CN203316480U

CN203316480U - Roll for single-line cold rolling mill

Info

Publication number: CN203316480U
Application number: CN2013203170908U
Authority: CN
Inventors: 丁仲楼; 沈培新; 周洪波; 周洪泽
Original assignee: Changzhou Xinya Stainless Steel Pipe Co Ltd
Current assignee: Changzhou Xinya Stainless Steel Pipe Co Ltd
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2013-12-04
Anticipated expiration: 2023-05-31

Abstract

The utility model relates to a roll for a single-line cold rolling mill. The roll comprises an upper roll block, a lower roll block, an upper roll shaft, a lower roll shaft, an upper base, a lower base, end-face keys, gear sets, bearings and bearing seats. The upper roll block and the lower roll block are respectively provided with a rolling groove, the upper roll block is mounted on the upper roll shaft through the end-face key, and the lower roll block is mounted on the lower roll shaft through the end-face key; the bearings are respectively arranged at two ends of the upper roll shaft and the lower upper shaft, the bearings on the upper roll shaft are mounted in the bearing seat on the upper base, and the bearings on the lower roll shaft are mounted in the bearing seat on the lower base; the gear sets are respectively mounted at one end of the upper roll shaft and one end of the lower roll shaft, the gear set on the upper roll shaft and the gear set on the lower roll shaft are disposed on the different sides, and each gear set comprises a main gear and a pinion. The rolling groove is in the shape of an annular hole. The roll is simple in structure, convenient to demount and change, long in service life and flexible to use.

Description

Roll for the single line cold pilger mill

Technical field

The utility model relates to a kind of roll device, particularly a kind of roll device for the single line cold pilger mill.

Background technology

Seamless steel pipe is common metallurgical metallic article, be divided into two kinds of double-roller type and multi rolls for the cold pilger mill of the cold rolling production of seamless steel pipe, wherein the double-roller type roll device adopts upper and lower roll to form, the most complex structure of existing this roll device, not quick detachable and replacing, and use underaction, be difficult to meet the rolling requirement of the big or small steel pipe of difference, most of double-roller type roll devices adopt multi-thread roll to raise the efficiency, but the stressed burden of the roll mandrel that this rolling mode increases, the service life of having reduced roll mandrel.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, for convenience detach and replacing, long service life and uses flexibly the roll device for the single line cold pilger mill.

The technical scheme that realizes the utility model purpose is as follows:

A kind of roll device for the single line cold pilger mill, comprise the topping roll piece, the bottom roll piece, the topping roll axle, the bottom roll axle, upper frame and lower support, also comprise straight end-face key, gear train, bearing and bearing block, respectively be provided with a tube rolling groove on described topping roll piece and bottom roll piece, described topping roll piece is arranged on the topping roll axle by straight end-face key, described bottom roll piece is arranged on the bottom roll axle by straight end-face key, on described, bottom roll axle two ends all are provided with bearing, bearing on described topping roll axle is arranged in the bearing block in upper frame, bearing on described bottom roll axle is arranged in the bearing block in lower support, on described, the bottom roll axle respectively has an end that gear train is installed, gear train on described topping roll axle and the gear train on the bottom roll axle be not in the same side, described gear train is comprised of gear wheel and pinion.

Described tube rolling groove is the annular distance type.

After adopting said structure, the utility model is simple in structure, for convenience detach and renewal part, gear wheel is applicable to little pipe and is rolled down to little production tube, pinion is applicable to large pipe and is rolled down to the great achievement QC, the utility model adopts the single-line type roll, increase the service life of roll mandrel, reduced the use cost of roll device.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

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

In figure: 1 is the topping roll piece, and 2 is the bottom roll piece, and 3 is the topping roll axle, and 4 is the bottom roll axle, and 5 is straight end-face key, and 6 is gear train, and 7 is bearing, and 8 is bearing block, and 9 is the tube rolling groove, and 10 is gear wheel, and 11 is pinion, and 12 is upper frame, and 13 is lower support.

The specific embodiment

There is the known the utility model of Fig. 1 to comprise topping roll piece 1 for the roll device of single line cold pilger mill, bottom roll piece 2, topping roll axle 3, bottom roll axle 4, upper frame 12 and lower support 13, also comprise straight end-face key 5, gear train 6, bearing 7 and bearing block 8, respectively be provided with a tube rolling groove 9 on described topping roll piece 1 and bottom roll piece 2, described topping roll piece 1 is arranged on topping roll axle 3 by straight end-face key 5, described bottom roll piece 2 is arranged on bottom roll axle 4 by straight end-face key 5, on described, bottom roll axle two ends all are provided with bearing 7, bearing 7 on described topping roll axle 3 is arranged in the bearing block 8 in upper frame 12, bearing 7 on described bottom roll axle 4 is arranged in the bearing block 8 in lower support 13, on described, the bottom roll axle respectively has an end that gear train 6 is installed, gear train on described topping roll axle 3 and the gear train on bottom roll axle 4 be not in the same side, described gear train 6 is comprised of gear wheel 10 and pinion 11.Described tube rolling groove 9 is the annular distance type.

The utility model is simple in structure, for convenience detach and renewal part, and gear wheel is applicable to little pipe and is rolled down to little production tube, pinion is applicable to large pipe and is rolled down to the great achievement QC, the utility model adopts the single-line type roll, has increased the service life of roll mandrel, has reduced the use cost of roll device.

Claims

1. the roll device for the single line cold pilger mill, comprise topping roll piece (1), bottom roll piece (2), topping roll axle (3), bottom roll axle (4), upper frame (12) and lower support (13), it is characterized in that: also comprise straight end-face key (5), gear train (6), bearing (7) and bearing block (8), respectively be provided with a tube rolling groove (9) on described topping roll piece (1) and bottom roll piece (2), described topping roll piece (1) is arranged on topping roll axle (3) by straight end-face key (5), described bottom roll piece (2) is arranged on bottom roll axle (4) by straight end-face key (5), on described, bottom roll axle two ends all are provided with bearing (7), bearing (7) on described topping roll axle (3) is arranged in the bearing block (8) in upper frame (12), bearing (7) on described bottom roll axle (4) is arranged in the bearing block (8) in lower support (13), on described, the bottom roll axle respectively has an end that gear train (6) is installed, gear train on gear train on described topping roll axle (3) and bottom roll axle (4) is not in the same side, described gear train (6) is comprised of gear wheel (10) and pinion (11).

2. a kind of roll device for the single line cold pilger mill according to claim 1, it is characterized in that: described tube rolling groove (9) is the annular distance type.