CN102486454A - Friction coefficient tester for pavement - Google Patents
Friction coefficient tester for pavement Download PDFInfo
- Publication number
- CN102486454A CN102486454A CN2010105713581A CN201010571358A CN102486454A CN 102486454 A CN102486454 A CN 102486454A CN 2010105713581 A CN2010105713581 A CN 2010105713581A CN 201010571358 A CN201010571358 A CN 201010571358A CN 102486454 A CN102486454 A CN 102486454A
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- China
- Prior art keywords
- support
- friction coefficient
- base plate
- processor
- coefficient tester
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- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention, relating an improvement of the structure of a friction coefficient tester, provides a friction coefficient tester for pavement. The tester disclosed herein has the advantages of small volume, simple operation, accurate test, and stable performance. The tester comprises a base plate, wherein the base plate is provided with a driving shaft, two ends of the driving shaft which is provided with a velocity sensor and a driving gear set are provided with driving wheels, one end of a support is arranged on the base plate, the other end of the support is provided with a driven shaft which is provided with a driven gear and bending moment sensor, driven wheels are arranged on the two ends of the driven shaft through fixed connection, the driven gear is connected with the driving gear set through chains, the support is provided with a movable connecting rod through a movable sleeve, the support is provided with a display having a processor, and the processor is electrically connected with the velocity sensor and the bending moment sensor.
Description
Technical field
The present invention relates to a kind of improvement of surface friction coefficient tester structure.
Background technology
Friction factor between vehicle tyre and the institute's track is an important indicator that guarantees normal vehicle operation and safety traffic.Common friction coefficient measurement method roughly has two kinds at present: a kind of is sensor installation on testing vehicle, when testing vehicle goes on the road surface, just can record parameters such as friction factor.Though the test of this method of testing is consistent with actual conditions, testing expense is high; The braking force coefficient tester just belongs to that this is a kind of, and being characterized in can be at the average friction coefficient in broad velocity range build-in test part highway section, and the situation when test result relatively meets the vehicle actual brake generally only is suitable for the use of short distance or special road section.
Another kind is the testing apparatus of surface friction coefficient.Wherein the swinging friction coefficient tester is easy to carry, and is simple to operate, but can only be at the friction factor of measuring under the single-point sampling condition under a kind of speed, and inapplicable to thick structure road surface, lean on artificial reconnaissance, and randomness is big, and accuracy of detection is lower, wastes time and energy.
Summary of the invention
The present invention is exactly to the problems referred to above, provide that a kind of volume is little, simple to operate, test accurately, a kind of surface friction coefficient tester of stable performance.
For reaching above-mentioned purpose of the present invention, the present invention adopts following technical scheme, the present invention includes base plate, and its structural feature base plate is provided with main drive shaft, and the two ends with main drive shaft of speed pickup and driving tooth wheels are provided with driving wheel; One end of support is arranged on the base plate, and the other end setting of support has the driven shaft of follower gear and moment of flexure sensor; Engaged wheel is arranged on the two ends of driven shaft through fixed connection; Follower gear is connected on the driving tooth wheels through chain; Be equipped with movable rod through being slidingly connected on the support, the processor with display is set on the support; Processor is connected with the moment of flexure sensor electrical with speed pickup.
Beneficial effect of the present invention:
1, volume is little, simple to operate:
This practical base plate is provided with main drive shaft, and the two ends with main drive shaft of speed pickup and driving tooth wheels are provided with driving wheel; One end of support is arranged on the base plate, and the other end setting of support has the driven shaft of follower gear and moment of flexure sensor; Engaged wheel is arranged on the two ends of driven shaft through fixed connection; Follower gear is connected on the driving tooth wheels through chain; Be equipped with movable rod through being slidingly connected on the support, the processor with display is set on the support; Processor is connected with the moment of flexure sensor electrical with speed pickup; Member is few, volume is little; Because movable rod places on the support through being slidingly connected, during use, only need to promote movable rod, or pull movable rod with car, the present invention is moved on the road surface, can read the friction factor of this road section surface through the display of processor;
2, accurate, the stable performance of test:
The present invention, because design feature of the present invention, when the present invention moves on the road surface, because the driving tooth wheels on the main drive shaft are greater than follower gear; So the rotating speed of engaged wheel is different with driving wheel, then engaged wheel produces and slides, and sliding to cause thus produces moment of flexure on the driven shaft, record through the moment of flexure sensor; Be transferred in the processor,, can draw accurately through calculating with the data of speed pickup acquisition; The friction factor on ground is presented on the display of processor stable performance then.
Description of drawings
Fig. 1 is a structural representation of the present invention;
1 is that driving wheel, 2 is that main drive shaft, 3 is that base plate, 4 is that moment of flexure sensor, 5 is that driving tooth wheels, 6 are that chain, 7 is that speed pickup, 8 is that counterweight, 9 is that driven shaft, 10 is that follower gear, 11 is that engaged wheel, 12 is that processor, 13 is that display, 14 is that movable sleeve, 15 is that support, 16 is a movable rod in the accompanying drawing.
Embodiment
The present invention includes base plate 3, base plate 3 is provided with main drive shaft 2, and the two ends with main drive shaft 2 of speed pickup 7 and driving tooth wheels 5 are provided with driving wheel 1; One end of support 15 is arranged on the base plate 3, and the other end setting of support 15 has the driven shaft 9 of follower gear 10 and moment of flexure sensor 4; Engaged wheel 11 is arranged on the two ends of driven shaft 9 through fixed connection; Follower gear 10 is connected on the driving tooth wheels 5 through chain 6; Be provided with movable rod 16 through movable sleeve 14 on the support 15, the processor 12 with display 13 is set on the support 15; Processor 12 is electrically connected with speed pickup 7 and moment of flexure sensor 4.
Driving tooth wheels 5 use the gear of at least two ascending arrangements of diameter; Can measure friction force with different speed.
The gear of driving tooth wheels 5 is all greater than follower gear 10.
Main drive shaft 2 is provided with counterweight 8; Weight is concentrated on the driving wheel, prevent that driving wheel 11 from having slip.
Processor 12 set inside storeies; Can data recording be got off.
Below in conjunction with a description of drawings course of action of the present invention:
During use, can movable rod 16 of the present invention be connected on the car, or hand push movable rod 16; The present invention is on the way moved, because the diameter of driving tooth wheels 5 is greater than the diameter of follower gear 10, so the rotating speed of engaged wheel 11 is greater than driving wheel 1; Engaged wheel 11 produces slip thus; The slip of engaged wheel 11 makes driven shaft 9 produce moment of flexure, and the moment of flexure sensor 4 on the driven shaft 9 is measured parasitic moment, and data are imported in the processor 12; Processor 12 calculates the data of moment of flexure sensor 4 with the data of speed pickup 7, draw friction factor, is stored in the reservoir and is presented on the display 13.
Claims (4)
1. a surface friction coefficient tester comprises base plate (3), it is characterized in that base plate (3) is provided with main drive shaft (2), and the two ends with main drive shaft (2) of speed pickup (7) and driving tooth wheels (5) are provided with driving wheel (1); One end of support (15) is arranged on the base plate (3), and the other end setting of support (15) has the driven shaft (9) of follower gear (10) and moment of flexure sensor (4); Engaged wheel (11) is arranged on the two ends of driven shaft (9) through fixed connection; Follower gear (10) is connected on the driving tooth wheels (5) through chain (6); Support (15) is gone up and is provided with movable rod (16) through movable sleeve (14), and support (15) is gone up the processor (12) with display (13) is set; Processor (12) is electrically connected with speed pickup (7) and moment of flexure sensor (4).
2. a kind of surface friction coefficient tester according to claim 1 is characterized in that driving tooth wheels (5) use the gear of at least two ascending arrangements of diameter.
3. a kind of surface friction coefficient tester according to claim 2, the gear that it is characterized in that described driving tooth wheels (5) is all greater than follower gear (10).
4. a kind of surface friction coefficient tester according to claim 1 is characterized in that main drive shaft (2) is provided with counterweight (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105713581A CN102486454A (en) | 2010-12-03 | 2010-12-03 | Friction coefficient tester for pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105713581A CN102486454A (en) | 2010-12-03 | 2010-12-03 | Friction coefficient tester for pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102486454A true CN102486454A (en) | 2012-06-06 |
Family
ID=46151973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105713581A Pending CN102486454A (en) | 2010-12-03 | 2010-12-03 | Friction coefficient tester for pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102486454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527221A (en) * | 2015-12-10 | 2016-04-27 | 江南大学 | Frictional force simulation generator |
| CN109668682A (en) * | 2018-04-30 | 2019-04-23 | 交通运输部公路科学研究所 | A kind of side-friction calibrating installation and calibration method |
-
2010
- 2010-12-03 CN CN2010105713581A patent/CN102486454A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527221A (en) * | 2015-12-10 | 2016-04-27 | 江南大学 | Frictional force simulation generator |
| CN109668682A (en) * | 2018-04-30 | 2019-04-23 | 交通运输部公路科学研究所 | A kind of side-friction calibrating installation and calibration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120606 |