CN108760622A - A kind of slip rate regulating device for road surface profile frictional coefficient tester - Google Patents
A kind of slip rate regulating device for road surface profile frictional coefficient tester Download PDFInfo
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- CN108760622A CN108760622A CN201810588255.2A CN201810588255A CN108760622A CN 108760622 A CN108760622 A CN 108760622A CN 201810588255 A CN201810588255 A CN 201810588255A CN 108760622 A CN108760622 A CN 108760622A
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- testing wheel
- slip rate
- road surface
- regulating device
- surface profile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Tires In General (AREA)
Abstract
The invention discloses a kind of slip rate regulating devices for road surface profile frictional coefficient tester, the regulating device is mounted on a test carriage, there are two tires for setting on test carriage, testing wheel is mounted on bottom of frame, counter weight device is installed on vehicle frame, counter weight device is connected with testing wheel, and load cell is equipped on testing wheel, the inside tires of testing wheel are radial to be evenly distributed with multiple not connected independent air chambers, and adjacent gas chamber outer wall is connected with each other by way of bonding.The method have the benefit that：Realize the realization that the slip rate of testing wheel is adjustable and slides, and have a safety feature, inside tires along the circumferential direction have multiple not connected independent air chambers, after an air-packing device, other gas chambers are not influenced, it is ensured that road surface longitudinal direction friction system test experiments carry out the integrality of process.
Description
Technical field
The present invention relates to a kind of slip rate regulating devices more particularly to a kind of for road surface longitudinal direction friction system tester
Slip rate regulating device.
Background technology
Road surface longitudinal force friction coefficient testing car is a kind of road surface scene special test equipment, is used for test pavement skid resistance
It can and characterize brake force friction coefficient.Longitudinal force friction coefficient is also known as brake force friction coefficient, is kept with vehicle forward direction
Consistent testing wheel when driving with certain speed, checking or not exclusively checking and moist road completely by test special tyre
The ratio of vertical load of the testing wheel longitudinal resistance generated between face with effect on the ground.
Setting testing wheel direction of advance is consistent with vehicle forward direction, and the test position in road pavement；Work as brake force
Test system according to certain test speed along normal wheelpath at the uniform velocity when driving, testing wheel regularly completely braking or
It is longitudinal to generate the longitudinal resistance for hindering testing wheel to advance under the conditions of half braking (fixed slip rate 12%~17%)
Resistance is measured by load cell, and the friction coefficient between size and road surface and tire is directly proportional；Testing wheel is calculated longitudinally to hinder
Power acts on the ratio of vertical load on the ground, as brake force friction coefficient with testing wheel.To make pavement skid resistance condition
Test result with vehicle more coincide when driving on road by worst state, needs water supply installation in the test rail of testing wheel
A certain amount of clean water is continuously sprayed in mark position, and tested road surface is made to remain certain thickness moisture film.
Problem of the existing technology is：Testing wheel usually uses under complicated and exacting terms, it is in motion
Subject various modifications, load, power and high/low temperature effect, it is therefore necessary to which there is higher load-carrying properties, hauling ability, buffering
Performance.Meanwhile also requiring have high-wearing feature and flexible resistance and low rolling resistance and heat generation, common tire is only
There are one gas chambers, if tyre sidewall is punctured or blows out, can cause wheel intrauterine pressure rapid decrease, serious to cause vehicle
Sideslip or inclination, not only test can not go on, and severe patient also occurs that traffic accident.
Invention content
The purpose of the present invention is to provide a kind of slip rate regulating device for road surface longitudinal direction friction system tester, solutions
Shortcoming certainly of the existing technology.
The present invention adopts the following technical scheme that realization：
A kind of slip rate regulating device for road surface profile frictional coefficient tester, the regulating device are mounted on a test carriage
On, there are two tires, the testing wheel to be mounted on bottom of frame for setting on the test carriage, is equipped on vehicle frame with refitting
It sets, the counter weight device is connected with testing wheel, and load cell is equipped on the testing wheel, and promotion is also equipped on vehicle frame
Device, lifting device are connected with testing wheel, which is characterized in that the inside tires of the testing wheel are radial be evenly distributed with it is more
A not connected independent air chamber, adjacent gas chamber outer wall are connected with each other by way of bonding.
Further, the slip rate of the testing wheel has adjustable gear.
Further, the sequence of the gear is that there is no slidings from complete locking to testing wheel for testing wheel.
The method have the benefit that：Realize the realization that the slip rate of testing wheel is adjustable and slides, and safety
Can be good, inside tires along the circumferential direction there are multiple not connected independent air chambers not influence other after an air-packing device
Gas chamber, it is ensured that road surface longitudinal direction friction system test experiments carry out the integrality of process；Simultaneously testing wheel slip rate have can
The gear of adjusting, it is convenient that follow-on test is carried out to testing wheel under various harsh complex working conditions, it will not be interrupted because of fortuitous event.
Description of the drawings
Fig. 1 is the structural schematic diagram of test carriage.
Fig. 2 is the structural schematic diagram of multi-air-chamber tire.
Specific implementation mode
By the following description of the embodiment, it will more contribute to public understanding of the invention, but can't should be by Shen
Given specific embodiment of asking someone is considered as the limitation to technical solution of the present invention, any definition to component or technical characteristic
Be changed and/or to overall structure make form and immaterial transformation is regarded as defined by technical scheme of the present invention
Protection domain.
Slip rate regulating device as depicted in figs. 1 and 2, the regulating device are mounted on a test carriage 1, test carriage 1
There are two tire 2, testing wheels to be mounted on 3 bottom of vehicle frame for upper setting, and counter weight device, counter weight device and test are equipped on vehicle frame
Wheel 4 is connected, and load cell is equipped on testing wheel 4, and lifting device, lifting device and testing wheel 4 are also equipped on vehicle frame
It is connected, the inside tires of testing wheel 4 are radial to be evenly distributed with multiple not connected independent air chambers 5, outside adjacent gas chamber
Wall is connected with each other by way of bonding, and the slip rate of testing wheel has adjustable gear, the sequence of gear be testing wheel from
To testing wheel, there is no slidings for complete locking.The device is similar to the principle of a differential mechanism, our normal wheels are in traveling
When, it is rated speed, is contacted with road surface, is not made its rotation by any resistance, the device to be invented one gearbox of similar picture,
It is to be understood that normal vehicle has 4 wheels, when running car 4 wheels operatings be the same, in this implementation
In example, we increase set of device and a testing wheel, and testing wheel is controlled and adjustable, have gear, normal wheel rotation
It circles, testing wheel can lack according to what slip rate rotated, and few part is just supplemented with sliding, utilize the force value of sliding part
Etc. parameters can measure the friction coefficient on road surface.The present embodiment realize testing wheel slip rate is adjustable and follow-on test can
It by property, and has a safety feature, inside tires along the circumferential direction have multiple not connected independent air chambers, when a gas chamber is broken
After splitting, other gas chambers are not influenced, it is ensured that road surface longitudinal direction friction system test experiments carry out the integrality of process；Testing wheel simultaneously
Slip rate there is adjustable gear, it is convenient that follow-on test, Bu Huiyin are carried out to testing wheel under various harsh complex working conditions
Fortuitous event and interrupt.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding change and deformations according to the present invention, but these it is corresponding change and
Deformation should all belong to the protection domain of appended claims of the invention.
Claims (3)
1. a kind of slip rate regulating device for road surface profile frictional coefficient tester, which is mounted on a test
Che Shang, there are two tires, the testing wheel to be mounted on bottom of frame for setting on the test carriage, is equipped on vehicle frame with refitting
It sets, the counter weight device is connected with testing wheel, and load cell is equipped on the testing wheel, and promotion is also equipped on vehicle frame
Device, lifting device are connected with testing wheel, which is characterized in that the inside tires of the testing wheel are radial be evenly distributed with it is more
A not connected independent air chamber, adjacent gas chamber outer wall are connected with each other by way of bonding.
2. the slip rate regulating device according to claim 1 for road surface profile frictional coefficient tester, feature exists
In the slip rate of the testing wheel has adjustable gear.
3. the slip rate regulating device according to claim 2 for road surface profile frictional coefficient tester, feature exists
In the sequence of the gear is that there is no slidings from complete locking to testing wheel for testing wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588255.2A CN108760622A (en) | 2018-06-08 | 2018-06-08 | A kind of slip rate regulating device for road surface profile frictional coefficient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588255.2A CN108760622A (en) | 2018-06-08 | 2018-06-08 | A kind of slip rate regulating device for road surface profile frictional coefficient tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108760622A true CN108760622A (en) | 2018-11-06 |
Family
ID=63999684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810588255.2A Pending CN108760622A (en) | 2018-06-08 | 2018-06-08 | A kind of slip rate regulating device for road surface profile frictional coefficient tester |
Country Status (1)
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| CN (1) | CN108760622A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231284A (en) * | 2019-07-16 | 2019-09-13 | 上海宝冶集团南京建筑有限公司 | A kind of rigidity friction coefficient measuring apparatus |
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN113358050A (en) * | 2021-06-26 | 2021-09-07 | 南京熙赢测控技术有限公司 | Calibration system and method of laser rut instrument |
| CN114594045A (en) * | 2022-03-10 | 2022-06-07 | 重庆交通大学 | Continuous detector for road surface friction performance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3325661A1 (en) * | 1983-07-15 | 1985-01-24 | Vysoká škola technická, Košice | Function simulator for friction and wear testing of shaping moulds |
| CN105891107A (en) * | 2016-06-29 | 2016-08-24 | 重庆交通大学 | Device and method for testing friction performance of pavement material |
| CN106891672A (en) * | 2017-03-08 | 2017-06-27 | 江苏金坛大迈汽车工程研究院有限公司 | A kind of automobile tire |
| CN206523418U (en) * | 2017-03-10 | 2017-09-26 | 北京今谷神箭测控技术研究所 | Road surface longitudinal force friction coefficient testing car |
| CN206618673U (en) * | 2017-04-13 | 2017-11-07 | 长安大学 | Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients |
-
2018
- 2018-06-08 CN CN201810588255.2A patent/CN108760622A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3325661A1 (en) * | 1983-07-15 | 1985-01-24 | Vysoká škola technická, Košice | Function simulator for friction and wear testing of shaping moulds |
| CN105891107A (en) * | 2016-06-29 | 2016-08-24 | 重庆交通大学 | Device and method for testing friction performance of pavement material |
| CN106891672A (en) * | 2017-03-08 | 2017-06-27 | 江苏金坛大迈汽车工程研究院有限公司 | A kind of automobile tire |
| CN206523418U (en) * | 2017-03-10 | 2017-09-26 | 北京今谷神箭测控技术研究所 | Road surface longitudinal force friction coefficient testing car |
| CN206618673U (en) * | 2017-04-13 | 2017-11-07 | 长安大学 | Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231284A (en) * | 2019-07-16 | 2019-09-13 | 上海宝冶集团南京建筑有限公司 | A kind of rigidity friction coefficient measuring apparatus |
| CN110231284B (en) * | 2019-07-16 | 2024-01-30 | 上海宝冶集团南京建筑有限公司 | Rigidity friction coefficient measuring device |
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN111751271B (en) * | 2020-07-07 | 2023-08-08 | 吉小龙 | Road surface antiskid performance decay detection device |
| CN113358050A (en) * | 2021-06-26 | 2021-09-07 | 南京熙赢测控技术有限公司 | Calibration system and method of laser rut instrument |
| CN114594045A (en) * | 2022-03-10 | 2022-06-07 | 重庆交通大学 | Continuous detector for road surface friction performance |
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Application publication date: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |