CN110018001A - A kind of the steering system assembly experimental rig and method of simulated roadway - Google Patents
A kind of the steering system assembly experimental rig and method of simulated roadway Download PDFInfo
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- CN110018001A CN110018001A CN201910335906.1A CN201910335906A CN110018001A CN 110018001 A CN110018001 A CN 110018001A CN 201910335906 A CN201910335906 A CN 201910335906A CN 110018001 A CN110018001 A CN 110018001A
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- fixation member
- fixed
- steering
- steering system
- system assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
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- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to the steering system assembly experimental rigs and method of a kind of simulated roadway.The steering system assembly experimental rig includes floor, the first fixation member, the crossbeam being arranged in above floor, the second fixation member, testing stand, subframe rear end fixation member, diverter fixation member, the setting actuator of side, pallet under floor, first fixation member is fixed on floor, second fixation member is fixed on crossbeam, and the actuator pushes and pulls pallet from the downside on floor.The embodiment of the present invention can realize that actuator controls left and right tyre load value, diverter cylinder body rack force/steering linkage power of the steering system under the distribution of different axle loads can be measured, and the influence to the fatigue endurance reliability test of steering system assembly such as ground friction resistance, front overhang system synthesis, wheel system can be comprehensively considered, true and reliable experiment is provided to mark data for the design etc. of steering system assembly, reduces development cycle, the save the cost of steering system assembly.
Description
Technical field
The invention belongs to automotive performance the field of test technology, and in particular to a kind of steering system assembly test of simulated roadway
Device and method.
Background technique
In the Design and manufacturing process of automobile, the emulation of single-piece automobile fatigue endurance and iterative model are needed, to obtain automobile
The reliability indexs parameter such as intensity, fatigue endurance of the system synthesis such as suspension system, steering system, the wheel system of front overhang.Together
When, making vehicle stage and OTS (Off Tool Sample tooling exemplar) authentication phase, it is also desirable to which fatigue is carried out to system synthesis
Durable reliability test.
In the prior art, it is the reliability indexs data such as intensity, the fatigue endurance of acquisition steering system, usually carries out first
Single components test, system synthesis are tested, and after no problem, steering system is carried to progress vehicle high-strength structure on vehicle
Durable test.And the steering system fatigue endurance reliability test carried out under vehicle assembled state, steering system may be
Not up to design cycle fare register occurs as soon as the problems such as different degrees of cracking, oil leak, deformation.Therefore, in above-mentioned test mode,
When the components test and system synthesis for carrying out steering system are tested, do not quantify to consider the system zeros such as suspension system, wheel system
The influence that part tests steering system；Do not consider under vehicle driving status in bench test, left and right tire load change is to steering
Influence when system turns to；When having not been able to quantization and turning to, frictional ground force, wheel system treadwear etc. to steering system unified test
The influence of examination.In addition, each system to front overhang individually carries out bench test, somewhat expensive.It is in the prior art exactly individually right
Steering system is tested, and does not include the other parts of front overhang assembly, be not directed to comprehensively consider frictional ground force, suspension system,
The influence to steering system such as tire system.
Summary of the invention
In order to solve above-mentioned the technical issues of failing consideration front overhang system synthesis global facility, the invention proposes a kind of moulds
The steering system assembly experimental rig and method of quasi- road.
The steering system assembly experimental rig includes floor, the first fixed part that can be fixed with the front end of subframe
Part, the crossbeam being arranged in above floor, the second fixation member that can be fixed with damper upper end, the test being arranged on floor
Platform, the diverter fixation member being arranged in above floor, is arranged on ground the subframe rear end fixation member being arranged on testing stand
Actuator on the downside of plate, the pallet being arranged in above floor, wherein the first fixation member is fixed on floor, and second is solid
Determine component to be fixed on crossbeam, the actuator pushes and pulls pallet from the downside on floor.
Further, first fixation member is a pair of first column, and second fixation member is a pair of second column,
There is a pair of of subframe rear end fixation member on the side wall of the side of the first column of direction of testing stand,
The diverter fixation member includes that the steering intermediate shaft fixation member being fixed on testing stand and steering rear axle are solid
Determine component, the height of the steering intermediate shaft fixation member is greater than the height for turning to rear axle fixation member,
The steering system assembly experimental rig includes two actuator corresponding with tire and two pallets.
Further, first column includes putting fixation member before the first column ontology and subframe,
It is in tabular that fixation member is put before subframe, is fixed by the first snap ring being sleeved and fixed on the first column ontology
On the first column ontology, the plate face that fixation member is put before subframe is vertical with the axis of the first column ontology,
The plate fastener that first snap ring has lantern ring and is axially arranged outside lantern ring along lantern ring, plate fastener
With can with the groove that is fixed of fixation member is put before subframe.
Further, second column includes the second column ontology and damper fixation member,
Damper fixation member is in tabular, is fixed on dragon by the second snap ring being sleeved and fixed on the second column ontology
On the crossbeam of door beam, the plate face of damper fixation member is vertical with the axis of the second column ontology, the plate of damper fixation member
Shock absorber attachment hole is provided on face.
Further, subframe rear end fixation member includes that the fixed transverse slat of subframe and fixed vertical plate, subframe are fixed
The middle part of fixed vertical plate is arranged in transverse slat,
The top and bottom of the fixed vertical plate have two pairs of strip fixed grooves, and testing stand uses the structure of aligned apertures
Form.
Further, steering intermediate shaft fixation member includes first front panel, the first top plate, the first bottom plate and two first ladders
Shape side plate is provided with positioning groove component on the first top plate, is provided on the first bottom plate for being fixed on testing stand
First fixation hole；And/or
Turning to rear axle fixation member has dismountable structure, including bottom member and overhead, the bottom member
Including second face plate, the second top plate, the second bottom plate and two the second trapezoidal side plates, it is provided on second bottom plate for solid
It is fixed to the second fixation hole on testing stand, be provided on the top plate for the third fixation hole fixed with overhead；It is described
Top plate member includes third front panel, third top plate, third bottom plate and two trapezoidal side plates of third, is arranged on the third bottom plate
Have for the 4th fixation hole corresponding with third fixation hole, be provided on the third front panel passed through for steering intermediate shaft it is logical
Hole.
Further, the steering system assembly experimental rig further includes the motor fixing frame for installing motor, and motor is solid
Determine frame to be fixed on testing stand.
The embodiment of the present invention also provides a kind of diverter cylinder body rack force/steering linkage power of wheel steering system assembly
Tire is placed in tabular pallet using the steering system assembly experimental rig of simulated roadway as described above by measurement method
On, front overhang system synthesis is connect with steering system assembly, steering wheel assembly is connect with steering system assembly, total in steering system
At steering linkage on adhering resistance strain sheets, by actuator adjust tire height, and determine tyre load value,
By the steering wheel that spins, so that tire is turned round on tabular pallet to measurement steering linkage resistance value obtains
Resistance change amount, to measure diverter cylinder body rack force/steering linkage power.
Further, in the method, resistance strain gage patch is pasted with silica gel and is wrapped in steering linkage, silica gel solidification
Resistance strain gage is demarcated afterwards.
The embodiment of the present invention also provides a kind of fatigue endurance method for testing reliability of vehicle front overhang system synthesis, using such as
The steering system assembly experimental rig of the upper simulated roadway, tire is placed on indent pallet, by front overhang system synthesis
It is connect with steering system assembly, the height of tire is adjusted by actuator, adjusts the load value of tire,
Motor is connect with steering system assembly, by the reciprocating rotation of motor to the fatigue endurance of vehicle front overhang system synthesis
Reliability is tested.
Further, motor is connect by shaft coupling with steering system assembly, and the pumping signal of motor is sinusoidal signal, described
The Velocity-time course of sinusoidal signal is less than or equal to the most great circle number of steering wheel.
The steering system assembly experimental rig and method of the simulated roadway of the embodiment of the present invention are, it can be achieved that actuator control is left
Right tyre load value can measure diverter cylinder body rack force/steering linkage power of the steering system under the distribution of different axle loads, and
And ground friction resistance, suspension system, wheel system etc. can be comprehensively considered to the fatigue endurance reliability of steering system assembly
The influence of test.True and reliable experiment is provided to mark data for design, the analysis of Fatigue-life etc. of steering system assembly, thus
Reduce development cycle, the save the cost of steering system assembly.
Detailed description of the invention
Fig. 1 is the explosive view of wheel steering system assembly；
Fig. 2 is the explosive view of the front overhang system synthesis of automobile；
Fig. 3-10 is that the structure of the steering system assembly experimental rig of the simulated roadway of the first, second embodiment of the invention is shown
It is intended to；
Figure 11 a, Figure 11 b are the steering system assembly experimental rig of the simulated roadway of the first, second embodiment of the invention
The structural schematic diagram of first column；
Figure 12 a, Figure 12 b are the steering system assembly experimental rig of the simulated roadway of the first, second embodiment of the invention
The structural schematic diagram of second column；
After subframe of the Figure 13 for the steering system assembly experimental rig of the simulated roadway of the first, second embodiment of the invention
Hold the structural schematic diagram of fixation member；
Figure 14 a, Figure 14 b are respectively that the steering system assembly of the simulated roadway of the first, second embodiment of the invention tests dress
The structural schematic diagram of the steering intermediate shaft fixation member 9 and steering rear axle fixation member 10 set；
Figure 15 is the actuator control of the steering system assembly experimental rig of the simulated roadway of the first, second embodiment of the invention
The control block diagram of tyre load value processed.
Wherein: 1- front overhang system synthesis, 1-1- subframe, 1-2- stabilizer bar, 1-3- control arm, 1-4- clamp and system
Dynamic assembly, 1-5- damper, 1-6- connecting rod；2- steering system assembly, 2-1- steering linkage, 2-2- dirt-proof boot, 2-3- are turned to
Front axle, 2-4- diverter cylinder body, 2-5- steering intermediate shaft, 2-6- booster, 2-7- turn to rear axle, 2-8- steering wheel assembly；3-
Actuator, 4- actuator mounting rack, the floor 5-, 6- pallet, 6-2- pallet, 7- tire, 8- testing stand, 9- steering intermediate shaft are fixed
Component, 10- turn to rear axle fixation member, 11- gantry beam, 12- damper fixation kit, 13- fore sub frame fixation kit, 14-
Subframe rear end fixation member, 15- motor fixing frame, the fixed shell of 16- motor, 17- motor
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
The embodiment of the present invention proposes a kind of steering system assembly experimental rig of simulated roadway, can comprehensively consider ground
The influence to the fatigue endurance reliability test of steering system assembly such as frictional resistance, front overhang system synthesis, wheel system.
Referring to Fig.1, wheel steering system assembly 2 includes steering linkage 2-1, dirt-proof boot 2-2, steering front shaft 2-3, diverter
Cylinder body 2-4, steering intermediate shaft 2-5, booster 2-6 and steering rear axle 2-7, turn to rear axle 2-7 and connect with steering wheel assembly 2-8.
Wherein, diverter cylinder body 2-4, steering intermediate shaft 2-5, booster 2-6, steering rear axle 2-7 and steering wheel assembly 2-8 sequence connect
It connects, diverter cylinder body 2-4 is also connected to steering front shaft 2-3, and the both ends steering front shaft 2-3 are connected with steering by dirt-proof boot 2-2 and draw
Bar 2-1.
Referring to Fig. 2, the front overhang system synthesis 1 of automobile includes subframe 1-1, stabilizer bar 1-2, control arm 1-3, clamp
And brake assembly 1-4, damper 1-5 and connecting rod 1-6.Wherein, stabilizer bar 1-2 is fixed on subframe 1-1, it is laterally steady
The both ends of fixed pole 1-2 are stretched out from the two sides of subframe 1-1 and are connected respectively to one end of ipsilateral connecting rod 1-6；Steering linkage
The end of 2-1 is connected to clamp and brake assembly 1-4；Clamp and brake assembly 1-4 are fixed on the inside of tire 7；The control of L-type
The bending part of arm 1-3 is connected on subframe 1-1, and ball pin one end of the control arm 1-3 of L-type is connected to clamp and brake assembly 1-
4；The lower end of damper 1-5 is connected to clamp and brake assembly 1-4；The other end of connecting rod 1-6 is connected to the middle part of damper.
Hereinafter, in conjunction with attached drawing 1-15 to the steering system assembly experimental rig of the simulated roadway of first embodiment of the invention into
Row explanation.The steering system assembly experimental rig includes floor 5, can fix with the first of the front end of subframe 1-1 fixation
Component, the crossbeam that 5 top of floor is arranged in, the second fixation member that can be fixed with the upper end damper 1-5, setting are on floor 5
On testing stand 8, the subframe rear end fixation member 14 being arranged on testing stand 8, the diverter that is arranged in above floor fix
Component, the actuator 3 that 5 downside of floor is arranged in, the pallet 6 that 5 top of floor is arranged in, the first fixation member are fixed at ground
On plate 5, the second fixation member is fixed on crossbeam, and the actuator 3 pushes and pulls pallet 6 from the downside on floor 5.
In the present embodiment, first fixation member is a pair of first column 13, and there is simulating auxiliary frame to be fixed on vehicle
The effect of body.A pair of first column 13 is fixed on floor 5, wherein the floor 5 is preferably detachable irony floor.Institute
Stating the first column 13 includes point fixation member 13-2 before the first column ontology 13-1 and subframe, as shown in Figure 11 a, Figure 11 b.It is secondary
It is in tabular that fixation member 13-2 is put before vehicle frame, is fixed on the first column ontology 13-1, and fixation member 13-2 is put before subframe
Plate face it is vertical with the axis of the first column ontology 13-1, before subframe put fixation member 13-2 plate face on be provided with connection
Hole.Preferably, it is solid by the snap ring 13-3 being sleeved and fixed on the first column ontology 13-1 that fixation member 13-2 is put before subframe
It is scheduled on the first column ontology 13-1, the plate card that the snap ring 13-3 has lantern ring and is axially arranged outside lantern ring along lantern ring
Component, plate fastener have can with the groove that is fixed of fixation member 13-2 is put before subframe.Such snap-in structure
It is arranged so that putting the more firm of the plate face installation of fixation member 13-2 before subframe.
Second fixation member is a pair of second column 12, has simulation damper 1-5 effect fixed on vehicle body.
A pair of second column 12 is fixed on crossbeam, and the crossbeam is preferably the crossbeam of gantry beam 11, and gantry beam 11 is fixed on ground
On plate 5.Second column 12 includes the second column ontology 12-1 and damper fixation member 12-2, such as Figure 12 a, Figure 12 b institute
Show.Damper fixation member 12-2 is in tabular, is fixed on the crossbeam of gantry beam 11, the plate face of damper fixation member 12-2
It is vertical with the axis of the second column ontology 12-1, shock absorber attachment hole is provided in the plate face of damper fixation member 12-2.Subtract
Shake device fixation member 12-2 passes through the snap ring 12-3 being sleeved and fixed on the second column ontology 12-1 and is fixed on the first column ontology
On 13-1.
Specifically, on the side wall of the side of the first column 11 of direction of testing stand 8 there is a pair of of subframe rear end to fix
Component 14, for fixing the rear portion of subframe 1-1, simulating auxiliary frame is fixed on vehicle body.As shown in figure 13, the subframe rear end
Fixation member 14 includes the fixed transverse slat 14-1 and fixed vertical plate 14-2 of subframe, and the fixed transverse slat 14-1 setting of subframe is fixed perpendicular
The middle part of plate 14-2, the two sides of the fixed transverse slat 14-1 of subframe are abutted by the right angle avris of a pair of of triangular shape riser to be fixed.It is described
The top and bottom of fixed vertical plate 14-2 have two pairs of strip fixed grooves, so as to be consolidated subframe rear end by bolt
Determine component 14 to be fixed on testing stand 8.Preferably, structure type of the testing stand 8 using aligned apertures, subframe rear end fixation member
14 have strip fixed groove, guarantee the adjustability of the rear portion installation of subframe 1-1.
Diverter fixation member in the present embodiment includes the steering intermediate shaft fixation member 9 being fixed on testing stand and turns
To rear axle fixation member 10, as shown in Figure 10, Figure 14 a and Figure 14 b.It can be by steering system assembly by diverter fixation member
2 and steering wheel assembly 2-8 is mounted on steering system assembly experimental rig, is simulated steering system assembly 2 and steering wheel assembly
2-8 is fixed on vehicle body.
Specifically, the height of steering intermediate shaft fixation member 9 is greater than the height for turning to rear axle fixation member 10.
Steering intermediate shaft fixation member 9 includes first front panel 9-1, the first top plate, the first bottom plate 9-3 and two first ladders
Shape side plate is provided with positioning groove component 9-2 on the first top plate, is provided on the first bottom plate 9-3 for being fixed to test
The first fixation hole on platform 8.
Steering intermediate shaft fixation member 10 has dismountable structure, including bottom member and overhead.The bottom
Component includes second face plate 10-1, the second top plate, the second bottom plate 10-3 and two the second trapezoidal side plates, second bottom plate
It is provided with the second fixation hole for being fixed on testing stand 8 on 10-3, is provided on the top plate for solid with overhead
Fixed third fixation hole；The top plate member includes that third front panel 10-2, third top plate, third bottom plate and two thirds are trapezoidal
Side plate is provided with for the 4th fixation hole corresponding with third fixation hole, the third front panel 10-2 on the third bottom plate
On be provided with the through-hole passed through for steering intermediate shaft.
Due to the bottom member of steering intermediate shaft fixation member 10 and the detachable structure of overhead, so as to pass through
The bearing height of bottom member and/or overhead adjustment steering system assembly is replaced, wherein.Steering intermediate shaft fixation member 9
Bearing height can pass through on positioning groove component 9-2 increase component carry out height adjustment.
In the first embodiment of the present invention, it is adapted with two tires 7, the steering system assembly examination of the simulated roadway
Experiment device includes two actuator 3 and two pallets 6.
The steering system assembly experimental rig of simulated roadway based on first embodiment of the invention, the present invention also provides one kind
Diverter cylinder body rack force/steering linkage power measurement method of wheel steering system assembly, using first embodiment of the invention
Simulated roadway steering system assembly experimental rig, tire 7 is placed on tabular pallet 6, steering system can be simulated
Ground drag when steering；Front overhang system synthesis 1 is connect with steering system assembly 2, in the steering linkage 2- of steering system assembly 2
Adhering resistance strain sheets on 1；The height of tire 7 is adjusted by actuator 3, and determines tyre load value；Steering wheel assembly 2-8 with
Steering system assembly 2 connects.By the steering wheel that spins, so that tire 7 is turned round on tabular pallet 6 to measurement, which turns to, draws
Bar resistance value obtains resistance change amount, to measure diverter cylinder body rack force/steering linkage power.
Specifically, resistance strain gage patch is pasted with silica gel and is wrapped on steering linkage 2-1 in the measurement method, silicon
Resistance strain gage is demarcated after gelling is solid.
Referring to Fig.1 5, computerized control system can select the tyre load value of actual measurement, fixed tyre load value or random
Tyre load value controls the height that actuator 3 adjusts pallet 6 by RPC control system, adjusts tyre load value.Wherein, it surveys
Tyre load value pass through six square phase equipment and carry out actual road test and obtain in conjunction with road modal data.
The steering system assembly experimental rig and method of the simulated roadway of first embodiment of the invention have the advantage that
1) comprehensively consider the influence of ground drag, front overhang system synthesis to steering system assembly fatigue endurance reliability.
1. tool is there are two damper: gantry beam is fixed on T-slot floor, and being fixed on the crossbeam of gantry beam can be with
The second fixed fixation member of damper upper end, damper are fixed in the second fixation member, reach damper and be fixed on
Effect on vehicle body；
2. there are two put fixation member before the subframe that can be fixed with the front end of subframe for tool: the first column ontology is fixed
It puts fixation member on floor, before subframe to be fixed on the first column ontology, the front end of subframe is fixed to solid point before subframe
Determine on component, thus the front end for reaching subframe effect fixed on vehicle body；
3. there are two the subframe rear end fixation members for the rear portion fixed to subframe for tool: testing stand is fixed on floor
On, subframe rear end fixation member is fixed on testing stand, and the rear portion of subframe is fixed on subframe rear end fixation member
On, to reach subframe rear end effect fixed on vehicle body；
4. there are two diverter fixation members for tool: testing stand is fixed on floor, steering intermediate shaft fixation member 9 and steering
Rear axle fixation member 10 is fixed on testing stand, and steering system assembly is fixed on steering intermediate shaft fixation member 9 and turns to
In rear axle fixation member 10, to achieve the effect that steering system assembly is fixed on vehicle body.
2) influence of the left and right tyre load value to steering system assembly in simulated automotive driving process.
The simulation of front overhang system synthesis is fixed on vehicle body, and tire is placed on the pallet for being furnished with sand paper, two groups of actuator controls
Tire rising height in left and right processed, so as to adjust the load value of left and right tire.When wheel steering, real vehicle or so tire is reproduced not
With the steering system working condition under load-up condition.
3) tyre load value, fixed tyre load value or random tyre load value of actual measurement can be inputted to actuator.
4) it realizes to the measurement of diverter cylinder body rack force/steering linkage power.
Using strain resistor measuring technique, resistance strain gage is attached in the steering linkage of steering system assembly, by beating
Turn steering wheel, the variation of strain bridge resistance signal is obtained, to realize the survey of diverter cylinder body rack force/steering linkage power
Amount.
6) versatility of test device is realized.
1. the first column for installing the front end of subframe is fixed on floor, while putting fixation member before subframe using circle
Shape structure type guarantees the adjustability of the front end installation of subframe；
2. on the rear portion to subframe rear end fixation member for installing subframe, testing stand uses the structure type of aligned apertures,
Subframe rear end fixation member uses strip fixed groove simultaneously, guarantees the adjustability of the rear portion installation of subframe；
3. the second column of mounting shock absorber is fixed on the crossbeam of gantry beam, damper fixation member uses circular configuration
Form guarantees the adjustability of damper installation；
4. floor uses detachable structure form, two groups of actuator horizontal space positions are adjustable, guarantee the wheel of different wheelbases
Tire can be placed and is fixed on pallet.
In conjunction with attached drawing 1-15, on the basis of the steering system assembly experimental rig of the simulated roadway of first embodiment of the invention
On, the steering system assembly experimental rig of the simulated roadway of second embodiment of the invention is illustrated.
The steering system assembly experimental rig of the simulated roadway of second embodiment of the invention further includes for motor to be arranged
Motor fixing frame 15.Preferably, in the present embodiment, motor fixing frame 15 is fixed on testing stand 8, and motor fixing frame 15 passes through
The fixed motor 17 of the fixed shell 16 of motor.
The steering system assembly experimental rig of simulated roadway based on second embodiment of the invention, the present invention also provides one kind
The fatigue endurance method for testing reliability of front overhang system synthesis, using the steering system of the simulated roadway of second embodiment of the invention
Tire 7 is placed on indent pallet 6-2 by assembly experimental rig, as shown in figure 9, ground when steering system turns to can be simulated
Resistance；Front overhang system synthesis 1 is connect with steering system assembly 2；The height of tire 7 is adjusted by actuator 3, adjusts tire 7
Load value；Motor 17 is connect with steering system assembly 2, by the reciprocating rotation of motor 17 to the tired of wheel steering system assembly
Labor durable reliability is tested.
Specifically, motor 17 is connect by shaft coupling with steering system assembly 2.When motor 17 works, steering column shaft companion
It is rotated with the excitation of motor, the intracorporal rack gear of diverter cylinder is transferred to by steering screw, rack drives tire occurs
It turns to.The pumping signal of motor 17 is sinusoidal signal, guarantees that motor can be motivated with reciprocating rotary.The speed of the sinusoidal signal of input
Degree-time history is less than or equal to the most great circle number of steering wheel (the circle number of different automobile types is different, and general vehicle is 2.5-3.5 circle).
When 17 working in reciprocating mode of motor, steering system assembly 2 begins to carry out fatigue endurance reliability test, and steering system assembly 2 exists
It completes during reliable durable approves mileage, there can be no cracking, desoldering, parts to fall off, oil leak, steering behaviour are decreased obviously
Situation.
Referring to Fig.1 5, computerized control system can select the tyre load value of actual measurement, fixed tyre load value or random
Tyre load value controls the height that actuator 3 adjusts pallet 6 by RPC control system, adjusts tyre load value.When motor is past
When moving again, motor is motivated by coupling pair wheel tire, and excitation condition is transferred to front overhang system synthesis, wheel system and turns
To system synthesis etc., so as to complete fatigue endurance reliability test.Wherein, the tyre load value of actual measurement is set by six square phase
It is standby to carry out actual road test and obtained in conjunction with road modal data.
The steering system assembly experimental rig and method of the simulated roadway of second embodiment of the invention have the advantage that
1) comprehensively consider the influence of ground drag, front overhang system synthesis to steering system assembly fatigue endurance reliability.
1. tool is there are two damper: gantry beam is fixed on T-slot floor, and being fixed on the crossbeam of gantry beam can be with
The second fixed fixation member of damper upper end, damper are fixed in the second fixation member, reach damper and be fixed on
Effect on vehicle body；
2. there are two put fixation member before the subframe that can be fixed with the front end of subframe for tool: the first column ontology is fixed
It puts fixation member on floor, before subframe to be fixed on the first column ontology, the front end of subframe is fixed to solid point before subframe
Determine on component, thus the front end for reaching subframe effect fixed on vehicle body；
3. there are two the subframe rear end fixation members for the rear portion fixed to subframe for tool: testing stand is fixed on floor
On, subframe rear end fixation member is fixed on testing stand, and the rear portion of subframe is fixed on subframe rear end fixation member
On, to reach subframe rear end effect fixed on vehicle body；
4. there are two diverter fixation members for tool: testing stand is fixed on floor, steering intermediate shaft fixation member 9 and steering
Rear axle fixation member 10 is fixed on testing stand, and steering system assembly is fixed on steering intermediate shaft fixation member 9 and turns to
In rear axle fixation member 10, to achieve the effect that steering system assembly is fixed on vehicle body；
5. having motor fixing frame: motor is connect by shaft coupling with steering system assembly, and motor fixing frame is mounted on examination
It tests on platform, motor (2.5-3.5 circle) back and forth turns to, so that front overhang system synthesis is total to steering system in simulated automotive driving process
At the influence of fatigue endurance reliability；
6. simulation provides ground drag coefficient: having resistance sand paper on tray surface, tire is placed on pallet, when motor is past
When rotating again, tire turns on pallet, so that simulating ground friction resistance can to the fatigue endurance of steering system assembly
By the influence of property.
2) influence of the left and right tyre load value to steering system assembly in simulated automotive driving process.
The simulation of front overhang system synthesis is fixed on vehicle body, and tire is placed on the pallet for being furnished with sand paper, two groups of actuator controls
Tire rising height in left and right processed, so as to adjust the load value of left and right tire.When wheel steering, real vehicle or so tire is reproduced not
With the steering system working condition under load-up condition.
3) tyre load value, fixed tyre load value or random tyre load value of actual measurement can be inputted to actuator.
4) it realizes to the measurement of diverter cylinder body rack force/steering linkage power.
Using strain resistor measuring technique, resistance strain gage is attached in the steering linkage of steering system assembly, by beating
Turn steering wheel, the variation of strain bridge resistance signal is obtained, to realize the survey of diverter cylinder body rack force/steering linkage power
Amount；
5) the reliable fatigue durability test of steering system assembly is realized.
Motor is connect by shaft coupling with steering system assembly, and motor fixing frame is mounted on testing stand, motor (2.5-
3.5 circles) back and forth turn to the reliable fatigue durability test for carrying out steering system assembly.
6) versatility of test device is realized.
1. the first column for installing the front end of subframe is fixed on floor, while putting fixation member before subframe using circle
Shape structure type guarantees the adjustability of the front end installation of subframe；
2. on the rear portion to subframe rear end fixation member for installing subframe, testing stand uses the structure type of aligned apertures,
Subframe rear end fixation member uses strip fixed groove simultaneously, guarantees the adjustability of the rear portion installation of subframe；
3. the second column of mounting shock absorber is fixed on the crossbeam of gantry beam, damper fixation member uses circular configuration
Form guarantees the adjustability of damper installation；
4. floor uses detachable structure form, two groups of actuator horizontal space positions are adjustable, guarantee the wheel of different wheelbases
Tire can be placed and is fixed on pallet；
5. motor fixing frame is fixed on testing stand, for testing stand using arrangement pore structure, the position of motor fixing frame is adjustable；
7) test platform of front overhang system synthesis is realized.By replacing the pallet connecting with actuator, when motor is reciprocal
When movement, motor is motivated by coupling pair wheel tire, and excitation condition is transferred to front overhang system synthesis, wheel system and steering
System synthesis etc., so as to complete the fatigue endurance reliability test of front overhang system synthesis.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (11)
1. a kind of steering system assembly experimental rig of simulated roadway, it is characterised in that: the steering system assembly experimental rig
Including floor (5), the first fixation member that can be fixed with the front end of subframe (1-1), the cross being arranged above floor (5)
Beam, the second fixation member that can be fixed with the damper upper end (1-5), the testing stand (8) being arranged on floor (5), setting exist
Subframe rear end fixation member (14) on testing stand (8), is arranged on floor the diverter fixation member being arranged in above floor
(5) pallet (6) of actuator (3), setting above floor (5) on the downside of, wherein the first fixation member is fixed at floor
(5) on, the second fixation member is fixed on crossbeam, and the actuator (3) pushes and pulls pallet (6) from the downside of floor (5).
2. steering system assembly experimental rig as described in claim 1, it is characterised in that: first fixation member is a pair
First column (13), second fixation member is a pair of second column (12), in the direction the first column (13) of testing stand (8)
Side side wall on there is a pair of of subframe rear end fixation member (14),
The diverter fixation member includes that the steering intermediate shaft fixation member (9) being fixed on testing stand and steering rear axle are fixed
Component (10), the height of the steering intermediate shaft fixation member (9) are greater than the height for turning to rear axle fixation member (10),
The steering system assembly experimental rig includes two actuator (3) corresponding with tire and two pallets (6).
3. steering system assembly experimental rig as claimed in claim 2, it is characterised in that: first column (13) includes the
Fixation member (13-2) is put before one column ontology (13-1) and subframe,
Before subframe put fixation member (13-2) be in tabular, by be sleeved and fixed on the first column ontology (13-1) first
Snap ring (13-3) is fixed on the first column ontology (13-1), and the plate face and the first column of fixation member (13-2) are put before subframe
The axis of ontology (13-1) is vertical,
The plate fastener that first snap ring (13-3) has lantern ring and is axially arranged outside lantern ring along lantern ring, plate engaging
Part have can with fixation member (13-2) groove for being fixed is put before subframe.
4. steering system assembly experimental rig as claimed in claim 2, it is characterised in that: second column (12) includes the
Two column ontologies (12-1) and damper fixation member (12-2),
Damper fixation member (12-2) is in tabular, passes through the second snap ring being sleeved and fixed on the second column ontology (12-1)
(12-3) is fixed on the crossbeam of gantry beam 11, the plate face of damper fixation member (12-2) and the second column ontology (12-1)
Axis is vertical, is provided with shock absorber attachment hole in the plate face of damper fixation member (12-2).
5. steering system assembly experimental rig as claimed in claim 2, it is characterised in that: subframe rear end fixation member
It (14) include subframe fixed transverse slat (14-1) and fixed vertical plate (14-2), subframe fixed transverse slat (14-1) setting is fixed perpendicular
The middle part of plate (14-2),
The top and bottom of the fixed vertical plate (14-2) have two pairs of strip fixed grooves, and testing stand (8) uses aligned apertures
Structure type.
6. steering system assembly experimental rig as claimed in claim 2, it is characterised in that: steering intermediate shaft fixation member (9)
Including first front panel (9-1), the first top plate, the first bottom plate (9-3) and two the first trapezoidal side plates, it is arranged on the first top plate
There is positioning groove component (9-2), the first fixation hole for being fixed on testing stand (8) is provided on the first bottom plate (9-3)；
And/or
Turning to rear axle fixation member (10) has dismountable structure, including bottom member and overhead, the bottom member
Including second face plate (10-1), the second top plate, the second bottom plate (10-3) and two the second trapezoidal side plates, second bottom plate
The second fixation hole for being fixed on testing stand (8) is provided on (10-3), be provided on the top plate for top structure
The fixed third fixation hole of part；The top plate member includes third front panel (10-2), third top plate, third bottom plate and two
Three trapezoidal side plates are provided on the third bottom plate for the 4th fixation hole corresponding with third fixation hole, before the third
The through-hole passed through for steering intermediate shaft is provided on plate (10-2).
7. the steering system assembly experimental rig as described in one of claim 1-6, it is characterised in that: the steering system assembly
Experimental rig further includes for installing the motor fixing frame of motor (15), and motor fixing frame (15) is fixed on testing stand (8).
8. a kind of diverter cylinder body rack force/steering linkage power measurement method of wheel steering system assembly, it is characterised in that:
Using the steering system assembly experimental rig of the simulated roadway as described in one of claim 1-6, tire (7) is placed in plate
On shape pallet (6), front overhang system synthesis (1) is connect with steering system assembly (2), steering wheel assembly (2-8) and steering system
Assembly (2) connection, the adhering resistance strain sheets in the steering linkage (2-1) of steering system assembly (2) are adjusted by actuator (3)
The height of whole tire (7), and determine tyre load value,
By the steering wheel that spins, so that tire (7) is turned round on tabular pallet (6) to measurement steering linkage resistance value obtains
To resistance change amount, to measure diverter cylinder body rack force/steering linkage power.
9. diverter cylinder body rack force/steering linkage power measurement side of wheel steering system assembly as claimed in claim 8
Method, it is characterised in that: in the method, resistance strain gage patch is pasted with silica gel and is wrapped on steering linkage (2-1), silica gel
Resistance strain gage is demarcated after solidification.
10. a kind of fatigue endurance method for testing reliability of vehicle front overhang system synthesis, it is characterised in that: application such as claim
The steering system assembly experimental rig of simulated roadway described in 7, tire (7) is placed on indent pallet (6-2), by front overhang system
System assembly (1) is connect with steering system assembly (2), by the height of actuator (3) adjustment tire (7), adjusts the load of tire (7)
Charge values,
Motor (17) is connect with steering system assembly (2), by the reciprocating rotation of motor (17) to vehicle front overhang system synthesis
Fatigue endurance reliability is tested.
11. the fatigue endurance method for testing reliability of vehicle front overhang system synthesis as claimed in claim 10, it is characterised in that:
Motor (17) is connect by shaft coupling with steering system assembly (2), and the pumping signal of motor (17) is sinusoidal signal, the sine
The Velocity-time course of signal is less than or equal to the most great circle number of steering wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910335906.1A CN110018001A (en) | 2019-04-24 | 2019-04-24 | A kind of the steering system assembly experimental rig and method of simulated roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910335906.1A CN110018001A (en) | 2019-04-24 | 2019-04-24 | A kind of the steering system assembly experimental rig and method of simulated roadway |
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| CN110018001A true CN110018001A (en) | 2019-07-16 |
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| CN201910335906.1A Pending CN110018001A (en) | 2019-04-24 | 2019-04-24 | A kind of the steering system assembly experimental rig and method of simulated roadway |
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| CN (1) | CN110018001A (en) |
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| CN111811841A (en) * | 2020-07-22 | 2020-10-23 | 无锡职业技术学院 | Debugging rack for automobile steering system |
| CN113155487A (en) * | 2021-05-18 | 2021-07-23 | 北京博科测试系统股份有限公司 | Commercial car a steering system test bench |
| CN113640019A (en) * | 2021-08-02 | 2021-11-12 | 荆州裕德机械制造有限公司 | Test bench and test method for reproducing steering abnormal sound |
| CN113772119A (en) * | 2021-10-20 | 2021-12-10 | 中国民航大学 | Airplane wheel-runway friction coefficient measuring vehicle and using method thereof |
| CN114216695A (en) * | 2021-12-15 | 2022-03-22 | 方盛车桥(合肥)有限公司 | Fatigue test device for front axle steering system |
| CN114993692A (en) * | 2022-04-11 | 2022-09-02 | 中国第一汽车股份有限公司 | Brake hose path test bed and test method |
| CN115248126A (en) * | 2022-02-12 | 2022-10-28 | 辽宁机电职业技术学院 | Five-axis steering test device for intelligent network-connected automobile |
| CN117760753A (en) * | 2023-12-25 | 2024-03-26 | 苏州市丰科精密机械有限公司 | Test equipment and test method for automobile steering gear |
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