JPS59120600A - Hydraulic steering gear for propeller of ship - Google Patents

Abstract

PURPOSE:To provide a compact steering gear and improve the operability thereof by connecting the other end of a steering link to a steering arm by a pin. CONSTITUTION:Since a steering cylinder 18 is fixedly arranged on the whole surface of a swivel bracket 13, the general dimension of steering gear is lessened compared with one in which the steering cylinder is fixed to the side of a clamp bracket or the steering cylinder and piston rod are supported swingably by the clamp bracket. Also, the piston rod 20 and a steering arm 16 are connected to each other through a pin 24A, a steering link 24 and a pin 24B so that a linear slide portion is absent in a path connecting the piston rod to the steering arm to reduce the wear of connected portions and improve the operability.

Description

[Detailed description of the invention] The present invention relates to a hydraulic steering system for a marine vessel propulsion device.

Pushing the ship overboard! The aircraft has a steering shaft in which the propulsion unit is integrated with a swivel bracket that can be supported on the stern side, and the steering is achieved by relative movement between the steering cylinder and its piston rod under the supply of hydraulic oil. On the axis [
4) Hydraulic steering device that allows the steering arm to rotate.

However, with the conventional hydraulic calibration device (~), the swivel bracket is fixed to the stern plate, and the tilt axis is used to tilt the swivel bracket. For those that are fixed and whose piston rod moves reciprocally and linearly within the tilt axis.

The overall size of the device increases to the left side of the outboard motor body.

In addition, in the case of a conventional hydraulic steering system in which the steering cylinder and the C-shaped piston rod are supported in a clamp bracket for rocking function, the overall dimensions of the system are smaller than that of the outboard motor body. In addition, as yet another conventional hydraulic steering device, a piston rod is arranged on the 111 side of the clamp bracket, and a steering cylinder and a steering arm that move linearly reciprocally with respect to the piston rod are arranged. The present invention reduces the overall size of the device, and reduces the overall size of the device. Made 1lfj
Our aim is to provide a hydraulic steering system that has the best features.

-1- In order to achieve the above objectives, the ship propulsion (hydraulic steering system of the shell) according to the present invention has a steering cylinder connected to a swivel shaft (1) by connecting a steering link to a piston rod. One end 1 of the steering link is connected to a pin 1, and the other end of the steering link is connected to a steering arm through a pin connection.

The following is an example of 1) screaming with reference to Figure 1111.
jIJ 0! J) Figure 1 shows the oil Y modu νl according to the first embodiment of the present invention.
[□4 Keden.

It is a schematic, approximately half-CCtJ diagram showing. Reference numeral 11 denotes a clamp bracket, which can be fixed to the stern of the hull. A swivel lugs 13 is supported on the pushbutton 11 via a hollow tilt shaft 12 so as to be tiltable around a substantially horizontal axis. The swivel bracket 13 is connected to the steering shaft 14 via the 1g-advanced unit 1.
5 is chill) ili! It is supported so as to be movable intermittently about the Φ axis, which is substantially orthogonal to l112. The propulsion unit is equipped with a 21.1-inch engine drive on its upper part, and is connected to a 21.1-inch moving shaft through a forward/reverse switching mechanism. - 4). (2) A steering arm 16 is fixed to the upper end of the steering wheel #14. That is, by adding steering torque to steering art 16,
Through the steering shaft 14, the propulsion coette 15 can be rotated and steered as described above.

In front of the swivel lug 13, there is a mounting bracket 1.
7, a steering cylinder 18 with 188 cylinders is provided with a tilt cylinder 12 (ζ). The piston rod 2o is inserted into the reciprocating jxj dragon.At both ends of the piston red 2o.

A reinforcing rod 23 is connected via connecting plates 21, 22, which is movable in the axial direction within the five-slant shaft 12. The piston (E Rad 20) is better than the S1.

By connecting with the reinforcing rod 23, the bending gap 4<1 can be reinforced.

One side of the steering link 24 is connected to the pin 2 of the connection &21.
Bin-bound via 4A. The other end of the steering link 24 is pin-coupled to the tip of the steering wheel 16 via a pin 24B. That is, the steering cylinder 18
The piston rod 20 and the steering art 16 are connected via a steering link 24, so that the steering arm 16 can be rotated by reciprocating the piston rod 20.

Reference numeral 25 denotes a hydraulic pump, and when the steering wheel 26 is rotated counterclockwise or clockwise, its drive portion rotates forward or reverse, causing operation 7i11.

It can be supplied to the steering cylinders 18A and 18B via pipes 27A and 27B.

Next, the operation of embodiment H will be explained.

When the steering handle 26 is rotated counterclockwise as shown by the solid line in FIG.
The stone 19, piston rod 20, and reinforcing rod 23 are moved linearly to the right in FIG.
The steering arm 16 is rotated in the direction shown by the solid line in FIG. 1 to enable the steering arm 15 to be steered.

When the steering handle 26 is rotated clockwise as indicated by the broken line in WJl 1A, the flow of hydraulic oil becomes the opposite direction to the above, and the steering wheel 16 is rotated in the direction indicated by the broken line VC in Figure 1, causing propulsion. The unit 15 is steered in the opposite direction to the above direction with the i-j function.

In addition, the swivel bracket 13 is attached to the crank bracket 1.
When the steering cylinder 18, the piston Y'rad 20 and the reinforcing rod 23 are tilted up or down relative to the swivel lugs 13, Chuuya++1il
Rotate around ll.

-1- According to the embodiment described above, since the steering cylinder 18 is fixedly disposed (1χ) on the entire surface of the swivel bracket 13, the steering cylinder is fixed to the side of the crank bracket.
Clamp the steering cylinder wayopi piston Clrad,
The overall size of the device is smaller than that of a device that can be swung back and forth. 24, coupled via bin 24B, and thus:
The piston has been steered and the connection has been completed, and the path is l.
I'i line print ibl + no capital, m of the connected part P-f =
1), the operability is good.

Figure 2pJ2 is an explanatory diagram showing a modification of the above embodiment shown in Figure 1 (C). ?I use foil material.

This modification is shown in Actual Death 1.11 (6:f:,c). ,↑(i;
One part of the nl-i-link 24 is connected directly (there are 81 points C' for each pin 1 bond. In this modification, V is also
In the above embodiment (・'Similar to the case of
It is possible to miniaturize the method and improve its operability.

As described above, according to the invention, the hydraulic steering device of the Jia marine propulsion machine is fixed to the steering wheel swivel racket,
Connect one end of the steering cylinder to the piston,
The other end of the steering arm ε and the other end of the steering link are connected to each other by a bottle. Therefore, the overall size of the device can be reduced by fixing the IN1 rudder cylinder to the 1t+n section of the clamp bracket, or by making the steering cylinder and bimeton rotor 4 and clamp bracket swingable and supporting f -t7)0). Since there is no linear sliding part in the connection path between the piston rod and the steering arm, there is less wear on the connection part, and the condition 11i) is improved.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing a hydraulic +S rudder device according to an embodiment of the present invention, and FIG. 2 is a schematic plan view showing a modification of FIG. 1. 13...Swivel bracket, 14...Swivel bracket
e fql+, 15... Propulsion unit, 16... Steering arm, 18... Steering cylinder, 19... Piston, 20... Piston rod, 24... Steering link, 24A, 24B ゛°° Bin, 25... Hydraulic bond, 26... Steering handle. Representative Ffi person Osamu Shiokawa Diagram 1 ＼ 71. . Figure 2゛ 1 ＼ /-1゜L・

Claims (1)

[Claims] (1) The steering shaft, in which the propulsion unit is integrated, is supported by a swivel bracket that can be supported by the stern ffl 1111B, and the steering shaft is 7) In a hydraulic steering system for a marine propulsion device in which the steering arm is rotatable, the steering cylinder is fixed to a swivel bracket, and the piston is attached to the I throat of the steering link -y;
11! 2. A hydraulic steering system for a marine propulsion device, characterized in that the other end of the steering element is connected to the steering element through a pin.