CN201543688U - Pipe end ovality correcting device for large-caliber longitudinal welded pipe - Google Patents
Pipe end ovality correcting device for large-caliber longitudinal welded pipe Download PDFInfo
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- CN201543688U CN201543688U CN2009202109709U CN200920210970U CN201543688U CN 201543688 U CN201543688 U CN 201543688U CN 2009202109709 U CN2009202109709 U CN 2009202109709U CN 200920210970 U CN200920210970 U CN 200920210970U CN 201543688 U CN201543688 U CN 201543688U
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- pipe end
- ovality
- correcting device
- pipe
- uoe
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Abstract
The utility model relates to a pipe end ovality correcting device for a large-caliber longitudinal welded pipe, which corrects the excessive ovality of the end of the pipe by adopting the method of exerting jacking extrusion on the inner surface of the pipe along the direction of the minor axis. The device mainly comprises a top expansion actuating mechanism and a moving and lifting mechanism. The pipe end ovality correcting device can flexibly correct the pipes the ends of which have excessive ovality at the work field, and can improve the qualification rate of the ovality of the ends of the pipes.
Description
Technical field
The utility model device belongs to the auxiliary equipment technical field of steel pipe mechanical, relate in particular to a kind of pipe end ovality correcting device of the UOE of being applicable to UOE, be used for the overproof UOE UOE of pipe end ovality is carried out the set round correction, make it reach the relevant parameters requirement.
Background technology
UOE large-diameter steel pipe (the Uing-Oing method of forming) range of application is very wide, not only is applied to lay length apart from the high pressure oil/gas pipe line, and has expanded to gas, and liquid is carried ore, cereal, oil, coal as motive force.In engineering construction, be used for seabed tunnel, seabed piling, breakwater and offshore production platform etc. also are used for high-pressure bottle, holster shell etc. in other field.
Petroleum gas is carried and is used welded still pipe.The UOE production line adopts the Uing-Oing moulding process, and the steel pipe after the moulding adopts five three interior soldering equipments, and four three outer soldering equipments can adopt machinery expanding or hydraulic pressure hole enlargement according to customer requirement after the welding, improve dimensional accuracy, remove internal stress.
The pipe end ovality index of large-diameter steel pipe is a very important parameter in the steel products such as UOE steel pipe.Pipe end ovality requirement during the straight-line joint submerged arc welding tube technical conditions that adopt according to the pipeline engineering of PetroChina Company Ltd. transfering natural gas from the west to the east two wires require, the ovality (being the difference of maximum outside diameter and minimum outer diameter and the ratio of nominal external diameter) of steel pipe should be not more than 0.6% in the pipe end 100mm scope.Its purpose is to make it can finish welding smoothly when two pipes carry out the pipe arrangement welding procedure in the open air.Otherwise, if the pipe end ovality exceeds standard, will cause the difficulty of two pipe butt welding, promptly enable butt welding together, also can produce very big residual stress, cause the mechanical performance of commissure to descend, reduced pipeline security in use, so the steel pipe that the pipe end ovality exceeds standard cannot use.
At present, all there is the pipe end ovality phenomenon that exceeds standard in domestic nearly all steel pipe in the UOE UOE unit production of producing, and its reason relates to supplied materials Wide and Thick Slab performance and plate shape, and production technologies such as shaping, welding and hole enlargement.
After pipe that the pipe end ovality exceeds standard occurred, the production scene can be taked usually pipe recalled to and be carried out the exceed standard method of part of hole enlargement once more or excision pipe pipe end ovality and revise the ovality of pipe end.And generally, the number of tubes that the pipe end ovality exceeds standard is many, approximately will account for 10% of total amount, so the ovality correction meeting of adopting above method to carry out pipe end has had a strong impact on the efficient and the recovery rate of production line.
At present, had a lot of patents and document to propose relevant pipe end ovality modification method and device, for example patent No. JP59127927A has proposed a kind of pipe end out of roundness correcting device.
As shown in Figure 4, this device has adopted from inner surface of tube to extending out the top, pipe is held round the method for correction.Wherein be fixed on the fixed disk by keeping tool and mount pad with contacted roller one end of inner surface of tube, the other end is connected to cylinder by pull bar and hinge.The action of drawing by cylinder can realize roller 1 to extending out the action that the top holds round steel pipe, revise the ovality of pipe end with this.Yet the version of this kind device is mainly used in the correction of small-caliber steel pipe pipe end ovality.Simultaneously, by the roller structure of inner surface of tube contact as can be seen, this device is smaller to the extent of amendment of pipe end ovality, does not reach the requirement that the ovality in the UOE UOE pipe end 100mm scope is revised.
Patent JP55144336A has proposed another method and device that the pipe end shape and size are corrected.
As shown in Figure 5, wherein, support ring 1 is made of two semicircles, can be installed in and leave pipe end 200mm place.Hydraulic cylinder is installed on the cylindrical circumference of support ring, and quantity is 3.Jockey is used to connect hydraulic cylinder piston rod and expander correcting device.This device need be heated to 300 ℃ with pipe end 50mm scope place when carrying out pipe end correction operation, hydraulic cylinder 5 is drawn in the expander correcting device according to required circularity and size then, revises the ovality of pipe pipe end with this.After the correction operation was finished, pipe end at room temperature cooled off, and hydraulic cylinder is counteragent then, extracts mould, disconnected then connecting, and pulled down correcting device.This device uses inconvenience, and the operation process complexity is not suitable for the correction of UOE UOE pipe end ovality equally.
Patent 88107835.2 has proposed a kind of pipe end ovality antidote and device of large-diameter steel pipe.
As shown in Figure 6, it mainly carries out hole enlargement by priority to the pipe pipe end, undergauge, and these two steps are finished the correction of pipe pipe end ovality.The correction ratio of precision of this device is higher, but its structure relative complex, the manufacturing cost height is revised the operation process complexity, uses very flexible, and efficient is low.
At present, it is the problem that each manufacturer all faces that the pipe end ovality of UOE UOE exceeds standard, and it has had a strong impact on the recovery rate of pipe and the efficient of production line,
Therefore, for the production scene, develop a kind of simple in structure, operating flexibility, easy to operate, the pipe end ovality correcting device of revising the high UOE UOE of efficient is very important.
Summary of the invention
For overcoming the problems referred to above, the purpose of this utility model is: propose a kind of pipe end ovality correcting device of UOE UOE, adopted the mode that the inner surface of tube short-axis direction is extruded to realize the correction that pipe pipe end ovality exceeds standard.This device is mainly formed by expanding top executing agency and mobile elevating machine two parts.The pipe that the scene can be exceeded standard to the pipe end ovality is flexibly effectively revised operation, improves the qualification rate of pipe pipe end ovality.
The technical solution of the utility model is as follows:
A kind of pipe end ovality correcting device of UOE, described pipe end ovality correcting device comprises
Expand top executing agency, it is characterized in that, described expansion top executing agency comprises: hydraulic pressure unit, the die unit and scale unit three parts that are equipped with hydraulic pressure unit, described hydraulic pressure unit is used for the pipe end of UOE is made ellipse short shaft to pushing, by hydraulic cylinder, the oil pump that is connected with this hydraulic cylinder, Pressure gauge assembly and oil pipe are formed.
According to UOE pipe end ovality correcting device of the present utility model, described expansion top executing agency is the correction performance element of pipe end ovality correcting device, and short-axis direction extrudes pipe in pipe, carries out ovality correction operation.The hydraulic pressure unit of described expansion top executing agency provides the power of pipe ovality correction, and it is mainly by hydraulic cylinder, oil pump, and Pressure gauge assembly and oil pipe are formed.Pressure gauge is used for the variation that operating personnel monitor operation process pressure.
Pipe end ovality correcting device according to UOE of the present utility model, it is characterized in that, the die unit of described expansion top executing agency comprises: expand very useful upper die and lower die, be arranged at the upper and lower backing plate of described patrix below and counterdie top respectively, be arranged at the upper junction plate of described upper padding plate below and the lower connecting plate of upper padding plate top respectively.Hydraulic cylinder is between last lower connecting plate.
Above-mentioned die unit then is the last hypomere that is connected hydraulic cylinder, in operation process, directly contacts with the inner surface of pipe minor axis.Pipe end ovality correcting device according to UOE of the present utility model is characterized in that, described scale unit comprises that order is positioned at the last scale frame of described expansion top executing agency one side, following scale frame and be arranged at scale between two scale frames.
Said scale partly is mainly used in the deflection of pipe short-axis direction in operating personnel's observational record operation process.
Pipe end ovality correcting device according to UOE of the present utility model is characterized in that, described pipe end ovality correcting device also comprises mobile elevating machine.
Pipe end ovality correcting device according to UOE of the present utility model, it is characterized in that, described mobile elevating machine comprises: little kickstand, be arranged at the lifting hydraulic cylinder on the little kickstand, by the crane that lifting hydraulic cylinder drives, it directly is connected with expansion top executing agency by connector.
Mobile elevating machine is an auxiliary unit of this device, is used to carry expand top executing agency and enter pipe end from position of readiness, after operation is finished, carries and expands top executing agency and break away from pipe end and get back to and treat the seat in the plane.It has comprised lifting unit and travelling car unit.
Lifting unit is connected with expansion top executing agency, and carries its rise and fall.It has comprised hydraulic cylinder, manual operation pump, guide rail, support etc.Travelling car then is to be used to carry expand each several part such as top executing agency and move, and can stretch into pipe end 100mm place with expanding top executing agency.It has comprised support and universal wheel etc.
Pipe end ovality correcting device according to UOE of the present utility model is characterized in that described mobile elevating machine comprises: the manual pump rocking bar of lifting hydraulic cylinder.
Pipe end ovality correcting device according to UOE of the present utility model is characterized in that described mobile elevating machine comprises: the roller that is arranged at mobile hoisting mechanism bottom.
According to UOE pipe end ovality correcting device of the present utility model, described UOE pipe end ovality correcting device overall structure is simple, low cost of manufacture; Simple to operate, operating flexibility safety can support the production of allegro on-the-spot UOE, can effectively improve the qualification rate of pipe pipe end ovality.
Description of drawings
Fig. 1 is the expansion top executing agency in the UOE UOE pipe end ovality correcting device;
Fig. 2 is the mobile elevating machine in the UOE UOE pipe end ovality correcting device;
Fig. 3 is the operation schematic diagram of UOE UOE pipe end ovality correcting device;
Fig. 4 is pipe end out of roundness correcting device one example in the past.
Fig. 5 is the another example of pipe end out of roundness correcting device in the past.
Fig. 6 is the another example of pipe end out of roundness correcting device in the past.
Among the figure, 1: patrix, 2: upper padding plate, 3: upper junction plate, 4: expand the top hydraulic cylinder, 5: lower connecting plate, 6: counterdie, 7: lower bolster, 8: following scale frame, 9: scale, 10: go up scale frame, 11: support, 12: lifting hydraulic cylinder, 13: crane, 14: the dolly front-wheel, 15: little back wheels of vehicle, 16: expand top hydraulic cylinder electrodynamic pump stand, 17: lifting hydraulic cylinder manual pump rocking bar, 18: expand top hydraulic cylinder manual pump stand, 19: rollgang, 20: steel pipe, 21: expand top executing agency, 22: connector, 23: mobile elevating machine, 24: oil pipe, 25: Pressure gauge, 26: expand top hydraulic cylinder manual pump, 27: expand top hydraulic cylinder electrodynamic pump, 28: workbench.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail for specific embodiment.
Embodiment 1
Fig. 1 is the schematic three dimensional views that expands top executing agency in the UOE UOE pipe end ovality correcting device of the present utility model.Wherein 4 for expanding the critical piece single-action hydraulic cylinder of top executing agency, and according to analog computation, having selected load is 50t, and stroke is the hydraulic cylinder of 150mm.
In the stroke of the 150mm of above-mentioned hydraulic cylinder 4,80mm is an effective travel, promptly extrudes the stroke of pipe minor axis, and 70mm is auxiliary stroke, i.e. lost motion.1,6 for expanding the upper die and lower die of top executing agency, directly contacts with steel pipe short-axis direction inner surface in the correction operation process, extrudes the inner surface of tube minor axis, revises the ovality of pipe.
In the present embodiment, the width of upper and lower mould is 180mm, to reach the purpose of correction apart from the ellipticity error of pipe pipe end 100mm distance.According to different pipe specifications, can select the upper and lower mould of different size, but enlarge the scope of operation pipe.
3 for expanding the upper junction plate of top executing agency, is used to connect the piston and the patrix of hydraulic cylinder, mainly is connected with screw by bolt and finishes.5 for expanding the lower connecting plate of top executing agency, is used to connect the cylinder barrel and the counterdie of hydraulic cylinder, is connected with screw by bolt equally.
In the executing agency of whole expansion top, lower connecting plate has also played regulates the effect of expanding top executing agency total length, to adapt to the steel pipe of different tube diameters.2,7 for expanding the last lower bolsters of top executing agency, and its thickness specification has two kinds of 10mm and 20mm, is used to finely tune expand the length of pushing up executing agency.Except that above main body expands roof construction, expand top executing agency scale portion also has been installed, be used to write down the deflection that expands the top, carry out the recording and tracking of data.It has comprised last scale frame 10, scale 9 and following scale frame 8..Wherein go up scale frame 10 and scale 9 along with the patrix motion, the following scale frame 8 that has pointer then is fixed on the lower connecting plate 5, and by the relative motion of scale 10 and pointer, the operator can read corresponding deflection numerical value.
Fig. 2 is the mobile elevating machine schematic three dimensional views in the UOE UOE pipe end ovality correcting device.Be used for expansion top executing agency is sent into and shift out pipe end.Wherein 11 is little kickstand.12,13 are respectively lifting hydraulic cylinder and crane, have formed the elevating mechanism of dolly jointly, and it directly is connected with expansion top executing agency by connector.17 is the manual pump rocking bar of lifting hydraulic cylinder, and the operator can control the rising and the whereabouts of elevating mechanism easily by it, thereby realizes expanding the lifting and the whereabouts of top executing agency.14,15 is the roller of mobile hoisting mechanism, realizes its locomotive function.In addition, on the support 11 of mobile elevating machine, also arrange the stand 18 that expands top hydraulic cylinder manual pump, expanded the stand 16 of top hydraulic cylinder electrodynamic pump, be used to place corresponding expansion top hydraulic cylinder manual pump, expanded top hydraulic cylinder electrodynamic pump, handled easily person's operation.
Fig. 3 is the operation schematic diagram of UOE UOE pipe end ovality correcting device.Wherein 19,20,28 be respectively steel pipe, rollgang and workbench are revised the operation station as one herein.Expand the expansion top hydraulic cylinder in the executing agency 21 of top, manual pump 26, Pressure gauge 25 and oil pipe 24 have been formed the manual control hydraulic circuit that expands the top hydraulic cylinder jointly, and the power that the pipe short-axis direction is extruded is provided.
In addition, if with electrodynamic pump 27, Pressure gauge 25 and oil pipe 24 are combined, and can form the electronic control hydraulic circuit that expands the top hydraulic cylinder.The pluses and minuses of these two kinds of hydraulic circuits are to adopt manual control hydraulic circuit can better control the stroke that expands the top, and it is excessive to prevent to expand the top, but operator's labour intensity is big with respect to electronic control hydraulic circuit.And electronic control hydraulic circuit operator can realize that by button control expansion pushes work, has reduced labour intensity, but relatively poor for the control of expanding the top line journey.
Be operating as example with manual pump below pipe pipe end correction operation process be described in detail in detail:
(1) body arrives the manual detection station, promptly revises the operation station.Operating personnel measure the pipe end major and minor axis.Exceed standard as ovality, then body rests on this station, and the body minor axis is rotated to 12 directions.
(2) mobile elevating machine carries and expands top executing agency, and it is pushed between the roller of ovality correction station from position of readiness.
(3) will expand top executing agency with mobile elevating machine and be promoted to height and position a little more than pipe internal surface bottom.
(4) move expansion top executing agency and enter pipe end to desired location.
(5) will expand top executing agency with mobile elevating machine and drop to steel pipe internal-surface.
(6) push the manual pump that is positioned on the mobile hoisting mechanism, with patrix jack-up, the inner surface that begins to expand the sub-minor axis of push pipe carries out the ovality correction operation of pipe end, needs to observe manometric variation in the operation process.
(7) reading by scale can determine whether to reach the expansion top deflection of setting.
(8) after deflection is set in arrival, pressurize a period of time.
(9) open the manual relief valve that expands top hydraulic cylinder manual pump with little aperture, expand top hydraulic cylinder pressure release, wait patrix to descend gradually, get back to original position after, close manual relief valve.
(10) will expand top executing agency with mobile elevating machine and lift slightly, and carry it and withdraw from pipe end.
(11) mobile elevating machine will expand top executing agency and reduce to low level, and pusher side be got back in its translation treated the seat in the plane.
According to UOE pipe end ovality correcting device of the present utility model, described UOE pipe end ovality correcting device overall structure is simple, low cost of manufacture; Simple to operate, operating flexibility safety can support the production of allegro on-the-spot UOE, can effectively improve the qualification rate of pipe pipe end ovality.
Claims (8)
1. the pipe end ovality correcting device of a UOE, described pipe end ovality correcting device comprises expansion top executing agency, it is characterized in that, described expansion top executing agency (21) comprising: hydraulic pressure unit, the die unit and scale unit three parts that are equipped with hydraulic pressure unit, described hydraulic pressure unit is used for the pipe end of UOE is made ellipse short shaft to pushing, by hydraulic cylinder (4), the oil pump (27) that is connected with this hydraulic cylinder, Pressure gauge assembly (25) and oil pipe (24) are formed.
2. UOE pipe end ovality correcting device as claimed in claim 1, described expansion top executing agency is the correction performance element of pipe end ovality correcting device, short-axis direction extrudes pipe in pipe, carries out ovality correction operation.
3. the pipe end ovality correcting device of UOE as claimed in claim 1, it is characterized in that, the die unit of described expansion top executing agency (21) comprising: expand very useful patrix (1) and counterdie (6), be arranged at the upper and lower backing plate (2) of described patrix (1) below and counterdie (6) top respectively, (7), be arranged at the upper junction plate (3) of described upper padding plate (2) below and the lower connecting plate (5) of upper padding plate (7) top respectively; Hydraulic cylinder (4) is positioned between lower connecting plate (3), (5).
4. the pipe end ovality correcting device of UOE as claimed in claim 1, it is characterized in that, described scale unit comprises that order is positioned at the last scale frame (10) of described expansion top executing agency one side, following scale frame (8) and be arranged at scale (9) between two scale frames.
5. the pipe end ovality correcting device of UOE as claimed in claim 1 is characterized in that, described pipe end ovality correcting device also comprises mobile elevating machine (23).
6. the pipe end ovality correcting device of UOE as claimed in claim 5, it is characterized in that, described mobile elevating machine (23) comprising: little kickstand (11), be arranged at the lifting hydraulic cylinder (12) on the little kickstand (11), by the crane (13) that lifting hydraulic cylinder (12) drives, it directly is connected with expansion top executing agency by connector.
7. the pipe end ovality correcting device of UOE as claimed in claim 5 is characterized in that, described mobile elevating machine (23) comprising: the manual pump rocking bar (17) of lifting hydraulic cylinder.
8. the pipe end ovality correcting device of UOE as claimed in claim 5 is characterized in that, described mobile elevating machine 23 comprises: be arranged at the roller (14) of mobile hoisting mechanism bottom, (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202109709U CN201543688U (en) | 2009-10-20 | 2009-10-20 | Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202109709U CN201543688U (en) | 2009-10-20 | 2009-10-20 | Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
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| CN201543688U true CN201543688U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202109709U Expired - Fee Related CN201543688U (en) | 2009-10-20 | 2009-10-20 | Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550516A (en) * | 2014-12-15 | 2015-04-29 | 南京航空航天大学 | Steel pipe cold diameter expanding straightening method |
| CN106111825A (en) * | 2016-08-24 | 2016-11-16 | 中冶辽宁德龙钢管有限公司 | A kind of Portable steel pipe expander and diameter enlarging method |
| CN106180280A (en) * | 2016-08-31 | 2016-12-07 | 中国重型机械研究院股份公司 | A kind of for heavy caliber seamless steel pipe end diameter-setting equipment and method |
| CN106216444A (en) * | 2016-08-31 | 2016-12-14 | 中国重型机械研究院股份公司 | A kind of for seamless steel pipe end internal-and external diameter diameter-setting equipment |
| CN106552838A (en) * | 2015-09-30 | 2017-04-05 | 宝山钢铁股份有限公司 | A kind of pipe end rounding device |
| CN107537885A (en) * | 2017-10-11 | 2018-01-05 | 湘潭华进科技股份有限公司 | A kind of metal pipe material multifunctional intellectual school shape dress is standby |
| CN111843383A (en) * | 2020-07-16 | 2020-10-30 | 嘉善迈德机械有限公司 | Manufacturing process of self-lubricating bearing |
-
2009
- 2009-10-20 CN CN2009202109709U patent/CN201543688U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550516A (en) * | 2014-12-15 | 2015-04-29 | 南京航空航天大学 | Steel pipe cold diameter expanding straightening method |
| CN104550516B (en) * | 2014-12-15 | 2016-07-06 | 南京航空航天大学 | The cold expanding method for aligning of steel pipe |
| CN106552838A (en) * | 2015-09-30 | 2017-04-05 | 宝山钢铁股份有限公司 | A kind of pipe end rounding device |
| CN106111825A (en) * | 2016-08-24 | 2016-11-16 | 中冶辽宁德龙钢管有限公司 | A kind of Portable steel pipe expander and diameter enlarging method |
| CN106180280A (en) * | 2016-08-31 | 2016-12-07 | 中国重型机械研究院股份公司 | A kind of for heavy caliber seamless steel pipe end diameter-setting equipment and method |
| CN106216444A (en) * | 2016-08-31 | 2016-12-14 | 中国重型机械研究院股份公司 | A kind of for seamless steel pipe end internal-and external diameter diameter-setting equipment |
| CN106180280B (en) * | 2016-08-31 | 2018-03-13 | 中国重型机械研究院股份公司 | One kind is used for heavy caliber seamless steel pipe end sizing method |
| CN106216444B (en) * | 2016-08-31 | 2018-05-22 | 中国重型机械研究院股份公司 | One kind is used for seamless steel pipe end internal-and external diameter diameter-setting equipment |
| CN107537885A (en) * | 2017-10-11 | 2018-01-05 | 湘潭华进科技股份有限公司 | A kind of metal pipe material multifunctional intellectual school shape dress is standby |
| CN111843383A (en) * | 2020-07-16 | 2020-10-30 | 嘉善迈德机械有限公司 | Manufacturing process of self-lubricating bearing |
| CN111843383B (en) * | 2020-07-16 | 2022-05-17 | 嘉善迈德机械有限公司 | Manufacturing process of self-lubricating bearing |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20161020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |