CN2186611Y - Inner hole round-rolling device for steel elbow and straight pipe - Google Patents
Inner hole round-rolling device for steel elbow and straight pipe Download PDFInfo
- Publication number
- CN2186611Y CN2186611Y CN 93224244 CN93224244U CN2186611Y CN 2186611 Y CN2186611 Y CN 2186611Y CN 93224244 CN93224244 CN 93224244 CN 93224244 U CN93224244 U CN 93224244U CN 2186611 Y CN2186611 Y CN 2186611Y
- Authority
- CN
- China
- Prior art keywords
- inner hole
- rolling
- round
- rolling device
- straight pipe
- 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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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses an inner hole round-rolling device for eliminating the ovality of an inner hole of a steel tube, which is composed of a body 1 and a rolling body 2, wherein the body 1 is provided with a rolling groove 3, and the rolling body 2 is arranged in the rolling groove 3. The utility model has the advantages of simple structure, easy use and high machining accuracy. The ovality of the inner hole of the treated steel tube is less than the specified requirement of 1%.
Description
The utility model relates to a kind of instrument of machining, belongs to the instrument of eliminating the steel tube inner hole ovality.
All there is ovality in various degree in the steel pipe of general Rolling Production.The steel pipe that is used for the pneumatic transmission sample stops up for preventing sample, and its endoporus ovality regulation must be lower than 1%.In bend pipe is made, satisfy this regulation, very difficulty.Certain factory adopts tube expander at present, though can reach this requirement, because process equipment is numerous, the process-cycle is long, machining accuracy is low, the processing investment is high, and therefore inconvenience is promoted.
The purpose of this utility model is to provide a kind of endoporus round as a ball device.It simple in structure, easy to use, investment is cheap, and machining accuracy height.Steel tube inner hole ovality after treatment is significantly less than 1% set quota.
The utility model can be realized in the following manner: make cylindrical body earlier by pipe diameter, its diameter should be less than pipe diameter.Two is reserved the littler cylindrical cap of diameter and is drilled with the hole.Rolling groove is arranged on body, refill rolling element the round as a ball device of endoporus.This device total length is not limit, but must be less than 2.5 times of pipe diameter; Its maximum outside diameter should be suitable with pipe diameter.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail;
Fig. 1 is the utility model profilograph
The utility model is made up of body 1 and rolling element 2.Rolling groove 3 is arranged on the body 1, with rolling element 2, be contained in the rolling groove 3, as shown in Figure 1.During use the utility model is put into the steel pipe 4 that needs correction, make the displacement that produces translation and rotation between round as a ball device of endoporus and the steel pipe 4 simultaneously by the external force that pushes away or draw.Body 1 drives rolling element 2 in displacement, thereby the inwall of 2 pairs of steel pipes 4 of rolling element carries out roll extrusion, eliminates the ovality of its endoporus thus.
Rolling element 2 materials are not limit, but its intensity must be higher than steel pipe 4 and energy is wear-resisting.
Claims (3)
1, a kind of round as a ball device of endoporus that is used for steel bend pipe and straight tube is characterized in that being made up of body (1) and rolling element (2), and rolling groove (3) is arranged on the body (1), and rolling element (2) is contained in the rolling groove (3).
2, the round as a ball device of endoporus according to claim 1 is characterized in that its length must be less than 2.5 times of steel pipe (4) internal diameter; Its maximum outside diameter should be suitable with steel pipe (4) internal diameter.
3, the round as a ball device of endoporus according to claim 1 is characterized in that the intensity of rolling element (2), must be higher than steel pipe (4) and can be wear-resisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224244 CN2186611Y (en) | 1993-09-15 | 1993-09-15 | Inner hole round-rolling device for steel elbow and straight pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93224244 CN2186611Y (en) | 1993-09-15 | 1993-09-15 | Inner hole round-rolling device for steel elbow and straight pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186611Y true CN2186611Y (en) | 1995-01-04 |
Family
ID=33802326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93224244 Expired - Fee Related CN2186611Y (en) | 1993-09-15 | 1993-09-15 | Inner hole round-rolling device for steel elbow and straight pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186611Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079039A (en) * | 2010-12-28 | 2011-06-01 | 山西平阳重工机械有限责任公司 | Processing method for cladding inner walls of cylindrical workpieces by using stainless steel material |
| CN113617886A (en) * | 2021-10-12 | 2021-11-09 | 江苏鑫鼎瑞运动用品科技有限公司 | Local deformation removing device based on dumbbell rack body |
-
1993
- 1993-09-15 CN CN 93224244 patent/CN2186611Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079039A (en) * | 2010-12-28 | 2011-06-01 | 山西平阳重工机械有限责任公司 | Processing method for cladding inner walls of cylindrical workpieces by using stainless steel material |
| CN102079039B (en) * | 2010-12-28 | 2012-07-25 | 山西平阳重工机械有限责任公司 | Processing method for cladding inner walls of cylindrical workpieces by using stainless steel material |
| CN113617886A (en) * | 2021-10-12 | 2021-11-09 | 江苏鑫鼎瑞运动用品科技有限公司 | Local deformation removing device based on dumbbell rack body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |