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Waterproof rolling bearing

A technology of rolling bearings and bearing sleeves, applied in the directions of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of inability to meet outdoor motors and high cost, and achieve the effects of simple structure, improved protection level, and obvious effect.

Inactive Publication Date: 2011-03-02
SEC ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation level of ordinary motor bearing assembly is generally IP54, but it cannot meet the requirements of outdoor motors. If waterproof bearings are used, the cost is high. Therefore, a new type of bearing assembly structure is required under the premise of meeting dust and water resistance.

Method used

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific drawings.

[0013] Such as Figure 1 ~ Figure 2 Shown: Waterproof rolling bearing includes labyrinth ring 1, bearing outer cover 2, shaft spring retaining ring 3, oil slinger 4, rolling bearing 5, first nitrile rubber round bar 6, bearing sleeve 7, bearing inner cover 8, shaft 9 , Oil injector 10, bolt 11, oil guide tube 12, box 13, gasket 14, hexagon bolt 15, spring washer 16, second nitrile rubber round strip 17, etc.

[0014] The present invention includes a rolling bearing 5 and an oil sling 4 sleeved on a shaft 9, a bearing outer cover 2 and a bearing inner cover 8 are respectively arranged on both sides of the rolling bearing 5, and a bearing sleeve 7 is arranged on the outer ring of the rolling bearing 5; A first nitrile rubber round strip 6 is arranged between the outer cover 2 and the bearing sleeve 7; a second nitrile rubber round strip 17 is arranged on the outer surface of the bea...

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Abstract

The invention relates to a waterproof rolling bearing, which comprises a rolling bearing sleeved on a shaft and an oil throwing tray, wherein two sides of the rolling bearing are provided with a bearing outer cover and a bearing inner cover respectively, and a bearing sleeve is arranged on an outer ring of the rolling bearing. The waterproof rolling bearing is characterized in that: a first nitrile rubber round strip is arranged between the bearing outer cover and the bearing sleeve, and a second nitrile rubber round strip is arranged on the outer lateral surface of the bearing sleeve; and a labyrinth ring is sleeved on the shaft outside the bearing outer cover, and the labyrinth ring is matched with a groove on the outer lateral surface of the bearing outer cover. Two sides of the bearing outer cover are provided with two symmetrical oil filling holes respectively, an oil filler is arranged on the oil filling hole of one side, and an oil filler or a bolt is arranged on the oil filling hole of the other side. A box and an oil guide pipe are arranged on the bearing outer cover, and the oil guide pipe is fixed with a spring gasket through a liner. The oil throwing tray and the shaft are sealed by using a spring retainer ring for the shaft. The waterproof rolling bearing has the advantages of simple, compact, sealed and firm structure and reliable dust resistance, water resistance and oil retaining property.

Description

Technical field [0001] The invention relates to a waterproof rolling bearing, in particular to a rolling bearing for outdoor high-voltage three-phase asynchronous large and medium-sized motors. Background technique [0002] The protection level of the outdoor motor is required to reach IP55, and the motor can be dust-proof and waterproof. Even a small amount of dust will not affect the normal operation of the motor. The insulation level of ordinary motor bearing assembly is generally IP54, but it cannot meet the requirements of outdoor motors. If waterproof bearings are used, the cost is high. Therefore, a new type of bearing assembly structure is required under the premise of meeting dust and water resistance. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings in the prior art and provide a waterproof rolling bearing that is easy to operate and reduces cost. [0004] According to the technical solution provided by the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/80
Inventor 韩晓云
Owner SEC ELECTRIC MACHINERY
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