Hay-Making Machine Attachment Frame Pivot Levers
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Solution Overview
Problem
Hay-making machines with mounted designs face challenges in adapting to different tractor attachment situations, leading to suboptimal center of gravity alignment and increased weight on the front axle during road transport, affecting steerability and safety.
Innovation Solution
The design incorporates movable pivoted levers in the attachment frame, allowing for easy adjustment between two operating positions to optimize support and alignment, reducing weight on the front axle and improving adaptability without significant additional cost or material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the hay-making machine is connected to the tractor's three-point linkage for mounted operation, then the machine can be transported on road without a chassis, but the entire weight of the machine is borne by the tractor during road transport, causing negative weight-relieving effect on the front axle and affecting steerability
Solution Approach 1:
The attachment frame is designed with movable pivoted levers that can be adjusted between different positions to dynamically change the machine's center of gravity location. This allows the system to adapt between work position (machine behind tractor) and transport position (machine closer to tractor), optimizing steerability during road transport while maintaining structural simplicity
2Adaptability or versatility
If the hay-making machine is designed with fixed attachment frame, then the structure is simple and inexpensive, but it cannot adapt to different attachment situations of different tractors, leading to suboptimal center of gravity alignment
Solution Approach 1:
The attachment frame is segmented into fixed parts and movable pivoted levers. The pivoted levers can be independently adjusted to different positions, allowing the attachment frame to adapt to various tractor configurations without requiring complete redesign of the entire structure
Solution Approach 2:
The pivoted levers provide dynamic adjustability, enabling the attachment frame to be reconfigured for different tractor types and attachment situations, optimizing center of gravity alignment while maintaining overall structural simplicity
3Adaptability or versatility
If variable length frame elements are used to adapt to different attachment situations, then adaptability is improved, but the additional material increases the weight and price of the machine
Solution Approach 1:
Instead of using variable length frame elements, the invention employs movable pivoted levers of fixed length that can be repositioned to achieve adaptability. This approach provides the necessary flexibility without requiring additional material or increasing machine weight
4Adaptability or versatility
If the pivoted levers are made adjustable between two operating positions, then adaptability to different attachment situations is improved, but conversion effort is required
Solution Approach 1:
The pivoted levers are designed with bearing points that allow easy repositioning between two predefined operating positions. This dynamic adjustability enables quick conversion without complex procedures, balancing adaptability with minimal conversion effort
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
This design enhances the hay-making machine's adaptability and handling by maintaining stable, adjustable support elements, reducing wear and improving steerability while minimizing the load on the front axle, thus ensuring safer operation across varying conditions.
Implementation Method 1
movable pivoted levers (10) in the attachment frame (5), which can assume two operating positions with little conversion effort
Implementation Method 2
lower connection elements of the attachment frame of the hay-making machine according to the invention as movable pivoted levers
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Haymaking machine (1) with driven processing tools for crop lying on the ground for mounting on a three-point linkage of an agricultural tractor, in particular a tractor (8), comprising a top link and two lower links, with a mounting frame (5) having an upper (6) and two lower coupling points (7), wherein at least one of the lower coupling points (7) is vertically movable and the haymaking machine (1) has adjustable support elements (9) for shifting the center of gravity towards the tractor (8), wherein the support elements (9), which are adjustable in at least two operating positions, are designed as pivot levers (10) which can be pivoted about a pivot axis and which have the lower coupling points (7) of the mounting frame (5) for the lower links of the three-point linkage in a movable design at their pivotable end and have limited pivot ranges of the lower coupling points (7) in the area of athe horizontal plane laid by the pivot axes of the pivot levers (10) enable.