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Method for creating a tight fit of a component to a shaft

A technology of press-fitting and components, applied in the direction of rigid brackets of bearing components, bearing components, couplings, etc., can solve the problems of installation and operation that require installation space, and achieve the effect of low price, flexible method, and good and precise operation characteristics

Active Publication Date: 2011-06-15
MAXON MOTOR AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This additional component entails additional component costs, requires installation space and additional installation operations

Method used

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  • Method for creating a tight fit of a component to a shaft
  • Method for creating a tight fit of a component to a shaft
  • Method for creating a tight fit of a component to a shaft

Examples

Experimental program
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Embodiment Construction

[0037] Figure 1a Detail of shaft 1 for the micromotor is shown. Such shafts generally have a diameter of less than 5mm. Shaft 1 may be the drive shaft of a rotor such as a micromotor. Here it is often necessary to position drive elements such as pinions, toothed belt pulleys or ball bearings at specific positions on the drive shaft 1 . To this end, the shaft 1 has an engagement surface 2 provided thereon. The engagement surface 2 extends over part of the circumferential surface 3 of the shaft 1 . In the region of the engagement surface 2 a projection 4 is formed on the circumferential surface 3 of the shaft 1 . The protrusion 4 is mountain-shaped and preferably has the shape of a cap. In the illustrated embodiment, two rows of projections 4 are formed on the shaft 1 . In each row, the protrusions 4 are arranged one after the other and distributed over the circumference of the shaft 1 , ie the protrusions 4 lie on a circular path extending on the circumferential surface 3...

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PUM

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Abstract

The present invention relates to a method of establishing a press fit of a component with a mounting hole on a shaft. It aims at providing a method that allows exact positioning of the component to be mounted on the shaft as well as a flexible way of use. To this end, the method is so conceived that an inner surface of the mounting hole of the component and / or a circumferential surface of the shaft is / are partially fused so that calotte-shaped projections protruding beyond the inner surface of the mounting hole and / or the circumferential surface of the shaft will form, that the component and / or the shaft is / are subsequently cooled, so that the calotte-shaped projections will solidify, and that the component is then slipped onto the shaft until the mounting hole is positioned in a fastening area of the shaft. In addition, the present invention also relates to components for establishing a press fit of a shaft-hub connection.

Description

technical field [0001] The invention relates to a method for producing a press fit of a component with a mounting hole on a shaft, in particular on a shaft for a micromotor. Furthermore, the invention also relates to a shaft-hub connection element provided with an engagement surface that establishes a force fit with a second shaft-hub connection element having a contact surface. Background technique [0002] In the field of drive technology, it is often necessary to precisely position drive elements such as pinions, toothed belt disks or ball bearings at specific positions on the drive shaft of the rotor. To date, a number of different methods have been used for this purpose. [0003] One known possibility is to tolerance the shaft and the bore of the component to be positioned in order to create a direct tight fit. In the case of motor shafts, this means that in some cases a long extrusion distance entails the risk that the shaft may bend, or that a particular shaft is of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/06
CPCB23K26/0081B23K26/0084F16D1/0858B23K26/354B23K26/355F16C35/063Y10T29/49863Y10T29/49668
Inventor 马丁·齐默尔曼阿诺德·泰梅尔
Owner MAXON MOTOR AG