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1. CN206206257 - Electronic pump impeller subassembly

Office China
Application Number 202016001256373
Application Date 16.11.2016
Publication Number 206206257
Publication Date 31.05.2017
Publication Kind U
IPC
F04D 29/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
18Rotors
20Mounting rotors on shafts
F04D 29/66
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
66Combating cavitation, whirls, noise, vibration, or the like; Balancing
F04D 29/046
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
04Shafts or bearings, or assemblies thereof
046Bearings
Applicants CHANGZHOU KAICHENG PRECISION AUTO PARTS CO., LTD.
Inventors DU YONGCHAO
WANG HAIHUA
ZHOU RONGQING
Title
(EN) Electronic pump impeller subassembly
(ZH) 电子水泵叶轮组件
Abstract
(EN)
The utility model discloses an electronic pump impeller subassembly, install impeller and the rotor subassembly that constitutes by impeller blade and impeller cover including back shaft, rotation on the back shaft, the rotor subassembly include rotor core and the magnet steel that sets up around the rotor core periphery, the rotor core suit in impeller cover periphery, in the downthehole a pair of carborundum bearing of moulding plastics and making, the back shaft and carborundum bearing bore normal running fit of apart being equipped with of impeller cover. The utility model discloses an adopt the mode of moulding plastics on impeller cover hole, set up a pair of installation carborundum bearing, utilize the high accuracy size that has of moulding plastics to control the clearance between carborundum bearing bore and the back shaft, effectively avoided the direct friction of production between impeller cover hole and the back shaft, reduce operating noise, the life -span of having improved water pump operation's stationarity and electronic pump.

(ZH)
本实用新型公开了一种电子水泵叶轮组件,包括支撑轴、转动安装在支撑轴上由叶轮片和叶轮套构成的叶轮以及转子组件,所述的转子组件包括转子铁芯和围绕转子铁芯外周设置的磁钢,转子铁芯套装在叶轮套外周上,所述的叶轮套的内孔内相距设有一对注塑制成的碳化硅轴承,支撑轴与碳化硅轴承内孔转动配合。本实用新型通过在叶轮套内孔上采用注塑方式,设置一对安装碳化硅轴承,利用注塑具有的高精度尺寸来控制碳化硅轴承内孔与支撑轴之间的间隙,有效避免了叶轮套内孔与支撑轴之间产生的直接摩擦,降低运行噪音,提高了水泵运行的平稳性和电子水泵的寿命。