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DME3000-111
DME3000-111 價格:800  元(人民幣) 產(chǎn)地:美國
最少起訂量:1 發(fā)貨地:福建廈門
上架時間:2018-09-11 15:26:18 瀏覽量:151
廈門光沃自動化設(shè)備有限公司  
經(jīng)營模式:經(jīng)銷商 公司類型:其他有限責(zé)任公司
所屬行業(yè):PLC控制系統(tǒng) 主要客戶:全國市場
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詳細介紹

DME3000-111

DME3000-111

DME3000-111

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變頻器的工作原理:1336FORCE變頻器由主電路和控制電路構(gòu)成,主電路包括整流電路和逆變電路,主電路把工頻電流(50Hz或60Hz)變換成工作所需頻率的交流電流,以實現(xiàn)電機的變速運行。變頻器輸入輸出波形是由其工作原理決定的,變頻器的工作原理與電機的選擇、周圍設(shè)備的配置及其電流、電壓的測量等有緊密的關(guān)系。

圖1為加裝變頻器后的工作原理圖,經(jīng)過改造后,堆垛機的提升速度控制過程從原來的一個變成三個,即低頻啟動階段、正常提升階段、低頻停止階段。從而避免了速度突變,保障了設(shè)備和成品的安全。加裝變頻器改造后堆垛機具有以下優(yōu)點:避免了電壓和頻率的突變,減少了工頻電壓對電機的沖擊;提高了堆垛機提升時的平穩(wěn)性;增加了系統(tǒng)的安全性。
2.3 堆垛機的超尺寸檢測系統(tǒng)不完善造成的成品翻倒現(xiàn)象分析
  為了保障在卷煙成品在出入庫過程中的安全,堆垛機原來設(shè)計有超尺寸安全檢測。堆垛機的超尺寸檢測系統(tǒng)由10組對射式傳感器組成。10組傳感器分布于卷煙成品的兩側(cè)的外形支架上,其中在每側(cè)面相應(yīng)的位置安裝有5組,如圖2所示。圖2是左側(cè)面上傳感器的分布情況。圖中,S4-S4′用于檢測成品煙或空托盤是否超高;S1-S1′,S2-S2′,S3-S3′三對檢測器用于檢測垂直側(cè)面是否超出預(yù)定尺寸。由于垂直面檢測是在卷煙成品的裝卸過程中完成,超尺寸檢測準(zhǔn)確,沒有盲區(qū)。S5-S5′檢測器用于檢測斜面超尺寸,可見,圖中所示區(qū)域1,2,3,4即為檢測“盲區(qū)”,
在這些“盲區(qū)”內(nèi),超尺寸的卷煙成品不能被堆垛機的超尺寸檢測網(wǎng)檢測到,如圖2所示。這些沒有被檢測到的超尺寸卷煙成品,如果被擺放到貨架上,極易被來回穿梭行走在巷道內(nèi)的堆垛機在存取貨物時發(fā)生碰撞,從高空掉落。

2.4 堆垛機超尺寸檢測系統(tǒng)的完善改造
  如上所述,堆垛機超尺寸檢測系統(tǒng)的缺陷主要在于存在著嚴重的檢測“盲區(qū)”,部分嚴重超尺寸的卷煙成品在未經(jīng)處理的情況下就被擺放到貨架上,后又被來回存取貨物的堆垛機撞倒。為了消除檢測“盲區(qū)”,我們制訂出了以“平面式”檢測方式替代原先的“點對點對射式”檢測方式的解決方案。
  所謂“平面式”檢測方式,是相對于傳統(tǒng)的“點對點對射式”檢測方式而言的。即所使用的檢測器能對某一平面區(qū)域進行全面檢測而不是僅檢測這一區(qū)域內(nèi)的一條線或幾條線。經(jīng)過查閱相關(guān)技術(shù)資料,我們選定了一種理想的“平面式”檢測器,即模數(shù)光柵檢測器(Modular LightGrid),MLG光柵檢測器為施耐克公司的產(chǎn)品。其工作原理與點對點對射式傳感器的工作原理基本一致,主體設(shè)計是由一塊發(fā)射板和一塊接收板組成。發(fā)射板向接收板發(fā)射紅外線光束,從而實現(xiàn)對兩塊板所構(gòu)成的矩形平面內(nèi)的超尺寸物體檢測。紅外線光束間的間離可以自由設(shè)定,間距的大小決定模數(shù)光柵檢測器的檢測精度。

  通過實地測量得知,卷煙成品外加承載托盤高度為1700mm,一件煙的最小外形尺寸為240mm,所以,調(diào)整光柵間距為50mm,選擇最大檢測高度為1750mm的MLG5-1750型模數(shù)光柵檢測器作為堆垛機的超尺寸檢測器。

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REXROTH H160CA-40X18-ME5-N-PU-PU-4-G-200-S-A-11-RF2 NSP

REXROTH VT 2000 CIRCUIT CARD

NEW REXROTH R900920273 DIRECTION CONTROL VALVE

REXROTH IKG0041 CABLE 35M

REXROTH VT5006-17 USPP VT500617

REXROTH LG, R900458131 AND LFA, R900938182 VALVE NEW

REXROTH PSK60-1465-300-00-MF01-11 USPP PSK60146530000MF

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