Loader Tilting System Kinematic Angle Optimization
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Solution Overview
Problem
Loader machines face challenges in maintaining optimal bucket angle throughout the range of motion of the lift arm, leading to inadequate material retention and inefficient breakout force, due to limitations in existing tilting system designs.
Innovation Solution
A tilting system with a tilt cylinder, tilt lever, and tilt link configuration, where the angle between specific pivot pins is set between 135 to 165 degrees, ensuring consistent bucket angle and enhanced material handling capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the implement is a bucket, it may be desired that the bucket is positioned at a bucket angle that provides adequate material retention throughout the range of motion of the lift arm, but existing tilting system designs fail to maintain optimal bucket angle throughout the range of motion
Solution Approach 1:
The patent applies parameter changes by optimizing the angle between the tilt link and tilt lever to a specific range (135-165 degrees). This parameter optimization ensures that the bucket maintains the desired angle relative to the horizontal throughout the entire range of motion of the lift arm, thereby providing consistent material retention without requiring complex additional mechanisms.
2Productivity
If the tilt link and tilt lever are configured with optimal angle, then material retention and breakout force are improved, but the design complexity of the tilting system increases
Solution Approach 1:
The patent resolves this contradiction by identifying and optimizing a specific geometric parameter (the angle between tilt link and tilt lever within 135-165 degrees). This single parameter optimization simultaneously improves material retention and breakout force while avoiding the need for complex additional mechanisms or controls, thus enhancing productivity without proportionally increasing device complexity.
3Force
If the bucket angle is optimized for material retention, then breakout force is enhanced, but the linkage assembly design requires significant changes
Solution Approach 1:
The patent applies local quality by making a targeted modification to a specific local component (the angle between the tilt link and tilt lever) rather than redesigning the entire linkage assembly. This localized parameter optimization (setting the angle to 135-165 degrees) is sufficient to achieve the desired bucket angle for improved breakout force and material retention, while leaving the rest of the linkage assembly design unchanged.
Data Source
AI summary
A tilting system for an implement pivotally connected to a lift arm. The tilting system includes a tilt cylinder configured to provide a rotary movement to the implement. The tilting system includes a tilt lever pivotally connected to the tilt cylinder by a pivot pin E and to the implement by a pivot pin C. The tilting system further includes a tilt link pivotally connected to a lift arm by a pivot pin F, and to the tilt lever by a pivot pin D. An angle defined between a line DE connecting the pivot pins D and E and a line DC connecting the pivot pins D and C, is in the range of 135 to 165 degrees.