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柱塞泵*重要的部件是轴承,
如果轴承出现游隙,则不能
保证液压泵内部三对磨擦副的
正常间隙,同时也会破坏各
磨擦副的静液压支承油膜厚度,
降低柱塞泵轴承的使用寿命。
据液压泵制造厂提供的资料,
轴承的平均使用寿命为10000h,
过此值就需要更换新口。
拆卸下来的轴承,没有*
检测仪器是无法检测出轴承的
游隙的,只能采用目测,
如发现滚柱表面有划痕或变色,
就必须更换
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A4VSO71DR/10X-PPB13N00


叶片泵的工作原理及结构一、双叶片泵的工作原理
1、定子(内腔型线):
1)两段长半径圆弧
2)两段短半径圆弧
3)四段过渡曲线
2、转子:
有若干叶槽,内有叶片。旋转时,叶片受离心力及液压力作用下,外顶定子内壁,并在槽内往复滑动。
3、配油盘:
在定子和转子两侧,盘上有两对吸、排口,在定子、转子、叶片和配油盘之间形成若干个工作空间。
叶片由短转向长半径时,叶片间v增大,p降低,经配油盘吸油。叶片由长向短半径时,叶片间v减小,经配油盘的排出口排油。当叶片位于密封区时,正好将吸、排口隔开,叶片间v不变,没有困油问题。转子转一周,每工作v都吸、排两次(双作用泵)。
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