Front-Discharge Concrete Mixer Chute Layout for Restricted Access
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Solution Overview
Problem
Existing concrete mixer vehicles face challenges in efficiently discharging concrete to locations with limited access and require improved visibility, accessibility, and hydraulic efficiency for the engine module and drum assembly.
Innovation Solution
A concrete mixer vehicle design featuring a front discharge configuration with a chute that can pivot and unfold, a water tracking system, a rear drive pedestal with a four-point mount, a hood with improved airflow cooling, and a multi-function pump for enhanced hydraulic efficiency, along with a superstructure for improved visibility and reduced noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the engine module is positioned rearward of the drum assembly, then accessibility for maintenance is improved, but the vehicle length increases
Solution Approach 1:
The engine module is nested within the vehicle structure by positioning it rearward of the drum assembly and integrating it with the chassis framework. The engine housing is contained within the vehicle's structural boundaries, allowing maintenance access without significantly extending the overall vehicle length.
Solution Approach 2:
Instead of extending the engine module forward which would increase length in one dimension, the design repositions it rearward, utilizing the available space in the longitudinal dimension while maintaining compact overall dimensions through strategic placement within the chassis structure.
2Adaptability or versatility
If the chute is made pivotable and unfoldable, then discharge capability to restricted areas is improved, but device complexity increases
Solution Approach 1:
The chute is divided into multiple segments or sections that can pivot relative to each other. This segmentation allows the chute to be folded into a compact configuration for transport and unfolded into various discharge positions for accessing restricted areas, with each segment independently movable through pivot joints.
Solution Approach 2:
The chute transitions from a static structure to a dynamic one with pivotable joints that enable movement between folded and unfolded states. This dynamic configuration allows the chute to adapt its shape and position based on discharge requirements while maintaining structural integrity through engineered pivot mechanisms.
3Temperature
If the hood design improves airflow cooling, then engine cooling efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The hood incorporates localized airflow channels and openings positioned at specific locations to optimize cooling efficiency. Rather than redesigning the entire hood structure, targeted modifications to airflow paths and cooling element placement achieve improved engine cooling while maintaining relatively simple overall hood construction.
Solution Approach 2:
The hood design utilizes airflow dynamics and pneumatic principles to channel cooling air efficiently across the engine compartment. By incorporating strategically positioned air inlets, outlets, and flow paths, the design leverages natural airflow patterns to enhance cooling efficiency without requiring complex mechanical cooling systems.
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 design allows for efficient concrete discharge to restricted areas, improved operator visibility, reduced noise and vibration, and enhanced hydraulic efficiency, facilitating better operation and maintenance of the vehicle.
Implementation Method 1
a cooling system, and a hood. The hood includes a housing within which the engine and the cooling system are disposed
Implementation Method 2
The actuator extends between the vertical shaft and the chute. The actuator is configured to pivot the chute up and down about a lateral axis.
Implementation Method 3
a drum assembly coupled to the chassis, and an engine module coupled to the chassis and positioned rearward of the drum assembly. The drum assembly includes a mixing drum defining an aperture and an internal volume
Data Source
AI summary
A concrete mixer vehicle includes a chassis, a cab coupled to the chassis, a front bumper coupled to a front end of the chassis, a drum assembly coupled to the chassis, and a module coupled to the chassis and positioned rearward of the drum assembly. The drum assembly includes a mixing drum defining an aperture and an internal volume, a charge hopper positioned proximate the aperture and above the cab, a chute positioned proximate the aperture, beneath the charge hopper, and a drum driver configured to drive the mixing drum. The module includes a prime mover and a hood within which the prime mover is disposed.