CN201866102U - Novel double-row cylindrical roller bearing - Google Patents

Novel double-row cylindrical roller bearing Download PDF

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Publication number
CN201866102U
CN201866102U CN2010206398772U CN201020639877U CN201866102U CN 201866102 U CN201866102 U CN 201866102U CN 2010206398772 U CN2010206398772 U CN 2010206398772U CN 201020639877 U CN201020639877 U CN 201020639877U CN 201866102 U CN201866102 U CN 201866102U
Authority
CN
China
Prior art keywords
rows
rollers
cylindrical roller
raceway
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
Application number
CN2010206398772U
Other languages
Chinese (zh)
Inventor
郭笑男
郭晓红
杨国吉
徐芳超
孙作鹏
丛文兴
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 JINFENG BEARING MANUFACTURING Co Ltd
Original Assignee
WAFANGDIAN JINFENG BEARING MANUFACTURING Co Ltd
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 JINFENG BEARING MANUFACTURING Co Ltd filed Critical WAFANGDIAN JINFENG BEARING MANUFACTURING Co Ltd
Priority to CN2010206398772U priority Critical patent/CN201866102U/en
Application granted granted Critical
Publication of CN201866102U publication Critical patent/CN201866102U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86Optimisation of rolling resistance, e.g. weight reduction 

Abstract

The utility model relates to a novel double-row cylindrical roller bearing which comprises an outer ring, an inner ring, a retainer, two rows of cylindrical rollers arranged between the inner ring and the outer ring, and retainers for the two rows of cylindrical rollers, wherein an outer ring raceway matched with the two rows of cylindrical rollers is a single raceway containing the two rows of cylindrical rollers simultaneously, a raceway for the two rows of cylindrical rollers is not provided with a flange between the two rows of rollers, and can be ground in one time, and the size of the raceway is consistent with coaxiality to facilitate backlash configuration. Preferably, opposite ends of the two rows of cylindrical rollers are provided with shaft holes, and the retainers are provided with pin shafts matched with the shaft holes. Preferably, staggered arrangement of two rows of pockets of the comb-shaped retainers is changed to symmetrical arrangement, a through hole is drilled at the bottom of each pocket, each pin shaft penetrates through the through hole, two ends of the pin shafts are respectively matched with the shaft holes in the opposite ends of the two rows of cylindrical rollers, the shaft holes and the pin shafts are positioned on a center line of the rollers, linear velocity tends to be zero, and the rollers are stable in operation and low in friction.

Description

A kind of novel Biserial cylindrical roller bearing
Technical field
The present invention relates to a kind of novel bearing, specifically is a kind of NNU type Biserial cylindrical roller bearing.
Background technique
Existing NNU Biserial cylindrical roller bearing type is used for machine tool chief axis, and the structural type of home and abroad is as shown in Figure 1, three ribs in outer ring, and inner ring does not have rib, the pectination retainer, two row pocket holes are staggered.
Such structural type is the product structure of a maturation, blemish in an otherwise perfect thing be the two raceways in outer ring, twice grinding that is installed, size is difficult to guarantee consistent with coaxality.It is consistent that the configuration of play is difficult to reach two row.
Summary of the invention
The present invention is exactly in order to overcome the two raceways in existing Biserial cylindrical roller bearing outer ring, grinding is installed for twice, size is difficult to guarantee consistent with coaxality, the configuration of play is difficult to reach the consistent technical problem of two row, provides a kind of configuration of two line column roller play to reach consistent novel Biserial cylindrical roller bearing.
Novel Biserial cylindrical roller bearing of the present invention, outer ring, inner ring, retainer are arranged, two line column rollers that are provided with between the Internal and external cycle and the retainer of two line column rollers, it is characterized in that: the outer ring raceway that cooperates with two line column rollers is for containing single raceway of two line column rollers simultaneously, the raceway that two line column rollers roll does not have rib between two row rollers, just be to have cancelled the outer ring centre rib, and raceway can a grinding like this, two raceway sizes and coaxality unanimity, play disposes well.The cancellation of outer ring centre rib in addition can increase roller length thus, the lengthening of roller, and dynamic load rating increases, and the life-span improves.Spacing between two line column rollers adopts the relative end of two line column rollers to have axis hole, and retainer has the bearing pin that cooperates with axis hole.After the centre rib cancellation of outer ring, on retainer, done article.Preferably change pectination retainer two row pocket holes and be staggered, be symmetric arrays, bore a through hole in bottom, pocket hole, be installed with bearing pin by through hole, the two ends of bearing pin cooperate (as Fig. 3) with the axis hole of two line column roller opposite ends respectively.A roundlet nest is bored in roller end in contact with it, and small roller is inserted.Because the circle nest is on the roller centre line, linear velocity is zero, and the roller running is steadily hanged down friction, and is very desirable.
Description of drawings
Fig. 1 has represented that existing NNU type Biserial cylindrical roller bearing simplifies (symmetry half) sectional view, and Fig. 2 has represented the partial view that existing NNU type Biserial cylindrical roller bearing retainer launches; Fig. 3 has represented that a kind of novel type Biserial cylindrical roller bearing of the present invention simplifies (symmetry half) sectional view, and Fig. 4 has represented the partial view that a kind of novel Biserial cylindrical roller bearing retainer of the present invention launches.
Embodiment
As Fig. 3 of accompanying drawing, 4 represented a kind of novel Biserial cylindrical roller bearings of the present invention, outer ring 1, inner ring 3, retainer 4, two line column rollers 2 are arranged, the retainer 4 of two line column rollers 2 and two line column rollers is being set between the Internal and external cycle.The outer ring raceway that cooperates with two line column rollers is the single raceway that is containing two line column roller outer ends arranged side by side, the raceway of two line column rollers rolling just is a straight-through raceway, change existing two dual-cavity raceways arranged side by side, formed between two row rollers and do not had rib, just be to have cancelled existing outer ring centre rib, the raceway of such two line column rollers can a grinding, two place's roller surfaces of two line column rollers institute scrolling position reach respectively and one sidewinder the side, can be easy to keep size and coaxality unanimity, play also can well dispose.The cancellation of outer ring centre rib in addition, the bearing of same specification can increase roller length thus, the lengthening of roller, dynamic load rating increases, and the life-span improves thus.Spacing between two line column rollers, it is spacing to adopt retainer to guarantee, preferably adopts the relative end of two line column rollers to have axis hole, and retainer has the bearing pin 5 that cooperates with axis hole, bearing pin one end and pin-and-hole better keep two line column rollers to roll stably movingly.After the centre rib cancellation of outer ring, when being symmetric arrays, preferably changing pectination retainer two row pocket holes and be staggered, become symmetric arrays in two row pocket holes of retainer.The setting of bearing pin like this is to bore a through hole in pocket hole bottom centre, and through hole is installed with bearing pin, and through hole is stretched out at the two ends of bearing pin, and two ends cooperate (the broken section part of seeing bearing pin 5 positions of Fig. 3) respectively with the axis hole of two line column roller opposite ends.Bearing pin also is equivalent to the small roller of a cooperation like this, bores a roundlet nest at the two line column roller opposed ends that contact with it, forms axis hole, and small roller end (bearing pin end) is inserted.Because circle nest (axis hole) is on the roller centre line, linear velocity is close to zero, the position running is steady separately at a raceway effectively to keep two line column rollers (being equivalent to large roller), and low friction is that the very desirable Biserial cylindrical roller bearing of a kind of the present invention is optimized structure.For versatility that further guarantees assembling and the efficient of assembling, be known as the double-row cylindrical roller of large roller, the roller two ends all have axis hole, and the roller of double-row cylindrical roller can be placed fast during assembling, needn't consider direction, the axis hole that can both guarantee the opposite end inserts small roller, guarantees the location.Insert respectively in the axis hole of large roller end face at the two ends of small roller like this, and roller rotates and drives the retainer rotation.

Claims (5)

1. novel Biserial cylindrical roller bearing, outer ring, inner ring, retainer are arranged, two line column rollers that are provided with between the Internal and external cycle and the retainer of two line column rollers is characterized in that: the outer ring raceway that cooperates with two line column rollers is for containing single raceway of two line column rollers simultaneously.
2. as the said a kind of novel Biserial cylindrical roller bearing of claim 1, it is characterized in that: the end that two line column rollers are relative has axis hole, and retainer has the bearing pin that cooperates with axis hole.
3. as claim 1 or 2 said a kind of novel Biserial cylindrical roller bearings, it is characterized in that: retainer two row pocket holes are symmetric arrays, bore a through hole in bottom, pocket hole, through hole is installed with bearing pin, and the two ends of bearing pin cooperate with the axis hole of two line column roller opposite ends respectively.
4. as claim 1 or 2 said a kind of novel Biserial cylindrical roller bearings, it is characterized in that: double-row cylindrical roller, the roller two ends all have axis hole.
5. as the said a kind of novel Biserial cylindrical roller bearing of claim 3, it is characterized in that: double-row cylindrical roller, the roller two ends all have axis hole.
CN2010206398772U 2010-11-30 2010-11-30 Novel double-row cylindrical roller bearing Expired - Fee Related CN201866102U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206398772U CN201866102U (en) 2010-11-30 2010-11-30 Novel double-row cylindrical roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206398772U CN201866102U (en) 2010-11-30 2010-11-30 Novel double-row cylindrical roller bearing

Publications (1)

Publication Number Publication Date
CN201866102U true CN201866102U (en) 2011-06-15

Family

ID=44137258

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206398772U Expired - Fee Related CN201866102U (en) 2010-11-30 2010-11-30 Novel double-row cylindrical roller bearing

Country Status (1)

Country Link
CN (1) CN201866102U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606625A (en) * 2012-03-28 2012-07-25 袁伟民 Double-column backing bearing
CN105508433A (en) * 2016-02-17 2016-04-20 张广 Double-row cylindrical roller bearing with angle compensation function and damping function
CN105526263A (en) * 2016-02-17 2016-04-27 张广 Double-row cylindrical roller bearing with both displacement compensation function and vibration reduction function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606625A (en) * 2012-03-28 2012-07-25 袁伟民 Double-column backing bearing
CN105508433A (en) * 2016-02-17 2016-04-20 张广 Double-row cylindrical roller bearing with angle compensation function and damping function
CN105526263A (en) * 2016-02-17 2016-04-27 张广 Double-row cylindrical roller bearing with both displacement compensation function and vibration reduction function

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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: 20110615

Termination date: 20121130