CN2743051Y - New type flour line column roller bearing for rolling mill - Google Patents
New type flour line column roller bearing for rolling mill Download PDFInfo
- Publication number
- CN2743051Y CN2743051Y CN 200420087065 CN200420087065U CN2743051Y CN 2743051 Y CN2743051 Y CN 2743051Y CN 200420087065 CN200420087065 CN 200420087065 CN 200420087065 U CN200420087065 U CN 200420087065U CN 2743051 Y CN2743051 Y CN 2743051Y
- Authority
- CN
- China
- Prior art keywords
- retainer
- bearing
- roller bearing
- rib
- line column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a bearing, in particular to a four-row cylindrical roller bearing for heavy mill, comprising an external ring, an internal ring, a flat block ring, a cylindrical roller, a retainer and a retainer cover body, being characterized in that the retainer socket between the retainer pocket holes is connected with the retainer cover body by bolt fixing. The utility model adopts bolt mode to fix the retainer socket and the retainer cover body, which has simple structure and easy installation, which can change the bearing components such as the damaged ferrule, retainer and roller according to the requirement when normal maintaining, and can reduce users' using cost. With adopting free flat block ring and blocked style retainer, the cumulative reliability of the bearing is increased and the service life of the bearing is extended. The utility model has reasonable designing and low using cost, which is profitable to be widely applied.
Description
Technical field
The utility model relates to a kind of bearing, the novel four-line column roller bearing of particularly a kind of large-sized rolling mills.
Background technology
In the prior art, the four-line column roller bearing that milling train is commonly used adopts FC type structure usually, and it is outer ring, solid roller and the comb type entity car system retainer of an inner ring, two band centre ribs.The bearing of this structure also exists some defectives through actual the use under existing process technology:
(1) in the assembling process of bearing, retainer and roller form inseparable assembly, have increased the difficulty of assembly and outer ring assembling.
(2) roller and raceway carrying in the actual use of bearing with inevitable axial load the time, easily cracks and phenomenon of rupture the dead rib in the outside, two outer rings, and then produces the accident of the early stage cataclastic failure of bearing, influences the operate as normal of milling train.
(3) because the inseparability of roller assembly and outer ring causes wherein any one appearance damage, the fact that whole bearing is scrapped forms serious waste on the resource.
In addition, provide a kind of four-line column roller bearing for the zl99200677.5 utility model patent to us in the patent No., form by cylindrical roller, retainer, inner ring and outer ring, the contacted each other rib of its end face of outer ring that it is characterized in that two band ribs is dead rib, the rib of outer ring, two outsides is the sliding damper limit, two dead rib outer rings and its end face of outer ring, two sliding damper limits are in contact with one another, and keep support body and retainer end cap to be fixedly connected.The connecting mode of above-mentioned maintenance support body and retainer end cap adopts the riveted joint form.Though this patent has had significant improvement to FC type airframe bearing, but still there is following problem:
(1) because retainer pedestal and lid are a riveting molding, therefore, when bearing maintains through the cycle working service, find that defective appears in indivedual rollers or retainer, and other assembly is intact, in the time of can continuing to use, defective roller and retainer can't be changed, the bulk life time of bearing can not be prolonged.
(2) that is that all right at present is ripe for the riveting process of retainer pedestal and lid.Present riveting process is relatively poor, occurs stuck roller of retainer or retainer lid and the firm inadequately phenomenon of pedestal riveted joint in riveted joint easily.
(3) inner ring has strengthened difficulty of processing owing to be an integral body, when in use partial failure occurring, must change again, has strengthened use cost, can not embody the superiority that the four-row cylindrical roller bearing for rolling mill inner ring exchanges to greatest extent.
(4) can not set up good lubricating oil film between roller end face and rib, be easy to generate bigger frictional resistance, temperature rise is big, increase the possibility of burn.
Summary of the invention
The purpose of this utility model be for overcome above-mentioned defective provide a kind of simple in structure, part is less, processing and assembly technology strong, it is convenient to safeguard, the novel four-line column roller bearing of long-life milling train that commutativity is strong, reliability is high.
For realizing that the technical scheme that the purpose of this utility model adopts is:
The novel four-line column roller bearing of a kind of milling train comprises outer ring, inner ring, loose rib, cylindrical roller, retainer and retainer lid, it is characterized in that retainer pedestal and the retainer lid between the above-mentioned retainer pocket hole is bolted to connection.
Above-mentioned outer ring, inner ring are two.
Above-mentioned two contacted each other ribs of its end face of outer ring are dead rib, and its outside end face is provided with two movable loose ribs.
The contact-making surface of inboard dead rib of above-mentioned loose rib, outer ring and cylindrical roller is the slope, its gradient is 20 ' ± 2 '.
The outside diameter of above-mentioned loose rib is than the little 1mm of bearing top circle diameter.
Above-mentioned retainer pedestal pocket Kong Liang middle part along the circumferential direction is evenly equipped with arc groove.
The utility model advantage in actual applications has:
(1) the utility model adopts bolt mode fixed retainer pedestal and retainer lid, said structure is simple, installation is easy, when the conventional maintenance of bearing, can as required the bearing parts such as lasso, retainer and roller that damage be changed, reduced user's use cost.
(2) bearing manufacturing and assembly technology have been simplified.Owing to adopted loose rib structure alive, inner ring is divided into two, has simplified the processing technology of inside and outside circle, has made things convenient for the detection of part, has reduced the assembly technology requirement of bearing simultaneously, has reduced the bearing manufacturing cost.
(3) adopt live loose rib and closed retainer, improved the global reliability of bearing, prolonged the service life of bearing.The strength and stiffness of the retainer of enclosed construction have obtained reinforcement, are more suitable for the operating mode rugged environment; Adopt the structure on sliding damper limit to reduce the possibility of falling rib again, improved the working life of bearing.
(4) be convenient to improve the lubricated environment of bearing self.In the maintaining of bearing, the user can be according to the operating position of bearing, at any time judge the working condition of bearing, bearing is cleaned, replenish new lubricating grease, arc groove radially on the cage bar can store a certain amount of lubricating grease simultaneously, roller is carried out self-lubricating, reach the purpose that improves bearing life.
The utility model is reasonable in design, use cost is low, helps applying.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
In conjunction with the accompanying drawings the utility model is further described:
As shown in Figure 1, the utility model outer ring 1, inner ring 2 are two, and two outer ring contacted each other ribs of 1 its end face are dead rib, and the outside, two outer rings is provided with movable loose rib 3, the outside diameter of above-mentioned movable loose rib 3 is than the little 1mm of bearing top circle diameter, and two inner ring 2 end faces are in contact with one another.Be equipped with a retainer 5 between the every pair of inner ring 2, the outer ring 1, the one side is evenly equipped with the pocket hole, be provided with the cylindrical roller 4 of two series connection in each pocket hole, outside the retainer 5 that is provided with pocket hole one side, be provided with the retainer lid 6 corresponding with it, be provided with bolt hole on the retainer pedestal 7 between the pocket hole, it is corresponding with the bolt hole on the retainer lid 6, and above-mentioned retainer pedestal 7 is bolted to connection together with retainer lid 6.In addition, above-mentioned movable loose rib 3, outer ring 1 dead rib and cylindrical roller 4 contact-making surfaces are the slope, the gradient is 20 ' ± 2 ' can effectively reduce wear, reduce load, retainer pedestal 7 pocket Kong Liang middle parts along the circumferential direction are evenly equipped with arc groove simultaneously, can store a certain amount of lubricating grease, cylindrical roller 4 is carried out self-lubricating, reach the purpose that improves bearing life.
Claims (6)
1, the novel four-line column roller bearing of a kind of milling train, comprise outer ring (1), inner ring (2), loose rib (3), cylindrical roller (4), retainer (5) and retainer lid (6), it is characterized in that the retainer pedestal (7) between above-mentioned retainer (5) the pocket hole is bolted to connection with retainer lid (6).
2. the novel four-line column roller bearing of milling train according to claim 1 is characterized in that above-mentioned outer ring (1), inner ring (2) are two.
3, the novel four-line column roller bearing of milling train according to claim 2 is characterized in that above-mentioned two outer rings (1) contacted each other rib of its end face is dead rib, and its outside end face is provided with two movable loose ribs (3).
4, the novel four-line column roller bearing of milling train according to claim 3 is characterized in that the contact-making surface of inboard dead rib of above-mentioned loose rib (3), outer ring (1) and cylindrical roller (4) is the slope, its gradient is 20 ' ± 2 '.
5, the novel four-line column roller bearing of milling train according to claim 4, the outside diameter that it is characterized in that above-mentioned loose rib (3) is than the little 1mm of bearing top circle diameter.
6,, it is characterized in that above-mentioned retainer pedestal (7) pocket Kong Liang middle part along the circumferential direction is evenly equipped with arc groove according to the novel four-line column roller bearing of described any milling train of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087065 CN2743051Y (en) | 2004-08-14 | 2004-08-14 | New type flour line column roller bearing for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087065 CN2743051Y (en) | 2004-08-14 | 2004-08-14 | New type flour line column roller bearing for rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743051Y true CN2743051Y (en) | 2005-11-30 |
Family
ID=35633072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420087065 Expired - Fee Related CN2743051Y (en) | 2004-08-14 | 2004-08-14 | New type flour line column roller bearing for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2743051Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286583A (en) * | 2016-08-31 | 2017-01-04 | 瓦房店正达冶金轧机轴承有限公司 | A kind of four-line column roller bearing |
| CN113389812A (en) * | 2021-07-09 | 2021-09-14 | 江苏钱潮轴承有限公司 | High-stability easy-to-clean four-row cylindrical roller bearing and machining method thereof |
-
2004
- 2004-08-14 CN CN 200420087065 patent/CN2743051Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286583A (en) * | 2016-08-31 | 2017-01-04 | 瓦房店正达冶金轧机轴承有限公司 | A kind of four-line column roller bearing |
| CN113389812A (en) * | 2021-07-09 | 2021-09-14 | 江苏钱潮轴承有限公司 | High-stability easy-to-clean four-row cylindrical roller bearing and machining method thereof |
| CN113389812B (en) * | 2021-07-09 | 2024-04-05 | 江苏钱潮轴承有限公司 | High-stability easy-to-clean four-row cylindrical roller bearing and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20130814 |