Vertically loaded anchor (VLA) dragging-mooring switching mechanism
A conversion mechanism and mooring technology, which is applied in the direction of anchorage treatment/lashing, ship components, ships, etc., can solve the problems of randomness of safety pin failure, difficulty in predicting the force of the anchor plate, and affecting the installation and positioning of the anchor plate, etc., to achieve structural Simple, easy installation and stable performance
Inactive Publication Date: 2011-08-10
TIANJIN UNIV
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Problems solved by technology
Due to the complexity of the soil, the force on the anchor plate during the towing process is not easy to predict, which will lead to the randomness of the failure of the safety pin, which will fundamentally affect the realization of the installation and positioning of the anchor plate
Method used
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[0025] The mechanism of the conversion mechanism in the application of the present invention is that the conversion mechanism is rotated by changing the force exerting direction of the towing cable, and then the position of the acting point of the drag force is changed to complete the conversion. During the towing process, the conversion mechanism 1 acts as a part of the rear end anchor shank, such as figure 1 Shown in solid line. In the normal bearing stage at the end of the conversion, the conversion mechanism 1 is used as a part of the front end anchor shank, such as figure 1 Shown in dashed line. According to the corresponding length relationship, the four anchor shanks are figure 1 The projected lengths on the plane shown are the same (the anchor shank lengths mentioned below refer to the projected lengths), so as to achieve a state of normal stress. In the figure, where l AD = a is the length of the front end anchor shank, l BD =b is the length of the rear end ancho...
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The invention belongs to the technical field of ocean engineering, and relates to a vertically loaded anchor (VLA) dragging-mooring switching mechanism, which comprises a switching body provided with a chute and three buckles; the switching body is divided into an upper rod and a lower rod by the chute; a front mooring hole and a rear mooring hole are respectively arranged on the front end and the rear end of the chute near the upper rod for connecting a front anchor shank and a rear anchor shank; a clamping groove is arranged on the rear end of the chute close to the upper rod, and the champing groove is communicated with the chute; a shrapnel is arranged at the clamping groove port where the clamping groove and the chute are connected for preventing a slider from falling off after sliding into the clamping groove; three mutually matched buckles are respectively arranged on the front mooring hole, the rear mooring hole and the chute of the switching body; the buckle arranged on the front mooring hole is U-shaped, and two ends of the U-shaped buckle are respectively provided with two rings, while the middle of the U-shaped buckle is provided with a stop lever. The switching mechanism of the invention has the advantages of convenient and reliable installation, simple structure, reliable switching and stable performance.
Description
technical field [0001] The invention belongs to the technical field of marine engineering and is used for scientific research and engineering application of deep water mooring foundation. Background technique [0002] In the development of deep-sea oil and gas resources, with the gradual increase of large and ultra-large offshore compliant structures, mooring systems suitable for deep and ultra-deep water have received increasing attention. The research and development of new deepwater mooring systems and new deepwater mooring technologies is an important research direction in the international marine oil and gas resource development and international marine engineering technology community. [0003] In the mid-1980s, it was discovered that the deep sea contained abundant oil and gas resources, and the research on the development technology of deep-sea oil and gas resources increasingly highlighted its importance. With the advancement of oil and gas exploitation to deep wat...
Claims
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IPC IPC(8): B63B21/04B63B21/22
Inventor 刘海笑柳成林盛志刚张炜
Owner TIANJIN UNIV