An ice protection device for a full-azimuth propeller on a ship navigating in ice

Abstract

The utility model discloses a kind of ice prevention devices on full-rotation rudder propeller of ice area navigation ship, belong to ship propeller technical field, including box, the box is provided with rudder column, the rudder column is connected with ship body;Icebreaking cone, the icebreaking cone quantity is multiple and evenly distributed in the front end of the box, to carry out icebreaking treatment;Hub, the hub is located in the front end of the box, a plurality of blades are provided on the hub, to push ship body;Guide piece, the guide piece is connected with the box by a plurality of reinforcing ribs, the guide piece is located between the icebreaking cone and the hub, the guide piece is horn shape structure body.The utility model does not need to use net-shaped protective structure to protect blade, adopts icebreaking cone, reinforcing rib and guide piece to be arranged in echelon in navigation direction, and additionally add icebreaking ice knife, effectively avoid the phenomenon of ice jam, realize the function of icebreaking, ice separation and lateral protection.

Description

Technical Field

[0001] This utility model belongs to the field of marine propulsion technology, and in particular relates to an anti-icing device for a fully azimuth rudder propeller of a ship navigating in ice-covered areas. Background Technology

[0002] For icebreakers or ice-resistant vessels navigating in ice-covered areas, the current general measures for propeller blade protection are to increase the thickness of the propeller to enhance its impact resistance and thus extend its service life. In addition, as shown in patent CN115158620A, a mesh structure is used to achieve the effect of ice separation protection.

[0003] Using a thicker propeller blade will increase the weight of the blade, increase power loss, and reduce propeller propulsion efficiency. In addition, since propellers in polar or ice-covered areas are generally made of high-strength aluminum bronze alloy or high-strength stainless steel, they are expensive, and the increased weight will significantly increase the cost.

[0004] For example, patent CN115158620A has two defects in its mesh protection structure. First, it can only protect against threatening ice blocks coming from the front direction, and it is not enough to protect against threatening ice blocks approaching from the side. Second, the mesh structure can cause ice to get stuck, with ice blocks getting stuck at the mesh openings. The accumulation of ice blocks can cause water flow blockage, which seriously affects the normal operation of the propeller. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides an anti-icing device for a fully azimuth propeller on a vessel navigating in ice-covered areas, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, comprising...

[0007] The container is equipped with a rudder column, which is connected to the hull.

[0008] Ice-breaking cones, in multiple quantities and evenly distributed at the forward start of the box, are used for ice-breaking.

[0009] A propeller hub, located at the forward end of the box, is provided with several propeller blades to propel the hull.

[0010] The guide component is connected to the housing by several reinforcing ribs. The guide component is located between the icebreaker cone and the propeller hub. The guide component is a horn-shaped structure.

[0011] In a preferred embodiment of this utility model, the number of icebreakers is 8-12 and they are evenly distributed, and the cross-sectional shape of the icebreakers is an isosceles triangle.

[0012] In a preferred embodiment of this utility model, the ice-breaking cone is a stainless steel structural component and is bolted to the box body.

[0013] In a preferred embodiment of this utility model, the box is provided with a plurality of ice blades, the ice blades being positioned corresponding to the propeller hub to cut objects at the propeller blade positions.

[0014] In a preferred embodiment of this utility model, the number of ice skates is 3-4, the distance between the ice skates and the paddle blades is 50-80mm, and the cross-sectional shape of the ice skates is an isosceles triangle.

[0015] In a preferred embodiment of this utility model, the ice skate is a stainless steel structural component and is bolted to the box body.

[0016] In a preferred embodiment of this utility model, the number of reinforcing ribs is 6-8 and they are arranged symmetrically, and the thickness of the reinforcing ribs is 25-30mm.

[0017] In a preferred embodiment of this invention, the reinforcing ribs and the ice-breaking cone are staggered in the rotational direction of the box.

[0018] In a preferred embodiment of this utility model, the small end inlet of the guide corresponds to the position of the icebreaker cone, and the large end outlet of the guide corresponds to the position of the propeller hub.

[0019] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0020] 1. The anti-icing device of this utility model does not require the use of a mesh protective structure to protect the propeller blades. Instead, it uses ice-breaking cones, reinforcing ribs, and guide components arranged in a tiered manner along the navigation direction. Furthermore, it adds ice-breaking blades, which effectively prevents ice jamming and achieves the functions of ice breaking, ice separation, and lateral protection.

[0021] 2. This utility model can protect the blades without modifying them by using a thickened spiral, thus effectively reducing manufacturing costs. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of another overall structure of a preferred embodiment of the present invention;

[0025] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0026] Figure 4 This is a side view of a preferred embodiment of the present invention;

[0027] In the diagram: 10, housing; 11, rudder column; 20, icebreaker; 30, propeller hub; 31, propeller blade; 40, guide component; 50, reinforcing rib; 60, ice blade. Detailed Implementation

[0028] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0029] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This embodiment provides an anti-icing device for a azimuth propeller on a vessel navigating in ice-covered areas. This anti-icing device does not require a mesh protective structure to protect the propeller blade 31. Instead, it uses icebreaker cones 20, reinforcing ribs 50, and guide members 40 arranged in a tiered manner along the navigation direction. Furthermore, it adds icebreaker blades 60 to effectively prevent ice jamming and achieves the functions of icebreaking, ice separation, and lateral protection.

[0031] Combination Figures 1 to 4As shown, the anti-icing device for a fully azimuth-rotating propeller on a vessel navigating in ice-covered areas in this embodiment includes a housing 10, an icebreaker cone 20, a propeller hub 30, and a guide member 40. The housing 10 is equipped with a rudder column 11, which is connected to the hull. In this embodiment, the transmission structure, sealing structure, and hydraulic structure are all located inside the housing 10 and the rudder column 11. The propulsion motor and the rudder motor are located inside the hull. The propulsion motor drives the propeller hub 30 to rotate through the transmission structure, thereby generating thrust to propel the vessel forward. The rudder motor drives the entire underwater device to rotate.

[0032] In this embodiment, multiple icebreaker cones 20 are evenly distributed at the forward start of the container 10 for icebreaking. There are 8-12 icebreaker cones 20, equidistantly distributed, with an isosceles triangle cross-sectional shape. The icebreaker cones 20 are stainless steel structural components and are bolted to the container 10. In this embodiment, the pointed ends of the icebreaker cones 20 face the direction of the ship's movement, breaking up ice blocks in the forward flow and eliminating the threat of medium to large ice blocks. The icebreaker cones 20 are made of high-strength stainless steel and bolted to the container 10 for regular replacement, ensuring their normal operation.

[0033] Combination Figure 2 and Figure 3 As shown, in this embodiment, the propeller hub 30 is located at the forward end of the housing 10. The propeller hub 30 is provided with several blades 31 to propel the hull. The guide member 40 is connected to the housing 10 through several reinforcing ribs 50. The guide member 40 is located between the icebreaker cone 20 and the propeller hub 30. The guide member 40 is a horn-shaped structure. The small end inlet of the guide member 40 corresponds to the position of the icebreaker cone 20, and the large end outlet of the guide member 40 corresponds to the position of the propeller hub 30. The horn-shaped guide member 40, together with the reinforcing ribs 50, can protect against ice coming from the front and effectively block the impact of ice blocks from the side. Moreover, its horn shape can separate ice and guide ice blocks away from the propeller hub 30. Compared with the mesh structure, it can effectively avoid the occurrence of ice jamming and has a flow straightening effect, improving the wake field of the water flow and increasing the propulsion efficiency of the blades 31. Compared with the propeller with a duct, the horn-shaped guide member 40 is located in front of the blades 31 and there is no blade tip gap, avoiding the phenomenon of ice jamming in the blade tip gap.

[0034] In this embodiment, the housing 10 is equipped with several ice blades 60, which correspond to the positions of the propeller hub 30 to cut objects at the propeller blade 31. There are 3-4 ice blades 60, with a distance of 50-80mm between each ice blade 60 and the propeller blade 31. The cross-sectional shape of each ice blade 60 is an isosceles triangle. The ice blades 60 are stainless steel components and are bolted to the housing 10. When navigating in icy conditions, due to the low speed at the root of the propeller blade 31 and the slow water flow, small ice blocks often adhere and accumulate near the blade root, severely affecting the propeller's propulsion efficiency. Therefore, several ice blades 60 are installed on the housing 10, close to the rotating propeller hub 30 and propeller blade 31, with a 50mm interval between them. When the propeller blade 31 rotates, the ice blades 60 can cut ice blocks, fishing nets, and other debris near the blade root, achieving both icebreaking and protection.

[0035] Furthermore, in this embodiment, there are 6-8 reinforcing ribs 50 arranged symmetrically, and the thickness of the reinforcing ribs 50 is 25-30mm. The reinforcing ribs 50 and the ice-breaking cone 20 are staggered in the rotation direction of the box body 10. The reinforcing ribs 50 and the ice-breaking cone 20 are arranged in a staggered manner, which can not only block ice blocks and separate ice, but also avoid the ice jamming phenomenon of the mesh structure.

[0036] In this embodiment, the anti-icing device for a fully azimuth-rotating propeller on a vessel navigating in ice-covered areas has its transmission, sealing, and hydraulic structures all housed within the housing 10 and the rudder column 11. The propulsion motor and rudder motor are located inside the hull. The propulsion motor drives the propeller hub 30 to rotate via the transmission structure, generating thrust to propel the vessel forward. The rudder motor drives the entire underwater device to rotate. Ice-breaking cones 20 are evenly distributed at the forward starting point of the housing 10, capable of breaking ice blocks in the forward flow and eliminating the threat of medium to large ice blocks. The guide member 40 cooperates with the reinforcing rib 50 to... It can protect against incoming ice and effectively block impacts from side ice blocks. Its horn-shaped design can break up ice and guide it away from the propeller hub 30. Compared to a mesh structure, it effectively prevents ice from getting stuck and also has a flow-rectifying effect, improving the wake field of the water flow and increasing the propulsion efficiency of the propeller blade 31. Compared to a propeller with a duct, the horn-shaped guide 40 is located in front of the propeller blade 31, eliminating the blade tip gap and preventing ice from getting stuck. Furthermore, an ice blade 60 is installed on the housing 10, which can cut up ice blocks, fishing nets, and other debris near the blade root when the propeller blade 31 rotates. This achieves both ice-breaking and protective effects.

[0037] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0038] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0039] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0040] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. An anti-icing device for a fully azimuth-rotating rudder propeller on a vessel navigating in ice-covered areas, characterized in that, include The box (10) is provided with a rudder column (11) and the rudder column (11) is connected to the hull; Ice-breaking cones (20), there are multiple ice-breaking cones (20) and they are evenly distributed at the forward start of the box (10) for ice-breaking processing; A hub (30) is located at the forward end of the box (10), and a plurality of blades (31) are provided on the hub (30) to propel the hull. The guide (40) is connected to the box (10) by a number of reinforcing ribs (50). The guide (40) is located between the icebreaker (20) and the propeller hub (30). The guide (40) is a horn-shaped structure.

2. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 1, is characterized in that... The number of icebreakers (20) is 8-12 and they are evenly distributed. The cross-sectional shape of the icebreakers (20) is an isosceles triangle.

3. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 2, is characterized in that... The ice-breaking cone (20) is a stainless steel structural component and is bolted to the box (10).

4. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 1, is characterized in that... The box (10) is provided with a number of ice blades (60), which are positioned corresponding to the hub (30) to cut objects at the position of the blades (31).

5. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 4, is characterized in that... The number of ice skates (60) is 3-4, the distance between the ice skates (60) and the blades (31) is 50-80mm, and the cross-sectional shape of the ice skates (60) is an isosceles triangle.

6. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 4, is characterized in that... The ice skate (60) is a stainless steel structural component and is bolted to the housing (10).

7. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 1, is characterized in that... The number of reinforcing ribs (50) is 6-8 and they are arranged symmetrically. The thickness of the reinforcing ribs (50) is 25-30mm.

8. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 7, is characterized in that... The reinforcing ribs (50) and the ice-breaking cones (20) are staggered in the rotation direction of the box (10).

9. An anti-icing device for a fully azimuth-rotating rudder propeller of a vessel navigating in ice-covered areas, as described in claim 1, is characterized in that... The small end inlet of the guide (40) corresponds to the position of the icebreaker (20), and the large end outlet of the guide (40) corresponds to the position of the propeller hub (30).

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