CN103091104A - Bearing vibration signal acquisition testing device - Google Patents
Bearing vibration signal acquisition testing device Download PDFInfo
- Publication number
- CN103091104A CN103091104A CN2013100210772A CN201310021077A CN103091104A CN 103091104 A CN103091104 A CN 103091104A CN 2013100210772 A CN2013100210772 A CN 2013100210772A CN 201310021077 A CN201310021077 A CN 201310021077A CN 103091104 A CN103091104 A CN 103091104A
- Authority
- CN
- China
- Prior art keywords
- bearing
- bearings
- vibration signal
- load
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a bearing vibration signal acquisition testing device which comprises a motor base and a main shaft connected with a motor shaft. The main shaft is supported by two bearing fixed on bearing pedestals of the motor base, and two bearings are not only supporting bearings, but also testing bearings used for acquisition of bearing inner ring rotation speed. A load bearing is arranged on the main shaft between the two testing bearings and used for loading the axial force, shaft steps are arranged at two ends of a load bearing inner ring on the main shaft and limit axial movement of the inner ring. Due to the design method, the structure of the testing device is simple, the axial force can be further conveniently adjusted through gravity of a weight set, and the testing device does not need to be disassembled and assembled repeatedly. The situation that in the running process of the testing bearings, due to the axial loading force fluctuation, vibration signal acquisition deviation happens is fundamentally avoided.
Description
Technical field
The present invention relates to a kind of bearing vibration signal acquisition test device, belong to the rolling ball bearing technical field of measurement and test.
Background technology
Vibration signal is an important indicator of a sign bearing operation characteristic.(rotating speed and axial load) analyzed and furtherd investigate the vibration characteristics of rolling ball bearing under special experiment condition, is the research method of the important means of the assessment quality of bearing and running status.
Existing rolling ball bearing vibration signal acquisition device adopts complicated kinematic train, usually adopt the array spring bearing in drive shaft system, acceleration transducer is when the collecting test bearing vibration signal, the vibration signal of the spring bearing in drive shaft system also is passed to test bearing with transmission shaft, and confuse in same test spectrogram with the vibration signal of test bearing, follow-up signal is processed caused certain interference and difficulty with peeling off to analyze.Simultaneously, existing rolling ball bearing vibration signal acquisition device adopts comparatively complicated load maintainer that test bearing is loaded, and makes whole signal pickup assembly complex structure, and processing and manufacturing increases with the assembling difficulty.
Summary of the invention
For overcoming the defective of prior art, the invention provides that a kind of load mode is simple, axially loading force long-term stability, convenient processing and manufacture, easy-operating bearing vibration signal collection experiment device.
For solving the above technical matters, the invention provides following technical scheme: a kind of bearing vibration signal acquisition test device, described test unit comprises support and the main shaft that is connected motor shaft, main shaft is by the bearings on two bearing seats that are fixed in support, two bearings not only are spring bearing but also be the test bearing for collection bearing inner race rotating speed, main shaft between two test bearing is provided with for the load bearings that loads axial force, and on main shaft, the two ends of load bearings inner ring have the axially movable axle of inner ring of restriction rank.
Further, on described support, the outside of test bearing is provided with two pulley bases, and the axle again between two pulley bases connects, and this pulley base inboard, axle two ends has fixed pulley.
Further, described load bearings excircle connection bearing overcoat, bearing outside are annular, and two nose circle faces of bearing outside are fixedly connected with shoulder block, and two shoulder blocks clamp the load bearings outer ring; The horizontal two ends of bearing outside are fixedly connected with load bar, and load bar connect to load an end of rope, and the other end that loads rope is walked around fixed pulley and connected weight variable weight group.
This bearing vibration signal acquisition test device that the present invention relates to, its principle of work is as follows: under the driving of motor, main shaft drives load bearings and test bearing is rotated simultaneously, makes test bearing move under axial loading; Acceleration transducer can be installed on bearing seat right-hand member test bearing directly over, the accelerated degree of the vibration signal that produces in operational process of test bearing sensor is caught, and is converted into voltage signal and exports acquisition system to.Above-mentioned bearing vibration signal acquisition test device is suitable for the vibration signals collecting of the single cover bearing of test bearing under certain axially loading force and rotating speed.Under the effect of pulley, pulley bearings and loading rope, the gravity of weight group can directly be passed to load bearings, and under the effect of main shaft, axial force is passed to test bearing.Can by regulating the weight of weight group, regulate easily the axial force of test bearing.Above-mentioned bearing vibration signal acquisition test device utilizes acceleration transducer by the rotating speed of regulating electric machine and the quantity of weight group, obtains the vibration signal of test bearing when different rotating speeds and axial load.
This bearing vibration signal acquisition test device that the present invention relates to combines rotating speed and two kinds of main operating modes of axial load test bearing is examined.This design makes proving installation simple in structure, also can be easily regulates the size of axial force by the gravity of weight group, need not proving installation is carried out repeatedly dismounting.Fundamentally avoided the deviation of the vibration signals collecting that test bearing causes because of the axial fluctuation of loading force in operational process.
Description of drawings
Fig. 1 is bearing vibration signal acquisition test device 3-D view;
Fig. 2 is bearing vibration signal acquisition test device planar elevation view;
Embodiment
As shown in Fig. 1-2, bearing vibration signal acquisition test device mainly comprise test bearing bearing seat 1 and shoulder block 2, main shaft 3, be fixed in load bearings 4 between two test bearing, load bearings overcoat 5, load bearings annular shoulder block 6, another test bearing 7, the acceleration transducer 8 that is used for measuring test bearing inner ring rotating speed, test bearing shoulder block 9, the loading rope 10 that connects load bar, fixed pulley 11, pulley bearings 12, the pulley spindle 13 that is used for supporting fixed pulley 11, hold-down nut 14, pulley base 15, support 16, weight group 17 that counterweight weight is adjustable.
As shown in Figure 1, weight group 17 is by fixed pulley 11 and load rope 10, to load bearings overcoat 5, the annular shoulder block 6 that is arranged on load bearings 4 right sides on load bearings overcoat 5, and is converted into its loading force vertically to the pulling force that loads rope 10 by screw fastening the weight transmitting of weight group 17.The right-hand axis of load bearings 4 is provided with axle rank, and its diameter is greater than the inner ring diameter of load bearings 4; Simultaneously, be provided with same axle rank in the left side of test bearing 7, its diameter less than the diameter of outer ring, is arranged on 9 effects of playing the right location of test bearing 7 of test bearing shoulder block on its right side greater than the inside race diameter of test bearing 7.Therefore, the effect of load bearings 4 to its right-hand axis rank power is applied to axial force on the inner ring of test bearing 4.
When carrying out vibration signals collecting, at first determine the size of loading force, and by the weight of weight group 17, test bearing 4 is applied axial load, then pass through the rotating speed of motor given system, start acquisition system, can collect the vibration signal under this test condition (rotating speed, axial load).
Embodiment of the present invention does not consist of the restriction to the application's scope; every within the spirit and principle of the present invention design, any modification that one of skill in the art can make, be equal to and replace and within improvement etc. all should be included in protection scope of the present invention.
Claims (3)
1. bearing vibration signal acquisition test device, it is characterized in that, described test unit comprises support and the main shaft that is connected motor shaft, main shaft is by the bearings on two bearing seats that are fixed in support, two bearings not only are spring bearing but also be the test bearing for collection bearing inner race rotating speed, main shaft between two test bearing is provided with for the load bearings that loads axial force, and on main shaft, the two ends of load bearings inner ring have the axially movable axle of inner ring of restriction rank.
2. bearing vibration signal acquisition test device according to claim 1, is characterized in that, on described support, the outside of test bearing is provided with two pulley bases, and the axle again between two pulley bases connects, and this pulley base inboard, axle two ends has fixed pulley.
3. bearing vibration signal acquisition test device according to claim 1, is characterized in that, described load bearings excircle connection bearing overcoat, bearing outside are annular, and two nose circle faces of bearing outside are fixedly connected with shoulder block, and two shoulder blocks clamp the load bearings outer ring; The horizontal two ends of bearing outside are fixedly connected with load bar, and load bar connect to load an end of rope, and the other end that loads rope is walked around fixed pulley and connected weight variable weight group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021077.2A CN103091104B (en) | 2013-01-21 | 2013-01-21 | Bearing vibration signal acquisition test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021077.2A CN103091104B (en) | 2013-01-21 | 2013-01-21 | Bearing vibration signal acquisition test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091104A true CN103091104A (en) | 2013-05-08 |
| CN103091104B CN103091104B (en) | 2015-08-05 |
Family
ID=48203948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021077.2A Active CN103091104B (en) | 2013-01-21 | 2013-01-21 | Bearing vibration signal acquisition test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103091104B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461503A (en) * | 2014-05-20 | 2017-02-22 | 日本精工株式会社 | Ball bearing inspection device and inspection method |
| CN106441550A (en) * | 2016-09-13 | 2017-02-22 | 安徽工程大学 | Bearing vibration signal acquisition device |
| CN107167734A (en) * | 2017-07-12 | 2017-09-15 | 南京航空航天大学 | A kind of ultrasound electric machine starting characteristic method of testing fed back based on lonely pole and device |
| CN111693305A (en) * | 2020-05-25 | 2020-09-22 | 浙江美力汽车弹簧有限公司 | Stabilizer bar durability test device and test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2352015A1 (en) * | 1973-10-17 | 1975-04-30 | Kugelfischer G Schaefer & Co | Roller bearing friction measuring device - inner rings of at least two bearings are mounted on rotating shaft |
| CN202049046U (en) * | 2011-04-22 | 2011-11-23 | 上海振华重工(集团)股份有限公司 | Test bed for large rolling bearing |
| CN202501836U (en) * | 2012-04-01 | 2012-10-24 | 西安康倍机电科技有限公司 | Aerial hydraulic accessory linear displacement load test device |
| CN202614528U (en) * | 2012-03-08 | 2012-12-19 | 江苏大学 | Water lubrication bearing comprehensive testing stand for pump |
-
2013
- 2013-01-21 CN CN201310021077.2A patent/CN103091104B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2352015A1 (en) * | 1973-10-17 | 1975-04-30 | Kugelfischer G Schaefer & Co | Roller bearing friction measuring device - inner rings of at least two bearings are mounted on rotating shaft |
| CN202049046U (en) * | 2011-04-22 | 2011-11-23 | 上海振华重工(集团)股份有限公司 | Test bed for large rolling bearing |
| CN202614528U (en) * | 2012-03-08 | 2012-12-19 | 江苏大学 | Water lubrication bearing comprehensive testing stand for pump |
| CN202501836U (en) * | 2012-04-01 | 2012-10-24 | 西安康倍机电科技有限公司 | Aerial hydraulic accessory linear displacement load test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461503A (en) * | 2014-05-20 | 2017-02-22 | 日本精工株式会社 | Ball bearing inspection device and inspection method |
| CN106461503B (en) * | 2014-05-20 | 2018-11-06 | 日本精工株式会社 | The check device and inspection method of ball bearing |
| CN106441550A (en) * | 2016-09-13 | 2017-02-22 | 安徽工程大学 | Bearing vibration signal acquisition device |
| CN107167734A (en) * | 2017-07-12 | 2017-09-15 | 南京航空航天大学 | A kind of ultrasound electric machine starting characteristic method of testing fed back based on lonely pole and device |
| CN111693305A (en) * | 2020-05-25 | 2020-09-22 | 浙江美力汽车弹簧有限公司 | Stabilizer bar durability test device and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103091104B (en) | 2015-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103115774B (en) | Axially with radial compound load bearings test unit | |
| CN201514301U (en) | Rolling bearing frictional moment/rotation speed measurement device | |
| CN107024353A (en) | A kind of sealed bearings combination property simulation test machine | |
| CN106017888B (en) | A kind of semifloating axle shaft rotary bending fatigue bench test device | |
| CN202614529U (en) | Noise measuring device for rolling bearing | |
| CN107117332A (en) | A kind of test platform of small-sized multi-rotor unmanned aerial vehicle rotor power system | |
| CN202720121U (en) | Precision miniature bearing dynamic performance testing device | |
| CN101893512B (en) | Modularized static stiffness testing device for angular contact ball bearings | |
| CN105699081B (en) | Bearing shaft current damages comprehensive characteristic test device | |
| CN105651514A (en) | Comprehensive performance testing device for rolling ball bearing | |
| CN104748965B (en) | Method for simulating bearing combination fault by rolling bearing combination fault simulation experiment table | |
| CN109018430B (en) | Rotorcraft blade performance test bench | |
| CN103091104B (en) | Bearing vibration signal acquisition test device | |
| CN102519639A (en) | Friction torque measurement apparatus of horizontal bearing | |
| CN101762353A (en) | CVT (Contiuously Variable transmission) axial force test device | |
| CN107719696A (en) | A kind of dynamic characteristics synchronous testing device of axially compact type aircraft propeller | |
| US9683915B2 (en) | Inspection device | |
| CN105841963B (en) | A kind of friction-loaded brake type bearing running testing stand | |
| CN116046387A (en) | General durability testing machine and testing method for hub bearing unit | |
| CN203396525U (en) | Testing machine for friction torque of automobile hub bearing | |
| CN201673013U (en) | Dynamic calibration device of roller reaction type brake tester | |
| CN111829802A (en) | Multi-roller dynamic balance vibration coupling test bed and test method | |
| CN205620130U (en) | Friction loading braking formula bearing running -in test platform | |
| CN103105226B (en) | Pairing bearing vibration signal collection device | |
| CN106441550A (en) | Bearing vibration signal acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |