Stern propelling structure of ship

Abstract

The utility model provides a stern propulsion structure of a ship, which comprises propeller mechanisms and a grounding lifting mechanism, a hinge column is arranged at the tail of the ship, and the two propeller mechanisms are symmetrically hinged on the hinge column; the grounding lifting mechanism comprises a grounding structural plate and connecting rods hinged to the two sides of the grounding structural plate, the two connecting rods are hinged to the two propeller mechanisms respectively, an extension rod is arranged at the position, close to the bow of the ship, of the grounding structural plate, and one end of the extension rod is hinged to the bottom of the ship. The ship has the advantages that the propeller mechanism is matched with the grounding lifting mechanism, and the technical problem that an existing propeller mechanism arranged at the bottom of the ship is prone to grounding damage is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship technology field especially relates to a ship's stern propulsion structure. BACKGROUND

[0002] The ship stern propulsion structure, i.e. the propeller mechanism, is an important component of modern ships, and its design and arrangement directly affect the navigation performance and safety of the ship. In the current technology, in order to ensure the stability of the ship, the propeller is usually placed at the position close to the stern on the bottom of the ship body. Such layout not only helps to reduce the center of gravity of the ship and improve the overall stability, but also effectively utilizes the guiding effect of the ship body on the water flow to improve the propulsion efficiency.

[0003] However, this setting also brings challenges. When the ship enters the shallow water area, such as river, estuary or coastal shoal area, due to the low position of the propeller close to the ship bottom, the risk of propeller bottom touching is increased. Once the propeller touches the seabed or underwater obstacles, the propeller blades are easily deformed or even broken, and in severe cases, the entire propulsion system is damaged, so that the ship loses power and brings great hidden dangers to navigation safety. SUMMARY

[0004] In view of the deficiencies existing in the prior art, the utility model provides a ship stern propulsion structure, which solves the technical problem that the propeller mechanism arranged at the bottom of the ship is easy to be damaged by bottom touching.

[0005] According to the ship stern propulsion structure recorded in the embodiment of the utility model, which comprises:

[0006] The propeller mechanism: the stern of the ship is provided with a hinged column, and the propeller mechanism is provided with two symmetrical hinged columns on the hinged column;

[0007] The bottom touching lifting mechanism: the bottom touching lifting mechanism comprises a bottom touching structure plate and connecting rods hinged on both sides of the bottom touching structure plate, two connecting rods are respectively hinged with two propeller mechanisms, the bottom touching structure plate is provided with an extension rod close to the bow of the ship, and one end of the extension rod is hinged with the bottom of the ship.

[0008] The technical principle of the utility model is that when the ship enters the shoal, the bottom touching structure plate located at the bottom of the ship will first contact the riverbed, and then drive the two propeller mechanisms to rotate around the hinged column to the two sides of the ship through the connecting rods, so that the propeller mechanism moves upward to the two sides before the bottom touching occurs, and ensures that it does not contact the riverbed, and when the water level becomes deep, the propeller mechanism will sink back to the bottom position due to the weight.

[0009] Compared with the prior art, the utility model has the advantages that the propeller mechanism cooperates with the bottom-touching lifting mechanism, and the technical problem of the propeller mechanism arranged at the bottom of the ship being easily damaged is solved.

[0010] Further, the propeller mechanism comprises a hinged rod and a motor, the motor is installed at one end of the hinged rod, the other end of the hinged rod is hinged to a hinged column, a rotating paddle is arranged on the rotating shaft of the motor, and the connecting rod is hinged at the middle part of the hinged rod.

[0011] Further, the bottom-touching structure plate comprises a plate part, a supporting fence and a collision roller, supporting springs are uniformly arranged between the supporting fence and the plate part, the connecting rod and the extension rod are arranged on the supporting fence, the plate part is arranged on the side away from the ship, a rectangular opening is arranged in the middle part of the plate part, and the collision roller is uniformly arranged in the rectangular opening along the length direction of the ship.

[0012] The collision roller directly contacts the river bottom and rolls along the riverbed, and the supporting spring provides buffering for the ship, so that the slight fluctuation of the river bottom does not cause the propeller mechanism to move up and down.

[0013] Further, the plate part is provided with a reinforcing rib on the side close to the ship body, and the reinforcing rib is perpendicular to the collision roller.

[0014] Further, an elastic connecting belt is arranged between the hinged parts of the two connecting rods and the two hinged rods.

[0015] Further, a compression spring is arranged between the extension rod and the ship bottom.

[0016] Further, two protective covers are arranged on the outer side of the rotating paddle, and a supporting rod is arranged between the protective cover and the hinged rod.

[0017] The rotating paddle is prevented from touching objects on both sides, such as other ships, riverbanks, floating objects, etc.

[0018] Further, the plate part is in an arc-shaped structure, and the arc-shaped structure is convex to the side away from the ship. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a ship structure schematic view with a ship tail propulsion structure of the utility model embodiment 1.

[0020] Figure 2 It is a ship tail propulsion structure structure schematic view of the utility model embodiment 1.

[0021] Figure 3 It is a propeller mechanism structure schematic view of the utility model embodiment 1.

[0022] Figure 4It is the structure schematic view of the bottom-touching structure plate of the embodiment 1 of the utility model.

[0023] Figure 5 It is the structure schematic view of the bottom-touching structure plate of the embodiment 1 of the utility model.

[0024] Figure 6 It is the extension rod connecting structure schematic view of the embodiment 2 of the utility model.

[0025] Figure 7 It is the stern propulsion structure structure schematic view of the embodiment 3 of the utility model.

[0026] Figure 8 It is the bottom-touching structure plate structure schematic view of the embodiment 4 of the utility model.

[0027] In the above drawing: 1, ship;11, articulated column;2, propeller mechanism;21, articulated rod;22, motor;23, rotating paddle;24, protective cover;241, support rod;3, bottom-touching lifting mechanism;31, bottom-touching structure plate;311, plate part;3111, rectangular port;3112, reinforcing rib;312, support rail;313, collision roller;314, support spring;32, connecting rod;33, extension rod;331, compression spring;34, elastic connecting belt. DETAILED DESCRIPTION

[0028] The technical scheme in the utility model is further explained below in connection with the drawings and embodiments.

[0029] Embodiment 1

[0030] As Figures 1-2 The stern propulsion structure of the ship shown in the figure, including propeller mechanism 2 and bottom-touching lifting mechanism 3, wherein the tail of ship 1 is provided with an articulated column 11, and the propeller mechanism 2 is provided with two symmetrical articulated columns 11, so that the propeller mechanism 2 can rotate around the articulated column 11, and then can reciprocate to the bottom and both sides of the ship 1.

[0031] Specifically, the bottom-touching lifting mechanism 3 includes a bottom-touching structure plate 31 and a connecting rod 32 articulated on both sides of the bottom-touching structure plate 31, two connecting rods 32 are respectively articulated with two propeller mechanisms 2, forming a connecting rod mechanism, which can drive the propeller mechanism 2 to rotate, and the extension rod 33 is fixed near the bow of the ship 1, one end of the extension rod 33 is articulated with the bottom of the ship 1, so that the bottom-touching structure plate 31 is inclined to the stern, thereby reducing the resistance of the ship 1 running.

[0032] As Figures 2-3As shown in the figure, the propeller mechanism 2 includes a hinged rod 21 and a motor 22, wherein the motor 22 is installed at one end of the hinged rod 21, the other end of the hinged rod 21 is hinged on the hinge column 11, and a rotating paddle 23 is arranged on the rotating shaft of the motor 22 for driving the ship 1 to move. The connecting rod 32 is hinged at the middle part of the hinged rod 21.

[0033] As shown in the figure, Figures 4-5 The bottom structure plate 31 includes a plate part 311, a support bar 312 and a collision roller 313, wherein the support spring 314 is uniformly arranged between the support bar 312 and the plate part 311, which is used to buffer the impact of the river bottom to the propeller mechanism 2. The connecting rod 32 and the extension rod 33 are arranged on the support bar 312. The plate part 311 is arranged on the side away from the ship 1, which is used to directly contact the riverbed. The middle part of the plate part 311 is provided with a rectangular port 3111, and the collision roller 313 is uniformly arranged along the length direction of the ship 1 in the rectangular port 3111, so that the collision roller 313 can roll on the river bottom.

[0034] As shown in the figure, Figures 4-5 The plate part 311 is provided with a reinforcing rib 3112 on the side close to the ship body, and the reinforcing rib 3112 is perpendicular to the collision roller 313, which is used to enhance the strength of the plate part 311.

[0035] As shown in the figure, Figure 2 The elastic connecting belt 34 is arranged between the hinged parts of the two connecting rods 32 and the two hinged rods 21, which is used to provide elastic force, so that the propeller mechanism 2 can be in the position of the bottom of the ship 1 before the bottom structure plate 31 contacts the river bottom.

[0036] Embodiment 2

[0037] As shown in the figure, Figure 6 The difference between this embodiment and embodiment 1 is that the compression spring 331 is connected between the extension rod 33 and the ship bottom, which also plays the same role as the elastic connecting belt 34.

[0038] Embodiment 3

[0039] As shown in the figure, Figure 7 The difference between this embodiment and embodiment 1 is that two protective covers 24 are arranged on the outside of the rotating paddle 23, and the support rod 241 is connected between the protective cover 24 and the hinged rod 21, which is used to protect the rotating paddle 23.

[0040] Embodiment 4

[0041] As shown in the figure, Figure 8 The plate part 311 is an arc-shaped structure, and the arc-shaped structure is convex to the side away from the ship 1, which is helpful to reduce the wear of the plate part 311.

[0042] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A stern propulsion arrangement for a marine vessel, characterized by: The utility model relates to a ship with a propeller mechanism and a bottom-touching lifting mechanism, and belongs to the field of ship design. The propeller mechanism is arranged at the tail of the ship and comprises two symmetrical hinged rods hinged to the hinge column. The bottom-touching lifting mechanism comprises a bottom-touching structure plate and two connecting rods hinged to the two sides of the bottom-touching structure plate, and the two connecting rods are respectively hinged to the two propeller mechanisms.

2. A stern propulsion arrangement for a marine vessel as claimed in claim 1, characterized in that: The bottom-touching structure plate is provided with an extension rod near the bow of the ship, and one end of the extension rod is hinged to the bottom of the ship.

3. A ship's stern propulsion arrangement according to claim 1 or 2, characterized in that: The propeller mechanism comprises a hinge rod and a motor, the motor is arranged at one end of the hinge rod, the other end of the hinge rod is hinged to the hinge column, and a rotating propeller is arranged on the rotating shaft of the motor.

4. A stern propulsion arrangement for a marine vessel as claimed in claim 3, characterised in that: The connecting rod is hinged to the middle part of the hinge rod.

5. A stern propulsion arrangement for a marine vessel as claimed in claim 3, characterised in that: The bottom-touching structure plate comprises a plate part, a supporting fence and a collision roller, supporting springs are uniformly arranged between the supporting fence and the plate part, the connecting rod and the extension rod are arranged on the supporting fence, the plate part is arranged on the side away from the ship, a rectangular opening is arranged in the middle of the plate part, and the collision roller is uniformly arranged in the rectangular opening along the length direction of the ship.

6. A stern propulsion arrangement for a marine vessel as claimed in claim 1, characterized in that: The plate part is provided with a reinforcing rib near the side of the ship body, and the reinforcing rib is perpendicular to the collision roller.

7. A stern propulsion arrangement for a marine vessel as claimed in claim 2, characterised in that: An elastic connecting belt is arranged between the hinge parts of the two connecting rods and the two hinge rods.

8. A stern propulsion arrangement for a marine vessel as claimed in claim 3, characterised in that: A compression spring is arranged between the extension rod and the bottom of the ship. Two protective covers are arranged outside the rotating propeller, and a supporting rod is arranged between the protective cover and the hinge rod. The plate part is in an arc structure, and the arc structure is convex to the side away from the ship.

Images