JPH025636B2 - - Google Patents

Description

Detailed Description of the Invention The present invention provides a ship with a hollow shaft that moves up and down underwater while rotating, a rudder handle is attached to the upper part of the hollow shaft, and a hydraulic motor is stored in the underwater part for propulsion. The present invention also relates to a device for use in steering, and its purpose is to save power for hoisting a hollow shaft, provide a sufficient lifting height, and facilitate steering.

Conventionally, the steering gear 1 is fixed to the hull as shown in FIG. As shown, at present, the cylinder of the steering gear 1 is made into a trunnion shape and coated with glue.

However, in any case, structurally,
The lifting height is severely restricted, and the hoisting support is placed separately on the deck, which hinders operations on small ships, etc. Furthermore, the hoisting wire 6 is twisted each time it is steered, posing a risk of breakage. .

Furthermore, during steering, it is necessary to place the fulcrum of the lifting wire 6 at the center of the hollow shaft 2, and if the lifting operation is performed at that fulcrum, the hollow shaft 2 will receive a tilting moment due to the influence of the propeller weight, etc. This causes friction between the two. Therefore, unnecessary power was required during lifting, and there was a risk of damaging the bearing tube 7. (P is a propeller) The present invention solves these drawbacks, and an embodiment thereof will be described below with reference to the drawings.

FIG. 3 is an explanatory sectional view of the embodiment. hollow shaft 2
is provided with a flange 8 at the top, a hydraulic motor M, a propeller P, etc. in the underwater part, supported vertically and rotatably by a bearing tube 7, and fixed to the deck 9.
A rotatable support 10 is fitted to the outer periphery of the bearing tube 7,
The abutment has a rudder handle 4, a channel strut 11 and a hoist 1
Install 2.

Further, a pulley 13 is provided on the upper part of the groove-shaped support 11, and a rudder pin 5 is provided in the rudder handle 4 to connect it to the steering gear 1. A flange 8 is provided on the upper part of the hollow shaft, and a protrusion 14 is provided on the outer periphery of the flange 8 to form a groove-shaped support 1 as shown in FIG.
1, a lifting eyepiece 15 and a lifting wire 6 are provided on the upper surface thereof, and the lifting eyepiece 15 and lifting wire 6 are connected to the hoisting machine 12 by a pulley 13. Here, the lifting eyepiece 15 and the pulley 13 are attached at a position where the hollow shaft 2 hangs vertically. H is a hydraulic motor, and B is a mounting bolt.

Since the present invention has the above configuration, the following advantages can be obtained.

Since the hollow shaft 2 can be lifted vertically, there is little frictional resistance, the hoisting power can be saved, and there is little risk of damage. In addition, looking at the channel-shaped support 11 from a distance,
This has the advantage of being able to tell the propeller position at a glance.

Furthermore, since the groove-shaped support 11 is attached to the support base 10 and always rotates together with the hollow shaft 2, a sufficient lifting height can be obtained, and at the same time, the lifting wire 6 is not twisted together, and the wire Alternatively, a rigid body can be used, and it has the advantage of being able to easily rotate 360 degrees.

In addition, there is no need to separately place the hoisting support on the deck, so it is less likely to interfere with shipboard work, and many other economic effects can be achieved.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams of conventional vertical and steering devices. FIG. 3 is an explanatory sectional view of an embodiment of the present invention, and FIG. 4 is an explanatory plan view showing the interlocking of the hollow shaft and the support. 1... Steering gear, B... Mounting bolt, 2... Hollow shaft, H
...Hydraulic hose, 3...Hoisting strut, M...Hydraulic motor, 4...Rudder handle, P...Propeller, 5...Rudder handle pin, W
... Bearing metal, 6... Lifting wire, 7... Bearing tube,
8...Flange, 9...Upper deck, 10...Abutment, 11...
Channel strut, 12... winding machine, 13... pulley, 14...
Projection, 15... Lifting eyepiece.

Claims (1)

[Claims] 1 A ship is equipped with a hollow shaft that moves up and down underwater from the deck and rotates, a rudder handle is attached to the top of the hollow shaft, a hydraulic motor, etc. is stored in the underwater part, and a hydraulic hose, etc. is guided from the ship through the hollow shaft. In a device that rotates a propeller to provide propulsion and steering, a bearing tube that supports a hollow shaft is fixed to the hull, a rotatable support is fitted around the outer circumference of the bearing tube, and a rudder handle is attached to the support. The upper flange of the hollow shaft is provided with a protrusion on the outer periphery and is slidably fitted into the groove of the groove-shaped strut, and a lifting eyepiece and wire are provided on the upper surface of the upper flange. A shaft-up/down rudder handle characterized in that a pulley is provided at the top of the groove-shaped column and connected to a hoist, and a lifting eyepiece and wire are attached to a position where the hollow shaft hangs almost vertically.