Drone Motor Measuring Device with Separate Thrust and Torque Sensing
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Solution Overview
Problem
Existing torque testing equipment for large drone motors is inaccurate due to top-heaviness and imbalance, leading to significant measurement errors.
Innovation Solution
A testing device with a transmission mechanism and dual sensors to measure both pulling force and torque, featuring a transmission shaft connected to a support seat and sensors that operate independently to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional torque testing equipment is used for large drone motors, then the test shaft becomes top-heavy and unbalanced, but measurement accuracy deteriorates with large errors
Solution Approach 1:
The patent divides the measurement system into two independent parts: a horizontal measurement system for torque using a torque sensor, and a vertical measurement system for pulling force using a pulling force sensor. This segmentation separates the measurement functions that were previously combined in an unstable top-heavy test shaft, allowing each measurement to be taken independently without compromising balance or accuracy.
Solution Approach 2:
The patent introduces a transmission mechanism as an intermediary between the motor and the measurement sensors. This transmission mechanism includes a transmission shaft connected to the motor output, which transfers rotational motion to the torque sensor, and a transmission link connected to the propeller, which transfers axial force to the pulling force sensor. This intermediary structure enables accurate measurement without requiring the test shaft to directly support both measurement functions.
2Adaptability or versatility
If dual sensors are used to measure both pulling force and torque, then measurement capability is improved, but device complexity increases
Solution Approach 1:
The transmission mechanism serves multiple functions simultaneously: it transmits rotational motion from the motor to the torque sensor, transmits axial force from the propeller to the pulling force sensor, and provides structural support for both sensors. This multi-functionality allows the system to measure both torque and pulling force without requiring separate independent measurement systems, thereby reducing overall complexity.
Solution Approach 2:
The patent merges the torque measurement system and the pulling force measurement system into a single integrated testing device. The transmission mechanism combines the transmission shaft for torque measurement and the transmission link for pulling force measurement, allowing both measurement functions to operate within one unified structure rather than as separate devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device accurately measures pulling force and torque of large drone motors without interference between sensors, improving measurement precision.
Implementation Method 1
the transmission mechanism is configured to move along an axial direction of the transmission shaft and abut against the first sensor, so that the first sensor measures the pulling force or thrust of the component to be tested
Implementation Method 2
the transmission shaft is configured to drive the second sensor to rotate so that the second sensor measures the torque of the component to be tested
Data Source
Figure 1~2
Figure 3~4
AI summary
A testing device to test a component to be tested. The component to be tested comprises a motor and a propeller, and the propeller is connected to an output end of the motor. The testing device comprising a bottom plate; a transmission mechanism comprising a transmission shaft and a support seat, and the transmission shaft is used to connect the motor and the support seat, and the support seat is used to support the transmission shaft, and the support seat is slidably connected to the bottom plate; a first sensor arranged on the bottom plate, and the transmission mechanism is configured to move along an axial direction of the transmission shaft and abut against the first sensor, so that the first sensor measures the pulling force or thrust of the component to be tested; a second sensor, an end of the second sensor is coaxially connected to the transmission shaft, and an other end of the second sensor is connected to the support seat, and the transmission shaft is configured to drive the second sensor to rotate, so that the second sensor measures the torque of the component to be tested.