Nailing Apparatus Eccentric Spring Energy Storage
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Solution Overview
Problem
Current electric nail guns face issues with large friction loss, insufficient energy, low energy efficiency, and poor nailing effect due to complex mechanisms and limited energy storage, which affect their usability and portability.
Innovation Solution
A nailing device with an energy storage mechanism driven by a motor and decelerator, featuring an eccentric component and linear moving component, which reduces friction loss through a rolling bearing and one-way clutch, enabling efficient energy storage and rapid energy release for improved nailing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a compressed air mechanism (pre-compression high-pressure mechanism) is used for energy storage, then the nailing effect is improved, but the sealing problem arises and seal life is reduced
Solution Approach 1:
The patent replaces the compressed air mechanism with a spring mechanism for energy storage. The spring mechanism eliminates the sealing problems inherent in compressed air systems while still providing the necessary nailing effect through elastic energy storage and release.
Solution Approach 2:
The patent changes the energy storage parameter from compressed air pressure to spring elastic potential energy. This parameter change fundamentally alters the system, eliminating the need for seals while maintaining the ability to store and release energy for nailing operations.
2Use of energy by moving object
If a flywheel mechanism is used for energy storage, then the device can store energy, but the mechanism becomes complicated and energy capacity is limited
Solution Approach 1:
The patent extracts the essential energy storage function from the complex flywheel mechanism and implements it through a simpler spring mechanism. This extraction maintains the core functionality while dramatically reducing mechanical complexity and enabling higher energy capacity.
Solution Approach 2:
The patent substitutes the flywheel rotational energy storage system with a spring elastic energy storage system. This substitution simplifies the mechanism while increasing the practical energy capacity and reducing the complexity of the energy storage subsystem.
3Device complexity
If a spring mechanism is used for energy storage, then the structure is simple, but the nailing effect is poor
Solution Approach 1:
The patent introduces a dynamic lever arm mechanism that converts the spring's linear elastic force into the high-velocity impact needed for effective nailing. The lever arm rotates during the nailing cycle, creating the necessary mechanical advantage and impact force while maintaining overall system simplicity.
Solution Approach 2:
The patent employs a curved lever arm path that converts the linear spring force into rotational motion. This curved motion path enables the simple spring mechanism to generate the high-velocity impact required for good nailing effect, bridging the gap between simplicity and performance.
4Use of energy by moving object
If electromagnetic coil driving is used, then the nail gun can be powered electrically, but the driving force is insufficient for actual engineering needs
Solution Approach 1:
The patent uses the electrical motor to perform preliminary action by charging the spring mechanism with elastic potential energy. This stored energy is then released in a rapid, high-force impact that far exceeds the direct driving force of the electromagnetic coil, enabling the nail gun to meet engineering requirements.
Solution Approach 2:
The patent introduces a dynamic spring charging and discharging cycle that amplifies the electrical driving force. The motor provides continuous force to charge the spring, which then releases this energy in a rapid, high-impact stroke, dynamically increasing the effective driving force beyond what the motor could provide directly.
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 achieves high energy efficiency, reduced driving force, and increased nailing capacity per battery charge, enhancing the nailing effect and portability of the device.
Implementation Method 1
an eccentric component connected to the power component, and a linear moving component connected to the eccentric component... the power component drives the eccentric component to rotate, so as to drive the linear moving component to move linearly
Implementation Method 2
reduces friction loss through a rolling bearing
Implementation Method 3
one-way clutch
Implementation Method 4
a decelerator mounted on an output shaft of the driving motor
Data Source
AI summary
A nailing apparatus, comprising: a support mechanism, and an energy storage mechanism and an energy storage driving mechanism both provided in the support mechanism, wherein the energy storage driving mechanism comprises a power component, an eccentric component connected to the power component and a linear movement component connected to the eccentric component, and the power component comprises a driving electric motor and a step-down gear installed on an output shaft of the driving electric motor; a nailing driving mechanism, wherein the energy storage driving mechanism drives the nailing driving mechanism to hammer nail to drive the nail into a base material.