Lifting Arm Pile Driver for Below Grade and Angled Operations
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Solution Overview
Problem
Conventional pile driving apparatus are limited in their ability to drive piles above or below grade, at an angle, or when encountering obstacles, and similar limitations apply to hole drilling equipment.
Innovation Solution
A self-propelled vehicle with a mounting platform and a lifting and positioning arm that rotates, pivots, and extends to position a pile driver or drill assembly at various heights and orientations, enabling versatile pile driving and drilling capabilities, including below grade and angled operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pile driving apparatus are used, then the structure is simple, but the adaptability is limited (cannot drive piles above grade, below grade, at angles, or when confronted by obstacles)
Solution Approach 1:
The lifting and positioning arm is designed to perform multiple functions: rotating about a vertical axis to position the pile driver radially, pivoting about a horizontal axis to adjust height above or below the platform, and extending/retracting to vary the distance from the platform. This multi-functional arm allows the apparatus to drive piles in various positions (above grade, below grade, at angles) without requiring multiple separate devices, thus improving adaptability while controlling overall system complexity.
Solution Approach 2:
The lifting and positioning arm incorporates dynamic movement capabilities with multiple degrees of freedom: rotation about a vertical axis, pivoting about a horizontal axis, and telescopic extension/retraction. These dynamic adjustments allow the pile driver to reach various positions and orientations adaptively, transforming a static simple structure into a dynamic versatile system that can respond to different working conditions.
2Adaptability or versatility
If a versatile lifting and positioning arm is added to enable above/below grade and angled pile driving, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The lifting and positioning arm is divided into segmented components that can rotate, pivot, and extend independently. The arm includes a mounting end connected to the platform and a remote end that positions the pile driver, with intermediate sections that can telescop and articulate. This segmentation allows each component to perform a specific function (rotation, pivoting, extension) while working together to achieve complex positioning, making the complicated mechanism more manageable and maintainable.
Solution Approach 2:
The lifting and positioning arm operates in multiple spatial dimensions: it rotates about a vertical axis (azimuthal dimension), pivots about a horizontal axis (elevation dimension), and extends/retracts radially (distance dimension). By utilizing three-dimensional movement capabilities, the arm achieves comprehensive positioning coverage for above-grade, below-grade, and angled pile driving operations, transforming a two-dimensional simple platform into a three-dimensional versatile working system.
Data Source
AI summary
An apparatus for driving piles or drilling holes includes a self propelled vehicle with a mounting platform supported by the vehicle. A lifting and positioning arm is provided having a mounting end and a remote end. The mounting end is mounted to the platform. The arm rotates about a vertical axis relative to the platform wherein the remote end of the arm is positioned in a selected radial orientation relative to the platform. The arm pivots about a substantially horizontal axis relative to the platform wherein the arm is moved up and down to position the remote end of the arm at a selected height above or below the platform. The arm extends and retracts wherein the remote end of the arm is positioned a selected distance from the platform. A pile driver or drill assembly is pivotally mounted to the remote end of the arm.