CN101178338A - Measurement processing method for tire jumping range - Google Patents
Measurement processing method for tire jumping range Download PDFInfo
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- CN101178338A CN101178338A CNA2006101292233A CN200610129223A CN101178338A CN 101178338 A CN101178338 A CN 101178338A CN A2006101292233 A CNA2006101292233 A CN A2006101292233A CN 200610129223 A CN200610129223 A CN 200610129223A CN 101178338 A CN101178338 A CN 101178338A
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Abstract
The invention relates to a treatment method for measuring the jigging degree of tyre. The tyre is arranged on a main shaft of a running balance indicating machine for inflation and keeps stable. The main shaft of the running balance indicating machine is started to lead the tyre to rotate at a speed of 60rpm with the main shaft. A laser displacement sensor is in place and a light source is opened. A sampling data document is acquired by transferring a sampling procedure. The sampling data is filtered by adopting a low level bandpass filtering method to eliminate undesired signals and keep the data after being filtered into the data document. A tattoo letter treating procedure is transferred on the data at the side of the tyre acquired by sampling filtering and a jigging value is calculated. A groove treating procedure is transferred on the surface of the tyre acquired by sampling filtering and the jigging value is calculated. The running balance indicating machine is stopped to rotate, the laser displacement sensor returns to a zero position and the tyre is deflated. The invention can better eliminate the influences on the jigging degree measuring caused by burr, groove, tattoo, and letter on the surface of the tyre, etc., get real jigging sampling data of the tyre and improve the measuring precision and repeated precision of the jigging degree performance index of the tyre.
Description
Technical field
The present invention relates to a kind of measurement of tire jumping range.Particularly relate to a kind of influence that can eliminate letter, groove etc. to the beating degree measurement result, the reduction tire situation of beating really can improve the measurement processing method for tire jumping range of the measuring accuracy and the repeatable accuracy of tire jumping range performance parameter.
Background technology
Because the develop rapidly of traffic automobile industry is more and more higher to the quality and the performance requirement of tire both at home and abroad.The beating degree of tire (out-of-roundness) is the important techniques index that tyre evenness detects, in order to the geometry unevenness of expression tire.In the tire checking, this index height, reflected geometrical defects such as the projection on the tyre surface of tire and sidewall and depression, if defective is excessive, will influence the state of wheel running, form when making vehicle operating and vibrate and jolt, make feeling comfortably cool property of passenger very poor, influence the smoothness of automobilism; Increase the chance of fault, influence the serviceable life of tire.Therefore, tire enterprise is to the detection of the quality of tire, and beating degree (out-of-roundness) is one of them important techniques index.The beating degree of tire (out-of-roundness) mainly contains two parameters: one is radius run-out degree, the error of finger wheel tire diameter or circumference.Because this error causes the vehicle body bob, is referred to as diameter run-out.One is the side direction beating degree, and the side direction beating degree is the geometry unevenness of the side of tire, protrudes with depression in the tire lateral surface and waits geometrical defect.In operation process, this geometrical defect causes the vehicle body double swerve, is referred to as side direction and beats.
Measurement based on the tire jumping range of non-contact laser displacement transducer, measure by high-precision surface tire, measure corresponding side direction and beat and diameter run-out, the technological problems that exists in identification clearly and the diagnosis tire production improves the quality of products thereby improve.The measurement of beating degree also is an effective means that guarantees that product quality improves constantly.
In beating degree (out-of-roundness) was measured, Protean groove of surface of tyre and decorative pattern, big minuscule and burr with the accuracy that influence is measured, must adopt a kind of special filtering method to remove groove and decorative pattern etc., obtain corresponding accurate beating degree value.
In beating degree checkout equipment in the past, when carrying out the beating degree measurement, in order to avoid groove, decorative pattern and letter, normally adjust the software algorithm that the laser measurement point reaches avoidance groove, decorative pattern and a kind of measuring method correspondence of alphabetical purpose by adopting, be difficult to adapt to multiple measurement with different grooves and rib tire, measuring accuracy is not high, and adaptability is relatively poor.
Summary of the invention
Technical matters to be solved by this invention is, a kind of influence that can eliminate letter, groove etc. to the beating degree measurement result is provided, the reduction tire situation of beating really can improve the measurement processing method for tire jumping range of the measuring accuracy and the repeatable accuracy of tire jumping range performance parameter.
The technical solution adopted in the present invention is: a kind of measurement processing method for tire jumping range includes:
(1) tire is installed on the dynamic balancing machine main shaft inflation and keep stable;
(2) start the dynamic balancing machine main shaft, make tire with its speed rotation with 60rpm;
(3) laser displacement sensor puts in place and opens light source;
(4) call sampling routine and obtain the sampled data file;
(5) adopt the low order band-pass filtering method to carry out Filtering Processing to sampled data, eliminate undesired signal, and filtered data are deposited in the data file;
(6) the tire sidewall data call decorative pattern letter handling procedure that sampling filter is obtained calculates the value of beating;
(7) the data call groove handling procedure of the tire tread that sampling filter is obtained calculates the value of beating;
(8) stop the dynamic balancing machine rotation, laser displacement sensor is got back to zero-bit, and output bleeds a tire.
The described tire sidewall data call decorative pattern letter handling procedure that sampling filter is obtained calculates the value of beating, and includes as the next stage:
(1) stage of calculating sampling data variation rate;
(2) rate of change is carried out stage of integration;
(3) integral result is judged, found out the stage of decorative pattern starting point;
(4) rate of change is carried out once more stage of integration;
(5) integral result is judged, found out the stage of the terminating point of decorative pattern;
(6) all starting points and the data between the terminating point are carried out stage of linear difference.
Described integral result is judged, found out the starting point of decorative pattern and the stage of terminating point, include integrated value greater than zero judgement with to the minus judgement of integrated value.
When the integrated value of for the first time rate of change being carried out integration greater than zero the time, judge that at first whether integrated value is less than setting value, be then to return again rate of change is carried out integration, otherwise, judge that whether maximum rate of change is less than setting value, be then to return again rate of change is carried out integration, otherwise, set this point and be starting point; For the second time rate of change is carried out integration, when integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to return again rate of change is carried out integration, otherwise, whether judging maximum rate of change less than setting value, is then to return the stage of for the first time rate of change being carried out integration, again rate of change is carried out integration, otherwise setting this point is terminating point.
Described all starting points and the data between the terminating point being carried out linear difference, is that the following linear equation of The data between its 2 is calculated:
Yi＝Y0+(Xi-X0)*(Y1-Y0)/(X1-X0)。
The described tire tread data call groove handling procedure that sampling filter is obtained calculates the value of beating, and includes as the next stage:
(1) stage of calculating sampling data variation rate;
(2) rate of change is carried out stage of integration;
(3) integral result is judged, found out the stage of groove starting point;
(4) rate of change is carried out once more stage of integration;
(5) integral result is judged, found out the stage of the terminating point of groove;
(6) deposit all starting points and terminating point in array, and it is traveled through;
(7) judged whether bimodal situation, had and then return the quadravalence section, otherwise carry out next step;
(8) final starting point and the data between the terminating point are carried out stage of linear difference.
Described integral result is judged, found out the starting point of groove and the stage of terminating point, include integrated value greater than zero judgement with to the minus judgement of integrated value.
When the integrated value of for the first time rate of change being carried out integration greater than zero the time, judge that at first whether integrated value is less than setting value, be then to return again rate of change is carried out integration, otherwise, judge that whether maximum rate of change is less than setting value, be then to return again rate of change is carried out integration, otherwise, set this point and be starting point; For the second time rate of change is carried out integration, when integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to return again rate of change is carried out integration, otherwise, whether judging maximum rate of change less than setting value, is then to return the stage of for the first time rate of change being carried out integration, again rate of change is carried out integration, otherwise setting this point is terminating point.
Describedly deposit all starting points and terminating point in array, and it is traveled through, judged whether bimodal situation, its criterion is: adjacent two groups of starting points and terminating point, starting point that the back is one group and last group terminating point are separated by less than preset value, be bimodal, this moment will the back one group terminating point as last group terminating point, can eliminate bimodal.
Thereby describedly all starting points and the data between the terminating point are carried out linear difference eliminate decorative pattern, the following linear equation of the The data between its 2 calculates:
Yi＝Y0+(Xi-X0)*(Y1-Y0)/(X1-X0)。
Measurement processing method for tire jumping range of the present invention, can well eliminate of the influence of unfavorable factors such as surface of tyre burr, groove, decorative pattern, letter to the beating degree measurement result, restore the tire sampled data of beating really, improve the measuring accuracy and the repeatable accuracy of tire jumping range performance parameter greatly.
Description of drawings
Fig. 1 is a tire sidewall data waveform synoptic diagram;
Fig. 2 a is a tire jumping range original sampling data synoptic diagram;
Fig. 2 b is a tire jumping range sampled data numerical value change rate synoptic diagram;
Fig. 3 tire tread is handled the back design sketch;
Fig. 4 is the process flow diagram of decorative pattern letter handling procedure of the present invention;
Fig. 5 is the process flow diagram of groove handling procedure of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments measurement processing method for tire jumping range of the present invention is made a detailed description.
The beating degree performance parameter of tire comprises two classes: side direction beating degree and radius run-out degree.Wherein,
Tyre side is meant that to beating degree the tire lateral surface is protruded and depression waits geometrical defect, detection system employing laser displacement sensor is measured with special software and is carried out the intelligent filter processing, permission is effectively analyzed the sidewall that complicated letter and pattern are arranged, described special software is a known systems, so no longer describe;
The tire runout kilsyth basalt reveals the rough degree of tire radial surface, and groove, burr because the tire radial surface gathers so require software systems can eliminate above-mentioned influence, restore the situation of beating really.
Measurement processing method for tire jumping range of the present invention includes:
1, tire is installed in inflation and stable on the dynamic balancing machine main shaft.Tire is sent into lubricated station through travelling belt, and lubricated centering device starts, during tire is embraced after, lubricating rod stretches out, the tire rotation, behind lubricated the end, centering device is regained, travelling belt starts, and tire is sent into the measurement station.
2, start the dynamic balancing machine main shaft, make tire with the speed rotation of main shaft with 60rpm.The measurement centering device starts, and during tire was embraced, lifting table descended, and tire drops on down on the wheel rim, and upper spider moves into place, lower chuck locking, and upper chuck unclamps, and after inflation of tire was stable, main shaft began rotation.
3, laser displacement sensor puts in place and opens light source.
4, call sampling routine and obtain the sampled data file
5, adopt the low order band-pass filtering method to carry out Filtering Processing to sampled data, eliminate undesired signal, and filtered data are deposited in the data file; The method of low order bandpass filtering can be followed the trail of along any needle-like end points or minuscule, eliminates minuscule, burr and The noise.The method belongs to technique known, here no longer is described in detail.
6, the tire sidewall data call decorative pattern letter handling procedure that sampling filter is obtained calculates the value of beating.This decorative pattern letter handling procedure process flow diagram includes as shown in Figure 4 as the next stage:
(1) stage of calculating sampling data variation rate.Promptly calculate each continuous difference in the original sampling data at 2, represent original sampling data as a among Fig. 1, b represents the rate of change of the original sampling data that calculates.
(2) rate of change is carried out stage of integration.Promptly the difference between 2 o'clock is carried out integration.The method of integration is to difference summations all between 2 o'clock.
(3) integral result is judged, found out the stage of decorative pattern starting point.When integrated value judges that at first whether integrated value is less than setting value greater than zero the time, be then to turn back to for the 2nd stage, again rate of change is carried out integration, otherwise, continue to judge that whether maximum rate of change is less than setting value, be then to turn back to for the 2nd stage again rate of change to be carried out integration, otherwise, set this point and be starting point.
(4) rate of change is carried out once more stage of integration;
(5) result of integration is once more judged, find out the stage of the terminating point of decorative pattern; When integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to turn back to for the 2nd stage again rate of change to be carried out integration, otherwise, continue to judge that whether maximum rate of change is less than setting value, be then to turn back to for the 2nd stage again rate of change to be carried out integration, otherwise setting this point is terminating point.Include integrated value greater than zero judgement with to the minus judgement of integrated value.
As shown in Figure 2, the data of dash area explanation between these 2 are in the monotone variation state among Fig. 2, and rate of change is bigger.If integrated value shows that greater than zero numerical value is in rising trend between these 2, be equivalent to the first half of decorative pattern, otherwise show that numerical value is on a declining curve, be equivalent to the latter half of decorative pattern.
(6) all starting points and the data between the terminating point being carried out stage of linear difference, is that the following linear equation of The data between 2 o'clock is calculated:
Yi＝Y0+(Xi-X0)*(Y1-Y0)/(X1-X0)
Wherein: X0, Y0 are starting point coordinate, and X1, Y1 are the terminating point coordinate, and Yi, Xi are any coordinate of any between starting point and the terminating point.Thereby elimination decorative pattern.
7, the data call groove handling procedure of the tire tread that sampling filter is obtained calculates the value of beating; This groove handling procedure process flow diagram includes as shown in Figure 5 as the next stage:
(1) stage of calculating sampling data variation rate, promptly calculates each continuous difference in the original sampling data at 2.
(2) rate of change is carried out stage of integration.Promptly the difference between 2 o'clock is carried out integration.The method of integration is to difference summations all between 2 o'clock.
(3) integral result is judged, found out the stage of groove starting point.When integrated value greater than zero the time, whether at first judge integrated value less than setting value, be then to return again rate of change is carried out integration, otherwise, whether judge maximum rate of change less than setting value, be then to return again rate of change is carried out integration, otherwise, set this point and be starting point;
(4) rate of change is carried out once more stage of integration;
(5) result of integration is once more judged, find out the stage of the terminating point of groove.When integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to return again rate of change is carried out integration, otherwise, judge that whether maximum rate of change is less than setting value, be then to return the stage of for the first time rate of change being carried out integration, again rate of change is carried out integration, otherwise setting this point is terminating point.
(6) deposit all starting points and terminating point in array, and it is traveled through, promptly all data all travel through till one time in to array;
(7) judged whether bimodal situation, had and then return the quadravalence section, otherwise carry out next step; To bimodal judgement is at first to judge if two adjacent groups starting point and terminating point, and the starting point that the back is a group is separated by less than preset value with last group terminating point, be bimodal, this moment will be afterwards one group terminating point as last group terminating point, can eliminate bimodal.
(8) final starting point and the data between the terminating point being carried out stage of linear interpolation, is that the following linear equation of The data between 2 o'clock is calculated:
Yi＝Y0+(Xi-X0)*(Y1-Y0)/(X1-X0)
Wherein: X0, Y0 are starting point coordinate, and X1, Y1 are the terminating point coordinate, and Yi, Xi are any coordinate of any between starting point and the terminating point.Thereby elimination decorative pattern.
As shown in Figure 3, ordinate is represented the data behind the bandpass filtering, and the final data that the representative of the line of ordinate end is crossed through the groove disposal methods.Can see, eliminate the influence of groove after treatment fully.
8, stop the dynamic balancing machine rotation, laser displacement sensor is got back to zero-bit, and output bleeds a tire.When starting point and the data between the terminating point to tire side and tire tread are carried out linear interpolation, after calculating the value of beating really, main shaft stops the rotation, laser displacement sensor is got back to zero-bit, bleeds a tire upper chuck locking, lower chuck unclamps, upper spider is got back to initial point, and lifting table rises, and travelling belt starts sends into the output station to tire.Output station output cylinder is regained, and after tire fell, the output cylinder stretched out release.
Claims (10)
1. a measurement processing method for tire jumping range is characterized in that, includes:
(1) tire is installed on the dynamic balancing machine main shaft inflation and keep stable;
(2) start the dynamic balancing machine main shaft, make tire with its speed rotation with 60rpm;
(3) laser displacement sensor puts in place and opens light source;
(4) call sampling routine and obtain the sampled data file;
(5) adopt the low order band-pass filtering method to carry out Filtering Processing to sampled data, eliminate undesired signal, and filtered data are deposited in the data file;
(6) the tire sidewall data call decorative pattern letter handling procedure that sampling filter is obtained calculates the value of beating;
(7) the data call groove handling procedure of the tire tread that sampling filter is obtained calculates the value of beating;
(8) stop the dynamic balancing machine rotation, laser displacement sensor is got back to zero-bit, and output bleeds a tire.
2. measurement processing method for tire jumping range according to claim 1 is characterized in that, the described tire sidewall data call decorative pattern letter handling procedure that sampling filter is obtained calculates the value of beating, and includes as the next stage:
(1) stage of calculating sampling data variation rate;
(2) rate of change is carried out stage of integration;
(3) integral result is judged, found out the stage of decorative pattern starting point;
(4) rate of change is carried out once more stage of integration;
(5) integral result is judged, found out the stage of the terminating point of decorative pattern;
(6) all starting points and the data between the terminating point are carried out stage of linear difference.
3. measurement processing method for tire jumping range according to claim 2, it is characterized in that, described integral result is judged, found out the starting point of decorative pattern and the stage of terminating point, include integrated value greater than zero judgement with to the minus judgement of integrated value.
4. measurement processing method for tire jumping range according to claim 3, it is characterized in that, when the integrated value of for the first time rate of change being carried out integration greater than zero the time, whether at first judging integrated value less than setting value, is then to return again rate of change is carried out integration, otherwise, judge that whether maximum rate of change is less than setting value, be then to return again rate of change is carried out integration, otherwise, set this point and be starting point; For the second time rate of change is carried out integration, when integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to return again rate of change is carried out integration, otherwise, whether judging maximum rate of change less than setting value, is then to return the stage of for the first time rate of change being carried out integration, again rate of change is carried out integration, otherwise setting this point is terminating point.
5. measurement processing method for tire jumping range according to claim 2, it is characterized in that, described all starting points and the data between the terminating point being carried out linear difference, is that the following linear equation of The data between its 2 is calculated: Yi=Y0+ (Xi-X0) * (Y1-Y0)/(X1-X0).
6. measurement processing method for tire jumping range according to claim 1 is characterized in that, the described tire tread data call groove handling procedure that sampling filter is obtained calculates the value of beating, and includes as the next stage:
(1) stage of calculating sampling data variation rate;
(2) rate of change is carried out stage of integration;
(3) integral result is judged, found out the stage of groove starting point;
(4) rate of change is carried out once more stage of integration;
(5) integral result is judged, found out the stage of the terminating point of groove;
(6) deposit all starting points and terminating point in array, and it is traveled through;
(7) judged whether bimodal situation, had and then return the quadravalence section, otherwise carry out next step;
(8) final starting point and the data between the terminating point are carried out stage of linear difference.
7. measurement processing method for tire jumping range according to claim 6, it is characterized in that, described integral result is judged, found out the starting point of groove and the stage of terminating point, include integrated value greater than zero judgement with to the minus judgement of integrated value.
8. measurement processing method for tire jumping range according to claim 7, it is characterized in that, when the integrated value of for the first time rate of change being carried out integration greater than zero the time, whether at first judging integrated value less than setting value, is then to return again rate of change is carried out integration, otherwise, judge that whether maximum rate of change is less than setting value, be then to return again rate of change is carried out integration, otherwise, set this point and be starting point; For the second time rate of change is carried out integration, when integrated value judges that at first whether integrated value is less than setting value less than zero the time, be then to return again rate of change is carried out integration, otherwise, whether judging maximum rate of change less than setting value, is then to return the stage of for the first time rate of change being carried out integration, again rate of change is carried out integration, otherwise setting this point is terminating point.
9. measurement processing method for tire jumping range according to claim 6, it is characterized in that, describedly deposit all starting points and terminating point in array, and it is traveled through, having judged whether bimodal situation, its criterion is: adjacent two groups of starting points and terminating point, starting point that the back is one group and last group terminating point are separated by less than preset value, be bimodal, this moment will the back one group terminating point as last group terminating point, can eliminate bimodal.
10. measurement processing method for tire jumping range according to claim 6, it is characterized in that, described thereby all starting points and the data between the terminating point are carried out the influence that linear difference is eliminated groove, the following linear equation of the The data between its 2 calculates:
Yi＝Y0+(Xi-X0)*(Y1-Y0)/(X1-X0)。
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| CNB2006101292233A CN100552408C (en) | 2006-11-06 | 2006-11-06 | Measurement processing method for tire jumping range |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817236A (en) * | 2010-04-10 | 2010-09-01 | 成山集团有限公司 | Method for measuring and processing radius run-out degree of unvulcanized tire |
| CN104990503A (en) * | 2015-07-16 | 2015-10-21 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel external circle run-out detection method based on laser displacement sensor |
| CN105136077A (en) * | 2015-06-06 | 2015-12-09 | 合肥明华机电工程有限公司 | Beating capacity and dynamic balancing tester |
| CN111397565A (en) * | 2020-03-05 | 2020-07-10 | 湖北隐冠轴业有限公司 | Automobile hub shaft roundness detection and trimming device and using method thereof |
| CN111707163A (en) * | 2020-07-01 | 2020-09-25 | 丽水市知源科技有限公司 | Wheel rim circular runout grouping detection device and use method |
| CN114720160A (en) * | 2022-06-02 | 2022-07-08 | 山东金宇轮胎有限公司 | Method for testing embryo jumping degree |
| CN116429322A (en) * | 2023-06-15 | 2023-07-14 | 广州标动轨道装备有限公司 | Dynamic balance detector for high-speed railway wheels |
-
2006
- 2006-11-06 CN CNB2006101292233A patent/CN100552408C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817236A (en) * | 2010-04-10 | 2010-09-01 | 成山集团有限公司 | Method for measuring and processing radius run-out degree of unvulcanized tire |
| CN101817236B (en) * | 2010-04-10 | 2012-12-19 | 成山集团有限公司 | Method for measuring and processing radius run-out degree of unvulcanized tire |
| CN105136077A (en) * | 2015-06-06 | 2015-12-09 | 合肥明华机电工程有限公司 | Beating capacity and dynamic balancing tester |
| CN104990503A (en) * | 2015-07-16 | 2015-10-21 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel external circle run-out detection method based on laser displacement sensor |
| CN104990503B (en) * | 2015-07-16 | 2018-04-20 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel cylindrical glitch detection method based on laser displacement sensor |
| CN111397565A (en) * | 2020-03-05 | 2020-07-10 | 湖北隐冠轴业有限公司 | Automobile hub shaft roundness detection and trimming device and using method thereof |
| CN111397565B (en) * | 2020-03-05 | 2022-03-22 | 湖北隐冠轴业有限公司 | Automobile hub shaft roundness detection and trimming device and using method thereof |
| CN111707163A (en) * | 2020-07-01 | 2020-09-25 | 丽水市知源科技有限公司 | Wheel rim circular runout grouping detection device and use method |
| CN114720160A (en) * | 2022-06-02 | 2022-07-08 | 山东金宇轮胎有限公司 | Method for testing embryo jumping degree |
| CN116429322A (en) * | 2023-06-15 | 2023-07-14 | 广州标动轨道装备有限公司 | Dynamic balance detector for high-speed railway wheels |
| CN116429322B (en) * | 2023-06-15 | 2023-08-11 | 广州标动轨道装备有限公司 | Dynamic balance detector for high-speed railway wheels |
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| CN100552408C (en) | 2009-10-21 |
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Assignee: Tianjin Saixiang Science & Technology Co., Ltd. Assignor: Zhang Zhiquan Contract record no.: 2011120000240 Denomination of invention: Measurement processing method for tire jumping range Granted publication date: 20091021 License type: Exclusive License Open date: 20080514 Record date: 20111101 |
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