皮带跑偏原因及纠正措施

胶带跑偏原因及纠正措施

一、导致皮带跑偏的主要因素

1、胶带的结构、类型和工作条件（机架地基出现不均匀沉降、风霜雨雪的影响）

2、由驱动和张紧装置所传递的功率和张力大小

3、胶带接头对准程度

4、非承载面存在灰尘和水

5、加载方向和落料点是否对中

二、各种跑偏原因及对策措施

1、所有胶带在机架的某一部位向一侧跑偏。

One or more idlers immediately preceding trouble point not at right angles to the direction of belt travel.一个或多个拖辊在前述故障点上延胶带运动方向角度不正

Advance, in the direction of belt travel, the end of the idler

to which the belt has shifted. Square idlers.首先延着胶带

运动方向，对胶带跑偏的哪一侧托辊进行方形校正

Conveyor frame or structure crooked.皮带机架弯曲

Stretch string along edge to determine extent and make

correction.沿机架边缘拉一条直线来判断弯曲程度，然后

进行校正。

One or more idler stands not centered under belt.一个或多个拖

辊不正

Center them. Same as above.校正拖辊

Sticking idlers.拖辊粘滞

Clean and lubricate.清理和润滑拖辊

Belt runs off terminal pulley.

Check terminal pulley assignment. Check alignments of

idlers approaching terminal pulley.

Build up of material on idlers.物料粘结在拖辊表面

Clean them. Install cleaning device.清洗掉物料安装

清理设备

Structure not level and belt tends to shift to low side.机架不平导

致皮带向较低一侧偏移

Level structure.调平机架

2、胶带的某一段沿整机向一侧跑偏。

Belt not joined squarely.皮带接头不正

Square ends/resplice.调正接头

Bowed belt.皮带弯卷

Tension it or replace.张紧皮带或更换

3、胶带在较长距离一段机架位置向一侧跑偏。

Load being placed on belt off-center.落料点偏离皮带中心

Adjust chute and loading conditions so as to place load in

the center of belt.调整溜槽或落料点使物料落在皮带中心Conveyor frame or structure crooked.皮带机架弯曲

Straighten it.调直机架

4、胶带无规律跑偏。

Belt too stiff to train.皮带太硬无法调整

Use self-aligning idlers. Increase tension/conforms to

crowns. Use more flexible belt on replacement.采用自调

偏拖辊增大牵引力用柔韧性好的皮带替换

Tilt troughing idlers forward, but not over 2 degrees. Use more

troughable belt.槽形拖辊向前翘起，但不超过2度需用更多的

槽形拖辊

Combination of causes listed under Paragraphs 2 and 3.

Correct loading first. Other causes can then be identified and

corrected.首先调整落料点，然后再考虑其它办法

三、整机纠偏顺序

The basic, and primary rule of tracking a conveyor belt is simply "THE BELT MOVES TOWARD THAT END OF THE ROLL IT CONTACTS FIRST."检查胶带首要的、基本的原则是“胶带朝与托辊最先接触的一端运动”

The NORMAL SEQUENCE of training is to start with the return run, working toward the tail pulley; following with top run in the direction of belt travel. Start with the belt empty. After tracking is completed, run the belt with a full load and re-check tracking.检查胶带的正常顺序是先从下皮带开始，向机尾处检查；随后延皮带运行方向检查上皮带。先空

载检查，之后再带载检查。

TRACKING ADJUSTMENT is done while the belt is running and should be spread over some length of the conveyor preceding the region of trouble. Permit the belt to run for several minutes and at least three full belt revolutions after idler has been adjusted to determine if additional adjustment is required. If the belt has over-corrected, it should be restored by moving back the same idler, and not be shifting additional idlers or rollers.应在皮带运行时对前述故障区域进行调整，在拖辊调整后如还需进行额外调整，皮带应先运行至少三圈。如果皮带调整过头，需要及时对所调过的拖辊进行恢复，不能调整其它拖辊或辊筒。

enlarge

#1 Conveyor troughing idlers are offered in a wide variety of styles. Troughing angles include 20°, 35°, & 45°. The stands are primarily two (2) types and vary with each manufacturer.皮带槽形托辊有多种类型。槽角有20°、35°和45°。常用的主要有两种，随制造商不同而变化

1. "Straight" (over 90°) This stand has no tilt, and is designed for the conveyor belts to run in both directions.It has no real assist in belt tracking

1、“直角托辊架”（90°）这种托辊架与机架垂直，不向前倾，适用于双向运行皮带。在皮带调整方面没有多大作用.

2. "Tilted" (2°) In the di rection of belt travel. Conveyor belts are to run in this direction only. The 2° tilt offers good results in conveyor belt tracking.

2、“带倾角托辊架”在皮带运行方向上，皮带只能在倾斜方向运行。这种2°的倾角在皮带运行时产生良好的效果。

enlarge

#2Straight stands can be tilted 2° forward by placing a 1/8" thick washer under the back side of idler stand indicated by arrows. Remember, this conveyor only runs in one direction.如图中箭头所示：通过在托辊后安装一个1/8"厚的垫圈，使托辊架向前倾斜2°。注意，这种皮带只能向一个方向运行

Many times on reversing conveyors, the belt runs great in one direction, only to run off when reversed. Question? What are you using? If you are using tilted stands, they are good for one direction only.大多数情况下，配置这种托辊的皮带在单一方向上运行的很好，只是在皮带反转时才出现问题。有什么问题吗？你们用的是什么托辊？如果你们正在使用倾斜托辊架，它们只会在