CN200946593Y - Self-tightening impeller - Google Patents
Self-tightening impeller Download PDFInfo
- Publication number
- CN200946593Y CN200946593Y CN 200620035494 CN200620035494U CN200946593Y CN 200946593 Y CN200946593 Y CN 200946593Y CN 200620035494 CN200620035494 CN 200620035494 CN 200620035494 U CN200620035494 U CN 200620035494U CN 200946593 Y CN200946593 Y CN 200946593Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- screw
- cap
- locking nut
- shaped locking
- 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
Links
Images
Abstract
The utility model discloses a self-fastening impeller, comprising essentially an impeller, a rotary shaft and a cap-shaped locking nut, wherein the impeller is mounted sleevedly on the rotary shaft and is locked firm with the cap-shaped locking nut which is screwed to the rotary shaft. The utility model is characterized in that the cap end of the cap-shaped locking nut and end surface center of the rotary shaft have corresponding screw holes and that a check screw is screwed into the screw holes to fix the cap-shaped locking nut and the rotary shaft into a whole. The utility model, utilizing the screwing direction opposition of the check screw and the cap-shaped locking nut, realizes the mutual locking of the cap-shaped locking nut and the check screw whether the impeller is in obverse or reverse rotation, thereby making the impeller able to automatically fasten during the whole process of rotation.
Description
Technical field
The utility model relate to a kind of can be from fastening impeller of pump.
Background technique
Pump is the fluid conveying machine that industrial and mining enterprise generally use, and the locking of impeller is particularly important to guaranteeing the pump safe and reliable operation in the pump.In the prior art, pump is under normal operation, the locking of impeller is to realize by wearing the thread rotary orientation lock screw opposite with the impeller rotation direction in the pump, but when pump is under the abnormal operating state, need impeller when opposite direction turns round, it is loosening to adopt existing impeller locking mode to be easy to bring out the generation of impeller lock screw, thereby causes impeller loosening, produce accident potential, jeopardize the safe and reliable operation of pump.
Summary of the invention
The purpose of this utility model provides a kind of from fastening impeller, can make impeller of pump no matter be in the forward or reverse state, all can lock reliably.
A kind of from fastening impeller, mainly constitute by impeller, running shaft, hat lock screw, impeller set is loaded on the running shaft, and lock by the hat lock screw that is rotatably connected on the running shaft and thread rotary orientation is opposite with the impeller rotation direction, it is characterized in that being drilled with screw at the cap end of hat lock screw and the end face center correspondence of running shaft, backing-up screw is screwed in screw hat lock screw and running shaft is fixed as one, and the rotation direction of backing-up screw is opposite with the rotation direction of hat lock screw.
Because the rotation direction of hat lock screw is opposite with the rotation direction of backing-up screw, make no matter impeller is in forward or reverse between hat lock screw and the backing-up screw all can form interlocking, thereby it is effectively fastening that impeller can be obtained automatically.
Description of drawings
Figure is an impeller assembly structure schematic representation.
Among the figure: 1. impeller, 2. running shaft, 3. hat lock screw, 4. screw, 5. backing-up screw.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
In corresponding auger shell hole, the end face center of the cap end of hat lock screw 3 and running shaft 24, impeller 1 is set on the running shaft 2, hat lock screw 3 is rotatably connected in locking impeller 1 on the running shaft 2; Backing-up screw 5 is screwed in screw 4, hat lock screw 3 and running shaft 2 are fixed as one, the rotation direction of backing-up screw 5 is opposite with the rotation direction of hat lock screw 3.By the reverse thread that forms between hat lock screw and the backing-up screw, can make impeller no matter be in the forward or reverse state and all can form interlocking, thereby it is effectively fastening that impeller can be obtained.
Claims (1)
1, a kind of from fastening impeller, mainly form by impeller (1), running shaft (2), hat lock screw (3), impeller (1) is set on the running shaft (2), hat lock screw (3) is rotatably connected on the running shaft (2), it is characterized in that: be drilled with screw (4) at the cap end of hat lock screw (3) and the end face center correspondence of running shaft (2), backing-up screw (5) is screwed in screw (4), hat lock screw (3) and running shaft (2) locking are one, and the rotation direction of backing-up screw (5) is opposite with the rotation direction of hat lock screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035494 CN200946593Y (en) | 2006-09-02 | 2006-09-02 | Self-tightening impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035494 CN200946593Y (en) | 2006-09-02 | 2006-09-02 | Self-tightening impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946593Y true CN200946593Y (en) | 2007-09-12 |
Family
ID=38733654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620035494 Expired - Fee Related CN200946593Y (en) | 2006-09-02 | 2006-09-02 | Self-tightening impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946593Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225085A (en) * | 2016-09-12 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade structure and there is its air-conditioner |
| CN108488094A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of anti-dropout pivot structure for fan |
-
2006
- 2006-09-02 CN CN 200620035494 patent/CN200946593Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225085A (en) * | 2016-09-12 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade structure and there is its air-conditioner |
| CN108488094A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of anti-dropout pivot structure for fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201507528U (en) | Locking bolt | |
| CN200946593Y (en) | Self-tightening impeller | |
| CN202833279U (en) | Locking device of chemical pump impeller | |
| CN106089912B (en) | A kind of shockproof self-locking screw | |
| CN209638208U (en) | A kind of anti-loosening screw fastener | |
| CN203384188U (en) | Anti-looseness device for outer hexagon bolt or nut | |
| CN201090506Y (en) | Impeller anti-loose apparatus of water pump | |
| CN202228420U (en) | Impeller looseness prevention device of vertical pump with long shaft | |
| CN204591968U (en) | Dynamic device components and parts packing ring | |
| CN207609667U (en) | A kind of bolt | |
| CN200978820Y (en) | Structure for preventing loosening of vertical axial flow pump locking nut | |
| CN2842046Y (en) | A kind of safety lock that prevents nut loosening | |
| CN106246700B (en) | A kind of production method of shockproof self-locking screw | |
| CN210715250U (en) | Device for preventing impeller nut from loosening due to impeller reverse rotation | |
| CN201599243U (en) | Novel impeller part with anti-loosing function | |
| CN201293036Y (en) | Crank-pin anti-releasing device | |
| CN202371039U (en) | Motor bearing locking structure | |
| CN211648490U (en) | Improved pump shaft structure of sealless self-control self-priming pump | |
| CN205423412U (en) | Connect retaining member | |
| CN217234068U (en) | Check bolt structure of geological mining machinery | |
| CN213116833U (en) | Impeller anticreep device for pump | |
| CN211259209U (en) | Piston anti-loosening structure | |
| CN220463753U (en) | Screw pump stator dismantling tool | |
| CN211501188U (en) | Fastener convenient to disassemble | |
| CN209164303U (en) | It is a kind of to consolidate locking bolt and its matching component for rotary knife axis |
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: 20070912 Termination date: 20120902 |