Bow thruster horn mouth preparation process and assembly device thereof

Abstract

The invention relates to the technical field of ship construction, in particular to a bow thruster horn mouth manufacturing technology and an assembling device thereof.The bow thruster horn mouth manufacturing technology comprises an auxiliary cylinder, an adsorption assembly is arranged on the auxiliary cylinder and comprises an electromagnet, a switch and a power source, the electromagnet is electrically connected with the switch, the switch is electrically connected with the power source, and a mounting opening is formed in the auxiliary cylinder; and the electromagnets are fixedly arranged in the mounting openings, when a plate is placed on the auxiliary cylinder, the electromagnets work to attract the plate, the multiple mounting openings are formed in the auxiliary cylinder in the circumferential direction, and the welding device has the effect of facilitating welding.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a bow thruster bell mouth preparation process and an assembly device thereof. Background Art

[0002] Bow thruster, also known as bow propeller, is installed on the bow thruster of a ship to improve the maneuverability of the ship. The bell mouth is a guide plate connecting the thruster cylinder and the outer plate of the hull.

[0003] The bow thruster is composed of a power propeller, a cylinder connected to the propeller, and a bell-shaped outer plate to form an independent component. The connection between the cylinder and the bell-shaped outer plate can be independently manufactured in a bilaterally symmetrical manner. When manufacturing the common bell-shaped mouth, the bell-shaped mouth is usually divided into multiple parts. Dimension lines are drawn on the plate in advance, the plate is cut along the lines by a cutting machine, and then the plate is extruded and formed by a forming mold. Multiple formed plates are then spliced ​​together to form a bell-shaped mouth, and the joints of the plates are welded to obtain the desired bell-shaped mouth.

[0004] With regard to the above technical conditions, there is still a problem that when assembling the bell-mouth plates for welding, it is not easy to grab the plates because the plates are large and heavy. At the same time, the arc-shaped plates are easy to move, and multiple people need to cooperate with each other to complete the welding of all the plates. The process is extremely complicated, resulting in the defect of inconvenient welding.

[0005] Based on this, the present invention designs a bow thruster bell mouth preparation process and an assembly device thereof to solve the above problems. Summary of the invention

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bow thruster bellmouth assembly device, comprising an auxiliary cylinder, the auxiliary cylinder is provided with an adsorption assembly, the adsorption assembly comprises an electromagnet, a switch, and a power supply, the electromagnet is electrically connected to the switch, the switch is electrically connected to the power supply, an installation opening is opened on the auxiliary cylinder, the electromagnet is fixedly arranged in the installation opening, when a plate is placed on the auxiliary cylinder, the electromagnet works at this time to adsorb the plate, and a plurality of installation openings are circumferentially arranged on the auxiliary cylinder.

[0007] By adopting the above technical solution, when welding, the formed plate is placed on the side wall of the auxiliary cylinder, the switch is controlled to make the electromagnet work, and after the plate is placed on the auxiliary cylinder, the plate is adsorbed, thereby fixing the plate on the auxiliary cylinder, achieving the effect of facilitating welding.

[0008] Preferably, a marking line is provided on the auxiliary cylinder.

[0009] By adopting the above technical solution, marking lines are provided to facilitate the alignment of the plates.

[0010] Preferably, the auxiliary cylinder is made of titanium alloy material.

[0011] By adopting the above technical solution, the auxiliary cylinder made of titanium alloy can prevent damage caused by the welding process, thereby increasing the service life of the auxiliary cylinder.

[0012] Preferably, a support rod is fixedly provided in the auxiliary cylinder, a placement seat is fixedly provided on the support rod, and the switch and power supply are respectively fixedly provided on the placement seat.

[0013] By adopting the above technical solution, the support rod supports the auxiliary cylinder, reduces the shaking of the auxiliary cylinder, and stabilizes the auxiliary cylinder.

[0014] Preferably, a clearance gap is provided on the auxiliary cylinder.

[0015] By adopting the above technical solution, during welding, excess welding slag falls out through the clearance seam, thereby reducing the welding slag remaining on the auxiliary tube.

[0016] Preferably, a reinforcement plate is fixedly provided on the clearance seam.

[0017] By adopting the above technical solution, the reinforcement plate can improve the strength of the auxiliary tube and reduce the shaking of the auxiliary tube.

[0018] Preferably, a bow thruster bell mouth preparation process comprises the following steps: step 1, calculating the plate size of the bell mouth; step 2, cutting the plate according to the calculated data; step 3, extruding the cut plate to form a formed block plate; step 4, attaching the formed plate to the auxiliary tube; step 5, welding the block plate; step 6, after welding, removing the auxiliary tube from the bell mouth.

[0019] By adopting the above technical solution, the divided plates are placed on the auxiliary cylinder for welding, which does not require multiple people to support the welding, thus achieving the effect of facilitating welding for the workers.

[0020] Preferably, in step 1, calculating the size of the plate also includes dividing the bell mouth into eight equal parts for calculation, and in step 5, welding the divided plates is specifically performed by first welding two of the two independent divided plates to turn the eight divided plates into four transition plates; then welding two of the independent transition plates to turn the four transition plates into two semi-finished plates; finally, welding the two semi-finished plates to obtain the bell mouth.

[0021] By adopting the above technical solution, during the welding process, the auxiliary cylinder needs to be rotated so that the auxiliary cylinders at different positions face the staff, and the interference of the plates on the auxiliary cylinders is greatly reduced by gradually merging the divided plates for welding.

[0022] To sum up, the present application has the following beneficial technical effects: when welding, the formed sheet is placed on the side wall of the auxiliary cylinder, the switch is controlled to allow the electromagnet to work, and after the sheet is placed on the auxiliary cylinder, the sheet is adsorbed, thereby fixing the sheet on the auxiliary cylinder, thereby achieving the effect of facilitating welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure in which the plate is placed on the auxiliary cylinder in this embodiment;

[0025] Figure 2 Schematic diagram of the position structure of the electromagnet in this embodiment;

[0026] Figure 3 This is a schematic diagram of the structure of the gap in this embodiment;

[0027] Figure 4 This is a schematic diagram of the plate welding sequence in this embodiment;

[0028] Figure 5 Flow chart of the welding process in this embodiment.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Auxiliary tube; 2. Support rod; 3. Placement seat; 4. Electromagnet; 5. Switch; 6. Power supply; 7. Installation port; 8. Fixing area; 9. Make way seam; 10. Reinforcement plate; 11. Marking line; 12. Bell mouth; 13. Block plate; 14. Transition plate; 15. Semi-finished plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] Reference Figure 1-Figure 3A bow thruster bellmouth assembly device comprises an auxiliary cylinder 1, which is made of titanium alloy material. A support rod 2 is fixedly arranged in the auxiliary cylinder 1, and a plurality of support rods 2 are arranged. A placement seat 3 is fixedly arranged on the support rod 2; an adsorption component is arranged on the auxiliary cylinder 1, and the adsorption component comprises an electromagnet 4, a switch 5, and a power supply 6. The power supply 6 is fixedly arranged on the placement seat 3, and the switch 5 is fixedly arranged on the support catcher, and the electromagnet 4 is electrically connected to the switch 5, and the switch 5 is electrically connected to the power supply 6;

[0034] Reference Figure 1-Figure 3 The auxiliary cylinder 1 is provided with a mounting opening 7, and the electromagnet 4 is fixedly arranged in the mounting opening 7. The auxiliary cylinder 1 is evenly divided into eight fixing areas 8, and each fixing area 8 is provided with three mounting openings 7. The electromagnets 4 in the three mounting openings 7 are in the same group and share a switch 5. A clearance gap 9 is left between two adjacent fixing areas 8, and a reinforcing plate 10 is fixedly connected between two adjacent fixing areas 8. The reinforcing plate 10 is located in the clearance gap 9, and the reinforcing plate 10 is used to strengthen the connection strength between the two fixing areas 8 and reduce the shaking of the fixing areas 8.

[0035] Reference Figure 1-Figure 3 , before the plate is placed on the auxiliary cylinder 1, the switch 5 corresponding to the fixing area 8 is turned on to allow the electromagnet 4 to work, and then the plate is placed on the corresponding area to fix the plate on the auxiliary cylinder 1, and then the remaining plates are placed on the fixing areas 8 respectively, and then the two adjacent plates are welded until all the plates are welded; after the welding is completed, the bell mouth 12 surrounded by multiple plates is sleeved outside the auxiliary cylinder 1, and then the plate is taken out from the bell mouth 12. There is no need for multiple people to cooperate in welding. The process is quick and simple to stably weld the plates, thereby achieving the effect of conveniently welding the bell mouth 12 plates.

[0036] Reference Figure 1-Figure 3 A clearance seam 9 is provided to facilitate the discharge of excess welding slag during welding and reduce the accumulation of excess welding slag on the auxiliary tube 1. At the same time, a clearance seam 9 is provided, and the staff can also weld the plate on the inner side, which further facilitates the staff's operation and enhances the strength of the bell mouth 12; the auxiliary tube 1 made of titanium alloy material can reduce the damage to the auxiliary tube 1 caused by the high temperature during welding and increase the service life of the auxiliary tube 1.

[0037] Reference Figure 1-Figure 3 A marking line 11 is provided on the fixing area 8 to mark the boundary of the fixing area 8. When placing the plate, align the plate with the marking line 11, so as to facilitate the alignment of the first plate; after the first plate is fixed on the auxiliary cylinder 1, after the next plate is placed on the auxiliary cylinder 1, push the plate toward the fixed plate so that the side walls of the two plates contact each other, and then turn on the switch 5 of the fixing area 8 to fix the plate placed later.

[0038] Reference Figure 1-Figure 3 A bow thruster bell mouth preparation process comprises the following steps: step 1, calculating the plate size of the bell mouth 12; step 2, cutting the plate according to the calculated data; step 3, extruding the cut plate to form a formed block plate; step 4, attaching the formed plate to the auxiliary tube 1; step 5, welding the block plates; step 6, after welding, removing the auxiliary tube 1 from the bell mouth 12.

[0039] Reference Figure 1-Figure 5 In step 1, calculating the size of the plate also includes dividing the bell mouth 12 into eight equal parts for calculation, and each plate is a block plate 13; in step 5, the block plates 13 are welded specifically by first welding two of the two independent block plates 13, and the eight block plates are converted into four transition plates 14; then two of the independent transition plates 14 are welded, and the four transition plates 14 are converted into two semi-finished plates 15; finally, the two semi-finished plates 15 are welded to obtain the bell mouth 12; during the welding process, the auxiliary cylinder 1 needs to be rotated so that the auxiliary cylinders 1 at different positions face the staff, and the block plates 13 are gradually merged and welded, which greatly reduces the interference of the plate on the auxiliary cylinder 1, and at the same time reduces the number of times the plate is pressed due to the adjustment position of the auxiliary cylinder 1 during the welding process.

[0040] The implementation principle of this embodiment is as follows: when welding, a divided plate is first placed on the corresponding fixing area 8, the first plate is fixed on the auxiliary tube 1, and then another plate is placed in the adjacent fixing area 8, so that the side walls of the two plates are in contact with each other; after the welding is completed, the bell mouth 12 surrounded by multiple plates is sleeved outside the auxiliary tube 1, and then the plate is taken out of the bell mouth 12, without the need for multiple people to cooperate in welding, the process is fast and simple, and the plates can be stably welded, achieving the effect of conveniently welding the bell mouth 12 plates;

[0041] By gradually merging and welding the divided plates, the interference of the plates on the auxiliary cylinder 1 is greatly reduced, and the number of times the plates are pressed by the adjustment position of the auxiliary cylinder 1 during the welding process is also reduced.

[0042] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bow thruster bell mouth assembly device, characterized in that: The auxiliary cylinder (1) comprises an auxiliary cylinder (1), wherein an adsorption component is arranged on the auxiliary cylinder (1), wherein the adsorption component comprises an electromagnet (4), a switch (5), and a power supply (6), wherein the electromagnet (4) is electrically connected to the switch (5), and the switch (5) is electrically connected to the power supply (6), wherein a mounting opening (7) is provided on the auxiliary cylinder (1), wherein the electromagnet (4) is fixedly arranged in the mounting opening (7), and when a plate is placed on the auxiliary cylinder (1), the electromagnet (4) works to adsorb the plate, and a plurality of mounting openings (7) are circumferentially arranged on the auxiliary cylinder (1).

2. A bow thruster bellmouth assembly device according to claim 1, characterized in that: The auxiliary cylinder (1) is provided with a marking line (11).

3. A bow thruster bellmouth assembly device according to claim 2, characterized in that: The auxiliary cylinder (1) is made of titanium alloy material.

4. The bow thruster bellmouth assembly device according to claim 1, characterized in that: A support rod (2) is fixedly arranged in the auxiliary cylinder (1), a placement seat (3) is fixedly arranged on the support rod (2), and the switch (5) and the power supply (6) are respectively fixedly arranged on the placement seat (3).

5. The bow thruster bellmouth assembly device according to claim 1, characterized in that: The auxiliary cylinder (1) is provided with a clearance gap (9).

6. A bow thruster bellmouth assembly device according to claim 5, characterized in that: A reinforcing plate (10) is fixedly arranged on the clearance gap (9).

7. The bow thruster bell mouth preparation process according to claim 1, characterized in that: The following steps are involved: Step 1, calculating the size of the plate of the bell mouth (12); Step 2, cutting the plate according to the calculated data; Step 3, extruding the cut plate to form a formed block plate (13); Step 4, attaching the formed plate to the auxiliary tube (1); Step 5, welding the block plate (13); Step 6, after welding, removing the auxiliary tube (1) from the bell mouth (12).

8. A bow thruster bell mouth preparation process according to claim 7, characterized in that: In step 1, calculating the size of the plate also includes dividing the bell mouth (12) into eight equal parts for calculation. In step 5, the block plates (13) are welded by first welding two of the two independent block plates (13) to convert the eight block plates (13) into four transition plates (14); then welding two of the independent transition plates (14) to convert the four transition plates (14) into two semi-finished plates (15); and finally welding the two semi-finished plates (15) to obtain the bell mouth (12).

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