Air curtain type dustproof seal structure
A dust-proof sealing, air curtain technology, applied in the direction of engine sealing, bearing components, engine components, etc., can solve the problems of dust-proof failure, inability to waterproof, damage to bearings and other parts, etc., to achieve low maintenance frequency, sealing and safety. Good waterproof effect
Inactive Publication Date: 2014-09-24
ANHUI ANFENG FAN
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Problems solved by technology
[0002] When using dust-proof felt to seal the joint between the main shaft and the bearing box on it, the dust-proof felt needs to be pressed frequently through the sealing gland to compensate for the loss caused by the friction between the dust-proof felt and the main shaft, and when the dust-proof felt After a lot of dust accumulates on the linoleum, it must be stopped for replacement, otherwise the dustproof will fail and it will not be waterproof, which will eventually lead to water ingress in large-scale equipment placed in the open air, reducing the lubricating performance of the lubricating oil, and even damaging parts such as bearings
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[0015] Examples, see Figure 1 to Figure 5 Shown: an air curtain type dustproof sealing structure, used to seal the bearing 200 on the main shaft 100 . The air curtain type dustproof sealing structure includes a bearing box 10, the bearing box 10 has a right side plate 11, and an installation hole 12 is opened on the right side plate 11, and the left end of the main shaft 100 and the bearing 200 are located in the bearing box 10 Inside. Furthermore, a side cover 20 is disposed inside the mounting hole 12 . The side cover 20 has a main shaft hole 21 through which the left end of the main shaft 100 passes from right to left, and the main shaft hole 21 has a convex edge 22 extending to the right, and the right end of the convex edge 22 extends outward to form a Step 23, the step 23 is disc-shaped. Meanwhile, the left part of the main shaft 100 is fixed with an air curtain dust cover 30 which is non-rotatable relative to the main shaft 100 . The air curtain type dust cover 30 ...
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The invention discloses an air curtain type dustproof seal structure used for sealing a bearing on a main shaft. The dustproof seal structure comprises a bearing box, wherein the bearing box is provided with a right side plate in which a mounting hole is formed; the left end of the main shaft and the bearing are both located in the bearing box; a side cover body which is provided with a main shaft hole is arranged in the mounting hole; a bulged brim which extends to the right is arranged in the main shaft hole; a step is formed when the right end of the bulged brim extends outwards; an air curtain type dust shield is fixed on the left part of the main shaft; an inner hole is formed in the air curtain dust shield; the left part of the main shaft penetrates into the inner hole; a seal ring is embedded on the side wall of the inner hole; the air curtain dust shield is provided with a connection part which extends outwards; when the outer edge of the connection part extends to the left, and an air curtain cover is formed; at least two projections are distributed on the inner wall of the air curtain cover; the air curtain cover sleeves the external of the step; a gap is formed between the projections and the step. The air curtain type dustproof seal structure has the advantages that the main shaft can be well sealed; waterproof performance is better; frequency of maintenance is lower.
Description
technical field [0001] The invention relates to the technical field of sealing devices, in particular to an air curtain type dustproof sealing structure. Background technique [0002] When using dust-proof felt to seal the joint between the main shaft and the bearing box on it, the dust-proof felt needs to be pressed frequently through the sealing gland to compensate for the loss caused by the friction between the dust-proof felt and the main shaft, and when the dust-proof felt After a lot of dust accumulates on the linoleum, it must be stopped and replaced, otherwise the dustproof will fail, and it will not be waterproof, which will eventually lead to water ingress in large-scale equipment placed in the open air, reducing the lubricating performance of the lubricating oil, and even damaging parts such as bearings. Contents of the invention [0003] The purpose of the present invention is to provide an air curtain type dust-proof sealing structure, which has the characteri...
Claims
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Login to View More IPC IPC(8): F16J15/40
CPCF16C35/04F16J15/40
Inventor 叶团结
Owner ANHUI ANFENG FAN