CN103817174A

CN103817174A - Rectifying device for large-sized unstable aluminum alloy sections

Info

Publication number: CN103817174A
Application number: CN201410054373.7A
Authority: CN
Inventors: 黄维勇; 陈�峰; 张超; 汪恩辉; 葛东辉; 赵西韩; 徐驰; 左雁冰; 何潜; 常瑜; 刘杰
Original assignee: China National Heavy Machinery Research Institute Co Ltd
Current assignee: China National Heavy Machinery Research Institute Co Ltd
Priority date: 2014-02-18
Filing date: 2014-02-18
Publication date: 2014-05-28

Abstract

A rectifying device for large-sized unstable aluminium alloy sections comprises a symmetric arrangement roll system comprising 12 straightening rolls, the straightening rolls are connected with straightening roll full-transmission driving devices and are mounted in a combined rack in a top-bottom symmetric arrangement manner, upper ends of the straightening rolls are equipped with six upper roll press-down devices, four lower roll press-up devices are arranged at the lower ends of the straightening rolls, two ends of the rack are connected with a fixing support in a matched manner, the fixing support is connected with a foundation screw, the adjustment of the upper roll press-down devices and the lower roll press-up devices allow for the adjustment of roll gaps and inflection amount, the straightening roll full-transmission driving devices drive the straightening rolls to realize gripping and straightening of sections via the twelve straightening rolls and rectification of cross section of the can be realized through the symmetric straightening rolls. Straightening accuracy and section size accuracy of the existing sections can be increased, and scrap from instability and surface strain caused during straightening process can be avoided for large-sized irregular aluminium and aluminum alloy sections.

Description

-kind of the strong engagement positions for the easy unstability aluminium alloy extrusions of large specification

Technical field

The present invention relates to nonferrous metallurgical equipment field, particularly-kind of strong engagement positions for the easy unstability aluminium alloy extrusions of large specification, the high accuracy that is mainly used in large specification aluminium and aluminum alloy quenching section bar, section complex shapes is rectified whole.

Background technology

With 7-11 roller not etc., upper and lower smoothing roll is interlaced arrangement to the equipment for straightening smoothing roll number of traditional aluminium and aluminium alloy extrusions, and the kind of drive is half transmission, and only having lower roll transmission, top roll is driven roll.Exist rectify after on the low side, the section material section of the linearity of section bar can not obtain the defect of accurately correcting, particularly in the large specification irregular section bar of aligning, occur that section bar unstability is scrapped with Surface of profile to pull phenomenon.Need be with the development of special aluminium section bar straightener in conjunction with certain military project, the opposed layout of exploitation smoothing roll, roller number are full transmission aluminium and the aluminium alloy extrusions straightener of 12 rollers.Effectively raise and rectify the rear large linearity of specification section bar and the dimensional accuracy of section material section, solved the high accuracy aligning problem of easy unstability section bar, avoided large specification irregular section bar in aligning process, to occur the phenomenon that pull on surface.

Summary of the invention

In order to overcome the defect of above-mentioned prior art, the object of this invention is to provide-kind of the strong engagement positions for the easy unstability aluminium alloy extrusions of large specification, improve existing section bar flattening precision and cross dimensions precision, avoid the special-shaped aluminium of large specification and the unstability of aluminium alloy extrusions in aligning process scrapped and pull on surface.

In order to achieve the above object, technical scheme of the present invention is:

-kind of the strong engagement positions for the easy unstability aluminium alloy extrusions of large specification, comprise that opposed layout roller is 4, opposed layout roller is 4 to be made up of 12 smoothing rolls 3, and smoothing roll 3 is connected with the full transmission drive 6 of smoothing roll, and the mode that 12 smoothing rolls 3 are upper and lower opposed layout is arranged in knockdown frame 1; The upper end of smoothing roll 3 is provided with 6 top roll screwdown gears 2, and the lower end of smoothing roll 3 is provided with 4 lower roll pressuring upper devices 5, and frame 1 two ends and hold-down support 7 are connected, and hold-down support 7 is connected with fang bolt.

Feature of the present invention is: opposed layout roller is 4 to be opposed layout, and opposed effect is for the shaping of section material section.Frame is combined frame, is connected with basis by the hold-down support at two ends, has alleviated the weight of equipment.Transmission and the speeds match of dividing orientation case to realize 12 smoothing rolls by a motor and gear.Top roll all can be realized and depress adjusting, and 4 of lower centres roller is realized and pressed adjusting, realizes the aligning of section bar along total length.

Accompanying drawing explanation

Fig. 1 is top view of the present invention.

Fig. 2 is left view of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing, the invention will be further described.

As depicted in figs. 1 and 2,-kind of the strong engagement positions for the easy unstability aluminium alloy extrusions of large specification, comprise that opposed layout roller is 4, opposed layout roller is 4 to be made up of 12 smoothing rolls 3, smoothing roll 3 is connected with the full transmission drive 6 of smoothing roll, the mode that 12 smoothing rolls 3 are upper and lower opposed layout is arranged in knockdown frame 1, and 12 smoothing rolls are drive roll; The upper end of smoothing roll 3 is provided with 6 top roll screwdown gears 2, and the lower end of smoothing roll 3 is provided with 4 lower roll pressuring upper devices 5, and top roll screwdown gear 2 and lower roll pressuring upper device 6 are realized recurvation and regulated, and section bar is aligned along total length.Frame 1 two ends and hold-down support 7 are connected, and hold-down support 7 is connected with fang bolt.

Operation principle of the present invention is: under original state, realize the adjusting of roll gap and recurvation amount according to technological requirement adjusting upper roll screwdown gear 2 and lower roll pressuring upper device 5.The full transmission drive 6 of smoothing roll drives smoothing roll 3, realizes nipping and aligning of section bar by 12 smoothing rolls 3 of full transmission, 3 rectifications that realize section material section on opposed smoothing roll.

In figure: the 1st, frame; The 2nd, top roll screwdown gear; The 3rd, smoothing roll; The 4th, the roller system of opposed layout; The 5th, lower roll pressuring upper device; The 6th, the full transmission drive of smoothing roll; The 7th, hold-down support.

Claims

1.-kind of strong engagement positions for the easy unstability aluminium alloy extrusions of large specification, it is characterized in that, comprise opposed layout roller system (4), opposed layout roller system (4) is made up of 12 smoothing rolls (3), smoothing roll (3) is connected with the full transmission drive of smoothing roll (6), and the mode that 12 smoothing rolls (3) are upper and lower opposed layout is arranged in knockdown frame (1); The upper end of smoothing roll (3) is provided with 6 top roll screwdown gears (2), and the lower end of smoothing roll (3) is provided with 4 lower roll pressuring upper devices (5), and frame (1) two ends and hold-down support (7) are connected, and hold-down support (7) is connected with fang bolt.