公开(公告)号：US4555064A

公开(公告)日：1985-11-26

申请号：US573888

申请日：1984-01-25

申请人： Juichi Asano ,  Yasuo Okubo ,  Hiroshi Saito ,  Shigeru Harada

发明人： Juichi Asano ,  Yasuo Okubo ,  Hiroshi Saito ,  Shigeru Harada

IPC分类号： E21D9/08 ,  B02C7/06 ,  B02C7/12 ,  E21B7/00 ,  E21B7/20 ,  E21B10/42 ,  E21B21/12 ,  E21D9/11 ,  E21D9/12 ,  B02C18/16

CPC分类号： B02C7/06 ,  B02C7/12 ,  E21B10/42 ,  E21B21/12 ,  E21B7/00 ,  E21B7/208 ,  E21D9/112

摘要： A pebble-stone crushing device for use in an excavator for laying pipelines underground has a plurality of rotor teeth formed integrally with the rear face of a cutter head which is mounted in the most front part of an excavator body to excavate a working face in front thereof, and a plurality of stator teeth formed radially on and integrally with an annular front face plate of said excavator body so as to cooperate with said rotor teeth. The stator teeth comprises plural groups of radially spaced apart tooth members having different length. Further, the tooth members comprises groups of comparatively long main tooth members and groups of comparatively short auxiliary tooth members each being disposed, respectively, between every adjacent two main tooth members.

摘要翻译： 用于挖掘机在地下铺设管道的挖泥机中使用的卵石破碎装置具有多个转子齿，其与安装在挖掘机主体的最前部的刀头的后表面一体形成，以在前面挖掘工作面 以及多个定子齿，其与所述挖掘机主体的环形前面板径向形成一体，以与所述转子齿配合。 定子齿包括具有不同长度的多组径向间隔开的齿构件。 此外，齿构件包括相对较长的主齿构件组和相对较短的副齿构件的组，各组分别设置在每个相邻的两个主齿构件之间。