CN202280646U - Pump shaft - Google Patents
Pump shaft Download PDFInfo
- Publication number
- CN202280646U CN202280646U CN2011204305922U CN201120430592U CN202280646U CN 202280646 U CN202280646 U CN 202280646U CN 2011204305922 U CN2011204305922 U CN 2011204305922U CN 201120430592 U CN201120430592 U CN 201120430592U CN 202280646 U CN202280646 U CN 202280646U
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- impeller
- utility
- model
- cylinder
- Prior art date
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a pump shaft and belongs to a pump structure. The existing pump shaft has a complex structure and is difficult to process, and a cutting tool is severely worn. The pump shaft disclosed by the utility model is characterized in that the matched part of the pump shaft and an impeller shaft hole is a polygon cylinder; and especially the polygon cylinder is defined by three spaced cylindrical surfaces which are connected by use of arc surfaces; further, the cylindrical surfaces are planes or curved surfaces; and the arc surfaces are arranged on the same cylindrical surface. The polygon cylinder body at a pump shaft impeller mounting part can be subjected to cutting or cutting-free processing, so that the time and labour can be saved during processing, the manufacturing cost is low, the structure is simple, and the processing is convenient; and the stress is uniform during transmission.
Description
Technical field
The utility model relates to pump structure, especially a kind of pump shaft.
Background technique
Existing pump shaft mainly is that splined shaft connects with the connecting mode of impeller, owing to be uniformly distributed with protruding spline on the pump shaft, complex structure, processing difficulties, tool wear is severe.
The model utility content
The technical problem that the utility model will solve and the technical assignment of proposition are that to overcome existing pump axle construction complicated, processing difficulties, and the defective that tool wear is severe provides a kind of simple in structure, easy processing, stressed uniform pump shaft during the little and transmission of tool wear.
For achieving the above object, the pump shaft of the utility model is characterized in that: itself and impeller axis hole cooperation place are the polygonal cylinders.
As the optimization technique measure, described polygonal cylinder is by surrounding with the cylinder connection of arc surface with at least three intervals.Further, described cylinder is plane or curved surface.Described arc surface is positioned on the same cylndrical surface.
The beneficial effect of the utility model is: the polygonal cylinder of pump shaft impeller installation place can or not have cutting (for example extrusion process) with cutting, and it is time saving and energy saving to process, simple in structure at the bottom of the manufacture cost, and processing is put just; Stressed even during transmission.
Description of drawings
Fig. 1 is the structural representation of the utility model pump shaft.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the pump shaft of the utility model and the erection drawing of impeller.
Fig. 4 is that B with the supporting impeller of the utility model is to view.
Label declaration among the figure: cylndrical surface, 02-impeller, 21-impeller axis hole, 03-packing ring, the 04-nut at the polygonal cylinder of 01-pump shaft, 11-pump shaft, the helical thread portion of 12-pump shaft, 13-arc surface, 14-cylinder, 15-arc surface place.
Embodiment
Below in conjunction with Figure of description the utility model is further specified.
The pump shaft of the utility model, like Fig. 1, shown in 2, itself and impeller axis hole 21 cooperation places are polygonal cylinders 11, the right-hand member of pump shaft 01 is established helical thread portion 12.Concrete, polygonal cylinder 11 is by surrounding with cylinder 14 connections of arc surface 13 with at least three intervals; Further, cylinder 14 is plane or curved surface, and arc surface 13 is positioned on the same cylndrical surface 15.
Working principle: pump shaft 01 all is the polygonal cylinder with impeller 02 mating part, and the arc surface 13 of pump shaft 01 is used for the location, axle center, and cylinder 14 is used for transmitting torque.
The consistent impeller axis hole 21 of sectional shape and polygonal cylinder 11 is arranged on the impeller 02 as shown in Figure 4; Fig. 3 is installed in the schematic representation on the pump shaft 01 with impeller 02; Pack into successively impeller 02, packing ring 03 are connected with nut 04 on the helical thread portion 12 of pump shaft packing ring 03, impeller 02 are compressed and get final product.
Claims (4)
1. pump shaft, it is characterized in that: itself and impeller axis hole (21) cooperation place are polygonal cylinder (11).
2. pump shaft according to claim 1 is characterized in that: described polygonal cylinder (11) is by surrounding with cylinder (14) connection of arc surface (13) with at least three intervals.
3. pump shaft according to claim 2 is characterized in that: described cylinder (14) is plane or curved surface.
4. pump shaft according to claim 2 is characterized in that: described arc surface (13) is positioned on the same cylndrical surface (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204305922U CN202280646U (en) | 2011-11-03 | 2011-11-03 | Pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204305922U CN202280646U (en) | 2011-11-03 | 2011-11-03 | Pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280646U true CN202280646U (en) | 2012-06-20 |
Family
ID=46226816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204305922U Expired - Fee Related CN202280646U (en) | 2011-11-03 | 2011-11-03 | Pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832451A (en) * | 2015-05-28 | 2015-08-12 | 浙江南元泵业有限公司 | Water pump shaft structure |
| CN111120338A (en) * | 2019-12-17 | 2020-05-08 | 王以忠 | Centrifugal pump system |
-
2011
- 2011-11-03 CN CN2011204305922U patent/CN202280646U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832451A (en) * | 2015-05-28 | 2015-08-12 | 浙江南元泵业有限公司 | Water pump shaft structure |
| CN111120338A (en) * | 2019-12-17 | 2020-05-08 | 王以忠 | Centrifugal pump system |
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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: 20120620 Termination date: 20161103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |