CN104564794A - Locking structure of impeller shaft - Google Patents
Locking structure of impeller shaft Download PDFInfo
- Publication number
- CN104564794A CN104564794A CN201310479979.0A CN201310479979A CN104564794A CN 104564794 A CN104564794 A CN 104564794A CN 201310479979 A CN201310479979 A CN 201310479979A CN 104564794 A CN104564794 A CN 104564794A
- Authority
- CN
- China
- Prior art keywords
- impeller
- locking device
- impeller shaft
- key
- shaft
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a special locking device of an impeller shaft, belongs to the technical field of water pumps and aims at solving the problem of impeller loosening. The locking structure of the impeller shaft comprises the impeller, wherein an impeller is mounted on the impeller shaft and radially fixed with the impeller shaft through a key; a locknut is mounted at the shaft end of the impeller through a thread to compress the impeller; the locknut is hexagonal; the special locking device sleeves the shaft end of the impeller shaft and positioned between the hexagonal locknut and the impeller; one end of the special locking device is clamped on the key of the impeller shaft to realize radial fixing; the other end of the special locking device is clamped at the periphery of the hexagonal locknut to realize radial fixing; the front part of the special locking device is provided with a thin-wall cylinder, the middle part of the special locking device is provided with a cone and the rear part of the special locking device is provided with a thick-wall cylinder; a shaft hole is formed in the center of the cone; a key slot matched with the key of the impeller is formed in the inner circumference of the thick-wall cylinder of the rear part. During the use, the key slot at the rear part of the special locking device is clamped on the key of the impeller shaft, so that the rear part cannot rotate; the thin-wall cylinder at the front part is knocked flat and attached to the outer wall of the hexagonal locknut, so that the front part cannot rotate. The locking structure is ingenious in conception, convenient to manufacture and reliable in work.
Description
Technical field
The present invention relates to a kind of locking mechanism of impeller shaft, belong to pump technology field.
Background technique
In prior art, impeller shaft is provided with impeller, impeller realizes radial fixing by key and impeller shaft, the axle head of impeller shaft is provided with locking nut by screw thread, and impeller compresses and realizes axial restraint by locking nut.In using, due to the frequent starting of pump, the locking nut of axle head easily loosens.The lighter causes loosening of impeller, and severe one tears keyway, damages impeller shaft.
Summary of the invention
The object of the invention is to, overcome problems of the prior art, a kind of locking mechanism of impeller shaft is provided, make impeller never becoming loose.
For solving above technical problem, the locking mechanism of a kind of impeller shaft provided by the present invention, comprise impeller shaft, described impeller shaft is provided with impeller, described impeller realizes radial fixing by key and described impeller shaft, the axle head of impeller shaft is provided with locking nut by screw thread and is compressed by described impeller, described locking nut is hexagon, the axle head of described impeller shaft is set with extraordinary locking device, described extraordinary locking device is between described hexagonal locking nut and impeller, the key that one end of extraordinary locking device is stuck in described impeller shaft realize radial fixing, the periphery that the other end is stuck in described hexagonal locking nut realizes radial fixing.
The front portion of described extraordinary locking device is thin walled cylinder, and middle part is cone, and rear portion is thick walled cylinder, and the center of described cone is provided with axis hole, and the inner circumference of described rear portion thick walled cylinder is provided with the keyway suitable with the key of described impeller; During use, the keyway at extraordinary locking device rear portion is stuck on the key of impeller shaft, rear portion can not be rotated, then strike flat by the thin walled cylinder of front portion, be fitted in the outer wall of hexagonal locking nut, and front portion can not be rotated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the locking mechanism of impeller shaft of the present invention.
Fig. 2 is the right elevation of extraordinary locking device.
In figure: 1 hexagonal locking nut, 2 extraordinary locking devices, 3 keys, 4 impeller shafts.
Embodiment
As shown in Figure 1, the locking mechanism of impeller shaft of the present invention, comprise impeller shaft 4, impeller shaft 4 is provided with impeller, impeller realizes radial fixing by key 3 and impeller shaft 4, the axle head of impeller shaft 4 is provided with locking nut 1 by screw thread and is compressed by impeller, locking nut is hexagon, the axle head of impeller shaft is set with extraordinary locking device 2, extraordinary locking device 2 is between hexagonal locking nut 1 and impeller, the key that one end of extraordinary locking device 2 is stuck in impeller shaft 4 realizes radial fixing, the periphery that the other end is stuck in hexagonal locking nut 1 realizes radial fixing.
As shown in Figure 2, the front portion of extraordinary locking device 2 is thin walled cylinder, and middle part is cone, and rear portion is thick walled cylinder, and the center of cone is provided with axis hole, and the inner circumference of rear portion thick walled cylinder is provided with the keyway 201 suitable with the key of impeller; During use, the keyway 2-1 at extraordinary locking device rear portion is stuck on the key of impeller shaft 4, rear portion can not be rotated, then strike flat by the thin walled cylinder of front portion, be fitted in the outer wall of hexagonal locking nut 1, front portion can not be rotated, so locking nut loosens never.
Claims (2)
1. the locking mechanism of an impeller shaft, comprise impeller shaft, described impeller shaft is provided with impeller, described impeller realizes radial fixing by key and described impeller shaft, the axle head of impeller shaft is provided with locking nut by screw thread and is compressed by described impeller, it is characterized in that, described locking nut is hexagon, the axle head of described impeller shaft is set with extraordinary locking device, described extraordinary locking device is between described hexagonal locking nut and impeller, the key that one end of extraordinary locking device is stuck in described impeller shaft realize radial fixing, the periphery that the other end is stuck in described hexagonal locking nut realizes radial fixing.
2. extraordinary locking device according to claim 1, it is characterized in that, the front portion of described extraordinary locking device is thin walled cylinder, middle part is cone, rear portion is thick walled cylinder, the center of described cone is provided with axis hole, and the inner circumference of described rear portion thick walled cylinder is provided with the keyway suitable with the key of described impeller; During use, the keyway at extraordinary locking device rear portion is stuck on the key of impeller shaft, rear portion can not be rotated, then strike flat by the thin walled cylinder of front portion, be fitted in the outer wall of hexagonal locking nut, and front portion can not be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479979.0A CN104564794A (en) | 2013-10-12 | 2013-10-12 | Locking structure of impeller shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479979.0A CN104564794A (en) | 2013-10-12 | 2013-10-12 | Locking structure of impeller shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564794A true CN104564794A (en) | 2015-04-29 |
Family
ID=53081643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479979.0A Pending CN104564794A (en) | 2013-10-12 | 2013-10-12 | Locking structure of impeller shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570198A (en) * | 2016-02-05 | 2016-05-11 | 广州市昕恒泵业制造有限公司 | Pump structure |
| CN107023506A (en) * | 2017-05-10 | 2017-08-08 | 巢湖市聚源机械有限公司 | A kind of water pump for being convenient for changing blade |
-
2013
- 2013-10-12 CN CN201310479979.0A patent/CN104564794A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570198A (en) * | 2016-02-05 | 2016-05-11 | 广州市昕恒泵业制造有限公司 | Pump structure |
| CN107023506A (en) * | 2017-05-10 | 2017-08-08 | 巢湖市聚源机械有限公司 | A kind of water pump for being convenient for changing blade |
| CN107023506B (en) * | 2017-05-10 | 2019-08-23 | 巢湖市聚源机械有限公司 | A kind of water pump being convenient for changing blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102478008A (en) | Shaft end locking structure of pump | |
| CN104564794A (en) | Locking structure of impeller shaft | |
| CN203343986U (en) | Tool for extracting bearing in blind hole | |
| CN204344650U (en) | A kind of nut lock | |
| CN204140674U (en) | Taper sleeve type fast assembling-disassembling coupling | |
| CN204585145U (en) | Reductor dismantling device | |
| CN203604262U (en) | Fixed structure for cooperation of ventilator impeller and motor shaft extension | |
| CN103233967A (en) | Pin type bolt | |
| CN102937111A (en) | Shaft end anti-loosening structure of pump | |
| CN104675746A (en) | Light impeller transmission device | |
| CN204382195U (en) | Centrifugal pump of single stage type axle sleeve extractor | |
| CN203604457U (en) | Reliable gapless connection device for shaft | |
| CN103213196B (en) | Prestressed concrete square pile spiral-tube driving device | |
| CN205438355U (en) | Process units of preparation tibifuding | |
| CN204437090U (en) | A kind of part and machine shaft mounting structure | |
| CN202678700U (en) | A disassembling tool of a Siemens 2M connector | |
| CN204686772U (en) | A kind of detaching device for coupling | |
| CN204149642U (en) | A kind of offset press water bucket roller locking device | |
| CN203956856U (en) | The provision for disengagement of a kind of semiaxis and bearing disassembling device and bearing outer ring | |
| CN205176378U (en) | Gun sight eyepiece frame stop device | |
| CN201437812U (en) | Connecting bolt for windmill | |
| CN203285816U (en) | Bolt provided with guide structure | |
| CN201989106U (en) | Special tool for dismantling belt plate of electric machine | |
| CN204448827U (en) | A kind of hydraulic gripping apparatus locking nut | |
| CN202082251U (en) | Anti-loosening device of bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |