CN208288672U - A kind of Mannesmann piercing mill - Google Patents
A kind of Mannesmann piercing mill Download PDFInfo
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- CN208288672U CN208288672U CN201820354637.4U CN201820354637U CN208288672U CN 208288672 U CN208288672 U CN 208288672U CN 201820354637 U CN201820354637 U CN 201820354637U CN 208288672 U CN208288672 U CN 208288672U
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- piercing mill
- mannesmann piercing
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Abstract
A kind of Mannesmann piercing mill, the Mannesmann piercing mill are combined by fuselage sections and perforation running part, are mainly made of base, mandril, roll and main motor etc.；The Mannesmann piercing mill fuselage sections are made of base, blow tank and pusher etc.；The Mannesmann piercing mill perforation running part includes motor, mandril, roll and top etc.；The roll and top is arranged in base；The roll is placed up and down, and opposite top is symmetrical, avoids the abrasion to top；The guide plate plays the guiding role of pipe and hollow billet, stablizes roll line, closed type outer ring, limitation hollow billet transversely deforming.The utility model is ingenious in design, effectively solution problems of the prior art, suitable for being widely popularized.
Description
Technical field
The present invention relates to rolling machinery technical field more particularly to a kind of Mannesmann piercing mills.
Background technique
Mannesmann piercing mill is a kind of now widely used equipment for carrying out once perforated to seamless steel pipe, one when using
As pierced shell is placed on two relative to the tilted-putted driving rollers of roll line, two fixed guide plates and one
It is located in the middle in the ring seal pass of servo-actuated top composition and is rolled.Due to the roll of general Mannesmann piercing machine
Left and right is placed, and guide plate is placed up and down, and pierced shell will receive biggish material stress during the rolling process, lead to pierced shell
Wall thickness uniformity is lower, while the load on piercing mandrel plug is higher, and long-time service can generate biggish abrasion to top, influences
The service life of punch.
Chinese invention patent (201410558310.5 applying date 2014.10.21 of application number) discloses a kind of four-roller
Mannesmann piercing mill, there are four cone-shaped roll, four cone-shaped rolls uniformly to divide for 90 ° along rolled piece center for four-roller Mannesmann piercing mill arrangement
Cloth；Every two cone-shaped roll partners work cone-shaped roll in four cone-shaped rolls；Two pairs of spacing for making cone-shaped roll roll surface
From than being 1.06~1.09, four cone-shaped rolls have respective individual driving power device；The rotation side of four cone-shaped rolls
To identical.Cone-shaped roll connects shaft coupling, shaft coupling tooth connection roller box, and gear-box connects motor, and cone-shaped roll passes through pressure dress
It sets, connects rack.Driving power device is made of permanent magnet synchronous torque motor and bevel gear box.The four-roller rotary piercing machine has master
The top of dynamic rotation.
Chinese utility model patent (201220010283.4 applying date 2012.01.11 of application number) discloses one kind
A kind of two roller Mannesmann piercing mill rolls, are related to hot rolled seamless steel tube unit equipment technical field, including the entrance to link together
Cone and outlet cone, the approach cone are divided into approach cone first segment and approach cone second segment, and 1/2 cone angle of approach cone first segment is
16.5 ° -17.5 °, 1/2 cone angle of approach cone second segment is 17.0 ° -18.0 °.
Summary of the invention
Mannesmann piercing mill is extremely important to the production of China's seamless steel pipe, because perforation is to produce the important change of seamless steel pipe
Shape process.When perforating deformation, there are many factor for influencing perforation procedure, among these include: roll, top, guide plate, entrance cone angle
With the design of Toe angle, intermediate zone etc..The tool for participating in flow of metal during roll piercing has roll, guide plate and top
Head etc..Active force in roll piercing be exactly act on the power on tool in deformation, therefore the active force of punch nothing more than
It is the power acted on roll, guide plate and top.The active force of roll piercing is the initial data of rolling mill design and production, thus
Its value is accurately determined to rolling mill design and to draft technique all critically important, inaccurate often makes equipment since force parameter determines
Intensity Design excessive and cause to waste, or design excessive weak and cause equipment breakdown, or even cannot proceed normally production,
When can often encounter such problems in production, therefore be accurately determined perforation force parameter be design and produce in have it is to be solved
Critical issue.For existing equipment and the deficiency of technology, the invention reside in providing a kind of Mannesmann piercing mill, structure is simple,
Easy to operate, low in cost, strong applicability.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of Mannesmann piercing mill, the Mannesmann piercing mill by fuselage sections and perforation running part combine, mainly by base,
The composition such as mandril, roll and main motor；The Mannesmann piercing mill fuselage sections are made of base, blow tank and pusher etc.；
The Mannesmann piercing mill perforation running part includes motor, mandril, roll and top etc.；The roll and top setting exists
In base；The roll is placed up and down, and opposite top is symmetrical, avoids the abrasion to top；The guide plate plays pipe
With the guiding role of hollow billet, stablize roll line, closed type outer ring, limitation hollow billet transversely deforming.
As a preferred solution of the present invention, the heading material is forged steel, and 40Cr stainless steel is welded on surface.
As a preferred solution of the present invention, the roll is divided into approach cone, outlet cone and rolled bands and (also known as compresses
Band) three sections.
As a preferred solution of the present invention, the base is so that pipe is generated plastic deformation, and bear all to roll
Power processed.
As a preferred solution of the present invention, the roll is placed up and down, and is changed guide plate into godet or so and placed.
As a preferred solution of the present invention, the guide plate entrance inclined-plane is to import pipe；Exit ramp is export
Hollow billet simultaneously limits the expanding of hollow billet；Transition of the intermediate zone between two inclined-planes.
The invention has the advantages that the device guide plate or so is placed in parallel, pierced shell can reduce in the operation of rolling
In the material stress that is subject to, improve pierced shell Wall thickness uniformity；Roll is placed up and down, and opposite top is symmetrical, can be avoided
To the abrasive action of top, extend the service life of punch.The utility model is ingenious in design, effectively solves to deposit in the prior art
The problem of, suitable for being widely popularized.
Detailed description of the invention
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.
Fig. 1 is the structural diagram of the invention.
1- blow tank, 2- pusher, 3- main coupling, 4- main motor, 5- combined gear seat, 6- universal-joint spindle, 7- in figure
Guide plate, 8- base, 9- stirring hook, 10- mandril trolley, 11- stop frame, 12- centration axis, 13- track, the top 14-, 15- roll.
Specific embodiment
In Fig. 1, Mannesmann piercing mill is combined by fuselage sections and perforation running part, mainly by base, mandril, roll
And the composition such as main motor；The Mannesmann piercing mill fuselage sections are made of base, blow tank and pusher etc.；The oblique milling
Punch perforation running part includes motor, mandril, roll and top etc.；The roll and top is arranged in base；Institute
The roll stated is placed up and down, and opposite top is symmetrical, avoids the abrasion to top；The guide plate plays leading for pipe and hollow billet
To effect, stablize roll line, closed type outer ring, limitation hollow billet transversely deforming.
The Mannesmann piercing mill working method are as follows: the operation of rolling is a unique continuous rolling process, after pipe-hollow billet bites,
By roll drive obtain screw, rotation, while advance, and 1/n(n be roll number) it is primary by Roller Machining.
In this way, pass sequentially through perforation deformed area various pieces, be subjected to perforation prepare, it is secondary bite, hollow billet subtracts wall, smooth surfaces externally and internally
With obtain uniform wall thickness and rolling deformation, and obtain the hollow billet of desired size.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of Mannesmann piercing mill, it is characterized in that: the Mannesmann piercing mill is combined by fuselage sections and perforation running part, mainly
It is made of base, mandril, roll and main motor；The Mannesmann piercing mill fuselage sections are by base, blow tank and pusher group
At；The Mannesmann piercing mill perforation running part includes motor, mandril, roll and top；The roll and top setting
In base；The roll is placed up and down, and opposite top is symmetrical, avoids the abrasion to top；Guide plate plays pipe and hair
The guiding role of pipe stablizes roll line, closed type outer ring, limitation hollow billet transversely deforming.
2. Mannesmann piercing mill according to claim 1, it is characterized in that: the heading material is forged steel, surface welding
40Cr stainless steel.
3. Mannesmann piercing mill according to claim 1, it is characterized in that: the roll is divided into approach cone, outlet cone and rolls
Three sections of system band (also known as compression strap).
4. Mannesmann piercing mill according to claim 1, it is characterized in that: the base is that pipe is made to generate plastic deformation,
And bear whole roll-forces.
5. Mannesmann piercing mill according to claim 1 it is characterized in that: the roll is placed up and down, and guide plate is changed into
Godet or so is placed.
6. Mannesmann piercing mill according to claim 1, it is characterized in that: the guide plate entrance inclined-plane is to import pipe；Out
Mouth inclined-plane is export hollow billet and limits the expanding of hollow billet；Transition of the intermediate zone between two inclined-planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354637.4U CN208288672U (en) | 2018-03-15 | 2018-03-15 | A kind of Mannesmann piercing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354637.4U CN208288672U (en) | 2018-03-15 | 2018-03-15 | A kind of Mannesmann piercing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208288672U true CN208288672U (en) | 2018-12-28 |
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ID=64694265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820354637.4U Active CN208288672U (en) | 2018-03-15 | 2018-03-15 | A kind of Mannesmann piercing mill |
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| CN (1) | CN208288672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172092A (en) * | 2021-05-12 | 2021-07-27 | 浙江传播者金属装饰材料有限公司 | Steel pipe production equipment |
-
2018
- 2018-03-15 CN CN201820354637.4U patent/CN208288672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172092A (en) * | 2021-05-12 | 2021-07-27 | 浙江传播者金属装饰材料有限公司 | Steel pipe production equipment |
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