Self-Powered Piston Acceleration Diagnostic System
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Solution Overview
Problem
Operators of reciprocating hammers lack reliable methods to determine when maintenance is needed and the optimal operating angle, leading to inefficient operation and increased costs due to reliance on feel or unsuitable maintenance schedules.
Innovation Solution
A diagnostic system integrated with the reciprocating hammer that uses electromagnetic induction to generate power for sensors, including an accelerometer, to measure piston acceleration and communicate wirelessly, providing real-time feedback on maintenance needs and optimal operating angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a separate power source is used for the diagnostic system, then the system can be charged during maintenance, but the duration of measurement capability is limited
Solution Approach 1:
The diagnostic system generates its own power through electromagnetic induction using the reciprocating motion of the piston. The magnet and conductor assembly converts mechanical energy from piston movement into electrical energy, eliminating the need for external power sources or batteries. This self-powered approach extends measurement duration indefinitely as long as the hammer operates, while reducing device complexity by removing separate power source components.
2Loss of information
If an indicator is placed on the hydraulic breaking apparatus, then maintenance needs can be visually indicated, but the indicator is difficult for the operator to see during operation
Solution Approach 1:
The patent replaces the mechanical visual indicator system with an electronic communication device that transmits diagnostic data wirelessly. The accelerometer and communication device send maintenance information to a remote display or mobile device, allowing operators to view maintenance status without being physically near the hammer during operation. This substitution resolves the visibility problem while maintaining accurate maintenance indication.
3Reliability
If maintenance is performed based on feel or expertise, then no additional equipment is needed, but the determination is unreliable
Solution Approach 1:
The diagnostic system is self-powered through electromagnetic induction, where the reciprocating piston moves a magnet relative to a conductor to generate electrical current. This current powers the accelerometer and communication device without external power sources. The system automatically measures piston acceleration and transmits maintenance data, providing reliable objective measurements without requiring complex external power infrastructure or manual assessment methods.
4Reliability
If a maintenance schedule is adhered to, then maintenance timing is standardized, but maintenance may be performed more or less often than necessary, increasing cost and reducing effectiveness
Solution Approach 1:
The diagnostic system continuously monitors piston acceleration and provides real-time feedback on hammer condition through wireless communication. This feedback mechanism allows operators to perform maintenance based on actual wear indicators rather than fixed schedules. The system detects when acceleration drops below thresholds indicating wear, triggering maintenance alerts that optimize timing to match actual need, thereby reducing unnecessary maintenance costs while maintaining operational effectiveness.
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 system enables accurate, real-time determination of maintenance requirements and optimal operation angles, reducing wear, preventing failures, and lowering maintenance costs by leveraging self-powered, wireless communication of acceleration data.
Implementation Method 1
a magnet configured to induce, via electromagnetic induction and based on the reciprocating movement of the piston, an electric current in a conductor
Data Source
AI summary
A diagnostic system for measuring acceleration of a piston of a reciprocating hammer is disclosed. The diagnostic system may include a magnet configured to induce, via electromagnetic induction and based on a movement of the piston, an electric current in a conductor. The diagnostic system may include a capacitor electrically coupled to the conductor and configured to store electric power based on the electric current induced by the magnet. The diagnostic system may include an accelerometer configured to measure an acceleration of the piston. The diagnostic system may include a communication device powered by the capacitor and configured to output a signal that identifies the acceleration measured by the accelerometer.