CN106289848B - The vertical cross force of high-speed railway wheel track couples loading simulator - Google Patents
The vertical cross force of high-speed railway wheel track couples loading simulator Download PDFInfo
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- CN106289848B CN106289848B CN201610933206.9A CN201610933206A CN106289848B CN 106289848 B CN106289848 B CN 106289848B CN 201610933206 A CN201610933206 A CN 201610933206A CN 106289848 B CN106289848 B CN 106289848B
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
Abstract
The invention discloses a kind of vertical cross forces of high-speed railway wheel track to couple loading simulator, high speed railway track model configuration including reaction frame and in reaction frame bottom, the vertical force application mechanism of the track of vertical force that acts on track structure when being equipped between reaction frame and high speed railway track model configuration for simulating high ferro train actual motion and for simulating high ferro train actual motion when, act on the track transverse direction force application mechanism of the cross force of track structure, the vertical force application mechanism of track and track transverse direction force application mechanism for simulating the bogie simulation mechanism of high ferro train bogie by acting on to high speed railway track model configuration.The vertical force and cross force of track structure are acted on when can simulate train actual motion simultaneously so that test result is more bonded reality.For Track/subgrade in High-speed Railway is vertical, horizontal dynamic analysis provides reliable weighted platform, experimental basis is provided to disclose track structure damage and failure time dependent feature.
Description
Technical field
The present invention relates to high-speed railway modelling technique fields, particularly, it is vertical laterally to be related to a kind of high-speed railway wheel track
Couple of force closes loading simulator.
Background technology
Railway construction in China is just being in the gesture of great-leap-forward development, among a plurality of Line for Passenger Transportation and high-speed railway are being built.With
The raising of train running speed, the dynamics problem of engineering structure becomes increasingly conspicuous, and current high-speed railway dynamics Design is still
The theoretical system of system is not formed, and existing design method has been difficult to meet the needs of high-speed railway fast development.For high-speed iron
Road engineering structure dynamics critical issue carries out model test to bullet train-track-roadbed system dynamics, proposes high speed
Railroad track-roadbed power performance indoor model test and on-the-spot test standard, to forming China with independent intellectual property right
High-speed railway building technology system has great practical significance, is provided for China express railway construction and sustainable development important
Technical support.
Currently, high-speed railway dynamic load simulator is only capable of meeting vertical power load, and bullet train is at runtime
Since serpentine locomotion can apply Lateral Force to rail, the safety of track-structure and train operation can also be caused
Very important influence, existing simulator have ignored track structure in the effect for actually runing other directions born in the process
Power influence, cannot completely study track dynamic characteristic, by this actual size model simulation reflection track-roadbed through when
Sexual behaviour has its limitation.
Invention content
The present invention provides a kind of vertical cross forces of high-speed railway wheel track to couple loading simulator, to solve existing high-speed iron
Road dynamic load simulator, have ignored track structure influences in the active force for actually runing other directions born in the process,
Track dynamic characteristic cannot be completely studied, the time dependent behavior of track-roadbed of this actual size model simulation reflection is passed through
There is the technical issues of its limitation.
The present invention provides a kind of high-speed railway wheel track cross force of hanging down and couples loading simulator, including reaction frame and is in
The high speed railway track model configuration of reaction frame bottom is equipped between reaction frame and high speed railway track model configuration for simulating
The vertical force application mechanism of track for the vertical force for acting on track structure when high ferro train actual motion and for simulate high ferro row
The track transverse direction force application mechanism of the cross force of track structure is acted on when vehicle actual motion, the vertical force application mechanism of track and track are horizontal
To force application mechanism by being acted on to high speed railway track simulation knot for simulating the bogie simulation mechanism of high ferro train bogie
On structure.
Further, bogie simulation mechanism include two groups be mounted on high speed railway track model configuration track on be used for
Simulation high ferro train bogie and prevent the half wheel that the track in high speed railway track model configuration rolls to, it is vertical simultaneously
It is symmetrical to be fixed in half wheel to upper for uniformly transferring the rigid distribution beam of upper load and along two groups of half wheels
To cloth set direction connect two groups of half wheels to being used to make two groups of half wheels in groups and to uniformly transfer load to fixed
Wheel to longitudinally connected bar.
Further, rigid distribution beam is vertical and symmetrically placed on the semicircle wheel of half wheel pair, and passes through weldering
Fixation is connect, to prevent rigidity distribution Liang Sicheng during experiment from transfiniting.
Further, track transverse direction force application mechanism includes being fixed in reaction frame along the transverse direction of high speed railway track model configuration
Diagonal brace on and for uniformly applying the lateral actuator of cross force to bogie simulation mechanism, lateral actuator passes through horizontal solid
Determine device to be fixed on the diagonal brace of reaction frame, be equipped with for transversely actuator between lateral actuator and the crossbeam of reaction frame
Laterally secure the vertical fixture of lateral actuator；The start head of lateral actuator is connected to two by pass force crossly bar/
One wheel is to upper, and lateral actuator, pass force crossly bar and half wheel are to coaxially arranged.
Further, pass force crossly bar includes the transmission rod front end being welded by one block of steel plate and four steel cylinders
And the transmission rod end being made of a steel cylinder.
Further, the vertical force application mechanism of track includes vertically being fixed on the crossbeam of reaction frame and vertical high-speed railway
Orbital simulation structure is used to uniformly apply to bogie simulation mechanism the vertical actuator of vertical force, the start head of vertical actuator
It is placed in the groove that rigid distribution beam upper surface opens up, is equipped between the start head and bottom portion of groove of vertical actuator for making to hang down
Limited movement is generated to actuator to adapt to the rigidity of influence of the load due to lateral actuator to vertical actuator position
The start head bottom of idler wheel, vertical actuator is contacted by rigid roller with rigid distribution beam.
Further, the groove depth of groove is more than the spacing between the start head and the slot bottom of groove of vertical actuator, to prevent
Only start head is deviate from out of groove.
Further, there are the gaps of 3cm-5cm between the start head and the groove sidewall of groove of vertical actuator, to ensure
Vertical actuator only has bottom and is contacted with rigid distribution beam by rigid roller.
Further, arch upward 1cm-5cm upwards for rigid distribution beam bottom, and edge of arching upward is arranged for preventing it vertical
Downwarp contact wheel axis and the arc-shaped transition for preventing stress concentration when actuator loads.
Further, the crossbeam of reaction frame is equipped with the lifting lug for lifting reaction frame；The column of reaction frame is that height can
The telescopic column of tune or the crossbeam of reaction frame height on column are adjustable.
The invention has the advantages that：
The vertical cross force of high-speed railway wheel track of the present invention couples loading simulator, when can simulate train actual motion simultaneously
The vertical force and cross force of track structure are acted on, and cross force and vertical force combine the active force for simulating other directions, make
It obtains test result and is more bonded reality.Bogie simulation mechanism simulates high-speed train bogie, and vertical force and cross force are transferred to
Bogie simulation mechanism can simulate the effect of vertical force and cross force to track structure in train actual motion.Pass through counter-force
Frame can freely adjust the mounting height of simulator, pre- to the vertical force application mechanism of track and the input of track transverse direction force application mechanism
If dynamic load time-histories, different track structure forms can be loaded.It is vertical, horizontal for high speed railway track-roadbed
Reliable weighted platform is provided to dynamic analysis, experimental basis is provided to disclose track structure damage and failure time dependent feature.
Other than objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Figure；
Fig. 2 is that the high-speed railway wheel track of the preferred embodiment of the present invention hangs down cross force coupling loading simulator along circuit longitudinal direction
The structural schematic diagram of section；
Fig. 3 is the plan structure of the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Schematic diagram；
Fig. 4 is the stereochemical structure of the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Schematic diagram；
Fig. 5 is the dimensional structure diagram of the rigid distribution beam of the preferred embodiment of the present invention.
Marginal data：
1, reaction frame；2, lateral actuator；3, vertical actuator；4, rigid distribution beam；5, horizontal fixture；6, vertical
Fixing device；7, pass force crossly bar；8, half wheel pair；9, longitudinally connected bar；10, rigid roller；11, crossbeam；12, tiltedly
Support；13, transmission rod front end；14, transmission rod end.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the structural representation of the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Figure；Fig. 2 is that the high-speed railway wheel track of the preferred embodiment of the present invention hangs down cross force coupling loading simulator along circuit longitudinal direction section
Structural schematic diagram；Fig. 3 is bowing for the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Depending on structural schematic diagram；Fig. 4 is the vertical of the vertical cross force coupling loading simulator of high-speed railway wheel track of the preferred embodiment of the present invention
Body structural schematic diagram；Fig. 5 is the dimensional structure diagram of the rigid distribution beam of the preferred embodiment of the present invention.
As shown in Figure 1, the high-speed railway wheel track of the present embodiment hangs down, cross force couples loading simulator, including reaction frame 1
And the high speed railway track model configuration in 1 bottom of reaction frame, it is set between reaction frame 1 and high speed railway track model configuration
It is useful for the vertical force application mechanism of track for the vertical force for acting on track structure when simulation high ferro train actual motion and is used for
The track transverse direction force application mechanism of the cross force of track structure is acted on when simulating high ferro train actual motion, track vertically exerts a force machine
Structure and track transverse direction force application mechanism are acted on by the bogie simulation mechanism for simulating high ferro train bogie to high-speed railway
In orbital simulation structure.The vertical cross force of high-speed railway wheel track of the present invention couples loading simulator, can simulate train reality simultaneously
Border acts on the vertical force and cross force of track structure when running, and cross force and vertical force combine the work for simulating other directions
Firmly so that test result is more bonded reality.Bogie simulation mechanism simulates high-speed train bogie, vertical force and cross force
It is transferred to bogie simulation mechanism, the effect of vertical force and cross force to track structure in train actual motion can be simulated.It is logical
The mounting height of simulator can freely be adjusted by crossing reaction frame 1, to the vertical force application mechanism of track and track transverse direction force machine
Structure inputs preset dynamic load time-histories, can be loaded to different track structure forms.For high speed railway track-roadbed
Vertical, horizontal dynamic analysis provides reliable weighted platform, and reality is provided to disclose track structure damage and failure time dependent feature
Test foundation.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, bogie simulation mechanism includes two groups and is mounted on high-speed iron
For simulating high ferro train bogie and preventing the rail in high speed railway track model configuration on the track of rail road model configuration
It is half wheel pair 8 that road rolls, vertical and be symmetrically fixed on half wheel pair 8 for uniformly transferring the rigid of upper load
Property distribution beam 4 and connect two groups of half wheels pair 8 for making two group two to divide along the cloth set direction of two groups of half wheels pair 8
One of wheel fixed to 8 and in groups and uniformly transfer the wheel of load to longitudinally connected bar 9.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, rigid distribution beam 4 is vertical and symmetrically placed in half
It takes turns on to 8 semicircle wheel, and by being welded and fixed, to prevent rigid 4 displacement of distribution beam during experiment from transfiniting.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, track transverse direction force application mechanism includes along high speed railway track
The transverse direction of model configuration is fixed in the cross on the diagonal brace 12 of reaction frame 1 and for uniformly applying cross force to bogie simulation mechanism
To actuator 2.Lateral actuator 2 is fixed on by horizontal fixture 5 on the diagonal brace 12 of reaction frame 1.Lateral actuator 2 with it is anti-
The vertical fixture 6 for lateralling secure lateral actuator 2 for transversely actuator 2 is equipped between the crossbeam 11 of power frame 1.It is horizontal
It is connected on half wheel pair 8 by pass force crossly bar 7 to the start head of actuator 2.Lateral actuator 2, pass force crossly bar 7
And half wheel pair 8 is coaxially arranged.
Shown in as shown in Figure 1, Figure 3 and Figure 4, in the present embodiment, pass force crossly bar 7 includes by one block of steel plate and four steel cylinders
The transmission rod front end 13 that body is welded and the transmission rod end 14 being made of a steel cylinder.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, the vertical force application mechanism of track includes vertically affixed
On the crossbeam 11 of reaction frame 1 and vertical high speed railway track model configuration is vertical for uniformly applying to bogie simulation mechanism
The vertical actuator 3 of power.The start head of vertical actuator 3 is placed in the groove that 4 upper surface of rigid distribution beam opens up.Vertical start
It is equipped between the start head and bottom portion of groove of device 3 for making vertical actuator 3 generate limited movement to adapt to due to lateral work
The rigid roller 10 of influence of the load of dynamic device 2 to 3 position of vertical actuator.The start head bottom of vertical actuator 3 passes through rigid
Property idler wheel 10 contacted with rigid distribution beam 4.
As shown in figure 5, in the present embodiment, the groove depth of groove be more than vertical actuator 3 start head and groove slot bottom it
Between spacing, to prevent start head from deviating from out of groove.
As shown in figure 5, in the present embodiment, there are 3cm-5cm between the start head and the groove sidewall of groove of vertical actuator 3
Gap, 4 contacted with rigidity distribution beam by rigid roller 10 with ensureing that vertical actuator 3 only has bottom.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, arch upward 4 bottom of rigid distribution beam 1cm-5cm upwards.
Edge setting arch upward for preventing its downwarp contact wheel axis and arc mistake for preventing stress concentration when vertical actuator 3 loads
It crosses.
As shown in Figure 1, in the present embodiment, the crossbeam 11 of reaction frame 1 is equipped with the lifting lug for lifting reaction frame 1.Counter-force
The height on column is adjustable for the crossbeam 11 of adjustable for height telescopic column or reaction frame 1 for the column of frame 1.
When implementation, a kind of vertical cross force coupling loading simulator of high-speed railway wheel track, including reaction frame 1, transverse direction are provided
Actuator 2, vertical actuator 3, rigid distribution beam 4, horizontal fixture 5, vertical fixture 6,7, two points of pass force crossly bar
One of rigid roller 10 of the wheel between 8, longitudinally connected bar 9 and vertical actuator 3 and rigid distribution beam 4.Reaction frame 1 includes cross
Beam 11, diagonal brace 12 etc..3 lower part of vertical actuator is placed in the groove of rigid distribution beam 4, and rigid roller 10 is arranged between the two.
Rigid distribution beam 4 is vertical and symmetrically placed on one group of half wheel pair 8.Using vertical between two groups of half wheels pair 8
It is connected to connecting rod 9.Horizontal fixture 5 is bolted on diagonal brace 12, and vertical fixture 6 is bolted to crossbeam
11, its underpart is welded in lateral actuator 2, and cross force is transferred on half wheel pair 8 by pass force crossly bar 7.Two
/ mono- wheel is cut into two and Ban wheels pair to 8, by a complete wheel to equalization, and is turned to the connection simulation of longitudinally connected bar by wheel
To frame, wheel is respectively welded at two-wheeled axis center to longitudinally connected bar.Rigid distribution beam 4 it is vertical and it is symmetrically placed in two two/
One wheel on 8, and by be welded and fixed prevent experiment during rigid 4 displacement of distribution beam transfinite, 4 top of rigid distribution beam is set
It is equipped with the recessed grain that size is slightly larger than 3 lower part start head of vertical actuator, when ensureing that start head is put in groove center, groove inner wall
There are the gap of 3-5cm between start head, groove is interior to be arranged rigid roller 10, ensures that 3 bottom of vertical actuator passes through rigidity
Idler wheel 10 is contacted with rigid distribution beam 4；Arch upward 4 bottom of rigid distribution beam 3cm upwards, and arch upward edge setting arc-shaped transition, with
Its downwarp contact wheel axis when vertical actuator 3 loads is prevented, and arc-shaped transition is set to prevent stress in edge of arching upward
It concentrates.
By adjusting the height of crossbeam 11 during experiment, it is suitable for different railway pavement structures or actuator.Using
Multiple actuator linkages are, it can be achieved that different in train travelling process take turns the dynamic load under.Ruler is set in rigid distribution beam 4
The very little groove slightly larger than 3 bottom size of vertical actuator, to prevent vertical actuator 3, vertically and horizontally displacement is super during the test
Limit.As shown in Figure 1, shown in Figure 5, rectangular recessed slightly larger than 3 bottom size of vertical actuator in 4 middle part setting size of rigid distribution beam
Slot, when ensureing that start head is put in groove center, there are the gaps of 3cm-5cm between groove inner wall and start head.Rigidity distribution
4 bottom of beam arch 3cm, to prevent its downwarp contact pass force crossly bar 7 when vertical actuator loads；And it is set in edge of arching upward
Arc-shaped transition is set to prevent stress concentration.As shown in Figure 1, shown in Figure 5,4 bottom of rigid distribution beam is when leaving wheel pair cross-section contact surface
Arch up 3cm, and arc-shaped transition is arranged in edge of arching upward.The power of lateral actuator 2 is transferred to two by pass force crossly bar 7/
One wheel acts on track structure on 8.As shown in figures 1-4, four pass force crosslies are set in 2 bottom of lateral actuator
Bar 7 is vertical with the pass force crossly bar 7 of half wheel pair fixed after being fixed with one piece of iron plate.Horizontal fixture 5 passes through a diameter of 30mm
Spacing be 150mm~200mm three row's bolts be fixed on diagonal brace 12.As shown in Figure 1, horizontal fixture 5 passes through diameter
It is fixed on diagonal brace 12 for three row's bolts of 30mm.The spacing that vertical fixture 6 passes through a diameter of 30mm is the symmetrical cloth of 150mm
The two rows of bolts set are fixed on crossbeam 11.As shown in Figure 1 and Figure 4, vertical fixture 6 is by the spacing of a diameter of 30mm
Two rows of bolts that 150mm is arranged symmetrically are fixed on crossbeam 11.Lateral actuator 2 is fixed by vertical fixture 6 and level
Device 5 is jointly fixed.As shown in figures 1-4, lateral actuator 2 is by being bolted to 5 He of horizontal fixture of diagonal brace 12
The vertical fixture 6 for being bolted to crossbeam 11 is jointly fixed, and 6 lower part of vertical fixture is welded to connect with actuator.
Rigid roller 10 is arranged in the bottom of vertical actuator 3, to adapt to the load due to lateral actuator 2 to 3 position of vertical actuator
Influence.As shown in Fig. 2, being provided with rigid roller 10 in the bottom of vertical actuator 3.It is put in 4 vertical symmetry of rigid distribution beam
Be placed on half wheel pair 8, and by be welded and fixed prevent experiment during rigid 4 displacement of distribution beam transfinite.Such as Fig. 1,3,4
It is shown, rigid distribution beam 4 of simulating that be respectively perpendicular symmetrically placed on 8 pairs of two groups of half wheels pair of bogie a piece of.By one
A complete wheel is cut into two groups of half wheels pair 8 to equalization, and connects simulation bogie by longitudinally connected bar 9.As Fig. 1~
It placed two groups of half wheels pair 8 shown in 4, on rail, be apart bullet train inflexible wheel base, and pass through longitudinally connected bar 9
Connection simulation bogie.
Cross force is reached wheel pair by lateral actuator 2 by pass force crossly bar 7, and wherein pass force crossly bar 7 divides for two parts,
A portion is one block of steel plate and the transmission rod front end that four steel cylinders are welded, and another part is a steel circle
Cylinder transmission rod end.Transmission rod front end is welded by one block of steel plate and four steel cylinders, adjacent two cylinders
Spacing is 15cm, and a diameter of 5cm of four steel cylinders, length 2m, four steel cylinder one end are symmetrically welded in cross
To the start head of actuator 2, the other end is symmetrically welded in one block of steel plate, and the size of steel plate is 30cm × 30cm × 4cm.Transmission rod
End is a steel cylinder, and a diameter of 10cm, length will make axis joint of the one end just with wheel pair, another
End and steel plate center weld.
High-speed railway wheel track, which hangs down when cross force coupling loading simulator can simulate train actual motion simultaneously, to be acted on
The vertical force and cross force of track structure so that test result is more bonded reality.By a complete wheel to being cut along central axes
Into two, with rod piece connect two half wheels pair 8, and make wheelbase be standard axle away from, to simulate high-speed train bogie, hang down
Wheel pair is transferred to by distribution beam to power, cross force is transferred to wheel pair by pass force crossly bar 7, can thus simulate train reality
The effect of vertical force and cross force to track structure in the operation of border.3 lower part of vertical actuator is placed in the groove of rigid distribution beam 4
In, rigid roller is set between the two, vertical actuator 3 is allowed to generate limited movement to adapt to due to lateral actuator 2
Load the influence to 3 position of vertical actuator.Arch upward 4 bottom of rigid distribution beam 3cm upwards, and arch upward edge setting arc mistake
It crosses, to prevent its downwarp contact wheel axis when vertical actuator 3 loads, and arc-shaped transition is set to prevent in edge of arching upward
Stress concentration.Mounting height can be freely adjusted, preset dynamic load time-histories is inputted to actuator, it thus can be to difference
Track structure form loaded.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of high-speed railway wheel track hang down cross force couple loading simulator, including reaction frame (1) and be in the counter-force
The high speed railway track model configuration of frame (1) bottom,
It is characterized in that,
It is acted on when being equipped between the reaction frame (1) and high speed railway track model configuration for simulating high ferro train actual motion
Track is acted in the vertical force application mechanism of the track of the vertical force of track structure and for simulating high ferro train actual motion when
The track transverse direction force application mechanism of the cross force of structure,
The vertical force application mechanism of track and track transverse direction force application mechanism are simulated by the bogie for simulating high ferro train bogie
Mechanism is acted on to high speed railway track model configuration；
The bogie simulation mechanism includes two groups and is mounted on the track of high speed railway track model configuration for simulating high ferro
Train bogie simultaneously prevents the half wheel that the track in high speed railway track model configuration rolls to (8), vertical and symmetrical
Be fixed in the half wheel to for uniformly transferring upper load on (8) rigid distribution beam (4) and divide along two group two
One of wheel to the cloth set direction of (8) connect two groups described in half wheel to (8) for half wheel described in making two groups to (8)
It fixes in groups and uniformly transfers the wheel of load to longitudinally connected bar (9)；
The track transverse direction force application mechanism includes being fixed in the reaction frame (1) along the transverse direction of high speed railway track model configuration
The lateral actuator (2) on diagonal brace (12) and for uniformly applying from cross force to bogie simulation mechanism is described laterally to make
Dynamic device (2) is fixed on by horizontal fixture (5) on the diagonal brace (12) of the reaction frame (1), the transverse direction actuator (2) with
It is equipped between the crossbeam (11) of the reaction frame (1) for lateralling secure the lateral start along the lateral actuator (2)
The vertical fixture (6) of device (2)；The start head of the transverse direction actuator (2) is connected to described two by pass force crossly bar (7)
/ mono- wheel is on (8), the transverse direction actuator (2), the pass force crossly bar (7) and the half wheel are same to (8)
Axis is arranged.
2. high-speed railway wheel track according to claim 1 hangs down, cross force couples loading simulator, which is characterized in that
On the vertical and symmetrically placed semicircle wheel in the half wheel to (8) of rigidity distribution beam (4), and pass through weldering
Fixation is connect, to prevent described rigid distribution beam (4) displacement during experiment from transfiniting.
3. high-speed railway wheel track according to claim 1 hangs down, cross force couples loading simulator, which is characterized in that
The pass force crossly bar (7) include the transmission rod front end (13) that is welded by one block of steel plate and four steel cylinders with
And the transmission rod end (14) being made of a steel cylinder.
4. high-speed railway wheel track according to claim 1 hangs down, cross force couples loading simulator, which is characterized in that
The vertical force application mechanism of the track includes vertically being fixed on the crossbeam (11) of reaction frame (1) and vertical high-speed iron rail
Road model configuration is used to uniformly apply to bogie simulation mechanism the vertical actuator (3) of vertical force,
The start head of the vertical actuator (3) is placed in the groove that described rigid distribution beam (4) upper surface opens up,
It is equipped between the start head and bottom portion of groove of the vertical actuator (3) for making the vertical actuator (3) have
The movement of limit is to adapt to the rigidity of influence of the load due to the lateral actuator (2) to vertical actuator (3) position
Idler wheel (10),
The start head bottom of the vertical actuator (3) is contacted by the rigid roller (10) with the rigid distribution beam (4).
5. high-speed railway wheel track according to claim 4 hangs down, cross force couples loading simulator, which is characterized in that
The groove depth of the groove is more than the spacing between the start head and the slot bottom of groove of the vertical actuator (3), to prevent
Start head is deviate from out of groove.
6. high-speed railway wheel track according to claim 4 hangs down, cross force couples loading simulator, which is characterized in that
There are the gaps of 3cm-5cm between the start head and the groove sidewall of groove of the vertical actuator (3), to ensure described hang down
Only have bottom to actuator (3) to contact with the rigid distribution beam (4) by the rigid roller (10).
7. high-speed railway wheel track according to claim 6 hangs down, cross force couples loading simulator, which is characterized in that
Arch upward 1cm-5cm upwards for described rigidity distribution beam (4) bottom, and edge of arching upward is arranged for preventing it in the vertical work
Downwarp contact wheel axis and the arc-shaped transition for preventing stress concentration when dynamic device (3) load.
8. high-speed railway wheel track according to any one of claim 1 to 7 hangs down, cross force couples loading simulator, special
Sign is,
The crossbeam (11) of the reaction frame (1) is equipped with the lifting lug for lifting the reaction frame (1)；
The column of the reaction frame (1) is the crossbeam (11) of adjustable for height telescopic column or the reaction frame (1) in column
Upper height is adjustable.
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| CN107917817B (en) * | 2017-10-25 | 2024-01-26 | 西南交通大学 | Wheel rail rolling behavior simulation test bed |
| CN108444685B (en) * | 2018-03-15 | 2023-11-28 | 中南大学 | High-speed railway wheel rail vertical and horizontal force coupling loading simulation device |
| CN109297698A (en) * | 2018-11-23 | 2019-02-01 | 中南大学 | A kind of large scale structure fatigue test loading device |
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