Construction Vehicle Hood Mounting Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Construction vehicle hoods experience high stresses and cracking due to twisting forces during operations like stock piling, leading to loosening or slipping of mounting bolts and reduced lifespan, as the torsional stiffness of the hood structure varies along the chassis.
Innovation Solution
A hood structure for construction vehicles featuring a first frame member coupled to the chassis at the rear end and a second frame member proximal to the operator cabin, connected via a mounting assembly with a plate member and isolation mounts that absorb twisting forces, allowing for adjustable coupling and energy dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the hood structure is rigidly coupled to the chassis to provide structural support, then the structural integrity of the hood is improved, but the hood structure is subjected to high twisting forces and stresses during stock piling operations
Solution Approach 1:
The patent introduces a mounting assembly as an intermediary component between the hood structure and chassis. This assembly includes mounting plates, fasteners, and isolation elements (such as rubber or elastomeric components) that serve as a mediator to decouple the hood from direct rigid attachment to the chassis, thereby reducing transmission of twisting forces while maintaining structural support
Solution Approach 2:
The patent changes the coupling parameters by transitioning from a rigid fixed connection to a flexible mounted connection. The mounting assembly allows for controlled movement and deformation through compliant elements, changing the mechanical properties of the connection from rigid to semi-flexible, which reduces stress transmission during twisting events
2Strength
If the hood structure is rigidly coupled to the chassis, then the structural support is improved, but the mounting bolts loosen or slip due to twisting forces
Solution Approach 1:
The mounting assembly acts as an intermediary that includes specialized fastening mechanisms with isolation elements between the hood structure and chassis. These intermediaries protect the mounting bolts from direct exposure to twisting forces that would cause loosening or slipping
Solution Approach 2:
The patent incorporates cushioning elements (such as rubber isolators or elastomeric materials) within the mounting assembly that are positioned in advance to absorb and dampen twisting forces before they can affect the mounting bolts, preventing bolt loosening or slipping during operational events
3Stability of the object's composition
If the hood structure is rigidly coupled to the chassis, then the structural stability is improved, but the lifespan of the hood structure is reduced due to high stresses
Solution Approach 1:
The patent changes the mechanical parameters of the connection by introducing flexible mounting elements that allow controlled deformation. This transforms the rigid connection into a compliant one that can accommodate operational stresses without causing fatigue damage, thereby extending the lifespan of the hood structure
Solution Approach 2:
The patent converts the harmful twisting forces into a beneficial effect by using isolation elements that absorb and dissipate the energy from these forces. The mounting assembly transforms the harmful stress transmission into a protective mechanism that reduces overall stress on the hood structure through controlled compliance
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 mounting assembly effectively isolates the hood structure from twisting forces, reducing stress and preventing cracking, thereby enhancing the lifespan and structural integrity of the hood.
Implementation Method 1
The mounting assembly includes a plate member connected to the second frame member. The mounting assembly also includes a first mounting device connecting the first end of the plate member to the chassis. The mounting assembly further includes a second mounting device connecting the second end of the plate member to the chassis.
Implementation Method 2
A hood structure for construction vehicles featuring a first frame member coupled to the chassis at the rear end and a second frame member proximal to the operator cabin, connected via a mounting assembly with a plate member and isolation mounts that absorb twisting forces, allowing for adjustable coupling and energy dissipation.
Data Source
AI summary
A construction vehicle includes a chassis having a front end and a rear end. The construction vehicle also includes an operator cabin supported by the chassis and a hood proximate to the rear end of the chassis. The construction vehicle further includes a hood structure for supporting the hood. The hood structure includes a first frame member coupled to the chassis proximate to the rear end and a second frame member disposed distal to the rear end and proximal to the operator cabin. The second frame member is coupled to the chassis by a mounting assembly. The mounting assembly includes a plate member connected to the second frame member. The mounting assembly also includes a first mounting device connecting a first end of the plate member to the chassis. The mounting assembly further includes a second mounting device connecting a second end of the plate member to the chassis.