CN201196203Y - Four-row cylinder roller bearing for rolling mill without bias loading - Google Patents
Four-row cylinder roller bearing for rolling mill without bias loading Download PDFInfo
- Publication number
- CN201196203Y CN201196203Y CNU200820300791XU CN200820300791U CN201196203Y CN 201196203 Y CN201196203 Y CN 201196203Y CN U200820300791X U CNU200820300791X U CN U200820300791XU CN 200820300791 U CN200820300791 U CN 200820300791U CN 201196203 Y CN201196203 Y CN 201196203Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- rolling mill
- roller bearing
- retainer
- row
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 11
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 abstract description 2
- 238000003801 milling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4611—Cages for rollers or needles with hybrid structure, i.e. with parts made of distinct materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/28—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with two or more rows of rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a four-row roller bearing which is used for a high bearing rolling mill and is provided with double outer rings (1) and double inner rings (2) provided side by side, retainers (6) are arranged between outer rings (1) and inner rings (2), each retainer (6) is uniformly fixed with two-row rollers (4) along circle direction. The four-row roller bearing is characterized in that tail ends of retainers (6) are provided with spring steel wires (5). Compared with the prior bearing, due to adopting the above structure, the four-row roller bearing overcomes shortages that the prior bearing is inconvenient for fixing and sunken problem of rollers when repairing, improves accuracy and increases bearing capacity and operating life of the bearing. Practice proves that compared with the bearing with same sizes, radial bearing live load improves by 30%, operating life improves by 50 times, and linear speed of the rolling mill can improve to more than 60%, and working process of retainers is simplified, convenient and is easy for operating.
Description
Technical field:
The utility model relates to a kind of four-row cylindrical roller bearing for rolling mill, especially a kind of four row roller bearing for rolling mill of high bearing capacity.
Background technique:
By two foreign countries, two inner rings, two comb shape retainers and four-row cylindrical roller constitute with bearing FCD type for the milling train known the sixth of the twelve Earthly Branches.Existing milling train is with each outer state-owned two outer rib of four row cylindrical bearings, a centre rib, so foreign complex structure, technology capability is poor, precision is not high.Owing to adopt the comb shape retainer, cylindrical roller contacts with retainer is half of vertically, half of in addition easily countersunk head again, bearing capacity difference and be unfavorable for the assembling of inner ring like this, when the reconditioning roll, be with bearing inner race to unload roll especially, difficulty is bigger when installing after the reconditioning again.
Summary of the invention:
The utility model is at the said structure complexity of prior art, and deficiencies such as bearing capacity difference and installation inconvenience provide a kind of foreign country simple in structure, and four-row cylindrical roller bearing of high-bearing rolling mill easy for installation.
Technical solution of the present utility model is: a kind of four-row cylindrical roller bearing of high-bearing rolling mill, two foreign countries and two inner ring have been arranged side by side, between foreign country and inner ring, be provided with retainer, along the circumferential direction uniform two line column rollers that are equipped with on each retainer, it is characterized in that: the tail end of described retainer is provided with Spring Steel Wire.
Described Spring Steel Wire is to be connected in the groove of retainer tail end, and Spring Steel Wire is ring-type and is provided with opening.
The utility model changes bearing structure, and foreign country does not have centre rib, is convenient to grinding and has improved precision.Retainer adopts the structure of tail end fluting with the Spring Steel Wire fore shaft, and the gap of having eliminated per two row rollers, and cylindrical roller length increases relatively, and the end face of two row rollers has increased bearing capacity against being contained in the retainer, has improved working life.This bearing is owing to adopted aforesaid structure, compare with known bearing, the countersunk head problem of roller when having solved inconvenient assembling and maintenance, and improved bearing capacity and working life that precision has increased bearing, facts have proved that the utility model is compared with the bearing of same size, radially Cheng Zai dynamic load has improved 30%, improve 50 times working life, and the linear velocity of milling train can improve more than 60%, the retainer course of working is simplified, convenient, easy row.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model foreign country.
Fig. 3 is the structural representation of the utility model retainer.
Fig. 4 is the structural representation of the utility model Spring Steel Wire.
Embodiment:
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Shown in Fig. 1 ~ 4, a kind of four-row cylindrical roller bearing of high-bearing rolling mill, two foreign countries 1 and two inner ring 2 have been arranged side by side, be provided with retainer 6 in foreign country 1 and 2 of inner rings, along the circumferential direction uniform two line column rollers 4 that are equipped with on each retainer 6, the tail end of described retainer 6 is provided with groove, is connected with Spring Steel Wire 5 in it.Spring Steel Wire 5 is for ring-type and be provided with opening 3.In four-row cylindrical roller, the end face of per two row rollers 4 is against being contained in the retainer 6, because the gap of having eliminated per two row rollers, the length of the bearing roller of same widths has increased, thereby increased area of contact with inside and outside state, improved bearing capacity and working life.The retainer 6 of each tail end opening is packed into behind the cylindrical roller 4, is the fluting place locking of Spring Steel Wire 5 being put into retainer during end socket.
Claims (2)
1. four-row cylindrical roller bearing of high-bearing rolling mill, two outer rings (1) and two inner ring (2) have been arranged side by side, between outer ring (1) and inner ring (2), be provided with retainer (6), along the circumferential direction uniform two line column rollers (4) that are equipped with on each retainer (6), it is characterized in that: the tail end of described retainer (6) is provided with Spring Steel Wire (5).
2. four-row cylindrical roller bearing of high-bearing rolling mill according to claim 1 is characterized in that: described Spring Steel Wire (5) is to be connected in the groove of retainer (6) tail end, and Spring Steel Wire (5) is for ring-type and be provided with opening (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820300791XU CN201196203Y (en) | 2008-05-19 | 2008-05-19 | Four-row cylinder roller bearing for rolling mill without bias loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820300791XU CN201196203Y (en) | 2008-05-19 | 2008-05-19 | Four-row cylinder roller bearing for rolling mill without bias loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196203Y true CN201196203Y (en) | 2009-02-18 |
Family
ID=40415839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820300791XU Expired - Fee Related CN201196203Y (en) | 2008-05-19 | 2008-05-19 | Four-row cylinder roller bearing for rolling mill without bias loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196203Y (en) |
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2008
- 2008-05-19 CN CNU200820300791XU patent/CN201196203Y/en not_active Expired - Fee Related
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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: 20090218 Termination date: 20110519 |