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Pump sets with integrated bearing units

A technology for pump sets and bearings, which is applied in the direction of bearing components, rigid supports of bearing components, bearings, etc., which can solve the problems of limited machinability of carbon bearings and achieve the effect of reducing wear

Active Publication Date: 2019-03-08
WILO SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be noted that the machinability of carbon bearings is limited

Method used

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  • Pump sets with integrated bearing units
  • Pump sets with integrated bearing units
  • Pump sets with integrated bearing units

Examples

Experimental program
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Effect test

Embodiment Construction

[0059] Figure 1a and 1b Shown is a first variant of a bearing unit 1 for a pump assembly not further shown, in particular for a heat grid or drinking water pump, comprising a pump housing delimiting a pump chamber, a wet-running The electric motor and the shaft 20 carrying the rotor of the electric motor are supported by at least one such bearing unit 1 through which the shaft 20 extends. Figure 1b Shown is a perspective half-sectional view of this structural variant. The bearing unit 1 is provided for fastening in a not shown can. It has an inner area which forms the slide bearing 3 and supports the shaft 20 and an outer area which forms the bearing seat 2 and is placed in the can. The bearing unit 1 is made entirely of frictional plastic material, so that the bearing housing 2 is integral with the slide bearing 3 .

[0060] “Frictionally active” in this context means that the plastic material itself already has a friction function or has been optimized with respect to f...

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Abstract

The present invention involves a pump group, especially for damp air pumps for thermal or drinking water equipment. The pump group includes: a pump shell for limited pump cavity; electric motor; and a shaft (20) that carries the motor rotor (20).At least one bearing unit (1) inheritance in the sewing tube (1), this shaft (20) passes through the bearing unit extension. Among them, the bearing unit (1) is formed by plastic injection and is sliding bearing (3) and bearings.Seat (2) Composition.The bearing unit (1) has an internal area that constitutes a sliding bearing (3) and supports the shaft (20), as well as a bearing seat (2), and keeps it in the external area of the seam tube.In addition, the bearing unit (1) is made of plastic material that is completely friction, or only the internal area that constitutes a sliding bearing (3) is the coating (8) or overwriting of the material composed of a bearing seat (2).Floor.

Description

technical field [0001] The invention relates to a pump unit, in particular a dehumidifying air pump for heating or drinking water installations, comprising a pump casing defining a pump chamber, an electric motor and a shaft carrying a rotor of the electric motor, the shaft being fixed by at least one A bearing unit is mounted in the can, through which the shaft extends, the bearing unit being injection molded in one piece from plastic and comprising a plain bearing and a bearing seat. Background technique [0002] In today's pump sets, the components of such a bearing unit are mostly structurally independent of one another due to their functional properties and are produced in individual mutually independent manufacturing steps. Plain bearings are usually made of graphite, metal or wear-resistant plastics, while bearing housings that receive the plain bearings in a form-locking or non-positive fit are made of conventional plastics or metals that are subject to wear. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06B29C45/16F04D29/046F16C33/20H02K5/167
CPCB29C45/16F04D13/0633F16C33/20F16C35/02H02K5/1672F04D29/0413F04D29/047F05D2300/43F16C2240/60F16C2208/02F16C2223/42F16C2240/48F16C2220/04F16C2202/50F16C33/208F16C2208/58F16C2206/04F16C2208/78F16C2208/76H02K5/02H02K5/08H02K7/083H02K2205/03
Inventor B·屈斯特H·祖拉B-T·斯托克J·青楚斯
Owner WILO SE