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Bearing shield for bearing a shaft

A bearing cap, support shaft technology, applied in the direction of shafts and bearings, bearing elements, components of pumping devices for elastic fluids, etc., can solve problems such as increased blockage or damage

Active Publication Date: 2010-03-24
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn increases the likelihood that dirt particles in the pump medium will enter the rotor chamber with the liquid and cause blockage or damage there

Method used

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  • Bearing shield for bearing a shaft
  • Bearing shield for bearing a shaft
  • Bearing shield for bearing a shaft

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Embodiment Construction

[0029] Before describing the figures in more detail, it should be pointed out that corresponding or identical elements or parts are denoted by the same reference numerals in the figures.

[0030] figure 1A schematic cross-section through a wet rotor motor 1 of a pump according to an exemplary embodiment of the invention is shown. The wet rotor motor 1 has a shaft 2 with a rotor 3 which is arranged in a cup-shaped rotor housing 4 . The shaft 2 defines an axial direction A along the axis of the shaft 2 and a radial direction R along the radius of the shaft 2 . The rotor housing 4 encloses a rotor chamber 5 in which the rotor 3 can rotate. The rotor housing 4 separates the rotor chamber 5 from the stator (not shown) of the wet rotor electric machine 1 . The rotor housing 4 is designed in particular to be liquid-tight, so that liquid in the rotor chamber 5 cannot wet the stator. A part of the pump housing 6 is molded onto the rotor housing 4 and together with a housing cover (...

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PUM

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Abstract

The invention relates to a bearing shield (14) for bearing a shaft (2), especially of a wet rotor motor (1), the bearing shield (14) having a seat (17) for a shaft bearing (16), especially for a sliding bearing, said seat surrounding the shaft bearing (16) on its outer peripheral surface. The bearing shield comprises a channel (20) leading to an interspace (19) defined between the shaft end (15) and the bearing shield (14) and / or between the shaft bearing (16) and the bearing shield (14), a fluid flowing through said channel (20). A deflection element (22) is arranged on the bearing shield (14) and / or on the seat (17) and deflects the fluid towards the channel (20, 201).

Description

technical field [0001] The invention relates to a bearing shield for supporting the shaft of, in particular a wet rotor electric machine, said bearing shield having a seat for a bearing, in particular a plain bearing, which surrounds the bearing on its outer peripheral surface. The bearing cap has a channel opening into a gap formed between the shaft end and the bearing cap and / or between the bearing and the bearing cap so that a fluid can flow through the channel. Background technique [0002] Wet rotor motors are used, for example, as drive motors for pumps in various appliances, in particular domestic appliances. In such pumps, some of the liquid to be pumped can enter the rotor chamber of the drive motor, causing the drive motor to run in said liquid. The liquid can also be used at this time to lubricate the bearings. However, it can still happen that air remains in the rotor chamber or in the region of the bearing, so that the bearing runs dry, resulting in greater we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/02
CPCF04D13/0633F04D13/0606F04D29/047F16C35/02
Inventor M·卡拉夫斯基
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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