Oil-gas lubrication device, oil-gas lubricated motorized spindle assembly and control method of oil-gas lubricated motorized spindle assembly

Abstract

The invention provides an oil-gas lubrication device, an oil-gas lubricated motorized spindle assembly and a control method of the oil-gas lubricated motorized spindle assembly. The oil-gas lubrication device comprises an oil gas distributor with a plurality of output channels, a plurality of oil gas conveying devices and a controller; the plurality of oil gas conveying devices communicate with the oil gas distributor and are used for conveying oil gas into the oil gas distributor, and the plurality of oil gas conveying devices can convey oil gas in at least two temperature ranges; the controller is used for controlling the work of the oil gas distributor and the work of the plurality of oil gas conveying devices so as to adjust the working states of the plurality of oil gas conveying devices and the oil gas distributor and the temperature of conveyed oil gas; and each oil gas conveying device comprises an oil tank and a gas circuit assembly, wherein a first temperature adjusting device for increasing and decreasing the oil temperature is arranged in each oil tank, and a second temperature adjusting device is arranged on each gas circuit assembly. According to the scheme, the plurality of oil gas conveying devices can convey the oil gas with different temperatures, the first temperature adjusting devices and the second temperature adjusting devices can further achieve temperature adjustment and control, in this way, the lubricating temperature range matched with the whole system can be enlarged, and lubrication in a wider temperature range is achieved.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the field of oil-air lubrication, and more specifically, relate to an oil-air lubrication device, an oil-air lubricated electric spindle assembly and a control method thereof. Background technique [0002] At present, the application range of all-ceramic bearing electric spindles is getting wider and wider, for example, it can be applied to aerospace, ordinary machine tools or equipment in some extremely cold regions. Spindle etc. are studied. In the process of researching electric spindles such as all-ceramic bearing electric spindles, it is often necessary to determine the performance of all-ceramic bearing electric spindles and other electric spindles through experiments. When the machine tool or the equipment in the extremely cold area, the simulation experiment of the full ceramic bearing electric spindle is often carried out according to the application occasion of the full ceramic bearin...

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Problems solved by technology

And because when the all-ceramic bearing electric spindle is applied to different environments, the surrounding temperature will also vary greatly when it is working. Therefore, when conducting simulation experiments on different all-ceramic bearing electric spindles, the all-ceramic bearing electric spindle The experimental environment will be quite different, and since the lubricating device has its optimum lubricating temperature range, when conducting different full ceramic bearing electric spindle experiments, it is impossible to use the same lubricating device for different experiments. All ceramic bearing motorized spindles are lubricated. At present, when conducting experiments on different full ceramic bearing motorized spindles, the corresponding lubricating device is selected according to the experimental environment temperature, and this leads to different requirements for different full ceramic bearing motorized spindles. The experiment needs to be equipped with different lubricating devices at the same time to lubricate different full-ceramic bearing electric spindle experiments, which will not only increase the experimental cost of all-ceramic bearing electric spindles, but also need to replace the lubricating device back and forth according to the electric spindle to be tested, so that Lead to low efficiency and complicated operation of electric spindle experiment

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