CN202646309U - Shoving bolt left-screwing and right-screwing locking device arranged at large diameter shaft end with internal thread - Google Patents
Shoving bolt left-screwing and right-screwing locking device arranged at large diameter shaft end with internal thread Download PDFInfo
- Publication number
- CN202646309U CN202646309U CN 201220297303 CN201220297303U CN202646309U CN 202646309 U CN202646309 U CN 202646309U CN 201220297303 CN201220297303 CN 201220297303 CN 201220297303 U CN201220297303 U CN 201220297303U CN 202646309 U CN202646309 U CN 202646309U
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- China
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- internal thread
- locking device
- screw
- lock bolt
- screwing
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Abstract
The utility model discloses a shoving bolt left-screwing and right-screwing locking device arranged at a large diameter shaft end with an internal thread. The shoving bolt left-screwing and right-screwing locking device arranged at the large diameter shaft end with the internal thread comprises a large diameter shaft rod (1), a clamped body (2) and a locking device. An external thread section G and an internal thread section H are placed at the end portion of the large diameter shaft rod (1). The locking device comprises a hold-down nut (3), a shoving bolt (4) and a locking bolt (5). The hold-down nut (3) is tightly placed on the external thread section G in screwing mode, the locking bolt (5) is arranged on the internal thread section H in screwing mode, and the space between the hold-down nut (3) and the locking bolt (5) is 0.5 millimeters to 20 millimeters. The hold-down nut (3) and the locking bolt (5) are fixed in connection mode through the shoving bolt (4). The shoving bolt left-screwing and right-screwing locking device arranged at the large diameter shaft end with the internal thread is suitable for tightening the 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 with internal thread and is provided with the left-right rotary locking device of pushing screw open.
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, not yet occur a kind of reusable major diameter axle head with internal thread on the market and be provided with the left-right rotary locking device of pushing screw open.
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 with internal thread to be provided with the left-right rotary locking device of pushing screw open.
Major diameter axle head with internal thread of the present utility model is provided with the left-right rotary locking device of pushing screw open, comprise major diameter axostylus axostyle, clamped body and locking device, described major diameter axle end is provided with outside thread G section and internal thread H section, described locking device by set screw nut, push screw open, lock bolt forms, described set screw nut is tightened on the G section, lock bolt screws the section at H, set screw nut and lock bolt spacing 0.5mm-20mm, described screw attachment set screw nut and the lock bolt pushed open.
Described G section is dextrorotation, and the H section is left-handed, and to be that dextrorotation is upper left screw off set screw nut, and lock bolt is left-handed upper right screwing off.
Described G section is left-handed, and the H section is dextrorotation, and set screw nut is left-handed upper right screwing off, and to be that dextrorotation is upper left screw off lock bolt.
Described set screw nut and lock bolt spacing 5mm-10mm.
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 internal thread through hole of processing on the described lock bolt circumferencial direction, push screw rear end screw thread open and screw in the internal thread through hole on lock bolt, 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; (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 internal 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 I-I revolved view of Fig. 3;
Fig. 5 is the structural representation of lock bolt;
Fig. 6 is the J-J revolved view of Fig. 5;
Among the figure: major diameter axostylus axostyle 1, clamped body 2, set screw nut 3, push screw 4, lock bolt 5 open.
Embodiment
Described major diameter axostylus axostyle 1 end is provided with outside thread G section and internal thread H section, described G section is dextrorotation, the H section is left-handed, set screw nut 3 screws off for dextrorotation is upper left, lock bolt 5 is left-handed upper right screwing off, described locking device is by set screw nut 3, push screw 4 open, lock bolt 5 forms, there is screw thread the rear end of pushing screw 4 open, front end is without screw thread, 2 blind holes of processing on described set screw nut 3 circumferencial directions, 2 internal thread through hole of processing on described lock bolt 5 circumferencial directions are pushed screw 4 rear end screw threads open and are screwed in the internal thread through hole on lock bolt 5, front end withstands in the blind hole on the set screw nut 3, and described set screw nut 3 is 10mm with lock bolt 5 spacings.
Like this when mechanical movement, because vibrations, set screw nut 3 loosening meeting will occur to anticlockwise, can drive lock bolt 5 also to anticlockwise owing to pushing the friction of the generation of screw 4 open, at this moment because the left-handed generation of lock bolt 5 oppositely tightens up power, will play the effect of tightening up, thereby well prevent the loosening of nut; And because lock bolt 5 circumferencial directions are provided with internal thread through hole, and there is screw thread the rear end of pushing screw 4 open, well like this having guaranteed that set screw nut 3 and lock bolt 5 spacings are constant, pretightening force is also constant, has better prevented the loosening of nut; Set screw nut 3 has certain spacing with lock bolt 5, has avoided direct contact, prolongs the service time of nut; To the device that the major diameter axle head need to be tightened, be convenient to install.
Described major diameter axostylus axostyle 1 end is provided with outside thread G section and internal thread H section, described G section is left-handed, the H section is dextrorotation, set screw nut 3 is left-handed upper right screwing off, lock bolt 5 screws off for dextrorotation is upper left, described locking device is by set screw nut 3, push screw 4 open, lock bolt 5 forms, there is screw thread the rear end of pushing screw 4 open, front end is without screw thread, 2 blind holes of processing on described set screw nut 3 circumferencial directions, 2 internal thread through hole of processing on described lock bolt 5 circumferencial directions are pushed screw 4 rear end screw threads open and are screwed in the internal thread through hole on lock bolt 5, front end withstands in the blind hole on the set screw nut 3, and described set screw nut 3 is 5mm with lock bolt 5 spacings.
Claims (5)
1. the major diameter axle head with internal thread is provided with the left-right rotary locking device of pushing screw open, comprise major diameter axostylus axostyle (1), clamped body (2) and locking device, it is characterized in that, described major diameter axostylus axostyle (1) end is provided with outside thread G section and internal thread H section, described locking device is by set screw nut (3), push screw (4) open, lock bolt (5) forms, described set screw nut (3) is tightened on the G section, lock bolt (5) screws the section at H, set screw nut (3) and lock bolt (5) spacing 0.5mm-20mm, described screw (4) be connected and fixed nut (3) and the lock bolt (5) pushed open.
2. the major diameter axle head with internal thread according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that, described G section is dextrorotation, and the H section is left-handed, set screw nut (3) screws off for dextrorotation is upper left, and lock bolt (5) is left-handed upper right screwing off.
3. the major diameter axle head with internal thread according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that, described G section is left-handed, and the H section is dextrorotation, set screw nut (3) is left-handed upper right screwing off, and lock bolt (5) screws off for dextrorotation is upper left.
4. the major diameter axle head with internal thread according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that described set screw nut (3) and lock bolt (5) spacing 5mm-10mm.
5. the major diameter axle head with internal thread according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that, there is screw thread described rear end of pushing screw (4) open, front end is without screw thread, 1-3 blind hole of processing on described set screw nut (3) circumferencial direction, 1-3 internal thread through hole of processing on described lock bolt (5) circumferencial direction, push screw (4) rear end screw thread open and screw in the internal thread through hole on lock bolt (5), front end withstands in the blind hole on the set screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297303 CN202646309U (en) | 2012-06-25 | 2012-06-25 | Shoving bolt left-screwing and right-screwing locking device arranged at large diameter shaft end with internal thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297303 CN202646309U (en) | 2012-06-25 | 2012-06-25 | Shoving bolt left-screwing and right-screwing locking device arranged at large diameter shaft end with internal thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646309U true CN202646309U (en) | 2013-01-02 |
Family
ID=47415424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297303 Expired - Lifetime CN202646309U (en) | 2012-06-25 | 2012-06-25 | Shoving bolt left-screwing and right-screwing locking device arranged at large diameter shaft end with internal thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244542A (en) * | 2013-05-10 | 2013-08-14 | 江苏永昊高强度螺栓有限公司 | Stably-connected bolt |
-
2012
- 2012-06-25 CN CN 201220297303 patent/CN202646309U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244542A (en) * | 2013-05-10 | 2013-08-14 | 江苏永昊高强度螺栓有限公司 | Stably-connected bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |