CN101386116A - High-frequency straight welded pipe welding-seam guide roll - Google Patents
High-frequency straight welded pipe welding-seam guide roll Download PDFInfo
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- CN101386116A CN101386116A CNA2008101211606A CN200810121160A CN101386116A CN 101386116 A CN101386116 A CN 101386116A CN A2008101211606 A CNA2008101211606 A CN A2008101211606A CN 200810121160 A CN200810121160 A CN 200810121160A CN 101386116 A CN101386116 A CN 101386116A
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- axle
- welded pipe
- seam
- pipe welding
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Abstract
The invention discloses a high-frequency welded pipe straight seam guiding roll which comprises a shaft, a baffle sheathed in a central position of the shaft, two guiding rolls set at two sides of the baffle symmetrically, a spacer ring which is sheathed on the shaft and separates the guiding rolls and the shaft; the two ends of the spacer ring are fixed on the shaft by a locking component; the two ends of the shaft are respectively connected to a support saddle by a bearing. The device has simple structure, can be directly arranged on an in-line burr removing machine rack by the support saddle and increase or decrease the thickness of the baffle by a guiding roll so as to meet production requirements of steel pipes with different specifications, thereby reducing the quantity of spare guiding rolls, shortening replacing time and greatly reducing costs. The angular aperture of the welding seam can be effectively controlled so that the comprehensive quality of the seam is improved. Meanwhile, the welding seam is always in an appropriate position in whole production course, thereby avoiding the declining of the welding seam, ensuring the effect of removing burr in seams and improving the comprehensive quality of the steel pipe.
Description
[technical field]
The present invention relates to high-frequency straight seam welded pipe process equipment field, relate in particular to the roller apron that is used for carrying out weld seam guiding and the control of weld seam angular aperture in the high-frequency straight seam welded pipe process.
[technical background]
High-frequency straight seam welded pipe is a kind of high-quality medium and small specification steel pipe commonly used in transfer oil and the natural gas line, because of its steel strength height, discharge pressure height, caliber precision height, production efficiency height, low cost and other advantages are used widely in oil transportation gas transmission and steel construction use field.Extruding forms by compression roller in the fusion of weld seam in the production technology of high-frequency straight seam welded pipe, and high-frequency induction welder is heated to molten state with steel pipe edge part before compression roller, just merges the formation round steel pipe by pushing the back weld seam.The extrusion process of compression roller has two aspect effects, and the one, oxide and other impurity of commissure is squeezed out, prevent that weld seam from having field trash to influence quality, the 2nd, steel pipe merges welding.According to practical experience and Fundamentals of Welding, weld seam must form certain included angle before warm, size is controlled at about 5 °, can improve the weld seam comprehensive quality, reduce electrical piano power loss, because precisive shaped frame roll is far away from compression roller, the weld seam angle of general direct formation is very little, therefore can not reach the angle of specification requirement, in the end increase a backing roll between roll and the compression roller, the steel pipe seam both sides after the moulding are strutted the angle that formation needs.Force direction is complicated and changeable to make the weld seam inclination cause inner-burr cleaning unclean to steel pipe easily because of being subjected in moulding extrusion process simultaneously, the same weld seam comprehensive quality that influences, so this backing roll that increases also play the guiding role, make weld seam be in rational position all the time, this backing roll is referred to as the weld seam guide roller in industry.The residing position of weld seam guide roller is in the middle of precisive shaped and compression roller as can be seen from the above description, and pressurized before and after it is whole stressed very big, so its structural strength must reach and enough could satisfy the production needs greatly.The heating of steel pipe body was produced by the electromagnetic induction that high-frequency induction welder produces during high-frequency straight seam welded pipe was produced, must insulation between heating region and part of appliance that steel pipe contacts, otherwise can cause the thermal efficiency to reduce electrical piano power loss strengthens, part of appliance also can be damaged by electromagnetic induction heating simultaneously, the contact both sides of weld seam guide roller to be the both sides of steel pipe body, so the not magnetic conduction that must insulate in the middle of the guide roller.The production of high-frequency straight seam welded pipe is to carry out continuously and speed is the fastest a kind of in all steel pipe's production, and the weld seam guide roller must satisfy long-time continuous and produce needs, otherwise directly influences steel pipe's production speed and efficient.
There is following problem in present employed weld seam guide roller structure: the one, and roller apron adopts absolute construction, and complex structure is adjusted and is changed the specification trouble, and the time is longer; The 2nd, the complex structure of guide roller is all had any problem to its built-in electrical insulation and integral installation, and has guide roller more than three kinds according to steel pipe specification different needs, and cost of use is higher; The 3rd, the guide roller problem of materials, what non-magnetic material was commonly used mainly is stainless steel, and stainless intensity is generally all lower, can not improve intensity by heat treatment, so the service life of guide roller is lower; The 4th, the insulating part material, the insulating materials in the middle of the guide roller of former use is thinner, has only about 1.5mm, damages easily.
[summary of the invention]
Purpose of the present invention is exactly to propose a kind of high-frequency straight welded pipe welding-seam guide roll in order to solve problems of the prior art, can simplified structure, and reduce cost, and can improve the weld seam comprehensive quality.
For achieving the above object, patent of the present invention has proposed a kind of high-frequency straight welded pipe welding-seam guide roll, comprise axle, be socketed in a centre position dividing plate, be symmetricly set on the dividing plate both sides two guide rollers, be socketed in axle and go up the spacer ring that guide roller and axle are isolated, the two ends of described spacer ring adopt latch assembly to be fixed on the axle, and the two ends of axle adopt bearing to be connected on the bearing respectively.
As preferably, described axle adopts non-magnetic stainless steel 304 materials to be made, and guide roller adopts the cold roll material to form through heat treatment process, and spacer ring adopts the poly-PTFE of insulation to make.
As preferably, the two ends of described axle also are provided with the anti-play assembly that withstands bearing.
As preferably, described anti-play assembly comprises the gland of pushing down bearing, gland is fixed on the screw of the end of axle.
As preferably, also be provided with elastic washer between described screw and the gland.
As preferably, also be provided with pressure ring between described guide roller and the spacer ring.
As preferably, described latch assembly comprises two pressing plates that are separately positioned on the spacer ring two ends, with two locking nuts that two pressing plates are locked, and described locking nut adopts with axle and is threaded.
As preferably, the inner face of described guide roller is processed with groove, and described dividing plate embeds in the groove.
The beneficial effect of patent of the present invention: the present invention is simple in structure, can directly be installed on the online inner-burr cleaning frame by bearing, use a kind of guide roller by increasing or reduce the steel pipe's production demand that block board thickness just can satisfy different size, reduced the preparation quantity and the replacing time of guide roller spare part, cost reduces greatly.Can effectively control the size of weld seam angular aperture, improve the weld seam comprehensive quality, simultaneously weld seam be located in place all the time, prevent the weld seam deflection, guarantee that the weld seam inner-burr cleaning gets effect, has improved the comprehensive quality of steel pipe.
[description of drawings]
Fig. 1 is the structural representation of high-frequency straight welded pipe welding-seam guide roll of the present invention.
[specific embodiment]
Consult Fig. 1, high-frequency straight welded pipe welding-seam guide roll, comprise parts such as bearing 4, axle 6, pressing plate 8, pressure ring 10, spacer ring 9, dividing plate 12, guide roller 11, also comprise bearing 5, locking nut 7, gland 3 and bolt 1, bearing 4 can be fixed on the inner-burr cleaning equipment and make it be in the operating position.Whole high-frequency straight welded pipe welding-seam guide roll is the assembling that is symmetrically arranged.
Axle 6 is the carrying and the coupling part of all parts, adopts non-magnetic stainless steel 304 materials to be made, and prevents the electromagnetism conducting of steel pipe body both sides and reduces the efficiency of heating surface, has prevented self times electromagnetic induction heating simultaneously and causes damage.Guide roller 11 is main stressed parts, whole in the form of annular discs, its material property and specification size directly influence weldquality and production efficiency, it adopts at present, and best cold roll material C r12MoV forms through heat treatment process, case hardness is very high, can guarantee to use for a long time and be not worn, the inclined-plane of certain angle is processed in its place that contacts with the steel pipe body, to be fit to the needs of body edge angle, its inboard is processed with concave surface, the dividing plate 12 of insulation can be installed in the inside and prevent slippage, 2 guide roller 11 symmetries are installed and used.Dividing plate 12 is in the form of annular discs, be installed in the centre of axle 6, adopt the nylon sheet of insulation to process, play insulating effect on the one hand, two guide rollers 11 are separated, prevent the conducting of electromagnetic induction field, self have certain intensity can bear bigger strength on the other hand, the body width difference that separates according to different steel pipe specification needs is processed with different thickness, can make guide roller obtain the support width that angular aperture needs.Pressure ring 10 is cylindric, mainly is auxiliary guide roller 11 work, and spacer ring 9 adopts the poly-PTFE of insulation to make, and mainly is to prevent conducting between guide roller 11 and the axle 6, plays insulating effect.In order dividing plate 12, guide roller 11, pressure ring 10, spacer ring 9 to be fixed on the axle 6 and to prevent from play to carry out locking positioning with pressing plate 8 and locking nut 7 at the two ends of spacer ring 9.Guide roller 11 will rotate with moving of steel pipe during operation, so bearing 5 (double-row self-aligning ball bearing) is installed at the two ends of axle 6, in order to prevent bearing 5 plaies, with gland 3, bolt 1 and elastic washer 2 inner ring of bearing 5 to be pushed down, the outer ring of bearing 5 is fixed on the bearing 4.For the ease of installing and fixing the weld seam guide roller, four bolts hole are arranged on the base plate of bearing 4, available bolt is fixed in the correct position of equipment.Bearing 4 is split into up and down two parts from bearings mounted center position, and anti-offset inclination arranged only detain step, these two parts connect with bolt, can change bearing or guide roller 11, dividing plate 12 etc. easily.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (8)
1. high-frequency straight welded pipe welding-seam guide roll, it is characterized in that: comprise axle, be socketed in a centre position dividing plate, be symmetricly set on the dividing plate both sides two guide rollers, be socketed in axle and go up the spacer ring that guide roller and axle are isolated, the two ends of described spacer ring adopt latch assembly to be fixed on the axle, and the two ends of axle adopt bearing to be connected on the bearing respectively.
2. high-frequency straight welded pipe welding-seam guide roll as claimed in claim 1, it is characterized in that: described axle adopts non-magnetic stainless steel 304 materials to be made, guide roller adopts the cold roll material to form through heat treatment process, and spacer ring adopts the poly-PTFE of insulation to make.
3. high-frequency straight welded pipe welding-seam guide roll as claimed in claim 1 is characterized in that: the two ends of described axle also are provided with the anti-play assembly that withstands bearing.
4. high-frequency straight welded pipe welding-seam guide roll as claimed in claim 3 is characterized in that: described anti-play assembly comprises the gland of pushing down bearing, gland is fixed on the screw of the end of axle.
5. high-frequency straight welded pipe welding-seam guide roll as claimed in claim 4 is characterized in that: also be provided with elastic washer between described screw and the gland.
6. as claim 1 or 2 or 3 or 4 or 5 described high-frequency straight welded pipe welding-seam guide rolls, it is characterized in that: also be provided with pressure ring between described guide roller and the spacer ring.
7. as claim 1 or 2 or 3 or 4 or 5 described high-frequency straight welded pipe welding-seam guide rolls, it is characterized in that: described latch assembly comprises two pressing plates that are separately positioned on the spacer ring two ends, with two locking nuts that two pressing plates are locked, and described locking nut adopts with axle and is threaded.
8. as claim 1 or 2 or 3 or 4 or 5 described high-frequency straight welded pipe welding-seam guide rolls, it is characterized in that: the inner face of described guide roller is processed with groove, and described dividing plate embeds in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101211606A CN101386116A (en) | 2008-10-13 | 2008-10-13 | High-frequency straight welded pipe welding-seam guide roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101211606A CN101386116A (en) | 2008-10-13 | 2008-10-13 | High-frequency straight welded pipe welding-seam guide roll |
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| Publication Number | Publication Date |
|---|---|
| CN101386116A true CN101386116A (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101211606A Pending CN101386116A (en) | 2008-10-13 | 2008-10-13 | High-frequency straight welded pipe welding-seam guide roll |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836412A (en) * | 2016-03-25 | 2016-08-10 | 李理 | Guide roller installation frame |
| CN107650392A (en) * | 2017-09-13 | 2018-02-02 | 安徽桑尼旅游休闲用品有限公司 | A kind of PE cloth film is moved with anti-string and is oriented to roll structure |
| CN110133453A (en) * | 2019-04-09 | 2019-08-16 | 国网浙江省电力有限公司电力科学研究院 | It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process |
| CN110842436A (en) * | 2019-11-14 | 2020-02-28 | 珠海格力智能装备有限公司 | Clamp and welding machine with same |
-
2008
- 2008-10-13 CN CNA2008101211606A patent/CN101386116A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836412A (en) * | 2016-03-25 | 2016-08-10 | 李理 | Guide roller installation frame |
| CN107650392A (en) * | 2017-09-13 | 2018-02-02 | 安徽桑尼旅游休闲用品有限公司 | A kind of PE cloth film is moved with anti-string and is oriented to roll structure |
| CN107650392B (en) * | 2017-09-13 | 2023-11-14 | 安徽桑尼旅游休闲用品有限公司 | PE cloth drenches membrane with preventing cluster and moves guide roll structure |
| CN110133453A (en) * | 2019-04-09 | 2019-08-16 | 国网浙江省电力有限公司电力科学研究院 | It is a kind of for observing the device of multilayer oil-impregnated paper insulation discharge process |
| CN110133453B (en) * | 2019-04-09 | 2021-06-11 | 国网浙江省电力有限公司电力科学研究院 | Device for observing insulating discharge process of multilayer oil-impregnated paper |
| CN110842436A (en) * | 2019-11-14 | 2020-02-28 | 珠海格力智能装备有限公司 | Clamp and welding machine with same |
| CN110842436B (en) * | 2019-11-14 | 2021-06-25 | 珠海格力智能装备有限公司 | Clamp and welding machine with same |
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Open date: 20090318 |