Rotary High Precision Moment Scale

Abstract

The invention discloses a rotary high-precision moment balance, which includes a test frame device, a rotation device, a torque measuring device and a test seat device; wherein: the test frame device is fixed on the top of the rotating device, and the rotating device is fixed on the top of the torque measuring device. The measuring device is fixed on the test base device, and the test base device includes a test frame protection device, a paddle positioning protection device and a test base device; the test frame protection device and the paddle positioning protection device are all fixed on the test base device, and the test frame protection device The device is located under the test frame device, and the torque measurement device includes the upper sensor backing plate, the sensor, the feet, the lower sensor backing plate, the test board, and the overturn frame; the overturn frame is fixed on the test base device, and the upper sensor backing plate is fixed on the top of the sensor for force end, and the top of the lower backing plate of the sensor is fixed on the supporting end of the bottom of the sensor. The present invention has the characteristics of simple operation, high test accuracy and good test repeatability.

Description

technical field [0001] The invention relates to the technical field of object static balance torque measurement, in particular to a rotary high-precision torque balance. Background technique [0002] Propeller-type power units have been widely used in general aviation and regional transport aviation due to their low-speed economy. It rotates at a high speed under the drive of the engine, which produces a pulling force to pull the aircraft to fly, making the propeller one of the important components of the aircraft, which also promotes the propeller to have a good balance. However, in the actual production of the propeller, the geometric shapes of each blade are not equal, which will cause the blade mass and angle to be unequal, so that the center of mass of the propeller is not on its rotation axis, resulting in static imbalance. Or during operation, due to the influence of the airflow, it collides with a hard object, causing the blade to bend and deform, and the propeller ...

AI Technical Summary

Problems solved by technology

At present, a large number of balance torque balance measurement methods are still used at home and abroad. The value of the blade is measured by weights. Using the principle of balance balance, the measurement of the blade torque is realized by hanging the standard weight and moving the position of the weight. This method has test accuracy. Low, low test efficiency, large influence of personnel operation factors, and difficult to guarantee test repeatability; with the development of test technology, the sensor torque balance measurement method has appeared, using the force sensor to directly measure the torque data of the blade, but the current blade torque The sensor test method still has low test accuracy, large randomness and poor repeatability when using a single measurement

[0005] Therefore, in the current field of blade torque testing and trimming, there are problems such as low test accuracy, poor repeatability, low test efficiency, and large influence of personnel operations on the blade torque test. It is difficult to achieve high-efficiency and high-precision measurement of blade torque and tuning

Images