JPH0925840A - Remote controller for propeller of ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the failure of an engine and occurrence of fire in an remote controller for a propeller in a ship, by not only issuing a waning by a buzzer and a lump, but also automatically controlling an engine speed instead of a shipping navigator when an abnormal state such as overheat and so on occurs to the engine of the propeller. SOLUTION: In a shipping wherein an actuator 4 by which the clutch and the throttle of a propeller are operated is arranged in an engine room and operating means 1A, 1B, 1C by which the actuator 4 is operated through electric transmitting means 3 are arranged to a pilot house arranged separately from the engine room, the electric transmitting means 3 is made to have a control function by which an engine speed is automatically lowered according to the abnormal state of the engine 8 of the propeller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for remotely operating a propulsion device on a cabin or in a cabin of a ship.

[0002]

2. Description of the Related Art In a small boat such as a medium-sized or large-sized motor boat, an actuator for operating a clutch and a throttle of a propulsion engine is arranged in an engine room, and an operating means for operating the actuator ( (Operating handle) is installed in the maneuvering seats arranged at multiple places in the ship such as a flying bridge or a cabin, and the actuators are remotely operated via electrical transmission means by operating the operating means from any of the maneuvering seats. That is generally done from the past.

A remote control device for a propulsion device in such a small boat has conventionally been provided with a warning buzzer or a warning for detecting and warning when an abnormal situation such as overheating occurs in the engine of the propulsion device. A lamp is attached, and the ship operator avoids engine damage or fire by performing an operation such as lowering the engine speed in response to the warning of the buzzer or lamp.

[0004]

By the way, in the conventional remote control device for a propulsion device in a ship as described above, when an abnormal situation occurs in the engine of the propulsion device, a buzzer or a lamp only issues a warning, and the marine vessel maneuvering is performed. If the operator does not notice the warning or does not operate it for some reason, the engine may be damaged or, in the worst case, a fire may occur. is there.

An object of the present invention is to eliminate the above-mentioned inconvenience of the remote control device for a propulsion device in a conventional ship, and more specifically, the engine of the propulsion device has an abnormality such as overheat. In addition to issuing a warning with a buzzer or lamp when it does, the engine speed can be automatically controlled on behalf of the operator to prevent engine damage and fire from occurring. The purpose is to provide an operating device.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, the present invention provides an actuator for operating a clutch and a throttle of a propulsion machine as described in claim 1 above. Placed in the room,
In a ship in which operating means for operating the actuator via electric transmission means is installed in a marine vessel seat arranged away from the engine room, the electric transmission means is
It is characterized by having a control function of automatically lowering the engine speed according to an abnormal situation of the engine of the propulsion machine.

[0007]

[Operation] According to the above configuration, when an abnormal situation such as overheating occurs in the engine of the propulsion device, not only the buzzer or lamp is used to issue a warning, but also the electric transmission means itself for operating the actuator. However, since the actuator is controlled so as to automatically reduce the engine speed based on the detection of an abnormal situation, damage to the engine or the occurrence of a fire can be avoided even if the operator neglects to take appropriate action.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a remote control device for a propulsion device in a ship according to the present invention will be described below with reference to the drawings.

1 and 2 show the arrangement of a propulsion machine remote control device on a ship, in which the engine 8 and the drive 9 of the propulsion machine together with the control unit 3 and the actuator 4 are shown in FIGS. , The engine 8 located in the engine room at the bottom of the hull
While the propeller 10 driven by the drive 9 is arranged outside the ship, the engine 8 and the drive 9 are driven via the control unit 3 and the actuator 4.
Remote control levers 1A, 1B, 1C for operating
The maneuvering seats (Station 1, Station 2,
One is installed at each station 3).

FIG. 3 shows an operation system of the remote control device for the propulsion device of the present embodiment arranged on the vessel as described above.
The remote control levers 1A, 1B, 1C respectively installed in the station 3) as operating means at the time of maneuvering are connected to the control unit 3 via the changeover switches 2A, 2B, 2C, respectively. 2A, 2B, 2C enable the marine vessel maneuvering by the remote control levers 1A, 1B, 1C at that location by pushing any one of them. It is possible to operate the ship by lever 1A.

Each of the changeover switches 2A, 2B, 2C
Is only when the remote control levers at each switching station (for example, the remote control levers 1A and 1B when switching from the operation at station 1 to the operation at station 2) are in the neutral position. It can be switched.

The control unit 3 to which the change-over switches 2A, 2B and 2C are connected is connected to a battery 5 which is a power source of an electric system, and is connected to a warning buzzer 6 and a warning lamp 7 for warning an engine abnormality. The engine 8 throttle and drive 9
An actuator 4 for operating the shift device is connected.

The warning buzzer 6 and the warning lamp 7 are attached to, for example, an instrument panel (operation panel) in the cabin of a cabin or a flying bridge.

The actuator 4 is provided with a throttle motor 41 for operating a throttle and a shift motor 43 for performing a shift operation. A potentiometer 42 for detecting the throttle state is connected to the throttle motor 41. , The shift motor 43 is connected to a potentiometer 44 for detecting the shift state, and these potentiometers 42, 44 are
Both are connected to the control unit 3.

The propulsion unit operated by the actuator 4 controlled by the control unit 3 has its engine 8 and drive 9 arranged in the engine room of the hull and the propeller 10 arranged outside the ship. The throttle motor 41 of the actuator 4 operates the throttle of the engine 8, and the shift motor 43 of the actuator 4 operates the shift device of the drive 9.

In the remote control device of the present embodiment having the above-mentioned operation system, one of the changeover switches 2A, 2B and 2C is pushed from any one of the station 1, station 2 and station 3 to operate the switch. By operating any one of the remote control levers 1A, 1B and 1C from the place, an electric signal of the operation is transmitted to the control unit 3.

Then, the throttle motor 41 and the shift motor 43 of the actuator 4 are driven by the electric signal from the control unit 3, whereby the throttle operation of the engine 8 and the shift operation of the drive 9 are performed, and the throttle state thereof is obtained. And the shift state are detected by the potentiometers 42 and 44 and input to the control unit 3, and at the same time, the exhaust temperature, the cooling water temperature, the cooling water amount, which indicates the operating state of the engine 8,
Oil pressure and the like are detected and input to the control unit 3.

For cooling the engine 8, a cooling system is adopted in which water pumped up from the outside is used as cooling water to cool the engine 8 and then discharged to the outside again. In this case, the water is pumped up. The amount of cooling water used is different between seawater and fresh water.

Engine 8 by control unit 3
As for the control of the throttle valve, as shown in FIG. 4, for example, when the cooling water temperature indicating the operating state of the engine 8 is equal to or lower than the upper limit value, that is, when it is input to the control unit 3 that the engine 8 is in the normal operating state, The motor 41 remains in the normal driving state, and the engine speed is controlled to increase or decrease according to the operation amount of the remote control lever.

However, when the operation of the engine 8 becomes abnormal and the cooling water temperature becomes higher than the upper limit value due to overheating or the like, the detection result is input to the control unit 3, and the warning buzzer 6 and the warning lamp 7 cause the engine to operate. When the abnormality 8 is warned, the control unit 3 automatically outputs the special control signal to the throttle motor 41.

Then, the special control signal drives the throttle motor 41 in a direction to slowly return the throttle lever of the engine to the idling position, and the driving of the throttle motor 41 by the special control signal continues until the throttle lever returns to the idling position. Becomes

As a result of the engine speed being lowered by returning the throttle lever to the idling position, the overheated state of the engine 8 is eliminated and the cooling water temperature returns to below the upper limit value, which is input to the control unit 3. Then, the output of the special control signal from the control unit 3 is automatically released, the throttle motor 41 enters the normal driving state, and the increase / decrease control of the engine speed according to the operation amount of the remote control lever is restarted. Becomes

[0023]

According to the remote control device for a propulsion device in a ship of the present invention as described above, when an abnormality such as overheat occurs in the engine of the propulsion device, not only a warning is given by a buzzer or a lamp, but also Since the engine speed is automatically controlled on behalf of the operator, even if the operator neglects the operation to deal with the occurrence of the abnormality, it is possible to prevent the engine from being damaged or the fire to occur.

[Brief description of drawings]

FIG. 1 is an explanatory side view showing an arrangement state of a remote control device for a propulsion device of the present invention on a ship.

FIG. 2 is an explanatory plan view of an arrangement state of the remote control device for the propulsion device shown in FIG.

FIG. 3 is an explanatory diagram showing an operation system of an embodiment of a remote control device for a propulsion device of the present invention.

FIG. 4 is a flowchart showing an operating state of the embodiment shown in FIG.

[Explanation of symbols]

 1A Operating Means (Remote Control Lever) 1B Operating Means (Remote Control Lever) 1C Operating Means (Remote Control Lever) 3 Electrical Transmission Means (Control Unit) 4 Actuator 8 Engine

Claims (1)

[Claims] 1. An actuator for operating a clutch and a throttle of a propulsion device is arranged in an engine room,
In a ship in which operating means for operating the actuator via electric transmission means is installed in a marine vessel seat arranged away from the engine room, the electric transmission means is
A remote control device for a propulsion device in a ship, which is provided with a control function of automatically lowering the engine speed according to an abnormal situation of the engine of the propulsion device.