Reinforced ceramic insert for diversion shell of engineering plastic well pump
A technology of engineering plastics and diversion shells, which is applied to components, pump elements, pumps, etc. of pumping devices for elastic fluids, can solve problems such as reducing pump reliability and service life, and wear and tear of engineering plastics, so as to increase the use of Effect of life and reliability, overcoming axial force, high bearing performance
Inactive Publication Date: 2013-04-24
JIANGSU UNIV +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since the impeller and the guide shell are made of engineering plastics, the bottom of the impeller hub and the top of the guide shell will move and rub against each other during the operation of the well pump, which will cause serious wear of the engineering plastics and reduce the reliability and reliability of the pump. service life
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] figure 1 The illustrated embodiment is a part of a multistage well pump in which both the impeller 2 and the diversion casing 3 are made of engineering plastics. In the plastic diversion casing 3, a radial thrust bearing insert 4 is inlaid, and the whole of the insert I-shaped, such as image 3 As shown, its top 9 is a plane ring, its middle part is a cylinder, and its lower part 10 is a ring slightly larger than the top 9. After the injection molding of the plastic guide shell 3, the insert top 9 and the inner wall of the cylinder are exposed, such as figure 2 shown.
[0017] The gap between the top 9 of the insert and the bottom 10 of the insert is filled with plastic after the injection molding of the plastic flow guide shell, so that the bearing insert and the plastic flow guide shell are firmly connected as a whole, such as figure 2 shown.
[0018] exist figure 1 In the embodiment, the ceramic insert 4 is paired with the engineering plastic impeller hub to f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a reinforced ceramic insert for a diversion shell of an engineering plastic well pump. The reinforced ceramic insert is formed by sintering ceramic and jointly paired with an engineering plastic impeller hub to form a sliding thrust bearing to bear axial force of an impeller. The upper surface of the top of the insert and the lower end of the impeller hub form a lower thrust sliding bearing to bear downward axial force of the impeller. As the ceramic is hard in texture, the ceramic and the engineering plastics can be combined to form a bearing pair good in performance, and reliability of multi-stage engineering plastic well pumps is greatly improved. The ceramic bearing insert is quite suitable for sintering and forming and quite suitable for connecting with the plastic diversion shell firmly, materials and labor are saved and cost is low.
Description
Technical field [0001] The invention is a reinforced ceramic insert for the diversion casing of an engineering plastic well pump, which is suitable for engineering plastic well pumps that need to overcome the axial force of the impeller, and can be embedded in the inner hole of the plastic diversion casing as a sliding thrust bearing use. Background technique [0002] As we all know, there is an axial force of the impeller in the well pump. When the impeller and the guide casing of the well pump are made of engineering plastics, how to bear the axial force of the impeller becomes an important issue that affects the service life. Under normal circumstances, the axial force of the impeller is borne by the thrust bearing in the supporting motor. When there are many impellers in the well pump, the sum of the axial forces of all the impellers may be too large to be borne by the thrust bearing in the supporting motor, resulting in The motor is damaged. In recent years, floating ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F04D29/42
Inventor 陈贤元周岭刘伟李振同陆伟刚张启华徐燕
Owner JIANGSU UNIV