Method for checking assembled state of spinning rotor of open-end spinning device and open-end spinning device

Abstract

The invention relates to a method for checking the assembled state of a spinning rotor (2). The first distance (s0) between a shaft shoulder (5) of a rotor shaft (3) and a front axial stop bearing (10) is defined for a normal axial operating position (11) of the spinning rotor (2). Before the spinning rotor (2) is started, the spinning rotor (2) is moved axially along the direction of the forwardaxial stop bearing (10) until the spinning rotor (2) reaches an axial stop, and a first stroke of the spinning rotor (2) between the normal axial operating position (11) and the axial stop is detected. The detected first stroke (s) is compared with the first distance (s0), and when s = s0, the spinning rotor (2) is activated, and when s < s0, the activation of the spinning rotor (2) is prevented.The corresponding open-end spinning device (1) has a control device (15) which is designed to carry out the method.

Description

technical field [0001] The invention relates to a method for checking the assembled state of a spinning rotor comprising a rotor shaft with a shoulder and a rotor disc detachably connected to the rotor shaft. The spinning rotor is mounted in a magnetic bearing arrangement in an open-end spinning device whose front side can be closed with a cover. The magnetic bearing arrangement has means for adjusting the axial position of the rotor shaft, means for detecting the axial position and at least one front axial stop bearing for a shoulder of the rotor shaft. Background technique [0002] The spinning rotors of modern open-end spinning machines are often supported in magnetic bearing structures at high speeds exceeding 100,000 l / min. Compared to purely mechanical bearing constructions, the advantage of such magnetic bearing constructions at very high rotational speeds is that they have extremely low frictional losses and are practically free from wear. They can be designed both...

AI Technical Summary

Problems solved by technology

Such incorrect assembly can impair the running performance and spinning results of the spinning rotor

In addition, in terms of technical safety, the correct assembly state of the spinning rotor is also required, that is, the correct axial position of the rotor disc relative to the rotor shaft, because the rotor disc may be disconnected from the rotor shaft during operation.

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