Modular Rotating Table for Excavator Configuration Conversion
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Solution Overview
Problem
The conversion of excavating machines between different pile excavation methods (LDP, CFA, and CSP) is costly and time-consuming due to the need for significant modifications and replacements of mechanical parts, including rotating tables and hydraulic systems, which affects operational efficiency and flexibility.
Innovation Solution
A modular assembly for handling excavating equipment that allows for reversible modification of the excavating configuration by using a single rotating table with interchangeable accessories, enabling the machine to adapt to different excavation methods without requiring extensive reconfiguration of the head or hydraulic systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional excavating machines are used with fixed configurations for specific pile excavation methods, then the machine can perform the excavation method efficiently, but the machine cannot be easily converted to other excavation methods without significant modifications and replacements
Solution Approach 1:
The patent applies universality by designing a single rotating table that can perform multiple functions for different excavation methods (LDP, CFA, CSP) through interchangeable accessories. The rotating table is equipped with multiple attachment points and can be configured with different tools (Kelly rods, propellers, pipes) to handle various pile excavation types, eliminating the need for separate dedicated rotating tables for each method.
Solution Approach 2:
The patent applies segmentation by dividing the excavating equipment into modular components that can be independently attached and detached from the rotating table. The equipment is segmented into accessories (Kelly rods, propellers, pipes) and a common rotating table platform, allowing easy reconfiguration by detaching current accessories and attaching different ones based on the required excavation method.
2Productivity
If multiple rotating tables and hydraulic systems are used to support different excavation methods, then each method can be performed with dedicated equipment, but the conversion time and cost increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-configuring the rotating table with multiple attachment points and mounting mechanisms that are ready to accept different accessories. The rotating table is prepared in advance with the necessary structural elements (attachment points, mounting brackets) so that when conversion is needed, accessories can be quickly attached without requiring modification of the rotating table itself or reconfiguration of hydraulic systems.
Solution Approach 2:
The patent applies dynamics by creating a flexible, adaptable rotating table system that can dynamically reconfigure its accessories based on operational needs. The rotating table incorporates movable and adjustable components that allow quick changes in configuration, enabling the system to adapt from one excavation method to another through simple attachment and detachment operations rather than complex reconfiguration.
3Adaptability or versatility
If dedicated equipment is replaced to convert between excavation methods, then the machine can be optimized for each method, but the investment cost and time required for conversion increase
Solution Approach 1:
The patent applies discarding and recovering by allowing the rotating table to be retained and reused across different excavation methods while only the accessories are discarded and replaced. The rotating table serves as a recoverable common platform that maintains its value and functionality across different applications, while the method-specific accessories (Kelly rods, propellers, pipes) are discarded and replaced as needed, significantly reducing conversion costs compared to replacing entire systems.
Data Source
AI summary
A modular assembly for handling excavating equipment is disclosed. The assembly includes a first rotating table having a main body; one or more motors, each having a pinion, associated with the main body; a bearing having a fixed ring constrained to the main body and a movable ring that is coaxial and rotatable with respect to the fixed ring; a dragging sleeve integrally coupled with the movable ring coaxially to the bearing; a ring gear integrally and coaxially coupled with the dragging sleeve to engage with the pinion and be moved in rotation by the motors rotating integrally with the dragging sleeve and integrally with the movable ring. The assembly also has a second rotating table adapted to be coupled to a continuous excavating propeller; a plurality of accessories associated with the first rotating table so it can be coupled to a telescopic Kelly rod or to a continuous excavating propeller or to a casing and excavating pipe.