CN110153190A - A kind of high stable piercing plug for seamless steel tubes - Google Patents
A kind of high stable piercing plug for seamless steel tubes Download PDFInfo
- Publication number
- CN110153190A CN110153190A CN201910509371.5A CN201910509371A CN110153190A CN 110153190 A CN110153190 A CN 110153190A CN 201910509371 A CN201910509371 A CN 201910509371A CN 110153190 A CN110153190 A CN 110153190A
- Authority
- CN
- China
- Prior art keywords
- mandril
- seamless steel
- interior angle
- screw
- steel tubes
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/04—Cooling or lubricating mandrels during operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
This application discloses a kind of high stable piercing plug for seamless steel tubes, including mandril, connection is threadably secured between the mandril outer wall and cylindrical cavity inner wall, the mandril axle center is formed with the inlet opening for being connected to the cylindrical cavity, it is axially fixed between the mandril and cylindrical body and is connected with multiple groups screw group, screw group described in every group includes the multiple interior angle screws circumferentially uniformly distributed along the mandril ring, each interior angle screw is axial perpendicular to the mandril and its extension line passes through the mandril axle center, the interior angle screw is formed with spray hole at axle center, the fluid hole for being connected to the spray hole is formed with inside the mandril, the interior angle screw outer end face is slightly below the periphery.The advantage of the invention is that since interior angle screw further fixes the mandril being connected through a screw thread with cylindrical body, it is therefore prevented that the loosening being threadedly coupled between mandril and cylindrical body will not all loosen between mandril and cylindrical body so no matter coming directly towards rotating forward or reversion.
Description
Technical field
This application involves the production of seamless steel pipe, in particular to a kind of high stable piercing plug for seamless steel tubes.
Background technique
Seamless steel pipe needs the connection by mandril and top when perforating, to perforate, mandril and top generally use screw thread
Connection, it is contemplated that top is constantly in rotary state, is traditionally arranged to be spiral shell of the top rotation direction as mandril and mandril
Line connects direction, will not just loosen during rotation in top in this way, although such method prevents mandril and top to perforate
When loosening, but when top block or occur other things need will top reversion retreat when, due to reversion be mandril with
Rotational direction is come directly towards, top is this may result in this way and is loosened with mandril, cause top that can not take out in hollow billet.
Summary of the invention
The purpose of the present invention is to provide a kind of high stable piercing plug for seamless steel tubes, with overcome the deficiencies in the prior art.
To achieve the above object, the present invention provides the following technical solutions.
The embodiment of the present application discloses a kind of high stable piercing plug for seamless steel tubes, including top ontology, and the top is originally
Body successively includes cylindrical body, the round estrade for being formed in the cylindrical end face, the circular cone alloy for being formed in the round estrade end face
Head, the circular cone drift angle of the circular cone alloy head are 45-70 °, are formed with rotary table cavity, the rotary table cavity inside the round estrade
It is formed with main support rod along axis direction from the cylindrical end face, is formed between the main support rod and the round estrade inner wall
There are more auxiliary support rods, the round estrade side wall ring is symmetrically formed with the spray holes of multiple perforations, the cylinder around axis body
Internal portion is formed with cylindrical cavity, and multiple through-holes being connected to are formed between the cylindrical cavity and the rotary table cavity, are also wrapped
Mandril is included, connection is threadably secured between the mandril outer wall and the cylindrical cavity inner wall, the mandril axle center is formed with
It is connected to the inlet opening of the cylindrical cavity, is axially fixed between the mandril and the cylindrical body and is connected with multiple groups screw group,
Screw group described in every group includes the multiple interior angle screws circumferentially uniformly distributed along the mandril ring, and each interior angle screw is vertical
In the mandril, axial and its extension line is by the mandril axle center, and the interior angle screw is formed with spray hole at axle center, institute
The fluid hole for being formed with inside mandril and being connected to the spray hole is stated, the interior angle screw outer end face is slightly below the cylinder body surface
Face.
Preferably, in above-mentioned high stable piercing plug for seamless steel tubes, the screw group is provided with two groups, described in every group
Screw group includes two interior angle screws.
Preferably, in above-mentioned high stable piercing plug for seamless steel tubes, each interior angle screw is consolidated with by screw thread
Surely the mandril and the cylindrical body are connected.
Preferably, in above-mentioned high stable piercing plug for seamless steel tubes, the circular cone drift angle is 65 °.
Preferably, in above-mentioned high stable piercing plug for seamless steel tubes, the round estrade and the cylindrical outer surface
It is respectively formed with high-temperature-resistant layer.
It is furthermore preferred that the high-temperature-resistant layer is in above-mentioned high stable piercing plug for seamless steel tubes with a thickness of 1-3mm.
Preferably, it in above-mentioned high stable piercing plug for seamless steel tubes, is set in the cylindrical cavity in the through hole
It is equipped with strainer.
It is furthermore preferred that the aperture of filter screen is less than the spray in above-mentioned high stable piercing plug for seamless steel tubes
Mist hole aperture.
Preferably, in above-mentioned high stable piercing plug for seamless steel tubes, the auxiliary support rod quantity is 13-19 root.
The advantage of the invention is that preventing since interior angle screw further fixes the mandril being connected through a screw thread with cylindrical body
The loosening being threadedly coupled between mandril and cylindrical body is stopped, so rotating forward or reversion no matter are come directly towards, between mandril and cylindrical body
It will not all loosen；And spray hole is formed at interior angle screw axle center, and since specification is identical, when liquid is sprayed on hollow billet inner wall
When, liquid can not only play cooling effect, but also the reaction force of liquid injection can make top keep stablizing, it is therefore prevented that
It shakes, improves the stability of top.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 show the schematic diagram of high stable piercing plug for seamless steel tubes in the specific embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in connection with fig. 1, high stable piercing plug for seamless steel tubes, including top ontology 100, top ontology 100 successively wrap
Include cylindrical body 110, the round estrade 120 for being formed in 110 end face of cylindrical body, the circular cone alloy head for being formed in 120 end face of round estrade
130, the circular cone drift angle of circular cone alloy head 130 is 45-70 °, is formed with rotary table cavity 121, rotary table cavity inside round estrade 120
121 are formed with main support rod 122 along axis direction from 110 end face of cylindrical body, between 120 inner wall of main support rod 122 and round estrade
More auxiliary support rods 123 are formed with, 120 side wall ring of round estrade is symmetrically formed with the spray holes 124 of multiple perforations around axis body,
Cylindrical cavity 111 is formed with inside cylindrical body 110, be formed between cylindrical cavity 111 and rotary table cavity 121 it is multiple be connected to it is logical
Hole 112 further includes mandril 300, is threadably secured connection, mandril 300 between 111 inner wall of 300 outer wall of mandril and cylindrical cavity
Axle center be formed with connection cylindrical cavity 111 inlet opening 310, be axially fixed between mandril 300 and cylindrical body 110 be connected with it is more
Group screw group, every group of screw group includes the multiple interior angle screws 320 circumferentially uniformly distributed along 300 ring of mandril, each interior angle screw
320 perpendicular to 300 axial direction of mandril and its extension line is by 300 axle center of mandril, and interior angle screw is formed with spray hole at 320 axle center
330, the fluid hole 340 of connection spray hole 330 is formed with inside mandril 300,320 outer end face of interior angle screw is slightly below cylindrical body
110 surfaces.
In the technical solution, since the mandril being connected through a screw thread being further fixed with cylindrical body due to interior angle screw,
Prevent the loosening being threadedly coupled between mandril and cylindrical body, so no matter come directly towards rotating forward or reversion, mandril and cylindrical body it
Between will not all loosen；And spray hole is formed at interior angle screw axle center, and since specification is identical, when liquid is sprayed on hollow billet inner wall
When, liquid can not only play cooling effect, but also the reaction force of liquid injection can make top keep stablizing, it is therefore prevented that
It shakes, improves the stability of top；Additionally, due to circular cone alloy head is used, the contact surface of steel duct can be reduced, thus
Reduce resistance, improves efficiency；It is the hollow structure with support inside round estrade, saves material, mitigates weight, pass through support
Bar decomposes suffered power, has utmostly played effect of resist compression；By the way that spray holes are arranged, lubricating fluid is sprayed from spray holes
Out, into layer protecting film between top and round steel, is formd, cooling effect is not only played, but also top is protected not to be destroyed,
Also steel pipe inner wall is protected not to be scratched.
Further, screw group is provided with two groups, and every group of screw group includes two interior angle screws 320.Each interior angle screw
320 connect mandril 300 and cylindrical body 110 with being threadably secured.
In the embodiment, every group of screw group preferably uses two interior angle screws for being in a straight line, passes through interior angle spiral shell
Nail interior angle will be tightened to connect other machinery between top and mandril, and interior angle screw end face will be lower than cylindrical outer surface
, it is therefore prevented that incised wound inner surface of tube body.
Further, circular cone drift angle is 65 °.
In the technical solution, by practice, apex angle is preferably 65 °, and effect is best.
Further, round estrade 120 and 110 outer surface of cylindrical body are respectively formed with high-temperature-resistant layer 200.High-temperature-resistant layer 200
With a thickness of 1-3mm.
In the technical solution, high temperature resistance is increased, to extend the service life of top.
Further, strainer 113 is provided at through-hole 112 in cylindrical cavity 111.113 aperture of strainer is less than spray holes
124 apertures.
In the technical solution, it is therefore prevented that the blocking of spray holes.
Further, auxiliary 123 quantity of support rod is 13-19 root.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of high stable piercing plug for seamless steel tubes, including top ontology, the top ontology successively include cylindrical body, are formed
In the cylindrical end face round estrade, be formed in the circular cone alloy head of the round estrade end face, the circle of the circular cone alloy head
Cone-apex angle is 45-70 °, is formed with rotary table cavity inside the round estrade, the rotary table cavity is from the cylindrical end face along axis
Heart direction is formed with main support rod, and more auxiliary support rods are formed between the main support rod and the round estrade inner wall, described
Round estrade side wall ring is symmetrically formed with the spray holes of multiple perforations around axis body, and cylinder sky is formed with inside the cylindrical body
Chamber is formed with multiple through-holes being connected between the cylindrical cavity and the rotary table cavity, which is characterized in that and it further include mandril,
Connection is threadably secured between the mandril outer wall and the cylindrical cavity inner wall, the mandril axle center is formed with described in connection
The inlet opening of cylindrical cavity is axially fixed between the mandril and the cylindrical body and is connected with multiple groups screw group, described in every group
Screw group includes the multiple interior angle screws circumferentially uniformly distributed along the mandril ring, and each interior angle screw is perpendicular to the top
Bar is axial and its extension line is by the mandril axle center, is formed with spray hole at interior angle screw axle center, in the mandril
Portion is formed with the fluid hole for being connected to the spray hole, and the interior angle screw outer end face is slightly below the periphery.
2. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that the screw group is provided with two
Group, screw group described in every group include two interior angle screws.
3. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that each interior angle screw with
It is threadably secured the connection mandril and the cylindrical body.
4. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that the circular cone drift angle is 65 °.
5. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that the round estrade and the circle
Cartridge outer surface is respectively formed with high-temperature-resistant layer.
6. high stable piercing plug for seamless steel tubes according to claim 5, which is characterized in that the high-temperature-resistant layer with a thickness of
1-3mm。
7. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that in institute in the cylindrical cavity
It states through hole and is provided with strainer.
8. high stable piercing plug for seamless steel tubes according to claim 7, which is characterized in that the aperture of filter screen is less than institute
State the spray holes aperture.
9. high stable piercing plug for seamless steel tubes according to claim 1, which is characterized in that the auxiliary support rod quantity is
13-19 root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509371.5A CN110153190A (en) | 2019-06-13 | 2019-06-13 | A kind of high stable piercing plug for seamless steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509371.5A CN110153190A (en) | 2019-06-13 | 2019-06-13 | A kind of high stable piercing plug for seamless steel tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110153190A true CN110153190A (en) | 2019-08-23 |
Family
ID=67628826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910509371.5A Pending CN110153190A (en) | 2019-06-13 | 2019-06-13 | A kind of high stable piercing plug for seamless steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110153190A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482461A (en) * | 2020-04-24 | 2020-08-04 | 燕山大学 | Automatic cooling water-cooling top along separate routes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202824109U (en) * | 2012-09-24 | 2013-03-27 | 聊城鑫鹏源金属制造有限公司 | One time piercing head for universal roll piercing mill |
| CN103658185A (en) * | 2013-11-28 | 2014-03-26 | 苏州踵力重型机械有限公司 | Efficient piercing plug for seamless steel pipes |
| CN103658184A (en) * | 2013-11-27 | 2014-03-26 | 海龙(张家港)实业有限公司 | High-strength seamless steel pipe piecing plug |
| CN204934202U (en) * | 2015-07-31 | 2016-01-06 | 湖州高林不锈钢管制造有限公司 | A kind of piercing plug for seamless steel tubes |
| JP2017013102A (en) * | 2015-07-03 | 2017-01-19 | Ｊｆｅスチール株式会社 | Manufacturing method of seamless steel pipe |
| CN207154404U (en) * | 2017-08-22 | 2018-03-30 | 江苏常宝普莱森钢管有限公司 | The axial adjusting device for roller of the anti-loosening roll stacks of mandrel bar loosening mill |
| CN208321615U (en) * | 2018-06-19 | 2019-01-04 | 张家港保税区恒隆钢管有限公司 | A kind of self-centering core pin of seamless steel pipe |
| CN210386968U (en) * | 2019-06-13 | 2020-04-24 | 南通市嘉业机械制造有限公司 | High-stability seamless steel pipe piercing plug |
-
2019
- 2019-06-13 CN CN201910509371.5A patent/CN110153190A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202824109U (en) * | 2012-09-24 | 2013-03-27 | 聊城鑫鹏源金属制造有限公司 | One time piercing head for universal roll piercing mill |
| CN103658184A (en) * | 2013-11-27 | 2014-03-26 | 海龙(张家港)实业有限公司 | High-strength seamless steel pipe piecing plug |
| CN103658185A (en) * | 2013-11-28 | 2014-03-26 | 苏州踵力重型机械有限公司 | Efficient piercing plug for seamless steel pipes |
| JP2017013102A (en) * | 2015-07-03 | 2017-01-19 | Ｊｆｅスチール株式会社 | Manufacturing method of seamless steel pipe |
| CN204934202U (en) * | 2015-07-31 | 2016-01-06 | 湖州高林不锈钢管制造有限公司 | A kind of piercing plug for seamless steel tubes |
| CN207154404U (en) * | 2017-08-22 | 2018-03-30 | 江苏常宝普莱森钢管有限公司 | The axial adjusting device for roller of the anti-loosening roll stacks of mandrel bar loosening mill |
| CN208321615U (en) * | 2018-06-19 | 2019-01-04 | 张家港保税区恒隆钢管有限公司 | A kind of self-centering core pin of seamless steel pipe |
| CN210386968U (en) * | 2019-06-13 | 2020-04-24 | 南通市嘉业机械制造有限公司 | High-stability seamless steel pipe piercing plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482461A (en) * | 2020-04-24 | 2020-08-04 | 燕山大学 | Automatic cooling water-cooling top along separate routes |
| CN111482461B (en) * | 2020-04-24 | 2021-07-16 | 燕山大学 | Automatic cooling water-cooling top along separate routes |
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