1) Deviation caused by sticking of roller and idler.

帶式輸送機(jī)在運(yùn)行一段時(shí)間后，由于礦料具有一定的粘性，部分礦粉會(huì)粘沾在滾筒和托輥上，使得滾筒或托輥局部筒徑變大，引起輸送帶兩側(cè)張緊力不均勻，造成輸送帶跑偏。

After the belt conveyor has been running for a period of time, some mineral powder will stick to the roller and idler due to the certain viscosity of the mineral material, which makes the local diameter of the roller or idler larger, resulting in the uneven tension on both sides of the conveyor belt and the deviation of the conveyor belt.

2）輸送帶松弛引起的跑偏。

2) Deviation caused by loose conveyor belt.

調(diào)整好的輸送帶在運(yùn)行一段時(shí)間后，由于輸送帶拉伸產(chǎn)生變形或老化，會(huì)使張緊力下降，輸送帶松弛，引起跑偏。

After the adjusted conveyor belt runs for a period of time, due to the permanent deformation or aging of the conveyor belt, the tension will drop, the conveyor belt will relax, causing deviation.

3）礦料分布不均勻引起的跑偏。

3) Deviation caused by uneven distribution of mineral materials.

如果輸送帶空轉(zhuǎn)時(shí)不跑偏，重負(fù)荷運(yùn)轉(zhuǎn)時(shí)跑偏，說(shuō)明礦料在輸送帶兩邊分布不均勻。礦料分布不均主要是礦料下落的方向和位置不正確引起的，如果礦料偏到左側(cè)，則輸送帶向右跑偏；反之亦然。

If the conveyor belt does not deviate when it is idling and deviates when it is running under heavy load, it means that the mineral material is not evenly distributed on both sides of the conveyor belt. The uneven distribution of ore material is mainly caused by the incorrect direction and position of ore material falling. If the ore material deviates to the left, the conveyor belt will deviate to the right; vice versa.

4）運(yùn)行中振動(dòng)引起的跑偏。

4) Running deviation caused by vibration during operation.

帶式輸送機(jī)在運(yùn)行時(shí)的機(jī)械振動(dòng)是不可避免的，運(yùn)行速度越快，振動(dòng)越大，造成的輸送帶跑偏的可能性也越大。在帶式輸送機(jī)中，托輥的徑向跳動(dòng)引起的振動(dòng)對(duì)輸送帶跑偏影響大。

The mechanical vibration of belt conveyor in operation is inevitable. The faster the running speed is, the greater the vibration is, and the greater the possibility of belt deviation is. In the belt conveyor, the vibration caused by the radial runout of the idler has a great influence on the belt deviation.