Auger Bit Coupler Pin and Anchoring Pintle Assembly
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Solution Overview
Problem
Conventional augers face issues with the wear and tear of the interface between the bit and the powerhead, leading to potential damage and downtime for repair. Additionally, the anchoring devices often have complex or insufficiently secure attachment mechanisms, making them difficult to change or remove.
Innovation Solution
The auger system incorporates a collar and coupler design for attaching the bit to the powerhead, featuring a pin that resists separation and a resilient coupler that grips the collar. The anchoring device is designed with a pintle assembly and toggle to secure it to the frame while allowing for pivoting, facilitating easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a pin or bolt is used to connect the bit to the powerhead output, then the interface can accommodate high torque, but the pin or bolt wears out over time and may shear off or damage the bit or powerhead output
Solution Approach 1:
The connection interface is divided into multiple engagement points: the splines on the powerhead output shaft engage with corresponding splines in the bit, while additional pins or bolts provide supplemental connection. This segmentation distributes the torque load across multiple contact surfaces, reducing wear on any single component and preventing catastrophic failure from a single point of wear.
2Force
If conventional anchoring devices are attached to the powerhead frame, then they can provide resistance to torque, but the attachment mechanisms become overly complex or insufficiently secure
Solution Approach 1:
The anchoring device attachment mechanism is merged with the powerhead frame structure itself. The frame includes integrated attachment points such as loops, D-rings, or reinforced mounting locations that are part of the frame's construction rather than separate components. This integration provides secure torque resistance while maintaining simplicity in the overall design.
3Ease of operation
If conventional anchoring devices use simple attachment mechanisms, then they are easy to install, but they are not sufficiently secure for the auger environment
Solution Approach 1:
The anchoring device attachment mechanism incorporates dynamic elements such as quick-release latches, buckles, or snap-fit connections that allow for rapid installation and removal while maintaining secure engagement during operation. These mechanisms transition from a simple insertion state to a locked or secured state that provides reliable torque resistance throughout the augering process.
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 design enhances the durability of the bit-powerhead interface by reducing wear and eliminating the need for complex mechanisms, while also simplifying the attachment and removal of the anchoring device, reducing user effort and downtime.
Implementation Method 1
At least one of the arcuate portions may be formed with a resilient or elastic material that biases the portion toward a greater curvature so that the coupler grips the collar
Implementation Method 2
a spring to help limit movement of the toggle
Data Source
AI summary
An auger system may include a powerhead, a bit, and an anchoring device. A collar on the bit may be attachable to a rotatable output shaft of the powerhead with a coupler that is positionable around the collar. The collar may include a passageway that does not intersect the rotation axis of the output shaft. The coupler may have a pin that is positionable to extend into the passageway to engage part of the output shaft to resist removal of the bit from the output shaft. The anchoring device may have a tube that is positionable to rest in slots between two lobes extending from a frame of the powerhead. A pintle assembly may pass through the tube and the lobes to rotatably mount the anchoring device on the frame. A toggle and a spring in the pintle assembly may keep the pintle assembly in position.