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Device for sealing a bearing lubricated with a liquid lubricant

A technology of bearing components and lubricants, which is applied to the sealing of bearing components, shafts and bearings, engines, etc., can solve the problems of bearing configuration leakage, liquid lubricant blockage, etc., and achieve the design effect

Active Publication Date: 2011-09-28
VOITH PATENT GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Design experiments have shown that the corresponding structure according to the proposal of the above-mentioned scientific publication is slightly improved, but in the case of very high-speed shafts, especially with large diameters and relatively high peripheral speeds, liquid still forms in the outer seal chamber Severe blockage of lubricant, which causes corresponding leakage of the bearing arrangement

Method used

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  • Device for sealing a bearing lubricated with a liquid lubricant
  • Device for sealing a bearing lubricated with a liquid lubricant
  • Device for sealing a bearing lubricated with a liquid lubricant

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Embodiment Construction

[0038] figure 1 Shown is the rotating part 1 within a non-rotating housing 2 . Correspondingly, rotating parts are denoted by reference numerals starting with 1, and non-rotating parts are denoted by reference numerals starting with 2.

[0039] The rotating part 1 is the shaft in the drive system and is of relatively large diameter, typically greater than 300 mm. The rotating part rotates relatively quickly, so that a peripheral speed greater than or much greater than 30 m / s is developed on the outer circumference of the shaft. In addition to the rotating part 1 , the bearing housing 101 , which is here the bearing housing 101 of the bearing 3 like a tapered roller bearing, also rotates. The bearing 3 is designed with a seat (not shown) in a so-called X configuration and mounts the rotating part 1 . Together with the bearing housing 101 and the rotating part 1 , the rotating labyrinth sealing ring 102 also rotates as part of the device 4 for sealing the bearing 3 . In addi...

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Abstract

The invention relates to a device for sealing a bearing, which is lubricated with a liquid lubricant, of a rotating component. Said device has at least one inner sealing chamber (6) which runs around in the circumferential direction and one outer sealing chamber (7) which likewise runs around in the circumferential direction. The sealing chambers (6, 7) correspond via sealing gaps (9). The outer sealing chamber (7) is sealed off with respect to the environment by means of a labyrinth seal (8). The sealing chambers (6,7) have in each case at least one outlet (61,71) into the housing of the rotating component (1). During intended use, the outlet in the outer sealing chamber (7) is arranged at the lowest point of the sealing chamber (7). According to the invention, at least one second outlet(72) is provided in the outer sealing chamber (7), which second outlet is arranged above the lowest point of the sealing chamber (7) in the circumferential direction.

Description

technical field [0001] The invention relates to a device for sealing a bearing assembly of a rotating part, which is lubricated with a liquid lubricant, and which device has the features according to the preamble of claim 1 . Background technique [0002] Such seals for rotating parts, in particular rotating shafts, designed in the form of contactless labyrinth seals are common and typical. These sealing devices usually include two or more sealing chambers, which are also called labyrinth chambers. In each case, a simple or tortuous sealing gap is formed between the sealing chambers, so that, on the one hand, a contact-free rotation of the rotating part is possible and, on the other hand, it represents a flow resistance for the liquid lubricant. The outer seal chamber is then sealed against the surrounding environment with the actual labyrinth seal. The labyrinth seal comprises a structure forming a generally always meandering sealing gap between two parts which rotate and...

Claims

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Application Information

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IPC IPC(8): F16C33/66F16C33/80F16J15/00
CPCF16J15/004F16C33/6685F16J15/162F16C33/80
Inventor 弗兰克・斯塔巴蒂
Owner VOITH PATENT GMBH
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