Construction Machine Floating Plate Mixing Control
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Solution Overview
Problem
Existing construction machines struggle to maintain consistent material mixing during changes in direction, as the rear plate's contact pressure must be adjusted to prevent insufficient mixing or machine slowdown.
Innovation Solution
The construction machine is designed to support both the front and rear plates on the ground in a floating position during different working operations, allowing for adjustable contact forces to ensure consistent mixing and leveling, even when reversing direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the rear plate contact pressure is increased to improve material mixing, then mixing quality is improved, but the machine slows down or stalls
Solution Approach 1:
The patent applies dynamics by making the plate contact pressure adjustable during operation. The control system dynamically modifies the contact force of the rear plate with the ground based on detected machine speed or operational conditions, allowing the system to maintain optimal mixing pressure without causing machine slowdown or stalling.
Solution Approach 2:
The patent changes the parameter of plate contact pressure from a fixed value to a variable parameter that can be modified during operation. The control device adjusts the contact force of the rear plate based on detected operating conditions, enabling optimization of both mixing quality and machine speed through parameter variation.
2Productivity
If the rear plate contact pressure is decreased to maintain machine speed, then machine speed is maintained, but material mixing becomes insufficient
Solution Approach 1:
The system dynamically adjusts the rear plate contact pressure during operation based on detected machine speed or operational parameters. When speed decreases or mixing quality deteriorates, the control system increases the contact force to restore optimal mixing conditions without causing machine stalling.
Solution Approach 2:
The patent implements feedback control by detecting machine speed or operational conditions and using this information to automatically adjust the rear plate contact pressure. The control device receives feedback about the current operating state and modifies the plate contact force accordingly to maintain optimal mixing while preventing machine slowdown.
3Manufacturing precision
If additional adjustment operations are performed when changing direction, then mixing consistency is improved, but operational time is increased
Solution Approach 1:
The patent applies preliminary action by pre-configuring the front plate to take over the mixing function before the rear plate is raised during direction changes. The control system automatically prepares the front plate position and contact force in advance, eliminating the need for manual intermediate adjustments and maintaining continuous mixing consistency.
Solution Approach 2:
The patent makes both the front and rear plates capable of performing the same mixing function. The front plate is equipped with adjustable contact force control, allowing it to universally perform material mixing and leveling tasks that were previously the exclusive domain of the rear plate, enabling seamless role transitions during direction changes.
Data Source
AI summary
In a self-propelled construction machine (1), in particular recycling machine or stabilizing machine, for working a ground (20), comprising at least one machine frame, a working device (10) for working the ground, which is supported on the machine frame (2), wherein the working device is at least partially enclosed by a housing, wherein the housing comprises a plate each at the front and rear end as seen in the main direction of travel that closes off the mixing chamber of the housing towards the front and the rear, respectively, wherein the front plate is adjustable by means of at least one front adjustment device and the rear plate is adjustable by means of at least one rear adjustment device, wherein, in a first working operation, the rear plate as seen in the main direction of travel is supported on the ground in a floating position, it is provided that in a second working operation, the front plate as seen in the main direction of travel is supported on the ground in a floating position.