CN102353540A - Slip testing apparatus for high-speed rolling bearing - Google Patents
Slip testing apparatus for high-speed rolling bearing Download PDFInfo
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- CN102353540A CN102353540A CN2011101800890A CN201110180089A CN102353540A CN 102353540 A CN102353540 A CN 102353540A CN 2011101800890 A CN2011101800890 A CN 2011101800890A CN 201110180089 A CN201110180089 A CN 201110180089A CN 102353540 A CN102353540 A CN 102353540A
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Abstract
The invention discloses a slip testing apparatus for a high-speed rolling bearing. The apparatus comprises a high speed electric spindle and a low speed electric spindle, wherein the high speed electric spindle and the low speed electric spindle are arranged on a support and axial directions of the two spindles are opposite to each other; a movable bearing and a loading mechanism having a force sensor are arranged between a base plate of the high speed electric spindle and the support. A rolling element is connected with a front end of the high speed electric spindle; a ring body of a tested bearing is connected with a front end of the low speed electric spindle; and a radial load is exerted on the ring body of the tested bearing by the rolling element through the loading mechanism. The high speed electric spindle and the low speed electric spindle are provided with displacement sensors for determining rotating speeds; frequency converters are connected with the high speed electric spindle and the low speed electric spindle; and a data collection processing system controls rotating speeds of the high speed electric spindle and the low speed electric spindle through the frequency converters. And a lubricating device and an infrared temperature measuring device are arranged nearby a contacting portion where the ring body of the tested bearing and the rolling element are contacted; the infrared temperature measuring device inputs a collected oil film temperature signal or a collected contacting portion temperature signal to the data collection processing system; and the force sensor inputs a loading signal to the data collection processing system through a signal amplifier.
Description
Technical field
The invention belongs to bearing test device, be specifically related to a kind of high speed roller bearing slippage test unit.
Background technology
Rolling bearing is to use a kind of very widely important mechanical basic part.Development of modern industry is had higher requirement to the serviceability of rolling bearing, and high rotating speed, long-life bearing more and more receive user's favor.But under the high speed conditions spigot bearing to skid and rub wound be to influence the bearing key factor in serviceable life always.Therefore, the skid research and analysis of failure mechanism of high speed roller bearing is seemed particularly important.At present; Prior art and experimental technique are mostly analyzed rolling bearing integral body as research object; Because the complicacy of rolling bearing influence factor and the uncertainty that rolling body moves in bearing; The result that said method obtains is often not too accurate, can not disclose the essential mechanism that rolling bearing skids and lost efficacy well.Simultaneously, skid and cause not necessarily that the bearing cunning is rubbed and cause surface abrasion and global failure.Can know from existing document analysis, lack for causing that bearing rubs the mechanism Journal of Sex Research of wound under definite slippage factors combine.
Summary of the invention
The object of the invention is to provide a kind of simple and feasible high speed roller bearing slippage test unit; Through dynamic the contact situation of simulation rolling bearing Internal and external cycle with rolling body; Analyze the profound mechanism that high speed roller bearing under each parameter role skids and lost efficacy, and then can influence principal element that the bearing cunning rubs serviceable life and reliability through optimizing with the raising rolling bearing.
In order to achieve the above object, the present invention adopts following technical scheme to be achieved:
A kind of high speed roller bearing slippage test unit is characterized in that, is included in the high, low speed electricity main shaft that axially is oppositely arranged on the support, wherein is provided with expansion bearing and the load maintainer that has force transducer between the base plate of high-speed electric main shaft and the support; Said high-speed electric main shaft front end connects the interchangeable rolling body, and low speed electricity front-end of spindle connects the circle body that is tried bearing through anchor clamps, and rolling body is applied radial load through load maintainer to trying the bearing circle body; Be equipped with the displacement transducer of measuring rotating speed on the said high, low speed electricity main shaft, be connected with the data acquisition processing system signal through transmitter; High, low speed electricity main shaft all is connected with frequency converter, and data acquisition processing system is through the rotating speed of Frequency Converter Control high, low speed electricity main shaft; Tried to be provided with lubricating system and infrared thermometer near bearing circle body and the rolling body contact site; Infrared thermometer inputs to data acquisition processing system with oil film temperature or the contact site temperature signal gathered, and force transducer inputs to data acquisition processing system through signal amplifier with load signal.
In the such scheme, said expansion bearing comprises a bearing seat that is connected with the high-speed electric main shaft base plate, and this bearing seat is connected on the support through a cushion block.Said anchor clamps comprise chuck, are with the tensioning cover on it, and chuck and tensioning cover contact for the axial conical surface, and the tensioning cover is along the circumferential direction installed the circle body that is tried bearing outward, tensioning cover, the circle body that tried bearing are fixed on the chuck in the lump with bolt through gland.
The present invention compared with prior art has the following advantages and the high-lighting effect: can simulate in the rolling bearing flexibly or the dynamic situation that contacts of outer ring and rolling body, each mainly influences parameter to rolling bearing rupture of oil film and surperficial influence of rubbing wound convenient research; And then can analyze under each parameter role the high speed roller bearing Failure Mechanism of skidding; And have simple in structurely, be easy to expansion, install, debugging is convenient; Reliable, advantage such as with low cost.
Description of drawings
Fig. 1 is the structure principle chart of apparatus of the present invention.
Fig. 2 is connected synoptic diagram for trying the bearing circle body among Fig. 1 with anchor clamps.
Fig. 3 rubs the front and rear surfaces shape appearance figure for the sample cunning.Wherein Fig. 3 a is the inner ring original graph; Fig. 3 b is that inner ring rubs wound figure; Fig. 3 c is the rolling body original graph; Fig. 3 d is that rolling body rubs wound figure.
Description of symbols among Fig. 1, Fig. 2: 1-support; The 2-signal amplifier; 3,28-bolt; The 4-cushion block; The 5-bearing seat; The 6-bearing cover; The 7-force transducer; The 8-load maintainer; 9,23-frequency converter; 10,21-cooling device; The 11-high-speed electric main shaft; 12,16-displacement transducer; The 13-rolling body; The 14-lubricating system; The 15-infrared thermometer; 17-low speed electricity main shaft; 18,19-transmitter; The 20-data acquisition processing system; The 22-pull bar; The 24-chuck; 25-tensioning cover; The 26-inner ring; The 27-gland.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further explain, but not as to unique qualification of the present invention.
With reference to Fig. 1, a kind of high speed roller bearing slippage test unit is included in the high, low speed electricity main shaft 11,17 that axially is oppositely arranged on the support 1, wherein is provided with expansion bearing and the load maintainer 8 that has force transducer 7 between the base plate of high-speed electric main shaft and the support; Expansion bearing comprises a bearing seat 5 that is connected with the high-speed electric main shaft base plate, and this bearing seat is connected on the support by bolt 3 through a cushion block 4.The high-speed electric main shaft front end connects interchangeable rolling body 13, and low speed electricity front-end of spindle connects the circle body (inner ring or outer ring) that is tried bearing through anchor clamps, and rolling body is tried the bearing circle body through 8 pairs of load maintainers and applies radial load; Be respectively equipped with the displacement transducer 12,16 of measuring rotating speed on the high, low speed electricity main shaft, be connected with data acquisition processing system 20 signals through transmitter 19,18 respectively; High, low speed electricity main shaft is connected with frequency converter 9,23 respectively, and data acquisition processing system is through the rotating speed of frequency converter 9,23 control high, low speed electricity main shafts; Tried to be provided with lubricating system 14 and the infrared thermometer 15 that peristaltic pump is controlled near bearing circle body and the rolling body contact site; Infrared thermometer inputs to data acquisition processing system with oil film temperature or the contact site temperature signal gathered, and data acquisition processing system can change lubrication circumstances through changing lubricating fluid model and flow.
Force transducer 7 inputs to data acquisition processing system through signal amplifier 2 with load signal.High, low speed electricity main shaft also is connected with water-cooled cooling device 10,21 respectively.Adopt multifunctional data acquisition card in the data acquisition processing system 20; Can gather the displacement signal of the high, low speed electricity main shaft 11,17 that displacement transducer 12 and 16 passes back; Through converting rotary speed information into; By this frequency converter 9 and 23 preset rotating speeds are carried out closed-loop control, thereby the control slip is in the level of regulation.
The present embodiment device can be through control high, low speed electricity main shaft 11 and 17, test rolling body 13 and tried the manufacturing and the rigging error of bearing circle body; Guarantee that the test piece contact site beats as far as possible little; To reduce the excessive influence of beating, also guarantee the security of testing simultaneously to experimental result owing to the high speed rotating workpiece.
The base plate that the high-speed electric main shaft 11 of rolling body 13 is housed can vertically rotate around the fulcrum of bearing seat 5, and the flexibility that helps load changes; Through the thickness of adjustment cushion block 4 and the up-down of bolt 3, guarantee that rolling body 13 and bearing inside/outside circle level are tangent, avoid unbalance loading.It is that line contacts that the adjustment rolling body contacts it with the inside/outside circle, and line parallel among both.
Because the situation that needs test different loads lower bearing to skid is so require the suffered radial load of bearing adjustable flexibly.Below high-speed electric main shaft base plate right-hand member; Connect force transducer 8 with the closely-pitched screw rod; Utilize lever principle to load through moving up and down of control double nut; Apply different radial loads to the rolling body end, this load information can and feed back to adjust in real time through the data acquisition process programmed acquisition.This loading procedure impacts little, simple in structure, dependable performance.
As shown in Figure 2; Anchor clamps comprise chuck 24, are with tensioning cover 25 on it; Help tensioning, fine setting and the loading and unloading of test specimen, chuck contacts for the axial conical surface with the tensioning cover, helps the location and clamps; Along the circumferential direction install inner ring 26 outside the tensioning cover 25, tensioning cover, inner ring are fixed on the chuck in the lump through gland 27 usefulness bolts 28.
The principle of work of apparatus of the present invention is: set the original frequency of high, low speed electricity spindle inverters according to trying the desired slip of bearing; Connect cooling device and lubricating system, via rolling body the circle body that is tried bearing is applied radial load through load maintainer; After on-test; Two electric main shaft 11,17 and the workpiece junction actual displacement of data acquisition processing system through gathering that two displacement transducers 12,16 pass back respectively; And convert tach signal into; Through comparing to revise rotating speed, carry out at certain slip thereby control test with the rotating speed of setting.The circle body contact position oil film temperature that data acquisition processing system is caught rolling body through contactless infrared sensor and tried bearing changes lubricating oil model and flow to obtain the rupture of oil film situation through lubricating system; Data acquisition processing system is through the load maintainer control load; Through changing the sample rolling body and being tried the circle body of bearing and then change workpiece exterior appearance and performance parameter; Test unit of the present invention can be simulated the dynamic situation that contacts of rolling bearing Internal and external cycle and rolling body easily, studies the profound mechanism that high speed roller bearing skids and lost efficacy under each parameter role.This device has simple in structure, is easy to expansion, installs, debugs advantages such as convenient, reliable, with low cost.
Fig. 3 rubs the front and rear surfaces shape appearance figure for rolling body 13 and certain sample inner ring cunning.The sliding behavior of rubbing is designed under certain slippage combination, take place.In Fig. 3, contain various surface topography data and information; Through corresponding with the contact region oil film temperature data of infrared thermometer 15 collections; Each mainly influences parameter the influence of wound is rubbed in rolling bearing rupture of oil film and surface can to make things convenient for research by this, and then can analyze under each parameter role the high speed roller bearing Failure Mechanism of skidding.
Claims (3)
1. a high speed roller bearing slippage test unit is characterized in that, is included in the high, low speed electricity main shaft that axially is oppositely arranged on the support, wherein is provided with expansion bearing and the load maintainer that has force transducer between the base plate of high-speed electric main shaft and the support; Said high-speed electric main shaft front end connects the interchangeable rolling body, and low speed electricity front-end of spindle connects the circle body that is tried bearing through anchor clamps, and rolling body is applied radial load through load maintainer to trying the bearing circle body; Be equipped with the displacement transducer of measuring rotating speed on the said high, low speed electricity main shaft, be connected with the data acquisition processing system signal through transmitter; High, low speed electricity main shaft all is connected with frequency converter, and data acquisition processing system is through the rotating speed of Frequency Converter Control high, low speed electricity main shaft; Tried to be provided with lubricating system and infrared thermometer near bearing circle body and the rolling body contact site; Infrared thermometer inputs to data acquisition processing system with oil film temperature or the contact site temperature signal gathered, and force transducer inputs to data acquisition processing system through signal amplifier with load signal.
2. high speed roller bearing slippage test unit as claimed in claim 1 is characterized in that said expansion bearing comprises a bearing seat that is connected with the high-speed electric main shaft base plate, and this bearing seat is connected on the support through a cushion block.
3. high speed roller bearing slippage test unit as claimed in claim 1; It is characterized in that; Said anchor clamps comprise chuck, are with the tensioning cover on it, and chuck contacts for the axial conical surface with the tensioning cover; The outer installing along the circumferential direction of tensioning cover is tried the circle body of bearing, tensioning cover, the circle body that tried bearing is fixed on the chuck in the lump with bolt through gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110180089 CN102353540B (en) | 2011-06-29 | 2011-06-29 | Slip testing apparatus for high-speed rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110180089 CN102353540B (en) | 2011-06-29 | 2011-06-29 | Slip testing apparatus for high-speed rolling bearing |
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| CN102353540A true CN102353540A (en) | 2012-02-15 |
| CN102353540B CN102353540B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110180089 Expired - Fee Related CN102353540B (en) | 2011-06-29 | 2011-06-29 | Slip testing apparatus for high-speed rolling bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944423A (en) * | 2012-11-13 | 2013-02-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Troubleshooting method of aero-engine rolling rod bearing skidding |
| CN106198019A (en) * | 2016-06-30 | 2016-12-07 | 西安交通大学 | Test of a kind of roll sliding friction life-cycle based on interface friction performance monitoring device |
| CN107063688A (en) * | 2017-04-05 | 2017-08-18 | 上海大学 | Match angular contact ball bearing Dynamic wear test device |
| CN110160788A (en) * | 2019-06-27 | 2019-08-23 | 中广核核电运营有限公司 | A kind of rolling bearing skidding research experiment platform |
| CN111487058A (en) * | 2020-04-27 | 2020-08-04 | 河南科技大学 | Rolling bearing slip test method |
| CN114738389A (en) * | 2022-03-29 | 2022-07-12 | 南京航空航天大学 | Intelligent bearing system for slip diagnosis and slip diagnosis prediction method |
| CN118130090A (en) * | 2024-04-30 | 2024-06-04 | 浙江大学 | Method and system for measuring and calculating slip ratio of cam roller bearing of inner curve hydraulic motor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944423A (en) * | 2012-11-13 | 2013-02-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Troubleshooting method of aero-engine rolling rod bearing skidding |
| CN106198019A (en) * | 2016-06-30 | 2016-12-07 | 西安交通大学 | Test of a kind of roll sliding friction life-cycle based on interface friction performance monitoring device |
| CN106198019B (en) * | 2016-06-30 | 2018-10-23 | 西安交通大学 | A kind of roll sliding friction life-cycle test device based on interface friction performance monitoring |
| CN107063688A (en) * | 2017-04-05 | 2017-08-18 | 上海大学 | Match angular contact ball bearing Dynamic wear test device |
| CN107063688B (en) * | 2017-04-05 | 2019-06-25 | 上海大学 | Match angular contact ball bearing Dynamic wear test device |
| CN110160788A (en) * | 2019-06-27 | 2019-08-23 | 中广核核电运营有限公司 | A kind of rolling bearing skidding research experiment platform |
| CN110160788B (en) * | 2019-06-27 | 2021-07-02 | 中广核核电运营有限公司 | Rolling bearing slipping research experiment table |
| CN111487058A (en) * | 2020-04-27 | 2020-08-04 | 河南科技大学 | Rolling bearing slip test method |
| CN111487058B (en) * | 2020-04-27 | 2022-05-24 | 河南科技大学 | Rolling bearing slip test method |
| CN114738389A (en) * | 2022-03-29 | 2022-07-12 | 南京航空航天大学 | Intelligent bearing system for slip diagnosis and slip diagnosis prediction method |
| CN118130090A (en) * | 2024-04-30 | 2024-06-04 | 浙江大学 | Method and system for measuring and calculating slip ratio of cam roller bearing of inner curve hydraulic motor |
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| CN102353540B (en) | 2013-07-10 |
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