CN108071656A - Lock washer component - Google Patents
Lock washer component Download PDFInfo
- Publication number
- CN108071656A CN108071656A CN201611024386.5A CN201611024386A CN108071656A CN 108071656 A CN108071656 A CN 108071656A CN 201611024386 A CN201611024386 A CN 201611024386A CN 108071656 A CN108071656 A CN 108071656A
- Authority
- CN
- China
- Prior art keywords
- packing ring
- washer
- faying face
- tightening piece
- gasket assembly
- 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.)
- Pending
Links
- 238000012856 packing Methods 0.000 claims abstract description 126
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 29
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 29
- 241000018646 Pinus brutia Species 0.000 claims abstract description 29
- 230000001815 facial effect Effects 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- 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
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
Abstract
A kind of gasket assembly is provided, for preventing the loosening of tightening piece, wherein：The tightening piece is configured to be combined to fasten by fastener with cooperation screw rod, and the gasket assembly includes：First washer, first side of first washer is formed with recess, the side of the recess is identical with the outside facial contour of the tightening piece, partly to accommodate the tightening piece, so that first washer is rotated synchronously with the tightening piece, the second side opposite with the first side of first washer is formed with the first faying face；Second packing ring, the second packing ring first side opposite with first washer form the second faying face, and first faying face is combined with the second faying face so that the further pine of the tightening piece is hindered to move back when tightening piece pine moves back.The gasket assembly of the present invention is used with bolt head or nut pairing, pass through the mating reaction of tightening piece (such as nut or bolt head) and washer so that tightening piece is more loose to move back, and screw fastening clamp force is tighter, cause tightening piece that can not loosen, moved back so as to play the role of inhibiting the further pine of tightening piece.
Description
Technical field
The present invention relates to a kind of gasket assemblies more particularly to one kind to prevent for matched bolt or nut fastener
The gasket assembly of pine.
Background technology
Fastener is applied in all trades and professions of connection fastening demand, such as in vehicle, building machinery, agricultural machine
It is all widely used in tool, manufacture machinery etc..For in large-scale engineering machinery or engineering truck, due to working environment it is severe with
And the effect of heavy load so that fastener thereon is subject to the vibration of all directions and impacting for load, this cause fastener compared with
It easily loosens, so as to which the reduction of fastener function be caused even to fail.Cause very big security risk.
Currently used fastener locking method generally comprises the locking of non-removable locking scheme and increasing friction force
Scheme.Non-removable locking scheme is changed into detachable threaded connection not using welding, bonding or rushing a little modes such as riveting
It is detachable to be threadedly coupled.In non-removable locking scheme, threaded fastener cannot be reused, and troublesome in poeration, be usually used in
Some important events for requiring anti-loosening property high and to be not required to dismounting.The locking scheme of increasing friction force using increasing between screw thread or
The method of the frictional force of bolt (screw) head and nut end face or the frictional force both increased simultaneously is locking to achieve the purpose that.Increase
The locking scheme of big frictional force can be dismantled repeatedly from the limitation in space, but reliability is poor, in work certain time
Afterwards, anti-loosing effect can be reduced because of reasons such as vibrations.
The content of the invention
Technical problem solved by the invention is to provide a kind of gasket assembly, is used with bolt head or nut pairing,
Pass through the mating reaction of tightening piece (nut or bolt head) and washer so that tightening piece is more loose to move back, and screw fastening clamp force is tighter, causes
Tightening piece can not loosen, and be moved back so as to play the role of inhibiting the further pine of tightening piece.
A kind of exemplary embodiment according to the present invention, provides a kind of gasket assembly, for preventing the loosening of tightening piece,
Wherein：The tightening piece is configured to be combined to fasten by fastener with cooperation screw rod, and the gasket assembly includes：First pad
Circle, the first side of first washer are formed with recess, the side of the recess and the outside facial contour of the tightening piece
It is identical, partly to accommodate the tightening piece so that first washer is rotated synchronously with the tightening piece, first washer
The second side opposite with the first side is formed with the first faying face；Second packing ring, the second packing ring are opposite with first washer
The first side form the second faying face, first faying face is combined with the second faying face so that is hindered when tightening piece pine moves back
The further pine of the tightening piece is hindered to move back.
A kind of exemplary embodiment according to the present invention, wherein, first faying face is provided at least one first
Engaging portion, second faying face are provided with and matched at least one second engaging portion in the first engaging portion, first knot
Conjunction portion includes the first oblique faying face and the second blocking surface that extend in a circumferential direction, and second engaging portion is included in circumference side
The the first oblique faying face upwardly extended and the second blocking surface, wherein the first oblique faying face of first engaging portion be configured to
First oblique faying face of the second engaging portion is engaged contact, and the second blocking surface of first faying face is configured to and the second knot
Second blocking surface in conjunction portion is engaged contact, to realize the combination of the first washer and the second packing ring.
A kind of exemplary embodiment according to the present invention, wherein, the first oblique faying face of first engaging portion and
First oblique faying face of two engaging portions is respectively formed the helicoid with identical lift angle to cooperate, the spiral liter of the helicoid
Angle is more than the externally threaded lead angle of the cooperation screw rod, the spiral of the helicoid on the second engaging portion of the second packing ring
The direction of rising with described externally threaded to screw direction opposite.
A kind of exemplary embodiment according to the present invention, wherein, first engaging portion and matched second combines
Portion is two.
A kind of exemplary embodiment according to the present invention, wherein, the second blocking surface and second of first engaging portion
Second blocking surface of engaging portion is identical with the angle of horizontal plane, and is obtuse angle or right angle.
A kind of exemplary embodiment according to the present invention, wherein, the second packing ring it is opposite with first side
The second side is formed with ratchet, and the ratchet is constructed such that second packing ring and is more than the first pad by the frictional force between tightening member
Frictional force between circle and second packing ring, so that second packing ring is kept not compared with by tightening member when tightening piece loosens
It is dynamic.
A kind of exemplary embodiment according to the present invention, wherein, the ratchet is configured in the close of second packing ring
It is arranged radially on the surface of the one side of tightening member.
A kind of exemplary embodiment according to the present invention, wherein, the outer circumferential surface of the second packing ring is formed with plum blossom side,
So that wrench device drives the tightening piece, first washer and the second packing ring to rotate together.
A kind of exemplary embodiment according to the present invention, wherein, the outer circumferential surface of first washer be formed with it is described
The identical plum blossom side of the outer circumferential surface of second packing ring.
A kind of exemplary embodiment according to the present invention, wherein, the tightening piece has four-prism shape, regular hexagonal prism
Shape or quincunx lateral surface.
A kind of exemplary embodiment according to the present invention, wherein：The wrench device includes：Cylindric main part；
First wrench portion is arranged on the inside of the main part, and is configured to be engaged with the plum blossom side of the second packing ring；And the
Two wrench portions are arranged on the inside of the main part, and are configured to be engaged with the lateral surface of the tightening piece.
A kind of exemplary embodiment according to the present invention, wherein, first washer is constructed with the second packing ring
It can not be kept completely separate into the two.
A kind of exemplary embodiment according to the present invention, wherein, first washer includes：Main part, it is described recessed
Portion is formed in the main part；And protrusion, the protrusion is from the main part in the inside of first faying face
Extension, to be contained in the second packing ring.
A kind of exemplary embodiment according to the present invention, wherein, the end of the protrusion formed protrude outward it is convex
Edge；It is formed with recess in the second side opposite with the first side of the second packing ring, the recess is from the second packing ring
The second side being recessed axially inwards along second packing ring, the flange is engaged with the bottom surface of the recess of the second packing ring,
So that first washer is rotated compared with the second packing ring but cannot departed from from the second packing ring.
A kind of exemplary embodiment according to the present invention, wherein, the flange is from described second in the protrusion
What the first side of washer was formed through the stamping process after reaching the second side through the second packing ring.
A kind of exemplary embodiment according to the present invention, wherein, first washer is split with the second packing ring
Part.
A kind of exemplary embodiment according to the present invention, wherein, the first side of the second packing ring is formed with recess,
Second faying face is set on the bottom surface of the recess of first side；Wherein, the first faying face quilt of first washer
It is contained in the recess of the first side of the second packing ring, first faying face is combined with second faying face.
A kind of exemplary embodiment according to the present invention, wherein, the tightening piece is bolt head, the bolt head and institute
It states cooperation screw rod integrally connected and rotates together.
A kind of exemplary embodiment according to the present invention, wherein, the tightening piece is nut, and the nut is matched somebody with somebody with described
Close screw flight cooperation.
Technical problem solved by the invention is to provide a kind of gasket assembly, is used with bolt head or nut pairing,
Pass through the mating reaction of tightening piece (nut or bolt head) and washer so that tightening piece is more loose to move back, and screw fastening clamp force is tighter, causes
Tightening piece can not loosen, and be moved back so as to play the role of inhibiting the further pine of tightening piece.
Description of the drawings
The present invention with reference to the accompanying drawings to be further described, wherein：
Fig. 1 is the stereoscopic schematic diagram for the gasket assembly for showing a kind of exemplary embodiment according to the present invention；
Fig. 2 is the partial schematic sectional view for showing gasket assembly shown in FIG. 1；
Fig. 3 is the stereoscopic schematic diagram for showing the first washer in gasket assembly shown in FIG. 1；
Fig. 4 is another stereoscopic schematic diagram for showing the first washer shown in Fig. 3；
Fig. 5 is the stereoscopic schematic diagram for showing the second packing ring in gasket assembly shown in FIG. 1；
Fig. 6 is another stereoscopic schematic diagram for showing the second packing ring shown in Fig. 5；
Fig. 7 is the geometrical principle figure of the helix angle for the second faying face for showing the second packing ring shown in Fig. 5；
Fig. 8 is the geometry shown with the externally threaded helix angle of the screw rod of the gasket assembly of the embodiment of the present invention cooperation
Schematic diagram；
Fig. 9 is to show the solid that a kind of gasket assembly of exemplary embodiment according to the present invention is combined with nut tightening piece
Schematic diagram；
Figure 10 is to show the partial schematic sectional view that gasket assembly shown in Fig. 9 is combined with nut tightening piece；
Figure 11 is to show that gasket assembly shown in Fig. 10 is combined to fasten by the section view of tightening member with nut tightening piece
Schematic diagram；
Figure 12 is to show that gasket assembly according to another exemplary embodiment of the present invention, is combined with bolt tightening piece
Schematic cross-sectional view；
Figure 13 is the stereoscopic schematic diagram for showing to tighten or unclamp the wrench device of the gasket assembly and tightening piece；
Figure 14 is the sectional view for showing the wrench device shown in Figure 13；
Figure 15 is the section view combined according to the gasket assembly of another exemplary embodiment of the present invention with nut tightening piece
Schematic diagram；And
Figure 16 is the section view that the gasket assembly of another exemplary embodiment according to the present invention is combined with nut tightening piece
Schematic diagram.
Specific embodiment
It, should before being described herein although the present invention will be fully described with reference to the attached drawing containing presently preferred embodiments of the present invention
Invention described herein can be changed by understanding those of ordinary skill in the art, while obtain the technique effect of the present invention.Cause
This, it should be understood that above description is an extensive announcement for those of ordinary skill in the art, and its content does not lie in limit
Make exemplary embodiment described in the invention.
A kind of exemplary embodiment according to the present invention provides a kind of gasket assembly, for preventing the loosening of tightening piece,
Wherein：The tightening piece is configured to be combined to fasten by fastener 5 with cooperation screw rod 403；The gasket assembly includes：First
Washer 1, the first side of first washer are formed with recess 11, the side of the recess 11 and the outside of the tightening piece
Facial contour is identical, partly to accommodate the tightening piece so that first washer is rotated synchronously with the tightening piece；Described first
The second side opposite with the first side of washer is formed with the first faying face；Second packing ring 2, the second packing ring and the described first pad
It encloses the first opposite side and forms the second faying face, first faying face is combined with the second faying face so that when tightening piece pine
The further pine of the tightening piece is hindered to move back when moving back.
A kind of exemplary embodiment according to the present invention, the tightening piece have four-prism shape, regular hexagonal prism shape or
Person is quincunx lateral surface.As shown in Fig. 9,11, the tightening piece is nut 401, which can be tetragonal nut, hex nut
Or horned nut, nut 401 is the same as coordinating the external screw thread of screw rod 402 to be combined.It is according to the present invention another illustrative real
Example is applied, as shown in figure 12, the tightening piece is bolt head 401 ', and the bolt head 401 ' and the 402 ' integrally connected of screw rod are simultaneously
It rotates together.In this way, bolt head 401 ' and screw rod 402 ' form a bolt.Bolt head 401 ' can be corner bolt head, six
Corner bolt head or plum blossom bolt head.
It will be appreciated by those of skill in the art that second packing ring 2 can cause it with being fastened member by using various measures
Part forms larger frictional force, and second packing ring and is more than the first washer 1 and second packing ring 2 by the frictional force between tightening member
Between frictional force.In this way, under certain external force effect, in tightening piece 401,401 ' and the first washer 1 compared with screw rod pine
Second packing ring 2 remains stationary as when dynamic.
Referring to Fig. 1-11, the gasket assembly of the embodiment of the present invention is described so that tightening piece is nut as an example.
A kind of exemplary embodiment according to the present invention, as shown in figures 1 to 6, first faying face are provided at least one
A first engaging portion, second faying face be provided with matched at least one second engaging portion in the first engaging portion, it is described
First engaging portion includes the first oblique 121 and second blocking surface 122 of faying face extended in a circumferential direction, second engaging portion
The first oblique 211 and second blocking surface 212 of faying face including extending in a circumferential direction, wherein the first of first engaging portion
Oblique faying face 121, which is configured to be engaged with the first oblique faying face 211 of the second engaging portion, to be contacted, and the of first faying face
Two blocking surfaces 122 are configured to be engaged with the second blocking surface 212 of the second engaging portion and contact, as shown in Figure 1, 2, to realize
The combination of one washer and the second packing ring.
Fig. 7 is the geometrical principle figure of the helix angle for the second faying face for showing the second packing ring shown in Fig. 5.Fig. 8 is to show
Go out the geometrical principle figure with the externally threaded helix angle of the screw rod of the nut tightening piece of the embodiment of the present invention cooperation.First knot
First oblique faying face 211 of first oblique 121 and second faying face of faying face in conjunction face is respectively formed the helicoid with identical lift angle
To cooperate.The right part of Fig. 7 show be helicoid developed dimension relation schematic diagram.φ is the first oblique faying face
121 and 211 helix angle.Ph is the climbing height of helicoid, and D is the central diameter of helicoid.In fig. 8, α is with the present invention's
The externally threaded lead angle of the screw rod 402,402 ' of the tightening piece cooperation of embodiment, d is screw flight major diameter, and d1 is screw rod
Diameter of thread, d2 be screw flight central diameter.Since nut tightening piece 401 and screw rod 402 coordinate, the internal thread of nut 401
Helix angle also be α.
A kind of exemplary embodiment according to the present invention, as shown in figs. 2-11, the first of first engaging portion tiltedly combines
First oblique faying face 211 of 121 and second engaging portion of face is respectively formed the helicoid with identical lift angle to cooperate.Helicoid
Helix angle in be more than the externally threaded lead angle α of the cooperation screw rod 402, on the second engaging portion of the second packing ring
Helicoid spiralling direction with described externally threaded to screw direction opposite.In this way, it is moved back in 401 pine of nut tightening piece
When, due to second packing ring 2 because larger frictional force is compared with screw rod 402 and static by tightening member 5, and the first washer 1 is opposite
In the case that screw rod 402 rotates predetermined angular, nut 401 drives the first washer 1 to rotate, and the first washer 1 drives nut 401 to climb
It rises, 1 outside of the first washer is more than spiral shell compared with the climb altitude in second packing ring 2 in the axial direction (upwardly direction in Figure 11)
Height is moved back in 401 inside of mother compared with pine of the screw thread of screw rod 402 on axis direction (upwardly direction in Figure 11), so that
Nut 401 is stretched for matched screw rod 402, forms the pretightning force of bigger, and the pine for inhibiting nut 401 moves back, and under nut 401
The first washer 1 is pressed, further compresses second packing ring 2 so that second packing ring 2 is further compressed by fastener.In this way, gasket assembly
Play the role of preventing tightening piece pine from moving back.
Those skilled in the art are it is also understood that the lead angle of the internal thread corresponding to different tightening pieces, and first
The helix angle of first oblique faying face 211 of the first oblique 121 and second engaging portion of faying face of engaging portion also will be corresponding different.
A kind of exemplary embodiment according to the present invention, first engaging portion and matched second engaging portion are two
It is a.
In the embodiment shown in Fig. 1-12, the first engaging portion and matched second engaging portion are two.First combines
Portion and the second engaging portion are distributed respectively along the circumferencial direction of the first faying face of place and the second faying face.For multiple engaging portions example
The situation of such as six engaging portions, since the helicoid for each engaging portion is shorter, washer is rotatable when loosening relatively
Angle is smaller, and when rotational angle is more than such as 60 °, the first oblique faying face of the first engaging portion is from corresponding second engaging portion
The first oblique faying face on depart from and combined with loosening the first oblique faying face of next second engaging portion on direction, at this time the
One washer falls compared with the climb altitude of second packing ring, and the outside for the nut for being moved and being climbed by the first gasket tape turn is climbed
It is highly no larger than moving back height compared with pine of the screw flight on axis direction (upwardly direction in Fig. 3) on the inside of nut,
Therefore the coupling mechanism force between nut and screw rod is no longer increased, therefore gasket assembly no longer has what the further pine of obstruction nut moved back
Effect.And for the embodiment in two basic change portion, it is maximum allowable since the helicoid for each engaging portion is longer
Washer rotational angle, that is, nut loosening angle it is larger, therefore can ensure can have in the stroke of larger nut loosening
There is the function that the further pine of nut is hindered to move back.And the structure in two basic change portion can be reduced and added for multiple engaging portions
Work complexity and corresponding processing cost.
A kind of exemplary embodiment according to the present invention, wherein, in order to enable when the first washer 1 is installed with second packing ring 2
With reference to when, second blocking surface 122,212 is abutted against to realize being mutually located for the first washer 1 and second packing ring 2, and is prevented
Only the first washer 1 with the externally threaded identical direction in direction that screws compared with the rotation of second packing ring 2, second blocking surface
122nd, 212 is identical with the angle of horizontal plane, and is disposed as obtuse angle or right angle.It is described in the embodiment shown by Fig. 1-15
The angle of second blocking surface 122,212 and horizontal plane is right angle.
A kind of exemplary embodiment according to the present invention, as shown in Figure 2,6, the close of the second packing ring 2 are fastened member
Ratchet 23 is formed on the surface of the one side of part, the ratchet 23 is constructed such that second packing ring 2 and by between tightening member
Frictional force is more than the frictional force between the first washer 1 and second packing ring 2, so that in 401 and first washer 1 of nut compared with spiral shell
Second packing ring 2 is remained stationary as compared with by tightening member when bar loosens.
A kind of exemplary embodiment according to the present invention, the ratchet 23 are configured to leaning in second packing ring as shown in Figure 6
Closely it is arranged radially on the surface of the one side of tightening member.The number of the radial ratchet is more than the first engaging portion and matching
The quantity for the second engaging portion closed, the ratchet of compact arranged radial setting cause second packing ring 2 and by between tightening member
Generate larger frictional force.
A kind of exemplary embodiment according to the present invention, the outer circumferential surface of the second packing ring 2 is formed with plum blossom side, for pulling
Arm device 3 drives the tightening piece, first washer 1 and the second packing ring 2 to rotate together.
A kind of exemplary embodiment according to the present invention, the outer circumferential surface of first washer 1 are formed with and the described second pad
The identical plum blossom side of outer circumferential surface of circle 2.
As shown in Figure 13,14, according to an exemplary embodiment, the wrench device 3 includes：Cylindric main body
Portion；First wrench portion 31 for being combined with the second packing ring 2, is formed with and second packing ring in the outer circumferential surface of the first washer
The identical plum blossom side of outer circumferential surface embodiment in, the second wrench portion 31 can be used for and first washer 1 and second packing ring 2
It is combined；First wrench portion 31 is formed in the inside of the first end combined with the second packing ring of the main part, and
Be formed as and the matched plum lace shape in the plum blossom side of the second packing ring；And second wrench portion 32, for the nut
401 are combined, and second wrench portion 32 extends internally from first wrench portion 31 along the axis of the main part, and shape
As the matched shape of lateral surface with the nut 401.
Wrench device further includes the connecting portion 33 being formed on the main part, and the connecting portion 33 is used for and external key
Instrument connects, to turn 401 and first washer 1 of the wrench device 3, the second packing ring 2 and the nut, the connecting portion
33 extend to second wrench portion 32 from the second end opposite with the first end of the main part.A kind of interchangeable
In embodiment, handle can be integrally provided on main part, to drive the wrench device.Using, the wrench device 3 is right
When fastener is tightened or dismantled, by the first resistance of the second blocking surface 212 of the second packing ring 2 and first washer 1
Block face 122 abuts against so that the first washer 1 and 2 relative positioning of second packing ring.First wrench portion 31 is incorporated in described
On the plum blossom side of the outer circumferential surface of two washers 2, and first wrench portion 32 is incorporated on the outer surface of nut, uses outside
Wrench is inserted into the connecting portion 33, so as to which the fastener is tightened or dismantled by Wrench.
Figure 12 is decomposition of the gasket assembly on bolt shown according to another exemplary embodiment of the present invention,
Schematic diagram.Wherein tightening piece is and 402 ' integrally connected of screw rod and the bolt head 401 ' rotated together with screw rod 402 '.Bolt head
401 ' lateral surface it is identical with the profile of the side of the recess of the first washer be partially received in the recess and with institute
The lateral surface for stating tightening piece is combined and is rotated synchronously with the tightening piece.Second packing ring is coaxially disposed with bolt head, and spiral shell
Bar 402 ' passes through the through hole of second packing ring.
Structure and combination and figure for the second faying face of the first faying face and second packing ring 2 of the first washer 12
The structure of fastener shown in 1-11 is identical with combination, passes through matching somebody with somebody for the first washer and the spiral faying face of second packing ring
It closes and prevents the loosening of bolt head.Details are not described herein.
A kind of exemplary embodiment according to the present invention, first washer 1 are configured to two with the second packing ring 2
Person can not be kept completely separate.
In exemplary embodiment illustrated in fig. 15, first washer 1 ' includes：Main part 12 ', it is described recessed
Portion 11 is formed in the main part 12 '；And protrusion 13 ', the protrusion 13 ' is from the main part 12 ' described
The inside extension of one faying face, to be contained in the second packing ring 2 '.
A kind of exemplary embodiment according to the present invention, the end of the protrusion 13 ' form the flange protruded outward
131’；It is formed with recess 22 ' in the second side opposite with the first side of the second packing ring 2 ', the recess 22 ' is from institute
State the second side being recessed axially inwards along second packing ring of second packing ring, the flange and the recess 22 ' of the second packing ring
Bottom surface be engaged so that first washer 1 compared with the second packing ring 2 ' rotate but cannot be from the second packing ring 2 '
Depart from.
According to an exemplary embodiment, specifically, as shown in figure 15, the end of the protrusion 13 ' formed to
The flange 131 ' of outer protrusion, the outer diameter of flange 131 ' are more than the internal diameter of the endoporus of second packing ring 2 ', the second packing ring 2 ' it is recessed
Into the rising of the bottom surface stop flange 131 ' in portion 22 '.In this way, first washer 1 ' is allowed compared with the second packing ring 1 '
It rotates but cannot depart from from the second packing ring 2 '.
By setting gap of the flange 131 ' in the axial direction between the bottom surface of the recess 22 ' of second packing ring 2 '
Highly it is less than the height in the axial direction of the first and second blocking surfaces, can makes the first washer 1 ' can only be compared with the second pad
2 ' rotation predetermined angular range of circle, so that the distance that screw rod is stretched in the axial direction is less than 1.0mm, it ensure that
Using process screw rod not because being excessively stretched during the loosening of tightening piece so that damage, the security performance of fastener ensure that.
Specifically, in gasket assembly according to embodiments of the present invention, due to the first oblique faying face of the first faying face
(not shown) is configured to be engaged with the first oblique faying face (not shown) of the second engaging portion and contact, first faying face
Second blocking surface is configured to be engaged with the second blocking surface of the second engaging portion and contact.In this way, in the first washer 1 ' from stop
When face is rotated compared with second packing ring 2 ', the first washer 1 ' gradually will leave second packing ring 2 ', but since flange 131 ' is by second
The bottom surface limitation of the recess portion of washer, the first washer 1 ' and nut 401 ' can only axially on climb certain distance, i.e., can only be opposite
Predetermined angular range is rotated in second packing ring 2 '.In one embodiment, the first washer 1 ' and nut are compared with second packing ring
2 ' the maximum angle scopes rotated are 30-70 degree, preferably 40-70 degree.
According to an exemplary embodiment, first washer 1 and the second packing ring 2 or split part only exist
Ability temporary fit uses during use.
Another exemplary embodiment according to the present invention, as shown in figure 16, the first side shape of the second packing ring 2 "
Into there is recess 21 ", second faying face is set on the bottom surface of the recess 21 " of first side；Wherein, first pad
Circle 1 " the first faying face be accommodated in the recess 21 " of the first side of the second packing ring 2 ", first faying face with
Second faying face is combined.The structure of remaining structure of the embodiment of the gasket assembly and the embodiment shown in attached drawing 1-14
Identical, details are not described herein.
It will be understood by those skilled in the art that by the way that the first faying face of the first washer 1 " is contained in second packing ring 2 "
In recess, the more stable positioning for the first washer is realized, and the first faying face of the first washer and second are padded
Second faying face of circle is hidden within second packing ring, is reduced the foreign matter under severe operating mode and is entered between faying face so as to shadow
Ring the possibility of anti-loosening property so that integral fastener is more stable and reliable.
Below by taking the tightening piece of attached drawing 11 is the embodiment of nut 401 as an example, pad according to an embodiment of the invention is described
The operating process of coil assembly when in use.
Referring to attached drawing 1-11, when mounted, second packing ring 2 is inserted in screw rod 402；It is inserted in the first washer 1 afterwards, described
Second blocking surface 212 of two washers 2 is abutted against with the first blocking surface 122 of first washer 1 so that the first washer 1 and
Two washers, 2 relative positioning；Then it is screwed into nut 401 so that the side of the recess 11 of the lateral surface of nut 401 and the first washer
Profile is bonded, and nut 401 is partially received in the recess 11；Continue to turn the application pretightning force of nut 401 and will be fastened
Element 5 clamps fastening.
The pine that can generate nut 401 with the passage of usage time moves back, due to the lateral surface and the first washer of nut 401
The cooperation of the side of recess 11 so that the first washer 1 is moved back with 401 synchronous pine of nut.Due to second packing ring 2 and by tightening member
Frictional force between 5 is more than the frictional force between the first washer 1 and second packing ring 2, therefore second packing ring 2 is compared with by tightening member
5 remain stationary as, and when the first washer 1 is compared with 2 preliminary motion of second packing ring, second packing ring 2 is kept not compared with screw rod 402
It is dynamic.The preliminary motion is first along the first oblique 121 and second engaging portion of faying face of the first engaging portion for being engaged contact
What oblique faying face 211 carried out.
As shown in figures 1-8, since the first oblique 121 and first oblique faying face 211 of faying face is formed as helicoid, the spiral
The helix angle in face is more than the screw flight lift angle.Then when the first washer 1 and 401 pine of nut move back, in pine retreat dynamic one
In the case of determining angle, since the first washer 1 along the first oblique faying face 121 and 211 moves drive spiral shell along helix angle direction
Mother 401 climbs together, and the climbing height in 401 outside of the first washer 1 and nut is more than the inside thread of nut from matched spiral shell
The height exited on the external screw thread of bar 403, so as to form the stretching for matched screw rod 403.Therefore, in nut 401
The coupling mechanism force of bigger is formed at the externally threaded mating connection of internal thread and screw rod, which inhibits the further of nut 401
Pine move back.Matched screw rod 402 generates nut 401 the opposite pulling force towards second packing ring 2 so that nut 401 and
Downwardly against the second packing ring 2, second packing ring 2 is further compressed by fastener 5 one washer 1, thus second packing ring 2 with it is tight
Gu the frictional force bigger between element inhibits the movement of nut 401.It is moved back in this way, nut 401 is more loose, due to helix angle and spiral shell
The difference of line lift angle and generate it is bigger to the stretching of screw rod, so as to coupling mechanism force it is bigger, nut is caused to be less susceptible to loosen.
It will be understood by those skilled in the art that object difference and the work faced used in nut or bolt fastener
Condition is different, then the safety margins of permitted loosening angle is also different, therefore, different tightening pieces can be set for different operating modes
Pine moves back the safety margins of angle, such as in the case of larger operating mode is vibrated and requirement connection precision is less high, can set compared with
Big tightening piece pine moves back the safety margins of angle.And for the higher operating mode of connection fastening required precision, then smaller peace is set
The full limit so that the nut or bolt fastener can more delicately reflect influence of the vibration for fastener, to contribute to
It determines the need for replacing fastener.
Gasket assembly described in above-mentioned various embodiments according to the present invention, gasket assembly according to embodiments of the present invention, no
The structure of existing nut or bolt head need to be changed, pass through the mating reaction of the first washer and second packing ring so that tightening piece is got over
Pine moves back, and screw fastening clamp force is tighter, causes tightening piece that can not loosen, and is moved back so as to play the role of inhibiting the further pine of tightening piece.Make
The connection fastening of safety and stability can also be realized even if under severe operating mode by obtaining.Further, by by the first of the first washer
Faying face is contained in the recess of second packing ring, realizes the more stable positioning for the first washer, and first is padded
Circle and the faying face of second packing ring are hidden within second packing ring, are reduced the foreign matter under severe operating mode and are entered between faying face
So as to influence the possibility of anti-loosening property.Also, it is the fastener that can be dismantled from by tightening member due to the fastener, prevents
Loose performance is from locking and unclamp the influence of number, while its anti-loosening property is from the influence of lubrication and pretightning force size.
Having can also keep reliably connecting under the occasion of high vibration or heavy load.
It will be understood to those skilled in the art that embodiment described above is all exemplary, and this field
Technical staff can make improvements, the rushing in terms of not recurring structure or principle of the structure described in various embodiments
It can be freely combined in the case of prominent.
After the preferred embodiment that the present invention will be described in detail, those skilled in the art can be apparent from,
The protection domain of appended claims is not departed from various change can be carried out under spirit with changing, and the present invention is also not only restricted to
The embodiment of examples cited embodiment in bright book.
Claims (19)
1. a kind of gasket assembly, for preventing the loosening of tightening piece, wherein：
The tightening piece is configured to be combined to fasten by fastener with cooperation screw rod,
The gasket assembly includes：
First washer, the first side of first washer are formed with recess, the side of the recess and the tightening piece
Outside facial contour is identical, partly to accommodate the tightening piece so that first washer is rotated synchronously with the tightening piece, described
The second side opposite with the first side of first washer is formed with the first faying face；
Second packing ring, the second packing ring first side opposite with first washer form the second faying face, first knot
Conjunction face is combined with the second faying face so that the further pine of the tightening piece is hindered to move back when tightening piece pine moves back.
2. gasket assembly according to claim 1, wherein, first faying face is provided at least one first and combines
Portion, second faying face are provided with and matched at least one second engaging portion in the first engaging portion, first engaging portion
The first oblique faying face and the second blocking surface including extending in a circumferential direction, second engaging portion are included in a circumferential direction
The the first oblique faying face and the second blocking surface of extension, wherein the first oblique faying face of first engaging portion is configured to and second
First oblique faying face of engaging portion is engaged contact, and the second blocking surface of first faying face is configured to and the second engaging portion
The second blocking surface be engaged contact, to realize the combination of the first washer and the second packing ring.
3. gasket assembly according to claim 2, wherein, the first oblique faying face of first engaging portion and second combines
The first oblique faying face in portion is respectively formed the helicoid with identical lift angle to cooperate, and the helix angle of the helicoid is more than
The externally threaded lead angle of the cooperation screw rod, helicoid on the second engaging portion of the second packing ring it is spiralling
Direction with described externally threaded to screw direction opposite.
4. the gasket assembly according to Claims 2 or 3, wherein, first engaging portion and matched second engaging portion
It is two.
5. the gasket assembly according to Claims 2 or 3, wherein, the second blocking surface and the second knot of first engaging portion
Second blocking surface in conjunction portion is identical with the angle of horizontal plane, and is obtuse angle or right angle.
6. gasket assembly according to claim 1, wherein, the second side opposite with first side of the second packing ring
It is formed with ratchet, the ratchet is constructed such that second packing ring and is more than the first washer and the by the frictional force between tightening member
Frictional force between two washers, so that second packing ring is remained stationary as compared with by tightening member when tightening piece loosens.
7. gasket assembly according to claim 6, wherein, the ratchet is configured to be fastened in the close of second packing ring
It is arranged radially on the surface of the one side of element.
8. gasket assembly according to claim 1, wherein, the outer circumferential surface of the second packing ring is formed with plum blossom side, for
Wrench device drives the tightening piece, first washer and the second packing ring to rotate together.
9. gasket assembly according to claim 8, wherein, the outer circumferential surface of first washer is formed with and the described second pad
The identical plum blossom side of the outer circumferential surface of circle.
10. gasket assembly according to claim 8, wherein, the tightening piece have four-prism shape, regular hexagonal prism shape or
Person is quincunx lateral surface.
11. according to the gasket assembly any one of claim 8-10, wherein：
The wrench device includes：
Cylindric main part；
First wrench portion is arranged on the inside of the main part, and is configured to be engaged with the plum blossom side of the second packing ring；With
And
Second wrench portion is arranged on the inside of the main part, and is configured to be engaged with the lateral surface of the tightening piece.
12. gasket assembly according to claim 1, wherein, first washer is configured to two with the second packing ring
Person can not be kept completely separate.
13. gasket assembly according to claim 12, wherein, first washer includes：
Main part, the recess are formed in the main part；And
Protrusion, the protrusion extends from the main part in the inside of first faying face, to be contained in described second
In washer.
14. gasket assembly according to claim 13, wherein, the end of the protrusion forms the flange protruded outward；
It is formed with recess in the second side opposite with the first side of the second packing ring, the recess is from the second packing ring
The second side being recessed axially inwards along second packing ring, the flange is engaged with the bottom surface of the recess of the second packing ring,
So that first washer is rotated compared with the second packing ring but cannot departed from from the second packing ring.
15. gasket assembly according to claim 14, wherein, the flange is from the second packing ring in the protrusion
The first side reach the second side through the second packing ring after formed through the stamping process.
16. gasket assembly according to claim 1, wherein, first washer is split part with the second packing ring.
17. according to claim 1-16 any one of them gasket assemblies, wherein, the first side of the second packing ring is formed with recessed
Into portion, second faying face is set on the bottom surface of the recess of first side；
Wherein, the first faying face of first washer is accommodated in the recess of the first side of the second packing ring, described
First faying face is combined with second faying face.
18. the gasket assembly as described in any one of claim 1-17, wherein, the tightening piece is bolt head, the spiral shell
Bolt head with it is described cooperation screw rod integrally connected and together with rotate.
19. the gasket assembly as described in any one of claim 1-17, wherein, the tightening piece is nut, the nut
With the cooperation screw flight cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024386.5A CN108071656A (en) | 2016-11-16 | 2016-11-16 | Lock washer component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024386.5A CN108071656A (en) | 2016-11-16 | 2016-11-16 | Lock washer component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071656A true CN108071656A (en) | 2018-05-25 |
Family
ID=62160692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024386.5A Pending CN108071656A (en) | 2016-11-16 | 2016-11-16 | Lock washer component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071656A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561409A (en) * | 2018-07-16 | 2018-09-21 | 四川中伦精密机械有限公司 | Embedding spring formula double anti-loosing nut |
| CN108825227A (en) * | 2018-08-08 | 2018-11-16 | 徐州徐工基础工程机械有限公司 | Development machine cutter device and development machine |
| CN110561344A (en) * | 2019-09-11 | 2019-12-13 | 福建福清核电有限公司 | device for quickly disassembling long screw nut of heat exchanger |
| CN113386079A (en) * | 2020-03-11 | 2021-09-14 | 中国航发商用航空发动机有限责任公司 | Mounting method, tool and fastening kit for special-shaped lock ring |
| CN115593453A (en) * | 2022-11-21 | 2023-01-13 | 成都永贵东洋轨道交通装备有限公司（Cn） | Lock support locking device of train through passage section bar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108561409A (en) * | 2018-07-16 | 2018-09-21 | 四川中伦精密机械有限公司 | Embedding spring formula double anti-loosing nut |
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| CN113386079A (en) * | 2020-03-11 | 2021-09-14 | 中国航发商用航空发动机有限责任公司 | Mounting method, tool and fastening kit for special-shaped lock ring |
| CN115593453A (en) * | 2022-11-21 | 2023-01-13 | 成都永贵东洋轨道交通装备有限公司（Cn） | Lock support locking device of train through passage section bar |
| CN115593453B (en) * | 2022-11-21 | 2023-10-13 | 成都永贵东洋轨道交通装备有限公司 | Lock support anti-loosening device for train through channel profile |
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