拉繩開關PLR20-2D-G拉繩開關PLR20-2D-G拉繩開關PLR20-2D-G ![拉繩開關PLR20-2D-G](https://img73.ybzhan.cn/bb33f2c9b6dc3b8561fe1829ac1dd3bcb7c525d0cf037f9a7e7babeaffb2387cfb2d96c6f43835f0.png)
輸送機PLR20-2D-G拉繩開關安裝說明: 1、PLR20-2D-G拉繩開關成對安裝在皮帶機左右兩側,在皮帶機旁角鐵架鉆Ф12mm孔,用M10×40mm螺栓緊固拉繩開關。 2、拉繩開關每隔40米安裝1臺,其位置應低于皮帶及便于現場工作人員使用。 3、拉繩系在一關臂上,拉繩推薦使用覆塑鋼絲繩,直徑3~5mm均可。鋼絲繩用繩夾固定,每隔3米左右安裝一個托環,以免鋼絲繩垂撓度過大,保證拉繩動作可靠。在滿足開關正常工作的前提下,盡可能拉緊繩索,減少鋼絲繩垂撓度。 4、對于爬坡段皮帶機,應盡量縮短拉繩開關間距,及拉繩長度。 5、接線:拉繩開關出廠時配有長度1.2米四芯橡套電纜,芯線上配有1、2、3、4線號,其中1、2為常開接點是報警信號,3、4為常閉接點是停機信號 PLR20-2D-G拉繩開關介紹: 隨著煤礦生產規模的擴大和生產數字化程度的提高,對煤礦安全生產的要求也在不斷提高,作為煤礦生產運輸設備的膠帶輸送機,其安全可靠的運行顯得非常重要。本文以礦用膠帶輸送機常見故障為研究對象,針對目前礦用膠帶輸送機保護種類不全、可靠性低等問題,結合單片機和傳感器技術,對膠帶輸送機的保護系統進行了設計,研究膠帶輸送機打滑、超溫、跑偏、堆煤、煙霧等常見故障的發生機理,設計可行的傳感器檢測方法,通過單片機對膠帶輸送機故障進行報警和控制膠帶輸送機停機及相關保護裝置動作。 ![](https://img67.ybzhan.cn/gxhpic_862725b24a/9df95e9989903b9b035fbbc1e96b283e4e11cb591afcadca3dafe7b442637a07fadf154446822887.png)
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