空心轉(zhuǎn)子優(yōu)勢(shì)：

advantages of hollow rotor:

1.空心轉(zhuǎn)子重量減輕后,，與常規(guī)轉(zhuǎn)子的軸向扭力減弱，油田螺桿泵轉(zhuǎn)子,，啟動(dòng)扭矩降低,，減速電機(jī)選型偏小,，客戶(hù)使用成本大-低,，達(dá)到節(jié)能效果,。

1. after the weight of the hollow rotor decreases， the axial

torsion of conventional rotor will recede,， break-out torque will lower,， gear

motor type will be relatively small， as well as customers use cost will

greatly lower with effect of environmental protection&energy saving

obtained.

2.因摩擦力與重量有密切關(guān)聯(lián),，因此與同等實(shí)心轉(zhuǎn)子對(duì)比,，重量減輕后，泵在運(yùn)行過(guò)程中轉(zhuǎn)子摩擦力減弱,，使用壽命同比增大,。

2. because the force of friction is closely related to

weight， the force of friction of the rotor lowers&service life increases on

a year-on-year basis in the operation process of the pump after the weight1

decreases in comparison to the equivalent solid rotor.