CN211501318U - Planet needle bearing - Google Patents
Planet needle bearing Download PDFInfo
- Publication number
- CN211501318U CN211501318U CN201922084508.5U CN201922084508U CN211501318U CN 211501318 U CN211501318 U CN 211501318U CN 201922084508 U CN201922084508 U CN 201922084508U CN 211501318 U CN211501318 U CN 211501318U
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- inner sleeve
- annular groove
- needle bearing
- endotheca
- bearing
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Abstract
The utility model relates to a planet bearing, including endotheca, overcoat and the kingpin of setting between endotheca and overcoat, a plurality of annular groove have evenly been seted up to the endotheca outer wall, annular groove and the coaxial setting of endotheca. This planet bearing is through seting up annular groove outside the inner race, and at the interference fit in-process, annular groove can dodge like this, avoids cutting burr to produce to avoid planet bearing to burn to die in the use, improved life greatly.
Description
Technical Field
The utility model relates to a bearing technical field especially relates to a planet bearing.
Background
As shown in fig. 1, a conventional planetary needle bearing includes an inner sleeve 2 ', an outer sleeve 1', a cage 4 ', and needles 3'. The inner sleeve 2' is a straight cylinder type, the outer sleeve is removed firstly during assembly, the inner sleeve, the roller pins and the space ring are pressed into the planetary gear together, the roller pins are not allowed to scatter, then the planetary gear is arranged into the planet carrier, the planet shaft is used for directly ejecting out the middle inner sleeve, the roller pins are not allowed to scatter in the assembly process, the outer diameter of the inner sleeve is required to be larger than that of the planet shaft, the assembly of the planet shaft and the planet carrier is in transition fit, so that the gears of the inner sleeve and the planet carrier are in interference, burrs are generated when the inner sleeve is ejected out, and the planetary roller pin bearing is burnt out in the use process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve bearing life greatly, avoid appearing burning out the planet bearing of phenomenon in the use.
The utility model discloses a realize through following technical scheme: a planetary needle bearing comprises an inner sleeve, an outer sleeve and a needle roller arranged between the inner sleeve and the outer sleeve, wherein a plurality of annular grooves are uniformly formed in the outer wall of the inner sleeve, and the annular grooves and the inner sleeve are coaxially arranged.
In a preferred embodiment of the present invention, the distance between two adjacent annular grooves is the same as the width of the annular groove; the depth of the annular groove is half of the thickness of the inner sleeve.
In order to facilitate the installation of the space ring, the middle part of the outer wall of the inner sleeve is provided with an annular caulking groove.
In order to facilitate the assembly of the roller pins, chamfers are respectively arranged on the outer walls of the two ends of the inner sleeve.
In order to be matched with the planet shaft conveniently, a step-shaped annular groove is formed in the inner wall of one end of the inner sleeve.
The utility model has the advantages that: this planet bearing is through seting up annular groove outside the inner race, and at the interference fit in-process, annular groove can dodge like this, avoids cutting burr to produce to avoid planet bearing to burn to die in the use, improved life greatly.
Drawings
FIG. 1 is a cross-sectional view of a prior art planetary needle bearing;
fig. 2 is a sectional view of the planetary needle roller bearing of the present invention;
fig. 3 is a schematic structural view of the inner sleeve of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.
As shown in fig. 2, the planetary needle roller bearing comprises an inner sleeve 2, an outer sleeve 1, and a needle roller 3 and a spacer 4 which are arranged between the inner sleeve 2 and the outer sleeve 1, wherein a plurality of annular grooves are uniformly formed in the outer wall of the inner sleeve 2, and the annular grooves are coaxially arranged with the inner sleeve 2.
As shown in fig. 3, the inner sleeve 2 is made of EVA, so that flexibility is increased and no burr is generated during deformation. A plurality of annular grooves 5 are evenly formed in the outer wall of the inner sleeve 2, the distance between every two adjacent annular grooves 5 is the same as the width of each annular groove 5, and the depth of each annular groove 5 is half of the thickness of the inner sleeve. In addition, the middle part of the outer wall of the inner sleeve 2 is provided with an annular caulking groove 6, the outer walls of the two ends of the inner sleeve 2 are respectively provided with a chamfer 7, and the inner wall of the right end of the inner sleeve 2 is provided with a step-shaped annular groove 8.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a planet bearing, includes endotheca, overcoat and sets up the kingpin between endotheca and overcoat, its characterized in that: a plurality of annular grooves are uniformly formed in the outer wall of the inner sleeve, and the annular grooves and the inner sleeve are coaxially arranged.
2. The planetary needle bearing of claim 1, wherein: the distance between two adjacent annular grooves is the same as the width of the annular groove.
3. The planetary needle bearing of claim 2, wherein: the depth of the annular groove is half of the thickness of the inner sleeve.
4. The planetary needle bearing of claim 1, wherein: and the middle part of the outer wall of the inner sleeve is provided with an annular caulking groove for installing a space ring.
5. The planetary needle bearing of claim 1, wherein: and chamfers are respectively arranged on the outer walls of the two ends of the inner sleeve.
6. The planetary needle bearing of claim 1, wherein: a step-shaped annular groove is formed in the inner wall of one end of the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922084508.5U CN211501318U (en) | 2019-11-27 | 2019-11-27 | Planet needle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922084508.5U CN211501318U (en) | 2019-11-27 | 2019-11-27 | Planet needle bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501318U true CN211501318U (en) | 2020-09-15 |
Family
ID=72411904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922084508.5U Active CN211501318U (en) | 2019-11-27 | 2019-11-27 | Planet needle bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154021A (en) * | 2021-04-16 | 2021-07-23 | 江苏华永复合材料有限公司 | Bell-shaped drum assembly with planetary frame and planetary wheel installation method |
-
2019
- 2019-11-27 CN CN201922084508.5U patent/CN211501318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154021A (en) * | 2021-04-16 | 2021-07-23 | 江苏华永复合材料有限公司 | Bell-shaped drum assembly with planetary frame and planetary wheel installation method |
| CN113154021B (en) * | 2021-04-16 | 2023-10-13 | 江苏华永复合材料有限公司 | Bell drum assembly with planet frame and planet wheel mounting method |
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