Planet transmission system and arrangement method thereof

Abstract

A planet transmission system comprises a planet frame, a sun gear mounted on the planet frame, a gear ring and a planet gear unit composed of N sets of planet gears, the N sets of planet gears are mounted on the planet frame and engaged between the sun gear and the gear ring, and N is larger than or equal to 3; the planet frame is provided with N supporting columns along the periphery, a set of planet gears is arranged between every two adjacent supporting columns, each set of planet gears is composed of n tightly-adjacent planet gears, and n is larger than or equal to 2. The planet transmission system can meet the requirement for large torque, the problem of the contradiction between the transmission ratio and the layout space is solved, and the strength of the planet frame is improved.

Description

technical field [0001] The invention belongs to the technical field of planetary transmission, and relates to a planetary transmission system and an arrangement method thereof. Background technique [0002] In the traditional planetary transmission system, such as image 3 As shown, the planetary gears are spaced one by one between the support columns 3 of the planetary frame. When it is necessary to increase the strength of the planetary gears, it is usually necessary to increase the number of planetary gears, but in practice, when the number of planetary gears is greater than or equal to 6 , due to the contradiction between the transmission ratio and the layout space, it is extremely easy to cause the space between the planetary wheels to be too small, which affects the design strength of the planetary frame, especially the support column, so that the desired design scheme cannot be realized. For example, if figure 2 As shown, when six planetary gears are arranged, the a...

AI Technical Summary

Problems solved by technology

[0002] In the traditional planetary transmission system, such as image 3 As shown, the planetary gears are spaced one by one between the support columns 3 of the planetary frame. When it is necessary to increase the strength of the planetary gears, it is usually necessary to increase the number of planetary gears, but in practice, when the number of planetary gears is greater than or equal to 6 , due to the contradiction between the transmission ratio and the layout space, it is extremely easy to cause the space between the planetary wheels to be too small, which will affect the design strength of the planetary frame, especially the support column, so that the desired design scheme cannot be realized

For example, if figure 2 As shown, when six planetary gears are arranged, the angle between adjacent planetary gears is basically θ, which results in a narrow space between adjacent planetary gears, and it is difficult to set up supporting columns, even if supporting columns are set up, their strength is low It is difficult to meet the overall requirements of the planetary framework

Images