Harmonic gear reducer

A gear reducer and harmonic technology, applied in the direction of gear transmission, belt/chain/gear, transmission, etc., can solve the problems of small meshing interval, serious stress concentration at the tooth root, and easy distortion of sharp-point meshing flexible splines , to achieve the effect of expanding the meshing area of ​​the gear teeth, reducing the stress concentration of the tooth root, and facilitating the formation of the oil film
CN105299151AActive Publication Date: 2016-02-03瑞邦智能科技(南京)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
瑞邦智能科技(南京)有限公司
Publication Date
2016-02-03

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Abstract

The invention discloses a harmonic gear reducer which comprises a flexible gear, a rigid gear and an elliptical cam wave generator. The cup bottom of the flexible gear is connected with an output shaft. The elliptical cam wave generator is connected with an input shaft. The outer wall, along the cup rim, of the flexible gear is provided with an arc-involute-arc-tooth profile. The elliptical cam wave generator is arranged on the inner wall of the cup rim of the flexible gear. The rigid gear is fixedly connected with a shell and the inner wall is provided with an arc-involute-arc-tooth profile matched with the flexible gear tooth profile. The rigid gear is connected with the flexible gear through the tooth profiles in an engaged manner. In the engagement process, the flexible gear is in continuous conjugated engagement with the rigid gear, a convex tooth profile and a concave tooth profile of the flexible gear and a concave tooth profile and a convex tooth profile of the rigid gear are located in the double-conjugation engagement interval of the conjugation motion at the same time. The harmonic gear reducer has the beneficial effects that both arc tooth-shaped harmonic driving and involute-tooth-shaped harmonic driving are achieved; and deflection driving can be achieved, the gear tooth engagement region can be enlarged, and the engagement rigidity, driving efficiency and bearing capacity of the harmonic gear reducer are improved.
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Description

technical field

[0001] The invention relates to the technical field of harmonic transmission, in particular to a harmonic gear reducer. Background technique

[0002] Harmonic transmission has many unique advantages such as simple structure, light weight, large transmission ratio range, high transmission precision, small backlash, large number of meshing teeth at the same time, and the ability to transmit motion and power to confined spaces. In recent decades, harmonic gear transmission technology and transmission devices have been widely used in space technology, machine tools, instruments, robots, automobiles, shipbuilding, textiles, metallurgy, conventional weapons, precision optical equipment, printing and packaging machinery, and medical equipment, etc. field. The application practice at home and abroad has proved that whether it is a precision harmonic drive as a high-sensitivity servo system or a power harmonic drive that transmits high torque, it has shown good perfo...

Claims

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