CN103322038A - Reinforced four-row cylindrical roller bearing - Google Patents
Reinforced four-row cylindrical roller bearing Download PDFInfo
- Publication number
- CN103322038A CN103322038A CN 201210075922 CN201210075922A CN103322038A CN 103322038 A CN103322038 A CN 103322038A CN 201210075922 CN201210075922 CN 201210075922 CN 201210075922 A CN201210075922 A CN 201210075922A CN 103322038 A CN103322038 A CN 103322038A
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- bearing
- pillar
- riveting
- row cylindrical
- cylindrical roller
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Abstract
The invention relates to a reinforced four-row cylindrical roller bearing, which comprises a bearing inner ring, two bearing retainers sleeved on the bearing inner ring, and a bearing outer ring sleeved on the two bearing retainers. Two ends of each pillar are riveting heads connected to edge retaining rings. Each riveting head has an elliptical cross section, the length of the riveting head is greater than that of a riveting hole, and the riveting heads are in interference fit with the riveting holes on the edge retaining rings. A curved surface fitting with a roller is formed on one pillar side face towards the roller. The seamed edge of each pillar is provided with an oil passing groove, and the bottom of the pillar's curved surface is axially provided with a lubricating groove communicated with the oil passing groove. By designing the length of the pillars' riveting heads in the bearing retainers greater than those of the riveting holes, which are in interference fit with the riveting heads, and by designing the riveting heads with elliptical cross sections, the riveting heads are difficult to slip out of the riveting holes in the edge retaining rings, so that the stability of the bearing retainers is improved.
Description
Technical field
The present invention relates to a kind of enhanced four-row cylindrical roller bearing.
Background technique
Nowadays the normal four-line column roller bearing that uses with comb type copper cage of people in steel rolling is produced, this bearing is under the condition of normal operation, bearing radial load satisfies the rolling using effect that requires fully can be fine, but the grinding undercut that bearing outer ring arranges is more, bearing load is less, retainer intensity is lower, and lubricating status is bad.
When this class bearing is larger in rolling load, impact load is larger, and when speed was higher, the damage of bearings rate increased thereupon, brought larger economic loss to steel mill.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of enhanced four-row cylindrical roller bearing is provided, solve retainer structural instability in the bearing, lubricated inadequate shortcoming.
The technical solution adopted for the present invention to solve the technical problems is: a kind of enhanced four-row cylindrical roller bearing, comprise bearing inner race, be socketed in two retainers on the bearing inner race and the bearing outer ring that is socketed two retainers, the bearing outer ring both sides are provided with loose rib, described retainer connects two side bumper circles by pillar and forms column structure, the pillar two ends are the die of fillet back-up ring, rivet hole on die and the side bumper circle is interference fit, be formed for the pocket hole of clamp axis bearing roller between adjacent two pillars, be placed with two bearing rollers free to rotate in each pocket hole.
Furtherly, described pillar is formed with the curved surface suitable with roller towards the side of roller, is provided with oil groove on the seamed edge of described pillar, and the curved bottom portion of pillar axially offers the lubrication groove that communicates with the mistake oil groove.
Furtherly, the length of described die is greater than the length of rivet hole.Die length is greater than the length of rivet hole, and pillar is after fixing like this, and die just has one section and stretches out outside rivet hole, and pillar just is not easy that slippage out makes the stability of retainer higher from rivet hole like this.
Furtherly, described die cross section is oval.Ellipsoidal structure can so that pillar is difficult for rotating, improve the stability of retainer.
Furtherly, described bearing outer ring offers the lubrication hole for charging-up lubricant oil.
Furtherly, described bearing outer ring, bearing inner race, retainer and roller all adopt steel material to make.Adopt steel material, can make bearing lightweight, intensity is high, lubricates, and is applicable to high rotating speed, can be indeformable under hot environment, and the use face of the bearing of expansion.
The invention has the beneficial effects as follows: the invention provides a kind of enhanced four-row cylindrical roller bearing, by the length of the pillar die in the retainer is arranged to greater than rivet hole length, it is interference fit between die and the rivet hole, and the sectional shape of die is designed to ellipse, slippage out improves the stability of retainer from the rivet hole of side bumper circle so that die is not easy like this; Bearing outer ring, bearing inner race, retainer and roller all adopt steel material to make, and can make bearing lightweight, and intensity is high, lubricates, and is applicable to high rotating speed, can be indeformable under hot environment, and the use face of the bearing of expansion.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the end view of retainer;
Fig. 3 is the sectional view of A-A among Fig. 2;
Fig. 4 is the partial enlarged drawing at B place among Fig. 2.
Wherein: 1, bearing inner race, 2, retainer, 21, pillar, 22, die, 23, cross oil groove, 24, lubrication groove, 25, the side bumper circle, 3, bearing outer ring, 31, lubrication hole.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in Figure 4 such as Fig. 1 Fig. 2 Fig. 3, a kind of enhanced four-row cylindrical roller bearing, the bearing outer ring 3 that comprises bearing inner race 1, is socketed in two retainers 2 on the bearing inner race 1 and is socketed two retainers 2, bearing outer ring 3 both sides are provided with loose rib, retainer 2 connects two side bumper circles 25 by pillar 21 and forms column structure, bearing outer ring 3 offers the lubrication hole 31 for charging-up lubricant oil, and bearing outer ring 3, bearing inner race 1, retainer 2 and roller all adopt steel material to make.
Pillar 21 two ends are the die 22 of fillet back-up ring 25, and die 22 cross sections are oval, and the rivet hole on die 22 and the side bumper circle 25 is interference fit, and the length of die 22 is greater than the length of rivet hole.
Be formed for the pocket hole of clamp axis bearing roller between adjacent two pillars 21, be placed with two bearing rollers free to rotate in each pocket hole, pillar 21 is formed with the curved surface suitable with roller towards the side of roller, be provided with oil groove 23 on the seamed edge of pillar 21, the curved bottom portion of pillar 21 axially offers the lubrication groove 24 that communicates with mistake oil groove 23.
Die 22 length on retainer 2 B-C posts 21 are arranged to greater than rivet hole length, it is interference fit between die 22 and the rivet hole, and the sectional shape of die 22 is designed to ellipse, slippage out improves the stability of retainer 2 from the rivet hole of side bumper circle 25 so that die 22 is not easy like this; Bearing outer ring 3, bearing inner race 1, retainer 2 and roller all adopt steel material to make, and can make bearing lightweight, and intensity is high, lubricates, and is applicable to high rotating speed, can be indeformable under hot environment, and the use face of the bearing of expansion; Pillar 21 at retainer 2 arranged oil groove 23 and lubrication groove 24, made bearing lubrication more abundant, and the bearing oil content is higher, can deposit lubricant grease 10% more.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (6)
1. enhanced four-row cylindrical roller bearing, it is characterized in that: comprise bearing inner race (1), the bearing outer ring (3) that is socketed in two retainers (2) on the bearing inner race (1) and is socketed two retainers (2), bearing outer ring (3) both sides are provided with loose rib, described retainer (2) connects two side bumper circles (25) by pillar (21) and forms column structure, pillar (21) two ends are the die (22) of fillet back-up ring (25), rivet hole on die (22) and the side bumper circle (25) is interference fit, be formed for the pocket hole of clamp axis bearing roller between adjacent two pillars (21), be placed with two bearing rollers free to rotate in each pocket hole.
2. enhanced four-row cylindrical roller bearing according to claim 1, it is characterized in that: described pillar (21) is formed with the curved surface suitable with roller towards the side of roller, be provided with oil groove (23) on the seamed edge of described pillar (21), the curved bottom portion of pillar (21) axially offers the lubrication groove (24) that communicates with mistake oil groove (23).
3. enhanced four-row cylindrical roller bearing according to claim 1, it is characterized in that: the length of described die (22) is greater than the length of rivet hole.
4. enhanced four-row cylindrical roller bearing according to claim 1 is characterized in that: described die (22) cross section is for oval.
5. enhanced four-row cylindrical roller bearing according to claim 1, it is characterized in that: described bearing outer ring (3) offers the lubrication hole (31) for charging-up lubricant oil.
6. enhanced four-row cylindrical roller bearing according to claim 1, it is characterized in that: described bearing outer ring (3), bearing inner race (1), retainer (2) and roller all adopt steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210075922 CN103322038A (en) | 2012-03-21 | 2012-03-21 | Reinforced four-row cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210075922 CN103322038A (en) | 2012-03-21 | 2012-03-21 | Reinforced four-row cylindrical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103322038A true CN103322038A (en) | 2013-09-25 |
Family
ID=49190994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210075922 Pending CN103322038A (en) | 2012-03-21 | 2012-03-21 | Reinforced four-row cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103322038A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745459A (en) * | 2013-11-21 | 2016-07-06 | Ntn株式会社 | Needle roller bearing with double row of retainers |
| CN107965525A (en) * | 2018-01-04 | 2018-04-27 | 瓦房店冶金轴承集团有限公司 | A kind of bearing equipped with riveter connection retainer |
-
2012
- 2012-03-21 CN CN 201210075922 patent/CN103322038A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745459A (en) * | 2013-11-21 | 2016-07-06 | Ntn株式会社 | Needle roller bearing with double row of retainers |
| US10184517B2 (en) | 2013-11-21 | 2019-01-22 | Ntn Corporation | Needle roller bearing with double row of retainers |
| CN107965525A (en) * | 2018-01-04 | 2018-04-27 | 瓦房店冶金轴承集团有限公司 | A kind of bearing equipped with riveter connection retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |