Crane Counter Ballast Carrier Plate Guide Pin Positioning
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Solution Overview
Problem
Existing solutions for centering counter ballast carrier plates on cranes require complex welding and may have projecting edges during operation, making them cumbersome and prone to misalignment.
Innovation Solution
The use of guide pins on the counter ballast carrier plate that can be guided along the undercarriage's guide edges for precise positioning, eliminating the need for welding and projecting edges, with optional locking and adjustable features to ensure accurate placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If centering cones and metal abutment sheets are attached to the undercarriage, then the counter ballast carrier plate can be centered during installation, but the undercarriage requires complex welding work and has projecting edges during operation
Solution Approach 1:
Instead of attaching centering devices to the undercarriage, the patent inverts the approach by equipping the counter ballast carrier plate with guide pins that engage with guide edges on the undercarriage. This eliminates the need for welding centering devices to the undercarriage while achieving the same centering function.
Solution Approach 2:
The patent extracts the centering function from the undercarriage and relocates it to the counter ballast carrier plate through guide pins. This removes the need for complex welding work on the undercarriage and eliminates projecting edges that would interfere with crane operation.
2Manufacturing precision
If centering devices are attached to the undercarriage, then the counter ballast carrier plate can be positioned correctly, but projecting edges are created during crane operation
Solution Approach 1:
The patent inverts the centering approach by placing guide pins on the movable counter ballast carrier plate rather than attaching centering devices to the stationary undercarriage. This eliminates projecting edges on the undercarriage that would interfere with crane operation while maintaining positioning accuracy through the guide pin-guide edge engagement.
3Ease of operation
If manual placement of the ballast carrier plate is performed, then installation can be completed, but misalignment may occur without proper centering mechanisms
Solution Approach 1:
The guide pins on the counter ballast carrier plate automatically engage with the guide edges on the undercarriage during the lifting and placement operation. This self-centering mechanism ensures accurate alignment without requiring manual adjustment or complex centering devices, combining ease of operation with positioning precision.
Data Source
AI summary
The present disclosure relates to a mobile work machine, in particular to a crane or to a mobile crane, comprising an undercarriage, a superstructure rotatable with respect to the undercarriage, and a counter ballast carrier plate that can be mounted to the superstructure via a ballast suspension thereof, wherein the counter ballast carrier plate comprises at least one guide pin that can be guided along at least one guide edge of the undercarriage to bring the counter ballast carrier plate into a predefined installation position on the undercarriage.