Drive With Flywheel Impact Mechanism for Adherence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive systems with motors face challenges in generating sufficient force to move objects that are difficult to move, such as those stuck due to adherence, without requiring high motor power or complex control systems.
Innovation Solution
A drive system utilizing a flywheel mass connected to a motor with an impact stop, where the flywheel mass is abruptly decelerated to create a high impact force that moves the driven object, allowing a weak motor to efficiently move objects by leveraging the impact force, and an operating and control device to manage the motor's position and speed for effective operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a motor directly drives a difficult-to-move object, then the motor must be strong and expensive, but this increases device complexity and cost
Solution Approach 1:
The flywheel mass is accelerated in advance during a first phase, storing kinetic energy, and then this stored energy is released during a second phase to generate the high impact force needed to move the difficult-to-move object. This preliminary action allows a weak motor to achieve the effect of a strong motor.
Solution Approach 2:
The drive operates in periodic phases: a first phase where the flywheel mass is accelerated by the motor, and a second phase where the flywheel mass impacts the driven object. This periodic operation allows the motor to work at low power during acceleration and transfer stored energy during impact, eliminating the need for continuous high power.
2Speed
If the flywheel mass continuously drives the driven object, then the driven object moves smoothly, but the motor cannot build up sufficient speed for impact
Solution Approach 1:
The drive train is segmented into phases by the impact stop: a first phase where the flywheel mass accelerates freely without driving the load, and a second phase where impact transfers motion to the driven object. This segmentation allows high acceleration during phase one while maintaining productivity through repeated impact cycles.
Solution Approach 2:
The coupling between the flywheel mass and driven object is dynamic rather than continuous. The impact stop creates a variable coupling that engages only during impact events, allowing the flywheel to accelerate freely most of the time and transfer energy periodically, thus achieving both high speed buildup and continuous productivity.
3Force
If the motor operates at high power to overcome adherence, then the object can be loosened immediately, but energy expenditure and motor cost increase significantly
Solution Approach 1:
The motor builds up kinetic energy in the flywheel mass during a first phase at low power consumption. This preliminarily stored energy is then released during a second phase to generate the high impact force needed to overcome adherence, avoiding the need for continuous high power operation and significantly reducing energy expenditure.
Solution Approach 2:
The system changes the temporal distribution of power parameters: low motor power during the acceleration phase, followed by high impact force during the brief impact phase. This parameter transformation allows the same average energy input to produce much higher peak forces than continuous operation would allow.
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 movement of difficult-to-move objects with reduced motor and control electronics costs, effectively overcoming adherence by controlled impacts and minimizing energy expenditure, while maintaining continuous operation without significant delays.
Implementation Method 1
when the flywheel mass is abruptly decelerated at the impact stop, an impact force can be created which moves the driven object and may by far exceed the maximum force which the motor produces
Implementation Method 2
the flywheel mass is primarily formed by the mass of the rotor
Data Source
AI summary
A drive with a motor and devices for coupling the motor to a driving object. The coupling devices include a centrifugal mass which is movable by the motor, and an impact stop, which is connected to the driving object, for the centrifugal mass.