WO2011145762A1 - Counter/contra-rotating device for fluid machinery - Google Patents

Counter/contra-rotating device for fluid machinery Download PDF

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Publication number
WO2011145762A1
WO2011145762A1 PCT/KR2010/003180 KR2010003180W WO2011145762A1 WO 2011145762 A1 WO2011145762 A1 WO 2011145762A1 KR 2010003180 W KR2010003180 W KR 2010003180W WO 2011145762 A1 WO2011145762 A1 WO 2011145762A1
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WO
WIPO (PCT)
Prior art keywords
rotor
inversion
transmission
rotors
fluid
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Application number
PCT/KR2010/003180
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French (fr)
Korean (ko)
Inventor
정창록
Original Assignee
(주)이지펙스
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Publication date
Application filed by (주)이지펙스 filed Critical (주)이지펙스
Priority to PCT/KR2010/003180 priority Critical patent/WO2011145762A1/en
Publication of WO2011145762A1 publication Critical patent/WO2011145762A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
    • F01D1/26—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to a reverse rotation device for a fluid machine, and more particularly, to a reverse rotation device for a fluid machine for converting the kinetic energy of the fluid into mechanical energy.
  • Fluid machines for converting the kinetic energy of the fluid into mechanical energy include steam turbines, gas turbines, jet engines, wind turbines.
  • a turbine is a device that obtains a rotational force by the impulse or reaction force by using a flow of fluid, such as steam, gas, is a steam turbine using steam, gas is called a gas turbine.
  • a plurality of blade-mounted rotors and stators which are rotated by a flow of a fluid such as steam or combustion gas are alternately arranged in multiple stages to convert the kinetic energy of the fluid into mechanical energy.
  • the rotor blades of each rotor stage rotate in the same direction. Accordingly, fluid such as steam or combustion gas introduced from the input end of the rotor rotates each blade mounted in the rotor of the multi-stage while converting energy.
  • the stator disposed at each stage acts as a resistance to the flow of the fluid, causing a pressure loss, and also a pressure loss due to cavitation occurs in the blades of the rotor rotating in the same direction, resulting in energy efficiency. There is a problem of deterioration.
  • the stator since the stator must be arranged in each stage, there is a problem that the turbine becomes large and the structure becomes complicated.
  • the present invention is to improve the problems of the conventional fluid machine, such as a turbine, by introducing the concept of Counter / Contra Rotating Propeller (CRP), it is configured to be mounted to each wing that rotates in opposite directions corresponding to the flow of the fluid, respectively
  • An object of the present invention is to provide a reverse rotation apparatus for a fluid machine that alternately arranges a first rotor and a second rotor on a coaxial axis and converts the kinetic energy of the fluid flowing through the blade into mechanical energy.
  • an internal member is formed on the inner peripheral surface, in the first direction corresponding to the flow of the fluid on the outer peripheral surface
  • At least one first rotor configured to mount a plurality of rotating vanes
  • An inner member is formed on an inner circumferential surface, and a plurality of vanes rotating in a second direction opposite to the first direction is mounted on the outer circumferential surface, and at least alternately arranged coaxially with the first rotor One second rotor;
  • a plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor;
  • a plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor;
  • the inversion between the electric unit and the inversion unit may occur between the first rotor and the second rotor. Or may occur at the initial input and together at the initial and final output.
  • Each of the plurality of transmission units may include a first transmission member that is internally rotated by the internal member of the first rotor and a second transmission member which is coaxially disposed with the first transmission member and integrally rotates with the first transmission member.
  • the rotation ratio between the second transmission member and the first inversion member may be 1: 1.
  • the reverse rotation device may further include a flow preventing unit for preventing the flow of the first rotor and the second rotor.
  • the output unit includes a driven member externally rotating with the second inversion member engaged with the first transmission member or the internal member of the second rotor, which is engaged with the internal member of the first rotor disposed at the final end, and the driven member. It may include an output shaft coupled to the member.
  • the reverse rotation apparatus includes the plurality of first transmission members and the plurality of second meshing members engaged with the first rotor and the second rotor, respectively, except for the first rotor or the second rotor disposed at a final stage. It may further include an auxiliary member disposed in the center of the inversion member and externally rotated with the first transmission member and the second inversion member.
  • the reverse rotation device for a fluid machine alternately arranges the first rotor and the second rotor mounted on the coaxial with the rotor rotating in opposite directions corresponding to the flow of the fluid, respectively. It is possible to transmit the rotational force of the first rotor and the second rotor through one output shaft through a gear train or frictional train of simple structure. Accordingly, the structure of the reverse rotation device can be compact, and the size can be reduced.
  • the CRP structure can lower the rotational noise of the blade and increase the energy transfer efficiency.
  • Reverse rotation device for a fluid machine can be utilized in a variety of fluid machines, such as gas turbines, steam turbines, jet engines, wind turbines.
  • FIG. 1 is a perspective view showing a reverse rotation device according to a first embodiment of the present invention.
  • Figure 2 is a longitudinal sectional view of the reverse rotation device of Figure 1;
  • Figure 3 is a perspective view showing the arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.
  • FIG. 4 is a view showing an engagement state of the first rotor and the first transmission member of the reverse rotation device of FIG.
  • FIG. 5 is a view illustrating an engaged state of a second rotor and a second inverting member of the reverse rotation device of FIG. 1.
  • FIG. 6 is a view illustrating an engaged state of a second electric member and a first inversion member of the reverse rotation device of FIG. 1.
  • FIG. 7 is a view illustrating an engaged state of a first rotor, a first transmission member, and an output unit of the reverse rotation device of FIG. 1.
  • FIG. 8 is a perspective view showing a reverse rotation device according to a second embodiment of the present invention.
  • Figure 9 is a longitudinal cross-sectional view of the reverse rotation device of Figure 8.
  • FIG. 10 is a perspective view showing an arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.
  • FIG. 11 is a view illustrating an engaged state of a second rotor, a second reverse member, and an output unit of the reverse rotation device of FIG. 8;
  • 1 to 7 show a reverse rotation apparatus for a fluid machine according to a first embodiment of the present invention.
  • the reverse rotation apparatus includes a first rotor 11a, 11b, 11c, a second rotor 21a, 21b, a plurality of electric units 31, and a plurality of rotors. Inversion unit 41 and output unit 51 are included.
  • the reverse rotation apparatus according to the present embodiment may further include a flow preventing part 71.
  • the first rotors 11a, 11b, and 11c have a ring shape, and a first internal member 13 is formed on an inner circumferential surface thereof and rotates in a first direction corresponding to the flow of a fluid on the outer circumferential surface thereof.
  • a plurality of first blades 15 are mounted.
  • the second rotors 21a and 21b have a ring shape, and a second inner member 23 is formed on an inner circumferential surface thereof, and a plurality of second wings that rotate in response to the flow of a fluid on the outer circumferential surface thereof. (25) is attached.
  • Each of the second blades 25 of the second rotors 21a and 21b rotates in a second direction opposite to the first direction that is the rotational direction of the first blades 15 of the first rotors 11a, 11b and 11c. To this end, it may be mounted opposite to the first blades 15 of the first rotors 11a, 11b, and 11c.
  • the first rotors 11a, 11b, 11c and the second rotors 21a, 21b are alternately arranged at regular intervals on the coaxial axis.
  • the first rotors 11a, 11b, 11c and the second rotors 21a, 21b may have the same outer diameter and inner diameter, and each of the first and second internal members 13, 23 may also have the same dimensions. have.
  • the process can be simplified and the module can be easily modularized.
  • the outer and inner diameters of the first rotors 11a, 11b, and 11c and the second rotors 21a and 21b, and the dimensions of the first and second internal members 13 and 23 may be designed differently. have.
  • the plurality of electric units 31 are radially disposed about the axes of the first rotors 11a, 11b, and 11c, and transmit rotation from the first internal member 13 of the first rotors 11a, 11b, and 11c. Receive.
  • three electric units 31 are arranged radially about the axis of the first rotors 11a, 11b, 11c.
  • Each electric unit 31 is coaxially with the 1st transmission member 33 and the 1st transmission member 33 which internally rotate to the 1st internal member 13 of the 1st rotors 11a, 11b, 11c.
  • the second transmission member 35 is disposed to rotate integrally with the first transmission member 33.
  • the first transmission member 33 and the second transmission member 35 are coupled by the transmission shaft 37 to rotate integrally.
  • the first transmission member 33 and the second transmission member 35 are manufactured separately from the transmission shaft 37, it is preferable that the first transmission member 33 and the second transmission member 35 are coupled to the transmission shaft 37 by a known method such as key coupling or shrinkage.
  • the transmission shaft 37 may be formed integrally.
  • the transmission shaft 37 of each transmission unit 31 is arrange
  • the plurality of inversion units 41 are disposed radially around the axes of the second rotors 21a and 21b between the plurality of electric units 31 arranged radially, thereby inverting the rotation of each electric unit 31. And transmits rotation to the second internal member 23 of the second rotors 21a and 21b. Since the inversion unit 41 is paired with the electric unit 31, for example, if the number of the electric unit 31 is three as in this embodiment, the number of the inversion unit 41 is also set to be connected to each other.
  • Each inversion unit 41 is arranged coaxially with the first inversion member 43 and the first inversion member 43 for inverting the rotation of the second transmission member 35.
  • a second inversion member 45 which rotates integrally and inwardly rotates the second internal member 23 of the second rotors 21a and 21b.
  • the first inversion member 43 rotates externally with the second transmission member 35 to reverse the rotation of the second transmission member 35.
  • a pair of first inverting members 43 are disposed on both sides of the second inverting member 45 in the inward rotation of the second inverting member 23 of the second rotors 21a and 21b. Are arranged respectively.
  • first inversion members 43 and the second inversion members 45 are coupled by the inversion shaft 47 to rotate integrally.
  • the first inversion member 43 and the second inversion member 45 may be manufactured separately from the inversion shaft 47 so as to be coupled to the inversion shaft 47 by a known method such as key coupling or shrinkage. In accordance with this, it may be integrally formed with the inversion shaft 47.
  • the inversion shaft 47 of each inversion unit 41 is arrange
  • the rotation ratio between the first inversion member 43 and the second transmission member 35 may be 1: 1, and may be in another ratio as necessary.
  • the rotation ratio is 1: 1, the configuration of the first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 can all be the same, thereby simplifying the process and Modularization can be easily implemented.
  • first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 all rotate on parallel axes 37 and 47, the assembly can be easily performed with a simple configuration.
  • the output unit 51 outputs rotational forces of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b.
  • the output unit 51 is disposed at the center of the plurality of electric units 31 engaged with the first internal member 13 of the first rotor 11c disposed at the last end to rotate the plurality of electric units 31. It includes a driven member 53 and an output shaft 55 coupled to the driven member 53.
  • the driven member 53 is disposed at the center of the plurality of electric units 31, that is, on the central axis line of the first rotor 11c of the final stage, and meshes with the first transmission member 33 of the final stage to rotate.
  • the driven member 53 receives not only the rotational force of the first rotor 11c of the last end but also the rotational force of the first rotors 11a and 11b and the second rotors 21a and 21b disposed at the front end thereof.
  • the output shaft 55 is disposed coaxially with the first rotors 11a, 11b, 11c, and both ends are rotatably supported by the housing 61.
  • the output shaft 55 outputs the rotational force of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b transmitted through the driven member 53.
  • the first and second internal members 13 and 23, the first and second transmission members 33 and 35, the first and second inverting members 43 and 45, and the driven member 53 All may be composed of gears or frictional differences. That is, these components may constitute a gear train as a whole or a friction heat shield.
  • the output unit 51 includes a driven member 53 and an output shaft 55 engaged with the first internal member 13 of the first rotor 11c of the final stage. It is not limited.
  • the output unit 51 may utilize the first rotor 11c of the final stage as a driven member, and output a rotational force by coupling an output bracket (not shown) to the driven member.
  • first rotors 11a, 11b, 11c and two second rotors 12a, 12b are alternately arranged in five stages, that is, odd stages, and thus the first rotor ( 11c) is disposed at the final stage.
  • the reverse rotation device according to the present invention is not limited thereto, and may include at least one first rotor and at least one second rotor.
  • the same number of first rotors and second rotors may be arranged in even stages, in which case the second rotor is arranged in the final stage (see, for example, the second embodiment described later).
  • the housing 61 supports the first rotor 11a disposed at the input end and the first rotor 11c disposed at the final end, and the first rotor 11b, the second rotors 21a, 21b, and a plurality of central rotors. Is provided to surround the electric unit 31, the plurality of inversion unit 41, and the driven member 53.
  • the housing 61 is rotatably supported by the transmission shaft 37, the inversion shaft 47, and the output shaft 55.
  • the flow preventing part 71 prevents the flow of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b.
  • the flow preventing part 71 includes the first rotors 11a, 11b, and 11c and the first inverting member 43 adjacent to each other, and the second rotors 21a and 21b and the second driving member adjacent to each other. And a flange disposed between 35.
  • the flange has a ring shape, the side of the first inverting member 43 adjacent to the first rotors 11a, 11b, 11c and the side of the second transmission member 35 adjacent to the second rotors 21a, 21b. It is preferred that each is bonded to, but is not limited thereto. Accordingly, the flow preventing part 71 may maintain a constant axial gap between the first rotors 11a, 11b and 11c and the second rotors 21a and 21b.
  • the reverse rotation apparatus includes a plurality of first transmission members 33 that are indirectly rotated with the first internal members 13 of the first rotors 11a, 11b, and 11c, respectively. It may further include a first auxiliary member 81 is disposed in the center of the first auxiliary member 81 to rotate in engagement with the plurality of first transmission member 33, the second internal member 23 of each of the second rotor (21a, 21b) similarly ) And a second auxiliary member 82 disposed in the center of the plurality of second inverting members 45 to be inwardly rotated to be engaged with the plurality of second inverting members 45 to rotate.
  • the first and second auxiliary members 81 and 82 are connected by the first internal member 13 and the first transmission member 33 and the second internal member 23 and the second inversion member 45. By compensating for the radial load generated, it is possible to increase the mechanical stability of the reverse rotation device for fluid machines. In particular, when all members are made of a friction difference, the first and second auxiliary members 81 and 82 may also serve to reduce frictional losses.
  • the first blades 15 of the first rotors 11a, 11b, and 11c are rotated in a first direction, for example counterclockwise, by the flow of the fluid, so that the first rotors 11a.
  • the rotational force is generated in 11b and 11c, and the second blades 25 of the second rotors 21a and 21b rotate in a second direction opposite to the first direction, for example, in a clockwise direction, so that the second rotors 21a and 21b are rotated.
  • the first second transmission member 35 that is integrally rotated on the first first transmission member 33 and the transmission shaft 37 is also counterclockwise.
  • the rotational force of the first first rotor 11a is transmitted while rotating in the direction.
  • the first first inversion member 43 engaged with the first second transmission member 35 rotates in a clockwise direction and transmits the rotational force of the first first rotor 11a.
  • Receive. 6 illustrates an example in which three second driving members 35 and three first inverting members 43 mesh with each other to rotate. Engagement of each of the second transmission members 35 and each of the first inversion members 43 is made radially symmetric about the axes of the first rotors 11a, 11b, and 11c, thereby ensuring mechanical stability. .
  • the first second inversion that is integrally rotated on the first first inversion member 43 and the inversion shaft 47.
  • the member 45 also rotates in a clockwise direction and receives the rotational force of the first first rotor 11a through the first first inversion member 43.
  • the first second inversion member 45 is inscribed to the second internal member 23 of the first second rotor 21a, the clockwise rotation of the first second rotor 21a according to the flow of the fluid is performed. The rotational force is also transmitted. That is, the first second inversion member 45 receives the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a together.
  • the second first inversion member 43 disposed downstream of the first second inversion member 45 and the second agent Rotation reversal occurs by the engagement of the first internal member 13 of the first rotor 11b and the second second transmission member 35 disposed upstream of the second first transmission member 33 which is inscribed in rotation.
  • the second first inversion member 43 rotates clockwise as the first second inversion member 45 rotates clockwise. Accordingly, as shown in FIG. 6, the second second transmission member 35 engaged with the second first inversion member 43 rotates in a counterclockwise direction, and the first first rotor 11a and the first The rotational force of the second second rotor 21a is received together.
  • the second second transmission member 35 rotates in the counterclockwise direction, the inward rotation of the first internal member 13 of the second first rotor 11b downstream of the second second transmission member 35.
  • the second first transmission member 33 also rotates counterclockwise to receive the rotational force of the first first rotor 11a and the first second rotor 21a together.
  • the second first transmission member 33 is also received a rotational force by the counterclockwise rotation of the second first rotor (11b) according to the flow of the fluid. That is, the second first transmission member 33 includes the second first transmission member together with the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a transmitted from the second transmission member 35 upstream. Receives the rotational force of the rotor 11b and rotates counterclockwise.
  • the rotational force of all the rotors 11a, 11b, 21a, 21b upstream is indirectly rotated by the first internal member 13 of the first rotor 11c located at the final end. It is transmitted to the transmission member (33).
  • the final stage first transmission member 33 receives the rotational force of the final stage first rotor 11c, the final stage first transmission member 33 includes all the rotors 11a, 11b, 11c, 21a, 21b. The rotational force of) is transmitted together.
  • the driven members 53 externally rotating with the plurality of first transmission members 33 rotate clockwise.
  • the output shaft 55 also rotates clockwise. Accordingly, the rotational forces of all the rotors 11a, 11b, 11c, 21a, 21b are transmitted to the output shaft 55 via the driven member 53.
  • the first rotor (15) and the second blade (25) which are respectively rotated in the opposite direction in response to the flow of the fluid ( 11a, 11b, and 11c and the second rotors 21a and 21b are alternately arranged coaxially to convert the kinetic energy of the fluid input through the first wing 15 and the second wing 25 into mechanical energy. Can be output.
  • the CRP principle it is possible to lower the noise due to the hydrodynamic interaction of the first wing 15 and the second wing 25, it is possible to reduce the energy loss.
  • a simple combination of a modular gear train or frictional heat and a single output shaft 55 can transmit all rotational forces, a compact structure can achieve high energy transfer efficiency.
  • the reverse rotation device according to the present embodiment does not have a means for reversing rotation between the plurality of first rotors 11a and 11b and the plurality of second rotors 21a and 21b. It is characteristic. That is, the set of the second transmission member 35 and the first inversion member 43 for rotation reversal is disposed only upstream of the input end of the first rotors 11a and 11b. Accordingly, the arrangement of the flow preventing part 71 also differs when compared with the first embodiment.
  • the flange disposed between each of the first and second internal members 13 and 23 also serves as a spacer.
  • the second transmission member 35 upstream thereof also rotates in the counterclockwise direction and receives the rotational force of the first first rotor 11a. Accordingly, the first inversion member 43 engaged with the second transmission member 35 receives the rotational force of the first first rotor 11a while rotating clockwise.
  • the first second inversion member 45 As the first inversion member 43 rotates in the clockwise direction, the first second inversion member 45 also rotates in the clockwise direction and receives the rotational force of the first first rotor 11a. At this time, since the first second inverting member 45 is inscribed in the second internal member 23 of the first second rotor 21a, the clockwise direction of the first second rotor 21a according to the flow of the fluid. The rotational force by rotation is also transmitted.
  • the second first transmission member 33 receives the counterclockwise rotational force of the second first rotor 11b, and the second (final end) second reverse member 45 is second (final end). The clockwise rotational force of the second rotor 21b is received.
  • the first inverting member 43 receives the rotational force of the first rotors 11a and 11b through engagement with the second driving member 35. In this way, the rotational force of the first rotors 11a and 11b and the rotational force of the second rotors 21a and 21b are both transmitted to the second inversion member 45 at the final stage, and the driven member engaged with the second inversion member 45. Output to the output shaft 55 via 53.
  • the second motor member 35 and the first inverting member 43 for rotation reversal are disposed at the input terminal, they may be disposed at the final stage as required by design, All may be arranged at the stage. When arranged at both the input end and the end, there is an advantage that the reverse load is distributed.
  • Reverse rotation device for a fluid machine can be utilized in a variety of fluid machines, such as gas turbines, steam turbines, jet engines, wind turbines.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

The present invention relates to a counter/contra-rotating device for fluid machinery, which converts energy from the movement of fluid into mechanical energy. The counter/contra-rotating device for fluid machinery comprises: at least one first rotor having an inner contacting member formed on an inner periphery thereof, and a plurality of wings formed on an outer periphery thereof that rotate in a first direction in accordance with the flow of fluid; at least one second rotor having an inner contacting member formed on an inner periphery thereof, having a plurality of wings installed on an outer periphery thereof that rotate in a second direction opposite the first direction in accordance with the flow of fluid, and arranged coaxially and alternately with the first rotor; a plurality of drive units radially arranged about an axis of the first rotor, for receiving rotation from the inner contacting member of the first rotor; a plurality of reversing units radially arranged about an axis of the second rotor between the plurality of drive units, for reversing the rotation of the plurality of drive units and relaying the rotation to the inner contacting member of the second rotor; and an output unit for outputting the rotational force of the first rotor and second rotor.

Description

유체기계용 반전회전장치Reverse rotating device for fluid machine
본 발명은 유체기계용 반전회전장치에 관한 것으로서, 보다 상세하게는, 유체의 운동에너지를 기계적 에너지로 변환시키는 유체기계용 반전회전장치에 관한 것이다.The present invention relates to a reverse rotation device for a fluid machine, and more particularly, to a reverse rotation device for a fluid machine for converting the kinetic energy of the fluid into mechanical energy.
유체의 운동에너지를 기계적 에너지로 변환시키는 유체기계로는 증기터빈, 가스터빈, 제트엔진, 풍력발전장치 등을 들 수 있다. Fluid machines for converting the kinetic energy of the fluid into mechanical energy include steam turbines, gas turbines, jet engines, wind turbines.
일반적으로 터빈은 증기, 가스와 같은 유체의 흐름을 이용하여 충동력 또는 반동력으로 회전력을 얻는 장치로서, 증기를 이용하면 증기터빈이고, 가스를 이용하면 가스터빈이라 한다.In general, a turbine is a device that obtains a rotational force by the impulse or reaction force by using a flow of fluid, such as steam, gas, is a steam turbine using steam, gas is called a gas turbine.
이러한 터빈은 유체의 운동에너지를 기계적 에너지로 변환시키기 위해, 증기 또는 연소가스와 같은 유체의 유동에 의해 회전하는 복수의 날개가 장착된 로터와 스테이터가 교호적으로 다단으로 배치되어 있다. 각 로터 단의 날개는 동일 방향으로 회전한다. 이에, 로터의 입력단으로부터 유입된 증기 또는 연소가스와 같은 유체는 다단의 로터에 장착된 각 날개를 회전시키며 통과하면서 에너지 변환이 이루어진다.In such a turbine, a plurality of blade-mounted rotors and stators which are rotated by a flow of a fluid such as steam or combustion gas are alternately arranged in multiple stages to convert the kinetic energy of the fluid into mechanical energy. The rotor blades of each rotor stage rotate in the same direction. Accordingly, fluid such as steam or combustion gas introduced from the input end of the rotor rotates each blade mounted in the rotor of the multi-stage while converting energy.
그런데, 종래의 터빈에서는 각 단마다 배치된 스테이터가 유체의 흐름에 대한 저항으로 작용하여 압력손실을 야기하고, 또한 동일한 방향으로 회전하는 로터의 날개에서도 캐비테이션에 의한 압력손실이 발생하여, 에너지 효율이 저하된다는 문제점이 있다. 또한, 스테이터가 각 단마다 배치되어야 하므로 터빈이 대형화하고 구조가 복잡해진다는 문제점이 있다. However, in the conventional turbine, the stator disposed at each stage acts as a resistance to the flow of the fluid, causing a pressure loss, and also a pressure loss due to cavitation occurs in the blades of the rotor rotating in the same direction, resulting in energy efficiency. There is a problem of deterioration. In addition, since the stator must be arranged in each stage, there is a problem that the turbine becomes large and the structure becomes complicated.
본 발명은 터빈과 같은 종래 유체기계의 문제점을 개선하기 위한 것으로서, CRP(Counter/Contra Rotating Propeller)의 개념을 도입하여, 유체의 유동에 대응하여 상호 반대방향으로 회전하는 날개가 각각 장착되도록 구성된 제1로터 및 제2로터를 동축 상에 교호적으로 배치하여, 날개를 통해 유입되는 유체의 운동에너지를 기계적 에너지로 변환시키는 유체기계용 반전회전장치를 제공하는 것을 목적으로 한다. The present invention is to improve the problems of the conventional fluid machine, such as a turbine, by introducing the concept of Counter / Contra Rotating Propeller (CRP), it is configured to be mounted to each wing that rotates in opposite directions corresponding to the flow of the fluid, respectively An object of the present invention is to provide a reverse rotation apparatus for a fluid machine that alternately arranges a first rotor and a second rotor on a coaxial axis and converts the kinetic energy of the fluid flowing through the blade into mechanical energy.
상기 목적을 달성하기 위하여, 본 발명에 따른 유체의 운동에너지를 기계적 에너지로 변환시키는 유체기계용 반전회전장치에 있어서, 내주면에 내접부재가 형성되고, 외주면에 유체의 유동에 대응하여 제1방향으로 회전하는 복수의 날개가 장착되도록 구성된 적어도 하나의 제1로터와; 내주면에 내접부재가 형성되고, 외주면에 유체의 유동에 대응하여 상기 제1방향과 상반된 제2방향으로 회전하는 복수의 날개가 장착되도록 구성되고, 상기 제1로터와 동축 상에서 교호적으로 배치된 적어도 하나의 제2로터와; 상기 제1로터의 축선을 중심으로 방사상으로 배치되어, 상기 제1로터의 내접부재로부터 회전을 전달받는 복수의 전동유니트와; 상기 복수의 전동유니트의 사이에서 상기 제2로터의 축선을 중심으로 방사상으로 배치되어, 상기 복수의 전동유니트의 회전을 반전시키며, 상기 제2로터의 내접부재에 회전을 전달하는 복수의 반전유니트와; 상기 제1로터 및 상기 제2로터의 회전력을 출력하는 출력유니트를 포함하는 것을 특징으로 한다. In order to achieve the above object, in the reverse rotation apparatus for a fluid machine for converting the kinetic energy of the fluid according to the present invention into mechanical energy, an internal member is formed on the inner peripheral surface, in the first direction corresponding to the flow of the fluid on the outer peripheral surface At least one first rotor configured to mount a plurality of rotating vanes; An inner member is formed on an inner circumferential surface, and a plurality of vanes rotating in a second direction opposite to the first direction is mounted on the outer circumferential surface, and at least alternately arranged coaxially with the first rotor One second rotor; A plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor; A plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor; ; And an output unit for outputting rotational forces of the first rotor and the second rotor.
상기 전동유니트와 상기 반전유니트 사이의 반전은 상기 제1로터 및 상기 제2로터 사이에서 일어날 수 있다. 또는 최초 입력단에서 일어날 수 있고, 최초 입력단 및 최종 출력부에서 함께 일어날 수도 있다. The inversion between the electric unit and the inversion unit may occur between the first rotor and the second rotor. Or may occur at the initial input and together at the initial and final output.
상기 복수의 전동유니트 각각은, 상기 제1로터의 내접부재에 내접 회전하는 제1전동부재와, 상기 제1전동부재와 동축 상에 배치되어 상기 제1전동부재와 일체로 회전하는 제2전동부재를 포함하고, 상기 복수의 반전유니트 각각은, 상기 제2전동부재의 회전을 반전시키는 제1반전부재와, 상기 제1반전부재와 동축 상에 배치되고 상기 제1반전부재와 일체로 회전하며 상기 제2로터의 내접부재에 내접 회전하는 제2반전부재를 포함할 수 있다. Each of the plurality of transmission units may include a first transmission member that is internally rotated by the internal member of the first rotor and a second transmission member which is coaxially disposed with the first transmission member and integrally rotates with the first transmission member. Each of the plurality of inversion units, the first inversion member for inverting the rotation of the second transmission member, disposed coaxially with the first inversion member and rotated integrally with the first inversion member It may include a second inversion member in the internal rotation of the internal member of the second rotor.
상기 제2전동부재와 상기 제1반전부재 사이의 회전비는 1:1일 수 있다. The rotation ratio between the second transmission member and the first inversion member may be 1: 1.
본 발명에 따른 반전회전장치는 상기 제1로터와 상기 제2로터의 유동을 방지하는 유동방지부를 더 포함할 수 있다. The reverse rotation device according to the present invention may further include a flow preventing unit for preventing the flow of the first rotor and the second rotor.
상기 출력유니트는 최종단에 배치된 상기 제1로터의 내접부재와 맞물리는 상기 제1전동부재 또는 상기 제2로터의 내접부재와 맞물리는 상기 제2반전부재와 외접 회전하는 종동부재와, 상기 종동부재에 결합된 출력축을 포함할 수 있다. The output unit includes a driven member externally rotating with the second inversion member engaged with the first transmission member or the internal member of the second rotor, which is engaged with the internal member of the first rotor disposed at the final end, and the driven member. It may include an output shaft coupled to the member.
본 발명에 따른 반전회전장치는 최종단에 배치된 상기 제1로터 또는 상기 제2로터를 제외한 상기 제1로터 및 상기 제2로터와 각각 맞물리는 상기 복수의 제1전동부재 및 상기 복수의 제2반전부재의 중앙에 배치되어 상기 제1전동부재 및 상기 제2반전부재와 외접 회전하는 보조부재를 더 포함할 수 있다. The reverse rotation apparatus according to the present invention includes the plurality of first transmission members and the plurality of second meshing members engaged with the first rotor and the second rotor, respectively, except for the first rotor or the second rotor disposed at a final stage. It may further include an auxiliary member disposed in the center of the inversion member and externally rotated with the first transmission member and the second inversion member.
상기한 구성에 의하여, 본 발명에 따른 유체기계용 반전회전장치는 유체의 유동에 대응하여 상호 반대방향으로 회전하는 날개가 각각 장착된 제1로터 및 제2로터를 동축 상에 교호적으로 배치하고, 간단한 구조의 기어열이나 마찰차열을 통해 제1로터 및 제2로터의 회전력을 하나의 출력축을 통해 전달할 수 있다. 이에 따라, 반전회전장치의 구조가 콤팩트해지고, 크기가 작아질 수 있다. According to the above configuration, the reverse rotation device for a fluid machine according to the present invention alternately arranges the first rotor and the second rotor mounted on the coaxial with the rotor rotating in opposite directions corresponding to the flow of the fluid, respectively. It is possible to transmit the rotational force of the first rotor and the second rotor through one output shaft through a gear train or frictional train of simple structure. Accordingly, the structure of the reverse rotation device can be compact, and the size can be reduced.
또한, CRP 구조를 통해 날개의 회전 소음을 낮추고 에너지 전달 효율을 높일 수 있다.In addition, the CRP structure can lower the rotational noise of the blade and increase the energy transfer efficiency.
또한, 기어열 또는 마찰차열을 구성하는 각각의 기어들 또는 마찰차들을 동일한 구성을 갖도록 함으로써, 공정의 단순화 및 부품의 모듈화를 용이하게 구현할 수 있다.In addition, by having each gear or friction difference constituting the gear train or frictional heat having the same configuration, it is possible to easily simplify the process and modularization of the parts.
본 발명에 따른 유체기계용 반전회전장치는 가스터빈, 증기터빈, 제트엔진, 풍력발전장치 등 다양한 유체기계에 활용될 수 있다. Reverse rotation device for a fluid machine according to the present invention can be utilized in a variety of fluid machines, such as gas turbines, steam turbines, jet engines, wind turbines.
도 1은 본 발명의 제1실시예에 따른 반전회전장치를 나타낸 사시도.1 is a perspective view showing a reverse rotation device according to a first embodiment of the present invention.
도 2는 도 1 반전회전장치의 종단면도.Figure 2 is a longitudinal sectional view of the reverse rotation device of Figure 1;
도 3은 도 1 반전회전장치의 전동유니트와 반전유니트의 배열상태를 도시한 사시도.Figure 3 is a perspective view showing the arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.
도 4는 도 1 반전회전장치의 제1로터와 제1전동부재의 맞물림 상태를 도시한 도면.4 is a view showing an engagement state of the first rotor and the first transmission member of the reverse rotation device of FIG.
도 5는 도 1 반전회전장치의 제2로터와 제2반전부재의 맞물림 상태를 도시한 도면.FIG. 5 is a view illustrating an engaged state of a second rotor and a second inverting member of the reverse rotation device of FIG. 1.
도 6은 도 1 반전회전장치의 제2전동부재와 제1반전부재의 맞물림 상태를 도시한 도면.FIG. 6 is a view illustrating an engaged state of a second electric member and a first inversion member of the reverse rotation device of FIG. 1.
도 7은 도 1 반전회전장치의 제1로터와 제1전동부재와 출력유니트의 맞물림 상태를 도시한 도면.FIG. 7 is a view illustrating an engaged state of a first rotor, a first transmission member, and an output unit of the reverse rotation device of FIG. 1.
도 8은 본 발명의 제2실시예에 따른 반전회전장치를 나타낸 사시도.8 is a perspective view showing a reverse rotation device according to a second embodiment of the present invention.
도 9는 도 8 반전회전장치의 종단면도.Figure 9 is a longitudinal cross-sectional view of the reverse rotation device of Figure 8;
도 10은 도 8 반전회전장치의 전동유니트와 반전유니트의 배열상태를 도시한 사시도.10 is a perspective view showing an arrangement of the electric unit and the reverse unit of the reverse rotation device of FIG.
도 11은 도 8 반전회전장치의 제2로터와 제2반전부재와 출력유니트의 맞물림 상태를 도시한 도면.FIG. 11 is a view illustrating an engaged state of a second rotor, a second reverse member, and an output unit of the reverse rotation device of FIG. 8; FIG.
이하, 본 발명의 예시적인 실시예들에 따른 유체기계용 반전회전장치를 첨부된 도면을 참조하여 설명한다. 서로 다른 실시예들을 설명할 때 동일하거나 유사한 구성요소들에는 동일한 참조번호가 부여되었으며, 필요에 따라 반복 설명을 생략할 수 있다.Hereinafter, a reverse rotation apparatus for a fluid machine according to exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In describing the different embodiments, the same reference numerals are given to the same or similar components, and the repeated description may be omitted as necessary.
도 1 내지 도 7은 본 발명의 제1실시예에 따른 유체기계용 반전회전장치를 도시한 것이다. 1 to 7 show a reverse rotation apparatus for a fluid machine according to a first embodiment of the present invention.
도 1 내지 도 3을 참조하면, 본 실시예에 따른 반전회전장치는 제1로터(11a, 11b, 11c)와, 제2로터(21a, 21b)와, 복수의 전동유니트(31)와, 복수의 반전유니트(41)와, 출력유니트(51)를 포함한다. 본 실시예에 따른 반전회전장치는 유동방지부(71)를 더 포함할 수 있다. 1 to 3, the reverse rotation apparatus according to the present embodiment includes a first rotor 11a, 11b, 11c, a second rotor 21a, 21b, a plurality of electric units 31, and a plurality of rotors. Inversion unit 41 and output unit 51 are included. The reverse rotation apparatus according to the present embodiment may further include a flow preventing part 71.
도 4에 도시된 바와 같이, 제1로터(11a, 11b, 11c)는 링 형상을 가지며, 내주면에 제1내접부재(13)가 형성되고, 외주면에 유체의 유동에 대응하여 제1방향으로 회전하는 복수의 제1날개(15)가 장착되어 있다.As shown in FIG. 4, the first rotors 11a, 11b, and 11c have a ring shape, and a first internal member 13 is formed on an inner circumferential surface thereof and rotates in a first direction corresponding to the flow of a fluid on the outer circumferential surface thereof. A plurality of first blades 15 are mounted.
도 5에 도시된 바와 같이, 제2로터(21a, 21b)는 링 형상을 가지며, 내주면에 제2내접부재(23)가 형성되고, 외주면에 유체의 유동에 대응하여 회전하는 복수의 제2날개(25)가 장착되어 있다. 제2로터(21a, 21b)의 각 제2날개(25)는 제1로터(11a, 11b, 11c)의 제1날개(15)의 회전방향인 제1방향과 상반된 제2방향으로 회전하며, 이를 위해 제1로터(11a, 11b, 11c)의 제1날개(15)와 반대로 장착될 수 있다. As shown in FIG. 5, the second rotors 21a and 21b have a ring shape, and a second inner member 23 is formed on an inner circumferential surface thereof, and a plurality of second wings that rotate in response to the flow of a fluid on the outer circumferential surface thereof. (25) is attached. Each of the second blades 25 of the second rotors 21a and 21b rotates in a second direction opposite to the first direction that is the rotational direction of the first blades 15 of the first rotors 11a, 11b and 11c. To this end, it may be mounted opposite to the first blades 15 of the first rotors 11a, 11b, and 11c.
도 1 및 도 2에 도시된 바와 같이, 제1로터(11a, 11b, 11c)와 제2로터(21a, 21b)는 동축 상에서 일정 간격을 두고 교호적으로 배치되어 있다. 1 and 2, the first rotors 11a, 11b, 11c and the second rotors 21a, 21b are alternately arranged at regular intervals on the coaxial axis.
제1로터(11a, 11b, 11c)와 제2로터(21a, 21b)는 동일한 외경과 내경을 가질 수 있고, 각각의 제1 및 제2 내접부재(13)(23) 또한 동일한 치수를 가질 수 있다. 이에 따라 공정의 단순화 및 부품의 모듈화를 용이하게 구현할 수 있다. 그러나 필요에 따라 제1로터(11a, 11b, 11c)와 제2로터(21a, 21b)의 외경과 내경, 그리고 제1 및 제2 내접부재(13)(23)의 치수는 상이하게 설계될 수 있다. The first rotors 11a, 11b, 11c and the second rotors 21a, 21b may have the same outer diameter and inner diameter, and each of the first and second internal members 13, 23 may also have the same dimensions. have. As a result, the process can be simplified and the module can be easily modularized. However, if necessary, the outer and inner diameters of the first rotors 11a, 11b, and 11c and the second rotors 21a and 21b, and the dimensions of the first and second internal members 13 and 23 may be designed differently. have.
복수의 전동유니트(31)는 제1로터(11a, 11b, 11c)의 축선을 중심으로 방사상으로 배치되어, 제1로터(11a, 11b, 11c)의 제1내접부재(13)로부터 회전을 전달받는다. 본 실시예에서는 세 개의 전동유니트(31)가 제1로터(11a, 11b, 11c)의 축선을 중심으로 방사상으로 배치되어 있다.The plurality of electric units 31 are radially disposed about the axes of the first rotors 11a, 11b, and 11c, and transmit rotation from the first internal member 13 of the first rotors 11a, 11b, and 11c. Receive. In this embodiment, three electric units 31 are arranged radially about the axis of the first rotors 11a, 11b, 11c.
각 전동유니트(31)는, 제1로터(11a, 11b, 11c)의 제1내접부재(13)에 내접 회전하는 제1전동부재(33)와, 제1전동부재(33)와 동축 상에 배치되어 제1전동부재(33)와 일체로 회전하는 제2전동부재(35)를 포함한다.Each electric unit 31 is coaxially with the 1st transmission member 33 and the 1st transmission member 33 which internally rotate to the 1st internal member 13 of the 1st rotors 11a, 11b, 11c. The second transmission member 35 is disposed to rotate integrally with the first transmission member 33.
제1전동부재(33)와 제2전동부재(35)는 전동축(37)에 의해 결합되어 일체로 회전한다. 제1전동부재(33)와 제2전동부재(35)는 전동축(37)과 별도로 제작되어 키결합이나 열박음과 같은 공지된 방법에 의해 전동축(37)에 결합되는 것이 바람직하지만, 필요에 따라 전동축(37)과 일체로 형성될 수도 있다. 각 전동유니트(31)의 전동축(37)은 제1로터(11a, 11b, 11c)의 축선에 대해 평행하게 배치되고, 각각 양측 단부에서 하우징(61)에 회전 가능하게 지지된다.The first transmission member 33 and the second transmission member 35 are coupled by the transmission shaft 37 to rotate integrally. Although the first transmission member 33 and the second transmission member 35 are manufactured separately from the transmission shaft 37, it is preferable that the first transmission member 33 and the second transmission member 35 are coupled to the transmission shaft 37 by a known method such as key coupling or shrinkage. In accordance with the transmission shaft 37 may be formed integrally. The transmission shaft 37 of each transmission unit 31 is arrange | positioned in parallel with the axis line of the 1st rotors 11a, 11b, and 11c, and is rotatably supported by the housing 61 at the both ends, respectively.
복수의 반전유니트(41)는 방사상으로 배치된 복수의 전동유니트(31)의 사이에서 제2로터(21a, 21b)의 축선을 중심으로 방사상으로 배치되어, 각 전동유니트(31)의 회전을 반전시키며 제2로터(21a, 21b)의 제2내접부재(23)에 회전을 전달한다. 반전유니트(41)는 전동유니트(31)와 서로 쌍을 이루므로, 예컨대 본 실시예처럼 전동유니트(31)의 개수가 셋이라면 반전유니트(41)의 개수도 셋이 되어 서로 연결된다. The plurality of inversion units 41 are disposed radially around the axes of the second rotors 21a and 21b between the plurality of electric units 31 arranged radially, thereby inverting the rotation of each electric unit 31. And transmits rotation to the second internal member 23 of the second rotors 21a and 21b. Since the inversion unit 41 is paired with the electric unit 31, for example, if the number of the electric unit 31 is three as in this embodiment, the number of the inversion unit 41 is also set to be connected to each other.
각 반전유니트(41)는, 제2전동부재(35)의 회전을 반전시키는 제1반전부재(43)와, 제1반전부재(43)와 동축 상에 배치되고 제1반전부재(43)와 일체로 회전하며 제2로터(21a, 21b)의 제2내접부재(23)에 내접 회전하는 제2반전부재(45)를 포함한다.Each inversion unit 41 is arranged coaxially with the first inversion member 43 and the first inversion member 43 for inverting the rotation of the second transmission member 35. And a second inversion member 45 which rotates integrally and inwardly rotates the second internal member 23 of the second rotors 21a and 21b.
제1반전부재(43)는 제2전동부재(35)와 외접 회전하여, 제2전동부재(35)의 회전을 반전시킨다.The first inversion member 43 rotates externally with the second transmission member 35 to reverse the rotation of the second transmission member 35.
도 2에 도시된 바와 같이, 제2로터(21a, 21b)의 제2내접부재(23)에 내접 회전하는 제2반전부재(45)의 축방향 양측에는 한 쌍의 제1반전부재(43)가 각각 배치되어 있다. As shown in FIG. 2, a pair of first inverting members 43 are disposed on both sides of the second inverting member 45 in the inward rotation of the second inverting member 23 of the second rotors 21a and 21b. Are arranged respectively.
각 제1반전부재(43)와 제2반전부재(45)는 반전축(47)에 의해 결합되어 일체로 회전한다. 제1반전부재(43)와 제2반전부재(45)는 반전축(47)과 별도로 제작되어 키결합이나 열박음과 같은 공지된 방법에 의해 반전축(47)에 결합되는 것이 바람직하지만, 필요에 따라 반전축(47)과 일체로 형성될 수도 있다. 각 반전유니트(41)의 반전축(47)은 제2로터(21a, 21b)의 축선에 대해 평행하게 배치되고, 각각 양측 단부에서 하우징(61)에 회전 가능하게 지지된다.Each of the first inversion members 43 and the second inversion members 45 are coupled by the inversion shaft 47 to rotate integrally. The first inversion member 43 and the second inversion member 45 may be manufactured separately from the inversion shaft 47 so as to be coupled to the inversion shaft 47 by a known method such as key coupling or shrinkage. In accordance with this, it may be integrally formed with the inversion shaft 47. The inversion shaft 47 of each inversion unit 41 is arrange | positioned in parallel with the axis line of 2nd rotors 21a and 21b, and is rotatably supported by the housing 61 at each end part, respectively.
제1반전부재(43)와 제2전동부재(35) 사이의 회전비는 1:1로 할 수 있고, 필요에 따라 다른 비율로 할 수도 있다. 회전비를 1:1로 하는 경우에는, 제1 및 제2 전동부재(33, 35), 제1 및 제2 반전부재(43, 45)의 구성을 모두 동일하게 할 수 있으므로 공정의 단순화 및 부품의 모듈화를 용이하게 구현할 수 있다.The rotation ratio between the first inversion member 43 and the second transmission member 35 may be 1: 1, and may be in another ratio as necessary. When the rotation ratio is 1: 1, the configuration of the first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 can all be the same, thereby simplifying the process and Modularization can be easily implemented.
또한, 제1 및 제2 전동부재(33, 35), 제1 및 제2 반전부재(43, 45)는 모두 평행한 축들(37, 47) 상에서 회전하므로 간단한 구성으로 용이한 조립이 가능하다. In addition, since the first and second transmission members 33 and 35 and the first and second inversion members 43 and 45 all rotate on parallel axes 37 and 47, the assembly can be easily performed with a simple configuration.
도 2 및 도 7을 참조하면, 출력유니트(51)는 제1로터(11a, 11b, 11c) 및 제2로터(21a, 21b)의 회전력을 출력한다. 출력유니트(51)는 최종단에 배치된 제1로터(11c)의 제1내접부재(13)와 맞물리는 복수의 전동유니트(31)의 중심에 배치되어 복수의 전동유니트(31)의 회전을 전달받는 종동부재(53)와, 종동부재(53)에 결합된 출력축(55)을 포함한다.2 and 7, the output unit 51 outputs rotational forces of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b. The output unit 51 is disposed at the center of the plurality of electric units 31 engaged with the first internal member 13 of the first rotor 11c disposed at the last end to rotate the plurality of electric units 31. It includes a driven member 53 and an output shaft 55 coupled to the driven member 53.
종동부재(53)는 복수의 전동유니트(31)의 중심에, 즉 최종단의 제1로터(11c)의 중심축 선상에 배치되어 최종단의 제1전동부재(33)와 맞물리며 회전한다. 종동부재(53)는 최종단의 제1로터(11c)의 회전력은 물론 그 앞단에 배치된 제1로터(11a, 11b) 및 제2로터(21a, 21b)의 회전력도 함께 전달받는다. The driven member 53 is disposed at the center of the plurality of electric units 31, that is, on the central axis line of the first rotor 11c of the final stage, and meshes with the first transmission member 33 of the final stage to rotate. The driven member 53 receives not only the rotational force of the first rotor 11c of the last end but also the rotational force of the first rotors 11a and 11b and the second rotors 21a and 21b disposed at the front end thereof.
출력축(55)은 제1로터(11a, 11b, 11c)와 동축 상에 배치되고, 양측 단부가 하우징(61)에 회전가능하게 지지되어 있다. 출력축(55)은 종동부재(53)를 통해 전달되는 제1로터(11a, 11b, 11c) 및 제2로터(21a, 21b)의 회전력을 출력한다. The output shaft 55 is disposed coaxially with the first rotors 11a, 11b, 11c, and both ends are rotatably supported by the housing 61. The output shaft 55 outputs the rotational force of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b transmitted through the driven member 53.
이상의 구성에 있어서, 제1 및 제2 내접부재(13, 23), 제1 및 제2 전동부재(33, 35), 제1 및 제2 반전부재(43, 45), 그리고 종동부재(53)는 모두 기어로 이루어지거나 마찰차로 이루어질 수 있다. 즉, 이들 구성요소들은 전체적으로 기어열을 구성하거나 마찰차열을 구성할 수 있다. In the above configuration, the first and second internal members 13 and 23, the first and second transmission members 33 and 35, the first and second inverting members 43 and 45, and the driven member 53. All may be composed of gears or frictional differences. That is, these components may constitute a gear train as a whole or a friction heat shield.
본 실시예에 따르면, 출력유니트(51)는 최종단 제1로터(11c)의 제1내접부재(13)와 맞물리는 종동부재(53)와 출력축(55)을 포함하고 있지만, 본 발명은 이에 한정되지 않는다. 예컨대 출력유니트(51)는 최종단의 제1로터(11c)를 종동부재로 활용하고, 이 종동부재에 출력 브래킷(미도시)을 결합하여 회전력을 출력할 수도 있다. According to the present embodiment, the output unit 51 includes a driven member 53 and an output shaft 55 engaged with the first internal member 13 of the first rotor 11c of the final stage. It is not limited. For example, the output unit 51 may utilize the first rotor 11c of the final stage as a driven member, and output a rotational force by coupling an output bracket (not shown) to the driven member.
본 실시예에 따르면, 세 개의 제1로터(11a, 11b, 11c) 및 두 개의 제2로터(12a,12b)가 5단으로, 즉 홀수 단으로 교호적으로 배치되고, 이에 따라 제1로터(11c)가 최종단에 배치되어 있다. 그러나 본 발명에 따른 반전회전장치는 이에 한정되지 않으며, 적어도 하나의 제1로터와 적어도 하나의 제2로터를 포함하여 구현될 수 있다. 또한, 동일한 개수의 제1로터 및 제2로터가 짝수 단으로 배치될 수 있고, 이 경우에는 제2로터가 최종단에 배치된다(예컨대, 후술하는 제2실시예 참조). According to the present embodiment, three first rotors 11a, 11b, 11c and two second rotors 12a, 12b are alternately arranged in five stages, that is, odd stages, and thus the first rotor ( 11c) is disposed at the final stage. However, the reverse rotation device according to the present invention is not limited thereto, and may include at least one first rotor and at least one second rotor. In addition, the same number of first rotors and second rotors may be arranged in even stages, in which case the second rotor is arranged in the final stage (see, for example, the second embodiment described later).
하우징(61)은 입력단에 배치된 제1로터(11a)와 최종단에 배치된 제1로터(11c)를 지지하고, 중앙의 제1로터(11b), 제2로터(21a, 21b), 복수의 전동유니트(31), 복수의 반전유니트(41), 및 종동부재(53)를 감싸도록 마련된다. 또한, 하우징(61)에는 전동축(37), 반전축(47) 및 출력축(55)이 회전가능하게 지지되어 있다.The housing 61 supports the first rotor 11a disposed at the input end and the first rotor 11c disposed at the final end, and the first rotor 11b, the second rotors 21a, 21b, and a plurality of central rotors. Is provided to surround the electric unit 31, the plurality of inversion unit 41, and the driven member 53. The housing 61 is rotatably supported by the transmission shaft 37, the inversion shaft 47, and the output shaft 55.
도 2를 참조하면, 유동방지부(71)는 제1로터(11a, 11b, 11c)와 제2로터(21a, 21b)의 유동을 방지한다. 이를 위해 유동방지부(71)는, 서로 인접하는 제1로터(11a, 11b, 11c)와 제1반전부재(43)의 사이 및 서로 인접하는 제2로터(21a, 21b)와 제2전동부재(35)의 사이에 배치된 플랜지를 포함한다. 플랜지는 링형상을 가지며, 제1로터(11a, 11b, 11c)와 인접하는 제1반전부재(43)의 측면 및 제2로터(21a, 21b)와 인접하는 제2전동부재(35)의 측면에 각각 결합되는 것이 바람직하나, 이에 한정되지는 않는다. 이에 따라 유동방지부(71)는 제1로터(11a, 11b, 11c)와 제2로터(21a, 21b) 사이의 축 방향 간격을 일정하게 유지할 수 있다. Referring to FIG. 2, the flow preventing part 71 prevents the flow of the first rotors 11a, 11b and 11c and the second rotors 21a and 21b. To this end, the flow preventing part 71 includes the first rotors 11a, 11b, and 11c and the first inverting member 43 adjacent to each other, and the second rotors 21a and 21b and the second driving member adjacent to each other. And a flange disposed between 35. The flange has a ring shape, the side of the first inverting member 43 adjacent to the first rotors 11a, 11b, 11c and the side of the second transmission member 35 adjacent to the second rotors 21a, 21b. It is preferred that each is bonded to, but is not limited thereto. Accordingly, the flow preventing part 71 may maintain a constant axial gap between the first rotors 11a, 11b and 11c and the second rotors 21a and 21b.
도 2에 도시된 바와 같이, 본 실시예에 따른 반전회전장치는 각각의 제1로터(11a, 11b, 11c)의 제1내접부재(13)와 내접 회전하는 복수의 제1전동부재(33)의 중앙에 배치되어 복수의 제1전동부재(33)와 맞물려 회전하는 제1보조부재(81)를 더 포함할 수 있고, 마찬가지로 각각의 제2로터(21a, 21b)의 제2내접부재(23)와 내접 회전하는 복수의 제2반전부재(45)의 중앙에 배치되어 복수의 제2반전부재(45)와 맞물려 회전하는 제2보조부재(82)를 더 포함할 수 있다. 제1 및 제2 보조부재(81, 82)는 제1내접부재(13)와 제1전동부재(33)의 연결 및 제2내접부재(23)와 제2반전부재(45)의 연결에 의해 발생하는 반경방향의 하중을 보상하여, 유체기계용 반전회전장치의 역학적인 안정성을 높일 수 있다. 특히, 모든 부재들이 마찰차로 이루어진 경우에는, 제1 및 제2 보조부재(81, 82)는 마찰 손실을 줄이는 역할도 할 수 있다. As shown in FIG. 2, the reverse rotation apparatus according to the present embodiment includes a plurality of first transmission members 33 that are indirectly rotated with the first internal members 13 of the first rotors 11a, 11b, and 11c, respectively. It may further include a first auxiliary member 81 is disposed in the center of the first auxiliary member 81 to rotate in engagement with the plurality of first transmission member 33, the second internal member 23 of each of the second rotor (21a, 21b) similarly ) And a second auxiliary member 82 disposed in the center of the plurality of second inverting members 45 to be inwardly rotated to be engaged with the plurality of second inverting members 45 to rotate. The first and second auxiliary members 81 and 82 are connected by the first internal member 13 and the first transmission member 33 and the second internal member 23 and the second inversion member 45. By compensating for the radial load generated, it is possible to increase the mechanical stability of the reverse rotation device for fluid machines. In particular, when all members are made of a friction difference, the first and second auxiliary members 81 and 82 may also serve to reduce frictional losses.
이러한 구성에 의하여, 본 발명의 제1실시예에 따른 반전회전장치의 작동을 도 2 및 도 4 내지 도 7을 참조하여 설명한다.With this configuration, the operation of the reverse rotation apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 2 and 4 to 7.
본 실시예에 따른 반전회전장치에서, 제1로터(11a, 11b, 11c)의 제1날개(15)는 유체의 유동에 의해 제1방향, 예컨대 반시계방향으로 회전하여 제1로터(11a, 11b, 11c)에 회전력을 발생시키고, 제2로터(21a, 21b)의 제2날개(25)는 제1방향에 상반되는 제2방향, 예컨대 시계방향으로 회전하여 제2로터(21a, 21b)에 회전력을 발생한다. 이에, 본 실시예에 따른 반전회전장치로 유체가 유입되면, 각 제1로터(11a, 11b, 11c)는 반시계방향으로 회전하고, 각 제2로터(21a, 21b)는 시계방향으로 회전한다.In the reverse rotation apparatus according to the present embodiment, the first blades 15 of the first rotors 11a, 11b, and 11c are rotated in a first direction, for example counterclockwise, by the flow of the fluid, so that the first rotors 11a, The rotational force is generated in 11b and 11c, and the second blades 25 of the second rotors 21a and 21b rotate in a second direction opposite to the first direction, for example, in a clockwise direction, so that the second rotors 21a and 21b are rotated. To generate torque. Therefore, when the fluid flows into the reverse rotation device according to the present embodiment, each of the first rotors 11a, 11b, 11c rotates counterclockwise, and each of the second rotors 21a, 21b rotates clockwise. .
도 4에 도시된 바와 같이, 반전회전장치의 입력단, 즉 첫 번째 제1로터(11a)가 유체의 유동에 의해 반시계방향으로 회전하면, 첫 번째 제1로터(11a)의 제1내접부재(13)에 맞물려 있는 복수의 첫 번째 제1전동부재(33)는 복수의 전동축(37)과 일체로 각각 반시계방향으로 회전한다. As shown in FIG. 4, when the input terminal of the reverse rotation device, that is, the first first rotor 11a rotates counterclockwise by the flow of the fluid, the first internal member of the first first rotor 11a ( The first plurality of first transmission members 33 engaged with 13 rotate integrally with the plurality of transmission shafts 37 counterclockwise, respectively.
첫 번째 제1전동부재(33)가 반시계방향으로 회전함에 따라, 첫 번째 제1전동부재(33)와 전동축(37) 상에서 일체로 회전하는 첫 번째 제2전동부재(35)도 반시계방향으로 회전하면서 첫 번째 제1로터(11a)의 회전력을 전달받는다. 이에 따라 도 6에 도시된 바와 같이, 첫 번째 제2전동부재(35)와 맞물려 있는 첫 번째 제1반전부재(43)는 시계방향으로 반전 회전하며 첫 번째 제1로터(11a)의 회전력을 전달받는다. 도 6에는 세 개의 제2전동부재(35)와 세 개의 제1반전부재(43)가 서로 맞물려 회전하는 예가 도시되어 있다. 각 제2전동부재(35)와 각 제1반전부재(43)의 맞물림은 제1로터(11a, 11b, 11c)의 축선을 중심으로 방사상 대칭으로 이루어지기 때문에, 역학적인 안정을 확보할 수 있다. As the first first transmission member 33 rotates counterclockwise, the first second transmission member 35 that is integrally rotated on the first first transmission member 33 and the transmission shaft 37 is also counterclockwise. The rotational force of the first first rotor 11a is transmitted while rotating in the direction. Accordingly, as shown in FIG. 6, the first first inversion member 43 engaged with the first second transmission member 35 rotates in a clockwise direction and transmits the rotational force of the first first rotor 11a. Receive. 6 illustrates an example in which three second driving members 35 and three first inverting members 43 mesh with each other to rotate. Engagement of each of the second transmission members 35 and each of the first inversion members 43 is made radially symmetric about the axes of the first rotors 11a, 11b, and 11c, thereby ensuring mechanical stability. .
첫 번째 제1반전부재(43)가 시계방향으로 회전함에 따라, 도 5에 도시된 바와 같이, 첫 번째 제1반전부재(43)와 반전축(47) 상에서 일체로 회전하는 첫 번째 제2반전부재(45)도 시계방향으로 회전하면서 첫 번째 제1반전부재(43)를 통해 첫 번째 제1로터(11a)의 회전력을 전달받는다.As the first first inversion member 43 rotates in the clockwise direction, as shown in FIG. 5, the first second inversion that is integrally rotated on the first first inversion member 43 and the inversion shaft 47. The member 45 also rotates in a clockwise direction and receives the rotational force of the first first rotor 11a through the first first inversion member 43.
또한, 첫 번째 제2반전부재(45)는 첫 번째 제2로터(21a)의 제2내접부재(23)에 내접하고 있으므로, 유체의 유동에 따른 첫 번째 제2로터(21a)의 시계방향 회전에 의한 회전력도 전달받는다. 즉, 첫 번째 제2반전부재(45)는 첫 번째 제1로터(11a)의 회전력 및 첫 번째 제2로터(21a)의 회전력을 함께 전달받는다.In addition, since the first second inversion member 45 is inscribed to the second internal member 23 of the first second rotor 21a, the clockwise rotation of the first second rotor 21a according to the flow of the fluid is performed. The rotational force is also transmitted. That is, the first second inversion member 45 receives the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a together.
한편, 첫 번째 제2로터(21a)와 두 번째 제1로터(11b) 사이에서는, 첫 번째 제2반전부재(45)의 하류에 배치된 두 번째 제1반전부재(43)와, 두 번째 제1로터(11b)의 제1내접부재(13)와 내접 회전하는 두 번째 제1전동부재(33)의 상류에 배치된 두 번째 제2전동부재(35)의 맞물림에 의해 회전 반전이 발생한다.On the other hand, between the first second rotor 21a and the second first rotor 11b, the second first inversion member 43 disposed downstream of the first second inversion member 45 and the second agent Rotation reversal occurs by the engagement of the first internal member 13 of the first rotor 11b and the second second transmission member 35 disposed upstream of the second first transmission member 33 which is inscribed in rotation.
두 번째 제1반전부재(43)는 첫 번째 제2반전부재(45)가 시계방향으로 회전함에 따라 시계방향으로 회전한다. 이에 따라 도 6에 도시된 바와 같이, 상기 두 번째 제1반전부재(43)와 맞물려 있는 두 번째 제2전동부재(35)는 반시계방향으로 회전하며, 첫 번째 제1로터(11a) 및 첫 번째 제2로터(21a)의 회전력을 함께 전달받는다.The second first inversion member 43 rotates clockwise as the first second inversion member 45 rotates clockwise. Accordingly, as shown in FIG. 6, the second second transmission member 35 engaged with the second first inversion member 43 rotates in a counterclockwise direction, and the first first rotor 11a and the first The rotational force of the second second rotor 21a is received together.
두 번째 제2전동부재(35)가 반시계방향으로 회전함에 따라, 두 번째 제2전동부재(35)의 하류에서 두 번째 제1로터(11b)의 제1내접부재(13)에 내접 회전하는 두 번째 제1전동부재(33)도 반시계방향으로 회전하면서 첫 번째 제1로터(11a) 및 첫 번째 제2로터(21a)의 회전력을 함께 전달받는다.As the second second transmission member 35 rotates in the counterclockwise direction, the inward rotation of the first internal member 13 of the second first rotor 11b downstream of the second second transmission member 35. The second first transmission member 33 also rotates counterclockwise to receive the rotational force of the first first rotor 11a and the first second rotor 21a together.
이 때, 도 4에 도시된 바와 같이, 두 번째 제1전동부재(33)는 유체의 유동에 따른 두 번째 제1로터(11b)의 반시계방향 회전에 의한 회전력도 전달받는다. 즉, 두 번째 제1전동부재(33)는 상류의 제2전동부재(35)로부터 전달된 첫 번째 제1로터(11a)의 회전력 및 첫 번째 제2로터(21a)의 회전력과 함께 두 번째 제1로터(11b)의 회전력을 전달받으며 반시계방향으로 회전한다.At this time, as shown in Figure 4, the second first transmission member 33 is also received a rotational force by the counterclockwise rotation of the second first rotor (11b) according to the flow of the fluid. That is, the second first transmission member 33 includes the second first transmission member together with the rotational force of the first first rotor 11a and the rotational force of the first second rotor 21a transmitted from the second transmission member 35 upstream. Receives the rotational force of the rotor 11b and rotates counterclockwise.
이러한 과정을 되풀이하여, 상류에 있는 모든 로터(11a, 11b, 21a, 21b)의 회전력은 최종단에 위치한 제1로터(11c)의 제1내접부재(13)에 내접 회전하는 최종단의 제1전동부재(33)에 전달된다. 이 때, 최종단 제1전동부재(33)는 최종단 제1로터(11c)의 회전력도 전달받으므로, 최종단 제1전동부재(33)는 모든 로터(11a, 11b, 11c, 21a, 21b)의 회전력을 함께 전달받는다. By repeating this process, the rotational force of all the rotors 11a, 11b, 21a, 21b upstream is indirectly rotated by the first internal member 13 of the first rotor 11c located at the final end. It is transmitted to the transmission member (33). At this time, since the final stage first transmission member 33 receives the rotational force of the final stage first rotor 11c, the final stage first transmission member 33 includes all the rotors 11a, 11b, 11c, 21a, 21b. The rotational force of) is transmitted together.
최종단 제1전동부재(33)가 반시계방향으로 회전함에 따라, 도 7에 도시된 바와 같이, 복수의 제1전동부재(33)와 외접 회전하는 종동부재(53)는 시계방향으로 회전하고, 출력축(55) 또한 시계방향으로 회전한다. 이에 따라, 모든 로터(11a, 11b, 11c, 21a, 21b)의 회전력은 종동부재(53)를 거쳐 출력축(55)으로 전달된다.As the final stage first transmission member 33 rotates in a counterclockwise direction, as shown in FIG. 7, the driven members 53 externally rotating with the plurality of first transmission members 33 rotate clockwise. The output shaft 55 also rotates clockwise. Accordingly, the rotational forces of all the rotors 11a, 11b, 11c, 21a, 21b are transmitted to the output shaft 55 via the driven member 53.
본 발명의 제1실시예에 따른 유체기계용 반전회전장치에 의하면, 유체의 유동에 대응하여 반대 방향으로 회전하는 제1날개(15) 및 제2날개(25)가 각각 장착된 제1로터(11a, 11b, 11c) 및 제2로터(21a, 21b)가 동축 상에서 교호적으로 배치되어, 제1날개(15) 및 제2날개(25)를 통하여 입력되는 유체의 운동에너지를 기계적 에너지로 변환하여 출력시킬 수 있다. 또한 CRP 원리를 채용하여 제1날개(15) 및 제2날개(25)의 유체역학적인 상호작용으로 인한 소음을 낮출 수 있고, 에너지 손실을 줄일 수 있다. 또한 모듈화가 가능한 기어열 또는 마찰차열의 간단한 조합 및 단일의 출력축(55)으로 모든 회전력을 전달할 수 있으므로, 콤팩트한 구조로 높은 에너지 전달 효율을 달성할 수 있다. According to the reverse rotation device for a fluid machine according to the first embodiment of the present invention, the first rotor (15) and the second blade (25) which are respectively rotated in the opposite direction in response to the flow of the fluid ( 11a, 11b, and 11c and the second rotors 21a and 21b are alternately arranged coaxially to convert the kinetic energy of the fluid input through the first wing 15 and the second wing 25 into mechanical energy. Can be output. In addition, by employing the CRP principle it is possible to lower the noise due to the hydrodynamic interaction of the first wing 15 and the second wing 25, it is possible to reduce the energy loss. In addition, since a simple combination of a modular gear train or frictional heat and a single output shaft 55 can transmit all rotational forces, a compact structure can achieve high energy transfer efficiency.
도 8 내지 도 11은 본 발명의 제2실시예에 따른 반전회전장치를 도시한 것이다. 본 실시예에 따른 반전회전장치는, 전술한 제1실시예와 달리, 복수의 제1로터(11a, 11b) 및 복수의 제2로터(21a, 21b) 사이에 회전 반전을 위한 수단을 두지 않는다는 점이 특징이다. 즉, 회전 반전을 위한 제2전동부재(35)와 제1반전부재(43)의 세트가 제1로터(11a, 11b)의 입력단 상류에만 배치되어 있다. 이에 따라, 유동방지부(71)의 배치도 제1실시예와 비교할 때 차이가 있다. 즉, 각각의 제1 및 제2 내접부재(13, 23)와 인접하게 배치된 제1 및 제2 반전부재(43, 45)의 측면에만 플랜지를 부착하면 충분하다. 이 경우, 각각의 제1 및 제2 내접부재(13, 23) 사이에 배치된 플랜지는 스페이서 역할도 하게 된다. 8 to 11 show a reverse rotation device according to a second embodiment of the present invention. Unlike the first embodiment described above, the reverse rotation device according to the present embodiment does not have a means for reversing rotation between the plurality of first rotors 11a and 11b and the plurality of second rotors 21a and 21b. It is characteristic. That is, the set of the second transmission member 35 and the first inversion member 43 for rotation reversal is disposed only upstream of the input end of the first rotors 11a and 11b. Accordingly, the arrangement of the flow preventing part 71 also differs when compared with the first embodiment. That is, it is sufficient to attach the flange only to the side surfaces of the first and second inversion members 43 and 45 disposed adjacent to the first and second internal members 13 and 23, respectively. In this case, the flange disposed between each of the first and second internal members 13 and 23 also serves as a spacer.
이하 본 발명의 제2실시예에 따른 반전회전장치의 작동을 설명한다.Hereinafter, the operation of the reverse rotation apparatus according to the second embodiment of the present invention.
전술한 제1실시예의 도 4에 도시된 바와 같이, 첫 번째 제1로터(11a)가 유체의 유동에 의해 반시계방향으로 회전하면, 첫 번째 제1로터(11a)의 제1내접부재(13)에 맞물려 있는 첫 번째 제1전동부재(33)는 반시계방향으로 회전한다. As shown in FIG. 4 of the above-described first embodiment, when the first first rotor 11a is rotated counterclockwise by the flow of the fluid, the first internal member 13 of the first first rotor 11a is rotated. The first first transmission member 33 engaged with) rotates counterclockwise.
첫 번째 제1전동부재(33)가 반시계방향으로 회전함에 따라, 그 상류에 있는 제2전동부재(35)도 반시계방향으로 회전하며 첫 번째 제1로터(11a)의 회전력을 전달받는다. 이에 따라 제2전동부재(35)와 맞물려 있는 제1반전부재(43)는 시계방향으로 회전하면서 첫 번째 제1로터(11a)의 회전력을 전달받는다. As the first first transmission member 33 rotates in the counterclockwise direction, the second transmission member 35 upstream thereof also rotates in the counterclockwise direction and receives the rotational force of the first first rotor 11a. Accordingly, the first inversion member 43 engaged with the second transmission member 35 receives the rotational force of the first first rotor 11a while rotating clockwise.
제1반전부재(43)가 시계방향으로 회전함에 따라, 첫 번째 제2반전부재(45)도 시계방향으로 회전하면서 첫 번째 제1로터(11a)의 회전력을 전달받는다. 이 때, 첫 번째 제2반전부재(45)는 첫 번째 제2로터(21a)의 제2내접부재(23)에 내접하고 있으므로, 유체의 유동에 따른 첫 번째 제2로터(21a)의 시계방향 회전에 의한 회전력도 함께 전달받는다. As the first inversion member 43 rotates in the clockwise direction, the first second inversion member 45 also rotates in the clockwise direction and receives the rotational force of the first first rotor 11a. At this time, since the first second inverting member 45 is inscribed in the second internal member 23 of the first second rotor 21a, the clockwise direction of the first second rotor 21a according to the flow of the fluid. The rotational force by rotation is also transmitted.
마찬가지로, 두 번째 제1전동부재(33)는 두 번째 제1로터(11b)의 반시계방향 회전력을 전달받고, 두 번째(최종단)의 제2반전부재(45)는 두 번째(최종단) 제2로터(21b)의 시계방향 회전력을 전달받는다. Similarly, the second first transmission member 33 receives the counterclockwise rotational force of the second first rotor 11b, and the second (final end) second reverse member 45 is second (final end). The clockwise rotational force of the second rotor 21b is received.
여기서, 입력단의 제2전동부재(35)와 제1로터(11a, 11b)에 내접 회전하는 제1전동부재들(33)은 모두 하나의 전동축(37)에 결합되어 일체로 회전하므로, 제1로터(11a, 11b)의 모든 회전력은 전동축(37)을 통하여 제2전동부재(35)에 전달된다. 마찬가지로, 입력단의 제1반전부재(43)와 제2로터(21a, 21b)에 내접 회전하는 제2반전부재들(45)은 모두 하나의 반전축(47)에 결합되어 일체로 회전하므로, 제2로터(21a, 21b)의 모든 회전력도 반전축(47)을 통하여 제1반전부재(43)에 전달된다. 또한 제1반전부재(43)는 제2전동부재(35)와의 맞물림을 통하여 제1로터(11a, 11b)의 회전력도 전달받는다. 이렇게 하여 제1로터(11a, 11b)의 회전력 및 제2로터(21a, 21b)의 회전력은 모두 최종단의 제2반전부재(45)로 전달되고, 제2반전부재(45)와 맞물린 종동부재(53)를 거쳐 출력축(55)으로 출력된다. Here, since all of the first transmission members 33 which are inwardly rotated by the second transmission member 35 and the first rotors 11a and 11b of the input end are coupled to one transmission shaft 37 and rotate integrally, All rotational forces of the first rotors 11a and 11b are transmitted to the second transmission member 35 through the transmission shaft 37. Similarly, since the second inversion members 45 that rotate inwardly of the first inversion member 43 and the second rotors 21a and 21b of the input terminal are all coupled to one inversion shaft 47 and integrally rotated, All rotational forces of the two rotors 21a and 21b are also transmitted to the first inversion member 43 through the inversion shaft 47. In addition, the first inverting member 43 receives the rotational force of the first rotors 11a and 11b through engagement with the second driving member 35. In this way, the rotational force of the first rotors 11a and 11b and the rotational force of the second rotors 21a and 21b are both transmitted to the second inversion member 45 at the final stage, and the driven member engaged with the second inversion member 45. Output to the output shaft 55 via 53.
본 발명의 제2실시예에서, 회전 반전을 위한 제2전동부재(35)와 제1반전부재(43)는 입력단에 배치되었지만, 설계상 필요에 따라 최종단에 배치될 수도 있고, 입력단 및 최종단에 모두 배치될 수도 있다. 입력단 및 최종단에 모두 배치되는 경우에는, 반전 하중이 분산된다는 장점이 있다. In the second embodiment of the present invention, although the second motor member 35 and the first inverting member 43 for rotation reversal are disposed at the input terminal, they may be disposed at the final stage as required by design, All may be arranged at the stage. When arranged at both the input end and the end, there is an advantage that the reverse load is distributed.
이상에서 본 발명의 실시예들이 첨부도면을 참조하여 설명되었으나, 본 발명은 여기에 한정되는 것이 아니며, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변형 실시가 가능함은 물론이다.Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited thereto, and various modifications may be made without departing from the spirit of the present invention.
본 발명에 따른 유체기계용 반전회전장치는 가스터빈, 증기터빈, 제트엔진, 풍력발전장치 등 다양한 유체기계에 활용될 수 있다. Reverse rotation device for a fluid machine according to the present invention can be utilized in a variety of fluid machines, such as gas turbines, steam turbines, jet engines, wind turbines.

Claims (9)

  1. 내주면에 내접부재가 형성되고, 외주면에 유체의 유동에 대응하여 제1방향으로 회전하는 복수의 날개가 장착되도록 구성된 적어도 하나의 제1로터와; At least one first rotor having an inscribed member formed on an inner circumferential surface thereof and configured to mount a plurality of wings that rotate in a first direction corresponding to the flow of the fluid on the outer circumferential surface;
    내주면에 내접부재가 형성되고, 외주면에 유체의 유동에 대응하여 상기 제1방향과 상반된 제2방향으로 회전하는 복수의 날개가 장착되도록 구성되고, 상기 제1로터와 동축 상에서 교호적으로 배치된 적어도 하나의 제2로터와;An inner member is formed on an inner circumferential surface, and a plurality of vanes rotating in a second direction opposite to the first direction is mounted on the outer circumferential surface, and at least alternately arranged coaxially with the first rotor One second rotor;
    상기 제1로터의 축선을 중심으로 방사상으로 배치되어, 상기 제1로터의 내접부재로부터 회전을 전달받는 복수의 전동유니트와;A plurality of electric units disposed radially about an axis of the first rotor and receiving rotation from an internal member of the first rotor;
    상기 복수의 전동유니트의 사이에서 상기 제2로터의 축선을 중심으로 방사상으로 배치되어, 상기 복수의 전동유니트의 회전을 반전시키며, 상기 제2로터의 내접부재에 회전을 전달하는 복수의 반전유니트와;A plurality of inverting units disposed radially about the axis of the second rotor between the plurality of electric units, inverting rotation of the plurality of electric units, and transmitting rotation to the inner member of the second rotor; ;
    상기 제1로터 및 상기 제2로터의 회전력을 출력하는 출력유니트를 포함하는 것을 특징으로 하는 유체기계용 반전회전장치.And an output unit for outputting rotational forces of the first rotor and the second rotor.
  2. 제1항에 있어서, The method of claim 1,
    상기 전동유니트와 상기 반전유니트 사이의 반전은 상기 제1로터 및 상기 제2로터 사이에서 일어나는 것을 특징으로 하는 유체기계용 반전회전장치. And the reversal between the electric unit and the reversal unit occurs between the first rotor and the second rotor.
  3. 제1항에 있어서, The method of claim 1,
    상기 전동유니트와 상기 반전유니트 사이의 반전은 최초 입력단에서 일어나는 것을 특징으로 하는 유체기계용 반전회전장치. Reverse rotation device for a fluid machine, characterized in that the reversal between the electric unit and the reversal unit occurs at the initial input stage.
  4. 제3항에 있어서, The method of claim 3,
    상기 전동유니트와 상기 반전유니트 사이의 반전은 최종 출력단에서도 일어나는 것을 특징으로 하는 유체기계용 반전회전장치. Reverse rotation device for a fluid machine, characterized in that the inversion between the electric unit and the inversion unit also occurs at the final output stage.
  5. 제1항 내지 제4항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 4,
    상기 복수의 전동유니트 각각은, 상기 제1로터의 내접부재에 내접 회전하는 제1전동부재와, 상기 제1전동부재와 동축 상에 배치되어 상기 제1전동부재와 일체로 회전하는 제2전동부재를 포함하고, Each of the plurality of transmission units may include a first transmission member that is internally rotated by the internal member of the first rotor, and a second transmission member which is coaxial with the first transmission member and integrally rotates with the first transmission member. Including,
    상기 복수의 반전유니트 각각은, 상기 제2전동부재의 회전을 반전시키는 제1반전부재와, 상기 제1반전부재와 동축 상에 배치되고 상기 제1반전부재와 일체로 회전하며 상기 제2로터의 내접부재에 내접 회전하는 제2반전부재를 포함하는 것을 특징으로 하는 유체기계용 반전회전장치.Each of the plurality of inversion units may include: a first inversion member for inverting rotation of the second transmission member, and disposed coaxially with the first inversion member and integrally rotating with the first inversion member, such that And a second inversion member which rotates inwardly in the inscribed member.
  6. 제5항에 있어서,The method of claim 5,
    상기 제2전동부재와 상기 제1반전부재 사이의 회전비는 1:1인 것을 특징으로 하는 유체기계용 반전회전장치.Reverse rotation device for a fluid machine, characterized in that the rotation ratio between the second transmission member and the first inversion member is 1: 1.
  7. 제5항에 있어서,The method of claim 5,
    상기 제1로터와 상기 제2로터의 유동을 방지하는 유동방지부를 더 포함하는 것을 특징으로 하는 유체기계용 반전회전장치.And a flow preventing portion for preventing the flow of the first rotor and the second rotor.
  8. 제5항에 있어서,The method of claim 5,
    상기 출력유니트는 최종단에 배치된 상기 제1로터의 내접부재와 맞물리는 상기 제1전동부재 또는 상기 제2로터의 내접부재와 맞물리는 상기 제2반전부재와 외접 회전하는 종동부재와, 상기 종동부재에 결합된 출력축을 포함하는 것을 특징으로 하는 유체기계용 반전회전장치.The output unit may include a driven member externally rotating with the second reverse member engaged with the internal member of the first rotor or the second motor engaged with the internal member of the first rotor disposed at the final end, and the driven member. Reverse rotation device for a fluid machine comprising an output shaft coupled to the member.
  9. 제5항에 있어서, The method of claim 5,
    최종단에 배치된 상기 제1로터 또는 상기 제2로터를 제외한 상기 제1로터 및 상기 제2로터와 각각 맞물리는 상기 복수의 제1전동부재 및 상기 복수의 제2반전부재의 중앙에 배치되어 상기 제1전동부재 및 상기 제2반전부재와 외접 회전하는 보조부재를 더 포함하는 것을 특징으로 하는 유체기계용 반전회전장치. Disposed in the center of the plurality of first transmission members and the plurality of second inversion members respectively engaged with the first rotor and the second rotor except for the first rotor or the second rotor disposed at a final end of the The reverse rotation device for a fluid machine, further comprising a first transmission member and an auxiliary member externally rotating with the second inversion member.
PCT/KR2010/003180 2010-05-20 2010-05-20 Counter/contra-rotating device for fluid machinery WO2011145762A1 (en)

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WO2004040740A1 (en) * 2002-10-29 2004-05-13 Siemens Aktiengesellschaft Dual-supply induction machine comprising a second counter-rotating rotor
JP2006077753A (en) * 2004-09-13 2006-03-23 Akihisa Matsuzono Rotation addition drive control device
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CN107429656A (en) * 2015-02-12 2017-12-01 液力能源公司 Water power/water turbine and production and preparation method thereof
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