Non-sliding parallel shaft line gear mechanism with separable center distance

A technology of gear mechanism and center distance, applied in gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of lack of center distance separability, center distance error affecting the performance of line gear transmission, etc.
CN113280081APending Publication Date: 2021-08-20SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2021-08-20

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Abstract

The invention discloses a non-sliding parallel shaft line gear mechanism with separable center distance. The mechanism comprises a transmission pair composed of a pair of parallel shaft line gears, including a driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are each composed of a wheel body and line teeth, and the tooth profile of the end face of the line teeth is an eccentric arc tooth profile designed in a parameterized mode. The line gear mechanism can realize continuous and stable non-sliding transmission under different center distance conditions within a certain range, so that the transmission ratio of line gear transmission is irrelevant to the center distance of the two gears, the transmission ratio is not affected by errors of the center distance, the influence of the errors of the center distance on transmission performance is reduced, and the mechanism is particularly suitable for occasions such as micro-transmission in which the assembly precision is difficult to ensure and the requirements on the transmission performance are high.
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Description

technical field

[0001] The invention relates to the field of mechanical transmission, in particular to a parallel axis gear mechanism with no sliding and separable center distance. Background technique

[0002] The transmission ratio of the gear transmission has nothing to do with the center distance of the two gears, and the transmission ratio is not affected by the error of the center distance. This is the separability of the center distance of the gear transmission. At present, only involute gears are separable gears, and the rest of the gears are not separable. For involute gear pairs, increasing the center distance will lead to a decrease in the degree of coincidence. For arc gears, the center distance error greatly affects the transmission performance of the arc gear; for the gear pair with cycloidal profile, the center distance error greatly affects the transmission performance of the gear. All in all, for the gear pair whose center distance is inseparable, the cent...

Claims

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