UAV Gimbal Integral Connecting Arm Reduces Vibration
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Solution Overview
Problem
Existing gimbals for unmanned aerial vehicles (UAVs) are large in size and have poor accuracy in controlling the loads they carry, such as cameras, leading to instability and vibration issues.
Innovation Solution
A compact gimbal design with a three-axis omnidirectional configuration, incorporating disc-type motors and integrated connecting arms, which reduces weight and volume while enhancing strength and fatigue resistance, allowing precise control of camera orientation and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional gimbal design is used, then the structure is stable, but the size is large and control accuracy is poor
Solution Approach 1:
The connecting arm is integrally formed with the rotating portion and fixing portion, merging multiple components into a single piece. This integration eliminates the need for separate connecting arms while maintaining structural stability, thereby reducing overall gimbal volume and improving control accuracy without sacrificing stability
Solution Approach 2:
The patent changes the structural parameters by using integral forming instead of assembled components. This parameter change in manufacturing method results in a more compact structure with fewer joints and connection points, reducing the gimbal's overall size while improving control precision through reduced mechanical play
2Reliability
If a traditional gimbal design with separate components is used, then assembly is easier, but the structure has poor fatigue resistance and shock resistance
Solution Approach 1:
Multiple components (connecting arm, rotating portion, fixing portion) are merged into a single integrally formed piece. This eliminates connection joints that would be weak points under fatigue and shock loads, significantly improving reliability. The integral structure ensures uniform stress distribution throughout the component
Solution Approach 2:
The patent employs composite material construction in the integral structure, combining materials with different properties to achieve both high strength for fatigue/shock resistance and manufacturability. The composite approach allows optimization of both reliability and ease of manufacture through material selection rather than complex assembly
Data Source
AI summary
The present invention relates to the technical field of aircrafts, and provides a gimbal, a photographing assembly and an unmanned aerial vehicle (UAV) that have the gimbal. The gimbal includes: a first rotating member and a second rotating member. The first rotating member includes a first drive apparatus, the first drive apparatus including a first rotating portion, and the second rotating member includes a second drive apparatus and a first connecting arm, the second drive apparatus including a second fixing portion and a second rotating portion that may rotate relative to the second fixing portion, the first connecting arm being fixedly connected between the first rotating portion and the second fixing portion, and the first connecting arm is integrally formed with the first rotating portion and the second fixing portion.