CN106871849A - Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity - Google Patents
Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity Download PDFInfo
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- CN106871849A CN106871849A CN201510917492.5A CN201510917492A CN106871849A CN 106871849 A CN106871849 A CN 106871849A CN 201510917492 A CN201510917492 A CN 201510917492A CN 106871849 A CN106871849 A CN 106871849A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity, it is characterised in that：Step is as follows：(1) the axially measured wheel of measurement apparatus is contacted to the datum level of wheel inner side at A using non-pulling wheel Xuan lathes；(2) coordinate data of storage wheel inner side datum level；(3) safe retraction measurement apparatus；(4) the radial measurement wheel of measurement apparatus is contacted to the original position B of wheel profile；(5) continuously uninterruptedly scanned to the C of wheel rim top along wheel profile using measurement apparatus；(6) safe retraction measurement apparatus；(7) the actual geometric data between storage wheel profile 4 is from B to C；(8) by the data of left and right wheelses profile 4 are filtered, denoising, interpolation processing；(9) rail data are introduced on the basis of at datum level 5 to the wheel rolling circle of wheel inner side, calculates contact point, calculates the corresponding rolling radius difference of traversing amount；(10) wheel track Equivalent conicity value is calculated.
Description
Technical field
The invention belongs to technical field of measurement and test, and in particular to it is a kind of suitable for non-pulling wheel Xuan lathes to the measuring method of the wheel track Equivalent conicity between train and circuit rail.
Background technology
From technical standpoint, railway train wheel tread shape determines that wheel is a conic solid, its high speed scroll on railway track seems wheel to carrying out serpentine locomotion when advancing, the wheel being continually changing makes wheel pair be changed with the contact point of rail traversing amount, 1/2nd and wheel of left and right two wheel rolling radius of circles difference are to existence function relation between traversing amount, it is between the two linear relation in the range of certain traversing amount, the slope of the straight line is Equivalent conicity.
The size of Wheel/rail Match Equivalent conicity is closely related with dynamic response in train travelling process, and Equivalent conicity crosses conference and causes car structure oscillation crosswise to be alarmed, and Equivalent conicity is too small can cause to shake car phenomenon, and when serious, train even has derailed risk.Therefore, find that this hidden danger is the important measure for ensureing the safe and efficient high-speed cruising of train in time.
At present at home, still it is blank to the rapid of wheel track Equivalent conicity, automatic measurement, it is main that single wheel is carried out to measurement using the external portable equipment introduced.For the high ferro EMUs for needing rapid-maintenance, it has following defect for this：One be it is cumbersome, it is necessary to carry out the connection before big measurement and measurement after debugging evaluation work；Two is higher to operating personnel's degree of specialization requirement；Three is expensive apparatus value, increases user cost；Four is to be not easy to maintenance and repair；Five is extremely low measurement efficiency, and measurement place is also required, therefore, this mode is difficult to meet actual demand of the wheel to measuring.
The content of the invention
In order to solve the problems, such as that wheel track Equivalent conicity testing cost is high in the prior art, efficiency is low, a kind of present invention measuring method of the non-pulling wheel Xuan lathes of offer to wheel track Equivalent conicity, realizes the measuring method of inexpensive, accurate, rapid, automation wheel track Equivalent conicity.
The technical proposal of the invention is realized in this way：Non-pulling wheel Xuan lathes are to the measuring method of wheel track Equivalent conicity, and step is as follows：
(1) the axially measured wheel of measurement apparatus is contacted to the datum level of wheel inner side at A using non-pulling wheel Xuan lathes；
(2) coordinate data of storage wheel inner side datum level；
(3) safe retraction measurement apparatus；
(4) the radial measurement wheel of measurement apparatus is contacted to the original position B of wheel profile；
(5) continuously uninterruptedly scanned to the C of wheel rim top along wheel profile using measurement apparatus；
(6) safe retraction measurement apparatus；
(7) the actual geometric data between storage wheel profile is from B to C；
(8) by the data of left and right wheelses profile are filtered, denoising, interpolation processing；
(9) rail data are introduced on the basis of at datum level to the wheel rolling circle of wheel inner side, calculates contact point, calculates the corresponding rolling radius difference of traversing amount；
(10) wheel track Equivalent conicity value is calculated.
Further, step（10）Using nonlinear differential equation integral algorithm.
Take turns to left and right wheelses respectively using left and right measurement apparatus measured using same method.
The present invention utilizes existing place and hardware condition, many disadvantages of portable equipment is overcome, with advantages below：One is simple to operate, can be automatically performed all measurement process, is not required to manual intervention；Two is that operating personnel are required without specialty, only need to pay close attention to its measurement process；Three is that increased cost is extremely low；Four are easy for maintenance maintenance, its maintenance maintenance content for belonging to non-pulling wheel Xuan lathes；Five is measurement efficiency high；Six is accuracy high, and its part for belonging to Digit Control Machine Tool simultaneously uses contact type measurement, authentic and valid；Six is good measurement reproducibility, without artificial error component；Seven can be the polygon situation of the basic circle that measurement is specified, and different focus are shot the arrow at the target.The present invention can effectively ensure the quick detection maintenance of train, ensure train operating safety, improve social benefit and also improve economic benefit indirectly.
Brief description of the drawings
Fig. 1 is measuring method detects schematic diagram of the non-pulling wheel Xuan lathes of the present invention to wheel track Equivalent conicity.
Reference：1st, measurement apparatus, 2, radial measurement wheel, 3, axially measured wheel, 4, wheel profile, 5, wheel inner side datum level.
Specific embodiment
Non-pulling wheel Xuan lathes are to the measuring method of wheel track Equivalent conicity, and step is as follows：
(1) the axially measured wheel 3 of measurement apparatus 1 is contacted to the datum level 5 of wheel inner side at A using non-pulling wheel Xuan lathes；
(2) coordinate data of storage wheel inner side datum level 5；
(3) safe retraction measurement apparatus 1；
(4) the radial measurement wheel 2 of measurement apparatus 1 is contacted to the original position B of wheel profile 4；
(5) uninterruptedly scanned to the C of wheel rim top along wheel profile 4 is continuous using measurement apparatus 1；
(6) safe retraction measurement apparatus 1；
(7) the actual geometric data between storage wheel profile 4 is from B to C；
(8) by the data of left and right wheelses profile 4 are filtered, denoising, interpolation processing；
(9) rail data are introduced on the basis of at datum level 5 to the wheel rolling circle of wheel inner side, calculates contact point, calculates the corresponding rolling radius difference of traversing amount；
(10) wheel track Equivalent conicity value is calculated.
Further, step（10）Using nonlinear differential equation integral algorithm, step is as follows：
Step is as follows：
（101）Determine wheel to traversing amplitude dy and the corresponding relation of traversing amount y according to rolling radius difference integration
, then by boundary condition：The traversing corresponding maximum traversing amount of amplitude and the corresponding angle Ψ that shakes the head of minimum traversing amount are 0, calculate the constant C solved when shaking the head angle Ψ；
（102）Obtain after constant C further according toIt is determined that shake the head angle Ψ and the function of traversing amount y, afterwards further according toIt is integrated, determines wheel wheel corresponding to traversing amplitude to motion wavelength X；
（103）Again by formulaObtain wheel track Equivalent conicity.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for a person skilled in the art, the present invention there can be various modifications and variations.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.
Claims (2)
1. measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity, it is characterised in that：Step is as follows：
(1) the axially measured wheel of measurement apparatus is contacted to the datum level of wheel inner side at A using non-pulling wheel Xuan lathes；
(2) coordinate data of storage wheel inner side datum level；
(3) safe retraction measurement apparatus；
(4) the radial measurement wheel of measurement apparatus is contacted to the original position B of wheel profile；
(5) continuously uninterruptedly scanned to the C of wheel rim top along wheel profile using measurement apparatus；
(6) safe retraction measurement apparatus；
(7) the actual geometric data between storage wheel profile is from B to C；
(8) by the data of left and right wheelses profile are filtered, denoising, interpolation processing；
(9) rail data are introduced on the basis of at datum level to the wheel rolling circle of wheel inner side, calculates contact point, calculates the corresponding rolling radius difference of traversing amount；
(10) wheel track Equivalent conicity value is calculated.
2. measuring method of the non-pulling wheel Xuan lathes according to claim 1 to wheel track Equivalent conicity, it is characterised in that：Step（10）Using nonlinear differential equation integral algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917492.5A CN106871849A (en) | 2015-12-11 | 2015-12-11 | Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917492.5A CN106871849A (en) | 2015-12-11 | 2015-12-11 | Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity |
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| Publication Number | Publication Date |
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| CN106871849A true CN106871849A (en) | 2017-06-20 |
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| CN201510917492.5A Pending CN106871849A (en) | 2015-12-11 | 2015-12-11 | Measuring method of the non-pulling wheel Xuan lathes to wheel track Equivalent conicity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111382512A (en) * | 2020-03-09 | 2020-07-07 | 西南交通大学 | Method for determining equivalent taper of wheel set in high-speed turnout area |
| CN113724318A (en) * | 2021-08-31 | 2021-11-30 | 珠海启世机械设备股份有限公司 | Railway safety coefficient data generation method, system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203470926U (en) * | 2013-08-27 | 2014-03-12 | 武汉重型机床集团有限公司 | Under-floor lathe detection device |
| CN103738358A (en) * | 2013-12-26 | 2014-04-23 | 柳州科路测量仪器有限责任公司 | Portable railway wheel tread parameter detection instrument |
| CN204831265U (en) * | 2015-04-27 | 2015-12-02 | 龙铁纵横(北京)轨道交通设备有限公司 | Wheel equivalence tapering measuring equipment |
-
2015
- 2015-12-11 CN CN201510917492.5A patent/CN106871849A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203470926U (en) * | 2013-08-27 | 2014-03-12 | 武汉重型机床集团有限公司 | Under-floor lathe detection device |
| CN103738358A (en) * | 2013-12-26 | 2014-04-23 | 柳州科路测量仪器有限责任公司 | Portable railway wheel tread parameter detection instrument |
| CN204831265U (en) * | 2015-04-27 | 2015-12-02 | 龙铁纵横(北京)轨道交通设备有限公司 | Wheel equivalence tapering measuring equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111382512A (en) * | 2020-03-09 | 2020-07-07 | 西南交通大学 | Method for determining equivalent taper of wheel set in high-speed turnout area |
| CN113724318A (en) * | 2021-08-31 | 2021-11-30 | 珠海启世机械设备股份有限公司 | Railway safety coefficient data generation method, system and storage medium |
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Application publication date: 20170620 |