CN110439911A - A kind of anti-conquassation flange face bolt - Google Patents
A kind of anti-conquassation flange face bolt Download PDFInfo
- Publication number
- CN110439911A CN110439911A CN201910634679.2A CN201910634679A CN110439911A CN 110439911 A CN110439911 A CN 110439911A CN 201910634679 A CN201910634679 A CN 201910634679A CN 110439911 A CN110439911 A CN 110439911A
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- China
- Prior art keywords
- flange portion
- flange
- annular groove
- bolt
- conquassation
- Prior art date
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Links
- 239000003292 glue Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 10
- 210000002421 cell wall Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005489 elastic deformation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A kind of anti-conquassation flange face bolt, belong to fastener areas, including bolt head (1), bolt shank (3) and the flange portion (2) being connected between the screw head (1) and the bolt shank (3), the one side of the flange portion (2) towards bolt shank (3) is flange portion bottom surface (21), the flange face bottom surface (21) is inner concave, it is downwardly projected at flange portion cylindrical surface (22) on the flange portion bottom surface (21), the flange portion cylindrical surface (22) is equipped with annular groove (23), radial distance (t1) of the radial depth (t2) of the annular groove (23) more than or equal to minimum point on flange portion bottom surface (21) to flange portion cylindrical surface (22).It will not be crushed, scrape connected piece surface, pressing force is stronger, is not easy to loosen.
Description
Technical field
The present invention relates to the bolt parts of fastener areas, and in particular to a kind of anti-conquassation flange face bolt.
Background technique
Flange face bolt is as a kind of the most commonly used fastener, using very extensive in industrial circle.GB/
A kind of hexagon flange bolt is described in T16674.1-2016, flange face is the inclined-plane of certain angle, and tilt angle is usual
It is reversed 0.25 ° -1.25 °.Bolt is in rundown process, and when flange face and connected piece surface start to contact, contact site is
Bolt flange face outer rim.With being gradually increased for screw-down torque, flange face is gradually varied to face contact, method by the line contact of outer rim
Blue face also starts flexible deformation, and final realization flange face is bonded with connected piece surface, and flange face angle becomes 0 °.While by
Bounce is produced in the flexible deformation of flange face, certain anti-loose effect can be played.When flange face starts flexible deformation,
Flange face and connected piece surface generate relative motion, and flange face outer can generate connected piece surface and scrape, will lead to by
Situations such as there is scraping even conquassation in connector surface, rubbing surface is uneven.
Summary of the invention
The purpose of the present invention is overcoming the problems, such as that existing flange face bolt easily scrapes, is crushed connected piece surface, one is provided
The anti-conquassation flange face bolt of kind, will not be crushed, and scrape connected piece surface, clamping force is stronger, is not easy to loosen.
In order to achieve the above object, technical scheme is as follows:
A kind of anti-conquassation flange face bolt, including bolt head, bolt shank and it is connected to the screw head and the spiral shell
Flange portion between bolt stem, the one side of the flange portion towards bolt shank are flange portion bottom surface, the flange face bottom surface
It for inner concave, is downwardly projected at flange portion cylindrical surface on the flange portion bottom surface, the flange portion cylindrical surface is equipped with ring
Shape slot, the radial depth of the annular groove be greater than or equal to minimum point on flange portion bottom surface to flange portion cylindrical surface radially away from
From.
On the radial depth of the annular groove and flange portion bottom surface minimum point to flange portion cylindrical surface radial distance ratio=
2:1~3:1.
The axial cross section of the annular groove is V-shaped or U-shaped.
The ratio etc. of protruding parts maximum axial height in the maximum axial open height of the annular groove and flange portion bottom surface
In 1:3~1:1.
Ratio=1:10 of the axial height of minimum point and flange portion thickness in the minimum point of the annular groove to flange portion bottom surface
~1:2.
The radial distance on minimum point to flange portion cylindrical surface is equal to 0.4mm~1.0mm on the flange portion bottom surface.
Ratio=1:50~1:10 of protruding parts maximum axial height and flange portion thickness on the flange portion bottom surface.
Elastic rubber or marine glue are filled in the annular groove.
Compared with prior art, the invention has the benefit that
1, annular groove is equipped in the present invention on flange portion cylindrical surface, the edge position of flange portion cylindrical body is divided by annular groove
Upper and lower two layers, at this moment, the lower layer position of annular groove then constitutes a cantilever by slot bottom to cylindrical surface edge, works as flange face
Minimum point elder generation and connected piece when bolt is threadedly coupled with connected piece, on the annular groove lower layer position of flange portion bottom surface
Surface contact, and presses to connected piece surface, when to be applied to moment of flexure caused by the active force of the minimum point big for flange face bolt
When the moment of flexure at annular groove lower layer position, the lower layer position of annular groove then starts to occur bending and deformation upwards, pushes flange portion bottom
The whole cell wall close to upside of the ring groove of minimum point and associated position, the open height of annular groove reduce on face, flange portion bottom
The contact area on face and connected piece surface increases, and the pressure that flange face bolt acts on connected piece surface reduces, due to ring
Xing Cao lower layer part thickness is smaller, can occur bending and deformation under lesser pressure, therefore flange face bolt can be lesser
Under pressure, make flange portion bottom surface nadir and the line contact condition fast transition on connected piece surface to surface contact state, thus
It can avoid flange face bolt and scrape or be crushed connected piece surface when integral, flexible deformation occurs.In the process for continuing to tighten
In, with the increase of screwing force, the lower layer position of annular groove is integrally close to the cell wall of upside of the ring groove, meanwhile, flange face bolt
Flange portion just start to generate integral, flexible deformation, be bonded flange portion bottom surface and connected piece surface close, flange portion bottom surface
It gradually flattens, realizes the connection of flange face bolt and connected piece.When the locking of flange face bolt, the entirety of flange face bolt
Elastic deformation amount makes entire bolt clamping, avoids loosening, in use, if flange face bolt generation loosens trend, i.e. method
Blue face bolt coupling mechanism force decline, integral, flexible deflection have reduction to tend to, at this moment the local elastic deformation at annular groove lower layer position
Power can then discharge, and try hard to continue to keep flange face bolt coupling mechanism force, and restore and make up flange face bolt integral, flexible deflection,
It is locking to be achieved the effect that jointly by integral, flexible deformation and local elastic deformation.
2, the diameter of the radial depth of heretofore described annular groove and minimum point on flange portion bottom surface to flange portion cylindrical surface
To ratio=2:1~3:1 of distance, so that annular groove slot bottom is big as far as possible to the arm of force formed between flange portion bottom surface nadir,
It can be applied to low-force on flange portion bottom surface nadir, make the upward deformation in lower layer position of annular groove.
3, the axial cross section of intermediate annular groove of the present invention is V-shaped or U-shaped, when axial cross section is V-arrangement, after annular groove deformation,
Upper wall surface and lower wall surface can fit together, and when axial cross section is U-shaped, there are certain spaces for the slot bottom of annular groove, increase slot
The screen resilience at bottom makes its elasticity become strong.
4, protruding parts maximum axial on the maximum axial open height of heretofore described annular groove and flange portion bottom surface
The ratio of height is equal to 1:3~1:1.When just tightening, the lower cell wall of annular groove is enable quickly to press to cell wall, the lower cell wall of annular groove
It may press into cell wall, deformation occurs convenient for the upper layer position of flange portion intermediate annular groove, promotes flange portion overall deformation.
5, the axial height of minimum point and flange portion are thick in the minimum point of heretofore described annular groove to flange portion bottom surface
Ratio=1:10~1:2 of degree.It makes it possible to the position deformation of lesser Li Shi annular groove lower layer.
6, on heretofore described flange portion bottom surface minimum point to flange portion cylindrical surface radial distance be equal to 0.4mm~
1.0mm.On the one hand guarantee that the contact surface of flange portion and connected piece is big as far as possible, on the other hand makes annular groove slot bottom to flange portion bottom
It is big as far as possible that the arm of force is formed between the minimum point of face, it can be with lesser Li Shi annular groove lower layer position around the upward deformation of annular groove slot bottom.
7, in the present invention on flange portion bottom surface protruding parts maximum axial height and flange portion thickness ratio=1:50~1:
10.On the one hand guarantee that there is certain protrusion in flange portion bottom surface, enables the lower layer position of annular groove upward in rundown process
Deformation, the elastic deformation amount of flange face bolt make entire bolt clamping, avoid loosening, on the other hand since the effect of annular groove can
Connected piece surface is caused to scrape or is crushed to avoid protruding parts, thus protruding parts maximum axial height of the invention and
The thickness of flange portion can be bigger than conventional flange face bolt, can reinforce locking effect.
8, elastic rubber or marine glue are filled in heretofore described annular groove.On the one hand avoid because water or it is other from
Right environmental factor causes the corrosion to helix type groove, avoids the fracture of flange portion caused by corroding；On the other hand it can increase and twist
Elastic force under tight state, avoids bolt from loosening.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the partial axial section schematic diagram of the first structure in the present invention；
Fig. 3 is the position A enlarged drawing, that is, annular groove the first structural schematic diagram in Fig. 2；
Fig. 4 is second of structural schematic diagram of the position A enlarged drawing, that is, annular groove in Fig. 2；
Fig. 5 is the position A enlarged drawing, that is, annular groove the third structural schematic diagram in Fig. 2；
Fig. 6 is the 4th kind of structural schematic diagram of the position A enlarged drawing, that is, annular groove in Fig. 2；
Fig. 7 is the 5th kind of structural schematic diagram of the position A enlarged drawing, that is, annular groove in Fig. 2；
Fig. 8 is the partial axial section schematic diagram of second of structure in the present invention；
In figure: bolt head 1, flange portion 2, bolt shank 3, flange portion bottom surface 21, flange portion cylindrical surface 22, annular groove 23, method
It dashes forward in minimum point to the radial distance t1 on flange portion cylindrical surface, the radial depth t2 of annular groove, flange portion bottom surface on blue portion bottom surface
The axial height h2, annular groove of minimum point in the minimum point to flange portion bottom surface of position maximum axial height h1, annular groove out
Maximum axial open height h3.
Specific embodiment
The present invention is described in further detail with specific embodiment for explanation with reference to the accompanying drawing.
A kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and be connected to the screw head 1 with
Flange portion 2 between the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 is flange portion bottom surface 21, described
Flange face bottom surface 21 be inner concave, be downwardly projected at flange portion cylindrical surface 22 on the flange portion bottom surface 21, the method
Blue portion cylindrical surface 22 is equipped with annular groove 23, and the radial depth t2 of the annular groove 23 is greater than or equal on flange portion bottom surface 21 most
Radial distance t1 of the low spot to flange portion cylindrical surface 22.
The radial direction of the radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface 22
Ratio=2:1~3:1 of distance t1.
The axial cross section of the annular groove 23 is V-shaped or U-shaped.
The maximum axial open height h3 of the annular groove 23 and protruding parts maximum axial height on flange portion bottom surface 21
The ratio of h1 is equal to 1:3~1:1.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than=1:10~1:2.
The radial distance t1 on minimum point to flange portion cylindrical surface 22 is equal to 0.4mm~1.0mm on the flange portion bottom surface 21.
Ratio=1:50~1:10 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
Elastic rubber or marine glue are filled in the annular groove 23.
Working principle is as follows: the edge position of 2 cylindrical body of flange portion is divided into upper and lower two layers by annular groove 23, works as flange
Minimum point elder generation and quilt when face bolt is threadedly coupled with connected piece, on the 23 lower layer position of annular groove of flange portion bottom surface 21
The contact of connector surface, and connected piece surface is pressed to, the lower layer position of annular groove 23 then starts to occur bending and deformation upwards, pushes away
The cell wall of proximad 23 top of annular groove, the opening of annular groove 23 are integrally leaned in minimum point and associated position on dynamic flange portion bottom surface 21
The contact area on reduced height, flange portion bottom surface 21 and connected piece surface increases, and flange portion bolt acts on connected piece table
The pressure in face reduces, and since annular groove lower layer part thickness is smaller, can occur bending and deformation under lesser pressure, therefore flange
Portion's bolt can make the quick mistake of line contact condition of 21 minimum point of flange portion bottom surface Yu connected piece surface under lesser pressure
It crosses to surface contact state, so that can avoid flange face bolt scrapes or be crushed connected piece surface when integral, flexible deformation occurs
The phenomenon that.During continuing to tighten, with the increase of screwing force, the lower layer position of annular groove 23 is integrally close on annular groove
The cell wall of side, upper and lower two layers of groove body position are integrally combined, and the opening of annular groove disappears substantially, meanwhile, the method for flange face bolt
Blue portion 2 just starts to generate integral, flexible deformation, and flange portion bottom surface 21 and connected piece surface is made to be bonded close, flange portion bottom surface 21
It gradually flattens, realizes the connection of flange face bolt and connected piece.When the locking of flange face bolt, the entirety of flange face bolt
Elastic deformation amount makes entire bolt clamping, avoids loosening, in use, if flange face bolt generation loosens trend, i.e. method
Blue face bolt coupling mechanism force decline, integral, flexible deflection have reduction to tend to, at this moment the local elastic deformation at annular groove lower layer position
Power can then discharge, and try hard to continue to keep flange face bolt coupling mechanism force, and restore and make up flange face bolt integral, flexible deflection,
It is locking to be achieved the effect that jointly by integral, flexible deformation and local elastic deformation.
Embodiment 1
Referring to Fig. 1 and Fig. 2, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, are dashed forward downwards at flange portion cylindrical surface 22 on the flange portion bottom surface 21
Out, the line segment that 21 axial cross section of flange portion bottom surface tilts down, tilting down angle is 1 °, the flange portion cylindrical surface 22
It is equipped with annular groove 23；The radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface 22
Radial distance t1 ratio be equal to 2:1.
Referring to Fig. 3, the axial cross section of the annular groove 23 is V-shaped, the upper wall surface and flange face bolt of intermediate annular groove 23
Central axes it is vertical, lower wall surface is parallel with flange portion bottom surface 21 and is downwards in 1 ° with upper wall；
The ratio of protruding parts maximum axial height h1 on the maximum axial open height h3 of the annular groove and flange portion bottom surface=
1:2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than being equal to 1:2.Ratio=1:50 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
Marine glue is filled in the annular groove 23.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Embodiment 2
Referring to Fig. 1 and Fig. 2, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, are dashed forward downwards at flange portion cylindrical surface 22 on the flange portion bottom surface 21
Out, the line segment that 21 axial cross section of flange portion bottom surface tilts down, tilting down angle is 1.5 °, the flange portion cylindrical surface
22 are equipped with annular groove 23.The radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface
The ratio of 22 radial distance t1 is equal to 3:1；
Referring to fig. 4, the axial cross section of the annular groove 23 is V-shaped, in the lower wall surface and flange face bolt of intermediate annular groove 23
Axis is vertical, and upper wall surface is parallel with flange portion bottom surface 21 and is downwards in 1.5 ° with lower wall；
Ratio=1 of protruding parts maximum axial height h1 on the maximum axial open height h3 of the annular groove and flange portion bottom surface:
2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than being equal to 1:2, ratio=1:40 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Embodiment 3
Referring to Fig. 1 and Fig. 2, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, are dashed forward downwards at flange portion cylindrical surface 22 on the flange portion bottom surface 21
Out, the line segment that 21 axial cross section of flange portion bottom surface tilts down, tilting down angle is 2 °, the flange portion cylindrical surface 22
It is equipped with annular groove 23.The radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface 22
Radial distance t1 ratio be equal to 2.5:1.
Referring to Fig. 5, the axial cross section of the annular groove 23 is V-shaped, and the lower wall surface and upper wall surface of intermediate annular groove 23 are not
It is vertical with the central axes of flange face bolt；
Ratio=1 of protruding parts maximum axial height h1 on the maximum axial open height h3 of the annular groove and flange portion bottom surface:
2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than being equal to 1:3, ratio=1:20 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
Elastic rubber is filled in the annular groove 23.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Embodiment 4
Referring to Fig. 1 and Fig. 2, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, are dashed forward downwards at flange portion cylindrical surface 22 on the flange portion bottom surface 21
Out, the line segment that 21 axial cross section of flange portion bottom surface tilts down, tilting down angle is 1 °, the flange portion cylindrical surface 22
It is equipped with annular groove 23.The radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface 22
Radial distance t1 ratio be equal to 2:1.
Referring to Fig. 6, the axial cross section of the annular groove 23 is in U-shape, the lower wall surface and upper wall surface of intermediate annular groove 23 with
The central axes of flange face bolt are vertical, and the one side close to flange face bolt central axes is in arc surface；After tightening flange face bolt,
The slot bottom of arc surface avoids pressure excessive and tears from slot bottom also there are certain gap in annular groove 23.
The maximum axial open height h3 of the annular groove and protruding parts maximum axial height h1 on flange portion bottom surface
Than=1:2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than being equal to 1:6, ratio=1:50 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Embodiment 5
Referring to Fig. 1 and Fig. 2, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, are dashed forward downwards at flange portion cylindrical surface 22 on the flange portion bottom surface 21
Out, the line segment that 21 axial cross section of flange portion bottom surface tilts down, tilting down angle is 2.5 °, the flange portion cylindrical surface
22 are equipped with annular groove 23.The radial depth t2 of the annular groove 23 and minimum point on flange portion bottom surface 21 to flange portion cylindrical surface
The ratio of 22 radial distance t1 is equal to 2.3:1.
Referring to Fig. 7, the axial cross section of the annular groove 23 is in U-shape, the lower wall surface and upper wall surface of intermediate annular groove 23 with
Flange portion bottom surface 21 is parallel, tilts down 2.5 °, and the one side close to flange face bolt central axes is in arc surface；Tightening flange
After the bolt of face, the slot bottom of arc surface avoids pressure excessive and tears from slot bottom also there are certain gap in annular groove 23.
The maximum axial open height h3 of the annular groove and protruding parts maximum axial height h1 on flange portion bottom surface
Than=1:2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial height h2 of minimum point and 2 thickness of flange portion in the minimum point to flange portion bottom surface 21 of the annular groove 23
Than being equal to 1:10, ratio=1:10 of 2 thickness of protruding parts maximum axial height h1 and flange portion on the flange portion bottom surface 21.
Elastic rubber is filled in the annular groove 23.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Embodiment 6
Referring to Fig. 1 and Fig. 8, a kind of anti-conquassation flange face bolt, including bolt head 1, bolt shank 3 and it is connected to the spiral shell
Flange portion 2 between club head 1 and the bolt shank 3, the one side of the flange portion 2 towards bolt shank 3 are flange portion bottom
Face 21, the flange portion bottom surface 21 are inner concave, and the flange portion bottom surface 21 is downwardly projected at flange portion cylindrical surface 22,
The axial cross section of the flange portion bottom surface 21 is in arc segment, and the flange portion cylindrical surface 22 is equipped with annular groove 23.The annular
The ratio of the radial depth t2 of the slot 23 and radial distance t1 of minimum point on flange portion bottom surface 21 to flange portion cylindrical surface 22 is equal to 2:
1。
The maximum axial open height h3 of the annular groove and protruding parts maximum axial height h1 on flange portion bottom surface
Than=1:2；Radial distance t1=1mm of the minimum point to flange portion cylindrical surface 22 on flange portion bottom surface 21.
The axial cross section of annular groove 23 is also V-type or U-shaped, in the minimum point to flange portion bottom surface 21 of the annular groove 23 most
The ratio of 2 maximum gauge of axial height h2 and flange portion of low spot is equal to 1:8, protruding parts maximum axis on the flange portion bottom surface 21
To ratio=1:40 of 2 thickness of height h1 and flange portion.
The anti-conquassation flange face bolt that is respectively provided on two identical connectors in the present embodiment and common on the market
The size of flange face bolt, the two is consistent, under same operating after a period of work, finds common flange face bolt on the market
There is loosening, and the anti-conquassation flange face bolt in the present embodiment is still in gripping orientation.Flange face bolt is removed, is connected on the market
There is apparent scratch on the connected piece surface of common flange face bolt, and have conquassation phenomenon, and is connected with against pressure in the present embodiment
Without obvious scratch and conquassation phenomenon on the connected piece surface of routed flange face bolt.
Claims (8)
1. a kind of anti-conquassation flange face bolt, including bolt head (1), bolt shank (3) and it is connected to the screw head
(1) flange portion (2) between the bolt shank (3), the one side of the flange portion (2) towards bolt shank (3) are flange
Portion bottom surface (21), the flange face bottom surface (21) are inner concave, close flange portion cylindrical surface on the flange portion bottom surface (21)
(22) it is downwardly projected at, it is characterised in that: the flange portion cylindrical surface (22) is equipped with annular groove (23), the annular groove (23)
Radial depth (t2) be greater than or equal to flange portion bottom surface (21) on minimum point to flange portion cylindrical surface (22) radial distance
(t1)。
2. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: the radial direction of the annular groove (23)
Ratio=2:1~3 of depth (t2) and the radial distance (t1) of minimum point on flange portion bottom surface (21) to flange portion cylindrical surface (22):
1。
3. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: the axial direction of the annular groove (23)
Section is V-shaped or U-shaped.
4. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: the maximum of the annular groove (23)
The ratio of protruding parts maximum axial height (h1) is equal to 1:3~1:1 in axially open height (h3) and flange portion bottom surface (21).
5. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: the annular groove (23) it is minimum
Point arrives the axial height (h2) of minimum point and the ratio=1:10~1:2 of flange portion (2) thickness on flange portion bottom surface (21).
6. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: on the flange portion bottom surface (21)
The radial distance (t1) of minimum point to flange portion cylindrical surface (22) is equal to 0.4mm~1.0mm.
7. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: on the flange portion bottom surface (21)
Ratio=1:50~1:10 of protruding parts maximum axial height (h1) and flange portion (2) thickness.
8. a kind of anti-conquassation flange face bolt according to claim 1, it is characterised in that: filled out in the annular groove (23)
Filled with elastic rubber or marine glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634679.2A CN110439911B (en) | 2019-07-15 | 2019-07-15 | Anti-crushing flange face bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634679.2A CN110439911B (en) | 2019-07-15 | 2019-07-15 | Anti-crushing flange face bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110439911A true CN110439911A (en) | 2019-11-12 |
| CN110439911B CN110439911B (en) | 2024-07-19 |
Family
ID=68430400
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910634679.2A Active CN110439911B (en) | 2019-07-15 | 2019-07-15 | Anti-crushing flange face bolt |
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| Country | Link |
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| CN (1) | CN110439911B (en) |
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| Publication number | Publication date |
|---|---|
| CN110439911B (en) | 2024-07-19 |
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