Broadcast Spreader Feed Rate and Spinner Speed Control
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Solution Overview
Problem
Existing material spreaders lack efficient control over the feed rate and spinner speed for granular materials of varying sizes, leading to inconsistent distribution and potential overdispersion of seeds or fertilizers.
Innovation Solution
A broadcast spreader with a rotatable feed rate actuator and spinner speed control, allowing manual adjustment of the feed rate and spinner speed, equipped with a harness for user portability and a motorized spinner for efficient material distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of feed rate and spinner speed is implemented, then control precision over material distribution is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic adjustability by making the feed rate control mechanism and spinner speed control mechanism capable of being adjusted during operation. The feed rate control mechanism includes an adjustable feed rate control member that can be positioned at different locations along the feed mechanism, and the spinner speed control mechanism includes an adjustable spinner speed control member that can be positioned at different locations along the spinner assembly. This dynamic adjustment capability allows the spreader to adapt to different granular materials and spreading requirements, resolving the contradiction between control precision and device complexity.
2Measurement precision
If separate actuators for on/off control and speed control are used, then operational control precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent combines the on/off control function and speed control function into a single integrated control mechanism. The control mechanism includes a control member that can be positioned in multiple positions: an off position where material flow is stopped, an on position where material flow is enabled, and intermediate positions that control the spreading rate. This merging of functions into a single control interface improves ease of operation while maintaining precise control over material distribution, resolving the contradiction between operational control precision and ease of operation.
Data Source
AI summary
A broadcast spreader, components thereof, and associated methods. The broadcast spreader includes a hopper, a spinner, a motor for turning the spinner, and a material feeder configured to feed granular material from the hopper to the spinner. The broadcast spreader includes a material feeder adjustment actuator, a spinner speed control actuator, and a motor on/off actuator. A harness wearable by a person is configured to carry the broadcast spreader. A kit of interchangeable battery adaptors enables use of different brands or models of batteries.