多车型通用的某重卡减速器壳设计
2020-09-26杨博华席飞杨朴童宁娟
杨博华 席飞 杨朴 童宁娟



摘 要:商用车领域通常一种主减速器应用于卡车、客车、等多种车型,发动机的多种布置方式会导致主减的布置方式不同,需考虑不同的输入转向下主锥轴承的润滑。文章通过对不同车型主锥轴承润滑的分析研究,设计一款多车型通用的主减速器壳,并且在包络设计的基础上,利用油道结构对减壳加强,实现轻量化、大刚性的优化设计。
关键词:减速器壳;主锥轴承;润滑;油道结构
中图分类号:U261.24+2 文献标识码:A 文章编号:1671-7988(2020)17-77-03
Design of Universal Heavy-truck Reducer Housing for Multiple Vehicles
Yang Bohua, Xi Fei, Yang Pu, Tong Ningjuan
(Shaanxi Hande Axle Co., LTD, Shaanxi Xian 710200)
Abstract: In the field of commercial vehicles, a main reducer is usually used in trucks, buses and other vehicles. The layout of the engine will lead to different arrangement of the main reducer. Therefore, the lubrication of the main cone bearing under different input steering should be considered. In this paper, through the analysis and Research on the lubrication of the main cone bearing of different vehicle types, a general main reducer housing for multiple vehicles is designed, and on the basis of envelope design, the oil passage structure is used to strengthen the reduction housing, so as to realize the optimization design of lightweight and large stiffness.
Keywords: Reducer housing; Main cone bearing; Lubrication; Oil passage structure
CLC NO.: U261.24+2 Document Code: A Article ID: 1671-7988(2020)17-77-03
前言
现有主减速器,主要通过被动锥齿轮(以下简称被动轮)甩油,收集到专有油道后润滑主动锥齿轮(以下简称主锥)轴承。由于卡车、客车发动机布置不同,导致主锥朝向可能与行车方向相同,也可能相反,且旋转方向不同,导致被动轮甩油方向也不同。目前,多采用开发多个轴承座或减速器壳(以下简称减壳)上铸造多个油道来满足不同车型,往往零件种类过多或者因为一个减壳上布置多个油道,导致减壳重量重、铸造工艺性差。
本文通过对不同车型被动轮甩油方向以及减壳接油方式的分析研究,设计了一种多“八字”型油道,能够适应主减因车型而变的布置方式,并且利用该“八字”型油道对减壳进行加强,提高壳体的支撑刚性而不增加重量。该油道结构,不需要做大砂芯,无突出的热结,铸造成本低、废品率低、工艺性好,可以满足大批量生产的需求。该减壳已经在多车型上批量使用,市场表现良好。……
