An adjustable marine stern shaft sealing device
A sealing device and adjustable technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of short service life of marine stern shaft seals, and achieve the effect of prolonging service life, convenient maintenance, and saving cost and time.
Active Publication Date: 2022-04-05
湖南永盛船舶有限公司
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Problems solved by technology
[0003] The main purpose of the present invention is to provide an adjustable marine stern shaft seal device to solve the problem of short service life of the existing marine stern shaft seals
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the figure). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, in the present inve...
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The invention discloses an adjustable marine stern shaft sealing device, which is applied to the stern shaft. The front end and the rear end of the stern shaft are respectively installed in the stern shaft casing through the front bearing and the rear bearing. Multiple sealing components on the shaft, the outer wall of the multiple sealing components coaxially set and installed on the end face of the stern shaft sleeve, the end cover installed on the end face of the outer sleeve away from the stern shaft sleeve, and the end cover is connected in the axial direction The adjustment assembly for adjusting the seal assembly; the seal assembly includes an inner taper sleeve, a skeleton oil seal, and an oil seal seat that are coaxially fitted from the inside to the outside, and each inner taper sleeve is sequentially abutted and fitted on the stern shaft with the big end facing the stern shaft sleeve superior. Utilize the structural characteristics of the inner taper sleeve to select a suitable standard oil seal to save cost and time. When grooves appear in the inner tapered sleeve due to wear, adjust the axial position of the skeleton oil seal against the inner tapered sleeve through the adjustment component, so that the sealing device can restore to the ideal sealing effect, thereby prolonging the service life of the sealing device.
Description
technical field [0001] The invention relates to the field of sealing devices, in particular to an adjustable marine stern shaft sealing device. Background technique [0002] Existing marine stern shaft seals are generally sealed with mechanical seals or oil seals to prevent waste and environmental pollution caused by lubricating oil leakage, and at the same time prevent water from entering the drive shaft to wear out the bearings and emulsify the lubricating oil. The cost of mechanical seal is high, and its versatility is relatively poor. It needs to be customized according to the size of the stern shaft, and the maintenance and replacement time is relatively long. Although the oil seal seal is simple and low in cost, it is easy to wear grooves and has a short service life. Therefore need badly a kind of sealing device with long service life. Contents of the invention [0003] The main purpose of the present invention is to provide an adjustable marine stern shaft sealing...
Claims
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IPC IPC(8): F16J15/16F16J15/3268F16N11/00
CPCF16J15/162F16J15/3268F16N11/00
Inventor 王大臣王大轩赵亚飞杨巍邬鑫
Owner 湖南永盛船舶有限公司