A self-locking pod propulsion device

Abstract

The utility model discloses a kind of self-locking's pod propulsion device, comprising: hanger, hanger has rotatable vertical shaft;Steering mechanism, steering mechanism includes transmission assembly, drive transmission assembly transmission's first motor, transmission assembly is used to drive vertical shaft transmission;Propulsion mechanism, propulsion mechanism includes connecting seat, is connected in the propeller body of connecting seat, connecting seat is connected with vertical shaft, propeller body has for generating propelling power propeller, the axis of propeller is perpendicular with the axis of vertical shaft;Wherein, transmission assembly includes worm and worm wheel, worm is coaxially connected with the output shaft of first motor, worm wheel is coaxially connected with vertical shaft, worm and worm wheel meshing transmission, to make transmission assembly realize self-locking function.The utility model can improve the steering accuracy of steering mechanism, and improve the response efficiency of steering.

Description

Technical Field

[0001] This utility model relates to the technical field of pod propulsion devices, and in particular to a self-locking pod propulsion device. Background Technology

[0002] Submarine podded propulsion systems are a common type of ship propulsion device. Conventionally, a submarine podded propulsion system has a drive mechanism and a steering mechanism. The drive mechanism generates propulsion power through a propeller, while the steering mechanism, through a transmission assembly, drives the entire drive mechanism to rotate around a vertical axis, thereby changing the direction of the thrust generated by the propeller. This thrust vector control method allows ships to achieve steering functions without relying on traditional rudders.

[0003] When a ship is sailing, especially during the turning of the podded propulsion system, the powerful water flow directly impacts the drive mechanism exposed in the water. These water flow forces are transmitted to the steering mechanism, creating a significant disturbance torque that causes the steering mechanism to rotate, changing the propulsion direction of the podded propulsion system and thus altering the ship's trajectory. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a self-locking pod propulsion device, which can improve the steering accuracy of the steering mechanism and enhance the steering response efficiency.

[0005] A self-locking pod propulsion device according to an embodiment of the present invention includes: a gantry with a rotatable vertical shaft; a steering mechanism including a transmission assembly and a first motor for driving the transmission assembly, the transmission assembly driving the vertical shaft; and a propulsion mechanism including a connecting seat and a propeller body connected to the connecting seat, the connecting seat being connected to the vertical shaft, the propeller body having a propeller for generating propulsion power, the axis of the propeller being perpendicular to the axis of the vertical shaft; wherein the transmission assembly includes a worm and a worm wheel, the worm being coaxially connected to the output shaft of the first motor, the worm wheel being coaxially connected to the vertical shaft, and the worm and the worm wheel engaging in transmission to enable the transmission assembly to achieve a self-locking function.

[0006] A self-locking pod propulsion device according to an embodiment of the present invention has at least the following beneficial effects:

[0007] 1. This utility model, by setting up a worm gear and a worm wheel, utilizes a first motor to drive the worm gear to rotate. The worm gear and worm wheel mesh and transmit power, causing the worm wheel to drive the vertical shaft to rotate. The vertical shaft then drives the propeller body to achieve the steering function. Furthermore, by utilizing the unidirectional transmission characteristics of the worm gear and worm wheel, the worm gear can drive the worm wheel to rotate, but the worm wheel cannot drive the worm gear to rotate. This gives the transmission component a self-locking function. The propeller body can only turn under the drive of the first motor. Under the impact of water flow, the propeller body cannot turn. This fundamentally eliminates the interference torque of water flow that causes unexpected angular deviations of the propeller body. Therefore, it improves the steering accuracy of the steering mechanism and the steering response efficiency, ensuring that the propeller thrust direction can maintain the set angle for a long time without frequent corrections, significantly improving the ship's maneuvering precision.

[0008] 2. The worm gear and worm wheel transmission structure of this utility model has the characteristics of large transmission ratio and compact structure. It avoids the use of multi-stage transmission gear structure, which helps to reduce the volume of transmission components, thereby reducing the volume of the pod propulsion device. In addition, the worm gear and worm wheel transmission structure also has the advantages of smooth transmission and no noise, which helps to reduce the noise generated by the pod propulsion device during operation.

[0009] According to an embodiment of the present invention, a self-locking pod propulsion device is provided, wherein the vertical shaft is a hollow shaft, the propeller body has a second motor that drives the propeller to rotate, the second motor is provided with a connecting wire, the connecting wire is arranged inside the hollow shaft and electrically connected to an external power source.

[0010] According to an embodiment of the present invention, a self-locking pod propulsion device is provided at the top end of the hollow shaft. The conductive slip ring has a stationary ring and a moving ring that rotate coaxially. The stationary ring is fixedly installed, and the moving ring is coaxially connected to the hollow shaft and is used to connect to the grounding wire.

[0011] According to an embodiment of the present invention, a self-locking pod propulsion device is provided with a cover, the inside of which accommodates the conductive slip ring to cover the conductive slip ring.

[0012] According to an embodiment of the present invention, a self-locking pod propulsion device is provided, wherein the pod has a base plate, a plurality of side plates disposed on the outer periphery of the base plate, and a support plate disposed on the side of the side plates away from the base plate. The base plate and the plurality of side plates form a groove structure, and the support plate is used for connection to a ship.

[0013] According to an embodiment of the present invention, a self-locking pod propulsion device is provided with a fixed sleeve on the base plate, and the vertical shaft is installed inside the fixed sleeve. A bearing is rotatably connected between the vertical shaft and the fixed sleeve.

[0014] According to an embodiment of the present invention, a self-locking pod propulsion device is provided with a fixed sleeve having a housing, the interior of which accommodates the transmission component.

[0015] According to an embodiment of the present invention, a self-locking pod propulsion device is provided at the bottom of the fixed sleeve, the sealing sleeve is sleeved on the vertical shaft and abuts against the end face of the bearing, a first sealing ring is provided on the radial outer surface of the sealing sleeve, the first sealing ring abuts against the fixed sleeve, and a second sealing ring is provided on the radial inner surface of the sealing sleeve, the first sealing ring abuts against the vertical shaft.

[0016] According to an embodiment of the present invention, a self-locking pod propulsion device is provided, wherein the connecting seat has a hollow cavity, a first connecting plate connected to the inner wall of the hollow cavity, and a second connecting plate is provided at the bottom end of the vertical shaft, and the first connecting plate and the second connecting plate are connected and fixed.

[0017] According to an embodiment of the present invention, a self-locking pod propulsion device is provided with a rudder blade on the side of the propulsion body away from the connecting seat.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a self-locking pod propulsion device according to an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of a self-locking pod propulsion device with the box and cover removed is shown.

[0022] Figure 3 for Figure 1 A cross-sectional view of a self-locking pod propulsion device is shown.

[0023] Reference numerals: 100-Hanger, 110-Vertical shaft, 120-Transmission assembly, 130-First motor, 140-Connecting seat, 150-Thruster body, 160-Worm, 170-Worm wheel, 180-Second motor, 190-Conductive slip ring, 200-Cover, 210-Base plate, 220-Side plate, 230-Support plate, 240-Fixing sleeve, 250-Bearing, 260-Box, 270-Sealing sleeve, 280-First sealing ring, 290-Second sealing ring, 300-First connecting plate, 310-Second connecting plate, 320-Rudder blade, 330-Propeller. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] A self-locking pod propulsion device according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0029] Reference Figure 1The present invention aims to provide an embodiment of a self-locking pod propulsion device.

[0030] A self-locking pod propulsion device according to an embodiment of the present invention includes a pod 100, a steering mechanism, and a propulsion mechanism. The pod 100 has a rotatable vertical shaft 110. The steering mechanism includes a transmission assembly 120 and a first motor 130 that drives the transmission assembly 120. The transmission assembly 120 is used to drive the vertical shaft 110. The propulsion mechanism includes a connecting seat 140 and a propeller body 150 connected to the connecting seat 140. The connecting seat 140 is connected to the vertical shaft 110. The propeller body 150 has a propeller 330 for generating propulsion power. The axis of the propeller 330 is perpendicular to the axis of the vertical shaft 110.

[0031] Furthermore, referring to Figure 2 The transmission assembly 120 includes a worm 160 and a worm wheel 170. The worm 160 is coaxially connected to the output shaft of the first motor 130, and the worm wheel 170 is coaxially connected to the vertical shaft 110. The worm 160 and the worm wheel 170 mesh and transmit power so that the transmission assembly 120 can achieve a self-locking function.

[0032] It is understood that this utility model, by setting a worm gear 160 and a worm wheel 170, uses a first motor 130 to drive the worm gear 160 to rotate. The worm gear 160 and the worm wheel 170 mesh and transmit power, causing the worm wheel 170 to drive the vertical shaft 110 to rotate. The vertical shaft 110 then drives the propeller body 150 to achieve the steering function. Furthermore, utilizing the unidirectional transmission characteristics of the worm wheel 170 and the worm gear 160, the worm gear 160 can drive the worm wheel 170 to rotate, while the worm wheel 170 cannot drive the worm gear 160 to rotate. This gives the transmission component 120 a self-locking function. The propeller body 150 can only turn under the drive of the first motor 130. Under the impact of water flow, the propeller body 150 cannot turn, fundamentally eliminating the unexpected angular deviation of the propeller body 150 caused by the interference torque of the water flow. This improves the steering accuracy of the steering mechanism and the steering response efficiency, ensuring that the thrust direction of the propeller 330 can maintain the set angle for a long time without frequent correction, significantly improving the ship's maneuvering precision.

[0033] Furthermore, the worm gear 160 and worm wheel 170 transmission structure of this utility model has the characteristics of large transmission ratio and compact structure, avoiding the use of multi-stage transmission gear structure, which helps to reduce the volume of transmission component 120, thereby reducing the volume of pod propulsion device. In addition, the worm gear 160 and worm wheel 170 transmission structure also has the advantages of smooth transmission and no noise, which helps to reduce the noise generated by the pod propulsion device during operation.

[0034] In some embodiments of this utility model, reference is made to Figure 3The vertical shaft 110 is a hollow shaft, and the propeller body 150 has a second motor 180 that drives the propeller 330 to rotate. The second motor 180 is equipped with a connecting wire, which is arranged inside the hollow shaft and electrically connected to an external power source.

[0035] Understandably, the wiring of the second motor 180 is routed inside the hollow shaft, eliminating the need for the wiring to be arranged on the radial outside of the vertical shaft 110. This optimizes the wiring arrangement, facilitates wiring storage, avoids messy wiring, reduces interference from external pipelines with the steering mechanism's range of motion, and improves structural compactness.

[0036] In some embodiments of this utility model, reference is made to Figure 2 and 3 The top of the hollow shaft is provided with a conductive slip ring 190. The conductive slip ring 190 has a stationary ring and a moving ring that rotate coaxially. The stationary ring is fixedly set, and the moving ring is coaxially connected to the hollow shaft and is used to connect to the grounding wire.

[0037] It is understandable that the stationary and moving rings of the conductive slip ring 190 are interconnected and rotate relative to each other. The stationary ring is connected to an external power source, and the moving ring is fixed to the hollow shaft. This allows the hollow shaft and the stationary ring to rotate relative to each other. After the connecting wire is connected to the moving ring, it can be fixed inside the hollow shaft, thereby avoiding the risk of the connecting wire becoming tangled or twisted.

[0038] In some embodiments of this utility model, reference is made to Figure 1 The hanger 100 is provided with a cover 200, which houses the conductive slip ring 190 and covers it. Therefore, the cover 200 isolates the conductive slip ring 190 from water corrosion and also prevents external contact with the rotating conductive slip ring 190, thereby improving safety and extending the life of the conductive slip ring 190.

[0039] In some embodiments of this utility model, the hanger 100 has a base plate 210, a plurality of side plates 220 disposed on the outer periphery of the base plate 210, and a support plate 230 disposed on the side of the side plates 220 away from the base plate 210. The base plate 210 and the plurality of side plates 220 form a groove structure, and the support plate 230 is used to connect to the ship.

[0040] Therefore, the gantry structure 100 can be placed into the installation cavity of the ship. The gantry 100 can extend into the installation cavity, which reduces the height of the gantry 100 installed on the ship, which is conducive to the submersion of the propeller body 150 underwater. Furthermore, the bottom plate 210 and the side plate 220 are matched with the installation cavity of the ship to cover the installation cavity of the ship. Secondly, the support plate 230 is fixed to the ship with bolts, thereby enabling the gantry 100 to be installed on the ship.

[0041] In some embodiments of this utility model, the base plate 210 is provided with a fixing sleeve 240, a vertical shaft 110 is installed inside the fixing sleeve 240, and a bearing 250 is rotatably connected between the vertical shaft 110 and the fixing sleeve 240.

[0042] Therefore, when installing the vertical shaft 110, two bearings 250 can be respectively fitted onto both ends of the vertical shaft 110. Then, the vertical shaft 110 is inserted into the fixing sleeve 240, so that the bearings 250 are installed inside the fixing sleeve 240. This avoids direct rotational connection between the vertical shaft 110 and the fixing sleeve 240, prevents excessive friction between the vertical shaft 110 and the fixing sleeve 240, suppresses the increase in clearance caused by wear, and improves the life of the vertical shaft 110.

[0043] In some embodiments of this utility model, the fixing sleeve 240 is provided with a box body 260, and the inside of the box body 260 accommodates the transmission assembly 120.

[0044] Therefore, the housing 260 isolates the worm gear 170 and worm 160 from the outside, preventing external water from corroding the transmission assembly 120 and preventing external contact with the rotating worm gear 170 and worm 160, thus improving the safety of the transmission assembly 120 and protecting it from contamination.

[0045] In some embodiments of this utility model, a sealing sleeve 270 is provided at the bottom of the fixing sleeve 240. The sealing sleeve 270 is sleeved on the vertical shaft 110 and abuts against the end face of the bearing 250. A first sealing ring 280 is provided on the radial outer surface of the sealing sleeve 270. The first sealing ring 280 abuts against the fixing sleeve 240. A second sealing ring 290 is provided on the radial inner surface of the sealing sleeve 270. The first sealing ring 280 abuts against the vertical shaft 110.

[0046] Since the bearing 250 at the bottom of the vertical shaft 110 is close to the propeller body 150, external water can easily enter the bearing 250. Therefore, a sealing sleeve 270 is set between the fixed sleeve 240 and the vertical shaft 110, and the first sealing ring 280 and the second sealing ring 290 prevent external water from entering the interior of the fixed sleeve 240, thereby improving the sealing between the fixed sleeve 240 and the vertical shaft 110 and preventing the bearing 250 from rusting due to water immersion.

[0047] In some embodiments of this utility model, the connecting seat 140 has a hollow cavity, a first connecting plate 300 connected to the inner wall of the hollow cavity, and a second connecting plate 310 provided at the bottom end of the vertical shaft 110. The first connecting plate 300 and the second connecting plate 310 are connected and fixed.

[0048] It is understandable that by using the large-area bonding of the first connecting plate 300 and the second connecting plate 310, and then using bolts to fix the first connecting plate 300 and the second connecting plate 310, and then using welding to seal the connection between the first connecting plate 300 and the second connecting plate 310, on the one hand, the torque of the propulsion mechanism is stably transmitted to the vertical shaft 110, reducing vibration and deviation, and on the other hand, the sealing performance inside the propeller body 150 can be improved.

[0049] In some embodiments of this utility model, a rudder blade 320 is provided on the side of the thruster body 150 away from the connecting seat 140. The rudder blade 320 can follow the thruster body 150 to turn, and play a role in steering balance.

[0050] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-locking pod propulsion device, characterized in that, include: Hanger (100), the hanger (100) having a rotatable vertical shaft (110); The steering mechanism includes a transmission assembly (120) and a first motor (130) that drives the transmission assembly (120) to drive the vertical shaft (110). The propulsion mechanism includes a connecting seat (140) and a propeller body (150) connected to the connecting seat (140). The connecting seat (140) is connected to the vertical shaft (110). The propeller body (150) has a propeller (330) for generating propulsion power. The axis of the propeller (330) is perpendicular to the axis of the vertical shaft (110). The transmission assembly (120) includes a worm (160) and a worm wheel (170). The worm (160) is coaxially connected to the output shaft of the first motor (130), and the worm wheel (170) is coaxially connected to the vertical shaft (110). The worm (160) and the worm wheel (170) mesh and drive each other so that the transmission assembly (120) can achieve a self-locking function.

2. The self-locking pod propulsion device according to claim 1, characterized in that, The vertical shaft (110) is a hollow shaft, and the propeller body (150) has a second motor (180) that drives the propeller (330) to rotate. The second motor (180) is provided with a connecting wire, which is arranged inside the hollow shaft and electrically connected to an external power source.

3. The self-locking pod propulsion device according to claim 2, characterized in that, The top end of the hollow shaft is provided with a conductive slip ring (190). The conductive slip ring (190) has a stationary ring and a moving ring that rotate coaxially. The stationary ring is fixedly set, and the moving ring is coaxially connected to the hollow shaft and is used to connect to the grounding wire.

4. The self-locking pod propulsion device according to claim 3, characterized in that, The hanger (100) is provided with a cover (200), the interior of which accommodates the conductive slip ring (190) to cover the conductive slip ring (190).

5. The self-locking pod propulsion device according to claim 1, characterized in that, The hanger (100) has a base plate (210), a plurality of side plates (220) disposed on the outer periphery of the base plate (210), and a support plate (230) disposed on the side of the side plate (220) away from the base plate (210). The base plate (210) and the plurality of side plates (220) form a trough structure, and the support plate (230) is used for connection to the ship.

6. A self-locking pod propulsion device according to claim 5, characterized in that, The base plate (210) is provided with a fixing sleeve (240), the vertical shaft (110) is installed inside the fixing sleeve (240), and a bearing (250) is rotatably connected between the vertical shaft (110) and the fixing sleeve (240).

7. A self-locking pod propulsion device according to claim 6, characterized in that, The fixing sleeve (240) is provided with a box (260), and the inside of the box (260) accommodates the transmission assembly (120).

8. A self-locking pod propulsion device according to claim 7, characterized in that, The bottom of the fixed sleeve (240) is provided with a sealing sleeve (270), the sealing sleeve (270) is sleeved on the vertical shaft (110) and abuts against the end face of the bearing (250), the outer radial surface of the sealing sleeve (270) is provided with a first sealing ring (280), the first sealing ring (280) abuts against the fixed sleeve (240), the inner radial surface of the sealing sleeve (270) is provided with a second sealing ring (290), the first sealing ring (280) abuts against the vertical shaft (110).

9. A self-locking pod propulsion device according to claim 1, characterized in that, The connecting seat (140) has a hollow cavity and a first connecting plate (300) connected to the inner wall of the hollow cavity. The bottom end of the vertical shaft (110) is provided with a second connecting plate (310). The first connecting plate (300) and the second connecting plate (310) are connected and fixed.

10. A self-locking pod propulsion device according to claim 1, characterized in that, The propeller body (150) has a rudder blade (320) on the side away from the connecting seat (140).

Images