Rotorcraft Blade Performance Test Bench

Abstract

The invention discloses a rotorcraft blade performance testing platform, which includes a platform body, a power system and a measurement and control system. The platform body includes a support seat, a support rod and a blade testing mechanism, and the blade testing mechanism includes an S-type tensile and compressive force measuring module. , force transmission ring, torque sensor, force transmission spindle, speed sensor and brushless motor, the inorganic brush is connected to the blade to be tested, one end of the force transmission spindle is fixed with a flange through a stop bolt, and the other end has a force transmission ring , the brushless motor is installed on the flange, the force transmission ring is connected with the force transmission main shaft through the rolling bearing, the force transmission ring is connected with the S-type tensile and compression force measurement module through the dowel rod, and the torque sensor is connected with the fisheye joint bearing and the double The head threaded pull rod is connected with the torque rocker arm, and the torque rocker arm is installed on the power transmission spindle by screws. The length of the support rod and the replaceability of the brushless motor in the present invention enable a wide range of measurable blades, and the S-type tension-compression force measuring module and torque sensor can be replaced to meet different test requirements and accuracy requirements.

Description

technical field [0001] The invention relates to a blade testing device, in particular to a rotorcraft blade performance testing platform. Background technique [0002] At present, rotorcraft have been widely used in aerial photography, plant protection, security and other fields, and the pulling force of the fixed-pitch blades used in them is gradually increasing, and the requirements for the comprehensive performance of the blades are also increasing. Therefore, it is particularly important to test and select the designed blade for tension, power, noise, etc. [0003] At present, the existing blade performance test bench has a six-component balance test bench for testing helicopter rotor blades. This test bench is large in size, low in precision of force measurement, and high in cost, and is not suitable for one-way blades of fixed-pitch rotorcraft. force measurement requirements, and does not have the measurement requirements of blade noise. For the test bench with blade...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing blade performance test bench has a six-component balance test bench for testing helicopter rotor blades. This test bench is large in size, low in precision of force measurement, and high in cost, and is not suitable for one-way blades of fixed-pitch rotorcraft. force measurement requirements, and does not have the measurement requirements of blade noise

For the test bench with blade unidirectional force measurement, the measured blade diameter range is small, it does not meet the test requirements of high power, large diameter, wind tunnel and other environments, and the integration is low, and it also does not have the function of blade noise

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