High-precision marine positioning facility with limiting function

Abstract

The invention relates to a high-precision marine positioning facility with a limiting function, and belongs to the field of design and installation of ship structures and devices. The positioning cone comprises an arc-shaped cone structure for preliminary positioning and limiting and a cylinder for high-precision positioning, the arc-shaped cone structure is located at the top of the cylinder, and a plate-shaped mounting structure is arranged at the bottom of the cylinder; the positioning cylinder box comprises a box body, and a sleeve capable of being matched with the positioning cone is arranged in the box body. According to the positioning and limiting device, the safety risk problems that the number of screw holes is large, the positioning precision is high and bolt connection is loosened during modular installation of a large steel structure or a ship device are solved, and the rapid and high-precision positioning and limiting requirements needed by ship-on-ship assembly of the ship modular structure or device are met.

Description

Technical Field

[0001] This application belongs to the field of ship structure and device design and installation, and specifically relates to a high-precision positioning facility with a limiting function, which is used for the rapid high-precision positioning, installation and limiting of various marine modular steel structures and devices. Background Art

[0002] Facing the diversified functions of ships and future upgrade requirements, there are more and more detachable structures and devices that can be applied to ships. The modular structures and devices that can be flexibly disassembled and applied require rigid installation on the hull and transfer their working loads to the hull structure, and at the same time, the original ship design functions cannot be damaged. Therefore, the traditional welding connection method cannot be used, and only the bolt connection method can be used for installation and fixation. With the continuous expansion of application scenarios, the sizes of modular structures and equipment are becoming increasingly large, resulting in hundreds of installation bolt holes for a single structural module or equipment. In order to quickly align such a large number of bolt holes during assembly, a high-precision positioning method is required.

[0003] The large modular steel structures and devices installed on ships will inevitably be subjected to horizontal inertial forces caused by ship sway. If only bolt connections are relied on to withstand this horizontal force, serious consequences will occur once the bolts become loose under complex ship vibration and sway conditions. An additional mechanical limiting method is needed to overcome the inertial forces generated by ship sway, thereby ensuring the safety of large modular steel structures and devices during long-term use.

[0004] Due to the large number of installation bolt holes for large modular steel structures or ship devices, and the unilateral gap between the bolt holes and bolts is only 3 - 5 mm, it is required to quickly adjust the installation gaps of hundreds of bolt holes to the required range during installation, and the positioning accuracy requirement is relatively high. To solve this technical problem, a guiding positioning facility is proposed. As long as this facility is installed and adjusted in place on the modular steel structure or ship device in a given manner, it can ensure that all bolt holes are smoothly aligned during the installation of the modular steel structure or ship device.

[0005] To solve the safety risk problem that the bolt connection method may become loose under ship vibration and sway conditions, it is necessary to further optimize the design of the proposed positioning facility so that it also has a mechanical limiting function, enabling large modular steel structures or ship devices to have the ability to overcome sway inertial forces without occupying more weight and space. Summary of the Invention

[0006] The object of the present invention is: a high-precision marine positioning facility with a limiting function, enabling large modular steel structures or ship devices to have the ability to overcome sway inertial forces without occupying more weight and space.

[0007] To achieve the above object, the technical solution of the present invention provides a high-precision marine positioning facility with a limiting function, including a positioning cone and a positioning cylinder box that cooperate with each other; the positioning cone includes an arc-shaped cone structure for preliminary positioning and limiting and a cylinder for high-precision positioning. The arc-shaped cone structure is located at the top of the cylinder, and a plate-shaped mounting structure is provided at the bottom of the cylinder; the positioning cylinder box includes a box body, and a sleeve that can cooperate with the positioning cone is provided inside the box body.

[0008] Preferably, groove-shaped bolt holes and movable adjustment pads are provided on the four side surfaces of the box body. The positioning cylinder box adjusts the relative position and fitting clearance between the sleeve and the positioning cone through the groove-shaped bolt holes and the movable adjustment pads, so as to achieve high-precision positioning and limiting functions.

[0009] Preferably, the positioning cone is installed on the ship deck or the base, and the positioning cylinder box is installed on the modular steel structure or the ship device.

[0010] Preferably, the positioning cylinder box fixes the box-shaped structure to the modular steel structure or the ship device through bolts.

[0011] Preferably, the plate-shaped mounting structure of the positioning cone is fixed to the mounting surface by welding or bolt connection.

[0012] Preferably, the cross-sectional shape and size of the upper part of the sleeve are the same as those of the arc-shaped cone structure of the positioning cone, and there is a 1-mm gap between the lower part and the cylinder, which is convenient for assembly and positioning.

[0013] Preferably, the sleeve and the box body are connected by a partition plate.

[0014] Preferably, only two sets of positioning facilities are required to cooperate for positioning during installation. When using the limiting function, the number of limiting facilities is determined according to the magnitude of the inertial force borne by the structure or device.

[0015] Preferably, the preliminary positioning is achieved by the rapid matching of the cylindrical part at the lower end of the positioning cylinder and the conical body at the upper end of the positioning cone, and the high-precision positioning is achieved by the matching of the cylindrical part of the positioning cylinder and the cylinder at the lower part of the positioning cone.

[0016] Preferably, the limiting function adjusts the installation height of the positioning cylinder box on the modular steel structure or the ship device through the groove-shaped bolt holes on the four sides of the box body of the positioning cylinder. When the positioning cylinder box is lowered to a height where it is in close contact with the conical surface of the arc-shaped cone structure, the connecting bolts on the box body are tightened, thereby generating a limiting effect.

[0017] In summary, the present invention includes the following beneficial technical effects:

[0018] The present invention solves the technical problems of a large number of screw holes and high positioning accuracy in the modular installation of large steel structures or the installation of large ship devices, as well as the safety risk problem that the bolt connection method may become loose under the conditions of ship vibration and sway, and restricts the displacement of the modular structure or device during the ship's sway. It meets the requirements of rapid and high-precision positioning with limit function for the on-board assembly of marine modular structures or devices. It provides a rapid and convenient assembly and positioning solution for the modularization, diversification of ship functions and future system upgrades. At the same time, the positioning facility proposed in this patent can withstand a horizontal shear force of 50 tons through experimental verification, and can meet the requirements of modular on-board installation of large steel structures and large equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a positioning cone in a high-precision marine positioning facility with a limit function according to the present invention;

[0020] Figure 2 It is a side view of a positioning cone in a high-precision marine positioning facility with a limit function according to the present invention;

[0021] Figure 3 It is a top view of a positioning cone in a high-precision marine positioning facility with a limit function according to the present invention;

[0022] Figure 4 It is a sectional view of a positioning cone in a high-precision marine positioning facility with a limit function according to the present invention;

[0023] Figure 5 It is a schematic structural diagram of a positioning cylinder box in a high-precision marine positioning facility with a limit function according to the present invention;

[0024] Figure 6 It is a top view of a positioning cylinder box in a high-precision marine positioning facility with a limit function according to the present invention;

[0025] Figure 7 It is a sectional view along A-A of a positioning cylinder box in a high-precision marine positioning facility with a limit function according to the present invention;

[0026] Figure 8 It is a sectional view along B-B of a positioning cylinder box in a high-precision marine positioning facility with a limit function according to the present invention;

[0027] Figure 9 It is a schematic diagram of preliminary positioning in a high-precision marine positioning facility with a limit function according to the present invention;

[0028] Figure 10 It is a schematic diagram of high-precision positioning in a high-precision marine positioning facility with a limit function according to the present invention;

[0029] Figure 11Schematic diagram of the limiting function in a high-precision marine positioning facility with a limiting function according to the present invention.

[0030] Reference numerals: 1, positioning cone; 11, cylinder; 12, arc-shaped cone structure; 13, plate-shaped mounting structure; 2, positioning cylinder box; 21, box body; 211, grooved bolt hole; 22, sleeve; 23, partition. Specific implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The embodiment of the present invention discloses a high-precision positioning facility with a limiting function, which is mainly used to solve the problems of high-precision positioning and limiting during the installation of large marine steel structures or modular devices on ships. The following describes the present invention in detail with reference to the accompanying drawings.

[0033] The positioning facility of the present invention consists of 1 positioning cone 1 and 1 set of positioning cylinder boxes 2. As Figure 1 shown, the positioning cone 1 is a fixed reference part that plays a positioning and limiting role. The cross-sectional shape of the positioning cone 1 is an inverted "T" shape. Its horizontal part is used to be fixed to the installation surface, which can be achieved by welding or bolt connection. The upper end of the vertical part is a cone for preliminary positioning and limiting; the lower end is a cylinder 11 for high-precision positioning. As Figure 5 shown, the main body of the positioning cylinder box 2 is a box-shaped structure with a sleeve 22 in the middle. The sleeve 22 and the box body 21 are welded together by a partition 23. Grooved bolt holes 211 and movable adjustment pads are provided on each of the four sides of the box-shaped structure. High-precision positioning and limiting functions are achieved through the adjustment pads and the grooved bolt holes 211. During installation and positioning, only two sets of positioning facilities are required for cooperation; when using the limiting function, the number of limiting facilities is determined according to the magnitude of the inertial force borne by the structure or device.

[0034] During the installation process, the positioning cone 1 is installed on the ship deck or the base and rigidly fixed to the installation surface with a certain position accuracy, as Figures 1 to 4 shown. Bolt holes can be provided on the horizontal base surface of the positioning cone 1, and the positioning cone 1 is rigidly connected to the ship deck or the base through bolts, or can also be fixed by welding, as Figure 3 shown. The positioning cylinder box 2 is installed on the modular steel structure or the ship device, as Figures 5 to 8 shown. The positioning cylinder box 2 adjusts the relative position and the fitting clearance between the sleeve 22 and the positioning cone 1 through the grooved bolt holes 211 and the movable adjustment pads, so as to achieve high-precision positioning and limiting functions.

[0035] Generally, the positioning function is first used to position and install the modular steel structure or ship device. At this time, only two sets of positioning facilities need to be set at two diagonal positions of the module or equipment to be installed; after the modular steel structure or ship device is installed and fixed, the limiting function of the positioning facilities is used. At this time, a sufficient number of positioning and limiting facilities are set according to the magnitude of the inertial force borne by the structure or device, and an installation space for the positioning cylinder is reserved on the modular steel structure or ship device.

[0036] During the positioning and limiting process, the preliminary positioning is achieved by the rapid matching of the cylindrical part at the lower end of the positioning cylinder and the conical body at the upper end of the positioning cone 1 when the modular steel structure or ship device is hoisted, as Figure 9 shown. Subsequently, the modular steel structure or ship device is gradually lowered so that the cylindrical part of the positioning cylinder matches the cylinder 11 at the lower part of the positioning cone 1 to achieve high-precision positioning, as Figure 10 shown. The limiting function adjusts the installation height of the positioning cylinder on the modular steel structure or ship device through the grooved screw holes on the four sides of the positioning cylinder body 21. When the positioning cylinder is lowered to the height where it is in close contact with the conical surface of the positioning cone 1, the connecting bolts on the positioning cylinder body 21 are tightened to generate a limiting effect, as Figure 11 shown.

[0037] Figures 9 to 11 shows the action process of the positioning facility. Figure 9 represents the preliminary positioning achieved by the rapid matching of the cylindrical part at the lower end of the positioning cylinder and the conical body at the upper end of the positioning cone 1 when the modular steel structure or ship device is hoisted. Figure 10 represents that the modular steel structure or ship device is gradually lowered so that the cylindrical part of the positioning cylinder matches the cylinder 11 at the lower part of the positioning cone 1 to achieve high-precision positioning. At this time, bolt connection can be used for modular assembly work. After the assembly is completed, the installation height of the positioning cylinder on the modular steel structure or ship device is adjusted through the grooved screw holes on the four sides of the positioning cylinder body 21, as Figure 11 shown. The positioning cylinder is lowered to the height where it is in close contact with the conical surface of the positioning cone 1, and finally the limiting function is achieved.

[0038] The entire modular assembly solution aims to be flexibly installed on the ship without affecting other functions of the original ship. A large number of bolt connections are used to replace welding to achieve a rigid connection between the modular structure or device and the ship's installation surface, without affecting other functions of the original ship. The cross-sectional shape of the positioning cone 1 is an inverted "T" shape. The horizontal part is used to fix to the installation surface, and the upper end of the vertical part is an arc-shaped cone structure, while the lower end is a cylinder 11, which are respectively used for preliminary positioning, limiting, and high-precision positioning. Among them, the arc-shaped cone structure 12 can meet the requirements of preliminary positioning and bear the contact force during limiting. The main body of the positioning cylinder box 2 is a box-shaped structure with a sleeve 22 in the middle. The sleeve 22 is connected to the box body 21 through a partition 23. Grooved bolt holes 211 are provided on each of the four sides of the box-shaped structure, and the box-shaped structure is fixed to the modular steel structure or ship device through bolts. An adjusting pad is provided between the connection surface of the positioning cylinder box body 21 and the modular steel structure or ship device. By adjusting the thickness of the adjusting pad, the relative installation position of the positioning cylinder and the positioning cone 1 meets the final positioning accuracy requirements.

[0039] The positioning and limiting functions are completed through the mutual cooperation of the positioning cone 1 and the positioning cylinder. The cross-sectional shape and size of the upper part of the middle cylinder of the positioning cylinder are the same as the taper of the cone body of the positioning cone 1, and there is a 1-mm gap between the lower part and the cylinder 11 at the lower part of the positioning cone 1, which is convenient for assembly and positioning. Although the fitting surfaces of the positioning cone 1 and the positioning cylinder box 2 need to be finely processed, they still cannot be completely fitted, and there will be a certain gap. This gap not only determines the upper limit of the positioning accuracy of the positioning facility, but also enables relative movement between the positioning cone 1 and the positioning cylinder, so that the entire positioning facility can play a limiting role. The installation height of the positioning cylinder on the modular steel structure or ship device is adjusted through the grooved screw holes on the four sides of the positioning cylinder box body 21. When the positioning cylinder is lowered to the height where it is in close contact with the conical surface of the positioning cone 1, the connection bolts on the positioning cylinder box body 21 are tightened, thereby generating a limiting effect.

[0040] The positioning facility of the present invention has the following advantages: 1. High-precision positioning. Through the cooperation of the positioning cone 1 and the positioning cylinder, high-precision positioning is achieved, meeting the requirements for modular installation of large marine steel structures or devices on the ship; 2. Limiting function. Through the close fit of the positioning cylinder and the positioning cone 1, the limiting function is achieved, restricting the displacement of the modular structure or device during the ship's swaying; 3. Safe and reliable. The bolt connection method is adopted, avoiding the safety hazards brought by welding. At the same time, through test verification, it can withstand a horizontal shear force of 50 tons, meeting the requirements for modular installation of large steel structures and large equipment on the ship; 4. Modular installation. A large number of bolt connections are used to achieve a rigid connection between the modular structure or device and the ship's installation surface, without affecting other functions of the original ship, providing a fast and convenient assembly and positioning solution for the modularization, diversification of ship functions, and future system upgrades.

[0041] The positioning facility of the present invention solves the technical problems of a large number of screw holes and high positioning accuracy in the modular installation of large steel structures or the installation of large ship devices, as well as the safety risk problem that the bolt connection method may become loose under the conditions of ship vibration and sway, and meets the rapid high-precision positioning requirements with limit functions required for the on-board assembly of marine modular structures or devices.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision marine positioning facility with a limiting function, characterized in that It includes a positioning cone (1) and a positioning cylinder box (2) that cooperate with each other; the positioning cone (1) includes an arc-shaped cone structure (12) for preliminary positioning and limiting and a cylinder (11) for high-precision positioning. The arc-shaped cone structure (12) is located at the top of the cylinder (11), and a plate-shaped mounting structure (13) is provided at the bottom of the cylinder (11); the positioning cylinder box (2) includes a box body (21), and a sleeve (22) that can cooperate with the positioning cone (1) is provided inside the box body (21).

2. The high-precision marine positioning facility with a limit function according to claim 1, characterized in that, Grooved bolt holes (211) and movable adjustment pads are provided on the four side surfaces of the box body (21). The positioning cylinder box (2) adjusts the relative position and mating clearance between the sleeve (22) and the positioning cone (1) through the grooved bolt holes (211) and the movable adjustment pads, so as to achieve high-precision positioning and limiting functions.

3. The high-precision marine positioning facility with a limiting function according to claim 2, characterized in that, The positioning cone (1) is installed on the ship deck or the base, and the positioning cylinder box (2) is installed on the modular steel structure or the ship device.

4. A high-precision marine positioning facility with a limit function according to claim 3, characterized in that, The positioning cylinder box (2) fixes the box-shaped structure to the modular steel structure or the ship device through bolts.

5. A high-precision marine positioning facility with a limiting function according to claim 4, characterized in that, The plate-shaped mounting structure (13) of the positioning cone (1) is fixed to the mounting surface by welding or bolt connection.

6. A high-precision marine positioning facility with a limiting function according to claim 5, characterized in that, The upper cross-sectional shape and size of the sleeve (22) are the same as those of the arc-shaped cone structure (12) of the positioning cone (1), and there is a 1-mm gap between the lower part and the cylinder (11), which is convenient for assembly and positioning.

7. A high-precision marine positioning facility with a limit function according to claim 6, characterized in that, The sleeve (22) is connected to the box body (21) through a partition (23).

8. A high-precision marine positioning facility with a limiting function according to claim 7, characterized in that, Only two sets of positioning facilities are required to cooperate for positioning during installation. When using the limiting function, the number of sets of limiting facilities is determined according to the magnitude of the inertial force borne by the structure or device.

9. A high-precision marine positioning facility with a limit function according to claim 8, characterized in that, The preliminary positioning is achieved by the rapid matching of the cylindrical part at the lower end of the positioning cylinder and the conical body at the upper end of the positioning cone (1), and the high-precision positioning is achieved by the matching of the cylindrical part of the positioning cylinder and the cylinder (11) at the lower part of the positioning cone (1).

10. A high-precision marine positioning facility with a limit function according to claim 9, characterized in that, The limiting function adjusts the installation height of the positioning cylinder box (2) on the modular steel structure or the ship device through the grooved bolt holes (211) on the four sides of the box body (21) of the positioning cylinder. When the positioning cylinder box (2) is lowered to the height where it is in close contact with the conical surface of the arc-shaped cone structure (12), the connecting bolts on the box body (21) are tightened, thereby generating a limiting effect.

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