CN103573821A - Needle roller retainer ring of hub reduction gear - Google Patents
Needle roller retainer ring of hub reduction gear Download PDFInfo
- Publication number
- CN103573821A CN103573821A CN201310554821.5A CN201310554821A CN103573821A CN 103573821 A CN103573821 A CN 103573821A CN 201310554821 A CN201310554821 A CN 201310554821A CN 103573821 A CN103573821 A CN 103573821A
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- CN
- China
- Prior art keywords
- needle roller
- roller back
- ring body
- retainer ring
- ring
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- 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.)
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Abstract
The invention relates to a needle roller retainer ring of a hub reduction gear. The needle roller retainer ring comprises a needle roller retainer ring body, wherein one side surface of the needle roller retainer ring body is provided with a plurality of oil grooves, the length direction of each oil groove is arranged along the radial direction of the needle roller retainer ring body, the outer end part of each oil groove is connected with the outer circle of the needle roller retainer ring body, the inner end part of each oil groove is arranged between the outer circle and the inner circle of the needle roller retainer ring body, and the depth of the inner end part of each oil groove is smaller than that of the outer end part. The needle roller retainer ring body is provided with the oil grooves, so that the oil can well circulate inside a planet gear; by adopting the needle roller retainer ring, a needle roller can be better fixed inside an inner hole of the planet gear.
Description
Technical field
The present invention relates to a kind of needle roller back-up ring of wheel reductor, the planet wheel that the present invention is specifically related to use on a kind of wheel reductor needle roller back-up ring.
Background technique
Wheel reductor is one of constituent element of automotive axle, can play and reduce the main rotating speed that reduces to pass over, and increases the effect of gear end moment of torsion.Sun gear, planet wheel are again the core components of wheel reductor, and planet wheel when work and sun gear and ring gear mesh simultaneously, by the transmission of power of sun gear to ring gear.During work, planet wheel ceaselessly rotates around planet axis, and planet wheel is connected in planet axis by needle bearing.Needle roller back-up ring forms by upper and lower two, plays a part needle roller to be fixed in planet wheel endoporus.Because fluid need to circulate in needle bearing, to reach object lubricated and heat radiation.Existing needle roller back-up ring is simple in structure, and fluid circulation effect is not best; Insufficient strength, there will be the situation of wearing and tearing, and the life-span of needle roller back-up ring is easily influenced.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of fluid better circulation in needle bearing that makes is provided, also can make needle roller better be fixed in planet wheel, prevent that needle roller is from the needle roller back-up ring of the wheel reductor that wherein comes off.
According to technological scheme provided by the invention, the needle roller back-up ring of described wheel reductor, comprise needle roller back-up ring body, on a side surface of needle roller back-up ring body, offer some fluid grooves, the length direction of fluid groove is along the radially setting of needle roller back-up ring body, the cylindrical of the outer end of fluid groove and needle roller back-up ring body joins, and the inner end of fluid groove is between the cylindrical and inner circle of needle roller back-up ring body, and the degree of depth of the inner end of fluid groove is less than the degree of depth of its outer end.
On a side surface of needle roller back-up ring body, offer some the fluid grooves that are even setting.
On a side surface of needle roller back-up ring body, offer altogether 4 ~ 8 fluid grooves that are even setting.
Outer section of fluid groove is half-cylindrical, and the inner segment of fluid groove is equate with outer section of radius of fluid groove 1/4 spherical.
Described fluid groove is the degree of depth from outer end to its inner end and dwindles gradually setting.
The present invention offers fluid groove on needle roller back-up ring body, has guaranteed fluid better circulation in planet wheel; The present invention has guaranteed that needle roller is better fixed in planet wheel endoporus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A sectional view of Fig. 1.
Fig. 3 is practical application structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The needle roller back-up ring of this wheel reductor, comprise needle roller back-up ring body 1, on a side surface of needle roller back-up ring body 1, offer some fluid grooves 2, the length direction of fluid groove 2 is along the radially setting of needle roller back-up ring body 1, the cylindrical of the outer end of fluid groove 2 and needle roller back-up ring body 1 joins, the inner end of fluid groove 2 is between the cylindrical and inner circle of needle roller back-up ring body 1, and the degree of depth of the inner end of fluid groove 2 is less than the degree of depth of its outer end.
On a side surface of needle roller back-up ring body 1, offer some the fluid grooves 2 that are even setting.
On a side surface of needle roller back-up ring body 1, offer altogether 4 ~ 8 fluid grooves 2 that are even setting.
Outer section of fluid groove 2 is half-cylindrical, and the inner segment of fluid groove 2 is equate with outer section of radius of fluid groove 2 1/4 spherical.
Described fluid groove 2 is the degree of depth from outer end to its inner end and dwindles gradually setting.
Outer section of fluid groove 2 is half-cylindrical, and the inner segment of fluid groove 2 is equate with outer section of radius of fluid groove 2 1/4 spherical, and like this, the inner segment degree of depth of fluid groove 2 will be shallower than other parts of fluid groove 2.Such fluid groove 2 structures are passed through smoothly fluid from needle roller back-up ring, thereby make the circulation of fluid in whole wheel reductor system stronger.
Process through salt bath composite treatment technology on the surface of needle roller back-up ring, and the combination process that the series of processes that salt bath composite treatment technology is comprised of oxidation and nitriding operation forms is also referred to as compound salt bath treatment technology simultaneously, realizes the compound of oxidation and nitriding operation.Needle roller back-up ring after salt bath composite treatment technology is processed, surface abrasion resistance is greatly improved, thereby can reduce the wearing and tearing of metal surface; After salt bath composite treatment technology is processed, the friction factor on needle roller back-up ring surface reduces, and the generation of frictional heat also reduces, and has effectively prevented the generation of wearing and tearing, has strengthened intensity and the wear resistance of needle roller back-up ring, the life-span of having improved needle roller back-up ring.
During actual use, needle roller 3 should connect planet wheel 4 and planet axis 5, guarantees that planet wheel 4 rotates around planet axis 5, guarantees that again fluid can flow in fluid groove of the present invention 2 chambeies, with this, reaches the effect that reduces planet wheel 4 temperature.
Claims (5)
1. the needle roller back-up ring of a wheel reductor, comprise needle roller back-up ring body (1), it is characterized in that: on a side surface of needle roller back-up ring body (1), offer some fluid grooves (2), the length direction of fluid groove (2) is along the radially setting of needle roller back-up ring body (1), the cylindrical of the outer end of fluid groove (2) and needle roller back-up ring body (1) joins, the inner end of fluid groove (2) is positioned between the cylindrical and inner circle of needle roller back-up ring body (1), and the degree of depth of the inner end of fluid groove (2) is less than the degree of depth of its outer end.
2. the needle roller back-up ring of wheel reductor as claimed in claim 1, is characterized in that: on a side surface of needle roller back-up ring body (1), offer some the fluid grooves (2) that are even setting.
3. the needle roller back-up ring of wheel reductor as claimed in claim 2, is characterized in that: on a side surface of needle roller back-up ring body (1), offer altogether 4 ~ 8 fluid grooves (2) that are even setting.
4. the needle roller back-up ring of wheel reductor as claimed in claim 1, is characterized in that: outer section of fluid groove (2) for half-cylindrical, and the inner segment of fluid groove (2) is equate with outer section of radius of fluid groove (2) 1/4 spherical.
5. the needle roller back-up ring of wheel reductor as claimed in claim 1, is characterized in that: described fluid groove (2) is the degree of depth from outer end to its inner end and dwindles gradually setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554821.5A CN103573821A (en) | 2013-11-08 | 2013-11-08 | Needle roller retainer ring of hub reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554821.5A CN103573821A (en) | 2013-11-08 | 2013-11-08 | Needle roller retainer ring of hub reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573821A true CN103573821A (en) | 2014-02-12 |
Family
ID=50046327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310554821.5A Pending CN103573821A (en) | 2013-11-08 | 2013-11-08 | Needle roller retainer ring of hub reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573821A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054449A (en) * | 1991-04-05 | 1991-09-11 | 文联煜 | Low-cost technology for liquid carbonitriding |
| JP2005214392A (en) * | 2004-02-02 | 2005-08-11 | Nsk Ltd | Planetary gear mechanism and gear side race |
| CN202451716U (en) * | 2012-01-29 | 2012-09-26 | 汪东方 | Planet wheel mechanism for wheel edge speed reducer of loading machine |
| EP2559914A1 (en) * | 2010-04-13 | 2013-02-20 | Kawasaki Jukogyo Kabushiki Kaisha | Planetary gear device and gear reducing device |
| CN203614596U (en) * | 2013-11-08 | 2014-05-28 | 无锡威孚精密机械制造有限责任公司 | Needle roller closing ring of wheel hub reducer |
-
2013
- 2013-11-08 CN CN201310554821.5A patent/CN103573821A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054449A (en) * | 1991-04-05 | 1991-09-11 | 文联煜 | Low-cost technology for liquid carbonitriding |
| JP2005214392A (en) * | 2004-02-02 | 2005-08-11 | Nsk Ltd | Planetary gear mechanism and gear side race |
| EP2559914A1 (en) * | 2010-04-13 | 2013-02-20 | Kawasaki Jukogyo Kabushiki Kaisha | Planetary gear device and gear reducing device |
| CN202451716U (en) * | 2012-01-29 | 2012-09-26 | 汪东方 | Planet wheel mechanism for wheel edge speed reducer of loading machine |
| CN203614596U (en) * | 2013-11-08 | 2014-05-28 | 无锡威孚精密机械制造有限责任公司 | Needle roller closing ring of wheel hub reducer |
Non-Patent Citations (1)
| Title |
|---|
| 李惠友，等: "《高耐磨高抗蚀微变形QPQ盐浴复合处理技术》", 31 March 1997 * |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |
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| RJ01 | Rejection of invention patent application after publication |