CN202391973U - Split type cage for self-aligning roller bearings - Google Patents
Split type cage for self-aligning roller bearings Download PDFInfo
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- CN202391973U CN202391973U CN2011204387655U CN201120438765U CN202391973U CN 202391973 U CN202391973 U CN 202391973U CN 2011204387655 U CN2011204387655 U CN 2011204387655U CN 201120438765 U CN201120438765 U CN 201120438765U CN 202391973 U CN202391973 U CN 202391973U
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- cage
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Abstract
The utility model discloses a split type cage for self-aligning roller bearings. On the basis of a conventional solid cage with a double-prong integrated structure, the outer diameter of the cage is enlarged, and the outer diameter Dc of the cage is greater than the inner diameter D1 of an outer race; the cage is radially split into a left half part and a right half part from the middle, and the left half part and the right half part of the cage are then axially split into two halves from the centers of pockets; the right half part of the cage is rotated clockwise or counterclockwise by 90 degrees to be staggered from the axial split, so that the center of a beam of the right half part of the cage is aimed at the centers of the pockets of the left half part of the cage, and connecting holes are drilled in a matching manner; and the four radially and axially split parts of the cage are mounted between an inner race and the outer race of a bearing, then rotated out from the raceway of the outer race along with the inner race and connected together by a plurality of socket head cap screws and spring pins to form a whole body. The split type cage has high strength and high reliability, and ensures that the bearing has high axial and radial bearing capability and operational stability.
Description
Technical field
The utility model belongs to technical field of bearings, especially relates to a kind of selfaligning roller bearing split type retainer.
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 the utility model provides a kind of selfaligning roller bearing split type retainer; 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 utility model adopts following technological scheme:
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.
Owing to adopt aforesaid technological scheme, the utlity model has following superiority:
This selfaligning roller bearing split type retainer, 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 the utility model split type retainer;
Fig. 3 is the structural representation of the utility model selfaligning roller bearing split type retainer;
Fig. 4 is the structural representation of the left side of the utility model selfaligning roller bearing split type retainer;
Fig. 5 is the structural representation of the right-hand part of the utility model selfaligning roller bearing split type retainer;
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 the technological scheme of the utility model 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 utility model, 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 (5)
1. 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).
2. selfaligning roller bearing split type retainer according to claim 1; 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.
3. selfaligning roller bearing split type retainer according to claim 1; 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.
4. selfaligning roller bearing split type retainer according to claim 1; 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.
5. selfaligning roller bearing split type retainer according to claim 1; 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204387655U CN202391973U (en) | 2011-11-08 | 2011-11-08 | Split type cage for self-aligning roller bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204387655U CN202391973U (en) | 2011-11-08 | 2011-11-08 | Split type cage for self-aligning roller bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391973U true CN202391973U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204387655U Expired - Fee Related CN202391973U (en) | 2011-11-08 | 2011-11-08 | Split type cage for self-aligning roller bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506075A (en) * | 2011-11-08 | 2012-06-20 | 洛阳瑞成轴承有限责任公司 | Self-aligning roller bearing split-type retainer and design method thereof |
| CN104500577A (en) * | 2014-12-26 | 2015-04-08 | 瓦房店轴承集团有限责任公司 | Rolling mill working roller thrust bearing |
-
2011
- 2011-11-08 CN CN2011204387655U patent/CN202391973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506075A (en) * | 2011-11-08 | 2012-06-20 | 洛阳瑞成轴承有限责任公司 | Self-aligning roller bearing split-type retainer and design method thereof |
| CN104500577A (en) * | 2014-12-26 | 2015-04-08 | 瓦房店轴承集团有限责任公司 | Rolling mill working roller thrust bearing |
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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: 20120822 Termination date: 20121108 |