螺旋輸送機(jī)斷軸的內(nèi)在因素主要包括如下幾個(gè)方面：

The internal factors of the broken shaft of screw conveyor reducer mainly include the following aspects:

1、減速機(jī)設(shè)計(jì)時(shí)軸斷裂處應(yīng)力過(guò)大。

1、the stress of shaft rupture is too large when the reducer is designed.

2、減速機(jī)輸入軸處軸肩處未細(xì)致考慮過(guò)渡圓角的曲率半徑和變化曲線使應(yīng)力集中嚴(yán)重發(fā)生疲勞破壞。

2、the curvature radius and the change curve of the transition fillet at the shoulder of the input shaft of the reducer are not carefully considered.

3、減速機(jī)為垂直軸形式，第一級(jí)輸入軸為傘齒輪軸，在傘齒輪支承軸承處過(guò)渡軸肩處出現(xiàn)較嚴(yán)重的應(yīng)力集中而發(fā)生疲勞破壞。

3、the reducer is in the form of vertical shaft, the first input shaft is the bevel gear shaft, and the more serious stress concentration occurs at the transition shaft of the bevel gear bearing.

4、減速機(jī)為硬齒面減速機(jī)，減速機(jī)輸入軸直徑較細(xì)，雖然計(jì)算強(qiáng)度時(shí)通過(guò)，因軸本身很細(xì)，同樣在軸直徑變化處應(yīng)力集中嚴(yán)重并發(fā)生疲勞破壞。

4、reducer for Hardened reducer, reducer input shaft diameter is small, although by calculating the strength, because the shaft itself is very small, in the same shaft diameter changes the stress concentration and serious fatigue failure.

5、輸入軸的熱處理質(zhì)量不合格。

5、input shaft heat treatment quality is not qualified.