Separate Track Support Member Design for Undercarriage Assembly
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Solution Overview
Problem
Current track support members integrated into axle housing complicate assembly and maintenance, requiring cumbersome procedures and potential fluid spills, and necessitate the use of stronger, more expensive materials for the entire component due to shared structural loads.
Innovation Solution
A separate track support member design, comprising an attachment ring and undercarriage support arms, allows for the use of different materials for the track support member and axle housing, facilitating easier assembly and maintenance by decoupling the track support member from the axle housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the track support member is integrated into the axle housing as a single piece, then the structural strength and impact resistance are improved, but the assembly complexity and maintenance difficulty increase significantly
Solution Approach 1:
The track support member is divided into separate components: the axle housing and the track support arm assembly. The track support arm can be independently attached to the axle housing through bolting or other connection methods, allowing separate manufacturing, assembly, and maintenance of each component while maintaining structural integrity.
Solution Approach 2:
The track support arm is extracted as a separate removable component from the integrated axle housing design. This allows the track support arm to be removed independently for maintenance or replacement without requiring disassembly of the entire axle housing, significantly simplifying maintenance procedures.
2Reliability
If the track support member is made from ductile iron to withstand tractive forces, then the impact resistance and reliability are improved, but the material cost and weight increase
Solution Approach 1:
Different materials are used for different components based on their specific functional requirements. The track support arm, which directly withstands tractive forces and impacts, is made from ductile iron for high impact resistance. The axle housing, which provides structural support but does not directly bear the same dynamic loads, can be made from lighter or less expensive materials, optimizing the overall weight and cost while maintaining reliability where needed.
3Ease of manufacture
If the track support member is separate from the axle housing, then the material cost and assembly ease are improved, but the structural rigidity and load-bearing capacity may be reduced
Solution Approach 1:
The track support arm is pre-assembled with the drive wheel and other track components as a modular unit before attachment to the axle housing. This preliminary assembly simplifies the final installation process and ensures proper alignment and structural rigidity are achieved through pre-configured connection points and mounting features.
Solution Approach 2:
A connection interface or mounting structure serves as an intermediary between the separate track support arm and axle housing. This intermediary connection mechanism is designed to provide sufficient structural rigidity and load-bearing capacity while allowing for ease of assembly and disassembly through standardized connection methods such as bolting or locking mechanisms.
Data Source
AI summary
A track support member and drive assembly are disclosed. The drive assembly includes the track support member, an axle housing, driveshaft, hub, drive wheel, track drive frame, rollers and track. The driveshaft extends through the axle housing. The track support member is connected to the axle housing, and the driveshaft extends through the track support member. The hub rotates with the driveshaft, and the drive wheel. The drive frame is connected to the track support member, and the rollers are connected to the drive frame. The track is connected to the drive wheel and rollers. Rotation of the driveshaft rotates the hub and drive wheel which rotates the track about the drive wheel and rollers. The track support member can be a single integrated piece including an attachment ring for connecting to the axle housing, and undercarriage support arm(s) for connecting to the track drive frame.