Pneumatic Device Vibration Damping via Resilient Impact Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pneumatic rust removing guns generate strong vibrations during use, causing discomfort to users, despite the limited effectiveness of shock absorption measures.
Innovation Solution
A pneumatic device with a casing unit, cylinder, hollow piston rod, impact unit, and resilient member, which allows for reciprocal movement between pneumatic and air discharging states to reduce vibration by effectively managing air flow and using a resilient member for impact, thereby minimizing user discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional pneumatic rust removing gun uses repetitive striking movements of the piston and impact block, then rust and scale removal effectiveness is improved, but strong vibration is generated causing user discomfort
Solution Approach 1:
The patent introduces a resilient member (spring) as an intermediary element between the impact block and the work surface. This spring absorbs and dampens the vibration generated during the striking movement, while still allowing the impact block to deliver effective blows to the work surface for rust and scale removal.
Solution Approach 2:
The resilient member is pre-installed in the impact unit to provide cushioning before the striking action occurs. This beforehand cushioning mechanism prepares the system to absorb vibrations during operation, reducing user discomfort while maintaining rust removal effectiveness.
2Object-affected harmful factors
If a rubber pad is added for shock absorption, then vibration is reduced, but the effect is limited and device complexity increases
Solution Approach 1:
The patent merges the shock absorption function with the existing impact unit structure by integrating the resilient member into the impact unit itself. This combination eliminates the need for separate vibration reduction components, reducing overall device complexity while maintaining effective vibration damping.
Solution Approach 2:
The resilient member serves multiple functions: it provides the restoring force for the impact block, acts as a vibration dampener, and serves as a cushioning element. This multi-functionality reduces the need for additional separate components, simplifying the overall device structure.
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 pneumatic device significantly reduces vibration during operation, providing a more comfortable user experience and improving the effectiveness of rust removal by leveraging the configuration of air passages and chambers.
Implementation Method 1
the air is allowed to travel from the second chamber into the releasing room and to be discharged out of the casing unit, so as to move the impact portion of the impact unit towards the casing unit by restoring action of the resilient member
Implementation Method 2
the cylinder and the piston rod are movable reciprocally relative to each other along the axis to change between a pneumatic state, where the air hole unit spatially communicates the inlet channel with the annular groove, and spatially communicates the annular groove with the communicating room and the second chamber, such that the air is allowed to travel from the inlet channel into the second chamber
Data Source
AI summary
A pneumatic device includes a casing unit defining a first chamber, a receiving space and a front space; a cylinder movably received in the receiving space, defining a second chamber and a releasing room, and having an air passage unit and an annular groove; and a hollow piston rod in sliding engagement with the cylinder, and having an inlet channel, a communicating room and an air hole unit. The cylinder and the piston rod are movable to change between a pneumatic state, where the air hole unit is communicated with the inlet channel, the annular groove, the communicating room and the second chamber, and an air discharging state, where the air passage unit is communicated with the second chamber, the receiving space and the releasing room.