Short tube flexible gear harmonic reducer of rigid wheel tooth dip angle and transmission rigidity testing device thereof

A harmonic reducer and flex wheel technology, applied in the field of short-tube flex wheel harmonic reducer and its transmission stiffness testing device, can solve the problem of reduced transmission stiffness, complicated operation process, between the teeth of the rigid wheel and the teeth of the flex wheel. Reduce the contact area and other problems to achieve the effect of improving the transmission rigidity, increasing the contact area, and improving the meshing effect.

Active Publication Date: 2012-11-14
DONGGUAN RICHTEK ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at reducing the contact area between the rigid spline teeth and the flexspline teeth due to the deflection of the flexspline teeth caused by the reduction of the axial dimension of the short-tube flexspline harmonic reducer, resulting in a decrease in the transmission stiffness problem; the present invention also aims to solve the problem that the existing harmonic drive stiffness experiment testing device uses weights to load the existing complicated operation process; and further provides a short-tube flexible spline harmonic reducer with an inclination angle of the rigid sprocket teeth And its transmission stiffness testing device

Method used

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  • Short tube flexible gear harmonic reducer of rigid wheel tooth dip angle and transmission rigidity testing device thereof
  • Short tube flexible gear harmonic reducer of rigid wheel tooth dip angle and transmission rigidity testing device thereof
  • Short tube flexible gear harmonic reducer of rigid wheel tooth dip angle and transmission rigidity testing device thereof

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specific Embodiment approach 1

[0016] Specific implementation mode one: as Figure 1~2 As shown, the short tube flex spline harmonic reducer with inclination angle of the rigid wheel teeth described in this embodiment includes a rigid spline 15 with inclination teeth, a flex spline 13 and a wave generator 16, and the wave generator 16 is installed on the flex spline. Inside the wheel 13, the rigid spline 15 with inclination teeth is set on the flex spline 13, and the internal teeth on the rigid spline 15 with inclination angle mesh with the external teeth on the flex spline 13; the flex spline 13 has an aspect ratio of 1 / 4 to 3 / 5 of the flexible spline, the rigid spline 15 with the inclination angle of the tooth is the tooth with an inclination angle α along the axis of the rigid spline, and the inclination direction of the inclination angle α is the same as that of the flexspline at the long axis. The direction of opening angle is the same, and the inclination angle α is 0.1°~1°.

specific Embodiment approach 2

[0017] Specific implementation mode two: as Figure 1~2 As shown, the harmonic reducer in this embodiment also includes an input shaft 1, an output shaft 5, an input end cover 2, an input end housing 3, an output end cover 7, an output end housing 6, two input shafts Angular contact bearing 17, input shaft bearing inner ring gasket 18, input shaft bearing outer ring gasket 19, two output shaft angular contact bearings 9, output shaft bearing inner ring gasket 10, output shaft bearing outer ring gasket 11, The baffle plate 14 and the pressure plate 12, the input shaft spring retainer 20 and the output end spring retainer 8; the rigid wheel 15 with the inclination of the gear teeth is fixed on the input end housing 3 and the output end housing 6, and the input shaft 1 and the wave generation The device 16 is connected by the key 4, and the flexible spline 13 is fastened on the output shaft 5 by the screw 21 and the pressure plate 12; two input shaft angular contact ball bearings...

specific Embodiment approach 3

[0019] Specific implementation mode three: as Figure 1~4As shown, this embodiment is the transmission stiffness testing device of the short-tube flexible wheel harmonic reducer described in the second specific embodiment. The transmission stiffness testing device includes a base plate 31, a motor support base 38, a servo motor 39, a rigid coupling Device 36, harmonic reducer support seat 43, left lock clamping end 32 and right clamping lock end 41, motor support base 38 is fixed on the base plate 31, servo motor 39 is fixed on the motor support base 38, servo motor The motor shaft 37 of 39 is fixedly connected with the input shaft 1 through the rigid coupling 36, the harmonic reducer is fixed on the harmonic reducer support base 43, and the harmonic reducer support base 43 is fixed on the base plate 3-1 , the output shaft 5 of the harmonic reducer is clamped and locked by the left clamping end 32 and the right clamping end 41 through the lower clamping screw 40 and the lower ...

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Abstract

The invention discloses a short tube flexible gear harmonic reducer of a rigid wheel tooth dip angle and a transmission rigidity testing device thereof, and relates to the technical field of harmonic reducers. According to the invention, the deflection of the flexible wheel gear teeth is caused by the reduction of the axial size of the short tube flexible gear harmonic reducer, so as to realize the reduction of the surface area between the rigid wheel gear teeth and the flexible wheel gear teeth, and to realize the lowering of the transmission rigidity; the problem of complicated operating process of the existing harmonic drive rigidity experiment testing device is solved; and the length diameter ratio of a soft wheel is 1/4 to 3/5 of a short tube wheel, the inner wheel of the rigid wheel with a dip angle is the wheel teeth with the dip angle alpha along the rigid wheel axial direction, and the deflection direction and the field angle direction of the soft wheel on a long shaft are coincident. The transmission rigidity testing device of the short tube flexible gear harmonic reducer implements current control namely torque control through a computer and a servo driver, and the harmonic drive output end realizes continuous loading unloading; and the harmonic drive rigidity of the short tube soft wheel is obtained, and the transmission rigidity is serially, rapidly accurately obtained.

Description

technical field [0001] The invention relates to a short-tube flexible wheel harmonic reducer and a transmission stiffness testing device thereof, and relates to the technical field of harmonic reducers. Background technique [0002] Harmonic gear transmission is a reducer that relies on the elastic deformation of flexible gears to achieve force and motion transmission. The cylindrical harmonic reducer is composed of three components: a wave generator, a rigid wheel and a flexible wheel. Usually, the rigid spline is fixed, and the wave generator is an elliptical component, which is installed inside the flexspline, forcing the flexspline to deform radially at the end of the long axis into an ellipse according to certain rules. When the wave generator rotates under the drive of the prime mover, the flexible spline is continuously deformed, and the teeth of the flexible spline gradually enter the space between the teeth of the rigid spline during the deformation process, mesh w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H55/17G01M13/02
Inventor 吴伟国于鹏飞
Owner DONGGUAN RICHTEK ELECTRONICS CO LTD
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