Coupling Device Lever Mechanism Stroke Expansion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional coupling systems for tools like pincers and milling cutters on self-propelled vehicles limit the horizontal movement of tools due to their compact design, restricting the useful stroke and being prone to damage from dust and dirt in applications like road works.
Innovation Solution
A coupling device with a translationally movable support body and a lever mechanism connected to a linear actuator, allowing indirect movement and a multiplier effect on the stroke, enabling the tool to move across the entire width of the vehicle while maintaining compact dimensions and resisting dust exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a linear actuator is used to perform horizontal movement of a milling cutter along a guide, then the tool can be moved horizontally, but the stroke of the actuator is limited by its own encumbrance
Solution Approach 1:
The patent introduces a lever mechanism that converts the linear motion of the actuator into rotational motion of the lever arm, which then translates into horizontal movement of the milling cutter. This dimensional transformation allows the actuator to remain compact while achieving a longer effective stroke through the mechanical advantage provided by the lever's rotation and the guide's geometry.
Solution Approach 2:
The lever arm acts as an intermediary element between the actuator and the milling cutter. Instead of the actuator directly pushing the cutter along the guide, the lever arm mediates this interaction, amplifying the actuator's stroke through rotational movement and mechanical leverage to achieve the full width of the loader.
2Length of moving object
If a screw actuator is used for horizontal movement of a milling cutter, then a greater stroke is achieved, but the movement speed is limited and the system is vulnerable to dust and dirt damage
Solution Approach 1:
The patent replaces the screw actuator mechanism with a linear actuator combined with a lever mechanism. This substitution eliminates the screw threads that are vulnerable to dust and dirt damage, while maintaining the ability to achieve a long stroke through the lever's rotational movement and mechanical advantage, thereby improving reliability in dusty road work environments.
3Length of moving object
If the attachment system is designed to extend beyond the lateral encumbrance of the vehicle, then the tool can move along the entire width of the loader, but the compact dimensions are compromised
Solution Approach 1:
The patent uses the rotational dimension of the lever arm to achieve linear horizontal movement of the milling cutter across the full width of the loader. This dimensional transformation allows the coupling device to maintain compact dimensions while achieving the required long stroke through the lever's rotation and the guide's geometric constraints.
Solution Approach 2:
The system employs dynamic movement through the lever arm's rotation to achieve the full horizontal stroke. The lever arm rotates through an angle that, combined with the guide's geometry, transforms into the full width movement of the cutter, allowing compact stationary dimensions while achieving extended dynamic movement range.
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 provides a high movement capacity with contained dimensions and improved resistance to dust, enabling effective horizontal movement of tools across the entire width of the vehicle, overcoming the limitations of conventional systems.
Implementation Method 1
a lever mechanism connected to a linear actuator, allowing indirect movement and a multiplier effect on the stroke
Data Source
AI summary
A coupling device for a tool, which can be applied to a self-propelled vehicle, includes a main frame, a connection device to a coupling element of the self-propelled vehicle, and a translationally movable support body configured to support the tool in a work position. The translationally movable support body is mounted on the main frame in a translationally movable manner along a translation direction. The coupling device further includes a movement device of the translationally movable support body.