JPS6062568U

JPS6062568U - Drag head device with cutter

Info

Publication number: JPS6062568U
Application number: JP15347883U
Authority: JP
Inventors: 文男森; 直樹熊本; 亀原　検士; 大江　清登; 竹田　悟
Original assignee: 運輸省第五港湾建設局長; 三菱重工業株式会社
Priority date: 1983-10-03
Filing date: 1983-10-03
Publication date: 1985-05-01
Also published as: JPS6343257Y2

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 drawings]

第１図は自航式サクション浚渫船の作業状態を示す模式
図であり、第２〜８図は従来のドラグヘッド装置を示す
もので、第２図はその一例としての装置の側面図、第３
図は第２図の改良型のカッタ付きドラグヘッド装置を示
す縦断面図、第４図は軟質の海底土を掘削するカッタを
示す正面図、第５図は第４図の■−■矢視断面図、第６
図は第４図のＶＩ−ＶＩ矢視断面図、第７図は硬質の海
底土を掘削するカッタを示す側面図、第８図は第７図の
■−■矢視正面図であり、第９〜１２図は本考案の一実
施例としてのカッタ付きドラグヘッド装置を示すもので
、第９図はその要部を示す斜視図、第１０図はその刃お
よび支持板の分解斜視図、第１１図はその支持板および
スペーサの配設状態を模式的に示す断面図、第１プ図は
その刃のピッチを変更した場合の支持板およびスペーサ
の配設状態を第１１図に対応させて示す断面図である。１・・・ホッパ、２・・・ドラグアーム、３・・・ドラ
グヘッド本体、４・・・海底土、１３・・・歯列状の刃
、１４・・・ホルダー、１５・・・軸部、１６・・・支
持板、１７゜１７′・・・スペーサ、１８・・・キー、
１９・・・キー溝、ｃ、ｃ’・・・カッタ、１．１’・
・・ピッチ。）°。１１１■ヒ■ 第６図Fig. 1 is a schematic diagram showing the working state of a self-propelled suction dredger, Figs. 2 to 8 show conventional drag head devices, Fig. 2 is a side view of the device as an example, and Fig. 3
The figure is a longitudinal sectional view showing the improved cutter-equipped drag head device shown in Fig. 2, Fig. 4 is a front view showing a cutter for excavating soft seabed soil, and Fig. 5 is a view taken from the ■-■ arrow in Fig. 4. Sectional view, No. 6
The figure is a sectional view taken along the line VI-VI in FIG. 4, FIG. 7 is a side view showing a cutter for excavating hard seabed soil, and FIG. 9 to 12 show a drag head device with a cutter as an embodiment of the present invention. FIG. 9 is a perspective view showing the main parts thereof, FIG. 10 is an exploded perspective view of the blade and support plate, Figure 11 is a sectional view schematically showing the arrangement of the support plate and spacer, and the first figure shows the arrangement of the support plate and spacer when the pitch of the blade is changed, corresponding to Fig. 11. FIG. DESCRIPTION OF SYMBOLS 1... Hopper, 2... Drag arm, 3... Drag head main body, 4... Seabed soil, 13... Teeth-shaped blade, 14... Holder, 15... Shaft part , 16...Support plate, 17°17'...Spacer, 18...Key,
19...Keyway, c, c'...Cutter, 1.1'.
··pitch. )°. 111■hi■ Figure 6

Claims

[Scope of utility model registration request]

A rotary cutter for excavation is provided inside the drag head body, and the cutter is attached to a number of donut-shaped support plates that are removably fitted to the shaft of the cutter, and to the outer periphery of the support plates via holders. 1. A drag head device with a cutter, characterized in that a ring-shaped spacer between the supporting plates is disposed to fit into the shaft portion.