CN201705782U - Anti-looseness trough-shaped nut - Google Patents
Anti-looseness trough-shaped nut Download PDFInfo
- Publication number
- CN201705782U CN201705782U CN 201020168796 CN201020168796U CN201705782U CN 201705782 U CN201705782 U CN 201705782U CN 201020168796 CN201020168796 CN 201020168796 CN 201020168796 U CN201020168796 U CN 201020168796U CN 201705782 U CN201705782 U CN 201705782U
- Authority
- CN
- China
- Prior art keywords
- nut
- looseness
- hole
- stepped hole
- trough
- 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
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to an anti-looseness trough-shaped nut. An anti-looseness trough structure used for being matched with a cotter pin to prevent the nut from looseness is arranged at one end of the nut; a center hole of the nut adopts a stepped hole, a flaring opening of the stepped hole is towards the end where anti-looseness trough structure of the nut is arranged; threads are formed at a necking segment of the stepped hole; the flaring segment of the stepped hole adopts an unthreaded hole, and the anti-looseness trough structure is arranged at the flaring segment of the stepped hole. Since the threaded hole of the utility model adopts a stepped hole with the flaring opening towards the end where anti-looseness trough structure of the nut is arranged, the flaring segment of the stepped hole adopts an unthreaded hole, the anti-looseness trough structure is arranged at the unthreaded hole segment of the stepped hole, no bur can be generated on threads during anti-looseness trough processing, thread stripping can be avoided, and the threaded connection is guaranteed to be secure and reliable.
Description
Technical field
The utility model relates to a kind of locking grooved nut.
Background technique
Present being used for can locking grooved nut generally be at one end to offer antiratchetting groove, after nut and bolt screw, pass the cotter pin that is provided with on the bolt end with cotter pin the hole is set, make the cotter pin opening end stretch out beyond the antiratchetting groove of nut and the opening of cotter pin is opened, and then the locking thread between realization nut and the bolt, this anti-loose structure is that machinery is locking, reliable operation, use more extensively in all kinds of engineering goods, the wheel limit locking mechanism of steering axle of automobile is exactly this anti-loose structure.General uniform six flutings of existing grooved nut, degree of regulation is 1/6 of a pitch, degree of regulation is not high.Concerning the locking mechanism of steering axle of automobile wheel limit, when the grooved nut screwing clamping when the nominal position need be locked, need continue to tighten or unscrew the fluting that makes nut with spool on the hole corresponding, insert cotter pin then.If the degree of regulation of grooved nut is not high, then can cause bearing pre-fastening not enough or excessive.Pretightening force causes the bearing play excessive inadequately, and the component unbalance stress influences roadability; The excessive bearing play that then causes of pretightening force is too small, increases the fretting wear of bearing, and the bearing working temperature rises, and makes bearing failure easily.
In addition, existing grooved nut generally is to attack internal thread earlier adding man-hour, mills antiratchetting groove then, can make antiratchetting groove and screw thread junction have burr like this.The burr at this place generally is difficult to remove, and burr is easy to damaged screw in the process that nut is fastened on the bolt, causes stripped thread, causes the Safety performance of screw connection structure to descend.
Summary of the invention
The purpose of this utility model is to provide a kind of locking grooved nut, to solve in the prior art because the burr damaged screw of grooved lock nut, the problem that causes the Safety performance that is threaded to descend.
For achieving the above object, the utility model adopts following technological scheme: a kind of locking grooved nut, one end of this nut is provided with and is used for cooperating with cotter pin the antiratchetting groove structure that prevents nut loosening, the center hole of described nut is enlarging is provided with end towards the antiratchetting groove structure of nut a shoulder hole, the reducing section of described shoulder hole is provided with screw thread, the flared section of shoulder hole is a unthreaded hole, and the antiratchetting groove structure is arranged at the flared section of shoulder hole.
Described antiratchetting groove structure comprises 12 flutings that radially are distributed on the locking grooved nut end face.
Center hole of the present utility model is enlarging is provided with end towards the antiratchetting groove structure of nut a shoulder hole, the flared section of shoulder hole is a unthreaded hole, the antiratchetting groove structure is arranged on the unthreaded hole section of shoulder hole, like this, when the processing antiratchetting groove, just can not produce burr at the screw thread place, avoided the screw thread stripped thread, make be threaded safe and reliable.
Antiratchetting groove structure of the present utility model is 12 flutings that are distributed on the locking grooved nut end face, the degree of regulation height of the tightness that is threaded.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the sectional view of the plan view of Fig. 1;
Fig. 4 is a stereogram of the present utility model;
Fig. 5 is the embodiment of the utility model in the locking mechanism of steering axle of automobile wheel limit.
Embodiment
In Fig. 1 ~ 4, an a kind of end of locking grooved nut offers 12 flutings 8 along the nut end face radial equipartition, fluting 8 is used for cooperating with cotter pin the bolt looseness that prevents nut with respect to being mated, the center hole of nut is a shoulder hole, the enlarging of shoulder hole is provided with end towards the fluting of nut, the reducing section 7 of shoulder hole is provided with screw thread, and flared section 9 is a unthreaded hole, and fluting 8 is arranged on the flared section 9.
In Fig. 5, locking grooved nut is applied to the embodiment of steering axle of automobile wheel limit locking mechanism, be rotatably equipped with wheel hub 6 by tapered roller bearing 5 on one end of knuckle 2, the termination that knuckle 2 is provided with an end of wheel hub 6 is provided with screw thread and is installed with locking grooved nut 4 by screw thread, and the end face of locking grooved nut 4 forms block with tapered roller bearing 5 and cooperates.Locking grooved nut is the locking grooved nut in above-mentioned Fig. 1 ~ 4.When locking grooved nut 4 is screwed to the nominal position, only need it is continued to tighten or unscrew less angle (being 15 ° to the maximum), the cotter pin that is provided with on antiratchetting groove of locking grooved nut 4 and knuckle 2 terminations can be provided with the hole correspondence, inserting cotter pin 3 then can the locking wheel limit.Because the adjustment angle that locking grooved nut is screwed to behind the nominal position is little, the pretightening force that therefore can guarantee bearing is unlikely to excessive and also is unlikely to not enough, and component are stressed, and evenly roadability is good, and bearing is difficult for losing efficacy.Because the anti-easing nut 4 of groove does not have machining screw at the fluting place, therefore fluting and screw thread junction do not have burr, avoid the screw thread stripped thread, make locking mechanism safe and reliable.
Claims (2)
1. locking grooved nut, one end of this nut is provided with and is used for cooperating with cotter pin the antiratchetting groove structure that prevents nut loosening, it is characterized in that: the center hole of described nut is enlarging is provided with end towards the antiratchetting groove structure of nut a shoulder hole, the reducing section of described shoulder hole is provided with screw thread, the flared section of shoulder hole is a unthreaded hole, and the antiratchetting groove structure is arranged at the flared section of shoulder hole.
2. locking grooved nut according to claim 1 is characterized in that: described antiratchetting groove structure comprises 12 flutings that radially are distributed on the locking grooved nut end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020168796 CN201705782U (en) | 2010-04-23 | 2010-04-23 | Anti-looseness trough-shaped nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020168796 CN201705782U (en) | 2010-04-23 | 2010-04-23 | Anti-looseness trough-shaped nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705782U true CN201705782U (en) | 2011-01-12 |
Family
ID=43442938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020168796 Expired - Fee Related CN201705782U (en) | 2010-04-23 | 2010-04-23 | Anti-looseness trough-shaped nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705782U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619844A (en) * | 2012-03-28 | 2012-08-01 | 上海市电力公司 | Locking device with set spring axial force |
| CN102927110A (en) * | 2012-11-14 | 2013-02-13 | 广东富华铸锻有限公司 | Axle end nut for car |
| CN105715653A (en) * | 2016-04-26 | 2016-06-29 | 中国第一汽车股份有限公司 | Spacing type anti-loosing bolt assembly |
| CN107255113A (en) * | 2017-08-04 | 2017-10-17 | 海盐联众紧固件有限公司 | A kind of automobile modified form stop nut |
-
2010
- 2010-04-23 CN CN 201020168796 patent/CN201705782U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619844A (en) * | 2012-03-28 | 2012-08-01 | 上海市电力公司 | Locking device with set spring axial force |
| CN102927110A (en) * | 2012-11-14 | 2013-02-13 | 广东富华铸锻有限公司 | Axle end nut for car |
| CN102927110B (en) * | 2012-11-14 | 2015-03-25 | 广东富华铸锻有限公司 | Axle end nut for car |
| CN105715653A (en) * | 2016-04-26 | 2016-06-29 | 中国第一汽车股份有限公司 | Spacing type anti-loosing bolt assembly |
| CN107255113A (en) * | 2017-08-04 | 2017-10-17 | 海盐联众紧固件有限公司 | A kind of automobile modified form stop nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201705782U (en) | Anti-looseness trough-shaped nut | |
| EP2696085B1 (en) | Anti-seizing bolt | |
| CN103452995A (en) | Nut and mounting method thereof | |
| CN104141670A (en) | Anti-loose thread fastening structure | |
| CN206770366U (en) | A kind of swivel nut of locking key | |
| CN209083784U (en) | One kind is from torsion stop nut | |
| CN113187797B (en) | Reliable locknut for transmission line tower and electric power fitting | |
| CN206458704U (en) | Stop nut | |
| CN103089785A (en) | Anti-loosening fastening device | |
| CN109595247B (en) | Self-locking check bolt and installation method thereof | |
| CN204003910U (en) | A kind of checknut fastening structure | |
| CN216278875U (en) | Anti-loosening fastener, threaded fastening kit and threaded fastening assembly | |
| CN206770373U (en) | Anti-theft nut component and anti-theft nut | |
| CN108895080A (en) | One kind is from torsion stop nut and processing, application method | |
| CN211901243U (en) | Locknut structure with screw pitch difference | |
| CN107339313A (en) | A kind of Novel threaded anti-loose structure | |
| CN203463459U (en) | Nut | |
| CN204628238U (en) | One is anti-unloads antitheft bolt device | |
| CN110925288B (en) | Quick and reliable locknut suit | |
| CN207647953U (en) | A kind of axis head nut | |
| CN111120494A (en) | Locknut structure with screw pitch difference | |
| CN207539161U (en) | One kind is suitable for large-scale dynamic equipment installation locknut and fixed structure | |
| CN111981021A (en) | Nut capable of preventing loosening | |
| CN202646313U (en) | Locking device for axle wheel-side of loader | |
| CN112128209A (en) | Upper locking type elastic conical locknut |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160423 |