Full-mechanical forward-and-reverse-rotation gearbox

Abstract

A full-mechanical forward-and-reverse-rotation gearbox comprises a gearbox body, a non-circular gear, an input shaft, a planet carrier, an inner gear ring, a planet gear, a sun gear, an output shaft and the like. A two-stage planet gear train transmission structure is adopted, the first stage is a non-circular gear planet gear train, and the second stage is a circular gear planet gear train. When the gearbox works, movement is input through the input shaft and output through the output shaft after gear engagement of the gearbox. When the input is continuous and unidirectional, the output is in forward and reverse rotation directions; forward and reverse rotation angular velocities and angular accelerations as well as forward and reverse rotation angles of the output shaft can be changed through change of the pitch curve shape of the non-circular gear or matching of planet gear train gears. Through shafts and a symmetrical structure are adopted. The gearbox is low in manufacturing cost, convenient to maintain and suitable to work in severe environments with high power, high loads and the like for a long time.

Description

technical field [0001] The invention belongs to the technical field of machinery, and in particular relates to an all-mechanical positive and negative gear box. Background technique [0002] Forward and reverse rotation is a relatively common mechanical operating state, which is usually realized by electronic control switching or servo mechanism. For example, the most common method is to change the running direction of the motor through a switch; It is realized in a mechanical way, but it is also inseparable from the control mechanism. [0003] It is feasible in some occasions to realize forward and reverse rotation through electronic control switching or servo mechanism; but it is not feasible in some occasions, such as in high-power and heavy-load occasions. [0004] For a high-power motor, it is almost unimaginable to keep it in a working condition that requires frequent starting and reversing for a long time, and the high-power motor needs 5-7 times the starting current...

AI Technical Summary

Problems solved by technology

[0006] Therefore, it is difficult to meet the requirements of high power, heavy load and long life according to the existing electronically controlled or mechanical forward and reverse equipment or devices.

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