CN103447360A - Device for producing arc-shaped steel pipes - Google Patents
Device for producing arc-shaped steel pipes Download PDFInfo
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- CN103447360A CN103447360A CN2013103737636A CN201310373763A CN103447360A CN 103447360 A CN103447360 A CN 103447360A CN 2013103737636 A CN2013103737636 A CN 2013103737636A CN 201310373763 A CN201310373763 A CN 201310373763A CN 103447360 A CN103447360 A CN 103447360A
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- steel pipe
- heating furnace
- rotary arm
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Abstract
The invention relates to a device for producing arc-shaped steel pipes, which comprises a heating furnace, wherein the heating furnace is used for heating a steel pipe to soften the steel pipe, a horizontal roller way for bearing the steel pipe is arranged in the heating furnace, a rotary arm is arranged at one side of the steel-pipe outlet of the heating furnace, the rotary arm rotates around one side of the rotary arm, the other end of the rotary arm is fixedly connected with the end part of the steel pipe positioned in the heating furnace, and the rotary arm is driven by external motive power to drive the end part of the steel pipe to make circumferential movement, so that the softened steel pipe in the heating furnace is pulled out and bent to be arc-shaped. According to the invention, the steel pipe is firstly softened, and the end part of the steel pipe is driven to rotate by using the rotary arm; in the process, the steel pipe is bent into a certain radian under the actions of a pulling force and the supporting force of the rotary arm, and arc-shaped steel pipes with different radians can be produced by adjusting the length of the rotary arm, thus, not only are a large amount of moulds saved, but also the radians of the produced arc-shaped steel pipes are easily controlled and adjusted, so that the precision of the produced arc-shaped steel pipes is greatly improved, and the damage of a mechanical force to steel-pipe tissues also can not be caused.
Description
Technical field
The present invention relates to the production and processing field of steel pipe, specifically a kind of curved steel tube process units.
Background technology
In reality is produced, often need to use curved steel tube, these curved steel tubes are all that straight steel pipe is bent into to needed radian by certain means.In prior art, the method for steel pipe bending is all generally to adopt mechanical deflection, is prepared in advance and has the radian that will bend or the mould of shape, then steel pipe is placed on mould and to its continu to press, until it is fitted and complete making with mould.The machining accuracy of this mode is difficult to be guaranteed, and organizing also of steel pipe may sustain damage in process, the quality of the curved steel tube that impact is produced.For the ease of processing, also can steel pipe be heated to reduce its hardness on above basis, and then exert pressure and be pressed into needed radian to it, but still exist the problems referred to above.
Summary of the invention
In order to solve, the precision existed in compacting production curved steel tube in prior art is not high organizes the problems such as easy damaged with steel pipe, the invention provides a kind of curved steel tube process units.
The present invention solves the problems of the technologies described above the technical scheme of employing to be: a kind of curved steel tube process units, comprise that one makes its softening heating furnace for heating steel pipe, in described heating furnace, be provided with for carrying the horizontal roller of steel pipe, one side in the steel pipe exit of heating furnace is provided with cursor, cursor rotates around the end of himself, the other end is fixedly connected with the end of steel pipe in heating furnace, thereby the end that external connection power drives cursor to drive steel pipe circles, arc is pulled out and be bent into to steel pipe softening in heating furnace.
Steel pipe after described softening is the pulling force be subject in order to reduce its middle part on horizontal roller, prevent from causing due to the impact of steel pipe gravity and resistance the intensity of the excessive reduction curved steel tube of deflection at its end and middle part, the roller that horizontal roller is freely rotated by a row forms.
The length of described cursor is adjustable to change the curvature of steel pipe bending, thereby realizes the curved steel tube of production different curvature radius by controlling cursor length, meets different needs.
Described heating furnace, for steel pipe is heated to 870 ~ 970 ℃, does not damage and changes under the prerequisite of steel pipe tissue with assurance, guarantees that it has toughness and ductility preferably, thereby is bent specific arc.
Beneficial effect: the present invention first drives its end rotation by the softening cursor that then uses of steel pipe, in this process, steel pipe is bent into certain radian under the effect of the support force of pulling force and cursor, this radian is the center of circle with take the other end of cursor, the a certain section circular arc radian that the cursor of take is radius is identical, can produce the curved steel tube of different radians by the length of adjusting cursor, so not only saved a large amount of moulds, and the radian of the curved steel tube of producing also is easy to control and adjust, greatly improved the precision of the curved steel tube of producing, nor can cause the steel pipe tissue to be damaged by mechanical force.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Reference numeral: 1, heating furnace, 2, horizontal roller, 3, steel pipe, 4, cursor.
The specific embodiment
As shown in the figure, a kind of curved steel tube process units, comprise that one makes its softening heating furnace 1 for heating steel pipe 3, be provided with the horizontal roller 2 for carrying steel pipe 3 in described heating furnace 1, one side in the steel pipe exit of heating furnace 1 is provided with cursor 4, cursor 4 rotates around the end of himself, the other end is fixedly connected with the end of steel pipe 3 in heating furnace 1, thereby the end that external connection power drives cursor 4 to drive steel pipes 3 circles, arc is pulled out and be bent into to steel pipe softening in heating furnace 13.
In the present invention, by power drive, it circles cursor 4 within the specific limits, steel pipe 3 ends are in the process of rotating with cursor 4, the middle part that its end can drive steel pipe 3 travels forward and keeps its linear inertia, like this, the front portion of steel pipe 3 circles, and rear portion still travels forward under the effect of pulling force, and then is bent into arc.Because steel pipe 3 itself has certain weight, pull steel pipe 3 to advance and just must overcome the impact of this part of gravity, in order to prevent causing steel pipe 3 to be organized by wall thickness attenuation and steel pipe 3 that too stretching causes the problem changed in drawing process because steel pipe 3 is too softening, heating furnace 1 should be heated to 870 ~ 970 ℃ by steel pipe 3.
In the present invention, driving the power of cursor 4 can be piston-cylinder or hydraulic jack, and the flexible cursor 4 that drives by piston rod in oil cylinder rotates, and can be also other mechanism that rotational power is provided;
In the present invention, the purpose of described heating furnace 1 is that steel pipe 3 is heated to certain temperature, and the equal indefinite of its structure and principle of heating, as long as can realize above-mentioned functions, preferably adopt eddy heating for heating, structure is similar to the heating furnace of the eddy heating for heatings such as intermediate-frequency heating furnace or dielectric heating oven.
Be more than basic embodiment of the present invention, can on above basis, make and improve and optimize:
As, in order to reduce the impact of steel pipe 3 self gravitations on machining accuracy and crudy, the pulling force that steel pipe 3 after making to soften is subject to reduce steel pipe 3 middle parts on horizontal roller 2, the roller that horizontal roller 2 is freely rotated by a row forms, so only need the pulling force of less can make steel pipe 3 travel forward and keep its motional inertia, thereby improved machining accuracy, also guaranteed crudy (the strength decreased problem that not there will be wall thickness to cause due to tension-thining);
In order to meet the requirement of producing differently curved radian steel pipe, can make the length of cursor 4 adjustable, can adjust the curvature that changes steel pipe 3 bendings by the length of cursor 4 like this, can be by the following method but be not limited only to following methods and realize in order to realize that cursor 4 length are adjustable:
Can certainly be arranged to the structure that screw rod and sleeve match.
Claims (3)
1. a curved steel tube process units, comprise that one makes its softening heating furnace (1) for heating steel pipe (3), it is characterized in that: be provided with the horizontal roller (2) for carrying steel pipe (3) in described heating furnace (1), one side in the steel pipe exit of heating furnace (1) is provided with cursor (4), cursor (4) rotates around the end of himself, the other end is fixedly connected with the end of steel pipe (3) in heating furnace (1), external connection power drive cursor (4) to drive steel pipe (3) thus end circle arc is pulled out and be bent into to steel pipe (3) softening in heating furnace (1).
2. a kind of curved steel tube process units according to claim 1, it is characterized in that: the roller that described horizontal roller (2) is freely rotated by a row forms.
3. a kind of curved steel tube process units according to claim 1, is characterized in that: the curvature that the length of described cursor (4) is adjustable to be bent to change steel pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103737636A CN103447360A (en) | 2013-08-26 | 2013-08-26 | Device for producing arc-shaped steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103737636A CN103447360A (en) | 2013-08-26 | 2013-08-26 | Device for producing arc-shaped steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103447360A true CN103447360A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013103737636A Pending CN103447360A (en) | 2013-08-26 | 2013-08-26 | Device for producing arc-shaped steel pipes |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290955A (en) * | 1998-01-30 | 1999-10-26 | Kazuo Shiozuka | Arm mechanism for high frequency bender |
| EP1393832B1 (en) * | 2002-08-27 | 2005-03-23 | Mannesmannröhren-Werke AG | Method and device for induction-bending of pipes |
| CN101219449A (en) * | 2008-01-22 | 2008-07-16 | 大连冶金结晶器有限公司 | Semi-automatic production method of integrally arcuate stainless steel round blank crystallizer water jacket |
| CN101638748A (en) * | 2009-08-15 | 2010-02-03 | 陕西同心连铸管业科技有限公司 | Continuous casting method of large-length hollow ductile cast iron sections and method for arcing hollow ductile cast iron sections after local continuous heating |
| CN102784821A (en) * | 2012-08-06 | 2012-11-21 | 江苏兴洋管业股份有限公司 | Coreless pipe-bending machine |
| CN203470576U (en) * | 2013-08-26 | 2014-03-12 | 河南省驰源石油化工机械有限公司 | Device for producing arc-shaped steel pipe |
-
2013
- 2013-08-26 CN CN2013103737636A patent/CN103447360A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290955A (en) * | 1998-01-30 | 1999-10-26 | Kazuo Shiozuka | Arm mechanism for high frequency bender |
| EP1393832B1 (en) * | 2002-08-27 | 2005-03-23 | Mannesmannröhren-Werke AG | Method and device for induction-bending of pipes |
| CN101219449A (en) * | 2008-01-22 | 2008-07-16 | 大连冶金结晶器有限公司 | Semi-automatic production method of integrally arcuate stainless steel round blank crystallizer water jacket |
| CN101638748A (en) * | 2009-08-15 | 2010-02-03 | 陕西同心连铸管业科技有限公司 | Continuous casting method of large-length hollow ductile cast iron sections and method for arcing hollow ductile cast iron sections after local continuous heating |
| CN102784821A (en) * | 2012-08-06 | 2012-11-21 | 江苏兴洋管业股份有限公司 | Coreless pipe-bending machine |
| CN203470576U (en) * | 2013-08-26 | 2014-03-12 | 河南省驰源石油化工机械有限公司 | Device for producing arc-shaped steel pipe |
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Application publication date: 20131218 |