A wind-assisted propulsion device

Abstract

The present invention relates to the field of ship technology, and discloses a wind-assisted propulsion device, comprising an outer cylinder capable of rotating around its own axis and an inner tower, a turntable and a main shaft arranged therein, wherein the lower end of the main shaft extends into the inner tower and is rotationally connected to the inner tower, and the upper end thereof is connected to the outer cylinder through the turntable; it also comprises a plurality of auxiliary support assemblies, which are arranged between the cover plate at the top of the inner tower and the turntable, and are distributed along the circumference of the main shaft, wherein one end of each auxiliary support assembly is connected to one of the cover plate at the top of the inner tower and the turntable, and the other end is rollingly connected to the other. The present invention supports the turntable through a plurality of auxiliary support assemblies to withstand the lateral forces in all directions during the rotation of the outer cylinder, ensure the stability during the rotation of the outer cylinder, thereby reducing the shaking of the outer cylinder, avoiding the main shaft from generating a large alternating load, and extending the service life of the main shaft; at the same time, the auxiliary support assembly is rollingly connected to the turntable or the cover plate at the top of the inner tower, which will not increase the moment of inertia, and thus will not increase the energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a wind-assisted propulsion device. Background Art

[0002] Wind thrusters are mainly used on ships. They include a rotor, a main shaft and an outer cylinder that rotate together. The outer cylinder is large in size and has a high linear speed, which can easily generate alternating loads between the outer cylinder and the main shaft. Therefore, when the rotor rotates, the stability of the outer cylinder is required to be high.

[0003] In harsh marine environments, the hull will produce large roll and pitch during the operation of the ship, which will cause the outer cylinder to shake, which may cause the turntable to be eccentric, resulting in a large alternating load on the main shaft where the turntable is located, thereby reducing the service life of the main shaft and increasing maintenance costs. Summary of the invention

[0004] The purpose of the present invention is to provide a wind-assisted propulsion device, which can reduce the shaking of the outer cylinder, extend the service life of the main shaft and reduce the maintenance cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A wind booster device, comprising an outer cylinder capable of rotating around its own axis, an inner tower, a turntable and a main shaft arranged therein, wherein the lower end of the main shaft extends into the inner tower and is rotatably connected to the inner tower, and the upper end of the main shaft is connected to the outer cylinder through the turntable; and further comprising:

[0007] A plurality of auxiliary support assemblies are arranged between the cover plate at the top of the inner tower and the turntable and distributed along the circumference of the main shaft. One end of each of the auxiliary support assemblies is connected to the cover plate at the top of the inner tower and one of the turntables, and the other end can be connected to the other in a rolling manner.

[0008] As a preferred technical solution of the above-mentioned wind booster device, the auxiliary support assembly includes:

[0009] A bracket, on which a roller is provided which is rotatably connected to the bracket and can contact the rotating disk;

[0010] A connecting shaft has one end connected to the bracket and the other end extending into the sleeve and rotatably connected to the sleeve, and the sleeve is connected to the cover plate.

[0011] As a preferred technical solution of the above-mentioned wind boosting device, a mounting seat is provided at the bottom of the sleeve, and the mounting seat is connected to the cover plate through a plurality of circumferentially arranged fasteners.

[0012] As a preferred technical solution of the above-mentioned wind booster device, a first step surface pointing to the cover plate is provided in the sleeve, and the connecting shaft can move axially relative to the sleeve;

[0013] It also includes a first elastic member sleeved outside the connecting shaft and a limiting member connected to the lower end of the connecting shaft, and the first elastic member is clamped between the first step surface and the limiting member.

[0014] As a preferred technical solution of the above-mentioned wind-assisted propulsion device, the limiting member is a nut threadedly connected to the connecting shaft.

[0015] As a preferred technical solution of the above-mentioned wind-assisted boosting device, a second step surface pointing to the roller is provided in the sleeve, an upper end cover is provided on the top of the sleeve, and a second elastic member is sandwiched between the upper end cover and the second step surface.

[0016] As a preferred technical solution of the above-mentioned wind boosting device, it also includes a bearing which is sleeved outside the connecting shaft and arranged inside the sleeve, so that the connecting shaft is rotatably connected to the sleeve.

[0017] As a preferred technical solution of the above-mentioned wind-assisted propulsion device, two bearings are provided, and the two bearings are arranged at both ends of the sleeve.

[0018] As a preferred technical solution of the above-mentioned wind-powered boosting device, the bearing is a thrust bearing.

[0019] As a preferred technical solution of the above-mentioned wind-assisted propulsion device, an annular guide track is provided on the turntable, and the top of the roller is placed in the annular guide track.

[0020] Beneficial effects of the present invention: In the wind-boosting device provided by the present invention, during the rotation of the outer cylinder, the auxiliary support assembly will contact the turntable, and the turntable will be supported by multiple auxiliary support assemblies to withstand lateral forces in all directions during the rotation of the outer cylinder, thereby ensuring the stability of the outer cylinder during rotation, thereby reducing the shaking of the outer cylinder, avoiding large alternating loads on the main shaft, extending the service life of the main shaft, and reducing maintenance costs; at the same time, since the auxiliary support assembly is rollingly connected to the turntable or the cover plate on the top of the inner tower, it will not increase the moment of inertia, and thus will not increase energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 is a schematic structural diagram of a wind-assisted propulsion device provided in an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of an auxiliary support assembly provided by an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of an auxiliary support assembly provided in an embodiment of the present invention.

[0025] In the figure:

[0026] 1. Outer cylinder; 2. Inner tower; 21. Cover plate; 3. Main shaft; 4. Turntable; 5. Connecting frame;

[0027] 6. Auxiliary support assembly; 61. Roller; 62. Bracket; 63. Connecting shaft; 641. Sleeve; 642. Upper end cover; 643. Mounting seat; 65. First elastic member; 66. Second elastic member; 67. Limiting member; 68. Bearing. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0029] like Figure 1 As shown, this embodiment provides a wind-assisted propulsion device, which is applied to ships. The wind-assisted propulsion device includes an outer cylinder 1 that can rotate around its own axis and an inner tower 2, a turntable 4 and a main shaft 3 arranged therein. The turntable 4 is located above the cover plate 21 on the top of the inner tower 2. The lower end of the main shaft 3 extends into the inner tower 2 and is rotatably connected to the inner tower 2. The upper end of the main shaft 3 is connected to the outer cylinder 1 through the turntable 4. Among them, a connecting frame 5 connected to the turntable 4 is provided above the turntable 4. The upper end of the main shaft 3 passes through the turntable 4 and is connected to the connecting frame 5. The turntable 4 is fixedly connected to the main shaft 3 and is fixedly connected to the outer cylinder 1 through a flange. The rotation of the main shaft 3 will drive the turntable 4 and the outer cylinder 1 to rotate synchronously relative to the inner tower 2.

[0030] As the ship is running, during the operation of the above-mentioned wind-assisted propulsion device, the outer cylinder 1 shakes, causing the turntable 4 to be eccentric, resulting in a large alternating load on the main shaft 3 where the turntable 4 is located. To this end, the wind-assisted propulsion device provided in this embodiment also includes a plurality of auxiliary support assemblies 6, and the plurality of auxiliary support assemblies 6 are all arranged between the cover plate 21 at the top of the inner tower 2 and the turntable 4, and are distributed along the circumference of the main shaft 3, and one end of each auxiliary support assembly 6 is connected to the cover plate 21 at the top of the inner tower 2 and one of the turntable 4, and the other end can be connected to the other in a rolling manner. Preferably, the lower end of each auxiliary support assembly 6 is connected to the cover plate 21 at the top of the inner tower 2, and the upper end thereof is connected to the turntable 4 in a rolling manner. This arrangement can eliminate the balance problem caused by manufacturing and assembly errors.

[0031] This embodiment takes the arrangement of eight auxiliary support assemblies 6 as an example, and the eight auxiliary support assemblies 6 are evenly distributed along the circumference of the main shaft 3. In the wind booster device provided by this embodiment, during the rotation of the outer cylinder 1, the auxiliary support assembly 6 will contact the turntable 4, and while the outer cylinder 1 is supported by the main shaft 3, the turntable 4 is supported by multiple auxiliary support assemblies 6 to withstand the lateral forces in all directions during the rotation of the outer cylinder 1, ensuring the stability of the outer cylinder 1 during the rotation, thereby reducing the lateral shaking of the outer cylinder 1, avoiding the main shaft 3 from generating a large alternating load, extending the service life of the main shaft 3, and reducing the maintenance cost; at the same time, since the auxiliary support assembly 6 is rollingly connected with the turntable 4 or the cover plate 21 on the top of the inner tower 2, the moment of inertia will not be increased, and thus the energy consumption will not be increased.

[0032] like Figure 2 and Figure 3 As shown, the auxiliary support assembly 6 includes a bracket 62, a connecting shaft 63 and a sleeve 641, wherein the bracket 62 is provided with a roller 61 which is rotatably connected thereto and can contact the turntable 4. Specifically, the central axis of the roller 61 is horizontally arranged, and the roller 61 rotates around its central axis relative to the bracket 62. Preferably, the roller 61 adopts a structure composed of a bearing and an outer ring made of polyurethane, which reduces direct wear of the roller 61 and is easy to install and maintain. It is necessary to explain that the roller 61 composed of a bearing and an outer ring made of polyurethane can be obtained by external purchase.

[0033] One end of the connecting shaft 63 is connected to the bracket 62, and the other end extends into the sleeve 641 and is rotatably connected to the sleeve 641, and the sleeve 641 is connected to the cover plate 21. Specifically, the bottom of the sleeve 641 is connected to a mounting seat 643, and the mounting seat 643 is connected to the cover plate 21 through a plurality of circumferentially distributed fasteners such as bolts. The connecting shaft 63 and the bracket 62 can be connected by threaded connection, clamping, welding, etc.

[0034] During the rotation of the turntable 4, the roller 61 can not only rotate around its central axis, but also rotate relative to the cover plate 21 along with the connecting shaft 63, thereby realizing a rolling connection between the auxiliary support assembly 6 and the turntable 4, and reducing the friction between the auxiliary support assembly 6 and the turntable 4 during the rotation of the turntable 4.

[0035] Furthermore, an annular guide track is provided on the turntable 4 , and the top of the roller 61 is placed in the annular guide track, so that the roller 61 runs along the annular track to guide the rotation between the roller 61 and the turntable 4 .

[0036] Furthermore, a first stepped surface pointing to the cover plate 21 is provided in the sleeve 641, and the connecting shaft 63 can move axially relative to the sleeve 641. The wind boosting device further includes a first elastic member 65 sleeved outside the connecting shaft 63 and a stopper 67 connected to the lower end of the connecting shaft 63, and the first elastic member 65 is sandwiched between the first stepped surface and the stopper 67.

[0037] During the operation of the ship, there is not only horizontal shaking, but also vertical shaking. The turntable 4 will inevitably produce a hard impact on the roller 61. For this reason, this embodiment can buffer the vertical shaking of the connecting shaft 63 through the first elastic member 65, reduce the hard impact of the turntable 4 on the roller 61 and other structural parts in the vertical direction, reduce the wear of the roller 61, and extend the service life of the wind booster device.

[0038] Preferably, the above-mentioned limiting member 67 is a nut threadedly connected to the connecting shaft 63, and the distance between the limiting member 67 and the first step surface can be adjusted by screwing the nut, thereby adjusting the supporting capacity of the roller 61 to the turntable 4.

[0039] Furthermore, a second step surface pointing to the roller 61 is provided in the sleeve 641, an upper end cover 642 is provided at the top of the sleeve 641, and a second elastic member 66 is sandwiched between the upper end cover 642 and the second step surface. The second elastic member 66 further buffers the hard impact generated by the wind booster device in the vertical direction, so that the buffer distance can reach 2mm-3mm, thereby further extending the service life of the wind booster device. In this embodiment, the upper end cover 642 is connected to the top of the sleeve 641 by a plurality of circumferentially arranged bolts.

[0040] Furthermore, in order to make the rotation of the roller 61 more flexible, the wind booster device provided in this embodiment also includes a bearing 68 sleeved outside the connecting shaft 63 and arranged in the sleeve 641, so that the connecting shaft 63 is rotatably connected to the sleeve 641. Preferably, there are two bearings 68, and the two connecting shafts 63 are arranged at both ends of the sleeve 641. Specifically, one of the bearings 68 is arranged between the first elastic member 65 and the first stepped surface, and the other bearing 68 is arranged between the second elastic member 66 and the second stepped surface. Preferably, the bearing 68 adopts a thrust bearing to avoid the connection shaft 63 from getting stuck during rotation, so that the roller 61 can rotate more flexibly.

[0041] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A wind-assisted propulsion device, comprising an outer cylinder (1) capable of rotating about its own axis, an inner tower (2), a rotating disk (4) and a main shaft (3) arranged therein, wherein the lower end of the main shaft (3) extends into the inner tower (2) and is rotatably connected to the inner tower (2), and the upper end of the main shaft (3) is connected to the outer cylinder (1) through the rotating disk (4); characterized in that: Also includes: A plurality of auxiliary support assemblies (6) are arranged between the cover plate (21) at the top of the inner tower (2) and the turntable (4), and are distributed along the circumference of the main shaft (3); one end of each of the auxiliary support assemblies (6) is connected to one of the cover plate (21) at the top of the inner tower (2) and the turntable (4), and the other end is capable of being connected to the other end in a rolling manner; The auxiliary support assembly (6) comprises: a bracket (62) on which is provided a roller (61) rotatably connected thereto and capable of contacting the rotating disk (4); A connecting shaft (63), one end of which is connected to the bracket (62), and the other end of which extends into the sleeve (641) and is rotatably connected to the sleeve (641); the sleeve (641) is connected to the cover plate (21); A first step surface pointing towards the cover plate (21) is provided in the sleeve (641), and the connecting shaft (63) is capable of axial movement relative to the sleeve (641); It also includes a first elastic member (65) sleeved outside the connecting shaft (63) and a limiting member (67) connected to the lower end of the connecting shaft (63), wherein the first elastic member (65) is sandwiched between the first stepped surface and the limiting member (67); A second stepped surface pointing towards the roller (61) is provided in the sleeve (641), an upper end cover (642) is provided on the top of the sleeve (641), and a second elastic member (66) is sandwiched between the upper end cover (642) and the second stepped surface.

2. The wind booster device according to claim 1, characterized in that: A mounting seat (643) is provided at the bottom of the sleeve (641), and the mounting seat (643) is connected to the cover plate (21) via a plurality of circumferentially arranged fasteners.

3. The wind booster device according to claim 1, characterized in that: The limiting member (67) is a nut threadably connected to the connecting shaft (63).

4. The wind booster device according to claim 1, characterized in that: It also includes a bearing (68) sleeved outside the connecting shaft (63) and arranged inside the sleeve (641), so that the connecting shaft (63) is rotatably connected to the sleeve (641).

5. The wind booster device according to claim 4, characterized in that: Two bearings (68) are provided, and the two bearings (68) are arranged at both ends of the sleeve (641).

6. The wind booster device according to claim 4, characterized in that: The bearing (68) is a thrust bearing.

7. The wind booster device according to claim 1, characterized in that: The rotating disk (4) is provided with an annular guide track, and the top of the roller (61) is placed in the annular guide track.

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