CN106769039B - A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part - Google Patents

A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part Download PDF

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Publication number
CN106769039B
CN106769039B CN201611146107.2A CN201611146107A CN106769039B CN 106769039 B CN106769039 B CN 106769039B CN 201611146107 A CN201611146107 A CN 201611146107A CN 106769039 B CN106769039 B CN 106769039B
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bearing
module
sensor
monitoring
rotary
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CN106769039A (en
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朱永生
闫柯
洪军
王方哲
严小云
刘煜炜
曹鹏辉
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Xian Jiaotong University
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Xian Jiaotong University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings
    • G01M13/045Acoustic or vibration analysis

Abstract

A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part, embedded sensors module, wireless communication module and wireless charging receiving module on the rotary components of bearing, to realize the status monitoring to bearing rotary component;Sensor module includes temperature sensor, vibration acceleration sensor, vibration displacement sensor, velocity sensor, force snesor, monitors the temperature of bearing internal external circle, the vibration acceleration of inner ring, bearing inner race displacement, revolving speed and bearing pre-fastening etc. with this;And then by analyzing physical signal as above, the health status of Comprehensive Assessment bearing;It is integrated with wireless power supply module and wireless communication module in entire mounting assembly, under the premise of not changing shafting bearing size, guaranteeing mounting assembly original function, realizes the long term monitoring to slewing key components and parts.

Description

A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part
Technical field
The present invention relates to mechanized equipment key components and parts health status dynamic monitoring fields, in particular to a kind of to be suitable for rolling The mounting assembly of dynamic bearing rotary part monitoring, is the improvement of on-line monitoring system and common components, especially fixed to bearing The transformation of position spacer, the bearings mounting assembly such as locking nut, can online bearing monitor rotary part (including bearing internal external Lasso, retainer) temperature, speed, vibration signal, be based on these signal of measuring in real time, cooperate proprietary bearing operating status Assessment and fault diagnosis algorithm realize the perception to rolling bearing operating status, have so that plain bearing be made to become to operating condition The intelligent bearing of perceptional function.
Background technique
Rolling bearing is widely used in the key areas such as aerospace, railway, steamer, heavy duty machine tools, it is as whirler The key components and parts of tool play support shafting and transmit the important function of power.Meanwhile rolling bearing is also that rotating machinery is most thin A weak ring, according to statistics, the failure 30% of rotating machinery are as caused by bearing damage, so the operating status of rolling bearing is just The performance of whole equipment is often directly affected whether often.
Bear vibration mainly is monitored by laying vibrating sensor on bearing block to the status monitoring of bearing at this stage Situation.However the vibrating sensor by being mounted on bearing block obtains vibration signal, although picking up signal is convenient, due to The Decay Rate of the faint property and transmitting of fault-signal, so that it is extremely difficult to the monitoring of bearing initial failure, lead to fault-signal The corresponding relationship of characterization and the source of trouble and fault type is difficult to determine, fault diagnosis accuracy is lower.The vibration of bearing is mainly It is generated by its rotary part, so if bearing rotary component vibration signal can be monitored directly, avoids signal transduction process Decaying, will have a very important significance the status monitoring of bearing.
In addition, temperature is one of most common signal in state monitoring of rolling bearing, any exception of bearing usually all can It is displayed by temperature change.The lasso or bearing static in bearing are mainly passed through to the monitoring of rolling bearing temperature at present Temperature sensor is laid on seat, or is realized using infrared contactless mode.However, studies have shown that Bearing inner temperature is past It is past higher compared with outer collar temperature, sensitiveer, the existing thermometric side on the static lasso of bearing or bearing block is reacted to state change Formula reactiveness can not change caused temperature change in time.On the other hand, infrared measurement of temperature precision is lower, (such as by working environment Mist of oil, pollutant) influence the needs for not being suitable for industry spot monitoring for a long time greatly.Therefore, how in accurate measurements bearing every The temperature of the rotary parts such as set, is one of technology urgently needed for bearing condition monitoring.
Based on above-mentioned demand, multiple sensors are integrated in bearing body, realize what bearing and sensor were combined closely Intelligent bearing concept is suggested.Shao Yimin of University Of Chongqing et al. devises a kind of intelligent bearing of external hanging type structure, passes through Compound sensor and bearing face are carried out embedded combination, realized to bearing operation process by the slot type structure on bearing outer ring The acquisition of middle signal.Studies have shown that the signal on bearing rotary component is more advantageous to the health status of reaction bearing, especially axis Hold the temperature signal on rotary part.And the program is to be laid with sensor on bearing stationary parts, it is difficult to measure rotary part On critical physical parameter.In addition bearing arrangement multiplicity, the program are only applicable to the structure of the slot type on bearing outer ring, have very Big limitation.Liu Hao of the National University of Defense technology et al. has studied the intelligent bearing of damascene structures, by opening in bearing outer ring Slot is embedded in the mode of microsensor to monitor the operating state signal of bearing.Thus destroy the integrality of bearing, Er Qiewu Method is monitored bearing inner race situation.In addition contactless test is easy to be influenced by environment, under conditions of mist of oil It measures and is highly susceptible to interfere.The patent that Zhouyan Tech Co., Ltd, Luoyang proposes --- when inner ring high speed rotation Inner ring measuring method of temperature needs to install a bearing insert additional in Bearing outer, keeps shafting complicated, does not meet bearing reality Working environment.A kind of Xi'an Communications University's Zhu's immortality et al. patent of invention --- lathe integrated monitoring ring device is mainly logical The vibration of test bearing outer ring and temperature are crossed, however the temperature of outer ring has lag compared to inner ring, and the device increases axis It is components, keeps shafting complicated.
In addition, the energy supply of rotary test system is a technological difficulties all the time, especially in the normal work of bearing The supply of energy is realized in the environment of work.It essentially consists in bearing to be mounted in bearing block, narrow space and environment complexity.Compared with It may be implemented the wireless supply of energy for mature electromagnetic coupling wireless power, department of mechanical engineering, armored force engineering institute fourth rushes, Zhao Yongdong etc. by contactless inductive power supply technique realize torque measurement, but general electromagnetic coupling power supply scheme be difficult to meet it is narrow Energy supply in small ferromagnetic space, and open alternating electromagnetic field is frequently accompanied by eddy current effect, and this can bring Unnecessary heat source, and then influence the test result of bearing or even entire shafting.Photoelectric conversion energy supply is that there is no vortex The scheme of effect, it, come driving energy receiving end, and then enables luminous energy to be converted into electric energy to meet system by strong illumination Amount demand, but for the working environment of bearing, this energy supply scheme is just difficult to deal with, and the environment with greasy dirt and mist of oil is very It is easy the propagation of obstruction light, deposition of the greasy dirt at energy acceptance end is also unavoidable.
Summary of the invention
In order to overcome the defects of the prior art described above, it is suitable for rolling bearing the purpose of the present invention is to provide one kind to rotate The mounting assembly of component monitoring, which does not destroy bearing arrangement, and reduces signaling path, accurately measures The signals such as vibration, the temperature of bearing rotary lasso inner ring and outer ring, to realize that Incipient Fault Diagnosis provides technical support.
In order to achieve the above object, The technical solution adopted by the invention is as follows:
A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part, which is characterized in that in close proximity to the rotation of bearing Embedded sensors module, wireless communication module and wireless charging receiving module on component, to realize the shape to bearing rotary component State monitoring.
The rotary components include locking nut and spacer, and the locking nut and spacer are radially circumferentially square To slot is offered, sensor module, wireless communication module and wireless charging receiving module are provided in slot.
The sensor module includes temperature sensor, and temperature sensor connects it with bearing inner race end face by spring Touching.
The data tested are transferred on host computer, by upper by the wireless communication module by wireless communication The assessment to bearing state is realized in the analysis of machine.
The wireless charging receiving module is supplied with energy is collectively constituted with its matching used wireless charging transmitting module To module, wireless charging receiving module is arranged in the radial direction of bearing using multiple receiving coils, or is connect using multiple months dentition formulas Take-up circle non-close is arranged in the radial direction of bearing, realizes the energy supply to test macro;Wireless charging transmitting module is using collection The about energy transmitting end of formula, i.e. transmitting coil are tangent using unicoil but are not contacted with axis or abutment sleeve.
Advantages of the present invention:
1, the arrangement of transmitting coil is small much compared to traditional electromagnetic coupling transmitting terminal, is installed to axis with can be convenient It holds inside seat, makes receiving end inductive coupling to electric energy by the electromagnetic field more concentrated.
2, wireless charging transmitting module makes eddy current effect reduce or even disappear using intensive energy transmitting end.
3, using the form of the embedded sensors on rotary components, be closer to signal source, the data measured compared to The prior art is more accurate.It may be implemented to rotary part contact type measurement.
4, the present invention does not change the structure of bearing itself, carries out the key that processing is embedded, rotates to machinery in rotary components Spare parts logistics monitoring, such as the temperature monitoring, speed monitoring and vibration monitoring of bearing inner race.It is versatile, bearing is not being influenced just Often work.
5, it is contacted with bearing inner race end face by spring due to temperature sensor, be close to the lasso of bearing rotary, it can Under mist environment, to realize the on-line monitoring of tested point temperature in complex environment.
6, multi-spot temperature testing may be implemented, by laying vibration and velocity sensor, realize the prison to vibration, speed It surveys.
7, it using the wireless self-networking communication technology, realizes multiple bearing monitoring, and sensor network can be set up.
Detailed description of the invention
Fig. 1 is each component position view under actual condition of the present invention, wherein Fig. 1 (a) is that bearing inner race or so spacer is fixed Position schematic diagram;Fig. 1 (b) is bearing inner race or so using locking nut and spacer positioning schematic diagram.
Fig. 2 is the principle of the present invention block diagram.
Fig. 3 is the mounting assembly structural schematic diagram of single rolling bearing rotary part monitoring.Fig. 3 (a) is main view, Fig. 3 It (b) is side view.
Fig. 4 is the signal of wireless power receiving module coil, wherein Fig. 4 (a) is using crescent coil power supply schematic diagram; Fig. 4 (b) is using multi-coil electrical schematic.
Specific embodiment
Specific implementation process of the present invention is further explained with reference to the accompanying drawing.
Referring to Fig.1, Fig. 3, a kind of mounting assembly suitable for the monitoring of rolling bearing rotary part, which is characterized in that tight The build-in-test system 7 on the rotary components 1,3,4 of bearing 2 includes sensor module 8, radio communication mold in test macro 7 Block 9 and wireless charging receiving module 10, to realize the status monitoring to bearing rotary component.It is solid that rolling bearing generallys use outer ring Fixed, statement is unfolded in the mode of inner ring rotation, this specification by taking the working method as an example, for outer ring rotating, the fixed work of inner ring It is equally applicable as mode.
The rotary components include locking nut 4 and spacer 1,3, the locking nut 4 and spacer 1,3 radially edge Circumferencial direction offer slot 12, test macro 7, including sensor module 8, wireless communication module 9 and nothing are provided in slot 12 Line charge electricity receiving module 10, for bearing during axially position, locking nut and positioning spacer are common components, by Processing fluting is carried out on such rotary part, the sensors such as upper vibration, temperature are buried in slot, to realize to bearing rotary component State aware.
The sensor module 8 includes temperature sensor, and temperature sensor makes itself and bearing inner race end face by spring Contact.
The data tested, are transferred on host computer, by upper by the wireless communication module 9 by wireless communication Analyzing for machine comes, and realizes the assessment to bearing state.
Referring to Fig. 4, the wireless charging receiving module 10 is total to with its matching used wireless charging transmitting module 11 With composition energy supply module, wireless charging receiving module 10 is arranged in the radial direction of bearing using multiple receiving coils 13, or The radial direction of bearing 2 was arranged in using multiple months 14 receiving coil non-close of dentition formula, and then realizes the energy supply to test macro; For wireless charging transmitting module 11 using intensive energy transmitting end, i.e., transmitting coil is tangent using unicoil but is not contacted with axis 5 or abutment sleeve, reduce eddy current effect.
The working principle of the invention:
(1) as shown in Fig. 2, according to actual condition demand, then sensor needed for selecting is integrated in rolling bearing rotation In the mounting assembly of rotation member monitoring, by the bearing number monitored needed for counting, network node number, placement sensor are determined Network;
(2) installation of rotary components: removing original locking nut and cone spacer from shafting, changes the present invention with interior Other components are installed, arrange signal receiving antenna by the mounting assembly for setting module, and the foregoing description can be realized to bearing The monitoring of inner ring working condition;
(3) energy supply of entire component test system is realized by wireless power.It is fed back to by sensor Information, the working condition of Comprehensive Assessment bearing utilize wireless sensor network skill by the mounting arrangements of multiple monitoring assemblies Art, and then realize the real-time monitoring of entire shafting key rotating parts;
The working principle of the invention is not in conclusion the case where destroying bearing arrangement and other Axial parts structures Under, the devices such as integrated sensor module are embedded by the improvement-to existing bearing auxiliary, sensor includes temperature sensor, vibration Dynamic acceleration transducer, vibration displacement sensor, velocity sensor, force snesor, with this come monitor bearing internal external circle temperature, Vibration acceleration, bearing inner race displacement, revolving speed and bearing pre-fastening of inner ring etc..And then by physical signal as above point Analysis, the health status of Comprehensive Assessment bearing.It is integrated with wireless power supply module and wireless communication module in entire mounting assembly, not Under the premise of changing shafting bearing size, guaranteeing mounting assembly original function, the length to slewing key components and parts is realized Phase monitoring.By wireless sensor network technology, the status monitoring of shaft multiple bearing is realized, and then can evaluate entire shafting The state of work.

Claims (2)

1. a kind of mounting assembly suitable for the monitoring of rolling bearing rotary part, which is characterized in that in close proximity to the rotation group of bearing Embedded sensors module, wireless communication module and wireless charging receiving module on part, to realize the state to bearing rotary component Monitoring, the rotary components include locking nut and spacer, and the locking nut and spacer are radially circumferentially Slot is offered, sensor module, wireless communication module and wireless charging receiving module, the sensor module are provided in slot Comprising temperature sensor, the temperature sensor contacts it with bearing inner race end face by spring, and the sensor further includes Vibrating sensor;
The wireless charging receiving module collectively constitutes energy supply with its matching used wireless charging transmitting module Module, wireless charging receiving module is arranged in the radial direction of bearing using multiple receiving coils, or is received using multiple months dentition formulas Coil non-close is arranged in the radial direction of bearing, realizes the energy supply to test macro;Wireless charging transmitting module is using intensive The energy transmitting end of formula, i.e. transmitting coil are tangent using unicoil but are not contacted with axis or abutment sleeve.
2. a kind of mounting assembly suitable for the monitoring of rolling bearing rotary part according to claim 1, which is characterized in that The data tested are transferred on host computer by the wireless communication module by wireless communication, pass through the analysis of host computer Out, the assessment to bearing state is realized.
CN201611146107.2A 2016-12-13 2016-12-13 A kind of mounting assembly suitable for the monitoring of rolling bearing rotary part Active CN106769039B (en)

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CN107192555A (en) * 2017-05-31 2017-09-22 西人马(厦门)科技有限公司 The detection means and method of bearing
EP3583616A4 (en) * 2017-06-08 2020-07-29 Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi A mechanical embodiment providing continuous wireless power transmission on cardan shaft
DE102017212283A1 (en) 2017-07-18 2019-01-24 SKF Aerospace France S.A.S A mechanical part provided with a sensor
CN109425300A (en) * 2017-09-04 2019-03-05 中车株洲电力机车研究所有限公司 The measuring device and measuring method of Wind turbines pitch variable bearings Internal and external cycle relative displacement
CN108507626A (en) * 2018-06-25 2018-09-07 西安交通大学 A kind of bearing movable component temperature-speed sync monitoring method based on quantum dot
CN109630542B (en) * 2018-12-18 2020-01-07 上海交通大学 Intelligent bearing with built-in wireless sensor and self-powered function
CN110937081B (en) * 2019-11-15 2021-06-01 沪东中华造船(集团)有限公司 Mounting method of electric eddy current displacement sensor for stern tube bearing
CN111413092A (en) * 2019-12-31 2020-07-14 太原科技大学 Testing device and testing method for sliding rate of high-speed rolling bearing retainer

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CN201828352U (en) * 2010-10-23 2011-05-11 洛阳轴研科技股份有限公司 Multipoint temperature testing device for bearing inner ring
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