Dual-mode automatic bearing lubricating device based on piezoelectric pump

Abstract

The invention belongs to the field of bearing lubricating and relates to a dual-mode automatic bearing lubricating device based on a piezoelectric pump. The dual-mode automatic bearing lubricating device based on the piezoelectric pump is characterized in that lubricating liquid is conveyed by the piezoelectric pump; two working modes, including self-setting lubrication through a human-machine interface and fault-monitoring lubrication by a sensor data fusion method, are provided; the whole dual-mode automatic bearing lubricating device is combined by the piezoelectric pump, an oil storage tank, a sensor set, a piezoelectric driving circuit, a microprocessor, a display, buttons, a battery and the like; through the human-machine interface, the injecting time, the injecting frequency and the injecting amount of the lubricating liquid and the like can be set by a user; and by monitoring three sensor signals, a bearing lubricating fault state is judged by the data fusion method so as to automatically supplement the lubricating liquid. The dual-mode automatic bearing lubricating device has the advantages of low energy consumption, power supply by the battery, small size, convenience in movement, capabilities of automatically injecting the lubricating liquid quantitatively at regular time and monitoring the bearing lubricating fault state to automatically supplement the lubricating liquid, wide applicability to rolling bearings and sliding bearings, and improvement on the bearing lubricating reliability and convenience.

Description

technical field [0001] The invention belongs to the field of bearing lubrication, and in particular relates to an automatic bearing lubrication device driven by a piezoelectric pump and having two working modes of self-setting lubrication of a man-machine interface and sensor data fusion monitoring failure lubrication. Background technique [0002] With the development of high-speed and large-scale power machinery, higher requirements are put forward for bearing capacity, service conditions, transmission efficiency, reliability, and service life. Reasonable lubrication is one of the key measures. At present, in the devices used for automatic lubrication of bearings, the way of motor accelerator and decelerator is mostly used to absorb and discharge the lubricating fluid. For example, the patent "A Bearing Automatic Lubricating System and Method" (CN200810032527.7) uses PLC to control multiple on-site oil replenishers to realize automatic lubrication of bearings. The oil repl...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of automatic bearing lubricating device, which has solved the existing problems of existing automatic bearing lubricating devices such as low lubrication accuracy and resolution, single and unreliable oiling decision, complex structure, and large volume.

Images