Pressure-Controlled Grease Pump With Real-Time Motor Speed Feedback
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Solution Overview
Problem
Existing mobile lubrication systems face challenges in efficiently and safely lubricating different lubrication targets that require varying pressures and generate different back pressures, risking damage due to improper pressure regulation.
Innovation Solution
A mobile lubrication pump system with a data processing unit (DPU) that regulates motor speed based on real-time pressure monitoring and user input, adjusting motor speed and torque to match the specific lubrication target's requirements, ensuring efficient and safe lubrication by minimizing pressure differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the lubrication pressure is increased to ensure efficient lubrication of high-pressure targets, then the lubrication efficiency is improved, but the risk of damaging low-pressure targets increases
Solution Approach 1:
The motor speed is made dynamically adjustable based on real-time pressure feedback. The system continuously monitors pressure and adjusts motor speed to maintain optimal operating conditions, transitioning from static fixed-speed operation to dynamic variable-speed control that adapts to different lubrication targets and pressure conditions.
Solution Approach 2:
A pressure feedback mechanism is implemented where pressure is monitored in real-time and this information is used to regulate motor speed. The feedback loop enables the system to respond to pressure changes and adjust operation accordingly, preventing both overpressurization and underpressurization conditions.
2Productivity
If the motor speed is increased to improve pump capacity, then the productivity is improved, but the risk of overpressure and pump overload increases
Solution Approach 1:
Pressure feedback is used to regulate motor speed and prevent overpressure conditions. The system monitors pressure continuously and adjusts motor speed downward when pressure approaches dangerous levels, maintaining pump capacity while ensuring safe operation within pressure limits.
Solution Approach 2:
The system changes operating parameters (motor speed, torque) based on pressure conditions. By dynamically adjusting these parameters, the system optimizes pump capacity while maintaining operation within safe pressure and load limits, preventing both overpressure and pump overload.
3Reliability
If the lubrication pressure is decreased to protect low-pressure targets, then the safety is improved, but the lubrication efficiency for high-pressure targets deteriorates
Solution Approach 1:
The system dynamically adjusts pressure and motor speed to match the specific requirements of each lubrication target. Rather than using a fixed conservative pressure setting, the system adapts in real-time to provide high pressure when needed for efficient lubrication while maintaining safety through continuous monitoring and adjustment.
Solution Approach 2:
Operating parameters are changed based on target requirements and pressure conditions. The system can operate at high pressure for targets that require it while maintaining safety through feedback control, optimizing both safety and lubrication efficiency for different targets.
4Ease of operation
If a fixed motor speed is used to simplify operation, then the ease of operation is improved, but the ability to adapt to different lubrication targets deteriorates
Solution Approach 1:
The system performs self-regulation by automatically adjusting motor speed based on pressure feedback and target requirements. This eliminates the need for manual speed adjustment while maintaining adaptability, allowing the system to serve different lubrication targets effectively without increasing operational complexity.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
The invention regards a mobile lubrication pump, comprising: - a motor for driving the pump for producing a pump pressure, - a pressure monitor for measuring the pump pressure, - a motor controller for regulating the operation of the motor, - a data processing unit (DPU) for communicating with the motor controller, and for receiving: 1) input from the pressure monitor, and 2) user input related to: pump capacity and/or lubrication target, and wherein the data processing unit is configured to determine and communicate a motor speed and/or motor torque to the motor controller based on the received input 1) and 2).