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41. 发明专利

JPH01219300A ASSEMBLY DEVICE OF STEEL SEGMENT 失效
公开(公告)号：JPH01219300A
公开(公告)日：1989-09-01
申请号：JP4282488
申请日：1988-02-24
申请人： OKUMURA KIKAI SEISAKUSHO KK
发明人： UMEDA MASAAKI
IPC分类号： E21D11/14 , E21D11/15 , E21D11/40
摘要： PURPOSE:To make it possible to assemble a segment precisely and speedily by placing a main beam plate and a joint plate on a skin plate held on a skin plate support means and welding a joining section after holding its position correctly. CONSTITUTION:A skin plate (b) is held on a skin plate mounting means 8 constituted so that a recessed section between both fixed side plates 1 and 1 is along the curved surface of the skin plate (b). After that, a main beam plate (d) is brought into contact with opposite insides of the fixed side plates 1 and 1, and it is maintained in a correct mounting position against the skin plate (b) by means of a main beam mounting means 3. Then, joint plates (c) and (c) are maintained by joint plates mounting means loaded on fixed frame plates 14 and 14, and rotating plates 17 and 17 rotate inward to set correctly mounting positions of the joint plates (c) and (c). A joining section of the skin plate (b), the main beam plate (d) and the joint plates (c) and (c) is welded to form a segment (a).

42. 发明专利

JPS63218419A MANUFACTURE OF RIBBON SCREW 失效
公开(公告)号：JPS63218419A
公开(公告)日：1988-09-12
申请号：JP4952487
申请日：1987-03-02
申请人： OKUMURA KIKAI SEISAKUSHO KK
发明人： MAEDA AKIYA , TOKUNAGA YASUHIKO
IPC分类号： B65G33/26
摘要： PURPOSE:To reduce the number of processes and improve the strength by applying spiral slits penetrating the inner and outer peripheries to a steel pipe and separating multiple ribbon screws thus formed and coupled with each other by the relative rotation in the manufacture of a ribbon screw for transferring sediment or the like. CONSTITUTION:Three spiral slits 111 penetrating from the outer periphery side to the inner periphery side are formed on a thick steel pipe 110 by a spiral slit forming machine. Thereby, triple ribbon screws 114A-114C coupled with each other are formed. Next, end sections of these ribbon screws 114A-114C are picked, the ribbon screws 114A-114C are relatively rotated and separated from each other to form three ribbon screws 114A, 114B, 114C. According to this constitution, the number of processes can be reduced, and no welded portion is provided, thus the strength can be improved.

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