CN106840710A - Tyre noise test device and tyre noise data collecting system - Google Patents
Tyre noise test device and tyre noise data collecting system Download PDFInfo
- Publication number
- CN106840710A CN106840710A CN201710063009.0A CN201710063009A CN106840710A CN 106840710 A CN106840710 A CN 106840710A CN 201710063009 A CN201710063009 A CN 201710063009A CN 106840710 A CN106840710 A CN 106840710A
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- China
- Prior art keywords
- car body
- proof housing
- sound proof
- noise
- tire
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Classifications
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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
- G01M17/02—Tyres
- G01M17/025—Tyres using infrasonic, sonic or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The present invention provides a kind of tyre noise test device, the technical field for being related to tyre noise to test, including car body, tractive unit, load, sound proof housing and noise detection device；Tractive unit is connected with car body, and load is arranged on car body；Car body is provided with the installation position for installing tire, and sound proof housing is connected on car body and covers and sets installation position, the tire on installation position is contained in sound proof housing；The noise detection device detected to the noise of tire is installed in sound proof housing.Rotary drum method and coastdown testing cost technical problem high are solved, the ambient noise that sound proof housing can be during isolation test, test data is more accurate, improves certainty of measurement.The present invention also provides a kind of tyre noise data collecting system, including data collecting system, microphone, wheel speed sensors, the temperature measuring set being connected with tyre noise test device respectively.The test condition consistency problem in test process is solved, the precision of tyre noise test and the validity of data is improved.
Description
Technical field
The present invention relates to the technical field of tire noise test, more particularly, to a kind of tire noise test device and tire
Noise data acquisition system.
Background technology
Environmental protection consciousness with people gradually strengthens, and automobile noise problem is increasingly paid close attention to by people, people
The car noise often said is mainly derived from engine noise, exhaust noise, fan noise, transmission system noise, brakes and makes an uproar
Sound, tire noise and wind are made an uproar, wherein tire noise refer to vehicle when running at high speed, the friction between tire and road surface is produced
Raw, road conditions are poorer, and tire noise is bigger, therefore tire noise is the main source of automobile noise under high-speed cruising operating mode.It is right
This, people study a kind of vehicle tire noise test device, with to different tires under different load and different speed,
Tire and road surface noise produced when acting on are tested.
Currently used Noise Testing mainly has rotary drum method and coastdown.Rotary drum Phacolysin is lived and is applied to tire
The evaluation of decorative pattern exciting sound, requires for drum equipment to be placed on semi-anechoic room or whole elimination room during measurement, and drum surface can be with
Various road surfaces are simulated, tire is rolled according to desired speed on rotary drum, you can recording noise level or frequency spectrum；Surveyed using rotary drum method
Need to carry out indoors during amount, the influence of climate conditions and environment condition is small, and time of measuring is short, the repeatability of measurement result
It is good, the good comparability of measurement result；But, rotary drum method needs expensive drum equipment and half/whole elimination room, causes measurement cost
Height, and there is stronger directive property in tyre noise, and the near field value surveyed can not represent reality of the outer far-field noise of car to pedestrian
Influence, in addition, rotary drum has certain curvature, tire is different from the bell shape that its actual road surface is formed with rotary drum, loudspeaker
Different when voice sound enlarge-effect is with actual road traveling, the noise of rotary drum can also influence the result of measurement.
Coastdown refers to that it is controlled that test certain speed is travelled by installing microphone at trackside certain distance and height
The noise that vehicle is sent；The result that coastdown is tested can be good at characterizing tire/road rumble to outside far-field radiation
Actual conditions, certainty of measurement is higher；But, the high cost of measurement is, it is necessary to meet the test segment of certain standard, and test
Time-consuming, and big by external action, especially weather influence is big, it is necessary to away from traffic zone, measured equipment during measurement
It is limited, it is impossible to which that single tire is tested.
The content of the invention
It is an object of the invention to provide a kind of tyre noise test device, to solve present in prior art, use
Rotary drum method measurement cost is high, and by site influence, measurement data is inaccurate；Using the measuring apparatus high cost of coastdown, road is tested
Duan Yaoqiu is high, big by external action, the limited technical problem of test equipment.
The present invention also provides a kind of tyre noise data collecting system, to solve in the prior art, to carry out tyre noise survey
The test data of examination is easily lost, and test result is by Environmental Noise Influence is big, the unmanageable technical problem of accuracy.
A kind of tyre noise test device that the present invention is provided, including the inspection of car body, tractive unit, load, sound proof housing and noise
Survey device；
The tractive unit is connected with car body, and the load is arranged on car body；The car body is provided with the installation for installing tire
Position, the sound proof housing is connected on car body and covers and sets installation position, the tire on installation position is contained in sound proof housing；It is described to disappear
The noise detection device detected to the noise of tire is installed in acoustic shell.
Further, the load includes connecting rod and multiple balancing weights；
One end of the connecting rod is connected on car body, and multiple balancing weights are selectable to be socketed in connecting rod, with
The quality of load of the regulation on car body.
Further, also including slide mechanism；
The slide mechanism includes leading screw, handwheel, the first sliding block and slide bar；
One end of the leading screw is connected on car body, and is arranged on the side of car body, the other end connection hand of the leading screw
Wheel, first sliding block is connected on leading screw, and is connected with the sound proof housing of car body；The sound proof housing is provided with the second sliding block, institute
The opposite side that slide bar is connected to car body is stated, second sliding block is connected on slide bar；
When the handwheel rotates, drive the first sliding block vertically moving, first sliding block drives the sound proof housing to make the
Two sliding blocks do vertical direction and move along slide bar.
Further, the noise detection device includes support frame and detector；
The detector is connected to one end of support frame as described above, and the other end of support frame as described above is connected in sound proof housing.
Further, also including the elevating mechanism being connected on car body, the elevating mechanism includes leading screw, support base and snail
Worm and gear；
One end of the leading screw is connected on car body, the other end connecting support seat of the leading screw, and the worm and gear connects
It is connected on leading screw, and the distance between car body and ground can be adjusted.
Further, also including elastic component；
The elastic component is connected on car body, and the tire is connected on car body by vehicle bridge, the middle part of the elastic component
It is connected in vehicle bridge by suspender member, the two ends of the elastic component are connected on car body by fixed seat respectively.
Further, support frame as described above and detector are corresponding multiple.
Further, the tractive unit is connected with support, and the support is supported to car body.
Further, it is provided with sound-absorbing material in the sound proof housing.
The present invention also provides a kind of tyre noise data collecting system, including data collecting system, microphone, wheel speed sensing
Device, temperature measuring set and described tyre noise test device, the data collecting system, microphone, wheel speed sensors, temperature
Measuring instrument is connected with tyre noise test device respectively.
The tyre noise test device that the present invention is provided, the tractive unit is connected to below car body, and the tractive unit leads
Draw car body forward movement；Load is connected above the car body, the load can be dismantled as needed at any time, to adjust
The weight of car body；Two installation positions are provided with the bottom of car body, tire, the tire pair are respectively mounted in two installation positions
Car body is supported；The sound proof housing is connected to the both sides of car body, and covers the position of installation position, and two tyre gaiters are being disappeared
In acoustic shell；Noise detection device is installed in the sound proof housing, so that the noise detection device is examined to the noise of tire
Survey.
The present invention also provides the number of a kind of tyre noise data collecting system, above-mentioned tyre noise test device and the system
Connected according to acquisition system, when being tested, the data collecting system is carried out to the data measured by tyre noise test device
Storage, is then stored in the file specified, and is easy to staff's analysis measurement data, improves the operating efficiency of test.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is one side structural representation provided in an embodiment of the present invention；
Fig. 2 is another side structural representation provided in an embodiment of the present invention；
Fig. 3 is the A portions enlarged drawing in Fig. 2；
Fig. 4 is local fractionation schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the structural representation of tractive unit provided in an embodiment of the present invention；
Fig. 6 is structural representation when sound proof housing provided in an embodiment of the present invention is started；
Fig. 7 is the schematic diagram that car body provided in an embodiment of the present invention does not install sound proof housing one side；
Fig. 8 is the B portions enlarged drawing in Fig. 7；
Fig. 9 is the structural representation of noise detection device provided in an embodiment of the present invention；
Figure 10 is the schematic diagram that car body provided in an embodiment of the present invention does not install sound proof housing another side；
Figure 11 is the structural representation of elevating mechanism provided in an embodiment of the present invention；
Figure 12 is the structural representation of elastic component provided in an embodiment of the present invention.
Icon：11- car bodies；12- tractive units；13- is loaded；14- sound proof housings；15- noise detection devices；16- is slided
Motivation structure；17- elevating mechanisms；18- elastic components；121- supports；131- connecting rods；132- balancing weights；141- second is slided
Block；151- support frames；152- detectors；161- leading screws；162- handwheels；The sliding blocks of 163- first；164- slide bars；171-
Leading screw；172- support bases；173- worm and gears；181- suspender members；182- fixed seats.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is one side structural representation provided in an embodiment of the present invention；Fig. 2 is opposite side provided in an embodiment of the present invention
Face structural representation；Fig. 3 is the A portions enlarged drawing in Fig. 2；Fig. 4 is local fractionation schematic diagram provided in an embodiment of the present invention；Fig. 5
It is the structural representation of tractive unit provided in an embodiment of the present invention；Fig. 6 is when sound proof housing provided in an embodiment of the present invention is started
Structural representation；Fig. 7 is the schematic diagram that car body provided in an embodiment of the present invention does not install sound proof housing one side；Fig. 8 is in Fig. 7
B portions enlarged drawing；Fig. 9 is the structural representation of noise detection device provided in an embodiment of the present invention；Figure 10 is the embodiment of the present invention
The car body of offer does not install the schematic diagram of sound proof housing another side；Figure 11 is the structure of elevating mechanism provided in an embodiment of the present invention
Schematic diagram；Figure 12 is the structural representation of elastic component provided in an embodiment of the present invention.
As shown in figs. 1 to 6, a kind of tyre noise test device that the present invention is provided, including it is car body 11, tractive unit 12, negative
Carry 13, sound proof housing 14 and noise detection device 15；
The tractive unit 12 is connected with car body 11, and the load 13 is arranged on car body 11；The car body 11 is provided with installation
The installation position of tire, the sound proof housing 14 is connected on car body 11 and covers and sets installation position, is contained in the tire on installation position
In sound proof housing 14；The noise detection device 15 detected to the noise of tire is installed in the sound proof housing 14.
The car body 11 includes base plate, the side plate of both sides, top board and tire, and the base plate, the side plate of both sides and top board connect
A chamber for closing is connected into, the tire is connected to the rear positions both sides of base plate, chamber rear positions is supported, two
Connected by vehicle bridge between individual tire, the vehicle bridge is connected to the lower position of base plate；The tractive unit 12 is draw bar, is such as schemed
Shown in 5, right section of the draw bar is a connecting rod, and left section of the draw bar has three square poles, three square poles
Right-hand member be connected with the left end of connecting rod, three left ends of square pole are distributed in fan-shaped, and three square poles are connected to car body 11
Base plate on, and be contained in the forward position of chamber so that the front portion of chamber is closed to three square poles, appearance
More preferably, when pulling right section of connecting rod to the right, left section of three square poles are driven to pull car body 11 to move right；The load 13
The substrate of car body 11 can be connected to by the way of being flexibly connected, it would however also be possible to employ the mode being fixedly connected is connected to car body
11 substrates, are adjusted with the weight at any time to car body 11；The rear positions both sides of the base plate of the car body 11 are respectively provided with
Two installation positions, two tires are separately mounted to be fixed in installation position；The sound proof housing 14 is connected to the two of car body 11
On individual side plate, and sound proof housing is located at installation position, two tires is respectively contained in sound proof housing 14, the sound proof housing 14
It is a kind of cover body of sound insulation and noise reducing noise reduction, by the closed ducted body for constituting of multiple side plates and top board, tire is arranged on sound proof housing
In 14, the sound insulation and noise reducing effect of tire is obvious；As shown in fig. 6, being connected using hinge between the sound proof housing 14 and the side plate of car body 11
Connect, the side plate and top board of the sound proof housing 14 is started upwards, be conveniently replaceable tire；It is fixedly connected in the sound proof housing 14
There is noise detection device 15, the noise detection device 15 is detected to the noise of tire.
Further, the load 13 includes connecting rod 131 and multiple balancing weights 132；
One end of the connecting rod 131 is connected on car body 11, and multiple balancing weights 132 are selectable to be socketed in connection
On bar 131, to adjust the quality of the load 13 on car body 11.
As shown in fig. 7, the connecting rod 131 is threaded rod, the lower end of the threaded rod is fixedly connected on base plate, described
Screwed hole is formed on balancing weight 132, the threaded rod passes through screwed hole, balancing weight 132 is connected on threaded rod, then uses
Nut is tightened to the upper end of threaded rod, balancing weight is securely attached on threaded rod；The balancing weight 132 can be with
It is set to rectangular slab, it is also possible to be provided in round plate；The balancing weight 132 can be one, or multiple, described to match somebody with somebody
When the quantity of pouring weight 132 is one, the weight of balancing weight 132 is fixed, and when on car body 11, increases the weight on car body 11
Amount is fixed, and when the balancing weight 132 is for multiple, can at any time increase or reduce the quantity of balancing weight 132, is easy at any time to car
The weight of body 11 is adjusted.
Further, also including slide mechanism 16；
The slide mechanism 16 includes leading screw 161, handwheel 162, the first sliding block 163 and slide bar 164；
One end of the leading screw 161 is connected on car body 11, and is arranged on the side of car body 11, the leading screw 161 it is another
One end connects handwheel 162, and first sliding block 163 is connected on leading screw 161, and is connected with the sound proof housing 14 of car body 11；It is described
Sound proof housing 14 is provided with the second sliding block 141, and the slide bar 164 is connected to the opposite side of car body 11, and second sliding block 141 is connected
On slide bar 164；
When the handwheel 162 rotates, drive the first sliding block 163 vertically moving, first sliding block 163 drives and disappears
Acoustic shell 14 makes the second sliding block 141 do vertical direction along slide bar 164 to move.
As shown in figure 8, the lower end of the leading screw 161 is fixedly connected on the base plate of car body 11, and it is arranged on the side of car body 11
The medial surface of plate, the upper end connection handwheel 162 of the leading screw 161, the handwheel 162 can be rotated, and first sliding block 163 is slided
It is dynamic to be connected on leading screw 161, when the handwheel 162 rotates, the first sliding block 163 can be driven to move up and down, first sliding block
163 lateral surface is fixedly connected with the medial surface of sound proof housing 14, when first sliding block 163 moves up and down, drives sound proof housing 14
Move up and down；The slide bar 164 is two, and two slide bars 164 are fixedly connected on the lateral surface of the side plate of car body 11, and are arranged on silk
The both sides of thick stick 161, the sound proof housing 14 is provided with four the second sliding blocks 141 being arranged in approximately the same plane, makes each slide bar
164 two ends connect two the second sliding blocks 141 respectively, and the sound proof housing 14 is under the drive of the first sliding block 163 along vertical side
During to motion, drive second sliding block 141 that the motion of vertical direction is done along slide bar 164；Because the present apparatus is used to install not
Level tire, road wheel tire noise testing of going forward side by side, the tire of different height is arranged on when in sound proof housing 14, sound proof housing 14 and ground
The distance between face will be different, and, it is necessary to the distance between sound proof housing 14 and ground are protected when testing tire noise
The constant distance of regulation is held, in order that the tire of different height is arranged in sound proof housing 14, is made between sound proof housing 14 and ground
Distance keep it is constant, when testing tire noise, can be by slide mechanism 16 between sound proof housing 14 and ground
Distance is adjusted.
Further, the noise detection device 15 includes support frame 151 and detector 152；
The detector 152 is connected to one end of support frame as described above 151, and the other end of support frame as described above 151 is connected to and disappears
In acoustic shell 14.
As shown in figure 9, the left end of support frame as described above 151 is connected to the medial surface of sound proof housing 14, it is also possible to be connected to tire
Rotating shaft on, the right-hand member connecting detection device 152 of support frame as described above 151, the detector 152 alignment tire set, the tire
In sound proof housing 14 during operation, detector 152 is tested the noise produced by tire.Additionally, user can be according to difference
Test request, the position between detector 152 and tire is adjusted by support frame 151, to adapt to the test of different kinds of tyre
It is required that.
Further, also including the elevating mechanism 17 being connected on car body 11, the elevating mechanism 17 include leading screw 171,
Support base 172 and worm and gear 173；
One end of the leading screw 171 is connected on car body 11, the other end connecting support seat 172 of the leading screw 171, described
Worm and gear 173 is connected on leading screw 171, and the distance between car body 11 and ground can be adjusted.
As shown in Figure 10, the elevating mechanism 17 is corresponding two, is connected to the rear portion two of the base plate of car body 11
End position, the rear portion to the base plate of car body 11 is supported, it is also possible to elevating mechanism 17 is set into four, car body is connected to
Four corner locations of 11 base plates, make the base plate of car body 11 more stablize；As shown in figure 11, the lower end connection branch of the leading screw 171
Support seat 172, the support base 172 is cylindric, the diameter with diameter greater than leading screw 171 of the support base 172, so that the branch
The bottom for supportting 172 pairs of leading screws 171 of seat is supported, and the upper end of the leading screw 171 is connected on car body 11, can be in car body 11
Moved up and down in connecting hole, the worm and gear 173 is movably connected on leading screw 171, when rotating the worm and gear 173, energy
Leading screw 171 is enough driven to move up and down, the inner opposite end face connection sound proof housing 14 of worm and gear 173 on the leading screw 171, drive disappears
Acoustic shell 14 moves up and down, and makes the increase of the distance between car body 11 and ground or reduces, so as to the base plate of car body 11 and ground it
Between distance be adjusted, make that tire is contained in sound proof housing 14 or tire is away from sound proof housing 14, be conveniently replaceable tire.Need
During re-type, turn clockwise worm and gear 173, makes the extended length of leading screw 171, and the distance between car body 11 and ground add
It is long, at this moment, the bottom surface of car body 11 is supported by support base 172, it is conveniently replaceable tire；Tire changing is finished, rotate counterclockwise worm gear
Worm screw 173, makes the contraction in length of leading screw 171, and the distance between car body 11 and ground shorten, at this moment, by two Tire support cars
The bottom surface of body 11, then carries out tyre noise test.When being changed to tire, can simultaneously by two elevating mechanisms 17 dozens
Open, two support bases 172 is supported the bottom of whole car body 11, then tire is changed, improve re-type
Stability.
Further, also including elastic component 18；
The elastic component 18 is connected on car body 11, and the tire is connected on car body 11 by vehicle bridge, the elastic component
18 middle part is connected in vehicle bridge by suspender member 181, and the two ends of the elastic component 18 are connected to car by fixed seat 182 respectively
On body 11.
As shown in Figure 10, Figure 12, the elastic component 18 is leaf spring, or other elastomeric elements, the car
Two tires of the base plate of body 11 connection are connected using vehicle bridge, and the two ends of the leaf spring are connected to by fixed seat 182 respectively
The bottom of car body 11, and the medium position of leaf spring is fixedly connected in vehicle bridge using suspender member 181, it would however also be possible to employ its
The mode of his latch segment, the medium position of leaf spring is fixedly connected in vehicle bridge, and the leaf spring uses two, with
It is fixed between two ends and the base plate of car body 11 to vehicle bridge；The leaf spring increased the mechanical damping of car body 11, moreover it is possible to
Enough play a part of to reduce car body vibrations, so as to reduce the influence to tyre noise testing.
Further, support frame as described above 151 and detector 152 are corresponding multiple.
As shown in figure 9, the noise detection device 15 could be arranged to three, middle noise detection device 15 is along perpendicular
Rectilinear direction is set, and noise detection device 15 and the angle of the noise detection device 15 of centre at two ends are 45 degree, so that two ends
The perpendicular setting of noise detection device 15, so setting can uniformly gather the noise of tire from many aspects, accurately enter
Row test.
Further, the tractive unit 12 is connected with support 121, and the support 121 is supported to car body 11.
As shown in figure 1, right section of shown tractive unit 12 is connecting rod, one support is set in the left end bottom of connecting rod
121, during being detected to tire, the bottom of draw bar is supported using support 121 at any time, make right section of connecting rod with
Left section of three square poles on same horizontal plane, are easy to repair or re-type car body 11 all the time.
Further, it is provided with sound-absorbing material in the sound proof housing 14.
As shown in Fig. 2 described sound-absorbing material uses peak sponge, it would however also be possible to employ other sound-absorbing materials, the ripple
Peak sponge be it is a kind of be that raw material makes by polyurethane, for concavo-convex, the crest shape of peak sponge increased its surface face on surface
Product, is conducive to preferably absorbing sound, according to the scene for being used, it can be provided different colors, in addition, the ripple
Fire retardant is provided with peak sponge, therefore also there is fire-retardant effect, it is more safe when using.
A kind of tyre noise test device that the present invention is provided, the tractive unit draws to car body movement, described
Installation load on car body, the weight of the load can be easy to test tire not at any time according to being adjusted the need for test
With noise when being worked under load；The outside of the tire is covered with sound proof housing, and the sound proof housing can reduce car body and environment
The influence of noise, so as to improve the reliability of experiment；The sound proof housing is connected to the side of car body, and energy by carriage
It is enough to be moved along vertical direction, so that tire can cover or depart from sound proof housing, can not only adjust different kinds of tyre installation and disappear
The distance between during acoustic shell and ground, makes sound proof housing constant with the distance between ground, is easy to carry out the noise of different kinds of tyre
Test, additionally it is possible to realize fast quick-detach and the installation of tire, simplify the flow for changing tire, improves the efficiency changed tire and test and disappears
Acoustic shell；Connected using leaf spring between the car body and vehicle bridge, reduce impact noise when car body is run at high speed.The present invention
Using aforesaid way, different kinds of tyre can be accurately detected under different loads, the noise level under the operating condition of road surface is tested
Mode is simple, reliable test result.
The present invention also provides a kind of tyre noise data collecting system, including data collecting system, microphone, wheel speed sensing
Device, temperature measuring set and described tyre noise test device, the data collecting system, microphone, wheel speed sensors, temperature
Measuring instrument is connected with tyre noise test device respectively.
A kind of tyre noise data collecting system that the present invention is provided, by above-mentioned tyre noise test device and data acquisition
System is connected, and when noise testing is carried out to tire, the data collecting system can be tested tyre noise test device
Multi-group data preserved, be then stored in the file specified, be easy to tester to count multigroup test data
Analysis, record wheel tyre revolution can hasten signal, noise signal and temperature signal, for follow-up data simultaneously in test process
Analysis is used, so as to improve the efficiency of test.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of tyre noise test device, it is characterised in that including car body (11), tractive unit (12), load (13), sound proof housing
And noise detection device (15) (14)；
The tractive unit (12) is connected with car body (11), and the load (13) is on car body (11)；The car body (11) sets
There is the installation position for installing tire, the sound proof housing (14) is connected on car body (11) and covers and set installation position, makes on installation position
Tire is contained in sound proof housing (14)；The noise detection device detected to the noise of tire is installed in the sound proof housing (14)
(15)。
2. tyre noise test device according to claim 1, it is characterised in that the load (13) is including connecting rod
And multiple balancing weight (132) (131)；
One end of the connecting rod (131) is connected on car body (11), the selectable company of being socketed in of multiple balancing weights (132)
On extension bar (131), to adjust the quality of the load (13) on car body (11).
3. tyre noise test device according to claim 1, it is characterised in that also including slide mechanism (16)；
The slide mechanism (16) includes leading screw (161), handwheel (162), the first sliding block (163) and slide bar (164)；
One end of the leading screw (161) is connected on car body (11), and is arranged on the side of car body (11), the leading screw (161)
The other end connect handwheel (162), first sliding block (163) is connected on leading screw (161), and with the sound proof housing of car body (11)
(14) connect；The sound proof housing (14) is provided with the second sliding block (141), and the slide bar (164) is connected to the another of car body (11)
Side, second sliding block (141) is connected on slide bar (164)；
When the handwheel (162) rotates, drive the first sliding block (163) vertically moving, first sliding block (163) drives
Sound proof housing (14) makes the second sliding block (141) do vertical direction motion along slide bar (164).
4. tyre noise test device according to claim 1, it is characterised in that the noise detection device (15) includes
Support frame (151) and detector (152)；
The detector (152) is connected to one end of support frame as described above (151), and the other end of support frame as described above (151) is connected to
In sound proof housing (14).
5. tyre noise test device according to claim 1, it is characterised in that also including being connected on car body (11)
Elevating mechanism (17), the elevating mechanism (17) includes leading screw (171), support base (172) and worm and gear (173)；
One end of the leading screw (171) is connected on car body (11), the other end connecting support seat (172) of the leading screw (171),
The worm and gear (173) is connected on leading screw (171), and the distance between car body (11) and ground can be adjusted.
6. tyre noise test device according to claim 1, it is characterised in that also including elastic component (18)；
The elastic component (18) is connected on car body (11), and the tire is connected on car body (11) by vehicle bridge, the elasticity
The middle part of part (18) is connected in vehicle bridge by suspender member (181), and the two ends of the elastic component (18) pass through fixed seat respectively
(182) it is connected on car body (11).
7. tyre noise test device according to claim 4, it is characterised in that support frame as described above (151) and detector
(152) it is corresponding multiple.
8. tyre noise test device according to claim 1, it is characterised in that the tractive unit (12) is connected with support
(121), the support (121) is supported to car body (11).
9. tyre noise test device according to claim 1, it is characterised in that is provided with sound absorption in the sound proof housing (14)
Material.
10. a kind of tyre noise data collecting system, it is characterised in that including data collecting system, microphone, wheel speed sensing
Device, temperature measuring set and tyre noise test device as claimed in any one of claims 1-9 wherein, the data collecting system,
Microphone, wheel speed sensors, temperature measuring set are connected with tyre noise test device respectively.
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