Track-Type Mobile Platform Suspension Shock Absorption

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Solution Overview

Problem

Existing track-type mobile chassis suspension systems are prone to instability and equipment damage when navigating obstacles, leading to potential equipment failure and accidents due to excessive impact loads on the front end of the suspension system.

Innovation Solution

A suspension system with damping and buffering properties, comprising a suspension assembly with a suspension lateral plate, approach plate, elastic elements, oscillating arm plate, and damping element, configured to distribute and absorb shock loads, ensuring stability and safety during obstacle navigation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If multiple supporting arms or torsion bars are configured slantways between approach wheel and departure wheel with separate elastic elements, then shock absorbing effect is realized, but the front end supporting arm is greatly deformed by outside impact causing chassis instability and equipment damage

Engineering Contradiction:
Improveshock absorbing effectVSAvoidchassis stability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The suspension system is divided into multiple independent supporting arms (first supporting arm with first elastic element, second supporting arm with second elastic element) that can deform independently. This segmentation allows each arm to absorb shock locally without transmitting excessive forces to the chassis, thereby maintaining overall stability while providing shock absorption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Elastic elements (springs) are pre-installed in the supporting arms to provide cushioning before impact occurs. These elastic elements deform elastically under impact loads, absorbing shock energy beforehand and preventing direct transmission of impact forces to the chassis, thus avoiding deformation of the front supporting arm and maintaining chassis stability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Adaptability or versatility

If the track-type mobile chassis moves through obstacles in high height, then obstacle crossing capability is improved, but the vehicle body strikes forward causing overload of impact load on the front end of suspension system

Engineering Contradiction:
Improveobstacle crossing capabilityVSAvoidimpact load on suspension system
Core Design Contradiction:
Adaptability or versatilityVSForce

Solution Approach 1:

The suspension system employs dynamic deformation of elastic elements in the supporting arms to adapt to varying impact loads during obstacle crossing. The elastic elements dynamically adjust their deformation level based on the height and force of obstacles, allowing the chassis to cross obstacles of different heights while distributing impact loads across multiple supporting arms rather than concentrating them on the front end.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Elastic elements serve as intermediaries between the impacting obstacles and the chassis. These elastic elements absorb and dissipate impact energy through elastic deformation, acting as a buffer that prevents direct transmission of high impact loads to the chassis and suspension system, thereby enabling safe obstacle crossing.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If supporting arm is directly configured without sufficient damping, then structural simplicity is maintained, but equipment damage occurs due to excessive impact load

Engineering Contradiction:
Improvesuspension structure complexityVSAvoidequipment damage from impact load
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The suspension system merges elastic elements (springs) and damping elements (dashpots) into a combined suspension assembly. This combination allows the system to benefit from both elastic deformation (energy storage) and viscous damping (energy dissipation) mechanisms, effectively reducing equipment damage from impact loads while maintaining relatively simple structural implementation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The suspension system changes the mechanical parameters of the supporting arms by incorporating elastic and damping elements, transforming the rigid supporting arms into compliant structures with controlled deformation characteristics. This parameter change enables the supporting arms to absorb and dissipate impact energy, preventing equipment damage while maintaining structural simplicity.

Inventive Principle:
Principle #35Parameter changes

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 system effectively stabilizes the mobile platform and protects mechanical components by absorbing shock loads, preventing equipment damage and ensuring reliable operation when encountering obstacles.

Implementation Method 1

a first elastic element and a damping element are configured between the approach plate and the suspension lateral plate and are arranged parallelly

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

a first elastic element and a damping element are configured between the approach plate and the suspension lateral plate and are arranged parallelly

Methodology Applied
Scientific EffectViscous damping: Viscous Damping

Data Source

PatentUS11427271B2Suspension system with damping and buffering property and track-type mobile platform
Publication Date: 2022.08.30 SHANDONG GUOXING SMARTECH CO LTD
  • US11427271B2 patent drawing
  • US11427271B2 patent drawing
  • US11427271B2 patent drawing

AI summary

The present disclosure provides a suspension system with damping and buffering properties, comprising a suspension assembly, a wheel train assembly and a track assembly, the suspension assembly comprises a suspension lateral plate, an approach plate, a first elastic element, a tensioning assembly, a second elastic element, an oscillating arm plate and a damping element; the wheel train assembly comprises a first approach wheel, a second approach wheel, a first load-bearing wheel, a second load-bearing wheel, a track supporting wheel and an actuation wheel. A high stability of a mobile platform moving through obstacles can be realized by assembling the approach plate, the first elastic plate and the damping element into a loading and shock absorbing module in the present disclosure.