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发明公开
CN103591126A 一种发动机附件轮系惰轮总成 无效 - 驳回

一种发动机附件轮系惰轮总成
摘要：
本发明公开了一种发动机附件轮系惰轮总成，其包括惰轮本体、前防尘盖、后防尘盖，惰轮本体由轴承和包塑在其上的塑料带轮组成，轴承包括内圈和外圈，前防尘盖的中心部位设有一凸出的前内圈，该前内圈与轴承的内圈的一侧过盈配合，后防尘盖的中心部位设有一凸出的后内圈，该后内圈与轴承的内圈的另一侧过盈配合，所述前防尘盖和后防尘盖将轴承的两侧完全覆盖。本发明将惰轮本体和前后防尘盖压装成一个整体，无需再用芯轴或者安装螺栓固定，不仅结构紧凑，防尘性好，减少了零件本身的成本，而且减少了发动机生产线上组装惰轮的工序，提高了装配效率。
摘要（英）：

The invention discloses an engine accessory gear train idler assembly. The engine accessory gear train idler assembly comprises an idler body, a front dust cap and a rear dust cap, the idler body is composed of a bearing and a plastic pulley plastic-covered thereon, the bearing comprises an inner ring and an outer ring, the central position of the front dust cap is provided with a projecting front inner ring, the front inner ring is in interference fit with one side of the inner ring of the bearing, the central position of the rear dust cap is provided with a projecting rear inner ring, the rear inner ring is in interference fit with the other side of the inner ring of the bearing, and the front dust cap and the rear dust cap completely cover two sides of the bearing. The idler body, the front dust cap and the rear dust cap are press-mounted to form an integral body without using a mandrel or installing a bolt to fix, so the engine accessory gear train idler assembly has the advantages of compact structure, good dust resistance, part cost reduction, reduction of the idler assembling process on an engine production line, and improvement of the assembling efficiency.

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