Four-Wheel Off-Road Vehicle Swivel Frame Suspension
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Solution Overview
Problem
Four-wheel off-road vehicles face stability issues in rough terrain, as existing designs fail to effectively maintain alignment and suspension flexibility during turns and encounters with bumps.
Innovation Solution
A four-wheel off-road vehicle design featuring a front floor swivel that rotates about a longitudinal axis for stability in turns, with springs maintaining front-to-back alignment and a front suspension system that allows rotation about an axis parallel to the front wheel axle for proper flexing, along with additional support arms and large off-road wheels with dual disk brakes for enhanced terrain handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the front frame is rigidly connected to the rear frame, then structural stability is improved, but suspension flexibility and terrain adaptability deteriorate
Solution Approach 1:
The front frame is connected to the rear frame through a swivel mechanism that allows dynamic rotation about a longitudinal axis. This enables the front frame to rotate relative to the rear frame, providing adaptability to rough terrain while maintaining structural stability through the swivel connection.
Solution Approach 2:
The vehicle frame is divided into separate front and rear sections that can move independently relative to each other. The front frame assembly including the swivel mechanism is separated from the rear frame, allowing independent movement and rotation to adapt to terrain variations.
2Stability of the object's composition
If the front suspension is constrained to maintain alignment, then stability is improved, but suspension flexibility and bump absorption deteriorate
Solution Approach 1:
The front suspension system incorporates a swivel mechanism that allows the front frame to rotate dynamically in response to bumps and terrain variations. This dynamic movement enables the suspension to absorb impacts while the springs maintain alignment stability during normal operation.
Solution Approach 2:
The suspension system uses springs that can change their mechanical state to maintain front-to-back alignment. The springs provide restoring force to maintain alignment while allowing controlled movement and rotation to absorb bumps and terrain irregularities.
3Adaptability or versatility
If additional support arms are added to enhance terrain handling, then terrain adaptability is improved, but device complexity increases
Solution Approach 1:
The suspension system is divided into modular components including the front frame assembly, rear frame, swivel mechanism, and support arms. This segmentation allows each component to perform its specific function while maintaining overall system adaptability to terrain.
Solution Approach 2:
The swivel mechanism serves multiple functions: it allows the front frame to rotate for terrain adaptation, provides suspension movement capability, and maintains structural connection between front and rear frames. This multi-functionality reduces the need for additional separate components.
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 enhances stability and suspension flexibility, allowing the vehicle to maintain alignment and absorb bumps effectively during turns and terrain encounters, ensuring improved handling and safety on rugged terrain.
Implementation Method 1
a front floor swivel which allows rotation about a longitudinal axis corresponding to the floor for stability in turns
Implementation Method 2
springs maintain the front to back alignment until a turn is initiated
Implementation Method 3
a front swivel which allows rotation about an axis parallel to the front wheel axle for bumps and to allow the front suspension to flex properly
Implementation Method 4
allow the front suspension to flex properly
Data Source
AI summary
An off road vehicle comprises a front frame joined to a rear frame by a swivel rotates about a longitudinal axis. Springs are mounted to a horizontal planar structure and to the rear frame. The springs maintain the front frame to rear frame alignment but allows rotation between the front frame and the rear frame. A steering column extends upwardly and forwardly from a front axle having two wheels mounted laterally therefrom. The is connected to the two front wheels to turn in a desired direction. Front springs connect the axle to the steering column. A pair of shock absorbers connect the axle proximate to the wheels and the steering column. The pair of front springs and the pair of shock absorbers, in combination, maintain the front frame alignment to the axle but allow rotation between the front frame and the axle.