Tension test device for ship deck mooring hole

Abstract

The invention discloses a tension test device for a ship deck mooring hole. The tension test device comprises a device body and a connecting part, the device body comprises a rope hanging part and a mooring hole connecting part which are fixedly connected with each other, a first hole is formed in the rope hanging part and used for hanging a rope, and a second hole is formed in the mooring hole connecting part and used for being connected with a mooring hole; the connecting part comprises a first connecting section and a second connecting section which are connected with each other, the first connecting section is used for being connected with the mooring hole, and the second connecting section penetrates through the second opening to be connected with the device body. According to the tension test device for the ship deck mooring hole, the rope hanging part and the mooring hole connecting part are arranged on the device body, the rope hanging part is used for hanging a rope for tension test, and the mooring hole connecting part and the mooring hole are connected through the connecting part, so that rapid tensioning between the rope and the mooring hole is achieved; tensile force can be conveniently applied to the mooring hole in all directions, and multi-angle tensile force testing of the mooring hole is achieved.

Description

Technical Field

[0001] The invention relates to the field of tension testing, in particular to a tension testing device for a mooring hole on a ship deck. Background Art

[0002] Large ro-ro ships are special ships used to load vehicles. On the decks of large ro-ro ships, a large number of fixed components (called mooring holes) are installed on each parking deck. When the ro-ro ship is sailing, factors such as waves and wind may cause the cargo on the ship to move. Therefore, when the cargo is loaded onto the deck or the vehicle is parked on the deck, steel chains are needed to tighten and fix the vehicle to the mooring holes in multiple directions.

[0003] Mooring holes generally have high strength and firmness and can withstand large tensile forces. By connecting mooring devices such as ropes and chains to mooring holes, vehicles and other cargo can be firmly fixed on the deck to ensure the safety and stability of the cargo during transportation and prevent the cargo from being displaced, collided or even slipped into the sea due to the shaking of the ship.

[0004] The mooring hole is a flat-bottomed bowl or hemispherical structure with a cross fixing support installed on the upper edge. The mooring hole is welded to the ship deck to serve as a fixing seat. After the vehicle is parked on the deck, the shackle at one end of the chain is hung on the cross support, and the hook at the other end is hung on the vehicle. The chain is tightened with a hoist to fix the vehicle.

[0005] In order to ensure that the mooring holes on the ro-ro ship are installed correctly, a tensile test is required after the mooring holes are installed to verify whether the manufacturing and installation of the mooring holes meet the strength requirements of the design. The existing tensile test method is to directly mount the rope used for the tensile test on the mooring hole. Due to the structure of the mooring hole itself, it takes a long time to mount the rope on the mooring hole. There are a large number of mooring holes on the upper surface of the ro-ro ship, which makes the tensile test too time-consuming overall.

[0006] Therefore, a new tensile test device is needed to shorten the time required for tensile testing. Summary of the invention

[0007] The invention aims to provide a tensile test device for ship deck mooring holes, which has the advantages of convenient installation and short tensile test time.

[0008] To achieve the above object, the present invention provides a tensile test device for a ship deck mooring hole, comprising:

[0009] The device body comprises a rope hanging part and a mooring hole connecting part which are fixedly connected to each other, the rope hanging part is provided with a first opening for hanging the rope, and the mooring hole connecting part is provided with a second opening for connecting with the mooring hole;

[0010] The connecting component comprises a first connecting section and a second connecting section connected to each other, wherein the first connecting section is used to connect to the mooring hole, and the second connecting section passes through the second opening and is connected to the device body.

[0011] Optionally, a plurality of second openings are formed on the mooring hole connection portion, and the tensile testing device includes a plurality of connecting components, and the connecting components respectively pass through the plurality of second openings and are connected to the mooring hole connection portion.

[0012] Optionally, the second connecting section is provided with a threaded connecting section, and the threaded connecting section passes through the second opening. The tensile testing device also includes a nut, and the connecting component and the device body are fixedly connected by the cooperation of the nut and the second connecting section.

[0013] Optionally, the outer diameter of the threaded connection section is greater than 20 mm.

[0014] Optionally, the outer diameter of the threaded connection section is 30 mm.

[0015] Optionally, four second openings are provided on the mooring hole connecting portion, and the tensile testing device includes two connecting components, which are diagonally connected to the mooring hole connecting portion.

[0016] Optionally, a first lifting ear reinforcement plate is provided on the rope hanging portion, the first lifting ear reinforcement plate is fixedly connected to the rope hanging portion, and a third opening is opened in the middle of the first lifting ear reinforcement plate, and the third opening is aligned with the first opening.

[0017] Optionally, a second lifting ear reinforcement plate is further provided in the rope hanging part, the second lifting ear reinforcement plate is fixedly connected to the rope hanging part, and a fourth opening is opened in the middle of the second lifting ear reinforcement plate, the fourth opening is aligned with the first opening, and the second lifting ear reinforcement plate and the first lifting ear reinforcement plate are arranged on both sides of the rope hanging part.

[0018] Optionally, the rope hanging portion and the mooring hole connecting portion are connected by full penetration welding.

[0019] Optionally, the connecting component is formed by bending a whole round steel to form the first connecting section and the second connecting section.

[0020] In summary, compared with the prior art, the tensile test device for ship deck mooring holes provided by the present invention has the following beneficial effects:

[0021] The tensile test device for ship deck mooring holes of the present invention comprises a rope hanging portion and a mooring hole connecting portion provided on the device body, wherein the rope hanging portion is used to hang a rope for tensile test, and the mooring hole connecting portion and the mooring hole are connected by a connecting component, thereby realizing rapid tightening between the rope and the mooring hole, facilitating applying tensile force to the mooring hole from all directions, and realizing multi-angle tensile test on the mooring hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the tensile testing device of the present invention.

[0023] Figure 2 It is a schematic diagram of the main body of the device.

[0024] Figure 3 It is a top view schematic diagram of the device body.

[0025] Figure 4 It is a side view schematic diagram of the device body.

[0026] Figure 5 A schematic diagram of the structure of the connecting parts.

[0027] Description of reference numerals:

[0028] Tensile test device 10

[0029] Device body 100

[0030] Rope hanging part 110

[0031] The first opening 111

[0032] Mooring hole connection part 120

[0033] The second opening 121

[0034] First lifting ear reinforcement plate 130

[0035] Second lifting ear reinforcement plate 140

[0036] Connecting component 200

[0037] First connecting section 210

[0038] The second connecting section 220

[0039] Rope 300 DETAILED DESCRIPTION

[0040] The following will be combined with the attached embodiment of the present invention Figure 1 ~Attached Figure 5 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0041] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0042] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] like Figure 1 As shown, the present invention provides a tensile test device 10 for a mooring hole on a ship deck. The tensile test device 10 includes a device body 100 and a connecting component 200. The device body 100 is used to connect the mooring hole on the deck of a roll-on / roll-off ship with a rope 300 for tensile testing, so that the tensile test can be performed without directly hanging the rope 300 in the mooring hole. In particular, when the rope 300 is not convenient to install in the mooring hole, the tensile test device 10 of the present invention can realize the connection between the rope 300 for tensile testing and the mooring hole for tensile testing. The connecting component 200 is used to fix the device body 100 and the mooring hole.

[0044] like Figure 2 As shown, the device body 100 includes a rope hanging part 110 and a mooring hole connecting part 120 that are fixedly connected to each other. The rope hanging part 110 is provided with a first opening 111, and the first opening 111 is used to hang a rope 300 used for performing a tensile test on the mooring hole. In this embodiment, the rope hanging part 110 is a plate-type hanging ear. In addition, in this embodiment, as shown in FIG. Figure 4As shown, in order to enhance the strength of the rope hanging part 110 and avoid damage due to insufficient strength of the plate-type hanging ear during the tension test, a first hanging ear reinforcement plate 130 is provided on the rope hanging part 110, the first hanging ear reinforcement plate 130 is fixedly connected to the rope hanging part 110, and a third opening is provided in the middle of the first hanging ear reinforcement plate 130, and the third opening is aligned with the first opening 111. In addition, a second hanging ear reinforcement plate 140 is also provided on the rope hanging part 110, the second hanging ear reinforcement plate 140 is fixedly connected to the rope hanging part 110, and a fourth opening is provided in the middle of the second hanging ear reinforcement plate 140, and the fourth opening is aligned with the first opening 111, and the second hanging ear reinforcement plate 140 and the first hanging ear reinforcement plate 130 are arranged on both sides of the rope hanging part 110. By respectively arranging the first hanging ear reinforcement plate 130 and the second hanging ear reinforcement plate 140 on both sides of the rope hanging part 110, and respectively opening the third opening and the fourth opening aligned with the first opening 111 on the first hanging ear reinforcement plate 130 and the second hanging ear reinforcement plate 140, the first hanging ear reinforcement plate 130 and the second hanging ear reinforcement plate 140 can enhance the structural strength of the rope hanging part 110 without affecting the rope 300 used for the tensile test passing through the first opening 111 on the rope hanging part 110, thereby successfully realizing the tensile test.

[0045] like Figure 3 As shown, the mooring hole connection part 120 is provided with a second opening 121 for connecting with the mooring hole. Specifically, the mooring hole connection part 120 is connected with the mooring hole through a connecting component 200. The specific structure of the connecting component 200 is as follows: Figure 5 As shown, the connecting component 200 includes a first connecting section 210 and a second connecting section 220 connected to each other, the first connecting section 210 is used to connect to the mooring hole, and the second connecting section 220 passes through the second opening 121 to connect to the device body 100. A threaded connecting section is provided on the second connecting section 220, and the threaded connecting section passes through the second opening 121. The tensile test device 10 also includes a nut, and the device body 100 and the connecting component 200 are fixedly connected by the nut and the second connecting section 220. Specifically, the first connecting section 210 of the connecting component 200 is in the shape of a hook, which is used to hook the cross support of the mooring hole; the second connecting section 220 passes upward through the second opening 121 of the mooring hole connecting portion 120, and then a nut is used to tighten the second connecting section 220 to the mooring hole connecting portion 120, thereby achieving a reliable connection between the connecting component 200 and the mooring hole connecting portion 120, and after the tensile test is completed, the nut can be removed to separate the mooring hole connecting portion 120 and the connecting component 200 for subsequent tensile tests of other mooring holes.

[0046] In this embodiment, the connecting component 200 is formed by bending a whole round steel to form the first connecting section 210 and the second connecting section 220, and the outer portion of the round steel bent into the second connecting section 220 is processed with external threads.

[0047] To ensure that the connection component 200 can achieve reliable connection between the mooring hole connection portion 120 and the mooring hole, the outer diameter of the threaded connection section is greater than 20 mm. In this embodiment, the outer diameter of the threaded connection section is 30 mm. In other embodiments, the outer diameter of the threaded connection section can also be selected as other sizes such as 25 mm or 40 mm.

[0048] The tensile test device 10 of the present invention is designed for tensile tests of mooring holes in multiple directions and multiple angles, and the design value of the test tensile force is 12-20 tons. In order to further enhance the connection strength between the mooring hole connection part 120 and the mooring hole, and ensure the stable connection between the mooring hole connection part 120 and the mooring hole during the tensile test. The mooring hole connection part 120 is provided with a plurality of second openings 121, and the tensile test device 10 includes a plurality of connecting parts 200, and the connecting parts 200 are respectively connected to the mooring hole connection part 120 through the plurality of second openings 121. A reliable connection between the mooring hole connection part 120 and the mooring hole is achieved through the plurality of connecting parts 200 and the plurality of second openings 121, thereby improving the connection strength and ensuring a stable and reliable connection during the tensile test.

[0049] Specifically, in this embodiment, if Figure 3 As shown, four second openings 121 are formed on the mooring hole connection portion 120 , and the tensile testing device 10 includes two connection components 200 , and the two connection components 200 are diagonally connected to the mooring hole connection portion 120 .

[0050] In this embodiment, the rope suspension part 110 and the mooring hole connection part 120 are connected by full penetration welding. Full penetration welding means that during the welding process, the root of the weld completely penetrates the butt joint of the weldment, and there is no unfused part between the weld metal and the parent material. That is, during welding, the weldment is melted from the surface to the back, so that the weld can achieve a good fusion state in the entire thickness direction. The rope suspension part 110 and the mooring hole connection part 120 are welded by full penetration welding. Since the weld completely penetrates the parent material, the weld metal and the parent material can form a whole. When subjected to external force, the stress can be effectively transferred from the parent material to the weld metal, and the weld can share the load with the parent material, thereby improving the welding strength between the rope suspension part 110 and the mooring hole connection part 120, so that the tensile test device 10 can be suitable for high-strength tensile tests.

[0051] And full penetration welding can effectively reduce welding defects. During full penetration welding, the root of the weld is also completely fused, so defects such as lack of fusion and lack of penetration can be avoided. Full penetration welding improves the density and integrity of the weld by ensuring complete penetration, thereby ensuring welding quality.

[0052] The rope suspension part 110 and the mooring hole connection part 120 connected by full penetration welding can be applied to structures subjected to dynamic loads or harsh working environments, and are applied to tensile loads, thereby extending the service life of the tensile test device 10 of the present invention. At the same time, since the test scenes of ro-ro ships are mostly at the seaside, the air is in a high-salt and high-humidity environment, the high-quality welds of full penetration welding can better resist the erosion of environmental factors and extend the service life of the structure.

[0053] The process of conducting a tensile test using the tensile test device 10 of the present invention includes: during the tensile test, the J-shaped connecting component 200 is first hooked to the cross support of the mooring hole on the ro-ro ship, and then passed through the second opening 121 of the mooring hole connecting part 120 and fixed with a nut. During the test, one end of the rope 300 is pulled into the first opening 111 of the rope hanging part 110 with a shackle, and the other end is fixed to the tensile device, so that tensile tests at different angles can be performed according to design requirements.

[0054] The tensile test device 10 of the present invention is suitable for tensile tests of various mooring holes. First, some mooring holes are small in size, and the shackle of the test wire rope cannot be installed in the cross support of the mooring hole. The tensile test device 10 of the present invention can provide a force point; second, some mooring holes are located in a narrow space, and the test position is small. The tensile test device 10 of the present invention can convert the force point; third, some mooring holes and surrounding decks require protection to prevent the shackle of the test wire rope from directly colliding with the deck and causing damage. The tensile test device 10 of the present invention can play an isolation and conversion role.

[0055] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A tensile test device for ship deck mooring holes, characterized in that: The tensile testing device comprises: The device body comprises a rope hanging part and a mooring hole connecting part which are fixedly connected to each other, the rope hanging part is provided with a first opening for hanging the rope, and the mooring hole connecting part is provided with a second opening for connecting with the mooring hole; The connecting component comprises a first connecting section and a second connecting section connected to each other, wherein the first connecting section is used to connect to the mooring hole, and the second connecting section passes through the second opening and is connected to the device body.

2. The tensile testing device according to claim 1, characterized in that: The mooring hole connection portion is provided with a plurality of the second openings, and the tensile testing device comprises a plurality of connecting components, and the connecting components respectively pass through the plurality of the second openings and are connected to the mooring hole connection portion.

3. The tensile testing device according to claim 2, characterized in that: The second connecting section is provided with a threaded connecting section, and the threaded connecting section passes through the second opening. The tensile testing device also includes a nut, and the connecting component and the device body are fixedly connected by the cooperation of the nut and the second connecting section.

4. The tensile testing device according to claim 3, characterized in that: The outer diameter of the threaded connection section is greater than 20 mm.

5. The tensile testing device according to claim 4, characterized in that: The outer diameter of the threaded connection section is 30 mm.

6. The tensile testing device according to claim 2, characterized in that: The mooring hole connection part is provided with four second openings, and the tensile test device comprises two connecting parts, and the two connecting parts are diagonally connected to the mooring hole connection part.

7. The tensile testing device according to claim 1, characterized in that: The rope hanging portion is provided with a first lifting ear reinforcement plate, the first lifting ear reinforcement plate is fixedly connected to the rope hanging portion, and a third opening is opened in the middle of the first lifting ear reinforcement plate, and the third opening is aligned with the first opening.

8. The tensile testing device according to claim 7, characterized in that: The rope hanging part is also provided with a second lifting ear reinforcement plate, the second lifting ear reinforcement plate is fixedly connected to the rope hanging part, and A fourth opening is formed in the middle of the second lifting ear reinforcement plate, and the fourth opening is aligned with the first opening. The second lifting ear reinforcement plate and the first lifting ear reinforcement plate are arranged on both sides of the rope hanging part.

9. The tensile testing device according to claim 1, characterized in that: The rope hanging portion and the mooring hole connecting portion are connected by full penetration welding.

10. The tensile testing device according to claim 1, characterized in that: The connecting component is formed by bending a whole round steel bar to form the first connecting section and the second connecting section.

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