CN101398028B - Nut anti-looseness device - Google Patents
Nut anti-looseness device Download PDFInfo
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- CN101398028B CN101398028B CN2008101219843A CN200810121984A CN101398028B CN 101398028 B CN101398028 B CN 101398028B CN 2008101219843 A CN2008101219843 A CN 2008101219843A CN 200810121984 A CN200810121984 A CN 200810121984A CN 101398028 B CN101398028 B CN 101398028B
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- nut
- retaining sheet
- screw
- key
- hole
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Abstract
The invention discloses a screw looseness-proof device which mainly comprises a screw and a shaft, wherein, the screw is fixedly connected to one end of the shaft by screw threads. A stopping sheet is arranged between the screw and the shaft; a key slot is arranged on the stopping sheet which is connected with the shaft in a key jointing manner by the key slot and a key, and the shaft is connected with an impeller in a key jointing manner by the key; a group of vent holes are arranged on one end surface of the stopping shaft, a shirt rim connected with the end surface of the stopping sheet in a supporting manner is arranged on the screw, positioning holes matched with the vent holes on the stopping sheet are arranged on the shirt rim, the screw is fixedly connected with the stopping sheet by anti-rotation bolts, the vent holes and positioning holes which are matched with the vent holes. Due to the adoption of the technical proposal, the crew looseness-proof device provided by the invention has the following beneficial results: simple structure, reasonable design, capability of efficiently preventing the screw from looseness and continuous tightness.
Description
Technical field
The present invention relates to the nut field, more specifically say, it relates to a kind of nut anti-looseness device.
Background technique
Often stop and anti-car running in the machinery running with anxious.After at present the rotor set screw nut of prior art screwed, if be rotated in the forward, nut can self-tightening, if but counter-rotating, nut just often gets loose easily.Under the influence that is subjected to certain force, it is reliably fastening promptly to use steel-wire screw-socket to guarantee.Revolving part will be twisted into two parts the helical thread portion of axle, and revolving part is come off, and cause equipment badly damaged, make production line be subjected to the influence of stopping.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of and can keep the fastening nut anti-looseness device that becomes flexible of preventing.
The objective of the invention is to be achieved through the following technical solutions.This nut anti-looseness device, mainly comprise nut and rotating shaft, wherein nut is fixedlyed connected by screw thread with an end of rotating shaft, be provided with retaining sheet between described nut and the rotating shaft, retaining sheet is provided with keyway, retaining sheet is keyed jointing with rotating shaft and is connected by keyway, key, and rotating shaft is keyed jointing by key and impeller and is connected; The end face of retaining sheet is provided with one group of through hole, and nut is provided with the shirt rim that connects with the retaining sheet end face, and the shirt rim is provided with the positioning hole that matches with through hole on the retaining sheet, and nut and retaining sheet are fixedlyed connected with positioning hole by anti-turn screw, the through hole that matches.
Described keyway is a slotted eye that does not connect of leaving vertically on the inwall of retaining sheet through hole, and key is inserted in the slotted eye and connects with the bottom end face of slotted eye, prevents the axial motion of key, make connect more fastening.
Through hole on the described retaining sheet end face evenly distributes along circumference, and the diameter of through hole is big or small consistent with positioning hole.
Described nut and the shirt rim structure that is formed in one.
Because adopt technique scheme, nut anti-looseness device provided by the invention has following beneficial effect: simple in structure, reasonable in design, can prevent effectively that nut from unclamping, keep fastening.
Description of drawings
Fig. 1 is the main cross-sectional view of looking of the present invention;
Fig. 2 is the main TV structure schematic representation of retaining sheet part of the present invention;
Fig. 3 is the structural representation of nut portion of the present invention.
Description of reference numerals: 1 nut; 2 rotating shafts; 3 retaining sheets; 4 keys; 5 through holes; 6 positioning holes; 7 shirt rims; 8 keyways; 9 impellers; 10 anti-turn screws.
Embodiment
Below in conjunction with drawings and Examples the present invention is described further.Though the present invention will be described in conjunction with preferred embodiment, should know, do not represent to limit the invention among the described embodiment.On the contrary, the present invention will be contained alternative, modified model and the equivalent in the scope of the present invention that can be included in attached claims qualification.
Referring to Fig. 1-3, the nut anti-looseness device of Jie Shaoing generally is used for the fastening piece that is connected of rotatingshaft and impeller here, yet should know that the present invention also can be used for being connected and fixed of other mechanical rotor and running shaft.This nut anti-looseness device, mainly comprise nut 1 and rotating shaft 2, wherein nut 1 is fixedlyed connected by screw thread with an end of rotating shaft 2, be provided with retaining sheet 3 between described nut 1 and the rotating shaft 2, retaining sheet 3 is provided with keyway 8, keyway 8 is slotted eyes that do not connect leaving vertically on the inwall of retaining sheet 3 through holes, and key 4 is inserted in the slotted eye and connects with the bottom end face of slotted eye.Retaining sheet 3 is keyed jointing with rotating shaft 2 and is connected by keyway 8, key 4, and rotating shaft 2 is keyed jointing by key 4 with impeller 9 and is connected; The end face of retaining sheet 3 is provided with one group along the equally distributed through hole 5 of circumference, and nut 1 is provided with the shirt rim 7 that connects with retaining sheet 3 end faces, nut 1 and shirt rim 7 structure that is formed in one.Shirt rim 7 is provided with the positioning hole 6 that matches with through hole 5 on the retaining sheet 3, and the diameter of through hole 5 is big or small consistent with positioning hole 6, and nut 1 and retaining sheet 3 are fixedlyed connected with positioning hole 6 by anti-turn screw 10, the through hole 5 that matches.
Installation process: impeller 9 penetrates in the rotating shaft 2 by key 4 keyed jointings, be inserted in retaining sheet 3, make that the keyway 8 on the retaining sheet 3 is contained on the key 4, be screwed into nut 1 and anti-turn screw 10 penetrated one of two positioning holes 6 of nut, aim at the through hole 5 in the retaining sheet 3, can finish nut anti-looseness device.
The groundwork principle of nut anti-looseness device is: when nut 1 connects with rotating shaft 2, nut 1 makes the positioning hole 6 on the nut 1 relative with through hole 5 on the retaining sheet after compressing retaining sheet 3, again anti-turn screw 10 is packed into positioning hole 6 and connect through hole 5, make nut 1 and retaining sheet 3 fixing diametrically, retaining sheet 3 is fixing by the key 4 of rotating shaft 2 end faces after compressing, nut 1 is in fact fixing diametrically with rotating shaft 2 like this, no matter rotating shaft 2 is just to change or the rotation of anti-car, nut 1 can not come off from rotating shaft 2, thereby impeller 9 is fastened in the rotating shaft 2, has avoided coming off of impeller 9.
Claims (4)
1. nut anti-looseness device, mainly comprise nut (1) and rotating shaft (2), wherein nut (1) is fixedlyed connected by screw thread with an end of rotating shaft (2), it is characterized in that: be provided with retaining sheet (3) between described nut (1) and the rotating shaft (2), retaining sheet (3) is provided with keyway (8), retaining sheet (3) is keyed jointing with rotating shaft (2) and is connected by keyway (8), key (4), and rotating shaft (2) is keyed jointing by key (4) with impeller (9) and is connected; The end face of retaining sheet (3) is provided with one group of through hole (5), nut (1) is provided with the shirt rim (7) that connects with retaining sheet (3) end face, shirt rim (7) is provided with the positioning hole (6) that matches with through hole (5) on the retaining sheet (3), and nut (1) and retaining sheet (3) are fixedlyed connected with positioning hole (6) by anti-turn screw (10), the through hole (5) that matches.
2. nut anti-looseness device according to claim 1, it is characterized in that: described keyway (8) is a slotted eye that does not connect of leaving vertically on the inwall of retaining sheet (3) through hole, and key (4) is inserted in the slotted eye and connects with the bottom end face of slotted eye.
3. nut anti-looseness device according to claim 1 is characterized in that: the through hole (5) on described retaining sheet (3) end face evenly distributes along circumference, and the diameter of through hole (5) is big or small consistent with positioning hole (6).
4. nut anti-looseness device according to claim 1 is characterized in that: described nut (1) and shirt rim (7) structure that is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101219843A CN101398028B (en) | 2008-11-06 | 2008-11-06 | Nut anti-looseness device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101219843A CN101398028B (en) | 2008-11-06 | 2008-11-06 | Nut anti-looseness device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101398028A CN101398028A (en) | 2009-04-01 |
| CN101398028B true CN101398028B (en) | 2011-01-26 |
Family
ID=40516799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101219843A Active CN101398028B (en) | 2008-11-06 | 2008-11-06 | Nut anti-looseness device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101398028B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825134B (en) * | 2010-04-28 | 2012-05-02 | 杭州前进齿轮箱集团股份有限公司 | Limit locking nut and limit locking device |
| CN110043551B (en) * | 2019-05-23 | 2024-03-22 | 湖南机电职业技术学院 | Anti-loose shaft sleeve nut |
| CN113500812A (en) * | 2021-07-02 | 2021-10-15 | 山东高密高锻机械有限公司 | Press machine capable of stably positioning high-speed shaft small herringbone gear |
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2008
- 2008-11-06 CN CN2008101219843A patent/CN101398028B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101398028A (en) | 2009-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Pump Co. Ltd. Assignor: Chen Qian Contract record no.: 2011330000078 Denomination of invention: Nut anti-looseness device Granted publication date: 20110126 License type: Exclusive License Open date: 20090401 Record date: 20110311 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160901 Address after: Five 310030 Hangzhou Road, Zhejiang province Xihu District three, West Lake science and Technology Park Xiyuan No. 12 Patentee after: Hangzhou Pump Co. Ltd. Address before: Five 310030 Hangzhou Road, Zhejiang province Xihu District three, West Lake science and Technology Park Xiyuan No. 12 Hangzhou Pump Co. Ltd. Patentee before: Chen Qian |