CN1103820A - Straightening machine for special steel tube - Google Patents
Straightening machine for special steel tube Download PDFInfo
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- CN1103820A CN1103820A CN 93115975 CN93115975A CN1103820A CN 1103820 A CN1103820 A CN 1103820A CN 93115975 CN93115975 CN 93115975 CN 93115975 A CN93115975 A CN 93115975A CN 1103820 A CN1103820 A CN 1103820A
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Abstract
The invented machine is suitable to the special shaped steel tube whose finishing alignment end diameter is larger or smaller than the diameter of tube body, or analogus staircase tube on multi-diameter tube. In the machine the rotating driving apparatus, multiple groups of supporting roller group and one straightening roller group are assembled in a same housing railrest. The steel tube for finishing alignment is made to turn by the clamping rotating driving apparatus and held by the supporting roller, the applied pressure of the straightening roller to the cantilever section of the steel tube is regulated to achieve the finishing alignment. Said invention features flexible alignment regulation, good quality, and high efficient. The deviation is less than 0.1 mm after refining aligment.
Description
The present invention relates to a kind of straightening machine for special steel tube, particularly relate to end diameter and be greater than or less than Steel Tube Specials such as pipe diameter or similar stepped pipe, rotation pressurization straightener belongs to metallurgical product finishing aligning pipe plant equipment.
Mostly pipe straightener of the prior art is the cross roll multi roll, promptly go up row's roller and arrange with the lower roll cross-interleaved, rotation in the same way, steel pipe in the spiral revolution, be subjected to up-down rollers pressure to form repeatedly elastic-plastic is out of shape, reach the body finishing and align purpose.In the production practices, often need finishing aligning end diameter greater than pipe diameter, perhaps less than pipe diameter, the perhaps special pipes such as body of similar stepped a plurality of diameters, but the cross roll multi-roll straightening machine lacks the function that this class special pipe is aligned in finishing.As: Chinese patent CN87105049A, disclosing a kind of multi-roll straightening machine on May 25th, 1988 is staggered up and down by multiple roll and is the cantilever roll leveller, its objective is the end and the afterbody of steel pipe are aligned, with adjacent two rollers is one group, every group is staggered up and down, have and shorten the advantage of rectifying the dead zone, steel pipe head and afterbody are fully aligned, eliminate negative torque, improve lumber recovery, its deficiency is powerless greater than the aligning of Steel Tube Specials such as pipe diameter or the similar stepped pipe of many diameters to end diameter.Industrial commonly used as: the blank of petroleum geology drill pipe, for end diameter greater than pipe diameter, usually with welding or jumping-up, appellation major part pipe, often crooked, torticollis, the deviation that has reaches 3～5mm, brings processing difficulties to next procedure, need carry out the finishing aligning.For solving the finishing aligning of this class special pipe, the public use of SUMITOMO CHEMICAL Juki Corporation a kind of cross roll multi-roll straightening machine, utilize photoelectric sensor, at any time adjust the distance between up-down rollers in the aligning along with the variation of caliber, when major diameter partly by the time, upper straightening roll is lifted relieving, by after depress upper straightening roll again, but in fact finishing aligning purpose is failed to reach in the end, can only align body portion.This is an an open question still so far.
The objective of the invention is to provide a kind of finishing straightening machine for special steel tube, can comprise that end diameter is greater than or less than pipe diameter by the finishing aligning, and the straightener of the Steel Tube Special of similar stepped many diameters.
The object of the present invention is achieved like this:
Equip the drive unit of steel pipe at an end of frame, it is by known chucking whirligig and has at least two groups of support roller groups to be constituted, the steel pipe in one group of support roller group outside is aligned the cantilever segment of part therein, the debending roll group is arranged, and this roller group is adjusted the screw rod and the buffer spring of debending roll by electric-motor drive worm screw, worm gear and core nut thereof on " L " shape support, driving; Each support roller group is star-arrangement by three support roller and forms in the hexagon support, by an electric-motor drive.
The present invention can also realize by following measure:
The debending roll adjustment of debending roll group is that the worm gear core of this reductor is a nut, the adjustment screw rod of transmission debending roll and buffer spring thereof and debending roll support by worm screw of an electric-motor drive, worm reduction gear on " L " shape support.Debending roll support upper end connects with spring, and the different structure of single debending roll or two debending rolls is made in the lower end.
Every group of support roller group, be star-arrangement by three support roller, be assembled on the hexagon support, by a motor by the four pairs of bevel gears and two groups of coupling spindles and bearing block thereof, three worm and wormwheel reductors of transmission simultaneously, each worm gear core are the nut adjustment screw rod and the roller frame of each support roller of transmission respectively, and each support roller is made up of roller shell, axle, bearing and support roller frame, two slide plates are arranged on the support roller frame, in hexagon support slideway, slide in company with support roller.
The present invention is because debending roll is when being tightened on drive unit by the aligning steel pipe and rotating, when adjusting to the rotating speed that needs, exert pressure to the cantilever segment sweep and to form repeatedly elastic-plastic distortion, reach the aligning purpose, therefore adjust flexibly, finishing straightening quality height, as to the oil drilling pipe, be commonly referred to the torticollis of major part pipe or crooked deviation 3～5mm even arrive 10mm greatly, can reach deviation＜0.1mm behind the aligning, can satisfy the basic demand of its next procedure car screw thread, it is big to have overcome past artificial pressure machine aligning labour intensity, the efficient low quality is poor, and the shortcoming that deviation is big has satisfied the finishing of Steel Tube Special and aligned.
The invention will be further described below in conjunction with drawings and Examples:
The drawing of accompanying drawing is described as follows:
Fig. 1 is a kind of concrete structure longitudinal profile of straightening machine for special steel tube of the present invention schematic diagram.
Fig. 2 is the cutaway view of Fig. 1 straightening machine for special steel tube along the A-A line.
Fig. 3 is the cutaway view of Fig. 1 straightening machine for special steel tube along the B-B line.
Fig. 4 is the another kind of embodiment of the present invention, another structure cutaway view that Fig. 1 analyses and observe along the A-A line.
See figures.1.and.2, a kind of straightening machine for special steel tube that is used for the finishing end diameter greater than pipe diameter, by the known chucking whirligig (11) of the lathe head of a bed and the rotating driving device of two groups of support roller groups (7) and (29) formation quilt aligning steel pipes (8) of being similar to, the outside in support roller group (7), the cantilever segment of steel pipe (8) has debending roll group (1), this debending roll group (1) and support roller group (7), (29) and chucking whirligig (11), is assembled on the frame rail chair that does not provide among the same figure.
Debending roll group (1), by straightening roller shell and running in bearings (28) thereof, debending roll support (12), helical spring (2), screw rod (5), worm screw (3) and worm gear and core nut (4) thereof, reduction box (13) is formed, with " L " shape support (18) top that is loaded on the fastening frame rail chair that does not provide in the drawings.With reference to Fig. 2, on " L " shape support (18), by motor (16), screw rod (5) and support (12) are adjusted in shaft coupling (17), worm and wormwheel reductor (13) transmission, make debending roll (1) contact by aligning steel pipe (8), and rotate along with the rotation of steel pipe (8).In the reductor (13), (with reference to Fig. 1) worm screw (3) transmission worm gear (4), core nut drive debending roll adjustment screw rod (5) of this worm gear (4) and support (12) and the epicoele inner spring (2) thereof that the end is connected thereof, when operation, rotate to when requiring rotating speed at steel pipe (8), actuating motor (16), make debending roll (1) by adjusting screw rod (5) holddown spring (2) support (12), with contacted and exert pressure by aligning steel pipe (8), reach steel pipe (8) and in rotation, obtain aligning.The debending roll work center line of " L " shape support and horizontal line angle are 30 ° or 45 °, and debending roll support (12) is made the different structure of single roller or two rollers, change at any time by instructions for use.
The structure structure of each support roller group is identical, each is star-arrangement by three support roller (7) or (29), is assembled on the hexagon frame (14) support (15) of support roller (7) or (29), by screw rod (9) and worm screw (6), worm gear (10) transmission.
With reference to Fig. 3, by the support roller motor (19) that is fastened on hexagon frame (14) the upper level transmission on the frame rail chair, shaft coupling (20) transmission worm and wormwheel reductor (21), by four pairs of identical bevel gears (221), (222), (223), (224), two groups of identical power transmission shafts (231), (232) and bearing block (241), (242), (243), (244), transmission is two worm and wormwheel reductors (25) and (26) in addition, each support roller of the worm gear of each reductor (10) core nut (referring to Fig. 1) transmission is adjusted screw rod (9), drive support roller support (15), under the driving of motor (19), three support roller are tightened up simultaneously or are decontroled.Each support roller (7) or (29) structure structure is identical, is assembled in respectively separately on the support (15) by bearing (27).
Respectively there are slide plate (30) and (31) in the both sides of support (15), reach in (33) in company with the slideway (32) of support roller in hexagon support (14) and slide.
During operation; start support roller motor (19); decontrol support roller (7) or (24); return debending roll (1); tightened by chucking rotating driving device (11) by an end of aligning steel pipe (8); start support roller motor (19) again; make each support roller make up; embrace steel pipe (8), start drive unit (11), transfer to and require rotating speed; start debending roll motor (16); transmission debending roll (1) is exerted pressure to steel pipe (8) cantilever segment of rotation gradually, makes its alternating bending in rotation form the elastic-plastic distortion, and pressure is ascending; descending again; leave steel pipe up to debending roll, reach and shut down after purpose is aligned in finishing, finish the end aligning.Equally, align the stepped pipe of many diameters when finishing, perhaps, end diameter has equal finishing leveling effect equally less than different Steel Tube Specials such as pipe diameters.
With reference to Fig. 4, another kind of embodiment of the present invention shows that debending roll (1) is assembled in the duty of single roller support (12).
Motor (16), shaft coupling (17), worm and wormwheel reductor (13), drive screw (5) drive debending roll support (12) and debending roll (1), the steel pipe that (8) are aligned.
Claims (5)
1, a kind of finishing aligning straightening machine for special steel tube that is used for, rearrange by frame, multiple roll group, it is characterized in that being aligned the drive unit of steel pipe, be by tightening whirligig and having at least two groups of support roller groups to constitute, the steel pipe in one group of support roller group outside is aligned cantilever segment partly therein the debending roll group, this roller group drives the screw rod and the buffer spring of debending roll by electric-motor drive worm screw, worm gear and core nut thereof on " L " shape support; Each support roller group is star-arrangement by three support roller and forms in the hexagon support, by an electric-motor drive.
2, straightening machine for special steel tube according to claim 1, it is characterized in that the adjustment of debending roll group, by worm screw of an electric-motor drive, the worm reduction gear on " L " shape support, the worm gear core of this reductor is a nut, the adjustment screw rod of transmission debending roll and buffer spring thereof and debending roll support;
3, according to claim 1 or the described straightening machine for special steel tube of claim 2, it is characterized in that the debending roll group is made up of straightening roller shell and running in bearings thereof and debending roll support, the debending roll support is made single roller or double roller structure, and buffer spring is arranged in the epicoele.
4, straightening machine for special steel tube according to claim 1, it is characterized in that the support roller group, every group is star-arrangement by three support roller, be assembled on the hexagon support, by a motor, by four pairs of bevel gears and two groups of coupling spindles and bearing block thereof, three worm and wormwheel reductors of transmission simultaneously, each worm gear core is a nut, and each support roller of transmission is adjusted screw rod and support roller frame respectively.
5, according to claim 1 or the described straightening machine for special steel tube of claim 4, each support roller that it is characterized in that the support roller group is made up of roller shell, axle, bearing and support roller frame, has two slide plates to slide in the slideway of hexagon support in company with support roller on the support roller frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115975 CN1103820A (en) | 1993-12-15 | 1993-12-15 | Straightening machine for special steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115975 CN1103820A (en) | 1993-12-15 | 1993-12-15 | Straightening machine for special steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103820A true CN1103820A (en) | 1995-06-21 |
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ID=4991504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93115975 Pending CN1103820A (en) | 1993-12-15 | 1993-12-15 | Straightening machine for special steel tube |
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| Country | Link |
|---|---|
| CN (1) | CN1103820A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289560A (en) * | 2014-08-21 | 2015-01-21 | 湖州南浔中盛金属热处理有限公司 | Heat treatment steel tube straightening machine |
| CN106623503A (en) * | 2015-07-30 | 2017-05-10 | 惠山区前洲双谐机械配件厂 | Round bar straightening machine |
| CN112474889A (en) * | 2020-12-21 | 2021-03-12 | 东台市高科技术创业园有限公司 | Nonrust steel pipe straightener of longitudinal adjustment formula |
-
1993
- 1993-12-15 CN CN 93115975 patent/CN1103820A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289560A (en) * | 2014-08-21 | 2015-01-21 | 湖州南浔中盛金属热处理有限公司 | Heat treatment steel tube straightening machine |
| CN104289560B (en) * | 2014-08-21 | 2016-06-08 | 湖州南浔中盛金属热处理有限公司 | Heat treatment steel tube straightening machine |
| CN106623503A (en) * | 2015-07-30 | 2017-05-10 | 惠山区前洲双谐机械配件厂 | Round bar straightening machine |
| CN112474889A (en) * | 2020-12-21 | 2021-03-12 | 东台市高科技术创业园有限公司 | Nonrust steel pipe straightener of longitudinal adjustment formula |
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