Impulse-Coupled Rotary Tool for High-Torque Material Removal
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Solution Overview
Problem
Existing rotary tools, such as powered impactor reamers, suffer from low output torque, inconsistent performance, and reliability issues, leading to inefficiencies in material removal and increased maintenance needs, particularly when encountering hard or dense materials.
Innovation Solution
A rotary tool design incorporating an energy storage element, a drive system with differential rotary components, an actuator system, and a coupling mechanism that transitions between coupled and decoupled states to deliver torque impulses, using mechanical interactions and non-physical interactions to manage reactionary torque.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If existing rotary tools are used, then they can perform basic cutting and drilling tasks, but they suffer from low output torque and inconsistent performance when encountering hard or dense materials
Solution Approach 1:
The patent implements periodic action through the alternating engagement and disengagement of the coupling mechanism. The energy storage element accumulates rotational energy during decoupled states and delivers torque impulses during coupled states, creating a periodic action pattern that provides high output torque while maintaining performance consistency when encountering hard or dense materials.
Solution Approach 2:
The patent applies dynamics by making the coupling mechanism transitionable between coupled and decoupled states. This dynamic configuration allows the system to adapt its torque delivery characteristics in real-time, enabling high torque output when needed while maintaining operational reliability through state transitions that prevent energy loss and inconsistency.
2Speed
If existing rotary tools operate continuously, then they can maintain rotation, but they generate excessive reactionary torque that increases mechanical wear and maintenance needs
Solution Approach 1:
The periodic action of alternating between coupled and decoupled states allows the energy storage element to accumulate rotational energy without transmitting continuous reactionary torque to the output element. This intermittent energy transfer maintains rotational speed while significantly reducing mechanical wear and maintenance requirements.
Solution Approach 2:
The patent extracts the energy storage element from continuous direct drive, allowing it to accumulate energy independently and deliver it in controlled impulses. This separation enables the output element to rotate at required speeds while the reactionary torque is absorbed and managed by the energy storage element during decoupled states, reducing harmful effects on the output mechanism.
3Force
If the coupling mechanism is engaged continuously, then torque can be transmitted continuously, but the energy storage element cannot accumulate sufficient rotational energy for high torque impulses
Solution Approach 1:
The periodic switching between coupled and decoupled states creates dedicated accumulation phases where the energy storage element can build up rotational energy without load, followed by impulse delivery phases. This temporal separation ensures sufficient energy accumulation time while maintaining high torque impulse capability.
Solution Approach 2:
The dynamic state transitions of the coupling mechanism allow the system to switch between energy accumulation mode (decoupled) and energy delivery mode (coupled). This dynamic configuration optimizes both the duration for energy accumulation and the magnitude of torque impulses, resolving the contradiction between continuous transmission and energy buildup.
4Productivity
If the rotary tool uses a simple direct drive system, then the device complexity is low, but the productivity and material removal efficiency are insufficient for hard or dense materials
Solution Approach 1:
The patent segments the drive system into distinct functional components: a drive system for imparting rotation, an energy storage element for energy accumulation, and a coupling mechanism for controlled engagement. This segmentation enables high productivity through torque impulses while keeping each component relatively simple, balancing material removal efficiency with manageable system complexity.
Solution Approach 2:
The dynamic coupling mechanism adds controlled complexity to enable high productivity. By allowing the system to transition between states, it provides the necessary torque impulses for efficient material removal of hard or dense materials, while the modular nature of the dynamic components keeps the overall system complexity manageable and maintainable.
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
Enhances torque delivery, improves reliability, and reduces mechanical wear, resulting in improved material removal efficiency and reduced operator fatigue, with enhanced durability and simplified maintenance.
Implementation Method 1
an energy storage element configured to accumulate rotational energy
Implementation Method 2
the energy storage element is configured to deliver a torque impulse to the output element
Data Source
AI summary
A rotary tool may include a drive system including a first rotary component and a second rotary component, an energy storage element, an actuator system including a first actuator element disposed on the first rotary component and a second actuator element disposed on the second rotary component, a coupling mechanism, and an output element. The coupling mechanism may be operable between coupled states and decoupled states. During operation, the energy storage element may accumulate rotational energy via the drive system and relative rotation between the first rotary component and the second rotary component may cause interactions between the first actuator element and the second actuator element. The interactions may transition the coupling mechanism between the coupled states and the decoupled states. When the coupling mechanism is in the coupled states, the energy storage element may be configured to deliver a torque impulse to the output element.