CN204083063U - Chain axle sleeve - Google Patents
Chain axle sleeve Download PDFInfo
- Publication number
- CN204083063U CN204083063U CN201420544284.6U CN201420544284U CN204083063U CN 204083063 U CN204083063 U CN 204083063U CN 201420544284 U CN201420544284 U CN 201420544284U CN 204083063 U CN204083063 U CN 204083063U
- Authority
- CN
- China
- Prior art keywords
- chain
- axle sleeve
- chain axle
- diameter
- cylndrical
- 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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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a kind of chain axle sleeve, this chain axle sleeve outer diameter face is cylindrical body, and aperture surface two ends are designed to symmetrical conical surface, are cylndrical surface in the middle part of aperture surface.Wear extent is transferred to stressed less cylndrical surface, middle part by this chain axle sleeve, avoids the phenomenon of chain shaft rapid wear, improves chain shaft stressing conditions, improve the working life of chain.
Description
Technical field
The utility model relates to a kind of chain, is specifically related to the chain axle sleeve on chain.
Background technique
Each chain unit is by chain shaft, chain sheet, chain axle sleeve, packing ring composition.As shown in Figure 1, chain shaft 1 is designed with the chain axle sleeve 7 of a hollow cylinder, chain shaft 1 two ends respectively connect the first chain sheet 2 and the 4th chain sheet 5 that is designed with ladder aperture, ladder aperture inside the contiguous chain shaft 1 of first chain sheet 2 and the 4th chain sheet 5 and chain axle sleeve 7 stationary fit (interference fit), the ladder aperture at the two contiguous chain shaft 1 two ends is moved with chain shaft 1 and is coordinated (Spielpassung).Adjacent first chain sheet 2 and the 4th chain sheet 5, be provided with aperture and chain axle sleeve 7 stationary fit (interference fit) of the second chain sheet 3 and the 3rd chain sheet 4, second chain sheet 3 and the 3rd chain sheet 4 inside chain shaft 1.Chain axle sleeve 7 two ends and be provided with packing ring 6 between the first chain sheet 2 and the 4th chain sheet 5.
Because chain axle sleeve 7 is hollow cylindrical, the traditional design structure of its inwall is all straight, chain axle sleeve 7 and chain sheet (2, 3, 4, 5) hole interference fit, chain sheet (2, 3, 4, 5) larger pressure is applied with to chain axle sleeve 7 two-end part, metal passes through extrusion-deformation, chain axle sleeve 7 endoporus can be made to shrink, diameter diminishes, when chain axle sleeve 7 relatively rotates around chain shaft 1, first chain shaft 1 can contact with chain axle sleeve 7 endoporus two-end part, contacting point is easily caused to wear and tear, the maximum local two-end part diameter of chain shaft 1 stress diminishes, form the sunk structure that stress is concentrated, and then occur that chain shaft 1 is in the fracture of this recess and the phenomenon of rapid wear, shorten the working life of whole chain.
Model utility content
The purpose of this utility model is to provide a kind of reduction to rub between chain shaft, extends the chain axle sleeve of service life of chain.
In order to achieve the above object, technical solution of the present utility model is a kind of chain axle sleeve, and this chain axle sleeve outer diameter face is cylindrical body, and aperture surface is that two ends are designed to symmetrical conical surface, is cylndrical surface in the middle part of this aperture surface.
Good effect of the present utility model:
When chain axle sleeve outer diameter face and chain film perforation interference fit, hollow conical surface place, internal diameter two ends is out of shape and after diameter is diminished, between chain shaft and chain inner hole of shaft sleeve, stressed maximum place is hollow conical surface place, chain axle sleeve two ends.Due to the two ends of chain axle sleeve aperture surface are designed to the open circles conical surface, first chain inner hole of shaft sleeve maximum weighted place can not contact with chain shaft, wear extent is transferred to stressed less middle part open circles cylinder, thus improve chain shaft stressing conditions, improve the working life of chain.
As further improvement project, described chain axle sleeve aperture surface two ends are designed to symmetrical conical surface, in the middle part of the maximum diameter of conical surface port and chain axle sleeve aperture surface, the difference of cylndrical surface diameter controls within 0.3 ~ 0.7mm, and the difference of the length of thread engagement of conical surface length and chain axle sleeve and chain film perforation controls between 5 ~ 10mm.The design concept reducing and rub between chain shaft and chain axle sleeve can be met like this, the intensity of chain axle sleeve can be ensured again to greatest extent, can also prevent unnecessary foreign object from being entered by the gap between chain shaft and chain axle sleeve.
As a kind of alternative improvement project, the conical surface of described chain axle sleeve aperture surface two ends symmetry, also can change cylndrical surface into, and the diameter of this cylndrical surface is slightly larger than the diameter of middle part cylndrical surface.
As further improvement project, the difference of the cylndrical surface of described chain axle sleeve aperture surface two ends symmetry and the diameter of cylndrical surface, middle part controls within 0.3 ~ 0.7mm, and the difference of the length of thread engagement of the symmetrical cylndrical surface length in these two ends and chain axle sleeve and chain film perforation controls between 5 ~ 10mm.
Below in conjunction with drawings and Examples, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of the chain sheet of the utility model or prior art, chain axle sleeve, the configuration of chain shaft mutual alignment relation.
Fig. 2 is the main pseudosection of the utility model chain axle sleeve.
Embodiment
Embodiment 1
As shown in Figure 2, the utility model chain axle sleeve 7 outer diameter face is cylindrical body, and is provided with the first shaft shoulder 7-1a and the second shaft shoulder 7-1b, and the two ends of its aperture surface are provided with the first conical surface 7-2a and the second conical surface 7-2b symmetrically, are designed to cylndrical surface 7-3 in the middle part of it.When the pressure that the first shaft shoulder 7-1a and the second shaft shoulder 7-1b and chain film perforation interference fit produce, chain axle sleeve 7 is impelled to be out of shape, when internal diameter diminishes, because chain axle sleeve 7 aperture surface two ends are designed to the first symmetrical conical surface 7-2a and the second conical surface 7-2b, thus decrease the contact friction of the maximum position of the stressed maximum distortion of chain axle sleeve 7 and chain shaft, avoid chain shaft and cross quick-wearing, extend the working life of chain shaft, and then improve the working life of whole chain.The difference of the end face maximum diameter of the first conical surface 7-2a and the second conical surface 7-2b and the diameter of cylndrical surface, middle part 7-3 controls within 0.3 ~ 0.7mm, and the difference of the length of thread engagement of conical surface length and chain axle sleeve 7 and chain film perforation controls within 5 ~ 10mm better.Both ensured technically to reduce wear between chain axle sleeve 7 and chain shaft, be unlikely to again the intensity reducing chain axle sleeve.
Embodiment 2
As shown in Figure 2, the utility model chain axle sleeve 7 outer diameter face is designed to integrity cylindrical body, namely cancels the first shaft shoulder 7-1a and the second shaft shoulder 7-1b structural design.Other technologies key element remains unchanged with reference to embodiment 1.
Embodiment 3
Also the first conical surface 7-2a of chain axle sleeve 7 aperture surface two ends symmetric design in above-described embodiment 1 and the second conical surface 7-2b can be changed into the cylndrical surface of two symmetries, the diameter of this cylndrical surface is slightly larger than the diameter of cylndrical surface, middle part 7-3.The difference of the diameter of this two symmetrical cylndrical surface and the diameter of cylndrical surface, middle part 7-3 can be controlled within 0.3 ~ 0.7mm, and the difference of the length of thread engagement of its length and chain axle sleeve 7 and chain film perforation controls within 5 ~ 10mm.
Claims (4)
1. a chain axle sleeve, is characterized in that: this chain axle sleeve [7] outer diameter face is cylindrical body, and aperture surface is that two ends are designed to symmetrical conical surface [7-2a, 7-2b], is cylndrical surface [7-3] in the middle part of it.
2. chain axle sleeve according to claim 1, it is characterized in that: these chain axle sleeve [7] aperture surface two ends are designed to symmetrical conical surface [7-2a, 7-2b], in the middle part of the maximum diameter of conical surface port and chain axle sleeve [7] aperture surface, the difference of cylndrical surface [7-3] diameter controls within 0.3 ~ 0.7mm, and the difference of the length of thread engagement of this conical surface length and chain axle sleeve [7] and chain film perforation controls within 5 ~ 10mm.
3. chain axle sleeve according to claim 1, is characterized in that: change the conical surface [7-2a, 7-2b] of this chain axle sleeve [7] aperture surface two ends symmetry into cylndrical surface, and the diameter of this cylndrical surface is larger than the diameter of cylndrical surface, described middle part [7-3].
4. chain axle sleeve according to claim 3, it is characterized in that: the difference of the cylndrical surface of this chain axle sleeve [7] aperture surface two ends symmetry and the diameter of cylndrical surface, described middle part [7-3] controls within 0.3 ~ 0.7mm, the difference of the length of thread engagement of the symmetrical cylndrical surface length in these two ends and chain axle sleeve [7] and chain film perforation controls between 5 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544284.6U CN204083063U (en) | 2014-09-22 | 2014-09-22 | Chain axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544284.6U CN204083063U (en) | 2014-09-22 | 2014-09-22 | Chain axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083063U true CN204083063U (en) | 2015-01-07 |
Family
ID=52175786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420544284.6U Expired - Fee Related CN204083063U (en) | 2014-09-22 | 2014-09-22 | Chain axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083063U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293292A (en) * | 2015-11-27 | 2016-02-03 | 山东钢铁股份有限公司 | Heavy hammer type lifting height limiter and heavy hammer thereof |
| CN113006993A (en) * | 2021-03-24 | 2021-06-22 | 重庆长安汽车股份有限公司 | High pressure fuel pump driving structure |
-
2014
- 2014-09-22 CN CN201420544284.6U patent/CN204083063U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293292A (en) * | 2015-11-27 | 2016-02-03 | 山东钢铁股份有限公司 | Heavy hammer type lifting height limiter and heavy hammer thereof |
| CN113006993A (en) * | 2021-03-24 | 2021-06-22 | 重庆长安汽车股份有限公司 | High pressure fuel pump driving structure |
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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: 20150107 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |