Camera Crane Mobile Base Traction and Stability
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Solution Overview
Problem
Existing camera crane motion bases lack sufficient traction and stability, especially when operating on soft or uneven surfaces such as grass, sand, or slippery conditions like snow, which can hinder smooth camera movement and payload handling.
Innovation Solution
A new mobile base design featuring a chassis with multiple drive motor assemblies, gear reductions, and spring suspension systems, along with optional additional drive motor assemblies and outriggers, providing enhanced traction, stability, and adjustable steering modes to manage various terrain conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple drive motor assemblies are added to the mobile base, then traction and stability are improved, but device complexity increases
Solution Approach 1:
The mobile base is divided into multiple independent drive motor assemblies (front left, front right, rear left, rear right, and optional middle left/right assemblies). Each assembly operates independently with its own motor, gear reduction, and wheel configuration, allowing the system to achieve superior traction and stability through distributed propulsion while maintaining modular complexity management.
Solution Approach 2:
Multiple drive motor assemblies are combined into a single integrated mobile base system, with all assemblies working together to provide enhanced traction and stability. The spring suspension assemblies connect the various drive units to the chassis, merging them into a cohesive system that distributes load and improves overall reliability.
2Stability of the object's composition
If spring suspension assemblies are added to support the axle, then stability on uneven ground is improved, but device complexity increases
Solution Approach 1:
The spring suspension assemblies provide dynamic adaptation to uneven terrain by allowing the axle and wheels to move independently relative to the chassis. The spring elements absorb shocks and maintain wheel contact with the ground on varying surfaces, providing continuous stability without requiring a completely rigid and complex suspension system.
3Weight of moving object
If the mobile base is designed to carry heavy payloads, then payload handling capability is improved, but traction requirements increase
Solution Approach 1:
The propulsion force is segmented across multiple independent drive motor assemblies distributed at different locations on the chassis. This distribution of driving force across front, rear, and optional middle assemblies provides the necessary traction to move heavy payloads while reducing the burden on any single motor assembly.
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 design significantly improves traction and stability, enabling the mobile base to handle heavy payloads and navigate challenging surfaces with greater ease, reducing the need for manual labor and enhancing camera positioning flexibility.
Implementation Method 1
a spring suspension assembly attached to the chassis and supporting the axle
Implementation Method 2
an electric motor linked to an axle via a gear reduction
Data Source
AI summary
A mobile base for a camera crane includes a front left drive motor assembly, a front right drive motor assembly, a rear left drive motor assembly, and a rear right drive motor assembly, attached to a chassis. Each drive motor assembly may include an electric motor linked to an axle via a gear reduction and at least one wheel on the axle. A middle left drive motor assembly and a middle right drive motor assembly may each also include an electric motor linked to an axle via a gear reduction, at least one wheel on the axle, and a spring suspension assembly attached to the chassis and supporting the axle. An electrical power supply on the chassis may be linked to each of the electric motors.