Floor Surfacing Machine Wheel Drive Oscillation for Stability Control
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Solution Overview
Problem
Existing floor surfacing machines, particularly remotely controlled ones, face challenges with stability and control due to uneven frictional forces between grinding heads and the floor, leading to uncomfortable operation and potential uneven results.
Innovation Solution
A floor surfacing machine design featuring a frame supported by two wheels, with independently operable planetary and satellite heads driven by separate motors, allowing for remote control and oscillating movement to maintain stability and increase surfacing width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the machine is remotely controlled to release the operator from propulsion, then operator comfort and productivity are improved, but stability and control are worsened due to uncontrolled deviations from frictional forces
Solution Approach 1:
The control unit receives signals from sensors that detect the actual position and movement of the planetary and satellite heads, compares these with the desired positions, and automatically adjusts motor commands to compensate for deviations caused by frictional forces, maintaining stability during remote operation
Solution Approach 2:
The system uses its own sensors and control unit to automatically detect and correct its own positioning deviations without external intervention, enabling stable remote operation by self-compensating for frictional force variations
2Productivity
If the planetary head and satellite heads are independently operable, then control flexibility and productivity are improved, but the force required to control the machine is worsened
Solution Approach 1:
The patent replaces manual mechanical control with an electrical motor system controlled by a control unit that receives signals from a handle control panel, converting the need for high manual control force into electrical motor torque that can be precisely controlled without physical strain on the operator
Solution Approach 2:
The machine is divided into independently controlled segments (planetary head and satellite heads) each with its own motor, allowing separate control of each component to optimize surfacing efficiency while the control system manages the distributed control complexity
3Productivity
If the machine advances at normal walking pace, then productivity is improved, but grinding quality is worsened resulting in uneven surfaces
Solution Approach 1:
Sensors detect the actual surfacing quality and position of the grinding heads, and the control unit adjusts the advancement rate and head positions in real-time to maintain consistent surface evenness while allowing faster overall progression across the floor area
Solution Approach 2:
The system dynamically adjusts the advancement rate and head positioning based on real-time feedback rather than maintaining a fixed pace, allowing the machine to optimize between speed and quality for each specific location on the floor
Data Source
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AI summary
The present invention relates to a floor surfacing machine (1) comprising a frame (2) that is carried by at least a first wheel (3) and a second wheel (4). The floor surfacing machine (1) comprises at least one operating head (15) that is rotatably mounted to the frame (2). Moreover, the floor surfacing machine (1) comprises a control unit (10, 12) and a wheel drive assembly for individually controlling the first wheel (3) and the second wheel (4). The control unit (10, 12) is arranged to add an oscillation control signal (O) to a wheel drive control signal (V) to individually vary the speed of the first wheel (3) in relation to the second wheel (4) for laterally displacing the operating head (15) between a leftmost position and a rightmost position in an oscillating manner.