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行星减速电机怎么处理才能达到更好的结果

来源:http://www.jnmcd.com 发布时间:2019-06-21 浏览:
行星齿轮传动装置的重量,一般情况下正比于齿轮的重量,减速电机而齿轮的重量与其材料和热处理硬度有很大关系。例如在相同功率下,渗碳淬火齿轮的重量将是调质齿轮重量的1/3左右。所以针对行星齿轮减速机的结构特点和齿轮的载荷性质,应该广泛采用硬齿面齿轮。获得硬齿面齿轮的热处理方法很多,如表面淬火,整体淬火、渗碳淬火、渗氮等,应根据行星齿轮减速机的特点考虑选定。
The weight of planetary gear transmission device is proportional to the weight of gear in general. The weight of reducer motor and gear has a great relationship with its material and heat treatment hardness. For example, under the same power, the weight of carburized quenched gear will be about one third of the weight of quenched and tempered gear. Therefore, according to the structural characteristics of planetary gear reducer and the load characteristics of gears, hard gear should be widely used. There are many heat treatment methods to obtain hard surface gear, such as surface quenching, whole quenching, carburizing quenching, nitriding and so on, which should be selected according to the characteristics of planetary gear reducer.
1、表面淬火
1. Surface hardening
常见的表面淬火方法有高频淬火(对小尺寸齿轮)和火焰淬火(对大尺寸齿轮)两种。表面淬火的淬硬层包括齿根底部时,其效果最好。表面淬火常用材料为碳的质量分数约0.35%~0.5%的钢材,齿面硬度可达45~55HRC。
The common surface quenching methods are high frequency quenching (for small size gears) and flame quenching (for large size gears). When the hardened layer of surface hardening includes the bottom of the tooth root, the effect is the best. The common material for surface hardening is steel with carbon content of about 0.35%~0.5%. The hardness of tooth surface can reach 45~55HRC.
2、渗碳淬火
2. Carburizing and Quenching
渗碳淬火齿轮具有相对最大的承载能力,但必须采用精加工工序(磨齿)来消除热处理变形,以保证精度。
Carburized and quenched gears have relatively maximum load-bearing capacity, but finishing process (grinding) must be used to eliminate heat treatment deformation to ensure accuracy.
渗碳淬火齿轮常用渗碳前碳的质量分数为0.2%~0.3%的合金钢,其齿面硬度常在58~62HRC的范围内。若低于57HRC时,齿面强度显著下降,高于62HRC时则脆性增加。轮齿心部硬度一般以310~330HBW为宜。渗碳淬火齿轮的硬度,从轮齿表面至深层应逐渐降低,而有效渗碳深度规定为表面至深层应逐渐降低,而有效渗碳深度规定为表面至硬度52.5HRC处的深度。
山东自动门电机
Alloy steel with 0.2%~0.3% carbon content before carburizing is commonly used for carburizing quenching gears, and its hardness is usually in the range of 58~62HRC. If the strength of tooth surface is lower than 57 HRC, the brittleness increases when the strength is higher than 62 HRC. The core hardness of gear teeth is generally 310 ~ 330 HBW. The hardness of carburized and quenched gears should be gradually reduced from the surface to the deep layer, while the effective carburizing depth should be gradually reduced from the surface to the deep layer, while the effective carburizing depth should be defined as the depth from the surface to the hardness 52.5 HRC.
渗碳淬火在轮齿弯曲疲劳强度方面的作用除使心部硬度有所提高外,还在于有表面的残余压应力,它可使轮齿最大拉应力区的应力减小。因此磨齿时不能磨齿根部分,滚齿时要用留磨量滚刀。
The effect of carburizing and quenching on the bending fatigue strength of gear teeth not only improves the hardness of the center, but also relies on the residual compressive stress on the surface, which can reduce the stress in the maximum tensile stress zone of gear teeth. Therefore, when grinding teeth, the root part of the teeth cannot be grinded. When hobbing teeth, the retained abrasion hob should be used.
3、渗氮
3. Nitriding
采用渗氮可保证轮齿在变形最小的条件下达到很高的齿面硬度和耐磨性,热处理后可不再进行最后的精加工,提高了承载能力。这对于不易磨齿的内齿轮来说,具有特殊意义。
The hardness and wear resistance of the tooth surface can be guaranteed by nitriding under the condition of minimal deformation. After heat treatment, the final finishing can not be carried out and the bearing capacity can be improved. This is of special significance for internal gears which are not easy to grind teeth.
4、想啮合齿轮的硬度组合
4. Hardness Combination of Gears for Meshing
当大、小齿轮均为软齿面时,小齿轮的齿面硬度应高于大齿轮。而当两轮均为硬齿面且硬度较高时,则取两轮硬度相同。
When both big and small gears have soft tooth surfaces, the hardness of small gears should be higher than that of big gears. When the hardness of both wheels is higher, the hardness of the two wheels is the same.
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