Pivoting Axle Structure for Uneven-Ground Vehicle Stability

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Solution Overview

Problem

Existing vehicles experience jolting vibrations and poor driving stability when traversing uneven ground due to fixed axles that cannot adapt to ground fluctuations.

Innovation Solution

An axle structure with a pivot shaft and rotatable axle that allows vertical rotation relative to the pedestal, combined with limiting structures to control the rotation angle, enhancing stability and obstacle traversal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the axle is fixed to the pedestal, then the structure is simple and stable, but the vehicle experiences jolting vibrations and poor driving stability when traversing uneven ground

Engineering Contradiction:
Improvedriving stabilityVSAvoidadaptability to ground irregularities
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The axle is designed to rotate relative to the pedestal through a pivot shaft connection, transforming the fixed static structure into a dynamic one. This allows the axle to adapt its angle when traversing uneven ground, reducing jolting vibrations and improving driving stability while maintaining structural simplicity

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the axle is allowed to rotate freely to adapt to ground irregularities, then driving stability improves, but the rotation angle needs to be controlled to prevent chassis collision with obstacles

Engineering Contradiction:
Improvedriving stabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Limiting structures are designed into the pivot shaft assembly to pre-establish rotational boundaries before obstacles can cause damage. These structures proactively prevent excessive rotation that would lead to chassis collision, while still allowing sufficient rotation range to adapt to ground irregularities and maintain driving stability

Inventive Principle:
Principle #9Preliminary anti-action

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

Improves driving stability and obstacle traversal by allowing the axle to adapt to ground irregularities, reducing vibrations and preventing chassis collision with obstacles.

Implementation Method 1

the middle of the axle is rotatably connected to the pivot shaft, so that two ends of the axle can rotate vertically relative to the pedestal

Methodology Applied
Scientific EffectRotation:

Data Source

PatentUS12403736B2Axle structure and vehicle
Publication Date: 2025.09.02 SHENZHEN MAMMOTION INNOVATION CO LTD
  • US12403736B2 patent drawing
  • US12403736B2 patent drawing
  • US12403736B2 patent drawing

AI summary

The present application relates to an axle structure and a vehicle. The vehicle includes a chassis, and the axle structure is arranged on the chassis. The axle structure includes a pedestal, a pivot shaft, an axle and limiting structures. The pivot shaft is fixed to the pedestal. The middle of the axle is rotatably connected to the pivot shaft, so that two ends of the axle can rotate vertically relative to the pedestal. In the axle structure provided in the present disclosure, the pivot shaft is provided on the pedestal, and the axle is rotatably connected to the pivot shaft.