CN108168889B - Temperature field measuring device and method for rolling bearing test - Google Patents
Temperature field measuring device and method for rolling bearing test Download PDFInfo
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- CN108168889B CN108168889B CN201810121133.2A CN201810121133A CN108168889B CN 108168889 B CN108168889 B CN 108168889B CN 201810121133 A CN201810121133 A CN 201810121133A CN 108168889 B CN108168889 B CN 108168889B
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
- G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
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Abstract
The invention provides a temperature field measuring device and method for a rolling bearing test, and belongs to the field of bearing temperature measurement. The method comprises the following specific steps: after the motor and the thermal imager are started, preheated and stabilized, the test bearing starts to work, and the rotating speed and the axial load of the test bearing are gradually increased until the test bearing is close to the actual working condition; the servo motor is controlled to rotate at a slow speed, so that the thermal imager can be driven to rotate around the shaft, and the temperatures of the test bearing retainer or the rolling body and the test bearing outer ring are obtained; the coded disc reads the position information of the test bearing, the real-time position of the thermal imager can be obtained through calculation, and the temperature information measured by the thermal imager corresponds to the position information of the thermal imager, so that the temperature field distribution condition of the surface of the test bearing is obtained. In order to reduce the influence of lubricating oil on the measurement precision as much as possible, the germanium glass is arranged at the accessory of the bearing temperature measuring area, and the purging module is designed to blow away randomly splashed oil mist on the premise of not influencing the lubricating effect of the lubricating oil, so that the precision of non-contact testing is improved.
Description
Technical Field
The invention relates to a temperature field measuring device and method for a rolling bearing test, and belongs to the technical field of bearing temperature measurement.
Background
The temperature field distribution is an important factor reflecting the running condition and the service performance of the bearing and is related to the quality and the performance of the bearing, so that the measurement of the temperature field is important in the design, the manufacture and the use of the bearing.
The bearing rotating ring rotates at high speed, the highest point of the temperature in the bearing is positioned in a contact area of the rolling body and the ring, and the temperature measurement in the contact area is difficult to adopt contact measurement. The measurement of the temperature distribution in the bearing can provide basic test data for investigating the temperature difference between the highest temperature point in the bearing and the traditional temperature measuring point of the ferrule, and can be used for guiding the state monitoring of the bearing and verifying the thermal analysis result of the bearing. By testing the temperature field during the bearing operation, basic data for verifying the thermal analysis result of the bearing can be obtained, and a means is provided for monitoring the bearing state. The rotation of the shaft and the bearing can stir up a large amount of oil mist, which causes certain trouble to the measurement work.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and further provides a temperature field measuring device and method for a rolling bearing test.
The purpose of the invention is realized by the following technical scheme:
a temperature field measuring device for a rolling bearing test comprises a measuring part, a transmission part and a light path cleaning part,
the measuring part comprises a thermal imager,
the transmission part comprises a servo motor, a force sensor, a loading rod, a code disc, a motor, a belt transmission part, a support bearing, an axial loading disc, a test bearing and an end cover,
the optical path cleaning part comprises germanium glass and a purging module,
a thermal imager is arranged on an end cover of the outer box body through a hole, the head of the thermal imager extends into the hole, and the rest part of the thermal imager is supported by a bracket on the end cover;
a main shaft of the servo motor is connected with the end cover through a transmission belt wheel, the motor is connected with the end cover through belt transmission, and the coded disc is connected with the motor; the middle of the end cover and the transmission belt wheel is provided with a hole for the axial loading rod to pass through; the servo motor is connected with the loading rod through a force sensor; the outer ring of the end cover is connected with the box body through a supporting bearing;
one end of the loading rod is connected with an axial loading disc, the axial loading disc applies axial load to the test bearing, the test bearing is arranged on the driving main shaft, the inner ring of the test bearing rotates along with the shaft, and the outer ring of the test bearing and the box body are kept static;
germanium glass is installed in front of the thermal imager lens, and a purging module is installed on the inner side of the end cover.
The invention relates to a temperature field measuring device for a rolling bearing test.
The invention relates to a temperature field measuring device for a rolling bearing test, which is characterized in that the rotation range of an end cover ranges from minus 180 degrees to plus 180 degrees.
The invention relates to a temperature field measuring device for a rolling bearing test.
The invention relates to a temperature field measuring device for a rolling bearing test, which is characterized in that an axial loading disc is of a spoke type framework structure.
The invention relates to a temperature field measuring device for a rolling bearing test, which is characterized in that a purging module is installed on the inner side of an end cover, and external compressed air enters the purging module through A and is sprayed out at a high speed through a nozzle so as to continuously blow off oil mist on the surface of germanium glass.
A temperature field measuring method for a rolling bearing test comprises the following specific steps:
the method comprises the following steps: firstly, measuring the surface temperature of a test bearing by using a contact temperature sensor, and calibrating the emissivity of a thermal imager on line by using the data;
step two: after the motor and the thermal imager are started, preheated and stabilized, the bearing is tested to start working, the rotating speed and the axial load of the bearing are gradually increased until the rotating speed and the axial load are close to the actual working condition, and the temperature distribution of the local position in the bearing can be obtained by an image obtained by the thermal imager at the moment;
step three: the servo motor is controlled to rotate at a slow speed, the thermal imager can be driven to rotate around the shaft, and the temperature of the whole-circle retainer or the rolling body of the test bearing and the temperature of the test bearing ring can be obtained in a period of rotation of the thermal imager;
step four: the coded disc reads the position information of the test bearing, the real-time position of the thermal imager can be obtained through calculation, and the temperature information measured by the thermal imager corresponds to the position information of the thermal imager, so that the temperature field distribution condition of the surface of the test bearing is obtained.
The invention relates to a temperature field measuring device and a temperature field measuring method for a rolling bearing test, which measure a temperature field in a non-contact mode, and set lubricating oil isolation or blocking measures (germanium glass) at the accessories of a bearing temperature measuring area in order to reduce the influence of lubricating oil on the measuring precision as much as possible. On the premise of not influencing the lubricating effect of lubricating oil, the purging module is designed to blow away randomly splashed oil mist, so that excessive oil films are prevented from being accumulated on the surface of the germanium glass, and the precision of non-contact testing is improved.
Drawings
Fig. 1 is a schematic structural diagram of a temperature field measuring device for a rolling bearing test of the invention.
Fig. 2 is a schematic view of an axial loading end cover of the temperature field measuring device for the rolling bearing test of the invention.
In the figure, 1 is a code disc; 2 is a motor; 3, belt transmission; 4 is an end cover; 5 is a support bearing; 6 is an axial loading disc; 7 is a test bearing; 8 is a servo motor; 9 is a force sensor; 10 is a loading rod; 11 is a thermal imager; 12 is germanium glass; and 13 is a purging module.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
The first embodiment is as follows: as shown in fig. 1, the temperature field measuring device for the rolling bearing test according to the present embodiment includes a measuring portion, a transmission portion and a light path cleaning portion,
the measuring part comprises a thermal imager,
the transmission part comprises a servo motor, a force sensor, a loading rod, a code disc, a motor, a belt transmission part, a support bearing, an axial loading disc, a test bearing and an end cover,
the optical path cleaning part comprises germanium glass and a purging module,
a thermal imager is arranged on an end cover of the outer box body through a hole, the head of the thermal imager extends into the hole, and the rest part of the thermal imager is supported by a bracket on the end cover;
a main shaft of the servo motor is connected with the end cover through a transmission belt wheel, the motor is connected with the end cover through belt transmission, and the coded disc is connected with the motor; the middle of the end cover and the transmission belt wheel is provided with a hole for the axial loading rod to pass through; the servo motor is connected with the loading rod through a force sensor; the outer ring of the end cover is connected with the box body through a supporting bearing;
one end of the loading rod is connected with an axial loading disc, the axial loading disc applies axial load to the test bearing, the test bearing is arranged on the driving main shaft, the inner ring of the test bearing rotates along with the shaft, and the outer ring of the test bearing and the box body are kept static;
germanium glass is installed in front of the thermal imager lens, and a purging module is installed on the inner side of the end cover.
The transmission part drives the thermal imager and the test bearing to rotate controllably relative to each other, the thermal imager is mounted on the rotating mechanism (end cover) and can complete circumferential scanning on the side face of the bearing, the coded disc is mounted on the driving device (motor) and can record the measurement position of the thermal imager, and the light path cleaning part comprises an oil mist trap and a blowing module at the front end of the thermal imager and avoids the influence of splashed oil mist on the thermal imager.
Example two: as shown in fig. 1, in the temperature field measuring device for a rolling bearing test according to the present invention, the end of the loading rod is a spherical surface.
Example three: as shown in fig. 1, the rolling bearing test temperature field measuring device according to the present embodiment is a rolling bearing test temperature field measuring device according to the present embodiment, wherein the rotation range of the end cap is-180 ° to +180 °.
The thermal imager for temperature measurement is installed on the end cover, when the temperature measurement object is a bearing inner ring or a rolling body rotating at a high speed, the thermal imager is kept still, and the thermal imager can scan the surface temperature of one period every time the bearing rotates for one circle. When the measured object is the bearing outer ring which is kept static, the thermal imager can be driven by the end cover to rotate slowly. The tail part of the thermal imager is connected with the upper computer in a wired mode, the cable is prevented from being wound on the rotating mechanism, and therefore the rotating range of an end cover for mounting the thermal imager ranges from minus 180 degrees to plus 180 degrees.
Example four: as shown in fig. 2, the temperature field measuring device for the rolling bearing test according to the present embodiment is a four-point contact thin-walled bearing in the temperature field measuring device for the rolling bearing test according to the present embodiment.
The outer ring of the end cover is connected with the box body through a four-point contact thin-wall bearing, so that the end cover can be reliably supported under the condition of occupying smaller volume.
Example five: as shown in fig. 2, in the temperature field measuring device for a rolling bearing test according to the present embodiment, the end cap has a spoke-type skeleton structure.
The temperature measurement of the non-contact thermal imager needs to have good light path conditions from a lens to the side face of the bearing, and shielding cannot be carried out between the light path conditions, so that the loading end cover is designed into a spoke type framework structure, and the thermal imager can directly measure the temperature of the surface of the bearing in most time when the end cover rotates along with the bearing.
Example six: as shown in fig. 2, in the temperature field measuring device for the rolling bearing test according to the present embodiment, a purge module is installed inside the end cap, and external compressed air enters the purge module through a nozzle, and is ejected at a high speed through the nozzle to continuously blow off the oil mist on the surface of the germanium glass.
In the designed application environment, the rotation of the shaft and the bearing can stir up a large amount of oil mist to pollute the lens of the thermal imager, so that a protective layer needs to be added in front of the lens. The germanium glass has a higher refractive index, so that the germanium glass is weaker in projection capability on ultraviolet light and visible light, but can pass more infrared light, and therefore a piece of germanium glass is arranged in front of the thermal imager lens to prevent the lens from being polluted by oil mist.
The stirred oil mist can be gradually accumulated on the germanium glass, so that the infrared light passing is influenced, a purging system is arranged on the inner side of the end cover, and external compressed air is introduced into the purging system and is sprayed out through a nozzle at a high speed so as to continuously blow off the oil mist on the surface of the germanium glass.
Example seven: as shown in fig. 2, the temperature field measuring method for the rolling bearing test according to the present embodiment includes the following specific steps:
the method comprises the following steps: firstly, measuring the surface temperature of a test bearing by using a contact temperature sensor, and calibrating the emissivity of a thermal imager on line by using the data;
step two: after the motor and the thermal imager are started, preheated and stabilized, the bearing is tested to start working, the rotating speed and the axial load of the bearing are gradually increased until the rotating speed and the axial load are close to the actual working condition, and the temperature distribution of the local position in the bearing can be obtained by an image obtained by the thermal imager at the moment;
step three: the servo motor is controlled to rotate at a slow speed, the thermal imager can be driven to rotate around the shaft, and the temperature of the bearing retainer or the rolling body to be tested and the temperature of the bearing ring to be tested in the whole cycle of the rotation of the thermal imager can be obtained;
step four: the coded disc reads the position information of the test bearing, the real-time position of the thermal imager can be obtained through calculation, and the temperature information measured by the thermal imager corresponds to the position information of the thermal imager, so that the temperature field distribution condition of the surface of the test bearing is obtained.
The bearing to be measured is installed on the shaft, the inner ring rotates along with the shaft, the outer ring and the box body are kept static, and the axial load of the bearing is applied to the outer ring of the bearing through the axial loading disc. When external force is applied to the outer side of the loading disc, the loading disc applies the force to the outer ring of the bearing from the inner side wheel edge in a uniformly distributed load mode, and therefore axial load between the inner ring and the outer ring of the bearing in actual working conditions is simulated and achieved.
The above description is only a preferred embodiment of the present invention, and these embodiments are based on different implementations of the present invention, and the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A temperature field measuring device for a rolling bearing test is characterized by comprising a measuring part, a transmission part and a light path cleaning part,
the measuring part comprises a thermal imager (11),
the transmission part comprises a servo motor (8), a force sensor (9), a loading rod (10), a coded disc (1), a motor (2), a belt transmission structure (3), a supporting bearing (5), an axial loading disc (6), a testing bearing (7) and an end cover (4),
the optical path cleaning part comprises germanium glass (12) and a purging module (13),
a thermal imager (11) is arranged on an opening of an end cover (4) of the outer box body, the head of the thermal imager (11) extends into the opening, and the rest part of the thermal imager (11) is supported by a bracket on the end cover (4);
the motor (2) is connected with the end cover (4) through the belt transmission structure (3), and the coded disc (1) is connected with the motor (2); the middle of the end cover (4) and the transmission belt wheel is provided with a hole for the axial loading rod (10) to pass through; the servo motor (8) is connected with the loading rod (10) through a force sensor (9); the outer ring of the end cover (4) is connected with the box body through a supporting bearing (5);
one end of the loading rod (10) is connected with the axial loading disc (6), the axial loading disc (6) pushes the test bearing (7), the test bearing (7) is installed on the rotating shaft, the inner ring of the test bearing (7) rotates along with the rotating shaft, and the outer ring of the test bearing (7) and the box body are kept static;
germanium glass (12) is installed in front of a lens of the thermal imager (11), and a purging module (13) is installed on the inner side of the end cover (4).
2. A rolling bearing test temperature field measuring device according to claim 1, characterized in that the end of the loading rod (10) is spherical.
3. A temperature field measuring device for a rolling bearing test according to claim 1, characterized in that the rotation range of the end cap (4) is-180 ° to +180 °.
4. A temperature field measuring device for rolling bearing tests according to claim 1, characterized in that said support bearing (5) is a four-point contact thin-walled bearing.
5. The temperature field measuring device for the rolling bearing test according to claim 1, wherein the axial loading disc (6) is of a spoke-type skeleton structure.
6. The temperature field measuring device for the rolling bearing test is characterized in that a purging module (13) is installed on the inner side of the end cover (4), outside compressed air enters the purging module (13) and is ejected through a nozzle at a high speed so as to continuously blow away oil mist on the surface of the germanium glass (12).
7. A temperature field measuring method for a rolling bearing test is characterized by comprising the following specific steps:
the method comprises the following steps: firstly, measuring the surface temperature of a test bearing (7) by using a contact temperature sensor, and calibrating the emissivity of a thermal imager (11) on line by using the data;
step two: after the servo motor (8) and the thermal imager (11) are started, preheated and stabilized, the test bearing (7) starts to work, the rotating speed and the axial load of the test bearing are gradually increased until the test bearing is close to the actual working condition, and the temperature distribution of the inner ring of the bearing can be obtained by an image obtained by the thermal imager (11);
step three: the motor (2) is controlled to rotate at a slow speed, the thermal imager (11) can be driven to rotate around a shaft, and the temperature of a retainer or a rolling body of the test bearing (7) and the temperature of the outer ring of the test bearing (7) can be obtained in a period of rotation of the thermal imager (11);
step four: the coded disc (1) is used for reading the position information of the test bearing (7), the real-time position of the thermal imager (11) can be obtained through calculation, and the temperature information measured by the thermal imager (11) corresponds to the position information of the thermal imager (11), so that the temperature field distribution condition of the surface of the test bearing (7) is obtained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810121133.2A CN108168889B (en) | 2018-02-07 | 2018-02-07 | Temperature field measuring device and method for rolling bearing test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810121133.2A CN108168889B (en) | 2018-02-07 | 2018-02-07 | Temperature field measuring device and method for rolling bearing test |
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| CN108168889A CN108168889A (en) | 2018-06-15 |
| CN108168889B true CN108168889B (en) | 2020-02-18 |
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| CN110261113A (en) * | 2019-07-19 | 2019-09-20 | 洛阳高测精密机械有限公司 | A kind of slice mainshaft bearing lubricating grease working performance test device and method |
| CN110571985B (en) * | 2019-09-11 | 2022-01-21 | 深圳市速锋科技股份有限公司 | Preheating running-in method of high-speed electric spindle |
| AT17903U1 (en) * | 2019-12-05 | 2023-07-15 | Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi | Measuring element for carrying out measurements on bearing shells in the arms of a universal joint |
| CN111256861A (en) * | 2020-03-23 | 2020-06-09 | 江苏嘉轩智能工业科技股份有限公司 | Bearing inner ring temperature measuring device and method for outer rotor permanent magnet electric roller |
| CN111487058B (en) * | 2020-04-27 | 2022-05-24 | 河南科技大学 | Rolling bearing slip test method |
| CN113504260B (en) * | 2021-06-15 | 2022-10-11 | 南京航空航天大学 | Experimental device for be used for rotor oil spout heat convection test |
| CN114061785A (en) * | 2021-11-17 | 2022-02-18 | 青岛理工大学 | Method and system for measuring temperature field inside bearing |
| CN114755015B (en) * | 2022-06-17 | 2023-04-07 | 哈尔滨科锐同创机模制造有限公司 | Bearing tester intensification testing arrangement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06273279A (en) * | 1993-03-23 | 1994-09-30 | Mitsubishi Motors Corp | Seizure test device for bearing metal |
| JP2003083352A (en) * | 2001-09-11 | 2003-03-19 | Nsk Ltd | Rolling bearing unit with senor |
| CN101491881B (en) * | 2008-01-24 | 2011-04-06 | 铜陵科达车辆装备有限责任公司 | Roller bearing grinder for railway freight car wheel pair |
| CN101819091B (en) * | 2010-03-25 | 2011-08-17 | 重庆大学 | Combined intelligent monitoring bearing |
| CN106989831B (en) * | 2017-05-27 | 2019-05-24 | 中国航发湖南动力机械研究所 | A kind of rolling bearing Temperature Distribution on-line testing warning device and application method |
| CN107367388B (en) * | 2017-08-25 | 2023-02-24 | 西安工业大学 | Aviation antifriction bearing thermal stability testing arrangement |
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