Flow guide cover fixing structure combined with sacrificial anode

Abstract

The utility model provides an air guide sleeve fixing structure combined with a sacrificial anode, and relates to the technical field of air guide sleeves, the air guide sleeve fixing structure comprises an air guide sleeve, and the air guide sleeve is fixedly installed on a steering oar body through bolts; a wrench space is arranged at the bottom of the outer side of the flow guide cover, and a sacrificial anode is arranged in the middle of the inner side of the wrench space and fixedly connected with the outer wall of the flow guide cover through two sets of second screws. A mounting groove is formed in the bottom of the flow guide cover and located at an opening of the wrench space, a protection cover is arranged in the mounting groove, and the shape of the sacrificial anode is customized according to the shape of an inner cavity of the wrench space. According to the utility model, the sacrificial anode is filled into the wrench space, so that the residual space in the wrench space is reduced, the resistance generated by the wrench space is greatly reduced due to the reduction of the residual space, and meanwhile, the problem that the resistance is generated when the sacrificial anode is mounted on the surface of the propeller in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fairings, in particular to a fairing fixing structure combined with sacrificial anodes. Background Technique

[0002] The rudder and propeller fairing is generally fixed at the end of the propeller shaft and adopts a streamlined shape to reduce the water resistance and improve the hydrodynamic performance. Generally, the fixing of the fairing has nothing to do with the sacrificial anode. At the same time, in order to reduce the electrochemical corrosion of seawater on the surface of the thruster, the sacrificial anode is an essential configuration for the thruster. Generally, it adopts the standard required shape and size and is arranged on the surface of the underwater parts such as the conduit and well of the thruster.

[0003] The fairing is mostly fixed and installed by bolts. Because it needs to be tightened externally, enough wrench space must be left for assembling and fastening the screws. This part of the space destroys the smooth structure of the fairing surface and leaves grooves on the fairing surface, which will cause resistance when the propeller shaft rotates. Especially when part of the fairing is exposed above the water surface and the fasteners are large and numerous due to high power, the impact on efficiency is more obvious.

[0004] The sacrificial anode is arranged on the surface of the conduit. Although it adopts a streamlined outer shape structure, there will still be some resistance in the running direction.

[0005] To solve the above problems, we propose a fairing fixing structure combined with sacrificial anodes to solve the above problems. Content of the Utility Model

[0006] To solve the problems in the background technique, the utility model provides a fairing fixing structure combined with sacrificial anodes. Its specific implementation scheme is to customize the sacrificial anode according to the shape of the wrench space and fill the remaining wrench space in the fairing, so that the resistance generated by the wrench space is also greatly reduced due to the reduction of the remaining space. At the same time, it effectively solves the situation of generating resistance when the traditional technology installs the sacrificial anode on the surface of the thruster.

[0007] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0008] A fairing fixing structure combined with sacrificial anodes, including a fairing, and the fairing is fixedly installed on the rudder and propeller body by bolts.

[0009] A wrench space is arranged at the outer bottom of the fairing, a sacrificial anode is arranged in the middle of the inner side of the wrench space, and the sacrificial anode is fixedly connected to the outer wall of the fairing by two groups of second screws; an installation groove is opened at the bottom of the fairing, the installation groove is located at the opening of the wrench space, and a protective cover is arranged in the installation groove.

[0010] Preferably, the shape of the sacrificial anode is customized according to the inner cavity shape of the wrench space.

[0011] Preferably, the protective cover is located at the bottom of the sacrificial anode, and the protective cover is used to cover the opening of the wrench space and the sacrificial anode.

[0012] Preferably, the protective cover is embedded in the installation groove and fixedly installed at the bottom of the flow guide cover through multiple groups of first screws, and the protective cover continues the surface curve of the flow guide cover.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In this solution, by customizing the sacrificial anode according to the shape of the wrench space and filling the sacrificial anode into the wrench space, the remaining space in the wrench space is reduced, so that the resistance generated by the wrench space is also greatly reduced due to the reduction of the remaining space. At the same time, it effectively solves the problem of resistance generated by installing the sacrificial anode on the surface of the thruster in the traditional technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model without installing the sacrificial anode;

[0016] Figure 2 is a schematic structural diagram of the present utility model after installing the sacrificial anode;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the present utility model without installing the protective cover.

[0018] In the figure: 1, flow guide cover; 2, wrench space; 3, bolt; 4, installation groove; 5, protective cover; 6, first screw; 7, sacrificial anode; 8, second screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present application are to solve the problems in the above-mentioned background technology, and the general idea is as follows:

[0020] Embodiment: Refer to Figure 1 - Figure 3 As shown, a flow guide cover fixing structure combined with a sacrificial anode in this embodiment includes a flow guide cover 1, and the flow guide cover 1 is fixedly installed on the rudder propeller body through a bolt 3.

[0021] A wrench space 2 is arranged at the outer bottom of the flow guide cover 1, a sacrificial anode 7 is arranged in the middle of the inner side of the wrench space 2, and the sacrificial anode 7 is fixedly connected with the outer wall of the flow guide cover 1 through two groups of second screws 8; wherein, the shape of the sacrificial anode 7 is customized according to the inner cavity shape of the wrench space 2, which is convenient for installation and fills the wrench space 2 as much as possible, reducing the remaining space of the wrench space 2, thereby reducing the resistance.

[0022] An installation groove 4 is formed at the bottom of the fairing 1. The installation groove 4 is located at the opening of the wrench space 2. A protective cover 5 is arranged in the installation groove 4. The protective cover 5 is located at the bottom of the fairing 1. The protective cover 5 is used to cover and resist the opening of the wrench space 2 and the sacrificial anode 7, so as to prevent the sacrificial anode 7 from falling off due to loosening of the second screw 8 after long-term consumption, and effectively avoid the situation that the sacrificial anode 7 is stirred into the propeller blade after detachment.

[0023] The protective cover 5 is embedded in the installation groove 4 and fixedly installed at the bottom of the fairing 1 through multiple groups of first screws 6. The protective cover 5 continues the surface curve of the fairing 1, further improving the hydrodynamic performance.

[0024] The working principle of the present utility model is:

[0025] By opening a wrench space 2 at the outer bottom of the fairing 1, and at the same time, by customizing the sacrificial anode 7 according to the shape of the wrench space 2 and filling it into the wrench space 2, the resistance generated by the wrench space 2 is greatly reduced due to the reduction of the remaining space. At the same time, it effectively solves the problem of resistance generated by installing the sacrificial anode 7 on the surface of the thruster in the traditional technology.

[0026] In some instances, referring to Figure 1 is the state before the sacrificial anode 7 is installed. The fairing 1 is fixed on the rudder propeller body through bolts 3. At this time, in order to tighten the bolts 3, enough wrench space 2 must be left on the outside of the fairing 1, and this part of the space will inevitably affect the rotation efficiency of the rudder propeller;

[0027] In some instances, referring to Figure 2 is the situation after the sacrificial anode 7 is installed. At this time, the wrench space 2 is filled with the sacrificial anode 7, so as to reduce the remaining space in the wrench space 2, and the resistance generated by the wrench space 2 is greatly reduced due to the reduction of the remaining space;

[0028] Among them, the outer shape of the sacrificial anode 7 is customized according to the wrench space 2, which is not only convenient for installation but also fills the wrench space 2 as much as possible; the sacrificial anode 7 is fixedly installed on the outer wall of the fairing 1 by using two groups of second screws 8. When the fairing 1 needs to be removed, only the sacrificial anode 7 and the second screws 8 need to be removed first.

[0029] During the installation process, after the sacrificial anode 7 is installed, the protective cover 5 needs to be installed. The sacrificial anode 7 is blocked inside by the protective cover 5 to prevent the sacrificial anode 7 from falling off due to loosening of the second screw 8 after long-term consumption. Also, because it is close to the propeller blade, at this time, through the resistance of the protective cover 5, the situation that the fallen sacrificial anode 7 is stirred into the blade and causes damage is avoided.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flow deflector fixing structure combined with a sacrificial anode, characterized in that: It comprises a fairing (1), wherein the fairing (1) is fixedly mounted on the rudder propeller body by means of bolts (3); A wrench space (2) is provided at the outer bottom of the air deflector (1), a sacrificial anode (7) is provided at the inner middle of the wrench space (2), and the sacrificial anode (7) is fixedly connected to the outer wall of the air deflector (1) by two sets of second screws (8); The bottom of the air deflector (1) is provided with a mounting groove (4), the mounting groove (4) is located at the opening of the wrench space (2), and a protective cover (5) is arranged in the mounting groove (4).

2. The deflector fixing structure combined with a sacrificial anode according to claim 1, characterized in that: The shape of the sacrificial anode (7) is customized according to the inner cavity shape of the wrench space (2).

3. The deflector fixing structure combined with a sacrificial anode according to claim 2, characterized in that: The protective cover (5) is located at the bottom of the sacrificial anode (7), and the protective cover (5) is used to cover the opening of the wrench space (2) and the sacrificial anode (7).

4. The flow deflector fixing structure combined with a sacrificial anode according to claim 3, characterized in that: The protective cover (5) is embedded in the mounting groove (4) and is fixedly mounted on the bottom of the air deflector (1) by means of a plurality of sets of first screws (6); the protective cover (5) continues the surface curve of the air deflector (1).

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