CN1673711A - Method for measuring unbalance amount of mainshaft system - Google Patents
Method for measuring unbalance amount of mainshaft system Download PDFInfo
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- CN1673711A CN1673711A CN 200410023844 CN200410023844A CN1673711A CN 1673711 A CN1673711 A CN 1673711A CN 200410023844 CN200410023844 CN 200410023844 CN 200410023844 A CN200410023844 A CN 200410023844A CN 1673711 A CN1673711 A CN 1673711A
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- 238000000034 method Methods 0.000 title claims description 34
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 5
- 238000012937 correction Methods 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000009795 derivation Methods 0.000 description 2
- DOSMHBDKKKMIEF-UHFFFAOYSA-N 2-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]-5-[3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propylsulfamoyl]benzenesulfonate Chemical compound C1=CC(=[N+](CC)CC)C=C2OC3=CC(N(CC)CC)=CC=C3C(C=3C(=CC(=CC=3)S(=O)(=O)NCCCN3C4=CC=CC=C4C(C=4C(NC(=O)C=4C=4C5=CC=CC=C5N(C)C=4)=O)=C3)S([O-])(=O)=O)=C21 DOSMHBDKKKMIEF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Abstract
The present invention is the measurement method of unbalance amount of main shaft system. During the measurement of main shaft system, the linear corresponding relation between the unbalance mass of the tyre and the unbalance couple amount between the upper and lower calibration planes of the dynamic balance machine is first determined, and several groups of paired unbalance values are then measured and the practical unbalance amount of the main shaft system is calculated.
Description
Technical field
The present invention relates to the measuring method of tire dynamic and balance axis system amount of unbalance.
Background technology
The quantity that present domestic unit and family buy automobile increases substantially, and has proposed requirements at the higher level for the quality standard in doughnut serviceable life.
Automobile tyre is the rotatable body of a kind of circular ring type of tubular section, and it is to be processed through applying, moulding, sulfuration typing by rubber preformed material, compounded rubber preformed material that multilayer has an all-steel cord.The tire of described structure, its constituent material exist skewness inevitably or mass centre does not overlap problems such as (so-called mass eccentricities) with the geometric center of tire, just the unbalance amount of tire of often saying.According to relevant mechanics principle, there is the to a certain degree tire of mass eccentricity, under the high speed rotating situation, must produce the radial force of alternation, thereby can cause the vibration or the noise of automobile, also can have influence on speed, comfort level or the smoothness of automobilism.If the amount of unbalance of tire is excessive, serious also can the damage car parts, even can cause traffic hazard.
For the detection of unbalance amount of tire, be a necessary and crucial flow process in the existing tire production.As application number is 02106779, the patent that is used for measuring wheel tyre uniformity and/or dynamically balanced equipment and method, its equipment comprises that one is rotatably supported in one by the main shaft in the main shaft housing of non-yielding prop, described tire is fixedly mounted on the described main shaft, when measurement was carried out, described main shaft was rotated; And at least one is installed in the piezoelectric force transducer on the described main shaft housing, and when described main shaft rotated, described at least one piezoelectric force transducer detected the power that tyre rotation produces.
Pick-up unit and the method disclosed as above-mentioned patent do not disclose and illustrate for the unbalanced size of axis system and how to measure and demarcate out.If the amount of unbalance for axis system itself is not demarcated, detect in any case improve the amount of unbalance of detected tyre, still can produce uncertain value and error.For correcting unbalance amount of tire, can only be to another kind of uneven from a kind of imbalance.
The measuring method of axis system amount of unbalance of the present invention, its purpose are intended to address the above problem the measuring method that provides the axis system amount of unbalance with deficiency.
Measuring method of the present invention, be to be based upon the corresponding linear relationship of in advance determining between tire unbanlence quality and the upper and lower rectifying plane out-of-balance force of dynamic balancer, promptly the dynamic balancer that comprises axis system calibrated the calibration coefficient of its amount of unbalance.
Measuring method of the present invention, when being installed on detected tyre on the axis system, can be repeatedly by 180 ° of rotation detected tyres, to record form the amount of unbalance measured value more.And these many group amount of unbalance measured values are axis system and the detected tyre amount of unbalance value of closing.
For same detected tyre, to the power that amount of unbalance produces, all have equal and opposite in direction, characteristic that direction is opposite by the many compositions that draw after 180 ° of rotations, promptly making a concerted effort is zero, just aggregate value is zero.
Remove by many combining abilities that above-mentioned detected tyre is produced, can obtain the amount of unbalance of axis system.
As long as with the measuring and calculating of the amount of unbalance of axis system and identify, just reach the purpose of using dynamic balancer arbitrary tire accurately to be measured unbalance amount of tire again.
Measuring method step of the present invention is:
The first step is got a standard tire and is placed on main measurement unit and is installed on the axis system, inflates;
By certain rotating speed rotary main shaft system, and the synthetic amount of unbalance that records axis system and detected tyre is M
0, stop the rotation, venting, last wheel rim rises;
Second the step, with tire on axis system, rotate 360 °/n (n=2,4,6 ..., n is for measuring number of times; Requiring n in theory is even number, practical application general n≤10); The operation of the repetition first step, last wheel rim descends, be installed tire and inflation, inner gas pressure remains unchanged; Obtain the synthetic amount of unbalance of axis system and detected tyre successively, until n time is measured;
The 3rd the step, with n time the measurement Mi as a result (i=0,1 ..., n-1) carry out vector and calculating, and remove n after the scale transformation.
The amount of unbalance of detected tyre is cancelled, and that then obtain is axis system amount of unbalance M, promptly
The measuring method of axis system amount of unbalance of the present invention need repeatedly be measured the uneven value of axis system and detected tyre, thereby the prerequisite that realizes described measuring method is the uneven value that will accurately calibrate axis system and produced.
This just needs detected tyre and axis system at the amount of unbalance that the dynamic balancer rectifying plane produces, and finally determines by rectifying plane out-of-balance force and calibration coefficient that actual measurement obtains.
Therefore, determining the calibration coefficient of dynamic balancer amount of unbalance, is the key issue that realizes axis system amount of unbalance measuring method of the present invention.
The calibration coefficient of described amount of unbalance is set at k1, k2, k3, k4, and its calibration system is to determine constantly, and no matter how the unbalance mass, (being set at m) of detected tyre changes.
So, can calculate above-mentioned calibration coefficient k1, k2, k3, k4 by selecting arbitrary detected tyre.Particularly:
Corresponding linear relationship between the first step, the centrifugal force of deriving upper and lower rectifying plane and force cell measured value.That is:
According to principle of moment balance, upper and lower rectifying plane asks the result of square to should be 0, thereby can set up detected tyre at centrifugal force F that last rectifying plane produced
s, respectively with the N of upper and lower force transducer measured value
s, N
xBetween the linear relationship expression formula; And the centrifugal force Fx that detected tyre is produced at following rectifying plane is respectively with the N of upper and lower force transducer measured value
s, N
xBetween the linear relationship expression formula.
Second step is by the centrifugal force F of the upper and lower rectifying plane generation of detected tyre
s, F
xCalculate tire eccentric mass m.
In the 3rd step,, establish the unbalance mass, m of the upper and lower rectifying plane of detected tyre by the eccentric m of tire quality
s, m
xAnd force transducer survey the linear relationship between the out-of-balance force N, (comprise N
s, N
x) between corresponding relation, i.e. calibration coefficient k1, k2, k3, k4.
As mentioned above, by calibration coefficient k1, k2, k3, k4, can determine detected tyre unbalance mass, m and force transducer survey the linear relationship between the out-of-balance force N.
Determine the numerical value of calibration coefficient k1, k2, k3, k4, can utilize the linear relationship between above-mentioned m and the N, by repeatedly last rectifying plane, down rectifying plane install additional certain mass, install the identical counterweight of angle additional, calculate with the actual out-of-balance force N that records of certain rotating speed.
Calibration coefficient k1, k2, k3, k4 numerical value is in case determine, can calculate and finally finishes its sign work at the amount of unbalance of axis system.
The measuring method of axis system amount of unbalance in sum can calculate the amount of unbalance that axis system itself is produced intuitively, thereby sets up a kind of tire unbanlence measuring method with benchmark.Be based upon on the above-mentioned axis system amount of unbalance measuring method, measured unbalance amount of tire is comparatively accurate, can realize pointed, never equilibrate to the tire correction operation of balance.
Description of drawings
Fig. 1 is the primary structure synoptic diagram of dynamic balance testing machine.
As shown in Figure 1, use axis system amount of unbalance measuring method of the present invention dynamic balancer, mainly include down wheel rim 1, last wheel rim 2, counterweight 3, last rectifying plane 4, tire 5, following rectifying plane 6, last wheel rim clamping body 7, last force transducer 8, main shaft supporting 9, following force transducer 10, rotary encoder 11.Wherein,
Ns goes up the force transducer measured value,
Nx is following force transducer measured value,
A is two distances between the force transducer,
B is the distance that upper sensor arrives down the wheel rim lower surface,
C is the tread width (operating distance between just upper and lower wheel rim) of tire,
R is the radius of upper and lower rectifying plane (wheel rim).
Embodiment
Embodiment 1, in conjunction with dynamic balancer structure shown in Figure 1, the measuring method of axis system amount of unbalance of the present invention, after determining and dynamic balancer be in place, select arbitrary detected tyre with eccentric mass m, at first set up calibration coefficient k and detected tyre unbalance mass, m and survey the linear mathematic(al) representation between the out-of-balance force N, its linear model derivation is:
The first step as shown in Figure 1, according to principle of moment balance, is asked square respectively to upper and lower rectifying plane, and calculates the centrifugal force that the upper and lower rectifying plane of detected tyre produces.
Promptly last rectifying plane is asked square, its result should be 0, i.e. ∑ Ms=0.Solve:
Wherein, F
xBe the centrifugal force that detected tyre decomposes down rectifying plane.
Again following rectifying plane is asked square, its result should be 0, i.e. ∑ Mx=0.Solve:
Wherein, F
sBe the centrifugal force that detected tyre decomposes rectifying plane.
Second step decomposed the centrifugal force of upper and lower rectifying plane by detected tyre, had:
F＝F
s+F
x (3)
Wherein, F is that eccentric mass m is the centrifugal force that r wheel rim place produces at radius.
Produce principle according to centrifugal force, can calculate the eccentric m of tire quality;
m＝F/rω
2 (4)
R is the radius of upper and lower correction,
ω is the angular velocity of tire rotation, is rotated counterclockwise moment for just, and right-handed moment is for bearing;
In the 3rd step,, establish the quality m that the detected tyre equivalence decomposes rectifying plane by tire eccentric mass m
s, m
xWith sensor survey out-of-balance force N
s, N
xBetween linear relationship, i.e. calibration coefficient k;
With above-mentioned equation (1), (2), (3), (4) formula simultaneous, set up the expression formula of following linear relationship
Wherein:
m
sBe the unbalance mass, that detected tyre decomposes rectifying plane,
m
xBe the unbalance mass, that detected tyre decomposes down rectifying plane,
K1, k2, k3, k4 are described scale transformation coefficient, i.e. calibration coefficient.
By aforesaid linear model derivation, calibration coefficient k1, k2, k3, k4 are to determine constantly for specific concrete dynamic balancer, and no matter how the unbalance mass, m of detected tyre changes.
Thereby, only need calculate calibration coefficient k1, k2, k3, k4, promptly the form of available numerical value gives expression to the unbalance mass, m of the upper and lower rectifying plane of detected tyre
s, m
x
Below be the idiographic flow of measuring and calculating calibration coefficient k1, k2, k3, k4:
The first step, the test value that detected tyre only is installed.
Detected tyre is installed between the upper and lower wheel rim, and selects a certain rotating speed to be rotated between 200-1000rpm, record the whole amount of unbalance of tire and axis system, the actual measurement of the corresponding upper and lower sensor of promptly whole amount of unbalance is N
S0, N
X0After recording above-mentioned measured value, promptly stop the rotation.
In second step, below colonel, add the test value behind the certain mass counterweight.
Add the counterweight that quality is m1 (being generally 50-200g) at last rectifying plane, the rotating speed of still going up step then is rotated, and records the tire and the whole amount of unbalance of axis system, i.e. the measured value N of corresponding upper and lower sensor that install additional behind the counterweight
Ss, N
Xs
After recording above-mentioned measured value, promptly stop the rotation.
According to aforesaid equation (5), can draw
4 unknown quantity k1, k2, k3, k4 are arranged in the above-mentioned expression formula, still can not calculate occurrence, thereby also need get one group of numerical value again.
The 3rd step, the test value after below following school, adding the certain mass counterweight.
Taking off quality from last rectifying plane is that the counterweight of m1 is added in down on the same angle of rectifying plane, and the employing rotating speed rotation identical with the last step, records the tire and the whole amount of unbalance of axis system, i.e. the measured value N of corresponding upper and lower sensor that install additional behind the counterweight
Sx, N
XxAfter recording above-mentioned measured value, promptly stop the rotation.
Based on same principle,, can draw according to equation (5)
In fact, N
S0, N
X0, N
Ss, N
Xs, N
Sx, N
Xx, m1 is given value, thereby can be with system of equations (6), (7) simultaneous,
If N
Ss-N
S0=T1, N
Xs-N
X0=T2, N
Sx-N
S0=T3, N
Xx-N
X0=T4, thus can solve:
Calibration coefficient k1, k2, k3, the k4 that tried to achieve this moment are actual measuring and calculating values.
Use above-mentioned dynamic balance testing machine, all can pass through equation (5) for arbitrary detected tyre, and according to calibration coefficient k1, k2, k3, k4, and upper and lower force transducer measured value N
s, N
x, finally determine the unbalance mass, m of the upper and lower rectifying plane of detected tyre
s, m
x
Use above-mentioned calibration coefficient k1, k2, k3, the k4 that calculates, can calculate the whole amount of unbalance that comprises axis system and detected tyre by following flow process.Its measuring process is:
The first step is got a standard tire and is placed on main measurement unit and is installed on the axis system, inflates;
By certain rotating speed rotary main shaft system, and the synthetic amount of unbalance that records axis system and detected tyre is M
0, stop the rotation, venting, last wheel rim rises;
Second the step, with tire on axis system, rotate 360 °/n (n=2,4,6 ..., n is for measuring number of times; Requiring n in theory is even number, practical application general n≤10); The operation of the repetition first step, last wheel rim descends, be installed tire and inflation, inner gas pressure remains unchanged; Obtain the synthetic amount of unbalance of axis system and detected tyre successively, until n time is measured;
The 3rd the step, with n time the measurement Mi as a result (i=0,1 ..., n-1) carry out vector and calculating, and remove n after the scale transformation.
The amount of unbalance of detected tyre is cancelled, and that then obtain is axis system amount of unbalance M, promptly
Claims (6)
1, a kind of measuring method of axis system amount of unbalance, it is applied on the dynamic balance test machine, it is characterized in that: described measuring method is to be based upon on the calibration coefficient basis of in advance determining between tire unbanlence quality and the upper and lower rectifying plane out-of-balance force of dynamic balancer;
Detected tyre is installed on the axis system and repeatedly by 180 ° of rotation detected tyres, with record form to amount of unbalance measured value Mi (i=0,1 ..., n-1);
After said n time measured value Mi being carried out vector and calculate, measure the amount of unbalance M of axis system by the amount of unbalance that balances out detected tyre.
2, the measuring method of axis system amount of unbalance according to claim 1 is characterized in that: the flow process of described measuring method is:
The first step is got a standard tire and is placed on main measurement unit and is installed on the axis system, inflates;
By certain rotating speed rotary main shaft system, and the synthetic amount of unbalance that records axis system and detected tyre is M
0, stop the rotation, venting, last wheel rim rises;
Second the step, with tire on axis system, rotate 360 °/n (n=2,4,6 ..., n for the measurement number of times; Requiring n in theory is even number, practical application general n≤10); The operation of the repetition first step, last wheel rim descends, be installed tire and inflation, inner gas pressure remains unchanged; Obtain the synthetic amount of unbalance of axis system and detected tyre successively, until n time is measured;
The 3rd step, with the Mi as a result that measures for n time (i=0,1 ..., n-1) carry out vector and calculating, and after the scale transformation except that n;
The amount of unbalance of detected tyre is cancelled, and that then obtain is axis system amount of unbalance M, promptly
3, the measuring method of axis system amount of unbalance according to claim 2 is characterized in that: in the described measuring method, need set up calibration coefficient k1, k2, k3, k4 between tire unbanlence quality and the dynamic balancer rectifying plane out-of-balance force; Calibration coefficient is definite constant for the tire of the identical same specification of dynamic balancer; For a certain dynamic balance test machine, (the upper and lower force transducer measured value N that comprises described dynamic balancer of the actual out-of-balance force N that records after detected tyre is installed to rectifying plane
s, N
x), and detected tyre unbalance mass, m (the unbalance mass, m that comprises the upper and lower rectifying plane of detected tyre
s, m
x), determine the concrete numerical value of calibration coefficient k1, k2, k3, k4.
4, the measuring method of axis system amount of unbalance according to claim 3, it is characterized in that: the measuring and calculating of described calibration coefficient comprises following two flow processs, promptly determine detected tyre unbalance mass, m and survey the linear relationship between the rectifying plane unbalanced couple amount N; And, use the linear relationship between above-mentioned m and the N, install the identical counterweight of certain mass and fixed angle respectively additional and the actual out-of-balance force N that records calculates the concrete numerical value of calibration coefficient k1, k2, k3, k4 with the rotation of identical rotating speed by upper and lower rectifying plane at described dynamic balance testing machine.
5, the measuring method of axis system amount of unbalance according to claim 4 is characterized in that: described definite detected tyre unbalance mass, m and survey to such an extent that the flow process of the linear relationship between the out-of-balance force N is:
The first step according to principle of moment balance, is asked square respectively to upper and lower rectifying plane, and calculates the centrifugal force that the upper and lower rectifying plane of detected tyre produces;
Promptly last rectifying plane is asked square, its result should be 0, i.e. ∑ Ms=0; Solve:
Wherein, F
xBe the centrifugal force that detected tyre decomposes down rectifying plane;
A is two distances between the force transducer,
B is the distance that upper sensor arrives down the wheel rim lower surface,
C is the tread width (operating distance between just upper and lower wheel rim) of tire;
Again following rectifying plane is asked square, its result should be 0, i.e. ∑ Mx=0; Solve:
Wherein, F
sBe the centrifugal force that detected tyre decomposes rectifying plane;
Second step decomposed the centrifugal force of upper and lower rectifying plane by detected tyre, had:
F＝F
s+F
x (3)
Wherein, F is that eccentric mass m is the centrifugal force that r wheel rim place produces at radius;
Produce principle according to centrifugal force, can calculate the eccentric m of tire quality;
m＝F/rω
2 (4)
R is the radius of upper and lower correction,
ω is the angular velocity of tire rotation, is rotated counterclockwise moment for just, and right-handed moment is for bearing;
In the 3rd step,, establish the quality m that the detected tyre equivalence decomposes rectifying plane by tire eccentric mass m
s, m
xWith sensor survey out-of-balance force N
s, N
xBetween linear relationship, i.e. calibration coefficient k;
With above-mentioned equation (1), (2), (3), (4) formula simultaneous, set up the expression formula of following linear relationship
Wherein:
m
sBe the unbalance mass, that detected tyre decomposes rectifying plane,
m
xBe the unbalance mass, that detected tyre decomposes down rectifying plane,
K1, k2, k3, k4 are described scale transformation coefficient, i.e. calibration coefficient.
6, the measuring method of axis system amount of unbalance according to claim 5 is characterized in that: the flow process of calculating calibration coefficient k1, k2, k3, k4 particularly is:
The first step, the test value that detected tyre only is installed;
Detected tyre is installed between the upper and lower wheel rim, and selects a certain rotating speed to be rotated between 200-1000rpm, record the whole amount of unbalance of tire and axis system, the actual measurement of the corresponding upper and lower sensor of promptly whole amount of unbalance is N
S0, N
X0After recording above-mentioned measured value, promptly stop the rotation;
In second step, below colonel, add the test value behind the certain mass counterweight;
Add the counterweight that quality is m1 (being generally 50-200g) at last rectifying plane, the rotating speed of still going up step then is rotated, and records the tire and the whole amount of unbalance of axis system, i.e. the measured value N of corresponding upper and lower sensor that install additional behind the counterweight
Ss, N
XsAfter recording above-mentioned measured value, promptly stop the rotation;
According to aforesaid equation (5), can draw
The 3rd step, the test value after below following school, adding the certain mass counterweight;
Taking off quality from last rectifying plane is that the counterweight of m1 is added in down rectifying plane, and the employing rotation identical with the last step, records the tire and the whole amount of unbalance of axis system, i.e. the measured value N of corresponding upper and lower sensor that install additional behind the counterweight
Sx, N
XxAfter recording above-mentioned measured value, promptly stop the rotation;
Based on same principle,, can draw according to equation (5)
In fact, N
S0, N
X0, N
Ss, N
Xs, N
Sx, N
Xx, m1 is given value, thereby can be with system of equations (6), (7) simultaneous,
If N
Ss-N
S0=T1, N
Xs-N
X0=T2, N
Sx-N
S0=T3, N
Xx-N
X0=T4, thus can solve:
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|---|---|---|---|
| CNB2004100238444A CN100462708C (en) | 2004-03-25 | 2004-03-25 | Method for measuring unbalance amount of mainshaft system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100238444A CN100462708C (en) | 2004-03-25 | 2004-03-25 | Method for measuring unbalance amount of mainshaft system |
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| Publication Number | Publication Date |
|---|---|
| CN1673711A true CN1673711A (en) | 2005-09-28 |
| CN100462708C CN100462708C (en) | 2009-02-18 |
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ID=35046387
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144756B (en) * | 2006-09-11 | 2010-04-14 | 青岛高校软控股份有限公司 | Calibration method for tyre uniformity test |
| CN104374522A (en) * | 2013-08-15 | 2015-02-25 | 赛希特有限公司 | Imbalance measurement machine |
| WO2015113434A1 (en) * | 2014-01-28 | 2015-08-06 | 郭卫建 | Method for determining unbalance amounts of rotor |
| CN105698990A (en) * | 2016-04-11 | 2016-06-22 | 广西玉柴机器股份有限公司 | Cam shaft driving moment calibrating device |
| CN106500913A (en) * | 2016-09-20 | 2017-03-15 | 北京工业大学 | A kind of tire dynamic and balance machine amount of unbalance measurement apparatus |
| CN107478384A (en) * | 2017-09-22 | 2017-12-15 | 青岛软控机电工程有限公司 | Green tire dynamic balance detecting device and its detection method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285240A (en) * | 1980-01-11 | 1981-08-25 | Fmc Corporation | Wheel unbalance measurement system and method |
| US4494400A (en) * | 1983-07-28 | 1985-01-22 | Fmc Corporation | Wheel balancer two plane calibration apparatus and method |
| US6658936B2 (en) * | 2001-03-08 | 2003-12-09 | Kokusai Keisokuki Kabushiki Kaisha | Apparatus and method for measuring uniformity and/or dynamic balance of tire |
-
2004
- 2004-03-25 CN CNB2004100238444A patent/CN100462708C/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144756B (en) * | 2006-09-11 | 2010-04-14 | 青岛高校软控股份有限公司 | Calibration method for tyre uniformity test |
| CN104374522A (en) * | 2013-08-15 | 2015-02-25 | 赛希特有限公司 | Imbalance measurement machine |
| CN104374522B (en) * | 2013-08-15 | 2019-06-04 | 赛希特有限公司 | Amount of unbalance measuring machine |
| WO2015113434A1 (en) * | 2014-01-28 | 2015-08-06 | 郭卫建 | Method for determining unbalance amounts of rotor |
| US10101235B2 (en) | 2014-01-28 | 2018-10-16 | Weijian GUO | Method to determine the unbalance of a rotor |
| CN105698990A (en) * | 2016-04-11 | 2016-06-22 | 广西玉柴机器股份有限公司 | Cam shaft driving moment calibrating device |
| CN106500913A (en) * | 2016-09-20 | 2017-03-15 | 北京工业大学 | A kind of tire dynamic and balance machine amount of unbalance measurement apparatus |
| CN107478384A (en) * | 2017-09-22 | 2017-12-15 | 青岛软控机电工程有限公司 | Green tire dynamic balance detecting device and its detection method |
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| Publication number | Publication date |
|---|---|
| CN100462708C (en) | 2009-02-18 |
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