Multi-Post Frame Assembly for Skid Steer Core Drill Stability
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Solution Overview
Problem
Current hole coring devices for concrete and asphalt are unstable, prone to binding, and require multiple operators, leading to increased costs and reduced efficiency, especially when handling larger core bits.
Innovation Solution
A frame assembly with multiple supporting columns that attaches reversibly to a skid steer or front loader, providing stability and allowing single-user operation through a cable system and hydraulic system for efficient core drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-mast system with rollers or bushings is used to support the drum saw, then the device structure is simplified, but the stability deteriorates causing excessive movement and binding of the bit
Solution Approach 1:
The single mast structure is segmented into multiple independent vertical support members (first vertical support member and second vertical support member) that are spaced apart. Each support member independently guides the drum saw carriage, distributing the mechanical loads and preventing the excessive movement and binding that occurs with a single mast system.
Solution Approach 2:
The support structure transitions from a single vertical dimension (one mast) to a two-dimensional plane (multiple vertical members spaced apart). This dimensional expansion provides lateral stability while maintaining the vertical guidance function, preventing the carriage from shifting sideways during operation.
2Adaptability or versatility
If the length of the arm supporting the core bit is increased to accommodate larger core bits, then the capability to handle larger bits is improved, but the instability increases causing more wear and binding
Solution Approach 1:
The support structure is divided into multiple vertical support members that are spaced apart, creating a distributed support system. This segmentation provides multiple contact points for the drum saw carriage, reducing the lever arm effect and minimizing instability when handling larger core bits.
Solution Approach 2:
The multiple vertical support members act as counterbalancing elements that distribute the weight and mechanical stresses of larger core bits. By spreading the load across multiple support points rather than concentrating it on a single arm, the system maintains stability even when supporting heavier equipment.
3Reliability
If conventional hole coring devices are used, then the coring function is achieved, but multiple operators are required increasing operational costs and reducing efficiency
Solution Approach 1:
The drum saw carriage is equipped with self-adjusting features including automatic depth control and self-centering mechanisms that eliminate the need for multiple operators. The carriage automatically maintains proper alignment and depth during the coring operation, allowing a single operator to control the device while maintaining reliable coring function.
Solution Approach 2:
The device incorporates feedback mechanisms through the multiple vertical support members that continuously monitor and correct the position of the drum saw carriage. This real-time feedback system automatically adjusts for deviations, maintaining stable operation and eliminating the need for constant manual intervention by multiple operators.
4Reliability
If conventional coring devices are used, then coring operations can be performed, but the devices are highly susceptible to binding that interferes with performance and can damage the drum saw
Solution Approach 1:
The vertical support members are segmented and spaced apart to provide independent guidance for the drum saw carriage. This segmentation prevents the binding that occurs in single-mast systems by allowing each support member to independently accommodate thermal expansion, vibration, and material irregularities without transmitting binding forces to the entire structure.
Solution Approach 2:
Instead of having a single rigid mast that constrains the drum saw, the invention uses multiple independent vertical members that allow controlled movement. This inverted approach—providing flexibility rather than rigid constraint—prevents binding by allowing the system to adapt to operational conditions while maintaining guidance.
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
The solution enhances stability, reduces vibration and binding, allows for quicker hole drilling, extends the life of the drill, and reduces operational costs by enabling a single user to efficiently core holes with reduced wear on the equipment.
Implementation Method 1
a drum saw motor that transforms electrical energy to mechanical energy to rotate the drum saw
Implementation Method 2
a hydraulic system that transforms hydraulic energy to mechanical energy to raise and lower the drum saw
Data Source
AI summary
The present invention is an attachment that reversibly connects to a skid steer, front loader, or other heavy equipment. The attachment allows a user to quickly and efficiently core holes in concrete and asphalt. The attachment comprises a frame assembly that rests upon the surface of concrete being cored and a carriage assembly. The carriage assembly connects a drum saw to the frame assembly. The carriage assembly moves vertically up and down along the length of the frame assembly while coring a hole in concrete. The attachment includes two, three, and four-post embodiments. The three and four-post embodiments provide include a larger frame assembly that provides additional stability to the attachment while allowing the user to quickly reposition the attachment to core additional holes.