JPS6158267U

JPS6158267U -

Info

Publication number: JPS6158267U
Application number: JP14277684U
Authority: JP
Priority date: 1984-09-18
Filing date: 1984-09-18
Publication date: 1986-04-19
Also published as: JPH0316922Y2

Description

[Brief explanation of the drawing]

第１〜３図は本考案の一実施例としてのカツタ
付ドラグヘツド装置を示すもので、第１図はその
縦断面図、第２図は第１図の−矢視断面図、
第３図はそのカツタロータの中央部と両端部の接
続状態を示す断面図であり、第４図は自航式サク
シヨン浚渫船の作業状態を示す模式図、第５〜１
０図は従来のカツタ付ドラグヘツド装置を示すも
ので、第５図はその一例としての装置の側面図、
第６図は軟質の海底土を掘削するカツタを示す正
面図、第７図は第６図の−矢視断面図、第８
図は第６図の−矢視断面図、第９図は硬質の
海底土を掘削するカツタを示す側面図、第１０図
は第５図に示すカツタ付ドラグヘツド装置の正面
図であり、第１１〜１５図は従来のカツタ取外し
機構をそなえたドラグヘツド装置を示すもので、
第１１図はその要部を示す斜視図、第１２図はそ
の支持板および刃の分解斜視図、第１３図はその
カツタロータおよび支持板の配設状態を示す断面
図、第１４図はそのスペーサーを示す斜視図、第
１５図はその分割型スペーサを示す斜視図である
。１……ドラグサクシヨン浚渫船、２……泥倉、
３……ドラグアーム、４……ドラグヘツド、１３
……カツタを構成する刃、１６……駆動軸、１８
……支持板、１８′……端部支持板、２０……ス
ペーサー、２１……ホルダ、２７……ロータ中央
部、２８，３０……キー、３１……ロータ端部、
３２……リテーナ、３３……ボルト、３４……補
強材、３５……ドラグヘツドケース側板。 1 to 3 show a drag head device with a cutter as an embodiment of the present invention, FIG. 1 is a longitudinal sectional view thereof, FIG.
Fig. 3 is a sectional view showing the connection state between the central part and both ends of the cutter rotor, Fig. 4 is a schematic diagram showing the working state of the self-propelled suction dredger, and Figs.
Figure 0 shows a conventional drag head device with cutters, and Figure 5 is a side view of the device as an example.
Figure 6 is a front view showing a cutter for excavating soft seabed soil, Figure 7 is a sectional view taken along the - arrow in Figure 6, and Figure 8
The figures are a cross-sectional view taken along the - arrow in FIG. 6, FIG. 9 is a side view showing a cutter for excavating hard seabed soil, FIG. 10 is a front view of the cutter-equipped drag head device shown in FIG. Figures 1 to 15 show a drag head device equipped with a conventional cutter removal mechanism.
Fig. 11 is a perspective view showing the main parts, Fig. 12 is an exploded perspective view of the support plate and blade, Fig. 13 is a sectional view showing the arrangement of the cutter rotor and support plate, and Fig. 14 is the spacer. FIG. 15 is a perspective view showing the split spacer. 1...Drag suction dredger, 2...Mud storage,
3...Drag arm, 4...Drag head, 13
...Blade making up the cutter, 16... Drive shaft, 18
... Support plate, 18' ... End support plate, 20 ... Spacer, 21 ... Holder, 27 ... Rotor center, 28, 30 ... Key, 31 ... Rotor end,
32...Retainer, 33...Bolt, 34...Reinforcement material, 35...Drag head case side plate.

Claims

[Scope of utility model registration request]

A rotary cutter for excavation is provided inside the drag head body, and the cutter has a rotor removably mounted on the drive shaft at both ends, and a number of donut-shaped support plates removably fitted to the rotor. and a number of blades attached to the outer periphery of the support plate via holders, and the rotor is removably connected to the drive shafts at both ends via keys or splines. and a rotor central portion disposed between these rotor end portions, the rotor end portion and the rotor central portion are connected by the support plate at the end, and the support plate is connected to the rotor central portion. A drag head device with a cutter, characterized in that movement in the axial direction of the rotor is restrained by a removable retainer on the end.