Work Machine Operation Rod with Segmented Power Lines
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Solution Overview
Problem
Conventional work machines with operation rods lack the ability to adjust electric power supplied to the motor based on its condition, limiting efficiency and performance.
Innovation Solution
A work machine design featuring an operation rod separable into partial rods, with sensors to detect motor conditions, a motor controller, and electric connectors that allow for adjustable power transmission to the motor, enabling real-time power adjustment based on motor conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only two motor power lines are provided along the operation rod, then the structure is simple, but it is not possible to adjust the electric power supplied to the motor in accordance with the state of the motor
Solution Approach 1:
The operation rod is divided into a first partial rod and a second partial rod that can be separated and coupled. Correspondingly, the power transmission system is segmented into first and second electric connectors with multiple terminals, allowing complex power management functionality to be distributed across modular components.
Solution Approach 2:
The electric connector is designed with multiple terminals that can selectively connect different power lines based on motor conditions. The system dynamically adjusts power transmission by controlling which terminals are connected, enabling adaptive power supply from two power lines to the motor based on sensor feedback.
2Ease of operation
If the operation rod is separable into partial rods, then the ease of operation is improved, but the electrical connection complexity increases
Solution Approach 1:
The electric connector integrates multiple functions into a single component: it provides electrical connections for power transmission, houses sensor signal transmission paths, and enables mechanical coupling of the partial rods. This merging reduces the number of separate components needed while maintaining operational simplicity.
Solution Approach 2:
The first and second electric connectors are designed as multi-functional components that simultaneously handle power transmission through multiple terminals, sensor signal transmission, and mechanical coupling. This universal design allows a single connector structure to fulfill multiple roles, simplifying the overall system.
Data Source
AI summary
A work machine includes a motor and a sensor disposed in a front unit, a motor controller disposed in a rear unit, a motor power line and a sensor signal line disposed along an operation rod, and a pair of electric connectors. The motor power line includes first and second partial motor power lines disposed along the first and second partial rods respectively. The sensor signal line includes first and second partial sensor signal lines disposed along the first and second partial rods respectively. A first electric connector includes first electric terminals, each of which is coupled with corresponding one of the first partial motor power line or the first partial sensor signal line, and a second electric connector includes second electric terminals, each of which is coupled with corresponding one of the second partial motor power line or the second partial sensor signal line.