CN105279358B - The initial residual amount of unbalance target setting method of power transmission shaft - Google Patents
The initial residual amount of unbalance target setting method of power transmission shaft Download PDFInfo
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- CN105279358B CN105279358B CN201410359543.2A CN201410359543A CN105279358B CN 105279358 B CN105279358 B CN 105279358B CN 201410359543 A CN201410359543 A CN 201410359543A CN 105279358 B CN105279358 B CN 105279358B
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- 238000005259 measurement Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
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Abstract
The present invention provides a kind of initial residual amount of unbalance target setting method of power transmission shaft, including step：A, initial phase dynamic balance calibration is carried out to one group of power transmission shaft；B, initial phase residual unbalance, is obtained；C, 180 degree upset phase residual unbalance, is obtained；D, vector method computing system amount of unbalance is utilized；E, the true residual unbalance, of initial phase and the upset true residual unbalance, of phase are calculated using vector method；F, setting initial phase allows residual unbalance, the Measure of Process Capability for corresponding to each initial phase and allowing residual unbalance, is calculated by process capability, corresponding initial phase allows residual unbalance, to be set as initial residual amount of unbalance index during by Measure of Process Capability closest to 1.67.This method has the theoretical foundation of science, on the basis of process capability obtains reliable authentication, more can accurately and reliably set the initial residual amount of unbalance index of power transmission shaft, improve Product Precision and production efficiency.
Description
Technical field
The present invention relates to rotor dynamic balancing technical field, refers to more particularly to a kind of initial residual amount of unbalance of power transmission shaft
Mark establishing method.
Background technology
The power transmission shaft of vehicle is needed before dispatching from the factory into action balance.Residual unbalance, after dynamic balancing influences whether to pass
Can vibration values and level of noise of the moving axis under actual condition reach criterion of acceptability.So the residual unbalance, of power transmission shaft should
Meet corresponding design specification requirement.For the power transmission shaft after dynamic balancing, residue is carried out to it using dynamic-balance measuring system
During the measurement of amount of unbalance, the residual unbalance, measured may disclosure satisfy that the requirement required in design specification is remaining uneven
Amount, but residual unbalance, is measured again after power transmission shaft is overturn into 180 degree, it is possible to it is unsatisfactory for requiring remaining uneven
Amount.
Due to the reason such as dynamic balancing equipment and clamp precision in measuring system, it is necessary to set initial residual amount of unbalance index
Come ensure power transmission shaft either initial phase still overturn 180 degree after upset phase, its residual unbalance, can reach
The requirement residual unbalance, required in design specification.But initial residual amount of unbalance setup measures are too high, and power transmission shaft is put down
Required precision of weighing is too high, although the frequency of upset repetition measurement can be reduced, can influence the efficiency of dynamic balance calibration；Initial residual
Amount of unbalance setup measures are too low, overturn the frequency increase of repetition measurement, but also can directly affect product quality.Therefore, power transmission shaft
The setting of initial unbalance figureofmerit be that the essence for improving power transmission shaft dynamic balance checking precision, efficiency and product quality is arranged
Apply.
It is rule of thumb formula that the determination initial residual amount of unbalance generally used in the prior art, which refers to calibration method, i.e.,：
The residual unbalance, of the design specification requirement of initial residual amount of unbalance index=2/3.The shortcomings that this method, is that it is only
Empirical equation, lack scientific basis.In the case of not high to power transmission shaft quality requirement, use above-mentioned empirical equation substantially can be with
Meet required precision.But for the power transmission shaft of high-precision requirement residual unbalance, obtained using empirical equation initial surplus
Remaining amount of unbalance achievement data is then not accurate enough, it is difficult to meets required precision, and then can influence the precision of product, quality or even produce
Amount.Therefore, it is necessary to find optimal initial residual amount of unbalance index on the premise of dynamic balancing quality is ensured.
The content of the invention
In view of the above the shortcomings that prior art, the technical problem to be solved in the present invention is that providing one kind has science
Theoretical foundation, high-precision requirement can be met, power transmission shaft quality and production efficiency is favorably improved, is more accurately and reliably driven
Axle initial residual amount of unbalance target setting method.
In order to achieve the above objects and other related objects, the present invention provides a kind of initial residual amount of unbalance of power transmission shaft and referred to
Mark establishing method, including step：
A, the dynamic balance calibration of initial phase is carried out to one group of power transmission shaft, the power transmission shaft turns into correction power transmission shaft；
B, the dynamic balancing measurement of initial phase is carried out to the correction power transmission shaft with dynamic-balance measuring system, obtains initial phase
Position residual unbalance,；
C, the dynamic balancing measurement of 180 degree upset phase is carried out to the correction power transmission shaft with the dynamic-balance measuring system,
Obtain upset phase residual unbalance,；
D, according to the initial phase residual unbalance, and the upset phase residual unbalance, vector method meter is utilized
Calculate the system amount of unbalance of the dynamic-balance measuring system；The initial phase residual unbalance, the upset phase are remaining
Amount of unbalance and the system amount of unbalance are vector；
E, it is uneven according to the initial phase residual unbalance, the upset phase residual unbalance, and the system
Weigh, initial phase true residual unbalance, of the correction power transmission shaft corresponding to the initial phase is calculated using vector method
With the true residual unbalance, of upset phase that phase is overturn corresponding to the 180 degree；The initial phase is true remaining uneven
Weigh and the upset true residual unbalance, of phase is vector；
F, according to the requirement residual unbalance, to the power transmission shaft, setting one group of initial phase allows remaining imbalance
Amount；Residual unbalance, is allowed according to each initial phase, utilizes the true residual unbalance, of the initial phase and upset phase
The true residual unbalance, in position, calculate to obtain by process capability allows residual unbalance, corresponding to each initial phase
Measure of Process Capability, corresponding initial phase allows residual unbalance, during by the Measure of Process Capability closest to 1.67
It is set as the initial residual amount of unbalance index.
Preferably, the number of power transmission shaft described in one group is more than or equal to 50.
Preferably, in the step D, the system amount of unbalance of the dynamic-balance measuring system is calculated using the vector method
Calculating formula be：System amount of unbalance=1/2 (initial phase residual unbalance,+upset phase residual unbalance).
Preferably, in the step E, the meter of the true residual unbalance, of initial phase is calculated using the vector method
Formula is：The true residual unbalance, of initial phase=initial phase residual unbalance,-system amount of unbalance；
Calculating the calculating formula for overturning the true residual unbalance, of phase using the vector method is：It is true to overturn phase
Residual unbalance,=upset phase residual unbalance,-system amount of unbalance.
Preferably, in the step F, the initial phase of setting allows residual unbalance, to require residue not with described
Aequum requires residual unbalance, in same accuracy class, and less than described.
As described above, the power transmission shaft initial residual amount of unbalance target setting method of the present invention, has the advantages that：
Not against empirical equation, but vector method is combined with process capability computational methods, there is the theoretical foundation of science, Neng Gouzhun
The really power transmission shaft of analysis high-precision requirement, the initial residual amount of unbalance index of power transmission shaft is more accurately and reliably set；Due to
Power transmission shaft is considered simultaneously during survey calculation in initial phase and the amount of unbalance of 180 degree upset phase, therefore in work
On the basis of Process capabi l i ty 32 obtains reliable authentication, the frequency of power transmission shaft upset repetition measurement can be effectively reduced, while improves Product Precision
And production efficiency.
Brief description of the drawings
Fig. 1 is shown as the step flow chart of the initial residual amount of unbalance target setting method of the power transmission shaft of the present invention.
Fig. 2 is shown as system amount of unbalance in the initial residual amount of unbalance target setting method of the power transmission shaft of the present invention
Vector meter nomogram.
Fig. 3 is shown as initial phase in the initial residual amount of unbalance target setting method of the power transmission shaft of the present invention and truly remained
The vector meter nomogram of remaining amount of unbalance and the upset true residual unbalance, of phase.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
Fig. 1 is referred to Fig. 3.It should be noted that the diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, the component relevant with the present invention is only shown in schema then rather than according to package count during actual implement
Mesh, shape and size are drawn, and kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its
Assembly layout kenel may also be increasingly complex.
The initial residual amount of unbalance target setting method of power transmission shaft provided by the invention, comprises the following steps：
S101, the dynamic balance calibration that initial phase is carried out to one group of power transmission shaft.After dynamic balance calibration, power transmission shaft turns into school
Main story moving axis.This group of power transmission shaft is same specification, is more than or equal to 50 as sampling sample, the number of power transmission shaft with this group of power transmission shaft
Root, i.e. sample number are more than or equal to 50.
S102, with dynamic-balance measuring system carries out the dynamic balancing measurement of initial phase, acquisition initial phase to correction power transmission shaft
Position residual unbalance,.
S103, the clamping workpiece upset 180 degree by dynamic-balance measuring system, make power transmission shaft positioned at upset phase, to correction
Power transmission shaft carries out dynamic balancing measurement again, obtains the upset phase residual unbalance, of correction power transmission shaft.
For step S101 to S103, dynamically balanced dynamic balancing machine is carried out to this group of power transmission shaft, carries out dynamic balancing measurement
Dynamic-balance measuring system, dynamic balance method and balancing measuring method all keep constant.
S104, according to the initial phase residual unbalance, that is obtained in above-mentioned steps and upset phase residual unbalance,
The system amount of unbalance of dynamic-balance measuring system is calculated using vector method.
Above-mentioned initial phase residual unbalance, upset phase residual unbalance, and system amount of unbalance are vector.
The calculating formula of system amount of unbalance that dynamic-balance measuring system is calculated using vector method is：
System amount of unbalance=1/2 (initial phase residual unbalance,+upset phase residual unbalance).With calculating formula
Corresponding vector meter nomogram refers to Fig. 2.
S105, according to obtained in above-mentioned steps initial phase residual unbalance, upset phase residual unbalance, and
System amount of unbalance, continue with the true remaining injustice of initial phase that vector method calculating correction power transmission shaft corresponds to initial phase
Weigh and overturn corresponding to 180 degree the true residual unbalance, of upset phase of phase.The true residual unbalance, of initial phase
Also it is vector with the upset true residual unbalance, of phase.
Using vector method calculate the true residual unbalance, of initial phase calculating formula be：
The true residual unbalance, of initial phase=initial phase residual unbalance,-system amount of unbalance.
Using vector method calculate upset the true residual unbalance, of phase calculating formula be：
Overturn the true residual unbalance, of phase=upset phase residual unbalance,-system amount of unbalance.
Vector meter nomogram corresponding with the calculating formula of the two true residual unbalance,s refers to Fig. 3.
S106, according to the requirement residual unbalance, in design specification to power transmission shaft, one group of initial phase of setting allows to remain
Remaining amount of unbalance.The initial phase of setting allows residual unbalance, should with the requirement residual unbalance, required in design specification
Residual unbalance, is required in same accuracy class, and less than this.
Residual unbalance, is allowed according to each initial phase of setting, utilizes all initial phases obtained in abovementioned steps
The true residual unbalance, in position and the upset true residual unbalance, of phase, are calculated by process capability and obtained and each initial phase
Position allows the corresponding Measure of Process Capability of residual unbalance, will calculate the Measure of Process Capability of gained closest to 1.67 whens institute
Corresponding initial phase allows residual unbalance, to be set as initial residual amount of unbalance index.
Measure of Process Capability with CPK (Complex Process Capability Index, complex process Capability index,
It is abbreviated as CPK) expression, also referred to as process capability index, process capability index etc., refer to that process capability meets product technology requirement
Degree.Process refers to the production process of product quality.Product quality is exactly each qualitative factor role in process
General performance.For any production process, product quality always dispersedly there is.If process capability is higher, product quality
The dispersiveness of characteristic value will be smaller；If process capability is lower, the dispersiveness of product quality characteristics value will be bigger.CPK's
Rating scale has：CPK >=2.0, special top grade；2.0>CPK >=1.67, top grade；1.67>CPK >=1.33, good grade；Etc..CPK's
Value is bigger, and expression product quality is better.
It is complex in process capability calculating because the amount of unbalance of power transmission shaft is vector, but correlation can be used
CPK software for calculation, inputting the initial phase of setting allows residual unbalance, the sample value (initial phase of i.e. this group power transmission shaft
True residual unbalance, and the upset true residual unbalance, of phase) and some related arranges values, it is possible to obtain with being somebody's turn to do
Initial phase allows the corresponding CPK values of residual unbalance,.
In the present invention by CPK values closest to 1.67 when corresponding initial phase allow residual unbalance, to be set as initially
Residual unbalance, index, also illustrate under the initial residual amount of unbalance index, the quality assurance of power transmission shaft is in top grade.
The unit of amount of unbalance is gmm.Such as certain power transmission shaft, it requires that residual unbalance, is 85gmm, according to existing
There is the empirical equation in technology, it should which it is 56gmm to set initial residual amount of unbalance index, and passes through the process capability of the present invention
Calculate and understand to ensure quality of the power transmission shaft under high-precision requirement, it is necessary to be by initial residual amount of unbalance setup measures
40gmm could meet to require.Above-mentioned numerical value is the modulus of vector value.
In summary, power transmission shaft initial residual amount of unbalance target setting method provided by the invention, is no longer rely on experience
Formula, but vector method is combined with process capability computational methods, there is the theoretical foundation of science, can accurately analyze high-precision
Desired power transmission shaft is spent, the initial residual amount of unbalance index of power transmission shaft is more accurately and reliably set；Due in survey calculation
During consider power transmission shaft simultaneously in initial phase and the amount of unbalance of 180 degree upset phase, therefore obtained in process capability
On the basis of reliable authentication, the frequency of power transmission shaft upset repetition measurement can be effectively reduced, while improves Product Precision and production efficiency.
So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (5)
1. a kind of initial residual amount of unbalance target setting method of power transmission shaft, it is characterised in that including step：
A, the dynamic balance calibration of initial phase is carried out to one group of power transmission shaft, the power transmission shaft turns into correction power transmission shaft；
B, the dynamic balancing measurement of initial phase is carried out to the correction power transmission shaft with dynamic-balance measuring system, initial phase is obtained and remains
Remaining amount of unbalance；
C, the dynamic balancing measurement of 180 degree upset phase is carried out to the correction power transmission shaft with the dynamic-balance measuring system, is obtained
Overturn phase residual unbalance,；
D, according to the initial phase residual unbalance, and the upset phase residual unbalance, institute is calculated using vector method
State the system amount of unbalance of dynamic-balance measuring system；The initial phase residual unbalance, the upset phase are remaining uneven
Weigh and the system amount of unbalance is vector；
E, it is uneven according to the initial phase residual unbalance, the upset phase residual unbalance, and the system
Amount, using vector method calculate it is described correction power transmission shaft correspond to the initial phase the true residual unbalance, of initial phase and
Corresponding to the true residual unbalance, of upset phase of 180 degree upset phase；The initial phase is true remaining uneven
Amount and the upset true residual unbalance, of phase are vector；
F, according to the requirement residual unbalance, to the power transmission shaft, setting one group of initial phase allows residual unbalance,；Root
Allow residual unbalance, according to each initial phase, it is true using the true residual unbalance, of the initial phase and upset phase
Residual unbalance, the process for obtaining and corresponding to each initial phase permission residual unbalance, is calculated by process capability
Capability index, corresponding initial phase allows residual unbalance, to be set as during by the Measure of Process Capability closest to 1.67
The initial residual amount of unbalance index.
2. the initial residual amount of unbalance target setting method of power transmission shaft according to claim 1, it is characterised in that：One group
The number of the power transmission shaft is more than or equal to 50.
3. the initial residual amount of unbalance target setting method of power transmission shaft according to claim 1, it is characterised in that：It is described
In step D, the calculating formula that the system amount of unbalance of the dynamic-balance measuring system is calculated using the vector method is：
System amount of unbalance=1/2 (initial phase residual unbalance,+upset phase residual unbalance).
4. the initial residual amount of unbalance target setting method of power transmission shaft according to claim 1, it is characterised in that：It is described
In step E, the calculating formula that the true residual unbalance, of initial phase is calculated using the vector method is：
The true residual unbalance, of initial phase=initial phase residual unbalance,-system amount of unbalance；
Calculating the calculating formula for overturning the true residual unbalance, of phase using the vector method is：
Overturn the true residual unbalance, of phase=upset phase residual unbalance,-system amount of unbalance.
5. the initial residual amount of unbalance target setting method of power transmission shaft according to claim 1, it is characterised in that：It is described
In step F, the initial phase of setting allows residual unbalance, to require residual unbalance, in same precision with described
Grade, and require residual unbalance, less than described.
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| CN201410359543.2A CN105279358B (en) | 2014-07-25 | 2014-07-25 | The initial residual amount of unbalance target setting method of power transmission shaft |
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| CN1573160A (en) * | 2003-05-15 | 2005-02-02 | 达纳公司 | System and method for balancing a driveline system |
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| JPS53136174A (en) * | 1977-05-04 | 1978-11-28 | Hitachi Ltd | Dynamic balance method and device of rotating body |
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| CN1635353A (en) * | 2003-12-30 | 2005-07-06 | 丰田自动车株式会社 | Unbalance measurement method and device for long shaft rotator |
| CN101937212A (en) * | 2009-07-03 | 2011-01-05 | 中芯国际集成电路制造(上海)有限公司 | Process detection method and device |
| JP5546303B2 (en) * | 2010-03-19 | 2014-07-09 | 株式会社神戸製鋼所 | Dynamic balance measuring device |
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