Gearbox lubricating oil liquid level adjusting and controlling system and adjusting and controlling method thereof

Abstract

The invention provides a gearbox lubricating oil liquid level adjusting and controlling system and an adjusting and controlling method thereof. The side face of a bottom lubricating oil storing bin ofa gearbox shell is provided with a communicating containing cavity; the adjusting and controlling system is installed in the containing cavity; a lifting device is formed in a manner that a driving motor and a lead screw are coaxially connected; an oil discharging device is formed in a manner that a floating cavity, a guiding sleeve and a threaded long sleeve are fixedly connected; the floating cavity is in sliding connection with a supporting and guiding assembly through the guiding sleeve, and is in threaded connection with the lifting device through the threaded long sleeve; under drivingby the lifting device, the floating cavity performs lifting movement in the containing cavity along the supporting and guiding assembly, and therefore the liquid level height of lubricating oil in thecontaining cavity is controlled; a control assembly is composed of a controller and a vehicle state sensor in a signal connection manner; and the adjusting and controlling method comprises an adjusting and controlling method for increasing and decreasing the liquid level height of the lubricating oil. According to the gearbox lubricating oil liquid level adjusting and controlling system and the adjusting and controlling method thereof, the amount of the lubricating oil needed by each part is determined according to the specific work state of a gearbox, the liquid level of the lubricating oilis controlled at the position of optimal height, the oil stirring loss is reduced, and the overall transmission efficiency of the gearbox is improved.

Description

Technical field [0001] The invention belongs to the technical field of splash lubrication of automobile gearboxes, and particularly relates to a gearbox lubricating oil level control system and a control method thereof. Background technique [0002] Splash lubrication is an important form of lubrication in automobile gearboxes. The principle is to drive the lubricating oil to splash through the gear pair rotating at high speed, so that the driven lubricating oil will continue to be supplied to the gear meshes, rotating bearings and other parts that need lubrication. . In turn, an oil film is formed on the meshing surface of the gear teeth to reduce the friction factor and power loss; at the same time, the circulating oil can take away the heat generated by the key parts in time, so that the related parts can avoid overheating and failure. [0003] Compared with the forced lubrication form that uses hydraulic pumps to supply pressure oil to key lubrication parts, splash lubrication...

AI Technical Summary

Problems solved by technology

However, since the initial oil volume of the gearbox is determined, the height of the lubricating oil level can only be determined according to the lubricating oil demand under severe working conditions, so as to ensure that the gearbox can work normally under any working conditions

However, the height of the oil level determined in this case is relatively high compared with other general working conditions, and it also causes an inevitable increase in the oil churning loss under some working conditions

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