CN208636048U - A kind of loading device based on the test of car body quasistatic compression - Google Patents
A kind of loading device based on the test of car body quasistatic compression Download PDFInfo
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- CN208636048U CN208636048U CN201820751421.1U CN201820751421U CN208636048U CN 208636048 U CN208636048 U CN 208636048U CN 201820751421 U CN201820751421 U CN 201820751421U CN 208636048 U CN208636048 U CN 208636048U
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Abstract
The utility model discloses a kind of loading devices based on the test of car body quasistatic compression, including vehicle body strength test stand, cross beam support frame, crossbeam supporting plate, load crossbeam, only counter-force crossbeam, longitudinal tie；Load crossbeam and only counter-force crossbeam are respectively arranged the outside in two headwalls of car body and are connected with cross beam support frame by crossbeam supporting plate respectively, and cross beam support erection is placed on the lead screw of vehicle body strength test stand；Load crossbeam passes through sliding connection structure with only counter-force crossbeam and connects with respect to crossbeam supporting plate slip；The both ends of longitudinal tie are separately connected load crossbeam and only counter-force crossbeam, form closed framework structure；It loads crossbeam and is equipped with servo hydraulic cylinder, only counter-force crossbeam is equipped with the only counter-force lead screw coaxially arranged with servo hydraulic cylinder.This programme uses the relative equilibrium principle and closed framework structure of power, has very high intensity and convenient and fast assembled in situ condition, improves test efficiency suitable for different test car bodies without huge ground reaction force holder structure.
Description
Technical field
The utility model relates to rail vehicle experimental technique fields, more particularly to a kind of car body quasistatic compression that is based on to test
Loading device.
Background technique
With the fast development of rail traffic, there is the design of diversification, high-speeding to need the various parts structure of vehicle
Ask, main load bearing component of the car body as vehicle, be faced in Design and manufacturing process lightweight, high intensity, structure is complicated change
Many difficult points.Meanwhile the intensity to car body, rigidity being needed to carry out a large amount of verification experimental verification to support vehicle after new model trial-production
Design.The quasi-static intensity of car body, stiffness test are most important theories support and strength check methods in car body verification experimental verification.Vehicle
Body semi-static load point is in the very high position of the vertical height of vehicle end, in longitudinal loading procedure, because of loaded load, loading force
Arm is larger, if stopping counter-force loading method using tradition, the counter-force basis of super large need to be designed, in test period and economy etc.
Aspect is unable to satisfy, therefore is badly in need of designing a kind of semi-static load test requirements document of loading device to meet body construction.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of loading device based on the test of car body quasistatic compression,
For carrying out the car body quasistatic compression experimental study of the rail vehicles such as high-speed EMUs, intercity EMU, railcar,
In order to achieve the above object, the utility model provides following technical solution:
It is a kind of based on car body quasistatic compression test loading device, comprising: vehicle body strength test stand, cross beam support frame,
Crossbeam supporting plate, load crossbeam, only counter-force crossbeam, longitudinal tie；Wherein,
The load crossbeam is used to be arranged in the outside of the first headwall of car body, and the only counter-force crossbeam is for being arranged in institute
The outside of the second headwall of car body is stated, the lower section and the lower section for stopping counter-force crossbeam of the load crossbeam are respectively by described
Crossbeam supporting plate is connected with the cross beam support frame, and the cross beam support erection is placed on the lead screw of the vehicle body strength test stand
Side；
The crossbeam supporting plate is equipped with sliding connection structure, and the load crossbeam and the only counter-force crossbeam can pass through institute
The front-rear direction that the sliding relatively described crossbeam supporting plate of connection structure is stated along the car body slides；
The longitudinal tie has multiple and is arranged symmetrically on the car body left and right directions, the two of each longitudinal tie
End is respectively fixedly connected in the load crossbeam and the only counter-force crossbeam；
The load crossbeam is equipped with the servo hydraulic cylinder for applying pressure to first headwall, the servo hydraulic cylinder
It is connected with hydraulic servo loading system, the only counter-force crossbeam is equipped with the only counter-force lead screw for being used to support second headwall, institute
The axis for stating servo hydraulic cylinder is overlapped with the axis of the only counter-force lead screw.
Preferably, in above-mentioned loading device, the sliding connection structure includes oval pore structure and slippingly runs through
In the connecting column of the oval pore structure.
Preferably, in above-mentioned loading device, the slotted hole structure setting is in the load crossbeam and described only anti-
On power crossbeam,
And/or
The slotted hole structure setting is on the crossbeam supporting plate.
Preferably, in above-mentioned loading device, the connecting column includes connecting stud and is connected to the connecting stud end
The clamping nut in portion.
Preferably, multiple vertical support rods are arranged with below each longitudinal tie, the vertical support rod
Lower end is connected to the vehicle body strength test stand, and the upper end of the vertical support rod is provided with for longitudinal tie described in support
Longitudinal tie bracket, the longitudinal tie can be along itself axially opposing longitudinal tie bracket slidings.
Preferably, in above-mentioned loading device, the upper end of the vertical support rod is provided with for adjusting longitudinal drawing
The fine tuning structure of the height of pole support.
Preferably, each longitudinal tie includes more and is sequentially connected fixed segmentation pull rod, the segmentation pull rod
End is equipped with flange seat and stiffening plate.
Preferably, the end of the servo hydraulic cylinder is provided with the loading head assembly for abutting first headwall, institute
It states and force sensor is set between loading head assembly and the servo hydraulic cylinder, the force snesor is connected to the hydraulic servo
Loading system.
Preferably, the quantity of the longitudinal tie is two, and two longitudinal tie parallel arrangements are in the car body
The left and right sides, the quantity of the servo hydraulic cylinder are two, and two servo hydraulic cylinders are right on the car body left and right directions
Claim arrangement.
Preferably, the cross beam support frame is set to the car body strength by bottom support beam and lead screw locking bed
On the lead screw of testing stand.
Loading device provided by the utility model based on the test of car body quasistatic compression, comprising: vehicle body strength test stand,
Cross beam support frame, crossbeam supporting plate, load crossbeam, only counter-force crossbeam, longitudinal tie；Wherein, crossbeam and only counter-force crossbeam point are loaded
It is not arranged in the outside of two headwalls of car body and cross beam support frame is connected with by crossbeam supporting plate respectively, cross beam support erection is placed in
On the lead screw of vehicle body strength test stand；Load crossbeam and only counter-force crossbeam pass through sliding connection structure can slide with respect to crossbeam supporting plate
Move connection；The both ends of longitudinal tie are separately connected load crossbeam and only counter-force crossbeam, form closed framework structure；Load crossbeam
Equipped with servo hydraulic cylinder, only counter-force crossbeam is equipped with the only counter-force lead screw coaxially arranged with servo hydraulic cylinder.
When test, car body is fixed on to the center of closed framework structure, car body is applied using servo hydraulic cylinder and is compressed
Load compresses car body with the only counter-force lead screw of the other side jointly, and under reaction force, longitudinal tie is by identical as compressive load
The pulling force effect of size, to complete the application of load.Sliding connection structure exists for discharging load crossbeam with only counter-force crossbeam
Displacement along longitudinal direction in loading procedure guarantees that the compressive load of car body can uniformly apply.
The utility model uses the relative equilibrium principle and closed framework structure of power, has in structure very high strong
Degree and easily assembled in situ condition can be adapted to different test car bodies without huge ground reaction force holder structure, improve
The efficiency of test；Load source can realize the uniform application of car body semi-static load load using servo hydraulic cylinder, can be accurately
Control the parameters such as power and loading velocity, the load deflection of load；Loading system use closed-loop control, can using power control or
Displacement control mode is loaded to vehicle and is realized the monitoring and acquisition of parameter.The utility model can be used for carrying out high quick-action
The quasistatic compression experimental study of the car bodies such as vehicle group, intercity EMU, railcar.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the main view of the loading device in the utility model specific embodiment；
Fig. 2 is the top view of the loading device in the utility model specific embodiment；
Fig. 3 is the side view of the loading device in the utility model specific embodiment；
Fig. 4 is the partial schematic diagram that the load crossbeam in the utility model specific embodiment is connect with servo hydraulic cylinder；
Fig. 5 is only counter-force crossbeam in the utility model specific embodiment and partial schematic diagram that only counter-force lead screw is connect；
Fig. 6 is the structural schematic diagram of the longitudinal tie in the utility model specific embodiment.
Fig. 1 is into Fig. 6:
1- hydraulic servo loading system, 2- four-way hydraulic module, 3- load crossbeam, 4- servo hydraulic cylinder, 5- power sensing
Device, 6- loading head assembly, 7- longitudinal tie, 8- stop counter-force crossbeam, 9- stops counter-force lead screw, 10- lead screw locking nut, 11- flange
Seat, 12- stiffening plate, the vertical support rod of 13-, 14- crossbeam supporting plate, the bottom 15- support beam, 16- lead screw locking bed, 17- car body
Intensity test bench, 18- car body, 19- longitudinal tie bracket, 20- cross beam support frame, 21- lead screw.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 to Fig. 6 is please referred to, Fig. 1 is the main view of the loading device in the utility model specific embodiment, and Fig. 2 is this
The top view of loading device in utility model specific embodiment, Fig. 3 are the loading device in the utility model specific embodiment
Side view, Fig. 4 is the partial schematic diagram that connect with servo hydraulic cylinder of load crossbeam in the utility model specific embodiment, is schemed
5 is stop counter-force crossbeam and the partial schematic diagram that only counter-force lead screw is connect in the utility model specific embodiment, and Fig. 6 is that this is practical
The structural schematic diagram of longitudinal tie in novel specific embodiment.
The utility model combination vehicle body strength test stand 17 devises a kind of load based on the test of car body quasistatic compression
Device, for carrying out quasistatic compression car body strength, the rigidity examination of the car bodies such as high-speed EMUs, intercity EMU, railcar
The research tested.The loading device includes: vehicle body strength test stand 17, cross beam support frame 20, crossbeam supporting plate 14, load crossbeam 3, stops
Counter-force crossbeam 8, longitudinal tie 7.The structure and connection relationship of all parts are as follows:
Wherein, load crossbeam 3 is used to be arranged in the outside of the first headwall of car body 18, and only counter-force crossbeam 8 is for being arranged in
The outside of second headwall of car body 18 loads the lower section of crossbeam 3 and only the lower section of counter-force crossbeam 8 passes through crossbeam supporting plate 14 respectively
It is connected with cross beam support frame 20, cross beam support frame 20 is set to 21 top of lead screw of vehicle body strength test stand 17, plays support two
The booster action of a crossbeam；
Crossbeam supporting plate 14 is equipped with sliding connection structure, loads crossbeam 3 and only counter-force crossbeam 8 can be by sliding connection knot
Front-rear direction of the structure with respect to crossbeam supporting plate 14 along car body 18 slides；
Longitudinal tie 7 has multiple and is arranged symmetrically on 18 left and right directions of car body, and the both ends of pull rod 7 are solid respectively longitudinally in each
Surely it is connected to load crossbeam 3 and only counter-force crossbeam 8, to form enclosed frame structure；
It loads crossbeam 3 to be equipped with for the servo hydraulic cylinder 4 to the first headwall application pressure, servo hydraulic cylinder 4 is connected with liquid
Servo loading system 1 is pressed, only counter-force crossbeam 8 is equipped with the only counter-force lead screw 9 for being used to support the second headwall, the axis of servo hydraulic cylinder 4
Line is overlapped with the axis of only counter-force lead screw 9.
When test, car body 18 is fixed on to the center of closed framework structure, car body 18 is applied using servo hydraulic cylinder 4
Compressive load compresses car body 18, the load center line of servo hydraulic cylinder 4 and only counter-force with the only counter-force lead screw 9 of the other side jointly
The center line of lead screw 9 is overlapped, under reaction force, longitudinal tie 7 by the pulling force effect with compressive load same size, thus
Complete the application of load.Connection structure is slid for discharging load crossbeam 3 and only counter-force crossbeam 8 during loading along longitudinal direction
Displacement, guarantee car body 18 compressive load can uniformly apply.
The utility model uses the relative equilibrium principle and closed framework structure of power, has in structure very high strong
Degree and easily assembled in situ condition can be adapted to different test car bodies without huge ground reaction force holder structure, improve
The efficiency of test；Load source can realize the uniform application of car body semi-static load load using servo hydraulic cylinder, can be accurately
Control the parameters such as power and loading velocity, the load deflection of load；Loading system use closed-loop control, can using power control or
Displacement control mode is loaded to vehicle and is realized the monitoring and acquisition of parameter.
It should be noted that above-mentioned sliding connection structure is for discharging load crossbeam 3 with only counter-force crossbeam 8 in loading procedure
In displacement along longitudinal direction, sliding connection structure specifically can use multiple structural forms, such as sliding rail sliding slot connection structure, even
Connect column and oval hole connection structure, tubing string sliding connection structure etc., in a kind of preferred embodiment scheme, above-mentioned sliding connection
Structure includes oval pore structure and slippingly through the connecting column of oval pore structure, and the length direction of oval pore structure is along vehicle
The front-rear direction of body is disposed to extend, and crossbeam can so be made to discharge load deflection along the front-rear direction of car body during loading.
In assembly, first connecting column is applied in oval pore structure, then, the both ends of connecting column are clamped to respectively or are fixed on lower section
Crossbeam supporting plate 14 and top crossbeam, the effect of connecting column be only limit between crossbeam supporting plate 14 and the crossbeam of top
Relative displacement on vertical direction, two crossbeams can slide on crossbeam supporting plate 14.
It should be noted that above-mentioned oval pore structure specifically can be set in load crossbeam 3 and only on counter-force crossbeam 8,
Also it can be set on crossbeam supporting plate 14, it is of course also possible on load crossbeam 4, only counter-force crossbeam 8 and crossbeam supporting plate 14
It is provided with corresponding oval pore structure, in assembly, connecting column is passed through into oval pore structure, but can not fasten, to discharge cross
The length travel of beam during loading, that is, two crossbeams can slide on crossbeam supporting plate 14, and connecting column only limits crossbeam vertical
The freedom degree in direction.
It should be noted that above-mentioned connecting column can be designed as various structures, such as stud nut structure or both ends band card
Connection rod structure of connector etc., it is preferable that the connecting column in this specific embodiment scheme includes connecting stud and is connected to connection
The clamping nut of stud end.Clamping nut is used to be connected on the outside of the oval pore structure of crossbeam supporting plate 14, or is connected to load
On the outside of the oval pore structure of crossbeam 3 or only counter-force crossbeam 8.
It should be noted that the effect of longitudinal tie 7 is connection load crossbeam 3 and only counter-force crossbeam 8, and in servo-hydraulic
Pulling force is transmitted into counter-force crossbeam 8 to end when cylinder 4 starts, to make to load crossbeam 3 and the only common compression car body of counter-force crossbeam 8
18.In order to reduce the deformation of longitudinal tie 7, it is preferable that this programme is arranged with multiple vertical in the lower section of pull rod 7 longitudinally in each
Support rod 13, the lower end of vertical support rod 13 are connected to vehicle body strength test stand 17, and the upper end setting of vertical support rod 13 is useful
In the longitudinal tie bracket 19 of support longitudinal tie 7, longitudinal tie 7 can be sliding along itself axially opposing longitudinal tie bracket 19
It moves, the contact position between longitudinal tie bracket 19 and longitudinal tie 7 is without fixing, for discharging longitudinal tie 7 in loading procedure
In length travel.
Preferably, the upper end of vertical support rod 13 is provided with the fine tuning knot of the height for adjusting longitudinal tie bracket 19
Structure.It can change the height of longitudinal tie bracket 19 by adjusting fine tuning structure, so that longitudinal tie bracket 19 be made to hold well
Longitudinal tie 7 is held in the palm, while will not influence the straight skidding of longitudinal tie 7.Specifically, the fine tuning structure can be designed as screw thread tune
Section structure or sliding rail adjustment structure etc. can be realized the position adjustment of the relatively vertical support rod 13 of longitudinal tie bracket 19.
Preferably, pull rod 7 longitudinally in each is designed as the form of multi-section bar connection by this programme, that is, pull rod 7 longitudinally in each
Fixed segmentation pull rod is sequentially connected including more, the end for being segmented pull rod is equipped with flange seat 11 and stiffening plate 12.Adjacent point
Section pull rod is successively interconnected and fixed by the flange seat 11 and connection bolt of end, and stiffening plate 12 is for improving longitudinal tie 7
The bonding strength of end.Each segmentation pull rod can be formed by integral solder together with its flange seat 11 and stiffening plate 12 or one
Casting and forming.Those skilled in the art can design the segmentation pull rod of different number according to the specific length of car body 18, certainly,
Longitudinal tie 7 can also be designed as the Tiebar structure of an entirety by the utility model, and repeats no more herein.
Preferably, the end of servo hydraulic cylinder 4 is provided with the loading head assembly 6 for abutting the first headwall, and loading head is total
At force sensor 5 is arranged between 6 and servo hydraulic cylinder 4, force snesor 5 is connected to hydraulic servo loading system 1.Force snesor
Pressure Real-time Feedback that servo hydraulic cylinder 4 applies to hydraulic servo loading system 1 can be kept hydraulic servo loading system 1 real by 5
Existing closed-loop control, so as to which parameter is loaded and realized to vehicle using force control mode or displacement control mode
Monitoring and acquisition.
The utility model can select the servo-fluid of different size according to the specific requirements that car body quasistatic compression is tested
Cylinder pressure 4 and force snesor 5 have selected 50T servo hydraulic cylinder and 500kN force snesor in this specific embodiment scheme.
The only counter-force lead screw 9 being only arranged on counter-force crossbeam 8 is used to abut on the outside of the second headwall of car body 18, is loaded in installation
When device, longitudinal tie 7 can be tensed by the lead screw locking nut 10 stopped on counter-force lead screw 9.
Preferably, the quantity of longitudinal tie 7 is two, and two longitudinal ties 7 are arranged in parallel in the left and right sides of car body 18,
The quantity of servo hydraulic cylinder 4 is two, and two servo hydraulic cylinders 4 are arranged symmetrically on 18 left and right directions of car body, and pass through four-way
Road hydraulic module 2 is connected with hydraulic servo loading system 1.Counter-force crossbeam 8 is total with load crossbeam 3 and only for two longitudinal ties 7
With the closed framework structure for forming a rectangle, two servo hydraulic cylinders 4 can symmetrically apply compression in car body 18 and carry
Lotus, accordingly, only there are two only counter-force lead screws 9 for setting on counter-force crossbeam 8, so as to mention to 18 applying load evenly of car body
The accuracy and precision of high car body quasistatic compression test.
Preferably, cross beam support frame 20 is set to car body strength examination by bottom support beam 15 and lead screw locking bed 16
It tests on the lead screw 21 of platform 17, as shown in Figure 2.Cross beam support frame 20 is designed as frame structure, and effect is will to load crossbeam 3 and stop
8 support of counter-force crossbeam is in certain altitude position, in order to load crossbeam 3 and only counter-force crossbeam 8 applies compressive load to car body.When
So, the utility model can also fix device using other and cross beam support frame 20 is fixed on vehicle body strength test stand 17, this
Text repeats no more.In addition, the cross beam support frame 20 of the every side of car body 18 can be set to one or more, those skilled in the art can
To select the particular number of cross beam support frame 20 according to demand.
The installation process of the loading device of the utility model is described in detail below.
By the bottom support beam 15 at both ends and the bolt fastening to the silk of vehicle body strength test stand 17 of lead screw locking bed 16
On thick stick 21.Four cross beam support framves 20 are mounted respectively to the upper plane of bottom support beam 15, outside the rear and front end of car body 18
Respectively install two in side.Crossbeam supporting plate 14 is installed on cross beam support frame 20.Only only counter-force crossbeam 8 will be installed to by counter-force lead screw 9
On.By in 500kN force snesor, the installation to 50T servo hydraulic cylinder of loading head assembly 6, then, integral installation extremely loads crossbeam 3
On.Crossbeam 3 will be loaded and only counter-force crossbeam 8 is lifted respectively to the crossbeam supporting plate of the cross beam support frame 20 on the outside of 18 liang of headwalls of car body
On 14.Vertical support rod 13 is distributed in 18 left and right sides of car body according to drawing required distance, the lower end of vertical support rod 13 is used
Bolt is installed into the T-slot on 17 ground of vehicle body strength test stand.Assembled longitudinal tie 7 is lifted to 18 two sides of car body simultaneously
With the load crossbeam 3 at top and only, counter-force crossbeam 8 is connected respectively, and connection type can be to be threadedly coupled or being bolted, even
After connecing and adjusting distance, locked with lead screw locking nut 10.The micromatic setting for adjusting every vertical 13 top of support rod, makes to indulge
To the support longitudinal tie 7 well of pull rod bracket 19, contact position is without fixing, to discharge longitudinal tie 7 in loading procedure
Length travel.It will load that crossbeam 3, only the slotted hole of slotted hole and crossbeam supporting plate 14 of 8 bottom surface of counter-force crossbeam is passed through with stud, and
Installation card connected nut, but can not fasten, to discharge the length travel of two crossbeams in loading procedure.Complete hydraulic-servo-load
System 1, four-way hydraulic module 2,50T servo hydraulic cylinder 4, the piping connection of 500kN force snesor 5 and signal wire connection.Add
It carries and fastens all components according to test requirements document after the completion of setting overall package, and laterally adjust servo hydraulic cylinder 4 and only counter-force
Lead screw 9 is to car body loading Position.
Hydraulic servo loading system 1 is opened, the simulation for carrying out small power load several times preloads, and after confirmation is errorless, carries out just
Formula test procedure.
Loading device provided by the utility model is designed using floated closed frame structure, and structure is simple and intensity and toughness
Height can be adapted to different test car bodies, and test is rapidly and efficiently.Main loading structure design is carried out using the relative equilibrium principle of power,
There is very high intensity and convenient and fast assembled in situ condition in structure, without huge ground reaction force holder structure.It adopts in load source
With hydraulic-servo-load principle, that car body semi-static load load is realized with two 50T servo hydraulic cylinders synchronizes uniform application,
Synchronization accuracy is high, and loading procedure can monitor in real time, can accurately control the parameters such as power and loading velocity, the load deflection of load.
Loading system uses closed-loop control, parameter can be loaded and realized to car body using power control or displacement control mode
Monitoring and acquisition.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of loading device based on the test of car body quasistatic compression characterized by comprising vehicle body strength test stand
(17), cross beam support frame (20), crossbeam supporting plate (14), load crossbeam (3), only counter-force crossbeam (8), longitudinal tie (7)；Wherein,
Load crossbeam (3) is used to be arranged in the outside of the first headwall of car body (18), and described only counter-force crossbeam (8) are used for cloth
The outside of the second headwall of the car body (18) is placed in, under the lower section of load crossbeam (3) and only counter-force crossbeam (8)
Side is connected with the cross beam support frame (20) by the crossbeam supporting plate (14) respectively, and the cross beam support frame (20) is set to
Above the lead screw of the vehicle body strength test stand (17)；
The crossbeam supporting plate (14) is equipped with sliding connection structure, and the load crossbeam (3) and only counter-force crossbeam (8) can
Front-rear direction by the sliding relatively described crossbeam supporting plate (14) of connection structure along the car body (18) slides；
The longitudinal tie (7) has multiple and is arranged symmetrically on the car body (18) left and right directions, each longitudinal tie
(7) both ends be respectively fixedly connected in the load crossbeam (3) and it is described only counter-force crossbeam (8)；
Load crossbeam (3) is equipped with the servo hydraulic cylinder (4) for applying pressure to first headwall, the servo-hydraulic
Cylinder (4) is connected with hydraulic servo loading system (1), and described only counter-force crossbeam (8), which are equipped with, is used to support stopping for second headwall
Counter-force lead screw (9), the axis of the servo hydraulic cylinder (4) are overlapped with the axis of only counter-force lead screw (9).
2. loading device according to claim 1, which is characterized in that the sliding connection structure include oval pore structure and
Slippingly through the connecting column of the oval pore structure.
3. loading device according to claim 2, which is characterized in that the slotted hole structure setting is in the load crossbeam
(3) and on only counter-force crossbeam (8),
And/or
The slotted hole structure setting is on the crossbeam supporting plate (14).
4. loading device according to claim 2, which is characterized in that the connecting column includes connecting stud and is connected to institute
State the clamping nut of connecting stud end.
5. loading device according to claim 1, which is characterized in that the lower section of each longitudinal tie (7) is arranged
There are multiple vertical support rods (13), the lower end of the vertical support rod (13) is connected to the vehicle body strength test stand (17), institute
The upper end for stating vertical support rod (13) is provided with longitudinal tie bracket (19) for longitudinal tie described in support (7), described vertical
It can be along itself axially opposing longitudinal tie bracket (19) sliding to pull rod (7).
6. loading device according to claim 5, which is characterized in that the upper end setting of the vertical support rod (13) is useful
In the fine tuning structure for the height for adjusting the longitudinal tie bracket (19).
7. loading device according to claim 1, which is characterized in that each longitudinal tie (7) include more successively
The end of the segmentation pull rod being connected and fixed, the segmentation pull rod is equipped with flange seat (11) and stiffening plate (12).
8. loading device according to claim 1, which is characterized in that the end setting of the servo hydraulic cylinder (4) is useful
In the loading head assembly (6) for abutting first headwall, set between the loading head assembly (6) and the servo hydraulic cylinder (4)
It is equipped with force snesor (5), the force snesor (5) is connected to the hydraulic servo loading system (1).
9. loading device according to claim 1, which is characterized in that the quantity of the longitudinal tie (7) is two, two
Longitudinal tie (7) parallel arrangement is two in the left and right sides of the car body (18), the quantity of the servo hydraulic cylinder (4)
A, two servo hydraulic cylinders (4) are arranged symmetrically on the car body (18) left and right directions.
10. loading device according to claim 1, which is characterized in that the cross beam support frame (20) is supported by bottom
Crossbeam (15) and lead screw locking bed (16) are set on the lead screw of the vehicle body strength test stand (17).
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| CN111551375A (en) * | 2020-07-01 | 2020-08-18 | 河北京车轨道交通车辆装备有限公司 | Vehicle body static strength vehicle lifting test system and method |
| CN112665874A (en) * | 2020-12-17 | 2021-04-16 | 中南大学 | Loading device for vehicle quasi-static test, test method and test data correction method |
| CN112945589A (en) * | 2021-01-28 | 2021-06-11 | 中车长春轨道客车股份有限公司 | Test bed counter-force crossbeam lifting positioning device |
| CN112985851A (en) * | 2019-11-29 | 2021-06-18 | 中车长春轨道客车股份有限公司 | Vehicle quasi-static test platform |
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| CN110793791A (en) * | 2019-11-19 | 2020-02-14 | 中车株洲电力机车有限公司 | Driver's cab side collision-resistant test device |
| CN112985851A (en) * | 2019-11-29 | 2021-06-18 | 中车长春轨道客车股份有限公司 | Vehicle quasi-static test platform |
| CN111551375A (en) * | 2020-07-01 | 2020-08-18 | 河北京车轨道交通车辆装备有限公司 | Vehicle body static strength vehicle lifting test system and method |
| CN113820150A (en) * | 2020-07-03 | 2021-12-21 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for vehicle body end wall anti-collision column |
| WO2022000899A1 (en) * | 2020-07-03 | 2022-01-06 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for anti-collision column of vehicle body end wall |
| CN113820150B (en) * | 2020-07-03 | 2022-10-25 | 中车唐山机车车辆有限公司 | Quasi-static compression test device for vehicle body end wall anti-collision column |
| CN112665874A (en) * | 2020-12-17 | 2021-04-16 | 中南大学 | Loading device for vehicle quasi-static test, test method and test data correction method |
| CN112665874B (en) * | 2020-12-17 | 2022-11-29 | 中南大学 | Loading device for vehicle quasi-static test, test method and test data correction method |
| CN112945589A (en) * | 2021-01-28 | 2021-06-11 | 中车长春轨道客车股份有限公司 | Test bed counter-force crossbeam lifting positioning device |
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