An anchor pulling test device with adjustable lower anchor lip positioning and a test method thereof

Abstract

An anchor pulling test device with an adjustable lower anchor lip positioning and a test method, which relate to the field of ship anchors. The anchor pulling test device with an adjustable lower anchor lip positioning includes an upper anchor chain barrel, a lower anchor chain barrel connected to the hull, and a lower anchor lip connected to the end of the lower anchor chain barrel away from the upper anchor chain barrel. The lower anchor chain barrel is rotatably and axially telescopically connected to the upper anchor chain barrel. The anchor pulling test device with an adjustable lower anchor lip positioning and the test method provided by this application can quickly adjust the position of the lower anchor lip and the shape of the surface of the part in contact with the anchor by rotating and telescoping the lower anchor lip relative to the upper anchor chain barrel, so as to quickly verify the influence of different schemes on the anchor pulling effect multiple times.

Description

Technical Field

[0001] The present application relates to the field of ship anchors, and more particularly, to a pulling anchor test device with an adjustable lower anchor lip position and a test method therefor. Background Art

[0002] The anchor device is an important equipment to ensure the safe anchoring of a ship. The design of the anchor device should ensure that the anchor can be smoothly dropped and retrieved; ensure that the anchor claws do not scrape against the outer hull plate during the dropping and retrieving process, and can be stably attached to the lower anchor lip after retrieval. Due to the relatively complex shape of the anchor, the lower anchor lip needs to be designed with a curved surface suitable for the shape of the anchor to ensure the fit between the anchor and the lower anchor lip. Even a small change and adjustment in the shape of the lower anchor lip curved surface may affect the state of the anchor during the retraction and deployment process and the degree of fit with the lower anchor lip.

[0003] Before the anchor device is installed on the ship, it is necessary to verify the design scheme through a pulling anchor test on land. In China, a wooden pulling anchor test device is generally used for the test. As Figure 1 shown, the existing pulling anchor test device assembles a reduced-scale wooden model of the anchor 300, anchor chain 310, conventional anchor chain barrel 330, upper anchor lip 320, and lower anchor lip 130 of a full-scale ship, and then uses a power or manual method to simulate the process of dropping and retrieving the anchor. The key is to observe and inspect whether the anchor can be smoothly retracted and deployed, whether the anchor claws will scrape against the outer hull plate 100 during the retraction and deployment process, and whether the anchor 300 is stably attached to the lower anchor lip 130 after being retrieved and fixed. During the test process, it is generally necessary to continuously adjust the shape of the lower anchor lip 130 according to the test situation to improve the dropping, retrieving, and fitting states of the anchor 300.

[0004] Since the flipping of the anchor claws, whether they scrape against the outer plate, and the state after fitting with the lower anchor lip during the final process of retrieving the anchor are affected by many relatively random factors, the adjustment and attempt of the lower anchor lip during the test process are also a repeated and complex process. In the past, the modification of the lower anchor lip shape usually adopted the form of filling and cutting, which was easy to damage the lower anchor lip. When several schemes needed to be repeatedly observed and compared during the test, the lower anchor lip that had been filled and cut back and forth might need to be replaced as a whole. In addition, the range of modification and adjustment of the shape and position of the part of the lower anchor lip in contact with the anchor was relatively small. When a large adjustment and attempt were needed for the lower anchor lip scheme, it might be necessary to redesign and process the test device. Summary of the Invention

[0005] An object of the present application is to provide a pulling anchor test device with an adjustable lower anchor lip position and a test method therefor, which can quickly adjust the position of the lower anchor lip and the shape of the curved surface of the part in contact with the anchor through the rotation and telescoping of the lower anchor lip, so as to quickly verify the influence of different schemes on the pulling anchor effect multiple times.

[0006] The embodiments of the present application are implemented as follows:

[0007] An embodiment of the present application provides a tension anchor test device with an adjustable lower anchor lip position, which includes an upper anchor chain barrel, a lower anchor chain barrel connected to the hull, and a lower anchor lip connected to one end of the lower anchor chain barrel away from the upper anchor chain barrel. The lower anchor chain barrel is rotatably and axially telescopically connected to the upper anchor chain barrel.

[0008] In some alternative embodiments, the upper anchor chain barrel is connected with an upper flange, the lower anchor chain barrel is connected with a lower flange, and the upper flange and the lower flange are coaxially connected by a plurality of fasteners.

[0009] In some alternative embodiments, the upper flange and the lower flange are respectively provided with a plurality of arc-shaped holes arranged at intervals in the circumferential direction, and the fasteners sequentially pass through the arc-shaped holes on the upper flange and the lower flange for connection.

[0010] In some alternative embodiments, a plurality of annular gaskets are provided between the upper flange and the lower flange.

[0011] In some alternative embodiments, the hull and the upper anchor chain barrel are hinged by a plurality of anchor chain barrel mounting hangers.

[0012] In some alternative embodiments, a cushion block or a solidifying agent layer is provided between the lower anchor lip and the hull.

[0013] In some alternative embodiments, the length of the lower anchor chain barrel is less than or equal to 20% of the sum of the lengths of the upper anchor chain barrel and the lower anchor chain barrel.

[0014] In some alternative embodiments, the lower anchor chain barrel and the lower anchor lip are connected as a whole.

[0015] The present application also provides a tension anchor test method with an adjustable lower anchor lip position, which includes the following steps: fixing the lower anchor chain barrel after axially telescoping and rotating it relative to the upper anchor chain barrel, and paying out and taking in the anchor to test the contact condition between the anchor claw and the outer plate of the ship and the fitting condition between the anchor claw and the lower anchor lip.

[0016] The beneficial effects of the present application are as follows: The tension anchor test device with an adjustable lower anchor lip position provided by the present application includes an upper anchor chain barrel, a lower anchor chain barrel connected to the hull, and a lower anchor lip connected to one end of the lower anchor chain barrel away from the upper anchor chain barrel. The lower anchor chain barrel is rotatably and axially telescopically connected to the upper anchor chain barrel. The tension anchor test device and method with an adjustable lower anchor lip position provided by the present application can quickly adjust the position of the lower anchor lip and the shape of the outer surface of the part in contact with the anchor by rotating and telescoping the lower anchor lip relative to the upper anchor chain barrel, so as to quickly verify the influence of different schemes on the tension anchor effect multiple times. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application and should not be regarded as a limitation of the scope.

[0018] Figure 1 is the structure of an existing conventional anchor pulling test device;

[0019] Figure 2 is a schematic structural diagram of an anchor pulling test device with adjustable lower anchor lip positioning provided by an embodiment of the present application;

[0020] Figure 3 is a schematic structural diagram of the connection between the lower anchor chain barrel and the lower anchor lip in the anchor pulling test device with adjustable lower anchor lip positioning provided by an embodiment of the present application;

[0021] Figure 4 is a schematic structural diagram of the separation between the upper anchor chain barrel and the lower anchor chain barrel and the lower anchor lip in the anchor pulling test device with adjustable lower anchor lip positioning provided by an embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of the upper flange and the lower flange in the anchor pulling test device with adjustable lower anchor lip positioning provided by an embodiment of the present application;

[0023] Figure 6 is a schematic structural diagram of the setting of a solidifying agent layer between the lower anchor lip and the hull in the anchor pulling test device with adjustable lower anchor lip positioning provided by an embodiment of the present application.

[0024] In the figure: 100, hull; 110, upper anchor chain barrel; 120, lower anchor chain barrel; 130, lower anchor lip; 140, upper flange; 150, lower flange; 160, fastener; 170, arc-shaped hole; 180, annular gasket; 190, anchor chain barrel installation hanger; 200, cushion block; 210, solidifying agent layer; 220, hull eye plate; 230, anchor chain barrel eye plate; 300, anchor; 310, anchor chain; 320, upper anchor lip; 330, conventional anchor chain barrel. Specific Embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0027] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, and does 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 thus should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0030] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0032] The features and performance of the anchor pulling test device and method with adjustable lower anchor lip positioning according to the present application will be further described in detail below in conjunction with embodiments.

[0033] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown, an embodiment of the present application provides an anchor pulling test device with adjustable lower anchor lip positioning, which includes an upper anchor chain barrel 110 connected to a hull 100, a lower anchor chain barrel 120, and a lower anchor lip 130 connected to an end of the lower anchor chain barrel 120 far from the upper anchor chain barrel 110. The length of the lower anchor chain barrel 120 is 20% of the sum of the lengths of the upper anchor chain barrel 110 and the lower anchor chain barrel 120, and the lower anchor chain barrel 120 and the lower anchor lip 130 are connected as a whole; an upper flange 140 is connected to the upper anchor chain barrel 110, a lower flange 150 is connected to the lower anchor chain barrel 120, the upper flange 140 and the lower flange 150 are coaxially connected by eight fasteners 160. The fasteners 160 are fastening bolts. The upper flange 140 and the lower flange 150 are respectively provided with eight arc-shaped holes 170 arranged at intervals in the circumferential direction. After the fasteners 160 sequentially pass through one arc-shaped hole 170 on the upper flange 140 and the lower flange 150, nuts are used for connection. Five annular gaskets 180 are provided between the upper flange 140 and the lower flange 150, and the five annular gaskets 180 are stacked in sequence along the axial direction of the upper flange 140 and the lower flange 150. The hull 100 and the upper anchor chain barrel 110 are hinged by six anchor chain barrel installation hanging brackets 190. The hull 100 is connected with hull eye plates 220 arranged at intervals in the circumferential direction. Anchor chain barrel eye plates 230 corresponding to the hull eye plates 220 one by one are connected to the outer wall of the upper anchor chain barrel 110. An anchor chain barrel installation hanging bracket 190 is hinged between each hull eye plate 220 and the anchor chain barrel eye plate 230. A spacer 200 is provided between one end of the lower anchor lip 130 far from the lower anchor chain barrel 120 and the hull 100.

[0034] The anchor chain barrel part of the anchor pulling test device with adjustable lower anchor lip position provided by the embodiment of the present application is designed in two parts: an upper anchor chain barrel 110 and a lower anchor chain barrel 120, which are separated. The upper anchor chain barrel 110 is connected to the hull 100, and the lower anchor chain barrel 120 is integrally connected to the lower anchor lip 130. The lower anchor chain barrel 120 is regarded as an extension section of the inner wall of the lower anchor lip 130. The length of the lower anchor chain barrel 120 does not exceed 20% of the sum of the lengths of the upper anchor chain barrel 110 and the lower anchor chain barrel 120. Among them, the upper anchor chain barrel 110 and the lower anchor chain barrel 120 are connected by an upper flange 140, a lower flange 150 and fasteners 160. The upper flange 140 and the lower flange 150 have the same structure and are symmetrically arranged. The upper flange 140 and the lower flange 150 are respectively provided with eight arc-shaped holes 170 arranged at intervals circumferentially along the axis of the anchor chain barrel. When the lower anchor lip 130 needs to be adjusted in position during the test, only need to loosen the fasteners 160, rotate the lower anchor lip 130 together with the lower anchor chain barrel 120 by a preset angle around the center line of the anchor chain barrel, and then pass the fasteners 160 through the arc-shaped holes 170 of the upper flange 140 and the lower flange 150 again to reconnect and fix the upper anchor chain barrel 110 and the lower anchor chain barrel 120.

[0035] Five annular gaskets 180 are provided between the upper flange 140 and the lower flange 150. The operator can adjust the number of the annular gaskets 180 or grind the thickness of the annular gaskets 180 to adjust the distance between the lower anchor lip 130 and the outer plate of the hull 100.

[0036] The hull 100 and the upper anchor chain barrel 110 are hinged by six anchor chain barrel installation hanging brackets 190. The hull 100 is connected with hull eye plates 220 corresponding one by one to the anchor chain barrel installation hanging brackets 190. The outer wall of the upper anchor chain barrel 110 is connected with anchor chain barrel eye plates 230 corresponding one by one to the hull eye plates 220. An anchor chain barrel installation hanging bracket 190 is hinged between each hull eye plate 220 and the anchor chain barrel eye plate 230. When the lower anchor lip 130 needs to be adjusted in position by a large angle during the test and the arc-shaped holes 170 on the upper flange 140 and the lower flange 150 cannot be aligned and the fasteners 160 cannot be installed when rotating the upper anchor chain barrel 110 and the lower anchor chain barrel 120, the anchor chain barrel installation hanging bracket 190 can be cut to rotate the upper anchor chain barrel 110 and the lower anchor chain barrel 120 as a whole so that the lower anchor lip 130 rotates to the required angle, and then the anchor chain barrel installation hanging bracket 190 is fixed again to adjust the rotation angle of the lower anchor lip 130.

[0037] The embodiment of the present application provides an anchor pulling test method with adjustable lower anchor lip position, which is carried out by the above-mentioned anchor pulling test device with adjustable lower anchor lip position, and includes the following steps: axially telescoping and rotating the lower anchor chain barrel 120 relative to the upper anchor chain barrel 110 and then fixing it, and taking in and paying out the anchor to test the contact situation between the anchor claw and the outer plate of the ship and the fitting situation between the anchor claw and the lower anchor lip.

[0038] When installing the anchor pull test device with adjustable lower anchor lip positioning provided by the embodiments of the present application, first pre-install the lower anchor lip 130. According to the design scheme, after determining the installation position of the lower anchor lip 130, remove the lower anchor lip 130, cut a certain size at the edge of the welding joint between the lower anchor lip 130 and the outer plate of the hull 100 at the same height, and at the same time spot-weld several pads 200 with the same size and height between the lower anchor lip 130 and the outer plate of the hull 100 to ensure that the relative position of the lower anchor lip 130 and the outer plate of the hull 100 is the same as the designed state. When it is necessary to adjust the position of the lower anchor lip 130, keep the intersection point of the center line of the lower anchor barrel 120 and the outer plate of the hull 100 unchanged, rotate the lower anchor lip 130 around the center line of the anchor barrel to the position to be tested. At the same time, the number or thickness of the annular gaskets 180 between the upper flange 140 and the lower flange 150 can be adjusted according to the need to adjust the thickness, and the thickness of the pads 200 between the lower anchor lip 130 and the outer plate of the hull 100 can be adjusted to adjust the axial positioning of the lower anchor lip 130, and then fix the upper flange 140 and the lower flange 150 with bolts.

[0039] As Figure 6 shown, when the appropriate position of the lower anchor lip 130 is determined through tests, a solidifying agent can be coated to fill the gap between the lower anchor lip 130 and the structure of the hull 100 to form a solidifying agent layer 210 for fixing the shape and correction, which is convenient for measuring and restoring the positioning and outer shape surface of the lower anchor lip 130.

[0040] The anchor pull test device with adjustable lower anchor lip positioning provided by the embodiments of the present application obtains the upper anchor barrel 110 and the lower anchor barrel 120 by segmenting the anchor barrel in the anchor pull test device and uses the upper flange 140 and the lower flange 150 to connect. By rotating the lower anchor lip 130 and adjusting the number of annular gaskets 180, the outer shape surface and positioning of the contact part between the lower anchor lip 130 and the anchor 300 are adjusted. And methods such as rapid solidifying agent filling and restoring the modified outer shape can be adopted. Without excessive cutting and filling of the lower anchor lip 130, the positioning of the lower anchor lip 130 and the state of the outer shape surface of the contact part with the anchor 300 can be quickly adjusted, so that the influence of different schemes on the anchor pull effect can be quickly verified multiple times. During the test, the position of the lower anchor lip 130 can be changed multiple times, and the influence of the change trend of the surface of the lower anchor lip 130 on the anchor pull effect can be quickly observed, so as to judge the appropriate adjustment scheme of the surface of the lower anchor lip 130. This not only reduces excessive processing and damage to the anchor lip and the resulting long test cycle and modification workload, but also provides more possibilities for selecting, attempting and verifying the design scheme. While improving the efficiency of the anchor pull test, the design efficiency of the anchor device is correspondingly improved. It is applicable to various anchor pull test devices made of different materials and has high economic benefits and practical value.

[0041] The embodiments described above are some, but not all, of the embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

Claims

1. An anchor pulling test device with an adjustable lower anchor lip positioning, characterized in that, It includes an upper anchor chain barrel, a lower anchor chain barrel connected to the hull, and a lower anchor lip connected to one end of the lower anchor chain barrel away from the upper anchor chain barrel. The lower anchor chain barrel is rotatably and axially telescopically connected to the upper anchor chain barrel. The upper anchor chain barrel is connected with an upper flange, and the lower anchor chain barrel is connected with a lower flange. The upper flange and the lower flange are coaxially connected by a plurality of fasteners, and a plurality of annular gaskets are arranged between the upper flange and the lower flange.

2. The pull-anchor test device with an adjustable lower anchor lip position according to claim 1, characterized in that, The upper flange and the lower flange are respectively provided with a plurality of arc-shaped holes arranged at intervals in the circumferential direction, and the fasteners sequentially pass through the arc-shaped holes on the upper flange and the lower flange for connection.

3. The anchor-pulling test device with adjustable positioning of the lower anchor lip according to claim 1, wherein The hull and the upper anchor chain barrel are hinged by a plurality of anchor chain barrel mounting hangers.

4. The draw-anchor test device with an adjustable positioning of the lower anchor lip according to claim 1, characterized in that, A spacer or a solidifying agent layer is arranged between the lower anchor lip and the hull.

5. The pull-anchor test device with an adjustable positioning of the lower anchor lip according to claim 1, wherein, The length of the lower anchor chain barrel is less than or equal to 20% of the sum of the lengths of the upper anchor chain barrel and the lower anchor chain barrel.

6. The anchor-pulling test device with adjustable positioning of the lower anchor lip according to claim 1, characterized in that, The lower anchor chain barrel and the lower anchor lip are connected as a whole.

7. A method for tension anchor test with adjustable positioning of the lower anchor lip, characterized in that, It is carried out by using the pull-anchor test device with adjustable lower anchor lip positioning as described in any one of claims 1-6, and includes the following steps: fix the lower anchor chain barrel after axially telescoping and rotating relative to the upper anchor chain barrel, loosen the fasteners, rotate the lower anchor lip together with the lower anchor chain barrel around the center line of the anchor chain barrel by a preset angle, adjust the number of annular gaskets or polish the thickness of the annular gaskets to adjust the distance between the lower anchor lip and the outer plate of the ship, re-pass the fasteners through the arc-shaped holes of the upper flange and the lower flange, reconnect and fix the upper anchor chain barrel and the lower anchor chain barrel, and pay out and take in the anchor to test the contact condition between the anchor claw and the outer plate of the ship and the fitting condition between the anchor claw and the lower anchor lip.

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