Reinforcing and fixing structure for rotating shaft of flap-type rudder of ship

A fixed structure, flap rudder technology, applied in the field of ship flap rudder, can solve problems such as falling off, performance degradation, aileron and main wing rotation problems, etc., to avoid corrosion, small strength loss, and effectively fix the hinge shaft.

Pending Publication Date: 2022-01-28

SHANGHAI MERCHANT SHIP DESIGN & RES INST

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AI-Extracted Technical Summary

Problems solved by technology

[0003] Due to the frequent rotation between the aileron and the main wing of the flap rudder, the requirements for the hinge axis 1 are very high, and the strength of the hinge axis 1 is required to be better, and the rotation is flexible. The exposed end of 1 is installed with a sealing plate 3, and then the sealing plate 3 and the hinge shaft 1 are fixed by bolts 2, thereby limiting the rotation of the hinge shaft

[0004] The disadvantage of the prior art is that when the main wing and aileron of the flap rudder are installe...

Method used

[0028] In an optional embodiment, the bushing 4 is fixedly connected with the 4 main wing lugs 11 by interference fit, and the bushing 4 is made of polymer material, and the replacement cost is low.

[0029] In an optional embodiment, the wedge-shaped locking pin 40 is a cylindrical locking pin provided with a partial slope 41 in the axial direction. ...

Abstract

The invention provides a reinforcing and fixing structure for a rotating shaft of a flap-type rudder of a ship. Notches with the same height are formed in a hinge shaft penetrating through a main wing lug plate and a lining, and the bottom surface of the notch of the hinge shaft is an inclined surface; and at least one conical through hole is formed in the main wing lug plate in the thickness direction in a penetrating mode, a wedge-shaped lock pin which transversely penetrates through the hinge shaft and the opening of the lining at the same time is arranged in each conical through hole, and the wedge-shaped lock pins make close contact with the inner walls of the conical through holes and the inclined face of the hinge shaft. Waterproof mechanisms are arranged at the two ends of the conical through hole to seal the conical through hole. The wedge-shaped lock pin penetrates through the main wing lug plate, the lining and the hinge shaft from the side face, the effect of effectively fixing the hinge shaft can be achieved, meanwhile, the strength loss of the hinge shaft is minimum when the wedge-shaped lock pin penetrates through the middle relative to the position, and due to the fact that the hinge shaft only needs to be provided with a small notch and is sealed through epoxy resin, corrosion of the fixing pin shaft is avoided.

Application Domain

Steering rudders

Technology Topic

Fixed hingeMechanical engineering +3

Image

Examples

Experimental program(1)

Example Embodiment

[0020] In the following description, a large amount of specific details are given to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, there is no description thereof in the art.

[0021] In order to thorough understanding, the present invention will be proposed in the following description, in order to illustrate the technical solutions of the present invention. The preferred embodiment of the present invention will be described in detail, but except for these detailed description, the present invention may also have other embodiments.

[0022] Refer Figure 2-6 As shown, the present invention provides a reinforcing fixing structure of a vessel flaps rudder shaft containing a wing 10 and a wing 20, and the wing 10 is provided with a wing ear plate 11 adjacent to the side of the flame 20. A splicing ear plate 21 located at the upper and lower ends of the mainfoil ear is provided on one side of the wing 20 adjacent to the main wing 10, and the main foil ear plate 11 and the flap helic plate 21 are connected by a vertical hinge shaft 1. A bushing 4 is provided between the shaft 1 and the main foil ear plate 11, and the flaps 21 is provided.

[0023] The hinge shaft 1 and the bushing 4 passing through the main foil ear plate 11 are opened with the same height a gap 6 and a gap 5, and the outer surface of the hinge shaft 1 is a slope. The main foil ear plate 11 penetrates at least one conical through hole in the thickness direction, and each of the tapered via holes are simultaneously passed through the hinge shaft 1, the wedge-shaped lock pin 40 of the bushing 4, and the wedge The lock pin 40 is in close contact with the inner wall of the conical passage and the hinge shaft 1, and the waterproof mechanism 42 is provided in both ends of the tapered through hole to seal the conical passage.

[0024] The advantage of the present invention is that the mainfoil shaft 11, the bushing 4, and the hinge shaft 1 can be effectively fixed by the wedge-shaped lock pin 40, which can actually fix the hinge shaft 1, avoiding the sailing time The rear bolt 2, the sealing plate 3 is dropped by seawater, causing the hinge shaft 1 to fall from the ear plate; the wedge-shaped lock pin 40 is slightly smaller than the tapered through hole opened on the mainfoil ear plate 11, so that the wedge-shaped lock pin 40 There is a gap, close to the waterproof mechanism 42, which prevents the fixed pin and etching. When the bushing 4 reaches a certain period of time, we remove the waterproof mechanism 42 and the wedge lock pin 40, and then replace the bushing, it is easy to reuse.

[0025] According to the actual demand, a wedge-shaped lock pin 40 can be provided in the main wedge plate 11, or a plurality of wedge lock pins 40 can be provided.

[0026] In an alternative embodiment, the length of the wedge-shaped lock pin 40 is smaller than the axial length of the current cone through hole, and the two ends of the wedge-shaped lock pin 40 in the mainfoil end plate 11 and the tapered through holes are joined. The end opening has a distance and blocks it with waterproof mechanism 42.

[0027] In an alternative embodiment, the waterproof mechanism 42 is flush with the outer surface of the mainfoil ear plate 11, and the waterproof mechanism 42 is an epoxy resin.

[0028] In an alternative embodiment, the bushing 4 is fixed to the 4 mainfoil ear plate 11, and the bushing 4 is made of a polymer material, and the replacement cost is low.

[0029] In an alternative embodiment, the wedge-shaped lock pin 40 is a cylindrical lock pin of a partial bevel 41 in the axial direction. like Figure 5-6 As shown, the front end of the wedge-shaped lock pin 40 is provided with a slope 41, which is used to contact the tapered through hole and the slope 6 of the hinge shaft 1; the rear end of the wedge-shaped lock pin 40 is a cylindrical surface to ensure a wedge-shaped lock. The pin 40 is guaranteed to be good contact with the main wing ear plate 11.

[0030] The preferred embodiment of the present invention is described above. It is to be understood that the present invention is not limited to the above-described specific embodiments, in which the equipment and structures described in detail should be understood to be implemented in the art; any technician, those skilled in the art, without departure In the case of the scope of the invention, there may be an equivalent example of the technical solutions of the present invention, or an equivalent embodiment of the present invention can be made, or an equivalent change can be made to the equivalent change, or modify the substantial content of the present invention. . Therefore, any simple modification, equivalent change, and modification of the above embodiments are still within the scope of the technical solutions of the present invention in accordance with the technical solutions of the present invention, which are not departed from the technical solution of the present invention.

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Description & Claims & Application Information

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Reinforcing and fixing structure for rotating shaft of flap-type rudder of ship

A fixed structure, flap rudder technology, applied in the field of ship flap rudder, can solve problems such as falling off, performance degradation, aileron and main wing rotation problems, etc., to avoid corrosion, small strength loss, and effectively fix the hinge shaft.

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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