CN2649852Y - Locknut - Google Patents
Locknut Download PDFInfo
- Publication number
- CN2649852Y CN2649852Y CN 200320110661 CN200320110661U CN2649852Y CN 2649852 Y CN2649852 Y CN 2649852Y CN 200320110661 CN200320110661 CN 200320110661 CN 200320110661 U CN200320110661 U CN 200320110661U CN 2649852 Y CN2649852 Y CN 2649852Y
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- CN
- China
- Prior art keywords
- nut
- screw
- thread
- cock
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a new locknut, which comprises a nut and a tightening bolt. The utility model is aimed to provide a nut with simple structure and ever-lasting loosening resistance. Threads are formed through drilling and tapping on the side of the nut. The nut is fixed on the bolt. Screwing the tightening bolt into the threads on the nut side will slightly damage the nut threads. Loosening resistance effect is improved by machinery loosening resistance and nut loosening resistance. The utility model is suitable for connection of large moving components that bear heavy load, vibration and impact and are not frequently disassembled.
Description
Technical field
The utility model belongs to the lock nut technical field, is specifically related to a kind of Cock screw that utilizes and destroys nut thread, increases the nut that frictional force plays anti-loosing effect.
Background technique
Under impact shock or varying load effect, the frictional force between screw pair may reduce or pop-off, will make after this phenomenon repeatedly repeats to connect to become flexible.Under the bigger situation of high temperature or temperature variation, because thread connector and coupled 's material generation regression and stress relaxation, also can make pretightening force and frictional force in the connection reduce to cause to connect inefficacy gradually, get loose in case be threaded, can influence the normal operation of machine even cause serious accident, therefore be necessary the locking processing of double thread connection carrying out.Locking root problem is to prevent that screw pair from rotating when stand under load.Traditional anti-loose method such as pairs of anti-loose nut method, after utilizing double nut to tighten to the top effect, increase the frictional force on the scyewed joint, play anti-loosing effect.Make deficiency in this way be: weight, the volume of scyewed joint parts all increase, and be economical inadequately, and the locking power of impulse type can only be provided, and promptly under certain power effect, nut anti-looseness can catastrophic failure.
Summary of the invention
The utility model purpose is to provide a kind of simple in structure, lasting novel lock nut.
The utility model is made up of nut 2 and Cock screw 6,7, and be achieved through the following technical solutions: form screw thread 3,4 in nut 2 adjacent bi-side by drilling and tapping, nut 2 is fixed on the bolt 1, Cock screw 6,7 is screwed into nut side screw thread 3,4 it is fixed.Form 3,4 o'clock bore position of screw thread in nut 2 adjacent bi-side by drilling and tapping and should be located at nut 2 lateral vertical on the mid point of bolt 1 direction.Nut 2 side screw threads 3,4 should differ the odd-multiple of 1/2 nut thread 5 in the position that is parallel to bolt 1 direction, two Cock screws 6,7 are screwed into, and a Cock screw 7 is squeezed at the bottom of nut thread 5 teeth, and another Cock screw 6 is squeezed in nut thread 5 crests.The front end of Cock screw 6,7 is processed into taper, nut thread 5 can be destroyed slightly after tightening.
The beneficial effects of the utility model are: simple in structure, being that machinery is locking combines with nut anti-looseness, and the locking power that is provided has endurance, and locking power can remain on certain numerical value within a certain period of time, and anti-loosing effect can catastrophic failure.
Description of drawings
Fig. 1: be outline drawing of the present utility model
Fig. 2: be I-I face sectional view of the present utility model
Fig. 3: be the partial enlarged drawing that Cock screw of the present utility model is screwed into nut thread
Screw thread 3,4 nut threads 5 Cock screws 6,7 that the 2 nut flank hole tapping of bolt 1 nut form among the figure
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
Can find out that by following experiment anti-loosing effect of the present utility model is good than pairs of anti-loose nut.
Measure double nut, the loosening power of novel lock nut of making respectively with load and weighing cell.The adjustable spanner active segment is fixed on the nut, sensor is withstood the spanner the other end and enforce and (use plank can increase lifting surface area, prevent that sensor from sliding), the data of reading from the digital display of weighing in the time of nut loosening are maximum locking power F.Known activity spanner brachium is L, and F*L is maximum locking moment laboratory data L=0.45m
The practical M10 Cock screw of double nut
Novel lock nut
F (just) 22.5kg 22.2kg
F (end) 54.5kg 93.3kg
F (just)-F (end) 32kg 71.1kg
By laboratory data as can be seen: be example with the novel lock nut that uses the M10 Cock screw, make the torque ratio that this novel lock nut anti-loosing effect lost efficacy make the moment of pairs of anti-loose nut effect inefficacy big 2.3 times, and the locking power that novel lock nut provides has endurance, under the effect in necessarily, locking power can remain on certain numerical value (will continue to destroy screw thread because this anti-loose method was lost efficacy) within a certain period of time.
Claims (4)
1, a kind of novel lock nut comprises nut 2 and Cock screw 6,7, it is characterized in that: the nut side forms screw thread 3,4 by drilling and tapping, and nut 2 is fixed on the bolt 1, Cock screw 6,7 is screwed into nut side screw thread 3,4 it is fixed.
2, novel lock nut according to claim 1 is characterized in that: the bore position when forming screw thread in nut 2 adjacent both sides by drilling and tapping should be located at the nut lateral vertical on the mid point of bolt 1 direction.
3, novel lock nut according to claim 1, it is characterized in that: nut 2 side screw threads 3,4, should differ the odd-multiple of 1/2 nut thread 5 in the position that is parallel to bolt 1 direction, with two Cock screws 6,7 are screwed into, and a Cock screw 7 is squeezed at the bottom of nut thread 5 teeth, and another Cock screw 6 is squeezed in nut thread 5 crests.
4, novel lock nut according to claim 1 is characterized in that: Cock screw 6,7 front ends are processed into taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110661 CN2649852Y (en) | 2003-11-05 | 2003-11-05 | Locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110661 CN2649852Y (en) | 2003-11-05 | 2003-11-05 | Locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649852Y true CN2649852Y (en) | 2004-10-20 |
Family
ID=34343838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110661 Expired - Fee Related CN2649852Y (en) | 2003-11-05 | 2003-11-05 | Locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649852Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286413B (en) * | 2007-02-02 | 2011-11-16 | 湖北盛佳电器设备有限公司 | Straight-through current transformer convenient for measuring voltage |
| CN102563255A (en) * | 2011-10-25 | 2012-07-11 | 上海泛华紧固系统有限公司 | Length-adjustable pipe thread union connection structure for anti-disassembling meter |
| CN103470668A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Compound annular spring with large compensation rate |
| CN105855001A (en) * | 2016-05-05 | 2016-08-17 | 中信重工机械股份有限公司 | Novel liner plate structure used for large autogenous mill |
| CN109676989A (en) * | 2019-01-30 | 2019-04-26 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press crankshaft-link rod clamp device |
| CN109773104A (en) * | 2019-01-30 | 2019-05-21 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press screw rod set clamp device and method |
| CN110259881A (en) * | 2019-06-17 | 2019-09-20 | 石家庄铁道大学 | A kind of dynamic vibration absorber |
-
2003
- 2003-11-05 CN CN 200320110661 patent/CN2649852Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286413B (en) * | 2007-02-02 | 2011-11-16 | 湖北盛佳电器设备有限公司 | Straight-through current transformer convenient for measuring voltage |
| CN102563255A (en) * | 2011-10-25 | 2012-07-11 | 上海泛华紧固系统有限公司 | Length-adjustable pipe thread union connection structure for anti-disassembling meter |
| CN103470668A (en) * | 2012-06-08 | 2013-12-25 | 中国核动力研究设计院 | Compound annular spring with large compensation rate |
| CN105855001A (en) * | 2016-05-05 | 2016-08-17 | 中信重工机械股份有限公司 | Novel liner plate structure used for large autogenous mill |
| CN109676989A (en) * | 2019-01-30 | 2019-04-26 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press crankshaft-link rod clamp device |
| CN109773104A (en) * | 2019-01-30 | 2019-05-21 | 荣成华东锻压机床股份有限公司 | A kind of mechanical press screw rod set clamp device and method |
| CN110259881A (en) * | 2019-06-17 | 2019-09-20 | 石家庄铁道大学 | A kind of dynamic vibration absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |