Loader Self-Leveling Linkage for Constant Bucket Angle
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Solution Overview
Problem
Conventional loader work apparatuses require vehicles to reverse or advance to lift a bucket vertically, leading to reduced work efficiency due to forward and backward bucket movement.
Innovation Solution
A self-leveling kit that includes a bucket connecting arm, a bucket cylinder with variable length, a boom cylinder, a boom, a boom support part, a boom connecting plate, a link connecting plate, a connecting bracket, and a self-leveling bar to maintain a constant bucket angle during lifting and lowering operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional loader work apparatus uses a lift arm rotating around a hinge part to raise or lower the bucket, then the bucket can be lifted vertically, but the bucket moves forward or backward during lifting, requiring the vehicle to reverse or advance
Solution Approach 1:
The patent introduces a self-leveling kit comprising a link connecting plate, connecting bracket, and self-leveling bar as intermediary components between the existing loader components. These components act as mediators to constrain the bucket's movement path, ensuring it rises vertically without forward or backward displacement, thereby eliminating the need for vehicle reversal or advancement during lifting operations
2Ease of operation
If the lift arm rotates to raise the bucket, then the bucket can be lifted, but the bucket angle changes during lifting
Solution Approach 1:
The self-leveling kit introduces dynamic constraints through the self-leveling bar and connecting components that actively maintain a constant bucket angle during lifting. The mechanism dynamically adjusts the motion path of the bucket to ensure the bucket angle remains consistent throughout the lifting process, transforming the static rotation motion into a controlled dynamic motion that preserves orientation
3Productivity
If a self-leveling kit is added to maintain constant bucket angle, then operational efficiency improves, but device complexity increases
Solution Approach 1:
The self-leveling kit is designed as a segmented, modular assembly consisting of distinct components (link connecting plate, connecting bracket, self-leveling bar) that can be independently manufactured and assembled. This segmentation allows the complex self-leveling function to be achieved through simple, discrete parts rather than a monolithic complex mechanism, making the system easier to manufacture, assemble, and maintain
Data Source
AI summary
A loader work apparatus includes: a bucket connecting arm connected to a bucket for scooping or holding cargo; a bucket cylinder having a variable length to allow the bucket to rotate about a connection part of the bucket connecting arm; a boom cylinder providing force for raising and lowering the bucket connecting arm; a boom connected to the bucket connecting arm and the boom cylinder; a boom support part to which the boom and the boom cylinder are coupled; and a boom connecting plate to which the bucket connecting arm, the boom cylinder, and the boom are coupled.