Self-Adjusting Spinner Alignment for Hay Bale Unrolling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bale movers with fixed spinners struggle to properly align with varying axial lengths of hay bales, leading to uneven unrolling and binding issues due to misalignment, which is common in bales from different sources or weathered during storage.
Innovation Solution
A bale mover with self-adjusting spinners that pivot relative to their axles and include gripping elements to align with the ends of the bale, ensuring a stable axis of rotation regardless of bale size, using a pivotable and rotatable design to accommodate different bale dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed spinners are used on the bale mover, then the device structure is simple, but the spinners cannot align properly with varying axial lengths of hay bales, causing misalignment and uneven unrolling
Solution Approach 1:
The spinner body is made pivotable relative to the spinner axle through a pivot mechanism, allowing the spinner to dynamically adjust its orientation to align with the bale axis regardless of bale length variations. This dynamic adjustment capability enables the spinner to adapt to different bale sizes while maintaining proper alignment for even unrolling.
2Adaptability or versatility
If the spinner axle is fixed at a specific angle to the arm, then the manufacturing is straightforward, but the spinner cannot accommodate different bale axial lengths, leading to binding and wobble during unrolling
Solution Approach 1:
The pivot mechanism allows the spinner body to change its angular position relative to the spinner axle during operation, enabling adaptation to various bale lengths without requiring multiple fixed-angle spinner assemblies. This single dynamic mechanism replaces what would otherwise require multiple manufactured variants.
Solution Approach 2:
The spinner automatically self-aligns with the bale axis through the pivot mechanism during engagement, eliminating the need for manual adjustment or pre-calibration for different bale sizes. The system self-adjusts to the correct orientation based on the bale's actual dimensions.
3Reliability
If fixed spinners are used, then the device is easier to operate, but misalignment causes the bale to bind or wobble during unrolling, resulting in uneven hay distribution
Solution Approach 1:
The pivotable spinner body automatically adjusts to maintain proper alignment with the bale axis during engagement and unrolling operations, preventing binding and wobble. This dynamic alignment ensures smooth, even hay distribution without requiring complex operational procedures from the user.
Data Source
AI summary
A bale mover with self-adjusting spinners for loading/unloading bales and unrolling bales. The bale mover includes a cross member and a pair of opposing arms that extend generally orthogonally to the cross member. The cross member is pivotable about an axis extending transverse to the bale mover to move the arms to extend away from the bale mover. The arms are moveable toward one another to pinch a bale between distal ends thereof. A spinner is provided at the distal end of each arm. The spinners include axles secured to the arms and spinner bodies which are rotatable about the respective axles to facilitate rotation of a bale engaged by the spinners. The spinners are also pivotable relative to the axles to enable alignment of the spinners with surfaces of the bale.