氮爆式(shi)液壓沖擊(ji)器是一(yi)種廣泛應用(yong)于礦山巖石 的破碎、混(hun)泥(ni)土構建(jian)的拆毀等工(gong)程建(jian)設中的新式(shi)液。

壓(ya)工(gong)程設備(bei),首(shou)要結構(gou)包含(han)液(ye)(ye)壓(ya)沖擊活(huo)塞、換(huan)向閥和。氮(dan)氣室等(deng)基(ji)本(ben)部件(jian)。本(ben)文在壓(ya)力(li)反響(xiang)式原理的(de)基(ji)礎上(shang),建(jian)立了(le)氮(dan)爆式液(ye)(ye)壓(ya)沖擊器依據機電(dian)一(yi)體化(hua)的(de)操控(kong)(kong)方案,并對液(ye)(ye)壓(ya)操控(kong)(kong)體系(xi)、計(ji)算機操控(kong)(kong)體系(xi)的(de)硬件(jian)和軟(ruan)件(jian)模塊進行了(le)規(gui)劃,以進步液(ye)(ye)壓(ya)破碎錘的(de)自動化(hua)智能化(hua)水平,完結液(ye)(ye)壓(ya)沖擊技術上(shang)的(de)一(yi)個打(da)破。

液壓操控體系的基本原理(li)(li)：依(yi)據(ju)(ju)規劃理(li)(li)論(lun)和操控辦法的不同(tong),液壓沖(chong)(chong)擊(ji)(ji)器液壓操控系可分(fen)為行(xing)(xing)程反(fan)響和壓力反(fan)響2種(zhong)。行(xing)(xing)程反(fan)響原理(li)(li)大多(duo)依(yi)據(ju)(ju)設(she)置(zhi)多(duo)個信號孔來完結(jie)(jie)沖(chong)(chong)擊(ji)(ji)頻率(lv)和沖(chong)(chong)擊(ji)(ji)能的有級調度,可是這類錘結(jie)(jie)構雜(za)亂,加(jia)工(gong)工(gong)藝(yi)、精(jing)度要(yao)求(qiu)很高,而且沖(chong)(chong)擊(ji)(ji)能與(yu)沖(chong)(chong)擊(ji)(ji)頻率(lv)同(tong)步(bu)增減,因而其沖(chong)(chong)擊(ji)(ji)頻率(lv)無法規劃得很低。

壓力反響原理的(de)(de)基本思想:通過操控沖(chong)(chong)(chong)(chong)(chong)擊活(huo)(huo)塞(sai)回程(cheng)(cheng)加速結(jie)束時(shi)氮(dan)氣(qi)室(shi)的(de)(de)壓力,來調度沖(chong)(chong)(chong)(chong)(chong)擊活(huo)(huo)塞(sai)回程(cheng)(cheng)位(wei)移(yi),以此(ci)(ci)達到改變沖(chong)(chong)(chong)(chong)(chong)擊器(qi)的(de)(de)沖(chong)(chong)(chong)(chong)(chong)擊頻率(lv)(lv)和單次(ci)沖(chong)(chong)(chong)(chong)(chong)擊能的(de)(de)意(yi)圖。規劃方案頂用(yong)壓力變送器(qi)檢測沖(chong)(chong)(chong)(chong)(chong)擊活(huo)(huo)塞(sai)沖(chong)(chong)(chong)(chong)(chong)擊鋼釬(han)后(hou)反彈(dan)(dan)時(shi)氮(dan)氣(qi)室(shi)的(de)(de)壓力信號(hao)(hao),此(ci)(ci)信號(hao)(hao)首要由作(zuo)業目標(biao)的(de)(de)物理性質決定,當(dang)反彈(dan)(dan)信號(hao)(hao)較(jiao)大(da)時(shi),計算機調度活(huo)(huo)塞(sai)回程(cheng)(cheng)加速結(jie)束時(shi)氮(dan)氣(qi)室(shi)的(de)(de)換(huan)(huan)向壓力為較(jiao)大(da)值(zhi),活(huo)(huo)塞(sai)回程(cheng)(cheng)位(wei)移(yi)增(zeng)(zeng)大(da),相應沖(chong)(chong)(chong)(chong)(chong)擊頻率(lv)(lv)下降,沖(chong)(chong)(chong)(chong)(chong)擊能增(zeng)(zeng)大(da);反之當(dang)信號(hao)(hao)小時(shi),調度換(huan)(huan)向壓力為較(jiao)小值(zhi),沖(chong)(chong)(chong)(chong)(chong)擊頻率(lv)(lv)增(zeng)(zeng)大(da),沖(chong)(chong)(chong)(chong)(chong)擊能減小。

因為第1次(ci)(ci)沖擊(ji)(ji)的(de)(de)(de)換(huan)(huan)向(xiang)壓力能(neng)夠(gou)預先設定(ding),而第1次(ci)(ci)沖擊(ji)(ji)后的(de)(de)(de)每一次(ci)(ci)沖擊(ji)(ji)都有反彈(dan)信號(hao),計算機能(neng)夠(gou)對每一次(ci)(ci)沖擊(ji)(ji)進行調(diao)度(du),完(wan)結(jie)輸出能(neng)量(liang)、頻率的(de)(de)(de)獨立(li)無級(ji)調(diao)度(du)和(he)(he)最優匹(pi)配。此(ci)外(wai),由(you)高速(su)開關(guan)閥和(he)(he)邏輯(ji)插(cha)裝(zhuang)錐閥組成的(de)(de)(de)換(huan)(huan)向(xiang)體(ti)系,完(wan)全摒棄(qi)了(le)傳(chuan)統(tong)液壓沖擊(ji)(ji)器的(de)(de)(de)換(huan)(huan)向(xiang)閥和(he)(he)信號(hao)孔,消除了(le)換(huan)(huan)向(xiang)閥加工難的(de)(de)(de)情況,換(huan)(huan)向(xiang)體(ti)系與沖擊(ji)(ji)器別離(li)開來,中心用(yong)油(you)管銜接,制造精度(du)簡略得到保證,而且完(wan)全能(neng)夠(gou)滿意液壓沖擊(ji)(ji)器的(de)(de)(de)作(zuo)業參數要求,因而更具經濟性和(he)(he)壽命(ming)長的(de)(de)(de)特色。