KUNWEI / KWR61N30 / 로봇 관절용 61mm 30Nm RS485 정적 토크 센서


KWR61N30 torque sensor is a high-precision product that can output both analog and digital signals directly. This product can customize and adapt high-precision signal acquisition modules according to different signal output requirements (such as RS485, CAN signal output). The product has an outer diameter of Φ 61mm and a height of 10mm. At a rated range of 30Nm, its repeatability, nonlinearity, and hysteresis performance can be controlled within the range of 0.5% F.S. When subjected to lateral torsional loads, the maximum rated bending moment of the sensor is 20 Nm, the torsional stiffness is maintained within 57 kNm/Rad, and the maximum torsional angle does not exceed 0.04 °. When the sensor is subjected to lateral loads, the maximum load rating is 4.2 kN; in the direction of the sensor bearing axis, the load limit rating is 2.5 kN. If the lateral ultimate bending moment, lateral ultimate load, or axial ultimate load exceeds these ratings, the sensor structure will face the risk of damage or instability. The applicable working temperature range of this product is between -10 ℃ and 80 ℃. Within this temperature range, the output of the sensor can remain stable and not be affected by temperature fluctuations. Beyond the temperature range, stability may be affected and the output signal may drift or fluctuate. This product has been verified through multiple practical tests, and the theoretical data is highly consistent with the actual data, demonstrating superior performance.


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KWR61N30  Static 61mm 30Nm RS485 Torque Sensor for Robot Joint

Description

In the design process of KWR61N30 torque sensor, in order to further study the torque sensor, we first conducted mechanical analysis on the sensor to accurately determine the adhesive position of the strain gauge; Next, analyze the deformation of the strain gauges in detail; Subsequently, finite element analysis software was used to optimize the material selection and body structure of the torque sensor. Finally, the sensor is statically calibrated using a calibration device to obtain key performance indicators such as sensitivity, linearity, and hysteresis. The research results indicate that material selection has a significant impact on the performance of torque sensors. The use of high-strength alloy steel materials can effectively improve the accuracy and reliability of sensors.

More Details

High strength alloy steel materials not only have high elastic modulus, but also excellent fatigue resistance, which can effectively cope with long-term working stress and alternating loads. In addition, the material has a stable temperature coefficient of resistance and a low coefficient of thermal expansion, significantly reducing the interference of temperature changes on measurement results. High strength alloy steel materials usually have both high elastic modulus and low creep characteristics, which can maintain small deformations even under continuous stress, effectively reducing measurement errors and greatly improving the accuracy and reliability of sensors. Torque sensors need to maintain stable performance during long-term operation. High strength materials, with their excellent fatigue resistance and corrosion resistance, can resist the influence of environmental factors such as temperature changes, humidity, chemical corrosion, etc. In practical applications, torque sensors may encounter instantaneous overload or impact loads. High strength materials can withstand higher stress peaks, avoiding permanent deformation or damage caused by overload, thereby extending the service life of sensors. In special application scenarios such as high temperature, high pressure, strong vibration, etc., torque sensors need to have stronger environmental adaptability. High strength materials usually have better thermal and mechanical stability, which can maintain stable performance under harsh working conditions and meet the needs of complex applications.

Model of KWR61N30