Dual-Torque Rotary Drive Error Correction Under Vibration and Friction
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Solution Overview
Problem
Rotary driving devices experience system errors due to blocking forces caused by vibration and friction, leading to inaccuracies in dynamic response and motion control.
Innovation Solution
A rotary driving device comprising a driven assembly, a driving assembly, a torque transmission member, a first torque sensor, and a second torque sensor, which measures and corrects system errors using the formula G2−G1=M*a, where M is the rotational inertia and a is the angular acceleration, to accurately control the motion process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rotary driving device is used, then the device can perform circular work, but system errors occur due to blocking forces from vibration and friction
Solution Approach 1:
The patent implements a feedback mechanism by measuring actual torque through torque sensors and comparing it with theoretical torque calculations. The system uses this feedback to identify and correct blocking forces caused by vibration and friction, thereby improving motion control accuracy and reliability during circular work operations.
2Measurement precision
If torque sensors are installed to measure blocking force, then system error can be corrected, but device complexity increases
Solution Approach 1:
The patent introduces torque sensors as intermediary devices that indirectly measure blocking forces by detecting torque variations in the transmission system. This approach allows accurate measurement of harmful factors without directly interfering with the mechanical operation, balancing measurement precision with acceptable device complexity.
3Manufacturing precision
If blocking force is compensated in real-time, then dynamic response accuracy improves, but control system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating theoretical torque requirements and preparing compensation strategies before actual operation. The control system compares predetermined torque values with real-time measurements and applies corrections proactively, improving dynamic response accuracy while managing control system complexity through advance planning.
Data Source
AI summary
A rotary driving device and a method for correcting a system error of the rotary driving device are provided. The rotary driving device includes a driven assembly, a driving assembly, a torque transmission member, a first torque sensor, and a second torque sensor. The driving assembly includes a fixed component and a rotating component, the rotating component is rotatably connected to the fixed component, the torque transmission member is connected to the rotating component and the driven assembly, the rotating component is configured to drive the driven assembly to rotate through the torque transmission member. The first torque sensor is connected to the fixed component and the torque transmission member, and the second torque sensor is disposed on the driven assembly.