CN202756393U - Left-and-right turning locking device with tightening screw on major diameter shaft end - Google Patents
Left-and-right turning locking device with tightening screw on major diameter shaft end Download PDFInfo
- Publication number
- CN202756393U CN202756393U CN 201220297371 CN201220297371U CN202756393U CN 202756393 U CN202756393 U CN 202756393U CN 201220297371 CN201220297371 CN 201220297371 CN 201220297371 U CN201220297371 U CN 201220297371U CN 202756393 U CN202756393 U CN 202756393U
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- nut
- major diameter
- screw
- section
- locking
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Abstract
The utility model discloses a left-and-right turning locking device with a screw on a major diameter shaft end. The left-and-right turning locking device comprises a major diameter shaft rod (1), a clamped body (2), and a locking device. The end portion E section and the end portion F section of the major diameter shaft rod (1) are provided with left-and-right turning threads. The locking device is composed of a fixing nut (3), a tightening screw (4), and a locking nut (5), wherein the fixing nut (3) is screwed tightly on E section threads and the locking nut (5) is screwed on F section threads. Spacing between the fixing nut (3) and the locking nut (5) is from 0.5 millimeter to 20 millimeters. The tightening screw (4) is fixedly linked with the fixing nut (3) and the locking nut (5). The left-and-right turning locking device with the tightening screw on the major diameter shaft end is suitable for fastening of the major diameter shaft end.
Description
Technical field
The utility model relates to a kind of locking device, in particular, relates to the left-right rotary locking device that a kind of major diameter axle head is provided with stretching screw.
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, the left-right rotary locking device that a kind of reusable major diameter axle head is provided with stretching screw 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 provides a kind of major diameter axle head to be provided with the left-right rotary locking device of stretching screw.
Major diameter axle head of the present utility model is provided with the left-right rotary locking device of stretching screw, 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 is comprised of set screw nut, stretching screw, locking nut, 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.
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.
Described stretching screw front end has screw thread, the rear end is without screw thread, 1-3 interior threaded hole of processing on the described set screw nut circumferencial direction, 1-3 light through hole of processing on the described locking nut circumferencial direction, 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 beneficial effects of the utility model: (1) simple in structure, be easy to make, and only needs thread mill drilling and light through hole on nut; (2) practical, can reuse, and can well prevent mechanical shock and the loosening phenomenon that produces; (3) avoid mutual friction between nut, prolonged the service time of nut; (4) 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 sectional view that the major diameter axle end is provided with locking device;
Fig. 3 is the structural representation of set screw nut;
Fig. 4 is the A-A revolved view of Fig. 3;
Fig. 5 is the structural representation of locking nut;
Fig. 6 is the B-B revolved view of Fig. 5;
Among the figure: major diameter axostylus axostyle 1, clamped body 2, set screw nut 3, stretching screw 4, locking nut 5.
Embodiment
Described major diameter axostylus axostyle 1 end E section and F section 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, locking nut 5 forms, the front end of stretching screw 4 has screw thread, the rear end is without screw thread, 2 interior threaded holes of processing on described set screw nut 3 circumferencial directions, 2 light through holes of processing on described locking nut 5 circumferencial directions, the light through hole that stretching screw 4 front ends pass on the locking nut 5 connects with interior threaded hole on the set screw nut 3, and described set screw nut 3 and locking nut 5 spacings are 10mm.
Like this when mechanical movement, because vibrations, set screw nut 3 loosening meeting will occur to anticlockwise, because the friction that stretching screw 4 produces can drive locking nut 5 also to anticlockwise, at this moment because the left-handed generation of locking nut 5 oppositely tightens up power, will play the effect of tightening up, thereby well prevent the loosening of nut; Because set screw nut 3 has certain distance with locking nut 5, avoided direct contact, and pretightening force also is controlled; To the device that the major diameter axle head need to be tightened, also be convenient to install.
The end left-right rotary screw thread of described major diameter axostylus axostyle 1 is set to the step type of E section and F section, 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, locking nut 5 forms, the front end of stretching screw 4 has screw thread, the rear end is without screw thread, 2 interior threaded holes of processing on described set screw nut 3 circumferencial directions, 2 light through holes of processing on described locking nut 5 circumferencial directions, the light through hole that stretching screw 4 front ends pass on the locking nut 5 connects with interior threaded hole on the set screw nut 3, and described set screw nut 3 and locking nut 5 spacings are 5mm.
Claims (5)
1. a major diameter axle head is provided with the left-right rotary locking device of stretching screw, comprise major diameter axostylus axostyle (1), clamped body (2) and locking device, it is characterized in that, described major diameter axostylus axostyle (1) end E section and F section are provided with the left-right rotary screw thread, described locking device is by set screw nut (3), stretching screw (4), 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 are 0.5mm-20mm, described stretching screw (4) be connected and fixed nut (3) and locking nut (5).
2. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of stretching screw, 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 according to claim 1 is provided with the left-right rotary locking device of stretching screw, 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 according to claim 1 is provided with the left-right rotary nut anti-looseness device of stretching screw, it is characterized in that, described set screw nut (3) is 5mm-10mm with locking nut (5) spacing.
5. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of stretching screw, it is characterized in that, described stretching screw (4) front end has screw thread, the rear end is without screw thread, 1-3 interior threaded hole of processing on described set screw nut (3) circumferencial direction, 1-3 light through hole of processing on described locking nut (5) circumferencial direction, the light through hole that the front end of stretching screw (4) passes on the locking nut (5) connects with interior threaded hole on the set screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297371 CN202756393U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with tightening screw on major diameter shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297371 CN202756393U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with tightening screw on major diameter shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756393U true CN202756393U (en) | 2013-02-27 |
Family
ID=47735577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297371 Expired - Fee Related CN202756393U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with tightening screw on major diameter shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756393U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533924A (en) * | 2015-01-15 | 2015-04-22 | 中国核动力研究设计院 | Fastening structure suitable for movable floating nuclear power plant platforms |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| CN112030783A (en) * | 2020-08-21 | 2020-12-04 | 盐城工学院 | Bridge reinforced structure |
-
2012
- 2012-06-25 CN CN 201220297371 patent/CN202756393U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533924A (en) * | 2015-01-15 | 2015-04-22 | 中国核动力研究设计院 | Fastening structure suitable for movable floating nuclear power plant platforms |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| CN112030783A (en) * | 2020-08-21 | 2020-12-04 | 盐城工学院 | Bridge reinforced structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |