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Flat harmonic transmission device with drum-shaped gear teeth

A harmonic transmission, flat technology, applied in the direction of gear transmissions, transmissions, components with teeth, etc., can solve the problems of increasing the equivalent stress and reducing the overall strength and stiffness of the harmonic reducer, so as to improve the strength and stiffness, reduce axial dimension growth or assembly error, and avoid stress concentration

Active Publication Date: 2015-04-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to the connection error between the traditional flexible spline and the output shaft, the inclination or eccentricity of the flexible spline relative to the rigid spline will result in non-uniform tooth meshing force, which will increase the equivalent stress
These all reduce the overall strength and stiffness of the harmonic reducer

Method used

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  • Flat harmonic transmission device with drum-shaped gear teeth
  • Flat harmonic transmission device with drum-shaped gear teeth
  • Flat harmonic transmission device with drum-shaped gear teeth

Examples

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, a flat harmonic transmission device with drum-shaped gear teeth includes a rigid spline 1, a flexspline 2, a wave generator 3 and a crossed roller bearing 6, and the wave generator 3 is installed inside the cylinder of the flexspline 2. The rigid spline 1 is set on the outer ring of the flexible spline 2, the teeth of the rigid spline 1 mesh with the teeth of the flexible spline 2, the outer ring of the cross roller bearing 6 and the rigid spline 1 are connected by bolts 4, and the output shaft of the flexible spline 2 Part D is provided with threads, and the inner ring of the cross roller bearing 6 is fastened on the output shaft of the flexible spline 2 through the lock nut 5 . Such as figure 2 As shown, the middle of the flexible spline 2 is a cylinder part E, the outer ring of the cylinder part E is processed with a gear tooth...

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Abstract

A flat harmonic transmission device with a drum-shaped gear teeth comprises a flexible gear, wherein the flexible gear is divided into a gear tooth part, a barrel part and an output shaft part; the length-diameter ratio of the barrel part is 1 / 4-1 / 2; the diameter of a maximum shaft section of the output shaft part is smaller than or equal to the diameter of an outer ring of the barrel part of the flexible gear; a bolt hole is formed in the output shaft part and the output shaft part is directly connected with a subsequent execution mechanism; the diameter of a gear tooth circle of the gear tooth part of the flexible gear becomes larger and lager in a non-linear manner from a cup opening of a barrel to the axial direction of the rear end; the gear teeth of the flexible gear have the same tooth outline shape in a tooth length direction; the width of tooth grooves of gear teeth of a rigid gear continuously becomes smaller and smaller, and then continuously becomes larger and larger from the cup opening of the barrel of the flexible gear to the axial direction of the rear end. The front ends and the middle parts of the gear teeth of the flexible gear are in an engaged state so that the engagement area is enlarged and the strength and rigidity are improved.

Description

technical field [0001] The invention relates to the technical field of harmonic reducers, in particular to a flat harmonic transmission device with drum-shaped gear teeth. Background technique [0002] Harmonic transmission is generally composed of three parts: wave generator, flexible gear (referred to as flexible gear) and rigid gear (referred to as rigid gear). The wave generator is generally composed of an elliptical cam and a flexible bearing. The rotation of the elliptical cam causes the flexible bearing to generate a cycle. Sexual elastic deformation, generating drive harmonics. The flexspline is a thin-walled gear, the inner wall is closely attached to the outer wall of the wave generator, and the flexspline produces elastic deformation under the action of the wave generator. Rigid gears, like ordinary internal gears, maintain their shape during operation. Harmonic gear transmission relies on the wave generator to produce controllable elastic deformation of the fle...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H55/17
CPCF16H49/001F16H55/17
Inventor 姜歌东邹创陶涛梅雪松吴俊慧张弦
Owner XI AN JIAOTONG UNIV
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