CN209195914U - Stop nut fastening assembly - Google Patents
Stop nut fastening assembly Download PDFInfo
- Publication number
- CN209195914U CN209195914U CN201821465265.9U CN201821465265U CN209195914U CN 209195914 U CN209195914 U CN 209195914U CN 201821465265 U CN201821465265 U CN 201821465265U CN 209195914 U CN209195914 U CN 209195914U
- Authority
- CN
- China
- Prior art keywords
- nut
- conehead
- bellmouth
- fastening assembly
- screw rod
- 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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- 241001149930 Protura <class> Species 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to stop nut technical fields, and in particular to a kind of stop nut fastening assembly.Stop nut fastening assembly, it include nut A part and nut B part, the nut A part is abutted by screw rod and compresses the workpiece for needing to fasten, the nut B part is fastened on nut A part by screw rod, it is characterized by: the screw hole side of the nut A part is bellmouth, described nut B part one end is provided with conehead, and the taper of the conehead and the taper of bellmouth are identical, the conehead is equipped with expansion slot, and the most narrow place aperture of the bellmouth is less than the diameter at conehead minimum.The utility model has the beneficial effects that: structure is simple, directly the extruding between nut A part and nut B part is conducted to screw rod by the setting of expansion slot, increases fastening dynamics, for this anti-loosen screw nut component once fastening never becoming loose, actual effect is fine, low in cost.
Description
Technical field
The utility model relates to stop nut technical fields, and in particular to a kind of stop nut fastening assembly.
Background technique
Currently, there are many structures of stop nut: screw thread apply binder, channel nut add split pin, double nut fastening and
The structures such as eccentricity nut.Eccentricity nut is due to being applied with preferable anti-loosing effect in the structure of these stop nuts
In the vehicles run at high speed.But there are still deficiencies for this eccentricity nut: requirement on machining accuracy is high, yield rate phase
It is commercially available expensive to lower, when processing request, which is not achieved, in Product Precision generates error, it is more difficult to guarantee nut in use not
Generation loosens, and therefore, there is still a need for need often to overhaul its aeration level in use.
Chinese patent CN201610897559.8 discloses a kind of multiple stop nut, including recessed nut and knurled nut, recessed
First screw thread is set in the cavity of nut, truncated cone shape cavity is set in recessed nut, and the inner wall of truncated cone shape cavity is smooth surface, convex
Screw hole is set in the cavity of nut, the second screw thread is set in screw hole, the truncated cone is arranged in knurled nut, and the truncated cone is matched with truncated cone shape cavity
It closes, eccentricity L is arranged in the center line of the truncated cone and the centreline space of screw hole, opens on the outer wall of truncated cone body sidewall thickest part
If deformation groove, blind hole and pin hole are opened up on recessed nut with the end face that knurled nut touches, the diameter of pin hole is less than blind hole
Diameter.But the nut structure of the patent is complicated, and manufacturing procedure is excessive, with high costs.
Mono- stop nut of Chinese patent CN01135493.3 is formed by a top nut and a lower nut.Lower nut is each other on this
It is meshed with eccentric manner, and so-called " wedging " effect is provided, unclamped each other with being reliably prevented them.The top nut has one
A or multiple lugs are with the lower end in contact with a tightening tool, such as a spanner, this lug or all lugs from the periphery of top nut
Portion projects are gone out, to provide the naked-eye observation to the rotation angle of nut.Requirement on machining accuracy of the patent to upper lower nut
Excessively high, yield rate is not high.
Usually general stop nut be all can be nonexpondable, but precisely due to can cross to be used for multiple times causes
Effect is often good without first time effect when reusing, and fastening effect gradually becomes after same stop nut repeatedly loads and unloads
Difference, fastening screw are all that first time Use Limitation fruit is optimal.
Utility model content
The utility model solves above-mentioned technical problem, and it is simple to provide a kind of structure, disposable, never becoming loose it is locking
Nut fastening assembly.
The technical solution of the utility model is as follows: stop nut fastening assembly, includes nut A part and nut B part, described
Nut A part abutted and compressed by screw rod and need the workpiece that fastens, the nut B part is fastened on nut A part by screw rod
On, the screw hole side of the nut A part is bellmouth, and described nut B part one end is provided with conehead, the cone of the conehead
It spends conehead identical as the taper of bellmouth, described and is equipped with expansion slot, and the most narrow place aperture of the bellmouth is less than conehead
Diameter at minimum.
The utility model is realized in this way first nut A part is fastened on the part for needing to fasten by screw rod, then will
Nut B part is fastened on nut A part, and the conehead of the taper hole of nut A part and nut B part, which is formed, during fastening squeezes, and is squeezed
The effect of pressure is that expansion slot is gradually reduced, and the internal screw thread of the conehead part of nut B part tightly bites the external screw thread on screw rod, fastening
Nut A part is caused to have the tendency that loosening outward if fastened zero has vibration or some internal stress after the completion, due to cone
The shape hole aperture Zhai Chu is less than the diameter at conehead minimum, i.e. there are also compressed space, nut A part loosens outward to be bound to conehead
Increase the extruding between taper hole and conehead, the internal stress F for forcing nut A part to loosen outward can be formed in taper hole and conehead and be squeezed
Power f, conehead, which also can generate screw rod to squeeze, forms frictional force, and the maximum value N and extruding force f of the frictional force are linearly related, are boring
Hole and conehead necessarily have the situation that N is greater than F in suitable range of taper, and because F is in a linear relationship with f, therefore N and F are also in line
Sexual intercourse, i.e. N increase as F increases, and N is greater than F, that is to say, that no matter the internal stress F for forcing nut A part to loosen outward
Have much, the maximum value N of frictional force is always greater than F's, that is to say, that nut A part can not loosen.
The utility model has the beneficial effects that: structure is simple, by the setting of expansion slot directly by nut A part and nut
Extruding between B part is conducted to screw rod, increases fastening dynamics, this anti-loosen screw nut component is once fastening never becoming loose, actual effect
Very well, low in cost.
Detailed description of the invention
Fig. 1 is the cross-sectional view of utility model.
Fig. 2 is the cross-sectional view of utility model when in use.
Fig. 3 is the force analysis figure of utility model in Fig. 2.
Specific embodiment
In conjunction with shown in Fig. 1 to Fig. 3, a stop nut fastening assembly includes nut A part 1 and nut B part 2, the spiral shell
Female A part 1 abuts by screw rod 3 and compresses the workpiece for needing to fasten, and the nut B part 2 is fastened on nut A part 1 by screw rod 3
On, the screw hole side of the nut A part 1 is bellmouth 11, and the nut A part 11 is equipped in one end of the side and collects mouth
12, be additionally provided on the nut B part 2 with nut A part 1 collect the cooperation of mouth 12 collect slot 21.The nut B part 2
One end is provided with conehead 22, and 23 strip of expansion slot is arranged on conehead 22, and the expansion slot 23 is along nut B part 23
Screw hole axially be arranged.The taper of the conehead 22 and the taper of bellmouth 11 are mutually all 1:2.2, and the bellmouth 11
Most narrow place aperture is less than the diameter at 22 minimum of conehead.
Referring to figs. 1 and 2, it can be seen that collect mouth 12 and collect the case where being used in conjunction with each other between slot 21, receive
Beam mouth 12 is with the annular structure drawn close to screw hole axle center in itself, and collecting slot 21 is the annular shape drawn close to screw hole axle center
Slot collects mouth 12 and is gradually packed the bending of slot 21, and squeeze into and collect in slot 21, make nut A during nut B part 2 pushes
Part 1 and nut B part 2 form inseparable structure, as shown in Fig. 2, receiving when being fitted close between conehead 22 and bellmouth 11
Beam mouth 12 is collecting in slot 21 also there are space, avoids conehead 22 and bellmouth 11 not in contact with collecting mouth 12 and be crowded with and collect
The case where slot 21.
The course of work of the present embodiment can be first tight by screw rod 3 by nut A part 1 in conjunction with the change procedure of Fig. 1 to Fig. 2
Gu being fastened on nut A part 1 on the part 4 for needing to fasten, then by nut B part 2, the cone of nut A part 1 during fastening
The conehead 22 of hole 11 and nut B part 2, which is formed, to be squeezed, and the effect of extruding is that expansion slot 23 is gradually reduced, and can be found out in Fig. 3 swollen
Swollen slot 23, which has been extruded, to become smaller, and the internal screw thread of 22 part of conehead of nut B part 2 tightly bites the external screw thread on screw rod 3, screw thread
It crosses intensively, is not being drawn in figure, fastening is completed, in fig. 3 it can be seen that the most narrow place aperture of bellmouth 11 is less than 22 minimum of conehead
There are also compressed spaces for the diameter at place, i.e. conehead 22, and nut A part 1 loosens outward certainly will increase between taper hole 11 and conehead 22
Extruding, the internal stress F for forcing nut A part 1 to loosen outward can form extruding force f in taper hole 11 and conehead 22, and conehead 22 is also
Screw rod 3 can be generated to squeeze and form frictional force, the maximum value N and extruding force f of the frictional force are linearly related, in taper hole 11 and conehead
22 in suitable range of taper, necessarily has the situation that N is greater than F, because F is in a linear relationship with f, therefore N and F is also linearly closed
System, i.e. N increases as F increases, and N is greater than F, that is to say, that no matter the internal stress F for forcing nut A part 1 to loosen outward has
Much, the maximum value N of frictional force is always greater than F's, that is to say, that nut A part 1 can not loosen.
The utility model has the beneficial effects that: structure is simple, by the setting of expansion slot directly by nut A part and nut
Extruding between B part is conducted to screw rod, increases fastening dynamics, this anti-loosen screw nut component is once fastening never becoming loose, actual effect
Very well, low in cost.
Claims (4)
1. stop nut fastening assembly, includes nut A part and nut B part, the nut A part is abutted and is compressed by screw rod
The workpiece for needing to fasten, the nut B part are fastened on nut A part by screw rod, it is characterised in that: the nut A part
Screw hole side be bellmouth, described nut B part one end is provided with conehead, the taper of the conehead and the taper of bellmouth
Identical, the conehead is equipped with expansion slot, and the most narrow place aperture of the bellmouth is less than the diameter at conehead minimum.
2. stop nut fastening assembly according to claim 1, it is characterised in that: the expansion slot strip setting exists
On conehead, the expansion slot is axially arranged along the screw hole of nut B part.
3. stop nut fastening assembly according to claim 1 or 2, it is characterised in that: the nut A part is in the side
One end be equipped with collect mouth, be additionally provided on the nut B part with nut A part collect mouth cooperation collect slot.
4. stop nut fastening assembly according to claim 3, it is characterised in that: the taper of the conehead and bellmouth
Range is in 1:1 ~ 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465265.9U CN209195914U (en) | 2018-09-07 | 2018-09-07 | Stop nut fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465265.9U CN209195914U (en) | 2018-09-07 | 2018-09-07 | Stop nut fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195914U true CN209195914U (en) | 2019-08-02 |
Family
ID=67405693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821465265.9U Expired - Fee Related CN209195914U (en) | 2018-09-07 | 2018-09-07 | Stop nut fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706602A (en) * | 2020-07-02 | 2020-09-25 | 浙江滨海汽车零部件股份有限公司 | High-strength anti-loosening nut |
-
2018
- 2018-09-07 CN CN201821465265.9U patent/CN209195914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706602A (en) * | 2020-07-02 | 2020-09-25 | 浙江滨海汽车零部件股份有限公司 | High-strength anti-loosening nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 |