Gearless propelling device suitable for ship in ice area

Abstract

The invention discloses a gearless propulsion device suitable for a ship in an ice region, which comprises a main bracket for supporting and connecting; the propelling assembly is used for providing propelling force; the steering assembly is used for providing adjustment of the propelling direction; when the ship sails, the propelling assembly is used for propelling the ship to sail, and when the direction needs to be adjusted, the steering assembly is used for adjusting the direction. According to the device, the energy loss in the transmission process is reduced by canceling a gear box and shortening the shafting length, so that the propulsive efficiency is improved. The multi-stage connecting rod is adopted for power transfer, small torque and high rotating speed output by the steering motor can be converted into motion with large torque and low rotating speed needed for driving the large rudder blade, power transfer is more direct and efficient, ships or equipment can obtain better power performance, the device is suitable for low-speed operation of the ships in the ice area, and the service life of the ship is prolonged. The gearless design eliminates gear meshing noise and vibration, reduces tip vortex cavitation bubbles and turbulence noise, and meets the requirement of a high-silence scene.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship propulsion, and in particular relates to a gearless propulsion device suitable for ships in ice areas. Background Art

[0002] As the core system of a ship's navigation, the performance of its propulsion machinery directly determines key indicators such as speed, load capacity, and fuel economy. Currently, propulsion systems based on high-efficiency diesel engines and gas turbines paired with propellers are widely used in modern shipping. However, traditional marine propulsion machinery still faces significant technical bottlenecks.

[0003] First, the traditional long-shaft propulsion structure has a large shaft length and many transmission links, resulting in serious energy loss during the mechanical transmission process, which reduces the overall transmission efficiency of the system; second, the propulsion device based on gear transmission has problems with excessive meshing noise and vibration, which not only accelerates equipment wear and shortens its service life, but also seriously affects the stability of ship operation; third, the tip vortex cavitation and turbulent noise generated during operation make it difficult for traditional propulsion systems to meet the application scenarios with strict requirements on quiet performance such as submarines and high-end tourist ships. In addition, when dealing with complex sea conditions (such as polar ice areas), traditional propulsion machinery has weak ice load resistance, which can easily cause equipment failure and limit the navigation range and operation capabilities of ships. Therefore, there is an urgent need to develop new propulsion technologies to break through the above technical bottlenecks. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the existing technology and provide a gearless propulsion device suitable for ships in ice areas, which can reduce energy loss during the transmission process, thereby improving propulsion efficiency and at the same time improving the impact resistance of the propulsion system.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A gearless propulsion device suitable for ships in ice areas, comprising:

[0007] Main support;

[0008] A propulsion assembly, used to provide propulsion force, the propulsion assembly includes a connecting frame and a propulsion member, the connecting frame is arranged at the lower end of the main support, and the propulsion member is arranged at the lower end of the connecting frame;

[0009] The steering assembly is used to provide adjustment of the propulsion direction. The steering assembly includes a steering motor, a connecting part and a steering part. The steering motor is transmission-connected to the connecting part, and the connecting part is rotationally connected to the steering part. The steering part is arranged at the upper end of the main bracket. The steering part can be driven by the steering motor to reciprocate within a set angle range.

[0010] To optimize the above technical solutions, specific measures taken also include:

[0011] Furthermore, the main bracket is arranged vertically, and a cross beam is arranged horizontally at the lower end of the main bracket. The cross beam is detachably connected to the vertically arranged connecting frame. The connecting frame includes a fixed block and a support rod. The fixed block is detachably arranged on the lower surface of the cross beam away from the end of the main bracket. The support rod is arranged at the lower end of the fixed block. The lower end of the support rod is connected to the propulsion member, and a locking member is arranged between the fixed block and the cross beam.

[0012] Furthermore, a clamping block is provided on the crossbeam, a clamping slot is provided on the fixing block, and the clamping slot is clamped in the clamping block.

[0013] Furthermore, the locking members include two, and the two locking members are symmetrically arranged. Each of the locking members includes an upper locking block, a lower locking block and a locking ring. The upper locking block is arranged on the side of the beam close to the fixed block, and the lower locking block is arranged on the side of the fixed block close to the beam. The upper locking block and the lower locking block fit together to form a cylindrical structure, and the locking ring is rotatably arranged on the upper locking block and the lower locking block.

[0014] Furthermore, the side of the upper locking block away from the cross beam and the side of the lower locking block away from the fixed block are both provided with arc-shaped protrusions, and the two arc-shaped protrusions are combined to form a positioning ring, and a locking groove is provided on the side wall of the arc-shaped protrusion. The side of the locking ring close to the arc-shaped protrusion is provided with multiple circumferentially spaced connecting blocks, and the multiple connecting blocks can be inserted into the locking groove. The inner side wall of the locking ring is rotatably engaged on the outer side wall of the arc-shaped protrusion, and part of the structure of the connecting block can rest against the side wall of the arc-shaped protrusion.

[0015] Furthermore, a plurality of limiting blocks arranged at circumferential intervals are provided on the side wall of the arc-shaped protrusion, the limiting blocks and the connecting blocks are staggered, and each connecting block can be magnetically attracted to an adjacent limiting block.

[0016] Furthermore, the propulsion member includes a fixed frame, a rotating frame, a stator member, a rotor member and blades, the fixed frame and the rotating frame are both hollow cylindrical structures, the fixed frame and the rotating frame are coaxially stacked from outside to inside, the fixed frame is arranged at the lower end of the support rod, and a rotating bearing is arranged between the rotating frame and the fixed frame, the stator member is arranged on the inner side wall of the fixed frame close to the rotating frame, and the rotor member is arranged on the outer side wall of the rotating frame close to the fixed frame.

[0017] Furthermore, the rotating bearings are arranged on both sides of the fixed frame, the stator component and the rotor component are distributed between the rotating bearings on both sides, the stator component is electrically connected to the storage module, the stator component adopts a coil group, the rotor adopts an annular permanent magnet, and the storage module is arranged at the lower end of the main bracket.

[0018] Furthermore, the connecting member includes a first connecting rod, a second connecting rod and a third connecting rod arranged horizontally, the lower end of one side of the first connecting rod is transmission-connected to the output end of the steering motor, the upper end of the first connecting rod on the side away from the steering motor is rotationally connected to the lower end of one side of the second connecting rod, the upper end of the second connecting rod on the side away from the first connecting rod is rotationally connected to the third connecting rod, and the lower end of the third connecting rod on the side away from the second connecting rod is transmission-connected to the steering member.

[0019] Furthermore, the steering component includes an active connecting rod, a coupling, a driven connecting rod, and a steering stabilizer block. The upper end of the active connecting rod is arranged on the lower surface of the third connecting rod, the lower end of the active connecting rod is arranged on the coupling, the upper end of the driven connecting rod is arranged in the coupling, the lower end of the driven connecting rod is arranged on the main bracket, one end of the steering stabilizer block is sleeved on the coupling, the other end of the steering stabilizer is provided with a support plate, and the steering motor is arranged on the support plate.

[0020] Beneficial effects of the present invention:

[0021] This application describes a gearless propulsion device suitable for vessels operating in ice-covered areas. By eliminating a gearbox and shortening the shafting, it reduces energy loss during transmission, thereby improving propulsion efficiency. The use of a multi-stage connecting rod for power transmission converts the relatively low torque and high speed output of the steering motor into the high torque and low speed required to drive the large rudder blades. This makes power transmission more direct and efficient, helping vessels or equipment achieve better power performance and is suitable for low-speed operation in ice-covered areas. The gearless design eliminates gear meshing noise and vibration, while also reducing tip vortex cavitation and turbulent noise, meeting high-speed requirements for quiet operation.

[0022] This application uses a stator and rotor to form a shaftless propeller, which uses the principle of a permanent magnet motor to generate propulsion, eliminating the traditional shafting and hub, greatly reducing the overall weight and making the structure more compact. At the same time, the device adopts a modular structural design, which can achieve rapid maintenance and component replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of the storage cavity;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the middle propulsion member;

[0026] Figure 4 for Figure 3Schematic diagram of the structural relationship between the rotor and stator parts;

[0027] Figure 5 for Figure 3 Schematic diagram of the coordination relationship between the middle fixed block and the crossbeam;

[0028] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the middle crossbeam and fixed block;

[0029] Figure 7 for Figure 5 A schematic diagram of the structure of the locking member;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the steering component.

[0031] The accompanying drawings are marked as follows: main bracket 10, cross beam 11, card block 12, connecting frame 20, fixed block 21, support rod 22, card slot 23, propulsion member 30, fixed frame 31, rotating frame 32, stator member 33, rotor member 34, blade 35, rotating bearing 36, locking member 40, upper locking block 41, lower locking block 42, locking ring 43, arc-shaped protrusion 44, locking groove 45, connecting block 46, limit block 47, storage cavity 50, storage module 51, mounting plate 52, sealing ring 53, steering motor 60, connecting member 70, first connecting rod 71, second connecting rod 72, third connecting rod 73, steering member 80, active connecting rod 81, coupling 82, driven connecting rod 83, steering stabilizing block 84, support plate 85. DETAILED DESCRIPTION

[0032] In order to illustrate the technical solution and working principle of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] See also Figures 1-8 As shown, a gearless propulsion device suitable for ships in ice areas includes a main bracket 10, which plays a supporting and connecting role; a propulsion component, which is used to provide propulsion force; and a steering component, which is used to adjust the propulsion direction. When the ship is sailing, the propulsion component is used to propel the ship, and when the direction needs to be adjusted, the steering component is used to adjust the direction. The steering component and the propulsion component are independent of each other and can be operated separately or simultaneously.

[0034] The main support 10 is vertically arranged, and a crossbeam 11 is horizontally arranged at the lower end of the main support 10 .

[0035] The propulsion assembly includes a connecting frame 20 and a propulsion member 30. The connecting frame 20 is arranged at the lower end of the main bracket 10, and the propulsion member 30 is arranged at the lower end of the connecting frame 20. The crossbeam 11 is detachably connected to the vertically arranged connecting frame 20.

[0036] The connecting frame 20 includes a fixed block 21 and a support rod 22. The fixed block 21 is detachably mounted on the lower surface of the end of the beam 11 away from the main bracket 10. The support rod 22 is disposed at the lower end of the fixed block 21. The lower end of the support rod 22 is connected to the pusher 30. A locking member 40 is disposed between the fixed block 21 and the beam 11. The detachable connection between the fixed block 21 and the beam 11 realizes a modular design, and the pusher 30 of the corresponding size and model can be selected for replacement and installation as needed, which also facilitates inspection and maintenance. A plurality of circumferentially distributed clamping blocks 12 are disposed on the beam 11, and a plurality of slots 23 are provided on the fixed block 21. The slots 23 are engaged with the clamping blocks 12.

[0037] The purpose of setting the locking piece 40 is to improve the connection stability between the fixed block 21 and the beam 11. The locking piece 40 includes two, and the two locking pieces 40 are symmetrically arranged. Each locking piece 40 includes an upper locking block 41, a lower locking block 42 and a locking ring 43. The upper locking block 41 is arranged on the side of the beam 11 close to the fixed block 21, and the lower locking block 42 is arranged on the side of the fixed block 21 close to the beam 11. The upper locking block 41 and the lower locking block 42 fit together to form a cylindrical structure, and the locking ring 43 is rotatably arranged on the upper locking block 41 and the lower locking block 42. An arcuate protrusion 44 is provided on the side of the upper locking block 41 away from the crossbeam 11, and on the side of the lower locking block 42 away from the fixed block 21. The two arcuate protrusions 44 combine to form a positioning ring. A locking groove 45 is provided on the side wall of each arcuate protrusion 44. A plurality of circumferentially spaced connecting blocks 46 are provided on the side of the locking ring 43 near the arcuate protrusion 44. The connecting blocks 46 can be inserted into the locking grooves 45. The inner side wall of the locking ring 43 is rotatably engaged with the outer side wall of the arcuate protrusion 44, and part of the structure of the connecting blocks 46 can abut against the side wall of the arcuate protrusion 44. A plurality of circumferentially spaced limiting blocks 47 are also provided on the side wall of the arcuate protrusion 44. The limiting blocks 47 and the connecting blocks 46 are staggered, and each connecting block 46 can be magnetically attracted to an adjacent limiting block 47. The staggered limit blocks 47 and connecting blocks 46 can ensure that the connecting block 46 can only move between two adjacent limit blocks 47, avoiding excessive rotation angles, and eventually the connecting block 46 passes through the locking groove 45 again. At the same time, the magnetic attraction between the limit blocks 47 and the connecting blocks 46 can ensure that the locking ring 43 maintains the stability of the locking ring 43 after locking the upper locking block 41 and the lower locking block 42, avoiding the phenomenon of the locking ring 43 rotating due to abnormal impact force.

[0038] The two locking members 40 are independent of each other and locked separately. When the fixing block 21 needs to be separated from the crossbeam 11, both locking members 40 need to be unlocked before separation. The locking principle of the locking members 40 is as follows:

[0039] First, insert the fixing block 21 into the crossbeam 11 so that the upper locking block 41 and the lower locking block 42 fit together to form a cylindrical structure. After the corresponding curved protrusions 44 of the two locking blocks are spliced ​​to form a positioning ring, the locking ring 43 is then clamped onto the positioning ring so that the connecting block 46 on the locking ring 43 passes through the locking groove 45 on the curved protrusion 44. Then, rotate the locking ring 43 so that the connecting ring and the limit block 47 on the curved mutation are magnetically attracted to each other, thereby achieving the positioning of the locking ring 43 and locking and fixing the upper locking block 41 and the lower locking block 42. When unlocking is required, simply rotate the locking ring 43 in the opposite direction and then pass the connecting block 46 of the locking ring 43 through the locking groove 45.

[0040] The propulsion member 30 includes a fixed frame 31, a rotating frame 32, a stator member 33, a rotor member 34, and blades 35. The fixed frame 31 and the rotating frame 32 are both hollow cylindrical structures. The fixed frame 31 and the rotating frame 32 are coaxially stacked from the outside to the inside. The fixed frame 31 is set at the lower end of the support rod 22. A rotating bearing 36 is set between the rotating frame 32 and the fixed frame 31. The stator member 33 is set on the inner wall of the fixed frame 31 near the rotating frame 32, and the rotor member 34 is set on the outer wall of the rotating frame 32 near the fixed frame 31. The rotating bearings 36 are set on both sides of the fixed frame 31. The stator member 33 and the rotor member 34 are distributed between the rotating bearings 36 on both sides. The stator member 33 is electrically connected to the storage module 51. The stator member 33 uses a coil group, and the rotor uses an annular permanent magnet.

[0041] The working principle of the propulsion member 30 is as follows: when power is supplied to the stator member 33, a magnetic field is generated, which then drives the rotor member 34 to rotate. During the rotation process, the rotor member 34 drives the rotating frame 32 to rotate, and then the rotating frame 32 drives the internal blades to rotate, ultimately realizing the propulsion process.

[0042] A storage module 51 is mounted at the lower end of the main support 10. A storage cavity 50 is disposed outside the storage module 51, with the upper end of the storage cavity 50 disposed at the lower end of the main support 10. A mounting opening is provided on the sidewall of the storage cavity 50, and a detachable mounting plate 52 is mounted on the mounting opening. A sealing ring 53 is disposed between the mounting plate 52 and the mounting opening. The mounting plate 52 is connected to the side of the storage cavity 50 where the mounting opening is provided by bolts.

[0043] The steering assembly includes a steering motor 60, a connecting member 70 and a steering member 80. The steering motor 60 is transmission-connected to the connecting member 70, and the connecting member 70 is rotationally connected to the steering member 80. The steering member 80 is arranged at the upper end of the main bracket 10. The steering member 80 can be driven by the steering motor 60 to rotate back and forth within a set angle range.

[0044] The connecting member 70 includes a first connecting rod 71, a second connecting rod 72, and a third connecting rod 73 arranged horizontally. The lower end of the first connecting rod 71 is drivingly connected to the output end of the steering motor 60. The upper end of the first connecting rod 71 on the side away from the steering motor 60 is rotationally connected to the lower end of the second connecting rod 72. The upper end of the second connecting rod 72 on the side away from the first connecting rod 71 is rotationally connected to the third connecting rod 73. The lower end of the third connecting rod 73 on the side away from the second connecting rod 72 is drivingly connected to the steering member 80. It can be understood that the multiple connecting rods form a multi-stage transmission method distributed vertically, which can effectively alleviate the impact force during the operation of the ship and maintain the reliability of the power transmission.

[0045] The steering assembly 80 includes an active link 81, a coupling 82, a passive link 83, and a steering stabilizer 84. The upper end of the active link 81 is mounted on the lower surface of the third link 73, and the lower end of the active link 81 is mounted on the coupling 82. The upper end of the passive link 83 is mounted within the coupling 82, and the lower end of the passive link 83 is mounted on the main support 10. One end of the steering stabilizer 84 is sleeved on the coupling 82, and the other end of the steering stabilizer 84 is provided with a support plate 85, on which the steering motor 60 is mounted. The coupling 82 transmits power from the active link 81 to the passive link 83, ensuring stable power transmission. The steering stabilizer 84 also ensures that the coupling 82 remains stable during power transmission, preventing lateral displacement. The steering stabilizer 84 also provides support for the steering motor 60. In practical applications, the steering stabilizer 84 can be connected to a mounting platform on a vessel.

[0046] The working principle of the gearless propulsion device of the present invention is:

[0047] When the ship needs propulsion when starting, the storage module 51 is used to power the stator 33, and then under the action of the magnetic field, the rotor 34 drives the rotating frame 32 to rotate, and then drives the blades inside the rotating frame 32 to rotate, generating propulsion.

[0048] When the direction of the ship needs to be adjusted during navigation: start the steering motor 60, and use the steering motor 60 to drive the first connecting rod 71, the second connecting rod 72, and the third connecting rod 73 to rotate in sequence, and finally drive the active connecting rod 81 to rotate horizontally, and transmit the driving force to the driven connecting rod 83 through the coupling 82, and finally drive the main bracket 10 to rotate horizontally to achieve direction adjustment.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0050] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of this application. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of this application should be considered within the scope of protection of this application.

Claims

1. A gearless propulsion device suitable for ships in ice regions, characterized by: include, Main support; A propulsion assembly, used to provide propulsion force, the propulsion assembly includes a connecting frame and a propulsion member, the connecting frame is arranged at the lower end of the main support, and the propulsion member is arranged at the lower end of the connecting frame; The steering assembly is used to provide adjustment of the propulsion direction. The steering assembly includes a steering motor, a connecting part and a steering part. The steering motor is transmission-connected to the connecting part, and the connecting part is rotationally connected to the steering part. The steering part is arranged at the upper end of the main bracket. The steering part can be driven by the steering motor to reciprocate within a set angle range.

2. The gearless propulsion device suitable for ships in ice regions according to claim 1, characterized in that: The main bracket is arranged vertically, and a cross beam is arranged horizontally at the lower end of the main bracket. The cross beam is detachably connected to the vertically arranged connecting frame. The connecting frame includes a fixed block and a support rod. The fixed block is detachably arranged on the lower surface of the cross beam away from the end of the main bracket. The support rod is arranged at the lower end of the fixed block. The lower end of the support rod is connected to the propulsion member, and a locking member is arranged between the fixed block and the cross beam.

3. The gearless propulsion device suitable for ships in ice regions according to claim 2, characterized in that: A clamping block is provided on the crossbeam, and a clamping slot is provided on the fixing block. The clamping slot is clamped in the clamping block.

4. The gearless propulsion device suitable for ships in ice regions according to claim 2, characterized in that: The locking pieces include two, which are symmetrically arranged. Each of the locking pieces includes an upper locking block, a lower locking block and a locking ring. The upper locking block is arranged on the side of the beam close to the fixed block, and the lower locking block is arranged on the side of the fixed block close to the beam. The upper locking block and the lower locking block fit together to form a cylindrical structure, and the locking ring is rotatably arranged on the upper locking block and the lower locking block.

5. The gearless propulsion device suitable for ships in ice regions according to claim 4, characterized in that: The upper locking block is provided with a side away from the cross beam, and the lower locking block is provided with a side away from the fixed block. The two arcuate protrusions are combined to form a positioning ring. A locking groove is provided on the side wall of each arcuate protrusion. The locking ring is provided with a plurality of circumferentially spaced connecting blocks on the side close to the arcuate protrusion. The plurality of connecting blocks can be inserted into the locking groove. The inner side wall of the locking ring is rotatably engaged with the outer side wall of the arcuate protrusion, and part of the structure of the connecting block can rest against the side wall of the arcuate protrusion.

6. The gearless propulsion device for ships in ice regions according to claim 5, characterized in that: A plurality of circumferentially spaced limiting blocks are further provided on the side walls of the arc-shaped protrusions. The limiting blocks and the connecting blocks are staggered in distribution, and each connecting block can be magnetically attracted to an adjacent limiting block.

7. The gearless propulsion device suitable for ships in ice regions according to claim 2, characterized in that: The propulsion member includes a fixed frame, a rotating frame, a stator member, a rotor member and blades. The fixed frame and the rotating frame are both hollow cylindrical structures. The fixed frame and the rotating frame are coaxially stacked from outside to inside. The fixed frame is arranged at the lower end of the support rod. A rotating bearing is arranged between the rotating frame and the fixed frame. The stator member is arranged on the inner side wall of the fixed frame close to the rotating frame, and the rotor member is arranged on the outer side wall of the rotating frame close to the fixed frame.

8. The gearless propulsion device for ships in ice regions according to claim 7, characterized in that: The rotating bearings are arranged on both sides of the fixed frame, and the stator component and the rotor component are distributed between the rotating bearings on both sides. The stator component is electrically connected to the storage module. The stator component adopts a coil group, and the rotor adopts an annular permanent magnet. The storage module is arranged at the lower end of the main bracket.

9. The gearless propulsion device suitable for ships in ice regions according to claim 5, characterized in that: The connecting member includes a first connecting rod, a second connecting rod and a third connecting rod arranged horizontally. The lower end of one side of the first connecting rod is transmission-connected to the output end of the steering motor. The upper end of the first connecting rod on the side away from the steering motor is rotationally connected to the lower end of one side of the second connecting rod. The upper end of the second connecting rod on the side away from the first connecting rod is rotationally connected to the third connecting rod. The lower end of the third connecting rod on the side away from the second connecting rod is transmission-connected to the steering member.

10. The gearless propulsion device suitable for ships in ice regions according to claim 1, characterized in that: The steering component includes an active connecting rod, a coupling, a driven connecting rod, and a steering stabilizer block. The upper end of the active connecting rod is arranged on the lower surface of the third connecting rod, the lower end of the active connecting rod is arranged on the coupling, the upper end of the driven connecting rod is arranged in the coupling, the lower end of the driven connecting rod is arranged on the main bracket, one end of the steering stabilizer block is sleeved on the coupling, the other end of the steering stabilizer is provided with a support plate, and the steering motor is arranged on the support plate.

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