Powder Spreader Housing with Segmented Motor Shield
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Solution Overview
Problem
Conventional powder/granular material spreaders face issues with cleaning the chute, as water or powdery material can reach the motor when trying to clean the inside, leading to increased electric consumption and maintenance challenges.
Innovation Solution
The powder/granular material spreader design includes a housing that shields the drivers from the passage section, allowing for easy cleaning without exposing them to water or fine particles, with integral walls and a cover that reduce the risk of water or material entering the housing, and a feeder with a roller that can be easily removed for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the motor is disposed inside the chute of the spreading section, then the structure is compact and easier to manufacture, but water or powdery granular material reaches the motor during cleaning, causing increased electric power consumption and maintenance issues
Solution Approach 1:
The chute is divided into two separate spaces: a first space for receiving granular material and a second space for housing the motor. This segmentation prevents water and material from the first space from reaching the motor in the second space, while maintaining a compact overall structure.
Solution Approach 2:
A partition wall acts as an intermediary barrier between the first space (containing granular material) and the second space (containing the motor). This partition wall prevents direct contact between water/material and the motor, allowing the motor to remain installed during cleaning operations.
2Reliability
If the motor is removed before cleaning the chute with water, then the motor is protected from water damage, but the cleaning process becomes more time-consuming and complex
Solution Approach 1:
The chute is segmented into a first space for material and a second space for the motor, allowing the motor to remain installed while the first space is cleaned with water, thus simplifying the cleaning process.
Solution Approach 2:
The partition wall serves as a protective intermediary that allows water to be sprayed into the first space for cleaning without the water reaching the motor in the second space, eliminating the need to remove the motor before cleaning.
3Productivity
If granular material accumulates near the rotor inside the chute, then the flowability decreases and electric power consumption increases, but frequent cleaning increases maintenance time and complexity
Solution Approach 1:
By segmenting the chute into accessible spaces, the design enables efficient cleaning operations that remove accumulated material, restoring flowability without increasing overall system complexity.
Solution Approach 2:
The partition wall design allows for targeted cleaning of the first space while protecting the motor, simplifying the cleaning operation and enabling frequent maintenance to preserve material flowability.
Data Source
AI summary
A powder/granular material spreader that allows easy cleaning of a passage for powder/granular material includes a housing that houses motors, a passage that extends through the housing and provides a passage for the powder/granular material, a roller provided in the passage to feed the powder/granular material and that is driven by one of the motors, and a spinner driven by the motor to spread the powder/granular material. The passage includes an integral first wall that shields the motor from the passage, an integral second wall that shields the motor from the passage, and an opening located at an inlet of the passage. The opening is integral with the first wall and the second wall. The housing includes an integral cover that covers tops and sides of the motors, and fits over an outer surface of the opening. A seal is provided at a location where the opening and the cover are connected with each other.