Tilted Cylindrical Feed Displacement Device for Autonomous Vehicle Stability
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Solution Overview
Problem
Existing autonomous and self-propelled feed-displacement vehicles face issues with stability and effectiveness due to the twisting of conical feed-displacement elements, which increases resistance and limits wheelbase, and the inefficiency of freely rotating circular elements that change orientation during rotation.
Innovation Solution
A vehicle with a cylindrical feed-displacement device that is rotationally symmetrical about its axis, positioned at an angle to the vertical, allowing for a stiffer design that reduces twisting and enhances stability, combined with a conical upper section for easy feed discharge and a rubber bottom edge for improved friction and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the feed-displacement device is made flexible to allow twisting during rotation about the cylinder axis, then the resistance during rotation is reduced, but the pushing function and feed-displacing capability deteriorate
Solution Approach 1:
The feed-displacement device is divided into two functional sections: a rigid bottom section for effective feed pushing and a flexible upper section for accommodating twisting movements. This segmentation allows each part to optimize its function - the rigid bottom maintains pushing effectiveness while the flexible top reduces rotational resistance
Solution Approach 2:
Different parts of the feed-displacement device have different flexibility characteristics. The bottom section is rigid to maintain pushing function, while the upper section is flexible to reduce resistance during rotation. This local differentiation of mechanical properties resolves the contradiction between resistance reduction and feeding effectiveness
2Ease of operation
If conical feed-displacement means taper towards the top, then feed discharge is facilitated, but a relatively large amount of resistance is produced when the vehicle takes bends due to friction with the ground
Solution Approach 1:
The conical housing is segmented into a rigid bottom section for low-resistance turning and a flexible upper section for easy feed discharge. This allows the vehicle to benefit from both the feed-discharge advantage of conical shapes and the low-resistance advantage of cylindrical bottom sections
Solution Approach 2:
The bottom section has a cylindrical shape with uniform friction characteristics that reduce resistance during turns, while the upper conical section provides facilitated feed discharge. This local differentiation of geometric properties resolves the contradiction between easy feed discharge and low turning resistance
3Productivity
If conical feed-displacement means taper towards the bottom, then the wheel base and vehicle stability are limited, but feed displacement is improved
Solution Approach 1:
The housing is segmented into a cylindrical bottom section that provides a wide wheel base for stability, and a conical upper section that facilitates feed discharge and displacement. This segmentation allows both stability and feed displacement performance to be optimized simultaneously
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 cylindrical design improves the feed-displacement function by maintaining stability and reducing resistance during turns, while the adjustable angle and conical upper section facilitate efficient feed distribution and vehicle maneuverability, ensuring reliable operation and easy manufacturing.
Implementation Method 1
a rubber bottom edge for improved friction and durability
Data Source
AI summary
An autonomous and self-propelled vehicle for laterally displacing feed, having a frame and a housing, the housing including a rotatable feed-displacement device, at least a bottom section of the feed-displacement device being rotationally symmetrical about a cylinder axis, the cylinder axis being at an angle to the vertical direction in such a manner that a part of the feed-displacement device which, viewed in the direction of travel, is situated at the front is arranged closer to the ground than a part of the feed-displacement device which, viewed in the direction of travel, is situated at the rear.