Unlock instant, AI-driven research and patent intelligence for your innovation.

Harmonic reducer for improved transmission accuracy

A technology of harmonic reducer and transmission accuracy, which is applied in transmission devices, gear transmission devices, mechanical equipment, etc., and can solve problems such as fretting wear and affecting transmission accuracy

Active Publication Date: 2018-04-24
HIWIN TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the flexible external gear will become elliptical after being inserted into the wave generator, the inner ring surface of the flexible external gear will experience fretting wear during the power transmission process, so under long-term use It will affect the transmission accuracy. In order to solve the above problems, the Japanese Patent No. 6-19872 mainly processes a concave portion on the end face of the bearing outer ring of the wave generator. There is a specific ratio between this concave portion and the width of the flexible external gear. , so that the flexible external gear can reduce the thrust generated by the wave generator during assembly through the concave part of the wave generator to reduce the fretting wear, but the effect of improving it in actual use is quite limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Harmonic reducer for improved transmission accuracy
  • Harmonic reducer for improved transmission accuracy
  • Harmonic reducer for improved transmission accuracy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Please see first figure 1 , The harmonic reducer 10 of the present invention includes a rigid internal gear 20 , a flexible external gear 30 , and a wave generator 40 .

[0022] The rigid internal gear 20 has an inner ring tooth portion 22 , the flexible external gear 30 is arranged in the rigid internal gear 20 and has an outer ring tooth portion 32 , the outer ring tooth portion 32 corresponds to the inner ring tooth portion 22 of the rigid internal gear 20 . It needs to be added here that the number of teeth of the inner ring tooth portion 22 of the rigid internal gear 20 is two teeth more than the number of teeth of the outer ring tooth portion 32 of the flexible external gear 30, and the rigid internal gear 20 and the flexible external gear 30 have the same modulus, and the modulus referred to here is the quotient obtained by dividing the pitch diameter of the gear by the number of teeth.

[0023] The wave generator 40 is arranged in the flexible external gear 30...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A harmonic wave decelerator comprises a rigid internal gear, a flexible external gear engaged to the rigid internal gear and a wave generator abutted against the external gear. The external periphery of the wave generator is designed into a variable curvature surface via special parameter setting to increase a contact area between the wave generator and the flexible external gear; and due to the increase of the contact area, tender moving abrasion of the wave generator after installation to the flexible external gear can be improved and transmission efficiency can be improved and sluggish error can be reduced.

Description

technical field [0001] The invention relates to a harmonic reducer, in particular to a harmonic reducer capable of improving transmission precision. Background technique [0002] The harmonic reducer is a reduction device with a high reduction ratio. In the known structural configuration, it mainly includes a rigid internal gear, a flexible external gear rotatably arranged in the rigid internal gear, and a rotatable The wave generator installed in the flexible external gear, when the wave generator is assembled on the flexible external gear, the flexible external gear will be pushed up by the outer peripheral edge of the wave generator to become an ellipse, thus, when the wave When the generator is driven by the power source and starts to rotate, the rigid internal gear and the flexible external gear can be completely engaged at the long axis of the wave generator, and will be completely disengaged at the short axis of the wave generator. There is a difference in the number...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32
Inventor 蔡翼鸿粘芳绫
Owner HIWIN TECH