Rock Demolition Tool With Scoring And Compression Mechanism
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Solution Overview
Problem
Existing rock demolition methods, such as blasting and hydraulic hammers, are limited by high vibration and uncontrolled fragment creation, making them inefficient and environmentally impactful, while excavator-mounted cutters are only effective for soft to medium-hard rocks.
Innovation Solution
A demolition tool and method involving the creation of parallel slots in the rock, with a scoring tool to create a controlled breaking point and a compressive force applied to break the rock between the slots, allowing for controlled fragment size and reduced vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If blasting is used for rock demolition, then productivity is improved, but harmful factors increase due to vibrations and safety risks
Solution Approach 1:
The rock mass is segmented by creating multiple parallel slots that divide the rock into manageable sections. These slots are machined to predetermined depths and spacing, allowing the rock to be broken into controlled fragments without the need for explosive blasting, thereby maintaining productivity while eliminating vibrations and safety risks associated with blasting operations.
Solution Approach 2:
The slots are machined into the rock before the breaking operation. This preliminary action of creating slots and scoring the rock surface prepares the rock structure in advance, making it ready for controlled breaking by applying force at specific points, thus enabling efficient demolition without harmful blasting effects.
2Object-affected harmful factors
If hydraulic hammers are used for rock demolition, then harmful factors are reduced, but productivity deteriorates due to uncontrolled fragment size
Solution Approach 1:
The rock is segmented into controlled fragments by machining parallel slots at predetermined depths and spacing. This segmentation allows the rock to be broken into uniform pieces that are appropriately sized for direct feeding into crushers, eliminating the need for secondary crushing operations and significantly improving productivity while maintaining the low environmental impact of hydraulic hammer operations.
Solution Approach 2:
The slot depth, spacing, and scoring depth are carefully controlled parameters that determine the final fragment size. By adjusting these parameters, the system produces consistently sized rock fragments that match crusher requirements, transforming the uncontrolled breaking process into a precise operation that maintains both low environmental impact and high productivity.
3Object-affected harmful factors
If excavator-mounted milling attachments are used, then harmful factors are reduced, but productivity is limited by rock strength
Solution Approach 1:
The milling attachment creates parallel slots that segment the rock mass. This segmentation weakens the rock structure by creating planes of separation, allowing the subsequent breaking operation to process harder rocks more effectively. The slots are machined to depths and spacing that optimize the breaking process for various rock strengths, extending the applicability beyond soft and medium-hard rocks to include harder rock types.
Solution Approach 2:
The slots are machined into the rock before breaking, creating a prepared structure that is more susceptible to controlled breaking. This preliminary action of slot creation and surface scoring enables the system to handle harder rocks by pre-weakening the rock mass, thereby overcoming the productivity limitations of direct milling on hard rock while maintaining low environmental impact.
4Manufacturing precision
If slots are machined with predetermined depth and spacing, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The demolition tool is designed as a multi-functional device that combines slot machining capabilities with breaking functionality. The tool can machine slots at predetermined depths and spacing while also performing the breaking operation, eliminating the need for separate equipment and reducing overall system complexity despite the precision requirements for slot geometry control.
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
Enables efficient breaking of larger rock quantities with controlled fragment size and smooth fracture surfaces, reducing environmental impact and vibration compared to traditional methods.
Implementation Method 1
A scoring tool (05) arranged at its first end (03) is used to create a score in a first section (14) of a slot wall
Implementation Method 2
The second end region (04) of the base body (02) is designed to exert a compressive force on a second wall section (17) of the slot
Data Source
Figure 1~2
Figure 3~6
Figure 7~8
AI summary
The present invention relates to a demolition tool (01) for demolishing rock (09). Slots (08) of a predetermined depth and a predetermined distance from one another are cut into the rock (09). The demolition tool (01) can be inserted into one of the slots (08) to break the rock (09) between the slots (08). The demolition tool (01) comprises a base body (02) with a first end region (03) having at least one scoring tool (05) for cutting a score parallel to a bottom (15) of the slot (08) into a first wall section (14) of the slot (08) extending from the bottom (15) of the slot (08), and a second end region (04) for exerting a compressive force on a second wall section (17) of the slot (08) extending from a beginning of the slot (08).At the second end area (04) a mounting bracket (07) is firmly connected to the base body (02) for mounting the demolition tool (01) to a movable support arm of a construction machine (12).