Piston Accumulator Cover Clamping via Housing Edge Deformation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of piston-type accumulators is hindered by the time-consuming and costly threaded connections used to secure the cover components, which also pose safety challenges due to the need for precise threading and additional safety measures.
Innovation Solution
A method where the cover component is clamped onto the free longitudinal edge of the accumulator housing, eliminating the need for screw connections and utilizing shaping tools with positioning bevels to secure the cover component in place, allowing for reliable fastening without the complexity and cost of traditional threaded connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded connections are used to secure the cover component, then the connection reliability is improved, but the production time and cost increase
Solution Approach 1:
The patent extracts and eliminates the threaded connection system from the accumulator assembly. Instead of using screws or threads to secure the cover component, the invention uses a deformation-based clamping mechanism where the housing edge is deformed to directly clamp the cover, removing the intermediate threading elements and reducing assembly steps
Solution Approach 2:
The patent replaces the mechanical threaded fastening system with a deformation-based clamping system. The free longitudinal edge of the housing is deformed (bent or folded) to create a clamping action that secures the cover component, substituting complex mechanical threading with a simpler deformation mechanism
2Strength
If threaded connections are used to secure the cover component, then the connection strength is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent removes the threading system from the manufacturing process, eliminating the need for thread cutting, threading operations, and associated tooling. The cover component is secured through direct deformation of the housing edge, simplifying the manufacturing workflow
Solution Approach 2:
The patent changes the physical state and geometry of the free longitudinal edge through deformation. The edge is bent or folded to create a clamping geometry that provides secure attachment without requiring threaded features, changing the structural parameters of the housing to achieve the fastening function
3Reliability
If threaded connections are used to secure the cover component, then the safety measures are improved, but the production cost increases
Solution Approach 1:
The patent employs a cost-effective deformation-based clamping solution that eliminates expensive threading operations and associated safety components. The deformation process creates a secure, permanent attachment that reduces the need for additional safety measures and expensive fastening hardware
Data Source
AI summary
A method produces piston-type accumulators, including an accumulator housing (10) and a separating piston, which can be displaced in a longitudinal direction inside the accumulator housing (10) and separates two working spaces located in the housing. One end face of the accumulator housing is sealed by cover part (20). The cover part (20) is fixed on one side (40) via the free longitudinal edge (32) of the accumulator housing (10). The edge is displaced towards the cover part (20), such that a functionally and positionally secure connection of a cover part is ensured within the housing of a piston-type accumulator without using standard threaded connections.