CN102506075A - Self-aligning roller bearing split-type retainer and design method thereof - Google Patents
Self-aligning roller bearing split-type retainer and design method thereof Download PDFInfo
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- CN102506075A CN102506075A CN2011103502383A CN201110350238A CN102506075A CN 102506075 A CN102506075 A CN 102506075A CN 2011103502383 A CN2011103502383 A CN 2011103502383A CN 201110350238 A CN201110350238 A CN 201110350238A CN 102506075 A CN102506075 A CN 102506075A
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Abstract
The invention discloses a self-aligning roller bearing split-type retainer and a design method thereof. The outer diameter of the retainer is increased based on a current double-claw integral solid retainer, so that the outer diameter dimension Dc of the retainer is bigger than the inner diameter dimension of an outer ring; the middle part of the retainer is split into a left half part and a right half part from the middle part, and then split into two halves from the centre of a pocket hole along the axial direction of the left half part and the right half part of the retainer; the right half part of the retainer is rotated by 90 degrees clockwise or clockwise to stagger the axial split part, so that the centre of a beam on the right half part of the retainer is aligned to the centre of the pocket hole on the right half part of the retainer, and drilled with a connecting hole in a matched manner; four parts respectively formed in the radial direction and the axial direction of the retainer are placed between the inner ring and the outer ring of the bearing, and then rotate out with the inner ring from an outer ring roller, and finally are connected together by a plurality of inner hexagonal bolts and spring pins to form an integer. The retainer has high strength and high reliability, so that the bearing has high carrying capacity in the axial direction and the radial direction, and operating stability.
Description
Technical field
The invention belongs to technical field of bearings, especially relate to a kind of selfaligning roller bearing split type retainer and design method thereof.
Background technique
At present, selfaligning roller bearing generally is made up of inner ring 4, outer ring 1, rolling element 2 and retainer 3, and is as shown in Figure 1, and selfaligning roller bearing can self-aligning, mainly bears radial load, also has higher thrust load ability simultaneously.Selfaligning roller bearing is high with its bearing capacity; Resistance to shock is good; And can compensate because the concentricity that the distortion with axle causes is installed, be widely used in the various machinery such as steelmaking converter, continuous casting machinery, papermaking equipment, elevating mechanism, speed reducer, vibrating machine of industries such as iron and steel, papermaking, sea-freight, electric power.
The retainer of existing selfaligning roller bearing is two pawl integrative-structure solid cages, is also referred to as CA type structure.This structure is used in selfaligning roller bearing very extensively, and technology is comparative maturity also.But for light wide serial bearing, also there are some problems in this structure at present in design and processing.Because light wide serial bearing requires the retainer outside dimension Dc can not be greater than outer ring internal diameter size D1 in when design, so retainer thickness design thinner usually, retainer intensity relatively a little less than.Add man-hour, retainer pocket hole bottom centre and external diameter distance are very little, and bit central is unstable, often causes pocket hole machining error bigger, and roller is crooked or stuck easily in retainer pocket hole.Simultaneously, increase, cancelled the movable guide ring at inner ring middle part or fixing guide ring, reduced the axial carrying capacity of bearing in order to make this structure retainer thickness; Roller length also reduces to some extent, thereby makes also corresponding the reducing of radially bearing capacity of bearing, and the life-span is shorter.
Summary of the invention
For addressing the above problem; The purpose of this invention is to provide a kind of selfaligning roller bearing split type retainer and design method thereof; It makes retainer have high tenacity and high reliability through improving the structure of retainer, and then makes bearing have higher axial radially bearing capacity and the run stability of reaching.
For realizing the foregoing invention purpose, the present invention adopts following technological scheme:
A kind of design method of selfaligning roller bearing split type retainer, it increases the retainer external diameter on the basis of existing pair of pawl integrative-structure solid cage, and retainer outside dimension Dc is greater than outer ring internal diameter size D1; In the middle of retainer, radially cut open into two, be respectively left side and right-hand part, axially cut open into two along retainer left side and right-hand part again from center, pocket hole; With the retainer right-hand part clockwise or be rotated counterclockwise 90 ° of axial cut that stagger, make the center in pocket hole of centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole; With above-mentioned retainer radially, four parts that form of axial subdivision pack between the inner ring and outer ring of bearing, spin out from outer ring raceway with inner ring again, utilize several socket head screws, spring pin to be joined together to form an integral body.
The design method of described selfaligning roller bearing split type retainer; When the one-sided pocket of retainer hole number Z can be divided exactly by 4; Retainer left side and right-hand part along the pocket hole central shaft cut open to symmetry, cut 180 ° of location intervals open, the retainer right-hand part clockwise or be rotated counterclockwise 90 ° ± (180 °/Z); Make the center in pocket hole of centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole.
The design method of described selfaligning roller bearing split type retainer; When remainder is 1 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side and right-hand part along the pocket hole central shaft to cutting open, cut open 180 ° of location intervals ± (180 °/Z), the retainer right-hand part clockwise or be rotated counterclockwise 90 °+(90 °/Z); Make the center in pocket hole of centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole.
The design method of described selfaligning roller bearing split type retainer; When remainder is 2 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side and right-hand part along the pocket hole central shaft 180 ° of location intervals to cutting open, the retainer right-hand part is clockwise or be rotated counterclockwise 90 °; Make the center in pocket hole of centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole.
The design method of described selfaligning roller bearing split type retainer; When remainder is 3 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side and right-hand part along the pocket hole central shaft to cutting open, cut open 180 ° of location intervals ± (180 °/Z), the retainer right-hand part clockwise or be rotated counterclockwise 90 °-(90 °/Z); Make the center in pocket hole of centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole.
A kind of selfaligning roller bearing split type retainer, its retainer increases at the basic top external diameter of existing pair of pawl integrative-structure solid cage, and retainer outside dimension Dc is greater than outer ring internal diameter size D1; Retainer radially cut dissects into left side and right-hand part, and the left side of retainer and right-hand part center, pocket hole are vertically cut open, all joins on the left side of retainer and the right-hand part to be drilled with attachment hole; Above-mentioned retainer radially, four parts that form of axial subdivision pass attachment hole and link together through several socket head screws, spring pin.
In the described selfaligning roller bearing split type retainer; The one-sided pocket of its retainer hole number Z can be divided exactly by 4; Retainer left side and right-hand part along the pocket hole central shaft cut open to symmetry, cut 180 ° of location intervals open, the retainer right-hand part clockwise or be rotated counterclockwise 90 ° ± (180 °/Z); During the center in the pocket hole of the centrally aligned retainer left side of the beam of retainer right-hand part, join the brill attachment hole.
In the described selfaligning roller bearing split type retainer; It is 1 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side and right-hand part along the pocket hole central shaft to cutting open, cut open 180 ° of location intervals ± (180 °/Z), the retainer right-hand part clockwise or be rotated counterclockwise 90 °+(90 °/Z); When making the center in pocket hole of centrally aligned retainer left side of beam of retainer right-hand part, join the brill attachment hole.
In the described selfaligning roller bearing split type retainer; It is 2 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side and right-hand part along the pocket hole central shaft 180 ° of location intervals to cutting open, at the retainer right-hand part clockwise or be rotated counterclockwise 90 °; When making the center in pocket hole of centrally aligned retainer left side of beam of retainer right-hand part, join the brill attachment hole.
In the described selfaligning roller bearing split type retainer; It is 3 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side and right-hand part along the pocket hole central shaft to cutting open, cut open 180 ° of location intervals ± (180 °/Z), the retainer right-hand part clockwise or be rotated counterclockwise 90 °-(90 °/Z); When making the center in pocket hole of centrally aligned retainer left side of beam of retainer right-hand part, join the brill attachment hole.
Because adopt aforesaid technological scheme, the present invention has following superiority:
This selfaligning roller bearing split type retainer and design method thereof, it is simple in structure, and novelty reasonable in design is skillfully constructed, and can effectively solve the assembly problem after the retainer external diameter increases; The retainer external diameter increases, and can increase the thickness and the intensity of retainer; Because pocket hole bottom centre position and retainer external diameter be apart from increase, retainer pocket hole adds the man-hour bit central can accurately feel relieved, and has improved the machining accuracy in pocket hole and the run stability of bearing; When guaranteeing retainer thickness and intensity, the retainer internal diameter also can increase, and makes the inner ring middle part can leave fixedly guide ring or movable guide ring, improves the axial carrying capacity of bearing; And roller length also can suitably increase, and the radially bearing capacity of bearing is improved; Bearing working life, run stability, reliability are improved significantly.
Description of drawings
Fig. 1 is the structural representation of selfaligning roller bearing in the existing technology;
Fig. 2 is the structural representation that is equipped with the selfaligning roller bearing of split type retainer of the present invention;
Fig. 3 is the structural representation of selfaligning roller bearing split type retainer of the present invention;
Fig. 4 is the structural representation of the left side of selfaligning roller bearing split type retainer of the present invention;
Fig. 5 is the structural representation of the right-hand part of selfaligning roller bearing split type retainer of the present invention;
Fig. 6 is that Fig. 4 " C-C " is to sectional view;
Fig. 7 is the right elevation of Fig. 4;
Fig. 8 is the left view of Fig. 5;
Among the figure: the 1-outer ring; The 2-rolling element; The 3-retainer; The 4-inner ring; The 5-left side; The 6-right-hand part; The 7-socket head screw; The 8-spring pin; The 9-beam; 10-pocket hole; The 11-pin-and-hole; The 12-tapped hole; The 13-counterbore; 14-is cut radially; The axial cut of 15-.
Embodiment
Below through accompanying drawing and combine embodiment that technological scheme of the present invention is done further explain.
Like Fig. 2,3,4,5,6,7, shown in 8, this selfaligning roller bearing split type retainer, its retainer increases at the basic top external diameter of existing pair of pawl integrative-structure solid cage, and retainer 3 outside dimension Dc are greater than outer ring 1 internal diameter size D1; The retainer that will process according to overall structure along its radially cut 14 dissect into left side 5 and right-hand part 6; Be processed with step and seam between left side and the right-hand part; Accurately locate when being used to connect, the back-to-back placement of the left side of retainer and right-hand part, consistent about the pocket hole site; And then cut open along the axial cut 15 axial symmetries at center, retainer pocket hole; Axially cut 15 is that " A-A " among Fig. 7,8 locates, make retainer radially, axial subdivision forms four parts, all join on the left side of retainer and the right-hand part to be drilled with attachment hole; Attachment hole is positioned at Off center position, retainer pocket hole bottom, and attachment hole is made up of several counterbores 13 and tapped hole 12 and pin-and-hole 11; Four above-mentioned parts are passed attachment hole and are linked together through several socket head screws 7, spring pin 8.
In the selfaligning roller bearing split type retainer of the present invention, the one-sided pocket of retainer hole number Z is different, retainer left side and right-hand part along the pocket hole central shaft different to cutting the position open, through following examples this is elaborated.
Embodiment one
The one-sided pocket of retainer hole number Z is an even number; Can be divided exactly but can not be divided exactly by 4 by 2, promptly being removed the back remainder by 4 is 2 o'clock, and retainer right-hand part 6 clockwise or be rotated counterclockwise 90 °; Axial cut 15 staggers; Make the center in pocket hole 10 of centrally aligned retainer left side 5 of the beam 9 of retainer right-hand part 6, retainer left side 5, right-hand part 6 are fixedly clamped, join the brill attachment hole.Attachment hole is positioned at Off center position, bottom, retainer pocket hole; Attachment hole is made up of 8 counterbores 13 and 12,4 pin-and-holes 11 of tapped hole at least; Wherein, 8 tapped holes 12 and 8 counterbores 13 match and bore and connect with 8 socket head screws 7, the 8 pairs of attachment holes be positioned at axial cut 15 neighbouring and stagger after connection place again, 8 counterbores 13 are positioned on the retainer right-hand part 6; 8 tapped holes 12 are positioned on the retainer left side 5; The counterbore degree of depth should guarantee that socket head screw 7 is connected the back screw head with left side 5 and must not gives prominence to pocket hole lower surface with right-hand part 6, and at least 4 pin-and-holes 11 are also joined and bored and with spring pin 8 connections, stem knob must not be given prominence to pocket hole lower surface on left side 5 or the right-hand part 6.After processing attachment hole by said process, supporting mark on corresponding position is done on the retainer.Take four parts of retainer apart; This four part is packed in the middle of the inner ring between inner ring 4, outer ring 1 raceway on the rib; After retainer left side 5, right-hand part 6 usefulness steps and seam fix the position; 1 raceway spins out from the outer ring together with inner ring 4 again, according to original ready-made supporting mark, links up with spring pin 8 and socket head screw 7; In rolling element 2 pack into inner ring raceway and retainer pocket hole 10 from inner ring 4 little ribs more at last, rotate into and get final product in 1 raceway of outer ring.
Embodiment two
When the one-sided pocket of retainer hole number can be divided exactly by 4; Retainer left side 5 and right-hand part 6 along the pocket hole central shaft cut open to symmetry; With the retainer right-hand part clockwise or be rotated counterclockwise 90 ° ± (180 °/Z); The axial cut 15 that staggers makes the center in pocket hole 10 of centrally aligned retainer left side 5 of the beam 9 of retainer right-hand part 6, joins the brill attachment hole.All the other installation processes are with embodiment one.
Embodiment three
The one-sided pocket of retainer hole number Z is an odd number; Can be removed the back remainder by 4 is 1 o'clock, and retainer left side 5 is axially cut open along center, pocket hole with right-hand part 6, cut open 180 ° of location intervals ± (180 °/Z); The retainer right-hand part clockwise or be rotated counterclockwise 90 °+(90 °/Z); The axial cut 15 that staggers makes the center in pocket hole 10 of centrally aligned retainer left side 5 of the beam 9 of retainer right-hand part 6, joins the brill attachment hole.All the other installation processes are with embodiment one.
Embodiment four
The one-sided pocket of retainer hole number Z is an odd number; Can be removed the back remainder by 4 is 3 o'clock, retainer left side 5 and right-hand part 6 along the pocket hole central shaft to cutting open, cut open 180 ° of location intervals ± (180 °/Z); The retainer right-hand part clockwise or be rotated counterclockwise 90 °-(90 °/Z); The axial cut 15 that staggers makes the center in pocket hole 10 of centrally aligned retainer left side 5 of the beam 9 of retainer right-hand part 6, joins the brill attachment hole.
Claims (10)
1. the design method of a selfaligning roller bearing split type retainer is characterized in that: it increases the retainer external diameter on the basis of existing pair of pawl integrative-structure solid cage, retainer (3) outside dimension Dc is greater than outer ring (1) internal diameter size D1; In the middle of retainer, radially cut open into two, be respectively left side (5) and right-hand part (6), axially cut open into two along retainer left side and right-hand part again from center, pocket hole; With the retainer right-hand part clockwise or be rotated counterclockwise 90 ° of axial cut (15) that stagger, make the center in pocket hole (10) of centrally aligned retainer left side of the beam (9) of retainer right-hand part, join the brill attachment hole; With above-mentioned retainer radially, four parts that form of axial subdivision pack between the inner ring (4) and outer ring of bearing, spin out from outer ring raceway with inner ring again, utilize several socket head screws (7), spring pin (8) to be joined together to form an integral body.
2. the design method of selfaligning roller bearing split type retainer according to claim 1; The one-sided pocket of retainer hole number Z it is characterized in that: when can be divided exactly by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft cut open to symmetry, cut 180 ° of location intervals open, the retainer right-hand part clockwise or be rotated counterclockwise 90 ° ± (180 °/Z); Make the center in pocket hole (10) of centrally aligned retainer left side of the beam (9) of retainer right-hand part, join the brill attachment hole.
3. the design method of selfaligning roller bearing split type retainer according to claim 1; It is characterized in that: when remainder is 1 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft to cutting open; Cut open 180 ° of location intervals ± (180 °/Z); The retainer right-hand part clockwise or be rotated counterclockwise 90 °+(90 °/Z), make the center in pocket hole (10) of centrally aligned retainer left side of the beam (9) of retainer right-hand part are joined the brill attachment hole.
4. the design method of selfaligning roller bearing split type retainer according to claim 1; It is characterized in that: when remainder is 2 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft 180 ° of location intervals to cutting open, the retainer right-hand part is clockwise or be rotated counterclockwise 90 °; Make the center in pocket hole (10) of centrally aligned retainer left side of the beam (9) of retainer right-hand part, join the brill attachment hole.
5. the design method of selfaligning roller bearing split type retainer according to claim 1; It is characterized in that: when remainder is 3 after the one-sided pocket of retainer hole number Z can be removed by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft to cutting open; Cut open 180 ° of location intervals ± (180 °/Z); The retainer right-hand part clockwise or be rotated counterclockwise 90 °-(90 °/Z), make the center in pocket hole (10) of centrally aligned retainer left side of the beam (9) of retainer right-hand part are joined the brill attachment hole.
6. selfaligning roller bearing split type retainer is characterized in that: its retainer increases at the basic top external diameter of existing pair of pawl integrative-structure solid cage, and retainer (3) outside dimension Dc is greater than outer ring (1) internal diameter size D1; Retainer radially cut (14) dissects into left side (5) and right-hand part (6), and the left side of retainer and right-hand part center, pocket hole are vertically cut open, all join on the left side of retainer and the right-hand part to be drilled with attachment hole; Above-mentioned retainer radially, four parts that form of axial subdivision pass attachment hole and link together through several socket head screws (7), spring pin (8).
7. selfaligning roller bearing split type retainer according to claim 6; It is characterized in that: the one-sided pocket of its retainer hole number Z can be divided exactly by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft cut open to symmetry, cut 180 ° of location intervals open, the retainer right-hand part clockwise or be rotated counterclockwise 90 ° ± (180 °/Z); During the center in the pocket hole (10) of the centrally aligned retainer left side of the beam of retainer right-hand part (9), join the brill attachment hole.
8. selfaligning roller bearing split type retainer according to claim 6; It is characterized in that: it is 1 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft to cutting open; Cut open 180 ° of location intervals ± (180 °/Z); At the retainer right-hand part clockwise or be rotated counterclockwise 90 °+(90 °/Z), when making the center in pocket hole (10) of centrally aligned retainer left side of beam (9) of retainer right-hand part, join the brill attachment hole.
9. selfaligning roller bearing split type retainer according to claim 6; It is characterized in that: it is 2 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft 180 ° of location intervals to cutting open, at the retainer right-hand part clockwise or be rotated counterclockwise 90 °; When making the center in pocket hole (10) of centrally aligned retainer left side of beam (9) of retainer right-hand part, join the brill attachment hole.
10. selfaligning roller bearing split type retainer according to claim 6; It is characterized in that: it is 3 o'clock that the one-sided pocket of its retainer hole number Z can be removed the back remainder by 4; Retainer left side (5) and right-hand part (6) along the pocket hole central shaft to cutting open; Cut open 180 ° of location intervals ± (180 °/Z); At the retainer right-hand part clockwise or be rotated counterclockwise 90 °-(90 °/Z), when making the center in pocket hole (10) of centrally aligned retainer left side of beam (9) of retainer right-hand part, join the brill attachment hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103502383A CN102506075A (en) | 2011-11-08 | 2011-11-08 | Self-aligning roller bearing split-type retainer and design method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103502383A CN102506075A (en) | 2011-11-08 | 2011-11-08 | Self-aligning roller bearing split-type retainer and design method thereof |
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| CN102506075A true CN102506075A (en) | 2012-06-20 |
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| CN2011103502383A Pending CN102506075A (en) | 2011-11-08 | 2011-11-08 | Self-aligning roller bearing split-type retainer and design method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629245A (en) * | 2012-08-22 | 2014-03-12 | 谢夫勒科技股份两合公司 | Self-aligning roller bearing provided with sealed structure |
| CN103742530A (en) * | 2013-12-28 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Special split self-aligning roller bearing for mixer truck |
| CN105864298A (en) * | 2016-06-21 | 2016-08-17 | 中航工业哈尔滨轴承有限公司 | Design method of stamping retainer for annular ball bearing |
| CN107939832A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | High-wearing feature self-aligning roller bearing |
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| JP2002188628A (en) * | 2000-12-20 | 2002-07-05 | Nsk Ltd | Automatic aligning roller bearing device |
| CN2611668Y (en) * | 2003-04-30 | 2004-04-14 | 洛阳轴承集团有限公司 | Super large split bearing |
| CN201125943Y (en) * | 2007-11-28 | 2008-10-01 | 瓦房店轴承集团有限责任公司 | Split type aligning roller bearing |
| JP2009180307A (en) * | 2008-01-31 | 2009-08-13 | Jtekt Corp | Self-aligning roller bearing |
| CN202391973U (en) * | 2011-11-08 | 2012-08-22 | 洛阳瑞成轴承有限责任公司 | Split type cage for self-aligning roller bearings |
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- 2011-11-08 CN CN2011103502383A patent/CN102506075A/en active Pending
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| JP2001208076A (en) * | 2000-01-24 | 2001-08-03 | Nsk Ltd | Roller bearing |
| JP2002188628A (en) * | 2000-12-20 | 2002-07-05 | Nsk Ltd | Automatic aligning roller bearing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629245A (en) * | 2012-08-22 | 2014-03-12 | 谢夫勒科技股份两合公司 | Self-aligning roller bearing provided with sealed structure |
| CN103629245B (en) * | 2012-08-22 | 2017-10-03 | 舍弗勒技术股份两合公司 | A kind of self-aligning roller bearing with sealing structure |
| CN103742530A (en) * | 2013-12-28 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Special split self-aligning roller bearing for mixer truck |
| CN105864298A (en) * | 2016-06-21 | 2016-08-17 | 中航工业哈尔滨轴承有限公司 | Design method of stamping retainer for annular ball bearing |
| CN105864298B (en) * | 2016-06-21 | 2018-02-27 | 中航工业哈尔滨轴承有限公司 | A kind of design method of the pressing cage of radial ball bearing |
| CN107939832A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | High-wearing feature self-aligning roller bearing |
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Application publication date: 20120620 |