Agricultural Cutting Unit With Adjustable Suspensions
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Solution Overview
Problem
Existing cutting units for agricultural working machines face difficulties in optimal operation due to a fixed working height and steering system interference, which hinders efficient harvesting under varying conditions.
Innovation Solution
A cutting unit with a support body, front and rear suspensions that can be rotated between transport and working positions, and adjustable between high and low positions using hydraulic or linear motor-driven adjusting devices, allowing for customizable working height based on harvesting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cutting unit uses a fixed working height design, then the structure is simple and easy to manufacture, but it cannot adapt to varying harvesting conditions and reduces harvesting efficiency
Solution Approach 1:
The cutting unit employs adjustable front and rear suspensions that can be positioned in multiple locations along the longitudinal axis, enabling dynamic reconfiguration of the cutting height and working position. This allows the system to adapt to varying harvesting conditions while maintaining a relatively simple structural design through discrete positioning rather than continuous adjustment mechanisms.
Solution Approach 2:
The invention changes the positional parameters of the cutting unit by allowing the front and rear suspensions to be adjusted to different locations along the longitudinal axis. This parameter adjustment enables variation in working height and steering interference characteristics, providing adaptability to different harvesting conditions without requiring complete structural redesign.
2Productivity
If the cutting unit operates with wheel contact on the ground, then stability is improved, but steering system interference increases and reduces harvesting efficiency
Solution Approach 1:
The cutting unit dynamically adjusts its operational state by elevating the wheels off the ground during harvesting operations. This dynamic positioning eliminates steering system interference that would otherwise occur during cutting, while allowing the wheels to contact the ground during transport for stability. The system thus optimizes harvesting efficiency by removing the harmful steering interference factor during the actual cutting process.
3Ease of operation
If the cutting unit is designed for easy manual rotation between positions, then ease of operation is improved, but the mechanism for position adjustment becomes more complex
Solution Approach 1:
The position adjustment system is segmented into discrete, standardized components that can be manually manipulated. The front and rear suspensions are divided into separate adjustable units with standardized mounting points, allowing independent adjustment of each suspension. This segmentation enables easy manual operation while keeping each individual adjustment mechanism relatively simple, avoiding the need for complex integrated adjustment systems.
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 adjustable cutting unit can be optimized for different harvesting parameters, reducing interference from the steering system and improving harvesting efficiency by allowing precise control of working height, minimizing wheel contact with the ground for reduced swinging and enhanced terrain adaptability.
Implementation Method 1
adjustable between high and low positions using hydraulic or linear motor-driven adjusting devices
Implementation Method 2
adjustable between high and low positions using hydraulic or linear motor-driven adjusting devices
Implementation Method 3
the front suspension and the rear suspension can be rotated between a transport position and a working position
Data Source
AI summary
A cutting unit for an agricultural working machine and a method for adjusting the cutting unit are disclosed. The cutting unit comprises a support body, a cutting device on the support body, a front suspension arranged on the support body on a first half of the cutting unit and has at least one wheel that rotates about a front axle and a rear suspension on the support body on a second half of the cutting unit and has at least two wheels that rotate about a rear axle, the front suspension and the rear suspension being rotatable about a respective rotary axis relative to the support body so that the front and rear suspensions can each be transferred between a transport position and a working position. The front suspension and the rear suspension, when in their respective working position, are moved relative to the support body between a high position and a low position.