Hydraulically Tilting Dual Bale Spear for Efficient Round Hay Handling
Solution Overview
Problem
Large round hay bales are difficult to pick up, move, and control due to their weight and density, especially on uneven terrain, posing safety and efficiency challenges in modern farming operations, and existing equipment struggles to handle multiple bales efficiently and cost-effectively.
Innovation Solution
A hydraulically tilting dual bale spear with multiple bale tines, connected to a tractor or loader via a pivot mechanism, allows for side-to-side tilting and simultaneous lifting of multiple bales without dragging, enhancing control and safety by maintaining bale alignment for easy offloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional single bale spears are used, then equipment simplicity is maintained, but productivity decreases due to handling one bale at a time
Solution Approach 1:
The patent combines multiple bale spears into a single integrated dual bale spear assembly, allowing simultaneous handling of two bales. The first and second bale spears are mounted on a common frame structure with shared hydraulic control, merging multiple functions into one device to increase productivity without proportionally increasing complexity.
Solution Approach 2:
The bale spears incorporate tilting capability through hydraulic cylinders that allow the spears to angle dynamically. This dynamic adjustment enables the spears to adapt to different bale positions and terrain conditions, improving handling effectiveness while maintaining operational simplicity through centralized hydraulic control.
2Object-affected harmful factors
If large round hay bales are picked up without tilting capability, then device simplicity is maintained, but harmful factors increase due to dragging and net wrap damage
Solution Approach 1:
The hydraulic tilting mechanism allows the bale spears to dynamically adjust their angle during bale pickup and transport. This dynamic capability enables the spears to lift bales cleanly without dragging them across the ground, preventing net wrap damage while maintaining operational simplicity through integrated hydraulic control.
Solution Approach 2:
The tilting capability allows the operator to preliminarily position the bale spear at an optimal angle before contact with the bale, preventing dragging and potential net wrap damage from the outset. This preliminary anti-action counteracts the harmful effect of ground contact before it can occur.
3Ease of operation
If non-tilting spears are used on uneven terrain, then device simplicity is maintained, but safety and control deteriorate
Solution Approach 1:
The tilting mechanism provides dynamic adjustment capability that allows the bale spears to adapt to uneven terrain and maintain proper bale orientation during transport. This enhances operator control and safety by enabling real-time adjustments to accommodate varying ground conditions while keeping the frame mechanism relatively simple through pivot-point-based design.
4Productivity
If multiple bales are handled simultaneously without tilting capability, then productivity increases, but harmful factors increase due to inability to level bales for offloading
Solution Approach 1:
The tilting capability allows the dual bale spear to level both bales simultaneously during transport and before offloading. This dynamic adjustment ensures that multiple bales can be transported efficiently while maintaining proper orientation for easy discharge, preventing the harmful effect of difficult offloading that would otherwise occur with non-tilting spears.
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
The solution improves the efficiency, safety, and control of moving large round hay bales, enabling the simultaneous handling of multiple bales without damaging the net wrap, while being durable, adjustable, and cost-effective.
Implementation Method 1
A hydraulic cylinder is positioned between the first frame member and the second frame member. When activated, the hydraulic cylinder tilts the second frame with respect to the first frame member
Data Source
AI summary
A hydraulically tilting dual bale spear having multiple bale tines is presented. The bale spear has a first frame and a second frame connected to one another at a pivot point. A hydraulic cylinder is positioned between the first frame member and the second frame member. When activated, the hydraulic cylinder tilts the second frame with respect to the first frame member thereby providing a safer, faster and more efficient way to gather and pick up bales. The benefit over a non-tilting dual bale spear is that it allows the operator to pick up two bales without stopping or dragging the first bale across the ground and ripping the net wrap. It also allows the operator to level out the two bales once picked up for easier off load onto a truck or trailer.



