Electric Side Loader Arms That Eliminate Hydraulic Leaks
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Solution Overview
Problem
Existing refuse vehicles rely on hydraulic systems for lifting and manipulating waste receptacles, which are prone to leaks and require frequent maintenance.
Innovation Solution
The implementation of electrically-powered actuators in the loader arm system, eliminating the need for hydraulic tanks and lines, thereby reducing maintenance and upkeep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic systems are used for lifting and manipulating waste receptacles, then the lifting function can be achieved, but the system is prone to leaks and requires frequent maintenance
Solution Approach 1:
The patent replaces the hydraulic system with an electrically-powered actuator system. The electric motor directly drives the loader arm through a reduction gear mechanism, eliminating hydraulic tanks, lines, and fluid reservoirs that are prone to leaks and require maintenance. This substitution of mechanical/hydraulic components with electrical components resolves the contradiction by improving reliability and reducing maintenance frequency.
2Reliability
If hydraulic systems are used for lifting and manipulating waste receptacles, then the lifting function can be achieved, but the system complexity increases due to hydraulic tanks and lines
Solution Approach 1:
The patent eliminates hydraulic tanks, lines, and associated components by using an electrically-powered actuator. The electric motor connects directly to the loader arm through a reduction gear mechanism, significantly simplifying the overall system architecture. This reduction in component count and system complexity directly addresses the contradiction while maintaining the lifting function.
3Ease of repair
If electrically-powered actuators are used in the loader arm system, then maintenance needs are reduced, but the power source requirements increase
Solution Approach 1:
The patent employs a reduction gear mechanism that enables the high-torque, low-speed operation required for lifting waste containers using a compact electric motor. The gear reduction allows the system to achieve the necessary mechanical advantage without requiring a excessively large or high-power motor, thereby reducing overall power consumption while maintaining lifting capability and reducing maintenance needs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The electrically-actuated loader arm system reduces maintenance needs and enhances reliability by eliminating hydraulic leaks, improving the operational efficiency of refuse vehicles.
Implementation Method 1
at least one electrically-driven actuation mechanism powered by the power source and configured to selectively actuate the side-loading lift assembly
Implementation Method 2
The grabber motor is powered by the power source and is configured to selectively move the grabber fingers between a receiving position and a grasping position
Data Source
AI summary
A vehicle including a body assembly and an automated reach arm including a container engagement mechanism configured to selectively engage a container, a first actuator configured to selectively swing the automated reach arm with respect to the body assembly, a second actuator configured to selectively swing the container engagement mechanism, a first articulating arm segment hingedly coupled to the body assembly, a second articulating arm segment hingedly coupled to the first articulating arm segment and the container engagement mechanism, a third actuator configured to selectively rotate the first articulating arm segment with respect to the body assembly, and a fourth actuator configured to selectively rotate the second articulating arm segment with respect to the first articulating arm segment.