大直徑薄壁鋼管用六輥矯直機(jī)的設(shè)計(jì)

Design of Six-roll Straightener for Large-sized Light-wall Steel Pipe

摘要: 介紹了一種新型六輥矯直機(jī)的設(shè)計(jì)方法。該方法改進(jìn)了矯直機(jī)上下矯直輥結(jié)構(gòu),加長(zhǎng)了矯直輥輥身長(zhǎng)度,增加了鋼管與矯直輥在單位長(zhǎng)度上形成的包絡(luò)范圍,同時(shí)增加了新型邊側(cè)輥裝置。通過上述改進(jìn)設(shè)計(jì),解決了大直徑薄壁鋼管在傳統(tǒng)六輥矯直機(jī)矯直過程中容易產(chǎn)生的鋼管跑偏、矯直變橢圓、鋼管斷面畸變等質(zhì)量缺陷問題,顯著提高了鋼管的矯直精度和成品質(zhì)量。

Abstract: Elaborated here in the article is a method for designing a new type six-roll straightener. The design method involves some modification details of the straightener,including improvement of structures of both the top and low rolls,extending the length of the straightening roll body,expanding the enveloping line length per length unit between the work-piece and the roll,and adopting a new type lateral roll device,etc. The above mentioned innovative design measures lead to elimination of certain quality defects of the large-sized light-wall pipe that are prone to being caused during operation of the convenient six-roll straightening mill,including pipe side-slipping,oval-shaped outside circumference,and cross-section distortion etc.,which greatly increases the straightening precision and quality of the finished pipe.