KR20160046994A - Apparatus of counter rotating - Google Patents
Apparatus of counter rotating Download PDFInfo
- Publication number
- KR20160046994A KR20160046994A KR1020140142017A KR20140142017A KR20160046994A KR 20160046994 A KR20160046994 A KR 20160046994A KR 1020140142017 A KR1020140142017 A KR 1020140142017A KR 20140142017 A KR20140142017 A KR 20140142017A KR 20160046994 A KR20160046994 A KR 20160046994A
- Authority
- KR
- South Korea
- Prior art keywords
- shaft
- gear
- outer shaft
- propeller
- bearing
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
- B63H23/08—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing with provision for reversing drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
Abstract
A reverse gear device according to an embodiment of the present invention includes an outer shaft which is rotated by a power source and is provided with a front propeller and in which a hollow is formed and an inner shaft which is provided with a rear propeller and a hollow portion is formed between the outer shaft, A reverse gear device for reversely rotating the outer shaft and the inner shaft of a propulsion device, the reverse gear device comprising: a sun gear whose rear end is connected to a drive shaft of the power source by a coupling; A pinion gear meshing with the sun gear; A ring gear engaged with the pinion gear and engaged with the outer shaft and the flange; And a carrier having the pinion gear installed therein and the drive shaft passing through the drive shaft such that the drive shaft is coupled to the inner shaft and the flange.
In the reverse gear device according to the present invention, the drive shaft is passed through so that the inner shaft and the drive shaft are engaged with each other, and the inner and outer shafts are reversely rotated by the sun gear, the pinion gear, the ring gear and the carrier, As shown in FIG.
Description
The present invention relates to a reverse gear device.
The propeller is a device for propelling the ship by changing the power of the propulsion engine transmitted through the shaft system to thrust. Ship propellers include screw propellers, jet propellers, paddle cars, and void schneider propellers. Among them, helical propellers are the most popular because they have a relatively high propulsion efficiency, relatively simple structure, and relatively low production costs.
Spiral propellers can be classified by performance, with a fixed pitch propeller (FPP) fixed to a hub connected to a rotating shaft of the propeller wing, and a propeller wing can be moved in a hub connected to the rotary shaft, A controllable pitch propeller (CPP), a contra-rotating propeller that converts the rotational force exiting from the rear propeller to a propeller that rotates in the opposite direction to the rear propeller, propeller (CRP).
In general, a propulsion device for a ship using a double reversing propeller includes an inner shaft connected to a main engine in a hull, a front propeller coupled to a rear end of the inner shaft, a hollow outer shaft provided to rotate on the outer surface of the inner shaft, And a rear propeller coupled to the end portion. At this time, a contra-rotating gear box can be used as a means for rotating the rear propeller in the direction opposite to the rotation direction of the front propeller.
Such a double-inverted propeller is excellent in straightness of the route, low vibration, low noise, and high efficiency because propeller thrust is increased, because the torque unbalance induced by the propeller is reduced and the heeling torque is reduced. In addition, the dual inversion propeller can reduce the EEDI (Energy Efficiency Design Index), which can easily meet the EEDI requirements of the International Maritime Organization (IMO). The following description will be made with reference to the drawings.
1 is a view conceptually showing a conventional marine propulsion device.
1, a conventional
The conventional
In addition, due to the characteristics of the ship, which is a large structure, the propulsion device for
The
In recent years, research and development have been carried out to solve the above-mentioned problems and to enable the application of the double inverted propeller to the ship through the improvement of the mechanical reliability, the minimization of the production maintenance cost and the improvement of the operating economical efficiency.
Such conventional techniques are disclosed in Korean Patent Publication No. 10-1313587 (Feb.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a reversing gear device which is integrally provided with a power source and can achieve a compact structure.
A reverse gear device according to an embodiment of the present invention includes an outer shaft which is rotated by a power source and is provided with a front propeller and in which a hollow is formed and an inner shaft which is provided with a rear propeller and a hollow portion is formed between the outer shaft, A reverse gear device for reversely rotating the outer shaft and the inner shaft of a propulsion device, the reverse gear device comprising: a sun gear whose rear end is coupled to a drive shaft of the power source by a coupling; A pinion gear meshing with the sun gear; A ring gear engaged with the pinion gear and engaged with the outer shaft and the flange; And a carrier having the pinion gear installed therein and the drive shaft passing through the drive shaft such that the drive shaft is coupled to the inner shaft and the flange.
Specifically, the sun gear is supported by the carrier with a support bearing.
Specifically, the ring gear is characterized in that its rear end is flanged to the outer shaft.
In the reverse gear device according to the present invention, the drive shaft is passed through so that the inner shaft and the drive shaft are engaged with each other, and the inner and outer shafts are reversely rotated by the sun gear, the pinion gear, the ring gear and the carrier, As shown in FIG.
1 is a view conceptually showing a conventional marine propulsion device.
2 is a view illustrating a reverse gear device according to an embodiment of the present invention.
3 is a view illustrating a propulsion apparatus for a ship in which a reverse gear device is installed according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements have the same numerical numbers as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
2 is a view illustrating a reverse gear device according to an embodiment of the present invention.
2, a
Hereinafter, the power source 260 (see FIG. 3) side is referred to as a front side and the rear propeller 220 (see FIG. 3) side is defined as a rear side in contrast to a bow and aft end of a ship.
The
The
The
Here, the front end of the
The
When the diameter of the
The
When the power is transmitted to the
At this time, the rotation direction of the
In addition, a
The
The
Hereinafter, a propulsion device for a marine vessel equipped with a
3 is a view illustrating a propulsion apparatus for a ship in which a reverse gear device is installed according to an embodiment of the present invention.
3, the
The
The
Each of the
The
A
In addition, a lubricating oil passage is formed between the
Here, the lubricating oil may be supplied from the outside of the
The
For example, when the
In this embodiment, the
Here, the thrust transmitting inner shaft bearing 280 constitutes a ring-shaped inner ring, and the thrust transmitting outer shaft bearing 270 forms an annular outer ring and is provided between the
The thrust transmission inner shaft bearing 280 and the thrust transmission outer shaft bearing 270 support the
Specifically, the thrust transmission outer shaft bearing 270 is provided on the inner peripheral surface of the
For example, the first outer shaft bearing 271 may be provided on the
The thrust transmitting inner shaft bearing 280 is tapered corresponding to the thrust transmitting outer shaft bearing 270 so as to contact or transmit the reaction force to the thrust transmitting outer shaft bearing 270, The
For example, the thrust transmission inner shaft bearing 280 may comprise a first inner bearing bearing 281 and a second inner bearing bearing 282 in pairs. The first
In this embodiment, to transmit the reaction force against the thrust generated from the rear of the
The second inner shaft bearing 282 is connected to the
In this embodiment, the cross-sectional area decreases as the first outer shaft bearing 271 moves forward, and as the cross-sectional area increases as the second outer shaft bearing 272 moves forward, the
The thrust transmitting inner shaft bearing 280 and the thrust transmitting outer shaft bearing 270 are provided adjacent to each other in front of the
To this end, the
An
As described above, in this embodiment, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
100: reverse gear device 120: sun gear
130: Pinion gear 140: Ring gear
150: Carrier 200: Ship propulsion device
210: Front propeller 220: Rear propeller
230: hub 240: outer shaft
250: inner shaft 260: power source
270: thrust transmission outer shaft bearing 271: first outer shaft bearing
272: Second outer shaft bearing 280: Thrust transmission inner shaft bearing
281: first inner shaft bearing 282: second inner shaft bearing
Claims (3)
A sun gear whose rear end is connected to a drive shaft of the power source by a coupling;
A pinion gear meshing with the sun gear;
A ring gear engaged with the pinion gear and engaged with the outer shaft and the flange; And
Wherein the pinion gear is installed and the drive shaft is disposed so that the drive shaft passes through the inner shaft and the flange.
Is supported on the carrier by a support bearing.
And the rear end of the ring gear is flanged to the outer shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140142017A KR20160046994A (en) | 2014-10-20 | 2014-10-20 | Apparatus of counter rotating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140142017A KR20160046994A (en) | 2014-10-20 | 2014-10-20 | Apparatus of counter rotating |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20160046994A true KR20160046994A (en) | 2016-05-02 |
Family
ID=56021345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140142017A KR20160046994A (en) | 2014-10-20 | 2014-10-20 | Apparatus of counter rotating |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20160046994A (en) |
-
2014
- 2014-10-20 KR KR1020140142017A patent/KR20160046994A/en not_active Application Discontinuation
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