Ripper Point Guide Groove Locking for Easier Pin Removal
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Solution Overview
Problem
Conventional ripper point attachment structures face difficulties in easy attachment and detachment of the pin member due to large frictional resistance, making it challenging to attach and remove the ripper point from the ripper shank.
Innovation Solution
A ripper point attachment structure featuring a ripper point with a wedge shape, a pin member inserted through holes in the ripper shank and point, and a locking member to secure the pin, allowing for easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pin member is used to attach the ripper point to the ripper shank, then the attachment is secure, but the frictional resistance is large making attachment and detachment difficult
Solution Approach 1:
The attachment structure is divided into separate functional components: the pin member for connection, the retainer for securing, and the guide groove for controlled movement. This segmentation allows each component to perform its specific function efficiently, reducing overall friction during attachment and detachment operations while maintaining secure connection when assembled.
Solution Approach 2:
The guide groove acts as an intermediary element between the pin member and retainer. It provides a controlled path for the pin member to slide through during attachment and detachment, reducing frictional resistance by distributing the contact force along the groove surface rather than at a single point, while still ensuring proper alignment and secure retention when assembled.
2Reliability
If a retainer is used to prevent the pin member from coming loose, then the connection is secure, but the frictional resistance increases making removal difficult
Solution Approach 1:
The guide groove is pre-formed in the ripper point body, creating a prepared path that guides the pin member during attachment. This preliminary structural preparation ensures that the pin member follows the correct trajectory and engages smoothly with the retainer, reducing friction and enabling quick attachment and detachment operations without requiring force or excessive time.
3Reliability
If the pin member passes through the retainer, then the locking function is achieved, but the frictional resistance makes the operation complex
Solution Approach 1:
The guide groove and retainer are integrated into a unified structure where the groove is formed as part of the ripper point body and the retainer engages within this pre-formed space. This merging of functions into a single integrated component achieves the locking function while simplifying the overall structure, eliminating the need for separate guiding mechanisms and reducing the complexity of the attachment structure.
Data Source
AI summary
With a ripper point attachment structure, a pin member is inserted into a first pin hole formed in a ripper shank and a second pin hole formed in a ripper point. A locking member is engaged with the pin member to prevent the pin member from coming loose. The ripper point includes an opening, an internal space and a guide groove. The opening is formed at a rear end. The internal space is formed from the opening toward a distal end surface. The guide groove is formed in a predetermined range from the rear end toward the distal end surface in a portion of an inner surface forming the internal space. A second pin hole of the ripper point is disposed on a bottom surface of the guide groove. The locking member is disposed in a space forming the guide groove.