Grease Barrel Pump Auto-Shifting for Multi-Target Pressure Control
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Solution Overview
Problem
Conventional electric grease barrel pumps are limited in their ability to supply grease to multiple targets under different conditions, often leading to equipment contamination or failure due to inconsistent grease supply, as they require different mechanical structures for varying discharge pressures and amounts.
Innovation Solution
An electric grease barrel pump with an automatic shift function, featuring a single pumping structure, a distribution valve with a magnetic switch, and a control unit that adjusts the driving device's operation based on the valve's position, allowing for manual switching of the grease supply line to multiple targets and recovery of excess grease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different kinds of pumps with different mechanical structures are used to supply grease to multiple targets under different conditions, then the grease discharge amount and discharge pressure can be adjusted for each application, but the device complexity increases
Solution Approach 1:
The patent applies a single pump body that can supply grease to multiple targets (first and second grease supply targets) through a distribution valve system. The pump maintains one mechanical structure while achieving multi-functionality by controlling grease flow direction and pressure to different outlets, eliminating the need for multiple specialized pumps.
Solution Approach 2:
The patent uses a distribution valve with movable portions that can dynamically switch between different grease supply paths. The magnetic switch detects the position of movable portions and sends signals to the control unit, enabling dynamic adjustment of grease discharge characteristics without changing the pump's mechanical structure.
2Device complexity
If a single pumping structure is used to supply grease to multiple targets, then the device complexity is reduced, but the ability to adjust grease discharge amount and pressure for different applications is limited
Solution Approach 1:
The patent incorporates a magnetic switch that detects the position of movable portions in the distribution valve and provides feedback signals to the control unit. This feedback mechanism enables the control unit to adjust the driving device's operation to achieve appropriate grease discharge characteristics for different supply targets, maintaining versatility with a single pump structure.
Solution Approach 2:
The distribution valve acts as an intermediary between the single pump and multiple grease supply targets. It controls the direction and pressure of grease flow to different outlets, enabling a single pump to serve multiple functions with different discharge requirements.
3Reliability
If grease is supplied to equipment with mismatched discharge pressure and amount, then the equipment may be contaminated or burnt out, but using multiple specialized pumps increases operational complexity
Solution Approach 1:
The patent uses a check valve to prevent grease from flowing back toward the pump, and a relief valve to discharge excess grease when pressure exceeds a predetermined level. These preliminary protective actions ensure that equipment receives appropriate grease supply without over-pressurization or contamination, protecting equipment before damage can occur.
Solution Approach 2:
The relief valve automatically discharges excess grease when pressure exceeds the predetermined level, and the check valve automatically prevents backflow without requiring manual intervention. This self-service mechanism protects equipment from damage while maintaining operational simplicity.
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 and convenient supply of grease to multiple targets under different conditions, enhancing the structural efficiency and usability of the pump by automatically adjusting discharge capabilities based on user input.
Implementation Method 1
a magnetic switch installed at a movable portion of the distribution valve to output a signal for supplying the grease to a selected grease supply target of the plurality of grease supply targets according to an operating position of the movable portion
Data Source
AI summary
The present invention relates to an electric grease barrel pump that has a single pumping structure and has an automatic shift function performed by a manual operation of a valve for switching a grease supply line. The electric grease barrel pump comprises: a pumping means; a driving means; a supply pipe through which the grease is discharged from the pumping means; a distribution valve installed at an end of the supply pipe in a direction in which the grease is discharged; a magnetic switch, installed at a movable portion of the distribution valve, for outputting a signal for supplying the grease to a selected grease supply target of the plurality of grease supply targets according to an operating position of the movable portion; and a control unit for controlling the driving means to adjust grease discharge capability of the pumping means according to the signal of the magnetic switch.