CN209024904U - Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator - Google Patents
Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator Download PDFInfo
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- CN209024904U CN209024904U CN201821722639.0U CN201821722639U CN209024904U CN 209024904 U CN209024904 U CN 209024904U CN 201821722639 U CN201821722639 U CN 201821722639U CN 209024904 U CN209024904 U CN 209024904U
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Abstract
The utility model relates to high-speed railway modelling technique field, especially a kind of temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator.It includes vertical reaction frame and the high speed railway track model configuration below the vertical reaction frame；The utility model relate to for high speed railway track-roadbed temperature load effect under vertical, horizontal and vertical dynamic analysis reliable weighted platform is provided, for disclose track structure damage and failure time dependent feature experimental basis is provided.
Description
Technical field
The utility model relates to high-speed railway modelling technique field, high iron tyre under especially a kind of temperature load effect
The vertical transverse and longitudinal couple of force of rail closes loading simulator.
Background technique
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 become increasingly conspicuous, and high-speed railway dynamics Design is still at present
The theoretical system of not formed system, existing design method have 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 formation China with independent intellectual property rights
High-speed railway building technology system have great practical significance, for China express railway construction with sustainable development provide it is important
Technical support.
Currently, high-speed railway dynamic load simulator is only able to satisfy vertical power load, and bullet train is at runtime
Since serpentine locomotion can apply Lateral Force to rail, since acceleration, deceleration and the brake operation in operational process can be given
Rail applies longitudinal force effect, since ambient temperature variation can apply the effect of temperature load to rail and track structure,
Also very important influence can be caused to the safety of track-structure and train operation, existing simulator has ignored track
The active force in other directions that structure is born during actual operation influences, and cannot completely study track dynamic characteristic, pass through
Track-roadbed time dependent behavior of this actual size model simulation reflection has its limitation.
Utility model content
The vertical transverse and longitudinal couple of force of lower high-speed rail wheel track, which is acted on, the purpose of this utility model is to provide a kind of temperature load closes load
Simulator.
The purpose of this utility model is achieved through the following channels: a kind of vertical transverse and longitudinal of lower high-speed rail wheel track of temperature load effect
Loading simulator is closed to couple of force, it includes vertical reaction frame and the high speed railway track below the vertical reaction frame
Model configuration；
Work when for simulating high-speed rail train actual motion is equipped between vertical reaction frame and high speed railway track model configuration
The vertical force application mechanism of the track of vertical force for track structure, for simulating high-speed rail train actual motion when act on track knot
The track transverse direction force application mechanism of the cross force of structure and for simulating high-speed rail train actual motion when, act on the longitudinal direction of track structure
The track longitudinal direction force application mechanism of power and when for simulating high-speed rail train actual motion external influence in longitudinal temperature of track structure
Spend the force application mechanism of load；
The vertical force application mechanism of track, track transverse direction force application mechanism and track longitudinal direction force application mechanism pass through for simulating high-speed rail column
The bogie simulation mechanism of vehicle bogie is acted on to high speed railway track model configuration.
Further, the bogie simulation mechanism includes using on two groups of tracks for being mounted on high speed railway track model configuration
In simulation high-speed rail train bogie and prevent the half wheel rolled in the track of high speed railway track model configuration to, it is vertical
And half wheel is symmetrically fixed in the wheel of two groups of upper girder steel for uniformly transferring upper load, connection half wheels pair
To longitudinally connected bar.
Further, the track transverse direction force application mechanism is to be respectively fixed with a diagonal brace in vertical reaction frame both ends angle,
It is fixed with horizontal fixture on one of diagonal brace, the end horizontal direction of horizontal fixture is equipped with for bogie
Simulation mechanism uniformly applies the lateral actuator of cross force, and the actuation head of lateral actuator is connected to two points by pass force crossly bar
One of wheel to upper, three is coaxially distributed.
Further, track longitudinal direction force application mechanism includes the institute for uniformly applying longitudinal force to bogie simulation mechanism
Longitudinal actuator is stated, which is fixed on the vertical reaction frame by longitudinal diagonal brace, the actuation of longitudinal actuator
Head is connected to half wheel to upper by longitudinal direction transmission rod, and three is coaxially distributed.
Further, the force application mechanism of the longitudinal temperature load is installed on roadbed, and longitudinal reaction frame is bolted
In on roadbed, I-steel force transmitting board, longitudinal reaction frame and rail are provided between the track pedestal where longitudinal reaction frame and track
It is evenly arranged with several springs between road pedestal, force sensor is set between longitudinal reaction frame and I-steel force transmitting board, is indulged
To jack and dynamometer.
Further, the vertical force application mechanism of the track includes the crossbeam for being vertically fixed in vertical reaction frame, and vertical
In high speed railway track model configuration for uniformly applying the vertical actuator of vertical force, vertical actuation to bogie simulation mechanism
The actuation head of device is placed in the groove that girder steel upper surface opens up.
The groove depth of the groove is greater than the actuation head and groove of the vertical actuator as a further optimization of the solution,
Slot bottom between spacing, there are the gaps of 3cm-5cm between the actuation head of the vertical actuator and the groove sidewall of groove.
Vertical fixture is installed between the lateral actuator and crossbeam as a further optimization of the solution,.
The utility model temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed railway wheel track and closes loading simulator, Ke Yitong
When simulation train actual motion when act on vertical force, cross force and the longitudinal force of track structure and the longitudinal temperature lotus in the external world
It carries, and cross force, vertical force and longitudinal force combine the active force for simulating other directions, while in simulation longitudinal temperature load
Under force application mechanism effect, coupled with lateral, vertical and longitudinal force, so that test result is more bonded reality.Bogie analog machine
Structure simulates high-speed train bogie, and vertical force, cross force and longitudinal force are transferred to bogie simulation mechanism, can simulate train reality
The effect of vertical force, cross force and longitudinal force to track structure in the operation of border.Longitudinal temperature load force application mechanism can be set not
With the elasticity modulus of the spring of the number of plies, simulate monolith track structure temperature change and top-down temperature gradient.It is logical
The mounting height of simulator can freely be adjusted by crossing vertical reaction frame, to the vertical force application mechanism of track and track transverse direction force machine
Structure and track longitudinal direction force application mechanism input preset dynamic load time-histories, can add to different track structure forms
It carries.For high speed railway track-roadbed, vertical, horizontal and vertical dynamic analysis provides reliable load under temperature load effect
Platform provides experimental basis to disclose track structure damage and failure time dependent feature.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram that the vertical transverse and longitudinal couple of force of the utility model high-speed railway wheel track closes loading simulator；
Fig. 2 is that the utility model high-speed railway wheel track hangs down transverse and longitudinal couple of force conjunction loading simulator along route longitudinal direction section
One of structural schematic diagram；
Fig. 3 is that the utility model high-speed railway wheel track hangs down transverse and longitudinal couple of force conjunction loading simulator along route longitudinal direction section
Second structural representation；
Fig. 4 is the plan structure signal that the vertical transverse and longitudinal couple of force of the utility model high-speed railway wheel track closes loading simulator
Figure；
Fig. 5 is the stereochemical structure signal that the vertical transverse and longitudinal couple of force of the utility model high-speed railway wheel track closes loading simulator
Figure；
Fig. 6 is the steel beam structure schematic diagram in the utility model;
In figure:
1, vertical reaction frame；2, lateral actuator；3, vertical actuator；4, girder steel；5, horizontal fixture；6, vertical solid
Determine device；7, pass force crossly bar；8, half wheel pair；9, longitudinally connected bar；10, longitudinal transmission rod；11, crossbeam；12, tiltedly
Support；13, longitudinal jack；14, dynamometer；15, force snesor；16, longitudinal actuator；17, spring；18, I-steel force transmitting board；
19, longitudinal reaction frame;20, roadbed;21, track pedestal.
Specific embodiment
The utility model temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator, it includes vertical
Reaction frame 1 and the high speed railway track model configuration below the vertical reaction frame 1；
Work when for simulating high-speed rail train actual motion is equipped between vertical reaction frame 1 and high speed railway track model configuration
The vertical force application mechanism of the track of vertical force for track structure, for simulating high-speed rail train actual motion when act on track knot
The track transverse direction force application mechanism of the cross force of structure and for simulating high-speed rail train actual motion when, act on the longitudinal direction of track structure
The track longitudinal direction force application mechanism of power and when for simulating high-speed rail train actual motion external influence in longitudinal temperature of track structure
Spend the force application mechanism of load；
The vertical force application mechanism of track, track transverse direction force application mechanism and track longitudinal direction force application mechanism pass through for simulating high-speed rail column
The bogie simulation mechanism of vehicle bogie is acted on to high speed railway track model configuration.
The bogie simulation mechanism includes on two groups of tracks for being mounted on high speed railway track model configuration for simulating
High-speed rail train bogie simultaneously prevents the half wheel rolled in the track of high speed railway track model configuration to 8, is vertical and right
Claim to be fixed in half wheel on 8 for uniformly transfer the girder steel 4 of upper load, two groups of half wheels of connection to 8 wheel
To longitudinally connected bar 9.
The track transverse direction force application mechanism, be respectively fixed with a diagonal brace 12 in vertical 1 both ends angle of reaction frame, wherein
It is fixed with horizontal fixture 5 on one diagonal brace 12, the end horizontal direction of horizontal fixture 5 is equipped with for bogie
Simulation mechanism uniformly applies the lateral actuator 2 of cross force, and the actuation head of lateral actuator 2 is connected to by pass force crossly bar 7
To on 8, three is coaxially distributed half wheel.
Track longitudinal direction force application mechanism includes the longitudinal direction for uniformly applying longitudinal force to bogie simulation mechanism
Actuator 16, the longitudinal direction actuator 16 are fixed on the vertical reaction frame 1 by longitudinal diagonal brace, the actuation of longitudinal actuator 16
Head is connected to half wheel on 8 by longitudinal transmission rod 10, and three is coaxially distributed.
The force application mechanism of the longitudinal temperature load is installed on roadbed 20, and longitudinal reaction frame 19 is fixed by bolts in road
On base 20, I-steel force transmitting board 18, longitudinal reaction frame are provided between the track pedestal 21 where longitudinal reaction frame 19 and track
It is evenly arranged with several springs 17 between 19 and track pedestal 21, is arranged between longitudinal reaction frame 19 and I-steel force transmitting board 18
Force sensor 15, longitudinal jack 13 and dynamometer 14.
The vertical force application mechanism of track includes the crossbeam 11 for being vertically fixed in vertical reaction frame 1, and perpendicular to height
Fast railroad track model configuration is used to uniformly apply to bogie simulation mechanism the vertical actuator 3 of vertical force, vertical actuator 3
Actuation head be placed in the groove that 4 upper surface of girder steel opens up.
As shown in Figure 1, the high-speed railway wheel track of the present embodiment hangs down, cross force couples loading simulator, including vertical counter-force
Frame 1 and high speed railway track model configuration in vertical 1 bottom of reaction frame, vertical reaction frame 1 and high speed railway track mould
The track for the vertical force for acting on track structure when being equipped between quasi- structure for simulating high-speed rail train actual motion vertically exerts a force
Mechanism, for simulating high-speed rail train actual motion when act on track structure cross force track transverse direction force application mechanism and be used for
The track longitudinal direction force application mechanism of the longitudinal force of track structure is acted on when simulating high-speed rail train actual motion and for simulating height
External influence is in the force application mechanism of the longitudinal temperature load of track structure when iron train actual motion.The utility model temperature load
It acts on the vertical transverse and longitudinal couple of force of lower high-speed railway wheel track and closes loading simulator, acted on when can simulate train actual motion simultaneously
Vertical force, cross force and the longitudinal force of track structure and the longitudinal temperature load in the external world, and cross force, vertical force and longitudinal direction
Power combines the active force for simulating other directions, while under the force application mechanism effect of simulation longitudinal temperature load, and lateral, vertical
It is coupled with longitudinal force, so that test result is more bonded reality.Bogie simulation mechanism simulates high-speed train bogie, vertical
Power, cross force and longitudinal force are transferred to bogie simulation mechanism, can simulate vertical force in train actual motion, cross force and indulge
Effect to power to track structure.The elasticity modulus of different layers of springs, mould can be set in longitudinal temperature load force application mechanism
Draw up monolith track structure temperature change and top-down temperature gradient.Mould can be freely adjusted by vertical reaction frame
The mounting height of quasi- device, inputs to the vertical force application mechanism of track and track transverse direction force application mechanism and track longitudinal direction force application mechanism
Preset dynamic load time-histories can load different track structure forms.It is high speed railway track-roadbed in temperature
Vertical under load action, horizontal and vertical dynamic analysis provides reliable weighted platform, to disclose track structure damage and failure
Time dependent feature provides experimental basis.
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-speed rail train bogie and preventing the rail in high speed railway track model configuration on the track of rail road model configuration
The half wheel that road rolls to 8, it is vertical and be symmetrically fixed in half wheel on 8 for uniformly transferring the steel of upper load
Beam 4 and two groups of half wheels are connected to 8 for making two groups of half wheels to 8 cloth set direction along two groups of half wheels
It is fixed in groups to 8 and uniformly transfers 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, track transverse direction force application mechanism includes along high speed railway track
The transverse direction of model configuration is fixed on the diagonal brace 12 of vertical reaction frame 1 and for uniformly applying cross force to bogie simulation mechanism
Lateral actuator 2.Lateral actuator 2 is fixed on the diagonal brace 12 of vertical reaction frame 1 by horizontal fixture 5.Laterally make
It is equipped between dynamic device 2 and the crossbeam 11 of vertical reaction frame 1 and laterallys secure hanging down for lateral actuator 2 for transversely actuator 2
Straight fixed device 6.The actuation head of lateral actuator 2 is connected to half wheel on 8 by pass force crossly bar 7.Lateral actuation
Device 2, pass force crossly bar 7 and half wheel are coaxially arranged to 8.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, track longitudinal direction force application mechanism includes along high speed railway track
The longitudinal direction of model configuration is fixed on vertical reaction frame 1 and makees for uniformly applying the longitudinal of longitudinal force to bogie simulation mechanism
Dynamic device 16, longitudinal actuator 16 are fixed on vertical reaction frame 1 by diagonal brace, to guarantee that it is enough steady that longitudinal actuator 16 has
Qualitative, the actuation head of longitudinal actuator 16 passes through longitudinal transmission rod 10 and is connected to half wheel on 8.Longitudinal actuator 16 with
Longitudinal transmission rod 10, transverse connecting rod 9 and half wheel are coaxially arranged to 8.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, the force application mechanism of longitudinal temperature load includes along high-speed iron
Longitudinal jack 13, dynamometer 14, force snesor 15, spring 17 and I-steel force transmitting board 18 of rail road model configuration and
Longitudinal reaction frame 19, it is three layers that spring 17, which divides, if the elasticity modulus having the same of different layers spring 17, can simulate monolith rail
The temperature load of road structure along longitudinal direction can be with analog orbit structure certainly if different layers spring 17 has different elasticity modulus
Upper and lower temperature gradient, the use I-steel of I-steel force transmitting board 18 as force transmitting board, with guarantee 17 uniform force of spring and
Longitudinal effect of jack 13 is lower to have enough rigidity, and longitudinal reaction frame 19 is fixed on roadbed by 16 bolts, vertical to guarantee
Enough counter-forces are provided to reaction frame 19.
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 that body is welded and the transmission rod end being made of a steel cylinder.
Shown in as shown in Figure 1, Figure 3 and Figure 4, in the present embodiment, longitudinal transmission rod 10 includes by one block of steel plate and four steel circles
The transmission rod front end that cylinder is welded and the transmission rod end 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 vertical reaction frame 1 and vertical high speed railway track model configuration to bogie simulation mechanism for uniformly applying
The vertical actuator 3 of vertical force.The actuation head of vertical actuator 3 is placed in the groove that 4 upper surface of girder steel opens up.Vertical actuator
3 actuation head bottom is contacted with girder steel 4.
As shown in figure 5, in the present embodiment, the groove depth of groove be greater than vertical actuator 3 actuation head and groove slot bottom it
Between spacing, to prevent actuation head from deviating from out of groove.
As shown in figure 5, there are 3cm-5cm between the actuation head of vertical actuator 3 and the groove sidewall of groove in the present embodiment
Gap, to guarantee that vertical actuator 3 is contacted with girder steel 4.
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 girder steel 1cm-5cm upwards.It arches upward side
It is arranged at edge for preventing its downwarp contact wheel axis and arc-shaped transition for preventing stress from concentrating when vertical actuator 3 loads.
As shown in Figure 1, the crossbeam 11 of vertical reaction frame 1 is equipped with the lifting lug for lifting reaction frame 1 in the present embodiment.
The height on column is adjustable for the crossbeam 11 of height-adjustable telescopic column or reaction frame 1 for the column of vertical reaction frame 1.
When implementation, a kind of vertical transverse and longitudinal couple of force of lower high-speed railway wheel track of temperature load effect is provided and closes loading simulator,
Including vertical reaction frame 1, lateral actuator 2, vertical actuator 3, girder steel 4, lateral actuator horizontal fixture 5 is laterally made
7, two groups of dynamic device vertical fixture 6, pass force crossly bar half wheels are to 8, wheel to longitudinally connected bar 9 and longitudinal transmission rod
10, longitudinal jack 13, dynamometer 14, force snesor 15, longitudinal actuator 16, spring 17, I-steel force transmitting board 18, longitudinal direction are anti-
Power frame 19 etc..Vertical reaction frame 1 includes crossbeam 11, diagonal brace 12 etc..Vertical 3 lower part of actuator is placed in the groove of girder steel 4.Girder steel
4 is vertical and symmetrically placed on one group of half wheel is to 8.Two groups of half wheels are connected between 8 using longitudinally connected bar 9
It connects.Cross force is transferred to half by pass force crossly bar 7 in lateral actuator 2 by 6 lower weld of vertical fixture
Wheel is on 8.Half wheel is cut into two and Ban wheels pair to equalization to 8, by a complete wheel, and by wheel to longitudinally connected bar
Connection simulation bogie, wheel are respectively welded at two-wheeled axis center to longitudinally connected bar.Girder steel 4 is vertical and symmetrically placed in two two
/ mono- wheel on 8, and by be welded and fixed prevent test during the displacement of girder steel 4 transfinite, 4 top of girder steel is provided with size
Slightly larger than the recessed grain of vertical 3 lower part actuation head of actuator, when guaranteeing that actuation head is put in groove center, groove inner wall and actuation head
Between there are the gap of 3-5cm, guarantee that vertical 3 bottom of actuator is contacted with girder steel 4；Arch upward 4 bottom of girder steel 3cm upwards, arches upward
Arc-shaped transition is arranged in edge, to prevent its downwarp contact wheel axis when vertical actuator 3 loads, and sets in edge of arching upward
Arc-shaped transition is set to prevent stress from concentrating.Longitudinal actuator 16 is fixed on vertical reaction frame 1 by diagonal brace, to guarantee longitudinal make
Dynamic device 16 has enough stability, and longitudinal force is transferred to half wheel on 8 by longitudinal transmission rod 10.Longitudinal thousand
Jin top 13 forces in I-steel force transmitting board 18 by longitudinal reaction frame 19, makes 17 uniform stressed of spring, thus analog orbit structure
Temperature change, if the spring 17 of the identical same elasticity modulus of setting different layers, can be become with the temperature of analog orbit structure entirety
Change, it, can be with the top-down temperature gradient of analog orbit structure, I-shaped if the spring 17 of setting different layers dual extension-compression modulus
Steel force transmitting board 18 uses I-steel as force transmitting board, to guarantee 17 uniform force of spring and have under the effect of longitudinal jack 13
Enough rigidity, longitudinal reaction frame 19 are fixed on roadbed by 16 bolts, to guarantee that it is enough anti-that longitudinal reaction frame 19 provides
Power.
By adjusting the height of crossbeam 11 during test, it is suitable for different railway pavement structure or actuator.Using
Multiple actuator linkages are, it can be achieved that different in train travelling process take turns the dynamic load under.It is bigger that size is set on girder steel 4
In the groove of vertical 3 bottom size of actuator, to prevent vertical actuator 3, vertically and horizontally displacement is transfinited during the test.Such as
Shown in Fig. 1, Fig. 5, the square groove that size is slightly larger than vertical 3 bottom size of actuator is set in the middle part of girder steel 4, guarantees actuation head
When being put in groove center, there are the gaps of 3cm-5cm between groove inner wall and actuation head.4 bottom of girder steel arch 3cm, to prevent
Only its downwarp when vertical actuator loads contacts pass force crossly bar 7；And in the edge setting arc-shaped transition that arches upward to prevent from answering
Power is concentrated.As shown in Fig. 1, Fig. 6,4 bottom of girder steel arches up 3cm when leaving wheel pair cross-section contact surface, and sets in edge of arching upward
Set arc-shaped transition.The power of lateral actuator 2 is transferred to half wheel on 8 by pass force crossly bar 7, and then acts on track
In structure.As shown in Fig. 1~5, after four pass force crossly bars 7 are arranged in lateral 2 bottom of actuator and one piece of iron plate is fixed and partly
The pass force crossly bar 7 of wheel pair is vertically fixed.As shown in Figure 1, lateral actuator 2 passes through vertical fixture 6 and horizontal fixed dress
It is common fixed to set 5.As shown in Fig. 1~5,6 lower part of vertical fixture and actuator are welded to connect.It is put in 4 vertical symmetry of girder steel
Half wheel is placed in on 8, and by be welded and fixed prevent test during the displacement of girder steel 4 transfinite.As shown in Fig. 1,3,4,
Two groups of half wheels of bogie are simulated to being respectively perpendicular a piece of girder steel 4 symmetrically placed on 8 pairs.By a complete wheel to equal
Etc. being cut into two groups of half wheels to 8, and pass through longitudinally connected bar 9 connection simulation bogie.As shown in Fig. 1~5, on rail
Two groups of half wheels be placed to 8, be apart bullet train inflexible wheel base, and pass through the connection simulation steering of longitudinally connected bar 9
Frame.As shown in Fig. 2,3,5, longitudinal actuator is fixed on vertical reaction frame 1 by longitudinal diagonal brace.As shown in Fig. 1~5, vertical
It is coaxial with the pass force crossly bar 7 of half wheel pair after being fixed to 16 bottom of actuator setting, four longitudinal transmission rods 10 and one piece of iron plate.
As shown in Fig. 2,3,5, temperature load is passed by longitudinal jack 13, dynamometer 14, force snesor 15, spring 17 and I-steel
Power plate 18 and longitudinal reaction frame 19 are simulated, if the spring 17 of the identical same elasticity modulus of setting different layers, can simulate
The temperature change of track structure entirety can be with analog orbit structure certainly if the spring 17 of setting different layers dual extension-compression modulus
Upper and lower temperature gradient, 17 uniform force of spring and has enough rigidity, I-steel biography under the effect of longitudinal jack 13
Using I-steel as force transmitting board, longitudinal reaction frame 19 is fixed on roadbed power plate 18 by 16 bolts.
Cross force is reached wheel pair by pass force crossly bar 7 by lateral actuator 2, 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 cylindrical bodies
Spacing is 15cm, and the diameter of four steel cylinders is 5cm, and length 2m, four steel cylinder one end are symmetrically welded in cross
To the actuation 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.Power transmission
Bar end is a steel cylinder, and a diameter of 10cm, length will make axis joint of the one end just with wheel pair, another
One end and steel plate center weld.
Longitudinal force is reached wheel pair by longitudinal transmission rod 10 by longitudinal actuator 16, wherein it is two that longitudinal transmission rod 10, which is divided to,
Point, 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
Rounding cylinder transmission rod end.Transmission rod front end is welded by one block of steel plate and four steel cylinders, adjacent two circles
Cylinder spacing is 15cm, and the diameter of four steel cylinders is 5cm, and length 2m, four steel cylinder one end are symmetrically welded
In the actuation head of longitudinal actuator 16, 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, a diameter of 10cm, and length will make axis joint of the one end just with wheel pair,
Its other 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
Vertical force, cross force and the longitudinal force of track structure and the longitudinal temperature load in the external world, and cross force, vertical force and longitudinal direction
Power combines the active force for simulating other directions, while under the force application mechanism effect of simulation longitudinal temperature load, and lateral, vertical
It is coupled with longitudinal force, so that test result is more bonded reality.One complete wheel is cut in half to along central axes, uses rod piece
Two half wheels are connected to 8, and make wheelbase standard axle away to simulate high-speed train bogie, vertical force passes through girder steel
It is transferred to wheel pair, cross force is transferred to wheel pair by pass force crossly bar 7, and longitudinal force passes through longitudinal transmission rod 10 and is transferred to wheel pair,
Temperature load is simulated by the power that I-steel force transmitting board and spring are transferred to overall track structure, can thus simulate train reality
The effect of vertical force, cross force and longitudinal force to track structure under temperature load action in the operation of border.It sets vertical 3 lower part of actuator
In the groove of girder steel 4, vertical actuator 3 is allowed to generate limited movement to adapt to the load due to lateral actuator 2 to vertical
Influence to 3 position of actuator.Arch upward 4 bottom of girder steel 3cm upwards, and arch upward edge setting arc-shaped transition, to prevent it from hanging down
Downwarp contact wheel axis when being loaded to actuator 3, and in the edge setting arc-shaped transition that arches upward to prevent stress from concentrating.It can be certainly
By adjusting mounting height, preset dynamic load time-histories is inputted to actuator, it thus can be to different track structure forms
It is loaded.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art, can be without creative labor in the technical scope disclosed by the utility model
The dynamic change or replacement expected, should be covered within the scope of the utility model.Therefore, the protection model of the utility model
Enclosing be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator, it is characterised in that: it includes
Vertical reaction frame (1) and the high speed railway track model configuration being located at below the vertical reaction frame (1)；
Effect when for simulating high-speed rail train actual motion is equipped between vertical reaction frame (1) and high speed railway track model configuration
In the vertical force application mechanism of the track of the vertical force of track structure, for simulating high-speed rail train actual motion when act on track structure
Cross force track transverse direction force application mechanism and for simulating high-speed rail train actual motion when act on the longitudinal force of track structure
Track longitudinal direction force application mechanism and when for simulating high-speed rail train actual motion external influence in the longitudinal temperature of track structure
The force application mechanism of load；
The vertical force application mechanism of track, track transverse direction force application mechanism and track longitudinal direction force application mechanism for simulating high-speed rail train by turning
It acts on to the bogie simulation mechanism of frame to high speed railway track model configuration.
2. temperature load according to claim 1 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that:
The bogie simulation mechanism includes on two groups of tracks for being mounted on high speed railway track model configuration for simulating high-speed rail
Train bogie simultaneously prevents the half wheel rolled in the track of high speed railway track model configuration to (8), vertical and symmetrical
Be fixed in the half wheel on (8) for uniformly transfer upper load girder steel (4), connection two groups of half wheels pair
(8) wheel is to longitudinally connected bar (9).
3. temperature load according to claim 1 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that:
The track transverse direction force application mechanism, be respectively fixed with a diagonal brace (12) in vertical reaction frame (1) both ends angle, wherein
Be fixed with horizontal fixture (5) on one diagonal brace (12), the end horizontal direction of horizontal fixture (5) be equipped with for
Bogie simulation mechanism uniformly applies the lateral actuator (2) of cross force, and the actuation head of lateral actuator (2) passes through pass force crossly
Bar (7) is connected to half wheel on (8), and three is coaxially distributed.
4. temperature load according to claim 1 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that:
Track longitudinal direction force application mechanism includes longitudinal actuation for uniformly applying longitudinal force to bogie simulation mechanism
Device (16), the longitudinal direction actuator (16) are fixed on the vertical reaction frame (1) by longitudinal diagonal brace, longitudinal actuator (16)
Actuation head passes through longitudinal transmission rod (10) and is connected to half wheel on (8), and three is coaxially distributed.
5. temperature load according to claim 1 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that:
The force application mechanism of the longitudinal temperature load is installed on roadbed (20), and longitudinal reaction frame (19) is fixed by bolts in road
On base (20), I-steel force transmitting board (18) are provided between the track pedestal (21) where longitudinal reaction frame (19) and track, are indulged
To being evenly arranged with several springs (17), longitudinal reaction frame (19) and I-steel between reaction frame (19) and track pedestal (21)
Force sensor (15), longitudinal jack (13) and dynamometer (14) are set between force transmitting board (18).
6. temperature load according to claim 1 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that:
The vertical force application mechanism of track includes the crossbeam (11) for being vertically fixed in vertical reaction frame (1), and perpendicular to height
Fast railroad track model configuration is used to uniformly apply to bogie simulation mechanism the vertical actuator (3) of vertical force, vertical actuation
The actuation head of device (3) is placed in the groove that girder steel (4) upper surface opens up.
7. temperature load according to claim 6 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
Be characterized in that: the groove depth of the groove is greater than the spacing between the actuation head of the vertical actuator (3) and the slot bottom of groove, institute
State between the actuation head of vertical actuator (3) and the groove sidewall of groove that there are the gaps of 3cm-5cm.
8. temperature load according to claim 3 acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator,
It is characterized in that: vertical fixture (6) being installed between the transverse direction actuator (2) and crossbeam (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722639.0U CN209024904U (en) | 2018-10-23 | 2018-10-23 | Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821722639.0U CN209024904U (en) | 2018-10-23 | 2018-10-23 | Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137647A (en) * | 2018-10-23 | 2019-01-04 | 中南大学 | Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator |
| CN110146309A (en) * | 2019-06-27 | 2019-08-20 | 东北大学 | A kind of wheel track testing stand based on wheel-to-rail contact |
| CN113237481A (en) * | 2021-05-08 | 2021-08-10 | 西南交通大学 | Device and method for simulating temperature gradient fatigue effect of ballastless track of high-speed railway |
-
2018
- 2018-10-23 CN CN201821722639.0U patent/CN209024904U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137647A (en) * | 2018-10-23 | 2019-01-04 | 中南大学 | Temperature load acts on the vertical transverse and longitudinal couple of force of lower high-speed rail wheel track and closes loading simulator |
| CN109137647B (en) * | 2018-10-23 | 2023-11-24 | 中南大学 | High-speed railway wheel rail vertical and horizontal force coupling loading simulation device under temperature load effect |
| CN110146309A (en) * | 2019-06-27 | 2019-08-20 | 东北大学 | A kind of wheel track testing stand based on wheel-to-rail contact |
| CN113237481A (en) * | 2021-05-08 | 2021-08-10 | 西南交通大学 | Device and method for simulating temperature gradient fatigue effect of ballastless track of high-speed railway |
| CN113237481B (en) * | 2021-05-08 | 2022-01-28 | 西南交通大学 | Device and method for simulating temperature gradient fatigue effect of ballastless track of high-speed railway |
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