JPS62155197A - Marine contrarotating propeller device with generator - Google Patents

Abstract

PURPOSE:To enable a generator to be arranged compactly in an engine room by placing the generator backward from a contrarotating device, in a marine contrarotating propeller device. CONSTITUTION:An inner shaft 5 is connected to the rotary shaft 1a of a main engine 1, and an outer shaft 6 is laid concentrically with the inner shaft 5. Propellers 10, 11 are mounted on the back ends of said inner shaft 5 and said outer shaft 6. Pinions 7d, 7e constituting first and second gear mechanisms are connected to each other through a flexible shaft 7f. Said flexible shaft 7f is driven by the main engine 1 through the first gear mechanism 7A, and transmits driving force to the outer shaft 6 through the second gear mechanism 7B. A generator 9 is coupled to the back end of the flexible shaft through a step-up gear 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a marine contra-rotating propeller device having a front propeller and a rear propeller that rotate in opposite directions, and particularly to a marine contra-rotating propeller device equipped with a generator. This invention relates to a reversing propeller device.

[Conventional technology]

2. Description of the Related Art Generally, in ships, in order to save energy, the rotational torque of a rotating shaft of a propeller is used to drive a generator to obtain electric power.

In the case of a normal single-shaft ship, as shown in Figure 4, the main engine 1'
A gear is formed on the outer periphery of the flywheel 2' attached to the rotating shaft 3'' rearward of the rotary shaft 3'', and the step 7 gear 6' meshes with this gear.The step up gear 6' The rotating shaft G'a of the generator 10' is connected to the rotating shaft 10'a of the generator 10' via an elastic joint 8' and an upstream speed increaser W19'.

The generator 10' is disposed on the side of the rotating shaft 3', facing the main engine 1' so as not to interfere with the main engine 1'.゛Therefore, a single-shaft ship (i, main B1l3g1' l: , k Q I) equipped with such a generator 10' sails while rotating the propeller 4' through the rotation m3', but during sailing. The rotational torque of the rotating shaft 3' is transmitted to the speed increasing device 9' through the gear on the outer periphery of the flywheel 2', the step-up gear 6'1, and the elastic joint 8', and the speed is increased by this speed increasing device 9'. After that, the rotation axis 1 of the power generation elIO'
0'a, power generation is performed at the power generation shore 10'.

By the way, generally, counter-rotating marine propeller devices are j15
, 6, the inner sleeve 11' is rotatably driven by the rotation shaft 1'n of the main shaft 1', and the inner sleeve 11' is arranged concentrically with the inner sleeve 11'. The outer shaft 12' can be reversed by
A rear propeller 16' and a front propeller 13' are attached to the inner sleeve 11' and outer shaft 12', respectively.

In order to reverse the inner sleeve 11' and the outer shaft 12',
The outer sleeve H112' is connected to the inner sleeve 11' via a reversing device 7' and an elastic joint 8'. Generally, a planetary gear mechanism or the like is used as the reversing device 7'.

Therefore, during navigation, the rear propeller 16'
' is directly rotationally driven by the rotating shaft of the main engine 1' through the front propeller, while the front propeller is equipped with an outer shaft 12' and a reversing device r!
17', rotation in a direction opposite to that of the inner shaft 11' is transmitted.

When a generator is attached to a marine contra-rotating propeller device as described above, since the reversing device 7' and the elastic joint 8' are arranged behind the flywheel 2', the normal When the rotating torque is extracted from the flywheel 2' as in the case of a single-shaft ship, the reversing device 7' and the generator interfere with each other, making it difficult to arrange the generator.

Conventionally, when a generator is attached to a marine double counterbalancing propeller device, a 7-line wheel 17' is attached to the end of the crankshaft 1'1) on the front end surface of the main engine 1', as shown in Figure 5. Electric power is generated from a shaft power generation rotor 15' attached to the outer periphery of the flywheel 17' and a shaft power generation stator 14' disposed close to the rotor 15' so as to cover the rotor 15' from the outer periphery. As shown in the ttSG diagram, a generator 10' is connected to a camshaft drive lever t5' built in the main engine 1' via a step gear 6'' and a speed increasing device 9'. The power cable 10' is installed on the side of the main engine 1'.

Therefore, in a contra-rotating marine propeller device with a generator as shown in FIG.
On the other hand, in a marine counter-rotating propeller device with a generator as shown in Fig. trS6, the rotational torque of the main ('3. , step-up gear 6' and speed increasing device 9' to power generation 1110' to generate power.

[Problem that the invention seeks to solve]

However, in the conventional marine counter-rotating propeller device with a generator as described above, in the former conventional example, the generator is disposed at the front end of the main engine 1', and in the latter conventional example, the generator is disposed at the front end of the main engine 1'. A step-up gear 6', a generator 10', etc. are installed in the side force of ', and a complicated reversing device 7' is installed.
In any case, it is difficult to arrange various equipment in the engine room, and the space in the engine room becomes very narrow, and the Isoseki room may have to be expanded.

The present invention aims to solve these problems by making it possible to easily and compactly install a generator inside the isosen chamber (to make effective use of the space inside the isosen chamber). , an object of the present invention is to provide a counter-rotating marine propeller device with a generator.

[Means for solving problems]

Therefore, the counter-rotating propeller device for a marine vessel equipped with a power generator of the present invention has an inner shaft that is rotationally driven by the rotating shaft of the main engine, and an outer shaft that is arranged concentrically with the inner shaft and can be rotated. In a marine double anti-balanced propeller device, which is equipped with a rear propeller and a front propeller, the main rotary shaft rotates the first gear through the rotary shaft and the second propeller.
[A flexible shaft capable of transmitting rotational driving force to the outer shaft through the rock is arranged parallel to the inner sleeve and outer shaft, and a generator connected to the flexible shaft is attached.] It is characterized by being

[For production]

In the marine counter-rotating propeller device with a generator of the present invention described above, the outer shaft has PtSi teeth 'fL11? The rotational torque in the direction opposite to the rotational shaft of the main engine is transmitted from the rotational shaft of the main engine through the deflection shaft and the second gear, and the rotational torque is driven in the direction opposite to that of the inner sleeve.

In addition, a power generation unit of 1 m is connected to the above-mentioned deflection shaft, and power generation is performed by the rotation of the above-mentioned deflection shaft.

〔Example〕

Hereinafter, power generation as an embodiment of the present invention will be explained with reference to the drawings. jl
(・To explain the contra-rotating propeller device for marine vessels, Figure 1 is a longitudinal sectional view of it, Figure 2 is a sectional view taken along the ■-■ arrow in Figure 1, and Figure 3 is a left half and right half. first for each of
l1la-nla arrow cross section in the figure and 1111J l
It is a composite diagram showing a cross section taken along the lb arrow.

As shown in FIG. 1, the rotating shaft 1a of the main engine 1 has an inner shaft 5.
are connected to each other, and an outer shaft 6 is arranged concentrically with the inner shaft 5, and a rear propeller 11 and a front propeller 10 are attached to the rear ends of the inner shaft 5 and the outer shaft 6, respectively. .

As shown in Figures 1 to 3, on the outer periphery of the inner shaft 5, there is a
A gear 7a of t51 is supported and disposed concentrically with the inner shaft 5 by a bearing 711, and this gear 7a of t51 connects to the rotating shaft 1a of the main engine 1 via the hollow shaft 4 split in two and the elastic joint 3.
The inner shaft 5 rotates in the same direction as the inner shaft 5.

Further, the idler tooth Ill 7 Q is connected to the first tooth rB
7a, and is arranged so as to mesh with the first pinion 7d supported by the bearing 71+, and these first teeth qt7, 1. Idler teeth t7c
and the mountain rat of fjSl by the first binion 7d
a Horizontal 78 is constructed.

Further, the outer shaft 6 has its curved end supported by a bearing 7b and a thrust bearing, and twelve gears 7b are provided at the front end of the outer shaft 6.

The second pinion 7e meshes with the second hinge [71] and is supported and disposed concentrically with the pinion 7d of Pt51 by a bearing 711, and the second pinion 7e and the second gear 7b The second tooth is Isokare 7I3.
IJr is configured.

On the other hand, Pt51 and second pinion 7d third and 7e
penetrates through these pinions 7d and 7e to form the inner sleeve 5.
and a deflection shaft 7f disposed parallel to the outer shaft 6,
The front and rear ends of the deflection shaft 7r are connected to each other, and the deflection shaft 7f is connected to the tooth l of tjSl.
It is rotatably driven by the rotary shaft 1fi of the main engine 1 through the two-split hollow shaft 4 and the elastic joint 3, and transmits rotational driving force to the outer shaft 6 through the mechanism 7B to the second gear. .

h1 idler gear 7c, first binion 7d.

The second pinion 7e and the deflection shaft 7 [are arranged symmetrically in terms of force on the gears 7a and 71 of fjSl and fjS2], and the deflection shaft 7f and the first
The reversing device 7 is constituted by the fifth and second floats 7Q) 3 and 7+1. By the way, at the rear end of one of the deflection shafts 7r, electricity is generated via a speed increasing device 8. The former Ryo 9 is placed at the rear of the reversing device, which has a wide open space.

Note that the reference numeral 2 in FIG. 1 indicates a flywheel attached to the rotating shaft 1a, and 7g indicates an inner sleeve bearing.

Since the marine contra-rotating propeller device with a generator as an embodiment of the present invention is configured as described above, the main engine 1
The rotational torque of the rotating shaft 1a is directly transmitted to the inner shaft 5 to rotationally drive the rear propeller 11, while the elastic joint 3
and is transmitted to the gear 7a of f51 via the hollow shaft 4 split in two.

As shown in FIG. 13, the first gear 7a is rotated by the pinion 7d of the idler tooth qL7c*m1.

The rotational direction is converted to the opposite direction via the deflection shaft 7f and the second pinion 7e, and is transmitted to the gear 7b of f52.

As a result, the outer shaft 6 is driven to rotate in the opposite direction to the inner shaft 5, and the front propeller 10 and the rear propeller 11 rotate in opposite directions.

At this time, the flexible shaft 7f is rotating at a speed increased to about five times the rotation speed of the rotating shaft 1a of the main engine 1 by the gear mechanism 7A of fjSl, and the rotation of the flexible shaft 7f accelerated in this way The torque is further increased in speed by the speed increaser 8 and transmitted to the generator 9, where the generator 9 generates electricity.

As described above, according to this embodiment, the power generator 9 is driven by the flexible shaft 7f that constitutes the reversing device 7 and rotates at high speed, and the reversing device 7 has sufficient engine room space.
Since the generator is located further back than the engine room, the generator can be easily and compactly attached to the engine room without expanding the engine room.

Therefore, the space in the engine room can be used effectively, and the conventional step-up gear for speed increase is no longer necessary, and the cost required for the device can be significantly reduced.

〔Effect of the invention〕

As described in detail above, according to the marine counter-rotating propeller device with a power generation mount of the present invention, the inner sleeve is rotatably driven by the rotating shaft of the main engine, and the inner sleeve is disposed concentrically with the inner shaft and rotates in reverse. In a contra-rotating marine propeller device, which has a rear propeller and a front propeller, each having a rotary outer shaft, the first gear 8! A flexible shaft is arranged parallel to the inner sleeve and the outer shaft as described in 1. With a simple configuration in which a generator is connected to the same flexible shaft, the generator can be easily and compactly installed in the engine room, making effective use of the space in the engine room. , step-up gears, etc. are no longer required, and the cost required for the X position can be significantly reduced.

[Brief explanation of drawings]

Figures 1 to 3 show a contra-rotating marine propeller device with a power generator as an embodiment of the present invention. Figure, tjS3
The figure shows the left half and right half of Figure 1, respectively.
Fig. 4 is a composite view showing the a-m n cross-section and the 1llb ll1b cross-section;
The figure is a vertical cross-sectional view of a conventional power generation device (contra-rotating marine propeller device with a hole), and Figure 6 is a vertical cross-sectional view of a conventional power generator (contra-rotating marine propeller device). It is a top view. 1. Main engine, 1a. Main (civilian rotating shaft, 2. Flywheel, 3'. Elastic joint, 4. Hollow shaft split in two, 5. Inner sleeve, 6.・・Outer shaft, 7・・Reversing device, 7Δ・・
1st gear Isokai, 7B... 2nd] 1errt4aJit
, 7a...first gear, 7b...rjS2 gear, 7c
...Idler gear, 7d...1st binion, 7e...
・Second binion, 7r... Flexible shaft, 7g... Inner shaft bearing, 7b... Bearing, 71... Thrust bearing, 8... Speed increase 'S position, 9... Generator, 10... Front propeller. , 11・
・Rear propeller. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 4 Figure 5 Figure 6 9° 10°

Claims (1)

[Claims] A marine contra-rotating propeller device that has a rear propeller and a front propeller on an inner shaft that is rotationally driven by the rotating shaft of the main engine, and an outer shaft that is arranged concentrically with the inner shaft and can be rotated. In the above, a flexible shaft is rotatably driven by the rotating shaft of the main engine via a first gear mechanism and is capable of transmitting rotational driving force to the outer shaft via a second gear mechanism. A counter-rotating marine propeller device with a generator, characterized in that a generator is attached, which is arranged parallel to an outer shaft and connected to the same deflection shaft.