Methods, storage media, and processors for identifying overspeed faults in construction machinery.
By calculating the overspeed threshold of the hoisting mechanism and identifying overspeed faults in a timely manner, the problem of difficulty in timely identification of overspeed of the hoisting mechanism in the existing technology is solved, ensuring the safe operation of the hoisting mechanism and reducing the risk of accidents.
CN117023434BActive Publication Date: 2026-06-30HUNAN ZOOMLION CONSTR HOISTING MASCH CO LTD
Patent Information
- Application Number
- CN202310779261.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-28
- Publication Date
- 2026-06-30
- Estimated Expiration
- 2043-06-28
AI Technical Summary
Technical Problem
Existing technologies cannot detect overspeed faults in hoisting mechanisms in a timely manner, resulting in low safety and a high risk of accidents.
Method used
By acquiring the current output frequency of the inverter and the rotational speed of the drum, and combining the operating parameters of the motor and reducer, the overspeed threshold is calculated, and an alarm is issued when the speed exceeds the limit, controlling the hoisting mechanism to stop operating.
Benefits of technology
It enables timely identification of overspeed faults in the hoisting mechanism, reducing the risk of accidents and improving safety and operational reliability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117023434B_ABST
Abstract
This application provides a method, storage medium, and processor for identifying overspeed faults in construction machinery. The method includes: acquiring user-sent action commands for a hoisting mechanism at a preset frequency, and controlling a frequency converter to operate according to the action commands to sequentially drive a motor, a reducer, and a drum; acquiring the current output frequency of the frequency converter and a first current speed of the drum; acquiring first operating parameters of the motor and second operating parameters of the reducer; determining an overspeed threshold for the drum at the current output frequency based on the first operating parameters, the second operating parameters, the current output frequency, and a preset coefficient; and determining that an overspeed fault has occurred in the construction machinery if the first current speed exceeds the overspeed threshold. Through this technical solution, the corresponding overspeed threshold can be determined based on the current output frequency of the frequency converter, and this overspeed threshold can be used to promptly identify whether an overspeed fault has occurred in the construction machinery, enabling timely safety measures to be taken and reducing the risk of accidents.
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Citation Information
Patent Citations
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