CN203081830U - Ceramic insert embedded in inner hole of diversion shell of engineering plastic well pump - Google Patents
Ceramic insert embedded in inner hole of diversion shell of engineering plastic well pump Download PDFInfo
- Publication number
- CN203081830U CN203081830U CN 201220719903 CN201220719903U CN203081830U CN 203081830 U CN203081830 U CN 203081830U CN 201220719903 CN201220719903 CN 201220719903 CN 201220719903 U CN201220719903 U CN 201220719903U CN 203081830 U CN203081830 U CN 203081830U
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- well pump
- insert
- impeller
- engineering plastic
- ceramic
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Abstract
The utility model relates to a ceramic insert embedded in an inner hole of a diversion shell of an engineering plastic well pump. The insert is formed by sintering ceramic and matched with an impeller hub of engineering plastic to form a sliding thrust bearing in order to bear axial force of an impeller. The top of the insert and the lower end of the impeller hub above the insert are combined to form a lower thrust sliding bearing in order to bear downward axial force of the impeller. The ceramic is hard in texture and can be combined with the engineering plastic to form a bearing pair with good performance so that reliability of the engineering plastic multigrade well pump is greatly improved. The ceramic bearing insert can be easily formed by sintering due to the shape of the insert and is also suitable for being integrated with the plastic diversion shell in a fixed mode. Materials and labor are saved and cost is low.
Description
Affiliated technical field
The present invention is the ceramic insert on a kind of blower inlet casing endoporus that is embedded in the engineering plastics well pump, is applicable in the engineering plastics well pump that need overcome axial force of impeller, can be embedded in plastics blower inlet casing endoporus position 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 influences 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 the 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 the 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, be paired into slide thrust bearing jointly with the impeller hub bottom of engineering plastics, bear axial force of impeller.
Technological scheme of the present invention is:
A bearing inserts is inlayed at endoporus position on the plastics blower inlet casing top of engineering plastics well pump, and this inserts adopts ceramic post sintering to be shaped, and is paired into sliding bearing jointly 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 be paired into sliding bearing jointly with the impeller hub of engineering plastics.
When the present invention was applied in the engineering plastics well pump, the impeller hub of bearing inserts and engineering plastics was paired into sliding bearing jointly, bears axial force of impeller.Time plain thrust bearing has been formed in the top and top impeller hub lower end at inserts top, bears the downward axial force of impeller.And the very suitable thermal sintering of the shape of this ceramic insert, also very suitable and firm the combining as a whole of plastics blower inlet casing, 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 the 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 (with two stage pump is 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, make bearing inserts and firm the combining as a whole of plastics blower inlet casing, 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 constitute good friction pair with the 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, also very suitable and plastics blower inlet casing 3 firm combining as a whole, not only material-saving but also saving of labor.
Claims (2)
1. ceramic insert that is embedded on the engineering plastics well pump blower inlet casing endoporus, this inserts adopts ceramic post sintering to be shaped, be paired into sliding bearing jointly 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 ceramic insert that is embedded on the engineering plastics well pump blower inlet casing endoporus as claimed in claim 1, the circle diameter of its 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719903 CN203081830U (en) | 2012-12-08 | 2012-12-08 | Ceramic insert embedded in inner hole of diversion shell of engineering plastic well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719903 CN203081830U (en) | 2012-12-08 | 2012-12-08 | Ceramic insert embedded in inner hole of diversion shell of engineering plastic well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081830U true CN203081830U (en) | 2013-07-24 |
Family
ID=48827671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719903 Expired - Fee Related CN203081830U (en) | 2012-12-08 | 2012-12-08 | Ceramic insert embedded in inner hole of diversion shell of engineering plastic well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081830U (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 201220719903 patent/CN203081830U/en not_active Expired - Fee Related
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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20131208 |