CN205165363U - Take reeler proscenium of prewhirl - Google Patents

Abstract

Take reeler proscenium of prewhirl relates to the metallurgical technology field, including fixed roll table subassembly and activity roll table subassembly, fixed roll table subassembly includes V forming roll, first motor, first support, activity roll table subassembly includes fixing support, and fixing support's top sets up a plurality of mobile support, and fixing support is last to connect vertical hydro -cylinder, and the flexible end of every table oil jar all is connected with corresponding mobile support, all connects the 2nd V forming roll in every mobile support's top, and the 2nd V forming roll arranges with the direction of advance one -tenth contained angle by the expansion hollow forging that the second motor is all connected to every the 2nd young one end of V forming roll. The hollow forging has three action at activity roll table part hollow forging: A. Rise, B. Gos forward along the hollow forging direction of advance, and C. Is rotatory. At the hollow forging reeler of biteeing smoothly to formation is stabilized after the as -rolled condition. Mobile support descends, lets the 2nd V forming roll and hollow forging break away from the contact to reduce the roll table wearing and tearing, extension roller life improves hollow forging expansion quality.

Description

With the reeling mill foreground of pre-rotation

Technical field

The utility model relates to metallurgical technology field, relates to a kind of seamless steel pipe hot-rolling equipment, particularly a kind of large aperture seamless steel pipe production reeling mill foreground.

Background technology

Reeler is as one of the capital equipment of seamless steel tube production.The reeling mill foreground that current most enterprises uses adopts following several mode to send famine to enter reeler: 1. accepted the hot hollow forging come from transitional facility by liftable V-type groove, then pushes away steel and sends into reeler rolling; 2. accepted the hot hollow forging come from transitional facility by liftable V-type roller-way (roller-way axis and hollow forging axes normal), then roller-way rotates and sends into reeler rolling.But along with the increase of steel pipe bore, first method because excessive to damaging after waste tube outer surface expansion, has a strong impact on quality after hollow forging expansion.Second method, because of the increase along with hollow forging bore, is nipped during expansion and is become more difficult.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of reeling mill foreground with pre-rotation is provided, by having the oblique cloth V-type roller of certain angle with hollow forging direction of advance, heavy caliber hollow forging is just fully rotated before hollow forging rolling nipped by reeler, be not easy to nip when solving large aperture hollow forging expansion, and quality after improving hollow forging expansion.

The purpose of this utility model is achieved in that the reeling mill foreground of band pre-rotation, comprises fixing roller-way assembly and movable roller-way assembly; Described fixing roller-way assembly comprises the first V-type roller, the first motor, the first bearing, and the first bearing is fixed on above basis, and the first V-type roll support is on the first bearing, and the first motor is connected to one end of the first V-type roller; Described movable roller-way assembly comprises the hold-down support be fixed on basis, the top of hold-down support arranges multiple movable bearing support, hold-down support connects the vertical oil cylinder equal with movable bearing support quantity, the telescopic end of every platform oil cylinder is all connected with corresponding movable bearing support, the second V-type roller is all connected above each movable bearing support, second V-type roller becomes angle to arrange with by the direction of advance of expansion hollow forging, and one end of every root second V-type roller all connects the second motor.

The utility model is arranged by above, treats material state at reeler, and it is the same high with the center of movable roller-way partial roller at this time to fix roller-way part, and fixing roller-way part is responsible for a hollow forging and is steadily transported to movable roller-way part.The hollow forging of rectilinear motion, after arrival activity roller-way part, is then transported by the second V-type roller of the oblique cloth of the second driven by motor.Because the second V-type roller of oblique cloth and hollow forging direction of advance have certain angle, the power of hollow forging both direction just given by such second V-type roller: A. hollow forging direction of motion power, and this card of trying hard to keep just moves on.B. the vertical power with the 2nd V roller axis, this power makes hollow forging rotate.Such hollow forging, just under the effect of these two kinds of power, has simple along hollow forging forward direction motion, becomes along hollow forging forward direction motion, rotary motion on one side.Thus make more easily to nip during hollow forging expansion, form stable rolling.

Detecting that hollow forging all leaves fixing roller-way part, after entering movable roller-way part, oil cylinder lifts, hollow forging rises along with the second V-type roller and rises, when after the stroke M that oil cylinder reaches default, movable bearing support stops lifting, and at this moment reeler rolling position just aimed at by hollow forging.Hollow forging continues to rotate while advance under the effect of the second V-type roller, the reeler until hollow forging is nipped smoothly, and forms journey stable rolling state.

The reeler once hollow forging is nipped smoothly, and form stable rolling state.Oil cylinder retraction distance N, drives movable bearing support decline N distance, allows the second V-type roller and hollow forging disengage, thus at utmost reduce roller-way wearing and tearing, extend roller service life, at utmost avoid hollow forging because and the second V-type roller friction and abrading, thus improve hollow forging expansion quality.

In sum: hollow forging is after the fixing roller-way part of disengaging, and enter movable roller-way part, have three action: A. to rise at movable roller-way part hollow forging, B. advances along hollow forging direction of advance, and C. rotates.To nip smoothly reeler at hollow forging, and after forming stable rolling state.Movable bearing support decline N distance, allows the second V-type roller and hollow forging disengage, thus at utmost reduces roller-way wearing and tearing, extends roller service life, at utmost avoid hollow forging because and the second V-type roller friction and abrading, thus improve hollow forging expansion quality.

In order to carry out leading and limit, arrange guider between each movable bearing support and hold-down support, guider comprises guide pillars and bushes, and guide pillar is fixedly connected on movable bearing support, and guide pin bushing is fixedly connected on hold-down support, and guide pillar is equipped with in guide pin bushing.

In order to oil cylinder can accurately lift and retract, equal connection bit displacement sensor on every platform oil cylinder.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the D-D direction view removing the second motor in Fig. 2.

Detailed description of the invention

As Figure 1-3, the reeling mill foreground of band pre-rotation, comprises fixing roller-way assembly 9 and movable roller-way assembly 10.

Fixing roller-way assembly 9 comprises the first V-type roller 1, first motor 14, first bearing 2, first bearing 2 and is fixed on above basis 3, and the first V-type roller 1 is supported on the first bearing 2, and the first motor 14 is connected to one end of the first V-type roller 1.

Movable roller-way assembly 10 comprises the hold-down support 5 be fixed on basis 12, the top of hold-down support 5 arranges multiple movable bearing support 4, hold-down support 5 connects the vertical oil cylinder 8 equal with movable bearing support 4 quantity, the telescopic end of every platform oil cylinder 8 is all connected with corresponding movable bearing support 4, equal connection bit displacement sensor 11 on every platform oil cylinder 8.Above each movable bearing support 4, all connect the second V-type roller 7, second V-type roller 7 becomes angle to arrange with by the direction of advance of expansion hollow forging 13, and one end of every root second V-type roller 7 all connects the second motor 15.

Arrange guider 6 between each movable bearing support 4 and hold-down support 5, guider 6 comprises guide pillar 6-1 and guide pin bushing 6-2, and guide pillar 6-1 is fixedly connected on movable bearing support 4, and guide pin bushing 6-2 is fixedly connected on hold-down support 5, and guide pillar 6-1 is equipped with in guide pin bushing 6-2.

Treat material state at reeler, it is the same high with the center of action roller road partial roller at this time to fix roller-way part, and fixing roller-way part is responsible for a hollow forging and is steadily transported to movable roller-way part.The hollow forging of rectilinear motion, after arrival action roller road part, drives the second V-type roller 7 of oblique cloth then to transport by the second motor 15.Because oblique cloth second V-type roller 7 and hollow forging direction of advance have certain angle, the power of hollow forging both direction just given by such second V-type roller 7: A. hollow forging direction of motion power, and this card of trying hard to keep just moves on.B. the vertical power with the second V-type V roller 7 axis, this power makes hollow forging rotate.Such hollow forging, just under the effect of these two kinds of power, by simple along hollow forging forward direction motion, becomes along hollow forging forward direction motion, and rotary motion on one side, as figure tri-.Thus make more easily to nip during hollow forging expansion, form stable rolling.

Detecting that hollow forging all leaves fixing roller-way part, after entering movable roller-way part, oil cylinder 8 lifts, and movable bearing support 4 limits owing to there being guider 6, thus lifts.Hollow forging 13 rises along with the second V-type roller 7 and rises, and when after the stroke M that oil cylinder 8 reaches default, movable bearing support 4 stops lifting, and at this moment reeler rolling position just aimed at by hollow forging.Hollow forging continues to rotate while advance under the effect of the second V-type roller 7, the reeler until hollow forging is nipped smoothly, and forms journey stable rolling state.

The reeler once hollow forging is nipped smoothly, and form stable rolling state.Oil cylinder 8 is retracted distance N, and drive movable bearing support 4 declines N distance, allows the second V-type roller 7 and hollow forging disengage, thus at utmost reduce roller-way wearing and tearing, extend roller service life, at utmost avoid hollow forging 13 because and the second V-type roller 7 rub and abrade, thus improve hollow forging expansion quality.

Claims (3)

1. be with the reeling mill foreground of pre-rotation, it is characterized in that: comprise fixing roller-way assembly and movable roller-way assembly; Described fixing roller-way assembly comprises the first V-type roller, the first motor, the first bearing, and the first bearing is fixed on above basis, and the first V-type roll support is on the first bearing, and the first motor is connected to one end of the first V-type roller; Described movable roller-way assembly comprises the hold-down support be fixed on basis, the top of hold-down support arranges multiple movable bearing support, hold-down support connects the vertical oil cylinder equal with movable bearing support quantity, the telescopic end of every platform oil cylinder is all connected with corresponding movable bearing support, the second V-type roller is all connected above each movable bearing support, second V-type roller becomes angle to arrange with by the direction of advance of expansion hollow forging, and one end of every root second V-type roller all connects the second motor.

2. the reeling mill foreground of band pre-rotation according to claim 1, it is characterized in that: between each movable bearing support and hold-down support, guider is set, guider comprises guide pillars and bushes, guide pillar is fixedly connected on movable bearing support, guide pin bushing is fixedly connected on hold-down support, and guide pillar is equipped with in guide pin bushing.

3. the reeling mill foreground of band pre-rotation according to claim 1, is characterized in that: equal connection bit displacement sensor on every platform oil cylinder.