Core Saw Sub-Frame Dynamics and Bearing Lock

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing core saw systems face challenges in efficiently maneuvering and stabilizing the core saw during operation, particularly in moving the saw vertically and laterally to accommodate different cutting depths and orientations, while maintaining stability and preventing movement during cutting processes.

Innovation Solution

A wheeled vehicle and core saw system with a chassis, sub-frames, and a mechanical actuator that allows vertical movement of the core saw, along with a selectively engageable bearing and lock mechanism, enabling movement in forward, rearward, and side directions, and a water conduit system for cooling and dust suppression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the core saw is made large to cut earthen cores, then the cutting capability is improved, but the maneuverability and ease of movement deteriorates

Engineering Contradiction:
Improvecutting capabilityVSAvoidmaneuverability
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The core saw system is divided into multiple sub-frames (first sub-frame, second sub-frame) that can move independently relative to each other. This segmentation allows the large core saw to be broken into manageable sections that can be maneuvered separately, improving ease of operation while maintaining the overall cutting capability of the complete system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic movement capabilities between sub-frames, allowing the first sub-frame to move vertically relative to the second sub-frame, and the second sub-frame to move horizontally relative to the chassis frame. This dynamic configuration enables the large core saw to adapt its position and orientation during operation, significantly improving maneuverability without reducing cutting capability.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the core saw is made movable to accommodate different cutting depths and orientations, then the adaptability is improved, but the stability during cutting deteriorates

Engineering Contradiction:
Improvecutting depth and orientation adjustmentVSAvoidstability during cutting
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The system employs controlled dynamic movement between sub-frames, where the first sub-frame can move vertically and the second sub-frame can move horizontally along guided paths. This controlled dynamics allows the core saw to achieve various cutting depths and orientations while maintaining stability through guided motion constraints that prevent uncontrolled movement during cutting operations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces intermediate sub-frames that act as mediators between the chassis frame and the core saw. These sub-frames provide controlled movement interfaces with bearings and guides, allowing the core saw to adjust its position and orientation while maintaining stability during cutting by distributing and controlling the movement through intermediate structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If a rigid connection is used between sub-frames to maintain stability, then the stability is improved, but the ease of maneuvering and positioning deteriorates

Engineering Contradiction:
ImprovestabilityVSAvoidease of maneuvering
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

Instead of rigid connections, the patent employs dynamic connections between sub-frames that allow controlled movement. The first sub-frame can move vertically relative to the second sub-frame, and the second sub-frame can move horizontally relative to the chassis frame. This dynamic connection system provides both stability during operation and ease of maneuvering during positioning.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the connection parameters between sub-frames from fixed rigid connections to controlled movable connections. By allowing controlled movement parameters between sub-frames, the system achieves both stability during cutting operations and ease of maneuvering during setup and repositioning.

Inventive Principle:
Principle #35Parameter changes

4Adaptability or versatility

If multiple sub-frames with movement capabilities are used, then the adaptability and maneuverability are improved, but the device complexity increases

Engineering Contradiction:
Improvemovement capabilityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The complex movement system is segmented into separate, independent sub-frames with individual movement capabilities. The first sub-frame handles vertical movement, while the second sub-frame handles horizontal movement. This segmentation of the complex system into manageable modules reduces overall device complexity by making each component simpler and more specialized.

Inventive Principle:
Principle #1Segmentation

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 system enhances operational flexibility and stability by allowing precise vertical and lateral movement of the core saw, improving cutting efficiency and safety by maintaining the saw's position during operation and facilitating effective water application for cooling and dust control.

Implementation Method 1

The bearing facilitates movement between the second sub-frame and the chassis frame in at least one of substantially the forward and rearward directions and substantially the side directions

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

Water is often directed to the cutting surface while the core saw blade is in use, to remove heat from the blade and suppress dust

Methodology Applied
Scientific EffectCooling: Cooling

Implementation Method 3

A mechanical actuator is operably attached between the first sub-frame and the second sub-frame so that actuation of the mechanical actuator moves the first sub-frame vertically with respect to the second sub-frame

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS10876366B2Core saw and support frame structure
Publication Date: 2020.12.29 VERMEER MFG CO
  • US10876366B2 patent drawing
  • US10876366B2 patent drawing
  • US10876366B2 patent drawing

AI summary

A wheeled vehicle and core saw system has a chassis, a first sub-frame, a core saw attached to the first sub-frame, and a second sub-frame attached to the chassis frame and attached to the first sub-frame. A selectively engageable bearing may be disposed between the second sub-frame and the chassis frame that facilitates movement between the second sub-frame and the chassis frame. The second sub-frame may be moveable with respect to the chassis frame and a water tank.