Hydraulic Cylinder Plug Connection for Automatic Linkage
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Solution Overview
Problem
The existing hydraulic cylinder arrangements for construction components require manual intervention for connection and disconnection, which is time-consuming and poses safety risks, especially in scenarios like deep drilling rigs where the cylinder needs to be retracted and reconnected, and is exposed to external vibrations and alignment issues.
Innovation Solution
A releasable plug connection between the linkage lug and the piston rod allows for automatic connection and disconnection without manual intervention, utilizing a sleeve-shaped receiving part and a bolt element with a locking mechanism and signaling means to secure the connection, enabling easy alignment and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanent arrangement of the hydraulic positioning cylinder is used between mast and carrier platform, then the mast can be firmly arranged on the carrier platform, but free access to the drill mast is restricted and the cylinder is exposed to external vibrations
Solution Approach 1:
The connection between the hydraulic cylinder and the mast is segmented into separable parts: a linkage lug on the mast and a corresponding connection element on the piston rod. This allows the cylinder to be disconnected from the mast when not in use, providing free access while maintaining firm connection during operation.
2Reliability
If manual intervention is used to connect and disconnect the hydraulic cylinder, then the connection can be secured, but the process is time-consuming and poses safety risks
Solution Approach 1:
The connection system is designed to automatically engage and disengage the piston rod with the linkage lug without requiring manual intervention. The self-service mechanism includes self-aligning features and automatic locking that secure the connection reliably while eliminating time-consuming manual operations and associated safety risks.
3Manufacturing precision
If the linkage lug is not in parallel alignment to the fork head on the mast, then connection is difficult, but manual correction is time-consuming and affects operational safety
Solution Approach 1:
The connection elements are designed with preliminary alignment features that automatically orient the piston rod and linkage lug into proper parallel alignment before engagement. This preliminary action eliminates the need for time-consuming manual correction and ensures accurate alignment for secure connection.
4Productivity
If the positioning cylinder remains in extended position during drilling, then the mast can be retracted, but the cylinder is exposed to external influences such as vibrations
Solution Approach 1:
The connection between the cylinder and mast is segmented to allow easy disconnection. After mast erection, the cylinder can be disconnected from the linkage lug and retracted, removing it from the drilling area and eliminating exposure to vibrations while maintaining the ability to reconnect for mast retraction operations.
Data Source
AI summary
Connecting arrangement for a hydraulic cylinder having a cylinder housing and an extendable piston rod, at the free end of which a linkage lug for connection to a construction component is arranged, characterized in that the linkage lug is connected to the piston rod via a plug connection.