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帶式停止器

2014-10-27 09:55 作者:管理員17 來源:未知 瀏覽: 字號:

摘要:9.4帶式停止器 傾斜帶式物送機向上輸送物料時,如果電動機偶 然斷電停車,在物料重量作用下,工作分支會自動下 滑,造成事故。在傳動機構中裝設自動作用的制動 器、棘輪或滾住停止器能防止這一事故的發生,但最 常用的是帶式停止器。 帶式停止器(或稱逆止器)

9.4帶式停止器
    傾斜帶式物送機向上輸送物料時,如果電動機偶
然斷電停車,在物料重量作用下,工作分支會自動下
滑,造成事故。在傳動機構中裝設自動作用的制動
器、棘輪或滾住停止器能防止這一事故的發生,但最
常用的是帶式停止器。
    帶式停止器(或稱逆止器)是一根與輸送帶完全相
同的帶子,一端固定在機架上,另一端自由I于輸送機
驅動滾筒處非工作分支的內側,稱為止動帶。止動帶不
妨礙輸送機正常運轉,但一且出現輸送帶反行時.止動
帶就被輸送帶帶進滾筒與輸送帶之間,通過摩擦力作
用,使滾筒和輸送帶的逆轉停止(圖15.3-77),
    帶式停止器結構簡單,適用于輸送機傾角<=18o
向上運輸。缺點是制動時先倒轉一段.頭部滾簡直徑
愈大.側轉距離愈長,因此對大功率和大產量的輸送
機不宜采用此種逆止器。
    GN型帶式停止器規格見表15.3-57。
GN型帶式停止器GN型帶式停止器1帶式停止器

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