MSCV-02-A-1-B臺(tái)灣JGH抗衡閥MSCV-03 MSCV-06- A B -0 1 23 4久岡

液壓速度控制系統(tǒng)常見故障

液壓系統(tǒng)的速度調(diào)節(jié)是液壓泵站的重要部分，執(zhí)行機(jī)構(gòu)速度不正常，液壓機(jī)械就無法工作。那么速度控制系統(tǒng)主要故障及其産生原因有哪些呢？

一、載荷增加時(shí)進(jìn)給速度顯著下降的主要原因

1.調(diào)速閥中的減壓閥卡死于打開位置，則載荷增加時(shí)通過節(jié)流閥的流量下降；

2.液壓缸活塞或系統(tǒng)中某個(gè)或幾個(gè)元件的洩漏隨載荷、壓力增高而顯著加大。

二、執(zhí)行機(jī)構(gòu)爬行的主要原因

1.系統(tǒng)中進(jìn)入空氣；

2.在進(jìn)油節(jié)流調(diào)速系統(tǒng)中，液壓缸無背壓或背壓不足，外載荷變化時(shí)，導(dǎo)緻油缸速度變化；

3.節(jié)流閥的閥口堵塞，系統(tǒng)洩漏不穩(wěn)定，調(diào)速閥中減壓閥不靈活，造成流量不穩(wěn)定而引起爬行；

4.液壓油泵的流量脈動(dòng)大，溢流閥振動(dòng)造成系統(tǒng)壓力脈動(dòng)大，是液壓缸輸入壓力油波動(dòng)而引起爬行；

5.由于導(dǎo)緻潤滑不良，導(dǎo)軌與液壓缸軸線不平行，活塞桿密封壓的過緊，活塞桿彎曲變形等原因，導(dǎo)緻液壓缸工作行程時(shí)摩擦力變化較大而引起爬行。

三、執(zhí)行機(jī)構(gòu)（液壓缸、液壓馬達(dá)）無小進(jìn)給的主要原因

1.節(jié)流閥的節(jié)流口堵塞，導(dǎo)緻無小流量或小流量不穩(wěn)定；

2.調(diào)速閥定差式減壓閥的彈簧過軟，使節(jié)流閥前后壓差過低，導(dǎo)緻通過調(diào)速閥的小流量不穩(wěn)定；

3.調(diào)速閥中減壓閥卡死，造成節(jié)流閥前后壓差隨外載荷而變，經(jīng)常見到的是由于小進(jìn)給時(shí)荷載較小，導(dǎo)緻最小進(jìn)給量增大。

電磁換向閥：
4WE-10A/E-G24-20 4WE-10A/E-W110-20 4WE-10A/E-W220-20 4WE-10A/E-W240-20 4WE-10B/E-G24-20 4WE-10B/E-W110-20
4WE-10B/E-W220-20 4WE-10B/E-W240-20 4WE-10C/E-G24-20 4WE-10C/E-W110-20 4WE-10C/E-W220-20 4WE-10C/E-W240-20
4WE-10D/E-G24-20 4WE-10D/E-W110-20 4WE-10D/E-W220-20 4WE-10D/E-W240-20 4WE-10E/E-G12-20 4WE-10E/E-W110-20
4WE-10E/E-W240-20 4WE-10F/E-G12-20 4WE-10F/E-W110-20 4WE-10F/E-W240-20 4WE-10G/E-G12-20 4WE-10G/E-W110-20
4WE-10G/E-W240-20 4WE-10P/E-W240-20 4WE-10V/E-W240-20 4WE-6-A/E-G12-20 4WE-6-A/E-G24-20 4WE-6-A/E-W110-20
4WE-6-A/E-W220-20 4WE-6-A/E-W240-20 4WE-6-AO/E-G12-20 4WE-6-AO/E-G24-20 4WE-6-AO/E-W110-20
4WE-6-AO/E-W220-20 4WE-6-AO/E-W240-20 4WE-6-AOF/E-G12-20 4WE-6-AOF/E-G24-20 4WE-6-AOF/E-W110-20
4WE-6-AOF/E-W220-20 4WE-6-AOF/E-W240-20 4WE-6-B/E-G12-20 4WE-6-B/E-G24-20 4WE-6-B/E-W110-20 4WE-6-B/E-W220-20
4WE-6-B/E-W240-20 4WE-6-BO/E-G12-20 4WE-6-BO/E-G24-20 4WE-6-BO/E-W110-20 4WE-6-BO/E-W220-20
4WE-6-BO/E-W240-20 4WE-6-BOF/E-G12-20 4WE-6-BOF/E-G24-20 4WE-6-BOF/E-W110-20 4WE-6-BOF/E-W220-20
4WE-6-BOF/E-W240-20 4WE-6-C/E-G12-20 4WE-6-C/E-G24-20 4WE-6-C/E-W110-20 4WE-6-C/E-W220-20 4WE-6-C/E-W240-20
4WE-6-CO/E-G12-20 4WE-6-CO/E-G24-20 4WE-6-CO/E-W110-20 4WE-6-CO/E-W220-20 4WE-6-CO/E-W240-20
4WE-6-COF/E-G12-20 4WE-6-COF/E-G24-20 4WE-6-COF/E-W110-20 4WE-6-COF/E-W220-20 4WE-6-COF/E-W240-20
4WE-6-D/E-G12-20 4WE-6-D/E-G24-20 4WE-6-D/E-W110-20 4WE-6-D/E-W220-20 4WE-6-D/E-W240-20 4WE-6-DO/E-G12-20
4WE-6-DO/E-G24-20 4WE-6-DO/E-W110-20 4WE-6-DO/E-W220-20 4WE-6-DO/E-W240-20 4WE-6-DOF/E-G12-20
4WE-6-DOF/E-G24-20 4WE-6-DOF/E-W110-20 4WE-6-DOF/E-W220-20 4WE-6-DOF/E-W240-20 4WE-6-E/E-G12-20
4WE-6-E/E-G24-20 4WE-6-E/E-W110-20 4WE-6-E/E-W220-20 4WE-6-E/E-W240-20 4WE-6-EO/E-G12-20 4WE-6-EO/E-G24-20
4WE-6-EO/E-W110-20 4WE-6-EO/E-W240-20 4WE-6-EOF/E-G12-20 4WE-6-EOF/E-G24-20 4WE-6-EOF/E-W110-20
4WE-6-EOF/E-W220-20 4WE-6-EOF/E-W240-20 4WE-6-F/E-G12-20 4WE-6-F/E-G24-20 4WE-6-F/E-W110-20 4WE-6-F/E-W220-20
4WE-6-F/E-W240-20 4WE-6-FO/E-G12-20 4WE-6-FO/E-G24-20 4WE-6-FO/E-W110-20 4WE-6-FO/E-W220-20
4WE-6-FO/E-W240-20 4WE-6-FOF/E-G12-20 4WE-6-FOF/E-G24-20 4WE-6-FOF/E-W110-20 4WE-6-FOF/E-W220-20
4WE-6-FOF/E-W240-20 4WE-6-G/E-G12-20 4WE-6-G/E-G24-20 4WE-6-G/E-W110-20 4WE-6G/E-W220/50-20 4WE-6-G/E-W220-20
4WE-6-G/E-W240-20 4WE-6-GO/E-G12-20 4WE-6-GO/E-G24-20 4WE-6-GO/E-W110-20 4WE-6-GO/E-W220-20
4WE-6-GO/E-W240-20 4WE-6-GOF/E-G12-20 4WE-6-GOF/E-G24-20 4WE-6-GOF/E-W110-20 4WE-6-GOF/E-W220-20
4WE-6-GOF/E-W240-20 4WE-6-H/E-G12-20 4WE-6-H/E-G24-20 4WE-6-H/E-W110-20 4WE-6-H/E-W220-20 4WE-6-H/E-W240-20
4WE-6-HA/E-W240-20 4WE-6-HO/E-G12-20 4WE-6-HO/E-G24-20 4WE-6-HO/E-W110-20 4WE-6-HO/E-W220-20
4WE-6-HO/E-W240-20 4WE-6-HOF/E-G12-20 4WE-6-HOF/E-G24-20 4WE-6-HOF/E-W110-20 4WE-6-HOF/E-W220-20
4WE-6-HOF/E-W240-20 4WE-6-J/E-G12-20 4WE-6-J/E-G24-20 4WE-6-J/E-W110-20 4WE-6-J/E-W220/50-20 4WE-6-J/E-W220-20
4WE-6-J/E-W240-20 4WE-6-JO/E-G12-20 4WE-6-JO/E-G24-20 4WE-6-JO/E-W110-20 4WE-6-JO/E-W220-20
4WE-6-JO/E-W240-20 4WE-6-JOF/E-G12-20 4WE-6-JOF/E-G24-20 4WE-6-JOF/E-W110-20 4WE-6-JOF/E-W220-20
4WE-6-JOF/E-W240-20 4WE-6-L/E-G12-20 4WE-6-L/E-G24-20 4WE-6-L/E-W110-20 4WE-6-L/E-W220-20 4WE-6-L/E-W240-20
4WE-6-LO/E-G12-20 4WE-6-LO/E-G24-20 4WE-6-LO/E-W110-20 4WE-6-LO/E-W220-20 4WE-6-LO/E-W240-20
4WE-6-LOF/E-G12-20 4WE-6-LOF/E-G24-20 4WE-6-LOF/E-W110-20 4WE-6-LOF/E-W220-20 4WE-6-LOF/E-W240-20
4WE-6-M/E-G12-20 4WE-6-M/E-G24-20 4WE-6-M/E-W110-20 4WE-6-M/E-W220-20 4WE-6-M/E-W240-20 4WE-6-MO/E-G12-20
4WE-6-MO/E-G24-20 4WE-6-MO/E-W110-20 4WE-6-MO/E-W220-20 4WE-6-MO/E-W240-20 4WE-6-MOF/E-G12-20
4WE-6-MOF/E-G24-20 4WE-6-MOF/E-W110-20 4WE-6-MOF/E-W220-20 4WE-6-MOF/E-W240-20 4WE-6-P/E-G12-20
4WE-6-P/E-G24-20 4WE-6-P/E-W110-20 4WE-6-P/E-W220-20 4WE-6-P/E-W240-20 4WE-6-PO/E-G12-20 4WE-6-PO/E-G24-20
4WE-6-PO/E-W110-20 4WE-6-PO/E-W220-20 4WE-6-PO/E-W240-20 4WE-6-POF/E-G12-20 4WE-6-POF/E-G24-20
4WE-6-POF/E-W110-20 4WE-6-POF/E-W220-20 4WE-6-POF/E-W240-20 4WE-6-Q/E-G12-20 4WE-6-Q/E-G24-20
4WE-6-Q/E-W110-20 4WE-6-Q/E-W220-20 4WE-6-Q/E-W240-20 4WE-6-QO/E-G12-20 4WE-6-QO/E-G24-20
4WE-6-QO/E-W110-20 4WE-6-QO/E-W220-20 4WE-6-QO/E-W240-20 4WE-6-R/E-G12-20 4WE-6-R/E-G24-20 4WE-6-R/E-W110-20
4WE-6-R/E-W220-20 4WE-6-R/E-W240-20 4WE-6-RO/E-G12-20 4WE-6-RO/E-G24-20 4WE-6-RO/E-W110-20 4WE-6-RO/E-W220-20
4WE-6-RO/E-W240-20 4WE-6-ROF/E-G12-20 4WE-6-ROF/E-G24-20 4WE-6-ROF/E-W110-20 4WE-6-ROF/E-W220-20
4WE-6-ROF/E-W240-20 4WE-6-T/E-G12-20 4WE-6-T/E-G24-20 4WE-6-T/E-W110-20 4WE-6-T/E-W220-20 4WE-6-T/E-W240-20
4WE-6-TO/E-G12-20 4WE-6-TO/E-G24-20 4WE-6-TO/E-W110-20 4WE-6-TO/E-W220-20 4WE-6-TO/E-W240-20
4WE-6-TOF/E-G12-20 4WE-6-TOF/E-G24-20 4WE-6-TOF/E-W110-20 4WE-6-TOF/E-W220-20 4WE-6-TOF/E-W240-20
4WE-6-U/E-G12-20 4WE-6-U/E-G24-20 4WE-6-U/E-W110-20 4WE-6-U/E-W220-20 4WE-6-U/E-W240-20 4WE-6-UO/E-G12-20
4WE-6-UO/E-G24-20 4WE-6-UO/E-W110-20 4WE-6-UO/E-W220-20 4WE-6-UO/E-W240-20 4WE-6-UOF/E-G12-20
4WE-6-UOF/E-G24-20 4WE-6-UOF/E-W110-20 4WE-6-UOF/E-W220-20 4WE-6-UOF/E-W240-20 4WE-6-V/E-G12-20
4WE-6-V/E-G24-20 4WE-6-V/E-W110-20 4WE-6-V/E-W220-20 4WE-6-V/E-W240-20 4WE-6-VO/E-G12-20 4WE-6-VO/E-G24-20
4WE-6-VO/E-W110-20 4WE-6-VO/E-W220-20 4WE-6-VO/E-W240-20 4WE-6-VOF/E-G12-20 4WE-6-VOF/E-G24-20
4WE-6-VOF/E-W110-20 4WE-6-VOF/E-W220-20 4WE-6-VOF/E-W240-20 4WE-6-Y/E-G12-20 4WE-6-Y/E-G24-20
4WE-6-Y/E-W110-20 4WE-6-Y/E-W220-20 4WE-6-Y/E-W240-20 4WE-6-YO/E-G12-20 4WE-6-YO/E-G24-20 4WE-6-YO/E-W110-20
4WE-6-YO/E-W220-20 4WE-6-YO/E-W240-20 4WE-6-YOF/E-G12-20 4WE-6-YOF/E-G24-20 4WE-6-YOF/E-W110-20
4WE-6-YOF/E-W220-20 4WE-6-YOF/E-W240-20 4WE-Q-QOF/E-G12-20 4WE-Q-QOF/E-G24-20 4WE-Q-QOF/E-W110-20
4WE-6-QOF/E-W220-20 4WE-Q-QOF/E-W240-20
液控方向閥：
DHG-04-2B2-ET-50-W110-10-AB-K DHG-04-2B2-ET-50-W240-10-AB-K DHG-04-2B3-ET-50-W110-10-AB-K
DHG-04-2B3-ET-50-W240-10-AB-K DHG-04-2D2-ET-50-W110-10-AB-K DHG-04-2D2-ET-50-W240-10-AB-K
DHG-04-2D3-ET-50-W110-10-AB-K DHG-04-2D3-ET-50-W240-10-AB-K DHG-04-3C2-ET-50-W110-10-AB-K
DHG-04-3C2-ET-50-W240-10-AB-K DHG-04-3C3-ET-50-W110-10-AB-K DHG-04-3C3-ET-50-W240-10-AB-K
DHG-04-3C4-ET-50-W110-10-AB-K DHG-04-3C4-ET-50-W240-10-AB-K DHG-04-3C5-ET-50-W110-10-AB-K
DHG-04-3C5-ET-50-W240-10-AB-K DHG-04-3C6-ET-50-W110-10-AB-K DHG-04-3C6-ET-50-W240-10-AB-K 
DHG-04-2B10B DHG-04-2B11A DHG-04-2B11B DHG-04-2B12A DHG-04-2B12B DHG-04-2B2 DHG-04-2B2A
DHG-04-2B2B DHG-04-2B2-ET-50-W110-10-AB-K DHG-04-2B2-ET-50-W240-10-AB-K DHG-04-2B2S DHG-04-2B3
DHG-04-2B3A DHG-04-2B3B DHG-04-2B3-ET-50-W110-10-AB-K DHG-04-2B3-ET-50-W240-10-AB-K DHG-04-2B3S
DHG-04-2B40A DHG-04-2B40B DHG-04-2B4A DHG-04-2B4B DHG-04-2B5A DHG-04-2B5B DHG-04-2B60A DHG-04-2B60B
DHG-04-2B6A DHG-04-2B6B DHG-04-2B8 DHG-04-2B8S DHG-04-2B9A DHG-04-2B9B DHG-04-2D2-ET-50-W110-10-AB-K
DHG-04-2D2-ET-50-W240-10-AB-K DHG-04-2D3-ET-50-W110-10-AB-K DHG-04-2D3-ET-50-W240-10-AB-K
DHG-04-2N2 DHG-04-2N3 DHG-04-3C10-50 DHG-04-3C11-50 DHG-04-3C12-50 DHG-04-3C2 DHG-04-3C2-50
DHG-04-3C2-ET-50-W110-10-AB-K DHG-04-3C2-ET-50-W240-10-AB-K DHG-04-3C3-50 DHG-04-3C3-ET-50-W110-10-AB-K
DHG-04-3C3-ET-50-W240-10-AB-K DHG-04-3C40-50 DHG-04-3C4-50 DHG-04-3C4-ET-50-W110-10-AB-K
DHG-04-3C4-ET-50-W240-10-AB-K DHG-04-3C5-50 DHG-04-3C5-ET-50-W110-10-AB-K DHG-04-3C5-ET-50-W240-10-AB-K
DHG-04-3C60-50 DHG-04-3C6-50 DHG-04-3C6-ET-50-W110-10-AB-K DHG-04-3C6-ET-50-W240-10-AB-K DHG-04-3C9-50
DHG-06-2B10B DHG-06-2B11A DHG-06-2B11B DHG-06-2B12A DHG-06-2B12B DHG-06-2B2 DHG-06-2B2A
DHG-06-2B2B DHG-06-2B2S DHG-06-2B3 DHG-06-2B3A DHG-06-2B3B DHG-06-2B3S DHG-06-2B40A DHG-06-2B40B
DHG-06-2B4A DHG-06-2B4B DHG-06-2B5A DHG-06-2B5B DHG-06-2B60A DHG-06-2B60B DHG-06-2B6A DHG-06-2B6B
DHG-06-2B8 DHG-06-2B8S DHG-06-2B9A DHG-06-2B9B DHG-06-2N2 DHG-06-2N3 DHG-06-3C10-50 DHG-06-3C11-50
DHG-06-3C12-50 DHG-06-3C2-50 DHG-06-3C3-50 DHG-06-3C40-50 DHG-06-3C4-50 DHG-06-3C5-50 DHG-06-3C60-50
DHG-06-3C6-50 DHG-06-3C9-50 DHG-10-2B10B DHG-10-2B11B DHG-10-2B12B DHG-10-2B2B DHG-10-2B3B
DHG-10-2B40B DHG-10-2B4B DHG-10-2B5B DHG-10-2B60B DHG-10-2B6B DHG-10-2B9B DHG-10-2N2 DHG-10-2N3
DHG-10-3C10-50 DHG-10-3C11-50 DHG-10-3C12-50 DHG-10-3C2-50 DHG-10-3C3-50 DHG-10-3C40-50 DHG-10-3C4-50
DHG-10-3C5-50 DHG-10-3C60-50 DHG-10-3C6-50 DHG-10-3C9-50
S-DSHG-10-3H60A220 S-DSHG-10-3H60-A220 S-DSHG-10-3H60-E-D24
抗衡閥：
J-CBEA-1-L J-PBC-A-L J-PBC-B-L J-PBC-D-L J-PBE-A-L J-PBE-B-L J-PBE-D-L J-PBG-A-L J-PBG-B-L J-PBG-D-L
溢流閥：
MRV-02-A-1-A-K MRV-02-A-1-B-K MRV-02-B-1-A-K MRV-02-B-1-B-K MRV-02-B-2-B MRV-02-P-1-A-K MRV-02-P-1-B
MRV-02-P-1-B-K MRV-02-P-3-B MRV-03-A-2-B-K MRV-03-A-2-B-L MRV-03-B-2-B-K MRV-03-B-2-B-L MRV-03-B-3-B
MRV-03-P-2-B-K MRV-03-P-2-B-L MRV-03-P-3-B MSCV-03-A-3-B
電磁控制溢流閥：
SBSG-03-1PN-1-L-30-10 SBSG-03-1PN-1-R-30-10 SBSG-03-1PN-2-L-30-10 SBSG-03-1PN-2-R-30-10 SBSG-03-1PN-3-L-30-10
SBSG-03-1PN-3-R-30-10 SBSG-06-1PN-1-L-30-10 SBSG-06-1PN-1-R-30-10 SBSG-06-1PN-2-L-30-10 SBSG-06-1PN-2-R-30-10
SBSG-06-1PN-3-L-30-10 SBSG-06-1PN-3-R-30-10 SBSG-10-1PN-1-L-30-10 SBSG-10-1PN-1-R-30-10 SBSG-10-1PN-2-L-30-10
SBSG-10-1PN-2-R-30-10 SBSG-10-1PN-3-L-30-10 SBSG-10-1PN-3-R-30-10