CN108071649A - Fastener - Google Patents
Fastener Download PDFInfo
- Publication number
- CN108071649A CN108071649A CN201611032693.8A CN201611032693A CN108071649A CN 108071649 A CN108071649 A CN 108071649A CN 201611032693 A CN201611032693 A CN 201611032693A CN 108071649 A CN108071649 A CN 108071649A
- Authority
- CN
- China
- Prior art keywords
- annular element
- tightening piece
- pine
- joint part
- nut
- 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
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- 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
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- 230000002829 reductive effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
-
- 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
-
- 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
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
A kind of fastener is provided, including：Tightening piece is configured to be combined to fasten by fastener with cooperation screw rod, set on the first end surfaces of the tightening piece there are two the first joint part；And annular element, the annular element are coaxially disposed with the tightening piece, and two the second joint parts are set on the first side surface of the annular element；Wherein, first joint part is engaged with the second joint part so that the further pine of the tightening piece is hindered to move back when tightening piece pine moves back.The joint parts that the fastener of the present invention has helicoid using two realize and inhibit the further pine of tightening piece when tightening piece pine moves back and move back, and have longer composition surface between tightening piece and annular element, have higher locking stability.And using the fastener with flange and the structure of instruction device, realize the further control moved back to pine.
Description
Technical field
The fastener more particularly to one kind moved back the present invention relates to a kind of further pine for realizing inhibition tightening piece is inhibiting to twist
The further pine of tight part indicates the fastener of the pine amount of moving back of tightening piece while moving back.
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, fastener cannot be reused, and troublesome in poeration, be usually used in some
It is required that anti-loosening property is high and is not required to the important events of dismounting.The locking scheme of increasing friction force is using increasing between screw thread or bolt
The method of the frictional force of (screw) head and nut end face or the frictional force both increased simultaneously is locking to achieve the purpose that.Increase rubs
The locking scheme of power is wiped from the limitation in space, can be dismantled repeatedly, but reliability is poor, is working after a certain period of time, meeting
Because the reasons such as vibration reduce anti-loosing effect.
The content of the invention
Technical problem solved by the invention is to provide a kind of fastener, the engagements for having helicoid using two
Portion realizes and inhibits the further pine of tightening piece when tightening piece pine moves back and move back, and have between tightening piece and annular element compared with
Long composition surface has higher locking stability.
The embodiment of one side according to the present invention provides a kind of fastener, including：
Tightening piece is configured to be combined with fastening by fastener with cooperation screw rod, on the first end surfaces of the tightening piece
First joint part there are two setting；And
Annular element, the annular element are coaxially disposed with the tightening piece, and two are set on the first side surface of the annular element
A second joint part；
Wherein, first joint part is engaged with the second joint part so that is tightened described in being hindered when tightening piece pine moves back
The further pine of part moves back.
An exemplary embodiment according to the present invention, wherein, first joint part includes prolonging in a circumferential direction
The the first oblique faying face stretched and the second blocking surface, second joint part include the first oblique faying face extended in a circumferential direction
With the second blocking surface, wherein the first oblique faying face at first joint part is configured to tiltedly combine with the first of the second joint part
Face is engaged contact, and second blocking surface at first joint part is configured to be engaged with second blocking surface at the second joint part
Contact, to realize the engagement of tightening piece and the annular element.
An exemplary embodiment according to the present invention, wherein, the first oblique faying face at first joint part and
The first oblique faying face at two joint parts is respectively formed the helicoid with identical lift angle to cooperate, the spiral liter of the helicoid
Angle is more than the cooperation screw flight lift angle, the spiralling direction of the helicoid on the second joint part of the annular element
With the cooperation screw rod to screw direction opposite.
An exemplary embodiment according to the present invention, wherein, second blocking surface and second at first joint part
Second blocking surface at joint part is identical with the angle of horizontal plane, and is obtuse angle or right angle.
An exemplary embodiment according to the present invention, wherein, the annular element includes：First cylindrical portion, described
One cylindrical portion is formed as prism shape, and the prism shape is identical with the prism shape of the tightening piece, so that Wrench is by institute
It states tightening piece and the annular element while is screwed into or back-outs on matched screw rod.
An exemplary embodiment according to the present invention, wherein, the first side of the annular element is formed with second and is recessed
Portion sets second joint part on the bottom surface of second recess；
Wherein, the first end surfaces of the tightening piece are accommodated in second recess, first joint part with
Second joint part is combined.
An exemplary embodiment according to the present invention, wherein, opposite with first side of the annular element
Two sides are formed with ratchet, and the ratchet is constructed such that annular element and is more than tightening piece and ring by the frictional force between tightening member
Frictional force between shape part, so that annular element is compared with by tightening member and screw rod guarantor when tightening piece is compared with screw bolt loosening
It holds motionless.
An exemplary embodiment according to the present invention, wherein, the ratchet is configured to the second side in annular element
Surface on be arranged radially.
An 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.
An exemplary embodiment according to the present invention, wherein, the nut includes：
Main part, first end surfaces are formed on the main part；And
First protrusion, first protrusion extend from one end of the main part, and first protrusion is contained in
In the annular element.
An exemplary embodiment according to the present invention, wherein, the nut further comprises the second protrusion, described
Second protrusion extends from first protrusion, and the end of second protrusion forms the flange protruded outward；
The annular element includes recess, and the recess is from the second side opposite with the first side of the annular element along ring
Shape part is recessed axially inwards, and the flange is engaged with the bottom surface of the recess of the annular element so that the nut is opposite
It rotates but cannot depart from from the annular element in the annular element.
An exemplary embodiment according to the present invention, wherein, the flange is from described in second protrusion
What the first side of annular element was formed through the stamping process after reaching the second side through the annular element.
An exemplary embodiment according to the present invention, wherein, the nut is split part with the annular element.
An 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.
An exemplary embodiment according to the present invention, further comprises：
Pine moves back instruction device, and the pine, which moves back instruction device, to be included：
Detection unit, the detection unit are adapted to mount to detect the pine amount of moving back of the tightening piece in the tightening piece,
And export the data message of the pine amount of moving back on tightening piece；
Control unit, described control unit are configured to receive the data message of the detection unit output, and handle institute
State data message；
Display unit, the display unit are configured to tighten according to processed data message display instruction
The information of the pine amount of moving back of part.
An exemplary embodiment according to the present invention, wherein：
Described control unit and the display unit are arranged in terminal device,
The pine moves back instruction device and further comprises：
Wireless transmission unit, the wireless transmission unit are suitable for the data information transfer that the detection unit exports to institute
State control unit.
An exemplary embodiment according to the present invention, wherein：The terminal device is hand-held intelligent equipment or computer.
An exemplary embodiment according to the present invention, wherein the pine amount of moving back of the tightening piece detected is twisted to be described
Tight part compared with the annular element rotational angle.
An exemplary embodiment according to the present invention, wherein, described control unit moves back the pine of the tightening piece of detection
Amount with pine the amount of moving back predetermined limit value compared with, according to comparative result judge the pine of the tightening piece move back in normal condition,
Critical condition or alarm condition, and according to the different corresponding control instructions of state output and data.
An exemplary embodiment according to the present invention, wherein, described control unit is according to the tightening piece detected
The pine amount of moving back and the difference of the predetermined limit value of the loose amount of moving back determine that the pine of the tightening piece is moved back in normal condition, critical condition or report
Alert state, wherein, the normal condition is more than state during predetermined difference value for the difference；The critical condition is the difference
State during less than predetermined difference value；The alarm condition is the state when difference is equal to or less than 0.
The fastener of the various embodiments described above according to the present invention, the joint part for having helicoid using two, realizes
The further pine for inhibiting tightening piece when tightening piece pine moves back moves back, and has longer engagement between tightening piece and annular element
Face has higher locking stability.
Description of the drawings
The present invention with reference to the accompanying drawings to be further described, wherein：
Fig. 1 is the decomposition diagram for the fastener for showing a kind of exemplary embodiment according to the present invention；
Fig. 2 is the stereoscopic schematic diagram for showing fastener shown in Fig. 1；
Fig. 3 is the partial schematic sectional view for showing fastener shown in Fig. 2；
Fig. 4 is the stereoscopic schematic diagram for the nut for showing fastener shown in FIG. 1；
Fig. 5 is the stereoscopic schematic diagram for the annular element for showing fastener shown in FIG. 1；
Fig. 6 is another stereoscopic schematic diagram for the annular element for showing the fastener shown in Fig. 5；
Fig. 7 is the geometrical principle figure of the helix angle for the second oblique faying face for showing the annular element shown in Fig. 5；
Fig. 8 is the geometry original shown with the externally threaded helix angle of the screw rod of the tightening piece of the embodiment of the present invention cooperation
Reason figure；
Fig. 9 shows that the pine of the fastener of an exemplary embodiment according to the present invention moves back the principle box of instruction device
Figure；
Figure 10 shows that the pine of the fastener of an exemplary embodiment according to the present invention moves back the flow chart of instruction operation；
Figure 11 shows that the pine of the nut in the fastener of an exemplary embodiment according to the present invention moves back state as just
The stereoscopic schematic diagram of normal state；
Figure 12 shows that the pine of the nut in the fastener of an exemplary embodiment according to the present invention moves back state to face
The stereoscopic schematic diagram of boundary's state；
Figure 13 shows that the pine of the nut in the fastener of an exemplary embodiment according to the present invention moves back state as report
The stereoscopic schematic diagram of alert state；
Figure 14 is the decomposition diagram for the fastener for showing another exemplary embodiment according to the present invention；
Figure 15 is the partial schematic sectional view of the fastener shown in Figure 14；And
Figure 16 is the decomposition diagram for showing fastener according to another exemplary embodiment of the present invention,.
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.
Inventive concept generally according to the present invention provides a kind of fastener, including：Tightening piece, be configured to
Screw rod is coordinated to combine with fastening by fastener, sets that there are two the first joint parts on the first end surfaces of the tightening piece；And
Annular element, the annular element are coaxially disposed with the tightening piece, and setting two second on the first side surface of the annular element connects
Conjunction portion；Wherein, first joint part is engaged with the second joint part so that the tightening piece is hindered when tightening piece pine moves back
Further pine moves back.
According to an exemplary embodiment, fastener of the invention can be applied in Work machine, be used for example as engineering
The connector of creeper tread, chassis member in vehicle.Due to the severe applying working condition of Work machine, have in use compared with
The generation of big vibration and larger load, especially transverse load is so that the tightening piece in fastener can be with usage time
Passage and loosen.
It will be appreciated by those of skill in the art that annular element can cause by using various measures its with by tightening member shape
Into larger frictional force, and annular element and the friction between tightening piece and annular element is more than by the frictional force between tightening member
Power.In this way, under certain external force effect, when tightening piece is compared with screw bolt loosening, annular element remains stationary as.
According to an embodiment of the present, the tightening piece has four-prism shape, regular hexagonal prism shape or quincunx
Outer surface.As shown in figures 1 to 6, the tightening piece is nut 1, the nut and screw rod 100 (Fig. 8) thread fitting.Nut 1
Can be tetragonal nut, hex nut or horned nut.As shown in figure 16, the tightening piece be bolt head 200, the bolt
First 200 with 201 integrally connected of screw rod and together with rotate.In this way, bolt head 200 and screw rod 201 form a bolt.Bolt
First 200 can be corner bolt head, hexagonal bolt head or plum blossom bolt head.
Referring to Fig. 1-8, the fastener 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 Figure 4,5, first joint part are included in circumferencial direction
First oblique 121 and second blocking surface 122 of faying face of upper extension, second joint part include extend in a circumferential direction the
One oblique 211 and second blocking surface 212 of faying face, wherein the first oblique faying face 121 at first joint part is configured to and the
The first oblique faying face 211 at two joint parts is engaged contact, and second blocking surface 122 at first joint part is configured to and the
Second blocking surface 212 at two joint parts is engaged contact, to realize the engagement of nut and the annular element.
Fig. 7 shows the geometrical principle figure of the helix angle of the first oblique faying face of annular element 2.Fig. 8 is to show and the present invention
Embodiment nut cooperation screw rod externally threaded helix angle geometrical principle figure.The first of first joint part tiltedly combines
The first oblique faying face 211 at 121 and second joint part of face is respectively formed the helicoid with identical lift angle to cooperate.In Fig. 7
In, the left 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 the spiral shell with the embodiment of the present invention
The externally threaded lead angle of the screw rod 100 of mother's cooperation, d are screw flight major diameter, and d1 is screw flight path, and d2 is spiral shell
The pitch diameter of thread of bar.Since nut 1 and screw rod coordinate, the helix angle of the internal thread of nut 1 is also α.
A kind of exemplary embodiment according to the present invention, as shown in Fig. 2,5, the first oblique faying face at first joint part
121 and second the first oblique faying face 211 at joint part be respectively formed the helicoid with identical lift angle to cooperate.Helicoid
Helix angle φ is more than the lead angle α of the internal thread, in the spiral of the helicoid on the second joint part of the annular element
Direction and the internal thread risen to screw direction opposite.In this way, it is static compared with screw rod 100 in annular element 2, and 1 phase of nut
In the case of rotating predetermined angular for screw rod 100, the outside of nut 1 is (in Fig. 3 upward in axis direction compared with annular element 2
Direction) on climb altitude be more than nut on the inside of compared with screw flight on axis direction (upwardly direction in Fig. 3)
Pine moves back height, since screw rod is static compared with annular element, so that nut 1 is stretched for matched screw rod, i.e. and spiral shell
It is female further to compress annular element so that annular element is further compressed by fastener.Therefore, annular element has the work of lock washer
With.
Those skilled in the art it is also understood that corresponding to different helix angles, the internal thread of screw connector
Lead angle will also adjust accordingly.
First joint part and matched second joint part are two in the present invention.First joint part and second
Joint part is distributed respectively along the circumferencial direction of the first faying face of place and the second faying face.For multiple joint parts, such as six connect
The situation in conjunction portion, since the helicoid for each joint part is shorter, rotatable angle is smaller during nut loosening,
When rotational angle is more than such as 60 °, the first oblique faying face at the first joint part is tiltedly tied from the first of corresponding second joint part
Depart from conjunction face and combined with the first oblique faying face at next second joint part on loosening direction, nut is compared with ring at this time
The climb altitude of shape part falls, and the climb altitude on the outside of nut is no larger than on the inside of nut compared with screw flight in axis side
Pine in (upwardly direction in Fig. 3) moves back height, therefore fastener no longer plays an important role of that the further pine of nut is hindered to move back.
And for the embodiment at two joint parts, since the helicoid for each joint part is longer, maximum allowable spiral shell
Mother's loosening angle is larger, therefore can ensure to may have hindering nut further loose in the stroke of larger nut loosening
The function of moving back.And the structure at two joint parts is for multiple joint parts, can reduce processed complex degree and corresponding
Processing cost.
A kind of exemplary embodiment according to the present invention, wherein, in order to enable when nut and annular element installation combine, institute
State the second blocking surface 122,212 and abut against to realize being mutually located for nut and annular element, and prevent nut with internal thread
Screw rotation of the identical direction in direction compared with annular element, the angle phase of second blocking surface 122,212 and horizontal plane
Together, obtuse angle or right angle are disposed as and.As shown in Figures 4 and 5, the angle of second blocking surface 122,212 and horizontal plane is straight
Angle or parallel to axis.
A kind of exemplary embodiment according to the present invention, as shown in fig. 6, the annular element is close by the one of tightening member
It is formed with ratchet 23 on the surface of side, the ratchet 23 is constructed such that annular element 2 and big by the frictional force between tightening member
Frictional force between nut and annular element 2, so that annular element 2 is compared with being fastened when nut 1 is compared with screw bolt loosening
Element remains stationary as.
A kind of exemplary embodiment according to the present invention, the ratchet 23 are configured to as shown in Figure 6 in the close of annular element
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 joint part and is engaged
The second joint part quantity, the ratchet of compact arranged radial setting causes annular element 2 and generated between tightening member
Larger frictional force, the frictional force are more than the frictional force between nut 1 and annular element 2 so that 2 phase of annular element in nut loosening
For being remained stationary as by tightening member.
A kind of exemplary embodiment according to the present invention, as shown in figure 3, the nut 1 includes main part 11 and first
Protrusion 12, first end surfaces are formed on the main part, and then first joint part is formed in the main part
On 11.First protrusion 12 extends from one end of the main part and is contained in the annular element 2.
A kind of exemplary embodiment according to the present invention, as shown in Fig. 1,3,6, the annular element includes having the first internal diameter
The first cylindrical portion 21 and the second cylindrical portion 22 with second internal diameter bigger than the first internal diameter of first cylindrical portion.
First cylindrical portion 21 of annular element 2 has the exterior contour identical with the main part 11 of nut 1, and the second knot of annular element 2
Conjunction portion is formed on the end surface of the first cylindrical portion 21.In this way, when nut 1 and annular element 2 combine, the master of nut is formed in
The first engaging portion and the second engaging portion of annular element 2 on first end surfaces in body portion combine togather, and allow one
A Wrench (not shown) is sleeved on simultaneously on the main part of nut and the first cylindrical portion of annular element, and drive simultaneously nut and
Annular element rotates.
A kind of exemplary embodiment according to the present invention, as shown in Fig. 3,6, the annular element includes recess, described recessed
It, should into portion from the second side (downside in Fig. 3) being axially inwards recessed along annular element opposite with the first side of the annular element
Recess has bottom surface 211.
The nut further comprises the second protrusion 13, and second protrusion 13 prolongs from first protrusion 12
It stretches, the end of second protrusion forms the flange protruded outward, and the flange has more larger than the internal diameter of the first cylindrical portion
Outer diameter.In this way, flange is resisted against on bottom surface 211 so that the nut rotates compared with the annular element but cannot be from described
Annular element departs from.In one embodiment, by setting the height in gap of the flange in the axial direction between bottom surface 211 small
In the height in the axial direction of the first and second blocking surfaces, it can make nut 1 that can only rotate predetermined angle compared with annular element 2
Scope is spent, so that the distance that bolt is stretched in the axial direction is less than 1.0mm.
A kind of exemplary embodiment according to the present invention, the flange are from the annular in second protrusion 13
What the first side of part was formed through the stamping process after reaching the second side through the annular element.
According to an exemplary embodiment, the nut 1 and the annular element 2 or split part, only when in use
Ability temporary fit uses.
According to another exemplary embodiment, as shown in Figure 14,15, fastener includes：Nut 1 ', the nut it is interior
Screw thread is combined with the external screw thread on cooperation screw rod, and there are two the first joint parts for setting on the first end surfaces of the nut；And
Annular element 2 ', the annular element 2 ' are coaxially disposed with the nut 1 ', and two are set on the first side surface of the annular element 2 '
Second joint part, wherein, first joint part is engaged with the second joint part so that the nut is hindered when nut pine moves back
Further pine move back.
Further, the first side of the annular element 2 ' is formed with the recessed of the internal diameter of the internal diameter bigger of the endoporus than annular element
Into portion 22 ', second joint part is set on the bottom surface of the recess 22 '；First end surfaces of the nut are accommodated in
In second recess, first joint part is combined with second joint part.
According to a kind of exemplary embodiment, nut 1 ' includes main part 11 ' and the first protrusion 12 '.The nut
The first joint part be formed on the end face of first protrusion 12 ' (as shown in figure 14), the end face of first protrusion 12 '
It is accommodated in the recess 22 ' so that the first joint part is combined with the second joint part.However, those skilled in the art
It is appreciated that the first protrusion can not also be set, and the first joint part is formed on the end face of the main part of nut, the master
The end face in body portion is contained in recess 22 '.
According to the nut fastener of the embodiment with recess 22 ', by the way that the end face where the first joint part is accommodated
In the recess, the faying face of nut 1 ' and annular element 2 ' is hidden within annular element 2 ', is reduced in severe work
Foreign matter enters between faying face to influence the possibility of fastener performance under condition so that nut fastener is more stable and reliable.
Figure 16 is the decomposition diagram for showing fastener according to another exemplary embodiment of the present invention,；Shown in Figure 16
Fastener 20 and Fig. 1-6 shown in fastener the difference is that, in the fastener 20 shown in Figure 16, tightening piece be with
201 integrally connected of screw rod and the bolt head 200 rotated together with screw rod 201.
Referring to Figure 16, fastener 20 includes bolt and annular element 2, and bolt includes integrally connected and the bolt head rotated together
200 and with threaded portion 2011 screw rod 201.Set that there are two the on the first end surfaces (lower surface in Figure 16) of bolt head
One joint part.Annular element 2 is coaxially disposed with bolt head, and the first side (upside in Figure 16) of the annular element is provided with two
A second joint part, first joint part are engaged with the second joint part so that hinder the spiral shell when 200 pine of bolt head moves back
The further pine of bolt first 200 moves back.
The structure and combination at second joint part at the first joint part and annular element for bolt head and institute in Fig. 1-6
The structure of the nut shown is identical with combination, and details are not described herein.
An exemplary embodiment according to the present invention, as shown in Fig. 1,9-13, in order to enable the anti-loosening property of tightening piece
It is more reliable, pine is provided on fastener and moves back instruction device 4, is still illustrated below by taking tightening piece is the fastener of nut as an example.
The pine, which moves back instruction device, to be included：Detection unit 401, the detection unit 401 are adapted to mount on the nut
To detect the pine amount of moving back of the nut, and export the data message of the pine amount of moving back on nut；Control unit 402, the control
Unit 402 is configured to receive the data message that the detection unit 401 exports, and analyzes the data message, and exports control
Instruction and data；Display unit 403, the display unit 403 receive the control instruction sum number sent from described control unit 402
According to so as to show the information for the pine amount of moving back for indicating the nut.
An exemplary embodiment according to the present invention, as shown in Fig. 1,16, the detection unit 401 is arranged to embedding
Enter in the fastener.
It will be understood by those skilled in the art that according to an exemplary embodiment, as shown in figure 9, described control unit
402 and the display unit 403 can be arranged in terminal device, the terminal device can be hand-held intelligent equipment or computer,
At this point, pine, which moves back instruction device 4, further comprises wireless transmission unit 404, the wireless transmission unit 404 is suitable for the detection
The data information transfer of unit output is to the described control unit 402 in the terminal device.Those skilled in the art can
To understand, wireless transmission unit be only by a kind of illustrative mode of data information transfer, others using cable or
The transmission mode of Bluetooth technology etc. can also be used.
The detection unit 401 may include the detecting element such as angular transducer, displacement sensor.It is according to the present invention
One exemplary embodiment, wherein the pine amount of moving back of the nut detected is the rotational angle of the nut.When 1 pine of nut
When moving angle as figs 11-13, such as the detection unit 401 including angular transducer is correspondingly detected as shake allowance
Loosening angle different value.
An exemplary embodiment according to the present invention, the display unit 403 are sent according to described control unit
Control instruction and data and show the pine amount of moving back of the nut.Such as the pine of display fastener moves back angle as 40 ° etc..
An exemplary embodiment according to the present invention, described control unit 402 by the pine amount of moving back of the nut of detection with
The predetermined limit value of the pine amount of moving back compares, and judges that the pine of the nut is moved back in normal condition, critical shape according to comparative result
State or alarm condition, and according to the different corresponding control instructions of state output and data.
An exemplary embodiment according to the present invention, described control unit by the pine amount of moving back of the nut detected with pine
The predetermined limit value for the amount of moving back compares, and show that the predetermined limit value of the loose amount of moving back subtracts the difference of the pine amount of moving back of the tight nut of detection,
And judge that the pine of the nut is moved back in normal condition, critical condition or alarm condition according to the difference；Wherein, it is described normal
State is more than state during predetermined difference value for the difference；The critical condition is less than shape during predetermined difference value for the difference
State；The alarm condition is the state when difference is equal to or less than 0.In the critical condition, nut still can normally make
With, but need to give and pay attention to.In alarm condition, represent that the pine amount of moving back of the nut detected beyond predetermined limiting value, then needs
Make corresponding processing.
It will be understood by those skilled in the art that object difference used in fastener and the operating mode faced are different, then
Permitted predetermined limit value is also different, therefore, different predetermined limit values can be set for different operating modes, such as vibration
The less high situation of larger operating mode and requirement connection precision, can set larger such as pine to move back the predetermined limit value of angle.
And for the higher operating mode of connection fastening required precision, then smaller predetermined limit value is set so that the fastener can be cleverer
Reflect influence of the vibration for fastener quickly, to aid in determining whether to need to tighten or replace fastener.The predetermined pole
Limit value can be set in a control unit when manufacturing fastener, also can by user when installing fastener according to specific operating mode
It needs to preset and stored in a control unit with the attainable performance of fastener.
An exemplary embodiment according to the present invention, pine move back instruction device 4 and further comprise being arranged on terminal device
In user setting unit 406, wherein the user setting unit 406 receives the predetermined limit value of the pine amount of moving back input by user,
And the predetermined limit value is sent to described control unit 402, described control unit 402 receives and preserves the preset limit
Value, the judgement of state is moved back for the pine of fastener.
An exemplary embodiment according to the present invention, the display unit 403 include lamplight pointing unit 4031, institute
The different control instructions and data that display unit is exported according to described control unit 402 are stated, pass through the lamplight pointing unit
Indicate normal condition, critical condition or alarm condition that the pine of nut moves back.For example, the lamplight pointing unit 4031 may include it is red
Lamp, amber light and green light.The lamplight pointing unit can default setting be green light, represent that the pine of fastener is moved back in normal condition.
When control unit judges that the pine of the nut is moved back in critical condition or alarm condition, corresponding control instruction is exported to lamp
Light indicating member 4031, to light amber light (corresponding critical condition) or red light (corresponding alarm condition).
An exemplary embodiment according to the present invention, the pine, which moves back instruction device 4, can further comprise that sound is warned
Show unit 405, the sound alarm unit 405 receives the control instruction from described control unit 402 and sends corresponding police
Show sound, the pine amount of moving back of the nut is warned to be in critical condition or alarm condition.Those skilled in the art can be used in the caution sound
It is contemplated that the caution sound such as artificial speech or whistle, as long as distinguishing critical caution sound and alarm sound.
Below by taking tightening piece is the fastener of nut as an example, exemplary implementation according to the present invention is described with reference to attached drawing 1-15
The operating process of the fastener of example：
By the fastener application of the embodiment of the present invention when such as engineering truck is for fastening by fastener, by 1 He of nut
Annular element 2 aligns, i.e., so that second blocking surface 212 at the first joint part is engaged with second blocking surface 122 at the second joint part,
To prevent nut from screwing rotation of the identical direction in direction compared with annular element with nut inner thread.It is filled by using spanner
It puts and fastener is integrally tightened onto by tightening member in the identical direction in direction that screws with nut inner thread, apply pretightning force
And fastening will be clamped by tightening member.
Open the pine and move back instruction device 4, the embodiment of instruction device is moved back for the pine with user setting unit, by with
Family sets the predetermined limit value of the loose amount of moving back.
The pine that can generate nut 1 with the passage of usage time moves back.Due to annular element 2 and by the frictional force between tightening member
More than the frictional force between nut and annular element, when nut 1 is compared with 2 preliminary motion of annular element, annular element 2 is compared with screw rod
It remains stationary as.The preliminary motion is along the first mitre joint face 121 at the first joint part for being engaged contact and the second joint part
The first oblique faying face 211 carry out.As shown in Figure 2-5, since the first mitre joint face 121 and the first oblique faying face 211 are formed
For helicoid, the helix angle of the helicoid is more than the lead angle of the internal thread.Then when nut pine moves back, retreated in pine
In the case of dynamic certain angle, since nut 1 is moved along the first mitre joint face 121 and 211 along helix angle direction, outside nut
The climbing height of side is more than the height that is exited from the external screw thread of matched screw rod of inside thread of nut, so as to formed for
The stretching of matched screw rod.Therefore, the coupling mechanism force of bigger, the coupling mechanism force are formed at internal thread and externally threaded mating connection
The further pine for inhibiting nut 1 moves back.And matched screw rod generates nut 1 the opposite pulling force towards annular element 2, makes
Nut 1 downwardly against the annular element 2, annular element 2 is further compressed by fastener, thus annular element 2 with by tightening member
Between frictional force bigger, inhibit the movement of fastener.It is moved back in this way, nut is more loose, due to helix angle and lead angle not
It is same and generation bigger to the stretching of screw rod, so as to which coupling mechanism force is bigger, nut is caused to be less susceptible to loosen.
In the process, detection unit 401 detects the pine amount of moving back of nut, and exports the data letter of the pine amount of moving back on nut
Breath；Described control unit 402 receives the data message from detection unit, and analyzes the data message, and control unit is by spiral shell
The pine that female pine amount of moving back subtracts the nut of detection with compared with the predetermined limit value of the loose amount of moving back, obtaining the predetermined limit value of the pine amount of moving back
The difference for the amount of moving back, and judge that the pine of the fastener is moved back in normal condition, critical condition or alarm condition according to the difference.
And according to the state control display unit and sound alarm unit judged, to warn the supervisor of terminal device or fastening
The operator of machinery where part.After vibration or the excessive angle for so that nut pine moves back of load reach alarm condition, bolt
The safety margins of permission is stretched beyond, it is necessary to make corresponding processing.
It is installed by the way that pine is moved back instruction device on the fastener of this structure, since the structure itself of the fastener can inhibit
Pine moves back, therefore provides multiple guarantee to the anti-loose of fastener, reaches more stable security performance.
Fastener described in above-mentioned various embodiments according to the present invention, the joint part for having helicoid using two are real
Show and inhibited the further pine of nut when nut pine moves back and move back, and there is longer composition surface between nut and annular element,
Available for vibrating larger occasion, and manufacturing process is simple, has higher locking stability.Meanwhile fastener of the invention
By setting detection unit on fastener, the shake allowance of fastener is detected in real time, and shows that pine moves back by display unit
It measures and caution sound is sent by sound alarming device to remind user.Fastening can be shown in real time by the apparatus and method
The pine amount of moving back of part more intuitively, can remind the excessive pine amount of moving back in critical condition or alarm condition, play in time
Good safety precaution effect.The installation of the fastener of the present invention need not increase instrument, easy to operate and have wide range of applications.
The place of any fastener connection is can be applied to, in particular for there is the occasion of high vibration or dynamic 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.
Although with reference to attached drawing, the present invention is described, and the embodiment disclosed in attached drawing is intended to preferred to the present invention
Embodiment illustrates, and it is not intended that a kind of limitation of the invention.
Although some embodiments of this present general inventive concept have been shown and have illustrated, those of ordinary skill in the art will manage
Solution in the case of without departing substantially from the principle of this present general inventive concept and spirit, can make a change these embodiments, of the invention
Scope is limited with claim and their equivalent.
It should be noted that word " comprising " is not excluded for other element or steps, word "a" or "an" is not excluded for multiple.Separately
Outside, the scope that any element label of claim should not be construed as limiting the invention.
Claims (20)
1. a kind of fastener, including：
Tightening piece is configured to be combined with fastening by fastener with cooperation screw rod, be set on the first end surfaces of the tightening piece
There are two the first joint parts；And
Annular element, the annular element and the tightening piece are coaxially disposed, and two the are set on the first side surface of the annular element
Two joint parts；
Wherein, first joint part is engaged with the second joint part so that the tightening piece is hindered when tightening piece pine moves back
Further pine moves back.
2. fastener according to claim 1, wherein, first joint part includes extend in a circumferential direction first
Oblique faying face and the second blocking surface, second joint part include the first oblique faying face extended in a circumferential direction and the second resistance
Block face, wherein the first oblique faying face at first joint part is configured to be engaged with the first oblique faying face at the second joint part
Contact, second blocking surface at first joint part are configured to be engaged with second blocking surface at the second joint part and contact, with
Realize tightening piece and the engagement of the annular element.
3. fastener according to claim 2, wherein, the first oblique faying face at first joint part and the second joint part
The first oblique faying face be respectively formed the helicoid with identical lift angle to cooperate, the helix angle of the helicoid is more than institute
It states and coordinates screw flight lift angle, the spiralling direction of the helicoid on the second joint part of the annular element is matched somebody with somebody with described
Close screw rod to screw direction opposite.
4. the fastener according to Claims 2 or 3, wherein, second blocking surface at first joint part and the second engagement
Second blocking surface in portion is identical with the angle of horizontal plane, and is obtuse angle or right angle.
5. fastener according to claim 1, wherein, the annular element includes：First cylindrical portion, first cylindrical portion
Be formed as prism shape, the prism shape is identical with the prism shape of the tightening piece, so that Wrench is by the tightening piece
It is screwed into or back-outs on matched screw rod simultaneously with the annular element.
6. fastener according to claim 1, wherein, the first side of the annular element is formed with the second recess, described
Second joint part is set on the bottom surface of the second recess；
Wherein, the first end surfaces of the tightening piece are accommodated in second recess, first joint part with it is described
Second joint part is combined.
7. fastener according to claim 1, wherein, the second side opposite with first side of the annular element is formed
There is ratchet, the ratchet is constructed such that annular element and is more than by the frictional force between tightening member between tightening piece and annular element
Frictional force so that annular element is remained stationary as compared with by tightening member and screw rod when tightening piece is compared with screw bolt loosening.
8. fastener according to claim 7, wherein, the ratchet is configured on the surface of the second side of annular element
It is arranged radially.
9. according to claim 1-8 any one of them fasteners, wherein, the tightening piece is nut, the nut with it is described
Coordinate screw flight cooperation.
10. fastener according to claim 9, wherein, the nut includes：
Main part, first end surfaces are formed on the main part；And
First protrusion, first protrusion extend from one end of the main part, and first protrusion is contained in described
In annular element.
11. fastener according to claim 10, wherein, the nut further comprises the second protrusion, described second
Protrusion extends from first protrusion, and the end of second protrusion forms the flange protruded outward；
The annular element includes recess, and the recess is from the second side opposite with the first side of the annular element along annular element
Be recessed axially inwards, the flange is engaged with the bottom surface of the recess of the annular element so that the nut is compared with institute
Annular element is stated to rotate but from the annular element cannot depart from.
12. fastener according to claim 11, wherein, the flange is from the annular element in second protrusion
The first side reach the second side through the annular element after formed through the stamping process.
13. fastener according to claim 9, wherein, the nut is split part with the annular element.
14. the fastener as described in any one of claim 1-8, wherein, the tightening piece is bolt head, the bolt head
With it is described cooperation screw rod integrally connected and together with rotate.
15. according to claim 1-14 any one of them fasteners, further comprise：
Pine moves back instruction device, and the pine, which moves back instruction device, to be included：
Detection unit, the detection unit are adapted to mount to detect the pine amount of moving back of the tightening piece in the tightening piece, and defeated
Go out the data message of the pine amount of moving back on tightening piece；
Control unit, described control unit are configured to receive the data message of the detection unit output, and handle the number
It is believed that breath；
Display unit, the display unit are configured to indicate the tightening piece according to processed data message display
The information of the pine amount of moving back.
16. fastener according to claim 15, wherein：
Described control unit and the display unit are arranged in terminal device,
The pine moves back instruction device and further comprises：
Wireless transmission unit, the wireless transmission unit are suitable for the data information transfer that the detection unit exports to the control
Unit processed.
17. fastener according to claim 16, wherein：
The terminal device is hand-held intelligent equipment or computer.
18. fastener according to claim 15, wherein the pine amount of moving back of the tightening piece detected is the tightening piece
Compared with the rotational angle of the annular element.
19. fastener according to claim 15, wherein, described control unit is by the pine amount of moving back of the tightening piece of detection and pine
The predetermined limit value for the amount of moving back compares, and judges that the pine of the tightening piece is moved back in normal condition, critical shape according to comparative result
State or alarm condition, and according to the different corresponding control instructions of state output and data.
20. fastener according to claim 19, wherein, described control unit is according to the pine amount of moving back of the tightening piece detected
Determine that the pine of the tightening piece is moved back in normal condition, critical condition or alarm shape with the difference of the predetermined limit value of the loose amount of moving back
State,
Wherein, the normal condition is the state when difference is more than predetermined difference value；
The critical condition is less than state during predetermined difference value for the difference；
The alarm condition is the state when difference is equal to or less than 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032693.8A CN108071649A (en) | 2016-11-16 | 2016-11-16 | Fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032693.8A CN108071649A (en) | 2016-11-16 | 2016-11-16 | Fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071649A true CN108071649A (en) | 2018-05-25 |
Family
ID=62161428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611032693.8A Pending CN108071649A (en) | 2016-11-16 | 2016-11-16 | Fastener |
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| CN (1) | CN108071649A (en) |
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| CN111649048A (en) * | 2020-07-06 | 2020-09-11 | 罗章平 | Locknut external member |
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