Driving Device Energy Transmission Flywheel Storage
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Solution Overview
Problem
Existing fastener driving devices have limitations in the energy they can impart, restricting their use for various fastening elements and substrates due to an upper energy limit, and they often rely on spring mechanisms that provide energy abruptly, which is not universally applicable.
Innovation Solution
A device with an energy transmission element that can move between initial and setting positions, utilizing a mechanical energy store to temporarily store energy from an electrical source, such as a battery, and then suddenly release it to the fastening element, allowing for adjustable energy delivery without moving the energy transmission element into the setting position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a spring mechanism is used to store and release energy abruptly, then energy can be delivered quickly to the fastening element, but the energy delivery is limited to a fixed upper limit and cannot be adjusted for different fastening elements and substrates
Solution Approach 1:
The patent replaces the fixed spring mechanism with a dynamic system comprising an electrical energy store (battery), a motor, and a mechanical energy store (flywheel). This allows the energy delivery characteristics to be dynamically adjusted by controlling motor operation parameters such as voltage, current, and rotation speed, enabling adaptation to different fastening elements and substrate conditions while maintaining high power delivery capability
Solution Approach 2:
The system enables parameter changes by varying the electrical input to the motor (voltage, current) and the mechanical parameters of the flywheel (moment of inertia, rotation speed). These parameter adjustments allow the energy delivery profile to be optimized for different applications, resolving the contradiction between fixed energy limits and adaptability requirements
2Use of energy by moving object
If the mechanical energy store is discharged by moving the energy transmission element into the setting position, then energy is transferred to the fastening element, but the energy transmission element must be physically repositioned each time, which limits rapid energy storage and release cycles
Solution Approach 1:
The system performs preliminary action by pre-charging the mechanical energy store (flywheel) to the required energy level before the driving operation is needed. The flywheel can be accelerated to store energy in advance, and this stored energy is then rapidly transferred to the fastening element without requiring physical repositioning of energy transmission components during the energy transfer cycle, thereby increasing productivity
Solution Approach 2:
The patent replaces the purely mechanical spring-based energy storage and release mechanism with a hybrid system combining electrical energy storage (battery), electromechanical conversion (motor), and mechanical energy storage (flywheel). This substitution eliminates the need for physical repositioning of energy transmission elements during each cycle, as energy can be rapidly transferred through the already-positioned drive mechanism, significantly improving cycle speed and productivity
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 enables the device to deliver sufficient energy to fastening elements, overcoming the energy limitations of traditional devices and allowing for more versatile use across different fastening elements and substrates by storing and releasing energy efficiently.
Implementation Method 1
a mechanical energy store (1010) for temporarily storing energy
Implementation Method 2
an energy transmission device for transferring energy from an energy source to the mechanical energy store
Implementation Method 3
a force transmission device for transmitting a force from the energy store to the energy transmission element
Implementation Method 4
a motor with a motor output, the energy transmission device comprising a movement converter for converting a rotary movement into a linear movement
Data Source
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AI summary
The device has a mechanical energy storage i.e. helical spring, for storage of mechanical energy. An energy transmission unit i.e. piston, transfers energy from an energy source of the mechanical energy storage. The energy transmission unit comprises a rotating element that is rotatable around a rotary axis. A retaining element (450) is arranged against the rotating element. The retaining element exerts retaining force on the rotating element for retaining the rotating element against rotation.