SU800725A1 - Apparatus for measuring torque of moving elongated textile material - Google Patents

Description

one

The invention relates to the textile industry, in particular to devices for measuring the torque that occurs in a belt or rove moving through a fixed spiral reel.

A device for measuring the torque of a moving long textile material is known, comprising a rigidly fixed rolling bearing, a platform fixed on the inner ring of the bearing, and a helical reel mounted on the platform coaxially to the internal opening of the bearing, while the torque sensor contacts the platform. The torque sensor is made in the form of an elastic cantilever beam with strain-resistances 1 glued to it.

A disadvantage of the known device is the impossibility of measuring small magnitudes of moments, since its own friction torque in a bearing often exceeds their magnitudes. In addition, a significant effect on the accuracy of measuring small magnitudes of moments is exerted by the fact that the moment of friction of rest is greater than the moment of friction of rotation. As a result, the torque varies in steps, thereby causing the sensor to oscillate and, therefore, distort the recorded signal.

The purpose of the invention is to make it possible to measure small magnitudes of moments that occur in a belt or rove when dragging it through a fixed spiral reel.

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This goal is achieved by the fact that the device is equipped with rollers, located around the outer ring, rolling bearing bearing center and in contact with it, and driving them to rotate,

5 which eliminates the effect of the own friction moment in the bearing on the accuracy of measuring small values of moments, which occurs in a long textile material. When the rollers rotate, they have an electric motor and a flat-time transmission covering the rollers.

FIG. 1 schematically shows the proposed device; in fig. 2 -

5 the same, top view.

The device contains a platform 1, mounted on the inner ring of the bearing 2, a spiral reel 3, mounted on the platform 1 coaxially to the inner hole of the bearing 2, for example

Claims (2)

Claim 1. A device for measuring the torque of a moving long textile material, comprising a platform mounted on an inner ring of a rolling bearing with a spiral reel mounted on it, guides and a torque sensor interacting with the platform, characterized in that, in order to enable measurement of small values of moments, it is equipped with rollers located around the outer ring of the rolling bearing and in contact with it, and a drive for their rotation. 2. The device according to claim 1, wherein the drive for rotating the rollers has an electric motor and a flat-belt transmission covering the rollers.