CN204064689U - Single cylinder measures the device of tire drag under whole vehicle state - Google Patents
Single cylinder measures the device of tire drag under whole vehicle state Download PDFInfo
- Publication number
- CN204064689U CN204064689U CN201420532367.3U CN201420532367U CN204064689U CN 204064689 U CN204064689 U CN 204064689U CN 201420532367 U CN201420532367 U CN 201420532367U CN 204064689 U CN204064689 U CN 204064689U
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- China
- Prior art keywords
- single cylinder
- eddy current
- slide rail
- tire drag
- mark post
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Abstract
A kind of single cylinder measures the device of tire drag under whole vehicle state, the both sides of single cylinder connect buncher and eddy current absorption dynamometer respectively by shaft coupling, the end of the rotary drum central shaft of described one end near eddy current absorption dynamometer is connected with three points of force snesor, slide rail is connected with directly over the center of described single cylinder, slide rail is connected with moveable visible light beam, the ground of single cylinder side is placed with a mark post, under mark post, is placed with stadimeter.The measurement of this experiment to tire drag tests not need detaching tyre under the car load of vehicle, decreases the impact of external environment and human factor, and simple to operate, be easy to realize, measuring accuracy is high.
Description
Technical field
The utility model relates to one
measure the device of tire drag, propose one
single cylinder measures the device of tire drag under whole vehicle state.
Background technology
Tire drag testing machine mainly contains rotary drum peace belt two kinds of structures.Flat rubber belting formula testing machine is due to the rigidity that is difficult to meet road surface has under tire heavy load high-speed motion state and flatness requirement, and test effect is not ideal.Rotary drum structure has single cylinder and twin-roll two kinds of versions, and research shows that the test of accurate tire drag is suitable for carrying out on large diameter single cylinder.It is mostly disassembled from tested vehicle by tire to be measured to be then installed to distinctive testing apparatus and to adopt motor to load that existing single cylinder measures tire drag method, such operation is comparatively complicated, and sensor is arranged on axletree to be tested, unload sensor is needed to reinstall again when needs are measured other vehicle, like this because complex steps makes the testing efficiency of tire drag low.And inventor solves above problem by applying for a patent, its application number is 2013104281048, but in use, in order to reach more perfect effect, further improves this device.
Summary of the invention
The utility model provides a kind of single cylinder to exempt to dismantle the device measuring tire drag, directly can measure the resistance to rolling of tire under whole vehicle state, and is convenient to the radius of mensuration wheel and wheel center is alignd with the center of single cylinder.
The utility model realizes like this, it comprises single cylinder, eddy current absorption dynamometer, shaft coupling, buncher, three points of force snesor, slide rail, mark post, stadimeters, it is characterized in that: the both sides of single cylinder connect buncher and eddy current absorption dynamometer respectively by shaft coupling, the end of the rotary drum central shaft of described one end near eddy current absorption dynamometer is connected with three points of force snesor, slide rail is connected with directly over the center of described single cylinder, slide rail is connected with moveable visible light beam, the ground of single cylinder side is placed with a mark post, under mark post, is placed with stadimeter.
Technique effect of the present utility model is: be test not need detaching tyre under the car load of vehicle to the measurement of tire drag, decrease the impact of external environment and human factor, and simple to operate, be easy to realize, measuring accuracy is high, be convenient to position driving wheel ensure that measurement result error does not occur, can measure the radius of driving wheel before measuring simultaneously, shorten detection time, provide working effect.
Accompanying drawing explanation
In order to clearly illustrate that the utility model is implemented or technical scheme of the prior art, do to the accompanying drawing used required in prior art simply to introduce below.
Fig. 1 is the test philosophy figure of the utility model tire drag;
Fig. 2 is the scheme of installation of electric eddy current dynamometer and buncher;
Fig. 3 is three component sensor positioning scheme figure.
In figure, each numerology is as follows:
1, automobile driving wheel 2, single cylinder 3, eddy current absorption dynamometer 4, rotary drum central shaft 5, shaft coupling 6, buncher 7, sensor board 8, three points of force snesor 9, single roller beds 10, slide rail 11, mark post 12, stadimeters.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, and the correlative study done all belongs to the scope of the utility model protection.
As shown in Figure 1, Figure 2, Figure 3 shows, automobile two driving wheels 1 are placed on single cylinder 2 by lifting machine, driving wheel 1 center and single cylinder 2 line of centres and ground vertical.In order to ensure that driving wheel 1 center overlaps with single cylinder 2 line of centres, by slide rail 10, visible light beam is moved to driving wheel, overlapped with visible light beam by adjustment driving wheel center, namely driving wheel 1 center and single cylinder 2 center superposition is achieved, simultaneously before automobile is placed on single cylinder 2, to the range finding of driving wheel radius, mark post 11 is adjusted the central point of highly just in time driven in registry wheel, then the height starting stadimeter 12 pairs of mark posts is measured, and its result is exactly the radius of driving wheel.
Intelligent in order to realize it, reduce human factor, stadimeter, buncher, three points of force snesor and eddy current absorption dynamometer can be accessed treating apparatus respectively, by treating apparatus, the result of process directly be shown on a display screen, not only quick, and the convenient specimens preserving to data.
Single cylinder 2 is arranged on central shaft 4, and an electric eddy current dynamometer 3 has been installed for carrying out loading test to vehicle in one end of central shaft 4; The central shaft other end has installed a buncher 6 for dragging test to vehicle is counter.
As shown in Figure 3 single drum central axis 4 is also provided with three points of force snesor 8, for measuring the reacting force Ft of single drum central axis.
This sensor is assembled together with force plate form and equipment, and sensor is arranged on corner positions corresponding between stand 9 and sensor board 7 respectively.
Step on automobile clutch subsequently, cut off reasonable match and connect.Close shaft coupling 5, connects adjustable motor 6 and central shaft 4, starter motor, and in order to make rotary drum to driving wheel acting force to vehicle front, make rotary drum 2 reverse rotation, being now that rotary drum is counter drags automobile driving wheel.Make the stabilization of speed of testing vehicle driving wheel 1 in some speed.
The data of pick-up transducers when stabilization of speed, by gathering target detection point displacement, data processing is carried out to the displacement collected, analyze the response condition of tire drag displacement field under different operating mode, according to least square method, the sensor samples data gathered are calculated again, try to achieve the reacting force Ft of single drum central axis.
Tire drag is made every effort in retroaction according to described central shaft, adopts anti-dynamometry of dragging to ask square to tire centerline place, asks square to obtain: Fr × L=Ft × (R+L), so tire drag is just: Fr=Ft(1+R/L) at tire centerline place.
For recording the tire drag under different loads Fy, by regulating electric eddy current dynamometer 3, to automobile imposed load, automobile driving wheel 1 stabilization of speed can be made in some speed, is assumed to be N rev/min.Step on automobile clutch afterwards, cut off reasonable match and connect, close shaft coupling 5, connects adjustable motor 6 and central shaft 4, regulate adjustable motor 6, and when making Automobile drive wheel speed and load, rotating speed is the same is N rev/min.
Repeat the resistance to rolling that step above step can try to achieve doughnut under different loads Fy.
Claims (1)
1. one kind
single cylinder measures the device of tire drag under whole vehicle stateit comprises single cylinder, eddy current absorption dynamometer, shaft coupling, buncher, three points of force snesor, slide rail, mark post, stadimeters, it is characterized in that: the both sides of single cylinder connect buncher and eddy current absorption dynamometer respectively by shaft coupling, the end of the rotary drum central shaft of described one end near eddy current absorption dynamometer is connected with three points of force snesor, slide rail is connected with directly over the center of described single cylinder, slide rail is connected with moveable visible light beam, the ground of single cylinder side is placed with a mark post, under mark post, is placed with stadimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532367.3U CN204064689U (en) | 2014-09-16 | 2014-09-16 | Single cylinder measures the device of tire drag under whole vehicle state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532367.3U CN204064689U (en) | 2014-09-16 | 2014-09-16 | Single cylinder measures the device of tire drag under whole vehicle state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064689U true CN204064689U (en) | 2014-12-31 |
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ID=52206177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420532367.3U Expired - Fee Related CN204064689U (en) | 2014-09-16 | 2014-09-16 | Single cylinder measures the device of tire drag under whole vehicle state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768543A (en) * | 2016-11-17 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | The test device and its method of a kind of tire drag |
| CN113237667A (en) * | 2021-03-23 | 2021-08-10 | 湖北环一电磁装备工程技术有限公司 | Control system and method of chassis dynamometer |
-
2014
- 2014-09-16 CN CN201420532367.3U patent/CN204064689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768543A (en) * | 2016-11-17 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | The test device and its method of a kind of tire drag |
| CN113237667A (en) * | 2021-03-23 | 2021-08-10 | 湖北环一电磁装备工程技术有限公司 | Control system and method of chassis dynamometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150916 |
|
| EXPY | Termination of patent right or utility model |