A two-speed planetary gearbox

A technology of planetary gearbox and planetary gear, which is applied in the direction of gear transmission, belt/chain/gear, transmission, etc., can solve the problems of low speed, large feed, high torque, etc., and achieve low noise, stable work, Power maintains improved effect

Active Publication Date: 2021-08-24
周凯
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Modern machine tools driven by variable frequency motors are usually directly driven by the variable frequency motor connected to the machine tool spindle. Although the variable frequency motor can adjust the speed, it often cannot meet the requirements of low speed, large feed, and high torque when cutting large blanks.

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  • A two-speed planetary gearbox
  • A two-speed planetary gearbox
  • A two-speed planetary gearbox

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Embodiment Construction

[0029] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following will further explain how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0030] Such as figure 1 and figure 2 As shown, the present invention provides a two-speed planetary gearbox, including a housing 4 and an input shaft 1, an intermediate shaft 2, an output shaft 3, a clutch 5, a coupling 6, a sun gear 7, Planetary gear 8, planetary gear support 9 and internal gear 10; Internal gear 10 is fixed on the housing 4;

[0031] The planetary gear 8, the planetary gear bracket 9 on which the planetary gear 8 is installed, and the sun gear 7 meshing with the planetary gear 8 and the internal gear 10 cooperate with each other to form a planetary reduction mechanism;

[0032] One end of the input shaft 1 is passed through the sun gear 7 and rotates inside the su...

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Abstract

The invention discloses a two-speed planetary gearbox, which includes a casing, in which an input shaft, an intermediate shaft, an output shaft, and a planetary gear, a planetary gear bracket, and a sun gear and an internal gear meshed with the planetary gear are arranged. Cooperate to form a planetary reduction mechanism; the inner end of the input shaft is passed through the sun gear and rotates in the sun gear, and the side of the planetary reduction mechanism away from the input shaft is provided with a coupling; the inner end of the output shaft is covered with a clutch that matches the coupling One end of the clutch close to the input shaft is connected to one end of the intermediate shaft; the other end of the intermediate shaft passes through the sun gear and is inserted into the inner end of the input shaft; the clutch is also connected to the hydraulic or pneumatic cylinder set in the housing, hydraulic or pneumatic The oil cylinder controls the intermediate shaft connected with the clutch so that it is alternately connected with the output shaft and the sun gear respectively. The gear box provided by the invention not only realizes direct high-speed transmission and low-speed transmission via planetary gears, but also improves its performance in terms of temperature rise, noise, smoothness, power retention and the like.

Description

technical field [0001] The invention relates to the field of machine tool functional components, in particular to a two-speed planetary gearbox. Background technique [0002] Modern machine tools driven by variable frequency motors are usually directly driven by the variable frequency motor connected to the machine tool spindle. Although the variable frequency motor can adjust the speed, it often cannot meet the requirements of low speed, large feed, and high torque when cutting large blanks. [0003] The patent publication number is CN 104653726 B, and the name is an invention patent of a two-stage planetary transmission. The invention discloses a two-stage planetary transmission, which includes an input shaft, an output shaft, a housing, and a fixed bracket. The input shaft is processed with The sun gear cooperates with the planetary gear and the internal gear fixed on the housing to form a planetary reduction mechanism. A planetary gear bracket with internal teeth is arra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32F16H57/028F16H57/08
CPCF16H1/32F16H57/028F16H57/08
Inventor 周凯
Owner 周凯
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