Motorcycle crankcase cover structure

Abstract

The invention relates to a motorcycle crankcase cover structure. The rear end of a crankcase cover is provided with a window which is sealed by a clutch separate cover, the clutch separate cover is provided with a control rod hole along the radial direction, and the control rod hole is communicated with the inner cavity of the crankcase cover through a push rod hole; a first via hole for a starting shaft and a containing groove are arranged beside the window of the crankcase cover, wherein the first via hole for the starting shaft is butt-jointed and communicated with a second via hole for the starting shaft on the clutch separate cover, the groove wall of the containing groove is respectively provided with an oil inlet and an oil outlet, a filter element is arranged inside the containing groove, and a notch of the containing groove is sealed by an oil filter cover; and the oil filter cover is provided with an oil conduit, an inlet of the oil conduit is communicated with the inner cavity of the crankcase cover by the oil inlet, and an outlet thereof is communicated with the interior of the filter element. The motorcycle crankcase cover structure provides convenience for the maintenance and replacement of the clutch and filter element, leads operations of the repair and replacement of the clutch, or the cleaning and replacement of the filter element to be simpler and faster, and ensures the sealing property of the crankcase and the dynamic balance of the crankshaft not to be affected.

Description

technical field [0001] The invention relates to an engine part, in particular to a motorcycle crankcase cover structure on the engine. Background technique [0002] At present, the traditional crankcase cover is an integral structure with an open front end and a closed rear end. The clutch lever and push rod are installed on the closed end of the crankcase cover, and the two are connected to each other, so that the action of the clutch lever is transmitted to the crankcase through the push rod. clutch to control clutch disengagement or engagement. There is a serious use defect in the above structure: when the engine clutch needs to be repaired or replaced, the entire engine crankcase cover must be disassembled. For the dynamic balance of the crankshaft, on the one hand, the crankcase cover gasket must be replaced every time it is disassembled, which is extremely costly; on the other hand, it will reduce the stability of the crankshaft and increase the vibration of the engin...

AI Technical Summary

Problems solved by technology

There is a serious use defect in the above structure: when the engine clutch needs to be repaired or replaced, the entire engine crankcase cover must be disassembled. The dynamic balance of the crankshaft, on the one hand, the crankcase cover gasket must be replaced every time it is removed, which is extremely costly; on the other hand, it will reduce the stability of the crankshaft operation and increase the vibration of the engine

Since the centrifugal oil filter is located in the crankcase, when maintenance or replacement is required, the crankcase cover and the crankshaft must be disassembled. The dynamic balance of the crankshaft reduces the stability of the crankshaft, which not only increases the vibration of the engine, but also shortens the service life of the crankshaft.

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