CN101561339B - System for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies - Google Patents

System for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies Download PDF

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Publication number
CN101561339B
CN101561339B CN2009100670248A CN200910067024A CN101561339B CN 101561339 B CN101561339 B CN 101561339B CN 2009100670248 A CN2009100670248 A CN 2009100670248A CN 200910067024 A CN200910067024 A CN 200910067024A CN 101561339 B CN101561339 B CN 101561339B
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China
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oil cylinder
closed
vertical
bogie
platform
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CN2009100670248A
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Chinese (zh)
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CN101561339A (en
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苏建
梁树林
刘玉梅
王兴宇
蓝志坤
潘洪达
周殿买
陈熔
熊伟
张立斌
林慧英
徐观
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吉林大学
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Abstract

The invention relates to equipment for dynamically detecting parameters of railway vehicles, in particular to a system for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies. The system consists of a mechanical system, a testing system and a control system, wherein the mechanical system comprises a body vertical thrust block assembly (II), a dynamic detection table (III) for the stiffness parameters of the closed-loop diagonal-bracing type vehicle bogies, and a hoisting-type upper beam pillar (V); the dynamic detection table (III) for the stiffness parameters of the closed-loop diagonal-bracing type vehicle bogies mainly comprises a closed-loop diagonal-bracing type vertical loading gantry (A), a plane loading platform (B), an adjustable-gauge bridge approach device (C), a bogie longitudinal anti-thrust assembly (D) and a simulation corbel (F); the testing system comprises a displacement detection system (G) and a six-dimensional force sensor(c); and the control system mainly comprises a hydraulic control system, an electrical control system and a computer system. The system can perform dynamic test on the stiffness parameters of the bogies in an entire-vehicle state and an independent state.

Description

The stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system
Technical field
The present invention relates to the rail vehicle parameter detection equipment, particularly relate to a kind of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system.
Background technology
1, the technical situation of offshore company's bogie checkout equipment
Some companies of Germany and France are in novel steering frame development process, calculate and optimize according to the suspension parameter of road line spectrum pair bogie, but this only is a Theoretical Calculation, after the bogie assembling is finished, one be, two be, reverse and whether the integral hanging parameter reaches designing requirement, must obtain by parameter test board, and carry out suitable correction.
Ground transport Technical Research Center (CSTT) under National Research Council of Canada (NRC) has been developed special bogie characterisitic parameter test board in the eighties of last century the eighties, be mainly used in the test steering framing wheel to shear stiffness, bendind rigidity and other parameters.In recent years, Germany Wind-Hoff company, Unite States Standard (USS) bogie of car company (SCT) and ABC-NACO company and Canadian Bombadier Inc are all studied train bogie detection technique, propose the corresponding techniques scheme and developed the parameter of bogie testing table, but these equipment are except that price is high, for car load test and be, the test vertical, vertical, that laterally reach rotational stiffness etc. of secondary suspension device is not well positioned to meet.
2, the state of the art of domestic parameter of bogie testing table
At present, domestic Southwest Jiaotong University has the certain experience basis aspect the bogie detection technique, and this university has national key lab and checkout equipment.Domestic when the novel steering frame is researched and developed no matter be locomotive, lorry or passenger vehicle change to frame, for dynamicly choose, the test of shaking of rolling of calculating and car load all finishes in Southwest Jiaotong University, but its equipment is for the performance deficiency of the detection of dynamic aspect of the various parameters of bogie, and automaticity is low.
Domestic each railway manufacturing company did not all have the parameter detection equipment of bogie in the past, but development along with rolling stock, passenger train is introduced 300km/h and 400km/h technology, railway freight-car develops to heavy duty, the parameter detection equipment of bogie is more and more important, and Zhuzhou Electric Locomotive Plant, four directions, Qingdao company all plan to set up bogie univers parameter checkout equipment a few days ago.
Therefore, develop rational in infrastructure, test result is accurate, the simple rail vehicle truck parameter of method of operating dynamic detection system, and check parameter of bogie whether qualified with this, security, stationarity and the every dynamic performance of guaranteeing vehicle operating has been needing to be resolved hurrily of a task.
Summary of the invention
The object of the present invention is to provide a kind of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system, to satisfy the needs of the major impetus mathematic(al) parameter detection under the multiple running status of rail vehicle truck, this detection system has adopted the structural design of rational load simulated system, can carry out the dynamic test of bogie rigidity parameter under the whole vehicle state, and can to satisfy one of bogie be detection of dynamic requirement with the different parameters such as vertical stiffness, longitudinal rigidity, lateral stiffness, bendind rigidity, shear stiffness and whole gyro rigidity of secondary suspension device.Its hydraulic control mode has adopted the servo power close-loop control mode of electricity-liquid.Wheel can be fed back in the computer control system suffered loading force by six-dimension force sensor, carry out the processing and the control of data.The sequencing of test procedure, robotization make the detection of dynamic of bogie rigidity parameter under different frequency, various amplitude characteristic more accurately, efficiently.
Above-mentioned purpose of the present invention is achieved in that accompanying drawings is as follows:
A kind of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system, mainly by mechanical system, test macro and control system are formed, described mechanical system comprises: the vertical thrust block seat assembly of a vehicle body II, a stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III, two lift-on/lift-off type entablature pillar V, wherein two lift-on/lift-off type entablature pillar V fixed and arranged are in the side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III, and the vertical thrust block seat assembly of vehicle body II fixed and arranged is in the front end of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III; Test macro comprises 12 displacement detection system G and four six-dimension force sensor c, 12 displacement detection system G simulation of being arranged in bogie E respectively lower end and four wheel places of vehicle body of the place, two ends of beam F, car load VI to be measured that shake wherein, four six-dimension force sensor c are arranged in respectively under four wheels of bogie E, and with four wheels locating clip clamping system e are fixedlyed connected respectively; Control system mainly is made up of hydraulic control system, electric control system and computer system, and concentrated being arranged in the IV of computer control chamber, wherein IV fixed and arranged in computer control chamber is in the side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III.
Described stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III is mainly by the vertical loading of closed-loop diagonal-bracing type gantry A, plane weighted platform B, adjustable gauge access bridge device C, bogie vertical thrust assembly D and simulation sleeper beam F form, the vertical loading of described closed-loop diagonal-bracing type gantry A is fixedlyed connected with the reference platform a of plane weighted platform B, two adjustable gauge access bridge device C are by on the reference platform a that is bolted to plane weighted platform B, the vertical thrust assembly of each bogie D is fixedlyed connected with reference platform a by a plurality of vertical thrust block seat bolts 9, simulation sleeper beam F floats with bogie E and is connected, and the reference platform a of plane weighted platform B is fixed on the foundation of civil work I by earth anchor device 4.
Described plane weighted platform B comprises: reference platform a, horizontal hydraulic cylinder assembly b, vertically hydraulic cylinder assembly f and wheel are to positioning clamping device e, reference platform a wherein is bolted to connection together by the polylith cast iron platform, and be fixed on the foundation of civil work I by a plurality of earth anchor devices 4, two horizontal hydraulic cylinder assembly b and four vertical hydraulic cylinder assembly f are fixedlyed connected with reference platform a by socket head cap screw, two chain-wales d adopt bidirectional rolling slide rail mode and reference platform a sliding connection, fix two six-dimension force sensor c on each chain-wales d, wheel is fixedlyed connected with six-dimension force sensor c by the screw mode to the board slot guide rail 21 of positioning clamping device e.
Described horizontal hydraulic cylinder assembly b comprises: oil cylinder guide rail leading screw 24, radial force transducer 26, laterally oil cylinder supporting base 32 and laterally oil cylinder 34, wherein laterally the tail end of oil cylinder 34 is fixedly connected with horizontal oil cylinder extension spray lance 35, the front end axis hole of horizontal oil cylinder extension spray lance 35 and 42 coaxial connections of chain-wales center pit of chain-wales d, the coaxial radial force transducer 26 that is fixedly connected with of front end of horizontal oil cylinder 34, radial force transducer 26 is with laterally oil cylinder supporting base 32 is hinged, laterally oil cylinder supporting base 32 and laterally oil cylinder track base 36 sliding connections, one end of oil cylinder guide rail leading screw 24 is connected with leading screw screw 30 threaded engagement on being fixed on horizontal oil cylinder supporting base 32, the other end be fixed on horizontal oil cylinder track base 36 on coaxial connection of through hole of horizontal oil cylinder guide rail leading screw supporting base 33, laterally oil cylinder track base 36 is fixed on the reference platform a, and laterally oil cylinder 34 is independently controlled by servo-valve.
Described vertical hydraulic cylinder assembly f comprises: oil cylinder guide rail leading screw 24, vertical oil cylinder 25, radial force transducer 26 and vertical oil cylinder supporting base 31, wherein an end of oil cylinder guide rail leading screw 24 is connected with leading screw screw 30 threaded engagement on being fixed on vertical oil cylinder supporting base 31, the other end be fixed on vertical oil cylinder track base 29 on coaxial connection of through hole of vertical oil cylinder guide rail leading screw supporting base 28; Vertically the tail end of oil cylinder 25 is fixedly connected with vertical oil cylinder extension spray lance 23, vertically oil cylinder extension spray lance 23 is with vertically oil cylinder supporting base 31 is hinged, vertically oil cylinder supporting base 31 and vertically oil cylinder track base 29 sliding connections, the front end and radial force transducer 26 coaxial fixedlying connected of vertical oil cylinder 25, radial force transducer 26 is with to be fixed on the vertical thrust case of chain-wales on the chain-wales d 27 hinged, and vertically oil cylinder 25 is independently controlled by servo-valve.
The described wheel comprises locating clip clamping system e: two inner blocking type catch 18, board slot guide rail 21 and the wheel elbow jig 20 of fixing each wheel, described two inner blocking type catch 18 connect into integral body by adjusting screw rod 19, and with 21 sliding connections of board slot guide rail, wheel elbow jig 20 is fixedly linked by bolt and board slot guide rail 21.
Described adjustable gauge access bridge device C can regulate according to the bogie of different gauges, and shiftable track groove 6 is installed on the wheel gap bridge 5, is combined into the integral body that is slidingly connected, by adjusting the position of gap bridge leading screw 7 scalable moving track grooves 6.
The vertical thrust block seat assembly of described each bogie D comprises: T70 thrust leading screw 8, the vertical thrust crossbeam 10 of bogie and vertical thrust block seat 11, wherein T70 thrust leading screw 8 and vertical thrust crossbeam 10 sliding connections of bogie, the vertical thrust crossbeam 10 of bogie is fixed on vertical thrust block seat 11, and vertically thrust block seat 11 is fixed on the reference platform a.
Described each lift-on/lift-off type entablature pillar V comprises: lift-on/lift-off type entablature pillar 12 and some pillar foot bolt 13.Lift-on/lift-off type entablature pillar 12 is fixedlyed connected with foundation of civil work I by pillar foot bolt 13.
The vertical thrust block seat assembly of described vehicle body II comprises: vehicle body connecting link 14, thrust block seat sole plate 15, vehicle body hold-down support 16 and several thrust block seat foot bolt 17, wherein vehicle body connecting link 14 is fixedly connected on the vehicle body hold-down support 16, vehicle body hold-down support 16 and 15 sliding connections of thrust block seat sole plate, thrust block seat sole plate 15 is by being fixedly connected on the foundation of civil work I.
Described bogie displacement measurement system G comprises: vehicle frame grating displacement transducer 40, measurement plate 39, magnetic force gauge stand 38 and grating chi erecting frame 37, the magnetic force gauge stand 38 of measuring plate 39 1 sides wherein is installed is adsorbed on framework or wheel last, grating displacement transducer 40 is fixed on the grating chi erecting frame 37, the variation of the resistance strain gage resistance of sensor converts the voltage output of variation to by electric bridge, carry out signal condition by amplifying circuit, the machine interface circuit carries out the A/D conversion and delivers to Computer Processing as calculated.
Described hydraulic control system comprises: fixed displacement pump, servo-valve and servoamplifier control element, and this system adopts the servo closed loop force feedback control of electricity-liquid, and the oil sources of system is the motor combination pump, and its working pressure and off-load are set and control by electromagnetic relief valve;
Pressure is shown that by tensimeter the actuator of system is a hydraulic cylinder, and by the control of electrohydraulic servo valve, the piston of hydraulic cylinder is direction motion and the motion of drive bogie on request, and applies the power that sets;
Servo-valve adopts moving ferreous square motor nozzle baffle type two-stage electrohydraulic servo valve, is provided with the fine filter that band pollutes indication before each servo-valve;
System also is provided with the auxiliary element that comprises liquid level gauge, temperature regulator, oil suction and return filter, accumulator, and this hydraulic system and Control System of Microcomputer are carried out close-loop feedback control to experiment table.
Described hydraulic control system comprises: fixed displacement pump, the control of servo-valve and servoamplifier control element, and comprise: power, displacement and Boolean value output sensor, controller and transmitter, main control computer is an Industrial Control Computer, by data collecting card hydraulic system is carried out observing and controlling, the action command of monitor station is sent by Industrial Control Computer, enter the servo-valve amplifier by the D/A interface and carry out signal amplification and output current signal, motion frequency and amplitude according to software set, make hydraulic cylinder piston direction and the loading that moves back and forth of the power of setting on request, hydraulic cylinder drives the wheel of bogie to moving in stretching motion.
Described electric control system mainly is made up of hardware, software and safety guard, hardware comprises: A/D, D/A capture card, I/O interface card, Industrial Control Computer, switch board, stabilized voltage supply, servo control unit and signal conditioner, and the signal external output port with external command signal input and feedback; Software comprises: system management, control and management, servocontrol, vibration control, fault diagnosis and fault handling have the selection of different bogie test procedures, gather and the function of stores it and real-time display result automatically; The action of servo-valve is set and controlled to load, amplitude and frequency requirement that the user is required according to test, accordingly to reach the loading requirement; Control system possesses the harmony loading ability of 8 actuator interlocks, also can control each actuator separately simultaneously, and all kinds of dull loadings, cycle loading are set, and realizes the signal reproduction of given frequency, waveform, amplitude; Safety guard in the electric control system has warning and automatic shutdown function to displacement and power overload, the unexpected fault that ftractures of tested bogie that process of the test occurs.
Technique effect of the present invention is: a kind of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system, it is made up of mechanical system, test macro and control system.This parameter of bogie dynamic detection system has solved because factors such as manufacturing process make bogie can not reach the problem that design performance requires after manufacturing.Once can reach requirement by parameter detecting and the dynamic performance of adjusted bogie in the dynamic test process, greatly shortened the research and development of products cycle, a large amount of test funds have been saved, succeeding in developing of this detection system, to in the upgrade and replacement process of quickening China railways lorry product, play an important role, application prospect is very wide, has very considerable social benefit and economic benefit.
Description of drawings
Fig. 1 stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system;
Fig. 2 stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform;
Fig. 3 stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (front elevation);
Fig. 4 stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (vertical view);
Fig. 5 plane weighted platform synoptic diagram;
Fig. 6 reference platform synoptic diagram;
View under Fig. 7 reference platform;
Fig. 8 is adjustable gauge access bridge device synoptic diagram;
The vertical thrust assembly of Fig. 9 bogie synoptic diagram;
Figure 10 lift-on/lift-off type entablature pillar assembly synoptic diagram;
The vertical thrust block seat assembly of Figure 11 vehicle body synoptic diagram;
Figure 12 bogie simulation sleeper beam synoptic diagram;
Figure 13 wheel is to the positioning clamping device synoptic diagram;
The local hydraulic cylinder assembly enlarged diagram of Figure 14;
The vertical hydraulic cylinder assembly synoptic diagram of Figure 15;
The horizontal hydraulic cylinder assembly synoptic diagram of Figure 16;
The big synoptic diagram in Figure 17 local displacement detection system side;
Figure 18 displacement detection system synoptic diagram;
Figure 19 displacement detection system left view;
Figure 20 chain-wales synoptic diagram;
View under Figure 21 chain-wales;
The car synoptic diagram is crossed in the parameter testing of Figure 22 bogie vertical stiffness;
Figure 23 bogie longitudinal rigidity parameter testing process synoptic diagram;
Figure 24 bogie lateral stiffness parameter testing process synoptic diagram;
Figure 25 bogie bendind rigidity parameter testing process synoptic diagram;
Figure 26 bogie shear stiffness parameter testing process synoptic diagram;
The whole gyro rigidity parameter testing of Figure 27 bogie process synoptic diagram;
Figure 28 hydraulic control system synoptic diagram;
Figure 29 servo force close-loop feedback control system schematic;
Figure 30 electric control system and computer system synoptic diagram;
Among the figure: the I-foundation of civil work; The vertical thrust block seat assembly of II-vehicle body; III-stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform; IV-computer control chamber; V-lift-on/lift-off type entablature pillar; VI-car load to be measured;
The vertical loading of A-closed-loop diagonal-bracing type gantry; B-plane weighted platform; C-is adjustable gauge access bridge device; The vertical thrust assembly of D-bogie; The E-bogie; F-simulates sleeper beam; The G-displacement detection system;
The a-reference platform; The horizontal hydraulic cylinder assembly of b-; The c-six-dimension force sensor; The d-chain-wales; The e-wheel is to positioning clamping device; The vertical hydraulic cylinder assembly of f-;
1-2 * 4.4 * 0.5 meter cast iron platform; 2-3 * 6 * 0.5 meter cast iron platform; 3-2 * 6 * 0.5 meter cast iron platform; 4-earth anchor device; The 5-wheel is passed a bridge; 6-moving track groove; 7-gap bridge leading screw; 8-T70 thrust leading screw; The vertical thrust block seat bolt of 9-; The vertical thrust crossbeam of 10-bogie; The vertical thrust block seat of 11-; 12-lift-on/lift-off type entablature pillar; 13 pillar foot bolt; 14-vehicle body connecting link; 15-thrust block seat sole plate; 16-vehicle body hold-down support; 17-thrust block seat foot bolt; 18-inner blocking type catch; 19-adjusts screw rod; 20-wheel elbow jig; 21-board slot guide rail; 22-oil cylinder hinge; The vertical oil cylinder extension spray lance of 23-; 24-oil cylinder guide rail leading screw; The vertical oil cylinder of 25-; 26-radial force transducer; The vertical thrust case of 27-chain-wales; The vertical oil cylinder guide rail of 28-leading screw supporting base; The vertical oil cylinder track base of 29-; 30-leading screw screw; The vertical oil cylinder supporting base of 31-; The horizontal oil cylinder supporting base of 32-; The horizontal oil cylinder guide rail of 33-leading screw supporting base; The horizontal oil cylinder of 34-; The horizontal oil cylinder extension spray lance of 35-; The horizontal oil cylinder track base of 36-; 37-grating chi erecting frame; 38-magnetic force gauge stand; 39-measures plate; 40-framework grating displacement transducer; The vertical thrust case of 41-chain-wales rib-loop hole; 42-chain-wales center pit.
Embodiment
The embodiment that provides below in conjunction with accompanying drawing is described in further detail patent structure of the present invention.
Consult Fig. 1,2,3,4,5, the stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system is made up of mechanical system, test macro and control system, and wherein mechanical system comprises: the vertical thrust block seat assembly of a vehicle body II, stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III, two lift-on/lift-off type entablature pillar V.Wherein two lift-on/lift-off type entablature pillar V fixed and arranged are in the side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III, and the vertical thrust block seat assembly of vehicle body II fixed and arranged is in the front end of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III; Test macro comprises that 12 of positions move detection system G and four six-dimension force sensor c, wherein 12 displacement detection system G simulation of being arranged in bogie E respectively lower end and four wheel places of vehicle body of the place, two ends of beam F, car load VI to be measured that shake.Four six-dimension force sensor c are arranged in respectively under four wheels of bogie E, and with four wheels locating clip clamping system e are fixedlyed connected respectively; Control system mainly is made up of hydraulic control system, electric control system and computer system, finishes the collection of measuring-signal, the transmission of control signal and the processing of data by the Industrial Control Computer that is placed in computer control chamber IV.This system can realize two kinds of detection of dynamic functions of car load bogie and independent steering frame stiffness parameters.
Consult Fig. 1,2,3,22, the vertical loading of closed-loop diagonal-bracing type gantry A of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III is fixedlyed connected with the reference platform a of plane weighted platform B, in independent steering frame stiffness parameters testing process, the vertical loading of closed-loop diagonal-bracing type gantry A can carry out the dynamic synchronization loading and the deflection loading of vertical load to simulation sleeper beam F, and can carry out horizontal X to the location to bogie, and then bogie applied different vertical loads, realize the detection of vertical stiffness parameter.In car load bogie rigidity parameter detecting process, the upper end header portion of the vertical loading of closed-loop diagonal-bracing type gantry A can be transferred to a side and hangs on lift-on/lift-off type entablature pillar V, to guarantee that vehicle body sails on the weighted platform B of plane, and can to bogie and vehicle body carry out horizontal X to the location, thereby realize the detection of dynamic of car load bogie rigidity parameter.
Consult Fig. 5,6,7, reference platform a is made up of two 2 * 4.4 * 0.5 meter cast iron platforms 1, two 3 * 6 * 0.5 meter cast iron platforms 2, two 2 * 6 * 0.5 meter cast iron platforms 3 and a plurality of earth anchor device 4, every block casting iron platform all is fixed together by bolt mode and other cast iron platform, and fixedly connected with foundation of civil work I by a plurality of earth anchor devices 4, every block casting iron platform all adopts cast iron casting technology, the inner cellular structure that adopts is to reduce total quality and proof strength, by adjusting a plurality of earth anchor devices 4 to regulate the integral level degree of six platforms.
Consult Fig. 5,14,15,16,20,23,24,25,26,27, laterally hydraulic cylinder assembly b comprises: oil cylinder hinge 22, oil cylinder guide rail leading screw 24, radial force transducer 26, leading screw screw 30, horizontal oil cylinder supporting base 32, horizontal oil cylinder guide rail leading screw supporting base 33, horizontal oil cylinder 34, horizontal oil cylinder extension spray lance 35 and horizontal oil cylinder track base 36, wherein laterally the tail end of oil cylinder 34 is fixedlyed connected with horizontal oil cylinder extension spray lance 35 by screw, laterally 42 coaxial connections of chain-wales center pit of the front end axis hole of oil cylinder extension spray lance 35 and chain-wales d.Laterally the front end of oil cylinder 34 is by screw and radial force transducer 26 coaxial fixedlying connected, radial force transducer 26 is hinged with horizontal oil cylinder supporting base 32 by oil cylinder hinge 22, laterally oil cylinder supporting base 32 and laterally oil cylinder track base 36 sliding connections, leading screw screw 30 is fixedlyed connected with horizontal oil cylinder supporting base 32 by screw, one end of oil cylinder guide rail leading screw 24 and leading screw screw 30 rib-loops are connected, the other end and horizontal coaxial connection of through hole of oil cylinder guide rail leading screw supporting base 33, laterally oil cylinder guide rail leading screw supporting base 33 adopts screw to fixedly connected with horizontal oil cylinder track base 36, and laterally oil cylinder track base 36 is fixedlyed connected with reference platform a by screw; Vertically hydraulic cylinder assembly f comprises: oil cylinder hinge 22, vertical oil cylinder extension spray lance 23, oil cylinder guide rail leading screw 24, vertical oil cylinder 25, radial force transducer 26, the vertical thrust case 27 of chain-wales, vertical oil cylinder guide rail leading screw supporting base 28, vertical oil cylinder track base 29, leading screw screw 30 and vertical oil cylinder supporting base 31, wherein vertically the tail end of oil cylinder 25 is fixedlyed connected with vertical oil cylinder extension spray lance 23 by screw, vertically oil cylinder extension spray lance 23 is hinged with vertical oil cylinder supporting base 31 by oil cylinder hinge 22, vertically oil cylinder supporting base 31 and vertically oil cylinder track base 29 sliding connections, leading screw screw 30 is fixedlyed connected with vertical oil cylinder supporting base 31 by screw, one end of oil cylinder guide rail leading screw 24 and leading screw screw 30 rib-loops are connected, the other end and vertical coaxial connection of through hole of oil cylinder guide rail leading screw supporting base 28, vertically oil cylinder guide rail leading screw supporting base 28 adopts screw to fixedly connected with vertical oil cylinder track base 29, and vertically oil cylinder track base 29 is fixedlyed connected with reference platform a by screw; Vertically the front end of oil cylinder 25 is by screw and radial force transducer 26 coaxial fixedlying connected, radial force transducer 26 usefulness the vertical thrust case of oil cylinder hinge 22 and chain-wales 27 hinged, the vertical thrust case 27 of chain-wales is connected by the vertical thrust case of chain-wales rib-loop hole 41 rib-loops of screw connecting mode and chain-wales d.By rotary oil cylinder guide rail leading screw 24 can realize two horizontal oil cylinders 34 at the adjustment of vertical Y position and four vertical oil cylinders 25 at horizontal X to the adjustment of position, to guarantee the needs of different model bogie test.By independent control to six table oil cylinders, can carry out dynamic load laterally, vertically reaching gyratory directions to two chain-wales d, and then to the wheel of bogie E to loading, detection of dynamic with lateral stiffness, longitudinal rigidity, bendind rigidity, shear stiffness and the whole gyro rigidity parameter of finishing bogie, wherein the control signal of each oil cylinder servo-valve is sent by Industrial Control Computer, carries out action commands such as loading, unloading, pressurize.
Consult Fig. 5,13, consider that wheel is to aspects such as the accurate positioning and the convenience that is installed, wheel adopts convenient, flexible manual adjustments mode to locating clip clamping system e, two inner blocking type catch 18 wherein fixing each wheel connect into integral body by adjusting screw rod 19, and with 21 sliding connections of board slot guide rail, wheel elbow jig 20 is fixedly linked by bolt and board slot guide rail 21.By to adjusting the adjustment of screw rod 19 and wheel elbow jig 20, can play booster action to test to wheel to positioning clamping.
Consult Fig. 8, adjustable gauge access bridge device C can regulate according to the bogie of different gauges, shiftable track groove 6 is installed on the wheel gap bridge 7, be combined into the integral body that is slidingly connected, by adjusting the position of gap bridge leading screw 5 scalable moving track grooves 6, thereby realize that different gauge bogies appear on the stage process and position fixing process accurately and reliably.
Consult Fig. 2,3,4,9, the vertical thrust block seat assembly of each bogie D comprises: the vertical thrust crossbeam of two T70 thrust leading screws 8, some vertical thrust block seat bolts 9, bogie 10, two vertical thrust block seats 11.Wherein T70 thrust leading screw 8 and vertical thrust crossbeam 10 sliding connections of bogie, the vertical thrust crossbeam 10 of bogie is fixedlyed connected with vertical thrust block seat 11 by bolt, and vertically thrust block seat 11 is fixedlyed connected with reference platform a by bolt.In testing process, T70 thrust leading screw 8 by the vertical thrust block seat assembly of bogie D leans on the framework of bogie E, guarantee bogie frame vertical X to the location, consider the height difference of different model bogie, therefore vertically thrust block seat 11 is provided with numerous vertical Z to the rib-loop hole, the vertical thrust crossbeam 10 of bogie can carry out the adjustment of vertical Z to setting height(from bottom) according to the bogie model, and then adjusts the height of T70 thrust leading screw 8.
Consult Fig. 1,10, each lift-on/lift-off type entablature pillar V comprises: lift-on/lift-off type entablature pillar 12 and some pillar foot bolt 13.Lift-on/lift-off type entablature pillar 12 is fixedlyed connected with foundation of civil work I by pillar foot bolt 13.Two lift-on/lift-off type entablature pillar V are installed on the side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform III, to guarantee that vehicle body can freely enter the detection position.
Consult Fig. 1,11, the vertical thrust block seat assembly of vehicle body II comprises: vehicle body connecting link 14, thrust block seat sole plate 15, vehicle body hold-down support 16 and several thrust block seat foot bolt 17.Wherein vehicle body connecting link 14 is fixedlyed connected with vehicle body hold-down support 16 by screw, vehicle body hold-down support 16 and 15 sliding connections of thrust block seat sole plate, and thrust block seat sole plate 15 is fixedlyed connected with foundation of civil work I by thrust block seat foot bolt 17.Difference according to different model automobile body length, vehicle body hold-down support 16 can vertical Y of thrust block seat sole plate 15 to the position freely adjust, and by the relative position of the bolt tightening vehicle body hold-down support on the vehicle body hold-down support 16 16 with thrust block seat sole plate 15, in addition, vehicle body hold-down support 16 is provided with numerous vertical Z to the rib-loop hole, and vehicle body connecting link 14 carries out vertical Z to adjustment according to the unlike signal bodywork height at vehicle body hold-down support 16.
Consult Figure 17,18,19, bogie displacement measurement system G comprises vehicle frame grating displacement transducer 40, measure plate 39, magnetic force gauge stand 38 and grating chi erecting frame 37, the magnetic force gauge stand 38 of measuring plate 39 1 sides wherein is installed is adsorbed on framework or wheel last, grating displacement transducer 40 is fixed on the grating chi erecting frame 37, when the framework of bogie and wheel when relative displacement is arranged, be adsorbed in framework or wheel and will move with respect to grating chi erecting frame 37 together with measuring plate 39, measure required displacement signal thereby grating displacement transducer 40 produces to last magnetic force gauge stand 38.The variation of the resistance strain gage resistance of grating displacement transducer 40 converts the voltage output of variation to by electric bridge, carries out signal condition by amplifying circuit, and the machine interface circuit carries out the A/D conversion and delivers to computing machine as calculated.
Consult Figure 28,29,30, control system comprises hydraulic control system, electric control system and computer system.
Wherein hydraulic control system comprises control elements such as fixed displacement pump, servo-valve, servoamplifier, adopts the servo closed loop force feedback control of electricity-liquid, and the oil sources of system is the motor combination pump, and its working pressure and off-load are set and control by electromagnetic relief valve.Pressure is shown that by tensimeter the actuator of system is a hydraulic cylinder, and by the control of electrohydraulic servo valve, the piston of hydraulic cylinder is direction motion and the motion of drive bogie on request, and applies the power that sets.What servo-valve adopted is the two-stage electrohydraulic servo valve, is provided with the fine filter that band pollutes indication before each servo-valve.System also is provided with the auxiliary element that comprises liquid level gauge, temperature regulator, oil suction and return filter, accumulator, and this hydraulic system and Control System of Microcomputer are carried out close-loop feedback control to experiment table.The main control computer of hydraulic control system is an Industrial Control Computer, by data collecting card pilot system is carried out observing and controlling, the action command of monitor station is sent by Industrial Control Computer, enter the servo-valve amplifier by the D/A interface and carry out the signal amplification, output current signal, motion frequency and amplitude according to software set, make hydraulic cylinder piston direction and the loading that moves back and forth of the power of setting on request, hydraulic cylinder drives the wheel of bogie simultaneously to motion, and respectively by six-dimension force sensor group and grating displacement transducer ergometry and displacement, detected displacement signal and force signal enter respectively among the A/D of data collecting card after nursing one's health.Stress when bogie need come the analog orbit vehicle movement by the stressed spectrum of a definite form, to the input that turns to booster is to be provided by valve control hydraulic cylinder, therefore be actually the stressed spectrum of exporting a definite form by valve control hydraulic cylinder and come bogie is loaded the bogie family curve that computing machine obtains requiring by data processing; Electric control system mainly is made up of hardware, software and safety guard.Hardware comprises: A/D, D/A capture card, I/O interface card, Industrial Control Computer, switch board, stabilized voltage supply, servo control unit, task management unit, signal conditioner have external command signal input and feedback signal external output port.Software comprises: system management, control and management, servocontrol, vibration control, fault diagnosis, fault handling have the selection of different bogie test procedures, gather and the function of stores it and real-time display result automatically.The user can set and control the action of servo-valve, to reach the loading requirement accordingly according to requirements such as the required load of test, amplitude, frequencies.Control system possesses the harmony loading ability of 8 actuator interlocks, also can control each actuator separately simultaneously, and all kinds of dull loadings, cycle loading can be set, and realizes the signal reproduction of given frequency, waveform, amplitude.(displacement and power) overload that safety guard in the control system occurs process of the test, the fault that is ftractureed by the test specimen accident have warning and automatic shutdown function.

Claims (13)

1. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system, mainly by mechanical system, test macro and control system are formed, it is characterized in that, described mechanical system comprises: a vertical thrust block seat assembly of vehicle body (II), a stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (III), two lift-on/lift-off type entablature pillars (V), wherein two lift-on/lift-off type entablature pillars (V) fixed and arranged is in a side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (III), and the vertical thrust block seat assembly of vehicle body (II) fixed and arranged is in the front end of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (III); Test macro comprises 12 displacement detection systems (G) and four six-dimension force sensors (c), 12 displacement detection systems (G) simulation of being arranged in bogie (E) respectively lower end and four wheel places of vehicle body of place, two ends, car load to be measured (VI) of beam (F) that shake wherein, four six-dimension force sensors (c) are arranged in respectively under four wheels of bogie (E), and with four wheels locating clip clamping system (e) are fixedlyed connected respectively; Control system mainly is made up of hydraulic control system, electric control system and computer system, and concentrated being arranged in the computer control chamber (IV), wherein computer control chamber (IV) fixed and arranged is in a side of stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (III).
2. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, described stiffness parameters of closed-loop diagonal-bracing type vehicle bogies detection of dynamic platform (III) is mainly by the vertical loading of closed-loop diagonal-bracing type gantry (A), plane weighted platform (B), adjustable gauge access bridge device (C), vertical thrust assembly of bogie (D) and simulation sleeper beam (F) are formed, fixedly connected with the reference platform (a) of plane weighted platform (B) in the vertical loading of described closed-loop diagonal-bracing type gantry (A), two adjustable gauge access bridge devices (C) are by on the reference platform (a) that is bolted to plane weighted platform (B), the vertical thrust assembly of each bogie (D) is fixedlyed connected with reference platform (a) by a plurality of vertical thrust block seat bolts (9), simulation sleeper beam (F) floats with bogie (E) and is connected, and the reference platform (a) of plane weighted platform (B) is fixed on the foundation of civil work (I) by earth anchor device (4).
3. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 2, it is characterized in that, described plane weighted platform (B) comprising: reference platform (a), horizontal hydraulic cylinder assembly (b), vertically hydraulic cylinder assembly (f) and wheel are to positioning clamping device (e), reference platform wherein (a) is to be bolted to connection together by the polylith cast iron platform, and be fixed on the foundation of civil work (I) by a plurality of earth anchor devices (4), two horizontal hydraulic cylinder assemblies (b) and four vertical hydraulic cylinder assemblies (f) are fixedlyed connected with reference platform (a) by socket head cap screw, two chain-waless (d) adopt bidirectional rolling slide rail mode and reference platform (a) sliding connection, fix two six-dimension force sensors (c) on each chain-wales (d), wheel is fixedlyed connected with six-dimension force sensor (c) by the screw mode to the board slot guide rail (21) of positioning clamping device (e).
4. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 3, it is characterized in that, described horizontal hydraulic cylinder assembly (b) comprising: oil cylinder guide rail leading screw (24), radial force transducer (26), laterally oil cylinder supporting base (32) and laterally oil cylinder (34), wherein laterally the tail end of oil cylinder (34) is fixedly connected with horizontal oil cylinder extension spray lance (35), the front end axis hole of horizontal oil cylinder extension spray lance (35) and coaxial connection of chain-wales center pit (42) of chain-wales (d), the coaxial radial force transducer (26) that is fixedly connected with of front end of horizontal oil cylinder (34), radial force transducer (26) is with laterally oil cylinder supporting base (32) is hinged, laterally oil cylinder supporting base (32) and laterally oil cylinder track base (36) sliding connection, one end of oil cylinder guide rail leading screw (24) is connected with leading screw screw (30) threaded engagement on being fixed on horizontal oil cylinder supporting base (32), the other end be fixed on horizontal oil cylinder track base (36) on coaxial connection of through hole of horizontal oil cylinder guide rail leading screw supporting base (33), laterally oil cylinder track base (36) is fixed on the reference platform (a), and laterally oil cylinder (34) is independently controlled by servo-valve.
5. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 3, it is characterized in that, described vertical hydraulic cylinder assembly (f) comprising: oil cylinder guide rail leading screw (24), vertical oil cylinder (25), radial force transducer (26) and vertical oil cylinder supporting base (31), wherein an end of oil cylinder guide rail leading screw (24) is connected with leading screw screw (30) threaded engagement on being fixed on vertical oil cylinder supporting base (31), the other end be fixed on vertical oil cylinder track base (29) on coaxial connection of through hole of vertical oil cylinder guide rail leading screw supporting base (28); Vertically the tail end of oil cylinder (25) is fixedly connected with vertical oil cylinder extension spray lance (23), vertically oil cylinder extension spray lance (23) is with vertically oil cylinder supporting base (31) is hinged, vertically oil cylinder supporting base (31) and vertically oil cylinder track base (29) sliding connection, the front end and coaxial the fixedlying connected of radial force transducer (26) of vertical oil cylinder (25), radial force transducer (26) is hinged with the vertical thrust case of chain-wales (27) that is fixed on the chain-wales (d), and vertically oil cylinder (25) is independently controlled by servo-valve.
6. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 3, it is characterized in that, the described wheel comprising locating clip clamping system (e): two inner blocking type catch (18), board slot guide rail (21) and the wheel elbow jig (20) of fixing each wheel, described two inner blocking type catch (18) connect into integral body by adjusting screw rod (19), and with board slot guide rail (21) sliding connection, wheel elbow jig (20) is fixedly linked by bolt and board slot guide rail (21).
7. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 2, it is characterized in that, described adjustable gauge access bridge device (C) can be regulated according to the bogie of different gauges, shiftable track groove (6) is installed on the wheel gap bridge (5), be combined into the integral body that is slidingly connected, by adjusting the position of gap bridge leading screw (7) scalable moving track groove (6).
8. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, the vertical thrust block seat assembly of described each bogie (D) comprising: T70 thrust leading screw (8), the vertical thrust crossbeam of bogie (10) and vertical thrust block seat (11), wherein T70 thrust leading screw (8) and the vertical thrust crossbeam of bogie (10) sliding connection, the vertical thrust crossbeam of bogie (10) is fixed on vertical thrust block seat (11), and vertically thrust block seat (11) is fixed on the reference platform (a).
9. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, described each lift-on/lift-off type entablature pillar (V) comprising: lift-on/lift-off type entablature pillar (12) and some pillar foot bolt (13), lift-on/lift-off type entablature pillar (12) is fixedlyed connected with foundation of civil work (I) by pillar foot bolt (13).
10. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, the vertical thrust block seat assembly of described vehicle body (II) comprising: vehicle body connecting link (14), thrust block seat sole plate (15), vehicle body hold-down support (16) and several thrust block seat foot bolt (17), wherein vehicle body connecting link (14) is fixedly connected on the vehicle body hold-down support (16), vehicle body hold-down support (16) and thrust block seat sole plate (15) sliding connection, thrust block seat sole plate (15) is fixedly connected on the foundation of civil work (I).
11. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, described bogie displacement measurement system (G) comprising: vehicle frame grating displacement transducer (40), measure plate (39), magnetic force gauge stand (38) and grating chi erecting frame (37), wherein be installed in the magnetic force gauge stand (38) of measuring plate (39) one sides and be adsorbed on framework or wheel last, grating displacement transducer (40) is fixed on the grating chi erecting frame (37), the variation of the resistance strain gage resistance of sensor converts the voltage output of variation to by electric bridge, carry out signal condition by amplifying circuit, the machine interface circuit carries out the A/D conversion and delivers to Computer Processing as calculated.
12. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, described hydraulic control system comprises: fixed displacement pump, the control of servo-valve and servoamplifier control element, and comprise: power, displacement and Boolean value output sensor, controller and transmitter, main control computer is an Industrial Control Computer, by data collecting card hydraulic system is carried out observing and controlling, the action command of monitor station is sent by Industrial Control Computer, enter the servo-valve amplifier by the D/A interface and carry out signal amplification and output current signal, motion frequency and amplitude according to software set, make hydraulic cylinder piston direction and the loading that moves back and forth of the power of setting on request, hydraulic cylinder drives the wheel of bogie to moving in stretching motion.
13. stiffness parameters of closed-loop diagonal-bracing type vehicle bogies dynamic detection system according to claim 1, it is characterized in that, described electric control system mainly is made up of hardware, software and safety guard, hardware comprises: A/D, D/A capture card, I/O interface card, Industrial Control Computer, switch board, stabilized voltage supply, servo control unit and signal conditioner, and the signal external output port with external command signal input and feedback; Software comprises: system management, control and management, servocontrol, vibration control, fault diagnosis and fault handling have the selection of different bogie test procedures, gather and the function of stores it and real-time display result automatically; The action of servo-valve is set and controlled to load, amplitude and frequency requirement that the user is required according to test, accordingly to reach the loading requirement; Control system possesses the harmony loading ability of 8 actuator interlocks, also can control each actuator separately simultaneously, and all kinds of dull loadings, cycle loading are set, and realizes the signal reproduction of given frequency, waveform, amplitude; Safety guard in the electric control system has warning and automatic shutdown function to displacement and power overload, the unexpected fault that ftractures of tested bogie that process of the test occurs.
CN2009100670248A 2009-05-31 2009-05-31 System for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies CN101561339B (en)

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