Novel double-arc harmonic tooth profile
A double-arc and arc-shaped technology, applied in the field of new double-arc harmonic tooth shape, can solve the problems of reduced load capacity, gear wear, low transmission accuracy, etc., and achieve small modulus, large number of teeth, and high transmission accuracy Effect
Pending Publication Date: 2018-10-16
JIANGMEN HUILANG IND ROBOT CO LTD +1
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Problems solved by technology
However, the involute tooth shape or the tooth shape derived from involute deformation has a gap between the tooth side and the tooth top during the meshing process, which cannot be completely meshed, which will accelerate gear wear, resulting in low transmission accuracy and reduced load capacity.
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with the accompanying drawings and examples.
[0013] like figure 1 As shown in -2, the present invention provides a new type of double arc harmonic tooth profile, which includes a rod body, including flex wheel external teeth and steel wheel inner teeth meshing with each other, the tooth shape of the flex wheel outer teeth is circular arc shape, and the steel wheel The tooth profile of the inner teeth is conjugate with the outer teeth of the flex wheel, the modulus of the outer teeth of the flex wheel and the inner teeth of the drum is 0.2697, the pressure angle is 21.75°, the number of teeth of the outer teeth of the flex wheel is 160, and the inner teeth of the drum are 160. 162 teeth. The double-arc tooth profile is different from the traditional involute tooth profile. The double-arc tooth profile replaces the involute with a circular arc segment. In addition, the tooth top is also corrected to m...
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Abstract
The invention discloses a novel double-arc harmonic tooth profile. The novel double-arc harmonic tooth profile comprises external teeth of a flexible gear and internal teeth of a steel gear, wherein the external teeth of the flexible gear mesh with the internal teeth of the steel gear; the tooth profile of the external teeth of the flexible gear is in an arc shape, and the tooth profile of the internal teeth of the steel gear is conjugate to the tooth profile of the external teeth of the flexible gear; the modulus of the external teeth of the flexible gear and the internal teeth of the steel gear is 0.2697, and the pressure angle of the external teeth of the flexible gear and the internal teeth of the steel gear is 21.75 degrees; and the number of teeth of the external teeth of the flexible gear is 160, and the number of teeth of the internal teeth of the steel gear is 162. According to the novel double-arc harmonic tooth profile, the double-arc tooth profile is different from a traditional involute tooth profile, the double-arc tooth profile replaces involute with an arc segment, and the modification operation is further carried out on tooth crests, so that the whole tooth profileis smoother and the bearing capacity of the teeth is higher.
Description
technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a novel double arc harmonic tooth profile. Background technique [0002] Harmonic gear transmission has the advantages of high transmission precision, large transmission ratio, and it can operate normally in confined spaces and radiation conditions. Therefore, harmonic gear transmission has been widely used in many fields, especially in the field of industrial robots, its main transmission task All are borne by harmonic gears. As far as the harmonic technology itself is concerned, the most prominent research results are involute harmonic gear transmission. Although the design method of the involute can meet the design indicators, the design method based on the involute has high cost, low efficiency, and limited cycle time. It is relatively long, so the promotion of harmonic reducer technology is restricted. [0003] Due to the constraints of the involute tooth t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16H55/08F16H55/17
CPCF16H55/0826F16H55/088F16H55/0886F16H55/17
Inventor 周志强戴幸平全鑫
Owner JIANGMEN HUILANG IND ROBOT CO LTD