CN202493577U - Straight-lubricating angular contact ball bearing and supporting system - Google Patents
Straight-lubricating angular contact ball bearing and supporting system Download PDFInfo
- Publication number
- CN202493577U CN202493577U CN201120574024XU CN201120574024U CN202493577U CN 202493577 U CN202493577 U CN 202493577U CN 201120574024X U CN201120574024X U CN 201120574024XU CN 201120574024 U CN201120574024 U CN 201120574024U CN 202493577 U CN202493577 U CN 202493577U
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- Prior art keywords
- bearing
- rib
- outer ring
- angular contact
- bearing outer
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000000314 lubricant Substances 0.000 claims description 33
- 125000006850 spacer group Chemical group 0.000 claims description 20
- 230000008676 import Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 43
- 238000000034 method Methods 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
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Abstract
The utility model provides a straight-lubricating angular contact ball bearing. A bearing outer race and a bearing inner race of the straight-lubricating angular contact ball bearing are provided with corresponding channels; both flanges of the bearing outer race channel in the axial direction of the bearing are asymmetrical flanges, one of the two flanges is high, and the other one is high; both flanges of the bearing inner race channel in the axial direction of the bearing are asymmetrical flanges, one flange is high, and the other one is low, and the high-low arrangement of the two flanges of the bearing inner race is opposite to that of the two flanges of the bearing outer race; and a lubricating oil injection hole obliquely facing toward a bearing steel ball is arranged on the bearing outer race outside the low flange side of the bearing outer race channel, and grooves for installing seal rings are respectively arranged on the outside-diameter surface of the bearing outer race outside both sides of an inlet of the lubricating oil injection hole. The utility model also provides a supporting system using the ball bearing. The ball bearing has the advantages of compact structure and low noise, and 2/3 compressed air amount and 1/2 lubricating oil amount can be reduced.
Description
Technical field
The utility model relates to straight lubricated angular contact ball bearing and supporting system.
Background technique
Some mechanically operated main shaft supporting system is except possessing high rotating speed, the high rigidity, also requiring under various complicated processing conditions, can both stably work, and physical dimension is wanted relative compact, and is lubricated fully reliable.One of lubricating method of main shaft bearing is exactly spray lubrication, and it is by pressurized air the lubricant oil of trace to be squeezed into the spacer ring adjacent with bearing, sprays to bearing inside through the oil supply hole that is located on the spacer ring.
The shared axial space of traditional main shaft bearing and supporting system thereof is big, and delay lubricant oil is many, mist of oil is prone to distribute, noise is big.So, if used bearing structure and main shaft supporting system thereof are improved, make it both to keep the high characteristics of rotating speed of original bearing, can adapt to the requirement of modern mechanical energy-saving and environmental protection and compact structure again, vast market prospect will be arranged.
The structure at traditional mechanical transmission main shaft bearing supporting position is as shown in Figure 1, through being located at oil supply hole 5a on the spacer ring 7a to the inner oil jet lubrication of bearing.For this lubricating system following drawback is arranged:
1, the restriction of compact structureization
Owing to oil supply hole is set on bearing spacer,, has so just limited the compactness requirement of axis system axial arrangement and size so the width dimensions of spacer ring must strengthen.
2, the delay of lubricant oil
1. because of its main shaft in some machinery not only receives radial load but also receive thrust load, also have the alternate load in other orientation, working condition is complicated, causes the variation of main shaft attitude action; 2. be accompanied by running up of main shaft, produce " air curtain " at bearing revolution position; 1. 2. two lubricant oil is detained in the oil supply gallery of spacer ring, tend to cause the instability of supplying lubricating oil in bearing like this.
3. noise
In bearing, during supplying lubricating oil,, producing bigger noise sometimes through spacer ring because path length, the bend of lubricant oil operation are many.
Summary of the invention
The utility model technical problem at first to be solved provides a kind of straight lubricated angular contact ball bearing, and it can avoid the shortcoming described in the background technique disposing when to supporting system, working.For this reason, the utility model adopts following technological scheme: it comprises bearing outer ring, retainer, bearing inner race, bearing steel ball; It is characterized in that said bearing outer ring and said bearing inner race are provided with corresponding raceway groove; The bearing outer ring raceway groove is asymmetric rib at the both sides rib that bearing shaft makes progress, and the high opposite side rib of a wherein side rib in the rib of both sides is low; The bearing inner race raceway groove is asymmetric rib at the both sides rib that bearing shaft makes progress, and the low opposite side rib of a side rib is high, and it just disposes opposite with the height configuration of the rib of bearing outer ring;
Said bearing outer ring is provided with the lubricant oil oil hole that is being tilted to bearing steel ball outside this side of low rib of bearing outer ring raceway groove, the external diameter surface of said bearing outer ring is respectively equipped with the groove that seal ring is installed outside the both sides of lubricant oil oil hole import.
Further, the wrapping angle of said bearing is 15 ° or 25 °.Said wrapping angle is the angle between the force action line (nominal line of action) that passes to steel ball perpendicular to the plane (radial plane) of bearing axis and through bearing ring.Just during such bearing working, the line of steel ball and inside and outside circle channel junction contact and the formed angle in radial plane through the steel ball center.
Further, be gradually away from the conical surface in the center of circle at the outer bearing outer ring internal surface of low this side of rib of bearing outer ring steel ball raceway groove, the bearing inner race outer surface outside bearing inner race steel ball raceway groove hangs down this side of rib is gradually near the conical surface in the center of circle.
Another technical problem to be solved of the utility model provides a kind of supporting system, and it can utilize above-mentioned straight lubricated angular contact ball bearing.For this reason; The utility model adopts following technological scheme: it comprises bearing supporting mass and bearing; Said bearing is above-mentioned straight lubricated angular contact ball bearing, in the bearing supporting mass, is provided with a pair of symmetrically arranged said straight lubricated angular contact ball bearing, between two straight lubricated angular contact ball bearings, is provided with spacer ring; Said spacer ring is not provided with the lubricant oil oil hole; Said bearing supporting mass is provided with the lubricant oil feeding pipe road, and the lubricant oil oil hole of said lubricant oil feeding pipe road and bearing outer ring joins, and the groove that seal ring is installed on the said bearing outer ring is provided with the seal ring in gap between surface, stuffing box bearing outer ring and the bearing supporting mass.
Further, this side that the bearing outer ring raceway groove rib of said straight lubricated angular contact ball bearing is high is near said spacer ring.
Owing to adopt the technological scheme of the utility model; The supporting system of using the straight lubricated angular contact ball bearing that the utility model provided need not be provided with the lubricant oil oil hole in spacer ring; So dwindled the axial dimension of spacer ring, thereby made by the main shaft portion axial dimension of its supporting compact more.In addition, because of the utility model for directly to bearing internal feed lubricant oil, controlled the change of lubricant oil supply condition, suppressed generation of noise.Further, be provided with seal ring, can prevent effectively that lubricant oil is from the bearing outside diameter surface leakage in the both sides of lubricant oil oil hole import.Because of need not disposing oil feed line in the spacer ring, thus the path loss of lubricant oil also reduce, thereby the required all corresponding minimizing of lubricants capacity when making main shaft work with air supply.
To sum up, the utility model provided straight lubricated angular contact ball bearing and supporting system have following characteristics:
1, compact structureization, bearing spacer reduced width, the length of front-end of spindle are dwindled 20% (being configured to example with diameter of axle φ 80,4 row combination bearings);
2, reduce the noise maximum and can reduce by 6 decibels of noises (comparing) with the standard of employing spray lubrication bearing;
3, can reduce 2/3 air supply and 1/2 lubricants capacity (comparing) with the standard of employing spray lubrication bearing.
Description of drawings
Fig. 1 is the sectional view of main shaft bearing described in the background technique and supporting system.
Fig. 2 is the straight lubricated angular contact ball bearing embodiment's that the utility model provided sectional view.
Fig. 3 is the sectional view of middle (center) bearing embodiment illustrated in fig. 2 outer ring.
Fig. 4 is the enlarged view at Fig. 3 A position.
Fig. 5 is the sectional view of the supporting system that the utility model provided.
Embodiment
With reference to Fig. 2,3,4,5.The straight lubricated angular contact ball bearing that the utility model provided comprises bearing outer ring 1, retainer 2, bearing inner race 3, bearing steel ball 4; Said bearing outer ring and said bearing inner race are provided with corresponding raceway groove 10,30; Bearing outer ring raceway groove 10 is asymmetric rib at the both sides rib that bearing shaft makes progress, and the high opposite side rib of the wherein side rib 11 in the rib of both sides 12 is low; Bearing inner race raceway groove 30 is asymmetric rib at the both sides rib that bearing shaft makes progress, and low opposite side rib 32 height of a side rib 31 are as shown in Figure 2, and it just disposes opposite with the height configuration of the rib of bearing outer ring, also is; This side that bearing outer ring steel ball raceway groove 10 ribs are high, bearing inner race steel ball raceway groove 30 ribs are low, this side that bearing outer ring steel ball raceway groove 10 ribs are low, bearing inner race steel ball raceway groove 30 ribs are high.
The internal diameter of bearing inner race, the external diameter of bearing outer ring and width are by the standard series design.
Said bearing outer ring 1 is provided with the lubricant oil oil hole 5 that is being tilted to bearing steel ball 4 outside this side of low rib of bearing outer ring raceway groove 10; In the present embodiment about lubricant oil oil hole 5 relative bearing top circle bus inclination 15o; The distance C of its outlet distance between bearing steel ball fore shaft is about 1mm; The external diameter surface of said bearing outer ring is respectively equipped with the groove 6 that seal ring is installed outside the both sides of lubricant oil oil hole import, as shown in Figure 4.
The wrapping angle B of said bearing is 15 ° or 25 °.
At the outer bearing outer ring internal surface of low rib 12 these sides of bearing outer ring raceway groove is gradually away from the conical surface 13 in the center of circle, and the bearing inner race outer surface 33 outside bearing inner race steel ball raceway groove hangs down rib 31 these sides is gradually near the conical surface in the center of circle.
As shown in Figure 5; The supporting system that the utility model provided comprises bearing supporting mass 100 and bearing; Bearing supporting mass 100 can be the bearing housing shell; Said bearing is aforesaid straight lubricated angular contact ball bearing, in the bearing supporting mass, is provided with a pair of symmetrically arranged said straight lubricated angular contact ball bearing, between two straight lubricated angular contact ball bearings, is provided with spacer ring 7; Said spacer ring 7 is not provided with the lubricant oil oil hole; Said bearing supporting mass is provided with lubricant oil feeding pipe road 101, and said lubricant oil feeding pipe road 101 joins with the lubricant oil oil hole 5 of bearing outer ring, and the groove 6 that seal ring is installed on the said bearing outer ring is provided with the seal ring 8 in gap between surface, stuffing box bearing outer ring and the bearing supporting mass.
As shown in Figure 5, high this side of the bearing outer ring raceway groove rib of said straight lubricated angular contact ball bearing is near said spacer ring 7.
The method that during installation bearing is contained on the axle 200 is identical with traditional method, just loads onto seal ring at supporting mass that bearing is packed into (casing 100) Kong Qianxian for 6 li at groove, bearing is packed into (as shown in Figure 5) again.With pressurized air the lubricant oil of trace is squeezed at last, bearing gets final product proper functioning.
Claims (5)
1. directly lubricated angular contact ball bearing comprises bearing outer ring, retainer, bearing inner race, bearing steel ball; It is characterized in that said bearing outer ring and said bearing inner race are provided with corresponding raceway groove; The bearing outer ring raceway groove is asymmetric rib at the both sides rib that bearing shaft makes progress, and the high opposite side rib of a wherein side rib in the rib of both sides is low; The bearing inner race raceway groove is asymmetric rib at the both sides rib that bearing shaft makes progress, and the low opposite side rib of a side rib is high, and it just disposes opposite with the height configuration of the rib of bearing outer ring;
Said bearing outer ring is provided with the lubricant oil oil hole that is being tilted to bearing steel ball outside this side of low rib of bearing outer ring raceway groove, the external diameter surface of said bearing outer ring is respectively equipped with the groove that seal ring is installed outside the both sides of lubricant oil oil hole import.
2. straight lubricated angular contact ball bearing as claimed in claim 1, the wrapping angle that it is characterized in that said bearing is 15 ° or 25 °.
3. according to claim 1 or claim 2 straight lubricated angular contact ball bearing; It is characterized in that the outer bearing outer ring internal surface of low this side of rib of bearing outer ring raceway groove for gradually away from the conical surface in the center of circle, the bearing inner race outer surface outside the bearing inner race raceway groove hangs down this side of rib is gradually near the conical surface in the center of circle.
4. supporting system; Comprise bearing supporting mass and bearing; It is characterized in that said bearing is claim 1 or 2 described straight lubricated angular contact ball bearings, in the bearing supporting mass, be provided with a pair of symmetrically arranged said straight lubricated angular contact ball bearing, between two straight lubricated angular contact ball bearings, be provided with spacer ring; Said spacer ring is not provided with the lubricant oil oil hole; Said bearing supporting mass is provided with the lubricant oil feeding pipe road, and the lubricant oil oil hole of said lubricant oil feeding pipe road and bearing outer ring joins, and is provided with the seal ring in gap between surface, stuffing box bearing outer ring and the bearing supporting mass on the said bearing outer ring in the groove of installation seal ring.
5. a kind of supporting system as claimed in claim 4 is characterized in that this high side of the bearing outer ring raceway groove rib of said straight lubricated angular contact ball bearing is near said spacer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120574024XU CN202493577U (en) | 2011-12-31 | 2011-12-31 | Straight-lubricating angular contact ball bearing and supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120574024XU CN202493577U (en) | 2011-12-31 | 2011-12-31 | Straight-lubricating angular contact ball bearing and supporting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493577U true CN202493577U (en) | 2012-10-17 |
Family
ID=46999809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120574024XU Expired - Fee Related CN202493577U (en) | 2011-12-31 | 2011-12-31 | Straight-lubricating angular contact ball bearing and supporting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493577U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806641A (en) * | 2015-04-30 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Lubrication structure of tapered roller bearing |
| CN104806640A (en) * | 2015-04-30 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Outer ring of tapered roller bearing |
| CN106763166A (en) * | 2016-12-27 | 2017-05-31 | 太原科技大学 | A kind of four row cylinders and taper roller combination bearing |
| CN109563877A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
| CN109563878A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
| CN116592062A (en) * | 2023-06-21 | 2023-08-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Paired angular contact ball bearings |
-
2011
- 2011-12-31 CN CN201120574024XU patent/CN202493577U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806641A (en) * | 2015-04-30 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Lubrication structure of tapered roller bearing |
| CN104806640A (en) * | 2015-04-30 | 2015-07-29 | 德清德曼汽车零部件有限公司 | Outer ring of tapered roller bearing |
| CN104806641B (en) * | 2015-04-30 | 2017-03-29 | 盐城市三川轴承制造有限公司 | Tapered roller bearing lubricating structure |
| CN109563877A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
| CN109563878A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
| US10670078B2 (en) | 2016-08-03 | 2020-06-02 | Nsk Ltd. | Ball bearing and main shaft device for machine tool |
| US10690180B2 (en) | 2016-08-03 | 2020-06-23 | Nsk Ltd. | Ball bearing and main shaft device for machine tool |
| US10746227B2 (en) | 2016-08-03 | 2020-08-18 | Nsk Ltd. | Ball bearing and main shaft device for machine tool |
| CN106763166A (en) * | 2016-12-27 | 2017-05-31 | 太原科技大学 | A kind of four row cylinders and taper roller combination bearing |
| CN116592062A (en) * | 2023-06-21 | 2023-08-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Paired angular contact ball bearings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |