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力士樂柱塞泵比例控制閥VT-DFPE-C-22/G24K0/2A0V/V
產品型號: VT-DFPE-C-22/G24K0/2A0V/V 品 牌: 力士樂 -
1-4 臺
¥17000.00 -
≧5 臺
¥16800.00
所 在 地: 上海浦東新區 更新日期: 2025-08-22 詳細信息| 詢價留言品牌:力士樂 型號:VT-DFPE-C-22/G24K0/2A0V/V 加工定制:否 材質:鑄鋼 連接形式:法蘭 類型:比例閥 適用介質:油品 壓力環境:常壓 工作溫度:常溫 流動方向:換向 介質溫度:40 ℃ 工作壓差:0-350bar 適用范圍:液壓系統 介質溫度:40 ℃ 工作壓差:0-350bar 力士樂柱塞泵比例控制閥VT-DFPE-C-22/G24K0/2A0V/V,德國REXROTH三位三通比例方向閥,購買進口液壓、氣動、自動化控制工業配件,認準“上海韋米機電設備有限公司”,7年老店,保證產品原廠原裝,價格優惠,售后無憂,歡迎新老客戶咨詢采購!
液壓比例控制系統
以比例控制元件完成動力與運動方向控制,分為比例壓力閥、比例流量閥、比例方向閥及比例方向流量閥,可為模擬量輸入或數字量輸入,視是否帶反饋分為開環控制與閉環控制,一般獲得頻率不是很高(10HZ)以內,高頻響閥可實現較高頻率。
若精度要求不高可考慮使用電液比例控制系統,一般電液比例控制系統可達至以下精度
位置精度- 3 mm
速度精度帶壓力補償器- 3%
加減速斜坡時間-0.5秒
壓力帶位移傳感器的產品-比例壓力閥設定的0.3% (如壓力設定為200bar,精度可達0.6bar)
一般的多驅動器液壓系統皆要求流量及壓力控制,提供比例壓力及流量控制系統
開環式比例壓力及流量控制可用于定量泵及變量泵系統。
速度和流量比例控制的分別是:
流量控制只控制供油量,并不控制驅動元件的運動方向;
若系統負載及變速要求高,則要使用速度控制系統。
速度比例控制多用于自動化控制、注塑機、壓力機等
使用閉環的主要原因:
保持設定值不受外來干擾所影響
→在不同的工作壓力下保持穩定的速度
→在不同的輸出力下保證相同位置
→在帶偏載的情況下作同步移動
提高精度要求
→位置誤差低于1 mm
→壓力誤差低于1 ba
→需要控制加減速度
高動態要求的系統
→模擬應用
→測驗應用
液壓伺服控制系統
以伺服控制元件完成動力與運動方向控制,綜合壓力、流量、方向控制為一體,利用偏差控制進行糾偏,以滿足精度控制需要,必須為閉環控制,可實現較高頻率( 100HZ以上) ,有滑閥式、噴嘴擋板式、射流管式等,常采用機械伺服、電液伺服、氣液伺服。
液壓伺服系統分類:
(1)按輸入的信號變化規律分類:定值控制系統、程序控制系統和伺服系統三類。當系統輸入信號為定值時,稱為定值控制系統,其基本任務是提高系統的抗干擾能力。當系統的輸入信號按預先給定的規律變化時,稱為程序控制系統。伺服系統也稱為隨動系統,其輸入信號是時間的未知函數,輸出量能夠準確、迅速地復現輸入量的變化規律。
(2)按輸入信號的不同分類:機液伺服系統、電液伺服系統、氣液伺服系統等。
(3)按輸出的物理量分類:位置伺服系統、速度伺服系統、力(或壓力)伺服系統等。
(4)按控制元件分類:閥控系統和泵控系統。在機械設備中,閥控系統應用較多。
液壓伺服系統的特點如下:
(1)反饋。把輸出量的一部分或全部按一定方式回送到輸入端,并和輸入信號進行比較,這就是反饋。在上例中,反饋(測速裝置輸出)電壓和給定(輸入信號)電壓是異號的,即反饋信號不斷地抵消輸入信號,這是負反饋。自動控制系統大多數是負反饋。
(2)偏差。要使液壓缸輸出一定的力和速度,伺服閥必須有一定的開口量,因此輸入和輸出之間必須有偏差信號。液壓缸運動的結果又力圖消除這個誤差。但在伺服系統工作的任何時刻都不能完全消除這一-偏差,伺服系統正是依靠這一-偏差信號進行工作的。
(3)放大。執行元件(液壓缸)輸出的力和功率遠遠大于輸入信號的力和功率,其輸出的能量是液壓能源供給的。
(4)跟蹤。液壓缸的輸出量完全跟蹤輸入信號的變化。
電液比例閥是比例控制系統中的主要功率放大元件,按輸入電信號指令連續地成比例地控制液壓系統的壓辦流量等參數。與伺服控制系統中的伺服閥相比,在某些方面還有一定的性能差距(主要性能比較如表1所示),但它顯著的優點是抗污染能力強,大大地減少了由污染而造成的工作故障,提高了液壓系統的工作穩定性和可靠性。另一方面比例閥的成本比伺服閥低,結構也簡單,已在許多場合獲得廣泛應用。
力士樂柱塞泵比例控制閥VT-DFPE-C-22/G24K0/2A0V/V
力士樂REXROTH電動液壓控制系統
零配件
力士樂REXROTH帶電氣位置反饋直動式三位三通比例方向閥作為SYDFE控制系統的先導閥
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力士樂REXROTH過濾單元
力士樂REXROTH帶內聯濾波器的濾波器單元
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R901466306 ABUFG-2X-190Z/4,00CA453/FLE270/3XLHOY
力士樂REXROTH根據DIN 24550過濾器單元內置濾波器
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R901381835 KOLP10H-2X/R-45FB5/100-10-E/M
R901311903 KOLP10H-2X/R-45FB5L160-10-E/M
R901443041 KOLP10I-2X/R-20FB5/100-10-E/M
R901450577 KOLP10I-2X/R-20FB5/100-10-E/M-042
R901353086 KOLP10J-2X/R-30/M
R901366183 KOLP10L-2X/R-45F100-10-E/M
R901304177 KOLP10N-2X/R-20/M
R901304171 KOLP10N-2X/R-20/V
R901304172 KOLP10N-2X/R-20F100-10-E/M
R901304173 KOLP10N-2X/R-20F100-10-O/M
R901304179 KOLP10N-2X/R-20F160-03-E/M
R901304192 KOLP10N-2X/R-20F160-10-E/M
R901304183 KOLP10N-2X/R-20F160-10-O/M
R901304193 KOLP10N-2X/R-20FB5/100-10-E/M
R901304191 KOLP10N-2X/R-30/M
R901304196 KOLP10N-2X/R-30F100-10-E/M
R901304194 KOLP10N-2X/R-30F100-10-O/M
R901304207 KOLP10N-2X/R-30F160-10-E/M
R901418480 KOLP10N-2X/R-30F160-10-E/M-032
R901304201 KOLP10N-2X/R-30F160-10-O/M
R901404260 KOLP10N-2X/R-30FB5/160-10-E/M
R901418486 KOLP10N-2X/R-30FB5/160-10-E/M-032
R901406205 KOLP10N-2X/R-30FT5-160-03-O/M
R901304210 KOLP10N-2X/R-45/M
R901304214 KOLP10N-2X/R-45F100-10-E/M
R901304213 KOLP10N-2X/R-45F100-10-O/M
R901304217 KOLP10N-2X/R-45F100-3-E/M
R901304218 KOLP10N-2X/R-45F160-10-E/M
R901418509 KOLP10N-2X/R-45F160-10-E/M-032
R901304220 KOLP10N-2X/R-45F160-10-O/M
R901304247 KOLP10N-2X/R-45FB5/100-10-E/M
R901304248 KOLP10N-2X/R-45FB5/160-03-E/M
R901307098 KOLP10N-2X/R-45FB5/160-10-E/M
R901418515 KOLP10N-2X/R-45FB5/160-10-E/M-032
R901451125 KOLP10N-2X/R-45FL160-3-E/M
R901304249 KOLP10N-2X/R-45FL250-10-E/M
R901304258 KOLP10N-2X/R-9/M
R901304260 KOLP10N-2X/R-9F100-10-E/M
R901304261 KOLP10N-2X/R-9F100-10-O/M
R901304265 KOLP10N-2X/R-9F160-10-E/M
R901304266 KOLP10N-2X/R-9F160-10-O/M
R901304271 KOLP10N-2X/R-9FB5-160-10-O/M
R901380264 KOLP3B-2X/R-19/M
R901313654 KOLP3C-2X/R-6F100-10-E/M
R901361745 KOLP3D-2X/R-13F100-10-E/M-014
R901326599 KOLP3D-2X/R-19/M
R901337433 KOLP3F-2X/R-13F100-10-E/M
R901313543 KOLP3G-2X/R-13F100-10-E/M-014
R901441739 KOLP3H-2X/R-13FB5/100-10-E/M
R901350401 KOLP3L-2X/R-6/M
R901435573 KOLP3M-2X/R-13FT6/100-10-O/M
R901304280 KOLP3N-2X/R-13/M
R901304281 KOLP3N-2X/R-13/M-014
R901304282 KOLP3N-2X/R-13F100-10-E/M
R901309098 KOLP3N-2X/R-13F100-10-E/M-014
R901304284 KOLP3N-2X/R-13F100-10-O/M
R901304289 KOLP3N-2X/R-13FB5/100-10-O/M
R901368356 KOLP3N-2X/R-13FT6/100-10-O/M
R901304290 KOLP3N-2X/R-19/M
R901304291 KOLP3N-2X/R-19F100-10-E/M
R901304293 KOLP3N-2X/R-19F100-10-O/M
R901304297 KOLP3N-2X/R-19FB5/100-10-E/M
R901304295 KOLP3N-2X/R-30/M
R901304301 KOLP3N-2X/R-30F100-10-E/M
R901304304 KOLP3N-2X/R-30F100-10-O/M
R901304310 KOLP3N-2X/R-6/M
R901304306 KOLP3N-2X/R-6F100-10-E/M
R901304311 KOLP3N-2X/R-6F100-10-O/M
R901383218 KOLP5B-2X/R-20F100-10-E/M
R901412984 KOLP5B-2X/R-9/M-014
R901458450 KOLP5C-2X/R-20FB5/100-10-E/M
R901414268 KOLP5F-2X/R-20/M
R901314493 KOLP5F-2X/R-20F100-10-E/M-008
R901334038 KOLP5F-2X/R-9/M
R901423018 KOLP5G-2X/R-20/M
R901396498 KOLP5G-2X/R-20F100-10-E/M
R901438881 KOLP5H-2X/R-9F100-10-O/M
R901439869 KOLP5H-2X/R-9F100-10-O/M-038
R901334266 KOLP5J-2X/R-20/M
R901436708 KOLP5M-2X/R-9F100-10-O/M
R901304315 KOLP5N-2X/R-20/M
R901304317 KOLP5N-2X/R-20B5/M
R901304320 KOLP5N-2X/R-20F100-10-E/M
R901418157 KOLP5N-2X/R-20F100-10-E/M-032
R901304325 KOLP5N-2X/R-20F100-10-O/M
R901404252 KOLP5N-2X/R-20FB5/100-10-E/M
R901418430 KOLP5N-2X/R-20FB5/100-10-E/M-032
R901304334 KOLP5N-2X/R-20FL160-10-E/M
R901329540 KOLP5N-2X/R-20FL160-10-E/M-014
R901304340 KOLP5N-2X/R-20T5/M
R901304328 KOLP5N-2X/R-30/M
R901304342 KOLP5N-2X/R-30F100-10-E/M
R901418458 KOLP5N-2X/R-30F100-10-E/M-032
R901304529 KOLP5N-2X/R-30F100-10-O/M
R901395444 KOLP5N-2X/R-30FB5100-10-E/M
R901418463 KOLP5N-2X/R-30FB5100-10-E/M-032
R901304700 KOLP5N-2X/R-30FT5/100-10-E/M
R901304540 KOLP5N-2X/R-45/M
R901304536 KOLP5N-2X/R-45F100-10-E/M
R901394406 KOLP5N-2X/R-45F100-10-E/M-004
R901304530 KOLP5N-2X/R-45F100-10-O/M
R901304532 KOLP5N-2X/R-9/M
R901304533 KOLP5N-2X/R-9F100-10-E/M
R901304541 KOLP5N-2X/R-9F100-10-O/M
R901304546 KOLP5N-2X/R-9F100-3-E/M
R901304550 KOLP5N-2X/R-9FB5100-10-O/M
R901304552 KOLP5N-2X/R-9FL100-10-E/M
R901336204 KOLP5N-2X/R-9L/M
R901371423 KOLP5N-2X/R-9T5/M
R901416672 KOLP8B-2X/R-19FB5/160-3-E/M
R901306322 KOLP8B-2X/R-30FB5/160-10-E/M
R901366547 KOLP8C-2X/R-30F100-10-E/M
R901446335 KOLP8D-2X/R-19F160-10-E/M
R901316749 KOLP8E-2X/R-30FB5/160-10-E/M
R901415512 KOLP8F-2X/R-19/M
R901307572 KOLP8F-2X/R-19F100-10-E/M
R901304559 KOLP8N-2X/R-13/M
R901426722 KOLP8N-2X/R-13F100-03-O/M
R901304565 KOLP8N-2X/R-13F100-10-E/M
R901304569 KOLP8N-2X/R-13F100-10-O/M
R901304553 KOLP8N-2X/R-13F160-10-E/M
R901304572 KOLP8N-2X/R-13F160-10-O/M
R901390120 KOLP8N-2X/R-13FB5/160-10-E/M
R901304568 KOLP8N-2X/R-13FL100-10-E/M
R901304575 KOLP8N-2X/R-19/M
R901304576 KOLP8N-2X/R-19F100-10-E/M
R901304582 KOLP8N-2X/R-19F100-10-O/M
R901304583 KOLP8N-2X/R-19F160-10-E/M
R901304584 KOLP8N-2X/R-19F160-10-O/M
R901304589 KOLP8N-2X/R-19F160-3-E/M
R901406123 KOLP8N-2X/R-19FB5/100-10-E/M
R901304592 KOLP8N-2X/R-19FL160-10-E/M
R901418868 KOLP8N-2X/R-19FT5-100-3-E/M
R901304595 KOLP8N-2X/R-30/M
R901304597 KOLP8N-2X/R-30F100-10-E/M
R901304602 KOLP8N-2X/R-30F100-10-O/M
R901304607 KOLP8N-2X/R-30F160-10-E/M
R901418466 KOLP8N-2X/R-30F160-10-E/M-032
R901304609 KOLP8N-2X/R-30F160-10-O/M
R901304613 KOLP8N-2X/R-30FB5/100-10-E/M
R901304614 KOLP8N-2X/R-30FB5/160-10-E/M
R901418474 KOLP8N-2X/R-30FB5/160-10-E/M-032
R901304617 KOLP8N-2X/R-30FB5L/160-3-O/M
R901304622 KOLP8N-2X/R-6/M
R901304628 KOLP8N-2X/R-6F100-10-E/M
R901304629 KOLP8N-2X/R-6F100-10-O/M
R901304630 KOLP8N-2X/R-6F160-10-E/M
R901304638 KOLP8N-2X/R-6F160-10-O/M
力士樂REXROTH壓力指示裝置
力士樂REXROTH充液壓力表
R987306652 ABZMM160-400BAR/MPA-U/V-G
R901123463 ABZMM40-10BAR/MPA-R/V-G
R901123227 ABZMM40-16BAR/MPA-R/V-G
R901123465 ABZMM40-25BAR/MPA-R/V-G
R901123468 ABZMM40-40BAR/MPA-R/V-G
R901101535 ABZMM40-60BAR/MPA-R/V-G
R901101536 ABZMM40-100BAR/MPA-R/V-G
R901101537 ABZMM40-160BAR/MPA-R/V-G
R901096694 ABZMM40-250BAR/MPA-R/V-G
R901101538 ABZMM40-400BAR/MPA-R/V-G
R900029132 ABZMM63-10BAR/MPA-R/B-G
R901108774 ABZMM63-10BAR/MPA-U/V-G
R900027254 ABZMM63-10BAR/PSI-R/B-G
R900067155 ABZMM63-10BAR/PSI-U/V-G
R900072025 ABZMM63-16BAR/MPA-R/B-G
R901347075 ABZMM63-16BAR/MPA-R/B-T
R901108567 ABZMM63-16BAR/MPA-U/V-G
R900027255 ABZMM63-16BAR/PSI-R/B-G
R900067158 ABZMM63-16BAR/PSI-U/V-G
R900033955 ABZMM63-25BAR/MPA-R/B-G
R900219546 ABZMM63-25BAR/MPA-U/V-G
R900027256 ABZMM63-25BAR/PSI-R/B-G
R900027960 ABZMM63-25BAR/PSI-U/V-G
R900072026 ABZMM63-40BAR/MPA-R/B-G
R901108775 ABZMM63-40BAR/MPA-U/V-G
R900027257 ABZMM63-40BAR/PSI-R/B-G
R900027961 ABZMM63-40BAR/PSI-U/V-G
R900072024 ABZMM63-60BAR/MPA-R/B-G
R900722020 ABZMM63-60BAR/MPA-R/B-T
R901210474 ABZMM63-60BAR/MPA-R/B030G
R901286720 ABZMM63-60BAR/MPA-R/B035G
R900222365 ABZMM63-60BAR/MPA-U/V-G
R900027258 ABZMM63-60BAR/PSI-R/B-G
R901335810 ABZMM63-60BAR/PSI-R/B035G
R901315429 ABZMM63-60BAR/PSI-R/V-G
R900027962 ABZMM63-60BAR/PSI-U/V-G
R900022458 ABZMM63-100BAR/MPA-R/B-G
R900051035 ABZMM63-100BAR/MPA-U/V-G
R901233159 ABZMM63-100BAR/MPA-U/V065G
R900027259 ABZMM63-100BAR/PSI-R/B-G
R900027963 ABZMM63-100BAR/PSI-U/V-G
R900022457 ABZMM63-160BAR/MPA-R/B-G
R900741239 ABZMM63-160BAR/MPA-R/B-T
R901166782 ABZMM63-160BAR/MPA-R/B050G
R901043344 ABZMM63-160BAR/MPA-R/B060G
R901231471 ABZMM63-160BAR/MPA-R/B070G
R901157266 ABZMM63-160BAR/MPA-R/B080G
R901284237 ABZMM63-160BAR/MPA-R/B090G
R900032523 ABZMM63-160BAR/MPA-R/B100G
R901174484 ABZMM63-160BAR/MPA-R/B120G
R900077650 ABZMM63-160BAR/MPA-U/V-G
R901239153 ABZMM63-160BAR/MPA-U/V100G
R900027260 ABZMM63-160BAR/PSI-R/B-G
R901294268 ABZMM63-160BAR/PSI-R/B050G
R901085369 ABZMM63-160BAR/PSI-R/B100G
R901294267 ABZMM63-160BAR/PSI-R/B100G
R900027964 ABZMM63-160BAR/PSI-U/V-G
R901253924 ABZMM63-160BAR/PSI-U/V100G
R900072028 ABZMM63-250BAR/MPA-R/B-G
R900089240 ABZMM63-250BAR/MPA-R/B-T
R901248562 ABZMM63-250BAR/MPA-R/B120G
R901221691 ABZMM63-250BAR/MPA-R/B130G
R901176230 ABZMM63-250BAR/MPA-R/B140G
R901176446 ABZMM63-250BAR/MPA-R/B150G
R901133930 ABZMM63-250BAR/MPA-R/B160G
R900074572 ABZMM63-250BAR/MPA-R/B200G
R901049647 ABZMM63-250BAR/MPA-R/B210G
R900771208 ABZMM63-250BAR/MPA-U/V-G
R900785978 ABZMM63-250BAR/MPA-U/V-T
R901239043 ABZMM63-250BAR/MPA-U/V140G
R901079699 ABZMM63-250BAR/MPA-U/V140G
R901116440 ABZMM63-250BAR/MPA-U/V210G
R900027261 ABZMM63-250BAR/PSI-R/B-G
R901322198 ABZMM63-250BAR/PSI-R/B090G
R901229163 ABZMM63-250BAR/PSI-R/B140G
R901302798 ABZMM63-250BAR/PSI-R/B150G
R901134960 ABZMM63-250BAR/PSI-R/B160G
R900027965 ABZMM63-250BAR/PSI-U/V-G
R901253928 ABZMM63-250BAR/PSI-U/V140G
R901110158 ABZMM63-400BAR-R/V210G
R900022459 ABZMM63-400BAR/MPA-R/B-G
R900990128 ABZMM63-400BAR/MPA-R/B-T
R901176415 ABZMM63-400BAR/MPA-R/B180G
R901248563 ABZMM63-400BAR/MPA-R/B200G
R901176052 ABZMM63-400BAR/MPA-R/B210G
R901213630 ABZMM63-400BAR/MPA-R/B220G
R901194389 ABZMM63-400BAR/MPA-R/B230G
R901129001 ABZMM63-400BAR/MPA-R/B250G
R901176231 ABZMM63-400BAR/MPA-R/B300G
R901038940 ABZMM63-400BAR/MPA-R/B315G
R901014618 ABZMM63-400BAR/MPA-R/B330G
R900053460 ABZMM63-400BAR/MPA-U/V-G
R900230979 ABZMM63-400BAR/MPA-U/V-T
R901270701 ABZMM63-400BAR/MPA-U/V175G
R901106729 ABZMM63-400BAR/MPA-U/V210G
R901231619 ABZMM63-400BAR/MPA-U/V250G
R900027262 ABZMM63-400BAR/PSI-R/B-G
R901126579 ABZMM63-400BAR/PSI-R/B210G
R901335811 ABZMM63-400BAR/PSI-R/B210G
R901126577 ABZMM63-400BAR/PSI-R/B250G
R901225865 ABZMM63-400BAR/PSI-R/B260G
R900027966 ABZMM63-400BAR/PSI-U/V-G
R901253933 ABZMM63-400BAR/PSI-U/V210G
R901290000 ABZMM63-400BAR/PSI-U/V250G
R900072027 ABZMM63-600BAR/MPA-R/B-G
R901248721 ABZMM63-600BAR/MPA-R/B280G
R901248564 ABZMM63-600BAR/MPA-R/B300G
R901210495 ABZMM63-600BAR/MPA-R/B315G
R901210122 ABZMM63-600BAR/MPA-R/B330G
R901352257 ABZMM63-600BAR/MPA-R/B350G
R901176411 ABZMM63-600BAR/MPA-R/B400G
R901037755 ABZMM63-600BAR/MPA-U/V-G
R901175790 ABZMM63-600BAR/MPA-U/V300G
R901105180 ABZMM63-600BAR/MPA-U/V330G
R901239042 ABZMM63-600BAR/MPA-U/V400G
R900067183 ABZMM63-600BAR/PSI-R/B-G
R901341681 ABZMM63-600BAR/PSI-R/B280G
R901257616 ABZMM63-600BAR/PSI-R/B330G
R900067154 ABZMM63-600BAR/PSI-U/V-G
R901253936 ABZMM63-600BAR/PSI-U/V330G
R900072029 ABZMM63-1000BAR/MPA-R/B-G
R901150441 ABZMM63-1000BAR/MPA-U/V-G
R900072022 ABZMM63-1000BAR/PSI-R/B-G
R900034024 ABZMM63-1000BAR/PSI-U/V-G
R900072004 ABZMM100-10BAR/MPA-R/B-G
R901108776 ABZMM100-10BAR/MPA-U/V-G
R900027263 ABZMM100-10BAR/PSI-R/B-G
R901150437 ABZMM100-10BAR/PSI-U/V-G
R900072006 ABZMM100-16BAR/MPA-R/B-G
R996541465 ABZMM100-16BAR/MPA-R/B-G1.4301
R996541434 ABZMM100-16BAR/MPA-U/B-G1.4301
R900762148 ABZMM100-16BAR/MPA-U/V-G
R900027264 ABZMM100-16BAR/PSI-R/B-G
R901150438 ABZMM100-16BAR/PSI-U/V-G
R900061658 ABZMM100-25BAR/MPA-R/B-G
R996541478 ABZMM100-25BAR/MPA-R/B-G1.4301
R996533805 ABZMM100-25BAR/MPA-U/B-G1.4301
R900061844 ABZMM100-25BAR/MPA-U/V-G
R900027265 ABZMM100-25BAR/PSI-R/B-G
R900027967 ABZMM100-25BAR/PSI-U/V-G
R900072008 ABZMM100-40BAR/MPA-R/B-G
R901108779 ABZMM100-40BAR/MPA-U/V-G
R900027266 ABZMM100-40BAR/PSI-R/B-G
R900027968 ABZMM100-40BAR/PSI-U/V-G
R900072011 ABZMM100-60BAR/MPA-R/B-G
R996555203 ABZMM100-60BAR/MPA-U/B-G1.4301
R901108780 ABZMM100-60BAR/MPA-U/V-G
R900027267 ABZMM100-60BAR/PSI-R/B-G
R900027969 ABZMM100-60BAR/PSI-U/V-G
R996511443 ABZMM100-10/MPA-U/B-G
R900072007 ABZMM100-100BAR/MPA-R/B-G
R901276218 ABZMM100-100BAR/MPA-R/B-G-G1/4
R901094102 ABZMM100-100BAR/MPA-R/B060G
R901042293 ABZMM100-100BAR/MPA-U/V-G
R901223467 ABZMM100-100BAR/MPA-U/V-T
R900027268 ABZMM100-100BAR/PSI-R/B-G
R900027970 ABZMM100-100BAR/PSI-U/V-G
R900072012 ABZMM100-160BAR/MPA-R/B-G
R996537059 ABZMM100-160BAR/MPA-R/B-G1.4301
R901276219 ABZMM100-160BAR/MPA-R/B-G-G1/4
R901065318 ABZMM100-160BAR/MPA-R/B100G
R996532585 ABZMM100-160BAR/MPA-U/B-G1.4301
R900762149 ABZMM100-160BAR/MPA-U/V-G
R900027269 ABZMM100-160BAR/PSI-R/B-G
R900027971 ABZMM100-160BAR/PSI-U/V-G
R901253911 ABZMM100-160BAR/PSI-U/V100G
R900066324 ABZMM100-250BAR/MPA-R/B-G
R996547692 ABZMM100-250BAR/MPA-R/B-G1.4301
R901276220 ABZMM100-250BAR/MPA-R/B-G-G1/4
R901038334 ABZMM100-250BAR/MPA-R/B160G
R901161794 ABZMM100-250BAR/MPA-R/B210G
R900063028 ABZMM100-250BAR/MPA-U/V-G
R901343834 ABZMM100-250BAR/MPA-U/V-G&
R900619420 ABZMM100-250BAR/MPA-U/V160G
R901202568 ABZMM100-250BAR/MPA-U/V210G
R901287779 ABZMM100-250BAR/MPA-U/V220G
R900027270 ABZMM100-250BAR/PSI-R/B-G
R901041916 ABZMM100-250BAR/PSI-R/B220G
R900027972 ABZMM100-250BAR/PSI-U/V-G
R901253912 ABZMM100-250BAR/PSI-U/V140G
R901093433 ABZMM100-250BAR/PSI-U/V160G
R901213817 ABZMM100-250BAR/PSI-U/V180G
R900066323 ABZMM100-400BAR/MPA-R/B-G
R901276217 ABZMM100-400BAR/MPA-R/B-G-G1/4
R901174144 ABZMM100-400BAR/MPA-R/B-T
R901063299 ABZMM100-400BAR/MPA-R/B210G
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力士樂REXROTH浮球開關
力士樂REXROTH具有兩個開關觸點和一個溫度觸點的浮子開關
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一、液壓傳動技術的應用
液壓傳動技術在近代工業制造中的應用
液壓傳動有許多突出的優點,因此它的應用非常廣泛,如一般工業用的塑料加工機械、壓力機械、機床等,行走機械中的工程機械、建筑機械、農業機械、汽車等;鋼鐵工業用的冶金機械、提升裝置、軋輥調整裝置等;土木水利工程用的防洪閘門及堤壩裝置、河床升降裝置、橋梁操縱機構等,發電廠渦輪機調速裝置、發電廠等等。
二、液壓傳動技術的原理與特點
1、液壓傳動的介紹
液壓傳動是用液體作為工作介質來傳遞能量和進行控制的傳動方式。液壓傳動和氣壓傳動并稱為流體傳動,是根據17世紀帕斯卡提出的液體靜壓力傳動原理而發展起來的一門新興技術,是工農業生產中應用廣泛的技術。
2、液壓傳動的優點
(1)體積小、重量輕,因此慣性力較小,當突然過載或停車時,不會發生大的沖擊,
(2)能在給定范圍內平穩的自動調節牽引速度,并可實現無極調速;
(3)換向容易,在不改變電機旋轉方向的情況下,可以較方便地實現工作機構旋轉和直線往復運動的轉換;
(4)液壓泵和液壓馬達之間用油管連接,在空間布置上彼此不受嚴格限制;
(5) 由于采用油液為工作介質,元件相對運動表面間能自行潤滑,磨損小,使用壽命長;
(6)操縱控制簡便,自動化程度高;
(7)容易實現過載保護。
液壓傳動有許多突出的優點,因此它的應用非常廣泛,如一般工業用的塑料加工機械、壓力機械、機床等,行走機械中的工程機械、建筑機械、農業機械、汽車等,鋼鐵工業用的冶金機械、提升裝置、軋輥調整裝置等,土木水利工程用的防洪閘門及堤壩裝置、河床升降裝置、橋粱操縱機構等;發電廠渦輪機調速裝置等等,船舶用的甲板起重機械、船頭門、艙壁閥、船尾推進器等,特殊技術用的控制裝置、測量浮標、升降旋轉舞臺等。
3、液壓傳動的基本原理
液壓傳動的基本原理是在密閉的容器內,利用有壓力的油液作為工作介質來實現能量轉換和傳遞動力的。其中的液體稱為工作介質,一般為礦物油,它的作用和機械傳動中的皮帶、鏈條和齒輪等傳動元件相類似。液壓傳動是利用帕斯卡原理!帕斯卡原理是大概就是:在密閉環境中,向液體施加一個力,這個液體會向各個方向傳遞這個力!力的大小不變!液壓傳動就是利用這個物理性質,向一個物體施加一個力,利用帕斯卡原理使這個力變大!從而起到舉起重物的效果!
液壓傳動在閥門行業也得到很大的應用,如閥門的機床制造加工設備、閥門]液壓試驗設備、閥門的液壓傳動裝置等。
三、液壓傳動系統的組成
1、液壓動力原件
將動力裝置的機械能轉換成為液壓能的裝置,其作用是為液壓傳動系統提供壓力油,是液壓傳動系統的動力源。例如液壓泵。
1.1液壓泵
液壓泵是液壓系統的動力元件,其作用是將原動機的機械能轉換成液體的壓力能,指液壓系統中的油泵,它向整個液壓系統提供動力。液壓泵的結構形式一般有齒輪泵、葉片泵和柱塞泵。
1.2齒輪泵
齒輪泵即依靠密封在個殼體中的兩個或兩個以上齒輪,在相互嚙合過程中所產生的工作空間容積變化來輸送液體的泵。齒輪泵的概念是很簡單的,即它的基本形式就是兩個尺寸相同的齒輪在一個緊密配合的殼體內相互嚙合旋轉,這個殼體的內部類似“8”字形,兩個齒輪裝在里面,齒輪的外徑及兩側與殼體緊密配合。來自于擠出機的物料在吸入口進入兩個齒輪中間,并充滿這一空間,隨著齒的旋轉沿殼體運動,*后在兩齒嚙合時排出。困油現象齒輪泵要平穩工作,齒輪嚙合的重合度必須大于1, 于是總有兩對齒輪同時嚙合, :并有一部分油液被圍困在兩對輪齒所圍成的封閉容腔之間。這個封閉的容腔開始隨著
齒輪的轉動逐漸減小,以后又逐漸加大。封閉腔容積的減小會使被困油液受擠壓而產生很高的壓力,并且從縫隙中擠出,導致油液發熱,并致使機件受到額外的負載,而封閉腔容積的增大又造成局部真空,使油液中溶解的氣體分離,產生氣穴現象。這些都將產生強烈的振動和噪音,這就是齒輪泵的困意現象。
危害:徑向不平衡力很大時能使軸彎曲,齒頂與殼體接觸,同時加速軸承的磨損,降低軸承的壽命。
消除困油現象方法:通常是在兩側蓋板上開卸荷槽,使封閉腔容積誠小時通過左邊的卸荷槽與壓油腔相通,容積增大時通過右邊的卸荷槽與吸油腔相通。
1.3葉片泵
葉片泵即通過葉輪的旋轉,將動力機的機械能轉換為水能(勢能、動能、壓能)的水力機械。
葉片泵轉子旋轉時,葉片在離心力和壓力油的作用下,尖部緊貼在定子內表面上。這樣兩個葉片與轉子和定子內表面所構成的工作容積,先由小到大吸油后再由大到小排油,葉片旋轉一周時,完成兩次吸油與排油。
1.4柱塞泵
柱塞泵即利用柱塞在泵缸體內往復運動,使柱塞與泵壁間形成容積改變,反復吸入和排;出液體并增高其壓力的泵。
柱塞泵是液壓系統的一個重要裝置。它依靠柱塞在缸體中往復運動,使密封工作容腔的容積發生變化來實現吸油、壓油。柱塞泵具有額定壓力高、結構緊湊、效率高和流量調節方便等優點,被廣泛應用于高壓、大流量和流量需要調節的場合,諸如液壓機、工程機械和船舶中。
2、液壓執行元件
將液壓能轉換為機械能的裝置,其作用是在壓力油的推動下輸出力和速度或轉矩和速度,以驅動工作裝置做工。例如液壓缸、液壓馬達。
2.1液壓馬達
液壓馬達習慣上是指輸出旋轉運動的,將液壓泵提供的液壓能轉變為機械能的能量轉換裝置。
液壓馬達亦稱為油馬達,主要應用于注塑機械、船舶、起揚機、工程機械、建筑機械、煤礦機械、礦山機械、冶金機械、船舶機械、石油化工、港口機械等。
高速馬達齒輪馬達具有體積小、重量輕、結構簡單、工藝性好、對油液的污染不敏感、耐沖擊和慣性小等優點。缺點有扭矩脈動較大、效率較低、起動扭矩較小(僅為額定扭矩的60%-一70%)和低速穩定性差等。
2.2液壓缸
液壓缸是將液壓能轉變為機械能的、做直線往復運動(或擺動運動)的液壓執行元件。它結構簡單、工作可靠。用它來實現往復運動時,可免去減速裝置,并且沒有傳動間隙,運動平穩,因此在各種機械的液壓系統中得到廣泛應用。液壓缸輸出力和活塞有效面積及其兩邊的壓差成正比;液壓缸基本上由缸筒和缸蓋、活塞和活塞桿、密封裝置、緩神裝置與排氣裝置組成。緩神裝置與排氣裝置視具體應用場合而定,其他裝置則必不可少。
3.3液壓控制調節元件
用來控制液壓傳動系統中油液的流動方向、壓力和流量,以保證液壓執行元件和工作裝置完成指定工作。
液壓傳動中用來控制液體壓力、流量和方向的元件。其中控制壓力的稱為壓力控制閥,控制流量的稱為流量控制閥,控制通、斷和流向的稱為方向控制閥。
3.4液壓輔助元件
保證液壓傳動系統正常工作。例如油箱、油管、濾油器。
液壓輔件是系統的一一個重要組成部分,其合理設計和選用在很大程度上影響液壓系統的效率、噪聲、溫升、工作可靠性等技術性能。主要包括:
3.4.1過濾器
過濾器的作用:濾去油中雜質,維護油液清潔,防止油液污染,保證系統正常工作。
3.4.2蓄能器
蓄能器的作用:
蓄能器是液壓系統中儲存和釋放壓力能的裝置。
1.作輔助動力源或緊急動力源在工作循環不同階段需要的流量變化很大時,常采用蓄能器和一個流量較小的泵組成油源。另外當驅動泵的原動機發生故障時,蓄能器可作緊急動力源。
2.保壓和補充泄漏需要較長時間保壓而泵卸載時,可利用蓄能器釋放儲存的壓力油,補充系統泄漏,保持系統壓力。
3.吸收沖擊和消除壓力脈動在壓力沖擊處和泵的出口安裝蓄能器可吸收壓力沖擊峰值和壓力脈動,提高系統工作的平穩性。
3.4.3油箱
油箱是液壓系統中儲存液壓油用。
油箱的功用:
儲存系統所需的足夠油液;;
散發油液中的熱量;
逸出溶解在油液中的空氣; :
沉淀油液中的污物;
對中小型液壓系統,泵裝置及一些液壓元件還安裝在油箱頂板上。
3.4.4熱交換器
系統能量損失轉換為熱量以后,會使油液溫度升高。若長時間油溫過高,油液粘度下降,泄漏增加,密封老化,油液氧化,嚴重影響系統正常工作。為保證正常工作溫度在20~65C,需要在系統中安裝冷卻器。相反,油溫過低,油液粘度過大,設備啟動困難,壓力損失加大并引起過大的振動。此種情況下系統應安裝加熱器,將油液溫度升高到適合的溫度。
3.4.5管件
管件是用來連接液壓元件、輸送液壓油液的連接件。它應保證有足夠的強度,沒有泄漏,密封性能好,壓力損失小,拆裝方便。
3.4.6密封裝置
密封裝置用來防止系統油液的內外泄漏,以及外界灰塵和異物的侵入,保證系統建立必要壓力。
3.5液壓工作介質
工作介質指傳動液體,通常被稱為液壓油。
3.5.1液壓油
液壓油引就是利用液體壓力能的液壓系統使用的液壓介質,在液壓系統中起著能量傳遞、系統潤滑、防腐、防銹、冷卻等作用。對于液壓油來說,首先應滿足液壓裝置在工作溫度下與啟動溫度下對液體粘度的要求,由于油的粘度變化直接與液壓動作、傳遞效率和傳遞精度有關,還要求油的粘溫性能和剪切安定性應滿足不同用途所提出的各種需求。
3.5.2液壓油的要求
質量要求:
1.合適的粘 度和良好的粘溫性能,以保證液壓元件在工作壓力和工作溫度發生變化的條件下得到良好潤滑、冷卻和密封。
2.良好的極壓抗磨性, 以保證油泵、液壓馬達、控制閥和油缸中的摩擦副在高壓、高速苛刻條件下得到正常的潤滑,減少磨損。
3.優良的抗氧化安定性、水解安定性和熱穩定性,以抵抗空氣、水分和高溫、高壓等因素的影響或作用,使其不易老化變質,延長使用壽命。
4.良好的抗泡性 和空氣釋放值,以保證在運轉中受到機械劇烈攪拌的條件下產生的泡沫能迅速消失:并能將混入油中的空氣在較短時間內釋放出來,以實現準確、靈敏、平穩地傳遞靜壓。
5.良好的抗乳化性, 能與混入油中的水分迅速分離,以免形成乳化液,引起液壓系統的金屬材質銹蝕和降低使用性能。
6.良好的防銹性,以防止金屬表面銹蝕。 -
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