions Vertical loading side
To shortening guiding point reduces the frictional force of guide post to the brachium of load(ing) point, and effectively improve guide post supports roll capability, improves and hangs down
To the test accuracy and reliability of load.
3, lateral charging assembly realizes the transverse movement of air spring, slide plate by the sliding cooperation of slide plate and drum assembly
It is to roll to coordinate with roller in drum assembly, larger lateral displacement can be applied, CONTACT WITH FRICTION area is big, and heat dissipation performance is high,
It can bear longer test period.
4, longitudinal biasing component adjusts the position of mounting base, to make air spring by adjusting lead screw pushing installation seat
Linear deformation occurs, the linear deformation of air spring is easy to adjust, it is easy to accomplish the longitudinal biasing of air spring, and facilitate adjusting
Longitudinal biasing displacement.
5, roller with guide rail contact is set on the slide plate of lateral charging assembly, roller is rolled with the sliding of slide plate along guide rail
It is dynamic, the reaction force that air spring linear deformation generates is applied to by roller on guide rail, rolling of the roller on guide rail is passed through
It is dynamic, reduce the frictional force between slide plate and guide rail, improve the friction radiating efficiency between slide plate and guide rail, reduces the mill of slide plate and guide rail
Damage, to improve the test data accuracy laterally loaded, and extends the service life of lateral charging assembly.
Description of the drawings
Fig. 1 is the front view of air spring three-dimensional Combined Loading fatigue experimental device in specific implementation mode.
Fig. 2 is the structural schematic diagram of air spring three-dimensional Combined Loading fatigue experimental device when not taking guidance set.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the structural schematic diagram of mounting base.
Fig. 5 is the sectional view of slide plate.
Fig. 6 is the enlarged diagram at A in Fig. 2.
Specific implementation mode
It below will the present invention will be further described by attached drawing 1 ~ 6 and embodiment.
Air spring three-dimensional Combined Loading fatigue experimental device, including bearing 1, it is characterised in that further include for air
Spring applies lateral charging assembly 2, the Plumb load for applying vertical dynamic load to air spring of lateral dynamic load
Component 3 and for make air spring occur linear deformation longitudinal biasing component 4, the lateral charging assembly 2 is along air bullet
Spring is front and back to be mounted in setting on bearing 1, and longitudinal subsection component 4 is mounted on lateral charging assembly 2 and on lateral charging assembly 2
Position location is adjustable, and for air spring on longitudinal biasing component 4, Plumb load component 3, which is vertically arranged, is mounted in air bullet
The surface of spring, and contacted with air spring.
As shown in Figure 1, Plumb load component 3 is from vertical application load, lateral charging assembly 2 is from being laterally air spring
It is front and back to load is applied, longitudinal biasing component 4 is from longitudinal left and right for being air spring to longitudinal biasing load is applied, wherein vertical
Load and transverse load are dynamic load, and longitudinal loading is static load, is consistent with the actual operating mode of air spring, right
Load situation in air spring actual operating mode is simulated, while applying vertical dynamic load, transverse direction to air spring
Dynamic load and longitudinal static load grasp the feelings of fatigue loss and crack initiation and shield exhibition of the air spring in load bearing process
Condition, when grasp vertical load reaches maximum value simultaneously with transverse load, the type of air spring becomes situation, accurately reflects air spring
Fatigue behaviour, detect the fatigue life of air spring, provide and reliability and accurately tested for optimization air spring constructions
Journey and data.
Wherein, the Plumb load component 3 can be led with the vertical guide rod 31 being connect to oil cylinder with guide rod 31 including upper end
The lower guidance set 33 of cooperation, 31 lower end of guide rod and air bullet are oriented to the upper guidance set 32 of cooperation and with bearing 1
Spring contacts, and upper guidance set 32 is with the setting of lower 33 consistency from top to bottom of guidance set, upper guidance set 32 and positioned at 1 left and right sides of bearing
And fixed with the fixed vertical pillars in ground, lower guidance set 33 is on bearing 1.
The upper guidance set 32 include with the fixed crossbeam 32.1 of vertical pillars and on crossbeam 32.1 and with lead
The linear bearing 32.2 that bar 31 coordinates, the lower guidance set 33 include guide plate 33.1 and on the guide plate 33.1 and with
Guide rod 31 fixes the sleeve 33.2 of suit, and the guide plate 33.1 is oriented to bearing 1 to be coordinated.
The bearing 1 is described including pedestal 11 and mounted in the side plate 12 pedestal 11 left and right sides and be vertically arranged
33.1 end of guide plate is oriented to side plate 12 to be coordinated, and connecting plate 13 is connected between two side plates 12, and guide rod 31 runs through connecting plate
13。
It can be seen from the figure that guide post 31 is oriented to together by upper guidance set 32 and lower guidance set 33, and under lead
The side plate 12 of guide plate 33.1 and bearing 1 into component, which is oriented to, to be coordinated, and is applied to air spring 100 when guide post 31 moves up and down
When dynamic load, guide post 31 can move back and forth in linear bearing 32.2, and guide plate 33.1 can be transported with the movement of guide rod 31
It is dynamic, but the movement of guide plate 33.1 can't increase the friction of guide rod 31, thus while having dual guide function, effectively improve
Be oriented to accuracy and guide post supports roll capability, but the frictional force of guide rod 31 can't increase, can effectively reduce guide rod 31
Abrasion.And the guiding fit structure of the linear bearing 32.2 on crossbeam 32.1 and guide post 31, it is vertical compared to in the prior art four
The structure that pillar frame is oriented to, shortens guiding point to the distance of load(ing) point, reduces the spatial volume of Plumb load component 3,
Improve the structural compactness of experimental rig.
Wherein, the lateral charging assembly 2 includes the drum assembly 21 being mounted on bearing 1, is arranged in drum assembly 21
Upper and the slide plate 22 coordinated with the sliding of drum assembly 21 and 22 left and right sides of slide plate are oriented to the guide rail 23 of cooperation and are fixed on slide plate
22 front ends and anti-sway bar 24 can be connect with lateral oil cylinder, longitudinal subsection component 4 is mounted on slide plate 22 and on slide plate 22
Position location it is adjustable.When laterally push away can bar 24 connect with lateral oil cylinder after, by promotion slide plate 22 on drum assembly 21
Reciprocating motion realize the lateral load of air spring, larger lateral displacement can be applied, drum assembly 21 is by more rollers
Assemble side by side, drive roller to rotate by the reciprocating motion of slide plate 22, the contact area of roller and slide plate 22 is big, friction
Radiating efficiency higher can bear longer test period, and the wear rate of slide plate 22 is lower, and service life is also longer.
Wherein, the longitudinal biasing component 4 include mounting base 41 on the slide plate 22 and along air spring or so to
The adjusting lead screw 42 of setting, the adjusting lead screw 42 are set to the left or right side of mounting base 41, one end and 41 spiral shell of mounting base
Line is connected, the other end and 1 screw-thread fit of bearing, and position location of the mounting base 41 on slide plate 22 can be along adjusting 42 side of lead screw
To adjusting.
The mounting base 41 is in hollow out shape, and bottom is provided with the strip-shaped hole 41.1 more parallel than bar 42 with adjusting, slide plate 22
On open taper positioning counterbore 22.1 corresponding with strip-shaped hole 41.1, and taper positioning counterbore 22.1 is between 41.1 direction of kidney slot
Multiple every being distributed, conical dowel pin passes through in strip-shaped hole 41.1 and a taper positioning counterbore 22.1 being fastened in it.
In initial installation, first mounting base 41 is placed on slide plate 22, not positioned, further according to air spring 100
Linear deformation demand, with adjust 42 pushing installation seat 41 of lead screw, make mounting base 41 22 upper edge air spring of slide plate or so to
Mobile, air spring generates linear deformation, and after reaching Deformation Demands, mounting base 41 is located in slide plate 22 by conical dowel pin
On, keep air spring longitudinal biasing, the linear deformation of air spring easy to adjust, it is easy to accomplish the longitudinal biasing of air spring,
And facilitates and adjust longitudinal biasing displacement.Before starting vertical and lateral load, lead screw 42 will be adjusted and detached with mounting base 41, with
Exempt to form interference to the lateral load of air spring.
Wherein, the cross section of the guide rail 23 is in L fonts, and the left and right sides of slide plate 22 is in step-like, stretches into guide rail
In 23, and the roller 22.2 being in contact with guide rail 23 is respectively arranged on 22 left side of slide plate or right side, the roller 22.2 exists
The side of slide plate 22 is evenly spaced on, and is rolled along guide rail 23 with the sliding of slide plate 22.
When slide plate 22 slides, roller 22.2 is rolled with the sliding of slide plate along guide rail 23, and air spring linear deformation is produced
Raw reaction force is applied to by roller 22.2 on guide rail 23, by rolling of the roller 22.2 on guide rail 23, reduces slide plate
Frictional force between guide rail improves the friction radiating efficiency between slide plate and guide rail, reduces the abrasion of slide plate and guide rail, to improve
The test data accuracy laterally loaded, and extend the service life of lateral charging assembly.
The present invention also protects a kind of air spring three-dimensional Combined Loading fatigue test method, using above-described air bullet
Spring three-dimensional Combined Loading fatigue experimental device is tested, and steps are as follows：
The first step axially aligns longitudinal biasing component 1 and Plumb load component 3, is placed on lateral charging assembly 2, then will be empty
Gas spring is on longitudinal biasing component 1；
Second step is required according to longitudinal load-bearing, is changed position and positioning of the longitudinal biasing component 1 on lateral charging assembly 2, is made
Linear deformation occurs for air spring；
Third walks, and lateral charging assembly 2 is connected lateral oil cylinder, Plumb load component 3 is connected vertical oil cylinder, and in lateral oil
The external part of cylinder and vertical oil cylinder is separately connected displacement sensor and load transducer；
4th step, while starting lateral oil cylinder and vertical oil cylinder, dynamic load is carried out to air spring, is received by external system
The sensed data and record of displacement sensor and load transducer.
" second step " is specially:
First, it will adjust after lead screw 42 is threadedly coupled with mounting base 41, rotation adjusts lead screw 42, pushing installation seat 41, and change is pacified
Position of the seat 41 on slide plate 22 is filled, makes air spring that linear deformation occur；
Then, it passes through strip-shaped hole 41.1 with conical dowel pin and is fastened in taper positioning counterbore 22.1, mounting base 41 is made to position
On slide plate 22；
Finally, it unclamps mounting base 41 and adjusts the threaded connection of lead screw 42, adjusting lead screw 42 is made to be detached with mounting base 41.
Above-described test method, Plumb load component 3 are from lateral from vertical application load, lateral charging assembly 2
Air spring it is front and back to applying load, longitudinal biasing component 4 from it is longitudinal be that the left and right of air spring is carried to longitudinal biasing is applied
Lotus, wherein vertical load and transverse load are dynamic load, and longitudinal loading is static load, the actual motion with air spring
Operating mode is consistent, and is simulated to the load situation in air spring actual operating mode, while applying to air spring vertical dynamic
State load, lateral dynamic load and longitudinal static load are grasped fatigue loss and crackle of the air spring in load bearing process and are sprouted
The case where raw and shield exhibition, when grasp vertical load reaches maximum value simultaneously with transverse load, the type of air spring becomes situation, accurately
Reflect air spring fatigue behaviour, detect the fatigue life of air spring, for optimization air spring constructions provide reliability and
Accurately experiment process and data；By displacement sensor and load transducer record in real time it is vertical with lateral dynamic load with
Deformation displacement forms complete air spring fatigue failure process testing data, advanced optimizes and carries for the structure of air spring
It is supported for reliable and effective test data.
The technical solution of the embodiment of the present invention is completely described above in association with attached drawing, it should be noted that described
Embodiment is only a part of the embodiment of the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
Claims (10)
1. air spring three-dimensional Combined Loading fatigue experimental device, including bearing（1）, it is characterised in that further include for air
Spring applies the lateral charging assembly of lateral dynamic load（2）, for air spring apply vertical dynamic load vertical plus
Carry component（3）With the longitudinal biasing component for making air spring generation linear deformation（4）, the lateral charging assembly（2）
Before and after air spring bearing is mounted in setting（1）On, longitudinal subsection component（4）Mounted in lateral charging assembly（2）Above and in cross
To charging assembly（2）On position location it is adjustable, air spring is mounted in longitudinal biasing component（4）On, Plumb load component（3）
Vertically setting is mounted in the surface of air spring, and is contacted with air spring.
2. air spring three-dimensional Combined Loading fatigue experimental device according to claim 1, it is characterised in that described hangs down
To charging assembly（3）It can be with the vertical guide rod being connect to oil cylinder including upper end（31）, with guide rod（31）It is oriented to the upper guiding of cooperation
Component（32）With with bearing（1）It is oriented to the lower guidance set of cooperation（33）, the guide rod（31）Lower end is contacted with air spring,
Upper guidance set（32）With lower guidance set（33）Consistency from top to bottom is arranged, upper guidance set（32）With positioned at bearing（1）Left and right two
It side and is fixed with the fixed vertical pillars in ground, lower guidance set（33）Mounted in bearing（1）On.
3. air spring three-dimensional Combined Loading fatigue experimental device according to claim 2, it is characterised in that described is upper
Guidance set（32）Including with the fixed crossbeam of vertical pillars（32.1）With mounted in crossbeam（32.1）Upper and and guide rod（31）Cooperation
Linear bearing（32.2）, the lower guidance set（33）Including guide plate（33.1）With mounted in guide plate（33.1）It is upper and with
Guide rod（31）The sleeve of fixed suit（33.2）, the guide plate（33.1）With bearing（1）It is oriented to cooperation.
4. air spring three-dimensional Combined Loading fatigue experimental device according to claim 3, it is characterised in that the branch
Seat（1）Including pedestal（11）With mounted in pedestal（11）The left and right sides and the side plate being vertically arranged（12）, the guide plate
（33.1）End and side plate（12）It is oriented to cooperation, two side plates（12）Between be connected with connecting plate（13）, guide rod（31）Through even
Fishplate bar（13）.
5. air spring three-dimensional Combined Loading fatigue experimental device according to claim 1, it is characterised in that the cross
To charging assembly（2）Including being mounted in bearing（1）On drum assembly（21）, be arranged in drum assembly（21）Upper and and drum assembly
（21）Slide the slide plate of cooperation（22）With slide plate（22）The left and right sides is oriented to the guide rail of cooperation（23）Be fixed on slide plate（22）Before
It holds and anti-sway bar can be connect with lateral oil cylinder（24）, longitudinal subsection component（4）Mounted on slide plate（22）Above and in slide plate
（22）On position location it is adjustable.
6. air spring three-dimensional Combined Loading fatigue experimental device according to claim 5, it is characterised in that described is vertical
To biasing assembly（4）Including being mounted in slide plate（22）On mounting base（41）With the adjusting lead screw along air spring or so to setting
（42）, the adjusting lead screw（42）It is set to mounting base（41）Left or right side, one end and mounting base（41）Screw-thread fit
Connection, the other end and bearing（1）Screw-thread fit, mounting base（41）In slide plate（22）On position location can along adjust lead screw（42）
Direction is adjusted.
7. air spring three-dimensional Combined Loading fatigue experimental device according to claim 6, it is characterised in that the peace
Fill seat（41）In hollow out shape, bottom is provided with compares bar with adjusting（42）Parallel strip-shaped hole（41.1）, slide plate（22）On open and item
Shape hole（41.1）Corresponding taper positioning counterbore（22.1）, and taper positioning counterbore（22.1）Along kidney slot（41.1）Between direction
Multiple every being distributed, conical dowel pin passes through strip-shaped hole（41.1）An and taper positioning counterbore being fastened in it（22.1）In.
8. air spring three-dimensional Combined Loading fatigue experimental device according to claim 6, it is characterised in that described leads
Rail（23）Cross section be in L fonts, slide plate（22）The left and right sides be in it is step-like, stretch into guide rail（23）In, and slide plate（22）
It is respectively arranged on left side or right side and guide rail（23）The roller being in contact（22.2）, the roller（22.2）In slide plate（22）
Side be evenly spaced on, and with slide plate（22）Sliding along guide rail（23）It rolls.
9. air spring three-dimensional Combined Loading fatigue test method, using claim 1 to 8 any one of them air spring three
It is tested to Combined Loading fatigue experimental device, steps are as follows：
The first step, by longitudinal biasing component（1）With Plumb load component（3）It axially aligns, is placed in lateral charging assembly（2）On,
Air spring is mounted in longitudinal biasing component again（1）On；
Second step is required according to longitudinal load-bearing, changes longitudinal biasing component（1）In lateral charging assembly（2）On position and fixed
Position makes air spring that linear deformation occur；
Third walks, by lateral charging assembly（2）The lateral oil cylinder of connection, by Plumb load component（3）Vertical oil cylinder is connected, and in cross
It is separately connected displacement sensor and load transducer to the external part of oil cylinder and vertical oil cylinder；
4th step, while starting lateral oil cylinder and vertical oil cylinder, dynamic load is carried out to air spring, is received by external system
The sensed data and record of displacement sensor and load transducer.
10. air spring three-dimensional Combined Loading fatigue test method according to claim 9, it is characterised in that described
" second step " is specially:
First, lead screw will be adjusted（42）With mounting base（41）After threaded connection, rotation adjusts lead screw（42）, pushing installation seat
（41）, change mounting base（41）In slide plate（22）On position, make air spring occur linear deformation；
Then, strip-shaped hole is passed through with conical dowel pin（41.1）And it is fastened on taper positioning counterbore（22.1）In, make mounting base
（41）It is located in slide plate（22）On；
Finally, mounting base is unclamped（41）With adjusting lead screw（42）Threaded connection, make adjusting lead screw（42）With mounting base（41）Point
From.
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| CN201810761328.3A CN108801622B (en) | 2018-07-12 | 2018-07-12 | Air spring three-way composite loading fatigue test device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111595705A (en) * | 2020-06-03 | 2020-08-28 | 常州市新创智能科技有限公司 | Equipment compartment fatigue test frock |
| CN112485027A (en) * | 2020-12-10 | 2021-03-12 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
| CN113125255A (en) * | 2021-03-22 | 2021-07-16 | 株洲时代新材料科技股份有限公司 | Device and method for testing tensile fatigue of embedded part of blade root of wind power blade |
| CN113977489A (en) * | 2021-11-15 | 2022-01-28 | 株洲时代瑞唯减振装备有限公司 | Be used for single rigidity test frock of rail vehicle V type spring |
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| CN111595705A (en) * | 2020-06-03 | 2020-08-28 | 常州市新创智能科技有限公司 | Equipment compartment fatigue test frock |
| CN111595705B (en) * | 2020-06-03 | 2023-03-14 | 常州市新创智能科技有限公司 | Equipment compartment fatigue test frock |
| CN112485027A (en) * | 2020-12-10 | 2021-03-12 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
| CN113125255A (en) * | 2021-03-22 | 2021-07-16 | 株洲时代新材料科技股份有限公司 | Device and method for testing tensile fatigue of embedded part of blade root of wind power blade |
| CN113977489A (en) * | 2021-11-15 | 2022-01-28 | 株洲时代瑞唯减振装备有限公司 | Be used for single rigidity test frock of rail vehicle V type spring |
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