JPS5872293U

JPS5872293U - shield tunneling machine

Info

Publication number: JPS5872293U
Application number: JP16441681U
Authority: JP
Inventors: 森田　道明
Original assignee: 日立建機株式会社
Priority date: 1981-11-05
Filing date: 1981-11-05
Publication date: 1983-05-16

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図は従来の半機械掘りシールド掘進機の断面図、第
２図は第１図中における■部拡大図、第３図は第２図中
における■−■線断面図、第４図乃至第６図は本考案の
シールド掘進機の一実施例を示し、第４図は要部の拡大
断面図、第５図および第６図は第４図中における■−Ｖ
線断面図および■−■線断面図である。　　　− １・・・シールド本体、９・・・ベルトコンベア、１０
・・・傾斜底板、１２・・・噴射口。Figure 1 is a sectional view of a conventional semi-mechanical shield excavator, Figure 2 is an enlarged view of the ■ part in Figure 1, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, and Figures 4 to 4. Fig. 6 shows an embodiment of the shield tunneling machine of the present invention, Fig. 4 is an enlarged sectional view of the main parts, and Figs. 5 and 6 are -V in Fig. 4.
They are a line cross-sectional view and a ■-■ line cross-sectional view. - 1...Shield body, 9...Belt conveyor, 10
...Slanted bottom plate, 12...Injection port.

Claims

[Scope of utility model registration request]

A required number of shield jacks are arranged inside the cylindrical shield body, and a sand discharge device is arranged in the shield body in the central axis direction of the shield body, and the tip of the sand discharge device is connected to the shield body C.゛In a shield excavator that is located below the front opening edge and configured to discharge excavated earth and sand to the outside by an earth and sand discharge device, an inclined bottom plate is installed below the earth and sand discharge device from the front to the rear of the shield body. Provided at an angle, an injection port is provided at a location in front of the sediment discharge device of the shield main body, facing the tip of the sediment discharge device, and air or water is injected from the injection port toward the tip of the sediment discharge device. A shield excavator characterized in that the earth and sand accumulated on the sloped bottom plate below the earth and sand discharge device are discharged to the rear of the shield main body along the sloped bottom plate.