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Propeller shaft seal installation structure of full-rotation steering oar

A propeller shaft and installation structure technology, which is applied in the transmission, transportation and packaging, and ship propulsion of synchronous propulsion components, to achieve the best sealing performance and ingenious structure

Inactive Publication Date: 2011-02-16
WUXI BAONAN MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the oars and rudders on the ship are separated and work in combination. There are several disadvantages in the working process: (1) The angle of rudder rotation cannot be completely in place under certain circumstances, and cannot To obtain the maximum thrust and rudder effect, the maneuverability and maneuverability of the ship are insufficient
(2) The high-power, high-speed rudder propeller power transmission shafting has problems such as torsional vibration, rotary vibration and system heating during operation, which affect the working stability and service life of the transmission shafting
(3) The design and manufacture of high-power, high-strength bevel gears have extremely high requirements, high precision requirements, and expensive manufacturing costs

Method used

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  • Propeller shaft seal installation structure of full-rotation steering oar
  • Propeller shaft seal installation structure of full-rotation steering oar

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0015] like figure 1 As shown, the propeller shaft 1 is installed on the lower gearbox 7 through a bearing assembly, and the protruding end of the propeller shaft 1 is sealed and assembled with the lower gear case 7; the protruding end of the propeller shaft 1 is covered with a sealing sleeve 2, a bearing The end cover 6 and the sealing gland 3; the inner end of the sealing sleeve 2 is against the bearing assembly, the bearing end cover 6 is set on the sealing sleeve 2 and fixed on the outer wall of the lower gear box 7, between the bearing gland and the sealing sleeve 2 An oil seal 5 is installed; the sealing gland 3 is set on the sealing shaft sleeve 2 and fixed on the bearing end cover 6, and two water seals 4 are installed between the sealing gland 3 and the sealing shaft sleeve 2; the water seal There is a certain cavity between 4 and oil seal 5, which c...

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Abstract

The invention relates to a propeller shaft seal installation structure of a full-rotation steering oar. A propeller shaft is installed on a lower gear box through a bearing assembly, and the extending end of the propeller shaft and the lower gear box are assembled in a seal mode. The invention is characterized in that a seal shaft sleeve, a bearing end cover and a sealing gland are sheathed on the extending end of the propeller shaft; the inner end of the seal shaft sleeve abuts against the bearing assembly; the bearing end cover is sheathed on the seal shaft sleeve and fixed on the outer wall of the lower gear box; an oil seal is installed between the bearing gland and the seal shaft sleeve; the sealing gland is sheathed on the seal shaft sleeve and fixed on the bearing end cover; a water-tight seal is installed between the sealing gland and the seal shaft sleeve; and a cavity is arranged between the water-tight seal and the oil seal and communicated with positive pressure oil in a gravity oil tank. The invention has the advantages of ingenious, compact and reasonable structure, and excellent sealability, and can ensure flexible and stable rotation of the propeller shaft.

Description

Technical field [0001] The invention involves an auxiliary component of a ship promoted device, which is specifically a propeller shaft sealing installation structure of a full -rotating rudder. Background technique [0002] The rudder and paddle are the main components of the ship promotion system. The rudder is used to control the direction of the ship's march, and the paddle provides a driving force for the marching of the ship.In existing technologies, the paddle and rudder on the ship are separated and combined, and there are several disadvantages in the work process: (1) The angle of the rudder rotation cannot be completely in place, cannot be completely in place, cannot be unable to be in place or cannotGet the maximum thrust and rudder effect, the manipulation and maneuverability of the ship.(2) High -power, high -speed rudder paddle power transmission shaft system has problems such as twisting vibration, rotating vibration, and system heating in operation, which affects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H5/125B63H23/34
Inventor 吕爱萍
Owner WUXI BAONAN MACHINE MFG
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