KR20140115073A - Apparatus for propelling a propeller - Google Patents

Apparatus for propelling a propeller Download PDF

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Publication number
KR20140115073A
KR20140115073A KR1020130029685A KR20130029685A KR20140115073A KR 20140115073 A KR20140115073 A KR 20140115073A KR 1020130029685 A KR1020130029685 A KR 1020130029685A KR 20130029685 A KR20130029685 A KR 20130029685A KR 20140115073 A KR20140115073 A KR 20140115073A
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KR
South Korea
Prior art keywords
gear
shaft
propeller
main
reverse
Prior art date
Application number
KR1020130029685A
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Korean (ko)
Inventor
정창록
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정창록
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Publication date
Application filed by 정창록 filed Critical 정창록
Priority to KR1020130029685A priority Critical patent/KR20140115073A/en
Publication of KR20140115073A publication Critical patent/KR20140115073A/en

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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
    • B63H23/02—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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The present invention relating to a propeller apparatus comprises a reverse-rotation driving device; a driving unit; a first propeller; and a second propeller. The reverse-rotation driving device includes a main shaft and a subordinate shaft which fit to each other to be able to rotate around the same axis; a main gear combined with the main shaft; a subordinate gear combined with the subordinate shaft; and multiple intermediate gears which receive a forward rotation of the main gear and then use the rotation to rotate the subordinate gear in a reverse direction. The driving unit connected to the main shaft rotates the main shaft. The first propeller positioned between the driving unit and the reverse-rotation driving device is combined with the main shaft. The second propeller positioned between the driving unit and the reverse-rotation driving device is combined with the subordinate shaft.

Description

[0001] APPARATUS FOR PROPELLING A PROPELLER [0002]

The present invention relates to a propeller propulsion device, and more particularly, to a propeller propulsion device in which a propeller as a load is disposed between a drive portion and a reverse rotation drive mechanism to facilitate assembly work, shorten the assembly time, And to a propeller propulsion device capable of achieving a compact size.

In general, propellers are used in fields such as cooling fans, ventilators, blowers, ships, and aircraft.

In particular, a ship propulsion system, referred to as a Counter / Contra Rotating Propeller (CRP), has two propellers on the concentric axis with opposite rotation directions. Such a ship propulsion system can reduce noise and increase energy efficiency through the hydrodynamic interaction between the front propeller and the rear propeller.

In a conventional CRP marine propulsion system, two shafts are rotatably fitted to each other to form a double shaft, in which two motors rotate the double shaft in opposite directions to rotate the two propellers connected thereto in the opposite direction .

However, the CRP ship propulsion system as described above has a problem in that the configuration becomes complicated and the installation volume increases and the cost increases due to the installation of the two motors.

As an improvement over these problems, there is a reverse rotation drive mechanism disclosed in Korean Patent No. 10-0673560. The reverse rotation driving mechanism has a mechanism that enables the slave axis, which is concentric with the main slave shaft when the main shaft is rotated by the driving source, to rotate in the direction opposite to the main axis.

Such a conventional reverse rotation drive mechanism is disposed between the drive motor and the propeller as a load, and rotates the pair of propellers in opposite directions.

However, the conventional propeller propulsion device has a configuration in which a motor, a reverse rotation drive mechanism and a propeller are arranged in a line, in particular, a propeller is spaced far from the motor, and a propeller coupled to the output side end of the main coaxial shaft of the reverse rotation drive mechanism It is not easy to align the main shaft of the motor with the main shaft of the reversing rotation driving mechanism so that the assembling time is long and the flow of the main shaft or the subordinate shaft The rotation stability is lowered, and there is a problem that instability of the apparatus is caused.

Further, there is a problem that the distance between the motor and the propeller as a load is increased, and the overall size of the apparatus is increased.

Korean Patent No. 10-0673560

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a propeller propulsion device which is easy to assemble, shortens the assembling time, stabilizes the rotation stability of the device, Device.

The above and other objects can be accomplished by the provision of a driven gear having a main shaft and a driven shaft which are coaxially coupled and rotatably engaged with each other, a driven gear coupled to the main shaft, a driven gear coupled to the driven shaft, A reverse rotation drive mechanism having a plurality of intermediate gears for rotating the driven gear in the reverse direction; A driving unit connected to the main coaxial shaft to rotate the main coaxial shaft; A first propeller disposed between the driving unit and the reverse rotation driving mechanism and coupled to the main shaft; And a second propeller disposed between the driving unit and the reverse rotation driving mechanism and coupled to the driven shaft.

The plurality of intermediate gears include a first intermediate gear engaged with rotation of the main gear, a second intermediate gear provided adjacent to the first intermediate gear and integrally rotating with the first intermediate gear, A first reverse intermediate gear for reversing the rotation of the second electric intermediate gear, a second reverse intermediate gear provided adjacent to the first reverse intermediate gear and rotating integrally with the first reverse intermediate gear, And a gear.

The power transmission apparatus further includes a transmission shaft to which the first transmission intermediate gear and the second transmission intermediate gear are coupled, and an inverting shaft to which the first reverse intermediate gear and the second reverse intermediate gear are coupled.

And a flow preventing portion for preventing a flow of the combined body of the driven shaft and the driven gear and the combined body of the main shaft and the driven gear.

According to the present invention, by arranging the propeller as a load between the drive unit and the reverse rotation drive mechanism, the gap between the drive unit and the propeller as a load becomes small, so that the assembling work is easy, the assembly time is shortened, , The size of the apparatus can be made compact.

1 is a view of a propeller propulsion device according to an embodiment of the present invention,
FIG. 2 is a perspective view showing the reverse rotation driving mechanism of FIG. 1,
FIG. 3 is an exploded perspective view of the reverse rotation driving mechanism of FIG. 2,
4 is a sectional view taken along the line IV-IV in Fig. 2,
5 is a view showing a connection between a main gear and a motor-driven unit in the reverse rotation drive mechanism of FIG. 2,
FIG. 6 is a view showing the connection between the electric power unit and the inverter unit in the reverse rotation drive mechanism of FIG. 2;
FIG. 7 is a view showing a connection between a reverse unit and a driven gear in the reverse rotation driving mechanism of FIG. 2;
8 is a view of a propeller propulsion device according to another embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Prior to description, elements having the same configuration are denoted by the same reference numerals in representative embodiments, and only other configurations are described for the other embodiments.

1 is a side view of a propeller propulsion system according to an embodiment of the present invention.

As shown in the drawing, a propeller propulsion device 100 according to an embodiment of the present invention includes an inversion rotation driving mechanism 110, a driving unit 180, a first propeller 190, a second propeller 200 ).

2 to 7 show a reverse rotation drive mechanism. The reverse rotation driving mechanism 110 includes a main shaft 112 and a driven shaft 114 which are concentric to each other and are rotatably fitted and engaged with each other, a main gear 130 coupled to the main shaft 112, And a plurality of intermediate gears for rotating the driven gear 160 in a reverse direction under the forward rotation of the driven gear 130. [

The main coaxial shaft 112 is rotatably supported by the first and second panels 120 and 122 at both ends thereof. The input side end of the main coaxial shaft 112 is connected to the driving unit 180 and the first propeller 190 is coupled to the input side end of the main operation side 112.

In the propeller propulsion device 100 according to an embodiment of the present invention, the main coaxial shaft 112 is formed in the shape of a solid shaft, the main coaxial shaft 112 is connected to the driving unit 180 and the coupling 185, Respectively.

The driven shaft 114 is disposed on the output side of the reverse rotation drive mechanism 110 and is rotatably supported by the second panel 122. [ The driven shaft 114 is formed in the form of a hollow shaft and is fitted so as to be rotatable relative to each other concentrically with the output side end of the main coaxial shaft 112. A second propeller (200) is coupled to the output side end of the driven shaft (114).

The main gear 130 is connected to the main coaxial shaft 112 and rotates integrally with the main coaxial shaft 112. The main gear 130 is separately formed from the main shaft 112 and is preferably coupled to the main shaft 112 by a known method such as keying or shrinking. However, if necessary, the main gear 112 may be integrally formed with the main shaft 112 .

The driven gear 160 is connected to the driven shaft 114 and rotates integrally with the driven shaft 114. The driven gear 160 is separately formed from the driven shaft 114 and is preferably coupled to the driven shaft 114 by a known method such as keying or shrinking. However, the driven gear 160 may be integrally formed with the driven shaft 114 .

The plurality of intermediate gears includes a first intermediate gear 141 that receives the rotation of the primary gear 130 and a second intermediate gear 141 that is provided adjacent to the first intermediate gear 141 and rotates integrally with the first intermediate gear 141 A first reverse intermediate gear 151 for reversing the rotation of the second electric intermediate gear 143 and a second reverse intermediate gear 151 provided adjacent to the first reverse intermediate gear 151, And a second reversing intermediate gear 153 rotating integrally with the driven gear 151 and rotating the driven gear 160.

The first transmission intermediate gear 141 and the second transmission intermediate gear 143 are coupled to the transmission shaft 145. The first transmission intermediate gear 141 and the second transmission intermediate gear 143 are connected to the transmission shaft 145, Thereby constituting a motor-driven unit 140.

The motor-driven unit 140 receives the rotation of the driven gear 130.

The plurality of power transmission shafts 145 are disposed radially symmetrically about the main coaxial shaft 112 and are rotatably supported at the opposite ends of the first and second panels 120 and 122, respectively. 2 and 3 show an example in which three transmission shafts 145 are arranged radially symmetrically about the main shaft 112 (see FIG. 5).

The plurality of first intermediate transmission gears 141 are coupled to the plurality of transmission shafts 145 so as to be connected to the main gears 130 and rotate integrally with the transmission shaft 145. A plurality of first intermediate gears 141 are also radially arranged about the main coaxial shaft 112 or the driven gear 130 as the plurality of transmission shafts 145 are arranged radially symmetrically about the main coaxial shaft 112 Are symmetrically arranged.

The plurality of second intermediate gears 143 are respectively coupled to the plurality of transmission shafts 145 adjacent to the plurality of first intermediate gears 141 to rotate integrally with the plurality of transmission shafts 145. The plurality of second intermediate gears 143 are also arranged radially symmetrically about the main shaft 112 in the same manner as the plurality of first intermediate gears 141.

The first reversing intermediate gear 151 and the second reversing intermediate gear 153 are coupled to the reversing axis 155 and the first reversing intermediate gear 151 and the second reversing intermediate gear 153 and the reversing axis 155, The inversion unit 150 is formed.

The inversion unit 150 serves to invert the rotation of the electric unit 140.

The plurality of inversion axes 155 are disposed symmetrically about the main axis 112 between the plurality of driving shafts 145 in a radial direction and are rotatably supported at both ends of the first and second panels 120 and 122 .

The plurality of first inversion intermediate gears 151 are respectively coupled to the plurality of inversion axes 155 so as to be connected to the plurality of second intermediate gears 143 and rotate integrally with the inversion axes 155. As the plurality of inversion axes 155 are radially symmetrically arranged about the main coaxial shaft 112, the plurality of first inversion intermediate gears 151 are arranged radially symmetrically about the main coaxial shaft 112. The plurality of first intermediate gears 151 are paired with the plurality of second intermediate gears 143 so that if the number of the second intermediate gears 143 is three, And the number is also set to be connected to each other (see FIG. 6).

The plurality of second inversion intermediate gears 153 are respectively coupled to the plurality of inversion axes 155 adjacent to the plurality of first inversion intermediate gears 151 to rotate integrally with the plurality of inversion axes 155. Similar to the plurality of first reverse intermediate gears 151, the plurality of second reverse intermediate gears 153 are also arranged radially symmetrically about the main shaft 112.

The driven gear 160 is disposed at the center of the plurality of second reversing intermediate gears 153 and receives the rotation of the plurality of reversing intermediate gears 153 (see FIG. 7).

The driven shaft 114 is disposed at the center of the driven gear 160 and rotates integrally with the driven gear 160 so that the rotation of the driven gear 160 is transmitted to the inversion rotation driving mechanism 110 according to the present embodiment To the output side. The main shaft 112 is fitted to the inside of the driven shaft 114 and relatively rotates in the opposite direction concentrically with respect to each other.

The first and second panels 120 and 122 are disposed on the outer sides of the main drive gear 130, the electric power unit 140, the inverter unit 150 and the driven gear 160, And supports rotation of the coaxial shaft 114, the transmission shaft 145, and the reversing shaft 155. As a result, the lengths of the respective shafts 112, 114, 145, and 155 can be reduced, and the configuration of the reverse rotation driving mechanism 110 can be made compact.

A main coaxial hole 124 in which the main coaxial shaft 112 is rotatably engaged is formed in a central region of the first panel 120 and a driven shaft 114 is rotatably mounted in a central area of the second panel 122 And a driven shaft hole 128 is formed. A plurality of shaft holes 126 are formed in the peripheral region of the first and second panels 120 and 122 so that a plurality of transmission shafts 145 and a plurality of inverting shafts 155 are rotatably coupled.

The first and second panels 120 and 122 may be connected to each other so as to entirely cover the spur gear 130, the motor unit 140, the reversing unit 150 and the driven gear 160 according to design requirements.

The flow preventing portion 170 prevents the flow generated in the combination of the main shaft 112 and the driven gear 130 and in the combined body of the driven shaft 114 and the driven gear 160. To this end, the flow prevention portion 170 includes a spacer 172 and insertion grooves 174 and 178. [

The spacer 172 has a circular ring shape and is coupled to both sides of the driven gear 130 and the driven gear 160, respectively.

 The insertion grooves 174 and 178 are formed between the first intermediate gear 141 and the second intermediate gear 143 and between the first intermediate gear 141 and the first panel 120 so that the spacer 172 is inserted. And between the first reversing intermediate gear 151 and the second reversing intermediate gear 153 and between the second reversing intermediate gear 153 and the second panel 122, respectively.

With such a configuration, the flow preventing portion 170 can maintain a constant axial gap between the driven gear 130 and the driven gear 160, A certain distance can be ensured between the loads such as the propellers 190 and 200 to be coupled.

4, the outer diameter, that is, the protruding height of the spacer 172 is shown to be larger than the outer diameter of the driven gear 130 and the driven gear 160, but this is only one example. That is, the outer diameter of the spacer 172 is set to be larger than the outer diameter of the spacer 172 in the state in which the first drive intermediate gear 141 is engaged with the first drive gear 130 and the second reverse intermediate gear 153 is engaged with the driven gear 160 172 are inserted into the insertion grooves 174, 178 are sufficient. For example, in the case of gear engagement, it is preferable that the outer diameter of the spacer 172 is substantially equal to or slightly smaller than the outer diameter of the driven gear 130 and the driven gear 160. [

The height of the projection 172 and the depth of the insertion grooves 174 and 178 are substantially equal to each other so that the combination of the main shaft 112 and the main gear 130 and the driven shaft 114 and the driven gear 160 Can be prevented from flowing radially.

The first and second intermediate gears 141 and 143 and the first and second reversing intermediate gears 151 and 153 of the reversing rotation driving mechanism 110 according to the present embodiment, , The driven gear 160 may be configured to include various known power transmission elements such as gears or friction rollers. In the case of gears, various gears such as spur gears and helical gears are applicable.

The rotational ratios of the main gear 130, the first and second intermediate gears 141 and 143, the first and second reversing intermediate gears 151 and 153 and the driven gear 160 can be 1: 1, It can be done at different ratios as needed. The first and second intermediate gears 141 and 143 and the first and second reversing intermediate gears 151 and 153 and the driven gear 160 in the case where the rotation ratio is 1: It is possible to easily realize the normal modularization of the manufacturing process. Further, the electric power unit 140 and the reversing unit 150 can be configured in the same direction and arranged in opposite directions, so that the module can be more easily implemented in the manufacturing process. The first and second intermediate gears 141 and 143 and the first and second reversing intermediate gears 151 and 153 and the driven gear 160 are all disposed in parallel with the rotation shafts 112 and 114, 145, and 155, so that it is possible to assemble easily by a simple structure.

Hereinafter, the operation of the reverse rotation drive mechanism 110 according to the present embodiment will be described with reference to Figs. 5 to 7, taking as an example the case where the power transmitting element is a gear.

5, when the main gear 130 rotates integrally with the main shaft 112 in a clockwise direction, a plurality of first intermediate gears 141 engaged with the main gear 130 are engaged with the plurality of driving shafts 145 ), Respectively, in the counterclockwise direction.

As shown in FIG. 6, as the first intermediate gear 141 rotates counterclockwise, the first intermediate gear 141 and the second intermediate gear (not shown) that rotate integrally on the transmission shaft 145 143 also rotate counterclockwise. As a result, the first reverse intermediate gear 151 engaged with the second intermediate gear 143 rotates clockwise. 6 shows an example in which three second intermediate gears 143 and three first intermediate intermediate gears 151 are engaged and rotated with each other.

7, the first reverse intermediate gear 151 and the second reverse intermediate gear 153, which rotate integrally on the reverse shaft 155, rotate as the first reverse intermediate gear 151 rotates in the clockwise direction, And the driven gear 160 engaged with the second reverse intermediate gear 153 rotates in the counterclockwise direction. As a result, the driven shaft 114, which rotates integrally with the driven gear 160, also rotates counterclockwise. That is, the main coaxial shaft 112 and the driven shaft 114 rotate in opposite directions while being fitted to each other.

5 to 7, the meshing of the primary gear 130 and the first intermediate gear 141, the meshing of the second intermediate gear 143 and the first intermediate gear 151, Since the meshing of the reverse intermediate gear 153 and the driven gear 160 is performed in a radial symmetry about the main shaft 112, mechanical stability can be ensured.

The driving unit 180 is connected to the main coaxial shaft 112 to rotate the main coaxial shaft 112. Although the motor is shown as the driving unit 180 in this embodiment, an engine may be provided instead of the motor.

The first propeller 190 is disposed between the driving unit 180 and the reverse rotation driving mechanism 110 and is coupled to the input side end of the main shaft 112.

The second propeller 200 is disposed between the driving unit 180 and the reverse rotation driving mechanism 110 and is coupled to the output side end of the driven shaft 114.

As described above, in the propeller propulsion apparatus 100 according to the embodiment of the present invention, the first propeller 190 and the second propeller 200 are disposed between the driving unit 180 and the reverse rotation driving mechanism 110 The first propeller 190 is coupled to the main shaft 112 and the second propeller 200 is coupled to the driven shaft 114. [ The shaft of the driving unit 180 is connected to the main shaft 112 of the reverse rotation driving mechanism 110 by the coupling 185.

The first propeller 190 is disposed adjacent to the driving unit 180 so that deflection of the main shaft 112 due to the own weight of the first propeller 190 is reduced. And the main coaxial shaft 112 to which the first propeller 190 is coupled can be easily aligned, thereby shortening the assembling time. In addition, when the apparatus 100 is driven, the generation of the flow of the main shaft 112 and the driven shaft 114 is reduced, so that the stability of rotation of the apparatus 100 is improved and the stability of the apparatus 100 can be improved.

Meanwhile, FIG. 8 shows a propeller propulsion device according to another embodiment of the present invention. The propeller propulsion device 100 'according to another embodiment of the present invention differs from the propeller propulsion device 100' of the first embodiment in that the main shaft 112 'is formed in the shape of a hollow shaft and the main shaft 112' The shaft of the driving unit 180 is coupled to the output side end by a known method such as key engagement or shrinkage.

The remaining components of the reverse rotation drive mechanism 110 'and the operation process thereof are the same as those of the reverse rotation drive mechanism 110 of the above-described embodiment, and the description thereof will be omitted below.

Therefore, in the propeller propulsion device 100 'according to another embodiment of the present invention, the shaft of the driving unit 180 and the main shaft 112' are not connected by coupling, The space between the driving unit 180 and the reverse rotation driving mechanism 110 'is smaller than that in the above embodiment, so that the size of the apparatus 100' becomes more compact.

As described above, according to the present invention, by arranging the propeller as the load between the driving unit and the reverse rotation driving mechanism, the interval between the driving unit and the propeller as the load becomes small, so that the assembling work is easy and the assembling time is shortened, And the size of the apparatus can be reduced.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100, 100 ': propeller propulsion device 110, 110': reverse rotation drive mechanism
112, 112 ': main coaxial shaft 114:
130: main gear 141: first intermediate gear
143: first intermediate gear 145: transmission shaft
151: first reverse intermediate gear 153: second reverse intermediate gear
155: reverse shaft 160: driven gear
170: flow prevention part 180: driving part
190: first propeller 200: second propeller

Claims (4)

A driven gear coupled to the main shaft, a driven gear coupled to the driven shaft, and a driven gear coupled to the driven shaft in a reverse direction An intermediate rotation driving mechanism having a plurality of intermediate gears for rotating the intermediate gears;
A driving unit connected to the main coaxial shaft to rotate the main coaxial shaft;
A first propeller disposed between the driving unit and the reverse rotation driving mechanism and coupled to the main shaft;
And a second propeller disposed between the driving unit and the reverse rotation driving mechanism and coupled to the driven shaft. The method according to claim 1,
The plurality of intermediate gears includes a first transmission intermediate gear which receives the rotation of the main gear, a second transmission intermediate gear which is provided adjacent to the first transmission intermediate gear and rotates integrally with the first transmission intermediate gear, A second reverse intermediate gear which is provided adjacent to the first reverse intermediate gear and rotates integrally with the first reverse intermediate gear and which rotates the driven gear, Wherein the propeller propulsion device comprises a propeller propulsion device. 3. The method of claim 2,
A transmission shaft to which the first electric intermediate gear and the second electric intermediate gear are coupled,
Further comprising an inverting axis to which the first inverted intermediate gear and the second inverted intermediate gear are coupled. The method according to claim 1,
And a flow preventing portion for preventing a flow of the combined body of the driven shaft and the driven gear and the combined body of the main coaxial shaft and the driven gear.
KR1020130029685A 2013-03-20 2013-03-20 Apparatus for propelling a propeller KR20140115073A (en)

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KR1020130029685A KR20140115073A (en) 2013-03-20 2013-03-20 Apparatus for propelling a propeller

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170067600A (en) * 2015-12-08 2017-06-16 케이씨모터(주) Dron having Turn the deceleration to have an antiwar drive
KR20170120263A (en) * 2016-04-21 2017-10-31 케이씨모터(주) Vessel propulsion device having Turn the deceleration to have an antiwar drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170067600A (en) * 2015-12-08 2017-06-16 케이씨모터(주) Dron having Turn the deceleration to have an antiwar drive
KR20170120263A (en) * 2016-04-21 2017-10-31 케이씨모터(주) Vessel propulsion device having Turn the deceleration to have an antiwar drive

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