A rain cover for a ship side thruster motor

Abstract

The application provides a ship side thrust motor rain cover, which is based on a working well provided with a side thrust motor on a deck of a ship, the ship is internally provided with a side thrust motor containing space, and the side thrust motor is arranged in the side thrust motor containing space; the rain cover comprises a support part, a cover plate and a motor cover; one end of the support part is connected to the deck; the cover plate is connected to the support part and covers an area above the working well; the motor cover has a containing cavity, and an opening is formed in at least one end of the motor cover; and the other end of the motor cover is connected to the cover plate. By arranging the side thrust motor in a space not directly contacting the deck and then arranging the suspended cover plate to achieve rain and dust prevention of the side thrust motor, the technical problem that the ship side thrust motor is damaged due to resonance with the protection equipment caused by ship vibration in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship side thrust motor protection device design, in particular to a ship side thrust motor rain cover. BACKGROUND

[0002] In the prior art, one of the power sources of the ship is derived from the ship side thrust motor, which is connected with the propeller to drive the ship to run. The ship side thrust motor is a very important component, and part of the components are exposed to the open air. Therefore, the equipment needs to be protected from rain, dust and the like. In the prior art, no effective protection measures are implemented. Although simple protection facilities are installed, it is found that the natural frequency of the ship side thrust motor will resonate with the external protection measure equipment when the ship is sailing, thereby causing damage to the ship side thrust motor to a certain extent.

[0003] Therefore, there is an urgent need for a ship side thrust motor rain cover to help solve the technical problem that the ship side thrust motor resonates with the protection measure equipment due to ship vibration in the prior art, thereby damaging the ship side thrust motor. SUMMARY

[0004] In an embodiment, the present application provides a ship side thrust motor rain cover. The side thrust motor is installed in a space not directly contacting the deck, and rain and dust protection of the side thrust motor is achieved by a suspended cover plate, thereby helping to solve the technical problem that the ship side thrust motor resonates with the protection measure equipment due to ship vibration in the prior art, thereby damaging the ship side thrust motor.

[0005] Based on the deck of the ship, a side thrust motor working well is arranged on the deck, the working well penetrates the deck, a side thrust motor containing space is arranged inside the ship and located at the corresponding position of the working well, the side thrust motor is arranged in the side thrust motor containing space, and part of the side thrust motor is exposed from the working well to the deck;

[0006] The rain cover comprises a support part, a cover plate, and a motor cover.

[0007] One end of the support part is connected to the deck.

[0008] The cover plate is connected to the support part, so that the cover plate is suspended above the side thrust motor and covers the area above the working well.

[0009] The motor cover has a containing cavity, and an opening is formed at least one end of the motor cover. The other end of the motor cover is connected to the cover plate.

[0010] In an embodiment, the support part comprises at least four support feet.

[0011] The four support legs are arranged at the edges of the cover plate in four directions, and each of the support legs is connected with a steel pad at two ends, and the two ends of the steel pad are respectively fixed on the cover plate and the deck.

[0012] In an embodiment, the support part comprises at least four support legs.

[0013] The four support legs are arranged at the edges of the cover plate in four directions, and each of the support legs is connected with a steel pad at two ends, and the two ends of the steel pad are respectively fixed on the cover plate and the deck.

[0014] In an embodiment, the support leg is an angle steel profile.

[0015] In an embodiment, the cover plate has an arc-shaped eave towards the deck direction.

[0016] In an embodiment, the cover plate is a patterned aluminum plate.

[0017] In an embodiment, the motor cover is a cylindrical structure, the cylindrical structure has the accommodating cavity, one end of the cylindrical structure serves as the opening, and the other end of the cylindrical structure is connected with the cover plate.

[0018] In an embodiment, the other end of the cylindrical structure is provided with a flange, the flange is fixed on the cover plate through bolts, nuts, and corresponding mounting holes on the cover plate.

[0019] In an embodiment, the opening of the cylindrical structure extends below the deck.

[0020] In an embodiment, the side wall of the cylindrical structure is provided with a matrix arrangement of frequency adjustment holes.

[0021] In an embodiment, the rainproof cover of the ship side thrust motor comprises a handle.

[0022] The handle is mounted on the cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The figure is a structural schematic diagram of the rainproof cover of the ship side thrust motor on the ship in an embodiment of the present application.

[0024] Figure 2 The figure is a structural schematic diagram of the rainproof cover of the ship side thrust motor in another embodiment of the present application.

[0025] Figure 3 The figure is a top view schematic diagram of the rainproof cover of the ship side thrust motor in another embodiment of the present application.

[0026] REFERENCE SIGNS:

[0027] Ship 10

[0028] Deck 101

[0029] Side thrust motor 102

[0030] Working well 103

[0031] Side thrust motor accommodating space 104

[0032] Support part 1

[0033] Supporting leg 11

[0034] Steel backing plate 12

[0035] Cover plate 2

[0036] Arc-shaped eaves 21

[0037] Motor cover 3

[0038] Accommodating cavity 31

[0039] Opening 32

[0040] Adjusting frequency hole 33

[0041] Handle 4 Embodiments

[0042] In the prior art, part of the side thrust motor 102 is exposed on the deck, and a simple rain cover is directly installed above the side thrust motor 102 to prevent rain or dust from falling and affecting the side thrust motor 102. However, due to the inherent frequency of the ship during movement, which is influenced by many factors such as sea waves, propeller speed, etc., these factors will cause a certain change in the inherent frequency. This is a unique technical problem of setting up a motor on a ship or similar mobile carrier. Although the inherent frequency is a property of an object itself, such as mass, shape, material, etc., the above factors can change the inherent frequency of the side thrust motor 102 to a certain extent. Even if the rain cover avoids the inherent frequency, the influence of the fluctuation frequency of sea waves in different waters or other factors cannot completely avoid the frequency of the side thrust motor 102 and the rain cover. Resonance phenomenon may still occur, and the side thrust motor 102 is one of the important power sources of the ship. Therefore, it is urgent to design a ship side thrust motor rain cover to help solve the technical problem of damaging the ship side thrust motor due to resonance between the ship and the protection equipment caused by ship vibration in the prior art.

[0043] Figure 1 The structure of the ship side thrust motor rain cover on the ship in an embodiment of the present application is shown in the structure diagram, Figure 2 The structure of the ship side thrust motor rain cover in another embodiment of the present application is shown in the structure diagram,Figure 3 Figure 1 is a schematic view of a ship side thruster motor rain cover according to an embodiment of the present application. Figure 1 and Figure 2 and Figure 3 In one embodiment, the present application provides a ship side thruster motor rain cover.

[0044] Based on the deck 101 of the ship 10, the working well 103 provided with the side thruster motor 102 penetrates the deck 101, the side thruster motor accommodating space 104 is provided inside the ship 10 and located at the corresponding position of the working well 103, the side thruster motor 102 is placed in the side thruster motor accommodating space 104, and part of the side thruster motor 102 is exposed from the working well 103 to the deck 101.

[0045] The rain cover comprises a support part 1 and a cover plate 2, and a motor cover 3.

[0046] One end of the support part 1 is connected to the deck 101.

[0047] The cover plate 2 is connected to the support part 1, so that the cover plate 2 is suspended above the side thruster motor 102 and covers the area above the working well 103.

[0048] The motor cover 3 has an accommodating cavity 31, the accommodating cavity 31 penetrates at least one end of the motor cover 3 to form an opening 32, and the other end of the motor cover 3 is connected to the cover plate 2.

[0049] In this embodiment, the specific structure of the ship side thruster motor rain cover is provided, in addition to this, the side thruster motor 102 is also arranged on the deck 101 in this embodiment, it is pointed out here that although the deck 101 is integrated with the ship body, the rigidity connection between the base on which the side thruster motor 102 is installed on the ship body and the deck 101 has a large span, so the natural frequency of the part of the side thruster motor 102 and the natural frequency on the deck 101 are completely different, based on this design concept, the cover plate 2 is connected to the deck 101 through the support part 1, so that the natural frequency of the cover plate 2 is similar to that of the deck 101, which is greatly different from the natural frequency of the side thruster motor 102, thereby helping to avoid the resonance phenomenon.

[0050] In addition, preferably, the side thruster motor 102 and the cover plate 2 have a spacing distance of 250mm, which ensures a reasonable distance to prevent mutual influence after vibration.

[0051] The core idea of the design is to keep the rain cover and the side thruster motor 102 in a non-contact state as much as possible, reduce the possibility of being in the same frequency, and realize the purpose of being installed on the deck 101 from the structure.

[0052] In one embodiment, the support part 1 comprises at least four support feet 11.

[0053] Four support legs 11 are arranged at the edges of the cover plate 2 in four directions, and each support leg 11 is connected with a steel base plate 12 at both ends, and the two ends of the steel base plate 12 are respectively fixed on the cover plate 2 and the deck 101.

[0054] In the embodiment, a connection mode of four support legs 11 is provided, and the design principle is to reduce the contact position as much as possible and to stably realize the connection of the cover plate 2 to meet the basic requirements of force. The cover plate 2 needs to withstand the influence of sea wind and other relatively large external forces on the sea, so the fixation of the cover plate 2 is realized through the support in four directions. The steel base plate 12 is provided to provide a better welding transition part. In addition, it should be pointed out that there is a gap between the four support legs 11, which can facilitate the ventilation and heat dissipation of the side thrust motor 102.

[0055] In an embodiment, the support leg 11 is an angle steel profile.

[0056] In the embodiment, a specific implementation of the support leg 11 is provided. First, the support leg 11 is a length of angle steel, and the cross section is L-shaped. The connection area between the support leg 11 and the deck 101 belongs to a relatively small type among various types of materials, so as to further increase the natural frequency difference between the cover plate 2 and the side thrust motor 102.

[0057] In an embodiment, the cover plate 2 has an arc-shaped eave 21 towards the deck 101 in the four directions.

[0058] In the embodiment, an arc-shaped eave 21 is provided at the four edges of the cover plate 2. The cover plate 2 can adopt a rectangular plate, and the four edges are curved downwards to form the arc-shaped eave 21 towards the deck 101. In the case of sea waves or rain above, the water above can be discharged in time.

[0059] In an embodiment, the cover plate 2 is a patterned aluminum plate.

[0060] In the embodiment, the material of the cover plate 2 is provided. In the embodiment, a specific implementation of the cover plate 2 is disclosed.

[0061] In an embodiment, the motor cover 3 is a cylindrical structure, the cylindrical structure has a containing cavity 31, one end of the cylindrical structure is an opening 32, and the other end of the cylindrical structure is connected with the cover plate 2.

[0062] In the embodiment, a specific implementation of the motor cover 3 is also disclosed. The motor cover 3 is suspended over the side thruster motor 102, and the center line of the cylindrical structure preferably passes through the center of the side thruster motor 102. The motor cover 3 can further protect the side thruster motor 102 and adjust the natural frequency of the cover plate 2, because its shape changes the structure of the cover plate 2. The motor cover 3 is generally 1-3 mm thick, and its diameter can reach 700 mm. The thickness of the motor cover 3 forms a thin-walled structure for the overall structure of the motor cover 3.

[0063] In an embodiment, the other end of the cylindrical structure is provided with a flange 32, which is fixed to the cover plate 2 by bolts and nuts and corresponding mounting holes on the cover plate 2.

[0064] In the embodiment, a specific implementation of the cylindrical structure connected to the cover plate 2 is also disclosed. The fixing method above the motor cover 3 is a relatively rigid connection method. If the motor cover 3 is a thin-walled structure, its vibration will be easier and more obvious, which can adjust the natural frequency of the ship side thruster motor rain cover. The range of changeable natural frequency is increased.

[0065] In an embodiment, the opening 32 of the cylindrical structure extends below the deck 101.

[0066] In the embodiment, the spatial relationship between the opening 32 and the deck 101 is also disclosed, which provides better protection for the exposed part of the side thruster motor 102.

[0067] In an embodiment, the side wall of the cylindrical structure is provided with a matrix of frequency adjustment holes 33.

[0068] In the embodiment, a cylindrical structure with frequency adjustment holes 33 is provided. The natural frequency of the cover plate 2 is affected by the different arrangement of the frequency adjustment holes 33. When it is found that the ship side thruster motor rain cover is still likely to resonate with the motor cover 3, the size of the holes on the motor cover 3 and their positional relationship can be adjusted to further prevent resonance with minimal changes. The diameter of the frequency adjustment hole 33 is 50 mm, and the frequency adjustment hole 33 forms a matrix. The longitudinal spacing of the frequency adjustment hole 33 in the matrix is 100 mm, and the transverse spacing is also 100 mm. The size of the hole diameter and the transverse or longitudinal spacing will affect the final natural frequency.

[0069] In an embodiment, the ship side thruster motor rain cover includes a handle 4.

[0070] The handle 4 is mounted on the cover plate 2.

[0071] In this embodiment, a specific implementation of mounting the handle 4 on the cover plate 2 is provided. The handle 4 is in a U-shaped structure, and the two ends of the opening direction are connected to the cover plate 2, generally by welding. The handle 4 is in a horizontal state, which is convenient for installation or disassembly.

Claims

1. A rain cover for a ship side thruster motor, characterized in that, a working well (103) is provided on a deck (101) of a ship (10) and the working well (103) penetrates the deck (101), a side thruster motor accommodating space (104) is provided inside the ship (10) and located at a corresponding position of the working well (103), a side thruster motor (102) is placed in the side thruster motor accommodating space (104), and part of the side thruster motor (102) is exposed above the deck (101) from the working well (103); the rain cover comprises: a support part (1) connected at one end to the deck (101); a cover plate (2) connected to the support part (1) so that the cover plate (2) is suspended above the side thruster motor (102) and covers the area above the working well (103); a motor cover (3) having an accommodating cavity (31) that penetrates at least one end of the motor cover (3) to form an opening (32), and the other end of the motor cover (3) is connected to the cover plate (2); the support part (1) comprises: at least four support legs (11) arranged at the edges of the cover plate (2) in four directions, and each support leg (11) has a steel backing plate (12) connected at both ends, and the steel backing plates (12) at both ends are respectively fixed to the cover plate (2) and the deck (101); the cover plate (2) has an arc-shaped eave (21) towards the deck (101) around its periphery; the motor cover (3) is a cylindrical structure having the accommodating cavity (31), one end of the cylindrical structure serves as the opening (32), and the other end of the cylindrical structure is connected to the cover plate (2); the opening (32) of the cylindrical structure extends below the deck (101); adjustable frequency holes (33) are arranged in a matrix on the side wall of the cylindrical structure.

2. A marine vessel side thruster motor rain deflector according to claim 1, characterized in that, The support leg (11) is an angle steel profile.

3. A marine vessel side thruster motor rain deflector according to claim 2, characterised in that, The cover plate (2) is a patterned aluminum plate.

4. A marine vessel side thruster motor rain deflector according to claim 3, characterised in that, The other end of the cylindrical structure is provided with a flange, which is fixed to the cover plate (2) by bolts, nuts, and corresponding mounting holes in the cover plate (2).

5. A marine vessel side thruster motor rain deflector according to claim 4, characterised in that, The rain cover for the ship side thruster motor comprises: a handle (4) mounted on the cover plate (2).

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