Side Loader Garbage Truck Packing Blade and Cylinder Relocation
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Solution Overview
Problem
Existing garbage truck packing methods face issues such as potential leakage, difficult maintenance access, and wear on loader arms due to single-point contact rollers, leading to inefficiencies and maintenance challenges.
Innovation Solution
A sealed hopper floor with hydraulic cylinders located above the chassis, external grease points, and a multi-point contact roller system with a center pivot pin to reduce wear and facilitate easy maintenance, along with a packing blade that doubles as a hopper cover for improved operation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a 180 degree sweep packer paddle is used, then packing efficiency is improved, but maintenance access becomes difficult due to floor seal leakage points and under-body cylinder locations
Solution Approach 1:
The invention extracts the hydraulic cylinders and grease points from the under-body location and relocates them to the top of the hopper. This allows maintenance personnel to access all hydraulic components and lubrication points from above, eliminating the need to work from inside the body or deal with floor seal leakage points while maintaining the 180 degree sweep packing efficiency
2Ease of operation
If cylinders are mounted under the body, then packing function is achieved, but maintenance access is difficult and grease points are hard to reach
Solution Approach 1:
The invention inverts the traditional mounting arrangement by placing the hydraulic cylinders on top of the hopper rather than underneath it. This reversal allows all maintenance activities including cylinder service and grease point lubrication to be performed from above, making maintenance as easy as changing a tire while preserving the packing function
3Device complexity
If single point contact rollers are used on the loader arm, then the structure is simple, but wear on the loader arm increases
Solution Approach 1:
The invention segments the single contact point into multiple contact points by using a pair of rollers instead of one. This segmentation distributes the wear across two separate contact points on the loader arm, significantly reducing wear on any single point and extending the life of the loader arm while maintaining structural simplicity
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 solution enhances maintenance accessibility, reduces wear on loader arms, and prevents leakage, resulting in a more efficient and reliable garbage collection process.
Implementation Method 1
the packing blade being actuated with hydraulic cylinders that are located above the chassis of the garbage truck
Implementation Method 2
The tandem axle has a center pivot pin that allows for multi-point contact between the rollers and the wear strip and that provides for reduced binding on the arm during arm extension
Data Source
AI summary
An improved side loading garbage truck that includes an improved packing method that utilizes a packing blade that doubles as the hopper cover, that includes its hydraulic cylinders outside the body of the truck, does not have any potential leak points inside the body and includes all grease points outside the body providing easier access to the cylinders, blade and grease points for maintenance and installation. The other improvement is the use of multi-point contact rollers thereby reducing wear and tear and extending the life of the side loader arm.


