CN104359677A - Precision bearing life test equipment - Google Patents
Precision bearing life test equipment Download PDFInfo
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- CN104359677A CN104359677A CN201410715043.8A CN201410715043A CN104359677A CN 104359677 A CN104359677 A CN 104359677A CN 201410715043 A CN201410715043 A CN 201410715043A CN 104359677 A CN104359677 A CN 104359677A
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Abstract
The invention relates to precision bearing life test equipment comprising a base plate. The precision bearing life test equipment is characterized in that a loading plate is arranged at one end of the base plate, a U-shaped slot frame is fixedly arranged on the lower surface of the loading plate, a speed reduction motor is arranged at the other end of the base plate, and an eccentric wheel is arranged on a power output shaft of the speed reduction motor; the eccentric wheel is connected with the loading plate by virtue of a connecting rod, and two ends of the connecting rod are respectively connected with the eccentric wheel and the loading plate by virtue of a knuckle bearing; a plurality of plastic coated wheels are arranged at the lower end of the loading plate, the plastic coated wheels are positioned on two sides of the U-shaped slot frame, the inner cavity of each plastic coated wheel is a cavity for mounting a to-be-tested bearing, and an end cover is arranged on the outer side of each plastic coated wheel; and a shaft with screw threads at two ends is arranged in an inner hole of the to-be-tested bearing, two ends of the shaft are erected on two sides of the U-shaped slot frame, shaft sleeves are respectively arranged at two ends of the shaft, nuts are screwed at the screw threads of the two ends of the shaft, and the shaft sleeves at the two ends of the shaft are tightly clamped with the inner ring end surface of the to-be-tested bearing under screwing and pressing of the nuts. The precision bearing life test equipment disclosed by the invention can be used for testing and detecting whether the performance of the bearing reaches standards according to the specific requirements of customers.
Description
Technical field
The present invention relates to a kind of precision bearing life test equipment, especially a kind of equipment of simulating heavy-duty low-speed checking bearing life, belongs to bearing machining equipment Inspection verification technique field.
Background technology
Whether bearing performance (comprising life-span, the sound level of use procedure centre bearer, the losing quantity of grease and abrasion condition etc.) can meet the requirement (limit speed, ultimate load, ultimate life etc.) under the applying working condition limit; Quality testing in the design of bearing, process, factory testing cannot verify whether bearing can meet the limit requirements of client (especially automobile, aviation high-end field); Customer requirement bearing manufacturer provides their bearings bearing performance in the limiting case (variation etc. of life-span, noise, oil loss amount, play) data, at this moment the specific requirement provided according to client is then needed to carry out simulation test to bearing, in process of the test and after test, bearing is carried out to the analysis detection of continuous item, whether the data display bearing detected meets the limit of client or concrete requirement, satisfied then submit to test principle and analyze detect every data, can not meet, according to test failure item improve improve product after test again.Auto parts machinery client to the performance reliability of bearing with PPM(megabit) weigh, client is the testing requirements that requirement supplier first provides according to them, supplier oneself first tests and then submits data to, and auto parts machinery client is oneself verification experimental verification again, both Data Comparison Analysis.Whether product can meet client's (especially high-end customer such as automobile) and not enter high-end supporting industry to have more bearing manufacturer to confirm.
The domestic bearing industry overwhelming majority focuses on producing, inadequate to the checking attention degree of properties of product, simple and the equipment of verification method lacks, be difficult to improve by verification experimental verification the quality improving product, ensure lifting and the stability of the quality of bearing, cause ging wrong repeatedly to the product of client, high-end customer dare not use made in China bearing.Domestic high-end market is occupied by foreign products always.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of precision bearing life test equipment is provided, can be whether up to standard according to the performance of the specific requirement test test bearing of client, thus meet the quality requirements of client.
According to technical scheme provided by the invention, a kind of precision bearing life test equipment, comprise base plate, feature is: install loading plate in the upper surface of described base plate one end, the lower surface of loading plate fixes one or more U-type groove frame, reducing motor is installed in the lower surface of the base plate other end, and the power output shaft of reducing motor extends the upper surface of base plate, setting-up eccentricity wheel in the power output shaft of reducing motor; Described eccentric wheel connects loading plate by connecting rod, and the two ends of connecting rod are respectively by oscillating bearing connecting eccentric wheel and loading plate; Install multiple plasticly to take turns in the lower end of described loading plate, plasticly take turns the both sides being positioned at U-type groove frame, plastic inner chamber of taking turns is the cavity for installing bearing to be tested, plastic arranged outside end cap of taking turns; The axle of both end thread is set in the endoporus of bearing to be tested, the two ends of axle are erected at the both sides of U-type groove frame, arrange axle sleeve respectively at the two ends of axle, nut of screwing at screw thread place, axle two ends, the axle sleeve at axle two ends and the inner ring end face of bearing to be tested clamp in the stubborn pressure of nut.
Further, respectively guide wheel is installed in the both sides of the upper surface of described loading plate, at the both sides of base plate difference mounting guide rail plate, guide-rail plate clamping guide wheel.
Further, described guide-rail plate is line slideway plate or curve-shaped guide plate.
Further, the opening of described U-type groove frame downward.
Further, the endoporus of bearing to be tested and axle interference fit.
The present invention is compared with original technology, and advantage is: (1) product structure of the present invention is simple, economical; (2) product operation of the present invention is simple, automatically completes bearing performance durability test; (3) size that product of the present invention can change lower U-type groove frame a little just can be used for examination experiment different model, different rotating speeds requirement, the bearing that different loads requires; (4) product of the present invention noise when testing is very low, can long-time continuous safe handling in unserviced situation; (4) product of the present invention is very convenient in the installation of bearing, dismounting and change, process context of detection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the present invention after removing guide-rail plate.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Fig. 1 ~ Fig. 2: as described in precision bearing life test equipment comprise base plate 1, reducing motor 2, eccentric wheel 3, connecting rod 4, guide-rail plate 5, guide wheel 6, loading plate 7, U-type groove frame 8, plasticly take turns 9, axle 10, end cap 11, axle sleeve 12 etc.
As shown in Figure 1, the present invention includes base plate 1, loading plate 7 is installed in the upper surface of one end of base plate 1, the lower surface of loading plate 7 fixes one or more U-type groove frame 8, and the opening of U-type groove frame 8 downward; The lower surface of described base plate 1 other end installs reducing motor 2(watt level and ratio of gear is selected according to loading ability of bearing size to be tested and rotating speed), the power output shaft of reducing motor 2 extends the upper surface of base plate 1, in the power output shaft of reducing motor 2, the size of setting-up eccentricity wheel 3(offset is set by bearing operation stroke to be tested, and offset is at least greater than the girth of the plastic wheel of bearing top circle to be tested); Described eccentric wheel 3 connects loading plate 7 by connecting rod 4, and the two ends of connecting rod 4 are greater than eccentric diameter respectively by the handle path length of oscillating bearing connecting eccentric wheel 3 and loading plate 7(oscillating bearing, and when avoiding circumferential running, eccentric wheel and loading plate collide); Install in the lower end of described loading plate 7 and multiplely plasticly take turns 9, plasticly take turns the both sides that 9 are positioned at U-type groove frame 8, plastic inner chamber of taking turns 9 is the cavity for installing bearing to be tested, plastic take turns 9 arranged outside end cap 11, end cap 11 adopts screw to be fixed on and plasticly takes turns on 9, play the effect of fixing bearing outer ring end face to be tested; The axle 10 of both end thread is set in the endoporus of bearing to be tested, the endoporus of bearing to be tested and axle 10 interference fit, the two ends of axle 10 are erected at the both sides of U-type groove frame 8, at the two ends of axle 10, axle sleeve 12 is set respectively, to screw at screw thread place, axle 10 two ends nut, the axle sleeve 12 at axle 10 two ends and the inner ring end face of bearing to be tested clamp in the stubborn pressure of nut, and the inner ring non rotating of bearing to be tested, outer ring rotates.
Install guide wheel 6 respectively in the both sides of the upper surface of described loading plate 7, the respectively mounting guide rail plate 5 in the both sides of base plate 1, guide-rail plate 5 clamps guide wheel 6, ensures that loading plate 7 does linear reciprocating motion under the effect of guide wheel 6 and guide-rail plate 5; Described guide-rail plate 5 also can be shaped form, so just can two kinds of running orbits of simulated experiment two kinds of automobile sliding doors.
Describedly plasticly take turns 9 and refer to and adopt the round bearing chamber processed of high-abrasive material, the situation that the counterbore groove internal diameter of bearing chamber coordinates according to bearing actual installation to be tested designs (interference, transition or loose fit), and the degree of depth of counterbore groove sets according to the height of bearing to be tested.
Described axle 10 adopts 40Cr steel to do modifier treatment, strengthens intensity and toughness, and avoid the lower bending and fracture of heavy duty, the outside dimension of axle 10 is determined (interference, transition or loose fit) according to the internal diameter of bearing to be tested and customer requirement.
Described U-type groove frame 8 is convenient to be stuck on U-type groove frame 8 by plastic axle 10 of taking turns the bearing to be tested two end band taps of 9 parcels through after brearing bore, again at the two ends of axle 10 cover Upper shaft sleeve 12, two ends are screwed with nut, the inner ring end face of bearing pushed down by diaxon cover, prevents bearing sideslip and U-type groove frame 8 from rubbing.So also be convenient to installation and removal, facilitate bearing test to get off to detect the situation of bearing to bearing removal to official hour section, detect and whether lost efficacy.
Described eccentric wheel 3 circles under the drive of reducing motor 2, and traction and push-pull effort evenly, prevent from having an accident because too fast speed and weight inertia damage oscillating bearing (connecting rod).
In the both sides of described loading plate 7, guide wheel 6 is installed respectively, and at base plate 1 both sides mounting guide rail plate 5, ensureing that bearing to be tested makes linear reciprocation or curved reciprocating movement, prevent loading plate 7 to be displaced sideways, causing bearing to be tested because bearing the power damage in other direction; Also loading plate 7 smooth running safety is ensured.
Principle of work of the present invention: the present invention is a kind of bearing experimental facilities endurance life, during work, treating experiment, bearing pressure is plastic takes turns in the bearing chamber of 9, end cap 11 is screwed in plastic outside of taking turns 9 is used for compression axis bearing outer-ring end face with screw; By axle 10 through brearing bore, be inserted in axle sleeve 12 at the two ends of axle 10, axle 10 is erected on U-type groove frame 8, nut of screwing at the two ends of axle 10 clamping axle sleeve 12 and bearing inner race end face; Loading plate 7 adds loads (determining according to the specific requirement of client), reducing motor 2 rotarily drives eccentric wheel 3 and moves in a circle, eccentric wheel 3 pulls loading plate 7 by oscillating bearing (connecting rod 4), and under the effect of guide wheel 6 and guide-rail plate 5, loading plate 7 does reciprocating linear or curvilinear motion; Thus the experiment endurance life of complete matched bearings.
Bearing bench test equipment endurance life of the present invention, can simulate the limiting condition of bearing use according to the specific requirement of client (rotating speed of bearing, load, test setting-up time); Verify whether the performance of bearing meets the requirement of client completely by simulation actual condition, unappeasable item (noise, bearing capacity, life-span etc.) carries out improving, improving according to experimental result.
Claims (5)
1. a precision bearing life test equipment, comprise base plate (1), it is characterized in that: in the upper surface of described base plate (1) one end, loading plate (7) is installed, the lower surface of loading plate (7) fixes one or more U-type groove frame (8), reducing motor (2) is installed in the lower surface of base plate (1) other end, the power output shaft of reducing motor (2) extends the upper surface of base plate (1), setting-up eccentricity wheel (3) in the power output shaft of reducing motor (2); Described eccentric wheel (3) connects loading plate (7) by connecting rod (4), and the two ends of connecting rod (4) are respectively by oscillating bearing connecting eccentric wheel (3) and loading plate (7); Install multiple plasticly to take turns (9) in the lower end of described loading plate (7), plasticly take turns the both sides that (9) are positioned at U-type groove frame (8), plastic inner chamber of taking turns (9) is the cavity for installing bearing to be tested, plastic arranged outside end cap (11) of taking turns (9); The axle (10) of both end thread is set in the endoporus of bearing to be tested, the two ends of axle (10) are erected at the both sides of U-type groove frame (8), at the two ends of axle (10), axle sleeve (12) is set respectively, screw at screw thread place, axle (10) two ends nut, the axle sleeve (12) at axle (10) two ends and the inner ring end face of bearing to be tested are in the stubborn pressure clamping of nut.
2. precision bearing life test equipment as claimed in claim 1, it is characterized in that: in the both sides of the upper surface of described loading plate (7), guide wheel (6) is installed respectively, in the both sides of base plate (1) difference mounting guide rail plate (5), guide-rail plate (5) clamping guide wheel (6).
3. precision bearing life test equipment as claimed in claim 2, is characterized in that: described guide-rail plate (5) is line slideway plate or curve-shaped guide plate.
4. precision bearing life test equipment as claimed in claim 1, is characterized in that: the opening of described U-type groove frame (8) downward.
5. precision bearing life test equipment as claimed in claim 1, is characterized in that: the endoporus of bearing to be tested and axle (10) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715043.8A CN104359677B (en) | 2014-11-28 | 2014-11-28 | Precision bearing life test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715043.8A CN104359677B (en) | 2014-11-28 | 2014-11-28 | Precision bearing life test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104359677A true CN104359677A (en) | 2015-02-18 |
| CN104359677B CN104359677B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715043.8A Active CN104359677B (en) | 2014-11-28 | 2014-11-28 | Precision bearing life test equipment |
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| CN (1) | CN104359677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053076A (en) * | 2016-08-04 | 2016-10-26 | 无锡诚石轴承有限公司 | Testing machine of bearing linear stand |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750639A (en) * | 1980-09-12 | 1982-03-25 | Nippon Seiko Kk | Tester for life of rolling bearing |
| CN1587952A (en) * | 2004-07-07 | 2005-03-02 | 浙江大学 | Dynamic load performance test table for oil-impregnated bearing |
| DE102010045395A1 (en) * | 2010-09-15 | 2012-03-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device for region-wise checking of rolling and/or wear resistance of e.g. linear guide to determine service life of component, has contact body for rolling and sliding motion on surface area of component under application of force on area |
| CN102901628A (en) * | 2012-09-18 | 2013-01-30 | 上海摩士精密轴承制造有限公司 | High accuracy miniature bearing service life test device |
| CN103983440A (en) * | 2014-04-30 | 2014-08-13 | 珠海格力电器股份有限公司 | Caster wheel detection equipment and operation method thereof |
| CN204269370U (en) * | 2014-11-28 | 2015-04-15 | 无锡诚石轴承有限公司 | Precision bearing life test equipment |
-
2014
- 2014-11-28 CN CN201410715043.8A patent/CN104359677B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750639A (en) * | 1980-09-12 | 1982-03-25 | Nippon Seiko Kk | Tester for life of rolling bearing |
| CN1587952A (en) * | 2004-07-07 | 2005-03-02 | 浙江大学 | Dynamic load performance test table for oil-impregnated bearing |
| DE102010045395A1 (en) * | 2010-09-15 | 2012-03-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device for region-wise checking of rolling and/or wear resistance of e.g. linear guide to determine service life of component, has contact body for rolling and sliding motion on surface area of component under application of force on area |
| CN102901628A (en) * | 2012-09-18 | 2013-01-30 | 上海摩士精密轴承制造有限公司 | High accuracy miniature bearing service life test device |
| CN103983440A (en) * | 2014-04-30 | 2014-08-13 | 珠海格力电器股份有限公司 | Caster wheel detection equipment and operation method thereof |
| CN204269370U (en) * | 2014-11-28 | 2015-04-15 | 无锡诚石轴承有限公司 | Precision bearing life test equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053076A (en) * | 2016-08-04 | 2016-10-26 | 无锡诚石轴承有限公司 | Testing machine of bearing linear stand |
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| CN104359677B (en) | 2017-01-25 |
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