CN201357166Y - Core rod of tube rolling machine - Google Patents
Core rod of tube rolling machine Download PDFInfo
- Publication number
- CN201357166Y CN201357166Y CNU2009201432007U CN200920143200U CN201357166Y CN 201357166 Y CN201357166 Y CN 201357166Y CN U2009201432007 U CNU2009201432007 U CN U2009201432007U CN 200920143200 U CN200920143200 U CN 200920143200U CN 201357166 Y CN201357166 Y CN 201357166Y
- Authority
- CN
- China
- Prior art keywords
- rod
- connecting rod
- work
- core rod
- tube rolling
- 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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Abstract
The utility model discloses a core rod of a tube rolling machine, which comprises a working rod, a connecting rod and a tail rod, which are sequentially connected into a whole; the connecting rod is hollow; the end part of the working rod is inserted and arranged at the front end of the hollow rod; and the end part of the tail rod is inserted in the rear end of the hollow rod and connected therewith into a whole. The core rod changes the current status of high consumption of the core rod of an ACCU-ROLL machine, improves the utilization rate of the core rod, greatly reduces the consumption of tube rolling dies and saves the production cost.
Description
Technical field:
The utility model relates generally to a kind of mandrel bar.
Background technology:
Along with the develop rapidly of China's steel pipe industry, the production equipment of steel pipe is also constantly upgrading.The ACCU-ROLL pipe mill is exactly a kind of tube rolling unit commonly used, and the retained mandrel that matches with this milling train in process of production, because of the structure of plug influences, consumes very big.
The utility model content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of mandrel bar to be provided, and it has solved the big present situation of ACCU-ROLL mandrel bar consumption, has improved the utilization rate of plug.Reduce the mould consumption of tube rolling widely, saved production cost.
The utility model is achieved through the following technical solutions:
Mandrel bar is characterized in that: include the work rod, connecting rod and the foot piece that connect as one successively, described connecting rod is a hollow stem, and the work stick end is plugged in the hollow stem front end, and the foot piece end is inserted the hollow stem rear end and is connected to one with it.
Described mandrel bar is characterized in that: work stick end, connecting rod front end have the pin hole of mutual coupling, have pinboard to be inserted in the pin hole on work rod and the connecting rod and make it to be assembled into one; Described foot piece end is inserted the hollow stem tail end and is welded as a whole with it.
Described mandrel bar is characterized in that: be connected by the screw thread assembling between described work rod and connecting rod.
Can freely split between work rod of the present utility model and the connecting rod, connecting rod and foot piece are reusable, thus behind the utility model rapid wear,, the rod of will working changes new work rod as long as pulling down, just can continue to use.
The length of described work rod has only effective working position of former plug long, processes more conveniently, and the heat treatment cost is lower, helps transportation.
The employed mould steel of the utility model has only 1/4th of former plug, has saved the usefulness material and the use cost of mould steel widely.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that A is to schematic cross-section.
The specific embodiment:
Mandrel bar, include the work rod 1, connecting rod 2 and the foot piece 3 that connect as one successively, connecting rod 2 is a hollow stem, work excellent 1 end, connecting rod 2 front ends have mutual coupling pin hole, work after excellent 1 end inserts connecting rod 2, in the pin hole on pinboard 4 insertion work rod 1 and the connecting rod 2, make work rod 1, connecting rod 2 be assembled into one.The end of foot piece 3 is inserted connecting rod 2 rear ends and is welded as a whole with it.
Claims (3)
1, mandrel bar is characterized in that: include the work rod, connecting rod and the foot piece that connect as one successively, described connecting rod is a hollow stem, and the work stick end is plugged in the hollow stem front end, and the foot piece end is inserted the hollow stem rear end and is connected to one with it.
2, mandrel bar according to claim 1 is characterized in that: work stick end, connecting rod front end have the pin hole of mutual coupling, have pinboard to be inserted in the pin hole on work rod and the connecting rod and make it to be assembled into one; Described foot piece end is inserted the hollow stem tail end and is welded as a whole with it.
3, mandrel bar according to claim 1 is characterized in that: be connected by the screw thread assembling between described work rod and connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432007U CN201357166Y (en) | 2009-03-03 | 2009-03-03 | Core rod of tube rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201432007U CN201357166Y (en) | 2009-03-03 | 2009-03-03 | Core rod of tube rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357166Y true CN201357166Y (en) | 2009-12-09 |
Family
ID=41422924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201432007U Expired - Fee Related CN201357166Y (en) | 2009-03-03 | 2009-03-03 | Core rod of tube rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357166Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091719A (en) * | 2010-12-07 | 2011-06-15 | 宝钢集团常州轧辊制造公司 | Limiting mandrel for mandrel pipe mill and manufacturing method thereof |
| CN102240889A (en) * | 2011-05-03 | 2011-11-16 | 天津钢管集团股份有限公司 | Manufacturing method for continuously rolling seamless steel pipe by using hollow mandril |
| CN104117540A (en) * | 2014-07-30 | 2014-10-29 | 中国重型机械研究院股份公司 | Core rod of large dual-roller cold pilgering mill |
| CN107321793A (en) * | 2017-08-16 | 2017-11-07 | 陈振伟 | One kind is connected device |
-
2009
- 2009-03-03 CN CNU2009201432007U patent/CN201357166Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091719A (en) * | 2010-12-07 | 2011-06-15 | 宝钢集团常州轧辊制造公司 | Limiting mandrel for mandrel pipe mill and manufacturing method thereof |
| CN102240889A (en) * | 2011-05-03 | 2011-11-16 | 天津钢管集团股份有限公司 | Manufacturing method for continuously rolling seamless steel pipe by using hollow mandril |
| CN102240889B (en) * | 2011-05-03 | 2012-11-21 | 天津钢管集团股份有限公司 | Manufacturing method for continuously rolling seamless steel pipe by using hollow mandril |
| CN104117540A (en) * | 2014-07-30 | 2014-10-29 | 中国重型机械研究院股份公司 | Core rod of large dual-roller cold pilgering mill |
| CN104117540B (en) * | 2014-07-30 | 2016-03-16 | 中国重型机械研究院股份公司 | A kind of mandrel stem of large-scale double-roller cold pilger mill |
| CN107321793A (en) * | 2017-08-16 | 2017-11-07 | 陈振伟 | One kind is connected device |
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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: 20091209 Termination date: 20140303 |