Stabilizing fin execution mechanism capable of realizing large fin rotating angle

Abstract

The invention relates to a stabilizing fin execution mechanism capable of realizing a large fin rotating angle. A gear-rack cylinder is installed at the front end of a supporting seat and connected with a fin shaft group installed at the rear end of the supporting seat, two cylindrical racks and a gear shaft of the gear-rack cylinder are integrated inside a box body, the hollow gear shaft is connected with the fin shaft group by virtue of a key, the two cylindrical racks are arranged at the upper end and the lower end of the gear shaft and engaged with the gear shaft, two ends of each cylindrical rack are respectively arranged in a cylinder barrel fixed at two sides of the box body and forms a diagonal double-gear cavity, the diagonal double-gear cavity is connected to a driving source hydraulic unit by virtue of an oil pipe, the two cylindrical racks transfer the hydraulic pressure to the gear shaft by virtue of the engagement of the gear, so that the reciprocating rectilinear movement of the cylindrical racks is converted to the swinging of the fin shaft group. The stabilizing fin execution mechanism is simple and compact in structure, the cabin occupation space of the execution mechanism can be obviously reduced, a working angle can reach up to + / -65 degrees, the rotating angle requirement at the zero speed can be satisfied, a good stabilizing effect can be ensured, and the reliability of the system can be greatly improved.

Description

technical field [0001] The invention relates to a device for reducing rolling motion of a ship, in particular to a fin stabilizer at zero speed, and belongs to the technical field of fin stabilizer actuators. Background technique [0002] Existing fin stabilizers can provide a variety of anti-roll configuration schemes for various ships, and the technology is relatively mature to ensure that ships have good anti-roll requirements at medium / high speeds. The demand for anti-rolling at sea speed is becoming increasingly urgent. For this reason, a comprehensive anti-rolling system combining the anti-rolling water tank and the fin stabilizer has been developed in China, that is, the anti-rolling water tank is used for anti-rolling at zero speed, and the anti-rolling water tank is used at medium / high speed. The combination of tank and fin stabilizer requires design, installation and maintenance of two sets of independent equipment, which is not economical, and takes up a lot of sp...

AI Technical Summary

Problems solved by technology

Although this design takes into account ordinary fin stabilizers, it only needs to design and maintain a set of equipment, and the cost and volume do not increase much, but it is limited by the maximum fin fins that can be achieved because the actuators use the drive structure of crank connecting rods. The congenital deficiency of the working angle is only ±40°, and the anti-rolling effect at zero speed is limited, which cannot meet the anti-rolling requirements of ships at low or even zero speeds. come difficult

Images