HP臺(tái)灣VPVC-F30-A4-02A葉片泵油泵F12/F20-A4/A3/A2/A1液壓泵

液壓系統(tǒng)卸荷回路介紹

液壓機(jī)械的工作部件短時(shí)停止工作時(shí)，一般都讓液壓系統(tǒng)中的液壓泵空載運(yùn)轉(zhuǎn)(即讓泵輸出的油液全部在零壓或很低壓力下流回油箱)，而不是頻繁地啓閉電機(jī)。因爲(wèi)這樣做可以節(jié)省功率消耗，減少液壓系統(tǒng)的發(fā)熱，延長(zhǎng)泵和電機(jī)的使用壽命，一般功率大于3kw的 液壓系統(tǒng)都設(shè)有卸荷回路。本文給大家介紹幾種典型的卸荷回路。

1、采用三位閥的卸荷回路

采用具有中位卸荷機(jī)能的三位換向閥，可以使液壓泵卸荷。 這種方法簡(jiǎn)單、可靠。中位卸荷機(jī)能是M、H、K型。采用具有M型中位機(jī)能換向閥的卸荷回路。這種方法比較簡(jiǎn)單，閥處于中位時(shí)泵卸荷。它適用于低壓小流量的液壓系統(tǒng)；用于高壓大流量系統(tǒng)，爲(wèi)使泵在卸荷時(shí)仍能提供一定的控制油壓[(2~3)× 105Pa]，可在泵的出口處(或回油路上)增設(shè)一單向閥(或背壓閥)。 但這將使泵的卸荷壓力相應(yīng)增加。

2、采用二位二通閥的卸荷回路

采用二位二通閥的卸荷回路。這種卸荷回路，二位二通閥的規(guī)格必須與泵的額定流量相適應(yīng)。因此這種卸荷方式不適用于大流量的場(chǎng)合，且換向時(shí)會(huì)産生液壓沖擊。通常用于泵的額定流量小于63L/min液壓系統(tǒng)。

3、用先導(dǎo)式溢流閥的卸荷回路

在先導(dǎo)式溢流閥1的遙控口接一小規(guī)格的二位二通電磁閥2。其卸荷壓力的大小取決于溢流閥主閥彈簧的強(qiáng)弱，一般爲(wèi)(2~4)×105Pa。由于閥2隻須通過(guò)先導(dǎo)式溢流閥1 控制油路中的油液，故可選用較小規(guī)格的閥，并可進(jìn)行遠(yuǎn)程 控制。這種型式卸荷回路適用于流量較大的液壓系統(tǒng)。
卸荷回路還有很多，如雙聯(lián)泵供油系統(tǒng)中常用外控制序閥的卸荷回路；壓力補(bǔ)償變量泵的卸荷回路；液壓泵卸荷時(shí)系統(tǒng)仍需保持壓力的保壓卸荷回路；適應(yīng)于大流量系統(tǒng)的二通插裝閥卸荷回路；“蓄能器＋壓力繼電器＋電磁溢流閥”構(gòu)成的卸荷回路等。

葉片泵，高低壓葉片泵，定量變量葉片泵：
150T-116-FR 150T-116-F-R 150T-116FR+PV2R2-33-FR 150T-116-FR-PA 150T-116-F-R-PA 150T-116-FR-PB
150T-116S-F-R 150T-125-F-R-PA 150T-48-F-R 150T-48-FR+PA 150T-48FR+PB 150T-61-F-R 150T-61-FR+PA
150T-61-FR-PA 150T-61-FR-PB 150T-61S-F-R 150T-75-F-R 150T-75-F-R+PA 150T-75-FR-PA 150T-75-FR-PB
150T-94-F-R 150T-94-FR-PA 150T-94-FR-PB 150T-94S-F-R
50T-07-F-R 50T-07-FR-1 50T-07-FR-2 50T-12-F-R 50T-12-FR-1 50T-12-FR-2 50T-14-F-R 50T-14-FR-1 50T-14-FR-2
50T-17-F-R 50T-17-FR-1 50T-17-FR-2 50T-19-FR-1 50T-19-FR-2 50T-23-F-R 50T-23-FR-1 50T-23-FR-2 50T-26-1
50T-26-F-R 50T-26-FR+PA 50T-26-FR-1 50T-26-FR-2 50T-26-FR2+PV2R1-14-FR 50T-30-F-R 50T-36-F-R
50T-36-FR-1 50T-36-FR-2 50T-36-FR-S3 50T-36PA-FR 50T-39-F-R 50T-39-F-R+PB 50T-39-FR-1 50T-39-FR-2
50T-40-FR 50T-40-FR-1 50T-40-FR-2
MVPVC-F12-A1-03A MVPVC-F12-A2-03A MVPVC-F12-A3-02 MVPVC-F12-A3-03A MVPVC-F20-A1-03A MVPVC-F20-A2-03A
MVPVC-F20-A3-02 MVPVC-F20-A3-03A MVPVC-F30-A3-02 MVPVC-F40-A3-02
PVDF2-C55C55-15 PVDF2-D70D70-15 PVDF-370-370-15 PVS100-A1-F-R-10 PVS100-A2-F-R-10 PVS100-A3-F-R-10
PVS100-A4-F-R-10 PVS16-A1-F-R-10 PVS16-A2-F-R-10 PVS16-A3-F-R-10 PVS16-A4-F-R-10 PVS22-A1-F-R-10 PVS22-A2-F-R-10
PVS22-A3-F-R-10 PVS22-A4-F-R-10 PVS36-A1-F-R-10 PVS36-A2-F-R-10 PVS36-A3-F-R-10 PVS36-A4-F-R-10 PVS46-A1-F-R-10
PVS46-A2-F-R-10 PVS46-A3-F-R-10 PVS46-A4-F-R-10 PVS70-A1-F-R-10 PVS70-A2-F-R-10 PVS70-A3-F-R-10 PVS70-A4-F-R-10
PVS8-A1-F-R-10 PVS8-A2-F-R-10 PVS8-A3-F-R-10 PVS8-A4-F-R-10 PVVP-F12-A2 PVVP-F12-A3 PVVP-F15-A1 PVVP-F15-A2
PVVP-F15-A3 PVVP-F15-A4 PVVP-F20-A2 PVVP-F20-A3 PVVP-F20-A4 PVVP-F23-A* PVVP-F23-A4 PVVP-F26-A1 PVVP-F26-A2
PVVP-F26-A3 PVVP-F26-A4 PVVP-F30-A1 PVVP-F30-A2 PVVP-F30-A3 PVVP-F30-A4 PVVP-F40-A1 PVVP-F40-A2 PVVP-F40-A3
PVVP-F40-A4 PVVP-F8-A1
VD-F08-A1-02 VD-F08-A2-02 VD-F08-A3-02 VD-F08-A4-02 VD-F12-A1-02 VD-F12-A2-02 VD-F12-A3-02 VD-F12-A4-02
VD-F16-A1-02 VD-F16-A2-02 VD-F16-A3-02 VD-F16-A4-02
VF15-11-FRAL-01 VF15-14-FRAB-01 VF15-17-FRRL-01 VF15-19-FRAA-01 VF15-23-FRAL-02 VF15-26-FRAA-02 VF15-28-FRRA-02
VF15-31-FRAL-01
VHI-F-30-A1 VHI-F-40-A2
VHO-F-12-A1 VHO-F-15-A2 VHO-F-20-A2
VP-08 VP-12 VP12-1 VP12-2 VP12-3 VP-12-F/A1 VP-15 VP15-1 VP15-2 VP15-3 VP-15-F/A2 VP-20 VP20-1 VP20-2
VP20-3 VP-20-F/A3 VP-30 VP30-1 VP30-2 VP30-3 VP-30-F/A3 VP-30-F-A2 VP-30-F-A3 VP-40 VP40-1 VP40-2 VP40-3
VP-40-F/A3 VP-40-F-A2 VP-40-F-A3 VPD2020 VPD3030 VPD4040 VP-DF-12-D VP-DF-20-A VP-DF-20-B VP-DF-20-C
VP-DF-20-D VP-DF-30-A VP-DF-30-B VP-DF-30-C VP-DF-30-D VP-DF-40-A VP-DF-40-B VP-DF-40-C
VPKC-F15-A1-02-1 VPKC-F15-A202 VPKC-F15A202-1 VPKC-F15-A2-02-1 VPKC-F15-A3-02-1 VPKC-F15-A4-02-1
VPKC-F20-A1-02-1 VPKC-F20-A202 VPKC-F20-A2-02-1 VPKC-F20-A2-03-1 VPKC-F20-A4-02-1 VPNC-12-2-30
VPNC-17-2-30 VPNC-23-2-30 VPNC-26-2-30 VPNC-36-2-30 VPNC-7-2-30 VPNC-F12-2-30 VPNC-F17-2-30 VPNC-F23-2-30
VPNC-F26-2-30 VPNC-F36-2-30 VPNC-F7-2-30
VP-SF-12-A VP-SF-12-B VP-SF-12-C VP-SF-12-D VP-SF-12-E VP-SF-15-B VP-SF-15-D VP-SF-20-A VP-SF-20-B
VP-SF-20-C VP-SF-20-D VP-SF-20-E VP-SF-30-A VP-SF-30-B VP-SF-30-C VP-SF-30-D VP-SF-30-E VP-SF-40-A
VP-SF-40-B VP-SF-40-C VP-SF-40-D
VPVC-F12-A1-02 VPVC-F12-A2-02 VPVC-F12-A3-02 VPVC-F12-A3-02A VPVC-F12-A4-02AD VPVC-F12-A4-03AD
VPVC-F20-A1-02 VPVC-F20-A2-02 VPVC-F20-A3-02 VPVC-F20-A3-02A VPVC-F20-A4-02AD VPVC-F20-A4-03AD
VPVC-F30-A1-02 VPVC-F30-A2-02 VPVC-F30-A3-02 VPVC-F30-A4-02AD VPVC-F30-A4-03AD VPVC-F40-A1-02
VPVC-F40-A2-02 VPVC-F40-A3-02 VPVC-F40-A4-02AD VPVC-F40-A4-03AD 
液控單向閥：
CPDG-03-1-50 CPDG-03-2-50 CPDG-06-1-50 CPDG-06-2-50 CPDG-10-1-50 CPDG-10-2-50
液動(dòng)換向閥:
DP-04-2B2-1PB DP-04-3C2-2P DP-04-3C3-2P DP-04-3C4-2P DP-04-3C60-2P DP-04-3C6-2P DP-04-3C8-2P DP-06-2B2-1PB
DP-06-3C2-2P DP-06-3C3-2P DP-06-3C4-2P DP-06-3C60-2P DP-06-3C6-2P DP-06-3C8-2P DP-10-2B2-1PB DP-10-3C2-2P
DP-10-3C3-2P DP-10-3C4-2P DP-10-3C60-2P DP-10-3C6-2P DP-10-3C8-2P
電磁換向閥：
DS-G03-B20 DS-G03-B20S DS-G03-B2S DS-G03-B3S DS-G03-C2BS DS-G03-C3BS DS-G03-C40BS DS-G03-C4BS DS-G03-C5BS
DS-G03-C5S DS-G03-C60BS DS-G03-C6BS DS-G03-C7BS DS-G03-C8BS DS-G03-C8S0 DS-G03-C9BS DS-G03-C9S0
SWH-G02-3C2-D24-20 SWH-G02-3C3-D24-20 SWH-G02-3C4-D24-20 SWH-G02-3C6-D24-20 SWH-G02-B20-A110-20
SWH-G02-B2-A110-20 SWH-G02-B3-A110-20 SWH-G02-B4-A110-20 SWH-G02-C2-A220-20 SWH-G02-C2-D12-20
SWH-G02-C3-A220-20 SWH-G02-C40-A240-20 SWH-G02-C4-A220-20 SWH-G02-C5-A240-20 SWH-G02-C60-A240-20
SWH-G02-C6-A220-20 SWH-G02-C6-R120-20 SWH-G02-C7-R220-20 SWH-G02-C8-R220-20 SWH-G02-C9-R220-20
SWH-G03-B2-D12-20 SWH-G03-B3-A110-10 SWH-G03-B3-A110-20 SWH-G03-B3-D12-20 SWH-G03-B3-D24-10
SWH-G03-B3-D24-20 SWH-G03-B4-D12-20 SWH-G03-B-A220-10 SWH-G03-B-A220-20 SWH-G03-B-D12-10
SWH-G03-B-D12-20 SWH-G03-C2-R120-20 SWH-G03-C3-R120-20 SWH-G03-C4-R120-20 SWH-G03-C6-D24-20
SWH-G03-C6-R220-20
電液換向閥：
DSH-G03-B2-ET-A110-20 DSH-G03-B2-ET-A220-20 DSH-G03-B2-ET-A240-20 DSH-G03-B2-ET-D24-20 DSH-G03-B3-ET-A110-20
DSH-G03-B3-ET-A220-20 DSH-G03-B3-ET-A240-20 DSH-G03-B3-ET-D24-20 DSH-G03-B4-ET-A110-20 DSH-G03-B4-ET-A220-20
DSH-G03-B4-ET-A240-20 DSH-G03-B4-ET-D24-20 DSH-G03-C2-ET-A110-20 DSH-G03-C2-ET-A220-20 DSH-G03-C2-ET-A240-20
DSH-G03-C2-ET-D24-20 DSH-G03-C3-ET-A110-20 DSH-G03-C3-ET-A220-20 DSH-G03-C3-ET-A240-20 DSH-G03-C3-ET-D24-20
DSH-G03-C4-ET-A110-20 DSH-G03-C4-ET-A220-20 DSH-G03-C4-ET-A240-20 DSH-G03-C4-ET-D24-20 DSH-G03-C5-ET-A110-20
DSH-G03-C5-ET-A220-20 DSH-G03-C5-ET-A240-20 DSH-G03-C5-ET-D24-20 DSH-G03-C6-ET-A110-20 DSH-G03-C6-ET-A220-20
DSH-G03-C6-ET-A240-20 DSH-G03-C6-ET-D24-20 DSH-G03-C7-ET-A110-20 DSH-G03-C7-ET-A220-20 DSH-G03-C7-ET-A240-20
DSH-G03-C7-ET-D24-20 DSH-G03-C8-ET-A110-20 DSH-G03-C8-ET-A220-20 DSH-G03-C8-ET-A240-20 DSH-G03-C8-ET-D24-20
DSH-G03-C9-ET-A110-20 DSH-G03-C9-ET-A220-20 DSH-G03-C9-ET-A240-20 DSH-G03-C9-ET-D24-20 DSH-G03-D2-ET-A110-20
DSH-G03-D2-ET-A220-20 DSH-G03-D2-ET-A240-20 DSH-G03-D2-ET-D24-20
齒輪泵：
EG-PA-10R EG-PA-11R EG-PA-12R EG-PA-3R EG-PA-4R EG-PA-5R EG-PA-6R EG-PA-8R EG-PA-9R EG-PA-F10R EG-PA-F11R
EG-PA-F12R EG-PA-F1R EG-PA-F2R EG-PA-F3R EG-PA-F4R EG-PA-F5R EG-PA-F6R EG-PA-F8R EG-PA-F9R EG-PB-11
EG-PB-11-L EG-PB-11-R EG-PB-12 EG-PB-12-L EG-PB-12-R EG-PB-16 EG-PB-16-L EG-PB-16-R EG-PB-19 EG-PB-19-L
EG-PB-19-R EG-PC-19 EG-PC-19-L EG-PC-19-R EG-PC-22 EG-PC-22-L EG-PC-22-R EG-PC-25 EG-PC-25-L EG-PC-25-R
EG-PC-31 EG-PC-31-L EG-PC-31-R
ER-G01-0-L-E-10-S016 ER-G01-0-L-E-11-S016 ER-G01-0-R-E-10-S016 ER-G01-0-R-E-11-S016 ER-G01-1-L-E-10-S016
ER-G01-1-L-E-11-S016 ER-G01-1-R-E-10-S016 ER-G01-1-R-E-11-S016 ER-G01-2-L-E-10-S016 ER-G01-2-L-E-11-S016
ER-G01-2-R-E-10-S016 ER-G01-2-R-E-11-S016 ER-G01-3-L-E-10-S016 ER-G01-3-L-E-11-S016 ER-G01-3-R-E-10-S016
ER-G01-3-R-E-11-S016 ER-G03-0-L-E-10-S016 ER-G03-0-R-E-10-S016 ER-G03-1-L-E-10-S016 ER-G03-1-R-E-10-S016
ER-G03-2-L-E-10-S016 ER-G03-2-R-E-10-S016 ER-G03-3-L-E-10-S016 ER-G03-3-R-E-10-S016 ER-G06-0-L-E-10-S016
ER-G06-0-R-E-10-S016 ER-G06-1-L-E-10-S016 ER-G06-1-R-E-10-S016 ER-G06-2-L-E-10-S016 ER-G06-2-R-E-10-S016
ER-G06-3-L-E-10-S016 ER-G06-3-R-E-10-S016
GP15-2-R-D6F GP15-3-R-D6F GPY-2R GPY-3R GPY-4R GPY-5.8R GPY-7R GPY-8R GPY-9R GPYZ-2R323 GPY-Z-3R232
GPYZ-4R332 GPYZ-5.8R3233 GPYZ-8R323
K1P10R11A K1P11R11A K1P12R11A K1P1R11A K1P2R11A K1P3R11A K1P4R11A K1P5R11A K1P6R11A K1P7R11A K1P8R11A K1P9R11A
低噪音電磁溢流閥:
HSRF-G03-1NP-1-L-A240-10-30 HSRF-G03-1NP-1-L-A240-20-30 HSRF-G03-1NP-1-R-A240-10-30
HSRF-G03-1NP-1-R-A240-20-30 HSRF-G03-1NP-2-L-A240-10-30 HSRF-G03-1NP-2-L-A240-20-30
HSRF-G03-1NP-2-R-A240-10-30 HSRF-G03-1NP-2-R-A240-20-30 HSRF-G03-1NP-3-L-A240-10-30
HSRF-G03-1NP-3-L-A240-20-30 HSRF-G03-1NP-3-R-A240-10-30 HSRF-G03-1NP-3-R-A240-20-30
HSRF-G03-1PN-1-L-A240-10-30 HSRF-G03-1PN-1-L-A240-20-30 HSRF-G03-1PN-1-R-A240-10-30
HSRF-G03-1PN-1-R-A240-20-30 HSRF-G03-1PN-2-L-A240-10-30 HSRF-G03-1PN-2-L-A240-20-30
HSRF-G03-1PN-2-R-A240-10-30 HSRF-G03-1PN-2-R-A240-20-30 HSRF-G03-1PN-3-L-A240-10-30
HSRF-G03-1PN-3-L-A240-20-30 HSRF-G03-1PN-3-R-A240-10-30 HSRF-G03-1PN-3-R-A240-20-30
電磁卸荷溢流閥:
HSUR-G03-1NP-1-A220-10 HSUR-G03-1NP-1-A220-20 HSUR-G03-1NP-2-A220-10 HSUR-G03-1NP-2-A220-20
HSUR-G03-1NP-3-A220-10 HSUR-G03-1NP-3-A220-20 HSUR-G03-1PN-1-A220-10 HSUR-G03-1PN-1-A220-20
HSUR-G03-1PN-2-A220-10 HSUR-G03-1PN-2-A220-20 HSUR-G03-1PN-3-A220-10 HSUR-G03-1PN-3-A220-20
HSUR-G06-1NP-1-A220-10 HSUR-G06-1NP-1-A220-20 HSUR-G06-1NP-2-A220-10 HSUR-G06-1NP-2-A220-20
HSUR-G06-1NP-3-A220-10 HSUR-G06-1NP-3-A220-20 HSUR-G06-1PN-1-A220-10 HSUR-G06-1PN-1-A220-20
HSUR-G06-1PN-2-A220-10 HSUR-G06-1PN-2-A220-20 HSUR-G06-1PN-3-A220-10 HSUR-G06-1PN-3-A220-20
HUR-G03-1-30 HUR-G03-1-32 HUR-G03-2-30 HUR-G03-2-32 HUR-G03-3-30 HUR-G03-3-32 HUR-G06-1-30
HUR-G06-1-32 HUR-G06-2-30 HUR-G06-2-32 HUR-G06-3-30 HUR-G06-3-32
疊加式單向閥：
MC-02A-05-20 MC-02A-50-20 MC-02B-05-20 MC-02B-50-20 MC-02BP-05-20 MC-02BP-50-20 MC-02P-05-20
MC-02P-50-20 MC-02T-05-20 MC-02T-50-20 MC-02W-05-20 MC-02W-50-20 MC-04P-05-20 MC-04P-50-20
MC-06A-05-20 MC-06A-50-20 MC-06B-05-20 MC-06B-50-20 MC-06P-05-20 MC-06P-50-20 MC-06T-05-20 MC-06T-50-20
疊加式平衡閥:
MCS-02A-K-1-20 MCS-02A-K-2-20 MCS-02A-K-3-20 MCS-02B-K-1-20 MCS-02B-K-2-20 MCS-02B-K-3-20
MCS-03A-K-1-20 MCS-03A-K-2-20 MCS-03A-K-3-20 MCS-03B-K-1-20 MCS-03B-K-2-20 MCS-03B-K-3-20
MCS-04A-K-1-20 MCS-04A-K-2-20 MCS-04A-K-3-20 MCS-04B-K-1-20 MCS-04B-K-2-20 MCS-04B-K-3-20
MCS-06A-K-1-20 MCS-06A-K-2-20 MCS-06A-K-3-20 MCS-06B-K-1-20 MCS-06B-K-2-20 MCS-06B-K-3-20
疊加式液控單向閥:
MPC-02A-05-20 MPC-02A-50-20 MPC-02B-05-20 MPC-02B-50-20 MPC-02W-05-20 MPC-02W-50-20 MPC-03A-05-20
MPC-03A-50-20 MPC-03B-05-20 MPC-03B-50-20 MPC-03W-05-20 MPC-03W-50-20 MPC-04A-05-20 MPC-04A-50-20
MPC-04B-05-20 MPC-04B-50-20 MPC-04W-05-20 MPC-04W-50-20 MPC-06A-05-20 MPC-06A-50-20 MPC-06B-05-20
MPC-06B-50-20 MPC-06W-05-20 MPC-06W-50-20
疊加式順序閥:
MS-02P-K-1-20 MS-02P-K-2-20 MS-02P-K-3-20 MS-03P-K-1-20 MS-03P-K-2-20 MS-03P-K-3-20
疊加式節(jié)流閥:
MT-02P-K-20 MT-02T-K-20 MT-03P-K-20 MT-03T-K-20
疊加式單向節(jié)流閥:
MTC-02A-K-I-20 MTC-02B-K-I-20 MTC-02P-K-20 MTC-02T-K-20 MTC-02W-K-I-20 MTC-03A-K-I-20 MTC-03B-K-I-20
MTC-03P-K-20 MTC-03T-K-20 MTC-03W-K-I-20 MTC-04A-K-I-20 MTC-04B-K-I-20 MTC-04W-K-I-20 MTC-06A-K-I-20
MTC-06B-K-I-20 MTC-06W-K-I-20
壓力控制閥，溢流閥，調(diào)壓閥：
 SRF-G04-1NP-1-A240-10 SRF-G04-1NP-1-A240-20 SRF-G04-1NP-2-A240-10 SRF-G04-1NP-2-A240-20
SRF-G04-1NP-3-A240-10 SRF-G04-1NP-3-A240-20 SRF-G04-1PN-1-A240-10 SRF-G04-1PN-1-A240-20
SRF-G04-1PN-2-A240-10 SRF-G04-1PN-2-A240-20 SRF-G04-1PN-3-A240-10 SRF-G04-1PN-3-A240-20
SRF-G04-2P-1-A240-10? SRF-G04-2P-1-A240-20  SRF-G04-2P-2-A240-10? SRF-G04-2P-2-A240-20 
 SRF-G04-2P-3-A240-10 SRF-G04-2P-3-A240-20 SRF-G04-2PN-1-A240-10 SRF-G04-2PN-1-A240-20
SRF-G04-2PN-2-A240-10 SRF-G04-2PN-2-A240-20 SRF-G04-2PN-3-A240-10 SRF-G04-2PN-3-A240-20
SRF-G04-3P-1-A240-10  SRF-G04-3P-1-A240-20? SRF-G04-3P-2-A240-10? SRF-G04-3P-2-A240-20 
SRF-G04-3P-3-A240-10 SRF-G04-3P-3-A240-20