JP2961318B2 - Method for determining unbalance correction value and apparatus for implementing the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for compensating for the unbalance of a rotor (test piece) in a balancing test, in which a correction value in at least one correction surface is corrected. A method for determining and an apparatus for performing the method. In the method according to the invention, the unbalance is a balance tester,
It is measured in relation to at least one reference plane that does not correspond to any correction plane.

[Prior art] In order to measure the unbalance of a rotating body,
Generally, the rotating body is mounted on a balancing test machine and rotated. If the rotating body has an unbalance, the influence of the unbalance is detected by a measurement value detector attached to the bearing of the balancing tester, for example, by a vibration conversion device, and the unbalance is detected. Process so that the correction surface can be corrected by a known method. For this purpose, unbalance measurements obtained on the measurement plane or the reference plane are usually distributed to each correction plane using a measurement circuit. At this time, consideration is made in advance, for example, by closing a circuit, so that the unbalance information that originally exists in each correction surface does not affect the unbalance that is to be distributed from now on, thereby canceling the unbalance information. The unbalance can be corrected at each correction surface such that the effects of the unbalance can no longer be measured with the vibration transducer. However, such an ideal correction requires a long time and a great deal of effort.

For this reason, the unbalance of the rotating body is generally corrected only until a predetermined residual unbalance value is achieved on each correction surface. The magnitude of an acceptable residual unbalance is, for example, VDI2
You can quote from 060. How the value of the allowable residual unbalance, which can be quoted from this VDI, is distributed to each correction plane depends, inter alia, on the shape of the rotating body. In addition, a proportionate distribution based on the bearing load caused by the measured unbalance, for example, the bearing load caused by the unbalance in the same or opposite direction, is also a factor. It may be a way of. In addition, distribution may be based on sectoral forms, empirical values or special agreements.

After correcting the unbalance in each correction surface, the inspection operation is performed. If the residual unbalance is within predetermined tolerance limits for each correction plane, the rotating body is considered to be in a balanced state.

However, it is not always possible to economically perform a link test using the method of determining the allowable residual unbalance value for each corrected surface. Because the residual unbalance found in the reference plane-e.g. depending on the initial unbalance, the position of the reference plane, the position of the correction plane, and the shape of the rotator-is corrected in view of the required balance of the rotator. May be below the allowable residual unbalance value given to the reference plane.

[Problems to be Solved by the Invention] The present invention is based on the above problems, and the basis of the present invention is to perform a balance test of a rotating body for correction on each correction surface, It is an object of the invention to be able to carry out the process with as little expense as possible, while at the same time adhering to tolerance limits determined by the tolerance residual unbalance in the reference plane.

Means for Solving the Problems The present invention solves the above problem by determining an allowable residual unbalance value in at least one reference plane, and determining the unbalance measured in at least one reference plane by the reference plane. And if the measured unbalance is greater than the allowable residual unbalance value, it requires as little as possible total compensation and / or as few as possible correction steps. What
The solution is to provide a correction value for at least one correction plane for compensation.

Furthermore, in order to carry out the above method, it is first checked whether or not compensation for the imbalance is necessary by using a comparator for comparing the unbalance obtained by the analyzer with the allowable residual unbalance, and the compensation is necessary. If so, the unbalanced signal is supplied to the signal processing circuit. In this signal processing circuit, whether the signal is within an allowable range determined by the allowable residual unbalance,
Alternatively, a correction value equivalent to the residual unbalance that coincides with the upper limit is obtained in at least one correction surface, and a plurality of possible correction values are stored and set in advance in the selector. The problem is solved by configuring one of them to be selected based on the criteria to be obtained.

Example Next, an example will be described with reference to the drawings.

In the drawings, the same reference numerals are used for components having the corresponding functions.

Hereinafter, a rotor having two reference planes and two correction planes will be described. In FIG. 1, a measurement signal (MS) emitted from a vibration transducer provided on both reference surfaces of a rotor rotatably supported by a balancing test machine is supplied to an analyzer 1. Generally, the support surface of the rotor is selected as the reference surface. The analyzer 1 further includes a reference signal (RS) that is generated once every one rotation of the rotor and in synchronization with the rotation.
Is supplied via the conducting wire 30. The reference signal (RS)
For example, it can be obtained by scanning a specific portion of the rotor. In the analyzer 1, a signal is generated from the measurement signal and the reference signal by a known method, for example, by a power meter method.
The signal is a signal which represents the unbalance present on the bearing surface, for example in the form of a vector, ie in the form of components which form an angle of 90 ° with each other. In this case, in some cases, a vector signal representing the unbalance by an angle and a quantity may be used in a known manner.

The output signal of the analyzer 1 is supplied to the comparator 10 via the conductor 32. The allowable residual unbalance value on the reference plane, ie, the unbalance allowable limit, is stored in, for example, a storage device (not shown), and is supplied to the input terminal 29 of the comparator 10. The unbalance existing on the reference plane is compared with the allowable residual unbalance value described above. If the former is not greater than the latter, the rotor is considered balanced. That no correction is needed,
For example, it is displayed by the device 11 connected to the comparator 10. If the unbalance present on at least one of the two reference planes is greater than the allowable residual unbalance on the reference plane, the output signal of the analyzer 1 is transferred to the signal processing device 2. In the signal processing device 2, the input circuit 33
Is converted into a correction value (for example, components forming an angle of 90 ° with each other). The information appearing in the input circuit 33 takes into account the specific geometric data about the rotor, or the specific geometric data about the system when the rotor and the balance tester are viewed as one system, For example, it is written in a storage device in advance. The correction resulting from the conversion in the signal processor represents the unbalance correction in the correction or compensation plane required to remove the unbalance from the rotor. The output signal of the signal processing device--both components of the respective correction value for both correction surfaces--is supplied to the device 3 by means of a conductor 34. In the device 3, the correction value is changed. Component correction value of one of the balancing plane I, for example, in 90 degrees Force Method Χ axis component K _x, Y-axis component K _y is input to the apparatus 3, each several correction values n for each of the components, m But also the minimum of each
I _l , I _l and step values △ K _x , △ K _y are determined and prepared, and these data are input to the device 3 as control signals. Thereby, in the device 3, the K-axis component K _x is K _x I _{1
(I = l .... n, △} K x = [I (i + l)] - [I i]) and the Y-axis component _{K y K y I j (j} = l .... m, ΔKy = [I _{(j + l)} ]
− [I _j ]) is assigned, and the device 3 outputs the x component of the n correction values and the y component of the m correction values. Here, n and m are the numbers of the components used for the change. Assuming that the total number of correction values on the correction surface is N, N = nm. Similarly, the correction values for the other correction surface II can also be changed (M correction values), so that on the output side of the device 3 there are a total of N · M correction possibilities in the correction value range. Can appear as the size of In this case, one correction possibility has four individual correction amounts (Kx
I, KyI, KxII, KyII). In addition to limiting the modification value in advance, the modification value is changed only on one modification surface, and the modification value on the other modification surface is not changed. It may be preferable to make corrections in two correction planes. Therefore, the apparatus 3 determines the limit of the change of the correction value, and also enables the control of the change of the component of the correction value on each correction surface and / or the correction value itself, for example, by a control unit (not shown). For this purpose, a control signal input terminal 35 is provided.

On the output side of the device 3, the correction values for each correction surface appear as a source of the above-mentioned range, and these correction values are stored in a storage portion provided in the device 3 for storing a range including the above-mentioned range. , And is supplied to the device 4 via the conductor 36 sequentially. The device 4 uses the geometrical data supplied via the conductor 47 for each element included in the above range, that is, for each combination of the correction values for each correction surface, The associated residual unbalance value at the bearing surface is determined.

The associated residual unbalance value is supplied via a line 37 to a first input terminal 38 of the comparator 5. A second input terminal 39 of the comparator 5 is supplied with an allowable residual unbalance value at the bearing surface, i.e. an unbalance tolerance limit. The residual unbalance value is compared with the allowable residual unbalance value. If the former is not greater than the latter, the former is a conductor
The data is supplied to the storage device 6 via 40. Each element belonging to the correction value range is further supplied to the storage device 6 via a conductor 41 branched from the conductor 36.

The storage device 6 is connected to the selector 7 via a conductor 42. The selector 7 determines any one of the correction values from the correction values stored in the storage device based on a criterion that can be set in advance. The storage device 6 receives a signal indicating which correction value is selected via the lead 43 and transfers the correction value to the storage and display unit 8 via the lead 31. In the unit 8, the correction values for each correction plane are displayed in the form of components, or in the case of vectors, or stored for further processing.

An embodiment of the selector 7 will be described in more detail with reference to FIG.

Using the selector 7 detailed in FIG. 2, a correction value is selected according to the number of correction values to be used.
The correction value for each correction surface stored in the storage device 6 is supplied to the signal processing unit 71 via the conductor 42. In the signal processing unit 71, a necessary correction amount for each correction surface is first formed by conversion from the components. This required amount of correction is compared for each correction surface with the amount appearing at input terminal 49, ie, the contents of storage device 72. The storage device 72 has two storage portions for storing two correction values. Each of these two correction values consists of a pair of values, ie, the amount of correction required for each correction surface. At the same time, the components that make up each required correction are also stored. The signal processing unit 71 is connected to the storage device 72 via the conductor 48. At the start of the selection process, the contents of the storage device are set to a value that is consistent with the initial correction requirement supplied to the signal processing unit 71. This setting is performed via a signal appearing at the input terminal 50 of the storage device 72. Both storage parts have the same contents. In each memory part,
Contains a pair of values of the compensation requirement for both correction surfaces. The next correction requirement supplied via conductor 42 is also
Each modified surface is compared with the contents of the storage device 72. If the required correction amount on one of the correction surfaces is smaller than the stored value, the content of the storage portion of the storage device 72 is rewritten via the conductor 48 to the required correction amount. At the same time, the components making up the required correction are stored. The signal processing unit 71 can perform the comparison for both correction planes sequentially or in parallel. After checking all the elements included in the correction value range, both storage portions of the storage device 72 store the correction value with the minimum correction amount, that is, the minimum compensation amount for one correction surface, and the other correction value. Appears for the correction surface, with the associated correction values or correction requirements, and may also be displayed. If the required correction value of one of the correction surfaces is zero, a signal for transferring the selected correction value to the storage / display unit 8 is transmitted via the lead 43 to the storage device 6.
Supplied to

When trying to determine whether a zero correction value can be found on both correction surfaces, it is necessary to store the first zero correction value in order to continue the selection process. If a zero correction value is found in both correction planes, one of both correction values is selected based on yet another criterion.
For example, one of the two correction surfaces may be prioritized.

A correction value that minimizes the number of correction surfaces to be used and at the same time minimizes the amount of compensation can also be selected. For this purpose, a zero correction value must be present at a plurality of locations, for example for each of both correction surfaces. Whether such a condition is satisfied can be confirmed, for example, by the selector 7 in FIG. If the zero correction value of one correction surface is equal to the correction value of the other correction surface with the smaller required correction amount, it can be said that such a condition is satisfied.

Another embodiment of the selector 7, shown in detail in FIG. 3, is used to determine a correction value that requires as little total compensation as possible. The correction value for each correction plane stored in the storage device 6 is supplied to the signal processing unit 81 via the conductor 42. In the signal processing unit 81, first, the necessary correction amount for each correction surface is formed by conversion from the components, and the two resulting amounts are added in the addition unit of the signal processing unit 81. The sum resulting from the addition is the amount appearing at input terminal 83, i.e., the storage
Compared to 82. The storage device 82 stores the result of adding the necessary correction amount obtained for each correction value for one correction value. At the same time, the components that make up each required correction are also stored. Signal processing unit 81
Is connected to the storage device 82 via a conductor 84. At the beginning of the selection process, the contents of the storage device are set to a value which is equal to the sum of the first correction requirements supplied to the signal processing unit 81. This setting is performed via a signal appearing at the input terminal 50. The next correction value supplied to the signal processing unit 81 via the conductor 42 is, of course, the sum of the compensation requirements, which is also compared with the contents of the storage device 82 for both correction surfaces. When the sum of the necessary compensation amounts, that is, the total compensation amount of either correction value is smaller than the stored value, the content of the storage device 82 is rewritten to the correction amount via the conductor 84. At the same time, the components constituting the correction amount are stored. After checking all the elements included in the correction value range, the correction values for each correction surface which requires only the minimum total compensation amount are stored in the storage device 82 as other accompanying items. Appear as things. The correction value thus selected is transferred to the storage / display unit 8.

FIG. 4 is a block diagram of an apparatus for determining a correction value. Although the allowable residual unbalance is determined for the reference plane, in the apparatus shown in FIG. 4, the support plane which is a plane for capturing the measurement signal (MS) is not used as the reference plane. Therefore, the output signal of the analyzer 1 must be supplied to a signal processing unit 2 'similar to the signal processing device 2 of FIG. The signal processing unit 2 'provides information on the geometric data of the rotor, or, when the rotor and the balance tester are viewed as one system, information on the geometric data of the system or, in some cases, on the degree of sway. Is provided with an input circuit 33 '. The unbalance value appears at the output of the signal processing unit 2 ', which is applied to the reference plane. Then, as already described in detail, the comparator 10 'can compare the found unbalance with the allowable residual unbalance in the reference plane supplied from the input terminal 29'. If the found unbalance is less than or equal to the allowable residual unbalance, this is also indicated by the device 11 '. No compensation is required, and no procedure for determining the correction value is required. To process unbalanced signals that are larger than the allowable residual unbalance,
The value applied to the reference plane is converted in a signal processor 2 "into a correction value associated with the correction plane. The signal processor 2"
Corresponds to the signal processing device 2 in FIG. 1 in the mode of operation. In the device 3, in order to change the correction value on the basis of the information appearing at the control signal input terminal 35, in a device 4 'substantially corresponding to the device 4 of FIG. An unbalance value is determined. In the apparatus shown in FIG. 4, the cutting points a and b of the apparatus shown in FIG.
Leads to the lower part.

Next, still another embodiment of the device for carrying out the present invention will be described with reference to FIG. This embodiment is also for a rotor having two reference planes and two correction planes, the reference plane being at a different position from the bearing plane. In this method, instead of changing the correction value on the correction plane and checking the resulting residual imbalance on the reference plane, as in the above case, the imbalance is changed on the reference plane and assigned. The optimum correction value is selected from the correction values in the correction plane.

As already described in detail in connection with FIG. 1, the signal (MS) emitted from the measuring transducer and the reference signal (RS) are supplied to the analyzer 1. The analyzer 1 produces from these two signals a signal representing the imbalance present on the support surface.

The output signal of the analyzer 1 is supplied to the signal processing device 102 via the conductor 132. The signal processor 102 may provide information about the geometric data of the rotor, or, if the rotor and the balance tester are viewed as one system, information about the geometric data of the system or, in some cases, information about the degree of agitation. An input circuit 133 for receiving is provided. A value appears at the output of the signal processing device 102 and is applied to the selected reference plane. The value is also stored in comparator 11
Supplied to 0.

Comparator 110 is compatible with existing comparators 10 and 1.
It is almost equivalent to 0 '. As described in detail above, the comparator 110 compares the found unbalance with the allowable residual unbalance for each reference plane supplied from the input terminal 129. In some cases, device 111 indicates that no correction is required. A difference between the unbalance and the allowable residual unbalance appears at the output terminal of the comparator 110, which is connected to the input terminal of the device 103 via a conductor 134. The device 103 is similar in its construction to the device 3 of FIG. In the device 103, the change of the unbalance in the reference plane is performed within a limit (allowable range) determined by the allowable residual unbalance. For example, if one starts from a found unbalance, the found unbalance is changed so that an unbalance value that does not exceed the limit determined by the allowable residual unbalance is sent to the next step. . However, one may start from any unbalance within the limits of the allowable residual unbalance. The device 103 is provided with a control signal input terminal 135 connected to the control device 128 to control the change of the unbalance. The control device 128
The output terminal of the comparator 110 that outputs the difference between the unbalance and the allowable residual unbalance as an output is connected via a conductor 131. This difference accounts for the part necessary to keep the value from exceeding the tolerance determined by the allowable residual unbalance in the course of changing the value starting from the found unbalance. , In the control device 128.

An output terminal of the device 103 is connected to a first input terminal of the comparator 105. Comparator 105 has a second input terminal 120 from which it accepts an allowable residual unbalance value. The first output terminal 121 of the comparator 105 is connected to the control device 128, and the second output terminal is connected to the device 1
Connected to 04. For all of the unbalance values provided by the device 103 to the comparator 105, a check is made as to whether they are less than or equal to the allowable residual unbalance. Less than the allowable residual unbalance
Or only the unbalance value equal thereto is transferred to the device 104. If an unbalance value larger than the allowable residual unbalance is found, the output terminal 121 is used to control the variation.
The device 1 is connected to the control device 128 via the conductor connected to the
03 is controlled.

In device 104, which is approximately device 2 "of FIG. 4, the unbalance value of the change in the reference plane is converted into a correction surface for the correction surface. Device 104 provides the necessary information for this conversion, namely the geometry of the rotor. If the rotor and the balance tester are viewed as one system, an input terminal 147 is provided for receiving information about the geometric data of the system, and the output terminal of the device 104 is a storage device 106.
It is connected to the. The correction value is stored in the storage device 106 as an element of the correction value range.

The storage device 106 is connected to the selector 7 via the conductor 42. The selector 7 determines any one of the correction values from the correction values stored in the storage device based on a criterion that can be set in advance. A signal indicating which of the selected correction values is present is stored in
3 and transfers the corrected value to the storage and display unit 8 via the conductor 31. In Unit 8,
The correction values for each correction plane are displayed in the form of components or, in some cases, in the form of vectors, or stored for further processing.

The process of selecting a correction value on the basis of a predetermined criterion may be performed by the selector 7 corresponding to one of the selectors described with reference to FIGS. This can be done by a selector 7 with a partial modification to the form described in relation to.

In the method according to the invention, the permissible residual unbalance value (permissible range), which forms the upper limit of the permissible unbalance in the plane containing the center of mass, is determined, for example, on the basis of the German Institute of Engineers Standard 2060. This value is an allowable residual unbalance value applied to at least one reference plane. The above-mentioned reference surface is generally a support surface. Now, assuming that there are two reference planes, for example, the allowable residual unbalance may be distributed to the two reference planes at a ratio determined based on the mass distribution, for example. The method of determining the allowable residual unbalance field of the reference surface may be determined based on, for example, the allowable dynamic load of the bearing or the allowable vibration of the housing of the machine.

The unbalance of the rotating body to be compensated is measured at both reference planes. The unbalance found in the reference plane is smaller than the allowable residual unbalance value in the reference plane,
If it is, or equals, that is, if the unbalance is within an acceptable range or coincides with its upper limit, then the rotating body is considered to be in a sufficiently accurately balanced state. There is no need to compensate for unbalance.

Conversely, if the unbalance found in both reference planes is greater than the allowable residual unbalance value in those reference planes, preferably within certain limits, or is found in one of the reference planes If only the unbalance is greater than the allowable residual unbalance value in the reference plane, a correction value that requires as little total compensation and / or as few correction steps as possible is required for compensation in the correction plane. Be prepared. If the time required for compensation is mainly determined by the number of correction steps, even if the total amount of correction required is relatively large, at least one correction step can be reduced in any case. By minimizing the number of applications, the cost and time of balancing can be saved.

Where the amount of compensation is mainly determined by the amount of compensation, the same applies to minimizing the amount of compensation as described above.

According to the present invention, the magnitude and the angular position of the unbalance obtained with the help of a preset characteristic value (for example, the distance between the correction plane and the reference plane) in at least one correction plane. The effect of different correction values can then be examined, for example, on a reference plane. That is, the residual unbalance in the reference plane, which is associated with these correction values, is compared with the allowable residual unbalance value. If the unbalance in the reference plane associated with the correction value of a correction plane is not greater than the allowable residual unbalance value, after performing compensation to correct the unbalance existing in the correction plane, The rotating body is regarded as being in a balanced state.
The residual unbalance associated with a plurality of possible correction values may be substantially set to the allowable residual unbalance value, or the unbalance value may be set in advance to substantially match the allowable residual unbalance value. Is particularly preferable. In that case, the unbalance is all within the allowable range, and after compensating using all the correction values to be examined, the rotating body is considered to be unbalanced. These procedures make it possible, when trying to make the most of the permissible residual unbalance or tolerance limits in the reference plane, to select the most suitable among a number of possible corrections.

In addition, it is preferable to preferentially examine a plurality of correction values in a desired correction plane or a correction plane area, and to derive a correction value to be prepared for compensation from among the plurality of correction values. Easy to do.

With particular advantage, the invention selects a compensation operation in which the number of correction steps and / or the number of correction surfaces to be used and / or the total amount of correction is small.

Further, in the method according to the present invention, a correction operation using a plurality of correction values on a plurality of correction surfaces can be performed without needing to derive a correction value to be prepared from among a plurality of possible correction values. Can be requested as a correction work to be prepared.

In addition to taking into account that a minimum total compensation amount and / or a minimum number of correction steps are required, consideration is given to concentrating the compensation amount on a predetermined plane. Thus, by concentrating the compensation amount as much as possible on the preferred plane, a balancing that is best suited to the shape of the rotating body can be achieved.

The number of correction steps depends on the number of correction surfaces and / or the number of correction steps used. The correction can be optimized with respect to the total amount of compensation and the number of correction surfaces and the number of correction steps to be used, and in some cases, provided that the compensation amount is concentrated on one correction surface.

In order to be particularly easy to understand and to be able to quickly determine the procedure for obtaining an acceptable residual unbalance value, by stepwise changing the correction value in at least one correction plane, and By combining the respective correction values for the correction plane, the residual unbalance assigned to each reference plane is determined, or by stepwise changing the unbalance value or the tolerance of the unbalance, and A correction value assigned to each correction plane is determined by combining the respective unbalance values of the reference plane. If the correction value is changed, it is preferable to start with a correction value which allows an accurate compensation without an allowable residual unbalance value.

When the correction value or the unbalance value is changed step by step, what is the residual unbalance on the reference plane?
The deviation of the correction value may be reduced and preferably substantially identical to the variation, for example by means of a display, so that it can be made visible. If a small deviation in one compensation operation results in a large change in the residual unbalance in the reference plane, it can be converted to a compensation operation less sensitive to balancing errors.

If errors were found during compensation and / or if errors were found during unbalance measurements, those errors were related to residual unbalance at the reference plane. By using the correction value and by making the correction value less than the allowable residual unbalance value by at least the value resulting from the accuracy of the unbalance measurement and / or from the accuracy of the compensation process. Therefore, it is taken into account. If the effect of the error can be said to be within an acceptable range, even the worst-case unbalance amount,
The reference plane will be within the tolerance of residual unbalance.

In addition, the residual unbalance in the reference plane, which is associated with the correction value provided for compensation, is compared with the allowable residual unbalance value, and each correction necessary to adhere to the allowable residual unbalance value. Finding the permissible error for each value,
I am careful.

According to the invention, in addition to the correction value, the accuracy required to adhere to the permissible residual unbalance value, or the error allowed in the correction process, is displayed, for example a large number of compensations with different masses in stages. Of the weights, those that are within the limits of the error can be selected.

On the basis of the type of correction work provided, at least one correction value is selected on at least one correction surface and the remaining correction values resulting from the selection are displayed. If so, one correction value is determined first based on the prepared correction work and on the basis of the compensating weight or the possibility of compensation. Although this correction value deviates from the optimal correction value, the remaining correction values resulting from determining this correction value are displayed.

When determining the correction value, determine the correction surface on which the first correction is to be performed.

Further, depending on the magnitude of the unbalance, the correction may be first performed on one of the correction surfaces, and subsequently, the unbalance still remaining on the specimen may be newly measured.

If attention is paid to the unbalance reduction ratio, the following is preferred. That is, the unbalance in each reference plane is compared with the allowable residual unbalance value, and if the unbalance in the reference plane is smaller than a value obtained by multiplying the allowable residual unbalance value by a predetermined value, the total compensation amount and / or the least possible It is preferable to provide a correction that requires as few correction steps as possible for compensation.

The use of a linear optimization method in determining the correction values makes it very easy to adapt the programming of the balancing process or the surrounding conditions to the various balancing problems.

Instead of a device composed of a counting circuit, a data processing device with correspondingly configured hardware and software may be used.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of an apparatus for determining a correction value, FIG. 2 is a diagram showing one unit in the schematic block diagram, and FIG. 3 is also one unit in the schematic block diagram. FIG. 4 is a diagram showing a part of the schematic block diagram, and FIG. 5 is a block diagram of still another device for determining a correction value. 1, 102 is an analyzer, 10, 110 are comparators, 29, 12
9 is an input terminal, 2, 3, 4, 5, 103, 104 and 105 are signal processing devices, 6 and 106 are storage devices, and 7 is a selector.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-8429 (JP, A) JP-A-58-18135 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01M 1/32 G01M 1/38

Claims (2)

(57) [Claims] 1. A method for determining a correction value in at least one correction plane that is not a reference plane to compensate for any unbalance present in an object to be balanced, an allowable residual unbalance value for at least one reference plane. Setting an unbalance value measured for at least one reference plane with at least a permissible residual unbalance value set for this reference plane; and a tolerance set for the measured unbalance value. Identifying when no correction is needed when the residual unbalance value is less than or equal to the residual unbalance value; and at least when the measured unbalance value is greater than an allowable residual unbalance value set for at least one reference plane. In a method for determining an unbalance correction value in the correction plane, a plurality of unbalance correction values are assigned to at least one correction plane, and Making the object to be balanced suitable for balancing in accordance with the set allowable residual unbalance value. For at least one correction surface, the combination of the assigned unbalance correction values is Generating a residual unbalance value associated therewith in at least one of the reference planes, converting the calculated residual unbalance value in at least one of the reference planes into a set allowable residual unbalance value Selecting an unbalance correction value that corrects an unbalance present in relation to the allowable residual unbalance set at the at least one reference plane; and determining a predetermined unbalance correction value from the selected unbalance correction values. Determining an optimal unbalance correction in accordance with the criterion of (1). 2. An analysis unit, wherein the unbalance value associated with at least one reference plane is indicated by magnitude and angular position or component, and the unbalance value associated with at least one reference plane is determined by at least one of the at least one reference plane. A comparator for comparing to an allowable residual unbalance value set for the surface and an apparatus for determining an unbalance correction value dependent on the magnitude of the unbalance value and the set allowable residual unbalance value. 2. An apparatus for implementing the method of claim 1, further comprising: a signal processing device for converting the unbalance into an unbalance correction value, the serially connected after the comparator (10; 10 '; 110). 2;
2 ″), and a number of unbalance corrections suitable for balancing the object to be balanced against the set allowable residual unbalance value,
Device for allocating at least one correction surface (3)
An apparatus (4) for calculating, on at least one reference plane, a residual unbalance value in relation to the assigned plurality of unbalance correction values; and calculating from the plurality of unbalance correction values assigned from one side. A comparator (5) to which the set residual unbalance value is inputted from the other side and an allowable residual unbalance value set therefrom, and a multi-variable unbalance correction value allocated are stored. Storage (6; 10) connected to a selector (7) for selecting one of the unbalance correction values.
6) An apparatus comprising: and