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Seal device special for railway bearing

A sealing device, railway bearing technology, applied in bearing components, shafts and bearings, mechanical equipment, etc., to prevent grease leakage

Inactive Publication Date: 2009-04-22
WAFANGDIAN BEARING GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sealing method of the existing railway bearing sealing device is a pure labyrinth seal. Due to the increase in the load capacity of railway transportation, the size series of the bearing also needs to be increased accordingly. However, due to the limitation of the length of the journal that cooperates with the bearing, the bearing needs to be designed Form a compact self-sealing structure, and the existing labyrinth seal is not suitable for this structure, so the sealing structure needs to be modified

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  • Seal device special for railway bearing

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0010] Such as figure 1 As shown, the present invention is mainly composed of an outer ring 1, an outer oil seal 2, an inner steel frame 3 and an inner ring 4. The outer oil seal 2 is matched with the teeth of the outer ring 1 of the bearing, and the inner and outer diameters of the inner ring 4 are matched with the sealed inner steel frame 3. Cooperating, the sealing device is composed of the outer oil seal 2 and the inner steel frame 3. The inner lip of the outer oil seal 2 is in contact with the inner steel frame 3 to form a contact seal, and the inner steel frame 3 and the outer rubber of the outer oil seal 2 form a labyrinth seal. Through these two seals, the bearing has good sealing performance.

[0011] The sealing device of the present invention contacts the inner lip of the outer oil seal 2 with the inner steel frame 3 to form a contact seal, which constitut...

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Abstract

The invention relates to the technical field of metallurgical manufacturing, in particular to a sealing device which mainly consists of an outer ring (1), an outer oil seal (2), an inner steel skeleton (3) and an inner ring (4), the outer oil seal (2) is matched with grippers of the bearing outer ring (1), the inner diameter and the outer diameter of the inner ring (4) are matched with the hermetic inner steel skeleton (3), an inner lip of the outer oil seal (2) contacts with the inner steel skeleton (3) to form a contact type seal, and the inner steel skeleton (3) and an outer rubber layer of the outer oil seal (2) form a labyrinth seal. The sealing device has the beneficial effects of effectively preventing lubricating grease from leakage, and preventing outside dust and impurities from entering bearings.

Description

technical field [0001] The invention relates to the technical field of metallurgical manufacturing, in particular to a labyrinth-like sealing device applied to railway bearings. Background technique [0002] The sealing method of the existing railway bearing sealing device is a pure labyrinth seal. Due to the increase in the load capacity of railway transportation, the size series of the bearing also needs to be increased accordingly. However, due to the limitation of the length of the journal that cooperates with the bearing, the bearing needs to be designed Form a compact self-sealing structure, and the existing labyrinth seal is not suitable for this structure, so the sealing structure needs to be modified. Contents of the invention [0003] The purpose of the present invention is to provide a special sealing device for railway bearings, which meets the requirements of the compact self-sealing structure required by existing bearings, can effectively prevent grease from ...

Claims

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Application Information

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IPC IPC(8): F16C33/78
Inventor 宋世勇王晓华王惠玲崔传荣庞伟武广富
Owner WAFANGDIAN BEARING GRP CO LTD