CN202851593U - Large-diameter shaft end left-right-screwing nut looseness-prevention device - Google Patents
Large-diameter shaft end left-right-screwing nut looseness-prevention device Download PDFInfo
- Publication number
- CN202851593U CN202851593U CN 201220297324 CN201220297324U CN202851593U CN 202851593 U CN202851593 U CN 202851593U CN 201220297324 CN201220297324 CN 201220297324 CN 201220297324 U CN201220297324 U CN 201220297324U CN 202851593 U CN202851593 U CN 202851593U
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- nut
- screw
- hole
- locking nut
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Abstract
The utility model discloses a large-diameter shaft end left-right-screwing nut looseness-prevention device which comprises a large-diameter shaft rod (1), a clamped body (2) and a looseness-prevention device. Left-right-screwing threads are arranged on an E segment and an F segment of the end portion of the large-diameter shaft rod (1), and the looseness-prevention device is composed of a fixed nut (3), a tensioning bolt (4), a pushing bolt (6) and a locking nut (5). The fixed nut (3) is tightly screwed on the E segment thread, and the locking nut (5) is screwed on the F segment thread together, a gap between the fixed nut (3) and the locking nut (5) ranges from 0.5mm to 20mm, the tensioning bolt (4) is linked with the fixed nut (3) and the locking nut (5), and the pushing bolt (6) is linked with the fixed nut (3) and the locking nut (5). The large-diameter shaft end left-right-screwing nut looseness-prevention device is suitable for tightening of a large-diameter shaft end.
Description
Technical field
The utility model relates to a kind of locking device, in particular, relates to a kind of major diameter axle head left-right rotary nut anti-looseness device.
Background technique
At present, when the end of major diameter axostylus axostyle needs nut to tighten, because axostylus axostyle is major diameter, so nut is not easy to tighten, and machinery also can to cause nut to produce in the vibrations in when operation loosening, the degradation in the time of can causing mechanical movement, even can lead to a disaster.
For preventing the generation of nut loosening phenomenon, have special-purpose locking nut, but this locking nut should punch simultaneously at axostylus axostyle, nut, after assembling, twine again and tie up iron wire, and can not reuse; Also there is a kind of locking nut to realize with encapsulating, can not reuses equally;
Have also that to use anti-loosening left-right rotary screw thread combination bolt and nut, this assembling bolt nut be by left-right rotary screw bolt, reciprocity law power when nut cooperates, reach anti-loosening effect.But two nuts are next anti-loosening by frictional force, because the effect of frictional force also can make set screw nut Hui Song, locking effect is not very good; And constantly reciprocity law power can make frictional force constantly change, and pretightening force just is difficult for prediction like this; When locking to major diameter axle head needs, also be not easy to tighten.Up to the present, a kind of reusable major diameter left-right rotary nut anti-looseness device not yet appears on the market.
The model utility content
The purpose of this utility model is can not well tighten the end of major diameter axostylus axostyle and the phenomenon that nut easily becomes flexible for existing nut, and a kind of major diameter axle head left-right rotary nut anti-looseness device is provided.
Major diameter axle head left-right rotary nut anti-looseness device of the present utility model, comprise major diameter axostylus axostyle, clamped body and locking device, end E section and the F section of described major diameter axostylus axostyle are provided with the left-right rotary screw thread, described locking device by set screw nut, stretching screw, push screw open and locking nut forms, set screw nut is tightened on E section screw thread, locking nut screws at F section screw thread, set screw nut and locking nut spacing 0.5mm-20mm, stretching screw be connected and fixed nut and locking nut are pushed screw attachment set screw nut and locking nut open.
The end E section of described major diameter axostylus axostyle is dextrorotation, and the F section is left-handed, and to be that dextrorotation is upper left screw off described set screw nut, and locking nut is left-handed upper right screwing off.
The end E section of described major diameter axostylus axostyle is left-handed, and the F section is dextrorotation, and described set screw nut is left-handed upper right screwing off, and to be that dextrorotation is upper left screw off locking nut.
Described set screw nut and locking nut spacing 5mm-10mm.
The front end of described stretching screw has screw thread, the rear end is without screw thread, there is screw thread described rear end of pushing screw open, front end is without screw thread, 1-3 blind hole of processing on the described set screw nut circumferencial direction, 1-3 interior threaded hole, blind hole and interior threaded hole intercross arrangement, 1-3 light through hole of processing on the described locking nut circumferencial direction, 1-3 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the light through hole that the threaded front end of stretching screw passes on the locking nut connects with interior threaded hole on the set screw nut, the rear end screw thread of pushing screw open screws in the internal thread through hole on locking nut, and front end withstands in the blind hole on the set screw nut.
The beneficial effects of the utility model: (1) simple in structure, be easy to make; (2) practical, can reuse, and can well prevent mechanical shock and the loosening phenomenon that produces; (3) pretightening force is constant, effectively prevents the loosening of nut; (4) avoid mutual friction between nut, prolonged the service time of nut; (5) easy for installation.
Description of drawings
Fig. 1 is the view that the end is provided with the major diameter axostylus axostyle of left-right rotary screw thread;
Fig. 2 is the structural representation of locking device;
Fig. 3 is the A-A sectional view of major diameter axle end locking device;
Fig. 4 is the B-B sectional view of major diameter axle end locking device;
Fig. 5 is the structural representation of set screw nut;
Fig. 6 is the E-E revolved view of Fig. 5;
Fig. 7 is the structural representation of locking nut;
Fig. 8 is the F-F revolved view of Fig. 7;
Among the figure: major diameter axostylus axostyle 1, clamped body 2, set screw nut 3, stretching screw 4, locking nut 5, push screw 6 open.
Embodiment
End E section and the F section of described major diameter axostylus axostyle 1 are provided with the left-right rotary screw thread, described E section is dextrorotation, the F section is left-handed, described set screw nut 3 screws off for dextrorotation is upper left, locking nut 5 is left-handed upper right screwing off, locking device is by set screw nut 3, stretching screw 4, push screw 6 and locking nut 5 compositions open, the front end of described stretching screw 4 has screw thread, the rear end is without screw thread, there is screw thread described rear end of pushing screw 6 open, front end is processed 2 blind holes, 2 interior threaded holes without screw thread on described set screw nut 3 circumferencial directions, blind hole and interior threaded hole intercross arrangement, 2 light through holes of processing on described locking nut 5 circumferencial directions, 2 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the light through hole that stretching screw 4 threaded front ends pass on the locking nut 5 connects with interior threaded hole on the set screw nut 3, the rear end screw thread of pushing screw 6 open screws in the internal thread through hole on locking nut 5, and front end withstands in the blind hole on the set screw nut 3, and set screw nut 3 is 10mm with locking nut 5 spacings.
Like this when mechanical movement, because vibrations, set screw nut 3 loosening meeting will occur to anticlockwise, because the front end of stretching screw 4 has screw thread, the rear end is without screw thread, at this moment stretching screw 4 can make the pretightening force of 2 of set screw nut 3 and clamped bodies diminish, and there is screw thread the rear end of pushing screw 6 open, and front end is without screw thread, guaranteed that set screw nut 3 and locking nut 5 spacings are constant, and reach a balance with stretching screw 4, thereby it is left-handed to drive locking nut 5, has prevented the loosening of nut; Set screw nut 3 is 10mm with locking nut 5 spacings, avoids the mutual friction between nut, has prolonged the service time of nut; Easy for installation.
End E section and the F section of described major diameter axostylus axostyle 1 are provided with the left-right rotary screw thread, described E section is left-handed, the F section is dextrorotation, described set screw nut 3 is left-handed upper right screwing off, locking nut 5 screws off for dextrorotation is upper left, locking device is by set screw nut 3, stretching screw 4, push screw 6 and locking nut 5 compositions open, the front end of described stretching screw 4 has screw thread, the rear end is without screw thread, there is screw thread described rear end of pushing screw 6 open, front end is processed 2 blind holes, 2 interior threaded holes without screw thread on described set screw nut 3 circumferencial directions, blind hole and interior threaded hole intercross arrangement, 2 light through holes of processing on described locking nut 5 circumferencial directions, 2 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the light through hole that stretching screw 4 threaded front ends pass on the locking nut 5 connects with interior threaded hole on the set screw nut 3, the rear end screw thread of pushing screw 6 open screws in the internal thread through hole on locking nut 5, and front end withstands in the blind hole on the set screw nut 3, and set screw nut 3 is 5mm with locking nut 5 spacings.
Claims (5)
1. major diameter axle head left-right rotary nut anti-looseness device, comprise major diameter axostylus axostyle (1), clamped body (2) and locking device, it is characterized in that, end E section and the F section of described major diameter axostylus axostyle (1) are provided with the left-right rotary screw thread, described locking device is by set screw nut (3), stretching screw (4), pushing screw (6) and locking nut (5) open forms, described set screw nut (3) is tightened on E section screw thread, locking nut (5) screws at F section screw thread, set screw nut (3) and locking nut (5) spacing 0.5mm-20mm, described stretching screw (4) be connected and fixed nut (3) and locking nut (5) are pushed screw (6) be connected and fixed nut (3) and locking nut (5) open.
2. major diameter axle head left-right rotary nut anti-looseness device according to claim 1, it is characterized in that the end E section of described major diameter axostylus axostyle (1) is dextrorotation, the F section is left-handed, described set screw nut (3) screws off for dextrorotation is upper left, and locking nut (5) is left-handed upper right screwing off.
3. major diameter axle head left-right rotary nut anti-looseness device according to claim 1, it is characterized in that the end E section of described major diameter axostylus axostyle (1) is left-handed, the F section is dextrorotation, described set screw nut (3) is left-handed upper right screwing off, and locking nut (5) screws off for dextrorotation is upper left.
4. major diameter axle head left-right rotary nut anti-looseness device according to claim 1 is characterized in that, described set screw nut (3) and locking nut (5) spacing 5mm-10mm.
5. major diameter axle head left-right rotary nut anti-looseness device according to claim 1, it is characterized in that, the front end of described stretching screw (4) has screw thread, the rear end is without screw thread, there is screw thread described rear end of pushing screw (6) open, front end is without screw thread, 1-3 blind hole of processing on described set screw nut (3) circumferencial direction, 1-3 interior threaded hole, blind hole and interior threaded hole intercross arrangement, 1-3 light through hole of processing on described locking nut (5) circumferencial direction, 1-3 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the light through hole that the threaded front end of stretching screw (4) passes on the locking nut (5) connects with interior threaded hole on the set screw nut (3), the rear end screw thread of pushing screw (6) open screws in the internal thread through hole on locking nut (5), and front end withstands in the blind hole on the set screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297324 CN202851593U (en) | 2012-06-25 | 2012-06-25 | Large-diameter shaft end left-right-screwing nut looseness-prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297324 CN202851593U (en) | 2012-06-25 | 2012-06-25 | Large-diameter shaft end left-right-screwing nut looseness-prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851593U true CN202851593U (en) | 2013-04-03 |
Family
ID=47982799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297324 Withdrawn - After Issue CN202851593U (en) | 2012-06-25 | 2012-06-25 | Large-diameter shaft end left-right-screwing nut looseness-prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705341A (en) * | 2012-06-25 | 2012-10-03 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
-
2012
- 2012-06-25 CN CN 201220297324 patent/CN202851593U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705341A (en) * | 2012-06-25 | 2012-10-03 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| CN102705341B (en) * | 2012-06-25 | 2014-06-11 | 中国十七冶集团有限公司 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |