SU452802A1 - Instrument for measuring the friction moment of the minute tribe on the central axis - Google Patents

Description

(54) DEVICE FOR MEASURING THE FRICTION MOMENT OF THE MIN. TRIBE

The invention relates to app (H) am for measuring the frictional moment of the minute tribe on the central axis and can be applied in the chapels of industry. A device for measuring the frictional moment is known, which contains a table with a central axis fixed to it with a central wheel and a tribe, a synchronous motor that rotates a table through a reducer, a probe, one end of which is connected to a minute tribe and the other is fixed on a sensitive element made of elastic metal and working on twisting, and an electrical transducer deformation of the sensitive element. The presence of a gap in the attachment points of the sensing element to the collets provides measurement accuracy and stability of the instrument readings, and also makes it difficult to correct the zero of the instrument readings. The aim of the invention is to increase measurement accuracy, ease of adjustment of zero readings and instrument sensitivity. This goal is achieved by the fact that in the proposed device the sensing element is made in one piece with the base and lugs at its ends, which have grooves perpendicular and parallel to the shape of the sensing element and are intended, respectively, to adjust the sensitivity and zero readings of the device. The drawing shows the proposed device. The gate contains a table 1, rotated through a gearbox 2 by a synchronous electric motor 3.1. A central axis 4 is fixed on the table. The central wheel 5 and the minute tribe 6 are engaged with the measuring probe 7 fixed on the elastic sensitive element B, which is integral with the lugs. 9, 10 at its ends and the basis of it 11. At the junction of the bosses with the base, there are grooves forming the straps 12, 13.

Screw 14 is used to adjust the stiffness of the sensing element, i When the impact on the boss 10 is adjusted, zero instrument readings. A strain transducer of the 15th element into an electrical signal is fastened on the element 8 of the szg. The measurement of the measured moment is carried out using an electromotive measuring instrument connected to the output of the converter 15 and calibrated in units of torque.

The device works as follows. When the table 1 rotates: the central axis 4 rotates with the central wheel 5, and the minute tribe 6 is held out of the AlertJ yI probe 7. The elastic element 8 is twisted at an angle; proportional friction; Nomu moment. The moment is measured by an electrical measuring instrument connected to the output of the converter, calibrated in units of torque,

Subject invention

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A device for measuring the friction MOMeHv and the minute tribe on the central axis, containing a table with a central axis fixed to it with a central wheel and a tribe, a synchronous electric motor, rotation through a gearbox, face, probe, one end of which is rigidly fixed to the minute a sensitive element made of an elastic metal and working on twisting; an electrical transducer of the deformation of the sensitive element, which is wrong because, in order to increase the accuracy of measurement, Adjusting the readings and sensitivity of the device, the sensing element is rigidly connected to the base and lugs, at the base of one of which is a groove perpendicular to the axis of the sensitive element, and in the middle of the other;

. parallel to the axis of the sensitive element.

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