CN103203362A

CN103203362A - Clasping roll mechanism used during seamless steel pipe production

Info

Publication number: CN103203362A
Application number: CN2013100982551A
Authority: CN
Inventors: 王付杰; 双远华; 胡建华; 孙京超; 师玲玲; 周研
Original assignee: Taiyuan University of Science and Technology
Current assignee: Taiyuan University of Science and Technology
Priority date: 2013-03-26
Filing date: 2013-03-26
Publication date: 2013-07-17
Anticipated expiration: 2033-03-26
Also published as: CN103203362B

Abstract

The invention discloses a clasping roll mechanism used during seamless steel pipe production, and belongs to the field of seamless steel pipe production equipment. The clasping roll mechanism is characterized in that the bottom of a left clasping roll seat and the bottom of a right clasping roll seat are connected onto a bottom plate, each of the left clasping roll seat and the right clasping roll seat is provided with three hinge pin holes which are respectively drilled at 120-degree positions of the same circumference, the three hinge pin holes on the left clasping roll seat correspond to the three hinge pin holes on the right clasping roll seat, one of the three hinge pin holes of each clasping roll seat is arranged on the center line of a notch, three hinge pins are mounted in the three hinge pin holes of each clasping roll seat, a rocker arm is mounted at the left end of each hinge pin, clasping rolls are mounted at ends of the rocker arms, pinions are respectively mounted at right ends of the three hinge pins of each clasping roll seat, pin holes are drilled on lower portions of inner gear rings which are meshed with the three pinions of each clasping roll seat, the hinge pins arranged in the pin holes are connected with sliders, the sliders are mounted in slider guide grooves, the slider guide grooves are connected with ends of connecting rods, and the other ends of the connecting rods are connected with piston rods of hydraulic (or pneumatic) cylinders. After the hydraulic (or pneumatic) cylinders are driven, the clasping rolls can be driven to rotate, and the purpose of clasping mandrels or steel pipes is achieved. The clasping roll mechanism has the advantages that the clasping roll mechanism is simple in structure, convenient to maintain and use and suitable for small-scale production and laboratories.

Description

Armful roller mechanism in the seamless steel tube production

Technical field

The invention belongs to the seamless steel pipe production field, be specifically related to the roller mechanism of embracing in the seamless steel tube production.

Background technology

Three rollers of the prior art are embraced roller mechanism, and its function is to hold push rod or plug tightly, or hold hollow billet or hollow forging tightly, its center line coincides with rolling centerline all the time, can conveniently turn over from rolling centerline after unclamping, and its shortcoming is complex structure, spatial volume is bigger, requires the machining accuracy height, and is with high costs.

Summary of the invention

The object of the invention provides a kind of roller mechanism of embracing of new construction, can overcome the deficiency that prior art exists.

The present invention is achieved in that as Fig. 1, shown in 2, box-shaped, centre have "

" shape notch 6 about embrace roller seat 2,2 ' the bottom is connected with base plate 1 by bolt respectively, about press 120 on the same circumference on armful roller seat 2,2 ' the plate face

Division is shaped on three pin shaft holes, one of them be located at "

" on the center line of shape notch 6; about to embrace roller seat symmetrical; embracing roller seat with the right side is example: be separately installed with first, second and third bearing pin 3,3 ', 3 ' in three pin shaft holes ', at first, second and third bearing pin 3,3 ', 3 ' ' is separately installed with first, second and third Rocker arm 4,4 ', 4 ' '; About embrace on the symmetrical rocking arm of roller seat first, second and third armful roller 5,5 ', 5 ' is installed ', first, second and third bearing pin 3,3 ', 3 ' of installing on the roller seat is embraced on the right side ' right-hand member be separately installed with first, second and third pinion 7,7 ', 7 ' ', with first, second and third pinion 7,7 ', 7 ' ' ring gear 8 that is meshed is installed in the right right-hand member of embracing roller seat 2 ', trim ring 9 fastens ring gear 8, and trim ring 9 is connected right embracing on the roller seat 2 ' by bolt.Also have notch on the ring gear 8, with about the notch 6 embraced on the roller seat corresponding, lower vertical center line at ring gear 8 has pin-and-hole, bearing pin 10 is housed in pin-and-hole, bearing pin 10 right-hand members are connected with slide block 11, and slide block 11 is installed in the slide block guide groove 12, can move up and down, slide block guide groove 12 is connected with the end of connecting rod 13, and the other end of connecting rod 13 is connected with the piston rod of hydraulic pressure (or air pressure) cylinder.

Advantage of the present invention and good effect are simple in structure, and energy consumption is low, maintenance and easy to adjust, safe and reliable, and low cost of manufacture is applicable to the use of small lot batch manufacture and laboratory.

Description of drawings

Fig. 1 is structure diagram of the present invention.

Fig. 2 is structural profile schematic diagram of the present invention.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is A-A cutaway view among Fig. 2.

Fig. 5 is the ring gear schematic diagram.

Fig. 6 is the right roller seat schematic diagram of embracing.

Among the figure: 1---base plate, 2,2 '---about embrace roller seat, 3,3 ', 3 ' '---first, second and third bearing pin, 4,4 ', 4 ' '---first, second and third rocking arm, 5,5 ', 5 ' '---first, second and third armful roller, 6---notch, 7,7 ', 7 ' '---first, second and third pinion, 8---ring gear, 9---trim ring, 10---bearing pin, 11---slide block, 12---the slide block guide groove, 13---connecting rod, 14---bearing, 15---hollow billet.

The specific embodiment

As Fig. 1,2, shown in 3, when hydraulic pressure (or air pressure) cylinder drive link 13 moves forward, driving slide block guide groove 12 moves, it is mobile in slide block guide groove 12 to drive slide block 11, driving ring gear 8 rotates, drive be meshed with gear ring first, two, three pinions 7,7 ', 7 ' ' rotate, by be connected with three pinions first, two, three bearing pins 3,3 ', 3 ' ' rotate drive connected first, two, three Rocker arm 4s, 4 ', 4 ' ' swing, drive first, two, three armfuls of rollers 5,5 ', 5 ' ' rotate around rolling centerline, reach the purpose of holding plug or hollow billet tightly; Otherwise with the withdrawal of hydraulic pressure (or air pressure) cylinder, the lead agency backward rotation reaches the requirement of unclamping.

Claims

1. embrace roller mechanism in the seamless steel tube production, its architectural feature is, box-shaped, centre have "

" shape notch (6) about embrace roller seat (2,2 ') the bottom is connected with base plate (1) by bolt respectively, about press 120 on the same circumference on armful roller seat (2,2 ') the plate face

Division is shaped on three pin shaft holes, one of them be located at " " on the center line of shape notch (6); about to embrace roller seat symmetrical; embracing roller seat with the right side is example; be separately installed with first in three pin shaft holes; two; three bearing pins (3,3 ', 3 ' '), first, two, three bearing pins (3,3 ', 3 ' ' be separately installed with first), two, three rocking arms (4,4 ', 4 ' '), about embrace on the symmetrical rocking arm of roller seat and be equipped with first, two, three armfuls of rollers (5,5 ', 5 ' '), the right side embrace install on the roller seat first, two, three bearing pins (3,3 ', 3 ' ' right-hand member) is separately installed with first, two, three pinions (7,7 ', 7 ' '), with first, two, three pinions (7,7 ', 7 ' ' ring gear that) is meshed (8) is installed in the right right-hand member of embracing roller seat (2 '), trim ring (9) fastens ring gear (8), trim ring (9) is connected right embracing on the roller seat (2 ') by bolt, also have on the ring gear (8) notch with about the notch (6) embraced on the roller seat corresponding, lower vertical center line at ring gear (8) has pin-and-hole, bearing pin (10) is housed in pin-and-hole, bearing pin (10) right-hand member is connected with slide block (11), slide block (11) is installed in the slide block guide groove (12), can move up and down, slide block guide groove (12) is connected with the end of connecting rod (13), and the other end of connecting rod (13) is connected with the piston rod of hydraulic pressure (or air pressure) cylinder.