Adjustable Push-Roller Assembly with Scissor-Lift Actuation
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Solution Overview
Problem
Manual adjustment of push-rollers in paving machines is time-consuming and labor-intensive due to the need for different positions for various truck sizes and shapes, and existing powered systems require frequent resetting for each truck.
Innovation Solution
An automatically adjustable push-roller assembly with a scissor-lift mechanism and actuator system that adjusts based on sensed distance to a truck, allowing for precise positioning without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of push-roller is used to accommodate different truck sizes and shapes, then the push-roller can be positioned correctly for each truck, but the adjustment process is time-consuming and labor-intensive
Solution Approach 1:
The push-roller assembly incorporates a scissor-lift mechanism with an actuator that enables dynamic adjustment of the push-roller position relative to the chassis. This allows the system to transition from a static, manually-adjusted configuration to a dynamic, automatically-adjusted configuration that can adapt to different truck sizes and shapes without requiring manual intervention for each adjustment.
Solution Approach 2:
The system uses a sensor to detect the distance between the chassis and the target truck, and the actuator automatically adjusts the push-roller position based on this detected distance. This self-service mechanism eliminates the need for manual measurement and adjustment by operators, thereby reducing both adjustment time and labor requirements while maintaining positioning accuracy.
2Extent of automation
If powered push-roller with hydraulic cylinder is used to move the roller back and forth, then the push-roller can be positioned automatically, but it requires resetting for each truck which reduces efficiency
Solution Approach 1:
The system incorporates a sensor that continuously detects the distance between the chassis and the target truck and provides feedback to the control system. Based on this feedback, the actuator automatically adjusts the push-roller position to the correct setting for each truck type. This closed-loop feedback mechanism eliminates the need for manual resetting and ensures optimal positioning for different truck configurations, thereby maintaining high operational efficiency.
Solution Approach 2:
The system changes the operational parameters of the push-roller assembly by using an actuator controlled by sensor feedback to dynamically adjust the position of the support frame relative to the chassis. This allows the system to adapt to different truck sizes and shapes by changing the push-roller position parameter automatically, eliminating the need for resetting and improving productivity.
3Measurement precision
If multiple personnel are deployed for manual adjustment of push-roller, then the positioning can be done accurately, but the labor cost and operational complexity increase
Solution Approach 1:
The system uses a sensor to automatically detect the distance to the target truck and an actuator to automatically adjust the push-roller position based on this detection. This self-service capability replaces the need for multiple personnel to manually measure and adjust the push-roller position, thereby reducing labor requirements and operational complexity while maintaining or improving positioning accuracy through automated sensing and actuation.
Data Source
AI summary
A machine with a chassis and a push-roller assembly connected to the chassis. The push-roller assembly engages a vehicle, has a support frame with rollers, and support arms with a chassis end connected to the support frame and a linkage end connected to the chassis. The support frame moves relative to the chassis when the support arm pivots with respect to the chassis and the support frame. The machine includes an actuator controller associated with an actuator in the push-roller assembly. The actuator is connected to the support arm, causing the support arm to pivot with respect to the chassis and support frame, displacing the support frame relative to the chassis.