公开(公告)号：US5211907A

公开(公告)日：1993-05-18

申请号：US788186

申请日：1991-11-05

Applicant: Tilo Landgraf ,  Rainer Kunz ,  Johann Ropers ,  Martin Zenkel

Inventor： Tilo Landgraf ,  Rainer Kunz ,  Johann Ropers ,  Martin Zenkel

IPC: B21D39/06 ,  F16B1/00 ,  F16B19/10 ,  F16B19/12 ,  G21C5/06

CPC classification number: F16B19/1081 ,  B21D39/06 ,  F16B19/12 ,  G21C5/06 ,  F16B1/005 ,  Y02E30/40 ,  Y10T29/531 ,  Y10T29/53722 ,  Y10T29/53996

Abstract: A method and assembly for securing a cylindrical centering pin in a bore formed in a plate includes introducing an end of a centering pin to be secured to a plate into a bore formed in the plate until at least part of a coaxial, radially deformable wall portion of the end to be secured protrudes beyond the plate; and generating pressure in a closed hollow space surrounded by the wall portion with a pressure fluid until the wall portion radially expands and anchors the centering pin. According to another method and assembly, the end is introduced into the bore until at least part of the end to be secured, which has a periphery and an interior with radial slits formed therein, protrudes beyond the plate; and a mandrel-like tool is partially brought into the slits in the interior of the end of the centering pin and radially expands the end of the centering pin with the tool for anchoring the centering pin.

Abstract translation: 用于将圆柱形定心销固定在形成在板中的孔中的方法和组件包括将要固定到板的定心销的端部引入形成在板中的孔中，直到至少部分同轴的可径向变形的壁部分 待固定的端部突出超过板; 并且在由壁部围绕的封闭的中空空间内用压力流体产生压力，直到壁部分径向地膨胀并锚定定心销。 根据另一种方法和组件，将端部引入孔中，直到固定端部的至少一部分具有形成在其中的径向狭缝的周边和内部突出超过板; 并且心轴状工具被部分地插入到定心销的端部的内部的狭缝中，并且用于固定定心销的工具径向扩张定心销的端部。

公开(公告)号：US5089215A

公开(公告)日：1992-02-18

申请号：US507254

申请日：1990-04-09

Applicant: Tilo Landgraf ,  Rainer Kunz ,  Johann Ropers ,  Martin Zenkel

Inventor： Tilo Landgraf ,  Rainer Kunz ,  Johann Ropers ,  Martin Zenkel

IPC: B21D39/06 ,  F16B1/00 ,  F16B19/10 ,  F16B19/12 ,  G21C5/06

CPC classification number: F16B19/12 ,  B21D39/06 ,  F16B19/1081 ,  G21C5/06 ,  F16B1/005 ,  Y02E30/40 ,  Y10T29/4994

Abstract: A method of securing a cylindrical centering pin for a nuclear fuel assembly in a bore formed in a plate includes introducing an end of the centering pin into the bore until at least part of a coaxial, radially expandable wall portion of the end to be secured protrudes beyond the plate; and generating pressure in a closed hollow space surrounded by the wall portion with a pressure fluid until the wall portion radially expands and anchors the centering pin. According to another method, the end is introduced into the bore until at least part of the end to be secured, which has a periphery and an interior with radial slits formed therein, protrudes beyond the plate; and a mandrel-like tool is partially brought into the slits in the interior of the end of the centering pin and radially expands the end of the centering pin with the tool for anchoring the centering pin.

Abstract translation: 将形成在板中的孔中的用于核燃料组件的圆柱形定心销固定的方法包括将定心销的一端引入孔中，直到要固定的端部的同轴径向可扩张壁部分的至少一部分突出 超越盘 并且在由壁部围绕的封闭的中空空间内用压力流体产生压力，直到壁部分径向地膨胀并锚定定心销。 根据另一种方法，将端部引入孔中，直到固定端部的至少一部分具有形成在其中的径向狭缝的周边和内部突出超过板; 并且心轴状工具被部分地插入到定心销的端部的内部的狭缝中，并且用于固定定心销的工具径向扩张定心销的端部。