Shenzhen Honghui Technology Hollow Harmonic Reducer Structure Theory


Release time:

2021-04-24

With the development of intelligent equipment manufacturing industry, China has become the world's largest industrial robot market for four consecutive years. As the core components of the robot precision reducer market demand is huge. The hollow harmonic gear reducer has the advantages of compact structure, high transmission accuracy and convenient for the internal threading of the robot, so it is widely used in the field of robot, but the design and research of its performance parameters are relatively scarce. To this end, the paper takes the hollow top hat type harmonic gear reducer as the research object, studies and analyzes the parameter design and optimization method of this type of harmonic drive. Firstly, according to the design criteria and empirical formula of harmonic drive, referring to the existing top hat type harmonic drive structure, the paper preliminarily designs the structural parameters of the hollow top hat type harmonic drive, and determines the value range of the main structural parameters of the flexible wheel, the rigid wheel involute tooth profile that meets the requirements of meshing accuracy is obtained by solving the simplified fitting approximation optimization algorithm, and the rigid-flexible wheel meshing motion is simulated by matlab to analyze the meshing performance of the rigid-flexible wheel. Then, the causes of the deflection of the flexible wheel teeth under the action of the wave generator and its influence on the meshing of the rigid-flexible wheel teeth are discussed, using ABAQUSE software to analyze the stress distribution of the top-hat flexspline under no-load and load conditions, to determine the position of the maximum stress, to study the degree of influence of the main structural parameters of the top-hat flexspline on the maximum stress of the flexspline through orthogonal test, and to optimize the structural parameters of the top-hat flexspline using ISIGHT software to obtain the structural parameters with the minimum maximum stress under no-load and load conditions.

With the development of intelligent equipment manufacturing industry, China has become the world's largest industrial robot market for four consecutive years. As the core components of the robot precision reducer market demand is huge. The hollow harmonic gear reducer has the advantages of compact structure, high transmission accuracy and convenient for the internal threading of the robot, so it is widely used in the field of robot, but the design and research of its performance parameters are relatively scarce. To this end, the paper takes the hollow top hat type harmonic gear reducer as the research object, studies and analyzes the parameter design and optimization method of this type of harmonic drive. Firstly, according to the design criteria and empirical formula of harmonic drive, referring to the existing top hat type harmonic drive structure, the paper preliminarily designs the structural parameters of the hollow top hat type harmonic drive, and determines the value range of the main structural parameters of the flexible wheel, the rigid wheel involute tooth profile that meets the requirements of meshing accuracy is obtained by solving the simplified fitting approximation optimization algorithm, and the rigid-flexible wheel meshing motion is simulated by matlab to analyze the meshing performance of the rigid-flexible wheel. Then, the causes of the deflection of the flexible wheel teeth under the action of the wave generator and its influence on the meshing of the rigid-flexible wheel teeth are discussed, using ABAQUSE software to analyze the stress distribution of the top-hat flexspline under no-load and load conditions, to determine the position of the maximum stress, to study the degree of influence of the main structural parameters of the top-hat flexspline on the maximum stress of the flexspline through orthogonal test, and to optimize the structural parameters of the top-hat flexspline using ISIGHT software to obtain the structural parameters with the minimum maximum stress under no-load and load conditions.
 

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