JP2003081186A - Power generating and propelling system for ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem on a propelling device for a conventional ship that a clutch of a power transmission device formed as a mechanical or hydraulic clutch is subjected to impact by abrupt torque caused by the influences of the inertial mass of a propeller during fitting the clutch or the clutch is subjected to greater fitting/unfitting operation force as the transmission torque (load) of an engine output is greater during fitting/unfitting the clutch. SOLUTION: When the clutch 3d of the power transmission device 3 is shifted by a shift change lever 26, the shifting operation is detected by a sensor 26a and a motor 9 is driven in priority to the fitting/unfitting operation of the clutch 3d by the control of a controller 15. When the clutch 3d of the power transmission device 3 is shifted by the shift change lever 26, the shifting operation is detected by the sensor 26a and a load on the internal combustion engine 2 during fitting/unfitting the clutch 3d is shared with a motor 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention installs a power generation device for supplying electric power in a ship between an internal combustion engine for traveling and a power transmission device connected to the internal combustion engine, and is capable of driving for traveling. The present invention relates to the configuration of a power generation and propulsion system for a ship, which has a mechanism in which an electric motor is arranged in a power transmission device.

[0002]

2. Description of the Related Art Conventionally, a propulsion device for a ship is composed of an internal combustion engine, a power transmission device and the like. After the driving force of the internal combustion engine is reduced by the power transmission device, a propeller connected to the power transmission device is driven. To do. Further, the power transmission device is provided with a clutch, and is configured to connect or disconnect the transmission of the output of the internal combustion engine to the propeller or to switch between forward rotation and reverse rotation. The clutch is composed of a mechanical clutch such as a dog clutch or a cone clutch, or a hydraulic clutch, and is operated by a shift change lever arranged in a driving operation unit or the like.

[0003]

However, as described above, when the clutch is configured as a mechanical clutch or a hydraulic clutch, a shock is generated at the time of fitting due to a sudden torque generated by the influence of the inertial mass of the propeller. It could happen. In addition, when the transmission torque (load) of the engine output increases when the clutch is engaged or disengaged, there is a problem that the engagement and disengagement operation force of the clutch increases. Therefore, it is an object of the present invention to establish a method for reducing the impact when the clutch is engaged and the operating force when the clutch is engaged and disengaged due to the inertial mass of the propeller and the like.

[0004]

In order to solve the above problems, the present invention uses the following means. As set forth in claim 1, a generator device for supplying electric power onboard the ship is installed between an internal combustion engine for traveling and a power transmission device connected to the internal combustion engine, and a motor capable of driving for traveling is driven. In the mechanism arranged in the transmission device, when the clutch of the power transmission device is shifted, the shift operation is detected by the detection means, and the electric motor is driven prior to the engaging / disengaging operation of the clutch.

According to a second aspect of the present invention, a power generation device for supplying electric power onboard the ship is installed between the navigation internal combustion engine and the power transmission device connected to the internal combustion engine, and the navigation drive is possible. In a mechanism in which an electric motor is provided in a power transmission device, when the clutch of the power transmission device is shifted, the shift operation is detected by the detection means, and the load on the internal combustion engine side is shared by the electric motor when the clutch is engaged or disengaged. To do.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a marine vessel propulsion apparatus according to the power generation and propulsion system of the present invention, and FIG. 2 is a timing chart showing clutch switching control.

A propulsion device for a ship according to the power generation and propulsion system of the present invention will be described. The propulsion device 1 shown in FIG. 1 has an internal combustion engine 2 and a power transmission device 3 configured as a sail drive, and a propeller 4 is connected to the power transmission device 3. The driving force from the internal combustion engine 2 is transmitted to the propeller 4 while being decelerated by the power transmission device 3, and as a result, the propeller 4 is rotationally driven. Also,
In the propulsion device 1, a generator 10 which is a generator or a device having generator characteristics is interposed between the internal combustion engine 2 and the power transmission device 3. Then, the power generating device 10 is driven by the internal combustion engine 2, and the electric power generated by the power generating device 10 is used for driving the electric motor 9 described later,
It is also designed to be supplied as onboard power.

The power transmission path from the internal combustion engine 2 to the propeller 4 will be described. First, the crankshaft 2a of the internal combustion engine 2 and the input shaft 3a of the power transmission device 3 arranged substantially horizontally are connected. . In the power transmission device 3, the input shaft 3a is a transmission shaft 3 arranged in a substantially vertical direction.
The upper end of b is connected by the first bevel gear part 3e via the clutch 3d, and the lower end of the transmission shaft 3b and the output shaft 3c.
And are connected by the second bevel gear portion 3f.

The output shaft 3c of the power transmission device 3 is connected to the drive shaft 4a of the propeller 4. And the internal combustion engine 2
Drive output of the crankshaft 2a is transmitted to the input shaft 3a of the power transmission device 3, and then the clutch 3d and the transmission shaft 3 are transmitted.
It is transmitted to the drive shaft 4a of the propeller 4 through b and the output shaft 3c. The clutch 3d includes an input shaft 3a and a transmission shaft 3b.
It has a function of switching connection / non-connection with and a function of switching the rotation direction when transmitting the rotation of the input shaft 3a to the transmission shaft 3b.

That is, the propeller 4 of the output from the internal combustion engine 2
Transmission to the clutch can be made by connecting and disconnecting with the clutch 3d, or switching between forward rotation / reverse rotation (forward / reverse).
In this case, the switching operation of the clutch 3d is performed by the shift change lever 26. Shift change lever 26
Is connected to the controller 15 and the controller 1
5 controls the shift actuator based on the operation of the shift change lever 26 to operate the clutch 3d. The clutch 3d is a mechanical clutch such as a dog clutch or a cone clutch.

A relay (electromagnetic switch) 11, a rectifying device 12, a DC / DC converter 13, and a battery 14 are sequentially connected to the output section of the power generation device 10, and the battery 14 is connected via a controller 15. Connected to the electric motor 9. Then, the AC power generated by the power generation device 10 is rectified and smoothed by the rectification device 12 to be converted into DC, and then converted into a predetermined voltage by the DC / DC converter 13 to charge the battery 14. .
Power generation by driving this power generation device 10 and battery 1
Charging to 4 is mainly performed by using a part of the output of the internal combustion engine 2. Further, the relay 11 is controlled to be opened / closed by the controller 15, so that it is possible to switch whether the output of the power generation device 10 is supplied into the ship and whether the battery 14 is charged.

An electric motor 9 is installed at the upper end of the power transmission device 3. The electric motor 9 is driven by the electric power charged in the battery 14, and the driving of the electric motor 9 is controlled by the controller 15. The output shaft 9a of the electric motor 9 is connected to the transmission shaft 3b, and the propulsion device 1
Drive the propeller 4 only by the internal combustion engine 2, drive the internal combustion engine 2 while assisting the drive by the electric motor 9, or drive only by the electric motor 9.
It is possible to carry out by using three types of patterns. Further, the electric power from the power generation device 10 that has been rectified and smoothed by the rectifying device 12 is converted into alternating current by the inverter 16 and can be supplied onboard as alternating current power.

In the present example, the propulsion device 1 is configured as a sail drive in which the power transmission device 3 extends largely below the internal combustion engine 2 and the propeller 4 is directly attached to the power transmission device 3. However, it is also possible to configure a marine gear in which the propeller shaft of the propeller 4 is mounted at the rear end of the power transmission device 3.

Next, switching control of the clutch 3d will be described. Clutch 3d in this power generation and propulsion system
Switching control is performed by the shift change lever 2 of the clutch 3d.
When operating 6, the lever operation is performed by the controller 15
The electric motor 9 is driven prior to the engaging / disengaging operation of the clutch 3d.

That is, as shown in FIG. 2, when the clutch 3d is switched from the neutral state to the forward direction, there is some play in the shift change lever 26. After the time ta has elapsed, the clutch 3d is in the state of being fitted to the forward side.
When the operation of the shift change lever 26 is started, the sensor 2 attached to the shift change lever 26
6a detects the operation of the shift change lever 26,
The fact is input to the controller 15.

When the input that the operation of the shift change lever 26 is started is input, the controller 15 outputs a signal to the shift actuator 27 to shift the clutch 3d to the forward side and drives the electric motor 9. . In this case, the driving of the electric motor 9 is started by a predetermined time t1 before the clutch 3d is actuated by the shift actuator 27 and fitted to the forward side.

The input shaft 3a of the power transmission device 3 which is rotationally driven by the internal combustion engine 2 and the transmission shaft 3b which is in a rotation stopped state.
When the clutches 3d and 3d are engaged, a sudden shock torque is generated due to the inertial mass of the propeller 4 and the like.

For example, usually, when the input shaft 3a and the transmission shaft 3b are connected without driving the electric motor 9, a large shock torque Ti is generated, which causes noise and shock. On the other hand, in this example, the input shaft 3a and the transmission shaft 3b are controlled to drive the electric motor 9 and rotate the transmission shaft 3b earlier by a predetermined time t1 than when they are connected by the clutch 3d. , The inertial mass of the propeller 4 and the rotational speed difference between the input shaft 3a and the transmission shaft 3b are reduced.
The shock torque when connecting a and the transmission shaft 3b is T
I try to keep it as low as c.

As a result, the load applied to the clutch 3d portion can be reduced, and the noise and impact generated when the clutch 3d is engaged can be suppressed, and the reliability of the power transmission device 3 and the comfort during sailing can be improved. You can

On the other hand, when the clutch 3d is disengaged and the input shaft 3a and the transmission shaft 3b which are connected to each other and are in a rotationally driven state are separated from each other, a predetermined shift operation force is required to disengage the clutch 3d. is there. For example, when the input shaft 3a and the transmission shaft 3b, which are connected by inserting the clutch 3d in the forward direction, are disconnected while the electric motor 9 is not driven, a large shift operation force Pi is required. The shift operation force Pi increases as the transmission torque (load applied to the clutch 3d portion) of the output from the internal combustion engine 2 to the propeller 4 side increases.

Therefore, in the case of this example, the clutch 3d is fitted in the forward direction and the propeller 4 is connected by the internal combustion engine 2 and the electric motor 9.
When the clutch 3d is returned to the neutral side and the input shaft 3a and the transmission shaft 3b are disengaged from each other, the drive of the electric motor 9 is controlled as follows. That is, when the operation of the shift change lever 26 from the forward side to the neutral position is started, the fact is detected by the sensor 26a and is input to the controller 15. Although the clutch 3d is engaged / disengaged after a predetermined time tb from the start of the operation of the shift change lever 26, the driving of the electric motor 9 is continued for a predetermined time t2 after the clutch 3d is engaged / disengaged. Thus, the control by the controller 15 is performed.

As described above, by driving the electric motor 9 when the clutch 3d is engaged or disengaged, the clutch 3d between the input shaft 3a connected to the internal combustion engine 2 and the transmission shaft 3b on the propeller 4 side is driven. The load applied to the section can be shared by the electric motor 9 that is rotationally driven to reduce the load.
The shift operation force when engaging and disengaging the clutch 3d to separate the input shaft 3a and the transmission shaft 3b can be reduced to Pc. As a result, the load applied to the clutch 3d portion can be reduced and the reliability of the power transmission device 3 can be improved.

When shifting the clutch 3d from the neutral position to the reverse side and when shifting from the reverse side to the neutral position, the shift operation to the forward side is performed.
And the same as when shifting from the forward side to the neutral position.

[0024]

Since the present invention is constructed as described above,
The following effects are achieved. That is, as set forth in claim 1, a generator for supplying electric power onboard is installed between the internal combustion engine for navigation and the power transmission device connected to the internal combustion engine to provide an electric motor capable of driving for traveling. In the mechanism provided in the power transmission device, when the clutch of the power transmission device is shifted, the shift operation is detected by the detection means, and the electric motor is driven prior to the engaging / disengaging operation of the clutch. Also, it is possible to reduce the rotational speed difference between the input shaft and the transmission shaft of the power transmission device and suppress the shock torque generated when the clutch is engaged. As a result, it is possible to reduce the load applied to the clutch portion, suppress noise and impact generated when the clutch is engaged, and improve the reliability of the power transmission device and the comfort during traveling.

According to a second aspect of the present invention, a generator device for supplying electric power onboard the ship is installed between the internal combustion engine for traveling and the power transmission device connected to the internal combustion engine, and the vehicle can be driven for traveling. In a mechanism in which an electric motor is provided in a power transmission device, when the clutch of the power transmission device is shifted, the shift operation is detected by the detection means, and the load on the internal combustion engine side is shared by the electric motor when the clutch is engaged or disengaged. Therefore, the load applied to the clutch portion between the input shaft of the power transmission device connected to the internal combustion engine and the transmission shaft on the propeller side can be shared and reduced by the electric motor driven to rotate. It is possible to reduce the shift operation force when engaging and disengaging the clutch to separate the input shaft and the transmission shaft. As a result, the load applied to the clutch portion can be reduced and the reliability of the power transmission device can be improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a ship propulsion device according to a power generation and propulsion system of the present invention.

FIG. 2 is a diagram showing a timing chart related to clutch switching control.

[Explanation of symbols]

1 propulsion device 2 Internal combustion engine 3 power transmission device 3a Input shaft 3b Transmission shaft 3d clutch 4 propellers 10 Power generation equipment 15 Controller 26 Shift change lever

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F02D 29/02 ZHV F02D 29/02 ZHVD F16D 23/10 F16D 23/10 (72) Inventor Takayuki Toda Osaka Prefecture 1-32, Chayamachi, Kita-ku, Osaka Yanma Diesel Co., Ltd. (72) Inventor Junichi Hitachi, 1-32, Chayamachi, Kita-ku, Osaka-shi, Osaka Prefecture F-term in Yanma Diesel Co., Ltd. (reference) 3G093 AA07 AA16 AA19 BA03 BA32 DB10 DB23 EB00 EC02 3J056 AA03 AA63 BB05 BC01 BD12 BD34 DA02 DA07 GA02 GA14

Claims (2)

[Claims] 1. A power generation device for supplying electric power onboard a ship is installed between a navigation internal combustion engine and a power transmission device connected to the internal combustion engine, and an electric motor capable of running and driving is used as the power transmission device. In the arranged mechanism, when the clutch of the power transmission device is shifted, the shift operation is detected by the detection means, and the electric motor is driven prior to the engagement / disengagement operation of the clutch. system. 2. A power generating device for supplying electric power onboard the ship is installed between a cruise internal combustion engine and a power transmission device connected to the internal combustion engine, and an electric motor capable of running and driving is used as the power transmission device. In the arranged mechanism, when shifting the clutch of the power transmission device, the shift operation is detected by the detecting means, and the load applied to the internal combustion engine side is shared by the electric motor when the clutch is engaged or disengaged. Power generation and propulsion system for ships.