Rotating Rod Cam Locking Mechanism for Agricultural Header
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Solution Overview
Problem
The existing agricultural header cutter bar assemblies are inefficient in transitioning between flexible and rigid configurations, leading to delays and reduced harvesting efficiency due to the difficulty in aligning and inserting pins to block or allow pivoting movements of the arms.
Innovation Solution
A locking mechanism featuring a rod with cams that rotate to engage or disengage with the arms, allowing the cutter bar assembly to switch between flexible and rigid configurations, enabling easy transition between the two states without manual alignment of openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a pin is inserted through openings in the arm and header frame to block pivoting movement, then the cutter bar assembly transitions to a rigid configuration, but the alignment and insertion process becomes difficult and time-consuming
Solution Approach 1:
The locking mechanism uses a movable rod that can rotate between locked and unlocked positions. The rod moves dynamically to engage or disengage the locking function, eliminating the need for manual alignment and insertion operations. This dynamic mechanism allows rapid transition between rigid and flexible configurations.
Solution Approach 2:
The rod acts as an intermediary element between the arm and header frame. Instead of directly inserting pins through aligned openings, the rod provides a mediated locking action through its rotation, which engages the locking function without requiring precise alignment of multiple components.
2Stability of the object's composition
If manual lifting of the arm is performed to align openings for pin insertion, then the rigid configuration is achieved, but the operation becomes difficult and labor-intensive
Solution Approach 1:
The rod is designed to rotate freely between locked and unlocked positions without requiring manual lifting or positioning. The dynamic rotation mechanism eliminates the labor-intensive alignment process while maintaining secure locking when engaged.
Solution Approach 2:
The locking mechanism is self-aligning through the rotational motion of the rod. The mechanism serves itself by automatically engaging or disengaging the locking function through simple rod rotation, eliminating the need for operator intervention in alignment and insertion operations.
3Adaptability or versatility
If the cutter bar assembly is made flexible with pivoting arms, then the cutting height can follow field contours, but the ability to achieve a rigid configuration is compromised
Solution Approach 1:
The arm is designed with dynamic capability to pivot when unlocked and remain fixed when locked. The rod provides the means to switch between these two states, allowing the system to adapt between flexible and rigid configurations as needed for different operating conditions.
Solution Approach 2:
The system changes its structural parameter from flexible to rigid through the rotation of the rod. When the rod rotates to the locked position, it changes the arm's state from able to pivot to fixed, thereby changing the overall rigidity parameter of the cutter bar assembly.
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
This mechanism allows operators to quickly change the cutter bar assembly's configuration from flexible to rigid and vice versa, enhancing harvesting efficiency by simplifying the process and reducing operational delays.
Implementation Method 1
a cam (404) coupled to the rod (402) and configured to engage a respective arm (300) of the agricultural header
Data Source
AI summary
A locking mechanism for an agricultural header includes a rod configured to extend laterally along the agricultural header and a cam coupled to the rod and configured to engage a respective arm of the agricultural header. The arm is configured to support a cutter bar assembly of the agricultural header, and the arm is configured to rotate relative to a frame of the agricultural header. The rod is configured to rotate in a first direction to a first orientation to engage the cam with the arm to block rotation of the arm relative to the frame, and the rod is configured to rotate in a second direction, opposite the first direction, to a second orientation to disengage the cam from the arm to enable rotation of the arm relative to the frame.