Bearing self-lubrication method and device based on feedback control of rotary encoder

Abstract

The invention relates to the technical field of self-lubrication of a shaft system structure, in particular to a self-lubricating method and device for feedback control and measurement of the rotating speed of a main shaft based on a rotary encoder by taking a bearing as support. The closed loop control method is adopted for real-time measurement of the rotating speed of the main shaft base on the rotary encoder according to the rotating speed change of the main shaft caused by bearing lubrication. The bearing lubrication is identified as a feedback signal, the rotating angle of a stepping motor is controlled according to the relationship between the oil injection volume and the rotating angle of the stepping motor, so as to further control an automatic oil injector for injection of the lubricating oil. The device has the characteristics of simple structure, convenient manufacturing, low cost, high measuring accuracy, independent software design, good C program extensibility based on 51 single chip microcomputer and convenient transplantation, etc.

Description

technical field [0001] The invention relates to the technical field of automatic lubrication of shafting structures, and specifically refers to an automatic lubrication method and device based on a rotary encoder to measure the rotational speed of a main shaft and perform feedback control with a bearing as a support. Background technique [0002] At present, the lubrication of the shafting structure is mainly achieved by oiling the bearings supporting the shafting. The existing automatic bearing oiler can be manually set to make the oil cup fill the bearings with regular and quantitative oiling, so as to achieve the effect of lubrication , Such an oil injection method belongs to an open-loop control method, which has the disadvantages of not being very accurate in terms of oil injection time and oil injection volume, and may cause over-injection or under-injection. Too much oil filling will cause unnecessary waste, and insufficient oil filling may cause the bearing lubricity...

AI Technical Summary

Problems solved by technology

[0002] At present, the lubrication of the shafting structure is mainly achieved by oiling the bearings supporting the shafting. The existing automatic bearing oiler can be manually set to make the oil cup fill the bearings with regular and quantitative oiling, so as to achieve the effect of lubrication , such an oil injection method belongs to an open-loop control method, which has the disadvantages that the oil injection time and the oil injection volume are not very accurate, and may cause over-filling or under-filling

Too much oil filling will cause unnecessary waste, and insufficient oil filling may cause the bearing lubricity to decrease, causing wear and tear

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