Factors Affecting the Life of Harmonic Reducer


Release time:

2021-04-24

There are many factors that affect the life of the reducer, and the gear in the harmonic reducer is the key. First of all, the choice of gear material of harmonic reducer: the gear should be selected according to the working conditions of use. The choice of gear material has a direct impact on the processing performance and service life of the gear. General gear selection of carbon steel (such as 45 steel) and low and medium carbon alloy steel, such as 20Cr, 40Cr, 20CrMnTi and so on. 38CrMoAlA nitrided steel can be used for important gears with higher requirements, and materials such as cast iron, bakelite or nylon can also be used for non-transmission gears. Secondly, the heat treatment of gears, gear processing according to different purposes, arrange two heat treatment processes: 1) Blank heat treatment: in the tooth blank processing before and after the arrangement of pre-heat treatment normalizing or quenching and tempering, the main purpose is to eliminate. In addition to the residual stress caused by forging and rough machining, the machinability of the material is improved and the comprehensive mechanical properties are improved. 2) tooth surface heat treatment: after tooth profile processing, in order to improve the hardness and wear resistance of the tooth surface, often carburizing quenching, High-frequency induction heating quenching, carbon-nitrogen co-penetration and nitrogen seepage and other heat treatment processes. Third, the gear blank: the gear blank form is mainly bar, forgings and castings. Bar stock for small size, A gear with a simple structure and low requirements for strength. When the gear requires high strength, wear resistance and impact resistance, multi-use forging Parts, the diameter is greater than 400~600mm gear, commonly used casting blank. In order to reduce the amount of mechanical processing, the large Size, low precision gear, can be directly cast out of the gear teeth; for small size, complex shape of the gear, available fine New processes such as dense casting, pressure casting, precision forging, powder metallurgy, hot rolling and cold extrusion to manufacture wheels. The tooth blanks of the teeth are used to improve labor productivity and save raw materials.

There are many factors that affect the life of the reducer, and the gear in the harmonic reducer is the key.

First of all, the choice of gear material of harmonic reducer: the gear should be selected according to the working conditions of use. The choice of gear material has a direct impact on the processing performance and service life of the gear.

General gear selection of carbon steel (such as 45 steel) and low and medium carbon alloy steel, such as 20Cr, 40Cr, 20CrMnTi and so on. 38CrMoAlA nitrided steel can be used for important gears with higher requirements, and materials such as cast iron, bakelite or nylon can also be used for non-transmission gears.

Secondly, the heat treatment of gears, gear processing according to different purposes, arrange two heat treatment processes:

1) Blank heat treatment: in the tooth blank processing before and after the arrangement of pre-heat treatment normalizing or quenching and tempering, the main purpose is to eliminate.

In addition to the residual stress caused by forging and rough machining, the machinability of the material is improved and the comprehensive mechanical properties are improved.

2) tooth surface heat treatment: after tooth profile processing, in order to improve the hardness and wear resistance of the tooth surface, often carburizing quenching,

High-frequency induction heating quenching, carbon-nitrogen co-penetration and nitrogen seepage and other heat treatment processes.

Third, the gear blank: the gear blank form is mainly bar, forgings and castings. Bar stock for small size,

A gear with a simple structure and low requirements for strength. When the gear requires high strength, wear resistance and impact resistance, multi-use forging

Parts, the diameter is greater than 400~600mm gear, commonly used casting blank. In order to reduce the amount of mechanical processing, the large

Size, low precision gear, can be directly cast out of the gear teeth; for small size, complex shape of the gear, available fine

New processes such as dense casting, pressure casting, precision forging, powder metallurgy, hot rolling and cold extrusion to manufacture wheels.

The tooth blanks of the teeth are used to improve labor productivity and save raw materials.

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