Bucket Tooth Attachment Structure With Sliding Lock Member
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Solution Overview
Problem
Conventional tooth attachment structures for buckets face difficulties in mounting and dismounting due to high frictional resistance when inserting or removing the pin member, making it challenging to replace teeth.
Innovation Solution
A tooth attachment structure that includes a tooth with a guide groove and pin hole, a pin member, and a lock member, where the lock member engages with the pin member by sliding, facilitating easy mounting and dismounting by reducing frictional resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pin member is locked by engaging a retainer with the pin member in the conventional tooth attachment structure, then the tooth can be securely fixed to the tooth adapter, but it becomes difficult to mount and remove the pin member due to large frictional resistance
Solution Approach 1:
The locking mechanism is divided into two distinct functional parts: a retainer that provides secure locking through engagement surfaces, and a separate lock member that facilitates easy mounting and removal. The pin member itself is segmented with a locking surface and a separate engagement portion, allowing the locking function to be decoupled from the friction-based retention, thus enabling both secure fixation and easy operation.
2Ease of manufacture
If the pin member passes through the retainer in the conventional structure, then the tooth and tooth adapter are connected, but the frictional resistance becomes large making the operation difficult
Solution Approach 1:
The lock member acts as an intermediary component between the pin member and the retainer. Instead of the pin member directly engaging with the retainer in a friction-based manner, the lock member mediates this interaction by engaging with both the pin member's engagement portion and the retainer, providing a low-friction mechanism for mounting and removal while maintaining secure connection.
Data Source
AI summary
A tooth attachment structure for a bucket includes a tooth, a pin member, and a lock member. The tooth includes a guide groove provided on an inner surface of the tooth and a pin hole provided in the guide groove. The pin member is disposed in the pin hole. The lock member is disposed in the guide groove. The lock member locks the pin member. The lock member engages the pin member by sliding toward the pin member.