帶式輸送機作為重要的散裝物料輸送設(shè)備，它的應(yīng)用越來越廣泛，近二十年來，我國帶式輸送機設(shè)計、制造技術(shù)得到了非常迅速發(fā)展。能夠?qū)⑽锪线\送到指定目的地的帶式輸送機傾斜角度為10°～18°，如果超過此傾斜角度，物料就會在膠帶上出現(xiàn)相對滑動，嚴(yán)重時會出現(xiàn)全部滑落，使帶式輸送機不能正常工作。深槽帶式輸送機可以很好地解決上述問題，可以實現(xiàn)大傾角運輸，結(jié)構(gòu)簡單，運行可靠。
As an important bulk material conveying equipment, belt conveyor has been used more and more widely. In recent 20 years, the design and manufacturing technology of belt conveyor in China has developed rapidly. The inclined angle of the belt conveyor that can safely transport materials to the designated destination is 10 ° - 18 °. If the inclined angle is exceeded, the materials will slide relatively on the belt, and in serious cases, all the materials will slide, so that the belt conveyor can not work normally. The deep trough belt conveyor can solve the above problems well, and can realize the transportation with large inclination angle. The structure is simple and the operation is reliable.
帶式輸送機運行時必須保證物料與膠帶不出現(xiàn)相對運動，保證物料與物料、物料與膠帶之間有足夠大的摩擦力。一般在設(shè)我們可以遵循下列原則：
When the belt conveyor is running, it must be ensured that there is no relative movement between the material and the belt, and that there is enough friction between the material and the material, and between the material and the belt. Generally, we can follow the following principles in design:
（1）減少中間水平托輥的長度，
(1) Reduce the length of the intermediate horizontal idler,
（2）增加托輥槽角，
(2) Increase idler groove angle,
（3）加長側(cè)托輥長度。
(3) Lengthen the length of side idler.
前兩點將增大物料與膠帶之間的摩擦力，后一點將增加托輥對物料及物料與物料之間的夾持長度。一般在設(shè)計托輥組時都采用深槽四節(jié)輥形式。
The first two points will increase the friction between the material and the tape, and the second point will increase the holding length of the idler to the material and between the material and the material. Generally, in the design of idler set, deep groove four section roller is used.
大傾角帶式輸送機物料在輸送帶上的橫截面積的大小與輸送能力大小有著直接的關(guān)系，深槽托輥組與普通槽形托輥組的橫截面積計算原理都相同，下面對兩托輥組進(jìn)行橫截面積分析，得到一般規(guī)律公式。
There is a direct relationship between the cross-sectional area of the material on the conveyor belt and the conveying capacity of the belt conveyor. The calculation principle of the cross-sectional area of the deep groove roller group and the ordinary groove roller group is the same. The cross-sectional area of the two roller groups is analyzed and the general rule formula is obtained.
水平輸送時，輸送帶上物料的橫截面面積S，可按下式計算：
When conveying horizontally, the maximum cross-sectional area s of the material on the conveyor belt can be calculated as follows:
S=S1+S2
S=S1+S2
式中：S1-輸送帶上物料的上部橫截面面積（m2）；S2-輸送帶上物料的下部橫截面面積（m2）。
Where: S1 - the upper cross-sectional area of the material on the conveyor belt (M2); S2 - the lower cross-sectional area of the material on the conveyor belt (M2).
三托輥輸送帶上物料的橫截面面積（見圖1），可按下列公式計算：
The cross-sectional area of the material on the three roller conveyor belt (see Figure 1) can be calculated according to the following formula:
式中：l3-承載托輥組中中間水平托輥的長度（m）；b-輸送帶裝載物料的有效寬度（m）；B≤2m，b=0.9B-0.05m；B≤2m，b=B-0.25m；λ-槽形托輥組側(cè)輥軸線與水平線間的夾角
Where: L3 - length of the intermediate horizontal idler in the carrier roller group (m); B - effective width of the material loaded on the conveyor belt (m); B ≤ 2m, B = 0.9b-0.05m; B ≤ 2m, B = b-0.25m; λ - angle between the side roller axis of the trough carrier roller group and the horizontal line
（簡稱槽角）（°）；θ-被輸送物料的動堆積角（°）。θ值與物料的特性、流動性、輸送帶速度和輸送機長度有關(guān)。通常動堆積角比靜堆積角小5～15°，有些物料可能小20°。如果沒有動堆積角的實測數(shù)據(jù)，可按物料的靜堆積角的50%～75%近似計算。
(abbreviated as slot angle) (° for short); θ - Dynamic stacking angle of transported material (° for short). The value of θ is related to the characteristics of materials, fluidity, belt speed and conveyor length. Generally, the dynamic stacking angle is 5-15 ° smaller than the static stacking angle, and some materials may be 20 ° smaller. If there is no measured data of dynamic stacking angle, it can be approximately calculated as 50% - 75% of the static stacking angle of materials.
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