Wide-Cabin Suspension Layout for Stable Lateral Restraint
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing work vehicles, such as tractors, face instability in restraining the cabin from moving leftward and rightward due to the limitations of lateral rods in suspension mechanisms, especially when the cabin has a large lateral width.
Innovation Solution
The implementation of left and right lateral rods disposed laterally outward of their respective suspension mechanisms, which extend and contract to stabilize the cabin's movement, combined with elastic bodies and rebound springs to manage contraction and extension, and strategically positioned to avoid interference with lift arms and travel devices, ensuring effective support and reduced shock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cabin has a relatively large lateral width to accommodate the operation section, then the operator's comfort and accessibility are improved, but the stability of restraining the cabin from moving leftward and rightward deteriorates
Solution Approach 1:
The lateral restraint system is segmented into separate left and right lateral rods that are disposed laterally outward of their respective suspension mechanisms. This segmentation allows each rod to independently restrain its side of the cabin, providing stable lateral restraint even when the cabin has a large lateral width. The left lateral rod is connected to the left suspension mechanism and the right lateral rod to the right suspension mechanism, creating distributed restraint points that maintain stability across wide cabin configurations.
2Device complexity
If the lateral rods are positioned closer to the center to avoid interference with other components, then the device complexity is reduced, but the effectiveness of restraining the cabin from lateral movement deteriorates
Solution Approach 1:
The lateral rods are positioned in the lateral dimension (left-right direction) rather than being constrained to the longitudinal dimension. By disposing the left lateral rod leftward and laterally outward of the left suspension mechanism, and the right lateral rod rightward and laterally outward of the right suspension mechanism, the system achieves effective lateral restraint without interfering with central components. This dimensional positioning allows the rods to extend outward laterally to provide optimal restraint leverage while maintaining clear separation from other vehicle components.
3Ease of operation
If the suspension mechanisms allow greater cabin movement for comfort, then the ride quality is improved, but the lateral stability of the cabin deteriorates
Solution Approach 1:
The suspension mechanisms are configured to allow dynamic vertical movement of the cabin for ride comfort, while the lateral rods provide dynamic lateral restraint. The left and right lateral rods are connected to the left and right suspension mechanisms respectively, allowing the cabin to move upward and downward relative to the body through the suspension mechanisms while the lateral rods simultaneously restrain the cabin from moving leftward and rightward. This dynamic configuration maintains lateral stability throughout the suspension travel range.
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
This configuration stabilizes the cabin against leftward and rightward movement, enhances ride quality, and prevents unnecessary downward or upward movement, thereby improving operational comfort and reducing the likelihood of shock or interference.
Implementation Method 1
a right elastic body included in the right suspension mechanism and configured to define a limit of contraction of the right suspension mechanism
Implementation Method 2
a right rebound spring included in the right suspension mechanism, and configured to apply resistance to extension of the right suspension mechanism
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A work vehicle, comprises: an operation section (9) occupiable by an operator; a cabin (10) accommodating the operation section (9); left and right suspension mechanisms (24) via which a body (3) of the work vehicle supports a left portion and a right portion of the cabin (10); and left and right lateral rods (25) configured to allow the cabin (10) to move upward and downward relative to the body (3) and restrain the cabin (10) from moving leftward and rightward relative to the body (3).