主营:REXROTH电磁阀,ATOS比例阀,PARKER柱塞泵,DUPLOMATIC齿轮泵,VICKERS叶片泵,BENTLY传感器,AIRTEC机械阀,AVENTICS气动阀
2025/1/20 11:47:21来源:13524125780手机微信点击数:141次
R901088622 PR4-3X/3.15-700RA01M08力士乐叶片泵 PR4径向叶片泵 原装供应
我公司现货供应博世力士乐(BOSCH-REXROTH)、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO,美国ASCO,美国PARKER派克 等系列进口产品
R901088622 PR4-3X/3.15-700RA01M08力士乐叶片泵
博世力士乐 液压泵 柱塞泵 定量泵 Bosch Rexroth 组合泵 活塞泵 双联泵 单泵 阀门
Bosch Rexroth Industrial Hydraulics
博世力士乐工业液压
Hydraulic Pumps
液压泵
Radial Piston Pumps
径向柱塞泵
Radial Piston Pumps, Fixed Displacement
径向柱塞泵,定量
PR4-3X
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挖掘机液压泵流量调整方法与压力调整方法
一、液压泵流量的调整
1、主泵流量的调整
(1)神钢挖掘机200松开流量锁紧螺母;
(2)转动压力调整螺栓,直到压力符合规定为止;
(3)当系统压力在14700一17700kPa范围内时,顺时针转动流量调整螺栓1/4圈,流量增加约18L/min,此时较好级弹簧起作用。当系统压力在23500一34300kPa范闹内时,顺时针转动流量调整螺检1/4圈,流量增加约7L/min,此时第二级弹簧起作用;
(4)若逆时针转动流量调整螺栓,则流量减少相应的数镇;
(5)拧紧流量锁紧螺母,拧紧力矩为(12加或减3)N·m;
(6)上泵和下泵流量的调整方法相同。
2、中联205挖掘机主泵较大流量的调整
(1)松开流量锁紧螺母;
(2)拧动流量调整螺栓,直到流量达到较大值为止。顺时针转动流量调整螺栓1/49,流量约减少13L/min。逆时针转动流量调整螺栓1/4圈,流量约增加13L/min;
(3)拧紧流量锁紧螺母,拧紧力矩为10N·m。
3、反流量的调整
(1)松开流量锁紧螺母口;
(2)拧动流量调整螺栓,直到流量达到较大镇为止。顺时针转动流量调整螺栓1/4W.在系统压力为2500kPa时,流量约减少41./-n:逆nJ针转动流量调整螺栓1/4圈,流量约增加4L/min;
(3)拧紧流量锁紧螺母,拧紧力矩为(12加或减3)N·m。
二、液压泵压力的调整
系统压力检测(二次溢流阀设定压力)
1、关闭挖掘机的发动机,放掉油箱内的空气,关闭高、低压截止阀,然后拆卸高压端 H1A 软管(小臂上截止阀钢管 P1A 与连接的软管)。注意:准备盛液压油的容器和做好防尘工作!
2、确认管路上的管接头大小,然后将测压表和管接头连接好。在高压截止阀钢管前端接头处接上测压表具(表面较大量程大于 25MPa)。打开高压端截止阀(再次确认低压截至阀处于关闭状态)。启动挖掘机,并打****阀,踩下脚踏阀,即可测出系统压力值。如测量压力值达不到标准,应该及时调整。
3、重新调整二次溢流阀的设定压力(手柄顺时针旋转为加大溢流压力),使其压力达到标准值,然后紧固溢流阀上的锁紧螺母,以防止螺母松动造成设置压力的变化。
4、测试和设置压力完毕后,关闭挖掘机的发动机,放掉油箱内的空气。将高压端截止阀关闭,拆下测压表具,将和挖机用 H1A 软管连接,形成闭环。打开高、低压端的截止阀并将截至阀锁紧,进入工作状态。
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