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motor

A shell and rolling bearing technology, applied in the direction of electromechanical devices, electrical components, mechanical equipment, etc., can solve problems such as troublesome time, increased manufacturing costs, and increased number of process steps

Inactive Publication Date: 2017-04-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional connection types require either cumbersome process steps that prolong or interrupt the production sequence or additional components that increase the number of process steps and increase the manufacturing costs.

Method used

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Embodiment Construction

[0018] Refer below figure 1 with 2 The motor according to the first preferred embodiment according to the present invention is described in detail.

[0019] figure 1 A partial cross-sectional view of the motor 1 is shown. The motor has a housing 2, a shaft 3, and a rolling bearing 4. The rolling bearing has an inner ring 5, an outer ring 6 and a large number of rolling elements 7, which are only visible in the cross-sectional view. Out of two rolling elements 7. The outer ring 6 of the rolling bearing 4 resting on the housing bottom 9 of the housing end region 8 of the housing 2 is fixed by means of the first and second welded connections 10, 11 arranged in parallel on the housing 2 completely around. Thus, the rolling bearing 4 forms a floating bearing of the motor 1, the outer ring 6 of the bearing is fixed on the housing 2 and the inner ring 5 of the bearing rotatably supports the shaft 3. As an alternative, a design solution as a fixed bearing can also be provided, wherein t...

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PUM

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Abstract

The machine (1) has a rolling bearing (4) for receiving axial forces. A welded joint (10) i.e. laser welded joint, is provided between axial and radial sides and an outer ring (6) of the rolling bearing and a housing (2) and / or between an inner ring (5) of the rolling bearing and a shaft (3). The housing comprises a collet. Another welded joint is arranged in a boundary region along an axial external periphery of the outer ring and an inner circumference of the housing. The inner ring and the outer ring are fixed at the collet. An independent claim is also included for a method for manufacturing an electric machine.

Description

Technical field [0001] The invention relates to a motor. Background technique [0002] In the prior art, conventional rolling bearings are used in motors for transmitting permanent excitation of axial force, and the rolling bearings are fixed on the shaft and / or in the housing in a form fit or force fit in the axial direction. Here, the conventional connection type either requires troublesome time extension or interruption of the process steps of the production process, or additional components that increase the number of process steps and increase the manufacturing cost. Summary of the invention [0003] The electric machine according to the invention has the relative advantage of forming a welded connection between the rolling bearing and the housing and / or forming a welded connection between the rolling bearing and the shaft. As a result, a cost-effective connection between the outer or inner rolling bearing ring and the housing or shaft of the electric machine can be formed i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/173
CPCH02K5/1732F16C35/067F16C2226/36
Inventor M.彼得斯
Owner ROBERT BOSCH GMBH