CN116534230A - Multifunctional independent double-propeller type nacelle propeller - Google Patents

Multifunctional independent double-propeller type nacelle propeller Download PDF

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Publication number
CN116534230A
CN116534230A CN202310535636.5A CN202310535636A CN116534230A CN 116534230 A CN116534230 A CN 116534230A CN 202310535636 A CN202310535636 A CN 202310535636A CN 116534230 A CN116534230 A CN 116534230A
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CN
China
Prior art keywords
propeller
hydraulic
motor
permanent magnet
independent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310535636.5A
Other languages
Chinese (zh)
Inventor
吴百公
梁大荣
刘金星
姚震球
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Jiangsu University of Science and Technology
Original Assignee
Jiangsu University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu University of Science and Technology filed Critical Jiangsu University of Science and Technology
Priority to CN202310535636.5A priority Critical patent/CN116534230A/en
Publication of CN116534230A publication Critical patent/CN116534230A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H5/1252—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters the ability to move being conferred by gearing in transmission between prime mover and propeller and the propulsion unit being other than in a "Z" configuration
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers

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

Abstract

The invention discloses a multifunctional independent double-propeller type nacelle propeller which comprises a lifting device, a rotating device, a propeller adjusting device and an independent control propeller component. The turning device is installed on the upper surface of the deck, the lifting device is installed on the turning device, the lifting device comprises a hydraulic top plate arranged at the top of the lifting device, the independent control propeller assembly sequentially penetrates through the deck, the turning device and the lifting device from the lower direction of the deck and is fixed with the bottom of the hydraulic top plate, the independent control propeller assembly comprises two mutually independent propeller bodies, the propeller intervals on the two propeller bodies are arranged in a back-to-back mode, and the propeller adjusting devices are respectively installed on paddles of each propeller. The invention realizes the functions of lifting, 360-degree full rotation, mutually independent control of double propellers, mutual backup, adjustable pitch, motion compensation and the like of the nacelle propeller, and provides great help for the ship in severe conditions such as polar ice breaking and the like and the ship control.

Description

Multifunctional independent double-propeller type nacelle propeller
Technical Field
The invention relates to a nacelle propulsion device, in particular to a multifunctional independent double-propeller nacelle propeller.
Background
The first proposal of the nacelle propeller is based on the requirement of the ship to the sea condition of the ice area when the ship breaks ice, and the nacelle propeller is a novel propeller integrating propulsion and steering devices, so that the flexibility of ship design, construction and use is greatly improved, and meanwhile, the nacelle propeller is widely focused by the world shipbuilding industry.
At present, most of nacelle propellers commonly used at home and abroad are of single propeller or coaxial co-rotating double propeller structures and are not liftable, so that the nacelle propellers cannot be flexibly adapted to changing navigation conditions and severe polar weather, and meanwhile, the nacelle propellers have disadvantages in propulsion efficiency and safety.
For example, patent CN201520466422.8 designs a novel nacelle propeller shape, but still adopts a single propeller structure, and when the propeller cannot work normally, the safety is greatly reduced; the patent CN202021179734.8 realizes the lifting of the propeller by driving the fixed pin to be inserted into the corresponding pin hole through the hydraulic cylinder, but the device has larger volume, and meanwhile, the fixed pin is matched with the pin hole, so the integral installation precision requirement is higher; the patent CN202010581124.9 is characterized in that two thrust fins are uniformly arranged on the propeller barrel, one end of the thrust fin is provided with a propeller, and the other end of the thrust fin is provided with a tail fin, so that the ship resistance is reduced, and the propulsion efficiency is improved.
Disclosure of Invention
The invention aims to: aiming at the problems, the invention aims to provide the multifunctional independent double-propeller type nacelle propeller which can be used for carrying out multiple functional adjustment according to different weather conditions, providing assistance for ships in dealing with severe conditions such as polar ice breaking and the like and ship control, improving the propulsion efficiency and ensuring the safety.
The technical scheme is as follows: the utility model provides a multi-functional independent double screw propeller formula nacelle propeller, including elevating gear, slewer, transfer oar device, independent control propeller subassembly, slewer installs in the deck upper surface, elevating gear installs on slewer, elevating gear is including setting up in the hydraulic roof at its top, independent control propeller subassembly passes deck, slewer, elevating gear in proper order from the deck below, and fixed with the bottom of hydraulic roof, independent control propeller subassembly includes two mutually independent propeller bodies, the screw interval on two propeller bodies sets up in opposite directions, and install respectively on the screw paddle of every screw and transfer oar device.
Further, elevating gear still includes hydraulic floor, pneumatic cylinder, ball joint, and hydraulic floor is fixed with slewer, and hydraulic ram interval is arranged in the hydraulic floor top, is connected through the pneumatic cylinder that a plurality of intervals set up between the two, and the pneumatic cylinder of pneumatic cylinder is fixed with hydraulic floor's upper surface, and the pneumatic cylinder piston rod is fixed on the pneumatic cylinder piston to be connected with hydraulic ram's lower bottom surface through ball joint.
Optimally, the number of the hydraulic cylinders is 4, the hydraulic cylinders are respectively vertically arranged, and the connecting lines of the four hydraulic cylinders are arranged at intervals in a rectangular shape. When hydraulic oil is injected into the cylinder body of the hydraulic cylinder, the piston rod of the hydraulic cylinder is driven by the internal pressure of the oil to realize linear reciprocating motion in the vertical direction.
Further, the rotating device comprises a rotating spur gear, a shaft barrel, a rotating pinion, a stepping motor and a motor fixing piece, wherein the rotating pinion is rotatably arranged on the upper surface of the deck through the shaft barrel, the lifting device is arranged on the rotating pinion, the stepping motor is arranged on the deck through the motor fixing piece, the rotating spur gear is connected with the stepping motor and meshed with the rotating pinion, and the screw assembly is independently controlled to penetrate through the shaft barrel.
The 360-degree full rotation of the rotation pinion is realized through gear transmission, so that the lifting device on the rotation pinion is driven to rotate together, and the propeller component is independently controlled to be connected with the lifting device, so that the rotation pinion can also rotate together.
Further, the independent control propeller assembly further comprises a left cabin body support and a right cabin body support, the left cabin body support and the right cabin body support are vertically arranged side by side, the upper parts of the left cabin body support and the right cabin body support are respectively fixed with the bottom of the hydraulic top plate, and a propeller body is respectively arranged at the lower parts of the left cabin body support and the right cabin body support.
Further, the propeller body further comprises a permanent magnet motor, a permanent magnet motor bearing and a permanent magnet motor front end cover, wherein the permanent magnet motor front end cover is arranged at the front part of the permanent magnet motor through the permanent magnet motor bearing, and a permanent magnet motor rotor of the permanent magnet motor penetrates out of the permanent magnet motor front end cover and is connected with the propeller.
The power lines are connected to the corresponding permanent magnet motors through the straight holes formed in the left cabin support and the right cabin support respectively, so that the functions of adjustable rotating speeds of the two propellers, no mutual interference and mutual backup are achieved.
The left cabin body support and the right cabin body support are internally provided with a plurality of through holes for respectively placing strong current, weak current, oil liquid, water and the like, so that the anti-interference capacity between the strong current and the weak current is improved, and oil-water separation is realized.
Optimally, the propeller further comprises a propeller hub and a fairing, a plurality of propeller blades are installed on the propeller hub in a circumferential rotation mode, the angle of each propeller blade is adjusted through a propeller adjusting device, and the fairing is installed at the front end of the propeller hub.
Optimally, the pitch device comprises a servo motor, a pitch spur gear, a hub internal gear and a reduction gearbox, wherein the servo motor is arranged on a propeller hub, the pitch spur gear is connected with a motor shaft of the servo motor through the reduction gearbox, a groove is axially formed in the end face of the root part of a propeller blade, and the hub internal gear is arranged in the groove and meshed with the pitch spur gear.
Optimally, the pitch adjusting device further comprises a pitch angle encoder, and the pitch angle encoder is arranged on a motor shaft of the servo motor and used for motor rotation angle feedback.
Optimally, the number of propeller blades on each propeller is 4.
The pitch angle of each propeller blade is controlled by a servo control system in the pitch adjusting device, each propeller blade is independently adjusted by a servo motor with rotation angle feedback, the rotation angle feedback of the motor adopts a pitch angle encoder, the motor is arranged on a motor shaft, and the closed-loop control of the rotation speed and the rotation angle is realized by the servo motor. The servo motor is connected with the reduction gearbox, and is connected with the hub internal gear through the pitch-adjusting spur gear to drive the propeller blades to rotate, so that the pitch angle of the propeller blades is directly controlled.
The beneficial effects are that: compared with the prior art, the invention has the advantages that:
1. the nacelle propeller can flexibly adjust the height and the inclination angle of the nacelle propeller through the lifting device so as to provide larger thrust and efficiency; and can play a great role in severe conditions such as ice breaking and the like.
2. The nacelle propeller realizes full rotation through gear meshing, so that the direction of the propelling force is changed.
3. The nacelle propeller is independently controlled by adopting the front and rear double propellers, and the significance is that the front and rear propellers are adjustable in rotating speed and mutually independent and mutually backup, so that the safety and reliability in the sailing process are greatly improved.
4. The propeller adopts a mode of adjustable propeller, and the pitch angle of the propeller blade is changed through a propeller adjusting device under different sailing conditions so as to provide larger thrust.
5. The lifting device is connected with the hydraulic cylinders by adopting the spherical universal joint, and when the whole ship tilts, the nacelle propeller tilts, so that the four hydraulic cylinders are in front high and back low or front low and back high motion compensation at the moment to ensure the relative level of the nacelle propeller, thereby ensuring safer and faster passing through the wave crest and the wave trough.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of a configuration of a pitch device mated with a propeller;
fig. 5 is a schematic view of the structure of the propeller body with the propeller removed.
Detailed Description
The invention will be further elucidated with reference to the drawings and specific examples, which are to be understood as illustrative only and are not intended to limit the scope of the invention.
A multifunctional independent double-propeller type nacelle propeller, as shown in figures 1-5, comprises a lifting device, a turning device, a propeller adjusting device and an independent control propeller assembly.
The rotary device is arranged on the upper surface of the deck 1, the rotary device comprises a rotary spur gear 2, a shaft barrel 7, a rotary pinion 8, a stepping motor 15 and a motor fixing piece 16, the rotary pinion 8 is rotatably arranged on the upper surface of the deck 1 through the shaft barrel 7, the stepping motor 15 is arranged on the deck 1 through the motor fixing piece 16, and the rotary spur gear 2 is connected with the stepping motor 15 and meshed with the rotary pinion 8.
The lifting device is arranged on the rotary pinion 8 and comprises a hydraulic bottom plate 9, hydraulic cylinders, a hydraulic top plate 13 and a spherical universal joint 14, wherein the hydraulic bottom plate 9 is fixed with the upper surface of the rotary pinion 8, the hydraulic top plate 13 is arranged above the hydraulic bottom plate 9 at intervals and connected with the hydraulic cylinders through a plurality of intervals, the number of the hydraulic cylinders is 4, the hydraulic cylinders are respectively vertically arranged, the connecting lines of the hydraulic cylinders are arranged at intervals in a rectangular mode, a hydraulic cylinder barrel 10 of the hydraulic cylinder is fixed with the upper surface of the hydraulic bottom plate 9, a hydraulic cylinder piston 12 and a hydraulic cylinder piston rod 11 are connected with the lower bottom surface of the hydraulic top plate 13 through the spherical universal joint 14, and the hydraulic top plate 13 is arranged at the top of the lifting device.
The independent control propeller assembly comprises two mutually independent propeller bodies, a left cabin support 4 and a right cabin support 27, the left cabin support 4 and the right cabin support 27 respectively penetrate through the deck 1, the shaft barrel 7 and the lifting device in sequence from the lower direction of the deck 1, the upper parts of the left cabin support 4 and the right cabin support 27 are respectively fixed with the bottom of the hydraulic top plate 13, the lower parts of the left cabin support 4 and the right cabin support 27 are respectively provided with a propeller body, propellers on the two propeller bodies are arranged in a mutually opposite mode at intervals, the propeller bodies further comprise a permanent magnet motor, a permanent magnet motor bearing 24 and a permanent magnet motor front end cover 25, the permanent magnet motor comprises a permanent magnet motor stator 22 and a permanent magnet motor rotor 23, the permanent magnet motor front end cover 25 is arranged at the front part of the permanent magnet motor through a permanent magnet motor bearing 24, and the permanent magnet motor rotor 23 of the permanent magnet motor penetrates out of the permanent magnet motor front end cover 25 and is connected with the propellers. Right below the hydraulic top plate 13 are a left cabin support 4 and a right cabin support 27, so that the propeller body is driven to lift together when the hydraulic cylinder works. The permanent magnet motor stator 22 is fixed with the left cabin bracket 4 or the right cabin bracket 27 respectively, the two permanent magnet motor rotating shafts are not connected with each other, and the two cabins are closed and independently powered.
The screw includes screw blade 3, screw hub 5, radome fairing 6, and screw hub 5's circumferential rotation installs a plurality of screw blades 3, and screw blade 3 and screw hub 5 cooperation, and both are no longer a whole that links firmly, but swing joint, and screw blade 3 quantity on every screw is 4, and every screw blade 3 is respectively through a oar device angle regulation, and radome fairing 6 installs in screw hub 5's front end.
The pitch adjusting device comprises a servo motor 17, a pitch adjusting spur gear 18, a hub internal gear 19, a pitch angle encoder 20 and a reduction gearbox 21, wherein the servo motor 17 is arranged on a propeller hub 5, the pitch adjusting spur gear 18 is connected with a motor shaft of the servo motor 17 through the reduction gearbox 21, a groove is formed in the end face of the root of a propeller blade 3 along the axial direction, the hub internal gear 19 is arranged in the groove, the pitch adjusting spur gear 18 is meshed with the hub internal gear 19, and the pitch angle encoder 20 is arranged on the motor shaft of the servo motor 17 and used for motor corner feedback.
The invention combines a plurality of mechanisms together to realize the functions of lifting, adjusting, and the like of the double propellers, and a system power supply supplies power to the two permanent magnet motors respectively to drive the propellers to rotate. The stepping motor is started, the rotary pinion is rotated through gear engagement, and the gear transmission has the advantages of reliable transmission motion and constant instantaneous transmission ratio; the applicable load and speed ranges are large. High service efficiency, long service life and compact structure. When the hydraulic cylinder works, the piston rod of the hydraulic cylinder makes reciprocating linear motion, and various elements of hydraulic transmission can be conveniently and flexibly arranged according to the needs. Light weight, small volume, small motion inertia and high reaction speed.
The invention can provide enough thrust for large ships to navigate and improve the coping ability in extreme environments, and common working modes are as follows:
1. during normal operation, the front and rear propellers are mutually independent and rotate in the same direction to provide forward power or reverse thrust. The pitch angle is changed along with the change of the flow velocity, so that the change of the flow velocity is self-adaptive, and the kinetic energy of water is utilized to the greatest extent.
2. When braking is needed, the front propeller rotates reversely, and the rear propeller can be used as a generator; when emergency braking is needed, the front propeller and the rear propeller are reversed, and all provide reverse thrust, so that the ship can rapidly stop advancing. Meanwhile, the double propellers can generate electricity and provide energy.
3. When encountering heavy wind and waves, the hydraulic cylinder starts to work. Through the real-time gesture of boats and ships, the flexible of four pneumatic cylinder piston rods can guarantee that the propeller is horizontal all the time to make the thrust of boats and ships direct forward, faster, safer through crest, trough.
4. When encountering the ice breaking working condition, the front propeller breaks ice, the rear propeller provides power, and simultaneously, the pitch angle of the front propeller is adjusted to better cut the ice layer and prevent the blades from being damaged, and the pitch angle of the rear propeller is small, so that the power can be better provided, and the ice breaking speed is accelerated.
The pod propeller performs the specific operation of the relevant functions: when the system power supply is connected to the two permanent magnet motors from the through holes on the left cabin bracket and the right cabin bracket respectively, the propellers start to rotate, independent control of the front propellers and the rear propellers can be realized, and when one of the propellers cannot work normally, the operation of the other propeller is not influenced, so that the reliability of the system is greatly improved. When the propeller rotates, in order to adapt to different flow rates, the rotation angle of the motor is fed back through the pitch angle encoder, power is transmitted through the servo motor and the reduction gearbox, and the pitch adjusting spur gear is meshed with the hub internal gear to complete pitch adjusting work. Referring to fig. 3, after the stepping motor is powered on, since the rotation spur gear is fixed on the transmission shaft and is externally meshed with the rotation pinion, the rotation pinion and the rotation spur gear rotate, and the rotation direction is opposite. Referring to fig. 1, the whole lifting device is arranged on the rotation pinion, and the whole lifting device is driven to rotate together during rotation, and the left cabin support and the right cabin support are connected with the hydraulic top plate, so that the full rotation of the nacelle propeller can be realized. It is particularly noted that since the hydraulic cylinder is connected to the hydraulic ram by means of a ball joint, the expansion and contraction speed of the hydraulic cylinder piston rod can be adjusted by means of motion compensation. The purpose of this is that the pod propulsion can still be kept relatively horizontal when the ship as a whole is tilted, so that sailing is safer and more reliable.

Claims (10)

1. A multifunctional independent double-propeller type nacelle propeller is characterized in that: including elevating gear, slewer, transfer oar device, independent control propeller subassembly, slewer installs in deck (1) upper surface, elevating gear installs on slewer, elevating gear is including setting up in hydraulic ram (13) at its top, independent control propeller subassembly passes deck (1) in proper order from the lower direction of deck (1), slewer, elevating gear and is fixed with the bottom of hydraulic ram (13), independent control propeller subassembly includes two mutually independent propeller bodies, screw interval on two propeller bodies sets up in opposite directions, and install respectively on screw paddle (3) of every screw and transfer oar device.
2. A multi-functional independent twin-screw pod thruster according to claim 1, wherein: the lifting device further comprises a hydraulic bottom plate (9), a hydraulic cylinder and a spherical universal joint (14), wherein the hydraulic bottom plate (9) is fixed with the rotating device, a hydraulic top plate (13) is arranged above the hydraulic bottom plate (9) at intervals, the hydraulic bottom plate and the hydraulic top plate are connected through a plurality of hydraulic cylinders arranged at intervals, a hydraulic cylinder barrel (10) of the hydraulic cylinder is fixed with the upper surface of the hydraulic bottom plate (9), a hydraulic cylinder piston rod (11) is fixed on a hydraulic cylinder piston (12), and the hydraulic bottom plate is connected with the lower bottom surface of the hydraulic top plate (13) through the spherical universal joint (14).
3. A multi-functional independent twin-screw pod thruster according to claim 2, characterized by: the number of the hydraulic cylinders is 4, the hydraulic cylinders are respectively vertically arranged, and the connecting lines of the hydraulic cylinders and the hydraulic cylinders are arranged at intervals in a rectangular shape.
4. A multi-functional independent twin-screw pod thruster according to claim 1, wherein: the rotary device comprises a rotary spur gear (2), a shaft barrel (7), a rotary pinion (8), a stepping motor (15) and a motor fixing piece (16), wherein the rotary pinion (8) is rotatably arranged on the upper surface of the deck (1) through the shaft barrel (7), the lifting device is arranged on the rotary pinion (8), the stepping motor (15) is arranged on the deck (1) through the motor fixing piece (16), and the rotary spur gear (2) is connected with the stepping motor (15) and meshed with the rotary pinion (8), and the independent control propeller assembly is arranged in the shaft barrel (7) in a penetrating mode.
5. A multi-functional independent twin-screw pod thruster according to claim 1, wherein: the independent control propeller assembly further comprises a left cabin body support (4) and a right cabin body support (27), the left cabin body support (4) and the right cabin body support (27) are vertically arranged side by side, the upper parts of the left cabin body support (4) and the right cabin body support (27) are respectively fixed with the bottom of the hydraulic top plate (13), and a propeller body is respectively arranged at the lower parts of the left cabin body support and the right cabin body support.
6. A multi-functional independent twin-screw pod thruster according to claim 1 or 5, characterized by: the propeller body further comprises a permanent magnet motor, a permanent magnet motor bearing (24) and a permanent magnet motor front end cover (25), wherein the permanent magnet motor front end cover (25) is arranged at the front part of the permanent magnet motor through the permanent magnet motor bearing (24), and a permanent magnet motor rotor (23) of the permanent magnet motor penetrates out of the permanent magnet motor front end cover (25) and is connected with the propeller.
7. A multi-functional independent twin-screw pod thruster according to claim 6, wherein: the propeller further comprises a propeller hub (5) and a fairing (6), a plurality of propeller blades (3) are installed in circumferential rotation of the propeller hub (5), the angle of each propeller blade (3) is adjusted through a propeller adjusting device, and the fairing (6) is installed at the front end of the propeller hub (5).
8. A multi-functional independent twin-screw pod thruster according to claim 7, wherein: the pitch adjusting device comprises a servo motor (17), a pitch adjusting spur gear (18), a hub internal gear (19) and a reduction gearbox (21), wherein the servo motor (17) is arranged on a propeller hub (5), the pitch adjusting spur gear (18) is connected with a motor shaft of the servo motor (17) through the reduction gearbox (21), a groove is formed in the end face of the root of a propeller blade (3) along the axial direction, the hub internal gear (19) is arranged in the groove, and the pitch adjusting spur gear (18) is meshed with the hub internal gear (19).
9. A multi-functional independent twin-screw pod thruster according to claim 8, wherein: the pitch adjusting device further comprises a pitch angle encoder (20), and the pitch angle encoder (20) is arranged on a motor shaft of the servo motor (17) and used for motor rotation angle feedback.
10. A multifunctional independent double-propeller pod thruster according to any of claims 1, 7-9, characterized by: the number of propeller blades (3) on each propeller is 4.
CN202310535636.5A 2023-05-12 2023-05-12 Multifunctional independent double-propeller type nacelle propeller Pending CN116534230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310535636.5A CN116534230A (en) 2023-05-12 2023-05-12 Multifunctional independent double-propeller type nacelle propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310535636.5A CN116534230A (en) 2023-05-12 2023-05-12 Multifunctional independent double-propeller type nacelle propeller

Publications (1)

Publication Number Publication Date
CN116534230A true CN116534230A (en) 2023-08-04

Family

ID=87453874

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310535636.5A Pending CN116534230A (en) 2023-05-12 2023-05-12 Multifunctional independent double-propeller type nacelle propeller

Country Status (1)

Country Link
CN (1) CN116534230A (en)

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