Folding Bale Spear System for Tractor Attachment Flexibility
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Solution Overview
Problem
Conventional bale spear systems attached to tractors limit the tractor's ability to perform other tasks due to their permanent rearward extension, making it difficult to use the tractor with additional farm equipment simultaneously, and the attachment and removal process is time-consuming and labor-intensive.
Innovation Solution
A folding bale spear system that includes a frame securable to a tractor, with rotatable left and right fork posts and bale spears that can be extended rearwardly and then folded across each other to a parallel position, utilizing either a hydraulic cylinder or spring system for rotation, allowing for attachment of other farm equipment without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bale spears are permanently extended rearwardly from the tractor, then the bale spear system can continuously handle round bales, but the tractor cannot simultaneously perform other tasks or attach additional farm equipment
Solution Approach 1:
The bale spear system employs rotatable fork posts that can dynamically change position between extended rearwardly and folded across the frame. This dynamic positioning allows the system to transition between bale handling mode and tractor availability mode, resolving the contradiction between continuous bale handling capability and tractor task flexibility.
Solution Approach 2:
The bale spear system is divided into separable components (fork posts, bale spears, frame) that can be independently positioned. The fork posts can be rotated to fold the bale spears across the frame, segmenting the space behind the tractor to allow other equipment attachment while maintaining bale handling capability when needed.
2Ease of operation
If bale spears are permanently extended rearwardly, then bale handling operation is simplified, but attachment and removal of the system becomes time-consuming and labor-intensive
Solution Approach 1:
The rotatable fork posts enable the bale spears to be folded across the frame for easy attachment and removal, while maintaining simple operation during use. The dynamic folding mechanism allows quick deployment and stowage without complex procedures.
3Ease of operation
If bale spears are extended rearwardly to handle bales, then bale lifting capability is achieved, but the tractor's gravitational center shifts and stability is compromised on uneven or steep terrain
Solution Approach 1:
The system can dynamically fold the bale spears across the frame when not in use, returning the tractor to a more stable configuration. When bale handling is needed, the spears extend rearwardly to provide lifting capability. This dynamic reconfiguration allows the tractor to maintain stability while achieving bale lifting when required.
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
Enables the use of the bale spear system while allowing other farm equipment to be attached to the tractor, improving operational flexibility and reducing the time and labor required for attachment and removal.
Implementation Method 1
The means for rotation of the left and right fork posts comprises a hydraulic cylinder and other components attachable to a hydraulic system of the tractor
Implementation Method 2
In a further embodiment, the means for rotation of the fork posts comprises a spring system secured to the fork posts
Data Source
AI summary
A folding bale spear system including a frame securable to a farm implement, particularly a tractor, left and right fork posts rotatable secured to the frame, left and right bale spears, one secured to the left fork post and one secured to the right fork post, and a system for rotation of the left and right fork posts about the frame such that in an open position, the bale spears are extended rearwardly from the frame, and in a closed position the bale spears cross each other and are rotated to a position substantially parallel to the frame.