CN114646469A - High-frequency shimmy test device for researching fatigue failure of roller-roller path under action of magnetic field - Google Patents
High-frequency shimmy test device for researching fatigue failure of roller-roller path under action of magnetic field Download PDFInfo
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- CN114646469A CN114646469A CN202210372205.7A CN202210372205A CN114646469A CN 114646469 A CN114646469 A CN 114646469A CN 202210372205 A CN202210372205 A CN 202210372205A CN 114646469 A CN114646469 A CN 114646469A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
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Abstract
The invention provides a high-frequency shimmy test device for researching fatigue failure of a roller-raceway under the action of a magnetic field, which comprises: the device comprises a platform main body, an outer ring clamping mechanism, a radial loading clamping rod, an inner ring clamping mechanism, a high-frequency vibration generation module, a hydraulic loading module, a magnetic field generation module, an acoustic emission detection module, a lubricating module and an industrial personal computer. The invention uses high-frequency micro-swing to replace the rolling test mode of the traditional rolling bearing, can obviously improve the test efficiency compared with the traditional bearing fatigue test mode, can efficiently obtain the fatigue test results of the roller path and single points on the rolling body based on the same roller-roller path fatigue principle, and can obtain the influence process of the magnetic field change on the roller-roller path system by combining with the external magnetic field simulation.
Description
Technical Field
The invention belongs to the field of rolling bearing testing, and particularly relates to a high-frequency shimmy test device for researching fatigue failure of a roller-raceway under the action of a magnetic field.
Background
In the prior art, a roller-raceway assembly structure in a rolling bearing is taken as a measurement research object, the rolling bearing is an important basic part of rotating machinery, in the fields of mine industry and the like, the influence of a magnetic field environment on the dynamic performance of a vibration signal of the rolling bearing is great, and the early failure of a bearing product is often caused, so that the development of the test analysis of the rolling bearing under the action of a magnetic field has important significance, the high-frequency shimmy test device for the fatigue failure of the roller-raceway under the action of the magnetic field can be provided, the simulation of the magnetic environment can be realized, the roller-raceway single-point fatigue test can be developed by establishing a roller-raceway high-frequency shimmy motion model, and the test efficiency and the test effect are improved.
Disclosure of Invention
Aiming at the single-point fatigue process of a rolling bearing under the action of a strong magnetic field, considering a large amount of manpower and material resources and time cost required by the traditional fatigue test, and based on the fatigue failure mechanism between a single roller and an inner raceway and an outer raceway, the invention provides a high-frequency shimmy test device for researching the fatigue failure of the roller-raceway under the action of the magnetic field, and the high-frequency shimmy fatigue test of the roller-raceway under the magnetic field environment can be efficiently completed by combining a high-frequency vibration generating device, an acoustic emission detection method and an external magnetic field simulation device.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-frequency shimmy test device for researching fatigue failure of a roller-raceway under the action of a magnetic field comprises a device platform main body, an outer ring clamping mechanism, a radial loading clamping rod, an inner ring clamping mechanism, a high-frequency vibration generating module, a hydraulic loading module, a magnetic field generating module, an acoustic emission detection module, a lubricating module and an industrial personal computer; the outer ring clamping mechanism is positioned and installed on the device platform main body through a groove structure, a tested bearing outer ring test piece is installed and fixed in a clamping area of the device platform main body through two pairs of bolts and pressing sheets, and a tested bearing rolling body is placed in a tested bearing outer ring test piece raceway; the radial loading clamping rod penetrates through a guide hole in the device platform main body, is connected with the inner ring clamping mechanism through threads, and clamps a tested bearing inner ring test piece; the high-frequency vibration generating module consists of an ultrasonic generator, an ultrasonic transducer and an ultrasonic amplitude transformer, and an excitation rod of the high-frequency vibration generating module is connected with the radial loading clamping rod through threads; the hydraulic loading module consists of a hydraulic station and a hydraulic oil cylinder which are connected through an oil pipe, a hydraulic rod on the hydraulic oil cylinder is directly propped against the upper end of the radial loading clamping rod, and the hydraulic oil cylinder is connected with the device platform main body through threads; the magnetic field generation module is arranged at the bottom of the device platform main body through threads and radiates an adjustable magnetic field upwards; the acoustic emission detection module consists of an acoustic emission sensor and a signal conditioner, the acoustic emission sensor and the signal conditioner are connected through a signal transmission line, the acoustic emission sensor is attached to the outer side of the tested bearing outer ring test piece, and the signal conditioner is arranged in the industrial personal computer; the lubricating module is supplied with oil by a hydraulic station, the oil injection direction and position are adjusted by adjusting an oil injection nozzle, and oil is collected by a liquid collecting disc and returns to an oil tank of the hydraulic station in a gravity mode; the industrial personal computer is responsible for controlling the starting and stopping of the high-frequency vibration generation module, the hydraulic loading module, the magnetic field generation module, the acoustic emission detection module and the lubricating module, processing and storing acoustic signals transmitted back by the acoustic emission detection module.
Compared with the prior art, the invention has the beneficial effects that: the invention is suitable for researching the fatigue failure process of the rolling bearing under the action of a magnetic field, simulates the situation that a roller repeatedly rolls a bearing sleeve at a point under the high-speed running state of the rolling bearing in a high-frequency shimmy mode so as to cause the fatigue failure of the outer ring of the rolling bearing or the point on the rolling body, completes data collection by adopting a remote acoustic emission monitoring mode which is not influenced by the magnetic field, and provides a feasible research means for the research and analysis of the performance and the fatigue reliability of the rolling bearing in the magnetic field environment in the fields of the mine industry and the like. The invention uses high-frequency micro-swing to replace the rolling test mode of the traditional rolling bearing, can obviously improve the test efficiency compared with the traditional bearing fatigue test mode, can efficiently obtain the fatigue test results of the roller path and single points on the rolling body based on the same roller-roller path fatigue principle, and can obtain the influence process of the magnetic field change on the roller-roller path system by combining with the external magnetic field simulation.
Drawings
FIG. 1 is a schematic diagram of the module composition of the high-frequency shimmy test device for studying roller-raceway fatigue failure under the action of a magnetic field according to the present invention;
FIG. 2 is a general schematic diagram of the high frequency shimmy test apparatus for studying roller-raceway fatigue failure under the action of a magnetic field according to the present invention;
in fig. 2, 1 is a device platform main body, 5 is a high-frequency vibration generation module, 6 is a hydraulic loading module, 7 is a magnetic field generation module, 8 is an acoustic emission detection module, 9 is a lubrication module, and 10 is an industrial personal computer;
FIG. 3 is a schematic view of the mounting of the device platform body of the present invention;
in fig. 3, 2 is an outer ring clamping mechanism, 3 is a radial loading clamping rod, 4 is an inner ring clamping mechanism, 8 is an acoustic emission detection module, and 17 is an oil nozzle;
FIG. 4 is a schematic view showing the mounting of a rolling bearing to be tested according to the present invention;
in fig. 4, 11 is a test outer ring specimen of a tested bearing, 12 is a test rolling element of a tested bearing, and 13 is a test inner ring specimen of a tested bearing;
FIG. 5 is a schematic view of the installation of the high frequency vibration generating module of the present invention;
in fig. 5, 14 is an ultrasonic generator, 15 is an ultrasonic transducer, and 16 is an ultrasonic horn;
FIG. 6 is a schematic view of a device platform body containing a lubrication system according to the present invention;
in FIG. 6, 18 is a drip pan.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in figure 1, the high-frequency shimmy test device for researching fatigue failure of the roller-raceway under the action of a magnetic field comprises a device platform main body 1, an outer ring clamping mechanism 2, a radial loading clamping rod 3, an inner ring clamping mechanism 4, a high-frequency vibration generating module 5, a hydraulic loading module 6, a magnetic field generating module 7, an acoustic emission detection module 8, a lubricating module 9 and an industrial personal computer 10. The high-frequency vibration generation module 5 applies ultrasonic high-frequency vibration to the radial loading clamping rod 3, so that the radial loading clamping rod is subjected to high-frequency shimmy under the guide of a guide ring on the device platform main body 1, and a rolling body 12 of a tested bearing is driven to be repeatedly rolled on a rolling outer ring at high frequency, so that a fatigue failure generation mechanism is simulated; the hydraulic loading module 6 applies radial load to the radial loading clamping rod 3 through a hydraulic oil cylinder and simulates the radial load of the rolling bearing in the actual use process; the magnetic field generation module 7 generates adjustable magnetic field radiation to the device platform main body 1 to form an upward radiation adjustable magnetic field; the acoustic emission detection module 8 detects acoustic signals of the rolling body of the tested bearing through an acoustic emission sensor and analyzes fatigue failure characteristic signals and a degradation rule under the action of a magnetic field; the lubricating module 9 provides lubrication for the rolling body of the tested bearing on the device platform main body 1, so that the influence of the lubricating condition on the fatigue failure of the rolling bearing can be analyzed; the industrial personal computer 10 is connected with the high-frequency vibration generation module 5, the hydraulic loading module 6, the magnetic field generation module 7, the acoustic emission detection module 8 and the lubrication module 9 for overall test control.
The radial loading clamping rod 3 penetrates through a guide hole in the device platform body 1, is in threaded connection with the inner ring clamping mechanism 4, and can clamp a tested bearing inner ring test piece 13. The hydraulic loading module 6 consists of a hydraulic station and a hydraulic oil cylinder, the hydraulic station and the hydraulic oil cylinder are connected through an oil pipe, a hydraulic rod on the hydraulic oil cylinder is directly propped against the upper end of the radial loading clamping rod 3, and the hydraulic oil cylinder is connected with the device platform main body 1 through threads. The acoustic emission detection module 8 is composed of an acoustic emission sensor and a signal conditioner, the acoustic emission sensor and the signal conditioner are connected through a signal transmission line, the acoustic emission sensor is attached to the outer side of the tested bearing outer ring test piece 11, and the signal conditioner is arranged in the industrial personal computer 10. The industrial personal computer 10 is responsible for controlling the starting and stopping functions of the high-frequency vibration generation module 5, the hydraulic loading module 6, the magnetic field generation module 7, the acoustic emission detection module 8 and the lubrication module 9, processing and storing acoustic signals transmitted back by the acoustic emission detection module 8.
As shown in fig. 2, an outer ring clamping mechanism 2, a radial loading clamping rod 3 and an inner ring clamping mechanism 4 are directly arranged on a device platform main body 1; the high-frequency vibration generating module 5 is arranged on the right side of the radial loading clamping rod 3 through threads on the ultrasonic amplitude transformer 16; a hydraulic cylinder in the hydraulic loading module 6 is arranged right above the device platform main body 1 through threads and is kept on the same line with the radial loading clamping rod 3; the magnetic field generation module 7 is arranged right below the device platform main body 1 and emits a semicircular magnetic field upwards; the acoustic emission detection module 8 is arranged right in front of the device platform main body 1, wherein an acoustic emission sensor is adhered to the front side of a tested bearing outer ring test piece 11 through a coupling agent and an adhesive; the lubricating module 9 is arranged on the left side of the device platform main body 1, lubricating liquid is sprayed on the contact surface of a rolling body 12 of a tested bearing on the device platform main body 1 and a raceway through an adjustable oil nozzle 17, and the lubricating liquid flows back to the oil tank from the liquid collecting disc 18 through gravity; the industrial personal computer 10 is located on one side of the device platform body 1.
As shown in fig. 3, a tested bearing outer ring test piece 11 is pressed on an installation slope on a device platform main body 1 in a mode of two groups of paired bolts and pressing sheets, and the structure of the slope is used for ensuring the installation precision; the tested bearing rolling body 12 is placed on the tested bearing outer ring test piece 11; and the tested bearing inner ring test piece 13 is arranged on the radial loading clamping rod 3 through a bolt vice structure and further pressed on the tested bearing rolling body 12 to complete the installation.
As shown in fig. 4, the outer ring clamping mechanism 2 mainly comprises two groups of paired bolts and pressing sheets, wherein the bolts slide through a T-shaped groove below the device platform main body 1, and the mounting position can be adjusted arbitrarily; the installation height can be adjusted to bolt and preforming structural style, is convenient for the debugging installation of the 11 test pieces of the outer ring of the tested bearing of different models. The outer ring clamping mechanism 2 is used for installing and fixing a tested bearing outer ring test piece 11 in a clamping area of the device platform main body 1 through two pairs of bolts and pressing sheets, and the tested bearing rolling body 12 is placed in a roller path of the tested bearing outer ring test piece 11.
As shown in fig. 5, the high-frequency vibration generating module 5 is composed of an ultrasonic generator 14, an ultrasonic transducer 15 and an ultrasonic horn 16, the ultrasonic generator 14 generates ultrasonic energy, the ultrasonic energy is converted into mechanical energy by the ultrasonic transducer 15, and the mechanical energy is amplified by the ultrasonic horn 16 to output high-frequency vibration. And the excitation rod of the high-frequency vibration generation module 5 is connected with the radial loading clamping rod 3 through threads.
As shown in fig. 6, the lubricating module 9 consists of a hydraulic station, an oil jet 17 and a drip pan 18. The lubricating module 9 is supplied with oil by a hydraulic station, the oil spraying direction and position are adjusted by adjusting the oil spraying nozzle 17, and oil is collected by the liquid collecting disc 18 and returns to an oil tank of the hydraulic station in a gravity mode. The liquid collecting disc 18 is padded below the device platform main body 1 and used for collecting lubricating liquid and uniformly reflowing, and the oil nozzle 17 extends into the liquid collecting disc 18 to align with the tested bearing rolling body 12 on the device platform main body 1.
The invention relates to a high-frequency shimmy test device for researching fatigue failure of a roller-raceway under the action of a magnetic field, and provides a set of high-efficiency test device for researching the fatigue failure test of a rolling bearing under the action of the magnetic field. Based on the problems of a large amount of manpower and material resources and time cost required by the traditional fatigue test, a bearing test piece is cut into a section of assembly of an inner ring, an outer ring and a rolling body, ultrasonic high-frequency excitation is applied to a radial loading rod clamping the inner ring, so that the radial loading rod generates high-frequency micro-swing, and the high-frequency micro-swing is transmitted to the bearing test piece to enable the rolling body and raceways of the inner ring and the outer ring to generate tiny rolling motion, thereby efficiently simulating the fatigue failure process of the rolling bearing under the action of a magnetic field, and being convenient for analyzing and researching the fatigue failure generation principle and the influence factors of the rolling bearing under the action of the magnetic field.
The invention has not been described in detail and is within the skill of the art. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (1)
1. A high-frequency shimmy test device for researching fatigue failure of a roller-raceway under the action of a magnetic field is characterized in that: the device comprises a device platform main body (1), an outer ring clamping mechanism (2), a radial loading clamping rod (3), an inner ring clamping mechanism (4), a high-frequency vibration generation module (5), a hydraulic loading module (6), a magnetic field generation module (7), an acoustic emission detection module (8), a lubrication module (9) and an industrial personal computer (10); the outer ring clamping mechanism (2) is positioned and installed on the device platform main body (1) through a groove structure, a tested bearing outer ring test piece (11) is installed and fixed in a clamping area of the device platform main body (1) through two pairs of bolts and pressing sheets, and a tested bearing rolling body (12) is placed in a raceway of the tested bearing outer ring test piece (11); the radial loading clamping rod (3) penetrates through a guide hole in the device platform main body (1), is connected with the inner ring clamping mechanism (4) through threads, and clamps a tested bearing inner ring test piece (13); the high-frequency vibration generating module (5) consists of an ultrasonic generator (14), an ultrasonic transducer (15) and an ultrasonic amplitude transformer (16), and an excitation rod of the high-frequency vibration generating module is connected with the radial loading clamping rod (3) through threads; the hydraulic loading module (6) consists of a hydraulic station and a hydraulic oil cylinder which are connected through an oil pipe, a hydraulic rod on the hydraulic oil cylinder is directly propped against the upper end of the radial loading clamping rod (3), and the hydraulic oil cylinder is connected with the device platform main body (1) through threads; the magnetic field generation module (7) is arranged at the bottom of the device platform main body (1) through threads and radiates an adjustable magnetic field upwards; the acoustic emission detection module (8) consists of an acoustic emission sensor and a signal conditioner, the acoustic emission sensor and the signal conditioner are connected through a signal transmission line, the acoustic emission sensor is attached to the outer side of the tested bearing outer ring test piece (11), and the signal conditioner is arranged in the industrial personal computer (10); the lubricating module (9) is supplied with oil by a hydraulic station, the oil injection direction and position are adjusted by adjusting an oil injection nozzle (17), and oil is collected by a liquid collecting disc (18) and returns to an oil tank of the hydraulic station in a gravity mode; the industrial personal computer (10) is responsible for controlling starting, stopping and processing of the high-frequency vibration generation module (5), the hydraulic loading module (6), the magnetic field generation module (7), the acoustic emission detection module (8) and the lubricating module (9), and storing acoustic signals transmitted back by the acoustic emission detection module (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210372205.7A CN114646469B (en) | 2022-04-11 | 2022-04-11 | High-frequency shimmy test device for researching fatigue failure of roller-roller path under action of magnetic field |
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| CN202210372205.7A CN114646469B (en) | 2022-04-11 | 2022-04-11 | High-frequency shimmy test device for researching fatigue failure of roller-roller path under action of magnetic field |
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| CN114646469A true CN114646469A (en) | 2022-06-21 |
| CN114646469B CN114646469B (en) | 2022-11-11 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452065A (en) * | 1981-08-28 | 1984-06-05 | Federal-Mogul Corporation | Rolling contact fatigue test assembly |
| US5837882A (en) * | 1997-06-05 | 1998-11-17 | Ntn Corporation | Stationary element rolling contact fatigue tester |
| JP2009229288A (en) * | 2008-03-24 | 2009-10-08 | Ntn Corp | Testing method of rolling-contact fatigue life |
| CN104220870A (en) * | 2012-04-12 | 2014-12-17 | 西门子公司 | Sensor element with acoustic emission sensor |
| KR101875315B1 (en) * | 2017-02-23 | 2018-07-05 | 서울과학기술대학교 산학협력단 | Rolling contact fatigue tester |
| US20190250067A1 (en) * | 2016-12-27 | 2019-08-15 | South China University Of Technology | Fault diagnosis and life testing machine for flexible precision thin-wall bearing |
| CN112067295A (en) * | 2020-09-07 | 2020-12-11 | 沈阳建筑大学 | All-ceramic ball bearing outer ring raceway rolling contact fatigue test device and test method |
-
2022
- 2022-04-11 CN CN202210372205.7A patent/CN114646469B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452065A (en) * | 1981-08-28 | 1984-06-05 | Federal-Mogul Corporation | Rolling contact fatigue test assembly |
| US5837882A (en) * | 1997-06-05 | 1998-11-17 | Ntn Corporation | Stationary element rolling contact fatigue tester |
| JP2009229288A (en) * | 2008-03-24 | 2009-10-08 | Ntn Corp | Testing method of rolling-contact fatigue life |
| CN104220870A (en) * | 2012-04-12 | 2014-12-17 | 西门子公司 | Sensor element with acoustic emission sensor |
| US20190250067A1 (en) * | 2016-12-27 | 2019-08-15 | South China University Of Technology | Fault diagnosis and life testing machine for flexible precision thin-wall bearing |
| KR101875315B1 (en) * | 2017-02-23 | 2018-07-05 | 서울과학기술대학교 산학협력단 | Rolling contact fatigue tester |
| CN112067295A (en) * | 2020-09-07 | 2020-12-11 | 沈阳建筑大学 | All-ceramic ball bearing outer ring raceway rolling contact fatigue test device and test method |
Non-Patent Citations (1)
| Title |
|---|
| YUHOU WU等: "calculation on the radiation noise of ceramic ball bearings based on dynamic model considering nonlinear contact stiffness and damping", 《JOURNAL OF SOUND AND VIBRATION》 * |
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