CN104359677B - Precision bearing life test equipment - Google Patents
Precision bearing life test equipment Download PDFInfo
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- CN104359677B CN104359677B CN201410715043.8A CN201410715043A CN104359677B CN 104359677 B CN104359677 B CN 104359677B CN 201410715043 A CN201410715043 A CN 201410715043A CN 104359677 B CN104359677 B CN 104359677B
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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 simulation heavy-duty low-speed checking bearing life
Equipment, belong to bearing machining equipment detection verification technique field.
Background technology
Bearing performance (includes life-span, the sound level using process middle (center) bearing, the losing quantity of grease and abrasion condition etc.)
The requirement (limit speed, ultimate load, ultimate life etc.) under the applying working condition limit whether can be met；The design of bearing, process
In quality testing, factory testing cannot verify whether bearing can meet the pole of client (especially automobile, aviation high-end field)
Limit requires；Customer requirement bearing manufacturer provides their bearing bearing performances in the limiting case, and (life-span, noise, grease damage
Consumption, variation of clearance etc.) data, at this moment then need to be simulated test according to the specific requirement that client provides to bearing,
Carry out the analysis detection of continuous item, whether the data display bearing of detection meets client in process of the test and after test to bearing
The limit or specific require, meet and then submit to test principle and analysis to detect each item data and then lost according to test it is impossible to meet
Effect item is tested after product to improve to improve again.Auto parts machinery client is to the performance reliability of bearing with ppm(megabit) come
Weigh, client is the test requirements document that requirement supplier is first given according to them, and supplier oneself first tests and then submits data to,
Auto parts machinery client oneself verification experimental verification again, both Data Comparison Analysis.There is more bearing manufacturer cannot confirm product
Client's (especially high-end customer such as automobile) whether can be met and do not enter high-end supporting industry.
The domestic bearing industry overwhelming majority is to focus on producing, inadequate to the checking attention degree of properties of product, checking
Method is simple and equipment lacks, and is very difficult to improve by verification experimental verification and improves the quality of product it is ensured that carrying of the quality of bearing
Rise and stability, lead to go 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.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of precision bearing life test equipment,
Can whether up to standard according to the performance of the specific requirement test test bearing of client, thus meeting the quality requirement of client.
The technical scheme providing according to the present invention, a kind of precision bearing life test equipment, including base plate, feature is:
Loading plate is installed in the upper surface of described base plate one end, and the lower surface of loading plate fixes one or more u-shaped truss, the base plate other end
Lower surface install reducing motor, the power output shaft of reducing motor extends the upper surface of base plate, defeated in the power of reducing motor
Setting-up eccentricity wheel on shaft；Described eccentric wheel connects loading plate by connecting rod, and the two ends of connecting rod are connected by oscillating bearing respectively
Eccentric wheel and loading plate；In the lower end of described loading plate, multiple plastic wheels are installed, plastic wheel is located at the both sides of u-shaped truss, plastic
The inner chamber of wheel is the cavity for installing bearing to be tested, the outside setting end cap of plastic wheel；Set in the endoporus of bearing to be tested
Put the axle of TBE (threaded both ends), the two ends of axle are erected at the both sides of u-shaped truss, are respectively provided with axle sleeve at the two ends of axle, at axle two ends
Screw at screw thread nut, the inner ring end face of the axle sleeve at axle two ends and bearing to be tested is in the stubborn pressure clamping of nut.
Further, it is respectively mounted guide wheel in the both sides of the upper surface of described loading plate, be respectively mounted in the both sides of base plate
Guide-rail plate, guide rail board clamping guide wheel.
Further, described guide-rail plate is line slideway plate or curve-shaped guide plate.
Further, the opening of described u-shaped truss is downward.
Further, the endoporus of bearing to be tested and axle interference fit.
Compared with original technology, advantage is the present invention: (1) product structure of the present invention is simple, economical；(2) present invention produces
Product are simple to operate, are automatically performed bearing performance life test；(3) product of the present invention just can somewhat change the size of lower u-shaped truss
Can be used to examination experiment different model, different rotating speeds require, the bearing that different loads require；(4) product of the present invention is carrying out reality
When testing, noise is very low, can continuous safe handling for a long time in the case of unattended；(4) product of the present invention is in the peace of bearing
Dress, dismounting and change, process context of detection are very convenient.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the present invention after removing guide-rail plate.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
As shown in Fig. 1～Fig. 2: described precision bearing life test equipment includes base plate 1, reducing motor 2, eccentric wheel 3, connects
Bar 4, guide-rail plate 5, guide wheel 6, loading plate 7, u-shaped truss 8, plastic wheel 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, loading plate 7 are installed on the upper surface of one end of base plate 1
Lower surface fix one or more u-shaped truss 8, the opening of u-shaped truss 8 is downward；The lower surface of described base plate 1 other end
Reducing motor 2(watt level is installed and gearratio to be selected according to loading ability of bearing size to be tested and rotating speed), reducing motor 2
Power output shaft extends the upper surface of base plate 1, the size of setting-up eccentricity wheel 3(offset on the power output shaft of reducing motor 2
To be set by bearing operation stroke to be tested, offset is at least greater than the girth of the plastic wheel of bearing top circle to be tested)；Institute
State eccentric wheel 3 and loading plate 7 is connected by connecting rod 4, the two ends of connecting rod 4 pass through oscillating bearing connecting eccentric wheel 3 and loading plate 7 respectively
(the handle path length of oscillating bearing is greater than the diameter of eccentric wheel, it is to avoid during circumferential running, eccentric wheel and loading plate collide)；?
Multiple plastic wheels 9 are installed in the lower end of described loading plate 7, and plastic wheel 9 is located at the both sides of u-shaped truss 8, and the inner chamber of plastic wheel 9 is use
In the cavity installing bearing to be tested, the outside setting end cap 11 of plastic wheel 9, end cap 11 is fixed on plastic wheel 9 using screw,
Play the effect of fixing bearing outer ring end face to be tested；The axle 10 of TBE (threaded both ends) is set in the endoporus of bearing to be tested, waits to try
Test endoporus and axle 10 interference fit of bearing, the two ends of axle 10 are erected at the both sides of u-shaped truss 8, set respectively at the two ends of axle 10
Put axle sleeve 12, nut of screwing at axle 10 two ends screw thread, the axle sleeve 12 at axle 10 two ends and the inner ring end face of bearing to be tested are in spiral shell
The stubborn pressure clamping of cap, the inner ring of bearing to be tested does not rotate, and outer ring rotates.
It is respectively mounted guide wheel 6 in the both sides of the upper surface of described loading plate 7, be respectively mounted guide-rail plate in the both sides of base plate 1
5, guide-rail plate 5 clamping guide wheel 6 is it is ensured that loading plate 7 does linear reciprocating motion in the presence of guide wheel 6 and guide-rail plate 5；Described guide rail
Plate 5 can also be shaped form, thus can be with two kinds of running orbits of two kinds of automobile sliding doors of simulated experiment.
Described plastic wheel 9 refers to the round bearing chambers to process using high-abrasive material, the counterbore groove internal diameter of bearing chamber according to
Designing (interference, transition or loose fit), the depth of counterbore groove is according to be tested for the situation of bearing actual installation to be tested cooperation
The height of bearing is setting.
Described axle 10 makees modifier treatment using 40cr steel, strengthens intensity and toughness, it is to avoid heavy duty is lower to be bent and rupture, axle 10
Outside dimension (interference, transition or loose fit) is determined according to the internal diameter of bearing to be tested and customer requirement.
The convenient axle 10 with tap for the bearing two ends to be tested by plastic wheel 9 parcel of described u-shaped truss 8 passes through bearing
It is stuck in after endoporus on u-shaped truss 8, then covers Upper shaft sleeve 12 at the two ends of axle 10, screw two ends with nut, bearing pushed down by two axle sleeves
Inner ring end face, prevents bearing sideslip and u-shaped truss 8 from rubbing.So also allow for mounting and dismounting, facilitate bearing test to arrive rule
The fixed time period gets off to detect the situation of bearing to bearing removal, detects whether to lose efficacy.
Described eccentric wheel 3 circles under the drive of reducing motor 2, and traction and push-pull effort uniformly, prevent because too fast
Speed and weight inertia damage oscillating bearing (connecting rod) have an accident.
It is respectively mounted guide wheel 6 in the both sides of described loading plate 7, and guide-rail plate 5 is installed it is ensured that waiting to try in base plate 1 both sides
Test bearing and make linear reciprocation or curved reciprocating movement, prevent loading plate 7 to be displaced sideways, lead to bearing to be tested because bearing it
The power in its direction is damaged；Also ensure loading plate 7 smooth running safety.
The operation principle of the present invention: the present invention is a kind of bearing endurance life experimental facilities, during work, bearing to be tested
The bearing of the plastic wheel 9 of pressure is indoor, with screw, end cap 11 is screwed in the outside of plastic wheel 9 for compressing bearing outer ring end face；Will
Axle 10 passes through brearing bore, is inserted in axle sleeve 12 at the two ends of axle 10, axle 10 is erected on u-shaped truss 8, twists at the two ends of axle 10
Upper cap nut clamping axle sleeve 12 and bearing inner race end face；Loading plate 7 loads weight (specific requirement according to client to be determined), subtracts
Speed motor 2 rotarily drives eccentric wheel 3 and moves in a circle, and eccentric wheel 3 pulls loading plate 7 by oscillating bearing (connecting rod 4), in guide wheel
6 and guide-rail plate 5 in the presence of, loading plate 7 makees reciprocating linear or curvilinear motion；Thus the endurance life experiment of complete matched bearings.
Bearing endurance life bench test equipment of the present invention, can according to client specific requirement (bearing turn
Speed, load, test setting time) come to simulate bearing use limiting condition；Verify the property of bearing by simulating actual condition
The requirement of client whether can be fully met it is impossible to the item (noise, bearing capacity, life-span etc.) meeting is changed according to experimental result
Enter, improve.
Claims (5)
1. a kind of precision bearing life test equipment, including base plate (1), 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-shaped truss (8), the lower surface of base plate (1) other end
Reducing motor (2) is installed, the power output shaft of reducing motor (2) extends the upper surface of base plate (1), dynamic in reducing motor (2)
Setting-up eccentricity wheel (3) on power output shaft；Described eccentric wheel (3) connects loading plate (7) by connecting rod (4), and the two ends of connecting rod (4) are divided
Tong Guo not oscillating bearing connecting eccentric wheel (3) and loading plate (7)；In the lower end of described loading plate (7), multiple plastic wheels are installed
(9), plastic wheel (9) is located at the both sides of u-shaped truss (8), and the inner chamber of plastic wheel (9) is the cavity for installing bearing to be tested,
Outside setting end cap (11) of plastic wheel (9)；The axle (10) of TBE (threaded both ends) is set in the endoporus of bearing to be tested, axle (10)
Two ends are erected at the both sides of u-shaped truss (8), are respectively provided with axle sleeve (12) at the two ends of axle (10), at the screw thread of axle (10) two ends
Screw on 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, is characterized in that: in the upper surface of described loading plate (7)
Both sides be respectively mounted guide wheel (6), be respectively mounted guide-rail plate (5) in the both sides of base plate (1), 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 direction of described u-shaped truss (8)
Lower section.
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 CN104359677A (en) | 2015-02-18 |
| CN104359677B true CN104359677B (en) | 2017-01-25 |
Family
ID=52526960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715043.8A Active CN104359677B (en) | 2014-11-28 | 2014-11-28 | Precision bearing life test equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN104359677B (en) |
Families Citing this family (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 |
Family Cites Families (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 |
| CN1294411C (en) * | 2004-07-07 | 2007-01-10 | 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 |
| CN102901628B (en) * | 2012-09-18 | 2015-05-06 | 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 |
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2014
- 2014-11-28 CN CN201410715043.8A patent/CN104359677B/en active Active
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| CN104359677A (en) | 2015-02-18 |
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