CN201940417U - Connecting device for core pin and mandrel of rolling mill - Google Patents
Connecting device for core pin and mandrel of rolling mill Download PDFInfo
- Publication number
- CN201940417U CN201940417U CN2010206649982U CN201020664998U CN201940417U CN 201940417 U CN201940417 U CN 201940417U CN 2010206649982 U CN2010206649982 U CN 2010206649982U CN 201020664998 U CN201020664998 U CN 201020664998U CN 201940417 U CN201940417 U CN 201940417U
- Authority
- CN
- China
- Prior art keywords
- transition conduit
- mandrel
- plug
- core pin
- core bar
- 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 connecting device for a core pin and a mandrel of a rolling mill, which belongs to connecting equipment and structurally comprises the core pin, the mandrel and a transitional tube. The transitional tube is disposed between the core pin and the mandrel and consists of a primary transitional tube and a secondary transitional tube, the primary transitional tube is connected with the secondary transitional tube in a threaded manner, the primary transitional tube is connected with the core pin in a welded manner, and the secondary transitional tube is connected with the mandrel in a threaded manner. Compared with the prior art, the connecting device for the core pin and the mandrel of a rolling mill has the advantages that the core pin and the transitional tube are still in welding connection when the mandrel is replaced, the mandrel can be replaced conveniently, and the like. Accordingly, the connecting device has excellent popularization and application values.
Description
Technical field
The utility model relates to a kind of jockey, especially a kind of milling train core bar and plug jockey.
Background technology
The milling train core bar adopts transition conduit to connect with being connected of plug at present, and transition conduit adopts welding manner to be connected with core bar, adopts with being connected of plug to be threaded.Plug is a key component of determining rolling back copper pipe internal diameter in the milling train, when rolling with this as the standard of determining the copper pipe inwall, the frequency height is changed in wearing and tearing easily, being threaded between transition conduit and plug needs frequent dismounting, being threaded is easy to damage.Need disconnect when changing transition conduit and being welded to connect of core bar, change inconvenient.At present, good solution is not also arranged.
The utility model content
Technical assignment of the present utility model is to provide a kind of milling train core bar and plug jockey at above-mentioned deficiency of the prior art, when this milling train core bar and plug jockey have the plug of replacing, do not need to disconnect being welded to connect of core bar and transition conduit, change characteristics easily.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises core bar, plug and transition conduit, described transition conduit is arranged between core bar and the plug, described transition conduit comprises one-level transition conduit and secondary transition conduit, between described one-level transition conduit and the secondary transition conduit by being threaded, adopt welding manner to be connected between described one-level transition conduit and the core bar, between described secondary transition conduit and the plug by being threaded.
Milling train core bar of the present utility model is compared with prior art with the plug jockey, has following outstanding beneficial effect: be provided with the two-stage transition conduit between plug and the core bar, plug often weares and teares when changing, can not cause damage to the one-level transition conduit, only can cause damage, only need to change the secondary transition conduit and get final product, not need to disconnect being welded to connect of core bar and one-level transition conduit the internal thread of secondary transition conduit, it is convenient to change, and characteristics such as reduce cost.
Description of drawings
Accompanying drawing 1 is the structural representation of milling train core bar and plug jockey;
Description of reference numerals: 1, core bar, 2, the one-level transition conduit, 3, the secondary transition conduit, 4, plug.
The specific embodiment
Explain with reference to 1 pair of milling train core bar of the present utility model of Figure of description and below the plug jockey work.
Milling train core bar of the present utility model and plug jockey, its structure comprises core bar 1, plug 4 and transition conduit, described transition conduit is arranged between core bar 1 and the plug 4, described transition conduit comprises one-level transition conduit 2 and secondary transition conduit 3, between described one-level transition conduit 2 and the secondary transition conduit 3 by being threaded, adopt welding manner to be connected between described one-level transition conduit 2 and the core bar 1, between described secondary transition conduit 3 and the plug 4 by being threaded.
When plug 4 frequent wearing and tearing need to change, plug 4 is threaded with secondary transition conduit 3, the frequent plug 4 of changing can cause damage to the internal thread of secondary transition conduit 3, one-level transition conduit 2 is damaged, only needing to change secondary transition conduit 3 gets final product, can frequently not disconnect being welded to connect between one-level transition conduit 2 and the core bar 1, it is convenient to change, and reduces cost.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (1)
1. milling train core bar and plug jockey, comprise core bar, plug and transition conduit, described transition conduit is arranged between core bar and the plug, it is characterized in that: described transition conduit comprises one-level transition conduit and secondary transition conduit, between described one-level transition conduit and the secondary transition conduit by being threaded, adopt welding manner to be connected between described one-level transition conduit and the core bar, between described secondary transition conduit and the plug by being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206649982U CN201940417U (en) | 2010-12-17 | 2010-12-17 | Connecting device for core pin and mandrel of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206649982U CN201940417U (en) | 2010-12-17 | 2010-12-17 | Connecting device for core pin and mandrel of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940417U true CN201940417U (en) | 2011-08-24 |
Family
ID=44467768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206649982U Expired - Fee Related CN201940417U (en) | 2010-12-17 | 2010-12-17 | Connecting device for core pin and mandrel of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493173A (en) * | 2016-05-06 | 2017-03-15 | 鑫鹏源智能装备集团有限公司 | A kind of connection push rod and processing method for hot rolling |
| CN107321793A (en) * | 2017-08-16 | 2017-11-07 | 陈振伟 | One kind is connected device |
-
2010
- 2010-12-17 CN CN2010206649982U patent/CN201940417U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493173A (en) * | 2016-05-06 | 2017-03-15 | 鑫鹏源智能装备集团有限公司 | A kind of connection push rod and processing method for hot rolling |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20131217 |