CN103604003A - Special-shaped steel pipe - Google Patents
Special-shaped steel pipe Download PDFInfo
- Publication number
- CN103604003A CN103604003A CN201310557803.2A CN201310557803A CN103604003A CN 103604003 A CN103604003 A CN 103604003A CN 201310557803 A CN201310557803 A CN 201310557803A CN 103604003 A CN103604003 A CN 103604003A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- steel tubes
- hole
- steel
- tubes according
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Abstract
The invention discloses a special-shaped steel pipe which comprises a steel pipe body, a hole formed in the middle of the steel pipe body and a special-shaped face arranged on a hole wall. By the special-shaped steel pipe, convenience can be brought to enabling lubricating oil to stay on the hole wall, and service life of the special-shaped steel pipe is effectively prolonged.
Description
Technical field
The present invention relates to a kind of steel tubes.
Background technique
Its hole wall of steel pipe in tradition use is generally curved surface, is unfavorable for that lubricant oil stops, and reduced the working life of steel pipe.(actual service condition is such: it is for the shell of electric tool motor, tradition is to obtain special-shaped internal surface by the way of gold machining, with chapped pipe internal surface, just need not process and can directly use, improve the utilization ratio of material, reduce production costs)
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of lubricant oil of being convenient to and stops, and effectively increases the steel tubes of long service life.
For addressing the above problem, the present invention adopts following technological scheme:
A steel tubes, comprises steel pipe, and is arranged on the hole at steel pipe middle part, and is arranged on the shaped face on hole wall.
As preferred technological scheme, described steel pipe be shaped as circle.
As preferred technological scheme, end face and the bottom surface of described steel pipe are plane.
As preferred technological scheme, described hole is through hole.
As preferred technological scheme, the Concentricity tolerance in described steel pipe and hole is not more than 0.1cm.
As preferred technological scheme, described shaped face comprises curved surface and faces directly.
As preferred technological scheme, described curved surface is provided with two, is symmetric respectively with steel pipe axle center.
As preferred technological scheme, described in face directly and be provided with more than two, with steel pipe axle center, be symmetric respectively.
As preferred technological scheme, described curved surface is provided with the first fillet with the joining place of facing directly, and the described joining place of respectively facing directly is provided with the second fillet.
As preferred technological scheme, the size of described the first fillet is greater than the size of the second fillet.
The steel tubes of the application of the invention, can facilitate lubricant oil to rest on hole wall, effectively increases the working life of steel tubes.
Accompanying drawing explanation
For ease of explanation, the present invention is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is the structural representation of steel tubes of the present invention.
Embodiment
Consult a kind of steel tubes shown in Fig. 1, comprise steel pipe 1, and be arranged on the hole 2 at steel pipe 1 middle part, and be arranged on the shaped face 3 on 2 walls of hole.
Wherein, described steel pipe 1 is shaped as circle.
End face and the bottom surface of described steel pipe 1 are plane.
Described hole 2 is through hole.
Described steel pipe 1 is not more than 0.1cm with the Concentricity tolerance in hole 2.
Described shaped face 3 comprises curved surface 4 and faces 5 directly.
Described curved surface 4 is provided with two, is symmetric respectively with steel pipe 1 axle center.
Describedly face 5 directly and be provided with more than two, with steel pipe 1 axle center, be symmetric respectively.
Described curved surface 4 is provided with the first fillet (not shown) with the joining place of facing 5 directly, and described 5 the joining place respectively faced directly is provided with the second fillet (not shown).
The size of described the first fillet (not shown) is greater than the size of the second fillet (not shown).
The steel tubes of the application of the invention, can facilitate lubricant oil to rest on hole wall, effectively increases the working life of steel tubes.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited
Claims (10)
1. a steel tubes, is characterized in that: comprise steel pipe, and be arranged on the hole at steel pipe middle part, and be arranged on the shaped face on hole wall.
2. steel tubes according to claim 1, is characterized in that: described steel pipe be shaped as circle.
3. steel tubes according to claim 1, is characterized in that: end face and the bottom surface of described steel pipe are plane.
4. steel tubes according to claim 1, is characterized in that: described hole is through hole.
5. steel tubes according to claim 1, is characterized in that: the Concentricity tolerance in described steel pipe and hole is not more than 0.1cm.
6. steel tubes according to claim 1, is characterized in that: described shaped face comprises curved surface and faces directly.
7. steel tubes according to claim 6, is characterized in that: described curved surface is provided with two, is symmetric respectively with steel pipe axle center.
8. steel tubes according to claim 6, is characterized in that: described in face directly and be provided with more than two, with steel pipe axle center, be symmetric respectively.
9. steel tubes according to claim 6, is characterized in that: described curved surface is provided with the first fillet with the joining place of facing directly, and the described joining place of respectively facing directly is provided with the second fillet.
10. steel tubes according to claim 9, is characterized in that: the size of described the first fillet is greater than the size of the second fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557803.2A CN103604003A (en) | 2013-11-11 | 2013-11-11 | Special-shaped steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557803.2A CN103604003A (en) | 2013-11-11 | 2013-11-11 | Special-shaped steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103604003A true CN103604003A (en) | 2014-02-26 |
Family
ID=50122251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310557803.2A Pending CN103604003A (en) | 2013-11-11 | 2013-11-11 | Special-shaped steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103604003A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080014342A1 (en) * | 2004-08-12 | 2008-01-17 | Schmidt + Clemens Gmbh + Co., Kg | Composite tube, method of producing for a composite tube, and use of a composite tube |
| CN201093155Y (en) * | 2007-09-29 | 2008-07-30 | 丹阳市巨贸康健器材有限公司 | Special-shaped round tube |
| CN201636448U (en) * | 2009-12-25 | 2010-11-17 | 浙江海亮股份有限公司 | Special-shaped copper pipe in external circle |
| WO2012024215A2 (en) * | 2010-08-16 | 2012-02-23 | National Oilwell Varco, L.P. | Reinforced stators and fabrication methods |
| CN203147249U (en) * | 2013-02-08 | 2013-08-21 | 泰州双羊精密无缝钢管有限公司 | Outwardly-circular-but-inwardly-flat oval special-shaped seamless steel pipe |
-
2013
- 2013-11-11 CN CN201310557803.2A patent/CN103604003A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080014342A1 (en) * | 2004-08-12 | 2008-01-17 | Schmidt + Clemens Gmbh + Co., Kg | Composite tube, method of producing for a composite tube, and use of a composite tube |
| CN201093155Y (en) * | 2007-09-29 | 2008-07-30 | 丹阳市巨贸康健器材有限公司 | Special-shaped round tube |
| CN201636448U (en) * | 2009-12-25 | 2010-11-17 | 浙江海亮股份有限公司 | Special-shaped copper pipe in external circle |
| WO2012024215A2 (en) * | 2010-08-16 | 2012-02-23 | National Oilwell Varco, L.P. | Reinforced stators and fabrication methods |
| CN203147249U (en) * | 2013-02-08 | 2013-08-21 | 泰州双羊精密无缝钢管有限公司 | Outwardly-circular-but-inwardly-flat oval special-shaped seamless steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |