CN203023103U - Middle section of bearing - Google Patents
Middle section of bearing Download PDFInfo
- Publication number
- CN203023103U CN203023103U CN 201320055704 CN201320055704U CN203023103U CN 203023103 U CN203023103 U CN 203023103U CN 201320055704 CN201320055704 CN 201320055704 CN 201320055704 U CN201320055704 U CN 201320055704U CN 203023103 U CN203023103 U CN 203023103U
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- China
- Prior art keywords
- stage casing
- middle section
- bearing
- lower body
- face
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a middle section of a bearing for forming a water pump component assembly, and belongs to the technical field of pumps. The existing middle section of the bearing has the defects that the coaxiality among the inner diameter of the lower body of the middle section, the external diameter of the upper body of the middle section, and the inner diameter of the outer ring of a sliding bearing is difficult to ensure, thus the performance of the pump is influenced, the manufacture cost is high, and the efficiency is low. The middle section of the bearing disclosed by the utility model is formed by integrally casting and forming the lower body of the middle section and the upper body of the middle section, and axially connecting the upper body of the middle section and the lower body of the middle section in a butt welding mode, thus the coaxiality among the inner diameter of the lower body of the middle section, the external diameter of the upper body of the middle section, and the inner diameter of the outer ring of the sliding bearing is ensured, the coaxiality of the choma of an impeller and a pump shaft is fundamentally ensured, the efficiency of the pump in working is effectively improved, and the performance of the pump is improved; fast and accurate installation between the middle section of the bearing and the pump shaft is realized, the abrasion of the sliding bearing to the shaft is avoided to the greatest extent; and moreover, the middle section of the bearing is flexible to rotate and has high efficiency, thus reducing the manufacture cost and improving the production efficiency.
Description
Technical field
The utility model belongs to the pump technology, specifically consists of the bearing stage casing of pump part assembly.
Background technique
The bearing stage casing employing corrosion resistant plate impact briquetting that has into the pump part assembly now is welded into integral body again, the bearing stage casing of this structure is difficult to guarantee the coaxality between the internal diameter of external diameter, sliding bearing outer ring of internal diameter, the upper body, stage casing of stage casing lower body, affect pump performance, manufacture cost is high, at the bottom of efficient.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is the coaxality between the internal diameter of the external diameter that overcomes internal diameter that existing bearing stage casing is difficult to guarantee the stage casing lower body, upper body, stage casing, sliding bearing outer ring, affect pump performance, the defectives such as manufacture cost is high, efficient is low provide that a kind of coaxality is good, low cost of manufacture, bearing stage casing that efficient is high.
For achieving the above object, bearing of the present utility model stage casing, comprise stage casing lower body, upper body, stage casing, it is characterized in that: described stage casing lower body integral casting forming is the integrative-structure that comprises choma seat, bearing support, stator front shroud, guide vane, stator back shroud, described choma seat is formed on the upper end of described stator front shroud, described bearing support is formed on the upper end of described stator back shroud, and described guide vane is formed between described stator front shroud and stator back shroud; Upper body, described stage casing integral casting forming is cylindric; Upper body, described stage casing is axially docked and welds together with described stage casing lower body.
As the optimization technique means: assembling sliding bearing outer ring on described bearing support.Concrete, described sliding bearing outer ring close-fitting is on described bearing support.
As the optimization technique means: assemble choma on described choma seat.
As the optimization technique means: axial carrying shoulder and excircle orientation face are set on the lower body of described stage casing, axial carrying end face and inner circle locating face are set on upper body, described stage casing, described carrying end face is placed on described carrying shoulder, described inner circle locating face is enclosed within the outside fix of described excircle orientation face and realizes described docking, implements described welding at the seam crossing of described carrying end face and described carrying shoulder.Concrete, the seam crossing of described carrying end face and described carrying shoulder is established bevel for welding, implements described welding at described bevel for welding.
As the optimization technique means: the upper end of upper body, described stage casing has neck and forms the carrying step in this neck outside, the internal diameter of the external diameter of described neck and lower body lower end, described stage casing match the neck that makes upper body, described stage casing can insert another stage casing lower body under bring in and carry this another stage casing lower body.
The beneficial effects of the utility model are: by integral casting forming stage casing lower body, upper body, stage casing, and upper body, stage casing and the axial butt welding of stage casing lower body are connected together, guarantee the coaxality between the internal diameter of external diameter, sliding bearing outer ring of internal diameter, the upper body, stage casing of stage casing lower body, fundamentally guarantee the coaxality of impeller port ring and pump shaft, efficient when effectively raising pump work improves pump performance; Realized installing fast and accurately between bearing stage casing and pump shaft, avoided to greatest extent the wearing and tearing of sliding bearing to axle, and rotation is flexible, efficient is high; Reduce manufacture cost, enhance productivity.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A section enlarged view in Fig. 1;
Fig. 3 is the schematic diagram before structure docking shown in Figure 2;
Number in the figure explanation: 1-stage casing lower body, upper body, 2-stage casing, 3-sliding bearing outer ring, 4-choma seat, 5-bearing support, 6-stator front shroud, the 7-guide vane, 8-stator back shroud, 9-choma, 10-carries shoulder, 11-excircle orientation face, and 12-carries end face, 13-inner circle locating face, 14-bevel for welding, 15-neck, 16-carries step, the internal diameter of lower body 1 lower end, D1-stage casing, the external diameter of D2-neck 15.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
Bearing of the present utility model stage casing, as shown in Figure 1, it comprises stage casing lower body 1, upper body, stage casing 2, lower body 1 integral casting forming in stage casing is the integrative-structure that comprises choma seat 4, bearing support 5, stator front shroud 6, guide vane 7, stator back shroud 8, choma seat 4 is formed on the upper end of stator front shroud 6, bearing support 5 is formed on the upper end of stator back shroud 8, and guide vane 7 is formed between stator front shroud 6 and stator back shroud 8; Upper body, stage casing 2 integral casting formings are cylindric; Upper body, stage casing 2 is axially docked with stage casing lower body 1 and is welded together (referring to Fig. 2).
Further, on bearing support 5, assembling 3(sliding bearing outer ring, sliding bearing outer ring 3 can be also the lining that teflon and graphite form by other structures such as material); Sliding bearing outer ring 3 close-fittings (as passing through interference fit) are on bearing support 5.Assemble choma on choma seat 4.Referring to Fig. 3, axial carrying shoulder 10 and excircle orientation face 11 are set on stage casing lower body 1, axial carrying end face 12 and inner circle locating face 13 are set on upper body, stage casing 2, carrying end face 12 is placed on carrying shoulder 10, inner circle locating face 13 is enclosed within 11 outside fixs of excircle orientation face and achieves a butt joint, and implements welding at carrying end face 12 and the seam crossing of carrying shoulder 10; Further, carrying end face 12 is established bevel for welding 14 with the seam crossing of carrying shoulder 10, implements described welding at bevel for welding 14.The upper end of upper body, stage casing 2 has neck 15 and carries steps 16 in these neck 15 outsides formation, the inner diameter D 1 of the D outer diameter 2 of neck 15 and stage casing lower body 1 lower end match the neck that makes upper body, stage casing 2 can insert another stage casing lower body under bring in this another stage casing lower body of carrying, the dimensional fits when being convenient to different stage casings stack being installed.
Claims (7)
1. bearing stage casing, comprise stage casing lower body (1), upper body, stage casing (2), it is characterized in that: described stage casing lower body (1) integral casting forming is the integrative-structure that comprises choma seat (4), bearing support (5), stator front shroud (6), guide vane (7), stator back shroud (8), described choma seat (4) is formed on the upper end of described stator front shroud (6), described bearing support (5) is formed on the upper end of described stator back shroud (8), and described guide vane (7) is formed between described stator front shroud (6) and stator back shroud (8); Upper body, described stage casing (2) integral casting forming is cylindric; Upper body, described stage casing (2) is axially docked and welds together with described stage casing lower body (1).
2. bearing according to claim 1 stage casing is characterized in that: the upper assembling of described bearing support (5) sliding bearing outer ring (3).
3. bearing according to claim 2 stage casing, it is characterized in that: described sliding bearing outer ring (3) close-fitting is on described bearing support (5).
4. bearing according to claim 1 stage casing, is characterized in that: the upper assembling of described choma seat (4) choma (9).
5. bearing according to claim 1 stage casing, it is characterized in that: axial carrying shoulder (10) and excircle orientation face (11) are set on described stage casing lower body (1), axial carrying end face (12) and inner circle locating face (13) are set on upper body, described stage casing (2), described carrying end face (12) is placed on described carrying shoulder (10), described inner circle locating face (13) is enclosed within described excircle orientation face (11) outside fix and realizes described docking, implement described welding at described carrying end face (12) and the seam crossing of described carrying shoulder (10).
6. bearing according to claim 5 stage casing, it is characterized in that: described carrying end face (12) is established bevel for welding (14) with the seam crossing of described carrying shoulder (10), implements described welding at described bevel for welding (14).
7. bearing according to claim 1 stage casing, it is characterized in that: the upper end of upper body, described stage casing (2) has neck (15) and forms carrying step (16) in this neck (15) outside, the internal diameter (D1) of the external diameter (D2) of described neck (15) and described stage casing lower body (1) lower end match the neck (15) that makes upper body, described stage casing (2) can insert another stage casing lower body under bring in this another stage casing lower body of carrying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055704 CN203023103U (en) | 2013-01-29 | 2013-01-29 | Middle section of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055704 CN203023103U (en) | 2013-01-29 | 2013-01-29 | Middle section of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023103U true CN203023103U (en) | 2013-06-26 |
Family
ID=48647092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055704 Expired - Fee Related CN203023103U (en) | 2013-01-29 | 2013-01-29 | Middle section of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023103U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847702A (en) * | 2015-05-28 | 2015-08-19 | 浙江南元泵业有限公司 | Guide structure of guide shell structure for water pumps |
| CN106122105A (en) * | 2016-08-08 | 2016-11-16 | 浙江南元泵业有限公司 | Centrifugal pump water outlet guide vane structure and manufacture method thereof |
| CN106224285A (en) * | 2016-08-25 | 2016-12-14 | 浙江南元泵业有限公司 | Water pump core arrangement |
-
2013
- 2013-01-29 CN CN 201320055704 patent/CN203023103U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847702A (en) * | 2015-05-28 | 2015-08-19 | 浙江南元泵业有限公司 | Guide structure of guide shell structure for water pumps |
| CN106122105A (en) * | 2016-08-08 | 2016-11-16 | 浙江南元泵业有限公司 | Centrifugal pump water outlet guide vane structure and manufacture method thereof |
| CN106224285A (en) * | 2016-08-25 | 2016-12-14 | 浙江南元泵业有限公司 | Water pump core arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20190129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |