An electric machine and a method for adjusting the axial bearing clearance

An axial bearing and bearing technology, which is used in the manufacture of motor generators, casings/covers/supports, electrical components, etc., can solve the problem of time-consuming adjustment of axial clearances

Inactive Publication Date: 2015-04-29
SEG AUTOMOTIVE GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adjusting the axial play with the aid of the separately supplied adjusting shims is time-consuming

Method used

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  • An electric machine and a method for adjusting the axial bearing clearance
  • An electric machine and a method for adjusting the axial bearing clearance
  • An electric machine and a method for adjusting the axial bearing clearance

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Experimental program
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Embodiment Construction

[0020] figure 1 An electric machine is shown in a very simplified cross-sectional view in which a rotor 1 is inserted into a housing 3 of the electric machine by means of an assembly tool 2 . The rotor 1 and the assembly tool 2 are located in a first assembly step in which the rotor 1 is placed with the lower end 4 of the rotor shaft 5 in a first movable bearing 6 . The rotor shaft 5 bears against the first displaceable bearing 6 with an annular shoulder 7 . Located on the other side of the rotor 1 with the armature 8 and the commutator 9 is a second bearing 10 which is inserted into an axially elastic bearing seat 11 . The second bearing 10 likewise bears against a shoulder 12 of the rotor shaft 5 .

[0021] The bearing support 11 is designed as a rotationally symmetrical sheet metal cover and has an approximately wave-like contour in cross section, which imparts the required axial elasticity to the bearing support 11 .

[0022] On the bearing support 11 , a bearing socket...

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PUM

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Abstract

The invention relates to an electrical machine and a method for adjustment of the axial bearing clearance (LS) between two bearings (6, 10) for mounting a rotor shaft (5) and provided on both sides of a rotor (1) of an electrical machine, wherein the rotor shaft (5) is at least supported axially displaceably in a bearing (6). The axial bearing clearance is adjusted by an axial displacement of the rotor shaft (5) adjoining the bearing (6) with an annular shoulder (7) in its axial position of a slidable first bearing (6), by the deflection movement, compared to a basic position without axial bearing clearancethe, the movable first bearing (6) moves to a final position with a predetermined axial clearance (LS).

Description

technical field [0001] The invention relates to a method for adjusting the axial bearing play of a rotor of an electric machine according to the preamble of claim 1 and an electric machine for carrying out the method with the features of claim 5 . Background technique [0002] To start the internal combustion engine arranged in the vehicle, an electric machine is used, which is also referred to as a starter motor or starter motor. Such electric machines have a rotor whose rotor shaft is supported on both sides. The rotor has an armature formed by a coil with an iron core and for the supply of current has a segmented commutator on which sliding contacts are arranged for the power supply. [0003] In order to keep noise and wear as low as possible during operation of the electric machine, it is necessary to mount the rotor with as little play as possible in the axial direction. To achieve this, the axial play can be adjusted individually with the aid of thin shims, for which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/16H02K15/14
CPCH02K5/1672H02K2213/09
Inventor P·法
Owner SEG AUTOMOTIVE GERMANY GMBH
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