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Developmental Investigation into Low-Noise High-Performance Hybrid Reducers Consisting of Gear and Traction Drives

齿轮与牵引驱动的低噪声高性能混合减速机的开发研究

基本信息

批准号：
60460097
负责人：
ISHIBASHI Akira
金额：
$ 1.92万
依托单位：
Saga University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1987
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460097/
关键词：
Gear Traction Drive Friction Drive Friction Coefficient Power transmission efficiency Gear noise Internal gear トラクション係数内歯車

项目摘要

Gear drives have been widely used because of their high power transmission efficiency and the compactness of the gear box. However, gear noise causes trouble in many cases when gear drives are operated at high speed. In contrast to this, traction drives hardly cause noise problems because power is transmitted without help of teeth.In order to minimize noise from speed reducers, we designed and made a new hybrid speed-reducer with two reduction stages consisting of gear and traction drives. A traction drive with one driving roller and three following rollers was used in the first (high speed) stage, and a gear drive with one gear and three pinion integrated to the following-roller shafts was used in the second stage.Equations for calculating the theoretical reduction ratio and power transmission efficiency of the hybrid speed reducer were derived, and they were used for the analyses of the experimental results.Two types of the hybrid speed reducers were designed and made to examine the power transmission efficiency and running noise. The trial hybrid reducer with external gears having a total reduction ratio of about 20 was rotated up to 2000 rpm input shaft speed. the total efficiency of the speed reducer reached to about 90 % when a low viscosity mineral oil was used as traction oil. In the case of the reducer with an internal gear, the reduction ratio was increased to about 28 with the same size of reducer box, but the total efficiency did not decrease. Running noise from the speed reducers was extremely low as expected.Effects of kinds of traction oils and contact pressure between rolling elements on the total efficiency and changes in the reduction ratio were clarified by experiments with the help of theory.

齿轮传动由于其高的动力传递效率和齿轮箱的紧凑性而得到广泛的应用。然而，在许多情况下，当齿轮传动装置以高速运行时，齿轮噪声会引起麻烦。与此相反，牵引传动几乎不会产生噪音问题，因为动力的传递不需要齿的帮助。为了降低减速器的噪音，我们设计并制造了一种新型的混合减速器，它具有由齿轮和牵引传动组成的两个减速级。在第一个中使用了具有一个驱动辊和三个跟随辊的牵引传动装置第二级采用与随动辊轴成一体的一轮三小齿轮传动，推导了混合式减速器理论减速比和功率传递效率的计算公式，设计并制造了两种混合式减速器，对减速器的动力传递效率和运行噪声进行了试验研究。具有总减速比约为20的外齿轮的试验混合减速器旋转至高达2000 rpm的输入轴速度。当采用低粘度矿物油作为牵引油时，减速器的总效率达到90%左右。采用内齿轮减速器，在减速箱尺寸相同的情况下，减速比提高到28左右，但总效率没有降低。从理论上分析了牵引油种类、滚动体间接触压力对减速机总效率和减速比变化的影响。