產(chǎn)品詳情
德國(guó)原裝進(jìn)口博世力士樂伺服電磁閥：0811404803 4WRPEH 10 C4 B100L-2X/G24K0/A1M
力士樂比例閥的特點(diǎn)如下：
1)可實(shí)現(xiàn)壓力、速度的無(wú)極調(diào)節(jié)，避免了常通的開關(guān)式氣閥換向時(shí)的沖擊現(xiàn)象。
2)能實(shí)現(xiàn)遠(yuǎn)程控制和程序控制。
3)與斷續(xù)控制相比，系統(tǒng)簡(jiǎn)化，元件大大減少。
4)與液壓比例閥相比，體積小、重量輕、結(jié)構(gòu)簡(jiǎn)單、成本較低，但響應(yīng)速度比液壓系統(tǒng)慢得多，對(duì)負(fù)載變化也比較敏感。
5)使用功率小、發(fā)熱少、噪聲低。
6)不會(huì)發(fā)生火災(zāi)，不污染環(huán)境。受溫度變化的影響小。
力士樂比例閥一般采用兩端承壓面積不等的差徑活塞結(jié)構(gòu)。比例閥不工作時(shí)，差徑活塞2在彈簧3的作用下處于上極限位置，此時(shí)閥門1保持開啟，因而在輸入控制壓力P1與輸出壓力P2從零同步增長(zhǎng)的初始階段，總是P1等于P2。但是壓力P1的作用面積A1為π（D2-d2）/4，壓力P2的作用面積A2為πD2/4，因而A2大于A1，故活塞上方液壓作用力大于活塞下方液壓作用力。在P1、P2同步增長(zhǎng)過程中，當(dāng)活塞上、下兩端液壓作用之差超過彈簧3的預(yù)緊力時(shí)，活塞便開始下移。當(dāng)P1和P2增長(zhǎng)到一定值PS時(shí)活塞2內(nèi)腔中的閥座與閥門1接觸，進(jìn)油腔與出油腔即為隔絕，使比例閥進(jìn)入平衡狀態(tài)。若進(jìn)一步提高P1則活塞將回升，閥門再度開啟，油液繼續(xù)流入出油腔而使P2不斷升高，但由于A2大于A1，P2尚未增長(zhǎng)到新的P1值，活塞又下降到平衡位置。在任一平衡狀態(tài)下，差徑活塞的力的平衡方程為：P2路A2=P1路A1+F。
上海今薩機(jī)電設(shè)備有限公司主營(yíng)：
德國(guó)品牌：
REXROTH（力士樂）、P+F(倍加福)
PHOENIX(菲尼克斯 ) 、SIEMENS(西門子)
HAWE（哈威） HYDAC（賀德克）
EUPRESS FONROOG(佛 郎）
美國(guó)品牌：
PARKER（派克）、DENISON（丹尼遜）、
VICKERS（威格士）、 MOOG（穆格）、
SUN ( 太陽(yáng) ）、SAUER-DANFOSS (薩奧-丹佛斯）
意大利 ATOS（阿托斯）
日本 YUKEN（油 研）
備有大量現(xiàn)貨，保證原裝正品，假一罰十，歡迎大家來(lái)咨詢！?。。?/span>
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