CN103521523A - Mandrel extension rod of tandem rolling machine - Google Patents
Mandrel extension rod of tandem rolling machine Download PDFInfo
- Publication number
- CN103521523A CN103521523A CN201310509319.2A CN201310509319A CN103521523A CN 103521523 A CN103521523 A CN 103521523A CN 201310509319 A CN201310509319 A CN 201310509319A CN 103521523 A CN103521523 A CN 103521523A
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- CN
- China
- Prior art keywords
- rod
- replacement portion
- extension rod
- projection
- rolling machine
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- 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.)
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Abstract
The invention discloses a mandrel extension rod of a tandem rolling machine. The mandrel extension rod of the tandem rolling machine comprises a rod body, a first replacing part, a second replacing part and a trapezoid-shaped block. A first protrusion is arranged on the first replacing part. First threads are arranged on the upper side and the lower side of the first protrusion. The first replacing portion is connected with the rod body through a first latch. One end of the second replacing part is provided with second threads. The second replacing part is connected with the trapezoid-shaped block through second threads. The second replacing part is connected with the rod body through a second latch. The mandrel extension rod of the tandem rolling machine can replace worn parts of the threads and thus, the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of extension rod, particularly a kind of tandem mill plug extension rod.
Background technology
In metallurgical industry, the operation of rolling is a main processes of stress metal processing, and tandem mill is a kind of can raising labour productivity and the advanced method of rolling and so on, its main feature is pricked the metal while among some frames, and verifies same putting to being rolled the capable shape of the certain section of final formation.Tandem mill plug extension rod in use for some time, because the wearing and tearing of screw thread generally can only be scrapped and process, can increase manufacturing cost like this.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of tandem mill plug extension rod, and it can replace the wearing part of screw thread, reduces like this manufacturing cost.
For solveing the technical problem, the invention provides a kind of tandem mill plug extension rod, it is characterized in that, it comprises the body of rod, the first replacement portion, the second replacement portion, trapezoid block, the first replacement portion is provided with first projection, the both sides up and down of the first projection are provided with the first screw thread, between the first replacement portion and the body of rod, by the first snap close, connect, one end of the second replacement portion is provided with the second screw thread, the second replacement portion is threaded by second with trapezoid block, between the second replacement portion and the body of rod, by the second snap close, is connected.
Preferably, the described body of rod is provided with one second projection and first groove, and the first replacement portion is provided with second groove, and the second replacement portion is provided with the 3rd projection, and the second projection is embedded in the second groove, and the 3rd projection is embedded in the first groove.
Preferably, described the second projection and the first groove lay respectively at the both sides of the body of rod.
Positive progressive effect of the present invention is: tandem mill plug extension rod of the present invention can be replaced the wearing part of screw thread, reduces like this manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of tandem mill plug extension rod of the present invention.
Fig. 2 is the structural representation of the body of rod in the present invention.
The specific embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As depicted in figs. 1 and 2, tandem mill plug extension rod of the present invention comprises the body of rod 1, the first replacement portion 2, the second replacement portion 3, trapezoid block 6, the first replacement portion 2 is provided with first projection 21, the both sides up and down of the first projection 21 are provided with the first screw thread 211, between the first replacement portion 2 and the body of rod 1, by the first snap close 4, connect, one end of the second replacement portion 3 is provided with the second screw thread 31, the second replacement portion 3 is connected by the second screw thread 31 with trapezoid block 6, between the second replacement portion 3 and the body of rod 1, by the second snap close 5, is connected.
The body of rod 1 is provided with 11 and first grooves 12 of one second projection, the first replacement portion 2 is provided with second groove 22, the second replacement portions 3 and is provided with the 3rd projection 32, the second projections 11 and is embedded in the second groove 22, the 3rd projection 32 is embedded in the first groove 12, convenient for assembly like this.11 and first grooves 12 of the second projection lay respectively at the both sides of the body of rod 1.
After the first screw thread and the second thread abrasion, the first replacement portion and the second replacement portion to be replaced by the first snap close and the second snap close respectively, tandem mill plug extension rod of the present invention like this can be replaced the wearing part of screw thread, reduces like this manufacturing cost.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, do not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (3)
1. a tandem mill plug extension rod, it is characterized in that, it comprises the body of rod, the first replacement portion, the second replacement portion, trapezoid block, the first replacement portion is provided with first projection, the both sides up and down of the first projection are provided with the first screw thread, between the first replacement portion and the body of rod, by the first snap close, connect, and one end of the second replacement portion is provided with the second screw thread, the second replacement portion is threaded by second with trapezoid block, between the second replacement portion and the body of rod, by the second snap close, is connected.
2. tandem mill plug extension rod as claimed in claim 1, it is characterized in that, the described body of rod is provided with one second projection and first groove, the first replacement portion is provided with second groove, the second replacement portion is provided with the 3rd projection, the second projection is embedded in the second groove, and the 3rd projection is embedded in the first groove.
3. tandem mill plug extension rod as claimed in claim 2, is characterized in that, described the second projection and the first groove lay respectively at the both sides of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509319.2A CN103521523A (en) | 2013-10-25 | 2013-10-25 | Mandrel extension rod of tandem rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509319.2A CN103521523A (en) | 2013-10-25 | 2013-10-25 | Mandrel extension rod of tandem rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103521523A true CN103521523A (en) | 2014-01-22 |
Family
ID=49924080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310509319.2A Pending CN103521523A (en) | 2013-10-25 | 2013-10-25 | Mandrel extension rod of tandem rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103521523A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001300607A (en) * | 2000-04-17 | 2001-10-30 | Nippon Steel Corp | Plug for manufacturing steel tube and its direction for use |
| JP2009018347A (en) * | 1997-02-12 | 2009-01-29 | Cie Europeenne Du Zirconium-Cezus | Method for manufacturing guide tube of nuclear reactor fuel assembly, mandrel for forming guide tube and guide tube obtained |
| CN201832992U (en) * | 2010-10-16 | 2011-05-18 | 韶关市富洋粉末冶金有限公司 | Power metallurgical shaping mandrel |
| 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 |
| CN203494889U (en) * | 2013-10-25 | 2014-03-26 | 江苏南山冶金机械制造有限公司 | Continuous mill core rod extension rod |
-
2013
- 2013-10-25 CN CN201310509319.2A patent/CN103521523A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009018347A (en) * | 1997-02-12 | 2009-01-29 | Cie Europeenne Du Zirconium-Cezus | Method for manufacturing guide tube of nuclear reactor fuel assembly, mandrel for forming guide tube and guide tube obtained |
| JP2001300607A (en) * | 2000-04-17 | 2001-10-30 | Nippon Steel Corp | Plug for manufacturing steel tube and its direction for use |
| CN201832992U (en) * | 2010-10-16 | 2011-05-18 | 韶关市富洋粉末冶金有限公司 | Power metallurgical shaping mandrel |
| 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 |
| CN203494889U (en) * | 2013-10-25 | 2014-03-26 | 江苏南山冶金机械制造有限公司 | Continuous mill core rod extension rod |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |