CN102004041A - Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed - Google Patents
Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed Download PDFInfo
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- CN102004041A CN102004041A CN 201010534434 CN201010534434A CN102004041A CN 102004041 A CN102004041 A CN 102004041A CN 201010534434 CN201010534434 CN 201010534434 CN 201010534434 A CN201010534434 A CN 201010534434A CN 102004041 A CN102004041 A CN 102004041A
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Abstract
The invention relates to a railway vehicle bogie hanging natural vibration characteristic detection equipment, in particular to a semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed. The test bed is mainly composed of a test bed positioning and auxiliary supporting device, a test bed excitation loading device and a semi-vehicle mass simulation loading device; wherein the test bed positioning and auxiliary supporting device is fixedly connected onto a test bed concrete foundation, the test bed excitation loading device is fixedly connected with a construction member on the test bed positioning and auxiliary supporting device, the semi-vehicle mass simulation loading device is connected with the swing bolster or air spring of a bogie to be tested and is fixedly connected with the construction member on the test bed positioning and auxiliary supporting device, the test bed can utilize a mass block to load the bogie, so as to achieve the aim of simulating semi-vehicle mass; and an electro-hydraulic servo system cooperatively controls actuators in different directions, so as to excite the bogie to be tested, thus meeting the requirement of natural vibration frequency test in bogie frame transverse, yawing, nodding and side rolling vibration modes.
Description
Technical field
The present invention relates to rail vehicle truck and hang the self-vibration characteristic checkout equipment, particularly a kind of based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table.
Background technology
Rail vehicle is a many-degrees of freedom system, according to the characteristic of multi-freedom-degree vibration system, should have the vibration vibration shape and the natural frequency of vibration as car body, the framework of mass, generally is referred to as the vehicle hanging self-vibration characteristic.According to the suspension degree of freedom that hangs rigid body, the motion of vehicle body of railway vehicle and bogie frame has: vertical (sink-float), horizontal (traversing), shake the head, nod and sidewinder.At the trial, the vibration shape of Ce Dinging is forced exciting to corresponding degree of freedom as required, handles out the natural frequency of vibration by responding.
Bogie is as the traveling position of rail vehicle, be guarantee the rail vehicle operation at a high speed, safety, critical component stably.Along with rail vehicle improving constantly of EMU travelling speed particularly, the bogie dynamic performance is had higher requirement.Bogie hangs the suspension self-vibration characteristic that self-vibration characteristic is directly connected to rail vehicle whole, considers that the rail vehicle natural frequency of vibration generally is controlled at 10Hz, and for fear of car body resonance, bogie is nodded and the natural frequency of vibration that rises and falls should be controlled at certain limit.This just requires carrying out rail vehicle particularly in the EMU bogie R﹠D 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, bogie hangs self-vibration characteristic and whether reaches designing requirement, must obtain by the rail vehicle testing table, and carry out suitable correction.
The rail vehicle testing table mostly is the complete vehicle test platform both at home and abroad at present, mainly be divided into three kinds of patterns: roller tray, rolling shaking table and actuating vibration table, wherein roll shaking table and actuating vibration table have excitation system, carry out the test of rolling stock self-vibration characteristic thereby can carry out exciting to rail vehicle whole.It is representative that state's outer rolling shaking table rolls the testing table that shakes with Munich, Germany, this testing table is the circuit simulator of a simulation rail vehicle operation under laboratory condition, be mainly used in the performance of running stability of measuring rolling stock, test bogie and each parts are to the influence of performance of running stability; External actuating vibration table is representative with U.S. wheel rail dynamics testing laboratory, and its self-vibration performance test stand is used for studying the characteristic of suspension, problems such as the natural frequency of rolling stock and parts, fatigue strength.Domestic 6 rolling vibration tables of rolling stock car load by the development of traction power National Key Laboratory of Southwest Jiaotong University are rail vehicle whole testing tables that the world today is largest, function is maximum; Whole vehicle vibration table by four directions, Qingdao vehicle Research Institute can be realized the mensuration of bogie suspension parameter and the mensuration of Vehicular system mode of oscillation.Though the rail vehicle testing table can carry out the self-vibration characteristic test of vehicle, it generally belongs to the comprehensive test platform, and test event is extensive, testing table research and development, manufacturing, use and maintenance cost height; The rail vehicle testing table can only be tested car load usually simultaneously, can't carry out the self-vibration characteristic test to bogie separately, this must fit together car body and bogie when just causing in the bogie R﹠D process bogie self-vibration characteristic being tested, cause the bogie self-vibration characteristic test period long and experimentation cost is high, thereby increase the R﹠D cycle of bogie.
Be used for the equipment that the bogie parameters detects and how do not consider car body when test, but at bogie top mounting platform simulation car body, this kind equipment focuses mostly on and is, two is, reverses and the integral hanging parameter in one of test assembling trailing bogie.In recent years, German Wind-Hoff company, Unite States Standard (USS) bogie of car company (SCT) and Canadian Bombadier Inc were all studied the bogie detection technique, had proposed the corresponding techniques scheme and had developed the truck parameter measuring testing table.Domestic development along with rail vehicle, each rolling stock manufacturing company and research institutions continue to increase the R﹠D intensity to steering frame parameter detection equipment, and bogie univers parameter checkout equipment is all being set up in Changchun Railway Vehicle Co., Ltd., Zhuzhou Electric Locomotive Plant, four directions, Qingdao vehicle research institute a few days ago.But the truck parameter measuring testing table of exploitation can only carry out the measurement of bogie suspension parameter (rigidity and damping) at present, can't carry out the research of bogie self-vibration characteristic (vibration shape and frequency).
Therefore, develop rational in infrastructure, test result is accurate, method of operating is simple, the test period is short, the rail vehicle truck that the working service cost is low hangs the self-vibration characteristic testing table, and check under the half car quality emulation mode bogie to hang self-vibration characteristic with this whether to adhere to specification, guaranteeing security, the stationarity of vehicle operating and shortening the bogie R﹠D cycle has been needing to be resolved hurrily of a task.
Summary of the invention
The object of the present invention is to provide and a kind ofly hang the self-vibration characteristic testing table based on the bogie under the half car quality emulation mode, this testing table can utilize mass that bogie is loaded, to reach the purpose of simulation half car quality; By electrohydraulic servo system coordinate control each to actuator to tested steering framing wheel to carrying out exciting, to satisfy the vertical sink-float of bogie frame, the laterally requirement of traversing, vibration shape natural frequency of vibration test such as shake the head, nod and sidewinder.
Purpose of the present invention is achieved through the following technical solutions, and accompanying drawings is as follows:
Provided by the invention based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, mainly form by testing table location and auxiliary support apparatus A, testing table exciting charger B and half car quality analog loading device C, it is characterized in that: testing table location and auxiliary support apparatus A are connected on the testing table concrete foundation III, install and fix the position and for each provides the counter-force supporting role to actuator for testing table location, loading and servicing unit provide; Member on testing table exciting charger B and testing table location and the auxiliary support apparatus A is connected, and is used for fixing the tested bogie II of constraint and hangs the self-vibration characteristic test vibration shape according to bogie and detect tested bogie II wheel carrying out the exciting of a definite form; The bolster of half car quality analog loading device C and tested bogie II or air spring connects and be connected by the member on connecting rod and testing table location and the auxiliary support apparatus A carries out vertical loading to simulate half car quality to tested bogie II.
Described testing table is located and auxiliary support apparatus A comprises two cover testing tables location column assembly a, test battery platform supplemental support assembly b, two vertical actuator installation cast iron platform c, horizontal actuator installation cast iron platform d, eight vertical actuator counter-force seats installation ground rail e and a horizontal buffer formula connecting rod fixed supporting seat f, two cover testing table location column assembly a are symmetrically arranged in testing table longitudinal centre line both sides, and column wherein and cross-brace bottom are by being bolted on the testing table concrete foundation III; Testing table supplemental support assembly b comprises gate beam fixed supporting seat 6 and supplemental support crossbeam 5, gate beam fixed supporting seat 6 is bolted on the ground rail among the testing table concrete foundation III by the T type, and supplemental support crossbeam 5 two ends connect clamping plate 8 by the testing table column and fixedly connected by the testing table head tree 1 among screw rod and nut and the testing table location column assembly a with the supplemental support crossbeam; Vertical actuator install cast iron platform c and laterally actuator cast iron platform d is installed all by being bolted on the testing table concrete foundation III, all be shaped on T type groove on it respectively with installing and fixing vertical actuator i and horizontal actuator j and provide counter-force for vertical actuator i and horizontal actuator j; Per two is a unit among vertical actuator counter-force seat installation ground rail e, is embedded in four angles of testing table concrete foundation III in advance, and each unit is used for installing and fixing vertical actuator counter-force seat assembly g; Horizontal buffer formula connecting rod fixed supporting seat f is shaped on T type groove and is used for installing and fixing half car quality analog loading device horizontal buffer formula connecting rod ASSY o by being bolted on the pre-embedded steel slab that is embedded in advance among the testing table concrete foundation III on it.
Described testing table location column assembly a comprises two testing table head trees 1, a testing table heel post 2, four testing table oblique volumn supportings 3 and a testing table column connecting column 4, two testing table head trees 1 and testing table heel post 2 bottoms are by being bolted on the pre-embedded steel slab of building in testing table concrete foundation III, top is separately fixed on three faces of testing table column connecting column 4 by bolt, testing table oblique volumn supporting 3 one ends are fixed on the pre-embedded steel slab of building in testing table concrete foundation III by bolt and hinged support, the other end is fixed on the testing table head tree 1 by bolt and hinged support, testing table oblique volumn supporting 3 is used for improving rigidity and the natural frequency of testing table location column assembly a, testing table location column assembly a installs and fixes the basis as testing table supplemental support assembly b, and provides the space for the follow-up function expansion of testing table.
Described testing table supplemental support assembly b comprises two supplemental support crossbeams 5, a supplemental support crossbeam fixed supporting seat 6, eight vertical fixed connecting rods connect clamping plate 7, eight testing table columns connect clamping plate 8 with the supplemental support crossbeam and a supplemental support crossbeam connects clamping plate 9 with fixed mounting base, supplemental support crossbeam fixed supporting seat 6 bottoms are bolted on the ground rail that is cast among the testing table concrete foundation III by the T type, be shaped on the supplemental support crossbeam fixed supporting seat 6 and be used for the T type groove of support fixation supplemental support crossbeam 5, and by fixed supporting seat connection clamping plate 9, screw rod and nut and fixedly supplemental support crossbeam 5 add and fasten, two supplemental support crossbeams 5 connect clamping plate 8 by the testing table column with the supplemental support crossbeam, screw rod and nut and testing table head tree 1 are fixedly clamped, the installation site of supplemental support crossbeam fixed supporting seat 6 on testing table concrete foundation III ground rail is adjustable, it is a unit that per two vertical fixed connecting rods connect clamping plate 7, be fixed on the supplemental support crossbeam 5 by screw rod and nut, be shaped on the threaded hole that is used to install and fix the vertical fixed connecting rod p of half car quality analog loading device on it.
Described testing table exciting charger B is made up of the testing table exciting loading unit that two covers are symmetrically arranged in the testing table cross central line, every cover exciting loading unit comprises two vertical actuator counter-force seat assembly g, a testing table exciting crossbeam h, four vertical actuator i, two vertical actuator j, a horizontal actuator k, two movable rail U types are kept off a car and are taken turns anchor clamps 1 and some actuator adjustment platform m, exciting crossbeam h is by four vertical actuator i, two vertical actuator j are connected with testing table concrete foundation III with a horizontal actuator k, exciting crossbeam h goes up Plane Installation the movable rail U type wheel jig 1 of keeping off a car, and exciting crossbeam h hangs self-vibration characteristic according to bogie and tests requirement that the different vibration shapes detect that each exciting force to actuator is passed to tested bogie II wheel is right under the control of electrohydraulic servo system.
Described four vertical actuator i one ends by T type bolt and hinged support and vertical actuator cast iron platform c are installed or actuator adjustment platform m is fixedlyed connected, the other end is fixedlyed connected with exciting crossbeam h bottom surface with hinged support by bolt, and vertical actuator i provides vertical support and vertical exciting acting force is provided at the trial for exciting crossbeam h;
Described vertical actuator j one end is fixedlyed connected with vertical actuator counter-force seat assembly g with hinged support by bolt, the other end is fixedlyed connected with exciting crossbeam h side with hinged support by bolt, provide vertical supplemental support to guarantee exciting crossbeam h stress balance when vertically actuator j provides longitudinal bracing and carries out vertical or horizontal exciting at the trial for the exciting crossbeam, provide vertical exciting acting force for the follow-up function expansion of testing table simultaneously;
Described horizontal actuator k one end by T type bolt and hinged support and horizontal actuator cast iron platform d is installed or actuator adjustment platform m is fixedlyed connected, the other end is fixedlyed connected with exciting crossbeam h end face with hinged support by bolt, and laterally actuator k provides cross-brace and horizontal exciting acting force is provided at the trial for exciting crossbeam h;
Described movable rail U type is kept off a car wheel jig 1 by being bolted to upward plane of exciting crossbeam h, wheel left exciting crossbeam h when it was used for clamping wheel with the tested bogie II of locking and prevents to test, and satisfied the requirement of different gauge bogie tests by adjusting the keep off a car installation site on wheel jig 1 plane on exciting crossbeam h of movable rail U type;
Described actuator is adjusted platform m and is adopted casting technique to make, be shaped on T type groove on it, being bolted to vertical actuator by the T type during use installs on cast iron platform c and the horizontal actuator installation cast iron platform d, thereby vertical actuator i and horizontal actuator k one end are fixed on the distance that actuator adjustment platform m goes up shortening actuator two ends hinged support by T type bolt and hinged support, improve testing table integral body natural frequency.
6, describedly hang the self-vibration characteristic testing table according to claim 1 or 4 based on the bogie under the half car quality emulation mode, it is characterized in that, described vertical actuator counter-force seat assembly g comprises a vertical actuator reaction support 14, a vertical actuator counter-force bar 13, a tensioner cover 12, a tensioner cover set collar 11 and the pre-pipe laying 10 of vertical actuator counter-force seat, vertically the pre-pipe laying 10 of actuator counter-force seat is embedded among the testing table concrete foundation III in advance, be used for installing and fixing tensioner cover set collar 11 and vertical actuator counter-force bar 13 flexible spaces that provide are provided, tensioner cover set collar 11 is bolted to connection on vertical pre-pipe laying 10 of actuator counter-force seat, tensioner is overlapped 12 outer walls and tensioner cover set collar 11 inwall frictional fit, vertically actuator counter-force bar 13 outer walls and tensioner are overlapped 12 inwall frictional fit, and can vertically stretch in the pre-pipe laying 10 of actuator counter-force seat, tensioner is overlapped the outer wall and the tensioner of 12 outer shrouds and is overlapped between the inwall of set collar 11, and be tightened by the bolt in the tensioner cover 12 between inwall that encircles in the tensioner cover 12 and counter-force bar 13 outer walls, vertically actuator reaction support 14 underrun T types are bolted on vertical actuator counter-force seat installation ground rail e, facade is shaped on threaded hole and fixedlys connected with vertical actuator j with vertical actuator counter-force bar 13, and the installation site is adjustable, the installation site by adjusting vertical actuator reaction support 14 and vertically the stroke of actuator counter-force bar 13 in the vertical pre-pipe laying 10 of actuator change mounting distance between the exciting crossbeam h.
Described half car quality analog loading device C is made up of two and half car quality analog loading device horizontal buffer formula connecting rod ASSY o, the vertical fixed connecting rod p of four and half car quality analog loading devices, mass bracket assembly q and mass assembly r, described mass bracket assembly q is welded by steel plate and shaped steel, and its side links to each other by the horizontal buffer formula connecting rod fixed supporting seat f among two and half car quality analog loading device horizontal buffer formula connecting rod ASSY o and testing table location and the auxiliary support apparatus A; Its end face links to each other by the testing table supplemental support assembly b among the vertical fixed connecting rod p of four and half car quality analog loading devices and testing table location and the auxiliary support apparatus A; Its bottom surface is fixed on the bolster or air spring of tested bogie II, mass assembly r is placed on the mass bracket base 15 of mass bracket assembly q, by mass standing screw 20 among the mass bracket assembly q and nut location and fixing, when half car quality analog loading device C does vertical along with tested bogie or during transverse movement, half car quality simulation loading dress horizontal buffer formula connecting rod ASSY o and the vertical fixed connecting rod p of half car quality analog loading device play effect spacing and constraint to mass bracket assembly q, and the balance that guarantees half car quality analog loading device C in process of the test is with stable.
Described half car quality analog loading device horizontal buffer formula connecting rod ASSY o two ends connect on the mass carriage main beam 16 that clamping plate n is connected in mass bracket assembly q and on the horizontal buffer formula connecting rod fixed supporting seat f by bolt and horizontal buffer formula connecting rod respectively; The vertical fixed connecting rod p of described half car quality analog loading device two ends are connected on the mass carriage head tree 17 of mass bracket assembly q by bolt and hinged support respectively and the longitudinal rod of testing table supplemental support assembly b connects on the clamping plate 7.
Described mass bracket assembly q comprises a mass bracket base 15, two mass carriage main beams 16, three mass carriage head trees 17, three mass carriage baffle plates 18, six mass standing screw mount pads 19, six roots of sensation mass stationary links 20, six mass standing screw large washers 21 and mass assembly r, mass bracket base 15 is welded by section bar, on three crossbeams of base, be welded with six mass standing screw mount pads 19, be shaped on threaded hole and mass standing screw 20 1 ends on it by being threaded and by nut lock, mass carriage head tree 17 is fixed on three angles of mass bracket base 15, mass carriage main beam 16 is fixed on two mass carriage head trees 17, is fixing two horizontal buffer formula connecting rods connection clamping plate n by bolt and nut on the every mass carriage main beam 16 and is being used to install half car quality simulation loading dress horizontal buffer formula connecting rod ASSY o.
Described mass assembly r is made up of a plurality of masses, each mass 22 is formed by iron casting, be processed with the hole that is used for installation quality piece register pin 23 and mass standing screw 20 around the central axis at mass, two sides of mass are equipped with and are convenient to the hanger dismantling and carry.
Technique effect of the present invention: this bogie hangs the self-vibration characteristic testing table and adopts sinusoidal automatic frequency sweep signal exciting and random signal exciting, and detects needs according to the vibration shape and arrange vertical on car body and bogie frame and the transversal displacement sensor.During sine automatic frequency sweep signal exciting, discern the natural frequency of vibration according to the resonance peak of response; During exciting, response and accumulation signal are asked transport function, again the natural frequency of vibration of recognition system at random.The sequencing of test procedure, robotization make the detection of the self-vibration characteristic under the different vibration shapes of bogie frame accurate more, efficient.
This bogie suspension self-vibration characteristic testing table has solved because factors such as manufacturing process make bogie not reach the problem that design performance requires after manufacturing.Once just reach requirement by the dynamic performance of the adjusted bogie of parameter testing in the Full Vehicle Dynamics process of the test, shortened the product development construction cycle greatly, a large amount of test periods and funds have been saved, this Research and development of test-bed success, to play an important role in the upgrade and replacement process of quickening China railways lorry product, application prospect is very wide.Have certain social benefit and economic benefit, help the development of society.
Description of drawings
Fig. 1 is based on the rail vehicle independent steering frame self-vibration characteristic testing table whole structure figure one under the half car emulation mode.
Fig. 2 is based on the rail vehicle independent steering frame self-vibration characteristic testing table whole structure figure two under the half car emulation mode.
Fig. 3 is based on the rail vehicle independent steering frame self-vibration characteristic testing table vertical view under the half car emulation mode.
Fig. 4 is based on the rail vehicle independent steering frame self-vibration characteristic testing table main body figure under the half car emulation mode.
Fig. 5 is based on the whole front elevation of the rail vehicle independent steering frame self-vibration characteristic testing table under the half car emulation mode.
Fig. 6 testing table location and auxiliary support apparatus synoptic diagram.
Fig. 7 testing table column assembly synoptic diagram.
Fig. 8 testing table supplemental support assembly synoptic diagram,
Wherein: (a) testing table supplemental support assembly axonometric drawing;
(b) testing table supplemental support assembly front elevation.
Fig. 9 testing table exciting charger and half car quality analog loading device synoptic diagram.
Figure 10 testing table exciting charger synoptic diagram.
The vertical actuator counter-force of Figure 11 seat assembly synoptic diagram,
Wherein: (a) vertical actuator counter-force seat assembly axonometric drawing;
(b) vertical actuator counter-force seat assembly cut-open view;
(c) vertical actuator counter-force seat assembly partial enlarged drawing.
Figure 12 half car quality analog loading device synoptic diagram.
Figure 13 half car quality analog loading device process of the test movement tendency is analyzed,
Wherein: (a) right view; (b) front view; (c) axonometric drawing; (d) vertical view.
Figure 14 mass bracket assembly synoptic diagram.
Figure 15 mass assembly synoptic diagram,
Wherein: (a) mass assembly axonometric drawing;
(b) mass assembly cut-open view.
Among the figure: I-is based on the bogie self-vibration characteristic testing table under the half car quality emulation mode; The tested bogie of II-; III-testing table concrete foundation;
A-testing table location and auxiliary support apparatus; B-testing table exciting charger; C-half car quality analog loading device;
A-testing table location column assembly; B-testing table supplemental support assembly; The vertical actuator of c-is installed cast iron platform; The horizontal actuator of d-is installed cast iron platform; The vertical actuator counter-force of e-seat is installed the ground rail; F-horizontal buffer formula connecting rod fixed supporting seat; The vertical actuator counter-force of g-seat assembly; H-testing table exciting crossbeam; The vertical actuator of i-; The vertical actuator of j-; The horizontal actuator of k-; The movable rail U of the l-type wheel jig of keeping off a car; The m-actuator is adjusted platform; N-horizontal buffer formula connecting rod connects clamping plate; O-half car quality analog loading device horizontal buffer formula connecting rod ASSY; The vertical fixed connecting rod of p-half car quality analog loading device; Q-mass bracket assembly; R-mass assembly;
1-testing table head tree; 2-testing table heel post; 3-testing table oblique volumn supporting; 4-testing table column connecting column; 5-supplemental support crossbeam; 6-supplemental support crossbeam fixed supporting seat; The 7-longitudinal rod connects clamping plate; 8-testing table column connects clamping plate with the supplemental support crossbeam; 9-supplemental support crossbeam connects clamping plate with fixed supporting seat; The vertical actuator reaction support of 14-; The vertical actuator counter-force of 13-bar; 12-tensioner cover; 11-tensioner cover set collar; The pre-pipe laying of the vertical actuator counter-force of 10-seat; 15-mass bracket base; 16-mass carriage main beam; 17-mass carriage head tree; 18-mass carriage baffle plate; 19-mass standing screw mount pad; 20-mass standing screw; 21-mass standing screw large washer; 22-1 ton mass; 23-mass register pin.
Embodiment
Above-mentioned purpose of the present invention is achieved through the following technical solutions, and accompanying drawings is as follows.
Consult Fig. 1,2,3,4,5, a kind of based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, this testing table comprises testing table location and auxiliary support apparatus A, testing table exciting charger B and half car quality analog loading device C.Testing table location and auxiliary support apparatus A and testing table concrete foundation III are connected, and install and fix the position and for each provides the counter-force supporting role to actuator for testing table location, loading and servicing unit provide; Member on testing table exciting charger B and testing table location and the auxiliary support apparatus A is connected, and the tested bogie II of fixed constraint also hangs the self-vibration characteristic test vibration shape according to bogie and detects tested bogie II wheel carrying out the exciting of a definite form; The bolster of half car quality analog loading device C and tested bogie II or air spring connects and be connected by the member on connecting rod and testing table location and the auxiliary support apparatus A carries out vertical loading to simulate half car quality to tested bogie II.
Consult Fig. 4,5,6,7,8, wherein testing table location and auxiliary support apparatus A comprise that two cover testing tables location column assembly a, test battery platform supplemental support assembly b, two vertical actuator install that cast iron platform c, horizontal actuator install cast iron platform d, eight vertical actuator counter-force seats are installed ground rail e and a horizontal buffer formula connecting rod fixed supporting seat f.Two cover testing table location column assembly a are symmetrically arranged in testing table longitudinal centre line both sides, each column and cross-brace bottom is by being bolted on the pre-embedded steel slab that is cast among the testing table concrete foundation III, and it is used for fixing and supports testing table supplemental support assembly b and expand for the follow-up function of testing table provides the space.Gate beam fixed supporting seat 6 among the test battery platform supplemental support assembly b is bolted on the ground rail that is cast among the testing table concrete foundation III by the T type, supplemental support crossbeam 5 two ends connect clamping plate 8 by the testing table column fixedlys connected with the testing table head tree 1 among the column assembly a of testing table location with nut by screw rod with the supplemental support crossbeam, and testing table supplemental support assembly b is used for fixing the vertical fixed connecting rod p of half car quality analog loading device that supports half car quality analog loading device C.It is online by being bolted to the earth anchor device that is cast in the testing table concrete foundation III that two vertical actuator are installed cast iron platform c, is shaped on T type groove on it and is used for installing and fixing vertical actuator i and provides counter-force for vertical actuator i.A horizontal actuator is installed cast iron platform d by being bolted on the pre-embedded steel slab that is cast in the testing table concrete foundation III, is shaped on T type groove on it and is used for installing and fixing horizontal actuator j and provides counter-force for horizontal actuator j.Article eight, it is a unit that vertical actuator counter-force seat is installed per two of ground rail e, is embedded in four angles of testing table concrete foundation III in advance, and each unit is used for installing and fixing vertical actuator counter-force seat assembly g.A horizontal buffer formula connecting rod fixed supporting seat f is shaped on T type groove and is used for installing and fixing half car quality analog loading device horizontal buffer formula connecting rod ASSY o by being bolted on the pre-embedded steel slab that is embedded in advance among the testing table concrete foundation III on it.
Consult Fig. 7, wherein column assembly a in testing table location comprises two testing table head trees 1, testing table heel post 2, four testing table oblique volumn supportings 3 and testing table column connecting columns 4.Two testing table head trees 1 and testing table heel post 2 bottoms are by being bolted on the pre-embedded steel slab of building in testing table concrete foundation III, and top is separately fixed on three faces of testing table column connecting column 4 by bolt.Testing table oblique volumn supporting 3 one ends are fixed on the pre-embedded steel slab of building in testing table concrete foundation III by bolt and hinged support, the other end is fixed on the testing table head tree 1 by bolt and hinged support, and testing table oblique volumn supporting 3 is used for improving rigidity and the natural frequency of testing table location column assembly a.Testing table location column assembly a installs and fixes the basis as testing table supplemental support assembly b, and provides the space for the follow-up function expansion of testing table.
Consult Fig. 8, wherein testing table supplemental support assembly b comprises that two supplemental support crossbeams 5, supplemental support crossbeam fixed supporting seat 6, eight vertical fixed connecting rods connect clamping plate 7, eight testing table columns connect clamping plate 8 with the supplemental support crossbeam and a supplemental support crossbeam connects clamping plate 9 with fixed mounting base.Supplemental support crossbeam fixed supporting seat 6 is bolted on the ground rail that is cast among the testing table concrete foundation III by the T type, is shaped on T type groove on it, is used for support fixation supplemental support crossbeam 5.Two supplemental support crossbeams 5 are welded by steel plate.Two testing table columns connect clamping plate 8 to be made supplemental support crossbeam 5 one ends and 1 clamping of testing table head tree between the two by the friction pair constraint by screw rod and nut with the supplemental support crossbeam.In order to improve the rigidity of supplemental support crossbeam 5, adjust the installation site of supplemental support crossbeam fixed supporting seat 6 on testing table concrete foundation III ground rail, and utilize the supplemental support crossbeam to connect clamping plate 9, screw rod and nut with fixed supporting seat supplemental support crossbeam 5 and fixed supporting seat 6 are fixed together.It is a unit that per two vertical fixed connecting rods connect clamping plate 7, is fixed on the supplemental support crossbeam 5 by screw rod and nut, is shaped on threaded hole on it and is used to install and fix the vertical fixed connecting rod p of half car quality analog loading device.
Consult Fig. 4,5,9,10, wherein testing table exciting charger B is made up of the testing table exciting loading unit that two covers are symmetrically arranged in the testing table cross central line, and every cover exciting loading unit comprises two vertical actuator counter-force seat assembly g, testing table exciting crossbeam h, four vertical actuator i, two vertical actuator j, horizontal actuator k, two movable rail U types keep off a car wheel anchor clamps l and some actuator adjustment platform m.Exciting crossbeam h is connected with testing table concrete foundation III with a horizontal actuator k by four vertical actuator i, two vertical actuator j, Plane Installation has the movable rail U type wheel jig l that keeps off a car on the crossbeam, and exciting crossbeam h hangs self-vibration characteristic according to bogie and tests requirement that the different vibration shapes detect that each exciting force to actuator is passed to tested bogie II wheel is right under the control of electrohydraulic servo system.Four vertical actuator i one ends are fixedlyed connected by T type bolt and hinged support and vertical actuator installation cast iron platform c or actuator adjustment platform m, the other end is fixedlyed connected with exciting crossbeam h bottom surface with hinged support by bolt, and vertical actuator i provides vertical support and vertical exciting acting force is provided at the trial for exciting crossbeam h.Two vertical actuator j one ends are fixedlyed connected with vertical actuator counter-force seat assembly g with hinged support by bolt, the other end is fixedlyed connected with exciting crossbeam h side with hinged support by bolt, provide vertical supplemental support to guarantee exciting crossbeam h stress balance when vertically actuator j provides longitudinal bracing and carries out vertical or horizontal exciting at the trial for the exciting crossbeam, provide vertical exciting acting force for the follow-up function expansion of testing table simultaneously.Horizontal actuator k one end is fixedlyed connected by T type bolt and hinged support and horizontal actuator installation cast iron platform d or actuator adjustment platform m, the other end is fixedlyed connected with exciting crossbeam h end face with hinged support by bolt, and laterally actuator k provides cross-brace and horizontal exciting acting force is provided at the trial for exciting crossbeam h.Thereby by adjust respectively vertical actuator i and laterally actuator k vertical actuator install cast iron platform c and laterally actuator install on the cast iron platform d the installation site and vertically the installation site of the actuator counter-force seat assembly g distance that changes two testing table exciting crossbeam h satisfy the requirement of disalignment apart from bogie test.Two movable rail U types are kept off a car wheel jig l by being bolted to upward plane of exciting crossbeam h, wheel left exciting crossbeam h when it was used for clamping wheel with the tested bogie II of locking and prevents to test, and satisfied the requirement of different gauge bogie tests by adjusting the keep off a car installation site on wheel jig l plane on exciting crossbeam h of movable rail U type.Actuator is adjusted platform m and is adopted casting technique to make, be shaped on T type groove on it, being bolted to vertical actuator by the T type during use installs on cast iron platform c and the horizontal actuator installation cast iron platform d, thereby vertical actuator i and horizontal actuator k one end are fixed on the distance that actuator adjustment platform m goes up shortening actuator two ends hinged support by T type bolt and hinged support, improve testing table integral body natural frequency.
Consult Figure 11, wherein vertically actuator counter-force seat assembly g comprises the vertical actuator counter-force bar of a vertical actuator reaction support 14, one 13,12, tensioners cover set collars 11 of tensioner cover and the pre-pipe laying 10 of vertical actuator counter-force seat.Vertically the pre-pipe laying 10 of actuator counter-force seat is embedded among the testing table concrete foundation III in advance, and it is used for installing and fixing tensioner cover set collar 11 and vertical actuator counter-force bar 13 flexible spaces that provide are provided.Tensioner cover set collar 11 is bolted to connection on vertical pre-pipe laying 10 of actuator counter-force seat.Tensioner is overlapped 12 outer walls and is cooperated by friction pair with tensioner cover set collar 11 inwalls.Vertical actuator counter-force bar 13 outer walls overlap 12 inwalls with tensioner and cooperate by friction pair, and it can vertically stretch in the pre-pipe laying 10 of actuator counter-force seat, and counter-force bar one end is shaped on ring flange and fixedlys connected with vertical actuator reaction support 14 by bolt.Vertically actuator reaction support 14 underrun T types are bolted to vertical actuator counter-force seat ground rail e are installed, and facade is shaped on threaded hole and is used to install and fix vertical actuator counter-force bar 13 and vertical actuator j.Installation site by adjusting vertical actuator reaction support 14 and vertically the stroke of actuator counter-force bar 13 in the vertical pre-pipe laying 10 of actuator change mounting distance between the exciting crossbeam h to satisfy the requirement of different gauge bogie tests, tighten after reaction support 14 and counter-force bar 13 positions are determined that tensioner cooperates by friction pair between the inwalls that encircle in the inwall of outer wall that bolt in the tensioner cover 12 makes that tensioner overlaps 12 outer shrouds and tensioner cover set collar 11 and the tensioner cover 12 and counter-force bar 13 outer walls.
Consult Fig. 4,5,12,13, wherein half car quality analog loading device C is by two and half car quality analog loading device horizontal buffer formula connecting rod ASSY o, the vertical fixed connecting rod p of four and half car quality analog loading devices, mass bracket assembly q and mass assembly r.Mass bracket assembly q is welded by steel plate and shaped steel, and its side links to each other by the horizontal buffer formula connecting rod fixed supporting seat f among two and half car quality analog loading device horizontal buffer formula connecting rod ASSY o and testing table location and the auxiliary support apparatus A; Its end face links to each other by the testing table supplemental support assembly b among the vertical fixed connecting rod p of four and half car quality analog loading devices and testing table location and the auxiliary support apparatus A; Its bottom surface is fixed on the bolster or air spring of tested bogie II.Half car quality analog loading device horizontal buffer formula connecting rod ASSY o, one end connects clamping plate n by bolt and two horizontal buffer formula connecting rods and is connected on the mass carriage main beam 16 of mass bracket assembly q, and the other end connects clamping plate n by T type bolt and a horizontal buffer formula connecting rod and is connected on the horizontal buffer formula connecting rod fixed supporting seat f.Vertical fixed connecting rod p one end of half car quality analog loading device is connected in by bolt and hinged support on the mass carriage head tree 17 of mass bracket assembly q, and the other end connects on the clamping plate 7 by the longitudinal rod that screw thread and hinged support are connected in testing table supplemental support assembly b.Mass assembly r is placed on the mass bracket base 15 of mass bracket assembly q, by mass standing screw 20 among the mass bracket assembly q and nut location and fixing.When half car quality analog loading device C does vertical along with tested bogie or during transverse movement, half car quality analog loading device horizontal buffer formula connecting rod o and the vertical fixed connecting rod p of half car quality analog loading device play effect spacing and constraint to mass carriage q, and the balance that guarantees half car quality analog loading device C in process of the test is with stable.Movement tendency is analyzed: when test is carried out vertical during along z axle exciting, half car quality analog loading device C does along the catenary motion of z axle, the vertical fixed connecting rod p of half car quality analog loading device this moment swings at vertical plane YZ, its movable end hinged support bearing pin edge is the circular motion in the center of circle with the hinged support bearing pin that is fixed on the basis end, move except along the z axle moves, also existing when then mass bracket assembly q is along catenary motion along the component of y axle, but because long about 1 meter and about the less 10mm of the displacement of vertical exciting of the vertical fixed connecting rod p of half car quality analog loading device, then the component along the y axle of the Chan Shenging displacement of moving is littler, and can be similar to what think that mass bracket assembly q does is catenary motion along the z axle; In like manner, also there is the movement tendency of the vertical fixed connecting rod p of above-mentioned half car quality analog loading device in half car quality analog loading device horizontal buffer formula connecting rod o, but because half car quality analog loading device horizontal buffer formula connecting rod o is shorter, if the displacement of moving along the component of x axle when adopting the fixed length structure then mass bracket assembly q does catenary motion is relatively large, this just requires half car quality analog loading device horizontal buffer formula connecting rod o can freely stretch within the specific limits and compensates the displacement of moving along x axle component, for the position that prevents to reach capacity is that free extensible member produces and impacts, its inside is provided with snubber assembly simultaneously.When test is carried out laterally along x axle exciting, half car quality analog loading device C does along the transverse movement of x axle, the vertical fixed connecting rod p of half car quality analog loading device this moment swings at surface level XY, its movable end hinged support oscillating bearing edge is the circular motion in the center of circle with the hinged support oscillating bearing that is fixed on the basis end, move except along the x axle moves, also existing when then mass bracket assembly q is along transverse movement along the component of y axle, but because long about 1 meter and laterally about the less 10mm of displacement of exciting of the vertical fixed connecting rod p of half car quality analog loading device, then the component along the y axle of the Chan Shenging displacement of moving is littler, and can be similar to what think that mass bracket assembly q does is transverse movement along the x axle; Because the quality of half car quality analog loading device C is bigger, cause its inertia bigger, in process of the test for prevent half car quality analog loading device C laterally along the x axle occur exceeding normal displacement and the accident that causes mass bracket assembly q to topple take place must laterally limiting along the removable displacement of x axle mass bracket assembly q, utilize horizontal buffer formula connecting rod o can realize above-mentioned requirements, it is retractable in the certain displacement scope, when reaching the extreme position of free telescopic displacement, built-in impact damper can play position-limiting action, and buffer action is played in the impact that free extensible member is produced simultaneously.Described half car quality analog loading device horizontal buffer formula connecting rod ASSY o and the vertical fixed connecting rod p of half car quality analog loading device mainly are made up of mandrel 7 and connecting rod support 1, the band impact damper formula connecting rod that its axial retractable and locking are fixing, this connecting rod can freely stretch on certain axial range, and the certain movement surplus is arranged on other direction; Impact damper can play buffer action to connecting rod and moving component when axially-movable surpasses the connecting rod extreme position; Utilize the mandrel latch mechanism on the connecting rod to carry out the function that locking is realized conventional linkage to axial stretching.
Consult Figure 14, wherein mass bracket assembly q comprises a mass bracket base 15, two mass carriage main beams 16, three mass carriage head trees 17, three mass carriage baffle plates 18, six mass standing screw mount pads 19, six roots of sensation mass stationary links 20, six mass standing screw large washers 21 and some mass assembly r.Mass bracket base 15 is welded by section bar, is welded with six mass standing screw mount pads 19 on three crossbeams of base, is shaped on threaded hole and mass standing screw 20 1 ends on it by being threaded and by nut lock.Mass carriage head tree 17 is welded on three angles of mass bracket base 15, mass carriage main beam 16 is welded on two mass carriage head trees 17, is fixing two horizontal buffer formula connecting rods connection clamping plate n by bolt and nut on the every mass carriage main beam 16 and is being used to install half car quality analog loading device horizontal buffer formula connecting rod ASSY o.
Consult Figure 15, wherein mass assembly r comprises 1 ton of mass 22 and mass register pin 23.1 ton of mass 22 is formed by iron casting, is processed with 4 holes at mass around central axis, wherein 2 holes be used for installation quality piece register pin 23 when guaranteeing to put mass the upper strata mass align with the lower floor mass; Mass standing screw 20 can pass other 2 holes, and mass is played effect fixing and constraint.Two sides at 1 ton of mass 22 are welded with dismounting and the carrying that hanger is convenient to mass.
Claims (10)
1. one kind is hung the self-vibration characteristic testing table based on the bogie under the half car quality emulation mode, mainly by testing table location and auxiliary support apparatus (A), testing table exciting charger (B) and half car quality analog loading device (C) are formed, it is characterized in that, described testing table location and auxiliary support apparatus (A) are connected on the testing table concrete foundation (III), be the testing table location, load and servicing unit provides and installs and fixes the position and for each provides the counter-force supporting role to actuator, it comprises two cover testing table location column assemblies (a), test battery platform supplemental support assembly (b), two vertical actuator are installed cast iron platform (c), a horizontal actuator is installed cast iron platform (d), article eight, vertical actuator counter-force seat is installed a ground rail (e) and a horizontal buffer formula connecting rod fixed supporting seat (f), two cover testing table location column assemblies (a) are symmetrically arranged in testing table longitudinal centre line both sides, and column wherein and cross-brace bottom are by being bolted on the testing table concrete foundation (III); Testing table supplemental support assembly (b) comprises gate beam fixed supporting seat (6) and supplemental support crossbeam (5), gate beam fixed supporting seat (6) is bolted on the ground rail in the testing table concrete foundation (III) by the T type, and supplemental support crossbeam (5) two ends connect clamping plate (8) by the testing table column and fixedly connected by the testing table head tree (1) in screw rod and nut and the testing table location column assembly (a) with the supplemental support crossbeam; Vertical actuator installation cast iron platform (c) and horizontal actuator are installed cast iron platform (d) all by being bolted on the testing table concrete foundation (III), all are shaped on T type groove on it respectively with installing and fixing vertical actuator (i) and horizontal actuator (j) and being that vertical actuator (i) and horizontal actuator (j) provide counter-force; Per two is a unit in vertical actuator counter-force seat installation ground rail (e), is embedded in four angles of testing table concrete foundation (III) in advance, and each unit is used for installing and fixing vertical actuator counter-force seat assembly (g); Horizontal buffer formula connecting rod fixed supporting seat (f) is shaped on T type groove and is used for installing and fixing half car quality analog loading device horizontal buffer formula connecting rod ASSY (o) by being bolted on the pre-embedded steel slab that is embedded in advance in the testing table concrete foundation (III) on it.
2. according to claim 1 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that: described testing table location column assembly (a) comprises two testing table head trees (1), a testing table heel post (2), four testing table oblique volumn supportings (3) and a testing table column connecting column (4), two testing table head trees (1) and a testing table heel post (2) bottom are by being bolted on the pre-embedded steel slab of building in testing table concrete foundation (III), top is separately fixed on three faces of testing table column connecting column (4) by bolt, testing table oblique volumn supporting (3) one ends are fixed on the pre-embedded steel slab of building in testing table concrete foundation (III) by bolt and hinged support, the other end is fixed on the testing table head tree (1) by bolt and hinged support, testing table oblique volumn supporting (3) is used for improving the rigidity and the natural frequency of testing table location column assembly (a), testing table location column assembly (a) installs and fixes the basis as testing table supplemental support assembly (b), and provides the space for the follow-up function expansion of testing table.
3. according to claim 1 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, described testing table supplemental support assembly (b) comprises two supplemental support crossbeams (5), a supplemental support crossbeam fixed supporting seat (6), eight vertical fixed connecting rods connect clamping plate (7), eight testing table columns connect clamping plate (8) with the supplemental support crossbeam and a supplemental support crossbeam connects clamping plate (9) with fixed mounting base, supplemental support crossbeam fixed supporting seat (6) bottom is bolted on the ground rail that is cast in the testing table concrete foundation (III) by the T type, be shaped on the supplemental support crossbeam fixed supporting seat (6) and be used for the T type groove of support fixation supplemental support crossbeam (5), and by fixed supporting seat connection clamping plate (9), screw rod and nut and fixedly supplemental support crossbeam (5) add and fasten, two supplemental support crossbeams (5) connect clamping plate (8) by the testing table column with the supplemental support crossbeam, screw rod and nut and testing table head tree (1) are fixedly clamped, the installation site on the rail is adjustable (III) in the testing table concrete foundation for supplemental support crossbeam fixed supporting seat (6), it is a unit that per two vertical fixed connecting rods connect clamping plate (7), be fixed on the supplemental support crossbeam (5) by screw rod and nut, be shaped on the threaded hole that is used to install and fix the half vertical fixed connecting rod of car quality analog loading device (p) on it.
4. according to claim 1 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, member on described testing table exciting charger (B) and testing table location and the auxiliary support apparatus (A) is connected, be used for fixing constraint tested bogie (II) and hang the self-vibration characteristic test vibration shape according to bogie and detect tested bogie (II) wheel carrying out the exciting of a definite form, it is made up of the testing table exciting loading unit that two covers are symmetrically arranged in the testing table cross central line, every cover exciting loading unit comprises two vertical actuator counter-force seat assemblies (g), a testing table exciting crossbeam (h), four vertical actuator (i), two vertical actuator (j), a horizontal actuator (k), two movable rail U types are kept off a car and are taken turns anchor clamps (l) and some actuator adjustment platform (m), exciting crossbeam (h) is by four vertical actuator (i), two vertical actuator (j) are connected with testing table concrete foundation (III) with a horizontal actuator (k), exciting crossbeam (h) is gone up Plane Installation the movable rail U type wheel jig (1) of keeping off a car, and exciting crossbeam (h) hangs self-vibration characteristic according to bogie and tests requirement that the different vibration shapes detect that each exciting force to actuator is passed to tested bogie (II) wheel is right under the control of electrohydraulic servo system.
5. according to claim 4 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, described four vertical actuator (i) end by T type bolt and hinged support and vertical actuator cast iron platform (c) is installed or actuator adjustment platform (m) is fixedlyed connected, the other end is fixedlyed connected with exciting crossbeam (h) bottom surface with hinged support by bolt, and vertical actuator (i) provides vertical support and vertical exciting acting force is provided at the trial for exciting crossbeam (h);
Described vertical actuator (j) end is fixedlyed connected with vertical actuator counter-force seat assembly (g) with hinged support by bolt, the other end is fixedlyed connected with exciting crossbeam (h) side with hinged support by bolt, provide vertical supplemental support to guarantee exciting crossbeam (h) stress balance when vertically actuator (j) provides longitudinal bracing and carries out vertical or horizontal exciting at the trial for the exciting crossbeam, provide vertical exciting acting force for the follow-up function expansion of testing table simultaneously;
Described horizontal actuator (k) end is fixedlyed connected by T type bolt and hinged support and horizontal actuator installation cast iron platform (d) or actuator adjustment platform (m), the other end is fixedlyed connected with exciting crossbeam (h) end face with hinged support by bolt, and laterally actuator (k) provides cross-brace and horizontal exciting acting force is provided at the trial for exciting crossbeam (h);
Described movable rail U type is kept off a car wheel jig (l) by being bolted to upward plane of exciting crossbeam (h), its be used for clamping and wheel of the tested bogie of locking (II) when preventing to test wheel leave exciting crossbeam (h), satisfy the requirement of different gauge bogie tests by adjusting the keep off a car installation site on wheel jig (l) plane on exciting crossbeam (h) of movable rail U type;
Described actuator is adjusted platform (m) and is adopted casting technique to make, be shaped on T type groove on it, being bolted to vertical actuator by the T type during use installs on cast iron platform (c) and the horizontal actuator installation cast iron platform (d), with vertical actuator (i) and laterally actuator (k) end by T type bolt and hinged support be fixed on actuator adjust platform (m) thus go up the distance that shortens actuator two ends hinged support, improve the whole natural frequency of testing table.
6. describedly hang the self-vibration characteristic testing table according to claim 1 or 4 based on the bogie under the half car quality emulation mode, it is characterized in that, described vertical actuator counter-force seat assembly (g) comprises a vertical actuator reaction support (14), a vertical actuator counter-force bar (13), a tensioner cover (12), a tensioner is overlapped a set collar (11) and a vertical pre-pipe laying of actuator counter-force seat (10), vertically the pre-pipe laying of actuator counter-force seat (10) is embedded in the testing table concrete foundation (III) in advance, be used for installing and fixing tensioner cover set collar (11) and provide the space for vertical actuator counter-force bar (13) stretches, tensioner cover set collar (11) is bolted to connection on vertical pre-pipe laying of actuator counter-force seat (10), tensioner cover (12) outer wall and tensioner cover set collar (11) inwall frictional fit, vertical actuator counter-force bar (13) outer wall and tensioner cover (12) inwall frictional fit, and can vertically stretch in the pre-pipe laying of actuator counter-force seat (10), between the inwall of the outer wall of tensioner cover (12) outer shroud and tensioner cover set collar (11), and be tightened by the bolt in the tensioner cover (12) between inwall that encircles in the tensioner cover (12) and counter-force bar (13) outer wall, vertically actuator reaction support (14) underrun T type is bolted on vertical actuator counter-force seat installation ground rail (e), facade is shaped on threaded hole and fixedlys connected with vertical actuator (j) with vertical actuator counter-force bar (13), and the installation site is adjustable, the installation site by adjusting vertical actuator reaction support (14) and vertically the stroke of actuator counter-force bar (13) in the vertical pre-pipe laying of actuator (10) change mounting distance between the exciting crossbeam (h).
7. according to claim 1 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, the bolster of described half car quality analog loading device (C) and tested bogie (II) or air spring connects and be connected by the member on connecting rod and testing table location and the auxiliary support apparatus (A), tested bogie (II) is carried out vertical loading to simulate half car quality, it is by two and half car quality analog loading device horizontal buffer formula connecting rod ASSYs (o), four and the half vertical fixed connecting rods of car quality analog loading device (p), a mass bracket assembly (q) and mass assembly (r) are formed, described mass bracket assembly (q) is welded by steel plate and shaped steel, its side locate by two and half car quality analog loading device horizontal buffer formula connecting rod ASSYs (o) and testing table and auxiliary support apparatus (A) in horizontal buffer formula connecting rod fixed supporting seat (f) link to each other; Its end face locate by the four and half vertical fixed connecting rods of car quality analog loading device (p) and testing table and auxiliary support apparatus (A) in testing table supplemental support assembly (b) link to each other; Its bottom surface is fixed on the bolster or air spring of tested bogie (II), mass assembly (r) is placed on the mass bracket base (15) of mass bracket assembly (q), by mass standing screw (20) in the mass bracket assembly (q) and nut location and fixing, when half car quality analog loading device (C) is done vertical along with tested bogie or during transverse movement, half car quality simulation loading dress horizontal buffer formula connecting rod ASSY (o) and the half vertical fixed connecting rod of car quality analog loading device (p) play effect spacing and constraint to mass bracket assembly (q), and the balance that guarantees half car quality analog loading device (C) in process of the test is with stable.
8. according to claim 7 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, described half car quality analog loading device horizontal buffer formula connecting rod ASSY (o) two ends connect by bolt and horizontal buffer formula connecting rod that mass carriage main beam (16) that clamping plate (n) are connected in mass bracket assembly (q) is gone up respectively and horizontal buffer formula connecting rod fixed supporting seat (f) on; The mass carriage head tree (17) that the described half vertical fixed connecting rod of car quality analog loading device (p) two ends are connected in mass bracket assembly (q) by bolt and hinged support respectively go up and the longitudinal rod connection clamping plate (7) of testing table supplemental support assembly (b) on.
9. describedly hang the self-vibration characteristic testing table according to claim 7 or 8 based on the bogie under the half car quality emulation mode, it is characterized in that: described mass bracket assembly (q) comprises a mass bracket base (15), two mass carriage main beams (16), three mass carriage head trees (17), three mass carriage baffle plates (18), six mass standing screw mount pads (19), six roots of sensation mass stationary links (20), six mass standing screw large washers (21) and mass assembly (r), mass bracket base (15) is welded by section bar, on three crossbeams of base, be welded with six mass standing screw mount pads (19), be shaped on threaded hole and mass standing screw (20) one ends on it by being threaded and by nut lock, mass carriage head tree (17) is fixed on three angles of mass bracket base (15), mass carriage main beam (16) is fixed on two mass carriage head trees (17), and every mass carriage main beam (16) is upward being fixed two horizontal buffer formula connecting rods connection clamping plate (n) by bolt and nut and is being used to install half car quality simulation loading dress horizontal buffer formula connecting rod ASSY (o).
10. according to claim 7 based on the suspension of the bogie under half car quality emulation mode self-vibration characteristic testing table, it is characterized in that, described mass assembly (r) is made up of a plurality of masses, each mass (22) is formed by iron casting, be processed with the hole that is used for installation quality piece register pin (23) and mass standing screw (20) around the central axis at mass, two sides of mass are equipped with and are convenient to the hanger dismantling and carry.
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