Sealing structure and installation method for cable lead-out on stern tube

Abstract

The invention discloses a sealing structure for cable lead-out on a stern tube and an installation method thereof. The sealing structure comprises: a stern tube, and a through hole for the cable lead-out inside the stern tube is opened on the tube wall of the stern tube , the outer wall of the tube wall of the stern tube is provided with a counterbore with a diameter larger than the through hole, and the counterbore is coaxial with the through hole; the long flange and short tube, the first of the long flange and short tube The ends are welded and connected in the counterbore, a sealing plate is interposed between the first end of the long flange short pipe and the bottom of the counterbore, and a first hole is arranged on the sealing plate; the short flange is short tubes; and sealed boxes. The beneficial effect of the present invention is a new way of sealing and installing the sensor cable in the stern tube, which solves the problem that the stern shaft lubricating oil is easily leaked when the sensor cable is installed in the stern tube, improves the stability of the stern shaft sealing system, and can be widely used. It is suitable for the sealing installation of the sensor cable on the stern tube of various ship types.

Description

technical field [0001] The invention belongs to the field of design and manufacture of a ship stern shaft system, and in particular relates to a sealing structure and an installation method for leading out cables on a stern tube. Background technique [0002] During the operation of the shafting of the ship, an oil film is formed between the shaft and the bearing. When the ship sails normally, the shafting runs smoothly, the journal and each bearing are in a good lubrication state, and the lubricating oil film is evenly distributed. However, due to the interaction of various factors such as the power change of the main engine of the ship, the vibration of the hull, and the maneuvering of the large turn, the shafting of the ship is unstable and the position of the shaft center is constantly changing. Especially for the stern tube bearing, due to its special position, it needs to bear the large propeller cantilever action, inertial action and hydrodynamic action, and is often ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention provides a sealing structure for cable lead-out on the stern tube and its installation method. Some embodiments of the present invention can solve the problem that the sensor cable hole on the stern tube is difficult to seal

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