Split Connector Tiltrotator Retrofit for Excavator Wiring
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Solution Overview
Problem
Existing excavators require labor-intensive manual wiring when modifying to add a tiltrotator, which is costly and prone to errors.
Innovation Solution
A wiring harness system that connects to existing wiring terminals and harnesses within the excavator's cabin and externally, allowing for quick and efficient installation of a tiltrotator by leveraging existing connectors and wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual wiring is used to add a tiltrotator to an existing excavator, then the tiltrotator can be installed, but the installation process becomes labor-intensive and error-prone
Solution Approach 1:
The wiring system is divided into separate modular components: an external harness with external connectors that interfaces with the excavator's existing external wiring, and an internal harness with internal connectors that interfaces with the cabin wiring. This segmentation allows the tiltrotator wiring to be installed independently without disrupting existing wiring, significantly reducing installation complexity and labor requirements while maintaining the ability to add the tiltrotator attachment
Solution Approach 2:
The patent introduces intermediary connector blocks that serve as coupling interfaces between the existing excavator wiring system and the new tiltrotator wiring. These connector blocks with complementary connectors allow for quick plug-and-play connections, eliminating the need for complex manual wiring while enabling the tiltrotator to be integrated into the excavator's electrical system
2Adaptability or versatility
If manual wiring is used to connect the tiltrotator, then electrical connections can be established, but the process requires significant time and labor
Solution Approach 1:
The wiring harnesses are pre-assembled with connectors already attached and configured before installation. The external and internal harnesses come ready-to-connect with all necessary wiring and connectors pre-positioned, eliminating the need for time-consuming on-site wiring assembly. This preliminary preparation drastically reduces installation time while ensuring proper electrical connection capability for the tiltrotator
Solution Approach 2:
By separating the wiring into pre-fabricated external and internal harness modules with pre-attached connectors, the system enables quick plug-and-play installation. The segmented modular design allows each harness to be independently prepared and connected, significantly reducing the time required to establish electrical connections compared to traditional manual wiring approaches
Data Source
AI summary
A method of retrofitting an excavator to add a tiltrotator can include installing a tiltrotator on a stick and a bucket of the excavator, where the tiltrotator can include a tiltrotator wiring connector. An existing external machine connector can be disconnected from a first connector block on an outside cabin wall of the excavator. A first external connector of a first external branch of an external wiring harness can be connected to the first connector block on the outside of the cabin wall. A second external connector of a second external branch of the external wiring harness can be connected to an external machine connector of the excavator, where the second external branch can be connected to the first external branch. A third external connector of a third external branch of the external wiring harness can be connected to the tiltrotator wiring connector.