CN201937379U - Novel motor-shaft extending structure - Google Patents
Novel motor-shaft extending structure Download PDFInfo
- Publication number
- CN201937379U CN201937379U CN 201020654767 CN201020654767U CN201937379U CN 201937379 U CN201937379 U CN 201937379U CN 201020654767 CN201020654767 CN 201020654767 CN 201020654767 U CN201020654767 U CN 201020654767U CN 201937379 U CN201937379 U CN 201937379U
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- CN
- China
- Prior art keywords
- motor
- coupling sleeve
- connecting sleeve
- shaft
- bearing
- 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 novel motor-shaft extending structure, which comprises a motor end cover and a motor shaft, wherein a connecting sleeve is sleeved at the top end of the motor shaft, the connecting sleeve and the motor shaft are in key connection, a bearing is sleeved at the outer side of the connecting sleeve, an outer ring of the bearing is positioned in a shaft-seat hole of the motor end cover, the outer lateral surface of the bearing is fixed through a bearing retainer ring and a shaft circlip which are clamped on the connecting sleeve, and a framework oil seal is arranged between the connecting sleeve and the motor end cover. The connecting sleeve is divided into two halves and provided with a gap in the middle, the two halves are fixedly connected through four fastening bolts, and the middle at the front end of the connecting sleeve is provided with a through hole. A jackscrew hole is drilled at the front end of the connecting sleeve. The novel motor-shaft extending structure has the advantages that the motor-shaft extending structure can be simplified, the production cost is lowered, and resources are saved.
Description
Technical field
The utility model relates to a kind of novel motor shaft extension structure.
Background technology
The shaft extension of small-sized threephase asynchronous machine all is a national standard, and therefore the wide range of motor application, and for water pump, it does not need the shaft extension of labyrinth like this can simplify the shaft extension of motor, as long as and can satisfy the needs of specific water pump.If so can be under the situation that satisfies the water pump demand, the structure of simplifying shaft extension can reduce production costs, and economizes on resources.
Summary of the invention
The purpose of this utility model is exactly to propose a kind of novel motor shaft extension structure, can satisfy the needs of minitype vertical type multistage pump, simplifies pump structure, the part of the few pump of letter.The utility model designs a kind of novel motor shaft extension structure, comprise electric motor end cap, motor shaft, it is characterized in that: motor shaft is with coupling sleeve on the top, coupling sleeve and motor shaft are by key connecting, the coupling sleeve outside is with bearing, bearing outer ring is positioned at the axle bed hole of electric motor end cap, is fixed by the end ring and the circlip for shaft that are stuck on the coupling sleeve on the bearing lateral surface, and an outside framework oil seal is arranged between coupling sleeve and the electric motor end cap.It is characterized in that: coupling sleeve is two halves, and middle gapped, two halves are fixedly connected by four holding screws, and through hole is arranged in the middle of the coupling sleeve front end.It is characterized in that: offer top wire hole on the coupling sleeve front end.The utility model has the advantages that the shaft extension structure that to simplify motor, reduce production costs, economize on resources.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model, and Fig. 2,3 is the coupling sleeve structural representation.
Below in conjunction with accompanying drawing and construction embodiment the utility model is made detailed operation instruction.
Embodiment
Comprise electric motor end cap 1, motor shaft 2 among the figure, it is characterized in that: be with coupling sleeve 3 on the motor shaft top, coupling sleeve is connected by key 4 with motor shaft, the coupling sleeve outside is with bearing 5, bearing outer ring is positioned at the axle bed hole 7 of electric motor end cap, fixing on the bearing lateral surface by the end ring 8 and the circlip for shaft 9 that are stuck on the coupling sleeve, an outside framework oil seal 10 is arranged between coupling sleeve and the electric motor end cap.It is characterized in that: coupling sleeve is two halves, and middle gapped 13, two halves are fixedly connected by four holding screws 11, and through hole 12 is arranged in the middle of the coupling sleeve front end.It is characterized in that: offer top wire hole 6 on the coupling sleeve front end.
Some water pump does not need oversize shaft extension, and this kind structural requirement motor extension is a circular hole, and direct and pump shaft links, and the through hole of coupling sleeve front end of the present utility model is the circular hole that links to each other with pump shaft, can simplify pump structure greatly.The axial force that MODEL VERTICAL MULTISTAGE PUMP is produced by less radial load and multi-stage impeller often, the ball bearing that this kind structure is convenient to the bottom bears axial force, because coupling sleeve and motor shaft are interference fits, can only the little radial load of bearing pump end.So this structure is specially adapted for the minitype vertical type centrifugal multistage pump multiple centrifugal pump.
Claims (3)
1. novel motor shaft extension structure, comprise electric motor end cap, motor shaft, it is characterized in that: motor shaft is with coupling sleeve on the top, coupling sleeve and motor shaft are by key connecting, the coupling sleeve outside is with bearing, bearing outer ring is positioned at the axle bed hole of electric motor end cap, is fixed by the end ring and the circlip for shaft that are stuck on the coupling sleeve on the bearing lateral surface, and an outside framework oil seal is arranged between coupling sleeve and the electric motor end cap.
2. by the described a kind of novel motor shaft extension structure of claim 1, it is characterized in that: coupling sleeve is two halves, and middle gapped, two halves are fixedly connected by four holding screws, and through hole is arranged in the middle of the coupling sleeve front end.
3. by the described a kind of novel motor shaft extension structure of claim 1, it is characterized in that: offer top wire hole on the coupling sleeve front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020654767 CN201937379U (en) | 2010-12-13 | 2010-12-13 | Novel motor-shaft extending structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020654767 CN201937379U (en) | 2010-12-13 | 2010-12-13 | Novel motor-shaft extending structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937379U true CN201937379U (en) | 2011-08-17 |
Family
ID=44448884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020654767 Expired - Fee Related CN201937379U (en) | 2010-12-13 | 2010-12-13 | Novel motor-shaft extending structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099060A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measure for preventing outer rotor fan rotation shaft from falling |
-
2010
- 2010-12-13 CN CN 201020654767 patent/CN201937379U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099060A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measure for preventing outer rotor fan rotation shaft from falling |
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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: 20110817 Termination date: 20121213 |