CN104568478B - Dynamic loading device of railway locomotive drive component - Google Patents

Dynamic loading device of railway locomotive drive component Download PDF

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Publication number
CN104568478B
CN104568478B CN201510007999.7A CN201510007999A CN104568478B CN 104568478 B CN104568478 B CN 104568478B CN 201510007999 A CN201510007999 A CN 201510007999A CN 104568478 B CN104568478 B CN 104568478B
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China
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framework
vertical
push
oil cylinder
frame
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CN201510007999.7A
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Chinese (zh)
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CN104568478A (en
Inventor
林新海
周文祥
靳国忠
马玉强
王晓博
张进
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南车戚墅堰机车车辆工艺研究所有限公司
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Priority to CN201510007999.7A priority Critical patent/CN104568478B/en
Publication of CN104568478A publication Critical patent/CN104568478A/en
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Abstract

The invention discloses a dynamic loading device of a railway locomotive drive component and belongs to the field of locomotive engineering tests. The two ends of vertical oil cylinders, the two ends of transverse oil cylinders, the two ends of longitudinal electric locating push-and-pull rods and the two ends of limiting push-and-pull rods are each provided with a ball hinge. One end of each vertical oil cylinder, one end of each transverse oil cylinder, one end of each longitudinal electric locating push-and-pull rod and one end of each limiting push-and-pull rod are connected with a cage-shaped loading frame, and the other end of each vertical oil cylinder, the other end of each transverse oil cylinder, the other end of each longitudinal electric locating push-and-pull rod and the other end of each limiting push-and-pull rod are connected to a base. The six-freedom-degree movement of the loading frame can be controlled. An upper frame of the loading frame is provided with a special connector and can be rapidly connected with a simulation steering frame with the tested drive component, in this way, dynamic loading can be effectively conducted on the drive component installed in the steering frame, and the vibration working environment and the stress working environment of the drive component are simulated. The dynamic loading device is suitable for different tested drive components through the fixed structure, the problem that oil cylinders are frequently dismounted and mounted is solved, a workload is reduced, the oil cylinders are loaded in a tensioned mode, and meanwhile spring struts are connected in parallel to complete loading of vertical static component force. The dynamic loading device of the railway locomotive drive component is mainly used for load testing of the railway locomotive drive component.

Description

A kind of railway locomotive driver part dynamic loading device
Technical field
The invention belongs to the driver part load test skill of railway locomotive field of engineering technology, more particularly to railway locomotive Art.
Background technology
With the raising and the increasing of power of traction electric machine rotating speed, railway locomotive wheel shaft drive system becomes decision locomotive can By the key link of property, need to set up the dynamic vibration loading mould that special testing stand realizes high-power locomotive wheel shaft drive system Near-ring border, launches experimental study.
At present, the testing stand for providing dynamic load environment can be driven for wheel shaft to include the railway research institute for having built up Wheel rail relation testing stand, can provide simulation with irregularity rail interface.By portal frame and installed in portal frame crossbeam The hydraulic jack of lower section provides the dynamic axle weight loading environment that thrust is formed, the horizontal oil cylinder simulation on gantry pillar From the Lateral Forced of car body.Similar testing stand also has western Shandong Buddhist nun's testing stand of Italy.Similar patent before consulting can To find, existing most of bogie static shaft reloading methods are all using portal frame and vertical oil cylinder, oil cylinder one end peace Portal frame upper beam lower surface is mounted in, the other end is arranged on the upper surface of bogie frame directly or by another crossbeam, Vertical load is applied to framework;Also minority applies static shaft weight using the mode of crossbeam and screw rod.
For the loading of dynamic axle weight disclosed in Chinese invention patent publication number CN201220724006.X, at this stage mainly Realize that this mode is although commonly used, but there is also shortcoming by portal frame and oil cylinder:First, portal frame height is higher, oil The installation and dismounting of cylinder is inconvenient, expends man-hour;Second, the mounting means of oil cylinder determines that it bears when vertical load is applied Be pressure, security and stability is poor;3rd, the frequent dismounting of oil cylinder substantially reduces joint and the life-span of pipeline;4th, gantry The bulky materials of frame are more, and equipment investment is more.
The car body of railway locomotive is placed on two or three bogies.During wheel shaft transfixion on bogie, hold The dead load component brought by car body weight;During orbiting, it is subjected to what is produced because of body oscillating and track irregularity Additional dynamic load component.The wheel shaft distortion that the axle load that car body applies causes can significantly affect the driver parts such as gear, bearing Contact condition, change their working stress, hence it is evident that affect wheel shaft drive system reliability.Because AC traction electric motor is passed The invariable power maximum speed of dynamic relative DC traction motor lifts amplitude can reach more than 50%, therefore using AC Drive The pinion bearing speed of high-power locomotive is accordingly improved.In addition, the wide spectrum torque harmonic wave of traction electric machine is in driving and traveling bullet In property suspension, can cause extra vibration and stress.Although the wheel shaft drive system of high-power locomotive is using electricity Machine --- the case integrated structure of gear, gear engagement and motor are improved with the stress of pinion bearing, but 3000r/min Bearing above and little gear are run always in vibratory impulse environment, are all the time the weak links of whole locomotive.
For the locomotive of highest 120km/h speed, traction electric machine typically adopts axle suspension mode, and wheel shaft drive system can not Band wheel test, but for 200km/h level locomotive drive systems, it is necessary to band wheel test.Different manufacturer, different machines Car, its wheel shaft drive system has its particularity.To this present invention to considering bogie upper lateral, vertical excitation, rail In the vertical excitation in bottom, it is considered under traction electric machine total power drive condition, high-power locomotive wheel shaft drives test behaviour loading to ask Topic is studied, it will thus provide multiple functional, easy to operate, experimental safe the testing stand of loading vibrates loading scheme.
The content of the invention
It is an object of the invention to provide a kind of railway locomotive driver part dynamic loading device, it can efficiently solve simulation Traction electric machine applies upper lateral, vertical excitation to high-power locomotive bogie under total power drive condition, and bottom is vertical to swash The dynamic load problem that wheel shaft drives test such as disturb
The purpose of the present invention is realized by technical scheme below:A kind of railway locomotive driver part dynamic loading device bag Include:
One cage type tetragonal body combination loading frame with six-freedom motion;
Four vertical oil cylinders and four sets vertical spring pull bars of loading frame lower floor framework corner connection;
Two longitudinal electric push-pull bars of loading frame lower floor framework curb girder front end connection, two limits of curb girder rear end connection Position push-pull bar;
A piece horizontal oil cylinder of loading frame upper strata frame left beam middle part connection;
Loading frame is provided with the upper and lower adjustable screw thread lifting locating taper pin with the coordination of simulation bogie top and four sets hang down To fastening screw;
Loading frame is provided with the longitudinal direction and lateral adjustments push-pull bar used with simulation bogie upper interface para-position.
The vertical oil cylinder being coupled located at installing plate and with loading frame and horizontal oil cylinder, (described vertical oil cylinder is dynamic Load cylinder, horizontal oil cylinder is exciting oil cylinder) they are equipped with ball pivot with the two ends of longitudinal electric push-pull bar and spacing push-pull bar. One end ball pivot seat of vertical oil cylinder is consolidated with installing plate, and other end ball pivot seat is connected with lower floor framework, one end ball of horizontal oil cylinder Free bearing is connected with horizontal reaction frame, and other end ball pivot seat is connected with upper strata frame left curb girder;Two longitudinal electric push-pull bars One end ball pivot seat is connected respectively with lower floor's framework all side beam two ends, one end ball pivot seat of two spacing push-pull bars respectively with lower floor's frame The two ends connection of frame rear side beam;The spring spool of vertical spring pull bar is connected with installing plate, and the other end of vertical spring pull bar passes through Spherical bearing is coupled with the crossbeam and wheel spoke type sensor of lower floor framework, and top is fixed by nut;The corner of upper strata framework with The column being bolted, shape between upper strata framework and lower floor's framework and the facade of column are provided between the corner of lower floor's framework Into side elevation rectangle inframe be provided with inverted " v " shape arrangement fixed diagonal brace and " V "-shaped arrangement movable diagonal brace;Upper strata Framework middle girder is provided with symmetrical vertical elongated slot, and screw thread lifting locating taper pin is provided with groove;The rear horizontal stroke of upper strata framework End carriage is provided with the longitudinally adjust push-pull bar with longitudinal handwheel, and upper strata framework is provided with horizontal handwheel near the side of horizontal reaction frame Lateral adjustments push-pull bar, upper strata framework before and after horizontal end carriage be provided with the vertical fastening screw with vertical handwheel.
The longitudinally adjust push-pull bar, lateral adjustments push-pull bar, the free end of vertical fastening screw are equipped with and are loaded The contiguous block that body coordinates.
The front beam of lower floor's framework is provided with the upper track that can be stretched.
The column end face is flanged.
The activity shift block of adjustable track gauge is provided between the screw thread lifting locating taper pin and upper strata framework.
The one end of the movable diagonal brace with ball pivot is coupled with the longeron of upper strata framework, the other end and lower floor's framework pass through spiral shell Bolt is coupled.
The forward and backward end carriage of upper strata framework is the welding structure of two back-to-back channel-section steels and upper and lower panel, the top and bottom Plate is provided with two symmetrical elongated slots for allowing vertical square head bolt to laterally adjust spacing.
Described simulation bogie frame is made up of arranged on left and right sides beam and two end carriages, there is provided driver part is specifying Mounting interface, while providing installation interface for testing stand loading frame, simulation bogie frame is provided with:
1. the auxiliary travelling wheel two that the independence with wheel rim is rotated, with driving wheel to using same guide rail;
2. directly over its curb girder upper surface axle box, the tapered spigot seat of setting φ 60~80, totally two;
3. end carriage trailing flank behind, arranges the pin-and-hole para-position bolt joint seat with T-slot fork, totally two;
4. the vertical bolt head connecting seat of T-slot is set in curb girder both upper ends thereof;
The operation principle of the present invention is as follows:
Test method:Underproof wheel shaft driver part is had an agreement the simulation bogie frame of locating interface installed in band On, it is assembled into the simulation bogie with auxiliary support wheel in workshop;Railway locomotive driver part dynamic loading device is installed On experimental basis platform, main body is the cage type tetragonal body combination type loading frame with six-freedom motion, is equipped with vertical spring Pull bar and vertical oil cylinder, horizontal oil cylinder, longitudinal electric push-pull bar and spacing push-pull bar;Set on the upper strata main beam in frame of loading frame The quick locating interface that two screw thread lifting locating taper pins are matched with simulation bogie is equipped with, before being also provided with " door ", it is allowed to described Simulation bogie is rolled into inside cage type loading frame, by means of longitudinal direction and lateral adjustments push-pull bar, the pin on loading frame Can realize being aligned with hole, simulation bogie frame can be navigated on loading frame, and is applied in the motor control of six degree of freedom, So as to realize the dynamic loading test of wheel shaft drive system.
Due to the oil cylinder that is connected with loading frame the rod member at least 1000mm length such as push-pull bar, and at least two, two ends Passive swing degree of freedom, plays longitudinal push-pull bar band gap of position-limiting action.The scope of loading frame vertical vibration is:± 50mm, is about laterally ± 30mm, and the actuating range of longitudinal electric push-pull bar is ± 15mm.Therefore, except needs four are vertical Oil cylinder is made plane and is coordinated outside control, and laterally and longitudinally motion can free independent control.So, can be real on following three direction Existing multi-motion:
1. it is vertical, simulate height circle spring or rubber metal pad equivalent to secondary suspension device that bogie bears loading frame applying The part car body weight of applying, is allowed to produce equivalent wheel weight, axle to wheel by primary spring compression to transmitting vertical force Weight;Especially by the nut of four vertical spring pull bars of adjustment, the decrement of primary spring is adjusted, adjust static shaft weight, passed through The dynamic retractility amount of the dynamic control vertical oil cylinder in parallel with vertical spring pull bar, such that it is able to control dynamic wheel weight.Synchronous control Four vertical oil cylinders of system, can simulate the sink-float vibration of bogie, and horizontal oil cylinder, can simulate to nod and shake before and after anti-phase control It is dynamic;Laterally oil cylinder can then simulate sidewindering or Wheel Weight Transfer for bogie for anti-phase control left and right.
2. longitudinal direction, by the unilateral or bilateral pull bar of axle box specify take turns to position, cooperation axle system by rail wheel Traction or electric braking power are produced, and the longitudinal force is lifted into locating taper pin by two screw threads and pass to loading frame;It is actual The angle of attack of upper loading frame also controllable ratch pair.
3. laterally, by the unilateral or bilateral pull bar and primary spring of axle box specify wheel to horizontal dynamic position, and Bear loading frame and lift cross force or the displacement that locating taper pin applies by two screw threads;
Loading frame act as:By simulating bogie frame Indirect Loaded, the dynamic wheel that analog drive system is born The angle of attack of the vertical and oscillation crosswise, wheel pair between weight, bogie frame and wheel pair with rail.
The operating process of testing stand:
Dynamic load framework is put in order original position by the 1st step
Testing stand dynamic load framework, 1. above pushes away by four vertical oil cylinders, and by handle insertion support block is swung, then will Oil cylinder is unloaded, and loading frame is fallen in support block, is 2. gone up track extension and is withstood rail wheel, is 3. snapped in lateral adjustments push-pull bar and is added Carry the T-slot bayonet socket of framework;
2nd step pushes and is fixed to loading frame by bogie is simulated
It is artificial to promote simulation bogie to appear on the stage, till wheel is contacted with rail wheel, vertical fastening screw alignment is slipped into vertical To groove, longitudinally adjust push-pull bar alignment is slipped into into vertical groove, two longitudinally adjust push-pull bar traction adjustment lengthwise positions coordinate horizontal To push-pull bar adjustment lateral attitude is adjusted, by the corresponding pin-and-hole of screw thread lifting locating taper pin insertion simulation bogie, then adjust Whole four vertical fastening screws, simulation bogie is adjusted to horizontal level, makes screw thread lifting locating taper pin and pin-and-hole coaxially tight Close fit, and in simulation bogie front and back end insertion cushion block, now aid in travelling wheel hanging, auxiliary of dismantling travelling wheel, by activity Diagonal brace falls closes the door, and tightens bolt, the electronic retraction of upper track;
Loading frame is placed in working position by the 3rd step
With four vertical cylinder jacking loading frames, support block is turned on, adjust the length of lateral adjustments push-pull bar, make left and right Gap is of substantially equal at wheel and the two of rail wheel, and cylinder piston rod is slowly retracted makes wheel contact with rail wheel, now by horizontal stroke Take out to push-pull bar, further compression simulation bogie primary spring, facilitates initial adjustment spring pull-rod nut, and then vertical oil cylinder is unloaded Carry, adjust longitudinal electric push-pull bar, turn to simulation and be placed on directly over rail wheel, tie down screw, loading frame is longitudinally solid It is fixed.The nut above vertical spring pull bar is further turned, makes sensor readings reach setting.
4th step is rotated and is vibrated load test
Electrical power makes testing stand rolling-operation, and every rotation is carried out with vibration load test by test program regulation.Example Such as:1. degree of the disturbing deformation of wheel shaft;2. dynamic takes turns the low frequency part of weight;3. wheel bottom realizes that torque is loaded;4. from rail Vertical dither excitation;5. motor with wheel to lateral displacement;Although laterally centrifugal force is difficult to simulate, wheel pair and motor it Between relatively transverse displacement, architecturally can apply lateral displacement exciting to realize.
5th step simulates bogie and disengages and roll out loading frame with loading frame
After off-test main drive motor is shut down, vertical oil cylinder is drop-down, trip spring pull-rod nut and spacing push-pull bar spiral shell Imperial mother, vertical oil cylinder extends extreme higher position, and rotational support block makes it turn to loading frame lower section;During horizontal oil cylinder is adjusted to Position, adjusts horizontal push-and-pull pole length and its end is snapped in into the T-slot bayonet socket above loading frame, and unloading all oil cylinders makes loading Frame falling is in support block;Flexible upper track stretches out and withstands rail wheel, and simulation bogie installs roller, then vertical screw rod is loose Open, make auxiliary travelling wheel fall on upper track, then screw thread lifting locating taper pin is screwed out and departs from simulation bogie, loading frame Movable diagonal brace rises and opens the door, and the elongation of longitudinally adjust push-pull bar controls to simulate bogie and its wheel backs to be contacted with upper track and is Only, longitudinally adjust push-pull bar is disengaged with bogie, manually bogie is pulled out into cage type loading frame, hung on by driving Automobile is transported.
Above-mentioned five step just completes once complete test, and gets ready to test next time.
Advantage and effect compared with prior art of the invention:
1) the test mould that loading frame is loaded to the wheel shaft driving element component-simulation bogie with fast interface Formula, can be by the interface problem of complicated wheel shaft driving element in factory processes, so that the preparation of testing ground is dropped to It is minimum, shorten the test period, test efficiency is improve, and it is capable of achieving the high-power locomotive wheel axle drive system of 200km/h ranks Dynamic test.
2) charger adapts to different tested driver parts with constant configuration, it is to avoid frequent dismounting oil The problem of cylinder, and oil cylinder loaded using tension mode, while there is spring pull bar parallel connection to complete vertical static component loading, is not only increased The security and stability for having loaded, and because hydraulic jack only applies dynamic component so as to reduce its energy index and corresponding Cost.
3) loading frame two-layer structure up and down with bolts, provides conveniently, and by more to transport, installing Column and diagonal brace are changed, other railcar wheel shaft driver parts can also be tested, expand the subject range of subjects. Huge gantry loading frame is compared, material is saved, equipment investment is reduced.
4) as described above, wheel shaft driver part is loaded into process bogie, transport to after testing ground, to starting test one As only need to the flow process of the operation (the 1st step is served only for testing first) of the 2nd, 3 steps as a result of optimization, effective frock, 2-3 Individual skilled craftsman can complete in half a day, coordinate without the need for driving.After the completion of test, it is only necessary to the work of the 5th step.Only need 2 little When can complete.
As can be seen here dynamic loading device of the invention, multiple functional, easy to operate, experimental safe, save time.
Description of the drawings
Fig. 13 dimensional drawings of the present invention
Fig. 2 left views of the present invention (not with horizontal reaction frame)
Fig. 3 front views of the present invention
Fig. 4 top views of the present invention
Fig. 5 framework A-A sectional drawings in upper strata of the present invention
Fig. 6 lower floor's framework partial enlarged drawings of the present invention
The vertical elongated slot partial enlarged drawing of Fig. 7 upper strata frameworks of the present invention
The vertical spring pull bar top of Fig. 8 present invention connects partial enlarged drawing
Fig. 9 present invention simulation bogie left views
Figure 10 present invention simulation bogie top views
Embodiment
The present invention is described further below by accompanying drawing:
A kind of railway locomotive driver part dynamic loading device, including what is be coupled located at installing plate 10 and with loading frame 1 Vertical oil cylinder 5 and horizontal oil cylinder 6.The two ends of vertical oil cylinder 5 and horizontal oil cylinder 6 and longitudinal electric push-pull bar 2 are equipped with ball pivot, hang down Consolidate with installing plate 10 to one end ball pivot seat of oil cylinder 5, other end ball pivot seat is connected with lower floor framework 15, the one of horizontal oil cylinder 6 End ball pivot seat is connected with horizontal reaction frame 7, and other end ball pivot seat is connected with the left side curb girder 23 of upper strata framework 13;Two longitudinal electrics One end ball pivot seat of push-pull bar 2 is connected respectively with all side beam two ends of lower floor framework 15, one end ball pivot of two spacing push-pull bars 21 Seat is connected respectively with the rear side beam two ends of lower floor framework 15;The spring spool of vertical spring pull bar 4 is connected with installing plate 10, vertical bullet The other end of spring pull bar 4 is coupled by spherical bearing with the crossbeam and wheel spoke type sensor 26 of lower floor framework 15, and top is by spiral shell Female 33 fix;The column 14 being bolted, upper strata are provided between the corner of upper strata framework 13 and the corner of lower floor's framework 15 Four vertical facades between framework 13 and lower floor's framework 15, wherein the fixation that three facades are provided with inverted " v " shape arrangement is oblique Support 16, another facade is provided with the movable diagonal brace 18 of " V "-shaped arrangement, the one end of movable diagonal brace 18 with ball pivot and upper strata frame The curb girder 23 of frame 13 is coupled, and the other end passes through bolted on connection with lower floor's framework 15;Upper strata framework 13 is overall " day " font welding Structure, middle girder 24 is provided with symmetrical vertical elongated slot 22, and screw thread lifting locating taper pin 12, upper strata framework are provided with groove 13 forward and backward end carriage 25 is the welding structure of two back-to-back channel-section steels and upper and lower panel, and the upper and lower panel is provided with two left sides The right symmetrical elongated slot with the one end fits of vertical spring pull bar 4;The front beam lower section of upper strata framework 13 is provided with the longitudinal handwheel 9 of band Longitudinally adjust push-pull bar 17, upper strata framework 13 is provided with the lateral adjustments with horizontal handwheel 20 near the side of horizontal reaction frame 7 Push-pull bar 8;The front beam of upper strata framework 13 is provided with the vertical fastening screw 11 with vertical handwheel 19.
The longitudinally adjust push-pull bar 17, lateral adjustments push-pull bar 8, the free end of vertical fastening screw 11 are equipped with and mould Intend the contiguous block that bogie coordinates.
The rear-side cross member of lower floor's framework 15 is provided with telescopic upper track 3.
The column 14 is the flanged (FLGD) column construction of end face.
The activity-oriented block of adjustable track gauge is provided between the screw thread lifting locating taper pin 12 and upper strata framework 13.
Described simulation bogie frame is made up of arranged on left and right sides beam and two end carriages, there is provided driver part is specifying Mounting interface, while providing installation interface for testing stand loading frame, simulation bogie frame is provided with:
The independent auxiliary travelling wheel 31 2 for rotating with wheel rim, same guide rail is used with driving wheel to 27;
Directly over its curb girder upper surface axle box, the tapered spigot seat 30 of setting φ 60~80, totally two;
Crossbeam trailing flank behind, arranges the pin-and-hole para-position bolt joint seat 32 with T-slot fork, totally two;
In curb girder both upper ends thereof, the vertical bolt head connecting seat 29 of T-slot is set;
Wherein, vertical oil cylinder 5, horizontal oil cylinder 6 and the two ends of longitudinal electric push-pull bar 2 are equipped with ball pivot, can spacing or The degree of freedom in other directions is not affected during loading, each true and accurate to loading is ensured that.Vertical oil cylinder 5 totally four, One end is mounted directly on the ground by installing plate 10, and the other end is connected for 15 4 jiaos with lower floor framework, is provided during for testing and is hung down To load and exciting force, motion is risen and fallen up and down, nods and is sidewindered in realization.Horizontal one end of oil cylinder 6 and the side curb girder of upper strata framework 13 23 connections, the other end is connected with horizontal reaction frame 7, realizes transverse shifting.The ball pivot seat of two one end of longitudinal electric push-pull bar 2 point Be not connected with all side beam two ends of lower floor framework 15, the ball pivot seat of two one end of spacing push-pull bar 21 respectively with the rear side of lower floor framework 15 Beam two ends connect, and the other end is connected with longitudinal reaction frame, are capable of achieving position adjustments and the angle of attack adjustment of front and back position.Vertical spring Totally four, pull bar 4, major function be apply static shaft weight, be made up of pull bar, sleeve and spring etc., its spring spool lower surface with Installing plate connects, and crossbeam, spherical bearing and the wheel spoke type sensor 26 of lower floor's framework 15 are partially passed through on vertical spring pull bar 4 Afterwards, end attaching nut 33, during downward nutting, vertical spring pull bar 4 shortens, and spring is compressed, under being applied on crossbeam Pulling force increases, and realizes that static shaft is reloaded.
Column 14 is the column construction with end flanges being welded by steel plate and quarter bend, totally four, is arranged in loading 1 four jiaos of framework, is connected respectively with bolt with upper strata framework 13 and the frame of lower floor's frame 15.
The operating process of testing stand:
Dynamic load framework is put in order original position by the 1st step
Testing stand dynamic load, 1. above pushes away by four vertical oil cylinders 5, and by handle insertion support block is swung, then by oil Cylinder is unloaded, and loading frame 1 is fallen in support block, is 2. gone up the extension of track 3 and is withstood rail wheel, 3. snaps in lateral adjustments push-pull bar 8 The T-slot bayonet socket of loading frame 1;
2nd step pushes and is fixed to loading frame by bogie is simulated
Artificial to promote simulation bogie to appear on the stage, till wheel is contacted with rail wheel, the vertical fastening screw 11 of alignment slips into vertical To groove, alignment longitudinally adjust push-pull bar 17 slips into vertical groove, and two traction adjustment lengthwise positions of longitudinally adjust push-pull bar 17 coordinate Lateral adjustments push-pull bar 8 adjusts lateral attitude, and screw thread lifting locating taper pin 12 is inserted in the corresponding pin-and-hole 30 of simulation bogie, Then four vertical fastening screws 11 are adjusted, simulation bogie is adjusted to horizontal level, make screw thread lift the He of locating taper pin 12 Pin-and-hole 30 is coaxially fitted close, and in simulation bogie front and back end insertion cushion block, now aids in travelling wheel 31 hanging, auxiliary of dismantling Travelling wheel 31, movable diagonal brace 18 is fallen and is closed the door, and tightens bolt, the electronic retraction of upper track 3;
Loading frame is placed in working position by the 3rd step
With four jacking loading frames 1 of vertical oil cylinder 5, support block is turned on, adjust the length of lateral adjustments push-pull bar 8, made Gap is of substantially equal at left and right wheelses 27 and the two of rail wheel, and the piston rod of vertical oil cylinder 5 is slowly retracted and makes wheel 27 and rail wheel Contact, now takes out horizontal push-pull bar 8, and further compression simulation bogie primary spring 28, facilitates initial adjustment spring pull bar spiral shell Female 33, then vertical oil cylinder 5 unload, adjustment longitudinal electric push-pull bar 2 turns to simulation and is placed on directly over rail wheel, locking Screw rod, loading frame 1 is longitudinally fixed.The nut of the top of vertical spring pull bar 4 is further turned, reads wheel spoke type sensor 26 Number reaches setting.
4th step is rotated and is vibrated load test
Electrical power makes testing stand rolling-operation, and every rotation is carried out with vibration load test by test program regulation.Example Such as:1. degree of the disturbing deformation of wheel shaft;2. dynamic takes turns the low frequency part of weight;3. wheel bottom realizes that torque is loaded;4. from rail Vertical dither excitation;5. motor with wheel to lateral displacement;Although laterally centrifugal force is difficult to simulate, wheel pair and motor it Between relatively transverse displacement, lateral displacement exciting can be applied on simulation bogie realizing.
5th step simulates bogie and disengages and roll out loading frame with loading frame
After off-test main drive motor is shut down, vertical oil cylinder 5 is drop-down, trip spring pull-rod nut and spacing push-pull bar spiral shell Imperial mother, vertical oil cylinder 5 extends extreme higher position, and rotational support block makes it turn to the lower section of loading frame 1;Horizontal oil cylinder 6 is adjusted To middle position, adjust the horizontal length of push-pull bar 8 and its end is snapped in into the T-slot bayonet socket of the top of loading frame 1, unload all oil cylinders Loading frame 1 is set to fall in support block;Flexible upper track 3 stretches out and withstands rail wheel, and simulation bogie installs roller, then will hang down Unclamp to spring pull bar 4, make auxiliary travelling wheel 31 fall on upper track, then screw thread lifting locating taper pin 12 is screwed out into disengaging mould Intend bogie, the movable diagonal brace 18 of loading frame 1 rises and opens the door, the elongation control simulation bogie of longitudinally adjust push-pull bar 17 and its Wheel is backed to till contacting with upper track 3, longitudinally adjust push-pull bar 17 is disengaged with bogie, manually bogie is pulled out into cage Shape loading frame 1, is hung on automobile and is transported by driving.

Claims (6)

1. a kind of railway locomotive driver part dynamic loading device, including being coupled located at installing plate (10) and with loading frame (1) Vertical oil cylinder (5) and horizontal oil cylinder (6), it is characterised in that:Vertical oil cylinder (5) and horizontal oil cylinder (6) and longitudinal electric push-and-pull The two ends of bar (2) are equipped with ball pivot, and one end ball pivot seat and the installing plate (10) of vertical oil cylinder (5) are consolidated, other end ball pivot seat with Lower floor's framework (15) connects, and one end ball pivot seat of horizontal oil cylinder (6) is connected with horizontal reaction frame (7), other end ball pivot seat with it is upper The curb girder connection of layer framework (13) left side;One end ball pivot seat of two longitudinal electric push-pull bars (2) respectively with lower floor's framework (15) before Curb girder two ends connect, and one end ball pivot seat of two spacing push-pull bars (21) is connected respectively with lower floor's framework (15) rear side beam two ends; The spring spool of vertical spring pull bar (4) is connected with installing plate (10), and the other end of vertical spring pull bar (4) passes through spherical bearing It is coupled with the crossbeam and wheel spoke type sensor (26) of lower floor's framework (15), top is fixed by nut (33);Upper strata framework (13) Corner and the corner of lower floor's framework (15) between be provided with the column (14) being bolted, upper strata framework (13) and lower floor's frame The fixed diagonal brace (16) in inverted " v " shape arrangement and " V "-shaped arrangement are provided between the facade of frame (15) and column (14) Movable diagonal brace (18);Upper strata framework (13) middle girder (24) is provided with symmetrical vertical elongated slot (22), and spiral shell is provided with groove Stricture of vagina lifting locating taper pin (12);End carriage (25) is provided with the longitudinally adjust push-and-pull with longitudinal handwheel (9) before and after upper strata framework (13) Bar (17), curb girder (23) of the upper strata framework (13) near the side of horizontal reaction frame (7) is provided with the horizontal stroke with horizontal handwheel (20) To push-pull bar (8) is adjusted, end carriage (25) is provided with the vertical fastening screw with vertical handwheel (19) before and after upper strata framework (13) (11)。
2. a kind of railway locomotive driver part dynamic loading device according to claim 1, it is characterised in that:The longitudinal direction Adjust push-pull bar (17), lateral adjustments push-pull bar (8), the other end of vertical fastening screw (11) and be equipped with and match somebody with somebody with simulation bogie The contiguous block of conjunction.
3. a kind of railway locomotive driver part dynamic loading device according to claim 1, it is characterised in that:The lower floor The horizontal end carriage in side of framework (15) is provided with track (3).
4. a kind of railway locomotive driver part dynamic loading device according to claim 1, it is characterised in that:The column (14) end face is flanged.
5. a kind of railway locomotive driver part dynamic loading device according to claim 1, it is characterised in that:The screw thread The activity shift block of adjustable track gauge is provided between lifting locating taper pin (12) and upper strata framework (13).
6. a kind of railway locomotive driver part dynamic loading device according to claim 1, it is characterised in that:The activity The one end of (18) with ball pivot diagonal brace is coupled with the curb girder (23) of upper strata framework (13), the other end and lower floor's framework (15) are by spiral shell Bolt is coupled.
CN201510007999.7A 2015-01-07 2015-01-07 Dynamic loading device of railway locomotive drive component CN104568478B (en)

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CN108956067B (en) * 2018-04-02 2020-09-11 上海工程技术大学 Rolling vibration test bed for simulating rail transit wheel-rail relation
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