JPS6050293U

JPS6050293U - Earth removal device for shield excavator

Info

Publication number: JPS6050293U
Application number: JP14312783U
Authority: JP
Inventors: 笹山　博敏
Original assignee: 日立造船株式会社
Priority date: 1983-09-13
Filing date: 1983-09-13
Publication date: 1985-04-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来例の縦断面図、第２図は本考案の一実施例
の縦断面図、第３図は他の実施例の縦断面図である。２１・・・・・・シールド本体、２２・・・・・・圧力
室、２３・・・・・・カッタヘッド、２８・・・・・・
排土装置、２９・・・・・・大気圧室、−３０・・・・
・・筒状ケーシング、３０ａ・・・・・・第１環状凹部
、３０ｂ・・・・・・第２環状凹部、３１・・・・・・
圧力室後部隔壁、３２・・・・・・排出口、３３・・・
・・・第１回転環、３４・・・・・・第２回転環、４１
・・・・・・第１回転駆動装置、４２・・・・・・第２
回転駆動装置、４５・・・・・・リボン状スクリュウ羽
根、４７・・・・・・回転軸、５１・・・・・・混練羽
根。FIG. 1 is a vertical cross-sectional view of a conventional example, FIG. 2 is a vertical cross-sectional view of one embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view of another embodiment. 21... Shield body, 22... Pressure chamber, 23... Cutter head, 28...
Earth removal device, 29... Atmospheric pressure chamber, -30...
...Cylindrical casing, 30a...First annular recess, 30b...Second annular recess, 31...
Pressure chamber rear bulkhead, 32...Exhaust port, 33...
...First rotating ring, 34... Second rotating ring, 41
......first rotational drive device, 42...second
Rotary drive device, 45... Ribbon-shaped screw blade, 47... Rotating shaft, 51... Kneading blade.

Claims

[Scope of utility model registration request]

An earth removal device that discharges excavated earth and sand taken into a pressure chamber formed in a cutter head to an atmospheric pressure chamber side, the earth and sand being discharged from the other end side of a cylindrical casing whose one end is opened into the pressure chamber. A discharge port communicating with the atmospheric pressure chamber is formed, a first annular recess is formed near one end of the outer periphery of the cylindrical casing, and a second annular recess is formed near the other end; First and second rotating rings each rotatably driven by a rotary drive device are arranged in the recess, and a ribbon-shaped screw blade without a central axis is rotatably arranged in the cylindrical casing, and the ribbon-shaped screw The outer periphery of the blade and the first rotating ring are connected, and the other end of the rotating shaft, one end of which is located inside the pressure chamber, is inserted through the center hole of the ribbon-shaped screw blade and brought closer to the other end of the cylindrical casing. 1. An earth removal device for a shield excavator, characterized in that a kneading blade is provided at one end of the rotary shaft to mix excavated earth and sand in a pressure chamber, the blade being positioned and connected to a second rotary ring, and on one end side of the rotary shaft.