CN202520633U - Cabin dredge pump with impeller adopting dual-seam-allowance positioning structure - Google Patents
Cabin dredge pump with impeller adopting dual-seam-allowance positioning structure Download PDFInfo
- Publication number
- CN202520633U CN202520633U CN2012200829726U CN201220082972U CN202520633U CN 202520633 U CN202520633 U CN 202520633U CN 2012200829726 U CN2012200829726 U CN 2012200829726U CN 201220082972 U CN201220082972 U CN 201220082972U CN 202520633 U CN202520633 U CN 202520633U
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- CN
- China
- Prior art keywords
- pump
- impeller
- shaft
- cabin
- positioning
- 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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Abstract
The utility model relates to a cabin dredge pump with an impeller adopting a dual-seam-allowance positioning structure, in particular to a large cabin dredge pump. The cabin dredge pump comprises a bracket body, wherein a bearing assembly is fixedly installed on the bracket body and supports a pump shaft, and the front end of the bracket body is fixedly provided with a pump body; and the impeller is arranged in the pump body and is installed at the front end of the pump shaft. The cabin dredge pump is characterized in that the shaft head of the pump shaft is provided with a holding thread; the front end of the holding thread is provided with a shaft-positioning seam allowance 1, and the rear end of the holding thread is provided with a shaft-positioning seam allowance 2; a holding thread hole matched with the holding thread is formed in a hub mounting hole of the impeller, and the front end of the holding thread hole is provided with a positioning seam allowance 1 matched with the shaft-positioning seam allowance 1; and the rear end of the holding thread hole is provided with a positioning seam allowance 2 matched with the shaft-positioning seam allowance 2. A hub of the impeller is matched with the shaft head of the pump shaft in a dual-seam-allowance positioning mode, so that the accurate positioning is realized. The structure profitably changes the condition that the position of the impeller of the dredge pump in the pump body is out of true, and meanwhile, the stress of the shaft head is better.
Description
Technical field
The utility model relates to dredging pump in the cabin that a kind of impeller adopts the double stopper position structure, dredging pump in particularly a kind of large-scale cabin.
Background technique
Dredging pump advanced technology in the large-scale cabin, performance requirement is high, complex structure, the installation precision and the requirement of strength of dredging pump pallet body and pump case are higher; Installing and locating required precision to the dredging pump impeller is high.
The model utility content
The utility model technical issues that need to address provide dredging pump in the cabin that a kind of impeller adopts the double stopper position structure, through its design rational in infrastructure, and the installation precision of assurance impeller.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is: the utility model comprises pallet body, fixedly mounts bearing unit on the pallet body; Bearing unit supports pump shaft, and the pallet body front end is the pump housing fixedly, and impeller is set in the pump housing; Impeller is installed in the pump shaft front end; The spindle nose of said pump shaft is provided with binding thread, and the binding thread front end is provided with a positioning spigot one, and the binding thread rear end is provided with a positioning spigot two; The fastening screw pit that the hub installing hole setting of said impeller cooperates with binding thread, fastening screw pit front end are provided with the positioning spigot one that cooperates with axle positioning spigot one, Gu the tapped hole rear end is provided with the positioning spigot two that cooperates with axle positioning spigot two.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The spindle nose double stopper location of the wheel hub of the impeller of the utility model and pump shaft cooperates, realizes accurately location, this structure promising change the dredging pump impeller be the situation of malposition at the pump housing, also make spindle nose simultaneously stressed better.
Description of drawings
Fig. 1 is that a kind of impeller adopts dredging pump structural representation in the cabin of double stopper position structure;
Fig. 2 is the A enlarged view of impeller among Fig. 1;
Fig. 3 is the A enlarged view of pump shaft among Fig. 1.
Wherein: 1, bearing unit, 2, pallet body, 6, the pump housing, 8, the fastening screw pit, 9, positioning spigot two, 10, positioning spigot one, 11, impeller, 12, pump shaft, 14, axle positioning spigot two, 15, binding thread, 16, axle positioning spigot one.
Embodiment
Below in conjunction with accompanying drawing the utility model is explained further details:
Fig. 1,2 or shown in Figure 3, the utility model comprises pallet body 2, fixed installation bearing unit 1 on the pallet body 2, bearing unit 1 supports pump shaft 12, and pallet body 2 front ends are the pump housing 6 fixedly, and impeller 11 is set in the pump housing 6, and impeller 11 is installed in pump shaft 12 front ends;
The spindle nose of said pump shaft 12 is provided with binding thread 15, and binding thread 15 front ends are provided with the less axle positioning spigot 1 of diameter, and binding thread 15 rear ends are provided with the bigger axle positioning spigot 2 14 of diameter;
The fastening screw pit 8 that the hub installing hole setting of said impeller cooperates with binding thread 15; The positioning spigot 1 that the 8 front end settings of fastening screw pit cooperate with axle positioning spigot 1, fastening screw pit 8 rear ends are provided with the positioning spigot 29 that cooperates with axle positioning spigot 2 14;
The spindle nose of the wheel hub of impeller 11 and pump shaft 12 forms the double stopper location and cooperates, realizes accurately location, this structure promising change the dredging pump impeller be the situation of malposition at the pump housing, also make spindle nose simultaneously stressed better.
Claims (1)
1. dredging pump in the cabin of an impeller employing double stopper position structure comprises pallet body, fixedly mounts bearing unit on the pallet body; Bearing unit supports pump shaft, and the pallet body front end is the pump housing fixedly, and impeller is set in the pump housing; Impeller is installed in the pump shaft front end; It is characterized in that: the spindle nose of said pump shaft is provided with binding thread, and the binding thread front end is provided with a positioning spigot one, and the binding thread rear end is provided with a positioning spigot two; The fastening screw pit that the hub installing hole setting of said impeller cooperates with binding thread, fastening screw pit front end are provided with the positioning spigot one that cooperates with axle positioning spigot one, Gu the tapped hole rear end is provided with the positioning spigot two that cooperates with axle positioning spigot two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200829726U CN202520633U (en) | 2012-03-07 | 2012-03-07 | Cabin dredge pump with impeller adopting dual-seam-allowance positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200829726U CN202520633U (en) | 2012-03-07 | 2012-03-07 | Cabin dredge pump with impeller adopting dual-seam-allowance positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520633U true CN202520633U (en) | 2012-11-07 |
Family
ID=47103585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200829726U Expired - Fee Related CN202520633U (en) | 2012-03-07 | 2012-03-07 | Cabin dredge pump with impeller adopting dual-seam-allowance positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307980A (en) * | 2019-08-21 | 2019-10-08 | 中车株洲电机有限公司 | A kind of traction electric machine is axial to quantify loading device and its operating method |
-
2012
- 2012-03-07 CN CN2012200829726U patent/CN202520633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307980A (en) * | 2019-08-21 | 2019-10-08 | 中车株洲电机有限公司 | A kind of traction electric machine is axial to quantify loading device and its operating method |
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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: 20121107 Termination date: 20210307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |