Drill Attachment Non-Cylindrical Shaft Auger Drive
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Solution Overview
Problem
Conventional auger assemblies lack efficient and versatile attachments for power drills, leading to undesirable rotation and limited functionality when used with various materials like particulate materials, grains, and ice particles.
Innovation Solution
A drill assembly attachment featuring a handle, drill mount, and throttle system that includes a chuck for secure connection to augers or other devices, with a non-cylindrical input shaft to prevent slippage and an adjustable throttle for controlled operation, allowing for effective engagement with different types of materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard keyless or keyed chuck is used to connect the drill assembly to the auger, then the connection is simple and easy to manufacture, but undesirable rotation and slippage occur between the drill assembly and the auger shaft
Solution Approach 1:
The input shaft is provided with a non-cylindrical portion (hexagonal, square, or octagonal cross-section) that asymmetrically engages with the chuck jaws. This asymmetric geometry prevents rotational slippage by creating mechanical interlocking surfaces that cannot rotate relative to each other, thereby eliminating the undesirable rotation problem while maintaining connection reliability.
2Productivity
If conventional auger assemblies are manually rotated or used with basic power transmission, then the device complexity is low, but the productivity and operational efficiency are insufficient for handling diverse materials
Solution Approach 1:
The drive assembly is designed as a universal attachment that can be connected to standard power drill assemblies and adaptively engage with various auger shaft configurations. The mounting member can accommodate different shaft types and sizes, allowing a single drive assembly design to handle diverse materials (particulate materials, grains, ice particles) through different auger attachments, thereby achieving multi-functionality and high productivity without requiring multiple specialized devices.
3Ease of operation
If the throttle is fixed in position relative to the handle, then the device complexity is reduced, but the ease of operation and control are compromised
Solution Approach 1:
The throttle is mounted on the handle in a movable rather than fixed manner, allowing it to move relative to the handle during operation. This dynamic mounting enables the throttle to be positioned optimally for user comfort and control accessibility while maintaining electrical connection functionality, thereby improving ease of operation without requiring complex adjustment mechanisms.
Data Source
AI summary
Disclosed are drill assembly attachments having a handle, a drill mount, and a throttle. The throttle is positioned with respect to the drill mount and the handle such that a first portion may be actuated by a user with a hand that is grasping the handle. The drill assembly attachment receives a power drill assembly such that the throttle adjustably engages a trigger of the drill assembly. The drill assembly attachment receives a rotatable device, such as an auger or other tool. Also disclosed is a method of using a power drill assembly and the drill assembly attachment.