Icebreaking mechanism used in cooperation with propeller of icebreaker

Abstract

The utility model relates to the technical field of icebreaking equipment, in particular to an icebreaking mechanism matched with a propeller of an icebreaker for use, which comprises a hull connecting frame, a grinding mechanism and an ice drilling mechanism, the grinding mechanism and the ice drilling mechanism are connected with the hull connecting frame, and the hull connecting frame is fixed on the lower portion of the outer side of a bow of the icebreaker. The grinding mechanism comprises a first motor, a rotating shaft fixedly connected with and coaxial with an output shaft of the first motor and multiple sets of ice grinding wheels and ice breaking knives arranged on the rotating shaft in a sleeving mode, the two ends of the rotating shaft are rotationally connected with the hull connecting frame respectively, and the ice grinding wheels and the ice breaking knives are fixedly connected with the rotating shaft. The ice drilling mechanism comprises a mounting frame, a lifting mechanism arranged on the mounting frame, a rotating mechanism connected with the lifting mechanism and an ice breaking drill bit connected with the rotating mechanism and located in front of the grinding mechanism, the lifting mechanism drives the rotating mechanism to move up and down in the vertical direction, and the rotating mechanism drives the ice breaking drill bit to rotate in the horizontal direction. The icebreaking mechanism can solve the technical problems that an existing icebreaker is low in icebreaking efficiency and high in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of icebreaking equipment, in particular to an icebreaking mechanism used in conjunction with an icebreaker propeller. Background Art

[0002] With the deepening of the development of polar resources, more and more ships need to sail in polar regions. Due to the low temperature in polar regions, the sea surface will freeze and form ice layers, which seriously affect the normal navigation of ships. Therefore, icebreaking operations are required to ensure the normal navigation of ships. Icebreakers are service ships used to break ice on the water surface, open up waterways, ensure ships enter and exit frozen ports and anchorages, or guide ships to sail in ice areas.

[0003] Conventional icebreakers mainly use three methods to break ice, namely continuous icebreaking, impact icebreaking and swing icebreaking. These conventional icebreaking methods are all icebreaking operations where the icebreaker collides with the ice layer. During the icebreaking process, the collision between the ship and the ice layer will produce huge vibrations and noise, increasing the risk of hull rupture and posing a great safety hazard. In the prior art, the icebreaking structure of non-contact icebreakers is mostly "V"-shaped and arranged on both sides of the hull to knock and lift the ice surface, but it cannot effectively break ice for thicker ice layers, affecting the normal navigation of the ship. In addition, the icebreaking mechanism has a complex structure, high energy consumption, and high manufacturing and maintenance costs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an icebreaking mechanism for use with an icebreaker propeller, which, in conjunction with the propulsion force of the propeller, can quickly cut and crush the ice surface in the direction of the icebreaker's advance, thereby ensuring a smooth passage for ships, and can effectively solve the technical problems of low icebreaking efficiency and high energy consumption of existing icebreakers.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] In one technical solution of the utility model, an icebreaking mechanism used in conjunction with an icebreaker propeller is provided, comprising a hull connecting frame and a grinding mechanism and an ice drilling mechanism connected thereto, wherein the hull connecting frame is fixed to the lower outer side of the bow of the icebreaker;

[0007] The grinding mechanism includes a first motor, a rotating shaft fixedly connected to and coaxial with the output shaft of the first motor, and a plurality of groups of ice grinding wheels and ice breaking knives sleeved on the rotating shaft, the rotating shaft is horizontally arranged and the two ends are respectively rotatably connected to the hull connecting frame, the ice grinding wheels and ice breaking knives are fixedly connected to the rotating shaft and rotate synchronously;

[0008] The ice drilling mechanism includes a mounting frame, a lifting mechanism arranged on the mounting frame, a rotating mechanism connected to the lifting mechanism, and an icebreaking drill bit connected to the rotating mechanism. The icebreaking drill bit is located in front of the grinding mechanism. The mounting frame is fixedly connected to the hull connecting frame. The lifting mechanism drives the rotating mechanism to move up and down in the vertical direction, and the rotating mechanism drives the icebreaking drill bit to rotate in the horizontal direction.

[0009] By adopting the above technical scheme, the icebreaker mechanism is installed at the front end of the bow of the icebreaker through the hull connecting frame, and the water flow is driven by the rotation of the propeller installed at the stern of the icebreaker as the forward power. When breaking ice, on the one hand, the ice surface is cut and ground in sections by the ice grinding wheel and the ice breaker to cause various forms of damage. The ice breaker divides the large area of ​​ice into small areas of ice, and cooperates with the ice grinding wheel to longitudinally impact and break the cut small area of ​​ice, so as to facilitate the breaking of the ice layer; on the other hand, a lifting mechanism and a rotating mechanism are set to adjust the icebreaker drill bit to apply downward force to the ice layer in front of the working area of ​​the grinding mechanism and drill holes. The ice drilling mechanism mainly drives the icebreaker drill bit to drill holes to destroy the integrity of the ice layer, so that the stress is concentrated at the drilling position, and at the same time, force is applied downward to cooperate with the grinding mechanism to destroy the ice layer in this area, so as to achieve rapid breaking and crushing of the ice layer.

[0010] Furthermore, positioning flanges are respectively sleeved and fixedly connected at both ends of the rotating shaft, an ice-breaking knife is fixedly connected between two adjacent ice-grinding wheels, and the positioning flanges are fixedly connected to the ice-grinding wheels.

[0011] Furthermore, a boss is provided around the middle of the rotating shaft, and the ice grinding wheel, ice breaking knife, positioning flange and boss are fixedly connected along the axial direction by passing bolts.

[0012] Furthermore, the outer diameter of the ice-breaking blade is larger than that of the ice-grinding wheel, and a plurality of protrusions are evenly arranged on the circumferential surface of the ice-grinding wheel. When breaking ice, the ice-breaking blade first contacts the ice layer for cutting, and then the ice-grinding wheel impacts, grinds and breaks the small area of ​​ice after the segmentation, so as to reduce the difficulty of breaking the ice layer.

[0013] Furthermore, the first motor is fixedly installed in a motor box, the motor box is fixedly connected to the hull connecting frame, and the output shaft of the first motor horizontally passes through the motor box and is connected to the rotating shaft.

[0014] Furthermore, the lifting mechanism includes a cylinder, an intermediate plate and a lifting plate, wherein the cylinder is vertically fixed to the top plate of the mounting frame, the piston rod of the cylinder is connected to the intermediate plate, and the lifting plate is arranged below the intermediate plate and fixedly connected to the intermediate plate by at least three connecting rods. The cylinder drives the piston rod to extend and retract in the vertical direction, and drives the intermediate plate and the lifting plate to move up and down in the vertical direction.

[0015] Furthermore, four guide rods are movably connected between the lifting plate and the top plate, the bottom of the guide rod is fixedly connected to the lifting plate, the upper part of the guide rod extends out of the top plate, and guide bearings are sleeved between the guide rods and the top plate, which are used to guide when the cylinder drives the lifting plate to move up and down in the vertical direction, thereby improving the stability of the lifting plate during movement, and the top of the guide rod can be clamped above the top plate to limit the moving position of the lifting plate.

[0016] Furthermore, the rotating mechanism comprises a second motor, a primary gear, a secondary gear and a drill rod, the second motor is vertically fixed on the lifting plate, the output shaft of the second motor passes through the lifting plate and is coaxial with the primary gear and fixedly connected to achieve synchronous rotation, and the bottom end of the output shaft of the second motor is fixedly connected to a drill rod;

[0017] The first gear is meshed with a second gear on both sides opposite to each other. Two drill rods are movably connected in the lifting plate. A second gear is fixedly mounted in the middle of each drill rod. An icebreaker drill is vertically fixedly connected to the bottom end of each drill rod. The first gear is driven to rotate by the second motor, and the second gear is driven to rotate synchronously by meshing transmission. The drill rod is driven to rotate by the second gear, so that the output shaft of the second motor and the drill rod rotate synchronously, and the three icebreaker drills rotate synchronously. At the same time, the lifting plate is driven to move up and down in the vertical direction by the cylinder, so that the position of the icebreaker drill in the vertical direction can be adjusted, and the icebreaker drill is always kept in contact with the ice surface and rotated to drill holes and break ice.

[0018] Furthermore, the top end of the drill rod extends out of the lifting plate, and a rotating bearing is sleeved between the drill rod and the lifting plate, and between the output shaft of the second motor and the lifting plate. By providing the rotating bearing, the flexibility and stability of the rotation of the drill rod and the output shaft of the second motor can be improved.

[0019] Furthermore, a first cover is fixed on the top plate, and the cylinder is arranged in the first cover; a second cover is fixed above the lifting plate, and the second motor is arranged in the second cover; a third cover is fixed below the lifting plate, and the first-stage gear and the second-stage gear are arranged in the third cover, and the drill rod and the output shaft of the second motor extend out of the third cover. The first cover, the second cover, and the third cover all play a protective role, preventing the cylinder, the second motor, the first-stage gear, and the second-stage gear from being damaged by external collisions during operation.

[0020] The beneficial effects of the utility model are as follows:

[0021] The ice-breaking mechanism of the utility model cooperates with the propeller at the rear of the icebreaker to provide the forward power. When breaking ice, the ice surface is cut and ground by the ice grinding wheel and the ice breaking knife in different areas. At the same time, the distance between the ice-breaking drill head and the ice surface is adjusted by the lifting mechanism and the rotating mechanism. The ice layer in front of the working area of ​​the grinding mechanism is forced downward and a hole is drilled to destroy the integrity of the ice layer, so that the stress is concentrated at the drilling position. The ice layer in the area is destroyed by the grinding mechanism, and the ice layer is quickly broken and crushed. The ice-breaking mechanism of the utility model can quickly cut, grind and crush the ice surface in the forward direction of the icebreaker, ensure the smooth passage of the ship, have high ice-breaking efficiency, low energy consumption, low production and manufacturing cost, and are also convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the internal structure of the ice-breaking mechanism used in conjunction with the propeller of the icebreaker in the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the ice-breaking mechanism including the third cover shell of the utility model;

[0025] Figure 3 It is another three-dimensional structural schematic diagram of the ice-breaking mechanism including the third cover shell of the utility model;

[0026] Figure 4 It is a schematic structural diagram of the ice-breaking mechanism including the third housing of the utility model after partial sectioning;

[0027] Figure 5 It is a front view of the ice breaking mechanism including the third housing of the utility model;

[0028] Figure 6 It is a right side view of the ice breaking mechanism including the third cover of the utility model;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the ice-breaking mechanism including the first cover shell, the second cover shell and the third cover shell in the utility model.

[0030] Description of the numbers in the figure:

[0031] 1. Hull connecting frame; 2. Grinding mechanism; 21. First motor; 22. Rotating shaft; 23. Ice grinding wheel; 24. Ice breaking knife; 25. Positioning flange; 26. Boss; 27. Motor box; 3. Ice drilling mechanism; 31. Mounting frame; 311. Top plate; 32. Lifting mechanism; 321. Cylinder; 322. Middle plate; 323. Lifting plate; 324. Piston rod; 325. Connecting rod; 326. Guide rod; 327. Guide bearing; 33. Rotating mechanism; 331. Second motor; 332. First gear; 333. Second gear; 334. Drill rod; 335. Rotating bearing; 34. Ice breaking drill; 4. First cover shell; 5. Second cover shell; 6. Third cover shell. DETAILED DESCRIPTION

[0032] The following is a specific embodiment of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, it does not mean that the features of this utility model are limited to the embodiment.

[0033] In the description of this embodiment, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "back" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. The terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 this embodiment can be understood according to specific circumstances.

[0035] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1As shown, in one embodiment of the utility model, an icebreaking mechanism used in conjunction with an icebreaker propeller is provided, comprising a hull connecting frame 1 and a grinding mechanism 2 and an ice drilling mechanism 3 connected thereto. The hull connecting frame 1 is fixed to the lower outer part of the bow of the icebreaker, and the propeller installed at the stern of the icebreaker rotates to drive the water flow as the forward power, so that the icebreaking mechanism first contacts the ice layer to break the ice during the forward movement of the icebreaker.

[0037] refer to Figure 1 , Figure 2 and Figure 4 The grinding mechanism 2 includes a first motor 21, a rotating shaft 22 fixedly connected to and coaxial with the output shaft of the first motor 21, and a plurality of groups of ice grinding wheels 23 and ice breaking knives 24 sleeved on the rotating shaft 22. The rotating shaft 22 is horizontally arranged and its two ends are rotatably connected to the hull connecting frame 1, and the ice grinding wheels 23 and ice breaking knives 24 are fixedly connected to the rotating shaft 22 and rotate synchronously.

[0038] refer to Figure 1 The ice drilling mechanism 3 includes a mounting frame 31, a lifting mechanism 32 disposed on the mounting frame 31, a rotating mechanism 33 connected to the lifting mechanism 32, and an ice breaking drill 34 connected to the rotating mechanism 33. The ice breaking drill 34 is located in front of the grinding mechanism 2, the mounting frame 31 is fixedly connected to the hull connecting frame 1, the lifting mechanism 32 drives the rotating mechanism 33 to move up and down in the vertical direction, and the rotating mechanism 33 drives the ice breaking drill 34 to rotate in the horizontal direction.

[0039] In this embodiment, the icebreaker mechanism is installed at the front end of the bow of the icebreaker through the hull connecting frame 1, and the propeller installed at the rear of the icebreaker rotates to drive the water flow as the forward power. When breaking ice, on the one hand, the ice surface is cut and polished by the ice grinding wheel 23 and the ice breaker 24 to cause various forms of damage. The ice breaker 24 divides the large area of ​​ice into small areas of ice, and cooperates with the ice grinding wheel 23 to longitudinally impact and break the cut small area of ​​ice, so as to facilitate the breaking of the ice. On the other hand, a lifting mechanism 32 and a rotating mechanism are set to adjust the icebreaker drill bit 34 to apply force downward to the ice layer in front of the working area of ​​the grinding mechanism 2 and drill holes. The ice drilling mechanism mainly drives the icebreaker drill bit 34 to drill holes to destroy the integrity of the ice layer, so that the stress is concentrated at the drilling position, and at the same time, force is applied downward to cooperate with the grinding mechanism 2 to destroy the ice layer in this area, so that the ice layer can be quickly broken and crushed.

[0040] refer to Figure 4 and Figure 5 , positioning flanges 25 are respectively sleeved and fixedly connected at both ends of the rotating shaft 22, an ice-breaking knife 24 is fixedly connected between two adjacent ice-grinding wheels 23, and the positioning flange 25 is fixedly connected to the ice-grinding wheels 23. A boss 26 is arranged around the middle of the rotating shaft 22, and the ice-grinding wheels 23, the ice-breaking knife 24, the positioning flange 25 and the boss 26 are fixedly connected along the axial direction by bolts.

[0041] refer to Figure 1 and Figure 5 The outer diameter of the ice-breaking blade 24 is larger than that of the ice-grinding wheel 23, and a plurality of protrusions are evenly arranged on the circumferential surface of the ice-grinding wheel 23. When breaking ice, the ice-breaking blade 24 first contacts the ice layer to cut it, and then the ice-grinding wheel 23 impacts and grinds the small area of ​​ice after the ice-breaking, so as to reduce the difficulty of breaking the ice layer.

[0042] refer to Figure 4 The first motor 21 is fixedly installed in the motor box 27, the motor box 27 is fixedly connected to the hull connecting frame 1, and the output shaft of the first motor 21 horizontally passes through the motor box 27 and is connected to the rotating shaft 22.

[0043] refer to Figure 1 , Figure 3 and Figure 4 The lifting mechanism 32 includes a cylinder 321, an intermediate plate 322 and a lifting plate 323. The cylinder 321 is vertically fixed on the top plate 311 of the mounting frame 31. The piston rod 324 of the cylinder 321 is connected to the intermediate plate 322. The lifting plate 323 is arranged below the intermediate plate 322 and is fixedly connected to the intermediate plate 322 by at least three connecting rods 325. The piston rod 324 is driven by the cylinder 321 to extend and retract in the vertical direction, and the intermediate plate 322 and the lifting plate 323 are driven to move up and down in the vertical direction.

[0044] refer to Figure 2 and Figure 6 Four guide rods 326 are movably connected between the lifting plate 323 and the top plate 311. The bottom of the guide rods 326 is fixedly connected to the lifting plate 323, and the upper part of the guide rods 326 extends out of the top plate 311. A guide bearing 327 is sleeved between the guide rods 326 and the top plate 311, which is used to guide the lifting plate 323 when the cylinder 321 drives the lifting plate 323 to move up and down in the vertical direction, thereby improving the stability of the lifting plate 323 during the movement process, and the top of the guide rod 326 can be clamped above the top plate 311 to limit the moving position of the lifting plate.

[0045] refer to Figure 1 and Figure 4 The rotating mechanism 33 includes a second motor 331, a first gear 332, a second gear 333 and a drill rod 334. The second motor 331 is vertically fixed on the lifting plate 323. The output shaft of the second motor 331 passes through the lifting plate 323 and is coaxial with the first gear 332 and fixedly connected to achieve synchronous rotation. The bottom end of the output shaft of the second motor 331 is fixedly connected to a drill rod 334. Figure 1As shown, the first gear 332 is meshed with a second gear 333 on both sides opposite to each other, and two drill rods 334 are movably connected in the lifting plate 323. A second gear 333 is fixedly sleeved in the middle of each drill rod 334, and an ice-breaking drill 34 is vertically fixedly connected to the bottom end of each drill rod 334. The top of the drill rod 334 extends out of the lifting plate 323, and a rotating bearing 335 is sleeved between the drill rod 334 and the lifting plate 323, and between the output shaft of the second motor 331 and the lifting plate 323. By providing the rotating bearing 335, the flexibility and stability of the rotation of the drill rod 334 and the output shaft of the second motor 331 can be improved.

[0046] The first-stage gear 332 is driven to rotate by the second motor 331, and the second-stage gear 333 is driven to realize synchronous rotation through meshing transmission, and the drill rod 334 is driven to rotate through the second gear 333, so that the three ice-breaking drill bits 34 are driven to rotate synchronously through the synchronous rotation of the output shaft of the second motor 331 and the drill rod 334, and at the same time, the lifting plate 323 is driven to move up and down in the vertical direction through the cylinder 321, so that the position of the ice-breaking drill bit 34 in the vertical direction can be adjusted, so that the ice-breaking drill bit 34 is always kept in contact with the ice surface and rotated to drill holes and break ice.

[0047] refer to Figure 1 and Figure 7 , a first cover shell 4 is fixed on the top plate 311, and the top ends of the cylinder 321 and the guide rod 326 are arranged in the first cover shell 4. A second cover shell 5 is fixed above the lifting plate 323, and the top ends of the second motor 331 and the drill rod 334 are arranged in the second cover shell 5. A third cover shell 6 is fixed below the lifting plate 323, and the first-stage gear 332 and the second-stage gear 333 are arranged in the third cover shell 6, and the output shaft of the drill rod 334 and the second motor 331 extends out of the third cover shell 6. The first cover shell 4, the second cover shell 5 and the third cover shell 6 all play a protective role, preventing the cylinder 321, the second motor 331, the first-stage gear 332 and the second-stage gear 333 from being damaged by external collisions during operation.

[0048] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Therefore, any technical solution that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An icebreaking mechanism used in conjunction with an icebreaker propeller, characterized in that: It comprises a hull connecting frame (1) and a grinding mechanism (2) and an ice drilling mechanism (3) connected thereto, wherein the hull connecting frame (1) is fixed to the lower outer side of the bow of the icebreaker; The grinding mechanism (2) comprises a first motor (21), a rotating shaft (22) fixedly connected to and coaxial with the output shaft of the first motor (21), and a plurality of groups of ice grinding wheels (23) and ice breaking knives (24) sleeved on the rotating shaft (22); the rotating shaft (22) is horizontally arranged and its two ends are respectively rotatably connected to the hull connecting frame (1); the ice grinding wheels (23) and ice breaking knives (24) are fixedly connected to the rotating shaft (22) and rotate synchronously; The ice drilling mechanism (3) comprises a mounting frame (31), a lifting mechanism (32) arranged on the mounting frame (31), a rotating mechanism (33) connected to the lifting mechanism (32), and an ice breaking drill bit (34) connected to the rotating mechanism (33); the ice breaking drill bit (34) is located in front of the grinding mechanism (2); the mounting frame (31) is fixedly connected to the hull connecting frame (1); the lifting mechanism (32) drives the rotating mechanism (33) to move up and down in the vertical direction; and the rotating mechanism (33) drives the ice breaking drill bit (34) to rotate in the horizontal direction.

2. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 1, characterized in that: Positioning flanges (25) are respectively sleeved and fixedly connected at both ends of the rotating shaft (22); an ice-breaking knife (24) is fixedly connected between two adjacent ice-grinding wheels (23); and the positioning flanges (25) are fixedly connected to the ice-grinding wheels (23).

3. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 2, characterized in that: A boss (26) is provided in the middle of the rotating shaft (22), and the ice grinding wheel (23), the ice breaking blade (24), the positioning flange (25) and the boss (26) are fixedly connected along the axial direction by bolts.

4. The icebreaking mechanism used in conjunction with an icebreaker propeller according to claim 1, characterized in that: The outer diameter of the ice-breaking blade (24) is greater than the outer diameter of the ice-grinding wheel (23), and a plurality of protrusions are evenly arranged on the circumferential surface of the ice-grinding wheel (23).

5. The icebreaking mechanism used in conjunction with an icebreaker propeller according to claim 1, characterized in that: The first motor (21) is fixedly installed in a motor box (27), the motor box (27) is fixedly connected to the hull connecting frame (1), and the output shaft of the first motor (21) horizontally passes through the motor box (27) and is connected to the rotating shaft (22).

6. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 1, characterized in that: The lifting mechanism (32) comprises a cylinder (321), an intermediate plate (322) and a lifting plate (323); the cylinder (321) is vertically fixed on a top plate (311) of the mounting frame (31); a piston rod (324) of the cylinder (321) is connected to the intermediate plate (322); the lifting plate (323) is arranged below the intermediate plate (322) and is fixedly connected to the intermediate plate (322) by at least three connecting rods (325).

7. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 6, characterized in that: Four guide rods (326) are movably connected between the lifting plate (323) and the top plate (311); the bottom of the guide rods (326) is fixedly connected to the lifting plate (323); the upper part of the guide rods (326) extends out of the top plate (311); and guide bearings (327) are sleeved between the guide rods (326) and the top plate (311).

8. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 6, characterized in that: The rotating mechanism (33) comprises a second motor (331), a first-stage gear (332), a second-stage gear (333) and a drill rod (334); the second motor (331) is vertically fixed on the lifting plate (323); the output shaft of the second motor (331) passes through the lifting plate (323) and is coaxially and fixedly connected to the first-stage gear (332); the bottom end of the output shaft of the second motor (331) is fixedly connected to a drill rod (334); The left and right opposite sides of the primary gear (332) are respectively meshed and connected with a secondary gear (333), and two drill rods (334) are movably connected in the lifting plate (323). A secondary gear (333) is fixedly sleeved in the middle of each drill rod (334), and an ice-breaking drill (34) is vertically fixedly connected to the bottom end of each drill rod (334).

9. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 8, characterized in that: The top end of the drill rod (334) extends out of the lifting plate (323), and a rotating bearing (335) is sleeved between the drill rod (334) and the lifting plate (323) and between the output shaft of the second motor (331) and the lifting plate (323).

10. The ice-breaking mechanism used in conjunction with an icebreaker propeller according to claim 8, characterized in that: A first cover shell (4) is fixed on the top plate (311), and the cylinder (321) is arranged in the first cover shell (4); a second cover shell (5) is fixed above the lifting plate (323), and the second motor (331) is arranged in the second cover shell (5); a third cover shell (6) is fixed below the lifting plate (323), the first-stage gear (332) and the second-stage gear (333) are arranged in the third cover shell (6), and the drill rod (334) and the output shaft of the second motor (331) extend out of the third cover shell (6).

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