FUOU油泵,泵头SVPF-12/20/30/40-20/35/55/70-20 变量叶片泵

1/2HP 0.37KW,1/4HP0.19KW,10HP 7.5KW,15HP 11KW,1HP 0.75KW,1HP 0.75KW,20HP 15KW,2HP 1.5KW,2HP 1.5KW4P,2HP0.37KW,3HP 2.25KW,3HP2.25KW,5HP 3.75KW,5HP3.75KW,7.5HP 5.5KW,7.5HP 5.6KW
D4-02-2B2,D4-02-2D2,D4-02-3C2,D4-02-3C4,D4-02-3C60,D4-03-2B2,D4-03-2D2,D4-03-3C2,D4-03-3C4,D4-03-3C60,D4-04-2B2,D4-04-2B-AC,D4-04-2B-DC,D4-04-2D2,D4-04-3C2,D4-04-3C3,D4-04-3C4,D4-04-3C60,D4-04-3C-AC,D4-04-3C-DC,D4-06-2B2,D4-06-2B-AC,D4-06-2B-DC,D4-06-2D2,D4-06-3C2,D4-06-3C3,D4-06-3C4,D4-06-3C60,D4-06-3C-AC,D4-06-3C-DC,D4-10-2B2,D4-10-2B-AC,D4-10-2B-DC,D4-10-2D2.,D4-10-3C2,D4-10-3C3,D4-10-3C4,D4-10-3C60,D4-10-3C-AC,D4-10-3C-DC,D5-02-2B2,D5-02-2D2,D5-02-3C2,D5-02-3C4,D5-02-3C60,D5-03-2B2,D5-03-2D2,D5-03-3C2,D5-03-3C4,D5-03-3C60,D5-04-2B2,D5-04-2B-AC,D5-04-2B-DC,D5-04-3C2,D5-04-3C4,D5-04-3C60,D5-04-3C-AC,D5-04-3C-DC,D5-06-2B2,D5-06-2B-AC,D5-06-2B-DC,D5-06-3C2,D5-06-3C4,D5-06-3C60,D5-06-3C-AC,D5-06-3C-DC,D5-10-2B2,D5-10-2B-AC,D5-10-2B-DC,D5-10-3C2,D5-10-3C4,D5-10-3C60,D5-10-3C-AC,D5-10-3C-DC,DSG-01-2B2,DSG-01-2D2,DSG-01-3C2,DSG-01-3C4,DSG-01-3C60,DSG-03-2B2,DSG-03-3C2,DSG-03-3C4,DSG-03-3C60
EBG-03-C ,EBG-03-H ,EBG-06-C ,EBG-06-H
EDG-01-A45,EDG-01-A70,EDG-01-C,EDG-01-H
EFBG-03-125-C,EFBG-03-125-H,EFBG-03-160-C,EFBG-03-160-H,EFBG-03-320-H ,EFBG-03-60-C,EFBG-03-60-H,EFBG-06-250-C ,EFBG-06-250-H ,EFBG-06-320-C ,EFBG-10-500-C ,EFBG-10-500-H
P08-A0-F-R-01,P08-A1-F-R-01,P08-A2-F-R-01,P08-A3-F-R-01,P08-B0-F-R-01,P08-B1-F-R-01,P08-B2-F-R-01,P08-B3-F-R-01,P08-C0-F-R-01,P08-C1-F-R-01,P08-C2-F-R-01,P08-C3-F-R-01,P08-D0-F-R-01,P08-D1-F-R-01,P08-D2-F-R-01,P08-D3-F-R-01,P08-E0-F-R-01,P08-E1-F-R-01,P08-E2-F-R-01,P08-E3-F-R-01,P08-HL0-F-R-01,P08-HL1-F-R-01,P08-HL2-F-R-01,P08-HL3-F-R-01
P100-A1-F-R-01,P100-A3-F-R-01,P100-A4-F-R-01,P100-B1-F-R-01,P100-B3-F-R-01,P100-B4-F-R-01,P100-C1-F-R-01,P100-C3-F-R-01,P100-C4-F-R-01,P100-D1-F-R-01,P100-D3-F-R-01,P100-D4-F-R-01,P100-E1-F-R-01,P100-E3-F-R-01,P100-E4-F-R-01,P100-HL1-F-R-01,P100-HL3-F-R-01,P100-HL4-F-R-01
P16-A0-F-R-01,P16-A1-F-R-01,P16-A2-F-R-01,P16-A3-F-R-01,P16-B0-F-R-01,P16-B1-F-R-01,P16-B2-F-R-01,P16-B3-F-R-01,P16-C0-F-R-01,P16-C1-F-R-01,P16-C2-F-R-01,P16-C3-F-R-01,P16-D0-F-R-01,P16-D1-F-R-01,P16-D2-F-R-01,P16-D3-F-R-01,P16-E0-F-R-01,P16-E1-F-R-01,P16-E2-F-R-01,P16-E3-F-R-01,P16-HL0-F-R-01,P16-HL1-F-R-01,P16-HL2-F-R-01,P16-HL3-F-R-01
P22-A0-F-R-01,P22-A1-F-R-01,P22-A2-F-R-01,P22-A3-F-R-01,P22-B0-F-R-01,P22-B1-F-R-01,P22-B2-F-R-01,P22-B3-F-R-01,P22-C0-F-R-01,P22-C1-F-R-01,P22-C2-F-R-01,P22-C3-F-R-01,P22-D0-F-R-01,P22-D1-F-R-01,P22-D2-F-R-01,P22-D3-F-R-01,P22-E0-F-R-01,P22-E1-F-R-01,P22-E2-F-R-01,P22-E3-F-R-01,P22-HL0-F-R-01,P22-HL1-F-R-01,P22-HL2-F-R-01,P22-HL3-F-R-01
P36-A0-F-R-01,P36-A1-F-R-01,P36-A2-F-R-01,P36-A3-F-R-01,P36-B0-F-R-01,P36-B1-F-R-01,P36-B2-F-R-01,P36-B3-F-R-01,P36-C0-F-R-01,P36-C1-F-R-01,P36-C21-F-R-01,P36-C3-F-R-01,P36-D0-F-R-01,P36-D1-F-R-01,P36-D21-F-R-01,P36-D3-F-R-01,P36-E0-F-R-01,P36-E1-F-R-01,P36-E21-F-R-01,P36-E3-F-R-01,P36-HL0-F-R-01,P36-HL1-F-R-01,P36-HL21-F-R-01,P36-HL3-F-R-01
P46-A0-F-R-01,P46-A1--F-R-01,P46-A2-F-R-01,P46-A3-F-R-01,P46-B0-F-R-01,P46-B1--F-R-01,P46-B2-F-R-01,P46-B3-F-R-01,P46-C0-F-R-01,P46-C1--F-R-01,P46-C2-F-R-01,P46-C3-F-R-01,P46-D0-F-R-01,P46-D1--F-R-01,P46-D2-F-R-01,P46-D3-F-R-01,P46-E0-F-R-01,P46-E1--F-R-01,P46-E2-F-R-01,P46-E3-F-R-01,P46-HL0-F-R-01,P46-HL1--F-R-01,P46-HL2-F-R-01,P46-HL3-F-R-01
P70-A1-F-R-01,P70-A3-F-R-01,P70-A4-F-R-01,P70-B1-F-R-01,P70-B3-F-R-01,P70-B4-F-R-01,P70-C1-F-R-01,P70-C3-F-R-01,P70-C4-F-R-01,P70-D1-F-R-01,P70-D3-F-R-01,P70-D4-F-R-01,P70-E1-F-R-01,P70-E3-F-R-01,P70-E4-F-R-01,P70-HL1-F-R-01,P70-HL3-F-R-01,P70-HL4-F-R-01
PP100-A1-F-R-2A+P08-A1-S,PP100-A1-F-R-2A+P16-A1-S,PP100-A1-F-R-2A+P22-A1-S,PP100-A1-F-R-2B+P36-A1-S,PP100-A1-F-R-2B+P46-A1-S,PP100-A2-F-R-2A+P08-A2-S,PP100-A2-F-R-2A+P16-A2-S,PP100-A2-F-R-2A+P22-A2-S,PP100-A2-F-R-2B+P36-A2-S,PP100-A2-F-R-2B+P46-A2-S,PP100-A3-F-R-2A+P08-A3-S,PP100-A3-F-R-2A+P16-A3-S,PP100-A3-F-R-2A+P22-A3-S,PP100-A3-F-R-2B+P36-A3-S,PP100-A3-F-R-2B+P46-A3-S
PP16-A1-F-R-2A+P08-A1-S,PP16-A1-F-R-2A+P16-A1-S,PP16-A2-F-R-2A+P08-A2-S,PP16-A2-F-R-2A+P16-A2-S,PP16-A3-F-R-2A+P08-A3-S,PP16-A3-F-R-2A+P16-A3-S
PP22-A1-F-R-2A+P08-A1-S,PP22-A1-F-R-2A+P16-A1-S,PP22-A1-F-R-2A+P22-A1-S,PP22-A2-F-R-2A+P08-A2-S,PP22-A2-F-R-2A+P16-A2-S,PP22-A2-F-R-2A+P22-A2-S,PP22-A3-F-R-2A+P08-A3-S,PP22-A3-F-R-2A+P16-A3-S,PP22-A3-F-R-2A+P22-A3-S
PP36-A1-F-R-2A+P16-A1-S,PP36-A1-F-R-2A+P22-A1-S,PP36-A2-F-R-2A+P16-A2-S,PP36-A2-F-R-2A+P22-A2-S,PP36-A3-F-R-2A+P16-A3-S,PP36-A3-F-R-2A+P22-A3-S
PP46-A1-F-R-2A+P16-A1-S,PP46-A1-F-R-2A+P22-A1-S,PP46-A2-F-R-2A+P16-A2-S,PP46-A2-F-R-2A+P22-A2-S,PP46-A3-F-R-2A+P16-A3-S,PP46-A3-F-R-2A+P22-A3-S
PP70-A1-F-R-2A+P08-A1-S,PP70-A1-F-R-2A+P16-A1-S,PP70-A1-F-R-2A+P22-A1-S,PP70-A1-F-R-2B+P36-A1-S,PP70-A1-F-R-2B+P46-A1-S,PP70-A2-F-R-2A+P08-A2-S,PP70-A2-F-R-2A+P16-A2-S,PP70-A2-F-R-2A+P22-A2-S,PP70-A2-F-R-2B+P36-A2-S,PP70-A2-F-R-2B+P46-A2-S,PP70-A3-F-R-2A+P08-A3-S,PP70-A3-F-R-2A+P16-A3-S,PP70-A3-F-R-2A+P22-A3-S,PP70-A3-F-R-2B+P36-A3-S,PP70-A3-F-R-2B+P46-A3-S
VP-08F-A1,VP-08-FA1,VP-08F-A2,VP-08-FA2,VP-08F-A3,VP-08-FA3,VP-08L-A1,VP-08L-A2,VP-08L-A3
VP-12F-A1,VP-12-FA1,VP-12F-A2,VP-12F-A3,VP-12L-A1,VP-12L-A2,VP-12L-A3
VP-15F-A1,VP-15-FA1,VP-15F-A2,VP-15F-A3,VP-15L-A1,VP-15L-A2,VP-15L-A3
VP-20-FA,VP-20F-A1,VP-20F-A2,VP-20-FA2,VP-20F-A3,VP-20L-A1,VP-20L-A2,VP-20L-A3
VP-24F-A1,VP-24F-A2,VP-24F-A3,VP-24L-A1,VP-24L-A2,VP-24L-A3
VP-25F-A1,VP-25F-A2,VP-25F-A3,VP-25L-A1,VP-25L-A2,VP-25L-A3
VP-26F-A1,VP-26F-A2,VP-26F-A3,VP-26L-A1,VP-26L-A2,VP-26L-A3
VP-30F-A1,VP-30-FA1,VP-30F-A2,VP-30F-A3,VP-30-FA3,VP-30L-A1,VP-30L-A2,VP-30L-A3
VP-40F-A1,VP-40-FA1,VP-40F-A3,VP-40L-A1,VP-40L-A2,VP-40L-A3
VP-45F-A1,VP-45F-A2,VP-45F-A3,VP-45L-A1,VP-45L-A2,VP-45L-A3,,
液压油缸速度、顺序控制问题分析

液压油缸速度和顺序同时控制的问题。
(1)顺序阀的控制方式问题
同时进行速度和顺序控制的回路,顺序阀的控制方式应慎重考虑。
例如:设计要求:夹紧缸1把工件5夹紧后,进给缸2才能动作,并且要求缸1速度能够调节。图7-46(a)要通过节流阀对缸l进行速度控制,压力阀4必然是溢流阀(常开压力阀),则回路一定是一恒压回路,其压力Pi是由阀4调定的。这样,顺序阀3的开启压力p2只能是p2≤pl,于是缸2只能先动作或和缸1-起动作(暂不考虑两缸的负载差异),达不到预想的目的。图7-46(b)的顺序阀内控方式改为外控方式,即二次(控制)压不是由一次压引出,而是由节流阀出口引出。这样当缸1在运动过程中,由于节流阀必然存在压差,二次压总小于一次压,直到缸1夹紧工件停止运动,二次压才等于一次压,缸2才开始动作,实现所要求的顺序动作。

(2)溢流阀和顺序阀调节参数不当导致顺序动作达不到要求
如图7-47所示为专用机床双缸顺序动作液压系统。由于溢流阀和顺序阀调节参数不当,导致液压缸4运动速度能达到设计值,而液压缸5的速度比预定的低。产生上述问题的原因是:由于压力阀2在不该开启时开启,将泵的流量分流了,即溢流阀3调定的开启压力值低于顺序阀通过液压泵全部流量时的最高压力值,或溢流阀3调定的开启压力值等于或略高于顺序阀开启后通过液压泵全部流量时的最高压力值, 液压缸不能全速运行或速度时大时小,因此,要将溢流阀3的压力调到比顺序阀开启后的最高压力高0. 5—0. 8MPa,系统出现的问题便可解决。

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