Blowing-Suction Machine Shredder Mechanism for Rigid Object Handling
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Solution Overview
Problem
Conventional blowing-suction machines cannot handle rigid or sharp objects, as they can damage the collecting bag or blades, limiting their ability to effectively shred and collect fallen leaves.
Innovation Solution
A blowing-suction machine with a shredder mechanism that includes blades and a cutting assembly, featuring a secondary cutter and cutter arranged in a cutting area, which cooperates with centrifugal motion to shred fallen leaves, allowing for the collection and separation of leaves from air using a filtering unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional blowing-suction machines use only blades for shredding, then the structure is simple, but rigid or sharp objects can damage the collecting bag or blades
Solution Approach 1:
The shredder mechanism is segmented into two distinct functional components: blades for initial shredding and a cutting assembly with cutter and secondary cutter for secondary processing. This segmentation allows each component to handle specific types of debris appropriately, with the cutting assembly specifically designed to handle rigid or sharp objects that might damage the collecting bag.
Solution Approach 2:
The cutting assembly acts as an intermediary between the blades and the collecting bag. It provides an additional layer of processing that intercepts rigid or sharp objects before they can reach and damage the collecting bag, while the blades continue to perform their shredding function.
2Adaptability or versatility
If a cutting assembly with cutter and secondary cutter is added, then rigid or sharp objects can be handled safely, but the device complexity increases
Solution Approach 1:
The shredder mechanism is designed with multi-functionality to handle various types of debris effectively. The blades perform primary shredding of soft materials like leaves, while the cutting assembly with cutter and secondary cutter handles rigid or sharp objects. This universal design allows the blowing-suction machine to process diverse materials without requiring separate devices.
3Ease of repair
If the cutter is removably fixed at the front end of the output shaft, then maintenance and replacement are easier, but the assembly process becomes more complex
Solution Approach 1:
The cutter is designed with removable fixation at the front end of the output shaft, transitioning from a static fixed connection to a dynamic removable connection. This allows the cutter to be easily removed for maintenance or replacement when needed, while remaining securely fixed during normal operation. The removable design enables flexible maintenance schedules and reduces downtime for repairs.
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
Effectively shreds fallen leaves and separates them from air, increasing the collection efficiency while preventing damage from rigid or sharp objects, and simplifying the assembly and disassembly process.
Implementation Method 1
the blades are driven by the motor to carry out blowing-out and blowing-in operation, and shredding operation
Implementation Method 2
the collecting cartridge accommodates a filtering unit that is arranged at a rear end of the collecting cartridge for separating fallen leaves from air
Data Source
AI summary
A blowing-suction machine includes a casing, a suction duct arranged at the front portion of the casing. It further includes a motor and a shredder mechanism that are arranged in the casing in order from rear to front. The front end of the shredder mechanism is connected to the rear end of the suction duct. The shredder mechanism includes blades and a cutting assembly that are arranged in order from rear to front. The blades are arranged on an output shaft of the motor. The cutting assembly is arranged at a rear end of the suction duct for shredding fallen leaves. The cutter cooperates with the secondary cutter such that fallen leaves and rigid trashes can be effectively shredded by the blowing-suction machine. Fallen leaves can be effectively separated from air via the collecting cartridge and the filtering unit, such that the amount of the collected leaves is effectively increased.