CN103557381A - Strengthened steel pipe with rib spirally wound as well as special equipment and method for manufacturing preparing strengthened steel pipe - Google Patents
Strengthened steel pipe with rib spirally wound as well as special equipment and method for manufacturing preparing strengthened steel pipe Download PDFInfo
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- CN103557381A CN103557381A CN201310561993.5A CN201310561993A CN103557381A CN 103557381 A CN103557381 A CN 103557381A CN 201310561993 A CN201310561993 A CN 201310561993A CN 103557381 A CN103557381 A CN 103557381A
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- steel band
- spiral
- machine
- structural walls
- stiffening rib
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
- F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
Abstract
The invention belongs to the technical field of pipes and discloses a strengthened steel pipe with a rib spirally wound as well as special equipment and a method for preparing the strengthened steel pipe. The main technical scheme of the invention is as follows: the strengthened steel pipe comprises a pipe body, wherein the pipe body is formed by spirally rolling and welding a large steel strip; a structure wall strengthening rib is spirally wound and welded on the outer wall of the pipe body; the structure wall strengthening rib is formed by a small steel strip rolled to be structure wall shaped and spirally wound. During manufacture of the strengthened steel pipe, the large steel strip is formed into the pipe body in advance, the small steel strip is formed into a spiral strengthening rib, on a combined molding unit, the spiral strengthening rib is mounted on the pipe body in a sleeving manner, and is pressed by a limiting rolling wheel and continuously and discontinuously welded. A spiral welding seam, the structure wall strengthening rib and welding nodes greatly improve the ring stiffness and bearing strength of pipes, the wall thickness of the pipe body is remarkably reduced, and the strengthened steel pipe is particularly applicable to negative-pressure pipelines and positive-pressure liquid pipe with lower bearing capacity, and can also be applicable to positive-pressure gas conveying pipelines.
Description
Technical field
The invention belongs to pipe technology field, disclose concretely a kind of spiral winding muscle and strengthened steel pipe and special-purpose Preparation equipment and preparation method.
Background technique
at present, in industry down-hole, colliery, the pipeline for gas extraction adopts steel wire mesh framework polyethylene pipe, steel pipe, steel plastic-coated pipeline, steel lining plastic pipeline mostly.Steel wire mesh framework polyethylene pipe is through the use checking in market, due to used raw material, need to add the materials such as carbon black, red phosphorus to reach antistatic and flame retardant property, therefore cause the brittle cracking phenomenon of tubing commonplace, present many Mining Bureaus have prohibited use; Steel pipe is the tubing of larger caliber particularly, and the wall thickness of pipeline is thicker, and its ring stiffness and pi of strength have exceeded from far away it and used desired performance, caused the waste of material, and the weight of steel pipe are heavier, and installation difficulty is large, and expense is high; Steel plastic-coated pipeline, steel lining plastic pipeline, owing to adopting steel pipe as organism material, exist equally the waste of material, and installation difficulty are large, the problem that expense is high.
in urban construction industry, such as blow-off line, the buried draining adopting does not form one with the steel strip reinforced layer of steel band composite pipe within the scope of tube wall cross section, and cross section cracking phenomena easily occurs when the larger sedimentation of handling or ground is installed.
Summary of the invention
First technical problem that the present invention will solve is just to provide that a kind of ring stiffness is high, lightweight, corrosion protection, spiral winding muscle that cost performance is high strengthen steel pipe.
For solving above-mentioned first technical problem, the technical solution used in the present invention is: comprise body, the large steel band that described body is rolled and welded by spiral forms, tube wall spiral winding is welded with structural walls stiffening rib, and structural walls stiffening rib is that the little steel band that structural walls shape rear screw is wound around forms by rolling-forming.
Its additional technical feature is: the large steel band of described formation body is 0.8---Stainless Steel Band, hot rolled strip or cold-rolled strip that 3.5mm is thick, and the little steel band that forms structural walls stiffening rib is 1.0---Stainless Steel Band, hot rolled strip or cold-rolled strip that 1.5mm is thick;
The sectional shape of described structural walls stiffening rib is taper, arch or arc;
Described structural walls stiffening rib is that single head or multi-head spiral are wound around;
The inside and outside surface of the body that described cold-rolled strip forms is provided with coating layer or zinc coat.
Second technical problem that the present invention will solve is just to provide the special-purpose Preparation equipment that a kind of spiral winding muscle strengthens steel pipe.
For solving above-mentioned second technical problem, the technical solution used in the present invention is: comprise thin-walled spiral welded pipe unit, structural walls spiral rib plate unit, gang welding shaping machine set;
Described thin-walled spiral welded pipe unit comprises large steel band uncoiler, large steel band gripping leveling machine, large steel band location edger roll, large steel band docking facilities, large steel band delivery machine, guide plate, round as a ball forming machine, adjusts the propons that large steel band is carried inclination angle, large steel band joint weld machine, finely tune the back axle of large steel band interface, pipe cutting machine;
Described structural walls spiral rib plate unit comprises little steel band uncoiler, little steel band gripping leveling machine, little steel band location edger roll, little steel band dock, cold-bending molding machine, spiral forming machine;
Described gang welding shaping machine set comprises body clamping device, and power is carried rotating machinery, body supporting mechanism, and guiding conveyer, compresses positioning wheel, automatic tracking welding connection device, argon arc welding machine.
Its additional technical feature is: described large steel band joint weld machine, automatic tracking welding connection device adopt argon arc welding or Plasma Welding;
Described cold-bending molding machine is that five groups with active power transmitting mechanism are difform to roller set.
The 3rd technical problem that the present invention will solve is just to provide the preparation method that a kind of spiral winding muscle strengthens steel pipe.
For solving above-mentioned the 3rd technical problem, the technical solution used in the present invention comprises the following steps:
the first step, large ribbon spiral rolling welding fabrication are thin-walled spiral welded pipe body
large steel band launches on large steel band uncoiler, on large steel band gripping leveling machine leveling, utilize large steel band location edger roll guide-localization, under the effect of large steel band delivery machine, large steel band is conveyed into round as a ball forming machine by guide plate, adjust large steel band and carry the conveying inclination angle of the propons at inclination angle, pair roller relative position with round as a ball forming machine, is shaped to spiral roll bending at round as a ball forming machine, utilizes large steel band joint weld machine to be welded into thin-walled spiral welded pipe body;
second step, little steel band rolling and forming are structural walls stiffening rib
Little steel band launches on little steel band uncoiler, on little steel band gripping leveling machine leveling, utilize little steel band location edger roll guide-localization, five groups of cold-bending molding machines initiatively to the effect of rolling wheel under, progressively be shaped to structural walls shape, by spiral forming machine be rolled into certain helix angle and and the structural walls stiffening rib of body same curvature radius;
The 3rd step, structural walls stiffening rib are sleeved on body
body is clamped in to the body clamping rotating machinery of gang welding shaping machine set, adjust position and the center height of body supporting mechanism, make body level, start body clamping rotating machinery and make body rotation, the structural walls stiffening rib of simultaneously making, under the effect of guiding conveyer, is carried and is sleeved on body;
the 4th step, compressing structure wall stiffening rib, welding junction
Adjust the initial relative position of structural walls stiffening rib and body, compress positioning wheel and compress stiffening rib, interface position firm welding;
the 5th step, welding fabrication are tubing
Start body clamping rotating machinery and make body rotation, compress positioning wheel and automatic tracking welding connection device and along body, make linear relative movement under the effect of guiding conveyer, structural walls stiffening rib is done relative spiral motion along body under the effect that compresses positioning wheel, open automatic tracking welding connection device and weld, structural walls stiffening rib is welded on body.
Spiral winding muscle provided by the present invention strengthens steel pipe, and body rolls and passes through welding by Stainless Steel Band, hot rolled strip or cold-rolled strip spiral and is configured to thin-walled spiral welded pipe, the dual functions that the existence of spiral welding muscle has been played sealing and strengthened; Structural walls stiffening rib by Stainless Steel Band, hot rolled strip or cold-rolled strip in advance rolling-forming be taper, arch or arc, through roller postforming grade processed be with certain lead angle and and the spiral circle of body same curvature radius; Structural walls stiffening rib is wrapped in outer surface of tube body, and is that spiral winding muscle strengthens steel pipe through continuous or interrupted welding fabrication.Structural walls stiffening rib has played humidification, and welding node has also played the effect that strengthens muscle simultaneously.
spiral winding muscle provided by the present invention strengthens steel pipe and compares compared to common larger caliber seamless steel pipe, spiral welded pipe, ERW on market, body wall thickness obviously reduces, effectively saved material resources, the body wall thickness of this structural type is generally 0.8---3.5mm, structural walls stiffening rib wall thickness is generally 1.0---1.5mm, due to the existence of outer wall spiral winding muscle, greatly improved ring stiffness and the bearing strength of body.Spiral winding muscle provided by the present invention strengthens steel pipe and is made into after tubing with Stainless Steel Band, can meet the requirement of Corrosion Protection; With non-stainless steel materials such as hot rolled strip, cold-rolled strips, be made into after body, then carry out, after corrosion-inhibiting coating processing, can meeting the requirement to body antiseptic property.
spiral winding muscle provided by the present invention strengthens steel pipe owing to adopting steel material as housing construction, has improved the intensity of tubing itself; Due to the structural type that thin-wall steel tube has adopted structural walls stiffening rib to strengthen, further increased ring stiffness and the burst strength of pipeline; The pipeline of this structural type is after plastic-coated is processed, improved Corrosion Protection, effectively saved material resources, can carry for lower pressure the media such as water and corrosive fluid, also can be for negative pressure line, be particularly suitable for the underground mine use pipeline that draws out methane.Spiral winding muscle provided by the present invention strengthens steel pipe and is specially adapted to negative pressure line and the lower buried drain pipe road of bearing capacity, also can be used for barotropic gas delivery line, and cost performance is largely increased.
Accompanying drawing explanation
Fig. 1 is the structural representation that spiral winding muscle of the present invention strengthens steel pipe;
Fig. 2 is that spiral winding muscle strengthens the structural representation that steel tube prefabricated becomes spiral welded pipe body;
Fig. 3 is that spiral winding muscle strengthens the structural representation that steel tube prefabricated becomes helix structure wall stiffening rib;
Fig. 4 is the structural representation of thin-walled spiral welded pipe unit;
Fig. 5 is the structural representation of structural walls spiral rib plate unit;
Fig. 6 is the structural representation of gang welding shaping machine set;
Fig. 7 is the plan view of Fig. 6.
Embodiment
The structure that spiral winding muscle provided by the present invention is strengthened to steel pipe below in conjunction with accompanying drawing is described in further detail.
As shown in Figure 1, a kind of spiral winding muscle provided by the invention strengthens steel pipe and comprises body 1, body 1 outer wall spiral winding is welded with structural walls stiffening rib 2, large steel band 3 and spiral weld 4 that body 1 is rolled and welded by spiral form, structural walls stiffening rib 2 is that the little steel band 5 that structural walls shape rear screw is wound around forms by rolling-forming, and 1 of little steel band 5 and body have welding node 6.
As shown in Figure 2, body 1 is rolled by spiral steel band 3 and spiral weld 4 form.
As shown in Figure 3, structural walls stiffening rib 2 is that the little steel band 5 that structural walls shape rear screw is wound around forms by rolling-forming, and 1 of little steel band 5 and body have welding node 6.
As shown in Figure 4, thin-walled spiral welded pipe unit comprises large steel band uncoiler 71, large steel band gripping leveling machine 72, large steel band location edger roll 73, large steel band docking facilities 74, large steel band delivery machine 75, guide plate 76, round as a ball forming machine 77, adjust large steel band and carry the propons 78 at inclination angle, large steel band joint weld machine 79, finely tunes the back axle 710 of large steel band interface, pipe cutting machine 711, unloading rack 712.
As shown in Figure 5, structural walls spiral rib plate unit comprises little steel band uncoiler 81, little steel band gripping leveling machine 82, little steel band location edger roll 83, little steel band dock 84, cold-bending molding machine 85, spiral forming machine 86.
As shown in Figure 6, gang welding shaping machine set comprises body clamping device 91, and body supporting mechanism 93 compresses positioning wheel 95, automatic tracking welding connection device 96.
As shown in Figure 7, gang welding shaping machine set comprises power conveying rotating machinery 92, guiding conveyer 94, argon arc welding machine 97.
when spiral winding muscle provided by the present invention strengthens steel pipe manufacture, large steel band 3 screw rollings welding fabrication, be first thin-walled spiral welded pipe body 1, large steel band 3 launches on large steel band uncoiler 71, leveling on large steel band gripping leveling machine 72, utilize large steel band location edger roll 73 guide-localizations, under the effect of large steel band delivery machine 75, large steel band 3 is conveyed into round as a ball forming machine 77 by guide plate 76, adjust large steel band and carry the conveying inclination angle of the propons 78 at inclination angle, pair roller relative position with round as a ball forming machine 77, at round as a ball forming machine 77, be shaped to spiral roll bending, utilize large steel band joint weld machine 79 to be welded into thin-walled spiral welded pipe body 1, little steel band 5 rolling and formings, be structural walls stiffening rib 2 simultaneously, little steel band 5 launches on little steel band uncoiler 81, on little steel band gripping leveling machine 82 leveling, utilize little steel band location edger roll 83 guide-localizations, 85 5 groups of cold-bending molding machines initiatively to the effect of rolling wheel under, progressively be shaped to structural walls shape, by spiral forming machine 86 be rolled into certain helix angle and and the structural walls stiffening rib 2 of body 1 same curvature radius, then bar structure wall stiffening rib 2 is sleeved on body 1, body 1 is clamped on the body clamping device 91 of gang welding shaping machine set, adjust position and the center height of body supporting mechanism 93, make body 1 level, starting power carries rotating machinery 92 to make body 1 rotation, the structural walls stiffening rib 2 of simultaneously making, under the effect of guiding conveyer 94, is carried and is sleeved on body 1, then utilize and compress positioning wheel 95 compressing structure wall stiffening ribs 2, welding junction, adjust the initial relative position of structural walls stiffening rib 2 and body 1, compress positioning wheel 95 compressing structure wall stiffening ribs 2, interface position firm welding, last welding fabrication is tubing, starting power carries rotating machinery 92 to make body 1 rotation, compress positioning wheel 95 and automatic tracking welding connection device 96 and along body 1, make linear relative movement under the effect of guiding conveyer 94, structural walls stiffening rib 2 is done relative spiral motion along body 1 under the effect that compresses positioning wheel 95, open argon arc welding machine 97, adjust welding current and wire feed rate and weld, obtain needed finished product.
spiral winding muscle provided by the present invention strengthens steel pipe and compares compared to common larger caliber seamless steel pipe, spiral welded pipe, ERW on market, body 1 wall thickness obviously reduces, effectively saved material resources, body 1 wall thickness of this structural type is generally 0.8---3.5mm, structural walls stiffening rib 2 wall thickness are generally 1.0---1.5mm, due to the existence of spiral weld 4 and structural walls stiffening rib 2, welding node 6, greatly improved ring stiffness and the bearing strength of tubing.Spiral winding provided by the present invention strengthens the effective Stainless Steel Band of concrete steel and is made into after tubing, can meet the requirement of Corrosion Protection; With non-stainless steel materials such as hot rolled strip, cold-rolled strip, copper strips, aluminium strips, be made into after tubing, then carry out after corrosion-inhibiting coating processing, can meet the requirement to tubing antiseptic property.
Protection scope of the present invention is not only confined to above-described embodiment, as long as structure is identical with spiral winding muscle enhancing steel pipe of the present invention, just drops on the scope of protection of the invention.
Claims (9)
1. spiral winding muscle strengthens steel pipe, comprise body, it is characterized in that: the large steel band that described body is rolled and welded by spiral forms, and tube wall spiral winding is welded with structural walls stiffening rib, structural walls stiffening rib is that the little steel band that structural walls shape rear screw is wound around forms by rolling-forming.
2. spiral winding muscle according to claim 1 strengthens steel pipe, it is characterized in that: the large steel band of described formation body is 0.8---Stainless Steel Band, hot rolled strip or cold-rolled strip that 3.5mm is thick, the little steel band that forms structural walls stiffening rib is 1.0---Stainless Steel Band, hot rolled strip or cold-rolled strip that 1.5mm is thick.
3. spiral winding muscle according to claim 1 strengthens steel pipe, it is characterized in that: the sectional shape of described structural walls stiffening rib is taper, arch or arc.
4. spiral winding muscle according to claim 1 strengthens steel pipe, it is characterized in that: described structural walls stiffening rib is that single head or multi-head spiral are wound around.
5. spiral winding muscle according to claim 2 strengthens steel pipe, it is characterized in that: the inside and outside surface of the body that described cold-rolled strip forms is provided with coating layer or zinc coat.
6. preparation spiral winding muscle claimed in claim 1 strengthens the special device of steel pipe, it is characterized in that: comprise thin-walled spiral welded pipe unit, structural walls spiral rib plate unit, gang welding shaping machine set;
Described thin-walled spiral welded pipe unit comprises large steel band uncoiler, large steel band gripping leveling machine, large steel band location edger roll, large steel band docking facilities, large steel band delivery machine, guide plate, round as a ball forming machine, adjusts the propons that large steel band is carried inclination angle, large steel band joint weld machine, finely tune the back axle of large steel band interface, pipe cutting machine;
Described structural walls spiral rib plate unit comprises little steel band uncoiler, little steel band gripping leveling machine, little steel band location edger roll, little steel band dock, cold-bending molding machine, spiral forming machine;
Described gang welding shaping machine set comprises body clamping device, and power is carried rotating machinery, body supporting mechanism, and guiding conveyer, compresses positioning wheel, automatic tracking welding connection device, argon arc welding machine.
7. special device according to claim 6, is characterized in that: described large steel band joint weld machine, automatic tracking welding connection device adopt argon arc welding or Plasma Welding.
8. special device according to claim 6, is characterized in that: described cold-bending molding machine is for difform to roller set with five groups of active power transmitting mechanism.
9. utilize the special device described in claim 6 or 7 or 8 to prepare the method that spiral winding muscle strengthens steel pipe, it is characterized in that comprising the following steps:
the first step, large ribbon spiral rolling welding fabrication are thin-walled spiral welded pipe body
large steel band launches on large steel band uncoiler, on large steel band gripping leveling machine leveling, utilize large steel band location edger roll guide-localization, under the effect of large steel band delivery machine, large steel band is conveyed into round as a ball forming machine by guide plate, adjust large steel band and carry the conveying inclination angle of the propons at inclination angle, pair roller relative position with round as a ball forming machine, is shaped to spiral roll bending at round as a ball forming machine, utilizes large steel band joint weld machine to be welded into thin-walled spiral welded pipe body;
second step, little steel band rolling and forming are structural walls stiffening rib
Little steel band launches on little steel band uncoiler, on little steel band gripping leveling machine leveling, utilize little steel band location edger roll guide-localization, five groups of cold-bending molding machines initiatively to the effect of rolling wheel under, progressively be shaped to structural walls shape, by spiral forming machine be rolled into certain helix angle and and the structural walls stiffening rib of body same curvature radius;
The 3rd step, structural walls stiffening rib are sleeved on body
body is clamped in to the body clamping rotating machinery of gang welding shaping machine set, adjust position and the center height of body supporting mechanism, make body level, start body clamping rotating machinery and make body rotation, the structural walls stiffening rib of simultaneously making, under the effect of guiding conveyer, is carried and is sleeved on body;
the 4th step, compressing structure wall stiffening rib, welding junction
Adjust the initial relative position of structural walls stiffening rib and body, compress positioning wheel and compress stiffening rib, interface position firm welding;
the 5th step, welding fabrication are tubing
Start body clamping rotating machinery and make body rotation, compress positioning wheel and automatic tracking welding connection device and along body, make linear relative movement under the effect of guiding conveyer, structural walls stiffening rib is done relative spiral motion along body under the effect that compresses positioning wheel, open automatic tracking welding connection device and weld, structural walls stiffening rib is welded on body.
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| CN201310561993.5A CN103557381B (en) | 2013-11-13 | 2013-11-13 | Strengthened steel pipe with rib spirally wound as well as special equipment and method for manufacturing preparing strengthened steel pipe |
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| CN104384935A (en) * | 2014-09-18 | 2015-03-04 | 南京联众建设工程技术有限公司 | Automatic production equipment of spiral steel pipe with spiral reinforcing ring |
| CN104565560A (en) * | 2014-12-24 | 2015-04-29 | 南京联众建设工程技术有限公司 | Large-diameter spiral welded steel pipe with metal linings and manufacturing method thereof |
| CN105221850A (en) * | 2015-09-30 | 2016-01-06 | 张翼飞 | A kind of anticorrosive steel rib strengthens Spiral Steel Pipe and preparation method thereof |
| CN105817747A (en) * | 2016-06-07 | 2016-08-03 | 湖北飞歌科技有限公司 | Argon arc welding machine for shaped circular seams of reinforced steel-plastic composite pipes |
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