A gear box for high-speed ships

Abstract

The invention discloses a gear case for a high-speed ship. The gear case comprises an input shaft, a first clutch casing, an input driving gear fixedly connected with the first clutch casing, a primary driven gear meshed with the input driving gear, a reverse shaft, a second clutch casing, a reverse driving gear fixedly connected with the second clutch casing and an output shaft which is in transmission connection with the primary driven gear. By means of the arrangement, the gear case can meet requirements for big power, high rotation speed, strong bearing capability, light weight and big reduction ratio scope of a power transmission device for the high-speed ship by improving the design of the existing clutch component and expanding reduction ratio scope.

Description

technical field [0001] The invention relates to the technical field of power transmission, and more specifically relates to a gear box for high-speed ships. Background technique [0002] The gearbox is an important power transmission device for various high-speed ships such as official law enforcement boats, yachts, and passenger ships. The load-carrying capacity, reliability and volumetric weight of the box put forward higher and higher requirements. [0003] In the prior art, gearboxes for high-speed ships mainly include box body parts, input shaft parts, reversing shaft parts, output shaft parts, and hydraulic control parts, etc., and mostly adopt one-stage reduction, and the transmission system consists of four shafts and five gears. A gear box for high-speed ships in the prior art will be introduced in detail below. [0004] Please refer to figure 1 , figure 1 It is a schematic diagram of a transmission structure of a marine gearbox in the prior art. [0005] The g...

AI Technical Summary

Problems solved by technology

[0009] However, the design of the gearbox clutch parts for high-speed ships in the prior art makes the input shaft 01 and the front axle shaft 03 in the front and rear positions of the same axis, and the reverse shaft 08 and the reverse gear shaft 09 are also in the front and rear positions of the same axis. As a result, the axial size of the gearbox is larger, the structure of the box is complex, and the volume of the box is larger. At the same time, there are more supporting bearings for the internal transmission components, resulting in a larger weight of the gearbox and higher manufacturing costs. Later maintenance and Inconvenient maintenance

[0010] In addition, the gearboxes for high-speed ships in the prior art are mostly one-stage reduction, the reduction ratio range of the power transmission system is small, and the range of power and speed of the diesel engine that can be matched is small.

[0011] Therefore, how to solve the problems of large volume and weight, high manufacturing cost and inconvenient maintenance and repair in the prior art of high-speed marine gearboxes has become an important technical problem to be solved by those skilled in the art.

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