Tire Changer Hydraulic Synchronization for Even Bead Force
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Solution Overview
Problem
Existing tyre changers face challenges in evenly distributing forces among multiple actuators and ensuring precise, simultaneous tool engagement on the wheel, leading to potential damage and suboptimal mounting/demounting processes.
Innovation Solution
A hydraulic circuit with synchronously driven actuators, connected in series or parallel configurations, and a rephasing system to maintain alignment, along with a plurality of tools for simultaneous interaction with the tyre bead, ensuring equal force distribution and synchronized movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple actuators are driven by the same actuator or hydraulic circuit, then the tools can operate simultaneously on the tyre bead, but the force distribution among tools becomes uneven and positioning precision is compromised
Solution Approach 1:
The system segments the actuator control into independent controllable units, where each actuator can be individually positioned and force-controlled. This allows simultaneous operation of multiple tools while maintaining precise force distribution through independent actuator control rather than a single master actuator.
Solution Approach 2:
The system implements feedback mechanisms through sensors that monitor the position and force of each actuator. This feedback enables real-time adjustment of actuator movements and forces, ensuring uniform force distribution among all tools operating on the tyre bead while maintaining simultaneous operation.
2Adaptability or versatility
If actuators are driven by multiple different actuators connected to the same hydraulic circuit, then more tools can be operated, but precise positioning and synchronized operation become difficult to achieve
Solution Approach 1:
Each actuator is equipped with position sensors and force sensors that provide real-time feedback to the control system. This enables precise positioning of each tool and synchronized operation across all actuators, even when multiple tools are operated simultaneously, by continuously adjusting actuator positions based on feedback signals.
Solution Approach 2:
The hydraulic circuit is designed as a universal multi-functional system that can supply and control multiple actuators independently. This universal hydraulic architecture allows versatile operation of different numbers and types of tools while maintaining precise control through a centralized control system that manages all actuators through common hydraulic lines with individual control valves.
3Productivity
If tools are positioned to touch the wheel at the same time, then mounting and demounting efficiency is improved, but the complexity of coordinating multiple actuators increases
Solution Approach 1:
The system merges the control functions of multiple actuators into a single centralized control system that coordinates all actuators simultaneously. This unified control approach simplifies the coordination complexity by managing all actuator movements and positioning from a single control unit, enabling synchronized tool contact with the wheel while maintaining efficient operation.
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 enables precise and efficient mounting/demounting of tyres by ensuring synchronized and equal force distribution among actuators, preventing wheel and tyre damage and improving the overall process efficiency.
Implementation Method 1
The hydraulic circuit is filled with a fluid... The hydraulic circuit includes a pump... Each actuator of the plurality of actuators defines an internal space and includes a piston which is slidable inside the internal space
Data Source
AI summary
An apparatus for mounting and demounting a tyre relative to a corresponding wheel rim, wherein the apparatus includes: a wheel-holder unit, configured to receive and lock the wheel at an operating position and to set it in rotation about an axis of rotation; a plurality of tools, configured to interact with the tyre to mount and/or demount the tyre; a hydraulic circuit comprising a pump; a plurality of hydraulic actuators, connected to the hydraulic circuit; the hydraulic circuit is configured to drive the actuators of the plurality of actuators synchronously.