Work Device Wide-Angle Pivot Jaw for Multi-Tasking
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Solution Overview
Problem
Current work devices are limited in their ability to perform multiple tasks efficiently, such as stump handling, material handling, and soil tilling, requiring multiple tools and resulting in high investment costs and logistical challenges, with switching between tasks reducing productivity.
Innovation Solution
A multi-purpose work device featuring a fixed jaw and a moveable jaw with a wide-angle pivot setup, allowing for grab operation, tearing, separating, demolition, material collection, and soil tilling, with the moveable jaw being narrower and capable of being turned out of the way for unobstructed operation, and equipped with a hydraulic actuator for opening and closing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple specialized tools are used for different tasks (stump handling, material handling, soil tilling), then task-specific performance is improved, but device complexity and capital investment increase
Solution Approach 1:
The work device combines multiple functions into a single unified structure. The body with fixed jaw and moveable jaw can perform stump handling by pressing between jaws, material handling by shovelling with the fixed jaw, and soil tilling by engaging the ground with jaw points. This eliminates the need for multiple specialized tools while maintaining task-specific effectiveness.
Solution Approach 2:
The invention merges the functions of stump harvesters, grabs, and soil tilling tools into one integrated device. The fixed jaw and moveable jaw work together as a unified gripping and processing system, combining the capabilities of previously separate tools into a single multi-functional unit.
2Adaptability or versatility
If multiple specialized tools are acquired for different operations, then operational capability is improved, but capital investment and logistics complexity increase
Solution Approach 1:
A single work device replaces multiple specialized tools, reducing capital investment while maintaining full operational capability. The unified design with fixed and moveable jaws provides stump handling, material handling, and soil tilling functions in one device, eliminating the need to acquire and maintain multiple separate tools.
3Adaptability or versatility
If tools are switched between different tasks, then task versatility is improved, but productivity decreases due to switching time
Solution Approach 1:
The work device maintains full task versatility without requiring switching between tools. The single device with its multi-functional jaw system can perform stump handling, material handling, and soil tilling operations sequentially or simultaneously, eliminating productivity losses associated with tool switching while maintaining complete operational versatility.
4Measurement precision
If a wide-angle pivot setup is used for the moveable jaw, then grab operation precision is improved, but device complexity increases
Solution Approach 1:
The moveable jaw is designed with a wide-angle pivot setup that allows dynamic adjustment of the jaw angle. This enables the jaw to adapt its orientation for precise grab operations while maintaining a relatively simple pivot mechanism. The hydraulic actuator controls the moveable jaw's position and angle, providing precision without excessive mechanical complexity.
Data Source
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AI summary
The invention relates to a work device (10), which is to be attached, by an attachment arrangement (12), by its body (11) to the end of a work machine's set of booms. A pair of jaws (13) is fitted to the body and it includes two jaws (14, 15) arranged to form a grab (16). The first of the jaws (14) is fixed to the body. The second jaw (15) is pivoted rotatably to the body (11), to open and close the grab. The moveable jaw is arranged to be acted on by a hydraulic actuator (17), to open and close the grab. Between the hydraulic actuator and the moveable jaw is a wide-angle pivot setup (53). An arm mechanism (18), equipped with two pivots (20, 21) fitted to a jaw arm (23) is arranged to belong to the wide-angle pivot setup. In addition, the wide-angle pivot setup is arranged to include a rotatable lever arm (24) fitted between the jaw arm and the body. The rotation angle of the movement created in the moveable jaw by the wide-angle pivot setup has a magnitude of more than 120°.