Methanol dual-fuel ultra-large container ship workpiece angle installation method

Abstract

The invention discloses a methanol dual-fuel ultra-large container ship workpiece angle installation method, and belongs to the technical field of workpiece installation. According to the method, projection information of a keel on a rib plate is calculated, and a keel cut-off line is made; determining the starting point of a cut-off line according to the value from the assembly line of the keel to the mainboard edge; calculating the direction of a cut-off line according to the installation angle, and determining a keel cut-off line in the length direction according to the height of the keel; and determining a keel cut-off line in the width direction according to the width of the keel. When the keel is installed, the installation angle and the keel cut-off line on the rib plate are combined, and accurate positioning of follow-up components is guaranteed. Aiming at the situation that a shipyard workpiece installation cut-off end abuts against a rib plate or a steel wall, the method can confirm whether assembly is in place or not during assembly, and direct welding can be performed after confirmation, so that the ship workpiece assembly precision is improved, the satisfaction degree of a ship owner is improved, and the construction reworking time is shortened.

Description

Technical Field

[0001] The patent of this invention relates to a method for angle installation of workpieces for a methanol dual-fuel ultra-large container ship, which belongs to the technical field of workpiece installation. Background Art

[0002] The keel is one of the most important longitudinal components of a ship. It extends from the bow to the stern along the centerline of the ship's bottom, like the "backbone" of the ship. Its main function is to withstand the longitudinal bending moment of the ship and ensure the longitudinal strength and stability of the ship under various loads (such as the weight of the ship itself, the weight of the cargo, the impact of waves, etc.).

[0003] In ship structures, the cut-off ends of many workpieces such as angle steel and T-shaped materials are installed against the ribs. During assembly, after the workpieces are assembled and welded according to the angle, the ends may be offset from the theoretical position. This is often found when the back of the rib has been assembled, resulting in misalignment of the two-sided structures and shear force. In this case, it is necessary to melt-cut the weld bead at the end of the workpiece, adjust the position and re-weld. This situation is often not a problem with the workpiece, but with multiple workpieces. Melting causes a waste of construction time; it also damages the paint. When the paint is damaged, environmental factors such as seawater and humid air will directly contact the hull steel, causing corrosion; if key structural parts such as the keel are corroded, it may seriously affect the safety of the ship. Summary of the invention

[0004] In order to solve the problems existing in the prior art, a methanol dual-fuel ultra-large container ship workpiece angle installation method is proposed. For the situation where the cut-off end of the workpiece is installed on the rib or steel wall in the shipyard, this method can confirm whether the assembly is in place during assembly, and direct welding can be performed after confirmation.

[0005] The technical means adopted by the present invention are as follows: A method for installing the angle of a workpiece of a methanol dual-fuel ultra-large container ship, comprising the following steps:

[0006] S1. Measure the information of the dragon tendon: the specifications of the dragon tendon are height a and width b;

[0007] S2. Measure the installation information of the ribs: the installation angle between the ribs and the mainboard is c, and the distance between the rib assembly line and the mainboard edge is d;

[0008] S3, calculate the projection information of the dragon tendon on the rib plate, and make the dragon tendon cutoff line: according to the value d of the dragon tendon assembly line from the main board edge, determine the starting point of the cutoff line; calculate the direction of the cutoff line according to the installation angle c, and then determine the dragon tendon cutoff line in the length direction according to the height a of the dragon tendon; and then determine the dragon tendon cutoff line in the width direction according to the width b of the dragon tendon;

[0009] S4. according to the information of the dragon tendon cut-off line obtained, the dragon tendon cut-off line is drawn on the rib plate;

[0010] S5. Refer to the position of the rib cut-off line on the rib plate, and then install the rib according to the angle.

[0011] Furthermore, the dragon tendon cut-off line is the contact line between the dragon tendon and the rib.

[0012] Furthermore, the ribs are angle steel or T-shaped bars.

[0013] If there are other installation angles between the ribs and the ribs, similar geometric calculations are used. Installing the ribs according to the angles and referring to the cutoff line information can improve installation accuracy and ensure accurate alignment with subsequent components A and B.

[0014] Add a marking line on the ribs where the cut-off ends of angle steels, T-profiles, etc. are installed. This marking line is the contact line of the angle steels and T-profiles on the ribs. This marking line is used to determine the positioning during assembly, thereby ensuring assembly accuracy, improving shipowner satisfaction, and reducing working hours.

[0015] Compared with the prior art, the present invention has the following advantages: In this method, the projection information of the dragon bar on the rib plate is calculated, and the dragon bar cut-off line is made: the starting point of the cut-off line is determined according to the value of the dragon bar assembly line from the main board edge; the direction of the cut-off line is calculated according to the installation angle, and then the dragon bar cut-off line in the length direction is determined according to the height of the dragon bar; and then the dragon bar cut-off line in the width direction is determined according to the width of the dragon bar. When installing the dragon bar, the installation angle and the dragon bar cut-off line are combined to ensure the accurate positioning of subsequent components. When the cut-off end of the shipyard workpiece is installed on the rib plate or steel wall, the method of the present invention can confirm whether the assembly is in place during assembly, and can be directly welded after confirmation, thereby improving the assembly accuracy of ship workpieces, improving shipowner satisfaction, and reducing construction rework hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a view of the main board with the rib installed on the main board and the end facing the rib.

[0018] Figure 2 This is a view of the rib plate direction with the rib installed on the main plate and the end in the rib plate.

[0019] Figure 3 It is the installation position information of the dragon tendon.

[0020] Figure 4 This is a schematic diagram of the dragon tendon cutoff line.

[0021] Figure 5 This is a schematic diagram of the installation of the dragon tendon and subsequent components.

[0022] In the figure: 1. main board, 2. ribs, 3. tendons, 4. tendon cut-off line. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0029] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0030] Figure 1 The scenario shown is that the ribs are installed on the main board and the ends are terminated at the ribs. Figure 2 The figure shows the view of the rib on the rib. However, if the rib is installed simply by angle, the rib may not be aligned well with the A and B parts installed later due to measurement errors.

[0031] The present invention provides a method for installing an angle of a workpiece of a methanol dual-fuel ultra-large container ship, comprising the following steps:

[0032] S1. Measure information of the tendon 3: the specifications of the tendon 3 are height a and width b;

[0033] S2. Measure the installation information of the rib 3: the installation angle between the rib 3 and the main board 1 is c, and the distance between the rib 3 assembly line and the main board 1 edge is d; (e.g. Figure 3 shown)

[0034] S3, such as Figure 4 As shown, the projection information of the tendon 3 on the rib plate 2 is calculated, and the tendon cutoff line is made: according to the value d of the distance between the assembly line of the tendon 3 and the edge of the main board 1, the starting point of the cutoff line is determined; according to the installation angle c, the direction of the cutoff line is calculated, and then according to the height a of the tendon 3, the tendon cutoff line 4 in the length direction is determined; and according to the width b of the tendon 3, the tendon cutoff line 4 in the width direction is determined;

[0035] S4, according to the information of the dragon tendon cut-off line obtained, draw the dragon tendon cut-off line 4 on the rib plate;

[0036] S5. Refer to the position of the rib cut-off line 4 on the rib plate, and then complete the installation of the rib 3 according to the angle.

[0037] If there are other installation angles between the ribs and the ribs, similar geometric calculations are performed.

[0038] like Figure 5 As shown, installing the reinforcement according to the angle and referring to the cutoff line information can improve the installation accuracy and ensure accurate alignment with subsequent components A and B.

[0039] Add a marking line on the ribs where the cut-off ends of angle steels, T-profiles, etc. are installed. This marking line is the contact line of the angle steels and T-profiles on the ribs. This marking line is used to determine the positioning during assembly, thereby ensuring assembly accuracy, improving shipowner satisfaction, and reducing working hours.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for installing angles of workpieces for a methanol dual-fuel ultra-large container ship, characterized in that: The following steps are involved: S1. Measure the information of the tendon (3): the specifications of the tendon (3) are height a and width b; S2. Measure the installation information of the rib (3): the installation angle between the rib (3) and the main board (1) is c, and the distance between the assembly line of the rib (3) and the side of the main board (1) is d; S3, calculating the projection information of the tendon (3) on the rib plate (2) and making the tendon cut-off line: according to the distance d between the assembly line of the tendon (3) and the edge of the main board (1), determining the starting point of the cut-off line; calculating the direction of the cut-off line according to the installation angle c, and then determining the tendon cut-off line (4) in the length direction according to the height a of the tendon (3); and then determining the tendon cut-off line (4) in the width direction according to the width b of the tendon (3); S4, according to the information of the rib cut-off line (4) obtained, the rib cut-off line (4) is drawn on the rib plate (2); S5. Refer to the position of the rib cut-off line (4) on the rib plate (2) and install the rib (3) according to the angle.

2. The method for installing a methanol dual-fuel ultra-large container ship workpiece angle according to claim 1, characterized in that: The following steps are involved: The rib cut-off line (4) is the contact line between the rib (3) and the rib plate (2).

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