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1.减速器结构目前,国内厂家生产的旋挖钻机动力头大都采用定轴式一级减速器。该种减速器由箱盖1、下箱体2、小齿轮轴3、调心滚子轴承4、大齿圈5、安装基体6组成,如图1所示。2.主要零件加工工艺减速器产生传动噪声的主要零件是小齿轮轴3和大齿圈5。其中小齿轮轴3的加工工艺为:调质处理—粗加工—中频淬火或整体渗碳淬火—精加工(磨削轮齿和轴承安装轴颈);大齿圈5的加工工艺为整体调质处理—粗加工—精加工(配合面和轮齿)。
1. Reducer structure At present, the domestic manufacturers of rotary drilling rig power head mostly used fixed-axis reducer. The reducer is composed of a box cover 1, a lower box body 2, a pinion shaft 3, a spherical roller bearing 4, a large gear ring 5 and a mounting base 6, as shown in FIG. 1. 2. The main parts processing technology Reducer transmission noise generated by the main components are pinion shaft 3 and ring gear 5. In which the pinion shaft 3 processing technology: quenching and tempering - roughing - IF quenching or the overall carburizing and quenching - finishing (grinding gear teeth and bearing mounting journal); ring gear 5 processing technology as a whole quenched and tempered Handling - Roughing - Finishing (mating surfaces and gear teeth).