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TürkçeHow to correctly select the coupling of the torque sensor
When it comes to torque sensors, there are still many people who are unfamiliar with them nowadays, because the field of its application is relatively professional, and if it is not related to the staff, it is generally not in contact with it. As a device for detecting the perception of torsional torque on various rotating or non-rotating mechanical parts, it also plays a relatively important role in many cases. Therefore, if it is a person involved, there is still more or less need to know some related information.
For example, how to correctly select the coupling of the torque sensor is worth discussing together:
A torque sensor is a high precision sensor capable of measuring with very small uncertainties. However, in order to be able to obtain highly accurate measurements, it is very important to reduce the parasitic loads affecting the sensor. It is often caused by improper installation or assembly of the drive train. Radial deflection of the shaft end mounted on the measuring flange will generate radial force and bending moment, similarly, radial angular deflection will generate axial force and bending moment on the sensor.
In a real application, all offsets and parasitic loads occur simultaneously. Precise alignment of the drive train is only part of the solution, as inherent misalignment tolerances cannot be completely eliminated. Therefore, it is necessary to install elastic compensating parts with high torsional hardness, especially at high speeds, which can almost completely compensate the residual deviation. The use of compensating components can improve the accuracy of the sensor, and can protect the bearings of the drive train with higher wear resistance.
The coupling consists of two elements as compensating components, which have the function of a cardan shaft. It can compensate angular, radial and parallel errors. The compact form of the compensating part is the full coupling, where two elements (semi-coupling) with the function of cardan shafts are mounted next to each other. Due to the very small gap between them, the deviation of the compensation is also very small, and a larger compensation requires a larger gap. Given the combination of torque sensor compensating components that need to be mounted on the drive train, numerous coupling and mounting component variants have been created.
