| 摘要 |
PURPOSE: Exclusion structure of impurities for a final reduction gear in a vehicle is provided to prevent noise of gears and damage by eliminating impurities such as iron powder with mounting a magnetic plate in an oil circulation passage, and to cut down expenses by increasing replacement cycle of oil. CONSTITUTION: An impurity exclusion system of a final reduction gear is composed of a differential carrier(124) forming the exterior; a drive pinion shaft(110) arranged in the differential carrier to transmit power of a propeller shaft; pinion inner and outer bearings(130,134) arranged between the drive pinion shaft and the differential carrier to rotate the drive pinion shaft; a separation part(114); a nut(120); an oil circulating part(122); a compression flange(132); an oil passage(140); a fixing part(138) inserted and fastened to the differential carrier; and a magnetic plate(136) inserted to the fixing part. The long and large magnetic plate is placed horizontally to the oil passage, and the fixing part is opened and closed by a hexagonal wrench with tapping the side of the differential carrier. Impurities such as metal powder are attached to the magnetic plate in circulating oil, and excluded by separating the magnetic plate from the fixing part.
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