Aircraft Arm Motor Mounting Structure for Lower Weight
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Solution Overview
Problem
Conventional aircraft motor installation methods require multiple reinforcement brackets, leading to complex structural components and increased weight.
Innovation Solution
The motor is directly installed on the aircraft arm, utilizing a fixing part that encircles the rotor motor and connects it to the arm opening, with a metal mounting piece and bolts for secure fixation, and a centrifugal fan for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple reinforcement brackets are installed on the motor to ensure firm fixation, then the motor fixation reliability is improved, but the device complexity and weight increase
Solution Approach 1:
The patent merges the motor mounting function directly into the aircraft arm structure by designing the arm body with an integrated motor mounting cavity and fixation features. The arm body itself serves as both the structural support and the mounting platform, eliminating the need for separate reinforcement brackets and mounting plates. This integration reduces the number of components while maintaining secure motor fixation.
2Reliability
If multiple reinforcement brackets are installed on the motor to ensure firm fixation, then the motor fixation reliability is improved, but the weight increases
Solution Approach 1:
The motor mounting functionality is merged into the arm body structure, which eliminates the need for additional reinforcement brackets and mounting plates. The arm body is designed with integrated fixation features including mounting holes and structural reinforcements that are part of the original arm structure, not add-on components. This significantly reduces the total weight while maintaining secure motor fixation.
3Strength
If multiple reinforcement brackets are installed on the motor to ensure firm fixation, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The structural strength features are merged into the arm body design. The arm body includes integrated mounting cavities, fixation holes, and structural reinforcements that are built-in rather than added separately. The motor is directly mounted to the arm body through these integrated features, eliminating the need for separate reinforcement brackets while maintaining equivalent or superior fixation strength.
4Reliability
If a motor mounting plate and multiple reinforcement brackets are used for motor installation, then the motor fixation reliability is improved, but the installation structure becomes complex and weight increases
Solution Approach 1:
The motor mounting function is merged into the arm body structure. The arm body is designed with an integrated motor mounting cavity that directly receives and secures the motor. Fixation is achieved through built-in mounting holes and structural features of the arm body itself, eliminating the need for separate mounting plates and reinforcement brackets. This integration reduces the stationary structure weight while maintaining reliable motor fixation.
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
This simplifies the installation structure, reduces weight, enhances structural stiffness, and improves vibration damping, while maintaining secure motor fixation.
Implementation Method 1
a centrifugal fan is installed on the portion of the rotor motor extending outside the arm body, and the centrifugal fan is used to dissipate heat from the rotor motor
Data Source
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AI summary
The disclosure relates to the field of aircraft technology, and discloses an aircraft arm. The aircraft arm of the disclosure includes a rotor motor and a propeller, with the rotor motor connected to the propeller. The arm body comprises an arm cavity and an arm opening, where the arm cavity is used to accommodate the rotor motor, and the arm opening is connected to the arm cavity. The rotor motor includes a fixing part that encircles the rotor motor. A portion of the rotor motor is disposed within the arm cavity and connected to the edge of the arm opening via the fixing part, while another portion extends outside the aircraft arm and connects to the propeller. The present disclosure directly installs the motor on the aircraft arm, simplifying the installation structure and significantly reducing weight.