力士樂(lè)Rexroth比例閥在使用過(guò)程中,應(yīng)注意對(duì)感載比例閥的檢查調(diào)整.當(dāng)感載彈簧過(guò)松時(shí),后輪制動(dòng)力就會(huì)減小,此時(shí)應(yīng)調(diào)整感載彈簧,但不可調(diào)得過(guò)緊,否則會(huì)使后輪制動(dòng)力太大而失去側(cè)向控制能力,發(fā)生甩尾。正確的調(diào)整方法是.在平坦的地面上使車身落地,車輛空載,調(diào)整感載彈簧,使杠桿與活塞間無(wú)間隙即可.在有條件的情況下,可采用精確的調(diào)整方法.通過(guò)測(cè)量前后輪制動(dòng)管路壓力,繪制壓力分配特性曲線,確認(rèn)調(diào)整是否合格。
德國(guó)Rexroth力士樂(lè)比例閥的工作原理，REXROTH力士樂(lè)比例閥結(jié)構(gòu)，力士樂(lè)比例閥作用
REXROTH力士樂(lè)比例閥當(dāng)左側(cè)受力大于右側(cè)受力與感載彈簧預(yù)緊力之和時(shí)（此時(shí)的壓力為Ps）,活塞不斷右移,zui后使閥門與閥座接觸而關(guān)閉,將輸入輸出油路隔絕,達(dá)到平衡狀態(tài)。P1若進(jìn)一步升高時(shí),則活塞左移,閥門再度打開,制動(dòng)液流入出油口,使P2也升高。Rexroth力士樂(lè)比例閥奧迪四輪驅(qū)動(dòng)轎車制動(dòng)系統(tǒng)在關(guān)閉ABS后,感載比例閥可用于防止后輪的過(guò)制動(dòng)。當(dāng)汽車直線行駛時(shí),兩后輪的制動(dòng)壓力可根據(jù)車輛載荷增減;當(dāng)汽車左轉(zhuǎn)彎時(shí),左后輪載荷下降,由于感載比例閥位于左后輪附近,可同樣起作用使兩后輪的制動(dòng)壓力都下降.而當(dāng)汽車右轉(zhuǎn)彎時(shí),右后輪載荷減小,汽車的側(cè)向加速度使感載比例閥起作用,降低右后輪的制動(dòng)壓力。這樣的自動(dòng)調(diào)節(jié)使前、后輪的制動(dòng)力分配和左、右后輪的制動(dòng)力分配都接近理想的制動(dòng)力分配,從而提高了制動(dòng)安全性。
以下是部分產(chǎn)品型號(hào)舉例：
HED80A1X/200K14KW
R900052714
HED80A1X/200K14AS
R900053689
HED80A1X/50K14A
R900053690
HED80A1X/100K14A
R900054081
HED80A1X/350K14A
R900054195
HED80P1X/630K14
R900058051
HED50P1-2X/100K14
R900058282
HED50P1-2X/630K14
R900059883
HED80A1X/200K14A
R900062362
HED50A1-2X/350K14
R900081394
HED80P1X/630K14S
R900081946
HED80A1X/50K14AS
R900081947
HED80H1X/50K14AS
R900083066
HED80A1X/100K14AS
R900083069
HED80H1X/100K14AS
R900083070
HED80A1X/350K14AS
R900089416
HED50A1-2X/100K14
R900207382
HED80A1X/630K14AS
R900212220
HED20A2X/400K6L24
R900220325
HED20A2X/200K6L24
R900227649
HED20A2X/25K6L24
R900248139
HED20A2X/63K6L24
R900383624
HED1KA4X/350
R900383852
HED1KA4X/100
R900383853
HED1KA4X/500
R900383854
HED10A4X/50
R900383855
HED10A4X/100
R900383856
HED10A4X/350
R900389451
HED50A1-2X/210K14
R900444121
HED20A2X/25
R900444254
HED20A2X/63
R900444255
HED20A2X/100
R900446818
HED20A2X/25KL24
R900447300
HED20A2X/100K
R900447862
HED20A2X/25K
R900448018
HED20A2X/400KL220
R900448872
HED20A2X/200L220
R900448891
HED1KA4X/500K
R900451231
HED20A2X/400KL24
R900456417
HED50P1-2X/210K14
R900456950
HED20A2X/200KL24
R900464646
HED20A3X/400S01
R900499680
HED20A2X/100KL24
R900510560
HED1KA4X/100K
R900511812
HED1KA4X/350K
R900514952
HED50A1-2X/50K14
R900536021
HED80A1X/50K14
R900536027
HED80A1X/100K14
R900536033
HED80A1X/350K14
R900536041
HED80H1X/50K14
R900536045
HED80H1X/100K14
R900536049
HED80H1X/350K14
R900536052
HED80P1X/50K14
R900536053
HED80P1X/50K14S
R900536058
HED80A1X/50K14KS
R900536063
HED80A1X/100K14KS
R900536067
HED80A1X/350K14KS
R900536069
HED80H1X/50K14KS
R900536072
HED80H1X/100K14KS
R900536098
HED80H1X/350K14S
R900536599
HED80A1X/200K14
R900539655
HED80H1X/100K14S
R900539656
HED80A1X/100K14S
R900560124
HED80H1X/200K14S
R900560420
HED80P1X/200K14S
R900562038
HED50P1-2X/50K14
R900563879
HED80H1X/200K14
R900565225
HED80A1X/200K14S
R900565571
HED80P1X/350K14
R900565609
HED80A1X/200K14KS
R900565750
HED80P1X/100K14S
R900568435
HED80H1X/200K14KS
R900569028
HED80P1X/100K14KS
R900570817
HED80P1X/350K14KS
R900571065
HED80A1X/350K14KW
R900571568
HED80A1X/630K14
R900571912
HED80H1X/350K14KS
R900571913
HED80P1X/50K14KS
R900571914
HED80P1X/100K14
R900571915
HED80P1X/200K14
R900571916
HED80P1X/200K14KS
R900571917
HED80P1X/350K14S
R900573428
HED80A1X/100K14KW
R900592380
HED50A1-2X/630K14
R900773022
HEDE10A1-1X/100K41G24V
R900773024
HEDE10A1-1X/250K41G24V
R900773025
HEDE10A1-1X/400K41G24V
R900773028
HEDE10A1-1X/600K41G24V
DBETBEX-1X/250G24K31A1M
HED80P1X/50K14S
HED80H1X/1200K14A
HED80H1X1200K14A
R901094159 HED80A2X/100K14KW
R901095375 HED80H2X/100K14S
R901095551 HED80A2X/100K14KS
R901099808 HED80H2X/200K14
R901099811 HED80H2X/200K14KS
R901101640 HED80H2X/350K14
R901101698 HED80A2X/50K14
R901102349 HED80H2X/50K14
R901102356 HED80H2X/50K14KS
R901102360 HED80H2X/100K14
R901102362 HED80H2X/200K14S
R901102365 HED80P2X/350K14S
R901102702 HED80A2X/50K14KS
R901102704 HED80A2X/50K14S
R901102706 HED80A2X/100K14
R901102708 HED80A2X/200K14
R901102710 HED80A2X/350K14
R901102711 HED80A2X/100K14S
R901102712 HED80H2X/50K14S
R901102713 HED80H2X/350K14S
R901102716 HED80A2X/350K14KW
R901102721 HED80P2X/200K14