Electric Rear Lift Assembly With Shake Function for Refuse Dumping
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Solution Overview
Problem
Refuse vehicles face challenges in efficiently emptying refuse containers into the vehicle compartment due to the lack of effective mechanisms for pivoting and dumping contents, which can lead to inefficiencies in waste collection and processing.
Innovation Solution
A tipper assembly for refuse vehicles is designed, featuring a base coupled to the tailgate, an electric actuator, and arms that pivot the implement to facilitate dumping refuse container contents into the vehicle compartment, with a transmission system for stable operation and an optional shake function to dislodge contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual emptying methods are used, then device complexity is reduced, but productivity and waste collection efficiency deteriorate
Solution Approach 1:
The tipper assembly is divided into functionally independent modules: a pivot actuator for rotating the implement, a lift actuator for vertical movement, and a shake mechanism for dislodging contents. This segmentation allows each component to perform its specific function efficiently, improving overall productivity while keeping individual components manageable in complexity
Solution Approach 2:
The shake mechanism automatically dislodges refuse container contents through vibratory motion, eliminating the need for manual intervention. The system serves itself by using the actuator to both position and clear the container, thereby improving waste collection efficiency without requiring additional manual labor or complex external systems
2Productivity
If a simple pivoting mechanism is used, then device complexity is reduced, but the ability to completely empty refuse containers deteriorates
Solution Approach 1:
The shake mechanism employs periodic vibratory motion to dislodge refuse container contents that remain after dumping. This oscillating action creates repeated force cycles that effectively shake loose adhered material, ensuring more complete emptying without requiring a fundamentally complex mechanism
Solution Approach 2:
The shake mechanism generates mechanical vibrations through the actuator to dislodge contents from the refuse container. This vibratory action breaks the adhesion between refuse and container surfaces, improving dumping completeness while adding only moderate complexity to the system
3Ease of operation
If electric actuators are used, then ease of operation is improved, but use of energy increases
Solution Approach 1:
The shake mechanism uses periodic, intermittent actuator operation rather than continuous operation. The actuator activates in brief cycles to create vibratory motion, then pauses, thereby reducing overall energy consumption while maintaining ease of automated control through programmable timing sequences
Solution Approach 2:
The system dynamically adjusts actuator operation based on operational phase: the pivot actuator provides controlled rotation during dumping, while the shake actuator provides intermittent vibratory motion afterward. This dynamic, phase-specific actuation optimizes energy usage while maintaining simple automated control through centralized actuator management
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 tipper assembly enables efficient and reliable emptying of refuse containers, improving waste collection efficiency and reducing manual labor, while the shake function aids in dislodging contents for complete dumping.
Implementation Method 1
an actuator powered by electric energy
Implementation Method 2
a transmission connecting the pivot actuator to at least one of the first arm or the second arm
Implementation Method 3
The transmission facilitates providing a shake function when the implement is at the dump position
Data Source
AI summary
A tipper assembly includes a base configured to couple to a tailgate of the refuse vehicle, an actuator powered by electric energy, an arm extending from and pivotally coupled to at least one of the actuator or the base, and an implement coupled to the arm. The implement is configured to engage with a refuse container such that operation of the actuator facilitates pivoting the implement and the refuse container from a base position to a dump position to dump contents within the refuse container into an opening in the tailgate.