CN101799040A - Self-pretightening double-row tapered roller bearing - Google Patents

Self-pretightening double-row tapered roller bearing Download PDF

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Publication number
CN101799040A
CN101799040A CN200910220472A CN200910220472A CN101799040A CN 101799040 A CN101799040 A CN 101799040A CN 200910220472 A CN200910220472 A CN 200910220472A CN 200910220472 A CN200910220472 A CN 200910220472A CN 101799040 A CN101799040 A CN 101799040A
Authority
CN
China
Prior art keywords
bearing
double
inner ring
row tapered
roller
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.)
Pending
Application number
CN200910220472A
Other languages
Chinese (zh)
Inventor
李华伟
张清
吴非
柳枫
徐淑萍
赵明良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wafangdian Bearing Group Corp
Original Assignee
Wafangdian Bearing Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wafangdian Bearing Group Corp filed Critical Wafangdian Bearing Group Corp
Priority to CN200910220472A priority Critical patent/CN101799040A/en
Publication of CN101799040A publication Critical patent/CN101799040A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C19/34—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 both radial and axial load
    • F16C19/38—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 both radial and axial load with two or more rows of rollers
    • F16C19/383—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 both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—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 both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • 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
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F16C25/08—Ball or roller bearings self-adjusting
    • F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • 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
    • F16C2320/00—Apparatus used in separating or mixing
    • F16C2320/23—Milling apparatus
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to a self-pretightening double-row tapered roller bearing which is mainly applied in the steel industry and is used on the roll of a rolling mill. The bearing comprises two single-race outer rings, an inner ring, precompression springs, a retainer and a roller. Eight to sixteen precompression springs are installed in grooves on the two end surfaces of each outer ring. The retainer, the roller and the inner ring form a double-row tapered inner assembly. The double-row tapered inner assembly and the single-race outer rings form a complete bearing. The inner ring is provided with an inclined key groove which is used to position a structure. The invention has the advantages that the axial loading requirement is well satisfied and the problems of uneasy clearance control, bearing inner ring creep, short service life and temperature rise are effectively solved.

Description

Self-pretightening double-row tapered roller bearing
Technical field
The present invention relates to a kind of steel industry that is mainly used in, be used in the self-pretightening double-row tapered roller bearing on the rolling mill roll.
Background technique
Traditional roller-mill bearing was the normal configuration double-row conical bearing originally, bore thrust load.Because these bearing structure characteristics, bearing are in installation process, dress back play can only rely on the operator rule of thumb to adjust, and very wayward, the excessive or too small bearing that all can cause damages in advance.
Summary of the invention
Bearing dress back play is wayward, bearing inner race is wriggled, working life is low, the problem of temperature rise, the invention provides a kind of self-pretightening double-row tapered roller bearing in order to overcome.
Technological scheme of the present invention is: self-pretightening double-row tapered roller bearing, comprise two single raceway outer rings 2, inner ring 5, loaded spring 1, retainer 3 and a roller 4,8～16 loaded springs 1 respectively are installed in the groove of outer ring 2 both ends of the surface, retainer 3, roller 4 and inner ring 5 are formed biserial circular cone Inner assembly, complete bearing is formed in biserial circular cone Inner assembly and single raceway outer ring 2, and wherein inner ring 5 has the taper key groove and positions structure.
The invention has the beneficial effects as follows: not only well satisfy the thrust load requirement, and solved effectively that play is wayward, bearing inner race wriggling, working life are low, the problem of temperature rise.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, loaded spring, 2, the outer ring, 3, retainer, 4, roller, 5, inner ring.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, self-pretightening double-row tapered roller bearing, comprise two single raceway outer rings 2, inner ring 5, loaded spring 1, retainer 3 and a roller 4,12 loaded springs 1 respectively are installed in the groove of outer ring 2 both ends of the surface, retainer 3, roller 4 and inner ring 5 are formed biserial circular cone Inner assembly, complete bearing is formed in biserial circular cone Inner assembly and single raceway outer ring 2, and wherein inner ring 5 has the taper key groove and positions structure.

Claims (1)

1. self-pretightening double-row tapered roller bearing, it is characterized in that, this bearing comprises two single raceway outer rings (2), an inner ring (5), loaded spring (1), retainer (3) and roller (4), 8～16 loaded springs (1) respectively are installed in the groove of outer ring (2) both ends of the surface, retainer (3), roller (4) and inner ring (5) are formed biserial circular cone inner assembly, complete bearing is formed in biserial circular cone inner assembly and single raceway outer ring (2), and wherein inner ring (5) has the taper key groove and positions structure.
CN200910220472A 2009-12-07 2009-12-07 Self-pretightening double-row tapered roller bearing Pending CN101799040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910220472A CN101799040A (en) 2009-12-07 2009-12-07 Self-pretightening double-row tapered roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910220472A CN101799040A (en) 2009-12-07 2009-12-07 Self-pretightening double-row tapered roller bearing

Publications (1)

Publication Number Publication Date
CN101799040A true CN101799040A (en) 2010-08-11

Family

ID=42594850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910220472A Pending CN101799040A (en) 2009-12-07 2009-12-07 Self-pretightening double-row tapered roller bearing

Country Status (1)

Country Link
CN (1) CN101799040A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528893A (en) * 2013-10-11 2014-01-22 济南康和消防技术有限公司 Rotary sealing device for water hose
CN104492815A (en) * 2014-12-01 2015-04-08 中冶华天工程技术有限公司 Vertical roll device for universal mill
CN105723106A (en) * 2013-11-13 2016-06-29 Ntn株式会社 Bearing preloading device
CN109322910A (en) * 2018-11-27 2019-02-12 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Replaceable preloading spring tapered roller bearing
CN110848247A (en) * 2019-11-14 2020-02-28 瓦房店轴承集团国家轴承工程技术研究中心有限公司 High-end hectometer rail beam vertical roll tapered roller bearing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528893A (en) * 2013-10-11 2014-01-22 济南康和消防技术有限公司 Rotary sealing device for water hose
CN105723106A (en) * 2013-11-13 2016-06-29 Ntn株式会社 Bearing preloading device
US9863469B2 (en) 2013-11-13 2018-01-09 Ntn Corporation Bearing preloading device
CN105723106B (en) * 2013-11-13 2021-06-11 Ntn株式会社 Bearing pre-pressing device
CN104492815A (en) * 2014-12-01 2015-04-08 中冶华天工程技术有限公司 Vertical roll device for universal mill
CN104492815B (en) * 2014-12-01 2016-05-25 中冶华天工程技术有限公司 Universal rolling mill vertical roll device
CN109322910A (en) * 2018-11-27 2019-02-12 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Replaceable preloading spring tapered roller bearing
CN110848247A (en) * 2019-11-14 2020-02-28 瓦房店轴承集团国家轴承工程技术研究中心有限公司 High-end hectometer rail beam vertical roll tapered roller bearing

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Open date: 20100811