Battery-Powered Core Drill Feed Unit for Reduced Cabling
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Solution Overview
Problem
Existing core drilling systems face energy and power reduction issues due to the feed device drawing energy from the same line as the core drilling device, requiring a transformer, and necessitating extensive cabling and space for residual current circuit breakers, which complicates operations and increases device size.
Innovation Solution
A feed device with a motor and motor controller powered by a battery or accumulator for autonomous energy supply, eliminating the need for a residual current circuit breaker and transformer, allowing for reduced cabling and a more compact design, and enabling wireless communication with the core drilling device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the feed device draws energy from the same power supply line as the core drilling device, then the system can be operated with standard electrical infrastructure, but the power available to the core drilling device is reduced
Solution Approach 1:
The patent divides the power supply system into two independent segments: the core drilling device remains connected to the mains power supply, while the feed device operates autonomously on a separate battery power supply. This segmentation eliminates power competition between the two devices, ensuring the core drilling device receives full mains power while the feed device has its own dedicated energy source.
2Ease of operation
If a transformer is used to make electrical energy usable for the device, then the system can operate with standard voltage levels, but the device size and complexity increase
Solution Approach 1:
The patent extracts the transformer and residual current circuit breaker from the feed device by powering it with a battery instead of mains electricity. This removal eliminates the need for voltage transformation and galvanic isolation, significantly reducing the feed device's internal complexity and component count while maintaining full voltage compatibility through the battery's native output voltage.
3Power
If extensive cabling is used to connect the feed device and core drilling device, then sufficient power can be transmitted, but the amount of cabling and installation space required increases
Solution Approach 1:
The patent extracts the power transmission function from the cabling system by providing the feed device with an autonomous battery power supply. This eliminates the need for heavy-gauge power cables between the feed device and core drilling device, reducing cabling requirements to only control and signal connections, thereby minimizing installation space and cable management complexity.
4Reliability
If a residual current circuit breaker is installed in the feed device, then safety protection is provided, but the device size and installation space requirements increase
Solution Approach 1:
The patent removes the residual current circuit breaker from the feed device by switching to battery power supply. Since batteries provide inherently safe low-voltage direct current without the hazards of mains electricity, galvanic isolation and residual current protection are no longer required, significantly reducing the feed device's internal space requirements and component complexity.
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
This solution ensures full power availability for the core drilling device, reduces cabling and device size, enhances safety by minimizing electrical hazards, and allows for quick response to power failures, while simplifying system handling and reducing heat generation.
Implementation Method 1
the feed device (1) comprises at least one battery (5) and/or at least one accumulator (5) for energy supply
Data Source
Figure 1
AI summary
The present invention relates to a feed device (1) for a core drilling machine (2), wherein the feed device comprises a motor (3) and a motor control unit (4). The feed device is characterized in that it includes at least one battery (5) and/or at least one accumulator (5) for power supply. In a further aspect, the invention relates to a system comprising a proposed feed device and a core drilling machine.