成都深槽型帶式輸送機概述

核心提示：成(cheng)都輸送設(she)備中(zhong)深槽(cao)型帶(dai)式輸送機是通過增加托輥組的槽(cao)深，使(shi)輸送帶(dai)

成(cheng)都深(shen)槽型(xing)帶(dai)式(shi)輸送(song)機概述(shu)

成都輸送設備中深槽(cao)型帶式輸送(song)(song)(song)機(ji)(ji)是通過(guo)增加托輥組(zu)(zu)的槽(cao)深，使輸送(song)(song)(song)帶擠壓物料，從而增大(da)(da)了物料和輸送(song)(song)(song)帶之(zhi)間(jian)的摩(mo)擦力，以及增大(da)(da)了物料之(zhi)間(jian)的內(nei)摩(mo)擦，以達(da)到提高輸送(song)(song)(song)傾角的目的。托輥組(zu)(zu)可以果用吊掛成固定方式。國內(nei)主要研制單位(wei)有(you)原沈陽起重(zhong)運輸機(ji)(ji)械廠(chang)、煤(mei)炭科學(xue)研究總院(yuan)上(shang)海(hai)分院(yuan)、東北(bei)大(da)(da)學(xue)，前蘇聯(lian)、美(mei)國、英國都有(you)研制。煤(mei)炭科學(xue)研究總院(yuan)上(shang)海(hai)分院(yuan)經過(guo)現場(chang)原煤(mei)輸送(song)(song)(song)試驗，原煤(mei)相對濕度5.37%~8.64%，塊煤所占百分比3.73%~100%，帶速(su)為2~3.15m/s，相(xiang)應輸送量為324~510/h，最大啟動加速度0.33m/s2，最(zui)大(da)制動減速(su)度(du)0.14m/s2，最大輸送傾(qing)角(jiao)上運達28°，下運達(da)25°。北京東方輸送機有限公司(si)研制(zhi)了U帶式(shi)輸送機。

深槽型帶式輸送機提(ti)高輸送傾角的原理(li)

帶(dai)(dai)式輸(shu)(shu)(shu)(shu)送(song)(song)機輸(shu)(shu)(shu)(shu)送(song)(song)物(wu)(wu)(wu)料時必須保證(zheng)物(wu)(wu)(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)(dai)之間不產生相對運動(dong)。當輸(shu)(shu)(shu)(shu)送(song)(song)線(xian)路有傾角時，物(wu)(wu)(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)(dai)之間的靜摩(mo)擦力保證(zheng)了物(wu)(wu)(wu)料相對于輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)(dai)處于靜止(zhi)狀態。由(you)于物(wu)(wu)(wu)料與輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)(dai)間的摩(mo)擦角取決于物(wu)(wu)(wu)料和(he)輸(shu)(shu)(shu)(shu)送(song)(song)帶(dai)(dai)間的摩(mo)擦因數，因而通(tong)用(yong)帶(dai)(dai)式輸(shu)(shu)(shu)(shu)送(song)(song)機輸(shu)(shu)(shu)(shu)送(song)(song)物(wu)(wu)(wu)料的最(zui)大傾角受到了限制。穩定(ding)運行(xing)的通(tong)用(yong)帶(dai)(dai)式輸(shu)(shu)(shu)(shu)送(song)(song)機的最(zui)大傾角應該滿足p1 cosmas≥也就是mx≤ arctan=pr。

式中g物料與(yu)輸送帶間的(de)摩(mo)擦角(jiao)；

物料(liao)和(he)輸送帶之間的摩擦因數

輸送機的(de)最大傾角

實(shi)際上，由于輸(shu)送機(ji)在啟動(dong)和制動(dong)時慣性力的作用，輸(shu)送機(ji)的最大(da)傾角要小于

要(yao)增大輸(shu)送(song)物料(liao)(liao)的傾角，就要(yao)增加物料(liao)(liao)和輸(shu)送(song)帶間的摩擦力(li)、物料(liao)(liao)之間的內摩擦力(li)，這(zhe)

就需要(yao)對(dui)物料施(shi)加壓力，當對(dui)質量為m的(de)物料(liao)施加壓(ya)力F時，有p1(cos6mx+F)≤ sinomaF=F/(mg)。