Telescopic bilge piece system driven by gear

Abstract

A telescopic bilge piece system driven by a gear is composed of a bilge piece main body structure and an additionally-arranged plate arranged above a bilge piece main body and capable of stretching and retracting along a sliding rail. The edge of the side, close to a boat body, of the bilge piece main body structure is fixed to an external plate of a bilge part, and the connecting position is provided with a covering plate for reinforcing; and the additionally-arranged plate is located above the bilge piece main body structure and connected with the bilge piece main body structure through a slide way. The slide way is located on the inner surface, making contact with the additionally-arranged plate, of the bilge piece main body structure, a groove is formed in the upper surface of the bilge piece main body structure, and a protrusion is arranged on the lower surface of the additionally-arranged plate. Power driving the additionally-arranged plate to slide is from a gear transmission system. The gear transmission system is composed of the gear, bearings, a transmission shaft and a rotary shaft. A rack is fixed to the lower surface of the additionally-arranged plate and transversely arranged. On the transmission shaft and the rotary shaft, the bearings are reasonably arranged on the necessary positions.

Description

technical field [0001] The invention relates to a marine equipment for reducing roll, a bilge keel whose shape can be changed according to sea conditions, that is, a gear-driven telescopic bilge keel system used for anti-rolling and anti-tilting of ships. Background technique [0002] The rolling of the ship has the greatest impact on the performance of the ship. In order to slow down or reduce the rolling of the ship, an anti-rolling device can be added to the ship. At present, the commonly used anti-rolling devices for ships include: bilge keels, fin stabilizers, water tanks, gyro stabilizers, rudder stabilizers, etc. Among them, the bilge keel is widely used because of its simple structure, low cost, convenient maintenance and good performance. Almost every ship is equipped with a bilge keel. The principle of bilge keel anti-rolling is to use it installed on the shell of the bilge of the hull to generate additional water resistance to the ship's roll, so as to reduce the...

AI Technical Summary

Problems solved by technology

[0005] The existing bilge keel structure has the following defects and deficiencies: it is easily damaged; it produces certain navigational resistance to the ship

Moreover, limited by the size of the bilge keel, the damping moment of the anti-rolling is limited, and the ability of anti-rolling (reducing the swing amplitude) is limited. The anti-rolling effect is generally around 10% to 20%, which is difficult to meet the demand

In addition, for a certain bilge keel, due to the fixed shape and size of the bilge keel, dynamic adjustments cannot be made in response to changes in sea conditions, roll angles and accelerations, which greatly affects its application range

Images