Tracked Dumping Compartment With Asymmetric Guide Rail
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Solution Overview
Problem
Existing dump semitrailers face issues with cargo leakage and contamination of transmission components due to relative movement between the rubber track and movable bed, and thermal and wear-related deformations affecting the guide rail's functionality.
Innovation Solution
A tracked dumping compartment design featuring a guide rail with a chain system, including conventional and irregular outer link plates, rollers, and a rubber track supported by blocking plates with angled sections, and multiple overlapped rubber tracks to prevent leakage and reduce friction, along with a guide rail cross-section shape that minimizes interference and deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rubber track and movable bed make relative movement during unloading, then the unloading function is achieved, but cargo leakage occurs and transmission components are contaminated
Solution Approach 1:
The blocking plate is divided into multiple functional sections: a first blocking section with a blocking surface that prevents cargo leakage, and a second blocking section that guides the rubber track. This segmentation allows the system to simultaneously achieve cargo containment and track movement guidance without interference.
Solution Approach 2:
The blocking plate acts as an intermediary structure between the movable bed and the rubber track. It provides a blocking surface that prevents cargo from leaking while allowing the rubber track to move along its guiding surface, thus mediating between cargo containment and track movement requirements.
2Stability of the object's composition
If the guide rail is welded to the frame, then the guide rail is fixed in position, but thermal deformation causes wavelike deformations
Solution Approach 1:
The guide rail is extracted from the welded connection system and replaced with a bolted connection system. This removes the thermal deformation problem associated with welding while maintaining the positional stability and fixing function of the guide rail through mechanical fastening.
3Device complexity
If the guide rail has a circular cross-section, then the structure is simple, but wear causes the inner link plate to interfere with frame cross members
Solution Approach 1:
The guide rail cross-section is changed from a symmetric circular shape to an asymmetric shape with a flat side and a rounded side. The flat side provides a wear-resistant contact surface for the inner link plate, preventing interference with frame cross members, while the rounded side maintains smooth chain movement. This asymmetric design resolves the conflict between structural simplicity and operational reliability.
4Volume of moving object
If the rubber track is positioned close to the movable bed, then the structure is compact, but friction increases making movement difficult
Solution Approach 1:
The blocking plate provides a localized friction-reducing surface for the rubber track to move along, while maintaining the overall compact structure. The smooth blocking surface reduces friction in the critical movement area without requiring increased clearance throughout the entire system, thus resolving the conflict between compactness and ease of movement.
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 solution effectively prevents cargo leakage, enhances the structural integrity of the guide rail, and reduces power consumption by converting sliding friction to rolling friction, thereby improving the stability and reliability of the dumping compartment.
Implementation Method 1
the rollers rotationally fit to the guide rail... converts sliding friction to rolling friction
Implementation Method 2
blocking plates are fixed on said frame cross members and frame rails, said blocking plate comprising first angled sections and vertical sections, the rubber track being positioned below the angled sections and between the vertical sections
Data Source
AI summary
A tracked dumping compartment including frame cross members and frame rails, a guide rail fixed on the frame cross members, and said guide rail supporting a chain; the chain includes inner link plates, outer link plates, rollers and pins, the rollers rollingly fit to the guide rail; carrier plates are fixed on irregularly shaped outer link plates, and a rubber track is fixed on the carrier plates; blocking plates are fixed on the frame cross members and frame rails, the blocking plates including a first angled section and a vertical section, the rubber track positioned below the first angled sections and between the vertical sections, the angle between the first angled sections and the top surface of the rubber track being 30°-70°, and the width of the rubber track when in a free state being less than or equal to the distance between the vertical sections.