a transmission

Abstract

The invention discloses a transmission device, which belongs to the field of a ship machine. The transmission device comprises a transmission shaft and a sealing component; the sealing component comprises a supporting bushing which is fixed on a separation plate between an engine room and a pump room and a first sealing unit which is arranged on one end of the supporting bushing; the supporting bushing is sleeved on the transmission shaft; the first sealing unit comprises a first bearing, a first bearing seat, a first bearing cover, a first rotary shaft seal and a first sealing cover; the first bearing, the first rotary shaft seal and the first sealing cover are respectively sleeved on the transmission shaft; the first bearing seat is sleeved on the first bearing, and one end of the first bearing seat is connected with one end of the supporting bushing; the first bearing cover is sleeved on the first rotary shaft seal; and one end of the first bearing cover is in sealing connection with the other end of the first bearing seat, and the other end of the first bearing cover is connected with the first sealing cover. Due to the adoption of the transmission device, a turbine motor can be vertically connected with a cargo oil pump.

Description

technical field [0001] The invention relates to the field of ship machinery, in particular to a transmission device. Background technique [0002] On a large oil tanker, a special transmission device is required between the turbine and the cargo oil pump to realize the power transmission between the two. Generally, the turbine is placed in the engine room; the cargo oil pump is located in the pump room. Among them, in addition to the turbine, the engine room is also equipped with power sources such as motors, which is a non-hazardous area; while the pump room is filled with flammable and explosive gases volatilized from the cargo oil pump body, which is a hazardous area. In this environment, the transmission device is required not only to achieve reliable power transmission between the turbine and the cargo oil pump, but also to block the gas in the pump room from entering the engine room. [0003] Specifically, the prior art provides a transmission device, which mainly in...

AI Technical Summary

Problems solved by technology

When the engine room and the pump room are in a vertical position, the transmission device is required to vertically connect the turbine and the cargo oil pump; if the existing transmission device is used, first, the sealing element cannot bear the weight of the lubricating oil, and the lubricating oil in the sealing chamber will leak To the outside of the cavity, so that the gas in the pump room cannot be blocked from entering the engine room; second, the transmission shaft runs at high speed in lubricating oil, which will cause efficiency loss; third, the specially arranged cooling unit makes the structure of the existing transmission device more complicated

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