The invention relates to a large-scale crane boom hinge point construction process. The process comprises the following steps: step 1, pretreatment and rough machining of a hinge point seat lug plate; 2, splicing and welding hinge point seat lug plates; step 3, segmented manufacturing and construction precision control of the hinge point seat; step 4, controlling the construction precision of the ship body sections at the positions of the hinge point seats; 5, hull center line marking and hull closure construction precision control at the hinge point seat position are carried out; sixthly, hinge point bases are assembled, installed and welded in a segmented mode; 7, hinge point seat closure opening bulk parts are installed and welded; 8, machining the hinge point seat; in the building process, the hinge point seat and the ship body structure are synchronously manufactured in a segmented mode, the hinge point seat is integrally installed in a segmented mode, the amount of bulk objects on site is reduced, the construction efficiency is improved, the total building period is shortened by 30 days, and the construction cost is reduced by conducting refined precision control over the building and folding welding procedures. The deviation of the installed hinge point seat can be controlled within 4 mm, and the machining requirement is met.
本发明涉及一种大型起重机臂架铰点建造工艺,包括以下步骤:步骤1、铰点座耳板预处理及粗加工;步骤2、铰点座耳板拼板焊接;步骤3、铰点座分段制作及建造精度控制;步骤4、铰点座位置船体分段建造精度控制;步骤5、船体中心线划线及铰点座位置船体合拢建造精度控制;步骤6、铰点座分段合拢安装焊接;步骤7、铰点座合拢口散装件安装焊接;步骤8、铰点座机械加工;本发明的建造工艺中,铰点座采用分段的形式与船体结构同步制作、铰点座分段整体安装,减少了现场散装物量,提高了施工效率,使建造总周期缩短30天,并且通过对建造以及合拢焊接工序进行精细化精度控制,可以将安装后的铰点座偏差控制在4mm以内,满足机械加工要求。
Large crane boom hinge point construction process
一种大型起重机臂架铰点建造工艺
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |