CN102909461A

CN102909461A - Fine welding portal self-adaption driving device

Info

Publication number: CN102909461A
Application number: CN2012104483312A
Authority: CN
Inventors: 胡宜新
Original assignee: CHINA PETROCHEMICAL Corp JIANGHAN PETROLEUM ADMINISTRATION BUREAU SHASHI STEEL PIPE WORKS
Current assignee: Sinopec Oilfield Equipment Corp; Sinopec Petroleum Engineering Machinery Co Ltd Shashi Steel Pipe Works Branch
Priority date: 2012-11-12
Filing date: 2012-11-12
Publication date: 2013-02-06
Anticipated expiration: 2032-11-12
Also published as: CN102909461B

Abstract

The invention provides a fine welding portal self-adaption driving device. A transmission mechanism consisting of a transmission motor, a transmission shaft and a steering gear is installed at the top of a door-shaped rack, a nut seat is installed on a lead screw in the steering gear and is fixed on a lifting beam, two ends of a screw-down beam are respectively installed in two vertical guide rails of the lifting beam, two ends of the lifting beam are respectively installed in two lifting guide rails of two vertical posts of the door-shaped rack, two groups of screw-down cylinders and a balance cylinder are respectively arranged on the upper end of the lifting beam, tops of the two vertical posts of the door-shaped rack are respectively provided with a pulley, a steel wire rope passes through the pulley, one end of the steel wire rope is connected with a counterweight, the other end of the steel wire rope is connected with the lifting beam, a driving mechanism consists of the screw-down beam, a float beam, a driving roller, a driving motor, and an angling motor, and the whole driving mechanism goes up and down in the stroke range of the screw-down cylinder.

Description

Astute and able door frame self adaptation drive unit

Technical field

The present invention relates to mechanical field, specially refer to a kind of astute and able door frame self adaptation drive unit.

Background technology

Astute and able door frame self adaptation drive unit is the visual plant that astute and able unit is produced spiral steel pipe, is used for driving steel-pipe welding.The pre-astute and able production technology of spiral submerged arc is the production technology that drives single steel-pipe welding at roller-way, because steel pipe itself exists linearity, deviation from circular from, there is manufacturing and fixing error in the unit live-roller gear, these errors cause certain difficulty to the stabilized driving steel pipe, and addressing these problems has larger difficulty technically.Because pre-astute and able technique is the domestic new technology that adopts of just beginning in recent years, the employed astute and able unit of domestic colleague is roughly the same on design principle, all adopt the upper pressure type door frame of cylinder control to drive, the driven roller centralized positioning adapts to the variation of steel pipe horizontal level by swinging.There is following technological deficiency in this drive unit: the first, and driven roller adopts cylinder to depress, because cylinder bore is large, less air pressure change can cause the larger power of depressing to change, and is difficult to accomplish driving is depressed the accurate control of power; The second, because the compressibility that gas exists, driven roller is also undesirable to the advance shake control of middle generation of steel pipe; The 3rd, in case occurred level skew in steel pipe position when driving steel pipe, owing to being centralized positioning, driven roller can not be followed the steel pipe skew, can only adapt to by wallowing motion, and such structure is unfavorable for the stable control of steel pipe.At the astute and able unit of usefulness, the stability of driving is the key that guarantees welding quality at present.

Summary of the invention

The object of the present invention is to provide a kind of astute and able door frame self adaptation drive unit that adopts four small-bore oil cylinders to be respectively applied to control driven roller lifting and balance, its purpose is for solving the driving stability problem that exists in the astute and able process.

For achieving the above object, technical scheme of the present invention is:

A kind of astute and able door frame self adaptation drive unit, comprise steering gear, depress oil cylinder, depress crossbeam, crossbeam floats, riser guide, portal frame, driven roller, drive motors, angle electrical machinery, hydraulic damper, balancing cylinder, pulley, balancing weight, lift beam, vertical guide rail, adjust motor, power transmission shaft and driving motor, this device by driving motor, power transmission shaft, the transmission mechanism that steering gear forms is installed in the top of portal frame, on the screw mandrel in the steering gear nut seat is housed, nut seat is fixed on to be depressed on the crossbeam, the two ends of depressing crossbeam are contained in respectively in two vertical guide rails on the lift beam, and lifting in the stroke range of depress oil cylinder, the two ends of lift beam are contained in respectively in two riser guides on two columns of portal frame, two groups of depress oil cylinders and balancing cylinder are equipped with respectively in the lift beam upper end, a pulley respectively is equipped with at two column tops of portal frame, be installed with steel wire rope on the pulley, one end of steel wire rope is connected with balancing weight, the other end of steel wire rope is connected with lift beam, by depressing crossbeam, crossbeam floats, driven roller, drive motors and angle electrical machinery form driving mechanism, the lifting in the stroke range of depress oil cylinder of whole driving mechanism.

Described driving mechanism is equipped with unsteady crossbeam in the bottom of depressing crossbeam, depress between crossbeam and the unsteady crossbeam horizontal guide rail is housed, hydraulic damper is equipped with at the top of one end of unsteady crossbeam, an adjustment motor respectively is equipped with at the two ends of unsteady crossbeam, two angle electrical machineries are installed in respectively in two sliding seats, two sliding seats are installed on the crossbeam that floats, the output shaft of angle electrical machinery extend in the driven roller roller seat, between sliding seat and the driving roller seat pivoting support is housed, the driven roller roller seat is under the effect of angle electrical machinery, wraparound turns the supporting rotation, drive motors and driven roller are installed on the driven roller roller seat simultaneously, drive motors is positioned at the side of driven roller, and coaxial with driven roller.

Respectively there is a power transmission shaft at the two ends of driving motor in the described transmission mechanism, and the end of each power transmission shaft is connected with steering gear, and steering gear is connected with driving mechanism with nut seat by screw mandrel.

Good effect of the present invention is:

1, adopt the self adaptation drive roller arrangement of hydraulic control, driven roller and crossbeam deadweight are depressed power precisely controlled by special oil cylinder balance;

2, this device can be eliminated the shake in the steel pipe walking;

3, no matter be vertical direction or horizontal direction, driven roller can both be followed steel pipe and be floated;

4, hydraulic damper has effectively been controlled steel pipe and has been rocked in the horizontal direction the good stability of driving control.

Description of drawings

Fig. 1, astute and able door frame self adaptation drive unit front view;

Fig. 2, astute and able door frame self adaptation drive unit left view;

Fig. 3, astute and able door frame self adaptation drive unit partial structurtes schematic diagram; Fig. 4, driving mechanism connect the partial structurtes schematic diagram.

The specific embodiment

1-4 further specifies the specific embodiment of the present invention below in conjunction with accompanying drawing.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, start driving motor 22, power transmission shaft 23 by driving motor 22 both sides drives two steering gears 1, steering gear 1 drives nut seat 19 by screw mandrel 17, lift beam 18 is promoted along the riser guide 5 that is contained on the portal frame 6, drive simultaneously and depress crossbeam 3, crossbeam 4 floats, angle electrical machinery 10, drive motors 9 and driven roller 8 Integral liftings, steel pipe 7 is sent in the portal frame 6, driving motor 22, power transmission shaft 23 and steering gear 1 are by screw mandrel 17 and nut seat 19, drive lift beam 18, depress crossbeam 3, crossbeam 4 floats, angle electrical machinery 10, drive motors 9 and driven roller 8 integral body move down, and adjust the height of driven roller 8 by the specification of steel pipe 7, when transmission mechanism drives lift beam 18 and driving mechanism integral body and moves up and down, the steel wire rope 16 that is connected with lift beam 18 drives balancing weights 15 along pulley 14 and follows and move up and down, to alleviate the required load of driving motor 22.The specification that the adjustment motor 21 at crossbeam 4 two ends of floating press steel pipe 7, with about two driven rollers 8 adjust spacing, during adjustment, unsteady crossbeam 4 can move horizontally at horizontal guide rail 12.Under the effect of depress oil cylinder 2 and balancing cylinder 13, depress crossbeam 3 and move down along vertical guide rail 20, drive simultaneously float crossbeam 4, angle electrical machinery 10, drive motors 9 and driven roller 8 and move down, until driven roller 8 stops after touching steel pipe 7.The angle electrical machinery 10 that is installed on the sliding seat 24 rotates, drive pivoting support 25 and be contained in driven roller 8 90-degree rotation angles on the driven roller roller seat 26, drive motors 9 startups this moment, steel pipe 7 is sent into position to be welded in the portal frame 6, and after steel pipe 7 was carried and put in place, driven roller 8 promoted, angle electrical machinery 10 is depressed after driven roller 8 is adjusted to required angle, driven roller 8 drives steel pipe 7 and does the circumference rotation, seeks the welding starting point of spiral weld, and adjusts soldering tip.Then driven roller 8 promotes, and angle electrical machinery 10 is adjusted and driven angles to the spiral angle of required welding, depresses and starts drive motors 9, drives steel pipe 7 spiral on roller-way and advances, and implements the spiral weld welding.When steel pipe 7 when the middle appearance of advancing slowly swings, hydraulic damper 11 is not had an effect, in case rocking appears in advancing in steel pipe 7, when producing rapid load change, hydraulic damper 11 starts at once, plays the effect of rocking of restriction steel pipe 7.

Claims

1. astute and able door frame self adaptation drive unit, comprise steering gear (1), depress oil cylinder (2), depress crossbeam (3), crossbeam (4) floats, riser guide (5), portal frame (6), driven roller (8), drive motors (9), angle electrical machinery (10), hydraulic damper (11), horizontal guide rail (12), balancing cylinder (13), pulley (14), balancing weight (15), steel wire rope (16), screw mandrel (17), lift beam (18), nut seat (19), vertical guide rail (20), adjust motor (21), power transmission shaft (23), driving motor (22), sliding seat (24), pivoting support (25) and driving roller seat (26), it is characterized in that: by driving motor (22), power transmission shaft (23), the transmission mechanism that steering gear (1) forms is installed in the top of portal frame (6), on the screw mandrel (17) in the steering gear (1) nut seat (19) is housed, nut seat (19) is fixed on the lift beam (18), the two ends of depressing crossbeam (3) are contained in respectively in two vertical guide rails (20) on the lift beam (18), and lifting in the stroke range of depress oil cylinder (2), the two ends of lift beam (18) are contained in respectively in two riser guides (5) on (6) two columns of portal frame, two groups of depress oil cylinders (2) and balancing cylinder (13) are equipped with respectively in lift beam (18) upper end, a pulley (14) respectively is equipped with at two column tops of portal frame (6), be installed with steel wire rope (16) on the pulley (14), one end of steel wire rope (16) is connected with balancing weight (15), the other end of steel wire rope (16) is connected with lift beam (18), by depressing crossbeam (3), crossbeam (4) floats, driven roller (8), drive motors (9) and angle electrical machinery (10) form driving mechanism, the lifting in the stroke range of depress oil cylinder (2) of whole driving mechanism.

2. astute and able door frame self adaptation drive unit according to claim 1, it is characterized in that: described driving mechanism is equipped with unsteady crossbeam (4) in the bottom of depressing crossbeam (3), depress between crossbeam (3) and the unsteady crossbeam (4) horizontal guide rail (12) is housed, hydraulic damper (11) is equipped with at the top of one end of unsteady crossbeam (4), an adjustment motor (21) respectively is equipped with at the two ends of unsteady crossbeam (4), two angle electrical machineries (10) are installed in respectively in two sliding seats (24), two sliding seats (24) are installed on the unsteady crossbeam (4), the output shaft of angle electrical machinery (10) extend in the driven roller roller seat (26), between sliding seat (24) and the driving roller seat (26) pivoting support (25) is housed, driven roller roller seat (26) is under the effect of angle electrical machinery (10), wraparound turns supporting (25) rotation, drive motors (9) is installed on the driven roller roller seat (26) simultaneously with driven roller (8), drive motors (9) is positioned at the side of driven roller (8), and coaxial with driven roller (8).

3. astute and able door frame self adaptation drive unit according to claim 1, it is characterized in that: respectively there is a power transmission shaft (23) at the two ends of driving motor in the described transmission mechanism (22), the end of each power transmission shaft (23) is connected with steering gear (1), and steering gear (1) is connected with driving mechanism with nut seat (19) by screw mandrel (17).