CN103062124A - Reinforced ceramic insert for diversion shell of engineering plastic well pump - Google Patents
Reinforced ceramic insert for diversion shell of engineering plastic well pump Download PDFInfo
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- CN103062124A CN103062124A CN 201210594427 CN201210594427A CN103062124A CN 103062124 A CN103062124 A CN 103062124A CN 201210594427 CN201210594427 CN 201210594427 CN 201210594427 A CN201210594427 A CN 201210594427A CN 103062124 A CN103062124 A CN 103062124A
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- impeller
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- well pump
- inlet casing
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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
Affiliated technical field
The present invention is a kind of enhancement mode ceramic insert for engineering plastics well pump blower inlet casing, is applicable to need to overcome in the engineering plastics well pump of axial force of impeller, can be embedded in plastics blower inlet casing inner hole part and use as slide thrust bearing.
Background technique
As everyone knows, all there is axial force of impeller in well pump, and when the impeller of well pump and blower inlet casing all adopted engineering plastics to make, how bearing axial force of impeller became a major issue that affects the life-span.Generally speaking, axial force of impeller is born by the thrust-bearing in the necessary electromotor, when the impeller of well pump is a lot, all the axial force sum of impellers may be greatly the degree that can not bear of thrust-bearing in the necessary electromotor, thereby cause the motor damage.In the last few years, the application of floating type impeller in well pump was increasingly extensive, and floating type impeller can be transferred to pump case with axial force by end face and the wheel hub bottom end face of front shroud, thereby has reduced to be applied directly to the axial force on the pump shaft.Yet because impeller and blower inlet casing all are to adopt engineering plastics processing, well pump is in the process of work, and impeller hub bottom and blower inlet casing top one moving are quiet, and constantly friction causes the engineering plastics serious wear, has reduced reliability and the working life of pump.
Summary of the invention
In order to overcome the deficiency of existing engineering plastics well pump, the invention provides a kind of employing ceramic post sintering is shaped, be used for the ceramic insert on the engineering plastics well pump blower inlet casing, it is embedded on the plastics blower inlet casing, jointly be paired into slide thrust bearing with the impeller hub bottom of engineering plastics, bear axial force of impeller.
Technological scheme of the present invention is:
Inner hole part on the plastics blower inlet casing top of engineering plastics well pump is inlayed a bearing insert, and this inserts adopts ceramic post sintering to be shaped, and jointly is paired into sliding bearing with the impeller hub of engineering plastics, and its innovative point is:
1. the integral body of this inserts is I shape, and its top is a planar circular, and the middle part is a cylinder, and the bottom also is a planar circular, and after the injection moulding of plastics blower inlet casing, inserts top and cylinder inner wall are exposed;
2. the circle diameter of this inserts top and bottom is different, and the top is less, and slit between the two will be filled plastics after the injection moulding of plastics blower inlet casing, thereby realizes location and fastening effect;
3. the plane at this inserts top is smooth smooth, can jointly be paired into sliding bearing with the impeller hub of engineering plastics.
When the present invention was applied in the engineering plastics well pump, the impeller hub of bearing insert and engineering plastics was paired into sliding bearing jointly, bears axial force of impeller.Top and the top impeller hub lower end at inserts top has formed time plain thrust bearing, bears the downward axial force of impeller.And the very suitable thermal sintering of the shape of this ceramic insert, also very suitable and plastics blower inlet casing firmly combines as a whole, the material-saving saving of labor, and with low cost.
The invention has the beneficial effects as follows the lower higher bearing performance of cost of production realization, ceramic insert can overcome the axial force of impeller effectively, and reduces the wearing and tearing of impeller hub, increases working life and the reliability of pump.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the embodiment sketch (take two stage pump as example) of the present invention on multistage well pump;
Fig. 2 is the enlarged view of plastics blower inlet casing in the embodiment of the invention;
Fig. 3 is the enlarged view of embodiment of the invention middle (center) bearing inserts;
Among the figure: 1. the coupling of pump and auxiliary motor, 2. plastic impeller, 3. plastics blower inlet casing, 4. ceramic insert, 5. rubber pad, 6. pump shaft, 7. check valve, 8. pump housing outlet joint, 9. inserts top, 10. inserts bottom.
Embodiment
Embodiment illustrated in fig. 1 is the part of the multistage well pump all made of engineering plastics of an impeller 2 and blower inlet casing 3, in plastics blower inlet casing 3, inlayed radial-thrust bearing inserts 4, the integral body of this inserts is I shape, as shown in Figure 3, its top 9 is planar circulars, its middle part is a cylinder, and its underpart 10 is annulus more bigger than top 9, after 3 injection mouldings of plastics blower inlet casing, inserts top 9 and cylinder inner wall are exposed, as shown in Figure 2.
The gap of this inserts top 9 and inserts bottom 10 is filled plastics after the injection moulding of plastics blower inlet casing, bearing insert and plastics blower inlet casing are firmly combined as a whole, as shown in Figure 2.
In Fig. 1 embodiment, ceramic insert 4 is paired into the plain thrust bearing bearing jointly with the impeller hub of engineering plastics, bears axial force of impeller.The pottery quality is harder, can consist of good friction pair with engineering plastics and the rubber pad of fragility, has avoided the wearing and tearing of impeller hub bottom, and reliability is higher.
Ceramic insert simple shape of the present invention is economized with material, the very suitable sintering process of its shape, and also very suitable and plastics blower inlet casing 3 firmly combines as a whole not only material-saving but also saving of labor.
Claims (2)
1. enhancement mode ceramic insert that is used for engineering plastics well pump blower inlet casing, this inserts adopts ceramic post sintering to be shaped, jointly be paired into sliding bearing with the impeller hub of engineering plastics, it is characterized in that: the integral body of this inserts is I shape, its top is a planar circular, and the middle part is a cylinder, and the bottom also is a planar circular, after the injection moulding of plastics blower inlet casing, inserts top and cylinder inner wall are exposed.
2. a kind of enhancement mode ceramic insert for engineering plastics well pump blower inlet casing as claimed in claim 1, the circle diameter of its top and bottom is different, the top is less, and slit between the two will be filled plastics after the injection moulding of plastics blower inlet casing, thereby realizes location and fastening effect; The plane at this inserts top is smooth smooth, can jointly be paired into sliding bearing with the impeller hub of engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210594427 CN103062124A (en) | 2012-12-08 | 2012-12-08 | Reinforced ceramic insert for diversion shell of engineering plastic well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210594427 CN103062124A (en) | 2012-12-08 | 2012-12-08 | Reinforced ceramic insert for diversion shell of engineering plastic well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062124A true CN103062124A (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210594427 Pending CN103062124A (en) | 2012-12-08 | 2012-12-08 | Reinforced ceramic insert for diversion shell of engineering plastic well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547790A (en) * | 2018-05-28 | 2018-09-18 | 南京江流水泵有限公司 | A kind of ceramic thrust bearing for engineering plastics well pump |
| CN110685949A (en) * | 2019-07-27 | 2020-01-14 | 南京江流水泵有限公司 | Ceramic thrust bearing for engineering plastic well pump |
-
2012
- 2012-12-08 CN CN 201210594427 patent/CN103062124A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547790A (en) * | 2018-05-28 | 2018-09-18 | 南京江流水泵有限公司 | A kind of ceramic thrust bearing for engineering plastics well pump |
| CN110685949A (en) * | 2019-07-27 | 2020-01-14 | 南京江流水泵有限公司 | Ceramic thrust bearing for engineering plastic well pump |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |