产品特性:液压控制 | 品牌:Rexroth/力士乐 | 型号:R902404121 A4VSO180DRG/30R-PPB |
用途:增压泵 |
R902404121 A4VSO180DRG/30R-PPB13N00 力士乐柱塞泵
R902520808 A10VSO140DRS/32R-VPB22U00E 力士乐柱塞泵
柱塞和柱塞套是一对精密偶件,经配对研磨后不能互换,要求有高的精度和光洁度和好的耐磨性,其径向间隙为0.002~0.003mm
柱塞头部圆柱面上切有斜槽,并通过径向孔、轴向孔与顶部相通,其目的是改变循环供油量;柱塞套上制有进、回油孔,均与泵上体内低压油腔相通,柱塞套装入泵上体后,应用定位螺钉定位。
柱塞头部斜槽的位置不同,改变供油量的方法也不同。
出油阀和出油阀座也是一对精密偶件,配对研磨后不能互换,其配合间隙为0.01mm 。
出油阀是一个单向阀,在弹簧压力作用下,阀上部圆锥面与阀座严密配合,其作用是在停供时,将高压油管与柱塞上端空腔隔绝,防止高压油管内的油倒流入喷油泵内。
出油阀的下部呈十字断面,既能导向,又能通过柴油。出油阀的锥面下有一个小的圆柱面,称为减压环带,其作用是在供油终了时,使高压油管内的油压迅速下降,避免喷孔处产生滴油现象。当环带落入阀座内时则使上方容积很快增大,压力迅速减小,停喷迅速。
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A4VSO125DR/30R-FPB13N00
R902466667 A4VSO125DR/30R-PPB13N00
R902553758 A4VSO250DR/30R-F2PB13N00
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REXROTH力士乐液压柱塞泵规格
常用规格:40、71、125、180、250、355、500
公称压力:350 bar
峰值压力:400 bar
开路
规格40至1000
轴向柱塞斜盘结构
开式回路
1系列和3系列
轴承寿命长
控制器和主动器产品 (如下)
同规格的通轴结构,可形成组合泵
如果和在矿物油模式下(规格180至355)的性能数据相同,则可用HFC液体工作
REXROTH力士乐液压柱塞泵特点:
1)泵的流量正比于泵的转速和排量,调节它的斜盘摆角可进行排量的无级调节
2)同轴结构,可形成组合泵
3)位置约束回程结构
4)球面配流,柱塞围绕主轴倾斜布置
5)无级变量
6)优良的吸入能力
7)控制相应时间短
8) 低噪音
9)长寿命
10)优良的功率/重量比
11)模块化设计
REXROTH力士乐液压柱塞泵力士乐柱塞泵压力升不上去:
1、力士乐柱塞泵不上油或流量不足—同前述排除方法。
2、溢流阀调整压力太低或出现故障—重新调试溢流阀压力或修复溢流阀。
3、系统中有泄漏—检查系统、修补泄漏点。
4、由于力士乐柱塞泵长时间工作振动,使泵盖螺钉松动—适当拧紧螺钉
5、吸入管道漏气—检查各连接处,并予以密封、紧固。
A4VSO180DR/30R-PPB13N00
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E-A4VSO40DR/10R-VPB13N00件号升级A4VSO40DR/10R-FPB13N00
E-A4VSO71DR/10R-PPB13N00件号升级A4VSO71DR/30R-FPB13N00
E-A4VSO125DR/30R-PPB13N00件号升级A4VSO125DR/30R-FPB13N00
E-A4VSO180DR/30R-PPB13N00件号升级A4VSO180DR/30R-FPB13N00
E-A4VSO250DR/30R-PPB13N00件号升级A4VSO250DR/30R-FPB13N00
A4VSO40LR2/10R-PPB13N00
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A4VSO71LR2/10R-PPB13N00
A4VSO71LR2G/10R-PPB13N00
A4VSO125LR2/30R-PPB13N00
6、吸油不充分—同前述排除方法。
7、变量柱塞泵压力调节不当—重新调节至所需。萨奥45系列柱塞泵
REXROTH力士乐液压柱塞泵吸不上油或无压力:
1、原动机与力士乐柱塞泵旋向不一致—纠正原动机旋向。
2、力士乐柱塞泵传动键脱落—重新安装传动键。
3、进出油口接反—按说明书选用正确接法。
4、油箱内油面过低,吸入管口露出液面—补充油液至 油标线以上。
5、转速太低吸力不足—提高转速达到力士乐柱塞泵 转速以上。
6、油粘度过高,使叶片运动不灵活—选用推荐粘度的工作油。
7、油温过低,使油粘度过高—加温至推荐正常工作油温。
REXROTH力士乐液压柱塞泵特征
§ 可用的公称尺寸 ,从而可根据具体应用 调整
§ 具有高功率密度
§ 总效率非常高
§ 初始
§ 工作油口 SAE法兰或螺纹
§ 可选配集成式溢流阀
§ 其它可选配的阀门:平衡阀(BVD/BVE),冲洗阀和增压阀
§ 弯轴设计
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