Floating connection device of gearbox and oil pump of hydraulic pump station of engineering ship

Abstract

The invention relates to a floating coupling device for a gear box and an oil pump of a hydraulic pump station of an engineering ship, which comprises: a gear box output shaft head with external splines; an oil pump shaft head with external splines; and a first key sleeve and The floating spline sleeve of the second key sleeve, the first key sleeve is connected to the second key sleeve, the first key sleeve is formed with internal splines, and the second key sleeve is also formed with internal splines; wherein, the first key sleeve and the gear box The output shaft head is splined, and the second key sleeve is splined with the oil pump shaft head, so that the output shaft head of the gearbox and the oil pump shaft head can be connected in a floating manner.

Description

technical field [0001] The invention relates to a transmission device in a hydraulic system of an engineering ship, in particular to a coupling device between a gear box of a hydraulic pump station and an oil pump in the hydraulic system of an engineering ship. Background technique [0002] The hydraulic pump station is one of the key equipment for engineering ships such as cutter suction dredgers and piling ships. Taking the power transmission system of a cutter suction dredger as an example, it generally consists of the following four sets of sub-transmission systems that are independent and closely related to each other: in-cabin mud pump transmission system, hydraulic pump station transmission system, and underwater mud pump transmission system and reamer drive system. The transmission system of the hydraulic pump station is used to transmit the power of the diesel engine to the high-pressure hydraulic oil pump to provide power for the hydraulic devices such as the moto...

AI Technical Summary

Problems solved by technology

At the same time, the working characteristics of the engineering ship hydraulic pump station are constantly changing working conditions. The deformation of the working hull of the engineering ship will inevitably cause the output shaft of the hydraulic pump station gearbox and the shaft of the high-pressure oil pump group to be misaligned.

These factors make the working environment of the spline under the direct spline connection mode very bad. The friction and movement under high load will cause the accumulated high temperature on the tooth surface, thereby reducing the strength of the tooth surface and causing tooth surface wear, which will eventually cause damage to the spline teeth.

In actual use, there have been many serious accidents such as damage to the gear box of the hydraulic pump station and the spline teeth of the hydraulic oil pump, resulting in the failure of the normal construction of the whole ship

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