CN118243288A - Checking method of centrifugal static balancing machine for railway wheels and balancing machine - Google Patents
Checking method of centrifugal static balancing machine for railway wheels and balancing machine Download PDFInfo
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Abstract
The invention discloses a method for checking a centrifugal static balancing machine for railway wheels, which comprises the steps of checking daily performance and quarterly performance, wherein a standard balance check sample wheel is used for checking the quarterly performance, and the unbalance amount and unbalance phase angle of a wheel pair balancing machine of a product to be detected are used for checking the daily performance; the daily verification comprises the steps of obtaining an initial static balance value and a phase angle of static unbalance of a wheel static balance test; calculating unbalance amount generated by a weight theory; fixing the counterweight at the inner diameter of the rim of the phase angle of the static unbalance of the wheel, and performing static balance test again to obtain a static balance value after counterweight, wherein the phase angle of the static unbalance is located; and calculating the unbalance value indicating value relative error and the phase angle indicating value error of the wheel, comparing the calculated error value with a standard value required by the wheel, judging whether the state of the static balancing machine is qualified, if so, finishing the verification, and if not, re-performing the verification until the state is qualified.
Description
Technical Field
The invention relates to the technical field of wheel verification, in particular to a centrifugal static balancing machine verification method for railway wheels and a balancing machine.
Background
In order to reduce jolt and jump of a railway vehicle during running, improve the stability of the vehicle and the comfort of passengers, it is necessary to detect and control the amount of wheel unevenness of a running part.
At present, the manufacturing standard of the railway wheel does not clearly specify the verification procedure and the test method of the static unbalance device for detecting the unbalance amount of the wheel. Because the diameter range of the wheel of the product is phi 760-phi 1250mm, the direct change of the detected wheel exceeds 10mm, the clamping jaw range of the balancing machine needs to be mechanically regulated, and the standard balance check sample wheel has limited specification, so that the clamping jaw clamping range needs to be regulated according to the size of the standard balance check sample wheel during daily calibration, the daily calibration is finished, then the clamping jaw clamping range is regulated again according to the diameter size of the detected wheel, the static unbalance test is carried out on the product, the conventional wheel balancing machine needs to carry out verification test on balance equipment by using the standard balance check sample wheel with known unbalance amount and unbalance phase angle, and the standard balance check sample wheel has limited specification due to the large size change range of the produced product, so that the clamping jaw clamping range of the balancing machine is frequently regulated during the production of the checksum.
Disclosure of Invention
In order to solve part or all of the technical problems in the prior art, the invention provides the centrifugal static balancing machine checking method for the railway wheels and the balancing machine, which simplify the detection process and the detection method, avoid frequent adjustment of the clamping range of the clamping jaw of the balancing machine during daily detection checking and production, have simple and reliable operation process, save detection time and detection cost and improve detection efficiency.
The technical scheme of the invention is as follows:
In a first aspect, the invention provides a method for checking a centrifugal static balance machine for a railway wheel, which comprises daily performance checking and quarter performance checking, wherein the method is performed by using a standard balance check sample wheel during the quarter performance checking, and the unbalance amount and the unbalance phase angle of a wheel pair balance machine of a product to be detected are directly used for quick checking during the daily performance checking;
The method comprises the following steps of:
Acquiring an initial static balance value and a phase angle of static unbalance of a wheel static balance test;
weighing the weight, obtaining the inner diameter of a wheel rim to be measured, and calculating the unbalance amount generated by the weight theory;
Fixing the counterweight at the inner diameter of the rim on the angle of the wheel, and performing static balance test again to obtain a static balance value after counterweight, wherein the phase angle of the static unbalance is located;
And calculating the unbalance value indicating value relative error and the phase angle indicating value error of the wheel, comparing the calculated error value with a standard value required by the wheel, judging whether the state of the static balancing machine is qualified, if so, completing the verification, and if not, carrying out the verification again after the static balancing machine is adjusted until the verification is qualified.
Further, the weight is plasticine.
Further, the imbalance amount theoretically generated by the weight is solved by using the following formula:
U g = M x Rs, where M represents the counterweight mass; rs represents the radius at the location of the counterweight; u g represents the amount of imbalance that the weight theory produces.
Further, the unbalance amount indication relative error is solved by using the following formula:
Wherein ω U represents the relative error of the unbalance amount indication value; u g represents the unbalance amount generated by the balance weight plasticine theory; u 0 denotes an initial unbalance amount of the wheel; u 1 represents the unbalance amount of the wheel after the weight is added.
Further, the phase angle indication error is solved using the following formula:
ωA＝|A1-A0|；
Wherein A 0 represents the phase angle of the initial static unbalance of the wheel; a 1 represents the phase angle of the static unbalance after the wheel is weighted; omega A represents the unbalance phase angle indication error.
In a second aspect, the invention also provides a balancing machine, which adopts the centrifugal static balancing machine checking method for the railway wheels to perform balance checking on the railway wheels.
The technical scheme of the invention has the main advantages that:
The invention relates to a checking method of a centrifugal static balancing machine for a railway wheel, which is used for daily and quick checking of a wheel off-line balancing machine arranged on a detection assembly line; the balance machine checking method is characterized in that the balance machine checking method is divided into daily performance checking and quarter performance checking, the standard balance checking sample wheel is used only when the quarter performance checking is performed, the unbalance amount and the unbalance phase angle of the balance machine are checked rapidly by directly using the product wheels to be detected during the daily checking, so that the action of one-time clamping jaw adjustment can be reduced, the detection process is simplified, the clamping range of the clamping jaw of the balance machine is prevented from being frequently adjusted during daily checking and checking sum production, the operation process is simple and reliable, the detection time and the detection cost are saved, each balance machine can be saved by about 5 minutes every day, and the detection efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and without limitation to the invention. In the drawings:
FIG. 1 is a schematic flow chart of a method for checking the daily performance of a centrifugal static balance machine for railway wheels according to an embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes in detail the technical scheme provided by the embodiment of the invention with reference to the accompanying drawings.
In practical production, the verification method of the balancing machine before use is similar to the verification procedure of the 'GB/T20731-2006 wheel balancing machine', and the verification of the balancing equipment must be performed by using standard balance verification sample wheels with known unbalance amounts and unbalance phase angles.
The invention provides a method for checking a centrifugal static balancing machine for a railway wheel, which comprises the steps of checking daily performance and quarterly performance, wherein a standard balance check sample wheel is used for checking the quarterly performance, and the unbalance amount and the unbalance phase angle of a wheel pair balancing machine of a product to be detected are directly used for quick checking during the daily performance checking; as shown in fig. 1, the method comprises the following steps:
Acquiring an initial static balance value U 0 of a wheel static balance test and a phase angle A 0 where a static unbalance is located;
weighing a weight piece with the weight of M, obtaining the inner diameter Rs of a wheel rim to be measured, and calculating the unbalance U g generated by the weight piece theory;
Fixing the counterweight piece at the inner diameter Rs of the rim on the phase angle A 0 where the static unbalance of the wheel is located, and carrying out static balance test again to obtain a balanced value U 1 after counterweight, wherein the phase angle A 1 where the static unbalance is located;
And calculating the relative error of the unbalance indication value and the phase angle indication value error of the wheel, and adjusting the phase angle A 1 of the unbalance to which the static balance value of the wheel to be checked is positioned according to the calculated error value to finish the static balance verification of the railway wheel. Specifically, when the adjustment is performed, the state of the static balancing machine is judged to be qualified according to the calculated error value and the required standard value, if the state of the static balancing machine is qualified, the verification is completed, the production link is entered, if the state of the static balancing machine is not qualified, the static balancing machine needs to be re-verified after the adjustment, and the production link can be entered after the state of the static balancing machine is qualified.
Therefore, the centrifugal static balancing machine checking method for the railway wheels divides the checking of the balancing machine into two types of daily performance checking and quarter performance checking, and only the standard balancing checking sample wheel is used for the quarter performance checking, and the product wheels to be detected are directly used for carrying out quick checking on the unbalance amount and the unbalance phase angle of the balancing machine during the daily checking, so that the action of one-time clamping jaw adjustment can be reduced, the detection process is simplified, the clamping range of the clamping jaw of the balancing machine is prevented from being frequently adjusted during daily checking and production, the operation process is simple and reliable, the detection time and the detection cost are saved, and the detection efficiency is improved.
Regarding the initial static balance value U 0 and the phase angle a 0 where the static unbalance is, in some alternative implementations of the present embodiment, the initial static balance value U 0 and the phase angle a 0 where the static unbalance is, when the wheel is tested by using the balancing machine, obtained.
Preferably, the weight is a plasticine.
Preferably, the imbalance amount theoretically generated by the weight is solved using the following formula:
U g = M x Rs, where M represents the counterweight mass; rs represents the radius at the location of the counterweight; u g represents the amount of imbalance that the weight theory produces.
Preferably, the imbalance indication relative error is solved using the following formula:
Wherein ω U represents the relative error of the unbalance amount indication value; u g represents the unbalance amount generated by the balance weight plasticine theory; u 0 denotes an initial unbalance amount of the wheel; u 1 represents the unbalance amount of the wheel after the weight is added.
The result is set so that the calculated result can satisfy the effect that the unbalance amount indication value of the balancing machine is 10% of the maximum allowable error value.
Preferably, the phase angle indication error is solved using the following formula:
ωA＝|A1-A0|；
Wherein A 0 represents the phase angle of the initial static unbalance of the wheel; a 1 represents the phase angle of the static unbalance after the wheel is weighted; omega A represents the unbalance phase angle indication error.
The result is set so that the calculated result can meet the effect of the requirement that the error maximum allowable value of the unbalanced phase angle indication value is 15 °.
In summary, the checking method of the centrifugal static balancing machine for the railway wheels is used for daily and fast checking of the off-line wheel balancing machine arranged on the detection assembly line; the balance machine checking method is characterized in that the balance machine checking method is divided into daily performance checking and quarter performance checking, the standard balance checking sample wheel is used only when the quarter performance checking is performed, the unbalance amount and the unbalance phase angle of the balance machine are checked rapidly by directly using the wheel of the product to be detected during the daily checking, so that the action of one-time clamping jaw adjustment can be reduced, the detection process is simplified, the clamping range of the clamping jaw of the balance machine is prevented from being frequently adjusted during daily detection checking and production, the operation process is simple and reliable, each balance machine can save about 5 minutes every day, the detection time and the detection cost are saved, and the detection efficiency is improved.
On the other hand, the invention also provides a balancing machine, which adopts the centrifugal static balancing machine checking method for the railway wheels to carry out balancing checking on the railway wheels.
Specifically, when the centrifugal static balancing machine calibration method for the railway wheels is adopted to carry out balance calibration on the wheels:
And (3) carrying out a static balance test by using the wheel for production on duty to obtain an initial static balance value U 0 of the wheel, and a phase angle A 0 of the static unbalance. Weighing the balance weight plasticine with the weight of M, consulting the wheel drawing to obtain the inner diameter Rs of a rim, calculating the unbalance U g generated by the plasticine theory according to the formula U g = M, fixing the balance weight plasticine at the inner diameter Rs of the rim on the angle of the wheel A 0, carrying out static balance test again to obtain a static balance value U 1 after the balance weight, and calculating the phase angle A 1 where the static unbalance is located according to the formula when carrying out the unbalance indication relative error test calculation: So that the calculated result can meet the effect that the unbalance amount indication value of the balancing machine is 10% relative to the maximum allowable error value. Calculating the relative error of the unbalance indication value, and performing phase angle indication value error test calculation: according to the formula omega A＝|A1-A0 |, calculating the phase angle A 0 where the initial wheel static unbalance is located and the phase angle indication error of the phase angle A 1 where the wheel static unbalance is located after the weight, so that the calculated result can meet the effect that the maximum allowable error value of the unbalanced phase angle indication is 15 degrees.
Therefore, when the balance machine is used for carrying out balance verification on the railway wheels, the detection process is simplified, the clamping range of the clamping jaw of the balance machine is prevented from being frequently adjusted during daily detection verification and production, the operation process is simple and reliable, the detection time and the detection cost are saved, and the detection efficiency is improved.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this context, "front", "rear", "left", "right", "upper" and "lower" are referred to with respect to the placement state shown in the drawings.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The method is characterized by comprising daily performance verification and quarter performance verification, wherein standard balance verification sample wheels are used for carrying out the quarter performance verification, and the unbalance amount and unbalance phase angle of the wheel pair balancing machine of a product to be detected are directly used for carrying out the quick verification during the daily performance verification;
The method comprises the following steps of:
Acquiring an initial static balance value and a phase angle of static unbalance of a wheel static balance test;
weighing the weight, obtaining the inner diameter of a wheel rim to be measured, and calculating the unbalance amount generated by the weight theory;
Fixing the counterweight at the inner diameter of the rim of the phase angle of the static unbalance of the wheel, and performing static balance test again to obtain a static balance value after counterweight, wherein the phase angle of the static unbalance is located;
And calculating the unbalance value indicating value relative error and the phase angle indicating value error of the wheel, comparing the calculated error value with a standard value required by the wheel, judging whether the state of the static balancing machine is qualified, if so, completing the verification, and if not, carrying out the verification again after the static balancing machine is adjusted until the verification is qualified.
2. The method for calibrating a centrifugal static balance machine for railway wheels according to claim 1, wherein the weight member is plasticine.
3. The method of calibrating a centrifugal static balance machine for railway wheels according to claim 1, wherein the unbalance amount theoretically generated by the weight is solved by using the following formula:
Ug＝M*Rs
Wherein: m represents the weight of the counterweight; rs represents the radius at the location of the counterweight; u g represents the amount of imbalance that the weight theory produces.
4. The method of claim 1, wherein the relative error of the unbalance measurement is solved by using the following formula:
Wherein: omega U represents the relative error of the unbalance indication; u g represents the unbalance amount generated by the balance weight plasticine theory; u 0 denotes an initial unbalance amount of the wheel; u 1 represents the unbalance amount of the wheel after the weight is added.
5. The method of calibrating a centrifugal static balance machine for railway wheels according to claim 1, wherein the phase angle indication error is solved using the following formula:
ωA＝|A1-A0|
Wherein: a 0 represents the phase angle of the initial static unbalance of the wheel; a 1 represents the phase angle of the static unbalance after the wheel is weighted; omega A represents the unbalance phase angle indication error.
6. A balancing machine, characterized in that the balancing machine adopts the centrifugal static balancing machine checking method for railway wheels according to any one of the claims 1-5 to perform balancing checking on the railway wheels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410291028.9A CN118243288A (en) | 2024-03-14 | 2024-03-14 | Checking method of centrifugal static balancing machine for railway wheels and balancing machine |
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| CN202410291028.9A CN118243288A (en) | 2024-03-14 | 2024-03-14 | Checking method of centrifugal static balancing machine for railway wheels and balancing machine |
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