Marine gear box

Abstract

The invention relates to a marine gear box. The marine gear box comprises a shell, an input shaft component, a transmission shaft component, an output shaft assembly and a control system component, wherein a clutch housing and a right-handed transmission gear are integrally formed; a clutch holder is welded to one end of a driving gear assembly through electron beams; a coupling and the right-handed transmission gear are driven through a key; a driven gear on the output shaft component is in engaged transmission with the driving gear assembly on the input shaft or a first transmission gear assembly on the transmission shaft component; and the control system component comprises a hydraulic controller, an oil distributor seat, a lubricating valve and a double-barrel oil filter, and the hydraulic controller, the oil distributor seat and the lubricating valve are separately fixed on the oil distributor seat and communicate with corresponding oil holes. According to the marine gear box, the overall size of the gear box is more compact; and all functional parts of the control system component are integrated and modularized, so that excessive parts are reduced, pipeline connection is reduced, and the ship type design requirement can be better met.

Description

technical field [0001] The invention relates to the technical field of marine power transmission devices, in particular to a marine gear box. Background technique [0002] Currently, marine gearboxes in the prior art generally have two structural types: external support and internal support. The driving gear of a traditional external support structure marine gearbox is generally supported on the box by two bearings, resulting in a relatively large axial dimension. Difficult to disassemble and maintain. The traditional internal support structure of the marine gearbox drive gear and clutch seat adopts an integrated structure, the friction plate is relatively small, and the transmission power is limited, and because the drive gear generally needs to be vacantly sleeved on the input shaft or drive shaft through a needle bearing or a sliding bushing In general, the axial force of the gear must be borne by thrust needle rollers or thrust sliding bearings. The structure is complex...

AI Technical Summary

Problems solved by technology

The hydraulic system of a small marine high-speed gearbox is generally composed of an oil suction filter, a gear pump, a water cooler, an oil filter, and a control valve group. The two oil pipes are connected to each other, which makes the manufacturing and installation of the gearbox very troublesome, especially for the gearbox that the user needs to install an alarm. Various oil pipes are distributed in a disorderly manner outside the gearbox, which is easy to damage and leak oil, and makes the appearance unattractive. The distributed lubricating pressure valves are not effective in regulating the lubricating oil pressure, which can easily cause an alarm when the lubricating oil pressure is too low at low speed, and the pressure exceeds the range at high speed, which will bring great trouble and loss to the use

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