CN105277275B - Automobile tire road rumble is test bed - Google Patents
Automobile tire road rumble is test bed Download PDFInfo
- Publication number
- CN105277275B CN105277275B CN201510760664.2A CN201510760664A CN105277275B CN 105277275 B CN105277275 B CN 105277275B CN 201510760664 A CN201510760664 A CN 201510760664A CN 105277275 B CN105277275 B CN 105277275B
- Authority
- CN
- China
- Prior art keywords
- tire
- support
- shaft
- toothed belt
- driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Tires In General (AREA)
Abstract
Automobile tire road rumble is test bed, it is related to a kind of tyre noise test device, solving existing tire road surface noise testing method, there are affected by environment big, and the problems such as higher to the environmental requirement of acoustical chamber, including will be divide into upper part and lower part in sound insulation closure assembly by soundproof plate, upper part includes sound transducer device, tire device and hydraulic loading device, and lower part point includes belt driver, variable-frequency motor device and slider cylinder device；Tire device is located at the surface of soundproof plate opening, force snesor and speed probe are set on tire device, sound transducer device is fixed on soundproof plate, and hydraulic loading device is used to control the loading force of tire device, and variable-frequency motor device is connect with belt driver；Belt driver forms simulated roadway, and the information of acquisition sound transducer device, force snesor and speed probe obtains the noise on automobile tire road surface, tire loading force and tire rotational speed respectively.Influence present invention reduces extraneous factor to noise testing.
Description
Technical field
The present invention relates to a kind of tyre noise test devices, and in particular to tire road surface noise testing table apparatus.
Background technique
China vehicles number rapidly increases so that road traffic noise problem is got worse, and research finds " vehicle
" tyre noise can be more than engine noise and exhaust system noise, become Main Noise Sources when hypervelocity.Therefore tire is reduced to make an uproar
Sound is significant to reduction vehicle overall noise or even control city noise pollution.
There are mainly three types of noise of automobile tire test methods traditional at present, respectively coastdown, trailer method, rotary drum method.
One, coastdown, using the test carriage (test carriage itself vibrating noise wants small) for being equipped with test tire, with set
Velocity linear slides past and (closes engine and other transmission devices) specified test section, places noise in specified position and surveys
Instrument is tried, its maximum A weighted sound pressure level is measured.Head of district 50m is tested, noise monitor point is located at vertically dividing equally on face for test section,
The 1.2m on away from ground, at a distance apart from running car center line 7.5m.
The method advantage is: it is easy to operate, do not need additional equipment, but the method by external environment vehicle influenced compared with
Greatly, measuring accuracy is low.
Two, the advantages of trailer method is can to carry out near-field test to the noise generated between tire and road surface, is made an uproar to the external world
The interference of sound has preferable shielding action, can more accurately reflect the noise situation on automobile tire road surface；Disadvantage is the need for specially
The trailer of door design, there are the body vibration noise jamming of trailer and tractor, will receive the influence of the weather conditions such as wind, measure
It as a result is near field noise, it is less consistent with the noise situations of tyre noise to external far-field radiation.
Three, rotary drum method, this method can carry out the simulation on any road surface, can reflect tire road rumble very well, simultaneously
It is convenient for changing tire.But existing rotating drum experiments needs carry out in anechoic room, it is relatively high for the technical requirements of acoustical chamber.
The patent studied in this respect at present mainly has " the bench test device of tire and the tyre performance using the device
Test method " (application number 201310244399.3), " a kind of tire and pavement noise whole-field measuring device " (application number
201310685258.5), the two patents can carry out the simulation on any road surface using rotary drum method, this method, can be very
Reflect tire road rumble well, while being convenient for changing tire.But existing rotating drum experiments needs carry out in anechoic room, for sound
The technical requirements for learning room are relatively high.And apparatus structure is complicated, and experimental result can not really and accurately reflect tire road rumble
Size.In addition there are patent " a kind of tyre/ road surface noise test device " (application number 201310737728.8), this Patent designs
Test device use trailer method, need the trailer specially designed, there are the body vibration noise jamming of trailer and tractor,
Measurement result is near field noise, less consistent with the noise situations of tyre noise to external far-field radiation.A kind of entitled " the vehicle of patent
The patent of noise measuring system " (application number 201410342651.9) uses a kind of novel design scheme, by road surface branch
It supports swivel mount rotation and drives tyre rotation, but this patent has ignored supporting rotary frame that rotation will cause tyre side and transport in the axial direction
It is dynamic, very big influence can be so caused to experimental result.
Summary of the invention
The present invention is to solve existing tire road surface noise testing method there are affected by environment big, and to the environment of acoustical chamber
It is more demanding, it is low there are measuring accuracy the problems such as, it is test bed to provide a kind of automobile tire road rumble.
Automobile tire road rumble is test bed, including will be divide into upper part and lower part in sound insulation closure assembly by soundproof plate,
Upper part includes sound transducer device, tire device and hydraulic loading device, and lower part point includes power transmission toothed belt drive, variable-frequency electric
Machine device and slider cylinder device；
Opening is provided on soundproof plate, tire device is located at the surface of opening, and setting power senses on the tire device
Device and speed probe, sound transducer device are fixed on the front on soundproof plate and being located at tire device, hydraulic loading device
For controlling the loading force of tire device, variable-frequency motor device is connect with power transmission toothed belt drive；
The power transmission toothed belt drive includes steel wire toothed belt, active support section, support section and driven support section, institute
It states steel wire toothed belt and active support section, support section and driven support section cooperates, form simulated roadway, the steel wire tooth
The rotation of shape band drives tire device rotation, and the information of acquisition sound transducer device, force snesor and speed probe obtains respectively
Obtain the noise on automobile tire road surface, tire loading force and tire rotational speed.
Beneficial effects of the present invention: testing stand of the present invention is simulated tire using V belt translation and tire and not gone the same way
It is travelled on face, solves existing patent structure complexity, troublesome in poeration, safety is low, high cost a series of problems.It specifically includes
The following:
One, the present invention is using the relative motion simulation tire between steel wire tooth form V belt translation and tire in true road surface uplink
It sails, installation support roller between drive roll and driven roller, solving traditional drum dynamometer can not true and accurate simulation road
The problem of face.
Two, the present invention drives toothed belt to rotate using variable-frequency motor, to simulate tire road rumble under different speeds.
Three, the present invention solves conventional gears band using steel wire toothed belt, and belt uniform wearability is poor, and rigidity is small, axis and
The big disadvantage of the stress of bearing.
Four, secondary part of the present invention is mounted in the supporting table of slider cylinder, slider cylinder drive secondary part movement from
And the tensile force of steel wire toothed belt is adjusted, solve the problem that conventional belt is not easy to install, and tensile force is difficult to control.
Five, sound transducer cross bar and nut-welding of the invention, nut can move up and down in sensor support bar, adjust
Sound transducer height solves the disadvantage that existing apparatus cannot accurately measure noise.
Six, blimp dress passes in and out for staff there are two sound-insulation metal door and adjusts test device in the present invention；Sound insulation
Cover installation sound control glass, staff's observable Internal Experiment situation solve the low disadvantage of existing apparatus safety.
Seven, tire and power transmission toothed belt drive are kept apart by soundproof plate inside blimp of the present invention, reduce it is extraneous because
Influence of the element to noise testing.Sound-absorbing material and acoustic material are attached in blimp, are reached good sound insulation and sound absorption effect, are made
The experiment need not carry out also reaching very high accuracy in anechoic room.Solves the excessively high disadvantage of existing apparatus cost.
Detailed description of the invention
Fig. 1 is the front view of the test bed device of automobile tire road rumble；
Fig. 2 is the test bed device top view of automobile tire road rumble；
Fig. 3 is Fig. 2A-A ' cross-sectional view；
Fig. 4 is the test bed device band running part front view of automobile tire road rumble；
Fig. 5 is the test bed tire part axonometric drawing of noise of automobile tire；
Fig. 6 is the test bed sound transducer part axonometric drawing of noise of automobile tire；
Fig. 7 is the test bed blimp part axonometric drawing of noise of automobile tire.
In figure: 1, active shaft supporting frame, 2, variable-frequency motor, 3, soundproof plate, 4, support frame, 5, sound transducer device, 5-
1, nut, 5-2, support rod, 5-3, sound transducer, 5-4, cross bar, 5-5, locating clip, 5-6, support base, 6, hydraulic loaded
Device, 7, tire device, 7-1, wheel hub, 7-2, tire, 7-3, tire axis, 8, steel wire toothed belt, 9, driven roller, 10, driven
Shaft supporting frame, 11, slider cylinder, 12, blimp part, 12-1, blimp, 12-2, the first metallic door, 12-3, sound control glass,
12-4, the second metallic door, 13, support shaft, 14, support roller, 15, the input shaft of drive roll, 16, shaft coupling, 17, motor bottom
The fixed device of seat, 18, frequency converter, 19, speed probe, 20, driving shaft, 21, drive roll, 22, force snesor, 23, driven
Axis, the 24, first support plate, the 25, second support plate.
Specific embodiment
Specific embodiment one, automobile tire road rumble are test bed, including by soundproof plate 3 by sound insulation closure assembly 12
It is inside divide into upper part and lower part, upper part includes sound transducer device, tire device and hydraulic loading device, and lower part point includes tooth
Belt driver, variable-frequency motor device and slider cylinder device；
Opening is provided on soundproof plate 3, tire device is located at the surface of opening, and setting power senses on the tire device
Device and speed probe 19, sound transducer device are fixed on the front on soundproof plate 3 and being located at tire device, hydraulic loaded dress
The loading force for controlling tire device is set, variable-frequency motor device is connect with power transmission toothed belt drive；Variable-frequency motor output shaft passes through
Shaft coupling is coupled with driving shaft in power transmission toothed belt drive, provides torque for V belt translation.
The power transmission toothed belt drive is located at 3 lower part of soundproof plate, and the power transmission toothed belt drive includes steel wire toothed belt 8, active
The outer layer of support section, support section and driven support section, the steel wire toothed belt 8 forms simulated roadway and active support portion
Divide, support section and the cooperation of driven support section, the rotation of steel wire toothed belt 8 drive tire device rotation, acquire sound and pass
The information of sensor arrangement, force snesor 22 and speed probe 19 obtains the noise on automobile tire road surface, tire loading force respectively
And tire rotational speed.
In present embodiment, the active support section includes driving shaft 20, drive roll 21, active shaft supporting frame 1；It is main
The diameter of moving axis 20 and the shaft hole diameter of drive roll 21 are adapted, and axle center is collinear.Driving shaft 20 and drive roll 21 are by bearing
It is coupled, 21 outer layer of drive roll is dentation, is matched with 8 internal layer inner surface dentation of steel wire toothed belt.Driving shaft 20 is by driving shaft branch
Support 1 supports, and there are two active shaft supporting frames 1, and two support frames and drive roll 21 are symmetrical.
Secondary part is made of driven shaft 23, driven roller 9 and driven shaft supporting frame 10；Driven shaft supporting frame 10 has two
A, two support frames and driven roller 9 are symmetrical.9 size of driven rolling is identical as 21 size of drive roll, and outer layer dentation is also identical.
Driven shaft 23 is supported by driven shaft supporting frame 10, and driven shaft supporting frame 10 is fixed in the first support plate 24 by nut, described
First support plate 24 is mounted on 11 sliding rail of slider cylinder, and there are two slider cylinders 11, and two slider cylinders and driven roller 9 are right
Claim.Slider cylinder 11 drives the first support plate 24 to move left and right on the slide rail when working, so that the tensile force of toothed belt is adjusted, it is sliding
Platform cylinder 11 is equipped with locking system.Force sensor 22 is installed, for measuring the tensioning of silk toothed belt 8 on the driven shaft 23
Power.
The support section is made of support shaft 13, support roller 14 and support frame 4.There are two support frames 4, two support frames
It is symmetrical with support shaft 13.Support shaft 13 is coupled by bearing with support roller 14, and the axle center of roller 14 and tire is supported to fill
The tire axis set is on same vertical line.13 diameter of support shaft and support 14 shaft hole diameter of roller are adapted, support shaft 13
Axle center and support cylinder axis are collinear, and support 14 diameter of roller and drive roll 21,9 diameter of driven roller is different, but with actively
Roller 21 is identical with the outer layer dentation of driven roller 9, matches with 8 internal layer inner surface tooth belt shape of steel wire toothed belt.
8 width of steel wire toothed belt is 60cm, and it is inside and outside two layers that steel wire toothed belt 8, which is divided, and internal layer is poly- containing steel wire
It is thin and light to select the toothed belt of the material, therefore can be used for fair speed for articulamentum made of urethane.Linear velocity when transmission can
Up to 50m/s, transmission ratio is up to 10, and efficiency is up to 98%.Rotational noise is smaller than V belt translation, chain conveyer and gear drive, wearability
It is good, it is not required to oil lubrication, solves slippage problems, axis and shaft strength are small, and the service life is than friction belt length；Internal layer inner surface is canine tooth
The outer surface dentation of shape, dentation and drive roll 21, driven roller 9 and support roller 14 is meshed；8 outer layer of steel wire toothed belt
For composite layer, outer layer is also classified into surfaces externally and internally, and outer layer inner surface is small dentation, it and inner layer outer surface match, outside outer layer
Surface is simulated roadway, be can replace with dry bituminous pavement, wet bituminous pavement, muddy covering road surface and thin snow deposit covering road
The identical rough surface of the practical coefficient of road adhesion such as face, can simulate the road surface of different attachment coefficients.
When experiment starts, guarantee that tooth band ectonexine is combined together when toothed belt rotation, experiment terminates, slider cylinder work
Make, secondary part is close to support section, reduces toothed belt tensile force, and toothed belt outer layer is separated with internal layer, can be replaced at this time
Toothed belt outer layer, to complete the replacement of different attachment coefficient simulated roadways.In this patent, active shaft supporting frame, driven shaft branch
Support, it is and symmetrical with roller there are two support roller cage is each.Horizontality is in when toothed belt works, it can be true
Simulation is straight road surface.
Illustrate present embodiment in conjunction with Fig. 3 and Fig. 5, the tire device includes tire 7-2, wheel hub 7-1, speed probe
19 tire 7-2 are mounted on wheel hub 7-1, and force snesor is housed on wheel hub, and tire is driven by tire axis 7-3 and rotated, tire axis 7-3
On have speed probe 19.Tire axis 7-3 is mounted in the second support plate 25 by bearing, and hydraulic loading device 6 can drive
Two support plates 25 move up and down.When experiment, tire 7-2 and steel wire toothed belt 8 are tangent, can be according to different kinds of tyre load needed for testing
Big minor adjustment hydraulic loading device 6, loading force can be measured by force snesor 22 on wheel hub 7-1.Experiment terminates, re-type
When, hydraulic loading device 6 drives tire 7-2 to move upwards, and is convenient for changing tyres of different types.All the sensors all pass through conducting wire
It is connected with computer, experimenter is facilitated to analyze.
In present embodiment, the sound transducer device 5 is made of six parts: 5-1 nut, 5-2 support rod, 5-3
Sound transducer, 5-4 cross bar, 5-5 locating clip, 5-6 pedestal.Sound transducer device 5 is non-standard component, and pedestal 5-6 is cube
Body, support rod 5-2 are cylindrical body, and screw thread is equipped with above cylindrical body, there is a nut 5-1 on support rod, and nut and screw thread match.It is horizontal
The one end bar 5-4 is fixed by welding on nut.Nut up and down motion can adjust cross bar height.Cross bar one end is fixed with fixed
Position folder 5-5, locating clip lower end are fixed on cross bar by a hole, and locating clip upper end is similar to be similar to Ω shape, locating clip selection
Suitable quality has elasticity, will not damage to sound transducer 5-3.When experiment, sound transducer axis and tire axis
Line is conllinear, and entire sound transducer device is fixed on soundproof plate 3 by pedestal 5-6.Sound transducer receiving end distance
Tire axis is 25cm.According to test tire size, it is high to adjust the height-adjustable sound transducer of support frame support rod top nut
Degree, sound transducer are connected by conducting wire with computer, and the data of outflow are analyzed for experimenter on computers.
Sound insulation closure assembly described in present embodiment is by blimp 12-1, the first metallic door 12-2, sound control glass, 12-3 and
Second metallic door 12-4.The overall peripheral shape of blimp 12-1 is cuboid, and blimp 12-1 is divided to upper and lower two by soundproof plate 3
Part, lower half portion are power transmission toothed belt drive, and top half is tyre testing apparatus.Have first in blimp lower half portion front end
Metallic door 12-2, the metallic door are type of push and pull up down, and staff can enter blimp adjustment by the first metallic door 12-2
Power transmission toothed belt drive.It is also equipped with the second metallic door 12-4 in blimp top half right end, which is also type of push and pull up down,
Staff can enter blimp re-type by the second metallic door 12-4, adjust sound transducer height.In the second gold medal
Belonging to and sound control glass 12-3 is installed on the left of door 12-4, experimenter can observe Internal Experiment situation through sound control glass, and
Sound control glass also has good soundproof effect.Sound insulation cover inner surface is adsorbed with sound-absorbing material and acoustic material.Blimp is built-in
There is soundproof plate to keep apart tire device and power transmission toothed belt drive.
The blimp 12-1 inner surface of part only adsorbs acoustic material such as rubber, soundproof plate lower part on the soundproof plate 3
The adsorbable acoustic material of sound insulation cover inner surface and sound-absorbing material two kinds such as sponge, foam, fiber etc. being divided to.First metallic door 12-2
Inner surface attachment sound-absorbing material and acoustic material, the second metallic door 12-4 inner surface only adhere to acoustic material.
In present embodiment, the variable-frequency motor device includes frequency converter 18, motor base 17 and shaft coupling 16, variable-frequency electric
Machine 2 is connect with frequency converter 18 by conducting wire, and variable-frequency motor is fixed on motor base 17, and motor base 17 is fixed on by nut
On frequency converter 18.Variable-frequency motor output shaft is connect by shaft coupling 16 with the input shaft 15 of drive roll.
The work of variable-frequency motor 2 drives driving shaft rotation, so that drive roll 21 be driven to rotate.By adjusting frequency converter
18 frequency changes the output torque of variable-frequency motor 8, to change 21 revolving speed of drive roll.Drive roll 21 in the design, from
The size of dynamic roller 9 is identical, and the roller outer layer number of teeth is also identical.The roller outer layer number of teeth takes the 40 (numbers of teeth in the present embodiment
The bearing capacity of more doffer is stronger, but is driven unstable, and noise is big), it requires in roller bearing capacity in present embodiment
High as far as possible, device running noises are small as far as possible, and then passing through calculating analysis and selecting the drive roll driven roller outer layer number of teeth is 40.
Drive roll and driven roller diameter are both designed as 1m, we can test max. speed, load according to diameter of cylinder in this way
The torque capacity of motor shaft is added to test the selection of required variable-frequency motor.
In formula,
Tz--- the torque that load is added on motor shaft；
The revolving speed of n --- electric machine main shaft；
Pz--- the power of motor；
Described in present embodiment it is test bed can in the measurement on identical road surface or different road surface, one, in Xiang Tonglu
Face in the constant situation of tire rotational speed, changes tyre load, tire road rumble；Two, on identical road surface, tyre load is constant, wheel
Tire revolving speed changes lower tire road rumble；Three, on different road surfaces, identical tire rotational speed, in the case that load is certain, tire road surface
Noise.
Using steel wire toothed belt come simulated roadway in present embodiment, coefficient of road adhesion takes 0.1,0.2,0.3 respectively,
0.4,0.5,0.6, steel wire tooth form bandwidth takes 60cm, and hydraulic loading device control tyre load is to simulate a quarter vehicle
Weight.The maximum car weight of simulation is 1.2 tons.
When automobile tire road rumble testing stand works, tire drag is no more than 1800N, is selected according to highest resistance
Motor.
Three rollers make steel wire toothed belt be constantly in horizontality when working, and slider cylinder 11 controls driven wheel or so fortune
Dynamic, when experiment, slider cylinder is maintained at the tensile force of steel wire toothed belt between 50N-100N.It is installed on driven shaft 23 strong
Sensor 22 can measure tensile force size.
The tire rotates in steel wire toothed belt 8, and steel wire toothed belt is at the uniform velocity to stop when due to experiment, herein to reality
It tests middle steel wire toothed belt and carries out force analysis, show that tire is equal to what drive roll was subject to the rolling resistance size of simulated roadway
The force of periphery.
Tz=1800 × 0.5=900N.m (2)
On testing stand, our max. speed to be achieved are 80km/h；
The steel wire toothed belt transmission efficiency is 0.98, and the darg time is 3h, and is not continuous operation, according to work
Condition coefficient table, the application factor selected are 1.4, so it is 60kw that design power, which is finally calculated,.So this patent selection
Motor rated power is 60kw.
2 voltage of variable-frequency motor is designed by 50hz, and nominal torque is also given in this range.This patent selection
Motor torque capacity 1000N.m, rated power 60kw, tire maximum (top) speed is 80km/h.
Frequency converter 18 controls 2 frequency of variable-frequency motor to be changed in 0-50hz, and motor output torque increases with frequency and increased, electricity
Machine output torque reaches maximum when frequency is 50hz, and power of motor has also reached rated power.When frequency converter change frequency is big
While small, output voltage will also change, and avoid motor from being in overvoltage, motor is prevented to be burned.Within this range, Ke Yijin
Tire road surface noise testing under row 0-80km/h speed road conditions.
The testing stand is required to measure tyre noise under different speeds in present embodiment, the calculating of speed can utilize number
Formula is learned to calculate.
The formula of motor speed and frequency:
N=60f/p (5)
Wherein:
F --- supply frequency (hertz), the rated frequency of electric moter voltage are 50hz；
The number of pole-pairs (being provided on variable-frequency motor nameplate) of p --- electric machine rotary magnetic field；
The revolving speed of drive roll:
V=2n π r (6)
Joint type (3), formula (5) are available
Following equation can be obtained by mathematical computations
Abbreviation obtains
pz=UI × 0.85 (10)
In formula,
μ is the attachment coefficient of simulated roadway, FtFor tyre load, U is that frequency converter shows that voltage, I are frequency converter display electricity
Stream.By controlling the voltage and current of frequency converter, frequency converter voltage frequency size may be implemented present embodiment regulation speed and change
The purpose for becoming speed, to complete the measurement of automobile tire road rumble.
The steel wire toothed belt transmission efficiency selected in present embodiment is high, can ignore its transmitting loss, so actively
Drum rotation speed can approximation regard steel wire toothed belt revolving speed as.The rotation of steel wire toothed belt drives tyre rotation, does not consider between the two
Skidding, the revolving speed of steel wire toothed belt can approximation regard tire rotational speed as.
Claims (7)
1. automobile tire road rumble is test bed, including will be divide into upper part and lower part by soundproof plate (3) in sound insulation closure assembly,
Upper part includes sound transducer device, tire device and hydraulic loading device, and lower part point includes power transmission toothed belt drive, variable-frequency electric
Machine device and slider cylinder device；
Opening is provided on soundproof plate (3), tire device is located at the surface of opening, force snesor is arranged on the tire device
(22) and speed probe (19), sound transducer device is fixed on the front on soundproof plate (3) and being located at tire device, hydraulic
Loading device is used to control the loading force of tire device, and variable-frequency motor device is connect with power transmission toothed belt drive；The variable-frequency motor
The output shaft of device provides torque by active axis connection in shaft coupling and power transmission toothed belt drive for power transmission toothed belt drive；
It is characterized in that the power transmission toothed belt drive includes steel wire toothed belt (8), active support section, support section and driven branch
Support part point, the steel wire toothed belt (8) and active support section, support section and driven support section cooperate, and form simulation road
Face, steel wire toothed belt (8) rotation drive tire device rotation, acquire sound transducer device, force snesor (22) and turn
The information of fast sensor (19) obtains the noise on automobile tire road surface, tire loading force and tire rotational speed respectively；
The sound insulation closure assembly includes blimp (12-1), the first metallic door (12-2), sound control glass (12-3) and the second metal
Door (12-4), the blimp (12-1) is cuboid, and is divided into the top part and the bottom part point by soundproof plate (3), is pacified on front side of lower half portion
It fills the first metallic door (12-2), the second metallic door (12-4) is installed on the right side of top half, sound insulation is installed on the left of the second metallic door
Glass (12-3), first metallic door (12-2), the second metallic door (12-4) are type of push and pull up down；
The active support section includes driving shaft (20), drive roll (21) and active shaft supporting frame (1), the driving shaft
(20) it is supported by active shaft supporting frame (1), driving shaft (20) is connect with drive roll (21) by shaft coupling；
Support section includes support shaft (13), support roller (14) and support frame (4), and support shaft (13) is supported by support frame (4),
Support shaft (13) is connect by bearing with support roller (14)；
Driven support section includes driven shaft (23), driven roller (9) and driven shaft supporting frame (10), and driven shaft (23) is by driven
Shaft supporting frame (10) support, driven shaft (23) are connect with driven roller (9) by shaft coupling；The driven shaft supporting frame (10) is solid
It is scheduled on the first support plate (24), and the first support plate (24) is mounted on the sliding rail of slider cylinder (11), the hydraulic loaded
Device (6) drives the second support plate (25) to move up and down；
Drive roll (21) outer layer, support roller (14) outer layer and driven roller (9) outer surface are dentation, and and steel wire
Toothed belt (8) internal layer surface dentation matches, and drive roll (21) is identical as the diameter of driven roller (9), the driving shaft
(20) diameter matches with drive roll (21) shaft hole diameter, and axle center is collinear, support shaft (13) diameter and support roller (14) axis
Bore dia matching, axle center is collinear；
The sound transducer device includes nut (5-1), support rod (5-2), sound transducer (5-3), cross bar (5-4), determines
Position folder (5-5) and pedestal (5-6), the pedestal (5-6) are cube, and support rod (5-2) is cylindrical body, are equipped with above cylindrical body
Screw thread has a nut (5-1) on support rod, and nut and screw thread match；The one end cross bar (5-4) is fixed by welding in nut (5-
1) on, nut, which moves up and down, adjusts cross bar (5-4) height, and cross bar one end is fixed with locating clip (5-5), the lower end locating clip (5-5)
Through hole is fixed on cross bar (5-4), and locating clip (5-5) upper end shape is Ω shape, sound transducer (5-3) axis and tire axis
Line is conllinear, and the pedestal (5-6) is fixed on soundproof plate (3).
2. automobile tire road rumble according to claim 1 is test bed, which is characterized in that the driven shaft (23)
Upper installation force sensor a, is used for the tensile force of measuring steel wire toothed belt (8), and the force snesor a is connect with computer.
3. automobile tire road rumble according to claim 1 is test bed, which is characterized in that the steel wire toothed belt
(8) internal layer be the polyurethane containing steel wire made of articulamentum, internal layer inner surface be big dentation, and with drive roll (21),
The outer surface dentation of support roller (14) and driven roller (9) is meshed, and steel wire toothed belt (8) outer layer is composite material
Layer, outer layer inner surface is small dentation, and is matched with inner layer outer surface, and outer layer outer surface is simulated roadway.
4. automobile tire road rumble according to claim 1 is test bed, which is characterized in that tire device includes wheel
Tire (7-2), wheel hub (7-1), force snesor (22) and speed probe (19), tire (7-2) are mounted on wheel hub (7-1), wheel
Force snesor (22) are housed on hub (7-1), tire (7-2) is driven by tire axis (7-3) and rotated, and installation turns on tire axis (7-3)
Fast sensor (19)；Tire axis (7-3) is mounted on the second support plate (25) by bearing, the force snesor on wheel hub (7-1)
(22) tire is measured to the loading force of simulated roadway.
5. automobile tire road rumble according to claim 4 is test bed, which is characterized in that the force snesor
(22), speed probe (19) and sound transducer (5-3) are connect with computer respectively, control hydraulic loaded by computer
Loading force, tyre noise and tire rotational speed of the device (6) to tire.
6. automobile tire road rumble according to claim 1 is test bed, which is characterized in that the variable-frequency motor dress
It sets including frequency converter (18), motor base (17) and shaft coupling (16), variable-frequency motor (2) is connect with frequency converter (18), variable-frequency electric
Machine (2) is fixed on motor base (17), and motor base (17) is fixed on frequency converter (18), the variable-frequency motor (2) it is defeated
Shaft passes through the input shaft (15) of shaft coupling (16) and drive roll.
7. automobile tire road rumble according to claim 6 is test bed, which is characterized in that the upper part every
Sound cover (12-1) inner surface setting absorption acoustic material, under soundproof plate (3) the sound insulation cover inner surface setting acoustic material of part and
Sound-absorbing material；First metallic door (12-2) inner surface adheres to sound-absorbing material and acoustic material, the second metallic door (12-4) inner surface
Adhere to acoustic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510760664.2A CN105277275B (en) | 2015-11-10 | 2015-11-10 | Automobile tire road rumble is test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510760664.2A CN105277275B (en) | 2015-11-10 | 2015-11-10 | Automobile tire road rumble is test bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105277275A CN105277275A (en) | 2016-01-27 |
| CN105277275B true CN105277275B (en) | 2019-03-19 |
Family
ID=55146687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510760664.2A Expired - Fee Related CN105277275B (en) | 2015-11-10 | 2015-11-10 | Automobile tire road rumble is test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105277275B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404163B (en) * | 2016-08-25 | 2019-04-19 | 辽宁科技学院 | One kind is for testing gearbox gear meshing noise testing stand |
| CN107290046B (en) * | 2017-06-22 | 2019-12-31 | 长安大学 | Indoor test device and test method for noise in vehicle |
| CN107340048A (en) * | 2017-06-24 | 2017-11-10 | 中国矿业大学 | A kind of disk brake frictional noise analogue means and test system |
| CN107436191B (en) * | 2017-06-30 | 2022-06-14 | 吉林大学 | Method for testing quality of pedestrian warning sound |
| CN107607468A (en) * | 2017-09-07 | 2018-01-19 | 清华大学苏州汽车研究院（相城） | A kind of material friction noise-measuring system and method for testing |
| JP7011453B2 (en) * | 2017-12-07 | 2022-01-26 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Tire noise test equipment and method |
| CN108692847B (en) * | 2018-05-18 | 2023-12-01 | 吉林大学 | Tire rolling resistance testing device and measuring method thereof |
| CN108776026A (en) * | 2018-06-14 | 2018-11-09 | 华南理工大学 | A kind of teaching test stand for indoor automobile vibration and noise testing |
| CN108956165A (en) * | 2018-08-21 | 2018-12-07 | 杭叉集团股份有限公司 | A kind of tire rolling resistance coefficient determination experimental rig |
| CN108827661A (en) * | 2018-09-07 | 2018-11-16 | 攀枝花学院 | Wheel detection device |
| CN109916327B (en) * | 2019-04-08 | 2021-10-29 | 浙江江兴汽车检测设备有限公司 | Automobile tire pattern depth tester and using method thereof |
| CN113567156A (en) * | 2021-07-22 | 2021-10-29 | 青岛双星轮胎工业有限公司 | Device and method for testing tire noise by using semi-anechoic chamber flat steel belt testing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865778A (en) * | 2010-06-10 | 2010-10-20 | 重庆大学 | Torsional vibration excitation device and test bed of vehicle drive system |
| CN203705046U (en) * | 2013-12-25 | 2014-07-09 | 长安大学 | Near field tyre and road noise tester |
| CN104142250A (en) * | 2014-07-17 | 2014-11-12 | 洛阳理工学院 | Vehicle tire noise testing system |
| CN104792548A (en) * | 2015-04-30 | 2015-07-22 | 陕西理工学院 | Three-drum detection device used for simulating straight pavements with different attachment coefficients |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN205209630U (en) * | 2015-11-10 | 2016-05-04 | 吉林大学 | Automobile tire road surface noise test test bench |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100316604B1 (en) * | 1999-11-19 | 2001-12-12 | 성재갑 | Use of a nonimmunosuppressive cyclosporin A derivative for hair growth |
| CN104266749B (en) * | 2014-10-24 | 2017-08-11 | 重庆市科学技术研究院 | A kind of alternator for vehicle NVH off-line test devices and methods therefors |
-
2015
- 2015-11-10 CN CN201510760664.2A patent/CN105277275B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865778A (en) * | 2010-06-10 | 2010-10-20 | 重庆大学 | Torsional vibration excitation device and test bed of vehicle drive system |
| CN203705046U (en) * | 2013-12-25 | 2014-07-09 | 长安大学 | Near field tyre and road noise tester |
| CN104142250A (en) * | 2014-07-17 | 2014-11-12 | 洛阳理工学院 | Vehicle tire noise testing system |
| CN104792548A (en) * | 2015-04-30 | 2015-07-22 | 陕西理工学院 | Three-drum detection device used for simulating straight pavements with different attachment coefficients |
| CN105181113A (en) * | 2015-08-19 | 2015-12-23 | 交通运输部科学研究院 | Portable vehicle-mounted site test device for road and tyre noise |
| CN205209630U (en) * | 2015-11-10 | 2016-05-04 | 吉林大学 | Automobile tire road surface noise test test bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105277275A (en) | 2016-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105277275B (en) | Automobile tire road rumble is test bed | |
| CN101762393B (en) | Balance weight vehicle tire road moving characteristic simulation tester | |
| CN1164917C (en) | Method for predicting comfort efficiency of vehicle equipped with system linking it to ground | |
| CN109612929B (en) | Test device and method for researching friction characteristics between tire and actual road surface | |
| CN104792548A (en) | Three-drum detection device used for simulating straight pavements with different attachment coefficients | |
| CN104142250B (en) | Vehicle tire noise testing system | |
| CN205656013U (en) | A test bench that is used for characteristic test of motor vehicle tire mechanics | |
| CN108132155A (en) | A kind of 4 wheel driven Chassis dynamometer detecting system for being applicable in different wheelbases | |
| CN102004039A (en) | Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system | |
| CN106769120B (en) | Railway vehicle elastic wheel loading test bed | |
| CN107655825A (en) | A kind of rubber for tire high speed ice face frictional behavior test device | |
| US20150040679A1 (en) | Active resistance dynamometer for wheel testing | |
| CN108613920A (en) | A kind of simulation test device and method for tire and pavement friction process study | |
| CN205209630U (en) | Automobile tire road surface noise test test bench | |
| CN207540795U (en) | A kind of 4 wheel driven Chassis dynamometer detection device for being applicable in different wheelbases | |
| CN1831506A (en) | Trolley for testing planetary detection vehicle wheel moving performance | |
| CN204556273U (en) | Simulate the three rotary drum pick-up units on the straight road surface of different attachment coefficient | |
| CN102323066A (en) | Crawler chassis test stand | |
| CN204043930U (en) | A kind of vehicle tire noise test macro | |
| RU182915U1 (en) | The stand for the study of the twin wheels of vehicles | |
| RU2382346C1 (en) | Method of determination of stiffness and nonelastic resistance of automobile tyre and test bench for automobile tyres tests | |
| CN201434818Y (en) | Road surface friction coefficient testing carriage | |
| CN201575923U (en) | Characteristic simulation test device for automobile double tire with tracks running on road | |
| CN201575922U (en) | On-road driving characteristics simulation test plant for vertical shaft type car tire | |
| CN109342197A (en) | Accelerated loading device and method for ground surface material laboratory test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 Termination date: 20201110 |