CN102962805A - Nut locking device - Google Patents
Nut locking device Download PDFInfo
- Publication number
- CN102962805A CN102962805A CN2012104729280A CN201210472928A CN102962805A CN 102962805 A CN102962805 A CN 102962805A CN 2012104729280 A CN2012104729280 A CN 2012104729280A CN 201210472928 A CN201210472928 A CN 201210472928A CN 102962805 A CN102962805 A CN 102962805A
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- CN
- China
- Prior art keywords
- sleeve
- nut
- top cover
- locking plate
- pretension bar
- 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.)
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention relates to a nut locking device. The nut locking device is characterized by comprising a pre-tightening rod, wherein the pre-tightening rod is tubular, a locking plate is fixedly arranged at one end of the pre-tightening rod, and a thread is machined at the inner wall of the other end of the pre-tightening rod; a supporting sheath is sleeved at one corresponding end of the locking plate outside the pre-tightening rod, an annular gap is formed on the supporting sheath, and a hydraulic nut is sleeved on the annular gap; a sleeve is sleeved at the thread corresponding end of the pre-tightening rod, and axial convex ribs are uniformly distributed at the end surface of the sleeve, corresponding to the thread of the pre-tightening rod; and an ejecting sleeve is sleeved at the exterior of the sleeve, a guide sleeve is arranged between the ejecting sleeve and the sleeve, one end of the ejecting sleeve is fixedly arranged on the supporting sheath, and multiple open holes uniformly arranged along the circumferential direction are arranged in the side wall of the ejecting sleeve. With the adoption of the nut locking device, a nut can be easily locked, the labor consumption is reduced, and the surface of the nut, the nut or the thread on a screw rod cannot be damaged.
Description
Technical field
The present invention relates to a kind of assembly tool, is for the device with the nut check on the screw rod specifically.
Background technology
At present, in the manufacturing field, the assembling between the equipment component all needs the screw rod and the nut that use, and little or nut is installed on the situation in the counterbore for some assembly spaces, and often common nut spanner can't stretch into wherein with nut check.A kind of improvement scheme has been proposed in the prior art, be exactly circumferentially to process a plurality of grooves on the end edge of nut, and designed simultaneously a kind of special spanner, the edge circumferentially is evenly equipped with a plurality of convex tendons on the end face of this spanner, groove on the nut and the convex tendon position on the spanner are corresponding, during use, only need in the groove on the insertion of the convex tendon on the spanner nut, rotating spanner again can be with nut check.But this locking mode is to rely on self strength of people to come control torque, when torque demand is larger, need to expend a large amount of labours, and slightly has firmly unevenly, will damage the nut surface, perhaps destroys the screw thread on nut, the screw rod.
Summary of the invention
The problem to be solved in the present invention provides a kind of nut locking device, adopts this device, can reduce labour's consumption easily with nut check, and can not damage the nut surface, the screw thread on nut or the screw rod.
For addressing the above problem, take following scheme:
The characteristics of nut locking device of the present invention are to comprise the pretension bar, and this pretension bar is tubulose, and the one end is fixed with locking plate, is processed with screw thread on the inwall of the other end, and the diameter of described locking plate is greater than the external diameter of pretension bar.Cover has support set on one end corresponding to the external locking plate of described pretension bar, has on the outer surface of support set and locking plate abutting end along circumferential annular breach, and overlapping on the annular breach has hydraulic nut.Described pretension bar has sleeve at the outside of screw thread corresponding end cover, and is gapped between sleeve and support set, and is evenly equipped with axial convex tendon on the sleeve end face corresponding with pretension bar screw thread.Described bush outer sleeve has top cover, between top cover and sleeve guide pin bushing is arranged, and guide pin bushing is fixed on the top cover by back-up ring, and is between guide pin bushing and sleeve and is slidingly matched.One end of described top cover is fixed on the support set, and the perforate that has a plurality of edges circumferentially to be evenly arranged on the sidewall of top cover.
Take such scheme, have the following advantages:
When using nut locking device of the present invention that nut is implemented the locking operation, at first the reeded nut of end face being contained in this device sleeve has on the end of convex tendon; Then nut is communicated with the pretension bar and is spun on the screw rod simultaneously, until nut is rotated in place; Suppress for described hydraulic nut by servicing unit again, make its axial elongation, drive the together traction screw elongation of locking plate and pretension bar, make screw rod have certain strain; Then, utilize aid to stretch in the perforate on the top cover, turnbarrel is so that nut check; At last, the hydraulic nut pressure release, so that screw rod restores to the original state, nut just has been locked on the screw rod.This locking process, need not the people is to expend a large amount of strength, just can with nut check, namely reduce labour's consumption; And the locking of nut is to utilize the deflection of screw rod to realize, it can not damage the nut surface, also can not destroy the screw thread on nut, the screw rod.
Description of drawings
Fig. 1 is the structural representation of nut locking device of the present invention;
Fig. 2 is the use view of nut locking device of the present invention.
The specific embodiment
As shown in Figure 1, nut locking device of the present invention comprises pretension bar 2, and this pretension bar 2 is tubulose, and the one end is fixed with locking plate 11, is processed with screw thread 7 on the inwall of the other end, and the diameter of described locking plate 11 is greater than the external diameter of pretension bar 2.Cover has support set 1 on one end of described pretension bar 2 external locking plate 11 correspondences, has along circumferential annular breach on the outer surface of support set 1 and locking plate 11 abutting ends, and cover has hydraulic nut 10 on the annular breach.Described pretension bar 2 has sleeve 3 at the outside of screw thread 7 corresponding end cover, and 1 of sleeve 3 and support set are gapped, and is evenly equipped with axial convex tendon 6 on end face corresponding to sleeve 3 and pretension bar screw thread 7.Described sleeve 3 overcoats have top cover 8, and 3 in top cover 8 and sleeve have guide pin bushing 5, and guide pin bushing 5 is fixed on the top cover 8 by back-up ring 4, and guide pin bushing 5 and 3 in sleeve are and are slidingly matched.One end of described top cover 8 is fixed on the support set 1, and the perforate 9 that has a plurality of edges circumferentially to be evenly arranged on the sidewall of top cover 8.
As shown in Figure 2, when using nut locking device of the present invention that nut 12 is implemented the locking operation, at first, the reeded nut 12 of end face is contained in this device sleeve 3 to be had on the end of convex tendon 6, and the groove on the nut 12 is corresponding with convex tendon 6 on the sleeve; Then, the pretension bar 2 that nut 12 is communicated with this device is spun on the screw rod simultaneously, until nut 12 is rotated in place, at this moment, the top cover 8 on this device should hold out against the outer surface at parts to be assembled; Suppress for described hydraulic nut 10 by servicing unit again, make its axial elongation, drive the together traction screw elongation of locking plate 11 and pretension bar 2, make screw rod have certain strain, at this moment the invariant position of top cover 8; Then, utilize aid to stretch in the perforate 9 on the top cover 8, turnbarrel 3 is so that nut 12 possesses certain locking amount; At last, hydraulic nut 10 pressure releases, so that screw rod restores to the original state, nut 12 just has been locked on the screw rod.Sleeve 3 is moved to support set 1 direction, so that the convex tendon 6 on it is extracted in the groove of nut 12, just this device can be taken off.
Claims (1)
1. nut locking device, it is characterized in that comprising pretension bar (2), this pretension bar (2) is tubulose, and the one end is fixed with locking plate (11), be processed with screw thread (7) on the inwall of the other end, the diameter of described locking plate (11) is greater than the external diameter of pretension bar (2); Cover has support set (1) on one end of the external locking plate of described pretension bar (2) (11) correspondence, has along circumferential annular breach on the outer surface of support set (1) and locking plate (11) abutting end, and cover has hydraulic nut (10) on the annular breach; Described pretension bar (2) has sleeve (3) at the outside of screw thread (7) corresponding end cover, and is gapped between sleeve (3) and support set (1), and is evenly equipped with axial convex tendon (6) on sleeve (3) end face corresponding with pretension bar screw thread (7); Described sleeve (3) overcoat has top cover (8), between top cover (8) and sleeve (3) guide pin bushing (5) is arranged, and guide pin bushing (5) is fixed on the top cover (8) by back-up ring (4), and is between guide pin bushing (5) and sleeve (3) and is slidingly matched; One end of described top cover (8) is fixed on the support set (1), and the perforate (9) that has a plurality of edges circumferentially to be evenly arranged on the sidewall of top cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104729280A CN102962805A (en) | 2012-11-21 | 2012-11-21 | Nut locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104729280A CN102962805A (en) | 2012-11-21 | 2012-11-21 | Nut locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102962805A true CN102962805A (en) | 2013-03-13 |
Family
ID=47793392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104729280A Pending CN102962805A (en) | 2012-11-21 | 2012-11-21 | Nut locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102962805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520798A (en) * | 2017-08-23 | 2017-12-29 | 重庆齿轮箱有限责任公司 | A kind of round nut pre-pressing structure and pre-tension method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB236371A (en) * | 1924-07-02 | 1925-07-09 | George Henry Thompson | Improvements in and relating to handles and bearings for rotating tools |
| US5197839A (en) * | 1991-08-08 | 1993-03-30 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Blind fastening apparatus |
| EP0389589B1 (en) * | 1988-08-23 | 1993-11-03 | DAWE, Peter H. | A method and device for accurately positioning and aligning a guide sleeve into a bore of a cylinder head |
| CN201031849Y (en) * | 2006-12-29 | 2008-03-05 | 上海第一机床厂有限公司 | Nut bolt locking apparatus |
| CN201692992U (en) * | 2010-01-21 | 2011-01-05 | 无锡市瑞尔机械有限公司 | Nut locking device for seamless steel tube sizing mill |
| CN102133581A (en) * | 2010-01-21 | 2011-07-27 | 无锡市瑞尔精密机械股份有限公司 | Nut locking device and method for seamless steel tube sizing mill |
| CN102705342A (en) * | 2012-05-31 | 2012-10-03 | 贵州精立航太科技有限公司 | Nut locking device |
-
2012
- 2012-11-21 CN CN2012104729280A patent/CN102962805A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB236371A (en) * | 1924-07-02 | 1925-07-09 | George Henry Thompson | Improvements in and relating to handles and bearings for rotating tools |
| EP0389589B1 (en) * | 1988-08-23 | 1993-11-03 | DAWE, Peter H. | A method and device for accurately positioning and aligning a guide sleeve into a bore of a cylinder head |
| US5197839A (en) * | 1991-08-08 | 1993-03-30 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Blind fastening apparatus |
| CN201031849Y (en) * | 2006-12-29 | 2008-03-05 | 上海第一机床厂有限公司 | Nut bolt locking apparatus |
| CN201692992U (en) * | 2010-01-21 | 2011-01-05 | 无锡市瑞尔机械有限公司 | Nut locking device for seamless steel tube sizing mill |
| CN102133581A (en) * | 2010-01-21 | 2011-07-27 | 无锡市瑞尔精密机械股份有限公司 | Nut locking device and method for seamless steel tube sizing mill |
| CN102705342A (en) * | 2012-05-31 | 2012-10-03 | 贵州精立航太科技有限公司 | Nut locking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520798A (en) * | 2017-08-23 | 2017-12-29 | 重庆齿轮箱有限责任公司 | A kind of round nut pre-pressing structure and pre-tension method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |