Modular Track Shoe Assembly With Replaceable Grouser Tabs
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Solution Overview
Problem
The manufacture of track shoes for track-type vehicles is challenging due to the large size of the rolled material sections, limiting the number of manufacturing facilities and increasing costs. Additionally, the grousers of track shoes experience significant wear, leading to a limited lifespan and the need for frequent replacements.
Innovation Solution
A track shoe assembly is designed with a shoe plate having slots and a grouser with tabs, allowing for secure attachment and easy replacement. The grouser is formed separately from the shoe plate, enabling manufacturing in more facilities and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If track shoes are manufactured by rolling material into large 10-meter sections, then the structural integrity and wear resistance are improved, but the manufacturing cost increases and the number of facilities capable of production is limited
Solution Approach 1:
The track shoe is divided into separate components: a shoe plate and a grouser. The shoe plate is manufactured by rolling material into large sections while the grousers are manufactured separately in smaller facilities. This segmentation allows the shoe plate to maintain the structural integrity from large-scale rolling while enabling grousers to be produced in more locations, reducing manufacturing costs and improving accessibility.
2Ease of manufacture
If grousers are separately formed and welded to the shoe plate, then manufacturing accessibility and cost are improved, but the welded joint becomes vulnerable to strain from terrain forces
Solution Approach 1:
The grouser is further segmented into a body and integrally formed tabs that extend from the attachment surface. These tabs are inserted into slots in the shoe plate and welded, creating a distributed attachment system. This segmentation of the attachment mechanism distributes terrain forces across multiple attachment points rather than concentrating stress at a single welded joint, improving overall joint strength while maintaining manufacturing accessibility.
Solution Approach 2:
The attachment system combines mechanical interlocking (tabs in slots) with welding to create a composite attachment structure. This hybrid approach leverages both the mechanical strength of interlocking geometry and the bonding strength of welding, resulting in a joint that can better withstand terrain forces while remaining manufacturable in accessible facilities.
3Reliability
If the entire track shoe is replaced when grousers wear out, then the reliability is maintained, but the loss of time and material increases due to replacing functional components
Solution Approach 1:
The track shoe is designed as segmented modular components (shoe plate and grousers) that can be independently replaced. When grousers wear out, only the grouser components need to be replaced rather than the entire track shoe assembly. This reduces material waste by preserving the functional shoe plate and other intact components while maintaining the reliability of the track shoe through replacement of only the worn elements.
4Ease of manufacture
If grousers are separately manufactured and assembled, then manufacturing cost and accessibility are improved, but the device complexity increases
Solution Approach 1:
While segmentation into separate components enables manufacturing in more locations, the attachment mechanism uses simple geometric features (tabs and slots) that minimize assembly complexity. The tabs are integrally formed with the grouser body and designed to fit into corresponding slots in the shoe plate, creating a straightforward insertion and welding process that does not require complex assembly procedures or specialized equipment.
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 design allows for the manufacture of track shoes in a wider range of facilities, reducing costs and improving accessibility. The modular design of the grouser and shoe plate facilitates easier replacement, extending the lifespan of the track shoes and reducing maintenance efforts.
Implementation Method 1
The tabs are welded to the shoe plate to form a secure attachment
Data Source
AI summary
In one aspect, a track shoe assembly may include a shoe plate having a shoe plate body including a shoe plate attachment surface, and at least two slots extending through at least the shoe plate attachment surface. The track shoe assembly may also include a grouser having a grouser body having a grouser attachment surface, and at least two tabs, integrally formed with the grouser body, the at least two tabs extending from the grouser attachment surface, and perpendicular to the grouser attachment surface, the at least two tabs of the grouser being configured to be positioned within the at least two slots of the shoe plate. In another aspect, a method of manufacturing a track shoe assembly may include forming a shoe plate as described above, forming a grouser as described above, and attaching the grouser to the shoe plate to thereby form a track shoe assembly.