CN201324753Y

CN201324753Y - Novel pinch roll

Info

Publication number: CN201324753Y
Application number: CNU2008202279160U
Authority: CN
Inventors: 赵亚东; 张艳茹
Original assignee: TONGZE SYSTEM EQUIPMENT CO Ltd TAIYUAN
Current assignee: TONGZE SYSTEM EQUIPMENT CO Ltd TAIYUAN
Priority date: 2008-12-13
Filing date: 2008-12-13
Publication date: 2009-10-14
Anticipated expiration: 2018-12-13

Abstract

The utility model belongs to a seamless steel pipe hot rolling facility and relates to a novel pinch roll, which solves the technical problem that the pin roll of the foreground of the existing pipe mill can not economically meet the lateral feed of a three-roll centering device. A first pin roll (2), a second pin roll (17) and a third pin roll (13) which are arranged in an obtuse triangle are fixedly arranged on an L-shape frame (1); the middle part of a first oscillating arm (4) is hinged together with the first pin roll (2); the middle part of a second oscillating arm (19) is hinged together with the second pin roll (17); the middle part of a third oscillating arm (12) is hinged together with the third pin roll (13); the lower surface of one end of the first oscillating arm (4) is fixedly provided with a first pinch roll (6); the upper surface of one end of the second oscillating arm (19) is fixedly provided with a second pinch roll (2!); the first pitch roll (6) and the second pinch roll (21) are matched to pinch a hollow billet (22). The conveying function of the steel pipe is economically and reasonably met.

Description

A kind of novel pinch roll

Technical field

The present invention relates to a kind of roll seamless steel tube production equipment, particularly the foreground pinch roll of seamless steel pipe pipe mill.

Background technology

The existing pinch roll that is used for the pipe mill foreground is the circular arc roller that horizontally disposed two axis of tradition tilt, by the hydraulic motor transmission, the folding of Driven by Hydraulic Cylinder pinch roll, realization pinches material, but the pinch roll of this structure is for three-roller centring device, because three-roller centring device requires the side direction charging, this pinch roll structure is not as influencing charging like this, will prolong foreground equipment, equipment investment increasing and operating cost are increased.

Summary of the invention:

The pinch roll that the invention solves existing pipe mill foreground can not satisfy the technical problem of the side direction charging of three-roller centring device economically.

The present invention is achieved by the following technical programs:

A kind of novel pinch roll, comprise L shaped frame 1, first bearing pin 2 that on L shaped frame 1, fixedly installs, second bearing pin 17 and the 3rd bearing pin 13, these three bearing pins triangle in obtuse angle distribute, and lay respectively at the place, three summits of this obtuse triangle, the middle part of first swing arm 4 and first bearing pin 2 are hinged, the middle part of second swing arm 19 and second bearing pin 17 are hinged, the middle part of the 3rd swing arm 12 and the 3rd bearing pin 13 are hinged, below an end of described first swing arm 4, be set with clutch shaft bearing seat 5, be provided with first pinch roll 6 in this clutch shaft bearing seat 5, on an end of described second swing arm 19, be set with second bearing block 20, be provided with second pinch roll 21 in this second bearing block 20, angle α 23 between the axis of the axis of first pinch roll 6 and second pinch roll 21 is an acute angle, first pinch roll 6 and second pinch roll 21 cooperate realizes pinching hollow billet 22, the other end in first swing arm 4 is provided with the first flexible connection groove 7, the other end in second swing arm 19 is set with the 4th bearing pin 15, end in the 3rd swing arm 12 is provided with the second flexible connection groove 11, the other end in the 3rd swing arm 12 is provided with the 5th bearing pin 14, one end of connecting rod 16 is hinged by the 4th bearing pin 15 and second swing arm 19, the other end of connecting rod 16 is hinged by an end of the 5th bearing pin 14 and the 3rd swing arm 12, on the frame between first swing arm 4 and the 3rd swing arm 12, be set with double piston-rod constant speed hydraulic cylinder 9, the upper end output shaft of this double piston-rod constant speed hydraulic cylinder 9 by first flexibly connect in the groove 7 movable be provided with first to be movably hinged axle 8 and first swing arm 4 hinged, the lower end output shaft of this double piston-rod constant speed hydraulic cylinder 9 by second flexibly connect in the groove 11 movable be provided with second to be movably hinged the 10 and the 3rd swing arm 12 hinged.

Described first bearing pin 2 is arranged in the axle sleeve 3 of first bearing pin, and second bearing pin 17 is arranged in the axle sleeve 18 of second bearing pin.

The present invention compares with existing pinch roll structure, can guarantee that steel pipe successfully enters the pipe mill foreground, does not prolong the equipment foreground again, has satisfied the conveying function of steel pipe economically.

Description of drawings:

Fig. 1 is a structural representation of the present invention

Fig. 2 is a vertical view of the present invention

The specific embodiment:

Below in conjunction with the description of drawings specific embodiment:

A kind of novel pinch roll, comprise L shaped frame 1, first bearing pin 2 that on L shaped frame 1, fixedly installs, second bearing pin 17 and the 3rd bearing pin 13, these three bearing pins triangle in obtuse angle distribute, and lay respectively at the place, three summits of this obtuse triangle, the middle part of first swing arm 4 and first bearing pin 2 are hinged and can be around this bearing pin swing, the middle part of second swing arm 19 and second bearing pin 17 are hinged and can be around this bearing pin swing, the middle part of the 3rd swing arm 12 and the 3rd bearing pin 13 are hinged and can be around this bearing pin swing, below an end of described first swing arm 4, be set with clutch shaft bearing seat 5, be provided with first pinch roll 6 in this clutch shaft bearing seat 5, on an end of described second swing arm 19, be set with second bearing block 20, be provided with second pinch roll 21 in this second bearing block 20, angle α 23 between the axis of the axis of first pinch roll 6 and second pinch roll 21 is an acute angle, first pinch roll 6 and second pinch roll 21 cooperate realizes pinching hollow billet 22, the other end in first swing arm 4 is provided with the first flexible connection groove 7, the other end in second swing arm 19 is set with the 4th bearing pin 15, end in the 3rd swing arm 12 is provided with the second flexible connection groove 11, the other end in the 3rd swing arm 12 is provided with the 5th bearing pin 14, one end of connecting rod 16 is hinged by the 4th bearing pin 15 and second swing arm 19, the other end of connecting rod 16 is hinged by an end of the 5th bearing pin 14 and the 3rd swing arm 12, on the frame between first swing arm 4 and the 3rd swing arm 12, be set with double piston-rod constant speed hydraulic cylinder 9, the upper end output shaft of this double piston-rod constant speed hydraulic cylinder 9 by first flexibly connect in the groove 7 movable be provided with first to be movably hinged axle 8 and first swing arm 4 hinged, the lower end output shaft of this double piston-rod constant speed hydraulic cylinder 9 by second flexibly connect in the groove 11 movable be provided with second to be movably hinged axle the 10 and the 3rd swing arm 12 hinged, double piston-rod constant speed hydraulic cylinder 9 is by driving first swing arm (4) and the 3rd, second swing arm realizes the folding of first pinch roll 6 and second pinch roll 21, thereby finishes pinching hollow billet 22.Described first bearing pin 2 is arranged in the axle sleeve 3 of first bearing pin, and second bearing pin 17 is arranged in the axle sleeve 18 of second bearing pin.

Claims

1, a kind of novel pinch roll, comprise L shaped frame (1), first bearing pin (2) that on L shaped frame (1), fixedly installs, second bearing pin (17) and the 3rd bearing pin (13), these three bearing pins triangle in obtuse angle distribute, and lay respectively at the place, three summits of this obtuse triangle, the middle part of first swing arm (4) and first bearing pin (2) are hinged, the middle part of second swing arm (19) and second bearing pin (17) are hinged, the middle part of the 3rd swing arm (12) and the 3rd bearing pin (13) are hinged, it is characterized in that: below an end of described first swing arm (4), be set with clutch shaft bearing seat (5), be provided with first pinch roll (6) in this clutch shaft bearing seat (5), on an end of described second swing arm (19), be set with second bearing block (20), be provided with second pinch roll (21) in this second bearing block (20), angle α (23) between the axis of the axis of first pinch roll (6) and second pinch roll (21) is an acute angle, first pinch roll (6) and second pinch roll (21) cooperate realizes pinching hollow billet (22), the other end in first swing arm (4) is provided with the first flexible connection groove (7), the other end in second swing arm (19) is set with the 4th bearing pin (15), end in the 3rd swing arm (12) is provided with the second flexible connection groove (11), the other end in the 3rd swing arm (12) is provided with the 5th bearing pin (14), one end of connecting rod (16) is hinged by the 4th bearing pin (15) and second swing arm (19), the other end of connecting rod (16) is hinged with an end of the 3rd swing arm (12) by the 5th bearing pin (14), on the frame between first swing arm (4) and the 3rd swing arm (12), be set with double piston-rod constant speed hydraulic cylinder (9), the upper end output shaft of this double piston-rod constant speed hydraulic cylinder (9) by first flexibly connect in the groove (7) movable be provided with first to be movably hinged axle (8) hinged with first swing arm (4), second of movable setting in the groove (11) is movably hinged spool (10) to the lower end output shaft of this double piston-rod constant speed hydraulic cylinder (9) and the 3rd swing arm (12) is hinged by flexibly connecting second.

2, a kind of novel pinch roll according to claim 1 is characterized in that: described first bearing pin (2) is arranged in the axle sleeve (3) of first bearing pin, and second bearing pin (17) is arranged in the axle sleeve (18) of second bearing pin.