CN102506798A - Portable quenching depth nondestructive testing device for slewing bearing raceway - Google Patents
Portable quenching depth nondestructive testing device for slewing bearing raceway Download PDFInfo
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- CN102506798A CN102506798A CN2011103270282A CN201110327028A CN102506798A CN 102506798 A CN102506798 A CN 102506798A CN 2011103270282 A CN2011103270282 A CN 2011103270282A CN 201110327028 A CN201110327028 A CN 201110327028A CN 102506798 A CN102506798 A CN 102506798A
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- pivoting support
- slewing bearing
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Abstract
The invention relates to a portable quenching depth nondestructive testing device for a slewing bearing raceway, which comprises a special measuring head for the raceway, a front end sensor, a data acquisition subsystem, a human-computer interaction subsystem, an embedded data operation core and a power supply module, wherein the front end of the special measuring head for the raceway is of a circular arc shape; the front end sensor is arranged in the measuring head; the data acquisition subsystem is used for converting an output signal of the front end sensor into a current signal; the human-computer interaction subsystem is used for carrying out man-machine interaction and inputting parameters to be detected, such as a slewing bearing material, a raceway diameter and the like; the embedded data operation core is used for carrying out data operation on the current signal acquired by the data acquisition subsystem; and the power supply module is used for providing a working power supply. According to the invention, an electric signal parameter is converted into a quenching depth parameter by adopting a nonlinear parameter identification algorithm; the detection can be carried out without damaging a slewing bearing; parameter calibration is carried out before the portable quenching depth nondestructive testing device for the slewing bearing raceway is used; when a blank and a process of the detected slewing bearing are changed, the detected parameters can be correspondingly corrected; and the portable quenching depth nondestructive testing device for the slewing bearing raceway is convenient to use, has high precision and small volume and is convenient to carry.
Description
Technical field
The invention belongs to the industrial detection technical field, be specifically related to a kind of pick-up unit of the portable Non-Destructive Testing pivoting support raceway depth of quenching.
Background technology
Pivoting support raceway the time need bear bigger axial force, radial force, upsetting moment in work, and with the continuous rubbing contact of rolling body, for guaranteeing intensity, the wearing quality of raceway, need carry out Quenching Treatment to raceway.Require the depth of quenching will be in claimed range during quenching, and want evenly in the degree of depth of whole circle, otherwise can cause mechanical property low with the thermal treatment of whole circle after distortion bigger.
Traditional section detects depth of quenching method need destroy pivoting support, thus its have can't check in batches, the shortcoming of inefficiency.Present thermal treatment the cannot-harm-detection device has following drawback, causes measuring error bigger: 1, do not consider the characteristics of pivoting support manufacturing process, with general material property parameter as beasurement base; 2, ignored the influence of the shape, size of different model pivoting support to measurement result; 3, when the blank of tested pivoting support, when technology changes, can't make corresponding correction to detected parameters.
Summary of the invention
The object of the invention will overcome the above problems exactly; A kind of portable pivoting support raceway depth of quenching the cannot-harm-detection device is provided; Adopt contact Dynamic Non-Destruction Measurement scheme; Convert the variation of the depth of quenching into change in current through sensor, and current signal is recognized as corresponding depth of quenching value through the embedded data arithmetic core.
Technical scheme of the present invention is achieved like this: a kind of portable pivoting support raceway depth of quenching the cannot-harm-detection device, and be characterized in: it comprises: 1) front end is the raceway special measurement head 2 that circular-arc being used for contacts with pivoting support raceway 1; 2) be installed on the interior front end sensors 3 of measuring head; 3) the output conversion of signals with front end sensors is the data acquisition subsystem of current signal; 4) be used for pivoting support material and the isoparametric man-machine interaction subsystem of raceway diameter that the man-machine conversation input will detect; 5) mate the relevant parameters identification algorithm automatically according to the size and the model of the raceway of man-machine interaction subsystem input; The current signal that the data acquisition subsystem collection is come carries out data operation, and measurement result is presented at the embedded data arithmetic core on the user interface through the man-machine interaction subsystem; 6) be used to provide the power module of working power.
The present invention adopts the nonlinear parameter identification algorithm, converts electric signal parameter into depth of quenching parameter, and this algorithm has experience database, and accuracy of detection improves along with the increase of measuring sample; Set up different parameter identification subroutines to the raceway of different size, avoid because the measuring error that size and change in shape cause.Need not to destroy pivoting support and just can detect, carry out parameter calibration before use, when the blank of tested pivoting support, when technology changes, can make corresponding correction to detected parameters, easy to use, precision is high, and volume is little, is convenient for carrying.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention.
Fig. 2 is the detection schematic diagram of raceway in the pivoting support of the present invention
Among the figure: 1---pivoting support raceway; 2---raceway special measurement head; 3---front end sensors.
Embodiment
Like Fig. 1, shown in Figure 2, the present invention includes: 1) front end is the raceway special measurement head 2 that circular-arc being used for contacts with pivoting support raceway 1; 2) be installed on the interior front end sensors 3 of measuring head; 3) the output conversion of signals with front end sensors is the data acquisition subsystem of current signal; 4) be used for pivoting support material and the isoparametric man-machine interaction subsystem of raceway diameter that the man-machine conversation input will detect; 5) mate the relevant parameters identification algorithm automatically according to the size and the model of the raceway of man-machine interaction subsystem input; The current signal that the data acquisition subsystem collection is come carries out data operation, and measurement result is presented at the embedded data arithmetic core on the user interface through the man-machine interaction subsystem; 6) be used to provide the power module of working power.The embedded data arithmetic core adopts the embedded system based on the DSP2000 chip; Employing has the nonlinear parameter identification algorithm of experience database, converts electric signal parameter into depth of quenching parameter, and accuracy of detection improves along with the increase of measuring sample; Set up different parameter identification subroutines to the raceway of different size, avoid because the measuring error that size and change in shape cause.The man-machine interaction subsystem have model selection function, sample input function, The measured results show function, with the computing machine transfer function.Power module has the accumulator inverter, does not have alternating current also can normally use.
Need demarcate before use; Need demarcate respectively to difform raceway; Raceway series to identical shaped, that size is different only needs to demarcate a kind of raceway of intermediate sizes, and the raceway of other size can compensate through the nonlinear interaction coefficient in the parameter identification algorithm.Timing signal is measured the sample of having measured the depth of quenching with the present invention, draws the corresponding relation of the electric current of one group of depth of quenching and front end sensors 3, and should organize data through in the man-machine interface input embedded data arithmetic core, can accomplish demarcation.When trickle change takes place the pivoting support manufacturing process, only need in the embedded data arithmetic core, to compensate to recover measuring accuracy; When generating material change or big process reform, need carry out proving operation again.
During measurement, operating personnel are the power switch of opening detecting device at first, and the waiting facilities initialization finishes.Need use the standard sample calibration detection apparatus after each start, check sensor have do not produce drift, whether testing circuit work normal.After Equipment Alignment finished, operating personnel at first selected the model of tested pivoting support raceway 1 in man-machine interface, and the material of the pivoting support raceway that detect, diameter are 50Mn like material, and the raceway diameter is 34.985mm; The man-machine interaction subsystem is input to the parameter of selecting in the embedded data arithmetic core, the parameter identification arithmetic subroutine that arithmetic core is selected automatically and this raceway is complementary; Parameter according to tested pivoting support raceway 1 is selected corresponding raceway special measurement head 2; After preliminary work is accomplished; The surface that the raceway special measurement head 2 that the operator only needs to be built-in with front end sensors 3 is adjacent to tested pivoting support raceway 1 can obtain depth of quenching value; Generally in order to check uniform quenching property and to prevent the mistake survey; A plurality of measuring points are selected at the raceway circumferencial direction in the capital, to obtain one group of depth data, improve and measure accuracy.
Claims (4)
1. portable pivoting support raceway depth of quenching the cannot-harm-detection device, it is characterized in that: it comprises: 1) front end is the raceway special measurement head that circular-arc being used for contacts with pivoting support raceway; 2) be installed on the interior front end sensors of measuring head; 3) the output conversion of signals with front end sensors is the data acquisition subsystem of current signal; 4) be used for pivoting support material and the isoparametric man-machine interaction subsystem of raceway diameter that the man-machine conversation input will detect; 5) mate the relevant parameters identification algorithm automatically according to the size and the model of the raceway of man-machine interaction subsystem input; The current signal that the data acquisition subsystem collection is come carries out data operation, and measurement result is presented at the embedded data arithmetic core on the user interface through the man-machine interaction subsystem; 6) be used to provide the power module of working power.
2. a kind of portable pivoting support raceway depth of quenching the cannot-harm-detection device according to claim 1 is characterized in that: described embedded data arithmetic core adopts the embedded system based on the DSP2000 chip; Employing has the nonlinear parameter identification algorithm of experience database, converts electric signal parameter into depth of quenching parameter.
3. a kind of portable pivoting support raceway depth of quenching the cannot-harm-detection device according to claim 1 and 2 is characterized in that: described man-machine interaction subsystem have model selection function, sample input function, The measured results show function, with the computing machine transfer function.
4. a kind of portable pivoting support raceway depth of quenching the cannot-harm-detection device according to claim 3, it is characterized in that: described power module has the accumulator inverter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103270282A CN102506798A (en) | 2011-10-25 | 2011-10-25 | Portable quenching depth nondestructive testing device for slewing bearing raceway |
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| CN2011103270282A CN102506798A (en) | 2011-10-25 | 2011-10-25 | Portable quenching depth nondestructive testing device for slewing bearing raceway |
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Citations (7)
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| JPH1019552A (en) * | 1996-07-02 | 1998-01-23 | Ishikawajima Harima Heavy Ind Co Ltd | Shape sensor roll |
| FR2773615A1 (en) * | 1998-01-09 | 1999-07-16 | Peugeot | Non-destructive quality control procedure for controlling thickness of hardened layer on surface of iron or steel component produced in industrial manufacturing process |
| JP2936657B2 (en) * | 1990-06-26 | 1999-08-23 | 日本精工株式会社 | Measurement method of heat treatment hardened layer depth |
| CN1410766A (en) * | 2002-11-02 | 2003-04-16 | 东风汽车公司 | Method of proceeding nondestructive inspection using Barkhausen noise signal |
| JP2010078326A (en) * | 2008-09-24 | 2010-04-08 | Meiwa E Tec:Kk | Hardening depth inspecting device |
| JP2010164306A (en) * | 2009-01-13 | 2010-07-29 | Ntn Corp | Method and device for hardened depth |
| CN101960302A (en) * | 2008-10-28 | 2011-01-26 | 丰田自动车株式会社 | Frequency selection method for eddy current measurement and method of measuring depth of hardening |
-
2011
- 2011-10-25 CN CN2011103270282A patent/CN102506798A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2936657B2 (en) * | 1990-06-26 | 1999-08-23 | 日本精工株式会社 | Measurement method of heat treatment hardened layer depth |
| JPH1019552A (en) * | 1996-07-02 | 1998-01-23 | Ishikawajima Harima Heavy Ind Co Ltd | Shape sensor roll |
| FR2773615A1 (en) * | 1998-01-09 | 1999-07-16 | Peugeot | Non-destructive quality control procedure for controlling thickness of hardened layer on surface of iron or steel component produced in industrial manufacturing process |
| CN1410766A (en) * | 2002-11-02 | 2003-04-16 | 东风汽车公司 | Method of proceeding nondestructive inspection using Barkhausen noise signal |
| JP2010078326A (en) * | 2008-09-24 | 2010-04-08 | Meiwa E Tec:Kk | Hardening depth inspecting device |
| CN101960302A (en) * | 2008-10-28 | 2011-01-26 | 丰田自动车株式会社 | Frequency selection method for eddy current measurement and method of measuring depth of hardening |
| JP2010164306A (en) * | 2009-01-13 | 2010-07-29 | Ntn Corp | Method and device for hardened depth |
Non-Patent Citations (1)
| Title |
|---|
| 孙砚飞: "基于人工智能的硬化层深预测系统", 《中国优秀博硕士学位论文全文数据库（硕士） 信息科技辑》, no. 01, 20 April 2004 (2004-04-20), pages 140 - 360 * |
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Address after: 243000 Ma'anshan Province Economic and Technological Development Zone, West Mountain Road, Anhui Applicant after: Maanshan Fangyuan Slewing Ring Co., Ltd. Applicant after: Anhui University of Technology Address before: 243000 Anhui city of Ma'anshan province Jinjiazhuang District Cihu Chemical Industry Road No. 1 Applicant before: Maanshan Fangyuan Slewing Ring Co., Ltd. Applicant before: Anhui University of Technology |
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Application publication date: 20120620 |