Transmission heat dissipation structure

Abstract

This invention relates to a transmission cooling structure housed within the crankcase of an engine and driven by a cylinder head and a cylinder of the engine. The crankcase includes a left crankcase and a right crankcase. The transmission cooling structure includes a crankshaft, a wet clutch, a drive shaft, and a first oil filter. The crankshaft is connected to a piston in the cylinder via a connecting rod. The wet clutch is fitted onto one end of the crankshaft and its interior is circulated with engine oil. The drive shaft is coaxially mounted with the crankshaft and pivotally located within the wet clutch, and can be selectively disengaged or engaged with the crankshaft under the control of the wet clutch. The first oil filter is disposed on the outside of the wet clutch and is used to filter the friction dust of the wet clutch. The left crankcase is equipped with a clutch housing, so that the wet clutch is housed in a clutch chamber formed by the left crankcase and the clutch housing. The left crankcase is also equipped with a first oil filter cover, so that the first oil filter is housed in a first oil filter chamber formed by the left crankcase and the first oil filter cover.

Claims

1. A transmission cooling structure, housed within a crankcase of an engine and driven by a cylinder head and a cylinder of the engine, the crankcase including a left crankcase and a right crankcase, the transmission cooling structure comprising: a crankshaft connected to a piston within the cylinder by a connecting rod; a wet clutch fitted onto one end of the crankshaft and having engine oil flowing through its interior; a drive shaft coaxially mounted with the crankshaft and pivotally disposed within the wet clutch, selectively disengaged or engaged with the crankshaft under the control of the wet clutch; and a first oil filter disposed on the outer side of the wet clutch for filtering frictional dust from the wet clutch, wherein... The left crankcase is equipped with a clutch housing, such that the wet clutch is housed in a clutch housing chamber formed by the left crankcase and the clutch housing, and the left crankcase is equipped with a first oil filter cover, such that the first oil filter is housed in a first oil filter chamber formed by the left crankcase and the first oil filter cover.

2. The transmission heat dissipation structure as described in claim 1, wherein, The drive shaft system uses a continuously variable transmission to drive a transmission shaft, which in turn drives an output shaft via a gear set, and the output shaft drives a wheel to rotate.

3. The transmission heat dissipation structure as described in claim 1, wherein, The wet clutch includes a clutch cover and a fixing plate fixed to the clutch cover by a buckle plate. Between the clutch cover and the fixing plate are a plurality of rolling elements, a first clutch cover pressure plate, a clutch center guide, a plurality of clutch buffer plates, a plurality of clutch plates, a plurality of clutch friction plates, a second clutch cover pressure plate, a disc spring and a plurality of clutch springs.

4. The transmission cooling structure as described in claim 1 further includes a second oil filter screen, wherein the right crankcase is fitted with a second oil filter cover, such that the second oil filter screen is housed in a second oil filter chamber formed by the right crankcase and the second oil filter cover.

5. The transmission heat dissipation structure as described in claim 4, wherein, The bottom of the left crankcase and the right crankcase is an oil pan. The oil flowing through the wet clutch is filtered by the first oil filter and then placed in the oil pan. After being filtered by the second oil filter, it is pumped by an oil pump to various parts in the crankcase.

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