SU1296865A1 - Device for measuring torque - Google Patents

Abstract

The invention relates to a measurement technique and allows for improved measurement accuracy. In the housing 1 of the concentrically bearing supports 3, heating elements 6 and 7 are installed, connected via a temperature controller to the temperature sensor 8. The regulator provides a constant temperature in the zone of magneto-elastic transducers, controlled by the thermal power emitted by the heating elements 6 and 7. The signal from the unit 4 of magnetoelastic transducers at the time of the activation of the sensor 10 of the label gives information about the magnitude of the torque. 3 il.

Description

The invention relates to a measurement technique and can be used to measure the torque transmitted by the rotating shafts of various objects.

The purpose of the invention is to improve accuracy.

FIG. 1 shows the structure of the device; in fig. 2 is a section A-A in FIG. one; Fig. 3 is a diagram of the connection of the elements of thermostating.

The device for measuring the torque includes a housing 1 (see FIG. 1), a shaft 2 of elastic ferromagnetic material mounted in the housing 1 on the bearings 3, a unit 4 of magnetoelastic transformers mounted in the housing 1 concentric to the shaft 2 providing a gap between the inner surface 5 of the block 4 and the shaft 2, the heating elements 6 and 7, located in the housing 1 concentric with the bearing supports 3, the temperature sensor 3 mounted on the inner surface 5 of the block 4 of the magnetoelastic transducers, mark 9, Enna on the shaft 2, the mark sensor 10 mounted on the housing 1 in D; hum temperature torus 11, which sub-entry keys 8, a temperature sensor, and the exit - the heating elements 6 and 7 (Figure 3).

The block 4 of magnetoelastic converters includes a sleeve 12, in the slots of which magnetoelastic converters 13 are placed, made in the form of U-shaped cores with windings (Fig. 2),

The device for measuring the torque moment works as follows.

When the device is put into operation, a signal from temperature sensor 8, proportional to the temperature in the zone of placement of the magnetoelastic converters 13, enters the temperature controller 11, which controls the thermal power emitted by the heating elements 6 and 7, so that the temperature in the zone of magnetoelastic converters 13 was maintained constant and independent of the change in ambient temperature and the energy release (due to friction) in the bearings 3.

In this case, the magnitude of the torque is judged by the signal from block 4 of magnetoelastic transducers at the instant of response of sensor 10 of the mark.

Claims (1)

Invention Formula A torque measuring device comprising a shaft of resilient ferromagnetic material mounted in a housing on bearing supports, and a unit of magnetoelastic transducers mounted in the housing are concentric with the shaft providing a gap between the inner surface of the block and the shaft. in order to increase accuracy, it introduces heater-ittie elements located in the housing concentric to the bearing supports temperature controller and a temperature sensor mounted on the inner surface Lok magnetoelastic transducers and connected via temperature controller to a heating element. Compiled by A. Amakhanov Editor M. Nedoluzhenko Tehred I.Popovich Order 767/43 Circulation 777 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, L FI.2 Proofreader S. Cherni