The invention discloses a processing technology for the rotating track of a trolley frame for a track crane, which completes the turning track processing technology of the trolley frame for a track crane through the processing steps of sectional cutting, overall layout, welding, track processing and overall quenching; the advantages of the invention are that the welding of the track workshop is realized and the process is simplified. The production cycle is shortened and the construction schedule is guaranteed; the machining quantity is greatly reduced, only the track quenching surface is processed, and the cost of material, processing and transportation is reduced; the whole plane and whole quenching are processed, and the product quality is well controlled and improved. The innovation of the quenching process for the slewing track of the trolley frame of the invention mainly proceeds from the technological sequence of placing the machining allowance of the track surface quenching and quenching before and after, realizes the welding of the track making workshop, the whole machining plane of the track and the whole quenching of the track, guarantees the construction progress, and the product quality is well controlled and improved. The cost of production is greatly reduced.
【技术实现步骤摘要】
一种轨道吊用小车架回转轨道的加工工艺
本专利技术涉及一种小车架回转轨道的加工方法,具体涉及一种轨道吊用小车架回转轨道的加工工艺。
技术介绍
传统工艺方法为:将双面加工到位的轨道与加工平面的滚道梁进行压紧,点焊接固定于滚道梁上,将轨道与滚道梁装配好后进行轨道表面淬火处理,轨面硬度达到HB240-HB280,有效深度不小于4mm,待轨道表面淬火结束后,拆除滚道梁,测量轨道的平整度及圆弧度相关尺寸并对轨道做探伤检测机硬度取样试验,划线切除轨道两端的余量;小车架制作完成后机加工承轨面,根据所划轨道安装线,对轨道进行排装(轨道淬火面注意在上口),轨道安装前检测自身以及承轨面平整度,轨道安装前端部开设好坡口,轨道排装时,用卡马和锲块固定,保证轨道和承轨梁紧密贴合,将轨道与轨道间对接焊缝焊接到位,对接按通用工艺GTC18A进行对接,轨道对接完成后,进行对称焊接轨道与承轨梁的焊缝,接头打磨平顺光滑。传统工艺如下步骤所示:一种轨道吊用小车架回转轨道的加工工艺,经过轨道分段下料、分段轨道加工、工装加工、分段轨道淬火、承轨面加工、轨道焊接及打磨接头的加工步骤,完成轨道吊用小车架回转轨道的加工工艺;具体步骤如下:(1)分段下料:将回转小车轨道在高度方向上留10mm的加工余量,然后分四段进行下料,两端各加80余量;(2)分段轨道加工:将分段轨道两面去除余量加工平面,高度保证与图纸一致;(3)工装加工:工装滚道梁贴合面加工平面;(4)分段轨道淬火:分段轨道点焊到工装滚道梁贴合后轨道面淬火,检验硬度合格后划线切除轨道两端的余量;(5)承轨面加工:小车架承轨面零件板厚放10mm加工余量, ...
【技术保护点】
1.一种轨道吊用小车架回转轨道的加工工艺,其特征在于:经过分段下料、整体布局、焊接、轨道加工和轨道整体淬火的加工步骤,完成轨道吊用小车架回转轨道的加工工艺;具体步骤如下:(1)分段下料:将回转小车轨道在高度方向上留10mm的加工余量,然后分四段进行下料;(2)整体布局:整体划线、定位轨道位置,保证轨道中心线与承轨梁腹板对筋和轨道圆周尺寸并用卡马和锲块固定;(3)焊接:将回转小车轨道按原要求进行焊接,保证其水平;(4)轨道加工:加工轨道高度方向的余量,注意加工角度,无法机加工的回转小车轨道上口R角,要求在淬火前手工打磨圆角R为5mm为止;(5)轨道整体淬火:利用工装将淬火设备现场淬火,先用轨道试验块调试淬火参数,检验轨道试验块淬火硬度等合格后,对产品轨道整体淬火。
【技术特征摘要】
1.一种轨道吊用小车架回转轨道的加工工艺,其特征在于:经过分段下料、整体布局、焊接、轨道加工和轨道整体淬火的加工步骤,完成轨道吊用小车架回转轨道的加工工艺;具体步骤如下:(1)分段下料:将回转小车轨道在高度方向上留10mm的加工余量,然后分四段进行下料;(2)整体布局:整体划线、定位轨道位置,保证轨道中心线与承轨梁腹板对筋和轨道圆周...
【专利技术属性】
技术研发人员:盛金金,何华文,王小彬,朱镇,王晨,
申请(专利权)人:南通振华重型装备制造有限公司,
类型:发明
国别省市:江苏,32
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。