WGK-B240TK/J 不銹鋼雙向拉繩開(kāi)關(guān)

簡(jiǎn)介：

用于物料輸送現(xiàn)場(chǎng)發(fā)生緊急事故時(shí)的停機(jī)開(kāi)關(guān)，本機(jī)由于安裝方便，開(kāi)關(guān)轉(zhuǎn)換方便可靠，在鋼鐵、電力、礦山及水泥等有膠帶輸送機(jī)的行業(yè)得到廣泛應(yīng)用。

拉繩開(kāi)關(guān)由拉桿、復(fù)位柄、凸輪、鎖槽及微動(dòng)開(kāi)關(guān)等組成。安裝于皮帶輸送機(jī)的兩側(cè)的機(jī)架上，用鋼絲繩沿著輸送機(jī)兩側(cè)把開(kāi)關(guān)連接起來(lái)。當(dāng)輸送帶設(shè)備發(fā)生緊急事故時(shí)，在現(xiàn)場(chǎng)沿線(xiàn)任意處拉動(dòng)鋼絲繩，鋼絲繩牽動(dòng)驅(qū)動(dòng)臂旋轉(zhuǎn)，通過(guò)傳動(dòng)軸帶動(dòng)扭力彈簧使精密凸輪發(fā)生位移，驅(qū)動(dòng)微動(dòng)開(kāi)關(guān)切斷控制線(xiàn)路，使得輸送機(jī)停止運(yùn)行。

安裝與接線(xiàn)：  

1、拉繩開(kāi)關(guān)成對(duì)安裝在膠帶機(jī)左右兩側(cè)，安裝支架與膠帶機(jī)中間架用螺栓，其位置應(yīng)低于膠帶及便于現(xiàn)場(chǎng)工作人員使用。兩臺(tái)拉繩開(kāi)關(guān)之間相距50m左右為宜。

2、拉繩推薦采用覆塑鋼絲繩，（或普通鋼線(xiàn)繩1XW19-4(5)-150,絲直徑4-5mm均可）。絲繩用繩卡（6KTH）固定，每隔3m左右安裝一個(gè)托環(huán)，以免鋼絲繩繞度過(guò)大，保證拉繩動(dòng)作可靠。在滿(mǎn)足開(kāi)關(guān)正常工作的前提下，盡可能拉緊繩索，減少鋼絲繩垂度。

3、對(duì)于爬坡段膠帶機(jī)，應(yīng)盡量縮短開(kāi)關(guān)間距，及拉繩長(zhǎng)度。

4、接線(xiàn)：拉繩開(kāi)關(guān)出廠(chǎng)時(shí)配有長(zhǎng)度1.2m四芯橡套電纜,芯線(xiàn)上配有1、2、3、4線(xiàn)號(hào)，其中1、2為常開(kāi)接點(diǎn)，3、4為常閉接點(diǎn)。

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