Central transmission type mud scraper output shaft rotation monitoring device and monitoring method thereof

Abstract

The invention discloses a center transmission type mud scraper output shaft rotation monitoring device and a monitoring method thereof, the center transmission type mud scraper output shaft rotation monitoring device is connected into a mud scraper fault loop, the monitoring device comprises a mud scraper driving motor, a gearbox connected with the mud scraper driving motor and an output shaft connected to the output end of the gearbox, the monitoring device is characterized by further comprising a PLC, the input end of the PLC is connected with a magnetic induction switch, the magnetic induction switch is arranged at the position of a sheath of the output shaft; a strong magnet is arranged on the output shaft, rotates along with the output shaft, is matched with the magnetic induction switch and is used for detecting the rotation condition of the output shaft; and the output end of the PLC is connected into the mud scraper fault loop. According to the invention, an alarm can be given in time under overload and no-load conditions, so that the possibility that a fault cannot be found in time when occurring is greatly reduced.

Description

technical field [0001] The present invention relates to a monitoring device of a center-driven mud scraper, more specifically, to a monitoring device and a monitoring method for the rotation of an output shaft of a central-driven mud scraper. Background technique [0002] Center-driven mud scrapers are widely used in radial-flow primary sedimentation tanks, secondary sedimentation tanks, high-efficiency sedimentation tanks and other structures in sewage plants. At present, central-drive mud scrapers use torque protection and thermal relays to prevent overloading of mud scrapers. be able to issue an alert. However, in the actual operation process, it is inevitable that mechanical gear damage will cause the idling phenomenon of the mud scraper. According to the current fault protection of the mud scraper, it is impossible to send an alarm for the idling situation, which leads to the need for sewage treatment plants in actual operation. Arrange personnel to conduct inspections...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, it is inevitable that mechanical gear damage will cause the idling phenomenon of the mud scraper. According to the current fault protection of the mud scraper, it is impossible to send an alarm for the idling situation, which leads to the need for sewage treatment plants in actual operation. Arrange personnel to conduct inspections on the equipment site. Failure to find out in time will lead to the failure of the chemical sludge at the bottom of the high-efficiency sedimentation tank to be scraped into the sludge collection bucket smoothly, resulting in the inability of the high-efficiency sedimentation tank to normally remove the chemical sludge, resulting in a smaller tank volume and poor water quality. reduce, which leads to a large amount of manpower expenditure

[0003] In more serious cases, due to the accumulation of chemical sludge, once the sludge scraper is idling and cannot be found in time, depending on the operation of the process, it is difficult to resume operation even if the failure of the mechanical part is restored after a certain period of shutdown. According to the actual situation The situation even requires the area where the mud scraper is located to be emptied and dredged before it can be repaired. Each maintenance cycle takes 2 to 3 weeks, and the cost of a single dredging and evacuation is about 100,000 yuan. The maintenance cost is huge and affects the normal operation of the sewage plant. water adjustment

Images