CN203614596U - Needle roller closing ring of wheel hub reducer - Google Patents
Needle roller closing ring of wheel hub reducer Download PDFInfo
- Publication number
- CN203614596U CN203614596U CN201320705057.2U CN201320705057U CN203614596U CN 203614596 U CN203614596 U CN 203614596U CN 201320705057 U CN201320705057 U CN 201320705057U CN 203614596 U CN203614596 U CN 203614596U
- Authority
- CN
- China
- Prior art keywords
- needle roller
- roller back
- ring body
- ring
- fluid
- 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 - Lifetime
Links
- 239000003638 chemical reducing agent Substances 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims description 48
- 239000002131 composite material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- -1 compound salt Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a needle roller closing ring of a wheel hub reducer. The needle roller closing ring comprises a needle roller closing ring body, wherein a plurality of oil grooves are formed in a surface of one side of the needle roller closing ring body, the length direction of each oil groove is arranged in the radial direction of the needle roller closing ring body, the outer end part of each oil groove is connected with the outer circle of the needle roller closing ring body, the inner end part of each oil groove is located between the outer circle and the inner circle of the needle roller closing ring body, and the depth of the inner end part of the oil groove is smaller than that of the outer end part of the oil groove. According to the needle roller closing ring of the wheel hub reducer, the oil grooves are formed in the needle roller ring body, so that better circulation of oil in a planet gear is guaranteed; and a needle roller is better fixed in an inner hole of the planet gear.
Description
Technical field
The utility model relates to a kind of needle roller back-up ring of wheel reductor, the planet wheel that the utility model 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 work time is engaged with sun gear and ring gear simultaneously, by the transmission of power of sun gear to ring gear.When 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 purpose of this utility model is to overcome the deficiencies in the prior art, provides one to make fluid better circulation in needle bearing, also can make needle roller better be fixed in planet wheel, prevents the needle roller back-up ring of needle roller from the wheel reductor that wherein comes off.
The technological scheme providing according to the utility model, 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 semicircle cylindricality, 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 utility model is offered fluid groove on needle roller back-up ring body, has guaranteed fluid better circulation in planet wheel; The utility model has guaranteed that needle roller is better fixed in planet wheel endoporus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A sectional view of Fig. 1.
Fig. 3 is practical application structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
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 semicircle cylindricality, 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 semicircle cylindricality, 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.
The surface of needle roller back-up ring is through the processing of salt bath composite treatment technology, and the combination process that the series of processes that salt bath composite treatment technology is made up 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.Through salt bath composite treatment technology needle roller back-up ring after treatment, 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.
When 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 utility model 2 chambeies, reaches with this 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) is semicircle cylindricality, 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 |
|---|---|---|---|
| CN201320705057.2U CN203614596U (en) | 2013-11-08 | 2013-11-08 | Needle roller closing ring of wheel hub reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705057.2U CN203614596U (en) | 2013-11-08 | 2013-11-08 | Needle roller closing ring of wheel hub reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614596U true CN203614596U (en) | 2014-05-28 |
Family
ID=50767245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705057.2U Expired - Lifetime CN203614596U (en) | 2013-11-08 | 2013-11-08 | Needle roller closing ring of wheel hub reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573821A (en) * | 2013-11-08 | 2014-02-12 | 无锡威孚精密机械制造有限责任公司 | Needle roller retainer ring of hub reduction gear |
-
2013
- 2013-11-08 CN CN201320705057.2U patent/CN203614596U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573821A (en) * | 2013-11-08 | 2014-02-12 | 无锡威孚精密机械制造有限责任公司 | Needle roller retainer ring of hub reduction gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |