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High-pressure synchronous oil seal special for sterm axle of ocean ship

An oil seal, high pressure technology, applied in the direction of engine seal, engine components, mechanical equipment, etc., can solve the problems of high pressure resistance, cracking, expansion and contraction stiffness, etc., to achieve high working reliability, low friction coefficient and long working life. Effect

Inactive Publication Date: 2007-02-14
李世彬 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the fatal shortcoming of Simplex’s oil seal products is that because the U-shaped groove is too thick, the expansion and contraction are relatively rigid, forming double friction force of lip force and stern shaft swing eccentric force and the temperature generated by friction, which is easy to cause oil seal failure. The lip is aged, worn and cracked, causing the oil seal to be damaged or not resistant to high pressure, and the pressure resistance is less than 0.5Mpa
[0006] Therefore, Simplex products still cannot meet the needs of large eccentric shafts in ship stern shafts and other heavy-duty power devices. It is necessary to solve the tightening force and eccentricity generated or existing at the same time as the ship's stern shaft seal. Force and oil pressure, must research and manufacture a dedicated, more powerful synchronous high-pressure oil seal

Method used

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  • High-pressure synchronous oil seal special for sterm axle of ocean ship
  • High-pressure synchronous oil seal special for sterm axle of ocean ship

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Embodiment Construction

[0027] Such as figure 1 shown. A special high-pressure synchronous oil seal for the stern shaft of a ship, characterized in that the high-pressure synchronous oil seal is composed of three circular parts fixedly connected with a hoop part, an eccentric follower part and an oil pressure receiving part; the fixed connection between the three parts The connection is composed of the outer metal frame 1 on the outer circle, the synchronous frame 5 in the middle, and the oil seal frame 7 on the top, which are both isolation and fixed connection.

[0028] The clamp part is made of filled polytetrafluoroethylene (TF4) material to make the lip 9, under the action of the metal clamp spring 8, the top edge of the lip 9 is close to the rotating shaft 14, and the bottom of the lip 9 The disc is fixedly placed between the compression washer 10 and the rubber washer 11, and the above-mentioned parts are composed of an oil seal outer skeleton fixedly wrapped.

[0029] The tightening force ...

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Abstract

A high pressure synchronous oil seal specially used on stern shaft of oceangoing ship is featured as forming high pressure synchronous oil seal by firm-jointing three ring shaped components of hoop component, eccentric following component and oil pressure bearing component; applying form of placing external metal framework at external circle, synchronous framework at middle and oil seal framework at top as firm-joint of three said components.

Description

technical field [0001] The invention relates to an oil seal technology, in particular to a high-pressure synchronous oil seal dedicated to the stern shaft of ocean-going ships, such as ships, warships and submarines, which have large eccentric force, high pressure and are difficult to seal. technical background [0002] The 10,000-ton ship used in ocean transportation is powered by the rotation of the stern shaft to drive the propeller (propeller) to rotate to generate thrust and push the ship forward. The stern shaft is tens of meters long, generally about 30 to 60 centimeters in diameter, and the maximum can be more than one meter. To propel thousands or tens of thousands of tons of seagoing ships, the thrust is large and the radial eccentric swinging force is strong. It is conceivable. [0003] Standard oil seal technology has been widely used in machinery manufacturing, chemical industry, metallurgy, mining, petroleum, transportation, transportation, aviation, navigatio...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/3208F16J15/3284
Inventor 李世彬焦新法
Owner 李世彬
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