Leaf-Spring Tillage Mounting for Vibration and Wear Reduction
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Solution Overview
Problem
Existing agricultural soil cultivation devices with rigidly clamped leaf spring elements experience increased wear and breakage due to oscillating and impact movements, particularly when encountering obstacles.
Innovation Solution
An agricultural soil cultivation device with an articulated connection of the frame-side mounting section and a longitudinally movable guide on the retaining element, allowing the leaf spring element to deform and absorb vibrations, reducing stress and wear by using a ring-shaped end segment and softer material for the retaining elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the frame-side mounting section is rigidly clamped to the bracket, then the tillage implement is firmly secured, but the leaf spring element experiences increased wear and breakage due to oscillating and impact movements
Solution Approach 1:
The mounting section is designed with an articulated connection that allows dynamic movement relative to the bracket. The ring-shaped end segment can pivot on the axis and the retaining elements allow longitudinal movement, transforming the rigid fixed connection into a dynamic adaptable connection that moves with the oscillating and impact movements during operation, thereby reducing wear and breakage
Solution Approach 2:
The connection parameters are changed from fixed to movable. The mounting section can change its position parameters through pivoting on the axis and longitudinal movement between retaining elements, allowing the connection to adapt to varying operational conditions and reduce stress concentrations that lead to wear and breakage
2Object-affected harmful factors
If the leaf spring element is allowed to move freely to absorb vibrations, then vibration damping is improved, but the tillage implement may lose proper positioning and depth control
Solution Approach 1:
The axis and retaining elements act as intermediary elements that guide and control the movement of the mounting section. The articulated connection on the axis provides pivoting movement for vibration absorption, while the retaining elements provide longitudinal guidance, ensuring the tillage implement maintains proper positioning and depth control even while absorbing vibrations
Solution Approach 2:
The mounting section is designed with controlled dynamic movement capabilities. The articulated connection allows pivoting motion to absorb vibrations, while the retaining elements constrain the movement to specific degrees of freedom, maintaining stability in critical directions while allowing movement in vibration-absorbing directions
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 design significantly reduces stress on the leaf spring elements, minimizing wear and increasing their service life while maintaining effective operation and reducing the weight of the cultivation device components.
Implementation Method 1
The leaf spring element can deform according to the bending load transmitted to it by the tillage implement
Implementation Method 2
The articulated connection of the frame-side mounting section and the longitudinally movable guide on the at least one retaining element increases the elasticity of the leaf spring element
Data Source
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AI summary
The present invention relates to an agricultural soil cultivation device (1) comprising a frame element (2) on which brackets (3) are arranged, on each of which at least one soil cultivation means (5) is arranged, the soil cultivation means (5) being connected to the respective bracket (3) by a leaf spring element (4), wherein the respective leaf spring element (4) has a frame-side mounting section (9) for attachment to the bracket (3) and an opposite mounting section (10) for attaching the at least one soil cultivation means (5), wherein an axis (11) is arranged on the bracket (3) to which the leaf spring element (4) is articulated with an end segment (12) of the mounting section (9), in particular annular in design, and wherein at least one retaining element (13) is arranged on the bracket (3) spaced apart from the axis (11), on which the leaf spring element (4) is guided in a relatively movable manner.