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小齿轮与轴制成一体,称齿轮轴

网址:www.huiguangcn.com时间:2024-03-18 14:57:24(部分内容来源于网络,不代表本站观点)

减速器主要由传动零件(齿轮或蜗杆)、轴、轴承、箱体及其附件所组成。其基本结构有三大部分:
The reducer mainly consists of transmission parts (gears or worms), shafts, bearings, housing, and its accessories. Its basic structure consists of three major parts:
1、齿轮、轴及轴承组合
1. Combination of gears, shafts, and bearings
小齿轮与轴制成一体,称齿轮轴,这种结构用于齿轮直径与轴的直径相关不大的情况下,如果轴的直径为d,齿轮齿根圆的直径为df,则当df-d≤6~7mn时,应采用这种结构。而当df-d>6~7mn时,采用齿轮与轴分开为两个零件的结构,如低速轴与大齿轮。此时齿轮与轴的周向固定平键联接,轴上零件利用轴肩、轴套和轴承盖作轴向固定。两轴均采用了深沟球轴承。这种组合,用于承受径向载荷和不
The small gear is integrated with the shaft and is called a gear shaft. This structure is used when the diameter of the gear is not closely related to the diameter of the shaft. If the diameter of the shaft is d and the diameter of the gear root circle is df, then this structure should be used when df-d ≤ 6-7mn. When df-d>6-7mn, a structure is adopted where the gear and shaft are separated into two parts, such as a low-speed shaft and a large gear. At this time, the gear is connected to the shaft with a circumferential fixed flat key, and the parts on the shaft are axially fixed using the shaft shoulder, shaft sleeve, and bearing cover. Both shafts are equipped with deep groove ball bearings. This combination is used to withstand radial loads and not
大的轴向载荷的情况。当轴向载荷较大时,应采用角接触球轴承、圆锥滚子轴承或深沟球轴承与推力轴承的组合结构。轴承是利用齿轮旋转时溅起的稀油,进行润滑。箱座中油池的润滑油,被旋转的齿轮溅起飞溅到箱盖的内壁上,沿内壁流到分箱面坡口后,通过导油槽流入轴承。当浸油齿轮圆周速度υ≤2m/s时,应采用润滑脂润滑轴承,为避免可能溅起的稀油冲掉润滑脂,可采用挡油环将其分开。为防止润滑油流失和外界灰尘进入箱内,在轴承端盖和外伸轴之间装有密封元件。
In the case of large axial loads. When the axial load is large, a combination structure of angular contact ball bearings, tapered roller bearings, or deep groove ball bearings and thrust bearings should be used. Bearings are lubricated using the thin oil splashed up during gear rotation. The lubricating oil in the oil pool in the box seat is splashed onto the inner wall of the box cover by the rotating gear, flows along the inner wall to the groove of the distribution box surface, and then flows into the bearing through the oil guide groove. When the circumferential speed of the immersed gear υ≤ At a speed of 2m/s, lubricating grease should be used to lubricate the bearings. To avoid the possibility of splashing thin oil washing away the lubricating grease, oil blocking rings can be used to separate them. To prevent lubricating oil loss and external dust from entering the box, a sealing element is installed between the bearing end cover and the extended shaft.


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