Tracked Vehicle Drive Sprocket Teeth With Dovetail Quick Replacement
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Solution Overview
Problem
Existing drive wheels for tracked vehicles experience significant wear, necessitating frequent maintenance, especially when exchange of drive sprocket members is required, which is cumbersome without access to a workstation.
Innovation Solution
A fastening arrangement for drive wheels featuring dovetail shaped recesses in the support member of the drive sprocket member, allowing for easy and efficient attachment and detachment of teeth, facilitating maintenance by enabling easy exchange and locking of teeth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If traditional fastening arrangements are used for drive wheel teeth, then the drive wheel can maintain structural integrity, but maintenance becomes cumbersome and time-consuming when teeth need to be exchanged
Solution Approach 1:
The drive sprocket member is segmented into a support member and separately attachable teeth. Each tooth can be independently removed and replaced by detaching from the support member, allowing maintenance without removing the entire drive wheel assembly. This segmentation enables quick tooth exchange by simply detaching and reattaching individual teeth to the support member's dovetail recesses.
Solution Approach 2:
The locking function is extracted into a separate dovetail shaped recess structure on the support member, which receives a locking portion of the tooth. This separate locking mechanism allows teeth to be quickly detached and reattached without complex fastening operations, significantly reducing maintenance time while maintaining secure attachment during operation.
2Ease of repair
If drive wheels are designed for easy tooth exchange, then maintenance becomes simpler, but the locking mechanism must ensure sufficient strength to withstand operational loads
Solution Approach 1:
The dovetail shaped recess features an asymmetric geometry with tapered walls that are wider at the base and narrower at the opening. This asymmetric shape provides strong mechanical interlocking when the tooth is inserted, with the tapered walls preventing withdrawal while allowing easy insertion. The asymmetric geometry ensures sufficient attachment strength to withstand operational loads while maintaining ease of exchange.
Solution Approach 2:
The dovetail shaped recess incorporates curved or angled surfaces rather than straight vertical walls. The curved geometry of the dovetail shape distributes loads more effectively across the tooth-support member interface, enhancing the strength of the connection while maintaining the ability to easily insert and remove teeth through simple linear motion.
Data Source
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AI summary
The present invention relates to a fastening arrangement of a drive wheel (DW) for an endless track (E) of a tracked vehicle (V) the drive wheel (DW) comprising a hub member (H) and a drive sprocket member (S1, S2). Said drive sprocket member comprises a set of teeth (10) arranged around the circumference of said drive sprocket member (S1, S2), said teeth (10) being configured to engage with said endless track (E). Said drive sprocket member (S1, S2) further comprises a support member (20) for teeth (10) of said drive sprocket member. Said teeth (10) are configured to be removably attached to said support member (20). Said fastening arrangement is configured for fastening one or more teeth (10) of the set of teeth (10) to the support member (20). Said fastening arrangement comprises a set of dovetail shaped recesses (22) of said support member (20). Each dovetail shaped recess (22) is configured to receive a locking portion (12) of one or more teeth (10) so as to provide a locking function for said one or more teeth (10). The present invention also relates a tracked vehicle.