Auger Protection Spring-Loaded Switch
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Solution Overview
Problem
Existing auger protection systems for stirring machines are prone to mechanical failures due to bending or breaking, particularly under varying grain conditions, as they rely on complex mechanisms that are susceptible to dust accumulation and incorrect adjustments, failing to directly measure the force applied to the augers effectively.
Innovation Solution
An auger protection system that includes a spring-connected pivot assembly to measure resistance force, calculating the maximum allowable force based on auger characteristics, and using a switch housed in a pivotally attached structure to shut off a gear motor when this force is exceeded, thereby reducing stress on the augers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tilt switch is used to measure auger angle and control arcuate movement, then the system can prevent auger bending or breaking, but the system becomes complex with many moving parts that are easily subject to breakdown
Solution Approach 1:
The patent extracts the force measurement function from the complex tilt switch mechanism and implements it through a simple spring-loaded switch that directly measures the force on the auger. This removes the unnecessary mechanical complexity while retaining the protective function.
Solution Approach 2:
The patent replaces the mechanical tilt switch system with a spring-based force measurement system. The spring directly measures the force applied to the auger, eliminating the need for complex mechanical linkages, pivot points, and adjustment mechanisms.
2Adaptability or versatility
If a tilt switch is adjusted in the field depending on grain depth, type or quality, then the system can adapt to different conditions, but the system requires post-installation adjustments and is prone to incorrect settings
Solution Approach 1:
The spring-loaded switch automatically adapts to different grain conditions by directly measuring the force on the auger. The system requires no manual adjustment or calibration - the spring naturally responds to varying grain depths, types, and qualities through its mechanical properties.
Solution Approach 2:
The patent changes the measurement parameter from auger angle (tilt switch) to direct force measurement (spring-loaded switch). This parameter change enables automatic adaptation to different operating conditions without requiring adjustment, as the spring's force response naturally varies with grain conditions.
3Measurement precision
If the tilt switch measures angle relative to vertical, then the system can detect auger position, but the measured angle is not directly correlated to the stress in the down auger
Solution Approach 1:
The patent changes the measurement parameter from auger angle to direct force measurement. The spring-loaded switch measures the actual force or stress applied to the auger, providing direct correlation between the measurement and the stress condition, rather than inferring stress from angle.
Solution Approach 2:
The spring acts as an intermediary element that directly transmits the force from the auger to the switch mechanism. This intermediary provides a direct mechanical connection that measures force, eliminating the need to infer stress from angular position.
4Extent of automation
If complex switch mechanisms with multiple moving parts are used, then the system can control arcuate movement, but the parts are subject to breakdown due to accumulated dust, grime and bending
Solution Approach 1:
The patent extracts the essential control function from the complex mechanical system and implements it through a simple spring-loaded switch with minimal moving parts. This reduction in complexity eliminates the vulnerability to dust and grime accumulation while maintaining automatic control capability.
Solution Approach 2:
The spring-loaded switch uses simple, easily replaceable components that are resistant to dust and grime. The design accepts that parts may wear but uses inexpensive, maintenance-friendly components that can be quickly replaced if needed.
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 provides a low-maintenance, reliable protection against auger bending or breaking, allowing for consistent operation across different grain depths and qualities without the need for post-installation adjustments, by directly measuring and managing the force applied to the augers.
Implementation Method 1
a spring which is connected to a pivot assembly and which extends horizontally and comes in contact with the down auger at one end
Implementation Method 2
The force against the down auger is directly measured using a spring
Data Source
AI summary
An auger protection system used in a stirring system is disclosed. According to a first preferred embodiment, an auger protection system is provided which protects augers on a stirring machine from breaking or bending. Accordingly to this first preferred embodiment, the auger protection system includes a switch which is enclosed in a housing and connected to a timer which supplies power to a gear motor that propels the unit around a silo. Preferably, the housing for the holding switch is attached pivotally to the structure on which the down auger is connected. Additionally, the auger protection system preferably further includes a spring which is connected to a pivot assembly and which extends horizontally and comes in contact with the down auger at one end.