JPS5925759Y2 - Z type propulsion device - Google Patents

Description

[Detailed explanation of the invention] This invention is a Z-type propulsion device (
This invention relates to improvements to the steering system of a dual-rudder thruster.

The conventional Z-type propulsion device has an input shaft 1 as shown in FIG.
A rotating cylinder 5 equipped with a vertical shaft 2 rotated by a vertical shaft 2 and a propeller shaft 4 having a propeller 3 and rotated by the vertical shaft 2 is connected to an electric motor 6, a variable displacement hydraulic pump 7, and a fixed displacement hydraulic motor 8. It has a structure in which it is rotated via a worm shaft 10 and a worm wheel 11 by a dedicated steering drive device 9.

However, with this structure, it is necessary to take the trouble to install a steering drive device 9 that requires a high-pressure control mechanism, which increases equipment and operating costs, and also causes problems with the mechanism of the propeller shaft 4, etc. and the steering drive device 9. Since it is necessary to provide a separate lubrication system for these due to the differences in the

This idea was made in view of the above circumstances, and aims to provide a Z-type propulsion device that does not require a high-pressure oil control mechanism, can integrate a lubrication system, and is simple in structure and economical. The purpose is to

This invention will be explained below with reference to the drawings.

FIG. 2 shows an embodiment of this invention, in which reference numeral 20 denotes a rotating cylinder rotatably attached to the hull 21.

A vertical shaft 22 is supported almost vertically in the center of the rotating tube 20, and a propeller shaft 24 having a propeller 23 at its outer end is attached to a bevel gear attached to the lower portion of the rotating tube 20. 25 is the bevel gear 2 attached to the vertical shaft 22.
6 and is pivoted almost horizontally.

The vertical shaft 22 is connected to an input shaft 28 rotated by a drive device (main engine) 27 via bevel gears 29 and 30.

Therefore, when the drive device 27 is actuated, its rotation is caused by the input shaft 28, the bevel gear 29, 30, the vertical shaft 22, the bevel gear 25,
．． 26 and is transmitted to the propeller 23 via the propeller shaft 24.

The basic structure of this Z-type propulsion device is not particularly different from the conventional one.

This invention is constructed so that the rotation of the input shaft 28 is extracted by a power take-off mechanism 31 to rotate the rotating tube 20. An example of the power take-off mechanism 31 is shown in FIG.

In Fig. 3, numeral 32 indicates three gears 33, 34, 35.
The first gear train (group) consists of:

These gears 33, 34, 35 are respectively connected to the input shaft 28,
It is attached to the first rotating shaft 36 and the second rotating shaft 37, and the gear 34 is located between the other two gears 33 and 35 and is meshed with them.

The first rotating shaft 36 and the second rotating shaft 37 are provided with a constant speed clutch mechanism 38 for forward rotation and a constant speed clutch mechanism 39 for reverse rotation, respectively.
are connected.

These constant speed clutch mechanisms 38 and 39 are called slip control clutches, and when the rotation speed of the rotating shaft 36 and 37 is high, they automatically increase the amount of slip.
Conversely, when the rotational speed of the rotating shafts 36 and 37 decreases, it has a function of reducing the slip amount to keep the rotational speeds of the first output shaft 40 and the second output shaft 41 constant.

In addition, the first output shaft 40, the second output shaft 41, and the intermediate shaft 42
gears 44, 45, 46 are attached to each.

The intermediate gear 46 is meshed with the other two gears 44 and 45 to form the second gear train 43 together with them, and when the constant speed clutch mechanism 38 for forward rotation is engaged (the first output shaft 40 rotates forward and when the constant speed clutch mechanism 39 for reverse rotation is engaged, the rotation of the second output shaft 41 is caused by the rotation of the gear 45.
．． 46 and 44 to the first output shaft 40 to reverse the rotation.

Here, the constant speed clutch mechanisms 38 and 39 are selectively engaged as needed, and both are not engaged at the same time.

The first output shaft 40 has a worm shaft 4 that is engaged with a worm wheel 47 provided on the rotating cylinder 20.
8 are connected via gears 49 and 50.

The output shaft 40 , 41 , the second gear train 43 , the worm shaft 48 , and the like constitute a rotation transmission mechanism 51 .

Furthermore, the gear 45 of the second gear train 43 is equipped with an electric motor 52 that can rotate in forward and reverse directions.
and are connected via an electromagnetic clutch 57.

The electric motor 52 rotates the rotating tube 20 when the drive device 27 is stopped or the clutch 58 is disengaged.
It rotates.

A manual bundle 59 is removably provided on the shaft 56, allowing manual operation of the rotating cylinder 20.

The gears 53, 54, 55, and 45 in the figure constitute a reducer, but in this way, the electric motor 52 and manual bundle 59
This is convenient because the rotating cylinder 20 can be easily rotated by the rotation cylinder 20.

60 is a lubricating oil pump connected to the first rotating shaft 36 via a clutch 61, which provides lubrication for the entire system.

62 is a brake provided on the first output shaft 40.

Next, the operation of the Z-type propulsion device according to the invention constructed as described above will be explained.

To move the boat forward, as usual, the drive device 27 is activated, the clutch 58 is engaged, and the propeller 23 is rotated by the drive device 27.

In the above case, when changing the ship's direction of travel, either one of the constant speed clutch mechanisms that was previously disengaged must be
This is done by turning the turning cylinder 20 to the left or right.

In this case, the rotating cylinder 20 rotates at a constant speed regardless of the rotational speed of the drive device 27.

Needless to say, the electromagnetic clutch 57 is disengaged under normal conditions.

Furthermore, if it is necessary to move the rotating tube 20 while the drive device 27 is stopped or the clutch 58 is disengaged, the electromagnetic clutch 57 is engaged and the electric motor 52 is activated, or the electromagnetic clutch 57 This is done by operating the manual bundle 59 with the switch turned off.

As mentioned above, the Z-type propulsion device of this invention has a drive device 27.
The power is extracted by the power extraction mechanism 31 and the rotating cylinder 2
Since the structure is such that the 0 is turned, there is no need for a dedicated steering drive device as in the past, and the entire lubrication system can be integrated into one.

Therefore, it has the advantage of being relatively cheap not only in equipment costs but also in operation and maintenance costs.

Furthermore, since a hydraulic pump or hydraulic motor is not used in the steering system and no high-pressure oil control mechanism is required, maintenance and inspection are easy, and since a dedicated steering drive device is not required, the capacity of auxiliary equipment is small. It also has advantages such as being easy to use.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional Z-type propulsion device, and FIGS. 2 and 3 are schematic diagrams showing an embodiment of the Z-type propulsion device according to this invention. 20... Swivel tube, 21... Hull, 22
... Vertical axis, 23 ... Propeller, 24
・・・・・・Lipper shaft, 27・・・・Drive device,
28... Input shaft, 32... First gear train, 36... First rotating shaft, 37... Second
Rotating shaft, 38... Constant speed clutch mechanism for forward rotation, 3
9... Constant speed clutch mechanism for reverse rotation, 51...
...Rotation transmission mechanism.

Claims (1)

[Scope of utility model registration request] A rotating tube rotatably attached to the hull, an input shaft rotated by a required drive device mounted on the hull, and a vertical shaft supported substantially perpendicularly to the center of the rotating tube and rotated by the input shaft. a propeller shaft that is supported substantially horizontally at the bottom of the rotating tube and rotated by the vertical shaft; a propeller that is attached to the outer end of the propeller shaft and rotates together with the propeller shaft; and a propeller that is rotated by the input shaft. a first gear train, a constant speed rotation clutch mechanism for forward rotation connected to a first rotation shaft of the first gear train, and a constant speed rotation clutch for reverse rotation connected to a second rotation shaft of the first gear train. and a rotation transmission mechanism that selectively transmits the rotation of the constant speed rotation clutch mechanism for forward rotation and the constant speed rotation clutch mechanism for reverse rotation to the rotating tube as necessary to rotate the rotating tube with respect to the hull. A Z-type propulsion device characterized by: