CN203532475U - Nut of grooving anti-loose bolt and nut fastening connection device - Google Patents
Nut of grooving anti-loose bolt and nut fastening connection device Download PDFInfo
- Publication number
- CN203532475U CN203532475U CN201320670413.1U CN201320670413U CN203532475U CN 203532475 U CN203532475 U CN 203532475U CN 201320670413 U CN201320670413 U CN 201320670413U CN 203532475 U CN203532475 U CN 203532475U
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- nut
- bolt
- nut body
- fastening
- threaded
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Abstract
A nut of a grooving anti-loose bolt and nut fastening connection device comprises a nut body. The nut body is of a cylinder structure with threaded holes formed in the middle in the axial direction, at least two threaded through holes are formed in the nut body in the axial direction and are evenly arranged in the circumferential direction of a center line of the nut body, and a puller bolt is in threaded connection with the inside of each threaded through hole. A groove close to the heads of the puller bolts is formed in the nut body in the radial direction, a threaded blind hole vertically penetrating the groove is formed in the nut body in the axial direction, and a fastening screw is in threaded connection with the inside of the threaded blind hole. The nut is scientific in principle, simple in structure, convenient to use, convenient to operate, wide in use aspect and capable of being used repeatedly, effectively reduces labor intensity of workers, and saves installation time. The nut is unique in fastening mode and can keep the tightening state even under strong shock, high temperature and high pressure. Looseness, releasing or stripping of common bolts are avoided.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, relates in particular to a kind of nut of the anti-loosing type bolt and nut fastening-connecting device of slotting.
Background technique
The larger bolt and nut of employing on main equipment or between larger parts connects, in disassembly process, often there is tightening and dismantling difficult situation, in the situation that particularly installing space is very little, big nut need to be equipped with large spanner, and common big nut is just more not easy to installation and removal, and the common locking measure of big nut is simultaneously generally to use two big nut series connection compression fit, this can play locking object, but installs more bothersome.In addition, in the situation that nuts and bolt gets rusty, just can not normally dismantle, can only nut be destroyed just and can disassemble link with cutting machine, so not only increase workman's labor intensity but also caused the waste of nut.
Model utility content
The utility model is in order to solve deficiency of the prior art, provides that a kind of anti-loosing effect is good, easy to operate, reliability is strong, the nut of easy-to-mount fluting anti-loosing type bolt and nut fastening-connecting device.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: the nut of fluting anti-loosing type bolt and nut fastening-connecting device, comprise nut body, described nut body is the cylindrical structure that middle part axially offers tapped hole, nut body offers at least two tapped through holes vertically, all tapped through holes are circumferentially evenly arranged along nut body center line, and puller bolt has all been threaded in each tapped through hole; Nut body radially offers the groove that closes on puller bolt head, groove along nut body radially the outer contour of disc direction be the major arc that radius equates with nut body exradius, threaded body is axially arranged with the vertical tapped blind hole through groove, tapped blind hole internal thread is connected with fastening screw trip bolt, and fastening screw trip bolt head and puller bolt head are positioned at the same end face of nut body.
Described puller bolt is plain bolt or Self-locking bolt.
Described puller bolt upper sleeve through has at the head of puller bolt and the packing ring between nut body end face.
Described tapped blind hole is provided with one, and the center line of this tapped blind hole is positioned on the symmetry plane of Vertical direction of major arc shape groove.
Adopt technique scheme, fluting anti-loosing type bolt and nut fastening-connecting device also comprises and is located in the connecting bolt in mounting hole between link, connecting bolt upper sleeve through has the pad contacting with link, nut body is threaded on connecting bolt, the inner of puller bolt and the press fit of gasket surface top.
Fluting anti-loosing type bolt and nut fastening-connecting device when work is used, first by connecting bolt through in the mounting hole between link, then nut body is screwed on connecting bolt, until compress gasket stops turn.Re-use torque wrench with 30～50% torsion pretensions of required torque wherein 2～4 be the puller bolts that 90 degree or 180 degree (during 10 screws) are arranged.In this way, progressively the whole puller bolt on fastening nut body, increases progressively moment of torsion and progressively reduces, and the number of times that rotation screws is more, and the precision of installation will be higher; Finally, torsion, screws one by one on request.Only have when all puller bolts have all screwed, can screw successively.Otherwise necessary repeatedly rotation of interval, progressively screws.Finally use the fastening fastening screw trip bolt with locking effect of common wrench, fastening screw trip bolt can further be strained the nut body of groove both sides, thereby improves the fastening effect of most puller bolt, the more locking stability that increased to nut body and link.
When nut body and connecting bolt are coordinated, top press fit between many puller bolts and pad, forms reaction force, and pad has the effect of transmitting pretightening force and protection fastening piece.Along with tightening of puller bolt, from the pretightening force of puller bolt, connecting bolt is produced to impartial reaction fastening force, thereby play balanced high strength fastening effect.
Bolt hole on nut body in the middle of the utility model is all combined with many supporting puller bolts, by the acting in conjunction of many puller bolts, produce required total pretightening force, puller bolt is used for masterpiece above pad, thereby reach the object that reaction is fastenedly connected screw bolt and nut body, final fastening connection piece.Nut body, pad, puller bolt all adopt suitable heat treatment and process of surface treatment, thereby meet usage requirement.In addition, because puller bolt is less, also more laborsaving in the time of dismounting, the spanner of use is also less, is specially adapted to less installing space and carries out operation.
Principle science of the present utility model, simple in structure, easy to use, simple operation, user are wide, reusable, effectively reduce workman's labor intensity and save the installation time.Because the utility model fastening means is unique, even still can keep tension under macroseism, high temperature and high-pressure situations, there will not be the phenomenon that causes that plain bolt is loosening and thread off or overflow and buckle.Obviously fastening firm, pure tension force is fastening, installing space is little, pretightening force is accurate for the utility model mechanical advantage, also to mechanical connection, increased aesthetic feeling simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of nut body in the utility model;
Fig. 3 is A-A sectional view in Fig. 2.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the nut of fluting anti-loosing type bolt and nut fastening-connecting device of the present utility model, comprise nut body 4, nut body 4 is the cylindrical structure that middle part axially offers tapped hole 11, nut body 4 offers at least two tapped through holes 12 vertically, all tapped through holes 12 are circumferentially evenly arranged along nut body 4 center lines, the interior puller bolt 5 that has all been threaded of each tapped through hole 12.Puller bolt 5 can arrange 2 or be greater than 2 integer root.Nut body 4 radially offers the groove 7 that closes on puller bolt 5 heads, groove 8 along nut body 4 radially the outer contour of disc direction be the major arc that radius equates with nut body exradius, threaded body 4 is axially arranged with the vertical tapped blind hole 9 through groove 8, tapped blind hole 9 internal threads are connected with fastening screw trip bolt 10, and fastening screw trip bolt 10 heads and puller bolt 5 heads are positioned at the same end face of nut body 4.Tapped blind hole 9 is provided with one, and the center line of this tapped blind hole 9 is positioned on the symmetry plane of Vertical direction of major arc shape groove 8.
Fluting anti-loosing type bolt and nut fastening-connecting device also comprises and is located in the connecting bolt in mounting hole 2 between link 1, connecting bolt 2 upper sleeve throughs have the pad 3 contacting with link 1, nut body 4 is threaded on connecting bolt 2, the inner of puller bolt 5 and pad 3 surperficial top press fit.
Fluting anti-loosing type bolt and nut fastening-connecting device when work is used, first by connecting bolt 2 through in the mounting hole between link 1, then nut body 4 is screwed on connecting bolt 2, until compress gasket 3 stops turn.Re-use torque wrench 7 with 30～50% torsion pretensions of required torque wherein 2～4 be the puller bolts 5 that 90 degree or 180 degree (during 10 screws) are arranged.In this way, progressively the whole puller bolt 5 on fastening nut body 4, increases progressively moment of torsion and progressively reduces, and the number of times that rotation screws is more, and the precision of installation will be higher; Then torsion on request, screws one by one.Only have when all puller bolts 5 have all screwed, can screw successively.Otherwise necessary repeatedly rotation of interval, progressively screws.Finally use the fastening fastening screw trip bolt 10 with locking effect of common wrench, fastening screw trip bolt 10 can further be strained the nut body 4 of groove 9 both sides, thereby improve the fastening effect of most puller bolt 5, the more locking stability that increased to nut body 4 and link 1.
When nut body 4 and connecting bolt 2 coordinated, top press fit between many puller bolts 5 and pad 3, forms reaction force, and pad 3 has the effect of transmitting pretightening force and protection fastening piece.Along with tightening of puller bolt 5, from the pretightening force of puller bolt 5, connecting bolt 2 is produced to impartial reaction fastening force, thereby play balanced high strength fastening effect.
Claims (4)
1. the nut of fluting anti-loosing type bolt and nut fastening-connecting device, comprise nut body, it is characterized in that: described nut body is the cylindrical structure that middle part axially offers tapped hole, nut body offers at least two tapped through holes vertically, all tapped through holes are circumferentially evenly arranged along nut body center line, and puller bolt has all been threaded in each tapped through hole; Nut body radially offers the groove that closes on puller bolt head, groove along nut body radially the outer contour of disc direction be the major arc that radius equates with nut body exradius, threaded body is axially arranged with the vertical tapped blind hole through groove, tapped blind hole internal thread is connected with fastening screw trip bolt, and fastening screw trip bolt head and puller bolt head are positioned at the same end face of nut body.
2. the nut of fluting anti-loosing type bolt and nut fastening-connecting device according to claim 1, is characterized in that: described puller bolt is plain bolt or Self-locking bolt.
3. the nut of fluting anti-loosing type bolt and nut fastening-connecting device according to claim 1 and 2, is characterized in that: described puller bolt upper sleeve through has at the head of puller bolt and the packing ring between nut body end face.
4. the nut of fluting anti-loosing type bolt and nut fastening-connecting device according to claim 1 and 2, is characterized in that: described tapped blind hole is provided with one, and the center line of this tapped blind hole is positioned on the symmetry plane of Vertical direction of major arc shape groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670413.1U CN203532475U (en) | 2013-10-29 | 2013-10-29 | Nut of grooving anti-loose bolt and nut fastening connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670413.1U CN203532475U (en) | 2013-10-29 | 2013-10-29 | Nut of grooving anti-loose bolt and nut fastening connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532475U true CN203532475U (en) | 2014-04-09 |
Family
ID=50418688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320670413.1U Expired - Fee Related CN203532475U (en) | 2013-10-29 | 2013-10-29 | Nut of grooving anti-loose bolt and nut fastening connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805122A (en) * | 2014-12-30 | 2016-07-27 | 上海艾仲机电科技有限公司 | Super bolt |
| CN106180876A (en) * | 2016-08-31 | 2016-12-07 | 安徽安凯福田曙光车桥有限公司 | Lock nut of main speed reducer fluting pressure clamp |
| CN113606237A (en) * | 2021-07-27 | 2021-11-05 | 燕山大学 | Slotted nut structure and nut anti-loosening method adopting screw jacking |
-
2013
- 2013-10-29 CN CN201320670413.1U patent/CN203532475U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805122A (en) * | 2014-12-30 | 2016-07-27 | 上海艾仲机电科技有限公司 | Super bolt |
| CN106180876A (en) * | 2016-08-31 | 2016-12-07 | 安徽安凯福田曙光车桥有限公司 | Lock nut of main speed reducer fluting pressure clamp |
| CN106180876B (en) * | 2016-08-31 | 2018-02-02 | 安徽安凯福田曙光车桥有限公司 | Lock nut of main speed reducer fluting pressure clamp |
| CN113606237A (en) * | 2021-07-27 | 2021-11-05 | 燕山大学 | Slotted nut structure and nut anti-loosening method adopting screw jacking |
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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: 20140409 Termination date: 20161029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |