Pipelayer Counterweight Assembly Quick Attach Mechanism
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Solution Overview
Problem
The existing counterweight systems for pipelayer machines are cumbersome to install and remove, often jamming due to foreign objects, and require precise alignment, leading to delays in the pipe-laying process.
Innovation Solution
A counterweight assembly with a circular engagement mount and lug flanges, along with an actuator system that allows for easy lateral movement and secure attachment, enabling quick installation and removal without the need for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional keyway counterweight attachment is used, then secure attachment is achieved, but installation and removal time increases significantly
Solution Approach 1:
The attachment system is divided into separate components: a mounting plate with lug flanges that remains on the pipelayer, and counterweights with corresponding engagement features that can be independently attached and removed. This segmentation allows the counterweights to be quickly exchanged without removing the entire attachment mechanism.
Solution Approach 2:
The mounting plate with lug flanges acts as an intermediary component between the pipelayer frame and the counterweights. It provides a standardized interface that simplifies the attachment process and enables quick connection and disconnection of counterweights without direct manipulation of the heavy weights themselves.
2Reliability
If precise alignment is required for counterweight attachment, then secure attachment is achieved, but alignment difficulty and installation time increase
Solution Approach 1:
The engagement feature incorporates a circular opening in the mounting plate and a corresponding circular protrusion on the counterweight. This circular geometry provides a self-aligning mechanism that tolerates misalignment during approach, allowing the components to naturally orient themselves during attachment without requiring precise manual alignment.
Solution Approach 2:
The attachment interface uses a circular geometry with sufficient clearance and tolerance parameters that allow for easy alignment. The circular opening and protrusion design changes the alignment parameter from requiring precise point-to-point alignment to allowing rotational adjustment, significantly easing the operation.
3Reliability
If counterweights are moved laterally outwards before lifting, then counterbalancing effectiveness is improved, but device complexity increases
Solution Approach 1:
The counterweight attachment system is designed to be dynamically reconfigurable. The mounting plate with lug flanges and corresponding engagement features allow the counterweights to be easily moved between different positions (laterally outwards for counterbalancing, or to other positions) by simply detaching and reattaching them, providing dynamic adaptability without complex mechanical mechanisms.
Data Source
AI summary
A pipelayer machine having a counterweight assembly is provided. The pipelayer machine can include a main body having first and second sides, a first side track provided on the first side of the main body and a second side track provided on the second side of the main body. A side boom can be provided on the first side of the main body. The counterweight assembly can be provided on the second side of the main body and include a counterweight mounting frame. A counterweight can be provided having a first side with an engagement hook extending from the first side. The engagement hook can be used to attach the counterweight to the counterweight mounting frame.