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Bearing sealing device

A bearing sealing and bearing technology, which is used in the sealing of engines, components of pumping devices for elastic fluids, and non-variable-capacity pumps, can solve problems such as expensive users, and achieve lubricant leakage control and performance. The effect of stability and pollution source control

Inactive Publication Date: 2008-08-20
山东东方天明机械制造有限公司 +1
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Problems solved by technology

Among them, various engineering plastics are an ideal choice, but their high prices make it difficult for users to afford

Method used

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Embodiment Construction

[0020] In order to clearly illustrate the technical characteristics of this solution, the following describes this solution through a specific implementation and in conjunction with the accompanying drawings.

[0021] It can be seen from Figure 1 that the end cover 4 is connected to the bearing body 7 by bolts, the bearing positioning sleeve 1 is sleeved on the shaft 15. The outer cylindrical surface of the bearing positioning sleeve 1 has a stepped concentric cylindrical surface, and a labyrinth ring is provided on the concentric cylindrical surface The groove 3 and the end cover 4 have a stepped concentric inner cylindrical surface matched with the bearing positioning sleeve 1. From Figure 1, Figure 5 with Figure 6 It can be seen that there is a leakage hole I10 on the outer inner cylindrical surface of the end cover 4, which is located directly below the installation position of the end cover 4. The inner cylindrical surface and the outer cylindrical surface of this cylinder a...

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Abstract

The invention relates to a bearing sealing device, in particular to a bearing sealing device used for various centrifugal slurry pumps or other rotation equipment such as pumps and motors, etc. The bearing sealing device comprises an end cover and a bearing positioning sleeve and is characterized in that the external cylindrical surface of the bearing positioning sleeve is provided with a step-shaped concentric cylindrical surface; at least one concentric cylindrical surface is provided with a maze; the end cover is provided with a step-shaped concentric internal cylinder surface which is matched with the bearing positioning sleeve. By adopting the bearing sealing device, the sealing elements are few, the installation is convenient and quick; the sealing elements have no contacts, no friction or sliding phenomena, thus not being damageable parts; furthermore, the bearing sealing device also has active pollution intervention function, large freedom of material selection and low cost.

Description

Technical field: [0001] The invention relates to a bearing sealing device, in particular to a bearing sealing device used for various centrifugal slurry pumps or other pumps, motors and other rotating equipment. Background technique: [0002] As far as working conditions require continuous operation of rotating equipment, the protection and sealing of bearings are of vital importance. Among various sealing methods, the labyrinth seal has become the first choice for continuous rotating equipment bearing sealing methods due to its comprehensive advantages in terms of manufacturing cost, service life, sealing performance and energy consumption. [0003] In the prior art, the labyrinth sealing device with the best sealing performance is a labyrinth seal design with a number of moving and fixed labyrinth sets and a 0-ring. Under normal circumstances, the moving and fixed labyrinth sets are buckled together as a whole. The outer circumference of the fixed labyrinth set and the inner ci...

Claims

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Application Information

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IPC IPC(8): F16J15/447F04D29/10
Inventor 赵天明安德鲁·菲利普·约翰·柯林斯
Owner 山东东方天明机械制造有限公司
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