CN1421681A - Load uniforming detection device and method for serial combined thrust bearing - Google Patents
Load uniforming detection device and method for serial combined thrust bearing Download PDFInfo
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- CN1421681A CN1421681A CN 02157787 CN02157787A CN1421681A CN 1421681 A CN1421681 A CN 1421681A CN 02157787 CN02157787 CN 02157787 CN 02157787 A CN02157787 A CN 02157787A CN 1421681 A CN1421681 A CN 1421681A
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Abstract
The present invention belongs to bearing detection and test in mechanical engineering and is the load uniforming detection device and method for serial combined thrust bearing. There are vertical frame, oil cylinder in the lowr part, driving box in the upper part with thrust bearing on its output shaft, bearing fixing seat screwed to the output end of oil cylinder piston rod; serial combined cylindrical roller thrust bearing to be set in the bearing fixing seat and with spindle connected to the output shaft; speed varying gear mechanism inside the driving box; and electrical resistance strain gages to be adhered to the outer surface of the bearing to be measured. The present invention has the features of reasonable structure and reliable measured data and is suitable for dynamic detection of uniform load performance and fatigue life of various serial combined cylindrical roller thrust bearings.
Description
Technical field
What the present invention relates to is a kind of pick-up unit and detection method thereof of bearing performance, particularly a kind of tandem compound type thrust bearing all carry pick-up unit and detection method thereof, belong to the mechanical engineering centre bearer and detect the test field.
Background technology
Tandem compound type cylindrical roller thrust bearing is that a kind of radial dimension is little, the thrust bearing group that weight bearing power is very big, by several same non-standard cylindrical roller thrust bearing and cylindrical cone spacer therebetween, the outer ring spacer series connection constitutes, cone spacer is between the adjacent blowout patche of thrust bearing group, outer ring spacer is between the adjacent seat ring of thrust bearing group, each cylindrical roller thrust bearing should be able to be shared more equably and bear line shaft to load, this is the big key of thrust bearing group weight bearing power, the life-span of reducing whole tandem compound type cylindrical roller thrust bearing in order to avoid wherein indivedual excessive life-span of bearing load is short; It is unequal that the method that realizes at present this requirement is that the wall thickness with each inside and outside spacer ring designs and produces, thereby transmit and the shunting axial force by it.The key character parameter of tandem compound type cylindrical roller thrust bearing Performance Detection is exactly by wherein whether the actual load of bearings at different levels is even in test under the real work load effect and under the rotation status, and test observation its fatigue lifetime.Other various types of bearings are because the structural relation of self at present, all there is not evenly this test request of load, only the testing load effect down and the vibrating noise under the rotation status and carry out fatigue life test, whether also can't test a plurality of identical bearing loads on the thrust bearing testing equipment of relevant detection device or special use even; And since the axial working load of tandem compound type cylindrical roller thrust bearing generally up to tens of thousand Ns even higher, existing bearing pick-up unit or checkout equipment all can't provide the corresponding techniques condition.Find by literature search, China Patent No. is: 88217252.2, name is called: the utility model patent of cylindrical roller (pin) Bearing vibration measurer, its readme is " a kind of garden post roller bearing vialog; by body; drive shaft; charger; electronic box; sensor, rackwork constitutes, drive shaft adopts sliding bearing that main shaft is placed body, sensor is positioned at directly over the drive shaft front end, be attached on the rackwork, it is characterized in that main shaft adopts the hydrostatic bearing structure to place body, but charger there is the framework of upper and lower displacement, framework has the flexible block that is positioned at drive shaft front end top, and framework is connected with radial loaded mechanism." this utility model is exclusively used in the cylinder roller bearing vibration detection.Be not found use under the real work load effect up to now and following whether uniformly device and the method for testing thereof of the load of bearings at different levels in the test tandem compound type cylindrical roller thrust bearing of rotation status, so such The Application of Technology scope is very limited.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, what a kind of tandem compound type thrust bearing was provided all carries pick-up unit and detection method thereof, eliminate one type of prior art syringe and can only test rotating speed, vibrating noise and the deficiency of carrying out fatigue life test, enable to apply tens of thousand Ns even higher axial load, and can under the rotary work state, test the actual load of bearings at different levels in the tandem compound type cylindrical roller thrust bearing, thereby change the technical limitation of existing all kinds bearing detection method and test unit, satisfy the needed property of tandem compound type cylindrical roller thrust bearing structure and detect testing requirements.
The present invention is achieved by the following technical solutions, pick-up unit of the present invention mainly comprises: Vertical Rack, oil cylinder, thrust bearing, change gear mechanism, motor, headstock, transverse bearing, axle, bearing fixed seat, tandem compound type cylindrical roller thrust bearing, resistance strain gage; Oil cylinder is arranged the below that is installed in Vertical Rack, and headstock is installed in the top of Vertical Rack, on the driving output shaft in the headstock big thrust bearing is housed, and bearing fixed seat is by the output terminal of screw retention at the oil cylinder piston bar; Tandem compound type cylindrical roller thrust bearing is positioned at bearing fixed seat, transverse bearing and the two ends that are positioned at bearing fixed seat, axle is positioned at the center pit of transverse bearing and tandem compound type cylindrical roller thrust bearing, paste the bearing fixed seat of packing into behind the resistance strain gage when detecting test on the middle part outside surface of each outer ring spacer of tandem compound type cylindrical roller thrust bearing, and coming radial location by transverse bearing, the axle of itself and Qi Nei, the axle head splined is exported in the driving of headstock on the same axis in the other end of axle and top; Vertically arranged oil cylinder is used to apply axial load, and headstock is provided by motor-driven and rotatablely moves, and the engagement by diverse location constitutes change gear mechanism with cylindrical gear slip by fixing on the several parallel shafts in headstock; Behind oil cylinder jacking pressurization and starting headstock, tested tandem compound type cylindrical roller thrust bearing promptly is in the rotary work state of high load capacity.
Use the detection method of pick-up unit of the present invention to be: even carrying detection method of the present invention adopts resistance strain gage to paste vertically on the middle part outside surface that is arranged in tested each outer ring spacer of tandem compound type cylindrical roller thrust bearing, outer ring spacer can not rotate during work, the lead of resistance strain gage is drawn to elongated slot from the external shaft of bearing fixed seat, be connected to the electric bridge on the electric wire strain gauge, the strain value of each outer ring spacer that test is corresponding, the stress that calculates each outer ring spacer then also then calculates the axial force of its transmission, successively the power value of adjacent two outer ring spacers is subtracted each other, promptly obtain the actual loading of bearings at different levels in the tested tandem compound type cylindrical roller thrust bearing, thereby declare whether it even, this detection method that is the indirect test method that all carries.
The present invention has substantive distinguishing features and marked improvement, because adopted the actual load of resistor straining testing method detection tandem compound type cylindrical roller thrust bearing bearings at different levels whether even, so having solved this type bearing important performance characteristic originally can't be by the problem of other method detection, and on outer ring spacer, paste and arrange resistance strain gage, its method is simple, low price, test value is accurate; Owing to adopted the charger of oil cylinder axial thrust when detecting test on the structure, so test unit can be simulated actual working state and provided up to tens of thousand Ns even higher axial working load; The axis that test unit takes the bearing fixed seat, headstock of load cylinder, tandem compound type cylindrical roller thrust bearing to drive the output shaft three among the present invention is the arrangement of same axis, make tested tandem compound type cylindrical roller thrust bearing situation when motion and the realistic work of force-bearing situation in detecting process of the test, and the headstock output speed can be according to detecting the variation of test needs; Headstock drives output shaft and is provided with big thrust bearing, under very big axial load effect, enough intensity and fatigue lifetime are arranged self during the work of warranty test device, the structure of apparatus of the present invention has connection and reasonable arrangement, installs and adjust convenient fixing, test data reliable characteristics, is applicable to the even load-carrying properties and the test of the detection of dynamic of fatigue lifetime of the tandem compound type cylindrical roller thrust bearing of various models.
Description of drawings
Fig. 1 pick-up unit structural representation of the present invention;
Embodiment
As shown in Figure 1, pick-up unit of the present invention mainly comprises: Vertical Rack 1, oil cylinder 2, thrust bearing 3, change gear mechanism 4, motor 5, headstock 6, transverse bearing 7 and 8, axle 9, bearing fixed seat 10, tandem compound type cylindrical roller thrust bearing 11, resistance strain gage 12; Oil cylinder 2 is arranged the below that is installed in Vertical Rack 1, and headstock 6 is installed in the top of Vertical Rack 1, on the driving output shaft in the headstock 6 big thrust bearing 3 is housed, and bearing fixed seat 10 is by the output terminal of screw retention at oil cylinder 2 piston rods; Tandem compound type cylindrical roller thrust bearing 11 is positioned at bearing fixed seat 10, transverse bearing 7 and 8 is positioned at the two ends of bearing fixed seat 10, axle 9 is positioned at the center pit of transverse bearing 7,8 and tandem compound type cylindrical roller thrust bearing 11, paste the bearing fixed seat 10 of packing into behind the resistance strain gage 12 when detecting test on the middle part outside surface of tandem compound type cylindrical roller thrust bearing 11 each outer ring spacer, and coming radial location by transverse bearing 7 and 8, the axle 9 of itself and Qi Nei, the axle head splined is exported in the driving of headstock 6 on the same axis in the other end of axle 9 and top; Vertically arranged oil cylinder 2 is used to apply axial load, and headstock 6 is driven to provide by motor 5 and rotatablely moves, and the engagement by diverse location constitutes change gear mechanism 4 with cylindrical gear slip by that fix on the several parallel shafts headstock 6 in; Behind oil cylinder 2 jackings pressurization and starting headstock 6, tested tandem compound type cylindrical roller thrust bearing 11 promptly is in the rotary work state of high load capacity.
The bearing fixed seat 10 of the driving output shaft of headstock 6, tandem compound type cylindrical roller thrust bearing and oil cylinder 2 threes' axis is on the same axis, this axis and frame 1 vertical vertical layout or the horizontal layout of level.
Bearing fixed seat 10 is the socket type structure, and there are several axial elongated slots the outside.
The big thrust bearing 3 that is equipped with on the driving output shaft in the headstock 6 is spherical roller thrust bearing or roller thrust bearing or taper roller thrust bearing.
Evenly the carrying detection method adopts resistance strain gage 12 to paste vertically on the middle part outside surface that is arranged in tested tandem compound type cylindrical roller thrust bearing 11 each outer ring spacer, the lead of resistance strain gage 12 is drawn to elongated slot from the external shaft of bearing fixed seat 10, be connected to the electric bridge on the electric wire strain gauge, the strain value of each outer ring spacer that test is corresponding, the stress that calculates each outer ring spacer then also then calculates the axial force of its transmission, successively the power value of adjacent two outer ring spacers is subtracted each other, promptly obtain the actual loading of bearings at different levels in the tested tandem compound type cylindrical roller thrust bearing 11, thereby declare whether it even.
Claims (5)
1. a tandem compound type thrust bearing all carries pick-up unit, mainly comprise: Vertical Rack (1), motor (5), headstock (6), bearing fixed seat (10), it is characterized in that also comprising: oil cylinder (2), thrust bearing (3), change gear mechanism (4), transverse bearing (7,8), axle (9), tandem compound type cylindrical roller thrust bearing (11), resistance strain gage (12), oil cylinder (2) is arranged the below that is installed in Vertical Rack (1), headstock (6) is installed in the top of Vertical Rack (1), on the driving output shaft in the headstock (6) thrust bearing (3) is set, bearing fixed seat (10) is by the output terminal of screw retention at oil cylinder (2) piston rod; Tandem compound type cylindrical roller thrust bearing (11) is positioned at bearing fixed seat (10), transverse bearing (7) and (8) are positioned at the two ends of bearing fixed seat (10), axle (9) is positioned at the center pit of transverse bearing (7), (8) and tandem compound type cylindrical roller thrust bearing (11), and the driving output shaft of headstock (6) links on the same axis of the other end of axle (9) and top; Engagement by diverse location constitutes change gear mechanism (4) with cylindrical gear slip by fixing on the several parallel shafts in headstock (6), at the middle part outside surface of each outer ring spacer of tested tandem compound type cylindrical roller thrust bearing (11) resistance strain gage (12) is set.
2. this tandem compound type thrust bearing according to claim 1 all carry pick-up unit, it is characterized in that, the driving output shaft of headstock (6), bearing fixed seat (10) and oil cylinder (2) three's axis is on the same axis, vertical vertical layout of this axis and frame (1) or the horizontal layout of level.
3. this tandem compound type thrust bearing according to claim 1 all carry pick-up unit, it is characterized in that the big thrust bearing (3) that is equipped with on the driving output shaft in the headstock (6) is spherical roller thrust bearing or roller thrust bearing or taper roller thrust bearing.
4. this tandem compound type thrust bearing according to claim 1 all carry pick-up unit, it is characterized in that bearing fixed seat (10) is the socket type structure, there are several axial elongated slots the outside.
5. the detection method of all carrying pick-up unit of the described tandem compound type of claim 1 thrust bearing, it is characterized in that, adopt resistance strain gage (12) to paste on the middle part outside surface that is arranged in each outer ring spacer of tested tandem compound type cylindrical roller thrust bearing (11) vertically, the lead of resistance strain gage (12) is drawn to elongated slot from the external shaft of bearing fixed seat (10), be connected to the electric bridge on the electric wire strain gauge, the strain value of each outer ring spacer that test is corresponding, the stress that calculates each outer ring spacer then also then calculates the axial force of its transmission, successively the power value of adjacent two outer ring spacers is subtracted each other, obtain the actual loading of bearings at different levels in the tested tandem compound type cylindrical roller thrust bearing (11), thereby declare whether it even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021577870A CN1195209C (en) | 2002-12-26 | 2002-12-26 | Load uniforming detection device and method for serial combined thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021577870A CN1195209C (en) | 2002-12-26 | 2002-12-26 | Load uniforming detection device and method for serial combined thrust bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421681A true CN1421681A (en) | 2003-06-04 |
| CN1195209C CN1195209C (en) | 2005-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021577870A Expired - Fee Related CN1195209C (en) | 2002-12-26 | 2002-12-26 | Load uniforming detection device and method for serial combined thrust bearing |
Country Status (1)
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| CN (1) | CN1195209C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625283B (en) * | 2009-08-13 | 2011-02-16 | 哈尔滨电机厂有限责任公司 | Double direction thrust bearing tester |
| CN103776573A (en) * | 2014-01-24 | 2014-05-07 | 华中科技大学 | Measuring device and method for thrust loading of sliding thrust bearing, and application of measuring device and method |
| CN104792531A (en) * | 2015-04-16 | 2015-07-22 | 西南石油大学 | Multistage thrust ball bearing-pack uniform loading performance test rack |
| CN105716868A (en) * | 2016-04-29 | 2016-06-29 | 新昌县盛金祺机械有限公司 | Novel bearing detection device |
| CN110608883A (en) * | 2019-10-25 | 2019-12-24 | 西南交通大学 | Multi-type bearing damage simulation test system |
| CN111024396A (en) * | 2019-12-31 | 2020-04-17 | 哈尔滨工业大学 | Spiral groove gas dynamic pressure thrust bearing performance simulation test device and test method |
| CN114018204A (en) * | 2021-10-09 | 2022-02-08 | 北京交通大学 | Method for testing skew angle of rolling bearing roller |
-
2002
- 2002-12-26 CN CNB021577870A patent/CN1195209C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101625283B (en) * | 2009-08-13 | 2011-02-16 | 哈尔滨电机厂有限责任公司 | Double direction thrust bearing tester |
| CN103776573A (en) * | 2014-01-24 | 2014-05-07 | 华中科技大学 | Measuring device and method for thrust loading of sliding thrust bearing, and application of measuring device and method |
| CN103776573B (en) * | 2014-01-24 | 2016-04-13 | 华中科技大学 | The measurement mechanism of slide thrust bearing thrust loading, method and application thereof |
| CN104792531A (en) * | 2015-04-16 | 2015-07-22 | 西南石油大学 | Multistage thrust ball bearing-pack uniform loading performance test rack |
| CN105716868A (en) * | 2016-04-29 | 2016-06-29 | 新昌县盛金祺机械有限公司 | Novel bearing detection device |
| CN110608883A (en) * | 2019-10-25 | 2019-12-24 | 西南交通大学 | Multi-type bearing damage simulation test system |
| CN110608883B (en) * | 2019-10-25 | 2024-05-28 | 西南交通大学 | Multi-type bearing damage simulation test system |
| CN111024396A (en) * | 2019-12-31 | 2020-04-17 | 哈尔滨工业大学 | Spiral groove gas dynamic pressure thrust bearing performance simulation test device and test method |
| CN111024396B (en) * | 2019-12-31 | 2021-07-09 | 哈尔滨工业大学 | Spiral groove gas dynamic pressure thrust bearing performance simulation test device and test method |
| CN114018204A (en) * | 2021-10-09 | 2022-02-08 | 北京交通大学 | Method for testing skew angle of rolling bearing roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1195209C (en) | 2005-03-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |