CN200943644Y - Machine processed outer ring needle roller bearing - Google Patents
Machine processed outer ring needle roller bearing Download PDFInfo
- Publication number
- CN200943644Y CN200943644Y CN 200620077032 CN200620077032U CN200943644Y CN 200943644 Y CN200943644 Y CN 200943644Y CN 200620077032 CN200620077032 CN 200620077032 CN 200620077032 U CN200620077032 U CN 200620077032U CN 200943644 Y CN200943644 Y CN 200943644Y
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- CN
- China
- Prior art keywords
- outer ring
- needle roller
- ring
- machining
- needle
- 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
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Abstract
The utility model discloses a needle roller bearing used by outer ring for machine work, which comprises an outer ring (1) for machine work and a needle roller (2). Retainer rings (3) are respectively provided on two axial ends of the needle roller, meanwhile, the retainer ring (3) is trough shape ring with concentric internal and external diameter. At two sides of the outer ring (1) for machine work, the trough shape rings are arranged with opening surfaces opposite and end face outwards. The short revolving body of the needle roller (21) at both ends of the needle roller (2) is jointed with ringy groove of the retainer ring (3) in an insertion manner. The generating line of internal trough rim (31) of the retainer ring (3) parallels with the generating line of the revolving body at both ends of the needle roller. The radial movement of the needle roller is restricted because the trough shape retainer ring (3) is arranged at both axial ends of the needle roller of the outer ring for machine work, thereby, the needle roller (2) will not fall down from internal circle of outer ring (1) made of forged steel and the reliability of needle roller bearing used by outer ring for machine work during assembly, transportation and installation is increased.
Description
Technical field
The utility model relates to a kind of bearing, belongs to technical field of rolling bearings, particularly a kind of needle bearing that does not have inner ring, no retainer.
Background technique
Needle bearing is compared with the rolling bearing of other types, bearing under the identical radial load, the radial space minimum of needle bearing, this kind bearing is widely used in the parts that the radial space size of mechanized equipments such as textile manufacturing machine, Transport Machinery, metallurgical machinery is restricted.Existing part does not have the needle bearing of retainer, and on the raceway, needle roller can be arranged along the circumferentially full in turn circle of interior raceway in the annular of bearing outer ring, improved the bearing capacity of bearing, in addition, this class needle bearing is not established bearing inner race, can further reduce the outside dimension of bearing.Its structure as shown in Figure 1, this class needle bearing exists following problem: because the needle roller of the full needle bearing in machining outer ring is completely to enclose on the interior raceway of the annular that is bonded in bearing outer ring in turn with lubricating grease, no bearing inner race is held needle roller, therefore, in bearing assembling, transportation, installation process, needle roller is scattered easily.
Summary of the invention
The purpose of this utility model is the problem of being scattered easily for the needle roller that solves the full needle bearing in existing machining outer ring, the full needle bearing in the machining outer ring that provides a kind of needle roller can not drop.
The purpose of this utility model is achieved by the following technical programs.
The full needle bearing in a kind of machining outer ring, comprise machining outer ring and needle roller, needle roller is arranged in turn along the circumferentially full circle of raceway groove in the annular of machining outer ring, the intermediate portion of needle roller is an elongated cylinder, two ends are the short solid of rotation of diameter less than described elongated cylinder, this elongated cylinder part radially is trapped in the interior raceway groove of annular of machining outer ring, at the axial two ends of needle bearing back-up ring is housed respectively.
The purpose of this utility model can also further realize by following technical measures:
The full needle bearing in aforesaid machining outer ring, wherein said back-up ring is the concentric flute profile annulus in inside and outside footpath, relatively, the bottom surface is contained in the both sides in week in the machining outer ring outwardly about the opening surface of described back-up ring flute profile annulus.
The full needle bearing in aforesaid machining outer ring, the internal diameter interference fit of the external diameter of wherein said back-up ring and machining outer ring, the short solid of rotation at described needle roller two ends is inserted in the ring groove of back-up ring.
The full needle bearing in aforesaid machining outer ring, the short revolution voxel line parallel at plain line of the internal diameter trough rim of wherein said back-up ring and needle roller two ends.
Advantage of the present utility model is that because flute profile annulus back-up ring respectively is equipped with at the axial two ends of the full needle bearing in machining outer ring, the short solid of rotation at needle roller two ends can be inserted in the ring groove of back-up ring, and moving radially of needle roller is restricted; Simultaneously, because the elongated cylinder part radially of the centre of needle roller is trapped in the interior raceway groove of the annular of machining outer ring, therefore, needle roller can not fall apart, drop, and has improved the reliability of needle bearing in assembling, transportation, installation process.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of the full needle bearing in existing machining outer ring.
Fig. 2 is the structural representation of the full needle bearing in machining of the present utility model outer ring.
Fig. 3 is the partial enlarged drawing at A place among Fig. 2.
Embodiment
In Fig. 2 and embodiment shown in Figure 3, the full needle bearing in machining of the present utility model outer ring comprises machining outer ring 1 and needle roller 2, raceway groove 11 in the interior Zhou Zhongyang of machining outer ring 1 is provided with an annular, the intermediate portion of needle roller 2 is an elongated cylinder, its two end portions is the short solid of rotation 21 of diameter less than described elongated cylinder, needle roller 2 is arranged along the circumferentially full in turn circle of raceway in the annular of machining outer ring 1, its elongated cylinder part radially is trapped in the annular interior raceway groove 11 of Zhou Zhongyang in the described machining outer ring, at the axial two ends of needle bearing back-up ring 3 is housed respectively.Back-up ring 3 is the concentric flute profile annulus in inside and outside footpath, and relatively, the bottom surface is contained in the both sides of machining outer ring 1 outwardly, the internal diameter interference fit of the external diameter of back-up ring 3 and machining outer ring 1 about the opening surface of its flute profile annulus.The short solid of rotation 21 at needle roller 2 two ends is inserted in the ring groove of back-up ring 3, the plain line parallel of the plain line of the internal diameter trough rim 31 of back-up ring 3 and the short solid of rotation 21 of described needle roller 2.
Because annulus flute profile back-up ring 3 is contained in the axial two ends of the full needle bearing in machining outer ring, and moving radially of needle roller 2 is restricted; The elongated cylinder part radially of needle roller 2 is trapped in the annular interior raceway groove 11 of Zhou Zhongyang in the machining outer ring 1 simultaneously, and moving axially also of needle roller 2 is restricted; Like this, needle roller 2 just can be from the outer ring 1 fall down in interior week, thereby improved the full reliability of needle bearing in assembling, transportation, installation process in machining outer ring.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (4)
1. needle bearing is expired in a machining outer ring, comprise machining outer ring (1) and needle roller (2), described needle roller (2) is arranged in turn along the circumferentially full circle of raceway groove (11) in the annular of machining outer ring (1), the intermediate portion of described needle roller (2) is an elongated cylinder, two ends are the short solid of rotation (21) of diameter less than described elongated cylinder, this elongated cylinder part radially is trapped in the interior raceway groove (11) of annular of machining outer ring (1), it is characterized in that, back-up ring (3) respectively is housed at the axial two ends of described needle bearing.
2. the full needle bearing in machining according to claim 1 outer ring, it is characterized in that, described back-up ring (3) is the concentric flute profile annulus in inside and outside footpath, and relatively, the bottom surface is contained in the both sides in week in the machining outer ring outwardly about the opening surface of described back-up ring (3) flute profile annulus.
3. the full needle bearing in machining according to claim 2 outer ring is characterized in that, the internal diameter interference fit of the external diameter of described back-up ring (3) and machining outer ring (1), and the short solid of rotation (21) at described needle roller (2) two ends is inserted in the ring groove of back-up ring (3).
4. according to the full needle bearing of claim 2 or 3 described machining outer rings, it is characterized in that the plain line parallel of short solid of rotation (21) at the plain line of internal diameter trough rim (31) of described back-up ring (3) and needle roller (2) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077032 CN200943644Y (en) | 2006-08-30 | 2006-08-30 | Machine processed outer ring needle roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077032 CN200943644Y (en) | 2006-08-30 | 2006-08-30 | Machine processed outer ring needle roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943644Y true CN200943644Y (en) | 2007-09-05 |
Family
ID=38718276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620077032 Expired - Fee Related CN200943644Y (en) | 2006-08-30 | 2006-08-30 | Machine processed outer ring needle roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943644Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545463A (en) * | 2016-12-08 | 2017-03-29 | 镇江大力液压马达股份有限公司 | A kind of high pressure flat porting cycloid hydraulic pressure motor |
-
2006
- 2006-08-30 CN CN 200620077032 patent/CN200943644Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545463A (en) * | 2016-12-08 | 2017-03-29 | 镇江大力液压马达股份有限公司 | A kind of high pressure flat porting cycloid hydraulic pressure motor |
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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: 20070905 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |