CN102226743B - Rail vehicle vehicle terminal relation integration testing stand - Google Patents
Rail vehicle vehicle terminal relation integration testing stand Download PDFInfo
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- CN102226743B CN102226743B CN201110090248A CN201110090248A CN102226743B CN 102226743 B CN102226743 B CN 102226743B CN 201110090248 A CN201110090248 A CN 201110090248A CN 201110090248 A CN201110090248 A CN 201110090248A CN 102226743 B CN102226743 B CN 102226743B
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Abstract
The invention discloses a rail vehicle vehicle terminal relation integration testing stand, comprising a six freedom degree motion platform assembly, a truss vehicle end wall assembly, a simulation vehicle frame and fixed platform assembly and a test assembly. The simulation vehicle frame and fixed platform assembly is provided at the right side of the six freedom degree motion platform assembly, the fixed platform in the simulation vehicle frame and fixed platform assembly and the motion platform of the six freedom degree motion platform assembly share a plane along the symmetric plane of the X shaft direction, and the upper working face of the simulation vehicle frame in the simulation vehicle frame and fixed platform assembly is on the same horizontal plane with the upper working face of the motion platform. The motion terminal truss vehicle end wall assembly of the truss vehicle end wall assembly is fixedly connected to the motion platform and the fixed terminal truss vehicle end wall assembly is fixedly connected to the upper working face of the simulation vehicle frame. The test assembly is located between the simulation vehicle frame and fixed platform assembly and the six freedom degree motion platform assembly and the symmetric plane of the test assembly along the X shaft direction share a same plane with the symmetric plane of the truss vehicle end wall assembly along the X shaft direction.
Description
Technical field
The present invention relates to a kind of testing table of rail vehicle, more particularly, the car end that the present invention relates to a kind of rail vehicle concerns multi-function test stand.
Background technology
The car end is requisite important device during rail vehicle is formed, and plays to connect each compartment and under motor-car drives, make its smooth effect through various route curve bends.The performance of car end directly affects the riding quality and the security of operation of EMUs (train).The test of car end relation should be meant that the parts that are installed in the car body end are in train travelling process; Each parts relatively moves and rotates during because of relative motion between each car body of train with through the curve bend; Through the displacement of measurement component and the variation of power; Measure the parameter such as rigidity and damping of car end, for the train dynamics analysis provides accurate data.
The parts that are installed in the car end mainly comprise: run-through channel, the outer windscreen (EMU) of rubber, hitch, electric coupler and electric wire and brake piping etc.
Since the eighties in 20th century, world's rail vehicle has got into the epoch that develop rapidly.Canadian government has been ordered surplus in the of 500 to Wabtec company with 5,000,000 dollars and has been used for the ATX ES car end connection device that vehicle connects, and a kind of integrated GPS device is used for following the tracks of and control, the device that the car brakeing before and after the train is carried out simultaneously.But a kind of equipment that the car end detects that is used for is not provided.
The domestic car end that begins one's study at the beginning of the 21 century is mainly undertaken by rail vehicle manufacturing plant.These researchs also only are confined to the composition and the effect of car end connection device; The research of car end vibration absorber; Problems such as car end part analysis on cracks and improvement project; So far also do not have a kind of can the appearance at car end part before the problem such as fracture, the car end of inspection vehicle end characterisitic parameter concerns multi-function test stand.
1. the Chinese patent Granted publication number is CN201224406; Granted publication day: on April 22nd, 2009; The applying date is on June 20th, 2008; Denomination of invention: aluminum alloy bodywork low-floor light rail vehicle car end bottom and following hinge device syndeton; The patent No. is CN200820072016.3; The application people is a Changchun Railway Vehicle Co., Ltd..Introduced novel end carriage closed profiles bottom partially perforation in the patent document, realized the minimize destruction of time hinge the end carriage aluminium section bar.The carbon steel stiffening plate has increased the lifting surface area of bolt head and aluminium section bar end carriage, has avoided the stress of bolt head position end carriage section bar to concentrate.Realized the anti-rotation of bolt in stiffening plate upper hopper chute structure.Cut with scissors destruction problem down to solve existing high-strength material to aluminium alloy extrusions.Checkout equipment to car end part can not be provided.
2. the Chinese patent Granted publication number is CN201272365; Granted publication day is on July 15th, 2009; The applying date is on September 12nd, 2008; Denomination of invention is a car end vibration absorber; The patent No. is CN200820133573.1; The application people is a CSR Sifang Railway Co., Ltd.Introduced in the patent document at vertical car body two ends and adopted car end vibration damper each other,, tangible effect has been arranged for the ride quality that improves the high-speed track vehicle with the transverse vibration that suppresses car body effectively and the motion of shaking the head.But do not provide before and after a kind of installation car end vibration absorber, be used for the equipment that inspection vehicle end part characterisitic parameter changes.
Therefore; Develop rational in infrastructure, method of testing effective car end simple to operate and concern multi-function test stand; Coming the parameters such as rigidity and damping of inspection vehicle end part with this, and carry out parts and interfere demonstration test, functional trial and investigation test, has been an extremely urgent task.
Summary of the invention
To be solved by this invention is distortion and the present problem that corresponding car end checkout equipment is not arranged again of destruction that simulation EMUs (train) car end in service causes because of parameters such as rigidity and damping change, and provides a kind of car end of rail vehicle to concern multi-function test stand.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: described rail vehicle end concerns that multi-function test stand comprises 6-dof motion platform assembly, truss car headwall assembly, simulated frame and stationary platform assembly and test assembly.
Simulated frame and stationary platform assembly are installed in the right side of 6-dof motion platform assembly; In simulated frame and the stationary platform assembly stationary platform along motion platform in the symmetrical plane of X-direction and the 6-dof motion platform assembly along the symmetrical plane coplane of X-direction, in simulated frame and the stationary platform assembly in the last workplace of simulated frame and the 6-dof motion platform assembly the last workplace of motion platform be in the same surface level.
Truss car headwall assembly is made up of fix-ended girder unwheeling headwall assembly and tache motorice truss car headwall assembly.Tache motorice truss car headwall assembly is connected with the last workplace bolt of motion platform in the 6-dof motion platform assembly through the lower end of tache motorice truss car headwall framework; The lower end of fix-ended girder unwheeling headwall assembly through fix-ended girder unwheeling headwall framework is connected with the last workplace bolt of simulated frame in simulated frame and the stationary platform assembly, the symmetrical plane coplane of fix-ended girder unwheeling headwall assembly along the symmetrical plane of X-direction and tache motorice truss car headwall assembly along X-direction.
The test assembly is tested the symmetrical plane coplane of assembly along symmetrical plane and the truss car headwall assembly of motion platform in the plane of symmetry of X-direction and the 6-dof motion platform assembly along stationary platform in symmetrical plane, simulated frame and the stationary platform assembly of X-direction along X-direction along X-direction between simulated frame and stationary platform assembly and 6-dof motion platform assembly.
Tache motorice truss car headwall assembly described in the technical scheme comprises tache motorice truss car headwall framework, three-dimensional force sensor support plate and tache motorice vehicle body car end wall that 4 block structures are identical.Fix-ended girder unwheeling headwall assembly comprises fix-ended girder unwheeling headwall framework, three-dimensional force sensor support plate, stiff end vehicle body car end wall that 4 block structures are identical.Tache motorice truss car headwall framework is identical with fix-ended girder unwheeling headwall frame construction; The cuboid framework that tache motorice truss car headwall framework and fix-ended girder unwheeling headwall framework are welded by many horizontal rectangular tubes and vertical rectangular tube; The identical three-dimensional force sensor support plate of 8 block structures adopts the Si Jiaochu of four jiaos of places being bolted to tache motorice truss car headwall framework right side and fix-ended girder unwheeling headwall framework left side, is provided with many row's bolts hole above the identical three-dimensional force sensor support plate of 8 block structures.Tache motorice vehicle body car end wall and stiff end vehicle body car end wall are the thin-wall case structural member; Tache motorice vehicle body car end wall is identical with stiff end vehicle body car endwall structure; The middle part of tache motorice vehicle body car end wall right side and stiff end vehicle body car end wall left side is provided with the raised border that is used to install car end run-through channel; Stiff end vehicle body car end wall adopts and is bolted on the left side of fix-ended girder unwheeling headwall framework, and tache motorice vehicle body car end wall is fixedly mounted on the right side of tache motorice truss car headwall framework through the identical three-dimensional force sensor of four block structures in the test assembly; Described test assembly comprises identical three-dimensional force sensor and scrambler plane fixed frame of backguy linear transducer, the backguy linear transducer of a definite Z shaft position, four block structures of the backguy linear transducer of definite X shaft position that three structures are identical, definite Y shaft position that two structures are identical.Described scrambler plane fixed frame is by a cruciform bracing, the identical framework binding clasp column mounting platform identical with two block structures of upright of frame, two block structures that two root architectures are identical.The two ends of cruciform bracing are fixedly connected with the upper end of upright of frame through the framework binding clasp respectively; The lower end of upright of frame is connected with the center vertical fixing of column mounting platform; The upright of frame at cruciform bracing and two ends is vertical and be in the same vertical plane, and the column mounting platform of upright of frame lower end is parallel along the line of symmetry of X-direction.One end of the backguy linear transducer of definite X shaft position that three structures are identical is the isosceles triangle ground that distributes and adopts bolt to be installed on the left side of stiff end vehicle body car end wall, and the other end of the backguy linear transducer of definite X shaft position that three structures are identical is isosceles triangle and is installed on the right side of tache motorice vehicle body car end wall with distributing.One end of the backguy linear transducer of definite Y shaft position that two structures are identical is fixedly mounted on the inner face of upright of frame of fixed frame front, scrambler plane, and the other end of the backguy linear transducer of definite Y shaft position that two structures are identical is installed on the end face of No. 1 boss and No. 2 boss of tache motorice vehicle body car end wall.An end of confirming the backguy linear transducer of Z shaft position is fixedly mounted on the bottom surface of the cruciform bracing in the fixed frame of scrambler plane, confirms that the other end of the backguy linear transducer of Z shaft position is installed on the upper surface of tache motorice vehicle body car end wall.On the right side of the three-dimensional force sensor support plates of the left side of the three-dimensional force sensor that four block structures are identical through being bolted to four jiaos of places of tache motorice truss car headwall framework in the tache motorice truss car headwall assembly, on the left side of No. 3 boss, No. 4 boss, No. 5 boss and No. 6 boss of the right side of the three-dimensional force sensor that four block structures are identical through being bolted to tache motorice vehicle body car end wall left side; Described simulated frame and stationary platform assembly are made up of simulated frame and stationary platform.Stationary platform is made up of 30～40 identical earth anchor device and No. 2 cast iron platforms of structure.No. 2 cast iron platforms are cuboid plate structure spare; The last workplace of No. 2 cast iron platforms is prefabricated to have T type groove; The simulated frame that installs and fixes end truss car headwall framework and tested vechicle end part hitch adopts T type bolt to be installed on the last workplace of No. 2 cast iron platforms, and No. 2 cast iron platform is fixedly connected with the upper end that 30～40 identical lower ends of structure are fixed on the earth anchor device on the concrete foundation.
Compared with prior art the invention has the beneficial effects as follows:
1. rail vehicle end of the present invention concerns the complete characteristic parameter that each parts when multi-function test stand can be determined at relative motion state between simulation train each car body accurately and rapidly down with through curve track relatively move and get off and hold with rotary state.Utilize truss car headwall assembly can be fast, accurately, easily the tested vechicle end is positioned and supports, guarantee that tested vechicle end part parameters is measured in the test process accurately and reliability.
2. rail vehicle end of the present invention concern multi-function test stand utilize the 6-dof motion platform assembly can be flexibly, easily the car end is applied each to load; Relative motion between the simulation car body; Make tache motorice relative fixed end that horizontal, vertical, vertical or gyration take place; Measure the power that applies and the displacement of moving or the angle of rotation through three-dimensional force sensor and backguy linear transducer, can converse each stiffness parameters of tested vechicle end part.
3. rail vehicle end of the present invention concerns that multi-function test stand adopts the modularization flexible design; Through the combination of single parts or the different parts of adjustment car end, can satisfy all parts on railcar, EMUs, the railway passenger train car end are interfered demonstration test, functional trial and investigation test.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is that the rail vehicle end that is installed on the concrete foundation of the present invention concerns the axonometric projection graph that the structure of multi-function test stand is formed;
Fig. 2 is that rail vehicle end of the present invention concerns the front view that the structure of multi-function test stand is formed;
Fig. 3 is that rail vehicle end of the present invention concerns the axonometric projection graph that the structure of multi-function test stand is formed;
Fig. 4 is that rail vehicle end of the present invention concerns the vertical view that the structure of multi-function test stand is formed;
Fig. 5 is that rail vehicle end of the present invention concerns the axonometric projection graph that the 6-dof motion platform assembly structure in the multi-function test stand is formed;
Fig. 6 is the axonometric projection graph that rail vehicle end of the present invention concerns the application of force cylinder structure composition that the 6-dof motion platform assembly is adopted in the multi-function test stand;
Fig. 7 is that rail vehicle end of the present invention concerns the 6-dof motion platform assembly is adopted in the multi-function test stand the oil cylinder right angle bearing and the axonometric projection graph of force-transmitting seat sole plate;
Fig. 8-a is the axonometric projection graph that rail vehicle end of the present invention concerns the motion platform that the 6-dof motion platform assembly is adopted in the multi-function test stand;
Fig. 8-b is the cut-open view of A-A position among Fig. 8-a;
Fig. 9-a is the axonometric projection graph that rail vehicle end of the present invention concerns the cast iron platform that the 6-dof motion platform assembly is adopted in the multi-function test stand;
Fig. 9-b is the upward view that rail vehicle end of the present invention concerns the cast iron platform that the 6-dof motion platform assembly is adopted in the multi-function test stand;
Figure 10 is the axonometric projection graph that rail vehicle end of the present invention concerns fix-ended girder unwheeling headwall framework, three-dimensional force sensor support plate and stiff end vehicle body car end wall assembly relation in the multi-function test stand;
Figure 11 is the axonometric projection graph that rail vehicle end of the present invention concerns the three-dimensional force sensor support plate that truss car headwall assembly is adopted in the multi-function test stand;
Figure 12 is the axonometric projection graph that rail vehicle end of the present invention concerns the tache motorice vehicle body car end wall that tache motorice truss car headwall assembly is adopted in the multi-function test stand;
Figure 13 is the axonometric projection graph that rail vehicle end of the present invention concerns simulated frame and stationary platform assembly in the multi-function test stand;
Figure 14-a is the axonometric projection graph that rail vehicle end of the present invention concerns tache motorice truss car headwall framework in the multi-function test stand, three-dimensional force sensor support plate, test assembly, each sensor and stiff end vehicle body car end wall assembly relation;
Figure 14-b is the vertical view that rail vehicle end of the present invention concerns left side truss car headwall framework, three-dimensional force sensor support plate, tache motorice vehicle body car end wall, test assembly, each sensor and stiff end vehicle body car end wall assembly relation in the multi-function test stand;
Figure 15 is the axonometric projection graph that rail vehicle end of the present invention concerns the scrambler plane fixed frame of test assembly in the multi-function test stand;
Figure 16 is the axonometric projection graph that rail vehicle end of the present invention concerns the backguy linear transducer that multi-function test stand adopts;
Among the figure: I. rail vehicle end concerns combined test stand, the tested rail vehicle end of II., III. concrete foundation, A. 6-dof motion platform assembly, B. truss car headwall assembly; C. simulated frame and stationary platform assembly, D. tests assembly, the vertical application of force oil cylinder of a., b.1 number horizontal application of force oil cylinder, c.1 number vertical application of force oil cylinder; D.1 number oil cylinder right angle bearing, number force-transmitting seat sole plate e.1, f. motion platform, g. reference platform, h. fix-ended girder unwheeling headwall framework; I. three-dimensional force sensor support plate, j. stiff end vehicle body car end wall, the k. simulated frame, the l. stationary platform, m. confirms the backguy linear transducer of X shaft position; N. confirm the backguy linear transducer of Y shaft position, o. confirms the backguy linear transducer of Z shaft position, p. three-dimensional force sensor, q. scrambler plane fixed frame, No. 1.1 oil cylinder ball hinged supports; 2. bulb hinge safety pin, 3. hanger bulb, 4. ball-stud socket, 5. oil cylinder, 6. foot bolt; 7.1 number cast iron platform, 8. earth anchor device, No. 9.2 cast iron platforms, 10. cruciform bracings.11. upright of frame, 12. framework binding clasps, 13. column mounting platforms, 14. bolts, No. 15.1 boss, No. 16.2 boss, No. 17.3 boss, No. 18.4 boss, No. 19.5 boss, No. 20.6 boss.
Embodiment
Below in conjunction with accompanying drawing the present invention is explained in detail:
Consult Fig. 1,2,3,4, rail vehicle end of the present invention concerns that multi-function test stand is made up of 6-dof motion platform assembly A, truss car headwall assembly B, simulated frame and stationary platform assembly C, test assembly D, automatically controlled part and hydraulic power unit.
6-dof motion platform assembly A is installed in the left end of concrete foundation III; Simulated frame and stationary platform assembly C are installed in the right-hand member of concrete foundation III; Vertical (along X-direction) symmetrical plane coplane of stationary platform l among horizontal (along the X-direction) symmetrical plane of motion platform f and simulated frame and the stationary platform assembly C among the 6-dof motion platform assembly A; Among the 6-dof motion platform assembly A among the last workplace of motion platform f and simulated frame and the stationary platform assembly C the last workplace of simulated frame k be in the same surface level; One end of tested vechicle end part hitch is fixedly mounted on the right side of motion platform f, and the other end of tested vechicle end part hitch is fixedly mounted on the left side of simulated frame k.Truss car headwall assembly B is made up of fix-ended girder unwheeling headwall assembly and tache motorice truss car headwall assembly.The lower end of the tache motorice truss car headwall framework in the tache motorice truss car headwall assembly is connected with the last workplace bolt of motion platform f among the 6-dof motion platform assembly A; The lower end of fix-ended girder unwheeling headwall framework h in the fix-ended girder unwheeling headwall assembly is connected with the last workplace bolt of simulated frame k among simulated frame and the stationary platform assembly C, the symmetrical plane coplane of fix-ended girder unwheeling headwall assembly along the symmetrical plane of X-direction and tache motorice truss car headwall assembly along X-direction.Test assembly D is installed on the concrete foundation III between 6-dof motion platform assembly A and simulated frame and the stationary platform assembly C, tests vertical symmetrical plane of stationary platform l among lateral symmetry plane, simulated frame and the stationary platform assembly C of motion platform f among horizontal (along the X-direction) plane of symmetry and the 6-dof motion platform assembly A of assembly D and vertical (along X-direction) symmetrical plane coplane of truss car headwall assembly B.The end of tested rail vehicle end II is fixedly mounted on the right side of tache motorice truss car headwall assembly, and the other end of tested rail vehicle end II is fixedly mounted on the left side of fix-ended girder unwheeling headwall assembly.Among the 6-dof motion platform assembly A vertically, laterally be connected with the hydraulic power unit pipeline with the leaching hydraulic fluid port of vertical application of force oil cylinder.Various sensors among the test assembly D are connected with the electric control part separated wire.
Consult Fig. 5 and 6, described 6-dof motion platform assembly A comprises a vertical application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b, No. 2 horizontal application of force oil cylinders, No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders, No. 3 vertical application of force oil cylinders, No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings, No. 3 oil cylinder right angle bearings, No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates, No. 3 force-transmitting seat sole plates, a motion platform f, a reference platform g.6-dof motion platform assembly A has the function of space 6DOF motion; Can simulate the relative motion state of two car ends, thereby can realize that hitch, run-through channel, outer rubber windscreen, car end span connect cable, brake piping and car end equipment box skimulated motion and mechanical environment are provided.Wherein: vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b, No. 2 horizontal application of force oil cylinders, No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders are identical with the structure of No. 3 vertical application of force oil cylinders; No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings are identical with the structure of No. 3 oil cylinder right angle bearings; No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates are identical with the structure of No. 3 force-transmitting seat sole plates.
Described vertical application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b, No. 2 horizontal application of force oil cylinders, No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders comprise 1, No. 2 oil cylinder ball hinged supports of No. 1 oil cylinder ball hinged support, 2, No. 2 bulb hinge safety pins of No. 1 bulb hinge safety pin, 3, No. 2 hanger bulbs of No. 1 hanger bulb, No. 1 ball-stud socket 4, No. 2 ball-stud sockets, piston and oil cylinders 5 respectively.The structure of No. 1 oil cylinder ball hinged support 1 and No. 2 oil cylinder ball hinged supports, No. 1 bulb hinge safety pin 2 and No. 2 bulb hinge safety pins, No. 1 hanger bulb 3 and No. 2 hanger bulbs and No. 1 ball-stud socket 4 and No. 2 ball-stud sockets is identical.The axis hole on No. 1 oil cylinder ball hinged support 1 and the two ends of bulb hinge safety pin 2 are rotationally connected movingly; In the endoporus of bulb hinge safety pin 2 middle parts insertion hanger bulb 3 is wringing fit; Hanger bulb 3 insert in ball-stud sockets 4 endoporus be the gap movingly, ball-stud socket 4 is fixedly connected with oil cylinder 5 piston rod coaxial threaded.The annexation of No. 2 oil cylinder ball hinged supports, No. 2 bulb hinge safety pins, No. 2 hanger bulbs and No. 2 ball-stud sockets is identical with the annexation of No. 1 oil cylinder ball hinged support 2, No. 1 hanger bulb 3 of 1, No. 1 bulb hinge safety pin and No. 1 ball-stud socket 4.Vertically an end of application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders is connected through the sidewall bolt of No. 1 oil cylinder ball hinged support 1 and motion platform f respectively; Vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b are fixedly connected with No. 3 oil cylinder right angle carrier setting bolts with No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings through No. 2 oil cylinder ball hinged supports respectively with the other end of No. 2 horizontal application of force oil cylinders; No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings and No. 3 oil cylinder right angle bearings are installed on No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates and No. 3 force-transmitting seat sole plates through T type bolt, and the bottom of No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates and No. 3 force-transmitting seat sole plates is cast on the concrete foundation III through foot bolt 6.No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders to parallel axes and in same surface level, vertically application of force oil cylinder a to axis and No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders to intersect vertical axis.No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders are connected with the following workplace bolt of motion platform f through No. 1 oil cylinder ball hinged support 1 respectively with the upper end of No. 3 vertical application of force oil cylinders; The tie point of workplace is distributed on the summit at three angles of an isosceles triangle under the motion platform f; The axis of symmetry of described isosceles triangle is along the directions X setting; The base of isosceles triangle is positioned at the right side of reference platform g, and the summit of isosceles triangle is positioned at the left side of reference platform g.No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders are connected with the upper surface bolt of reference platform g through No. 2 oil cylinder ball hinged supports respectively with the lower end of No. 3 vertical application of force oil cylinders.
Can transverse force be provided to motion platform f through No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinder while homodromous movements; Make it and in surface level, produce (along X-direction) laterally to move; And measure mobile shift value through the backguy linear transducer m of the definite X shaft position on the vehicle body car end wall j of stiff end, can calculate the lateral stiffness of tested rail vehicle end according to this shift value and the measured horizontal force of three-dimensional force sensor p.
Through vertical application of force oil cylinder a action (promptly along Y direction) power can be provided vertically to motion platform f; It is produced in surface level vertically moves; And measure mobile shift value through the backguy linear transducer n of the definite Y shaft position on the fixed frame q of scrambler plane, can calculate the longitudinal rigidity of tested rail vehicle end according to this shift value and the measured longitudinal force of three-dimensional force sensor p.
Can vertical force be provided to motion platform f through No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinder while homodromous movements; Make it produce vertical moving; And measure mobile shift value through the backguy linear transducer o of the definite Z shaft position on the fixed frame q of scrambler plane, can calculate the vertical stiffness of tested rail vehicle end according to this shift value and the measured vertical acting force of three-dimensional force sensor p.
No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are driven; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the Z axle on surface level around the Z axle.
No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are driven; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the X axle around the X axle.
No. 1 vertical application of force oil cylinder c and No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are driven simultaneously; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the Y axle around the Y axle.
Consult Fig. 7,8 and 9, motion platform f is the flat box structure of the double T font that is welded by steel plate and six roots of sensation square steel tube.No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings and No. 3 oil cylinder right angle bearings are the square box structural member with certain intensity and rigidity that steel plate welding or casting form, and each application of force oil cylinder is play supporting role.No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings and No. 3 oil cylinder right angle bearings are installed on No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates and No. 3 force-transmitting seat sole plates through T type bolt; Prefabricated T type groove on No. 1 force-transmitting seat sole plate e, No. 2 force-transmitting seat sole plates and No. 3 force-transmitting seat sole plates is in order to adjust the position of No. 1 oil cylinder right angle bearing d, No. 2 oil cylinder right angle bearings and No. 3 oil cylinder right angle bearings.Reference platform g comprises No. 1 cast iron platform 7 and 9～15 earth anchor devices 8 that structure is identical; No. 1 cast iron platform 7 adopts the cast iron pouring technology; The inner cellular structure that adopts is to reduce total quality and proof strength, and No. 1 cast iron platform 7 is fixed on the concrete foundation III through 9～15 identical earth anchor devices 8 of structure.The earth anchor device 8 that several structures are identical has the advantage of rapid adjustment height, adjustment reference platform g level.Reference platform g plays positioning action to whole 6-dof motion platform assembly A, and is that No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders provide supporting.
Consult Figure 10,11 and 12, truss car headwall assembly B is made up of fix-ended girder unwheeling headwall assembly and tache motorice truss car headwall assembly.Fix-ended girder unwheeling headwall assembly comprises fix-ended girder unwheeling headwall framework h, three-dimensional force sensor support plate i, stiff end vehicle body car end wall j that 4 block structures are identical; Tache motorice truss car headwall assembly comprises tache motorice truss car headwall framework, three-dimensional force sensor support plate i and tache motorice vehicle body car end wall that 4 block structures are identical.The tache motorice truss car headwall framework of skimulated motion end is identical with the fix-ended girder unwheeling headwall framework h structure of simulation stiff end.The cuboid framework that tache motorice truss car headwall framework and fix-ended girder unwheeling headwall framework h are welded by many horizontal rectangular tubes and vertical rectangular tube is to alleviate the needs of total quality and proof strength.Stiff end vehicle body car end wall j is identical with tache motorice vehicle body car endwall structure, and stiff end vehicle body car end wall j and tache motorice vehicle body car end wall are the thin-wall case structural member, and the protruding frame of end face is used for location and installation car end run-through channel.The identical three-dimensional force sensor support plate i of 8 block structures among the truss car headwall assembly B adopts the Si Jiaochu of four jiaos of places being bolted to fix-ended girder unwheeling headwall framework h left side and tache motorice truss car headwall framework right side.The three-dimensional force sensor p of four measurement car ends of bolt installation between three-dimensional force sensor support plate i and the tache motorice vehicle body car end wall in the tache motorice truss car headwall assembly; Be provided with many row's bolts hole above the three-dimensional force sensor support plate i; Be used to regulate the installation site of three-dimensional force sensor p, measure different car end part and combination to adapt to.Stiff end vehicle body car end wall j adopts and is bolted on the left side of fix-ended girder unwheeling headwall framework h.The lower end of tache motorice truss car headwall framework is gone up workplace with motion platform f and is connected through bolt.The lower end of fix-ended girder unwheeling headwall framework h is connected with simulated frame k bolt.Truss car headwall assembly B plays the effect of location and power transmission to tested rail vehicle end II.
Consult Figure 13, simulated frame and stationary platform assembly C comprise simulated frame k and stationary platform l.Stationary platform l is made up of 30～40 identical earth anchor device 8 and No. 2 cast iron platforms 9 of structure.Fix-ended girder unwheeling headwall assembly is connected with the last workplace bolt of simulated frame k, and simulated frame k play supporting role to fix-ended girder unwheeling headwall assembly, and tested vechicle end part hitch is installed simultaneously.No. 2 cast iron platform 9 upper surfaces prefabricated T type grooves; In order to T type bolt simulated frame k is installed; And can regulate simulated frame k is fixed on the earth anchor device 8 on the concrete foundation III along No. 2 cast iron platforms 9 lower end identical with several structures, installation site of X-direction upper end screw thread along T type groove according to different car end test components and be fixedly connected, stationary platform l concerns to whole rail vehicle car end that multi-function test stand plays and supports and fixation.
Consult Figure 14,15, test assembly D comprises identical three-dimensional force sensor p, scrambler plane fixed frame q of structure of the backguy linear transducer n of the backguy linear transducer m of definite X shaft position that three structures are identical, definite Y shaft position that two structures are identical, the backguy linear transducer o of a definite Z shaft position, four measurement car ends.Scrambler plane fixed frame q is by a cruciform bracing 10, the column mounting platform 13 that framework binding clasp 12, two block structures that upright of frame 11, two block structures that two root architectures are identical are identical are identical, the bolt 14 of several M24 types.
The two ends of cruciform bracing 10 are fixedly connected with the upper end of upright of frame 11 through framework binding clasp 12 respectively; The lower end of upright of frame 11 is connected with the center vertical fixing of column mounting platform 13; The upright of frame 11 at cruciform bracing 10 and two ends is vertical and be in the same vertical plane, and the column mounting platform 13 of upright of frame 11 lower ends is parallel along the line of symmetry of X-direction.Described framework binding clasp 12 is made up of clamping plate and four bolts that the identical Si Jiaochu of 2 block structures is provided with through hole, an end of cruciform bracing 10 and the upper end of upright of frame 11 is clamped from both sides with 2 clamping plate, and then tightened fixing with four bolts.
Scrambler plane fixed frame q is through the identical column mounting platform 13 of its lower end two block structures and residing plane of fixed frame q, scrambler plane and directions X vertically are welded on the concrete foundation III; Vertical (along X-direction) symmetrical plane coplane of laterally (along the X-direction) symmetrical plane of vertically (along the X-direction) plane of symmetry of scrambler plane fixed frame q and motion platform f and stationary platform l, promptly fixed frame q in scrambler plane is fixed on the concrete foundation III of motion platform f and stationary platform l both sides through the identical column mounting platform 13 of upright of frame 11 lower ends two block structures with stationary platform l across motion platform f.The end of the backguy linear transducer m of definite X shaft position that three structures are identical is the isosceles triangle ground that distributes and adopts bolt to be installed on the left side of stiff end vehicle body car end wall j; The axis of symmetry of described isosceles triangle is along vertical setting; The summit of isosceles triangle is last; The other end of the backguy linear transducer m of definite X shaft position that three structures are identical is installed on the right side of tache motorice vehicle body car end wall with same isosceles triangle distribution form, confirms that the backguy linear transducer m of X-direction is used to measure the transversal displacement of car end part.The end of the backguy linear transducer n of definite Y shaft position that two structures are identical adopts bolt to be installed on the inner face of upright of frame 11 of fixed frame q front, scrambler plane; The other end of the backguy linear transducer n of definite Y shaft position that two structures are identical is installed on the end face of No. 1 boss 15 and No. 2 boss 16 of tache motorice vehicle body car end wall, confirms the length travel that the backguy linear transducer n of Y shaft position is used to measure car end part.An end of confirming the backguy linear transducer o of Z shaft position adopts bolt to be installed on the bottom surface of the cruciform bracing 10 among the fixed frame q of scrambler plane; The other end of confirming the backguy linear transducer o of Z shaft position is installed on the upper surface of tache motorice vehicle body car end wall, confirms that the backguy linear transducer o of Z shaft position is used to measure vertical deviation.The left side of the three-dimensional force sensor p of the measurement car end that four block structures are identical is through on the three-dimensional force sensor support plate i right side that is bolted to four jiaos of places of tache motorice truss car headwall framework in the tache motorice truss car headwall assembly; On the left side of No. 3 boss 18, No. 5 boss 19 of 17, No. 4 boss and No. 6 boss 20 of the right side of the three-dimensional force sensor p that four block structures are identical through being bolted to tache motorice vehicle body car end wall left side, three-dimensional force sensor p is used to measure the acting force of all directions.The backguy linear transducer m of the definite X shaft position that is adopted among the present invention, confirm that the backguy linear transducer n of Y shaft position is the identical backguy linear transducer (consulting Figure 16) of structure with the backguy linear transducer o of definite Z shaft position.
Described rail vehicle end concerns the principle of work of multi-function test stand:
At first the in-circuit emulation circuit is composed; To under real train operation condition, be utilized sensor that it is noted by the various physical quantitys of test run end (displacement, speed, power load etc.); Being input to the rail vehicle end with the form of file then concerns in the automatically controlled part of multi-function test stand; With the steering order of data recorded as 6-dof motion platform assembly A; Utilize the working condition of 6-dof motion platform assembly A simulation unit under test full-scale condition, the operating characteristic of in-circuit emulation unit under test under the train operation condition.Three-dimensional force sensor, each backguy linear transducer through test assembly D are gathered power and displacement data on the 6-dof motion platform assembly A; Obtain the power and the displacement information of the six-freedom degree of 6-dof motion platform assembly A, and calculate by parameter and output files such as the rigidity of test run end, damping, dynamic stiffness, dynamic dampings by the special software analysis of test assembly D.
Physical simulation operating mode and test process are following:
Can transverse force be provided to motion platform f through No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinder while homodromous movements; Make it and in surface level, produce (along X-direction) laterally to move; And measure mobile shift value through the backguy linear transducer m of the definite X shaft position on the vehicle body car end wall j of stiff end, can calculate the lateral stiffness of tested rail vehicle end according to this shift value and the measured horizontal force of three-dimensional force sensor p.
Through vertical application of force oil cylinder a action (promptly along Y direction) power can be provided vertically to motion platform f; It is produced in surface level vertically moves; And measure mobile shift value through the backguy linear transducer n of the definite Y shaft position on the fixed frame q of scrambler plane, can calculate the longitudinal rigidity of tested rail vehicle end according to this shift value and the measured longitudinal force of three-dimensional force sensor p.
Can vertical force be provided to motion platform f through No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinder while homodromous movements; Make it produce vertical moving; And measure mobile shift value through the backguy linear transducer o of the definite Z shaft position on the fixed frame q of scrambler plane, can calculate the vertical stiffness of tested rail vehicle end according to this shift value and the measured vertical acting force of three-dimensional force sensor p.
No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 vertical application of force oil cylinder c, No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are driven; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the Z axle on surface level around the Z axle.
No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are driven; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the X axle around the X axle.
No. 1 vertical application of force oil cylinder c and No. 2 vertical application of force oil cylinders and No. 3 vertical application of force oil cylinders are moved in the other direction; Vertically application of force oil cylinder a, No. 1 horizontal application of force oil cylinder b and No. 2 horizontal application of force oil cylinders are driven simultaneously; Can calculate the gyro rigidity of tested rail vehicle end according to power and corner so that motion platform f rotates around the Y axle around the Y axle.
Claims (4)
1. a rail vehicle end concerns multi-function test stand; Comprise 6-dof motion platform assembly (A); It is characterized in that described rail vehicle end concerns that multi-function test stand also comprises truss car headwall assembly (B), simulated frame and stationary platform assembly (C) and test assembly (D);
Simulated frame and stationary platform assembly (C) are installed in the right side of 6-dof motion platform assembly (A); Stationary platform (l) is along motion platform (f) is along the symmetrical plane coplane of X-direction in the symmetrical plane of X-direction and the 6-dof motion platform assembly (A) in simulated frame and the stationary platform assembly (C), and the last workplace of the middle motion platform (f) of the last workplace of simulated frame (k) and 6-dof motion platform assembly (A) is in the same surface level in simulated frame and the stationary platform assembly (C);
Truss car headwall assembly (B) is made up of fix-ended girder unwheeling headwall assembly and tache motorice truss car headwall assembly; Tache motorice truss car headwall assembly is connected with the last workplace bolt of motion platform (f) in the 6-dof motion platform assembly (A) through the lower end of tache motorice truss car headwall framework; The lower end of fix-ended girder unwheeling headwall assembly through fix-ended girder unwheeling headwall framework (h) is connected with the last workplace bolt of simulated frame and the middle simulated frame (k) of stationary platform assembly (C), the symmetrical plane coplane of fix-ended girder unwheeling headwall assembly along the symmetrical plane of X-direction and tache motorice truss car headwall assembly along X-direction;
Test assembly (D) is positioned between simulated frame and stationary platform assembly (C) and the 6-dof motion platform assembly (A), the symmetrical plane coplane of test assembly (D) along symmetrical plane and the truss car headwall assembly (B) of the middle motion platform (f) of the plane of symmetry of X-direction and 6-dof motion platform assembly (A) along the middle stationary platform (l) of symmetrical plane, simulated frame and the stationary platform assembly (C) of X-direction along X-direction along X-direction.
2. concern multi-function test stand according to the described rail vehicle end of claim 1; It is characterized in that described tache motorice truss car headwall assembly comprises tache motorice truss car headwall framework, three-dimensional force sensor support plate (i) and tache motorice vehicle body car end wall that 4 block structures are identical; Fix-ended girder unwheeling headwall assembly comprises fix-ended girder unwheeling headwall framework (h), three-dimensional force sensor support plate (i), stiff end vehicle body car end wall (j) that 4 block structures are identical;
Tache motorice truss car headwall framework is identical with fix-ended girder unwheeling headwall framework (h) structure; The cuboid framework that tache motorice truss car headwall framework and fix-ended girder unwheeling headwall framework (h) are welded for many horizontal rectangular tubes and vertical rectangular tube; The identical three-dimensional force sensor support plate (i) of 8 block structures adopts the Si Jiaochu of four jiaos of places being bolted to tache motorice truss car headwall framework right side and fix-ended girder unwheeling headwall framework (h) left side; Be provided with many row's bolts hole above the identical three-dimensional force sensor support plate (i) of 8 block structures; Tache motorice vehicle body car end wall and stiff end vehicle body car end wall (j) are the thin-wall case structural member; Tache motorice vehicle body car end wall is identical with stiff end vehicle body car end wall (j) structure; The middle part of tache motorice vehicle body car end wall right side and stiff end vehicle body car end wall (j) left side is provided with the raised border that is used to install car end run-through channel; Stiff end vehicle body car end wall (j) adopts and is bolted on the left side of fix-ended girder unwheeling headwall framework (h), and tache motorice vehicle body car end wall is fixedly mounted on the right side of tache motorice truss car headwall framework through the identical three-dimensional force sensor (p) of four block structures in the test assembly (D).
3. concern multi-function test stand according to claim 1 or 2 described rail vehicle ends; It is characterized in that described test assembly (D) comprises the backguy linear transducer (n) of the backguy linear transducer (m) of definite X shaft position that three structures are identical, definite Y shaft position that two structures are identical, the backguy linear transducer (o) of a definite Z shaft position, a three-dimensional force sensor (p) and the scrambler plane fixed frame (q) that four block structures are identical;
Described scrambler plane fixed frame (q) is made up of a cruciform bracing (10), framework binding clasp (12) the column mounting platform (13) identical with two block structures that upright of frame (11), two block structures that two root architectures are identical are identical;
The two ends of cruciform bracing (10) are fixedly connected with the upper end of upright of frame (11) through framework binding clasp (12) respectively; The lower end of upright of frame (11) is connected with the center vertical fixing of column mounting platform (13); The upright of frame (11) at cruciform bracing (10) and two ends is vertical and be in the same vertical plane, and the column mounting platform (13) of upright of frame (11) lower end is parallel along the line of symmetry of X-direction;
One end of the backguy linear transducer (m) of definite X shaft position that three structures are identical is the isosceles triangle ground that distributes and adopts bolt to be installed on the left side of stiff end vehicle body car end wall (j); The other end of the backguy linear transducer (m) of definite X shaft position that three structures are identical is isosceles triangle and is installed on the right side of tache motorice vehicle body car end wall with distributing; One end of the backguy linear transducer (n) of definite Y shaft position that two structures are identical is fixedly mounted on the inner face of upright of frame (11) of front, scrambler plane fixed frame (q); On No. 1 boss (15) that the other end of the backguy linear transducer (n) of definite Y shaft position that two structures are identical is installed in tache motorice vehicle body car end wall and the end face of No. 2 boss (16); An end of confirming the backguy linear transducer (o) of Z shaft position is fixedly mounted on the bottom surface of the cruciform bracing (10) in the scrambler plane fixed frame (q); The other end of confirming the backguy linear transducer (o) of Z shaft position is installed on the upper surface of tache motorice vehicle body car end wall; On the right side of the three-dimensional force sensor support plates (i) of the left side of the three-dimensional force sensor that four block structures are identical (p) through being bolted to four jiaos of places of tache motorice truss car headwall framework in the tache motorice truss car headwall assembly, on the left side of No. 3 boss (17) of the right side of the three-dimensional force sensor that four block structures are identical (p) through being bolted to tache motorice vehicle body car end wall left side, No. 4 boss (18), No. 5 boss (19) and No. 6 boss (20).
4. concern multi-function test stand according to the described rail vehicle end of claim 1; It is characterized in that; Described simulated frame and stationary platform assembly (C) are made up of simulated frame (k) and stationary platform (l), and stationary platform (l) is made up of 30～40 identical earth anchor device (8) and No. 2 cast iron platforms (9) of structure;
No. 2 cast iron platforms (9) are cuboid plate structure spare; The last workplace of No. 2 cast iron platforms (9) is prefabricated to have T type groove; The simulated frame (k) that installs and fixes end truss car headwall framework (h) and tested vechicle end part hitch adopts T type bolt to be installed on the last workplace of No. 2 cast iron platforms (9), and No. 2 cast iron platforms (9) are fixedly connected with the upper end that 30～40 identical lower ends of structure are fixed on the earth anchor device (8) on the concrete foundation (III).
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