CN204784206U - Bearing - Google Patents
Bearing Download PDFInfo
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- CN204784206U CN204784206U CN201520346309.6U CN201520346309U CN204784206U CN 204784206 U CN204784206 U CN 204784206U CN 201520346309 U CN201520346309 U CN 201520346309U CN 204784206 U CN204784206 U CN 204784206U
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- needle
- cages
- needle roller
- groove
- adjacent
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Abstract
The utility model belongs to the technical field of auto -parts, especially, relate to a bearing. It has solved current bearing lubrication degree subalternation technical problem. Including bearing inner race and the bearing inner race who all is tube -shape and all concentric settings, be equipped with the needle roller cage body between bearing inner race and the bearing inner race, needle roller cage body circumference is equipped with a plurality of holding groove, be equipped with at least two kingpins body in each holding groove, the kingpin body is cylindric and equal axial setting in holding groove, adjacent two kingpins body supports by setting up each other, and be equipped with lubricating structure between adjacent two kingpins body, the arc amalgamation that the needle roller cage body was just made by the rigid material by at least two circumference distributions forms, and link to each other through mosaic structure between two adjacent arcs. The utility model has the advantages of: installation stability is good, holder adoption amalgamation formula structure, and the handling ease, the kingpin rotates smoothly, and difficult the appearance is worn and torn, and kingpin lubrication degree is good.
Description
Technical field
The utility model belongs to technical field of automobile, particularly relates to a kind of needle bearing.
Background technique
Needle bearing is the roller bearing of band cylindrical roller, its diameter relatively, there is less cross section, bearing still has higher load-taking capacity, needle bearing is equipped with thin and long roller, and therefore radial structure is compact, when its internal diameter size is identical with other types of bearings with load-carrying ability, external diameter is minimum, is specially adapted to the restricted supporting structure of radial installation dimension.Needle bearing mainly comprises Internal and external cycle, between Internal and external cycle, be provided with the retainer being provided with needle roller, the major function of retainer is used to be separated each rolling element, reduces rolling element phase mutual friction and keeps the stability of rolling element, keep rolling element spacing equal, make load mean allocation.Existing needle bearing also exists: needle roller installs poor stability, and lubricity is inadequate, and needle roller rotates smooth and easy not, easily occurs wearing and tearing, the problems such as retainer difficulty of processing is large.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of needle bearing [application number: 201310427068.3], comprise: bearing body, described bearing body is provided with outer ring, inner ring, needle roller and cages for needle, connect described inner ring inside described cages for needle, outside described cages for needle, connect described outer ring, described cages for needle offers perforate, described needle roller is positioned in described perforate by interference fit, is provided with a protective coating between described outer ring and described cages for needle.
Above-mentioned scheme improves the subproblem of prior art to a certain extent, but the program also at least exists following defect: needle roller installs poor stability, and lubricity is inadequate, and easily occur wearing and tearing, retainer difficulty of processing is large.
Summary of the invention
The purpose of this utility model is for the problems referred to above, and provide a kind of design more reasonable, retainer is convenient to the needle bearing processed.
For achieving the above object, the utility model have employed following technical proposal: this needle bearing, comprise the bearing outer ring and bearing inner race that arrange all in tubular and all with one heart, cages for needle body is provided with between described bearing outer ring and bearing inner race, described cages for needle body is circumferentially with some along the axially extended retention groove of cages for needle body, it is characterized in that, at least two needle roller bodies are provided with all successively side by side in each retention groove, described needle roller body cylindrically and be all axially disposed within retention groove, adjacent two needle roller bodies are mutually against setting, and be provided with lubricating structure between adjacent two needle roller bodies, described cages for needle body is distributed by least two circumferences and the arc plate be made up of rigid material is put together, and be connected by splicing construction between adjacent two arc plates.Namely cages for needle body adopts two-piece construction, is convenient to processing like this, and is provided with at least two needle roller bodies in each retention groove and lubricating structure can reduce wearing and tearing between needle roller body.
In above-mentioned needle bearing, described splicing construction comprises and is arranged on arc plate side and the arcuately axially extended draw-in groove of plate, and the width of rebate of described draw-in groove to slot bottom width becomes large gradually, described arc plate opposite side has arcuately plate and axially extends and the positioning convex strip matched with the draw-in groove on an adjacent arc plate, and adjacent two arc plates are connected by the mutual clamping of positioning convex strip and draw-in groove.Namely make arc plate piece together cages for needle body by positioning convex strip and the mutual grafting of draw-in groove, and preferably, the quantity of arc plate is here two and corresponding setting mutually.
In above-mentioned needle bearing, described positioning convex strip and arc plate are connected as a single entity structure, and described positioning convex strip is in the trapezium structure with short parallel edges and long parallel edges.
In above-mentioned needle bearing, the cross section of described positioning convex strip is isosceles trapezoid, and the length of the short parallel edges of described positioning convex strip, short parallel edges to the ratio between the length of long parallel edges and the length of long parallel edges are: 1:0.5-1:2-3; Or the cross section of described positioning convex strip is at right angles trapezoidal, and the length of the short parallel edges of described positioning convex strip, short parallel edges to the ratio between the length of long parallel edges and the length of long parallel edges are: 1:0.5-1:1.5-2.
In above-mentioned needle bearing, described cages for needle body week is provided with some convex tendons be connected as a single entity with cages for needle body to the inside, is formed with retention groove one_to_one corresponding and the bar-shaped trough be interconnected between adjacent two convex tendons.
In above-mentioned needle bearing, described cages for needle end of body is provided with annular end cap, and described annular end cap is connected with cages for needle body by plug in structure; Described plug in structure comprises by the axial cutting graftage part formed that stretches out of positioning convex strip, and described annular end cap has the spliced eye corresponding with cutting graftage part, and described cutting graftage part inserts in spliced eye and end, cutting graftage part and flushes with outside spliced eye.Annular end cap can play a protective role to cages for needle end of body.
In above-mentioned needle bearing, described lubricating structure comprise be axially disposed within needle roller body and cross section in the non-circular through hole with at least two lug bosses, some annular grooves are provided with in needle roller body outer circumferential, described annular groove along needle roller body axially successively distribution and annular groove on adjacent two needle roller bodies be crisscross arranged one by one, described annular groove circumference has at least one oilhole be connected near lug boss side and with through hole.Namely there is the through hole for placing lubricant oil in needle roller body, when needle roller body circumference is rotated, lubricant oil enters annular groove by oilhole, be convenient to the lubrication of needle roller body like this, prevent from occurring wearing and tearing between needle roller body, and the cross section of through hole in there are at least two lug bosses non-circular needle roller body circumference is rotated time lubricant oil be more prone to flow out.
In above-mentioned needle bearing, the needle roller body quantity in each retention groove is two and arranged in parallel, described needle roller body two ends respectively with retention groove end against to arrange and needle roller body is arranged for center of circle circumference distributes with the center line of cages for needle body.
In above-mentioned needle bearing, the cross section of described through hole is in the ellipse with two curved ends, described curved end forms above-mentioned lug boss, oilhole quantity on each annular groove is two, and described oilhole is separately positioned on annular groove circumference near the side of curved end; Or, the cross section of described through hole is in the polygonal with at least three bights, described bight forms above-mentioned lug boss, and the oilhole quantity on each annular groove is at least three, and described oilhole is separately positioned on the side of annular groove circumference near bight.When through hole ovalize, the oilhole on annular groove is two and is separately positioned on the two ends of oval through hole; When through hole is polygonal, the oilhole on annular groove is at least three and is separately positioned on each angle of polygonal through hole.
In above-mentioned needle bearing, be provided with in described cages for needle body week some between adjacent two retention grooves and the guiding gutter that adjacent two retention grooves can be connected to the inside, and each guiding gutter is in a discrete distribution along helix; The projection of each guiding gutter on cages for needle body cross section is all positioned at circumferentially same and is uniformly distributed in a circumferential direction.Retention groove can be interconnected by each guiding gutter, is convenient to the flowing of lubricant oil like this, makes needle roller body lubricity good.
Compared with prior art, the advantage of this needle bearing is: design is more reasonable, and structure is simple, installs good stability, and retainer adopts two-piece construction, is convenient to processing, and needle roller rotates smooth and easy, and not easily occur wearing and tearing, needle roller lubricity is good.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment one that the utility model provides.
Fig. 2 is the structural representation of the cages for needle body of the embodiment one that the utility model provides.
Fig. 3 is the sectional view of the cages for needle body of the embodiment one that the utility model provides.
Fig. 4 is the structural representation of the lubricating structure of the embodiment one that the utility model provides.
Fig. 5 is the sectional view of the cages for needle body of the embodiment two that the utility model provides.
Fig. 6 is the structural representation of the lubricating structure of the embodiment three that the utility model provides.
In figure, bearing outer ring 1, bearing inner race 2, cages for needle body 3, arc plate 31, draw-in groove 311, positioning convex strip 312, short parallel edges 313, long parallel edges 314, convex tendon 32, bar-shaped trough 33, annular end cap 34, cutting graftage part 341, spliced eye 342, retention groove 4, needle roller body 5, lubricating structure 6, through hole 61, curved end 611, bight 612, annular groove 62, oilhole 63, guiding gutter 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Embodiment one
As Figure 1-4, this needle bearing, comprise the bearing outer ring 1 and bearing inner race 2 that arrange all in tubular and all with one heart, cages for needle body 3 is provided with between bearing outer ring 1 and bearing inner race 2, cages for needle body 3 is circumferentially with some along the axially extended retention groove 4 of cages for needle body 3, at least two needle roller bodies 5 are provided with all successively side by side in each retention groove 4, needle roller body 5 cylindrically and be all axially disposed within retention groove 4, adjacent two needle roller bodies 5 are mutually against setting, and be provided with lubricating structure 6 between adjacent two needle roller bodies 5, cages for needle body 3 is distributed by least two circumferences and the arc plate 31 be made up of rigid material is put together, and be connected by splicing construction between adjacent two arc plates 31, namely cages for needle body 3 adopts two-piece construction, be convenient to processing like this, and be provided with at least two needle roller bodies 5 in each retention groove 4 and lubricating structure 6 can reduce wearing and tearing between needle roller body 5.
Particularly, splicing construction in the present embodiment comprises and is arranged on arc plate 31 side and the arcuately axially extended draw-in groove 311 of plate 31, and the width of rebate of draw-in groove 311 to slot bottom width becomes large gradually, arc plate 31 opposite side has arcuately plate 31 and axially extends and the positioning convex strip 312 matched with the draw-in groove 311 on an adjacent arc plate 31, adjacent two arc plates 31 are connected by the mutual clamping of positioning convex strip 312 and draw-in groove 311, namely arc plate 31 is made to piece together cages for needle body 3 by the mutual grafting of positioning convex strip 312 and draw-in groove 311, and preferably, the quantity of arc plate 31 is here two and corresponding setting mutually.Wherein, here positioning convex strip 312 is connected as a single entity structure with arc plate 31, and positioning convex strip 312 is in having the isosceles trapezoid of short parallel edges 313 with long parallel edges 314, and the length of the short parallel edges 313 of positioning convex strip 312, short parallel edges 313 to the ratio between the length of long parallel edges 314 and the length of long parallel edges 314 are: 1:0.5-1:2-3.
Further, the cages for needle body in the present embodiment is provided with some convex tendons 32 be connected as a single entity with cages for needle body 3 for 3 weeks to the inside, is formed with retention groove 4 one_to_one corresponding and the bar-shaped trough 33 be interconnected between adjacent two convex tendons 32.In order to play a protective role to cages for needle body 3 end during use, cages for needle body 3 end is provided with annular end cap 34, and annular end cap 34 is connected with cages for needle body 3 by plug in structure; Plug in structure comprises by the axial cutting graftage part 341 formed that stretches out of positioning convex strip 312, annular end cap 34 has the spliced eye 342 corresponding with cutting graftage part 341, and cutting graftage part 341 inserts in spliced eye 342 and end, cutting graftage part 341 and flushes with outside spliced eye 342.
Lubricating structure 6 in the present embodiment comprise be axially disposed within needle roller body 5 and cross section in the non-circular through hole 61 with at least two lug bosses, some annular grooves 62 are provided with in needle roller body 5 outer circumferential, along needle roller body 5, axially distribution and annular groove 62 on adjacent two needle roller bodies 5 are crisscross arranged annular groove 62 one by one successively, annular groove 62 circumference has at least one oilhole 63 be connected near lug boss side and with through hole 61, namely there is the through hole 61 for placing lubricant oil in needle roller body 5, when needle roller body 5 circumference is rotated, lubricant oil enters annular groove 62 by oilhole 63, be convenient to the lubrication of needle roller body 5 like this, prevent from occurring wearing and tearing between needle roller body 5, and the cross section of through hole 61 in there are at least two lug bosses non-circular needle roller body 5 circumference is rotated time lubricant oil be more prone to flow out.The cross section of the through hole 61 in the present embodiment is in the ellipse with two curved ends 611, curved end 611 forms above-mentioned lug boss, oilhole 63 quantity on each annular groove 62 is two, and oilhole 63 is separately positioned on annular groove 62 circumference near the side of curved end 611, namely, when through hole 61 ovalize, the oilhole 63 on annular groove 62 is two and is separately positioned on the two ends of oval through hole 61.
Wherein, needle roller body 5 quantity in each retention groove 4 is two and arranged in parallel, needle roller body 5 two ends respectively with retention groove 4 end against to arrange and needle roller body 5 is arranged for center of circle circumference distributes with the center line of cages for needle body 3.In addition, cages for needle body is provided with some between adjacent two retention grooves 4 and the guiding gutter 7 that adjacent two retention grooves 4 can be connected for 3 weeks to the inside, and each guiding gutter 7 is in a discrete distribution along helix; The projection of each guiding gutter 7 on cages for needle body 3 cross section is all positioned at circumferentially same and is uniformly distributed in a circumferential direction, and retention groove 4 can be interconnected by each guiding gutter 7, is convenient to the flowing of lubricant oil like this, makes needle roller body 5 lubricity good.
Embodiment two
As shown in Figure 5, the structure of the present embodiment, principle and implementation step and embodiment one similar, different place is, the cross section of the positioning convex strip 312 in the present embodiment is at right angles trapezoidal, and the length of the short parallel edges 313 of positioning convex strip 312, short parallel edges 313 to the ratio between the length of long parallel edges 314 and the length of long parallel edges 314 are: 1:0.5-1:1.5-2.
Embodiment three
As shown in Figure 6, the structure of the present embodiment, principle and implementation step and embodiment one similar, different place is, the cross section of the through hole 61 in the present embodiment is in the polygonal with at least three bights 612, described bight 612 forms above-mentioned lug boss, oilhole 63 quantity on each annular groove 62 is at least three, and described oilhole 63 is separately positioned on the side of annular groove 62 circumference near bight 612, when through hole 61 is in polygonal, the oilhole 63 on annular groove is at least three and is separately positioned on each angle of polygonal through hole 61.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as bearing outer ring 1, bearing inner race 2, cages for needle body 3, arc plate 31, draw-in groove 311, positioning convex strip 312, short parallel edges 313, long parallel edges 314, convex tendon 32, bar-shaped trough 33, annular end cap 34, cutting graftage part 341, spliced eye 342, retention groove 4, needle roller body 5, lubricating structure 6, through hole 61, curved end 611, bight 612, annular groove 62, oilhole 63, guiding gutter 7 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (10)
1. a needle bearing, comprise the bearing outer ring (1) and bearing inner race (2) that arrange all in tubular and all with one heart, cages for needle body (3) is provided with between described bearing outer ring (1) and bearing inner race (2), described cages for needle body (3) is circumferentially with some along cages for needle body (3) axially extended retention groove (4), it is characterized in that, at least two needle roller bodies (5) are provided with all successively side by side in each retention groove (4), described needle roller body (5) cylindrically and be all axially disposed within retention groove (4), adjacent two needle roller bodies (5) are mutually against setting, and be provided with lubricating structure (6) between adjacent two needle roller bodies (5), described cages for needle body (3) is distributed by least two circumferences and the arc plate (31) be made up of rigid material is put together, and be connected by splicing construction between adjacent two arc plates (31).
2. needle bearing according to claim 1, it is characterized in that, described splicing construction comprises and is arranged on arc plate (31) side and arcuately plate (31) axially extended draw-in groove (311), and the width of rebate of described draw-in groove (311) to slot bottom width becomes large gradually, described arc plate (31) opposite side has arcuately plate (31) and axially extends and the positioning convex strip (312) matched with the draw-in groove (311) on an adjacent arc plate (31), adjacent two arc plates (31) are connected by the mutual clamping of positioning convex strip (312) and draw-in groove (311).
3. needle bearing according to claim 2, it is characterized in that, described positioning convex strip (312) and arc plate (31) are connected as a single entity structure, and described positioning convex strip (312) is in having the trapezium structure of short parallel edges (313) with long parallel edges (314).
4. needle bearing according to claim 3, it is characterized in that, the cross section of described positioning convex strip (312) is isosceles trapezoid, and the length of the short parallel edges (313) of described positioning convex strip (312), short parallel edges (313) to the ratio between the length of long parallel edges (314) and the length of long parallel edges (314) are: 1:(0.5-1): (2-3); Or, the cross section of described positioning convex strip (312) is at right angles trapezoidal, and the length of the short parallel edges (313) of described positioning convex strip (312), short parallel edges (313) to the ratio between the length of long parallel edges (314) and the length of long parallel edges (314) are: 1:(0.5-1): (1.5-2).
5. the needle bearing according to Claims 2 or 3 or 4, it is characterized in that, be provided with some convex tendons (32) be connected as a single entity with cages for needle body (3) described cages for needle body (3) week to the inside, formed between adjacent two convex tendons (32) with retention groove (4) one_to_one corresponding and the bar-shaped trough be interconnected (33).
6. needle bearing according to claim 5, it is characterized in that, described cages for needle body (3) end is provided with annular end cap (34), and described annular end cap (34) is connected with cages for needle body (3) by plug in structure; Described plug in structure comprises by the axial cutting graftage part (341) formed that stretches out of positioning convex strip (312), described annular end cap (34) has the spliced eye (342) corresponding with cutting graftage part (341), and described cutting graftage part (341) inserts in spliced eye (342) and cutting graftage part (341) end and flushes with spliced eye (342) outside.
7. the needle bearing according to claim 1 or 2 or 3 or 4, it is characterized in that, described lubricating structure (6) comprise be axially disposed within needle roller body (5) and cross section in the non-circular through hole (61) with at least two lug bosses, some annular grooves (62) are provided with in needle roller body (5) outer circumferential, along needle roller body (5), axially distribution and annular groove (62) on adjacent two needle roller bodies (5) are crisscross arranged described annular groove (62) one by one successively, described annular groove (62) circumference has at least one oilhole (63) be connected near lug boss side and with through hole (61).
8. needle bearing according to claim 7, it is characterized in that, needle roller body (5) quantity in each retention groove (4) is two and arranged in parallel, described needle roller body (5) two ends respectively with retention groove (4) end against to arrange and needle roller body (5) is that center of circle circumference distributes and arranges with the center line of cages for needle body (3).
9. needle bearing according to claim 7, it is characterized in that, the cross section of described through hole (61) is in the ellipse with two curved ends (611), described curved end (611) forms above-mentioned lug boss, oilhole (63) quantity on each annular groove (62) is two, and described oilhole (63) is separately positioned on annular groove (62) circumference near the side of curved end (611); Or, the cross section of described through hole (61) is in the polygonal with at least three bights (612), described bight (612) forms above-mentioned lug boss, oilhole (63) quantity on each annular groove (62) is at least three, and described oilhole (63) is separately positioned on the side of annular groove (62) circumference near bight (612).
10. needle bearing according to claim 9, it is characterized in that, be provided with some being positioned between adjacent two retention grooves (4) and the guiding gutter (7) that adjacent two retention grooves (4) can be connected described cages for needle body (3) week to the inside, and each guiding gutter (7) is in a discrete distribution along helix; The projection of each guiding gutter (7) on cages for needle body (3) cross section is all positioned at circumferentially same and is uniformly distributed in a circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346309.6U CN204784206U (en) | 2015-05-26 | 2015-05-26 | Bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346309.6U CN204784206U (en) | 2015-05-26 | 2015-05-26 | Bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784206U true CN204784206U (en) | 2015-11-18 |
Family
ID=54524261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520346309.6U Expired - Fee Related CN204784206U (en) | 2015-05-26 | 2015-05-26 | Bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895931A (en) * | 2015-05-26 | 2015-09-09 | 德清恒富机械有限公司 | Needle roller bearing |
-
2015
- 2015-05-26 CN CN201520346309.6U patent/CN204784206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895931A (en) * | 2015-05-26 | 2015-09-09 | 德清恒富机械有限公司 | Needle roller bearing |
| CN104895931B (en) * | 2015-05-26 | 2018-02-02 | 德清恒富机械有限公司 | needle bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160526 |