CN207830377U - A kind of bearing needle - Google Patents
A kind of bearing needle Download PDFInfo
- Publication number
- CN207830377U CN207830377U CN201721776821.XU CN201721776821U CN207830377U CN 207830377 U CN207830377 U CN 207830377U CN 201721776821 U CN201721776821 U CN 201721776821U CN 207830377 U CN207830377 U CN 207830377U
- Authority
- CN
- China
- Prior art keywords
- needle roller
- hole
- needle
- heat
- roller ontology
- 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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- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model discloses a kind of bearing needles, including needle roller ontology, needle roller ontology is cylindrical, the both ends of needle roller ontology are in cone, the axial direction of needle roller ontology is provided with through-hole, heat-conducting cylinder is arranged in through-hole, it is connected by support element between heat-conducting cylinder and through-hole, the length of heat-conducting cylinder is not more than the length of through-hole, support element includes multiple heat conduction ribs, along the radial distribution of through-hole, two endfaces of needle roller ontology are respectively connected with wear ring, helicla flute are provided on the outer wall of needle roller ontology multiple heat conduction ribs.The utility model has preferable heat dissipation and lubricant effect, can effectively reduce the abrasion of needle roller outer wall and needle roller end, extend the service life of needle roller.
Description
Technical field
The utility model is related to technical field of bearings, and in particular to a kind of bearing needle.
Background technology
Needle bearing is the common components in mechanical transmission course, and existing needle bearing is mainly by outer ring, inner ring, holding
Frame and needle roller composition, retainer is the component for guiding needle roller, and when work, by the rolling of needle roller, to reach, to reduce two opposite
Move the purpose of the frictional resistance between parts.But existing needle roller heat dissipation effect and lubricant effect are poor, needle roller is easily ground
Damage, cannot be satisfied use demand.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of bearing needles, have preferable heat dissipation and lubrication effect
Fruit can effectively reduce the abrasion of needle roller outer wall and needle roller end, extend the service life of needle roller.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：
A kind of bearing needle, including needle roller ontology, needle roller ontology is cylindrical, and the both ends of the needle roller ontology are in circular cone
The axial direction of shape, the needle roller ontology is provided with through-hole, is arranged with heat-conducting cylinder in the through-hole, the heat-conducting cylinder and through-hole it
Between be connected by support element, the length of heat-conducting cylinder is not more than the length of through-hole, and the support element includes multiple heat conduction ribs, more
For a heat conduction rib along the radial distribution of through-hole, two endfaces of the needle roller ontology are respectively connected with wear ring, needle roller sheet
It is provided with helicla flute on the outer wall of body.
Multiple support elements are provided between the heat-conducting cylinder and through-hole, multiple support elements are along the axial equidistant of through-hole
Arrangement.
The wear ring includes rubber layer, and the both sides of the rubber layer are respectively connected with ceramic layer.
The thickness of the ceramic layer is less than the thickness of rubber layer.
The groove depth of the helicla flute is 0.5~2.5mm.
The axis of the through-hole and the axis of heat-conducting cylinder coincide.
Cobalt-based alloy layer is coated on the outer wall of the needle roller ontology.
The thickness of the cobalt-based alloy layer is 10~30 μm.
The utility model has the advantages that：The bearing needle of the utility model has preferable heat dissipation and lubrication effect
Fruit can effectively reduce the abrasion of needle roller outer wall and needle roller end, extend the service life of needle roller.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-sectional view of Fig. 1；
In figure：1, needle roller ontology, 11, through-hole, 12, helicla flute, 2, heat-conducting cylinder, 3, support element, 31, heat conduction rib, 4, resistance to
Bull ring.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
As depicted in figs. 1 and 2, a kind of bearing needle, including needle roller ontology 1, needle roller ontology 1 is cylindrical, needle roller ontology 1
Both ends be in cone, be conducive to the 1 end off-load of needle roller ontology, reduce the end wear of needle roller ontology 1, the axis of needle roller ontology 1
Direction is provided with through-hole 11, heat-conducting cylinder 2 is arranged in through-hole 11, is connected by support element 3 between heat-conducting cylinder 2 and through-hole 11
It connects, the length of heat-conducting cylinder 2 is not more than the length of through-hole 11, and support element 3 includes multiple heat conduction ribs 31, multiple 31 edges of heat conduction rib
The radial distribution of through-hole 11, to play preferably heat conduction and cooling effect, but also needle roller ontology 1 is more uniformly stressed；
Two endfaces of needle roller ontology 1 are respectively connected with wear ring 4, and helicla flute 12 is provided on the outer wall of needle roller ontology 1,
Convenient for storing lubricating oil, the surface of needle roller ontology 1 can be uniformly oriented to by also allowing for lubricating oil, improved lubricant effect, subtracted simultaneously
The contact area of few needle roller and bearing outer ring, inner ring, reduces friction.
Needle roller ontology 1 uses hollow-core construction, while heat-conducting cylinder 2 is arranged, and can both increase by 1 heat conduction of needle roller ontology and heat dissipation is imitated
Fruit, while can also enhance the intensity of needle roller ontology 1, it is unlikely to deform.
Further, multiple support elements 3, axis of the multiple support elements 3 along through-hole 11 are provided between heat-conducting cylinder 2 and through-hole 11
To being equally spaced.
Further, wear ring 4 includes rubber layer, and the both sides of rubber layer are respectively connected with ceramic layer so that wear ring has
Preferable damping and abrasion resistant effect, lower the abrasion of needle roller body end.
Further, the thickness of ceramic layer is less than the thickness of rubber layer.
Further, the groove depth of helicla flute 12 is 0.5~2.5mm.
Further, 2 axis of the axis of through-hole 11 and heat-conducting cylinder coincide, and may make the operation of needle roller ontology 1 more
Stablize.
Further, it is coated with cobalt-based alloy layer on the outer wall of needle roller ontology 1, has preferable wear-resisting, corrosion-resistant and resistance to
The performance of high-temperature oxydation.
Further, the thickness of cobalt-based alloy layer is 10~30 μm.
The utility model has preferable heat dissipation and lubricant effect, can effectively reduce the mill of needle roller outer wall and needle roller end
Damage, extends the service life of needle roller.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain it is without being limited thereto.Those skilled in the art on the basis of the utility model made by equivalent substitute or change
It changes, both is within the protection scope of the present invention.The scope of protection of the utility model is subject to claims.
Claims (8)
1. a kind of bearing needle, characterized in that including needle roller ontology, needle roller ontology is cylindrical, the both ends of the needle roller ontology
It is in cone, the axial direction of the needle roller ontology is provided with through-hole, heat-conducting cylinder, the heat-conducting cylinder are arranged in the through-hole
It is connected by support element between through-hole, the length of heat-conducting cylinder is not more than the length of through-hole, and the support element includes multiple leads
Hot rib, along the radial distribution of through-hole, two endfaces of the needle roller ontology are respectively connected with wear-resisting multiple heat conduction ribs
Ring is provided with helicla flute on the outer wall of needle roller ontology.
2. bearing needle as described in claim 1, characterized in that be provided with multiple supports between the heat-conducting cylinder and through-hole
Part, multiple support elements are equally spaced along the axial direction of through-hole.
3. bearing needle as described in claim 1, characterized in that the wear ring includes rubber layer, and the two of the rubber layer
Side is respectively connected with ceramic layer.
4. bearing needle as claimed in claim 3, characterized in that the thickness of the ceramic layer is less than the thickness of rubber layer.
5. bearing needle as described in claim 1, characterized in that the groove depth of the helicla flute is 0.5~2.5mm.
6. bearing needle as described in claim 1, characterized in that the axis of the through-hole and the axis of heat-conducting cylinder coincide.
7. bearing needle as described in claim 1, characterized in that be coated with cobalt-base alloys on the outer wall of the needle roller ontology
Layer.
8. bearing needle as claimed in claim 7, characterized in that the thickness of the cobalt-based alloy layer is 10~30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776821.XU CN207830377U (en) | 2017-12-18 | 2017-12-18 | A kind of bearing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776821.XU CN207830377U (en) | 2017-12-18 | 2017-12-18 | A kind of bearing needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830377U true CN207830377U (en) | 2018-09-07 |
Family
ID=63387968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721776821.XU Expired - Fee Related CN207830377U (en) | 2017-12-18 | 2017-12-18 | A kind of bearing needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139881A (en) * | 2018-09-25 | 2019-01-04 | 珠海格力电器股份有限公司 | Pin gear, speed reducer and robot |
-
2017
- 2017-12-18 CN CN201721776821.XU patent/CN207830377U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139881A (en) * | 2018-09-25 | 2019-01-04 | 珠海格力电器股份有限公司 | Pin gear, speed reducer and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20181218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |