Cycloidal Tipper Transmission for Controlled Refuse Container Dumping
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Solution Overview
Problem
Existing refuse vehicles lack an efficient mechanism for dumping refuse from containers into the vehicle's compartment, leading to difficulties in waste collection and processing.
Innovation Solution
A tipper assembly for refuse vehicles, comprising a base coupled to the tailgate, an actuator assembly with a transmission device to reduce input speed, an arm pivotally coupled to the actuator or base, and an implement to engage with refuse containers, facilitating the dumping of contents into the vehicle's compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a tipper assembly is added to enable refuse dumping, then waste collection efficiency is improved, but device complexity increases
Solution Approach 1:
The tipper assembly is divided into distinct functional modules: a base coupled to the tailgate, an actuator assembly with transmission device, an arm mechanism, and an implement for container engagement. This segmentation allows each component to perform its specific function independently, improving overall waste collection efficiency while maintaining manageable complexity through modular design.
Solution Approach 2:
The tipper assembly is designed as a multi-functional unit that can engage with various refuse containers, lift and tilt them for dumping, and return to initial position. The actuator assembly with speed-reducing transmission serves multiple purposes: providing lifting force, controlling dumping speed, and enabling precise positioning, thereby improving productivity without proportionally increasing complexity.
2Measurement precision
If a speed-reducing transmission device is used in the actuator assembly, then control precision is improved, but device complexity increases
Solution Approach 1:
A speed-reducing transmission device is introduced as an intermediary component between the actuator and the arm mechanism. This transmission device reduces the rotational speed from the actuator to the arm, providing better control precision during container lifting and dumping operations. The transmission acts as a mediator that transforms high-speed actuator motion into controlled, precise arm movement without requiring direct complex control mechanisms.
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 controlled dumping of refuse from containers into the vehicle's compartment, improving waste collection efficiency and reducing operational complexity.
Implementation Method 1
The cycloidal drive transmission includes a first stage cycloidal drive, a second stage cycloidal drive, and an input shaft. The first stage cycloidal drive includes a first cycloidal disc defining a first aperture, a first plurality of ring pins, and a housing defining a first cavity. The second stage cycloidal drive includes a second cycloidal disc defining a second aperture, a second plurality of ring pins, and an annulus defining a second cavity. The rotation of the input shaft at a first speed causes the rotation of the annulus at a second speed, wherein the second speed is less than the first speed.
Data Source
AI summary
A tipper assembly includes a base configured to couple to a tailgate of the refuse vehicle and an actuator assembly comprising an actuator and a transmission device. The actuator may be coupled to the transmission device and may be configured to provide an input to the transmission device. The transmission device may be configured to reduce a speed of the input. The tipper assembly further includes an arm extending from and pivotally coupled to at least one of the actuator assembly or the base and an implement coupled to the arm. The implement may be configured to engage with a refuse container and facilitate the dumping of contents within the refuse container into an opening in the tailgate.