CN208459332U - A kind of tire/road rumble indoor test device - Google Patents
A kind of tire/road rumble indoor test device Download PDFInfo
- Publication number
- CN208459332U CN208459332U CN201821291280.6U CN201821291280U CN208459332U CN 208459332 U CN208459332 U CN 208459332U CN 201821291280 U CN201821291280 U CN 201821291280U CN 208459332 U CN208459332 U CN 208459332U
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- detection chambers
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- pressure
- control chamber
- hydraulic cylinder
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Abstract
The utility model discloses a kind of tire/road rumble indoor test devices, including control chamber setting up and down and detection chambers, the indoor direct current generator of control chamber is fixedly connected by motor cabinet with the support base of hydraulic cylinder, hydraulic cylinder is fixed on the support frame of control chamber, hydraulic cylinder is connect by pressure-control valve with hydraulic hand-pump, the drive shaft of direct current generator passes through shaft coupling and transmission axis connection, transmission shaft extends in detection chambers, the transmission the tip of the axis is connected with driven shaft by being driven mandrel connector, the both ends of driven shaft are respectively fixed with test wheel, sound-absorbing material is pasted on the inner wall of detection chambers, the side wall of detection chambers is equipped with the noise measuring mouth being connected with noise-measuring system.The utility model can simulate road surface/tyre noise under different condition indoors and accurately tested and noise immune evaluation.
Description
Technical field
The utility model belongs to highway engineering experimental provision technical field, and in particular in a kind of tire/road rumble room
Test device.
Background technique
Road rumble is that road construction industry faces one of pavement characteristics problem the most urgent, especially urban area master
It wants near traffic main artery or area densely populated, that the volume of traffic is big, road rumble seriously affects the routine work and life of people
It is living, potential hazard is brought to the physiology and mental health of people.Traffic noise is by vehicle background noise and road surface/tyre noise two
Part forms, and road surface/tire coupled noise is to contact the non-steady of generation with road surface during rolling by vehicle tyre
State random noise, with car speed, ground surface material, tire construction and material, characteristic of road surface, tire tread pattern, tire
The factors such as tire pressure, tire wear, load-carrying and road environment situation are related, and road surface/tyre noise test is that road environment noise is commented
A critically important link in valence, measurement method directly affect the science of evaluation result.
There are many road surface/tyre noise test evaluation method, can totally be divided into 4 kinds: first is that remote field testing method, including system
Meter passes through method (CPB) by method (SPB) and control vehicle；Second is that near-field test method, including trailer method (CPX), sound intensity technique
(CPI) and nearly tire sound pressure method；Third is that indoor simulation method, including rotary drum method and tire monomer assays method；Fourth is that porous pavements table
Face sound absorption test method, outdoor noise detection device are expensive and by wind speed, vehicle noise, ambient noise pair in test process
Test result influences serious problem, and indoor detection device has a single function, and is unfavorable for road surface/tire under indoor simulation different condition
The accurate test and the evaluation of noise immune of noise.
Summary of the invention
The utility model is solution tire/road rumble outdoor noise test equipment valuableness, and by test process apoplexy
Speed, vehicle noise, ambient noise influence seriously test result, and the single problem of indoor test apparatus function provides one kind
Tire/road rumble indoor test device.
The utility model adopts the following technical scheme that solve above-mentioned technical problem, surveys in a kind of tire/road rumble room
Trial assembly is set, it is characterised in that including control chamber setting up and down and detection chambers, wherein between control chamber and detection chambers
Reserved transmission shaft mounting hole is simultaneously isolated using sound-proof material, and the indoor direct current generator of control chamber passes through motor cabinet and hydraulic cylinder
Support base is fixedly connected, and hydraulic cylinder is fixed on the support frame of control chamber, and hydraulic cylinder passes through pressure-control valve and hand-hydraulic
Pump connection, direct current generator are connect with DC power supply by electric machine controller, control and be respectively equipped on the shell of chamber and pressure control
Valve, hydraulic hand-pump and electric machine controller processed connected pressure control handle, pressurized handgrip and motor speed control button, direct current
The drive shaft of motor is extended in detection chambers by shaft coupling and transmission axis connection, transmission shaft, which passes through
Transmission mandrel connector is connected with driven shaft, and the both ends of driven shaft are respectively fixed with test wheel, are pasted on the inner wall of detection chambers
Sound-absorbing material, the side wall of detection chambers are equipped with the noise measuring mouth being connected with noise-measuring system, which adopts
With the TES-1353H acoustic meter with microphone extended line, measurement range 30-130dB, measurement accuracy ± 1.5dB, frequency weighting
Characteristic is A and C characteristic.
Preferably, the operating pressure of the hydraulic hand-pump is 100-300MPa, is equipped with pressure reducing valve in the hydraulic hand-pump
And Safety relief valve.
Preferably, the test wheel uses diameter for 150cm, width 5cm smooth surface solid tyre, the pressure of the test wheel and road surface
Power is adjusted between 0.2-1MPa, and the traveling linear velocity for testing wheel is adjusted between 0-120Km/h.
Preferably, the test wheel is equipped with pressure sensor, and the registration of the pressure sensor is by being set to control chamber
Pressure gauge in room housing is shown.
Preferably, the detection chambers are for bottom uncovered structure and having a size of the square body cavity of 60cm × 60cm × 25cm
Room.
The utility model can simulate road surface/tyre noise under different condition indoors and accurately tested and
Noise immune evaluation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of the utility model.
In figure: 1- control chamber, 2- detection chambers, 3- direct current generator, 4- hydraulic cylinder, 5- support frame, 6- pressure-control valve,
7- hydraulic hand-pump, 8- electric machine controller, 9- pressure control handle, 10- pressurized handgrip, 11- motor speed control button, 12-
Drive shaft, 13- transmission shaft, 14- driven shaft, 15- test wheel, 16- noise measuring mouth, 17- pressure gauge, 18- switch button, 19-
Power supply indicator, 20- run indicator.
Specific embodiment
The technical solution of the utility model, a kind of tire/road rumble indoor test device, packet is described in detail in conjunction with attached drawing
Control chamber 1 and detection chambers 2 setting up and down are included, wherein reserving transmission shaft mounting hole between control chamber 1 and detection chambers 2
And be isolated using sound-proof material, the direct current generator 3 controlled in chamber 1 connects by the way that the support base of motor cabinet and hydraulic cylinder 4 is fixed
It connecing, hydraulic cylinder 4 is fixed on the support frame 5 of control chamber 1, and hydraulic cylinder 4 is connect by pressure-control valve 6 with hydraulic hand-pump 7,
Direct current generator 3 is connect by electric machine controller 8 with DC power supply, is respectively equipped on the shell of control chamber 1 and pressure-control valve
6, pressure control handle 9, pressurized handgrip 10 and motor speed control button 11 that hydraulic hand-pump 7 and electric machine controller 8 are connected,
The drive shaft 12 of direct current generator 3 is connect by shaft coupling with transmission shaft 13, and transmission shaft 13 extends in detection chambers 2, the transmission
The end of axis 13 is connected with driven shaft 14 by being driven mandrel connector, and the both ends of driven shaft 14 are respectively fixed with test wheel 15, inspection
It surveys on the inner wall of chamber 1 and is pasted with sound-absorbing material, the side wall of detection chambers 1 is equipped with the noise inspection being connected with noise-measuring system
Survey mouth 16, the noise-measuring system use with microphone extended line TES-1353H acoustic meter, measurement range 30-130dB,
Measurement accuracy ± 1.5dB, frequency weighting characteristic are A and C characteristic.
The operating pressure of the hydraulic hand-pump 7 is 100-300MPa, is equipped with pressure reducing valve and safety in the hydraulic hand-pump 7
Diffusion valve；The test wheel 15 uses diameter for 150cm, width 5cm smooth surface solid tyre, the pressure energy of the test wheel 15 and road surface
Enough to adjust between 0.2-1MPa, the traveling linear velocity of test wheel 15 can be adjusted between 0-120Km/h；The test wheel 15
It is equipped with pressure sensor, the registration of the pressure sensor passes through the pressure gauge 17 being set on control 1 shell of chamber and shows.Institute
The shell for stating control chamber 1 is equipped with switch button 18, power supply indicator 19 and run indicator 20, and the detection chambers 2 are
Having a size of the square fluid chamber of 60cm × 60cm × 25cm, the bottom of the detection chambers 2 is uncovered structure, will inspection in detection process
It surveys chamber 2 to be placed on test specimen to be measured or road surface, noise-measuring system is connected to the noise measuring mouth on 2 side wall of detection chambers
16 noise to test in detection chambers 2.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is practical new not departing from this
Under the premise of type spirit and scope, there are also various changes and modifications, these changes and improvements both fall within requirement and protect the utility model
The scope of the utility model of shield.
Claims (5)
1. a kind of tire/road rumble indoor test device, it is characterised in that including control chamber setting up and down and test chamber
Room, wherein reserving transmission shaft mounting hole between control chamber and detection chambers and being isolated using sound-proof material, in control chamber room
Direct current generator be fixedly connected by motor cabinet with the support base of hydraulic cylinder, hydraulic cylinder be fixed on control chamber support frame on,
Hydraulic cylinder is connect by pressure-control valve with hydraulic hand-pump, and direct current generator is connect by electric machine controller with DC power supply, is controlled
Be respectively equipped on the shell of chamber processed be connected with pressure-control valve, hydraulic hand-pump and electric machine controller pressure control handle,
Pressurized handgrip and motor speed control button, by shaft coupling and transmission axis connection, transmission shaft extends the drive shaft of direct current generator
To detection chambers, which is connected with driven shaft by being driven mandrel connector, and the both ends of driven shaft are fixed respectively
There is test to take turns, sound-absorbing material is pasted on the inner wall of detection chambers, the side wall of detection chambers is equipped with and noise-measuring system phase
Noise measuring mouth even, the noise-measuring system use the TES-1353H acoustic meter with microphone extended line, measurement range
30-130dB, measurement accuracy ± 1.5dB, frequency weighting characteristic are A and C characteristic.
2. tire according to claim 1/road rumble indoor test device, it is characterised in that: the hydraulic hand-pump
Operating pressure be 100-300MPa, pressure reducing valve and Safety relief valve are equipped in the hydraulic hand-pump.
3. tire according to claim 1/road rumble indoor test device, it is characterised in that: the test wheel uses
Diameter is 150cm, width 5cm smooth surface solid tyre, and the pressure on the test wheel and road surface is adjusted between 0.2-1MPa, tests wheel
Traveling linear velocity is adjusted between 0-120Km/h.
4. tire according to claim 1/road rumble indoor test device, it is characterised in that: set on the test wheel
There is pressure sensor, the registration of the pressure sensor passes through the pressure gauge being set in control chamber housing and shows.
5. tire according to claim 1/road rumble indoor test device, it is characterised in that: the detection chambers are
Bottom uncovered structure and having a size of the square fluid chamber of 60cm × 60cm × 25cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821291280.6U CN208459332U (en) | 2018-08-10 | 2018-08-10 | A kind of tire/road rumble indoor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821291280.6U CN208459332U (en) | 2018-08-10 | 2018-08-10 | A kind of tire/road rumble indoor test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208459332U true CN208459332U (en) | 2019-02-01 |
Family
ID=65180769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821291280.6U Active CN208459332U (en) | 2018-08-10 | 2018-08-10 | A kind of tire/road rumble indoor test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208459332U (en) |
-
2018
- 2018-08-10 CN CN201821291280.6U patent/CN208459332U/en active Active
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