CN102705341B - Left-handed and right-handed rotation nut locking device for large-diameter shaft end - Google Patents
Left-handed and right-handed rotation nut locking device for large-diameter shaft end Download PDFInfo
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- CN102705341B CN102705341B CN201210209156.1A CN201210209156A CN102705341B CN 102705341 B CN102705341 B CN 102705341B CN 201210209156 A CN201210209156 A CN 201210209156A CN 102705341 B CN102705341 B CN 102705341B
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Abstract
The invention discloses a left-handed and right-handed rotation nut locking device for a large-diameter shaft end, which includes a large-diameter shaft lever (1), a clamped body (2) and a locking device, wherein left-handed and right-handed rotation screw threads are arranged at an E section and an F section of an end part of the large-diameter shaft lever (1); the locking device comprises fixing nuts (3), tensioning bolts (4), pushing bolts (6) and locking nuts (5); the fixing nuts (3) are screwed tightly at the E section screw thread; the locking nuts (5) are screwed tightly at the F section screw thread; the distances between the fixing nuts (3) and the locking nuts (5) range from 0.5 mm to 20 mm; and the fixing nuts (3) and the locking nuts (5) are connected by the tensioning bolts (4) and the pushing bolts (6) respectively. The large-diameter shaft end left-handed and right-handed rotation nut locking device is suitable for fastening the large-diameter shaft end.
Description
Technical field
The present invention relates to a kind of locking device, in particular, relate 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 can cause mechanical movement time, even can lead to a disaster.
For preventing the generation of nut loosening phenomenon, have special locking nut, but this locking nut should punch on axostylus axostyle, nut simultaneously, after assembling, twine and tie up iron wire again, and can not reuse; Also there is a kind of locking nut encapsulating to realize, can not reuse equally;
Also have the anti-loosening left-right rotary screw thread of use combination bolt and nut, this assembling bolt nut is the reciprocity law power while coordinating by left-right rotary screw bolt, nut, reaches anti-loosening effect.But it is anti-loosening that two nuts come by frictional force, due to the effect of frictional force, also can make set screw nut Hui Song, and locking effect is not very good; And constantly reciprocity law power can make frictional force constantly change, pretightening force is just difficult for prediction like this; When locking to major diameter axle head needs, be also not easy to tighten.Up to the present, on market, not yet there is a kind of reusable major diameter left-right rotary nut anti-looseness device.
Summary of the invention
The object of the invention is can not well tighten easily loosening phenomenon of the end of major diameter axostylus axostyle and nut 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 invention, 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 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, push screw attachment set screw nut and locking nut open.
The end E section of described major diameter axostylus axostyle is dextrorotation, and 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 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, rear end is without screw thread, there is screw thread described rear end of pushing screw open, front end is without screw thread, on described set screw nut circumferencial direction, process 1-3 blind hole, 1-3 interior threaded hole, blind hole and interior threaded hole intercross arrangement, on described locking nut circumferencial direction, process 1-3 light through hole, 1-3 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the threaded front end of stretching screw connects with the interior threaded hole on set screw nut through the light through hole on locking nut, the rear end screw thread of pushing screw open screws in the internal thread through hole on locking nut, front end withstands in the blind hole on set screw nut.
Beneficial effect of the present invention: (1) simple in structure, be easy to manufacture; (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 the mutual friction between nut, extended the service time of nut; (5) easy for installation.
Accompanying drawing explanation
Fig. 1 is the view that 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;
In 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 left-right rotary screw thread, described E section is dextrorotation, 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 open and locking nut 5 forms, the front end of described stretching screw 4 has screw thread, rear end is without screw thread, there is screw thread described rear end of pushing screw 6 open, front end is without screw thread, on described set screw nut 3 circumferencial directions, process 2 blind holes, 2 interior threaded holes, blind hole and interior threaded hole intercross arrangement, on described locking nut 5 circumferencial directions, process 2 light through holes, 2 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the threaded front end of stretching screw 4 connects with the interior threaded hole on set screw nut 3 through the light through hole on locking nut 5, the rear end screw thread of pushing screw 6 open screws in the internal thread through hole on locking nut 5, front end withstands in the blind hole on set screw nut 3, set screw nut 3 is 10mm with locking nut 5 spacing.
Like this in the time of mechanical movement, due to vibrations, set screw nut 3 will occur that loosening meeting is to anticlockwise, because the front end of stretching screw 4 has screw thread, rear end is without screw thread, at this moment stretching screw 4 can make the pretightening force between set screw nut 3 and clamped body 2 diminish, and there is screw thread the rear end of pushing screw 6 open, and front end is without screw thread, guarantee that set screw nut 3 and locking nut 5 spacing are constant, and reach a balance with stretching screw 4, thus drive locking nut 5 left-handed, prevent the loosening of nut; Set screw nut 3 is 10mm with locking nut 5 spacing, avoids the mutual friction between nut, has extended 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 left-right rotary screw thread, described E section is left-handed, 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 open and locking nut 5 forms, the front end of described stretching screw 4 has screw thread, rear end is without screw thread, there is screw thread described rear end of pushing screw 6 open, front end is without screw thread, on described set screw nut 3 circumferencial directions, process 2 blind holes, 2 interior threaded holes, blind hole and interior threaded hole intercross arrangement, on described locking nut 5 circumferencial directions, process 2 light through holes, 2 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the threaded front end of stretching screw 4 connects with the interior threaded hole on set screw nut 3 through the light through hole on locking nut 5, the rear end screw thread of pushing screw 6 open screws in the internal thread through hole on locking nut 5, front end withstands in the blind hole on set screw nut 3, set screw nut 3 is 5mm with locking nut 5 spacing.
Claims (5)
1. a major diameter axle head left-right rotary nut anti-looseness device, comprises major diameter axostylus axostyle (1), clamped body (2) and locking device, it is characterized in that, the end E section of described major diameter axostylus axostyle (1) is provided with left-handed thread, and F section is provided with right-handed thread; Or the end E section of major diameter axostylus axostyle (1) is provided with right-handed thread, F section is provided with left-handed thread, described locking device by set screw nut (3), stretching screw (4), push screw (6) open and locking nut (5) 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), push 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, and 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, and 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, rear end is without screw thread, there is screw thread the described rear end of pushing screw (6) open, front end is without screw thread, on described set screw nut (3) circumferencial direction, process 1-3 blind hole, 1-3 interior threaded hole, blind hole and interior threaded hole intercross arrangement, on described locking nut (5) circumferencial direction, process 1-3 light through hole, 1-3 internal thread through hole, light through hole and internal thread through hole intercross arrangement, the threaded front end of stretching screw (4) connects with the interior threaded hole on set screw nut (3) through the light through hole on locking nut (5), the rear end screw thread of pushing screw (6) open screws in the internal thread through hole on locking nut (5), front end withstands in the blind hole on set screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209156.1A CN102705341B (en) | 2012-06-25 | 2012-06-25 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209156.1A CN102705341B (en) | 2012-06-25 | 2012-06-25 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
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| Publication Number | Publication Date |
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| CN102705341A CN102705341A (en) | 2012-10-03 |
| CN102705341B true CN102705341B (en) | 2014-06-11 |
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| CN201210209156.1A Active CN102705341B (en) | 2012-06-25 | 2012-06-25 | Left-handed and right-handed rotation nut locking device for large-diameter shaft end |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867550B (en) * | 2012-12-11 | 2016-03-30 | 王昇辉 | Main shaft and nut do not get loose lockup device |
| CN103644208A (en) * | 2013-11-18 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Mechanism for connecting gear and drive shaft |
| DE102014002192A1 (en) * | 2014-02-11 | 2015-08-13 | Spieth-Maschinenelemente Gmbh & Co. Kg | machine element |
| CN104564989A (en) * | 2014-12-05 | 2015-04-29 | 本溪钢铁(集团)建设有限责任公司 | Bolt |
| CN107413947B (en) * | 2015-08-12 | 2019-06-07 | 重庆市合川区均恒金属加工厂 | Combined impact pressing mold |
| CN105257665B (en) * | 2015-09-29 | 2018-05-25 | 玉环胜友工具有限公司 | The anti-loose mechanical retention mechanism of the more screw pairs of self-tightening type |
| CN105257667B (en) * | 2015-09-29 | 2018-05-25 | 玉环胜友工具有限公司 | Anti-loose machinery retention mechanism |
| CN106837977A (en) * | 2017-02-21 | 2017-06-13 | 宝鸡石油机械有限责任公司 | Double nuts structure with automatic loose proof function |
| CN109158449A (en) * | 2018-09-27 | 2019-01-08 | 天津市中重科技工程有限公司 | Gantry straightener roller cover locking pull rod screw tightens anti-loose structure |
| CN113483002A (en) * | 2021-07-21 | 2021-10-08 | 屈波 | Novel locking fastening bolt structure |
| CN114992215A (en) * | 2022-07-19 | 2022-09-02 | 信阳航钛精密科技有限公司 | Lock catch fastening device for high-speed rail contact network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191020785A (en) * | 1909-09-06 | 1911-06-08 | Jules Levy-Maurice | A System for Preventing Nuts Working Loose or Rendering them Immovable. |
| EP0463337A1 (en) * | 1990-06-27 | 1992-01-02 | INA Wälzlager Schaeffler KG | Locking and counterlocking assembly |
| EP1050693A1 (en) * | 1999-05-05 | 2000-11-08 | Asea Brown Boveri AG | Push rod for turbine housing |
| CN2577031Y (en) * | 2002-11-11 | 2003-10-01 | 莱芜钢铁集团有限公司 | Trapezoidal left-right-hand check bolt |
| CN202851593U (en) * | 2012-06-25 | 2013-04-03 | 中国十七冶集团有限公司 | Large-diameter shaft end left-right-screwing nut looseness-prevention device |
-
2012
- 2012-06-25 CN CN201210209156.1A patent/CN102705341B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191020785A (en) * | 1909-09-06 | 1911-06-08 | Jules Levy-Maurice | A System for Preventing Nuts Working Loose or Rendering them Immovable. |
| EP0463337A1 (en) * | 1990-06-27 | 1992-01-02 | INA Wälzlager Schaeffler KG | Locking and counterlocking assembly |
| EP1050693A1 (en) * | 1999-05-05 | 2000-11-08 | Asea Brown Boveri AG | Push rod for turbine housing |
| CN2577031Y (en) * | 2002-11-11 | 2003-10-01 | 莱芜钢铁集团有限公司 | Trapezoidal left-right-hand check bolt |
| CN202851593U (en) * | 2012-06-25 | 2013-04-03 | 中国十七冶集团有限公司 | Large-diameter shaft end left-right-screwing nut looseness-prevention device |
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| CN102705341A (en) | 2012-10-03 |
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