Double-grade combined type planetary gear driving structure

Abstract

The invention discloses a double-stage combined planetary gear transmission structure, which includes a casing and a first-stage planetary gear structure and a second-stage planetary gear structure inside it. The input shaft is inserted into the center of the first-stage planetary gear structure from the right side of the casing The teeth of each first-stage planetary gear are connected, and the input shaft is provided with bearing 1 at the place where the input shaft enters the casing. The planetary gear teeth are connected, and the rotating shafts of each secondary planetary wheel are respectively fixedly connected with the secondary planetary carrier. The left end of the input shaft passes through the structure of the primary planetary gear and is inserted into the right end of the primary planetary frame, and a second bearing is arranged between them. Realize rotary connection. In the present invention, the left end of the input shaft is inserted into the first-stage planet carrier and connected by rotation, which ensures the coaxiality between the first-stage planet carrier and the input shaft, solves the problem of the cantilever at the left end of the input shaft, and reduces vibration, thereby effectively extending the deceleration machine service life.

Description

technical field [0001] The invention relates to the technical field of gear transmission, in particular to a double-stage combined planetary gear transmission structure, which is suitable for a reducer of extruder equipment in the brick and tile industry. Background technique [0002] In the existing two-stage planetary reducer, after the input shaft enters the casing of the reducer, its end is connected with the gear teeth of each first-stage planetary gear, and the input shaft is also connected with the casing through a bearing. In order to maintain the stability of the first-level planet carrier, a fixed bearing is specially set between the input shaft and the casing to keep the first-level planet carrier stable. [0003] In the process of use and maintenance, the applicant found that this existing two-stage planetary reducer has the following shortcomings: [0004] 1. The input shaft has only one bearing to fix it on the casing, but because of the large force on the end...

AI Technical Summary

Problems solved by technology

[0004] 1. The input shaft has only one bearing to fix it on the casing, but because of the large force at the end and obvious vibration, it is easy to break down everywhere and affect the service life of the reducer;

[0005] 2. Fixed bearings are installed between the first-level planet carrier and the casing, the structure is huge and bloated, and even after the casing is disassembled, due to the existence of this fixed bearing, further inspection and maintenance must be completely disassembled, which is very inconvenient

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