CN202516843U - Connecting device between core bar and core rod of two-roller Pilger rolling mill - Google Patents
Connecting device between core bar and core rod of two-roller Pilger rolling mill Download PDFInfo
- Publication number
- CN202516843U CN202516843U CN2012201237059U CN201220123705U CN202516843U CN 202516843 U CN202516843 U CN 202516843U CN 2012201237059 U CN2012201237059 U CN 2012201237059U CN 201220123705 U CN201220123705 U CN 201220123705U CN 202516843 U CN202516843 U CN 202516843U
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- CN
- China
- Prior art keywords
- jockey
- core bar
- plug
- connecting device
- rolling
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a connecting device between a core bar and a core rod of a two-roller Pilger rolling mill. One end of the connecting device is in an internal threaded structure matched with a core rod, the other end of the connecting device is in an internal threaded structure matched with a core bar, the middle of the connecting device is provided with a middle cavity, the middle cavity is communicated with the internal threaded structure arranged at one end of the core rod, in addition, one end of the connecting rod connected with the core bar is provided with a plurality of lubricating holes, inside openings of the lubricating holes are connected with a middle cavity of the connecting device, and outside openings of the lubricating holes are arranged on the surface of the connecting device. The middle part of the connecting device is provided with a lubricating cavity and a lubricating passage, and a deformation region at the inner surface of a pipe blank can be effectively lubricated, so the inner surface quality of the rolled pipe blank is improved, the core bar copper sticking is reduced, and the service life of the core bar is prolonged.
Description
Technical field
The utility model relates to and belongs to the Machining Technology field, relates in particular to a kind of plug of two roller Pilger milling trains and the jockey between the core bar.
Background technology
In the production process of copper and copper alloy, two roller Pilger milling trains are a kind of equipment of extensive use.The milling train plug is the shaping jig of rolling pipe endoporus; The rolling frequency of modern milling train is 60-120 time/minute; Plug is bearing great rolling impact force action in the operation of rolling, the surface is prone to wear and tear, glue the fault of copper and fracture, need often change.In the drawn and rolled tube production process, need be lubricated the inner surface of pipe, to reduce rolling friction, prevent that plucking and rolling crack from appearring in internal surface of bloom, improve the inner surface quality of drawn and rolled tube.Reasonably lubricated service life to the raising plug, reduce the rolling process production cost, improving Rolling Production efficient all has great help.Rolling as far as high speed Pilger milling train or overlength pipe, because mill speed distance fast, that lubricating fluid need be carried is big, how rolling pipe inwall is carried out even, an amount of lubricating is the difficult problem of the puzzlement copper and the copper-alloy pipe-material operation of rolling always.During the lubricating fluid undersupply, plug easy fracture, sticking copper cause rolling pipe to scrap, and increase production cost, and rolling plug is changed inconvenient.When the lubricating fluid quantity delivered was excessive, excessive lubricating fluid also can overflow through the tubing head, caused equipment and facility floor to pollute.Design under irrational situation at lubricating arrangement, the operation of rolling even rolling deformation district lack of lubrication can occur, and the phenomenon of a large amount of lubricating fluid outflows appears in tubing end simultaneously.
The utility model content
The utility model is exactly to above-mentioned deficiency, proposes a kind of plug of two roller Pilger milling trains and the jockey between the core bar, and the insufficient lubrication and the plug that solve the operation of rolling are changed inconvenient problem.
Above-mentioned purpose realizes through following proposal:
A kind of plug of two roller Pilger milling trains and the jockey between the core bar; It is characterized in that; One end of said jockey is and the female thread structure of core bar coupling that the other end is and the female thread structure of plug coupling that the middle part of said jockey is provided with middle cavities; Should communicate with the female thread structure of core bar one end by middle cavities; And an end that connects with said plug at said jockey has a plurality of lubrication holes, and the inside opening of said lubrication hole links to each other with the said middle cavities of jockey, and the outside opening of said lubrication hole is located at the jockey surface.
According to above-mentioned jockey, it is characterized in that said lubrication hole is more than 3 or 3.
According to above-mentioned jockey, it is characterized in that the lubrication hole passage is to said plug tilt.
According to above-mentioned jockey, it is characterized in that hexagon is processed in the outside, middle part of jockey.
The beneficial effect of the utility model: the jockey structure of using the utility model; Can rapid coupling, conveniently fast disassembling; When handling plug wearing and tearing, sticking copper and fracture defect, the fast quick-detach of handled easily personnel, change and the new plug of rapid coupling fast; Lubricating cavity and lubrication channel that jockey middle part is offered can effectively lubricating internal surface of bloom deformed areas, thereby improve rolling pipe inner surface quality, reduce the sticking copper of plug, improve plug service life.Owing to adopt rapid coupling, be easy to the tool structure of detachable, can shorten rolling non-cutting time greatly, improve the production capacity and the production efficiency of rolling system.
Description of drawings
Fig. 1 is to use the jockey of the utility model to connect the sketch map of plug and core bar;
Fig. 2 is the enlarged drawing of jockey among Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to view;
Fig. 4 is the stereogram of the utility model.
The specific embodiment
A kind of plug of two roller Pilger milling trains and the jockey between the core bar, this device comprise that jockey 2 three parts between plug 1, core bar 3 and plug and the core bar constitute.See Fig. 1.All adopt between plug 1 and jockey 2, core bar 3 and the jockey 2 and be easy to connect, be easy to detachable screw connection structure (mating) respectively at core bar 2 and plug 1.Convenient rapid coupling in process of production, dismounting and replacing.
Plug 1 is the filled circles stage body of band certain taper, material comply with rolling alloy different and different, select GCr15 for use during general rolling red copper, select H13 when rolling BFe10-1-1, BFe10-1-2, BFe30-1-1, HSn70-1, HAl77-2 alloy for use.Core bar 3 adopts the heavy wall gapless stainless steel tube to make.It is 30CrMo that jockey 2 is selected material for use.Plug 1, jockey 2, core bar 3 are installed on the same axis, and this axis overlaps with rolling centerline.
Plug 1 is the shaping jig of rolling pipe endoporus; 3 pairs of rolling plugs of core bar play to be sent to and positioning action; When plug 1 was in the correct position in the roll annular distance (not shown), the pass that is made up of plug 1 and roll annular distance played the effect of moulding, sizing, fixed tube base wall thickness to pipe.Core bar 3 is a hollow structure, in the operation of rolling, through cavities in the core bar 3 jockey 2 is carried lubricating fluid.The two ends of jockey 2 are interior connection screw thread, fasten as one with core bar 3 through thread connection and plug 1.
The end 6 that jockey 2 connects with core bar is hollow female thread structure, and cavities 3a links to each other in its cavity open side and the core bar 3, and the lubricating fluid that is transported by core bar can be delivered to jockey 2 smoothly.See Fig. 2.
The end 4 that jockey 2 connects with plug 1 has 3 and above lubrication hole.The inside opening of this lubrication hole links to each other with the middle cavities of jockey 2, and outside opening is located at jockey 2 surfaces, and lubrication hole passage 5 is to plug 1 tilt, and the axis of lubrication hole passage 5 becomes 30-50 ° of angle (see figure 3) with jockey 2 heart portion axis.In the operation of rolling, can effectively lubricating internal surface of bloom deformed area by the lubricating fluid of lubrication hole ejection.
The hexagon (see figure 4) is processed in the outside, middle part of jockey 2.In the operation of rolling, owing to plug 1 is bearing great rolling impact force action, the surface is prone to wear and tear, glue copper and fracture defect, and the effect that designs this hexagonal region is convenient plug and the core bar when handling failure, dismantled.
The concrete course of work is following:
Before the operation, utilize jockey 2 that core bar 3 and plug 1 are connected into an integral body, with core bar, jockey, plug is in place and adjust to suitable position.Behind the pipe material loading, the end of core bar is connected with the lubricating fluid conveying mechanism of milling train, the supply lubricating fluid can be rolled operation.When wearing and tearing, sticking copper and fracture defect appear in plug; To install from the milling train annular distance and withdraw from, and utilize pipe grippers that plug and core bar are fixed, and utilize adjustable wrench to clamp the hexagonal region at jockey 2 middle parts; Reverse rotation (direction of rotation of plug is opposite when rolling) removable plug and core bar; After changing new plug, stationary core rod and core bar are rotated in the forward the middle part hexagonal region (direction of rotation of plug is identical when rolling) of jockey 2; Be tightened to an integral body to plug 1, jockey 2, core bar 3, and accomplished the replacing process.
Use the jockey structure of the utility model, can rapid coupling, conveniently fast disassembling, when handling plug wearing and tearing, sticking copper and fracture defect, the fast quick-detach of handled easily personnel, change and the new plug of rapid coupling fast; Lubricating cavity and lubrication channel that jockey middle part is offered can effectively lubricating internal surface of bloom deformed areas, thereby improve rolling pipe inner surface quality, reduce the sticking copper of plug, improve plug service life.Owing to adopt rapid coupling, be easy to the tool structure of detachable, can shorten rolling non-cutting time greatly, improve the production capacity and the production efficiency of rolling system.
Claims (4)
1. the plug of a roller Pilger milling train and the jockey between the core bar; It is characterized in that; One end of said jockey is and the female thread structure of core bar coupling that the other end is and the female thread structure of plug coupling that the middle part of said jockey is provided with middle cavities; Should communicate with the female thread structure of core bar one end by middle cavities; And an end that connects with said plug at said jockey has a plurality of lubrication holes, and the inside opening of said lubrication hole links to each other with the said middle cavities of jockey, and the outside opening of said lubrication hole is located at the jockey surface.
2. jockey according to claim 1 is characterized in that, said lubrication hole is more than 3 or 3.
3. jockey according to claim 2 is characterized in that, the lubrication hole passage is to said plug tilt.
4. according to the described jockey of one of claim 1-3, it is characterized in that hexagon is processed in the outside, middle part of jockey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201237059U CN202516843U (en) | 2012-03-29 | 2012-03-29 | Connecting device between core bar and core rod of two-roller Pilger rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201237059U CN202516843U (en) | 2012-03-29 | 2012-03-29 | Connecting device between core bar and core rod of two-roller Pilger rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202516843U true CN202516843U (en) | 2012-11-07 |
Family
ID=47099813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201237059U Expired - Fee Related CN202516843U (en) | 2012-03-29 | 2012-03-29 | Connecting device between core bar and core rod of two-roller Pilger rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202516843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639204A (en) * | 2013-12-24 | 2014-03-19 | 湖州华祥不锈钢管有限公司 | Core rod for cold rolling technology |
| CN107321793A (en) * | 2017-08-16 | 2017-11-07 | 陈振伟 | One kind is connected device |
-
2012
- 2012-03-29 CN CN2012201237059U patent/CN202516843U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639204A (en) * | 2013-12-24 | 2014-03-19 | 湖州华祥不锈钢管有限公司 | Core rod for cold rolling technology |
| 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: 20121107 Termination date: 20150329 |
|
| EXPY | Termination of patent right or utility model |