Axial-impact-resistant short-axial-direction crawler walking speed reducer

Abstract

The invention discloses an anti-axial-impact short-axial crawler walking speed reducer, which belongs to the technical field of engineering machinery, and is characterized in that one end of a support shaft is connected with a motor mounting flange, a main bearing pack is mounted on the outer diameter surface of the support shaft, and a bearing seat is sleeved on the outer diameter surface of the main bearing pack; the switching disc is concentrically fixed with the supporting shaft through a plurality of cylindrical pins and screws which are distributed in the radial direction, the second-stage inner gear ring is arranged at one end of the bearing seat, the end cover is arranged at the other end of the second-stage inner gear ring, and the multi-stage planetary gear row is installed on one side of the switching disc and is in transmission connection with the second-stage inner gear ring; an input shaft of the hydraulic motor is in transmission connection with the multi-stage planetary gear row and penetrates through the motor mounting flange into the supporting shaft and the adapter plate; power of the hydraulic motor sequentially passes through the hydraulic motor input shaft, the multi-stage planetary gear row and the second-stage inner gear ring to reach the bearing seat. The speed reducer can adapt to large overturning force and axial impact load, and the speed reducer is short in axial size, hidden in installation and not prone to being impacted by external force.

Description

Technical field [0001] The present invention belongs to the field of construction machinery technology, in particular to a kind of axial impact resistant to short axial track walking reducer. Background [0002] Track walking reducer is an indispensable key component of the track chassis, its role is to drive the track chassis after twisting the high-speed power reduction of the hydraulic motor, which is widely used in hydraulic excavators, track cranes, rotary drilling rigs and other construction machinery. In the vehicle steering and side slope operation, the walking deceleration opportunity is affected by a large axial load, resulting in the failure of the main bearing locking mechanism, which in turn leads to oil leakage and even inability to work; secondly, the construction machinery operating environment is harsh, especially in mining operations, if the walking reducer cannot be completely covered by the tracks, its end cover is easily hit by external objects, and the inte...

AI Technical Summary

Problems solved by technology

When the vehicle is turning or working on a side slope, the travel reducer will be impacted by a large axial load, which will cause the main bearing locking mechanism to fail, and then cause the reducer to leak oil or even fail to work; secondly, the operating environment of construction machinery is harsh, especially in mine operations. , if the travel reducer cannot be completely covered by the track, its end cover is easily hit by foreign objects, and the internal parts are abnormally compressed by the axial impact, resulting in sintering of the reducer train

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