?A10VSO140DRS/32R-VPB22U99

武穴黎翔機電設備有限公司，詢價聯(lián)系人：何女士

詢價電話：0713-6542758，手機：18934630908????

詢價傳真：0713-6542758

詢價QQ:?736567721,704552157

現(xiàn)貨特價型號：R900925687?4WRAE10W1-30-22/G24N9K31/F1V??2臺

0811402141?DBETBEX-1X/315G24K31F1M?????2臺

充液閥是一種特殊的液控單向閥，一個方向止流，另一個方向自由流通，先導動作是由油口供壓的控制閥芯用液壓實現(xiàn)的，由此而直接打開主閥。這種閥為疊加系統(tǒng)而設計，即在一個基礎件上，可以疊加各種各樣的其它類別液壓閥。其主要作用是從油箱（或充液油箱）向液壓缸或者系統(tǒng)補充油液，以免出現(xiàn)吸空現(xiàn)象。帶控制的充液閥還能起快速排油的作用。

2.2充液閥的典型結構

充液閥有常閉式和常開式兩種典型結構。

(1)常閉式充液閥

常閉式充液閥有不可控式和可控式兩種形式，不可控式充液閥，它是由閥芯、導向套、復位彈簧、閥體和連接法蘭等主要零件組成。閥芯是蘑菇形的，結構較緊湊，流阻損失??；閥芯重量輕慣性小，動作靈敏。

對于可控式充液閥?？刂朴屯ㄈ肟刂聘椎纳锨?，控制活塞就可使閥芯開啟?？刂聘咨锨唤佑拖鋾r，控制活塞在彈簧的作用下復位?？刂聘紫虑慌c充液油箱是想通的。這兩種結構的充液閥都直接安裝在液壓缸的端部，安裝方便，節(jié)省了與工作液壓缸連接的管道。浸入式結構，即上部全浸在充液油箱中，結構很緊湊，流阻損失很小。但充液油箱必須安裝在液壓缸的底部，還要解決充液油箱與液壓缸缸底之間的密封問題。檢修不太方便。管道連接式結構，即通過管道和法蘭與充液油箱相連，與浸入式相比，充液油箱的位置布置較靈活，檢修也較方便，但結構顯得龐大，流阻損失也稍大。

(2)常開式充液閥

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比例換向閥D31FBE01DC4NF00??

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直動式溢流閥VSA315A0623

減壓閥VM210A06VG?

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parker,D41FTE01FC1NF00，

parker,D31FTE01CC4NF00，

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常開式充液閥的優(yōu)點在于充液過程中不需要克服彈簧力，從而減少了吸油阻力。但結構較復雜，制造要求也較高。

常開式充液閥。閥芯在彈簧的作用下停在閥上部，充液閥處于開啟狀態(tài)。當轉入工作行程時，先在充液閥的控制口通入壓力油，閥芯下行，充液閥關閉。由于閥芯上部面積略大于其下部面積，故隨著液壓缸油壓的升高，充液閥越關越緊。當活塞回程時，液壓缸先行卸壓，且充液閥的控制口與油箱相通，充液閥可自動開啟，使液壓缸中的油液大量排回充液油箱。

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DG4V-3-2N-M-U-H7-60????15臺

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0811402110?DBE10X-1X/315G24-8NZ4M

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0811402108?DBE10X-1X/80G24-8NZ4M

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R978901340?DA10-1-5X/315-17YV

R978901377?DA20-1-5X/315-17YV

R978902561?DA20-2-5X/315-10

圖2.1為單回路充液閥的結構，主要由控制充液壓力上下限的先導閥和充液主閥構成，圖中的P、O、A、T分別為油泵壓力油進油口、通往下游液壓系統(tǒng)的出口、通往蓄能器出口及回油口。

充液閥的充液過程為:當蓄能器的壓力低于充液閥設定的下限壓力時，作用在上限單向閥閥芯3上的液壓力低于先導閥4左端彈簧8的作用力，使下限單向閥6關閉，上限單向閥3打開，蓄能器內的壓力油經(jīng)先導閥芯4、節(jié)流通道Ⅱ進入主閥右腔，推動主閥芯9克服左腔壓力向左移動，逐漸降低主閥開度，P與O口間的節(jié)流作用造成P口壓力增高。隨后P口與A口間的單向閥打開，經(jīng)節(jié)流口向蓄能器供液。當蓄能器壓力達到上限時，作用在先導閥右端單向閥閥芯3的液壓力大于左端彈簧壓力，下限單向閥6打開，上限單向閥3關閉，主閥右腔經(jīng)先導閥于T口相通泄壓，在左端壓力作用下克服右端彈簧壓力右移，P口與A口間的單向閥關閉，恢復全流量向下游系統(tǒng)供液，充液過程結束。

VT-VRPA2-527-1X/V0/RTP,

parker線圈，MSM?GRFY060F20E16?=6V

4WRE6W-08-2X/6EG24K4V

ZDR6DP2-4X/75YM

ZDR10VA5-3X/100YM

DR20-5-5X/200YM

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R900224526??M-3SED?6?CK1X/350CG24N9K4/V

4WE?6?D6X/EG220N9K4/V/60

丹佛斯馬達OMS400

0811?405?119

VT-VRPA2-527-1X/V0/RTP

丹尼遜?M14G1N1A?訂貨號013-44186-0????

PARKER,P2060S6020A?

PARKER,D3W020BNTW

REXROTH,DBE6-1X/315YG24K4M

PV028R1K1T1NMMC?

PVCMALZN1,

PVACPPCMN35,

D31FTE02CC4NG00新型號D31FBE02CC4NG00???

D91FTE02HC4NG00?新型號D91FBE02HC4NG00??

D31FTE01CC4NG00?新型號D31FBE01CC4NG00?

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parker，3129625010

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F12-060-MS-SH-T-000-000-0

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力士樂，ZDRE10VP2-20/200LMG24K4M

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rexroth，0510665346

DAIKIN?EHM6-M07-40-028A

parker,1C943-8-4

REXROTH電機,MSK101D-0200-NN-M1-RP2-NNNN

vickers,KADG4V?333?C30X?HMFPD7?H7?61

R900534143??PV7-1X/10-20RE01MCO-10

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parker，D3L30BV

PD060PB04SRS5AAM0S0000000

parker,D31FBE01CC1NF0010

parker,TE0080MW100AAAB

PARKER,RE06M25W2V1XW20?

REXROTH,4WE6JB6X/EG24N9K4

4WEH16J7X/6EG24N9ETK4/B08?????

4WEH16J7X/6EG24N9ETS2K4/B08????

4WEH10x93-4x/6EG24N9TS2K4/B08?

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