CN106246697A - A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system - Google Patents
A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system Download PDFInfo
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- CN106246697A CN106246697A CN201610796027.5A CN201610796027A CN106246697A CN 106246697 A CN106246697 A CN 106246697A CN 201610796027 A CN201610796027 A CN 201610796027A CN 106246697 A CN106246697 A CN 106246697A
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- spline
- hole
- locking nut
- screw rod
- pad
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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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
A kind of fastening structure, including being fastenedly connected assembly, parent, attached body；It is fastenedly connected assembly and includes screw rod, locking nut, spline set；An end face of spline set is axially convexly equipped with constraint spline set and unscrews, towards screw rod, the spline set spline boss that direction rotates；Parent and attached body are fastened together by screw rod with locking nut；Spline set is arranged on outside locking nut, spline set spline boss inserts in attached body spline hole, and spline set by axial limiting outside locking nut, spline set spline boss is kept out constraint spline set by attached body spline hole and is rotated relative to attached body unscrewing the side in direction towards locking nut；Parent, attached body are non-rotatably fastened together by screw rod and locking nut.Advantage is to need not spline part, it is not required that processing spline hole on attached body, the installation of spline set is taken out quick and easy, reliable, and screw rod will not invert and get loose.
Description
Technical field:
The present invention relates to a kind of screw thread pair machinery static plural object of connection is fastenedly connected technology；Particularly relate to
One connects crankshaft connecting rod system, track structure, aircraft, boats and ships, equipment, Aero-Space by screw rod and locking nut machinery static
Equipment, aircraft carrier, airship, rocket, electromotor, nuclear reaction equipment, train, high ferro, rail, steel building, steel structure bridge, vapour
The fastening structure of the machine components on key position, spline structure in car etc. plant equipment, it is fastenedly connected assembly, song
Axle linkage, the use environment of these machine components is severe especially as vibrations are big, hot environment, load are big, and to screw thread
The connection reliability of slave tool static connection requires the highest.
Background technology
Screw thread pair machinery static between object couples the bolt fracture some key positions occur and connecting, threaded inefficacy
The safety problem caused and security incident, through being commonly encountered, be the common fault that faces of the whole world, be also that those skilled in the art constantly grinds
Study carefully improvement also open question anxious to be resolved.Stove bolt, major break down, often because of bolt fracture generation major accident, such as vapour
The connecting-rod bolts fracture of the electromotor of car causes smashes cylinder accident；The Harbin tower crane bolt fracture that on April 18th, 2009 occurs is made
The accident of 1 dead 4 wounds become；Detect 7 anchor bolt fractures according to number machine reacting furnace of core two factory of Taiwan media report, damaging can
The accident of nuclear safety can be caused；During 29 days 16 June in 2012 45 distributions raw, the middle guide pillar bolt of No. 5 passenger cabin support systems sends out
Give birth to fatigue fracture, cause Shenzhen Eastern Chinese Overseas Town " star trek " entertainment selection that the considerable safety that 6 people are dead, 10 people are injured occurs
Accident；As the representative producer of high-end vehicles, because the technical problem of broken screw cannot be solved, cause BMW electromotor coping screw
The fracture moment misfire event that runs out of steam causes recalling 230,000 cars (BMW (Chinese) automotive trade company limited, Huachen BMW
Automobile Co., Ltd. determined from 18 days June in 2014, recalled 230,000 cars), manufacturing firm is by tremendous economic loss and business
Reputation loss, more seriously can cause the security of the lives and property of car owner.Although under many circumstances, particularly at vibrational state
Under, it is often necessary to the fastening connection piece periodic inspection locked is reinforced, prevents screw thread pair from rotating and loosen very towards unscrewing direction
To being the security incident brought that gets loose, but the whole world annual because a series of security incidents of causing of threaded inefficacy very
Many, example is too numerous to enumerate.
Threaded reliability is that the friction that the friction by screw thread pair produces between the contact surface of self-locking and screw thread pair comes
Ensure.In general, connect screw thread and there is certain self-locking performance, can't automatically get loose under static load conditions.But, due to
Inevitably there is shock and vibration, varying load effect in the working condition connected.Under these working conditions, screw thread pair it
Between frictional force there will be momentary loss or reduction；Simultaneously in the occasion that high temperature or variations in temperature are bigger, material can occur compacted
Strain and stress relaxes, and frictional force also can be made to reduce.Under repeatedly effect, will result in threaded gradually getting loose.
Threaded inefficacy, is primarily due to pretightning force minimizing and causes screw thread to get loose, therefore thread connection anti-loose
Essence, it is simply that prevent screw thread pair towards unscrew direction rotate (namely between internal thread hole and external thread part towards the side of unscrewing
To rotating), rotate as the court between bolts and nuts unscrews direction.
Existing mechanical anti-loose method mainly includes utilizing the machineries such as split pin, locked spacer and string steel wire rope locking
Method.The most a lot of anti-loose methods also using series connection steel wire rope.
In order to prevent threaded getting loose, people are always in unremitting effort.
Patent No. US1755807,6 days April nineteen twenty-nine of filing date, publication date are that the U.S. in April 22 nineteen thirty is special
In profit, disclose a kind of locking bolt and nut structure, including screw rod, locking nut, spline set.Screw thread it is provided with in locking nut
Through hole and the spline hole of internal tooth wheel shape communicated therewith, the minimum-value aperture in spline hole is more than the aperture of tapped through hole.Spline is sheathed
Having spline through hole, spline set periphery is external tooth wheel shape, and spline through hole hole wall is provided with spline bar, is provided with and spline bar on screw rod
The spline groove coordinated.The external tooth wheel shape periphery of spline set and locking nut spline hole gerotor type hole wall fiting constraint locking nut
Rotating relative to spline set, the spline set of spline set inserts the spline groove constraint screw rod of screw rod and rotates relative to spline set, therefore screw rod
Together with being nonrotatably mounted tO with locking nut.In this patent, owing to spline set is contained in the spline hole of locking nut completely
In, spline set is difficult to take out from the spline hole of locking nut；And screw rod, nut use during, due to spline set,
Screw rod and nut get rusty, dust enters between spline set and screw rod and nut, spline set and screw rod and nut the meeting such as interpenetrate
Cause and between spline set and bolt and nut, produce the biggest gmatjpdumamics, thus cause spline set cannot take out between screw rod and nut.
If spline set is difficult to or cannot take out between screw rod and nut, it is difficult to maybe cannot be separated with screw rod by nut, thus but loses
Go to use screw thread pair to connect and be contemplated to the most basic purposes that can be separated with nut by screw rod easily, thus this spiral shell
Bar and nut structure are not have great use value.
Patent No. ZL201510198765.5, application publication number are CN 104819197A, filing date in April, 2015
24 days, date of publication be on August 6th, 2015 patent of invention in, a kind of Anti-loosening nut attachment structure, including connector and pass
The screw rod of connector, screw rod screws nut by connector fasten, outside nut be socketed a locking lasso, locking lasso be connected
Being provided with anti-rotational structure between part, anti-rotational structure includes the deep gouge that on connector, corresponding nut is arranged, and after nut screws, bottom sets
In deep gouge, locking lasso outer ring is provided with dop, and deep gouge medial wall is provided with the draw-in groove snapped in for dop；Locking lasso height is less than
The height of deep gouge, is interference fit between locking lasso and nut and deep gouge.The Anti-loosening nut attachment structure of this invention, due to
Adding a locking lasso, and be provided with anti-rotational structure between locking lasso and connector, locking lasso inner ring is for join with nut
The regular hexagon structure closed, can not rotate against between locking lasso inner ring and nut, and anti-rotational structure prevents locking lasso simultaneously
Rotate against with connector, thus loosen after being possible to prevent nut fastening.This Anti-loosening nut attachment structure, although achieve
Prevent loosening of nut, but on the one hand due to locking lasso height less than the height of deep gouge, locking lasso and nut and deep gouge it
Between be interference fit, dismantle Anti-loosening nut attachment structure time, locking lasso is cannot to take out in deep gouge, it is impossible to take
Go out locking lasso, just nut cannot be separated with screw rod, thus but lose use screw thread pair and connect that be contemplated to can
The most basic purposes easily screw rod separated with nut, thus this structure is less than in all senses；On the other hand,
Deep gouge medial wall is provided with the draw-in groove snapped in for dop, this notch cannot machining out, if not prior and quilt
Connector molding together, then need just can process by techniques such as electric sparks, thus use cost be the highest；Further, if
Not to screw rod spline, screw rod still can rotate relative to locking nut, is also only not have any realistic meaning to nut spline.Above-mentioned
Various reasons, those skilled in the art can be made to think, and the technical scheme of this invention, without any use value, hinders this significantly
The technical staff in field improves the enthusiasm of the technical scheme of this patent.
Patent No. ZL97112246.6, publication date are in the patent of invention of 97112246.6, disclose a kind of locking spiral shell
Mother, including tool mounting-portion and be coaxial therewith projecting upwards the annular protrusion of setting, between which has through screwed hole.This
Plant stop nut, it is simply that HardLock nut, be known as the most unique exhausted tight nut, be Hadlock industry strain formula
A president Ruo Linke man of virtue and ability for commercial firm has used the time of nearly 20 years, the technological achievement found out by continuous technological improvement, now
In high ferro, Application comparison is many.During high ferro operation, the train run at high speed constantly contacts with rail, and the vibrations of formation are very big, and one
As screw can be quaked loose shake in this vibrations and fly.It is not desired to be shaken fly, then be accomplished by screw and nut is intricately woven together, never
Loosen.This requires to seem very simple, but is intended to meet it and is not easy to.High ferro represents Created in China, but with Japan
Nut, thus have media to send the exclamation of the similar gap finding out made in China and Japan's manufacture from a nut.But this spiral shell
Female manufacturing process is extremely complex, and the accuracy of manufacture requires the highest, and present situation is, has product figure, has product, does not has Ha Deluo
Unique technology of gram company and tricks of the trade, but cannot manufacture, thus expensive, at least tens yuans；This spiral shell
Mother also cannot accomplish the most loose, and simply in existing stop nut, anti-loosing effect is calculated well；This nut, reuses
Cannot use again after tens times.
In the utility model patent of Patent No. ZL201520399393.8, disclose a kind of from jack panel, bolt fastening
Part, securing member includes self-tightening nut body, self-tightening packing ring and plain bolt；Self-tightening nut body and self-tightening washer contacts face are flat
Slip over the helicoid crossed；Self-tightening nut body is threadeded with plain bolt；Bolt fastener includes self-locking bolt, self-tightening packing ring
And plain nut；Plain nut is threadeded with self-locking bolt.Autofrettage should be used, at spiral shell from jack panel, bolt fastener
On mother or bolt, a self-tightening structure is set so that it is after locking, reach the effect of self-tightening, allows nut displacement no longer occur or loosens.
Oneself nut this, also known as self-tightening king's nut and the nut of never becoming loose, and declare its anti-loose ability more than hardlock nut,
CCTV has been reported that.This nut is not owing to being widely used, and its anti-loosing effect how, it is impossible to judge.
Publication No. CN201934467U, publication date are in the utility model patent on August 17th, 2011, disclose one
Front-end single-threaded spiral rear double-line anchoring screw, it mainly includes screw rod, and screw rod is provided with tapping screw thread, and screw rod tail end is provided with
Connection member, connection member is outer-hexagonal head, and outer-hexagonal head is provided with pad, is provided with locking teeth bottom pad.This practicality
In novel, disclosed is only a kind of bolt structure, and described all structures are all parts for bolt structure, from figure and outer six
From the point of view of angle head is provided with on the literal expression of pad, all can be interpreted as that pad is a part for screw undoubtedly, therefore not deposit
Being provided with the spline through hole coordinated with outer-hexagonal head on pad, pad is arranged on outside outer-hexagonal head, and pad and screw rod are separately
Two components.Owing to pad is a part for screw, during the screw-in of screw, the locking teeth on pad and pad also with
Screw rod to rotate together, although being so provided with locking teeth on pad, locking teeth is only not when embedding connected object
Axially embed connected object, but produce axial and circumferential displacement in the process rotated and embed connected object, so
During screw rotates, locking teeth can form one along screw screw-in direction from-shallow-to-deep on the surface of connected object
Circumferential slot.On the one hand circumferential slot destroys the attractive in appearance of connected object outward appearance；On the other hand locking teeth it is greatly reduced with connected
The insertion force of object, it may be said that locking teeth is extremely limited to the reverse anti-loose effect of screw；Especially because embedding tooth
Existence, make screw be difficult to the object that locking is connected.The locking teeth of the screw of the most this structure, has been not the work loosened
, the screw of this structure, there is no any use value.
From Patent No. US1755807, the United States Patent (USP) in 6 days April nineteen twenty-nine of filing date, invent and come with spline set
Limit the loosing Prevention Technology that bolt opposing nut rotates, to Patent No. ZL201510198765.5, filing date April 24 in 2015
In the Chinese invention patent of day, again propose spline set and limit the technical scheme of nut rotation, last 86 years, all do not have
Solution can locking to screw bolt and nut with spline set or locking to screw bolt and nut with spline set, again can fast and easy reliable
Spline set is taken out from spline hole so that the technical problem separated of screw bolt and nut.Existing think that anti-loosing effect is good
Hardlock nut, self-tightening king's nut, all locking not by using spline set to stop nut rotation to realize bolt and nut；Hurry up
Oneth century went over, also not over using spline set to stop nut rotation to realize the technology application that bolt and nut is locking；
Visible, though people be absorbed in employing spline set can stop nut rotation to realize that bolt and nut is locking bolt and nut very
The difficult technology mistaken ideas maybe cannot dismantled, define employing spline set stop nut rotation to realize the locking technology of bolt and nut without
The inertial thinking of use value, thus prevent those skilled in the art to improve employing spline set and stop nut rotation to realize
The enthusiasm of the technical scheme that bolt and nut is locking.
The fastening structure of above-mentioned prior art, is all to need spline is placed in spline hole constraint locking screw parent phase
Screw rod court is unscrewed direction rotate.Shortcoming be if spline set be contained in completely in spline hole, if the most not by spline set from
The taking-up structure taken out in spline hole, spline set is difficult to take out from spline hole；Further, processing and spline set on attached body are needed
The spline hole coordinated, or need one be nonrotatably mounted tO with attached body together with spline part, spline part is processed with only
The spline hole that pivoted housing periphery coordinates, cost is high.
Summary of the invention
For problems of the prior art, instant invention overcomes existing those skilled in the art and recognize employing spline
Set limit screw thread pair towards unscrew direction rotational release loosing Prevention Technology scheme, because of spline set be difficult to or cannot be from the first spline hole
Take out, cause the inertial thinking that has no value for use.
The technical problem to be solved in the present invention is to provide one and need not spline part, is also not required to be provided with in spline set periphery
Spline overlap outer rotation prevention portion, on attached body processing with spline set periphery cooperation spline hole retrain spline overlap rotate relative to attached body,
Simple in construction, spline are overlapped the fastening structure of easy installation and removal, are fastenedly connected assembly, crankshaft connecting rod system.
A kind of fastening structure, including being fastenedly connected assembly, parent, attached body；It is fastenedly connected assembly and includes screw rod, locking
Nut；Screw rod includes external thread part, spline blocking part, spline blocking part radially protruding external thread part；It is equipped with on parent, attached body
The through hole coordinated with the external thread part of screw rod；Screw rod is threadeded through the through hole on parent, the through hole of attached body with locking nut,
Screw rod is non-rotatably installed together with parent；It is fastenedly connected assembly and also includes spline set；The periphery of locking nut is provided with week
To evenly distributed, axial nut rotation prevention portion；Spline set is provided only with an axial spline through hole, the hole wall of spline through hole
It is provided with rotation prevention portion in the spline set coordinated with nut rotation prevention portion；An end face of spline set is axially convexly equipped with constraint spline
Overlap and unscrew, towards locking nut, the spline set spline boss that direction rotates, spline set spline boss keep out position circumferential direction,
Direction is unscrewed towards locking nut；The side deviating from parent on attached body is only provided with the attached body with spline set spline boss matched in clearance
Turn hole；Spline set is arranged on outside locking nut, and spline set spline boss inserts in attached body spline hole, and spline set is by axial limiting
Outside locking nut；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline set
Spline boss is kept out constraint spline set in the side unscrewing direction towards locking nut by attached body spline hole and is rotated relative to attached body；Spiral shell
Bar, locking nut are non-rotatably installed together with parent, attached body.
A kind of fastening structure, including being fastenedly connected assembly, parent, attached body；It is fastenedly connected assembly and includes screw rod, locking
Nut；Screw rod includes external thread part, spline blocking part, spline blocking part radially protruding external thread part；It is equipped with on parent, attached body
The through hole coordinated with the external thread part of screw rod；It is fastenedly connected assembly and also includes spline set, spline pad；The periphery of locking nut is provided with
The nut rotation prevention portion that circumference is evenly distributed, axial；Spline set is provided only with an axial spline through hole, the hole of spline through hole
Wall is provided with rotation prevention portion in the spline set coordinated with nut rotation prevention portion；An end face of spline set is axially convexly equipped with constraint only
Pivoted housing unscrews, towards locking nut, the spline set spline boss that direction rotates, spline set spline boss keep out position in circumference side
To, unscrew direction towards locking nut；Spline pad is provided with through hole and spline set spline that the external thread part with screw rod coordinates
The spline pad spline hole of boss matched in clearance；On the end face of attached body, it is convexly equipped with spline pad spline boss at spline pad；Spline
The height of set spline boss, less than or equal to the thickness of spline pad, is provided with the attached body coordinated with spline pad spline boss on attached body
Spline hole；Screw rod is threadeded through the through hole on parent, the through hole on attached body, the through hole of spline pad with locking nut, screw rod
Non-rotatably it is installed together with parent；Spline pad spline boss retrains the rotation of spline pad the most attached body in inserting attached body spline hole
Turn；Spline set is arranged on outside locking nut, and spline set spline boss inserts in spline pad spline hole, and spline set is by axial limiting
Outside locking nut；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline set
Spline boss is kept out the constraint spline relative spline pad of set in the side unscrewing direction towards locking nut by spline pad spline hole and is revolved
Turn；Screw rod, locking nut are non-rotatably installed together with parent, attached body, spline pad.
One is fastenedly connected assembly, also include screw rod, locking nut,；Screw rod includes external thread part, spline blocking part, only
Turn blocking part radially protruding external thread part；Also include spline set；The periphery of locking nut is provided with the spiral shell that circumference is evenly distributed, axial
Female rotation prevention portion；Spline set, for ring-type, be provided only with an axial spline through hole on spline set, set on the hole wall of spline through hole
There is the interior rotation prevention portion of spline set that circumference is evenly distributed, axial；An end face of spline set is axially convexly equipped with and attached body spline
Hole and/or spline pad spline hole coordinate, constraint spline set unscrews the spline set spline boss that direction rotates, spline towards locking nut
Set spline boss keep out position in circumferential direction, unscrew direction towards locking nut；Screw rod and locking nut are threaded, only
Pivoted housing is arranged on outside locking nut；Nut rotation prevention portion revolves relative to spline set with rotation prevention portion fiting constraint locking nut in spline set
Turn.
As improvement, the height of spline set spline boss is more than the axial length of rotation prevention portion in spline set.
As improvement, also include spline pad；Spline pad is provided with through hole and spline that the external thread part with screw rod coordinates
The spline pad spline hole of set spline boss matched in clearance；At spline pad towards on the end face of attached body, axially with attached body be only convexly equipped with
Turn the spline pad spline boss that hole coordinates；The height of spline set spline boss is less than or equal to the thickness of spline pad.
As improvement, also include spline pad；Spline pad is provided with through hole and spline that the external thread part with screw rod coordinates
The spline pad spline hole of set spline boss matched in clearance；It is provided with Embedded Division or be coated with in spline acting as a cushion from the side of spline set to rub
Wipe granule；Embedded Division is that embedding of being arranged on the end face of spline pad is protruding or for be arranged on the built-in edges outside spline pad；Only
The height of pivoted housing spline boss is less than or equal to the thickness of spline pad.
As improvement, spline set includes ring-type spline set body, and the shaft core position at spline set body is provided with center and leads to
Hole, from spline set, body homonymy is axially convexly equipped with plural elastic arm, the end of elastic arm is formed radially inward limiting section,
Being provided with rotation prevention portion in spline set on the medial surface of limiting section, limiting section is provided with the medial surface of the interior rotation prevention portion of spline set and forms non-closing
The spline through hole closed；Spline set spline boss and limiting section homonymy.
As improvement, spline set also includes elastic arm；Spline set is provided with to connect with spline through hole and joins with elastic arm
Closing, be used for housing elastic arm and providing the avoiding hollow groove of deformation space for elastic arm deformation, spline through hole is the hole of non-closed；Elastic
One end of arm deviates from the side of spline set spline boss and is connected with spline set, and it is convex that the other end is arranged with spline set spline towards spline
The side of platform is also radially provided with limiting section in the end of this end to the axle center of spline through hole, the axis of limiting section and spline through hole
Vertically, limiting section radially protruding spline through hole；Elastic arm is the most right with avoiding hollow groove.
This structure spline set, puts owing to the interior rotation prevention portion of spline set is arranged on spline rather than is arranged on elastic arm
On limiting section, spline through hole will not be deformed because of external force, and spline is effective.
As improvement, also include locating part, a corresponding locating part of spline set；
Locating part includes ring-type locating part body, is provided only with a central through hole in the center of locating part body,
The minimum-value aperture of central through hole is more than the maximum diameter of hole of spline through hole；Also include the plural bullet being connected with locating part body
Property arm, is provided with the limiting section parallel with locating part body, limiting section radial convex in elastic arm end to central through hole axis direction
Go out central through hole；The minimum diameter of plural limiting section is less than the minimum diameter of spline through hole；
Spline set is provided with and coordinates with elastic arm, for housing elastic arm and providing deformation space for elastic arm deformation
Empty avoiding space；Locating part is installed together with spline set, the empty avoiding interference fit that elastic arm overlaps with spline；Locating part spacing
The spline through hole of portion's radially protruding spline set；In the direction parallel with locating part body, the maximum deflection of elastic arm is more than limit
The limiting section of position part protrudes the length of the hole wall of the spline through hole of spline set.
As improvement, the limiting section of locating part all protrudes locating part body, and locating part body is arranged on of spline set
On end face, elastic arm axially stretches in empty avoiding space, and limiting section is radially in spline through hole.
The spline limit assembly of this structure, locating part can be plastic parts, and by spline is mounted on forming plastic cement
In the mould of part, when molding locating part, locating part is fixed together with spline set.
As improvement, the hole wall of the central through hole of locating part is provided with plural groove；Elastic arm includes and limit
The first elastic arm that position part body is connected, the curved spring arm bent to the axle center of central through hole along the first elastic arm end, edge
The second elastic arm that the end of curved spring arm is formed the most vertically downward, limiting section is arranged on the end of the second elastic arm；First
Elastic arm, curved spring arm, the second elastic arm form U-shaped elastic arm, and U-shaped elastic arm is just to groove.
The spline limit assembly of this structure, locating part can be metallic stamping pieces, and and stopped locating part by spot welding
Pivoted housing is fixed together, and cost is relatively low.
As improvement, also include locating part；Locating part includes plural elastic spacing one；Elastic spacing one includes water
Flat limiting section, the first elastic arm of vertical limiting section bending, along the first elastic arm end to limiting section direction and parallel
Limiting section bending, again deviate from limiting section direction bend the most obliquely, reversely bend obliquely again, be re-directed towards limiting section direction and
The buckle of parallel limiting section bending, then the second elastic arm bent downwards along buckle end, then along the second elastic arm
End deviate from the blocking part of limiting section direction parallel limiting section bending；
Spline set is provided with and coordinates with elastic arm, for housing elastic arm and providing deformation space for elastic arm deformation
Emptiness avoiding hole；
The empty avoiding that Elastic buckle puts through spline is also led to by the axle center overlapped towards spline by the limiting section of elastic spacing one
Hole, be snapped by elastic spacing one side keep out, side is kept out by blocking part and elastic spacing one and locating part is arranged on one
Rising, the hole wall of the spline through hole of the limiting section radially protruding spline set of elastic spacing one, between two elastic arms of elastic spacing one
Distance protrude the length of hole wall of spline through hole of spline set more than the limiting section of elastic spacing one.
The spline limit assembly of this structure, elastic spacing one can be metallic stamping pieces, and elastic spacing one is directly buckled in
Spline puts and is installed together with spline set by elastic spacing one, low cost, and elastic spacing one is the most detachable relative to spline set, and
And also greatly reduce the material cost of locating part.
As the improvement of scheme three to six, it is fastenedly connected assembly and also includes locating part；Locking nut is provided with draw-in groove；Limit
Position part is snap ring, and snap ring includes the ring-type snap ring body of non-closed, is provided with more than three radial convexes in the periphery of snap ring body
Go out the spacing raised line of snap ring body；The inner circumferential of snap ring body coordinates with the periphery of the card trench bottom of locking nut；Spacing raised line
External diameter is more than the maximum diameter of hole of the spline through hole of spline set；Snap ring is arranged in draw-in groove and spline set deviates from nut spline protuberance
Side axial limiting.
The snap ring of this structure, snap ring body need not especially greatly can be spacing to spline set, good limit effect.
As the improvement of scheme seven to ten two, the periphery of locking nut sets the limiting section accommodation space coordinated with limiting section,
It is to keep out face for keep out limiting section towards the face of the spline blocking part of screw rod at limiting section accommodation space；Spline set is arranged on
Outside locking nut, elastic arm makes limiting section insertion limiting section accommodation space interior and limited portion accommodation space by elastic deformation
The face of keeping out keep out, spline set deviated from the side axial limiting of external thread part.
As the improvement of scheme three to six, axially it is convexly equipped with on the end face of external thread part in the spline blocking part of screw rod
Be used for retrain the spline boss that locking nut screw rod rotates relative to parent.
A kind of fastening structure being fastenedly connected assembly including scheme three, four, seven to ten two any one, also includes
Parent, attached body；It is equipped with, on parent, attached body, the through hole that the external thread part with screw rod coordinates；
It is fastenedly connected assembly and also includes spline pad；Spline pad is provided with through hole that the external thread part with screw rod coordinates and
The spline pad spline hole of spline set spline boss matched in clearance；The height of spline set spline boss is less than or equal to the thickness of spline pad
Degree；
Screw rod is threadeded through the through hole on parent, the through hole on attached body, the through hole of spline pad with locking nut, screw rod
Non-rotatably it is installed together with parent；Being provided with Embedded Division in spline acting as a cushion from the side of spline set, the hardness of attached body is less than
The hardness of the Embedded Division of spline pad, the Embedded Division of spline pad embeds attached internal constraint spline pad and rotates relative to attached body；Or in spline
Act as a cushion and be coated with friction particles from the side of spline set, between the friction particles of spline pad and attached body, produce sufficiently large frictional force about
Bundle spline pad rotates relative to attached body；Or spline pad is fixed on attached body constraint spline pad by fixing glue and rotates relative to attached body；Only
Pivoted housing is arranged on outside locking nut, and spline set spline boss inserts in spline pad spline hole, and spline set is being locked by axial limiting
Outside jack panel；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline set spline
Boss is kept out constraint spline set in the side unscrewing direction towards locking nut by spline pad spline hole and is rotated relative to spline pad；Spiral shell
Bar, locking nut are non-rotatably installed together with parent, attached body, spline pad.
As improvement, axially it is convexly equipped with and for retraining lock on the end face of external thread part in the spline blocking part of screw rod
The spline boss that jack panel screw rod rotates relative to parent；Spline pad also includes screw rod spline pad, the spline pad on screw rod spline pad
Spline hole coordinates with the spline boss of screw rod；Being provided with Embedded Division at screw rod spline pad towards the side of parent, the hardness of parent is little
In the hardness of the Embedded Division of screw rod spline pad, the Embedded Division of screw rod spline pad retrains screw rod spline pad relative to parent in embedding parent
Rotate；Or it is coated with friction particles, between the friction particles of screw rod spline pad and parent at screw rod spline pad towards the side of parent
Produce sufficiently large restrictions of the frictional force screw rod spline pad to rotate relative to parent；Or screw rod spline pad is fixed on parent by fixing glue
Upper constraint screw rod spline pad rotates relative to parent；Retrain in the spline pad spline hole of the spline boss insertion screw rod spline pad of screw rod
Screw rod rotates relative to screw rod spline pad；Screw rod is non-rotatably installed together with parent.
A kind of fastening structure being fastenedly connected assembly including scheme three, four, seven to ten two any one, also includes
Parent, attached body；Parent and attached body are integral type structure, form the annular solid of band fracture；Two ends difference at the fracture of annular solid
It is provided with the first relative installation portion and the second installation portion in the same direction；First installation portion, the second installation portion are equipped with and screw rod
The through hole that external thread part coordinates；The external thread part of screw rod through the through hole on the first installation portion, through hole on the second installation portion with
Locking nut is threaded, and the first installation portion and the second installation portion are installed together by screw rod, locking nut, and screw rod is non-rotatable
Ground is installed together with the first installation portion；The side deviating from the second installation portion on first installation portion is provided with and spline set spline boss
First installation portion spline hole of matched in clearance；Spline set is arranged on outside locking nut, and spline set spline boss inserts the first installation
In spline hole, portion, and spline set by axial limiting outside locking nut；Nut rotation prevention portion and rotation prevention portion fiting constraint in spline set
Locking nut rotates relative to spline set, and spline set spline boss is unscrewing the side in direction by the first installation portion towards locking nut
Spline hole is kept out constraint spline set and is rotated relative to the first installation portion；Screw rod, locking nut non-rotatably with the second installation portion,
One installation portion is installed together.
A kind of crankshaft connecting rod system, including bent axle, connection rod set, is fastenedly connected assembly；Connection rod set includes that gonnecting rod body, connecting rod are big
Skull, big end bearing shell；It is fastenedly connected assembly and includes screw rod, locking nut；Screw rod includes external thread part, spline blocking part,
Spline blocking part radially protruding external thread part；Gonnecting rod body includes big end and small end of connecting rod, on big end, big end lid
It is equipped with the through hole that the external thread part with screw rod coordinates；It is fastenedly connected assembly and also includes spline set, locating part；Outside locking nut
It is provided with the nut rotation prevention portion that circumference is evenly distributed, axial week；Being provided only with an axial spline through hole on spline set, spline is led to
The hole wall in hole is provided with rotation prevention portion in the spline set coordinated with nut rotation prevention portion；An end face of spline set is axially convexly equipped with
Constraint spline set unscrews, towards locking nut, the spline set spline boss that direction rotates, spline set spline boss keep out position in week
To direction, unscrew direction towards locking nut；The side deviating from connecting rod cap at big end is provided with the most convex with what spline was overlapped
The major part spline hole that portion coordinates；Big end bearing shell is filled the span of a man's arms outside bent axle, and big end and connecting rod cap are filled the span of a man's arms big at connecting rod
Outside head bearing shell；The external thread part of screw rod sequentially passes through the through hole on the through hole of big end, big end lid and locking nut spiral shell
Stricture of vagina connects, and screw rod is non-rotatably installed together with big end, and screw rod, locking nut are by big end and connecting rod cap
It is installed together；Spline set is arranged on outside locking nut, and spline set spline boss inserts in major part spline hole, and locating part is arranged on
The side axial limiting of spline set spline protuberance is deviated from screw rod or on locking nut to spline set；Nut rotation prevention portion and spline set
Interior rotation prevention portion fiting constraint spline set rotates relative to locking screw parent phase, and spline is overlapped spline boss and unscrewed direction quilt at locking nut
Major part spline hole keep out constraint spline set rotate relative to big end, connecting rod cap and big end without rotating against, screw rod,
Locking nut is non-rotatably installed together with connecting rod cap and big end.
One is fastenedly connected assembly, including locking nut；Also include the threaded connector of U-shaped, spline set；
Threaded connector includes the threaded connector body of U-shaped, is equipped with external screw thread at the two ends of threaded connector body
Portion, the outer warp of external thread part is less than the outer warp of threaded connector body；The all corresponding locking nut of the external thread part often held and
Spline set；
The periphery of locking nut is provided with the nut rotation prevention portion that circumference is evenly distributed, and shaft core position is provided with and coordinates with external thread part
Screwed hole；Being provided only with an axial spline through hole on spline set, the hole wall of spline through hole is provided with and nut rotation prevention portion
Rotation prevention portion in the spline set coordinated；An end face of spline set is axially convexly equipped with constraint spline set towards the locking nut side of unscrewing
To rotate spline set spline boss, spline set spline boss keep out position in circumferential direction, towards the locking nut side of unscrewing
To；
The external thread part at threaded connector two ends is threaded with corresponding locking nut respectively, in the spline set of spline set
Rotation prevention portion is arranged on outside the nut rotation prevention portion of locking nut, spline set by axial limiting outside the nut rotation prevention portion of locking nut；
Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set.
A kind of fastening structure being fastenedly connected assembly comprising scheme 20, fastening structure also includes being connected
Part；Connected piece is provided with two through holes coordinated with threaded connector, is provided with on connected piece on the face of spline set
The spline hole coordinated with spline set spline boss；The external thread part at threaded connector two ends is respectively through corresponding on connected piece
Through hole is threadeded with locking nut, and two through hole constraint threaded connectors on connected piece rotate relative to connected piece, spiral shell
Stricture of vagina connector body axially keeps out connected piece side, and locking nut axially keeps out connected piece opposite side, threaded connector, lock
Jack panel is installed together with connected piece；In the spline set of spline set, rotation prevention portion is arranged on outside the nut rotation prevention portion of locking nut
And by axial limiting, spline set spline boss inserts in connected piece spline hole；Nut rotation prevention portion is joined with rotation prevention portion in spline set
Contract bundle locking nut rotates relative to spline set, and spline set spline boss is connected in the side unscrewing direction towards locking nut
Fitting spline hole is kept out constraint spline set and is rotated relative to connected piece；Threaded connector can not revolve with locking nut, connected piece
It is installed together with turning.
The invention has the beneficial effects as follows:
Screw thread pair should be stoped to rotate locking towards unscrewing direction, keep that mechanical whorl connects again easily and fast, reliably
Ground detachability, is that people endeavour to solve the most not thorough technical barrier solved the most for a long time.
The present invention is arranged on outside locking nut by spline set, spline set spline boss inserts attached body spline hole or pad stops
Turning in hole, spline set spline boss is kept out by attached body spline hole or pad spline hole in the side unscrewing direction towards locking nut
Constraint spline set rotates relative to attached body；Nut rotation prevention portion revolves relative to spline set with rotation prevention portion fiting constraint locking nut in spline set
Turn；So screw rod, locking nut is non-rotatably installed together with parent, attached body.Screw rod, locking nut cannot rotate, spiral shell
The threaded of bar and locking nut would not rotate because of locking nut and get loose towards unscrewing direction, makes screw rod and locking nut protect
Hold the locked position being initially required, screw rod and locking nut threaded coupling mechanism force the most substantially without become
Change；Even if using common screw rod and locking nut to be fastenedly connected parent and attached body, in the adverse circumstances such as strenuous vibration, high temperature
Under, the threaded coupling mechanism force of screw rod and locking nut is the most unchanged；Therefore best locking is reached
Effect, can be prevented effectively from threaded inefficacy.
The height of spline set spline boss is more than the axial length of rotation prevention portion in spline set, when the spline of fastening structure
When set is arranged on outside locking nut, before in the spline set of spline set, rotation prevention portion does not contacts with the nut rotation prevention portion of locking nut,
The keeping out position and can contact with attached body spline hole or pad spline hole unscrewing direction towards locking nut of spline set spline boss,
So that spline the keeping out of spline boss of set inserting attached body spline hole or pad spline hole is located proximate to attached body spline hole or pad
Sheet spline hole, or contact with attached body spline hole or pad spline hole.
Locking nut to get loose, it is necessary to rotates towards unscrewing direction, due to spline set spline boss keep out be located proximate to attached
Body spline hole or pad spline hole, or contact with attached body spline hole, locking nut one rotates towards unscrewing direction, and spline set spline is convex
Platform is i.e. kept out by attached body spline hole in the side unscrewing direction towards locking nut, though therefore spline set spline boss and attached body
The cooperation of spline interporal lacuna, spline set also cannot rotate towards unscrewing direction or direction is only capable of rotating little by little, spline is only overlapped towards unscrewing
Turning boss i.e. to be kept out by attached body spline hole, spline set cannot cannot invert by rotation condition locking nut, can be prevented effectively from locking
Nut is towards unscrewing direction rotational release, and spline is effective.
Nut rotation prevention portion circumference is evenly arranged in outside locking nut, such nut rotation prevention portion and matched spline set
Interior rotation prevention portion just can be at least more than 6, the integral multiple that number is nut rotation prevention portion of rotation prevention portion in spline set, spline set with
The structure that locking nut coordinates can be gear shape, spline shape or regular polygon etc., thus ensure that threaded pretightning force is full
Foot uses requirement, and locking effect is good.If spline keeping out of spline boss of set is located proximate to attached body spline hole or pad spline hole,
Then spline effect is the best.
Spline set is provided only with a spline through hole, is fastenedly connected the applied widely of assembly, not by parent and attached body
The upper pitch-row being used for installing the hole of screw rod limits.This fastening structure, more compact structure, more meet general standard component tight
The installation of firmware and use habit, can be designed to standard component.
Spline set is provided with spline set spline boss, attached body is provided with attached body spline through hole, overlaps spline by spline
Boss retrains spline with the cooperation of attached body spline hole and overlaps relative attached body, only need to process on attached body or molding is convex with spline set spline
The attached body spline hole that platform coordinates, attached body spline hole is generally circular hole, and processing cost is low.
By spline pad spline, the side deviating from spline set at spline pad is provided with Embedded Division, the Embedded Division of spline pad
Embed attached internal constraint spline pad to rotate relative to attached body, it is not necessary on attached body, processing coordinates with spline set spline boss
Hole, attached body need not the spline structure that any constraint spline set rotates, and spline pad can make standard component, thus is substantially reduced
Cost.When dismounting is fastenedly connected assembly, spline pad is not required to separate with attached body, it can thus be ensured that the Embedded Division of spline pad embeds
Attached internal constraint spline pad rotates relative to attached body.
By spline pad spline, the side deviating from spline set at spline pad is provided with pad spline boss, and pad spline is convex
Platform retrains spline pad in inserting attached body spline hole and rotates relative to attached body, and spline set spline boss coordinates to come about with pad spline hole
Bundle spline set rotates relative to attached body, need to process on attached body or attached body spline hole that molding coordinates with pad spline boss, attached
Body spline hole is generally circular hole, and processing cost is low.
By spline pad spline, spline pad is bonded on attached body constraint spline pad by fixing glue and rotates relative to attached body,
Need not the hole that processing coordinates with spline set spline boss on attached body, attached body need not stopping of any constraint spline set rotation
Rotation structure, spline pad can make standard component, thus is substantially reduced cost, also unrestricted to the material of attached body, only needs attached body surface
Face is smooth, and cost is the lowest, also will not destroy attached surface.When dismounting is fastenedly connected assembly, spline pad is not required to attached
Body separates.
Spline set spline boss rotates relative to attached body with attached body spline hole or pad spline hole fiting constraint spline pad, is not required to
To be provided with spline in spline set periphery and to overlap outer rotation prevention portion, it is not necessary to overlap, with the spline of spline set periphery, the spline that outer rotation prevention portion coordinates
Hole retrains spline set and rotates relative to attached body；Because overlapping, with spline, the spline hole coordinated without processing on attached body, also it is not required to
Want one be non-rotatably mounted at attached body together with, be provided with and overlap, with spline, the spline part in spline hole that outer rotation prevention portion coordinates, also
Need not on spline set, design plural spline through hole rotate to retrain spline set.Relatively on attached body processing be provided with
Spline overlaps the spline hole that outer rotation prevention portion coordinates, and processing cost is substantially reduced.Relatively come about with attached body non-rotatably spline part
Bundle spline set rotates relative to attached body, saves spline part, eliminates and installs spline part in erecting bed, saves set-up time one-tenth
This, greatly reduce cost.
It is generally matched in clearance, it is simple to the installation of spline set and taking-up between spline set and locking nut.Due to spline set
Being not installed in spline hole, expose completely, it is easy for installation, quick that spline is overlapped；Even if the dismounting of spline set is not by dismounting
Instrument also can be dismantled easily, convenient disassembly, quickly, reliable.
Spline puts and is provided with elastic arm, is provided with limiting section in the end of elastic arm, it is no longer necessary to locating part is to spline set limit
Position.Locating part is provided with elastic arm, is provided with limiting section in the end of elastic arm；Just locating part and spline are overlapped in factory and install
Together, and can make standard component, in factory, owing to can realize automated job, therefore installation effectiveness is high.Employing is provided with elasticity
The spline set of arm and include being provided with elastic arm locating part be fastenedly connected assembly, in screw rod and the erecting bed of locking nut,
Being no longer necessary to install locating part, the most quick for installation, efficiency is high.
Parent and attached body are integral type structure, form the annular solid of band fracture, the fastening structure of this mechanism, are used for
When connecting other part, owing to screw rod will not rotate relative to the first installation portion and the second installation portion with locking nut, even if tightly
It is solidly connected structure to bear power or fastening structure greatly and be in the environment etc. of strenuous vibration, also will not be because of locking nut
Rotate cause threaded inefficacy towards unscrewing direction, it is ensured that screw rod and locking nut reliably by the second installation portion, first install
Portion is installed together.
Use the crankshaft connecting rod system being fastenedly connected assembly of the present invention, by being fastenedly connected the company that assembly is fixed together
The body of rod and connecting rod cap, owing to locking nut will not rotate, even if therefore gonnecting rod body bears relative to gonnecting rod body, the big skull of screw rod
Power or crankshaft connecting rod system are in the environment etc. of strenuous vibration greatly, also will not unscrew direction because of locking nut court and rotate
Cause threaded inefficacy, so guarantee that gonnecting rod body is reliably mounted on connecting rod cap together with, Accident prevention occurs.
Spline set is provided with spline hole, attached body is provided with the spline boss that the spline hole with spline set coordinates, is this
One simple substitute equivalents of invention, falls within protection scope of the present invention certainly.Spline boss is arranged on attached body, removes
Non-is moulding, cast member etc., the boss of molding spline the most together when the attached body of molding, if processing spline boss, cost is the highest,
Therefore the most no longer describe.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the fastening structure of embodiment 1.
Fig. 2 is the cross-sectional schematic that the fastening structure of embodiment 2 crosses the shaft core position cutting of screw rod.
Fig. 3 is the cross-sectional schematic that the fastening structure of embodiment 2 crosses the shaft core position cutting of screw rod.
Fig. 4 is the perspective exploded view of the fastening structure of embodiment 2.
Fig. 5 is the perspective exploded view of the fastening structure of embodiment 3.
Fig. 6 is the schematic perspective view of the fastening structure of embodiment 3.
Fig. 7 is the cross-sectional schematic that the fastening structure of embodiment 3 crosses the shaft core position cutting of screw rod.
Fig. 8 is the cross-sectional schematic that the fastening structure of embodiment 4 crosses the shaft core position cutting of screw rod.
Fig. 9 is the perspective exploded view being fastenedly connected assembly of embodiment 4.
Figure 10 is the perspective exploded view being fastenedly connected assembly of embodiment 5.
Figure 11 is the locating part perspective exploded view with spline set of embodiment 5.
Figure 12 is the cross-sectional schematic that the fastening structure of embodiment 5 crosses the shaft core position cutting of screw rod.
Figure 13 is the perspective exploded view of the fastening structure of embodiment 6.
Figure 14 is the locking nut perspective exploded view with spline set of embodiment 6.
Figure 15 is the cross-sectional schematic that the fastening structure of embodiment 6 crosses the shaft core position cutting of screw rod.
Figure 16 is the locking nut perspective exploded view with spline set of embodiment 7.
Figure 17 is the perspective exploded view of the fastening structure of embodiment 8.
Figure 18 is the cross-sectional schematic that the fastening structure of embodiment 8 crosses the shaft core position cutting of screw rod.
Figure 19 is the perspective exploded view of the fastening structure of embodiment 9.
Figure 20 is the cross-sectional schematic that the fastening structure of embodiment 9 crosses the shaft core position cutting of screw rod.
Figure 21 is the schematic perspective view of the fastening structure of embodiment 10.
Figure 22 is the perspective exploded view of the fastening structure of embodiment 10.
Figure 23 is the cross-sectional schematic that the fastening structure of embodiment 10 crosses screw rod shaft core position cutting.
Figure 24 is the schematic perspective view of the fastening structure of embodiment 11.
Figure 25 is the perspective exploded view being fastenedly connected assembly of embodiment 11.
Figure 26 is the cross-sectional schematic that the fastening structure of embodiment 12 crosses screw rod shaft core position cutting.
Figure 27 is the perspective exploded view of the fastening structure of embodiment 12.
Figure 28 is the cross-sectional schematic that the fastening structure of embodiment 13 crosses screw rod shaft core position cutting.
Figure 29 is the perspective exploded view of the fastening structure of embodiment 13.
Figure 30 is the perspective exploded view of the fastening structure of embodiment 14.
Figure 31 is the cross-sectional schematic that the fastening structure of embodiment 14 crosses the shaft core position cutting of screw rod.
Figure 32 is the perspective exploded view of the fastening structure of embodiment 15.
Figure 33 is the cross-sectional schematic that the fastening structure of embodiment 15 crosses the shaft core position cutting of screw rod.
Figure 34 is the cross-sectional schematic that the fastening structure of embodiment 16 crosses the shaft core position cutting of screw rod.
Figure 35 is locking nut and the perspective exploded view of spline set of embodiment 16.
Figure 36 is the perspective exploded view of the fastening structure of embodiment 16.
Figure 37 is the cross-sectional schematic that the fastening structure of embodiment 17 crosses the shaft core position cutting of screw rod.
Figure 38 is the screw rod perspective exploded view with screw rod spline pad of embodiment 17.
Figure 39 is the perspective exploded view being fastenedly connected assembly of embodiment 18.
Figure 40 is the cross-sectional schematic that the fastening structure of embodiment 18 crosses the shaft core position cutting of screw rod.
Figure 41 is the perspective exploded view being fastenedly connected assembly of embodiment 19.
Figure 42 is the cross-sectional schematic that the fastening structure of embodiment 19 crosses the shaft core position cutting of screw rod.
Figure 43 is the perspective exploded view that the locking nut of embodiment 20, spline fit keep out nut.
Figure 44 is the section view signal that the fastening structure of embodiment 20 crosses the shaft core position cutting of the threaded connector of U-shaped
Figure.
Figure 45 is the perspective exploded view being fastenedly connected assembly of embodiment 21.
Figure 46 is the cross-sectional schematic that the fastening structure of embodiment 21 crosses the shaft core position cutting of screw rod.
Figure 47 is the close-up schematic view of the a-quadrant of Figure 46.
Figure 48 is the spline set schematic perspective view with elastic spacing one of embodiment 22.
Figure 49 is the cross-sectional schematic that the fastening structure of embodiment 22 crosses the shaft core position cutting of screw rod.
Figure 50 is the close-up schematic view of the a-quadrant of Figure 49.
Figure 51 is the schematic perspective view of the locating part of embodiment 23.
Figure 52 is the schematic perspective view of the locating part of embodiment 24.
Figure 53 is the stereo decomposing signal of the crankshaft connecting rod system of embodiment 25.
Figure 54 is the cut-away illustration that the axis cutting of two screw rods crossed by the crankshaft connecting rod system of embodiment 25.
Detailed description of the invention
Embodiment 1
As shown in Figure 1 and Figure 2, one is fastenedly connected assembly, including screw rod 1, locking nut 2, spline set 3, locating part, limit
Position part is for keeping out nut 4.
Locking nut 2 is stairstepping, including clamping part 5 and the rotation prevention portion 6 of external tooth wheel shape of regular hexagon, rotation prevention portion 6 footpath
To protruding clamping part 5.It is provided with clamping part 5, when mounting and dismounting locking nut 2, it is simple to spanner clamping locking nut 2.Only
The periphery of transfer part 6 is provided with multiple lance tooth uniformly circumferentially arranged, and a lance tooth forms a nut rotation prevention portion 7, axle
Heart position is provided with tapped through hole 8.
Screw rod 1 includes the external thread part 9 that the tapped through hole 8 with locking nut 2 coordinates, cylindrical polished rod portion 10 and positive six
The head 11 of dihedral, head 11 protrudes a spline boss 12 towards the end face axial in polished rod portion 10.
Spline set 3 is circular, and the shaft core position of spline set 3 is provided with rotation prevention portion 6 matched in clearance with external gear shape
The spline through hole 13 of axial internal gear shape, the hole wall of spline through hole 13 is provided with multiple triangle being uniformly circumferentially distributed
Groove, the single vee gutter on the hole wall of spline through hole 13 forms rotation prevention portion in a spline set coordinated with nut rotation prevention portion 7
23.The spline boss 14 of an axially projecting column on an end face of spline set 3, spline boss 14 keep out position in week
To direction, unscrew direction towards screw rod.
Keeping out nut 4 is stairstepping, and the shaft core position keeping out nut 4 is provided with the screw thread that the external thread part 9 with screw rod 1 coordinates
Through hole 21, connects with tapped through hole 21, for the emptiness avoiding hole 15 of clamping part 5 of empty avoiding locking nut 2.
Fastening structure includes being fastenedly connected assembly, parent 16, attached body 17.
Attached body 17 is provided with the through hole 18 that the external thread part 9 with screw rod 1 coordinates, and the side deviating from parent 16 at attached body 17 sets
There is the spline circular hole 22 of spline boss 14 matched in clearance with locking nut 2.
Parent 16 is provided with the through hole 19 that the polished rod portion 10 with screw rod 1 coordinates, and the side deviating from attached body 17 at parent 16 sets
There is the round spline hole 20 of spline boss 12 matched in clearance with screw rod 1.
The external thread part 9 of screw rod 1 sequentially passes through stopping of the through hole 20 on parent 16, the through hole 18 on attached body 17 and screw rod 1
Turning in the round spline hole 20 that boss 12 inserts parent 16, screw rod 1 is threadeded with locking nut 2, and the head 11 of screw rod 1 axially supports
Gear parent 16, locking nut 2 is axially kept out attached body 17, screw rod 1 and locking nut 2 and is fastenedly connected parent 16 and attached body 17 one
Rise.The spline boss 12 of screw rod 1 inserts and retrains screw rod 1 in the round spline hole 20 of parent 16 and rotate relative to parent 16.
Spline set 3 is arranged on outside the rotation prevention portion 6 of locking nut 2, and keeping out of spline boss 14 is located proximate to stopping of attached body 17
Turning circular hole 22 or contact with spline circular hole 22, the nut rotation prevention portion 7 of lance tooth inserts in the spline set of corresponding vee gutter
In rotation prevention portion 23, and the spline boss 14 of spline set 3 inserts in the spline circular hole 22 of attached body 17, keeps out nut 4 and is arranged on screw rod 1
External thread part 9 on, the clamping part 5 of screw rod 1 is placed in the emptiness avoiding hole 15 keeping out nut 4, keeps out nut 4 and 3 deviates from spline set
The side axial limiting of attached body 17.Spline boss 14 is unscrewing the side spline circle by attached body 17 in direction towards locking nut 2
Hole 22 is kept out, spline set 3 is arranged on the outer common constraint spline set 3 of locking nut 2 and rotates relative to attached body 17, nut rotation prevention portion 7 with
In spline set, rotation prevention portion 23 fiting constraint spline set 3 rotates relative to locking nut 2, parent 16 and attached body 17 without rotating against, because of
This screw rod 1, locking nut 2 are non-rotatably installed together with parent 16 and attached body 17.
Embodiment 2
As shown in Figure 3, Figure 4, as different from Example 1, locating part is snap ring 31.
Snap ring includes the snap ring body of ring-type non-closed, and the medial surface at snap ring body is radially-inwardly convexly equipped with three and supports
Gear protuberance, three medial surface distributions keeping out protuberance are on the same periphery that snap ring body is coaxial.
Screw rod 32 includes the head 33 being arranged in order, cylindrical polished rod portion 34, external thread part 35, cylindrical installation portion
36, installation portion 36 is provided with the draw-in groove 37 of circumference.
The clamping part 39 radially protruding rotation prevention portion 40 of locking nut 38.
Spline set 41 is additionally provided with coaxial with spline through hole 42 and connects, for the clamping part 39 of empty avoiding locking nut 38
Emptiness avoiding hole 43, the aperture of emptiness avoiding hole 43 is more than the aperture of spline through hole 42.
As different from Example 1, the protuberance of keeping out of snap ring 31 is stuck in screw rod 32 by elastic deformation to fastening structure
Spline set 41 deviates from the draw-in groove 37 of installation portion 36 the side axial limiting of attached body 44, and the clamping part 39 of locking nut 38 is placed in
In the emptiness avoiding hole 43 of spline set 41.
Embodiment 3
As shown in Figures 5 to 7, as different from Example 1, locating part is snap ring 51.
Locking nut 52 is outer-hexagonal nut, six spiral shells that six planar shaped of the periphery of locking nut 52 arrange circumferentially
Female rotation prevention portion 53, shaft core position is provided with tapped through hole 54, and the periphery of locking nut 52 is provided with the draw-in groove that circumference coordinates with snap ring 51
55。
The shaft core position of spline set 56 is provided with the axial spline through hole 57 coordinated with locking nut 52, at spline set 56
An axially projecting spline boss 58 on one end face.The hole wall of spline through hole 57 is the regular hexagon hole rotation that two structures are identical
Turning the intersection of 30 °, form 12 pointed shape grooves on the hole wall of spline through hole 57, each pointed shape groove is by positive six
The two of dihedral hole intersect planar shaped, and the two of pointed shape groove are intersected planar shaped and become the nut rotation prevention portion 53 with locking nut 52 to join
Rotation prevention portion 59 in the spline set closed.
Snap ring 51 includes circular snap ring 51 body of non-closed, and the periphery of snap ring body 63 is uniformly distributed six radial directions
The spacing raised line 61 protruded, is equipped with dismounting through hole 60 in the end at draw-in groove 55 body two ends.Spacing raised line 61 radially protruding
The periphery of the draw-in groove 55 on locking nut 52, the maximum outside diameter of spacing raised line 61 is more than the maximum diameter of hole of spline through hole 57；Snap ring
The inner circumferential of body 63 coordinates with the periphery bottom the draw-in groove 55 of locking nut 52.
Spline set 56 is arranged on outside locking nut 52, and snap ring body 63 is arranged in the draw-in groove 55 of locking nut 52, snap ring
The spacing raised line 61 of 51 is kept out the end face of the side that spline set 56 deviates from attached body 62 and spline is overlapped 56 side shafts deviating from attached body 62
To spacing.
During dismounting locking nut 52, it extend in two dismounting through holes 60 with special clamp type tool, then be flared out
Snap ring 51, snap ring 51 just can take off from the draw-in groove 55 of locking nut 52.
Embodiment 4
As shown in Figure 8, Figure 9, as different from Example 1, one is fastenedly connected assembly, including screw rod 71, locking nut
72, spline set 73, is not required to locating part.
The clamping part 74 radially protruding rotation prevention portion 75 of locking nut 72.Spline set 73 includes ring-type spline set body 86,
Shaft core position at spline set body 86 is provided with central through hole 76, is uniformly distributed three elastic arms on the hole wall of central through hole 76
77.Horizontal projections 78 that each elastic arm 77 includes being formed radially inward from the hole wall of central through hole 76, more radially
The U-shaped elastic arm 79 that inwardly axle is formed down again；Limiting section 80 it is formed radially inward, at three in the end of U-shaped elastic arm 79
The medial surface of limiting section 80 is provided with the internal gear shape that rotation prevention portion 75 part with locking nut 72 external gear shape coordinates
Multiple vee gutters uniformly circumferentially arranged, the single vee gutter on the medial surface of limiting section 80 becomes one and nut rotation prevention portion
Rotation prevention portion 82 in the spline set that 81 coordinate, the cell wall of the vee gutter on the medial surface of three limiting sections 80 encloses formation non-closed
Spline through hole 83.Spline set 73 deviates from an axially projecting spline boss 84 on the end face of U-shaped elastic arm 79.Rotation prevention portion 75
Periphery and clamping part 74 form the limiting section accommodation space of accommodating limiting section 80 towards the end face towards rotation prevention portion 75.
As different from Example 1, the rotation prevention portion 75 of locking nut 72 is towards attached body 85 for fastening structure.Spline set 73
U-shaped elastic arm 79 outer and spline set 73 the spline boss 84 of rotation prevention portion 75 that is placed in locking nut 72 by elastic deformation insert
In the spline circular hole of attached body 85, the limiting section 80 of spline set 73 is locked the clamping part 74 of nut 72 towards the end face of rotation prevention portion 75
Keep out the side axial limiting that spline set 73 is deviated from attached body 85.
Embodiment 5
As Figure 10 is to shown in 12, and as different from Example 4, locking nut 101 includes clamping part 102, rotation prevention portion successively
103, cylindrical blocking part 104, the blocking part 104 of rotation prevention portion 103 radially protruding clamping part 102 and empty avoiding.
Locating part is plastic parts, including circular locating part body 105, locating part body 105 peripheral shape and spline
Overlap 106 peripheral shape to coordinate and similar, outside in locating part body 105, circular diameter is slightly larger than the rotation prevention portion 103 of locking nut 101
Footpath.The central through hole 113 of locating part body 105 is provided with three with groove 114, along each groove 114 bottom surface radially to
Axis direction more axially homonymy protrude locating part body and form three elastic arms 107, along each elastic arm 107 end radially to
Axis direction forms the limiting section 108 parallel with locating part body 105, the hole of limiting section 108 radially protruding central through hole 113
Wall.Same end face at locating part body 105 protrudes above six roots of sensation limited post 109, is provided with in the end of limited post 109 and keeps out ring
110.Limited post 109 and limiting section 108 are placed in the same side of locating part body 105.The periphery of blocking part 104 and rotation prevention portion 103
The limiting section accommodation space of accommodating limiting section 108 is formed towards the end face of blocking part 104.
Spline set 106 is metalwork, circumferential uniform three the empty avoiding locating parts of hole wall at the spline through hole of spline set 106
The avoiding hollow groove 111 of elastic arm 107, is provided with six circumferentially distributed axial and limited posts of locating part on spline set 106
109 installing holes 112 coordinated, are provided with three for the avoiding hollow groove 111 taking out locating part in the periphery of spline set 106.Locating part
The minimum diameter of three limiting sections 108 less than the minimum diameter of spline through hole.
Spline set 106 after machining is put in the injection mold of molding locating part, injection mo(u)lding locating part, so
Locating part is consolidated by the limited post 109 of the locating part installing hole 112 through spline set 106, the ring 110 of keeping out by limited post 109
Being scheduled on spline set 106, elastic arm 107 is placed in the avoiding hollow groove 111 of spline set 106, and limiting section 108 radially protruding spline is led to
Hole.
Spline set 106 is together arranged on outside locking nut 101 with locating part, and spline set body 115 is arranged on locking nut
Outside the rotation prevention portion 103 of 101, the limiting section 108 of locating part passes through elastic arm 107 elastic deformation by rotation prevention portion 103 towards blocking part
The end face of 104 keeps out the side axial limiting that spline set 106 deviates from attached body 114.
Embodiment 6
As shown in FIG. 13 to 15, as different from Example 5, the periphery of the rotation prevention portion 122 of locking nut 121 is provided with many
The individual stepped tooth uniformly circumferentially arranged, a stepped tooth forms a nut rotation prevention portion 123.
Spline set 124 includes ring-type spline set body 125, and the shaft core position at spline set body 125 is provided with center and leads to
Hole 126, the periphery along spline set body 125 extends in the same direction with inner circumferential and to be provided with mutually level outer bulge loop 127 and internal projecting ring 128,
On internal projecting ring 128, the end face along internal projecting ring 128 is radially convexly equipped with three limiting sections 129, along the week of each limiting section 129
To both sides, centered by central through hole 126 axle center, point is provided with incision internal projecting ring 128 and partial cut spline overlaps putting of body 125
Penetrating the straight line grooving 130 of shape, the internal projecting ring 128 being connected with limiting section 129 and spline set body 125 form elastic arm 131.Including
It is not provided with the medial surface of limiting section 129 on bulge loop 128 to be provided with the rotation prevention portion 122 of the external gear shape with locking nut 121 and join
Multiple dovetail grooves uniformly circumferentially arranged of the internal gear shape closed, single dovetail groove forms one and joins with nut rotation prevention portion 123
Rotation prevention portion 132 in the spline set closed, the cell wall of the dovetail groove on the medial surface of three limiting sections 129 encloses and forms stopping of non-closed
Turn through hole 133.At spline set body 125 towards axially projecting between side, internal projecting ring 128 and the outer bulge loop 127 of internal projecting ring 128
One spline boss 134.Periphery and the rotation prevention portion 122 of blocking part 135 are formed accommodating spacing towards the end face towards blocking part 135
The limiting section accommodation space in portion 129.
In the spline set of spline set 124, rotation prevention portion 132 is placed in outside the rotation prevention portion 122 of locking nut 121, spline overlaps 124
Outer and spline set 124 the spline boss 134 in blocking part 135 that elastic arm 131 is placed in locking nut 121 by elastic deformation inserts
In the spline circular hole 137 of attached body 136, the limiting section 129 of spline set 124 is locked the rotation prevention portion 122 of nut 121 towards blocking part
The end face of 135 keeps out the side axial limiting that spline set 124 deviates from attached body 136.
Embodiment 7
As shown in figure 16, as different from Example 1, the periphery of rotation prevention portion 151 is spline shape, and periphery forms five protrusions
Portion, each protuberance forms a nut rotation prevention portion 152.
The hole wall of spline through hole 153 is the spline connected in star that the periphery with the spline-shaped of rotation prevention portion 151 coordinates, and spline is led to
Single groove on the hole wall of hole 153 forms rotation prevention portion 154 in the spline set coordinated with nut rotation prevention portion 152.
Embodiment 8
As shown in Figure 17, Figure 18, as different from Example 1, locking nut 171 is the outer-hexagonal nut of standard.
The hole wall of spline through hole 172 is the intersection that the regular hexagon hole that two structures are identical rotates 30 °, leads in spline
Forming 12 pointed shape grooves on the hole wall in hole 172, each pointed shape groove is intersected planar shaped by the two of regular hexagon hole,
The two of pointed shape groove are intersected planar shaped and are become rotation prevention portion 175 in the spline set coordinated with the nut rotation prevention portion 174 of rotation prevention portion 173.
The periphery keeping out nut 176 is regular hexagon.The shaft core position keeping out nut 176 is provided with the outer spiral shell with screw rod 177
The tapped through hole 179 that stricture of vagina portion 178 coordinates, connects with tapped through hole 179, for the keeping away of clamping part 180 of empty avoiding locking nut 171
Emptying aperture 181, the aperture of emptiness avoiding hole 181 is more than the aperture of screwed hole.
Fastening structure includes being fastenedly connected assembly, the parent of integral structure and attached body.Parent and attached body form band
The annular solid 182 of fracture；Be provided with the most in the same direction at the two ends of the fracture of described annular solid 182 just to and parallel first installation
Portion 183 and the second installation portion 184.First installation portion 183 is provided with the through hole 186 that the polished rod portion 185 with screw rod 177 coordinates,
Deviate from the side of the second installation portion 184 at the first installation portion 183 and be provided with the circle of spline boss 187 matched in clearance with screw rod 177
Spline hole 188.The second described installation portion 184 is provided with the through hole 189 that the external thread part 178 with screw rod 177 coordinates,
Two installation portions 184 deviate from the side of the first installation portion 183 be provided with spline boss 190 matched in clearance with locking nut 171 only
Turn circular hole 191.
The external thread part 178 of screw rod 177 sequentially passes through on through hole the 186, second installation portion 184 on the first installation portion 183
Through hole 189 and the spline boss 187 of screw rod 177 insert in the round spline hole 188 of the first installation portion 183, screw rod 177 and locking
Nut 171 is threaded, and the head of screw rod 177 axially keeps out the first installation portion 183, and locking nut 171 axially keeps out the second peace
First installation portion 183 is fastened together by dress portion 184, screw rod 177 and locking nut 171 with the second installation portion 184.Screw rod
The spline boss 187 of 177 inserts and retrains relative first installation portion 183 of screw rod 177 in the round spline hole 188 of the first installation portion 183
Rotate.
Spline set 192 is arranged on outside locking nut 171, and the nut rotation prevention portion 174 of lance tooth inserts corresponding triangle
In the spline set of groove in rotation prevention portion 175, and the spline boss 190 of spline set 192 inserts the spline circular hole of the second installation portion 184
In 191, keeping out nut 176 and be arranged on the external thread part 178 of screw rod 177, locking nut 171 is placed in keeps out keeping away of nut 176
In emptying aperture 181, keep out nut 176 and spline set 192 is deviated from the side axial limiting of the second installation portion 184.Stopping of spline set 192
Turn boss 190 to overlap 192 with the spline circular hole 191 fiting constraint spline of the second installation portion 184 and rotate relative to the second installation portion 184,
Nut rotation prevention portion 174 rotates relative to locking nut 171 with rotation prevention portion 175 fiting constraint spline set 192 in spline set, and first installs
Portion 183 and the second installation portion 184 without rotating against, therefore screw rod 177, locking nut 171 non-rotatably with the first installation portion
183 and second installation portion 184 be installed together.
Embodiment 9
As shown in Figure 19, Figure 20, a kind of fastening structure, including being fastenedly connected assembly, parent 201, attached body 202.
Be fastenedly connected assembly include screw rod 203, locking nut 204, spline set 205, the expansion sleeve 206 of integral structure,
Keep out nut 207.
Blocking part 208 that screw rod 203 includes being sequentially distributed, polished rod portion 209, external thread part 210, blocking part 208 radial convex
External threads portion 210, is provided with the driving conical surface 211 driving expansion sleeve 206 to expand on blocking part 208.
Locking nut 204 is the outer-hexagonal nut of standard, and six planar shaped of the periphery of locking nut 204 arrange circumferentially
Six nut rotation prevention portions 212, shaft core position is provided with tapped through hole 213.
Spline set 205 is ring-type, and the shaft core position of spline set 205 is provided with the axial spline coordinated with locking nut 204
Through hole 214, spline set 205 an end face on an axially projecting spline boss 215, spline boss 215 keep out position
In circumferential direction, unscrew direction towards screw rod.The hole wall of spline through hole 214 is the regular hexagon hole rotation that two structures are identical
The intersection of 30 °, forms 12 pointed shape grooves on the hole wall of spline through hole 214, and each pointed shape groove is by positive six
The two of dihedral hole intersect planar shaped, and the two of pointed shape groove 11 are intersected planar shaped and become the nut rotation prevention portion with locking nut 204
Rotation prevention portion 216 in the spline set that 212 coordinate.
The periphery keeping out nut 207 is regular hexagon.The shaft core position keeping out nut 207 is provided with the outer spiral shell with screw rod 203
The tapped through hole 219 that stricture of vagina portion 210 coordinates, connects with tapped through hole 219, for the keeping away of clamping part 217 of empty avoiding locking nut 204
Emptying aperture 218, the aperture of emptiness avoiding hole 218 is more than the aperture of screwed hole.
Expansion sleeve 206 is circular tube shaped, the fluting of distending when the lower end of expansion sleeve 206 is provided with and expands for expansion sleeve 206
209。
Attached body 202 is provided with the through hole 210 that the blocking part 208 with expansion sleeve 206 periphery and screw rod 203 coordinates, at attached body
202 sides deviating from parent 201 are provided with and the spline circular hole 211 of spline boss 215 matched in clearance.
Parent 201 is provided with the blind hole 212 that the blocking part 208 with expansion sleeve 206 periphery and screw rod 203 coordinates.
The external thread part 210 of screw rod 203 is through expansion sleeve 206, the blocking part 208 of screw rod 203, demi-inflation set 206 peace
Being contained in the blind hole 212 of parent 201, the external thread part 210 of screw rod 203 is through the through hole 210 on attached body 202 and locking nut
The screwed hole of 204 is threaded, drives the hole wall of the through hole on the conical surface 211 and expansion sleeve 206 to be provided with the one end fits of fluting 209
Distending expansion sleeve 206, expansion sleeve 206 is fixed on the blind hole of parent 201 by the swelling frictional force between expansion sleeve 206 and parent 201
In 212, the inflated set 206 in blocking part 208 of screw rod 203 is axially kept out, and locking nut 204 axially keeps out attached body 202, screw rod
203, parent 201 and attached body 202 are fastened together by expansion sleeve 206 and locking nut 204.
Spline set 205 is arranged on outside locking nut 204, spline boss 215 keep out the spline circle being located proximate to attached body 202
Hole 211 or contact with spline circular hole 211, in the spline set of spline set 205, rotation prevention portion 216 is only placed in the nut of locking nut 204
Outer and spline set 205 the spline boss 215 in transfer part 212 inserts in the spline circular hole 211 of attached body 202, keeps out nut 207 and is arranged on
On the external thread part 210 of screw rod 203, the locking nut 204 protruding spline set 205 is placed in the emptiness avoiding hole 218 keeping out nut 207
In, keep out nut 207 and spline set 205 is deviated from the side axial limiting of attached body 202.In spline set, rotation prevention portion 216 stops with nut
Transfer part 212 fiting constraint locking nut 204 rotates relative to spline set 205, and spline boss 215 is unscrewing towards locking nut 204
The side in direction is kept out by the spline circular hole 211 of attached body 202, spline set 205 is arranged on outside locking nut 204 and jointly retrains spline
Set 205 rotates relative to attached body 202.Locking nut 204 non-rotatably with screw rod 203, expansion sleeve 206, parent 201 and attached body
202 are installed together.
Embodiment 10
As Figure 21 is to shown in 23, and one is fastenedly connected assembly, including screw rod 231, locking nut 232, spline set 233.
Locking nut 232 is stairstepping, including clamping part 234 and the rotation prevention portion 235 of external tooth wheel shape, the spline of regular hexagon
Portion 235 radially protruding clamping part 234.It is provided with clamping part 234, when mounting and dismounting locking nut 232, it is simple to spanner clamping lock
Jack panel 232.Be provided with multiple lance tooth uniformly circumferentially arranged in the periphery of rotation prevention portion 235, a lance tooth forms one
Individual nut rotation prevention portion 236, shaft core position is provided with tapped through hole 238.
Screw rod 231 includes external thread part 239 and the head of regular hexagon that the tapped through hole 238 with locking nut 232 coordinates
Portion 241, head 241 protrudes a spline boss 242 towards the end face axial of external thread part 239.
Spline set 233 is circular, and the shaft core position of spline set 233 is provided with axial the stopping coordinated with locking nut 232
Turn through hole 243, spline set 233 an end face on an axially projecting spline boss 244, spline boss 244 keep out position
Put in circumferential direction, unscrew direction towards screw rod.The hole wall of spline through hole 243 is the external gear shape with locking nut 232
The internal gear shape that rotation prevention portion 235 coordinates, the hole wall of spline through hole 243 is provided with multiple vee gutter the most arranged side by side,
Single vee gutter on the hole wall of spline through hole 243 forms rotation prevention portion in a spline set coordinated with nut rotation prevention portion 236
237, hole wall uniform three semicircles of circumference of spline set 233 are used for housing the glue groove 246 of fixing glue 245.
Fastening structure includes being fastenedly connected assembly, parent 248, attached body 247.
Attached body 247 is provided with the through hole 251 that the external thread part 239 with screw rod 231 coordinates, and deviates from parent 248 at attached body 247
Side be provided with and the spline circular hole 252 of spline boss 244 matched in clearance.
Parent 248 is provided with the through hole 250 that the external thread part 239 with screw rod 231 coordinates, and deviates from attached body 247 at parent 248
Side be provided with the round spline hole 249 with spline boss 242 matched in clearance.
The external thread part 239 of screw rod 231 sequentially passes through the through hole 250 on parent 248, the through hole 251 on attached body 247 and spiral shell
The spline boss 242 of bar 231 inserts in the round spline hole 249 of parent 248, and screw rod 231 is threadeded with locking nut 232, spiral shell
The head 241 of bar 231 axially keeps out parent 248, and locking nut 232 axially keeps out attached body 247, screw rod 231 and locking nut 232
Parent 248 is fastened together with attached body 247.The spline boss 242 of screw rod 231 inserts the round spline hole 249 of parent 248
Middle constraint screw rod 231 rotates relative to parent 248.
Spline set 233 is arranged on outside locking nut 232, spline boss 244 keep out the spline circle being located proximate to attached body 247
Hole 252 or contact with spline circular hole 252, in the spline set of spline set 233, rotation prevention portion 237 is only placed in the nut of locking nut 232
Outer and spline set 233 the spline boss 244 in transfer part 236 inserts in the spline circular hole 252 of attached body 247, at glue groove 246 and glue groove
Being filled with fixing glue 245 between the gap of rotation prevention portion 237 in 246 adjacent nut rotation prevention portions 236 and spline set, fixing glue 245 will
Spline set 233 is fixed on outside locking nut 232 and spline is overlapped 233 axial limitings.Spline boss 244 is towards locking nut 232
The side unscrewing direction is kept out by the spline circular hole 252 of attached body 247, spline set 233 is arranged on the outer common constraint of locking nut 232
Spline set 233 rotates relative to attached body 247, and nut rotation prevention portion 236 overlaps 233 phases with rotation prevention portion 237 fiting constraint spline in spline set
Rotating locking nut 232, parent 248 and attached body 247 are without rotating against, and therefore screw rod 231, locking nut 232 are non-rotatable
Ground is installed together with parent 248 and attached body 247.
Embodiment 11
As shown in Figure 24, Figure 25, as different from Example 2, screw rod 300 includes head 301, the cylinder being arranged in order
Polished rod portion 302, external thread part 303.
Locking nut 304 includes the installation portion 307 of the clamping part 305, rotation prevention portion 306 and the cylinder that are arranged in order, spline
Portion 306 radially protruding installation portion 307, clamping part 305 radially protruding rotation prevention portion 306.Installation portion 307 is provided with and the card of circumference
Groove 308.
As different from Example 1, the protuberance 310 of keeping out of snap ring 309 is stuck in lock by elastic deformation to fastening structure
In the draw-in groove 308 of the installation portion 307 of jack panel 304, spline set 311 is deviated from the side axial limiting of attached body 312.
Embodiment 12
As shown in Figure 26, Figure 27, as different from Example 3, it is fastenedly connected assembly and also includes screw rod spline sheet 330.
Screw rod 331 include the limiting section 332 being arranged in order, periphery be external tooth wheel shape keep out rotation prevention portion 333, polished rod portion
334 and external thread part 335.Limiting section 332 radially protruding keeps out rotation prevention portion 333, keeps out rotation prevention portion 333 radially protruding polished rod portion
334.Be provided with multiple lance tooth uniformly circumferentially arranged in the periphery keeping out rotation prevention portion 333, a lance tooth forms one
Screw rod rotation prevention portion 336.
Screw rod spline sheet 330 is square with rounded corners, and the center of screw rod spline sheet 330 is provided with and screw rod 331
The pad spline through hole 337 keeping out the internal tooth wheel shape that rotation prevention portion 333 coordinates of external tooth wheel shape, the hole wall of pad spline through hole 337
It is provided with multiple vee gutter being uniformly circumferentially distributed, in both sides projection from the bottom surface of pad that screw rod spline sheet 330 is relative
There is the built-in edges 344 (thinking that this mode uses bad) of pointed shape.Single triangle on the hole wall of pad spline through hole 337
Shape groove forms a pad rotation prevention portion 338 coordinated with screw rod rotation prevention portion 336.
The external thread part 335 of screw rod 331 sequentially passes through on the pad spline through hole 337 of screw rod spline sheet 330, parent 339
Through hole 340, through hole 342 on attached body 341 threaded with locking nut 343, the rotation prevention portion 333 of keeping out of screw rod 331 is placed in
In the pad spline through hole 337 of screw rod spline sheet 330, the limiting section 332 of screw rod 331 supports towards the end face keeping out rotation prevention portion 333
Gear screw rod spline sheet 330, the built-in edges 344 of screw rod spline sheet 330 embeds parent 339 and produces static friction constraint screw rod spline sheet
330 rotate relative to parent 339, and the screw rod rotation prevention portion 336 of lance tooth inserts the pad rotation prevention portion 338 of vee gutter and retrains screw rod
331 rotate relative to parent 339, and screw rod 331 is non-rotatably installed together with parent 339.
Embodiment 13
As shown in Figure 28, Figure 29, as different from Example 3, it is fastenedly connected assembly and also includes spline pad 360.
The shaft core position of spline pad 360 is provided with the round central through hole 363 of external thread part 362 matched in clearance with screw rod 361,
The end face of spline pad 360 is provided with the pad circle spline through hole 366 of and spline boss 365 matched in clearance of spline set 364.Circle
An axially projecting spline pad boss 367 on the peripheral end face of central through hole 363.The maximum outside diameter of spline pad 360 is more than spline
The maximum inner diameter of the spline through hole 368 of set 364.
The side that attached body 369 deviates from parent 370 is provided with the spline of spline pad boss 367 matched in clearance with spline pad 360
Circular hole 371.
The external thread part 362 of screw rod 361 sequentially passes through the through hole 372 on parent 370, the through hole 373 on attached body 369, stops
Turn the round central through hole 363 of pad 360, and the spline boss 374 of screw rod 361 inserts in the round spline hole 375 of parent 370, spline
The spline pad boss 367 of pad 360 inserts in the spline circular hole 371 of attached body 369, and screw rod 361 is threadeded with locking nut 376 will
Parent 370, attached body 369 and spline pad 360 are installed together.The spline pad boss 367 of spline pad 360 and the spline of attached body 369
Circular hole 371 fiting constraint spline pad 360 rotates relative to attached body 369.
Spline set 364 is arranged on outside locking nut 376, and the spline boss 365 of spline set 364 inserts the pad of spline pad 360
In sheet circle spline through hole 366, the spline boss 365 of spline set 364 coordinates about with the pad circle spline through hole 366 of spline pad 360
Bundle spline set 364 rotates relative to spline pad 360.
Embodiment 14
As shown in Figure 30, Figure 31, one is fastenedly connected assembly, including screw rod 461, spline pad 462, locking nut 463, stops
Pivoted housing 464.
Screw rod 461 includes external thread part 466 and the head of regular hexagon that the tapped through hole 465 with locking nut 463 coordinates
Portion 484, head 484 protrudes a spline boss 467 towards the end face axial of external thread part 466.
Locking nut 463 is stairstepping, including clamping part 468 and the rotation prevention portion 469 of external tooth wheel shape, the axle center of regular hexagon
Position is provided with the tapped through hole 465 coordinated with external thread part 466, rotation prevention portion 469 radially protruding clamping part 468.It is provided with clamping part
468, when mounting and dismounting locking nut 463, it is simple to spanner clamping locking nut 463.It is provided with many in the periphery of rotation prevention portion 469
The individual lance tooth uniformly circumferentially arranged, a lance tooth forms a nut rotation prevention portion 470.
Spline pad 462 is circular plate-like shape stamping parts, and it is logical that shaft core position is provided with that the external thread part 466 with screw rod 461 coordinates
Hole 471, the maximum inner diameter of through hole 471 is less than the maximum outside diameter of locking nut 463, and the end face of spline pad 462 is provided with one and stops
The pad spline through hole 472 of spline boss 475 matched in clearance of pivoted housing 464, spline pad 462 along the periphery of through hole 471 to side
The uniform multiple embedding teeth 473 being stamped and formed out of circumference, described embedding tooth 473 is wedge shape.
Spline set 464 is circular, and the shaft core position of spline set 464 is provided with axial the stopping coordinated with locking nut 463
Turn through hole 474, spline set 464 an end face on an axially projecting spline boss 475, spline boss 475 keep out position
Put in circumferential direction, unscrew direction towards screw rod.The hole wall of spline through hole 474 is the external gear shape with locking nut 463
The internal gear shape that rotation prevention portion 469 coordinates, the hole wall of spline through hole 474 is provided with multiple vee gutter the most arranged side by side,
Single vee gutter on the hole wall of spline through hole 474 forms rotation prevention portion in a spline set coordinated with nut rotation prevention portion 470
476, hole wall uniform three semicircles of circumference of spline set 464 are used for housing the glue groove 478 of fixing glue 477.
Fastening structure includes being fastenedly connected assembly, parent 479, attached body 480.
Attached body 480 is provided with the through hole 481 that the external thread part 466 with screw rod 461 coordinates, and the hardness of attached body 480 is less than only
Turn the hardness embedding tooth 473 of pad 462.
Parent 479 is provided with the through hole 482 that the external thread part 466 with screw rod 461 coordinates, and deviates from attached body 480 at parent 479
Side be provided with the round spline hole 483 with spline boss 467 matched in clearance.
The external thread part 466 of screw rod 461 sequentially passes through the through hole 482 on parent 479, the through hole 481 on attached body 480, stops
The through hole 471 turning pad 462 is threadeded with locking nut 463, and the spline boss 467 of screw rod 461 inserts the round spline of parent 479
In hole 483, screw rod 461 is non-rotatably mounted on parent 479, and locking nut 463 axially keeps out spline pad 462, spline pad
The embedding tooth 473 of 462 embeds constraint spline pad 462 in attached body 480 and rotates relative to attached body 480, screw rod 461 and locking nut 463
Parent 479, attached body 480 are fastened together with spline pad 462.
Spline set 464 is arranged on outside locking nut 463, and keeping out of spline boss 475 is located proximate to pad spline through hole 472
Or contact with pad spline through hole 472, the nut rotation prevention portion 470 of lance tooth inserts in the spline set of corresponding vee gutter
In rotation prevention portion 476, the spline boss 475 of spline set 464 inserts in pad spline through hole 472, in glue groove 478 and glue groove 478 phase
Being filled with fixing glue 477 between the gap of rotation prevention portion 476 in adjacent nut rotation prevention portion 470 and spline set, fixing glue 477 is by spline set
464 are fixed on locking nut 463 overlaps outward 464 axial limitings to spline.Spline boss 475 is unscrewing direction towards spline pad 462
Side kept out by pad spline through hole 472, spline set 464 is arranged on the outer common constraint spline of locking nut 463 to overlap 464 relative
Spline pad 462 rotates, nut rotation prevention portion 470 and rotation prevention portion 476 fiting constraint spline set 464 relative locking nuts in spline set
463 rotate, parent 479 and attached body 480 without rotating against, therefore screw rod 461, locking nut 463 non-rotatably with parent 479
It is installed together with attached body 480.
Embodiment 15
As shown in Figure 32, Figure 33, as different from Example 14, the clamping part 502 radially protruding spline of locking nut 501
Portion 503.
Spline set 504 includes ring-type spline set body 505, and the shaft core position at spline set body 505 is provided with center and leads to
Hole 506, is uniformly distributed three elastic arms 507 on the hole wall of central through hole 506.Each elastic arm 507 includes from central through hole
Horizontal projections 508 that the hole wall of 506 is formed radially inward, the U-shaped elastic arm that axle is formed down the most again
509, be formed radially inward from the end of U-shaped elastic arm 509 limiting section 510, be provided with on the medial surface of three limiting sections 510 with
Multiple triangles uniformly circumferentially arranged of the internal gear shape that rotation prevention portion 503 part of locking nut 501 external gear shape coordinates
Shape groove, the single vee gutter on the medial surface of limiting section 510 becomes spline in a spline set coordinated with nut rotation prevention portion 511
Portion 512, the cell wall of the vee gutter on the medial surface of three limiting sections 510 encloses the spline through hole 513 forming non-closed.Spline
Set 504 deviates from an axially projecting spline boss 514 on the end face of U-shaped elastic arm 509.
As different from Example 1, the rotation prevention portion 503 of locking nut 501 is towards attached body 515 for fastening structure.Spline
The U-shaped elastic arm 509 of set 504 is placed in outside the rotation prevention portion 503 of locking nut 501 by elastic deformation and the spline of spline set 504
Boss 514 inserts in the pad spline through hole 516 of spline pad 515, and the limiting section 510 of spline set 504 is locked the folder of nut 501
Hold portion 502 and keep out the side axial limitings that spline set 504 is deviated from attached body 515 towards the end face of attached body 515.
Embodiment 16
As shown in Figure 34 to Figure 36, as different from Example 15, two end faces of screw rod spline pad 521 are smooth
Face, is not provided with the friction particles for increasing friction or embeds projection etc..
Locking nut 522 includes the clamping part 523 of outer regular hexagon, spline blocking part 524, location division 525 successively；Spline
Blocking part 524 include the rotation prevention portion 526 being connected with clamping part 523 and be connected with location division 525, the blocking part 527 of empty avoiding, support
Stopper 527 radially protruding location division 525, rotation prevention portion 526 radially protruding blocking part 527 and clamping part 523.Locking nut 522
The periphery of rotation prevention portion 526 is provided with multiple stepped tooth uniformly circumferentially arranged, and a stepped tooth forms a nut rotation prevention portion 528.
Spline set 529 includes ring-type spline set body 530, and the shaft core position at spline set body 530 is provided with center and leads to
Hole 531, the periphery along spline set body 530 extends in the same direction with inner circumferential and to be provided with mutually level outer bulge loop 532 and internal projecting ring 533,
On internal projecting ring 533, the end face along internal projecting ring 533 is radially convexly equipped with three limiting sections 534, along the week of each limiting section 534
To both sides, centered by central through hole 531 axle center, point is provided with incision internal projecting ring 533 and partial cut spline overlaps putting of body 530
Penetrating the straight line grooving 535 of shape, the internal projecting ring 533 being connected with limiting section 534 and spline set body 530 form elastic arm 536.In limit
The medial surface in position portion 534 is provided with the internal gear shape that rotation prevention portion 526 part with locking nut 522 external gear shape coordinates
Multiple axial dovetail grooves uniformly circumferentially arranged, the dovetail groove on the medial surface of limiting section 534 forms one and nut spline
Rotation prevention portion 537 in the spline set that portion 528 coordinates, the cell wall of the dovetail groove on the medial surface of internal projecting ring 533 encloses formation non-closed
Spline through hole 553.At spline set body 530 towards axial between side, internal projecting ring 533 and the outer bulge loop 532 of internal projecting ring 533
Protrude a spline boss 539.
Spline pad 540 shaft core position is provided with the round central through hole 541 of location division 525 matched in clearance with locking nut 522,
The end face of spline pad 540 is provided with the pad circle spline through hole 542 of and spline boss 539 matched in clearance of spline set 529.Only
Two end faces turning pad 540 are smooth face, are not provided with the friction particles for increasing friction or embed projection etc..
Filling glue on an end face of screw rod spline pad 521, the external thread part 544 of screw rod 543 is from screw rod spline pad 521
The end face being not coated with glue stretches into the round central through hole 545 of screw rod spline pad 521, spline boss 552 stretches into screw rod spline pad 521
In spline screw rod round tube hole 546, screw rod spline pad 521 is enclosed within screw rod 543；An end face of spline pad 540 fills
Glue, through hole 551 on through hole 549 that the external thread part 544 of screw rod 543 is then passed through on parent 548, attached body 550, from spline pad
540 end faces being not coated with glue pass the round central through hole 541 of spline pad 540 and threaded with locking nut 522, locking nut
522 and screw rod 543 screw rod spline pad 521, parent 548 are fastened together with attached body 550, spline pad 540.Locking nut
522 lock with screw rod 543 during spline pad 540 be bonded together with attached body 550 surface and attached body 550 surface produces very
Big bonding force constraint spline pad 540 rotates relative to attached body 550, screw rod spline pad 521 and parent 548 surface be bonded together,
Producing the biggest bonding force constraint screw rod spline pad 521 to rotate relative to parent 548 with parent 548 surface, spline boss 552 stretches into
The spline screw rod round tube hole 546 of screw rod spline pad 521 retrains screw rod 543 and rotates relative to screw rod spline pad 521, screw rod 543, screw rod
Spline pad 521, the relative parent 548 of spline pad 540 and attached body 550 are the most rotatable.
Spline set 529 is placed in rotation prevention portion 526 elastic arm 536 outer, spline set 529 of locking nut 522 and is become by elasticity
Shape makes the limiting section 534 of elastic arm 536 be placed in outside the blocking part 527 of locking nut 522 and the spline boss 539 of spline set 529
Inserting in the pad circle spline through hole 542 of spline pad 540, the limiting section 534 of spline set 529 is locked the rotation prevention portion of nut 522
526 keep out the side axial limitings that spline set 529 deviates from attached body 550 towards the end face of attached body 550.
Embodiment 17
As shown in Figure 37, Figure 38, as different from Example 15, it is fastenedly connected assembly and also includes screw rod spline pad 601.
Screw rod spline pad 601 is circular plate-like shape stamping parts, and the external thread part 603 that shaft core position is provided with screw rod 602 coordinates
Through hole 615, an end face of screw rod spline pad 601 with the circle of spline boss 604 matched in clearance of screw rod 602 is only provided with one
Turn through hole 605, screw rod spline pad 601 along through hole 615 periphery to side circumference uniform multiple embedding teeth 606 being stamped and formed out,
Described embedding tooth 606 is wedge shape.
The external thread part 603 of screw rod 602 deviates from the side embedding tooth 606 through screw rod spline pad from screw rod spline pad 601
The through hole 615 of 601 and the spline boss 604 of screw rod 602 insert in the round spline through hole 605 of screw rod spline pad 601, are then passed through mother
Through hole 608 on body 607, the through hole 610 on attached body 609, the through hole 612 of spline pad 611 are threadeded with locking nut 613,
In the screw rod 602 rundown process with locking nut 613, the embedding tooth 606 of screw rod spline pad 601 embeds in parent 607, locking
Nut 613 axially keeps out spline pad 611, and the head 614 of screw rod 602 axially keeps out screw rod spline pad 601, screw rod spline pad 601
Embedding tooth 606 embed in parent 607 retrain screw rod spline pad 601 rotate relative to parent 607, the spline boss 604 of screw rod 602
In inserting the round spline through hole 605 of screw rod spline pad 601, constraint screw rod 602 rotates relative to screw rod spline pad 601, screw rod 602 He
Parent 607, attached body 609 are fastened together by locking nut 613 with screw rod spline pad 601, screw rod 602 non-rotatably with
Parent 607 is installed together.
Embodiment 18
As shown in Figure 39, Figure 40, as different from Example 15, spline pad 700 for square with rounded corners and is not provided with
Embedding tooth, spline pad 700 has elasticity, is bent to form the built-in edges of pointed shape in two lateral the same sides that spline pad 700 is relative
701.Spline pad 700 is kept out in one end of the rotation prevention portion 703 of locking nut 702, and the built-in edges 701 of spline pad 700 embeds parent 704
And produce static friction constraint spline pad 700 rotate relative to parent 704, spline pad 700 is non-rotatably mounted on attached body 705.
Embodiment 19
As shown in Figure 41, Figure 42, as different from Example 18, it is fastenedly connected assembly and also includes locating part 720.
Locking nut 721 includes clamping part 722, rotation prevention portion 723, blocking part 724 successively, and rotation prevention portion 723 radially protruding is pressed from both sides
Hold the blocking part 724 in portion 722 and empty avoiding.
Locating part 720 is plastic parts, including circular locating part body 725, locating part body 725 peripheral shape with only
Pivoted housing 726 peripheral shape coordinates and similar, and in locating part body 725, circular diameter is slightly larger than the rotation prevention portion 723 of locking nut 721
External diameter, locating part body 725 is along inner circle axially the most radially inwardly projecting three equally distributed Elastic buckles 727, each elasticity
The blocking part 728 of buckle 727 is towards locating part body 725 axis direction, at locating part body 725 and Elastic buckle 727 homonymy
End face protrude above six roots of sensation limited post 729, be provided with in the end of limited post 729 and keep out ring 730.
Spline set 726 is metalwork, is provided with the circular spline set body 732 of spline through hole 731 including center, only
Turn the avoiding hollow groove 733 of the Elastic buckle 727 of hole wall uniform three the empty avoiding locating parts 720 of circumference of through hole 731, at spline through hole
731 are not provided with rotation prevention portion 734 in the evenly distributed spline set having pointed shape tooth in position of avoiding hollow groove 733, set on spline set 726
There is the installing hole 735 that six circumferentially distributed axial limited posts 729 with locating part 720 coordinate, outside spline set 726
It is provided with three week for the holding tank 736 taking out locating part 720.
Spline set 726 after machining is put in the injection mold of molding locating part 720, injection mo(u)lding locating part
720, the limited post of such locating part 720 729 is through the installing hole 735 of spline set 726, keep out ring 730 by limited post 729
Being fixed on by locating part 720 on spline set 726, Elastic buckle 727 is placed in the avoiding hollow groove 733 of spline set 726.
The periphery of spline pad 737 includes connecting about two arc surfaces substantially symmetrical about its central axis, connects the parallel of two arc surfaces
Two planes, the built-in edges 739 of spline pad 737 is two arc-shaped edges.
Spline set 726 is together arranged on outside locking nut 721 with locating part 720, and spline set body 732 is arranged on locking screw
Outside the rotation prevention portion 723 of female 721, the Elastic buckle 727 of locating part 720 passes through elastic deformation by rotation prevention portion 723 towards blocking part 724
End face keep out the side axial limitings that spline set 726 is deviated from attached body 740.
Embodiment 20
As shown in Figure 43, Figure 44, a kind of fastening structure, including being fastenedly connected assembly, connected piece 1031.
It is fastenedly connected assembly and includes 1032, two locking nuts that structure is identical 1033 of threaded connector of U-shaped, two knots
The spline set 1034 that structure is identical, what two structures were identical keeps out nut 1035.
Threaded connector 1032 includes the threaded connector body 1036 of U-shaped, and the two ends of threaded connector body 1036 are equal
Being provided with external thread part 1037, the external diameter of external thread part 1037 is less than the external diameter of threaded connector body 1036, two external thread parts
1037 are parallel to each other and the corresponding end face of normal thread connector body 1036.
Locking nut 1033 is outer-hexagonal nut, six planar shaped of the periphery of locking nut 1033 arrange circumferentially six
Individual nut rotation prevention portion 1038, shaft core position is provided with tapped through hole 1039.
The shaft core position of spline set 1034 is provided with the axial spline through hole 1040 coordinated with locking nut 1033, in spline
Set 1034 an end face on an axially projecting spline boss 1041, spline boss 1041 keep out position circumferential direction,
Direction is unscrewed towards screw rod.The hole wall of spline through hole 1040 is the phase knot that the regular hexagon hole that two structures are identical rotates 30 °
Structure, forms 12 pointed shape grooves on the hole wall of spline through hole 1040, and each pointed shape groove is by the two of regular hexagon hole
Intersecting plane is formed, and the two of pointed shape groove are intersected planar shaped and become coordinate with the nut rotation prevention portion 1038 of locking nut 1033 to stop
Rotation prevention portion 1042 in pivoted housing.
Keeping out nut 1035 shaft core position and be provided with tapped through hole 1046, tapped through hole 1046 connects empty avoiding locking nut 1033
Emptiness avoiding hole 1043.
Connected piece 1031 is provided with two through holes coordinated with the external thread part 1037 of described threaded connector 1032
1044, the axial line distance of two through holes 1044 is equal with the axial line distance of two external thread parts 1037, connected piece 1031 towards
The side of spline set 1034 is provided with and the spline circular hole 1045 of spline boss 1041 matched in clearance.
The external thread part 1037 at threaded connector 1032 two ends is each passed through on connected piece 1031 corresponding through hole 1044
Threaded with corresponding locking nut 1033, two through holes 1044 on connected piece 1031 retrain threaded connector 1032 phase
Rotating connected piece 1031, threaded connector body 1036 axially keeps out connected piece 1031 side, locking nut 1033 axle
To keeping out connected piece 1031 opposite side, the locking nut 1033 at threaded connector 1032 two ends is by threaded connector 1032 and quilt
Connector 1031 is fastened together.
Spline set 1034 is arranged on outside locking nut 1033, and keeping out of spline boss 1041 is located proximate to spline circular hole 1045
Or contact with spline circular hole 1045, nut rotation prevention portion 1038 and rotation prevention portion 1042 fiting constraint locking nut 1033 phase in spline set
To spline set 1034 rotation, spline boss 1041 is supported by spline circular hole 1045 in the side unscrewing direction towards locking nut 1033
Gear, spline set 1034 is arranged on the outer common constraint spline set 1034 of locking nut 1033 and rotates relative to connected piece 1031, keeps out
Spline is overlapped 1034 axial limitings outside the nut rotation prevention portion 1038 of locking nut 1033 by nut 1035, threaded connector 1032 liang
Together with the locking nut 1033 of end is non-rotatably mounted at threaded connector 1032, connected piece 1031.
Embodiment 21
As shown in Figure 45 to Figure 47, as different from Example 5, along uniform three sides of circumference, periphery of spline through hole 1071
The empty avoiding through hole 1072 of shape, is provided with three holding tanks in the periphery of spline set 1073.Spline through hole 1071 is the internal gear of Guan Bi
Shape hole.
Locating part 1074 includes circular locating part body 1075, in the center of locating part body 1075 is provided with
Heart through hole 1076, the minimum-value aperture of central through hole 1076 is more than the maximum diameter of hole of spline through hole 1071.At central through hole 1076
Hole wall uniform three grooves 1077 of circumference, the end face of vertical locating part body 1075, corresponding each equal homonymy of groove 1077 are provided with
The first elastic arm 1078 flushed with the bottom surface of each groove 1077, along the first elastic arm 1078 end to central through hole 1076
The arc elastic arm 1079 of axle center circular arc bending, arcuately the end of elastic arm 1079 forms the second elastic arm the most vertically downward
1080, form limiting section 1081 in the end of the second elastic arm 1080 to central through hole 1076 axle center horizontal buckling.First is elastic
Arm the 1078, second elastic arm 1080 is symmetrical about the axial line of arc elastic arm 1079.First elastic arm 1078, arc elastic arm
1079, the second elastic arm 1080 forms U-shaped elastic arm 1082.Limiting section 1081 and locating part body 1075 are at same plane.Limit
The external diameter of position part body 1075 is less than the external diameter of spline set 1073.U-shaped elastic arm 1082 coordinates with empty avoiding through hole 1072.
Spline through hole 1071 axis of spline set 1073 is closed with the axial location of the central through hole 1076 of locating part 1074
System's correspondence, three U-shaped elastic arms 1082 on locating part 1074 are separately mounted to three empty avoiding through holes on spline set 1073
In 1072, the end face of locating part body 1075 is together with the end face butt-joint of spline set 1073.The limiting section of locating part 1074
The spline through hole 1071 of 1081 radially protruding spline sets 1073.First elastic arm 1078 and the second elastic arm of locating part 1074
Distance between 1080 protrudes the hole wall of the spline through hole 1071 of spline set 1073 more than the limiting section 1081 of locating part 1074
Length, to provide deformation space.
Spline set 1073 is together arranged on outside the rotation prevention portion 1084 of locking nut 1083 with locating part 1074, and spline set
The spline boss (not shown) of 1073 inserts in the spline circular hole (not shown) of attached body 1085, the U-shaped elastic arm of locating part 1074
1082 make limiting section 1081 insert the accommodating sky of limiting section 1081 that rotation prevention portion 1084 is formed with blocking part 1086 by elastic deformation
In and kept out, spline set 1073 deviated from side shafts of attached body 1085 towards the end face of blocking part 1086 by rotation prevention portion 1084
To spacing.
Embodiment 22
As shown in Figure 48 to Figure 50, as different from Example 21, locating part includes the elastic spacing that three structures are identical
Part 1101.Elastic spacing one 1101 is bent by the sheet metal of strip and forms.Elastic spacing one 1101 includes the limiting section of level
1102, vertical limiting section 1102 bending the first elastic arm 1103, along the first elastic arm 1103 end to limiting section 1102
Direction horizontal buckling, again deviate from limiting section 1102 direction bend the most obliquely, again arc transition bend the most obliquely, court again
To the buckle 1104 of limiting section 1102 direction horizontal buckling, then second bent downwards along buckle 1104 end vertical
Elastic arm 1105, then the blocking part of limiting section 1102 direction horizontal buckling is deviated from along the end of the second elastic arm 1105
1106, blocking part 1106 and limiting section 1102 are positioned at approximately the same plane.The two horizontal parts 1107 of buckle 1104 is positioned at same flat
Face.Distance between limiting section 1102 and the horizontal part 1107 of corresponding buckle 1104 is equal to the thickness of spline set 1108.
The limiting section 1102 of elastic spacing one 1101 is overlapped the axle center of 1108 and by buckle 1104 through spline towards spline
Elastic spacing one 1101 is installed together by the empty avoiding through hole 1109 on set 1108 with spline set 1108, elastic spacing one 1101
The hole wall of the spline through hole 1110 of limiting section 1102 radially protruding spline set 1108, between two elastic arms of elastic spacing one 1101
Distance protrude the length of hole wall of spline through hole 1110 of spline set 1108 more than the limiting section 1102 of elastic spacing one 1101,
To provide deformation space.In the same way two other elastic spacing one 1101 is installed together with spline set 1108.
Spline set 1108 and three elastic spacing ones 1101 being installed together together are arranged on stopping of locking nut 1111
Outside transfer part 1112, and in the spline circular hole (not shown) of the spline boss (not shown) attached body 1113 of insertion of spline set 1108, bullet
Buckle 1104 and first elastic arm 1103 of property locating part 1101 make limiting section 1102 insert locking nut by elastic deformation
Towards keeping out in limiting section 1102 accommodation space that the rotation prevention portion 1112 of 1111 and blocking part 1114 are formed and by rotation prevention portion 1112
The side axial limiting of attached body 1113 is kept out, deviated from spline set 1108 to the end face in portion 1114.
Embodiment 23
As shown in figure 51, as different from Example 22, the blocking part 1242 at each elastic spacing one 1241 deviates from card
The side of button 1243 is provided with padded protruding the 1244 of more than three, and limiting section 1245 and blocking part 1242 are in approximately the same plane.
Padded protruding 1244 make limiting section 1245 and attached body (not shown) and spline set (not shown) matched in clearance, by spacing for spline group
During part is arranged on the spline blocking part 1242 of screw rod (not shown), the first elastic arm 1246 and the elastic change of buckle 1243
During shape, it is simple to limiting section 1245 moves between spline set and attached body.
Distance between buckle 1243 and blocking part 1242 is equal to the thickness of spline set, from the top of buckle 1243 to limit
The both sides, direction of position part progressively reduce, the elastic spacing one 1241 of this structure, the empty avoiding that the second elastic arm 1247 overlaps with spline
Through hole tight fit, when buckle 1243 and the first elastic arm 1246 do not have elastic deformation, elastic spacing one 1241 will not stop relatively
Pivoted housing is subjected to displacement, and in the environment of fastening structure is in strenuous vibration, can be substantially reduced noise, and it is spacing to be easy to spline
Assembly is arranged on outside the spline blocking part 1242 of screw rod；First elastic arm 1246 coordinates with empty avoiding via clearance, spline is being limited
During hyte part is arranged on screw rod, when the first elastic arm 1246 and buckle 1243 elastic deformation, the first elastic arm 1246 can
In empty avoiding through hole, free motion, makes limiting section 1245 be more easy to stretch in limiting section accommodation space.
Embodiment 24
As in figure 52, as different from Example 21, from the top of arc elastic arm 1261 to the direction of locating part
Both sides progressively reduce, the locating part of this structure, half arc bullet that the first elastic arm 1262 connects with the first elastic arm 1262
Property arm 1261 and spline set (not shown) empty avoiding through hole (not shown) tight fit, half arc connected with the second elastic arm 1263
Shape elastic arm the 1261, second elastic arm 1263 coordinates with empty avoiding via clearance, so elastic at arc elastic arm 1261 and second
When arm 1263 does not has elastic deformation, locating part will not be subjected to displacement by spline set relatively, is in strenuous vibration at fastening structure
In the environment of, can be substantially reduced noise, and be easy to spline limit assembly and be arranged on the spline blocking part of screw rod (not shown) and (do not show
Go out) outward；During spline limit assembly is arranged on screw rod, arc elastic arm 1261 and the elastic change of the second elastic arm 1263
During shape, half arc elastic arm 1261 and the second elastic arm 1263 elasticity can be freely-movable in empty avoiding through hole, make limiting section more
Easily stretch in limiting section accommodation space.
Embodiment 25
As shown in Figure 52, Figure 54, crankshaft connecting rod system includes being fastenedly connected assembly, bent axle 1281, connection rod set.
Being fastenedly connected assembly as different from Example 1, head 1297 periphery of screw rod 1288 includes that a central angle is big
In the arc surfaces of 180 ° and a spline plane 1282 connecting arc surface two ends.
Connection rod set includes gonnecting rod body 1283, connecting rod cap 1284, big end bearing shell 1285.Gonnecting rod body 1283 includes even
Bar major part 1286 and small end of connecting rod 1287.Big end 1286 is provided with the through hole that the external thread part 1289 with screw rod 1288 coordinates
1290, connecting rod cap 1284 is provided with the through hole 1291 that the external thread part 1289 with screw rod 1288 coordinates.At connecting rod cap
1284 sides deviating from big end 1286 are provided with the circular major part spline coordinated with the spline boss 1293 of spline set 1292
Hole 1294.
Big end bearing shell 1285 is filled the span of a man's arms outside bent axle 1281, and big end 1286 and connecting rod cap 1284 are filled the span of a man's arms even
Outside bar major part bearing shell 1285；The external thread part 1289 of screw rod 1288 is through the through hole 1290 on big end 1286, big end
Through hole 1291 on lid 1284 is threadeded with the tapped through hole 1296 of locking nut 1295 and the spline plane of screw rod 1288
1282 are kept out constraint screw rod 1288 by the sidewall of big end 1286 rotates relative to big end 1286, and screw rod 1288 is big with connecting rod
1286 are non-rotatably mounted at together, and the head 1297 of screw rod 1288 axially keeps out big end 1286, locking nut
1295 axially keep out connecting rod cap 1284, screw rod 1288 and locking nut 1295 by big end 1286 and connecting rod cap
1284 are fastened together.
Spline set 1292 is arranged on outside the rotation prevention portion 1298 of locking nut 1295 and the spline boss 1293 of spline set 1292
Keep out and be located proximate to or contact with major part spline hole 1294, keep out nut 1299 and be arranged on the external thread part 1289 of screw rod 1288
On, keep out nut 1299 and spline set 1292 is deviated from the side axial limiting of connecting rod cap 1284.The spline of spline set 1292
Boss 1293 unscrews the side in direction at locking nut 1295 and is kept out constraint spline set 1292 by major part spline hole 1294 and relatively connect
The big skull of bar 1284 rotates, and nut rotation prevention portion 1300 is locked with in spline set, rotation prevention portion 1301 fiting constraint spline set 1292 is relative
Nut 1295 rotates, and screw rod 1288 is non-rotatably pacified with locking nut 1295, big end 1286 and connecting rod cap 1284
It is fitted together.
For the present invention, spline that spline puts set spline boss can be two or more, attached body is provided with and
The attached body spline hole that spline set spline boss coordinates one by one；Attached body spline hole may also be the integral multiple of spline set spline boss；Root
According to embodiments of the invention, those skilled in the art is not required to any creative work and achieves that, therefore no longer by concrete reality
The mode of executing illustrates.
Claims (21)
1. a fastening structure, including being fastenedly connected assembly, parent, attached body；It is fastenedly connected assembly and includes screw rod, locking screw
Female；Screw rod includes external thread part, spline blocking part, spline blocking part radially protruding external thread part；Be equipped with on parent, attached body with
The through hole that the external thread part of screw rod coordinates；Screw rod is threadeded through the through hole on parent, the through hole of attached body with locking nut, spiral shell
Bar is non-rotatably installed together with parent；
It is characterized in that: be fastenedly connected assembly and also include spline set；
The periphery of locking nut is provided with the nut rotation prevention portion that circumference is evenly distributed, axial；
Being provided only with an axial spline through hole on spline set, the hole wall of spline through hole is provided with and coordinates with nut rotation prevention portion
Rotation prevention portion in spline set；An end face of spline set is axially convexly equipped with constraint spline set unscrew direction towards locking nut and rotate
Spline set spline boss, spline set spline boss keep out position in circumferential direction, unscrew direction towards locking nut；
The side deviating from parent on attached body is provided with and the attached body spline hole of spline set spline boss matched in clearance；
Spline set is arranged on outside locking nut, and spline set spline boss inserts in attached body spline hole, and spline set is by axial limiting
Outside locking nut；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline set
Spline boss is kept out constraint spline set in the side unscrewing direction towards locking nut by attached body spline hole and is rotated relative to attached body；
Screw rod, locking nut are non-rotatably installed together with parent, attached body.
2. a fastening structure, including being fastenedly connected assembly, parent, attached body；It is fastenedly connected assembly and includes screw rod, locking screw
Female；Screw rod includes external thread part, spline blocking part, spline blocking part radially protruding external thread part；Be equipped with on parent, attached body with
The through hole that the external thread part of screw rod coordinates；
It is characterized in that: be fastenedly connected assembly and also include spline set, spline pad；
The periphery of locking nut is provided with the nut rotation prevention portion that circumference is evenly distributed, axial；
Being provided only with an axial spline through hole on spline set, the hole wall of spline through hole is provided with and coordinates with nut rotation prevention portion
Rotation prevention portion in spline set；An end face of spline set is axially convexly equipped with constraint spline set unscrew direction towards locking nut and rotate
Spline set spline boss, spline set spline boss keep out position in circumferential direction, unscrew direction towards locking nut；
Spline pad is provided with through hole and the spline pad of spline set spline boss matched in clearance that the external thread part with screw rod coordinates
Spline hole；On the end face of attached body, it is convexly equipped with spline pad spline boss at spline pad；
The height of spline set spline boss, less than or equal to the thickness of spline pad, is provided with on attached body and joins with spline pad spline boss
The attached body spline hole closed；
Screw rod is threadeded through the through hole on parent, the through hole on attached body, the through hole of spline pad with locking nut, and screw rod can not
It is installed together with parent rotatably；
Spline pad spline boss retrains spline pad in inserting attached body spline hole and rotates relative to attached body；
Spline set is arranged on outside locking nut, and spline set spline boss inserts in spline pad spline hole, and spline set is axially limited
Position is outside locking nut；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline
Set spline boss is kept out constraint spline in the side unscrewing direction towards locking nut by spline pad spline hole and is overlapped relative spline pad
Rotate；
Screw rod, locking nut are non-rotatably installed together with parent, attached body, spline pad.
3. be fastenedly connected an assembly, also include screw rod, locking nut,；Screw rod includes external thread part, spline blocking part, spline
Blocking part radially protruding external thread part；It is characterized in that: also include spline set；The periphery of locking nut is provided with circumference uniformly row
Row, axial nut rotation prevention portion；
Spline set, for ring-type, be provided only with an axial spline through hole on spline set, be provided with week on the hole wall of spline through hole
Rotation prevention portion in evenly distributed, axial spline set；Spline set an end face on be axially convexly equipped with attached body spline hole and/
Or spline pad spline hole coordinates, constraint spline set unscrews, towards locking nut, the spline set spline boss that direction rotates, spline set is only
Turn boss keeps out position in circumferential direction, unscrew direction towards locking nut；
Screw rod and locking nut are threaded, and spline set is arranged on outside locking nut；Nut rotation prevention portion and rotation prevention portion in spline set
Fiting constraint locking nut rotates relative to spline set.
4. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: the height of spline set spline boss is more than only
The axial length of rotation prevention portion in pivoted housing.
5. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: also include spline pad；Spline pad sets
There are through hole and the spline pad spline hole of spline set spline boss matched in clearance that the external thread part with screw rod coordinates；At spline pad
On the end face of attached body, axially it is convexly equipped with the spline pad spline boss coordinated with attached body spline hole；Spline set spline boss
Highly less than or equal to the thickness of spline pad.
6. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: also include spline pad；Spline pad sets
There are through hole and the spline pad spline hole of spline set spline boss matched in clearance that the external thread part with screw rod coordinates；At spline pad
The side deviating from spline set is provided with Embedded Division or is coated with friction particles；Described Embedded Division is to be arranged on the end face of spline pad
Embed protruding or for be arranged on the built-in edges outside spline pad；The height of spline set spline boss is less than or equal to spline pad
Thickness.
7. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: described spline set includes ring-type spline
Set body, the shaft core position at spline set body is provided with central through hole, is axially convexly equipped with two or more from spline set body homonymy
Elastic arm, the end of elastic arm be formed radially inward limiting section, the medial surface of limiting section is provided with in described spline set
Rotation prevention portion, limiting section is provided with the spline through hole of the medial surface formation non-closed of the interior rotation prevention portion of spline set；Spline set spline boss with
Limiting section homonymy.
8. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: described spline set also includes elastic arm；
Spline set is provided with connect with spline through hole and coordinates with elastic arm, for housing elastic arm and providing change for elastic arm deformation
The avoiding hollow groove in shape space, the described hole that spline through hole is non-closed；One end of elastic arm and spline set deviate from spline set spline
The side of boss is connected, the other end towards spline be arranged with spline set spline boss side and in the end of this end radially to
The axle center of spline through hole is provided with limiting section, and limiting section is vertical with the axis of spline through hole, limiting section radially protruding spline through hole；Institute
The elastic arm stated is the most right with described avoiding hollow groove.
9. one as claimed in claim 3 is fastenedly connected assembly, it is characterised in that: also including locating part, a spline set is right
Answer a locating part；
Locating part includes ring-type locating part body, is provided only with a central through hole, center in the center of locating part body
The minimum-value aperture of through hole is more than the maximum diameter of hole of spline through hole；Also include the plural elasticity being connected with locating part body
Arm, is provided with the limiting section parallel with locating part body, limiting section radially protruding in elastic arm end to central through hole axis direction
Central through hole；The minimum diameter of plural limiting section is less than the minimum diameter of spline through hole；
Spline set is provided with and coordinates with elastic arm, for housing elastic arm and providing the empty avoiding of deformation space for elastic arm deformation
Space；Locating part is installed together with spline set, the empty avoiding interference fit that elastic arm overlaps with spline；The limiting section footpath of locating part
To the spline through hole protruding spline set；In the direction parallel with locating part body, the maximum deflection of elastic arm is more than locating part
Limiting section protrude the length of hole wall of spline through hole of spline set.
10. one as claimed in claim 9 is fastenedly connected assembly, it is characterised in that: the limiting section of locating part all protrudes spacing
Part body, locating part body is arranged on an end face of spline set, and elastic arm axially stretches in empty avoiding space, and limiting section is radially
Stretch in spline through hole.
11. one as claimed in claim 9 are fastenedly connected assembly, it is characterised in that: at the central through hole of described locating part
Hole wall be provided with plural groove；Described elastic arm includes the first elastic arm being connected with locating part body, along
The curved spring arm that one elastic arm end bends to the axle center of central through hole, the end along curved spring arm is formed the most vertically downward
The second elastic arm, described limiting section is arranged on the end of the second elastic arm；First elastic arm, curved spring arm, the second bullet
Property arm formed U-shaped elastic arm, U-shaped elastic arm is just to groove.
12. one as claimed in claim 3 are fastenedly connected assembly, it is characterised in that: also include locating part；Described locating part
Including plural elastic spacing one；Described elastic spacing one includes that the limiting section of level, the bending of vertical limiting section form
The first elastic arm, bend along the first elastic arm end to limiting section direction and parallel limiting section, to deviate from limiting section direction more anti-
To bending, reversely bend obliquely again, be re-directed towards limiting section direction and the buckle of parallel limiting section bending obliquely, then edge
The second elastic arm that buckle end bends downwards, then deviate from the parallel limiting section in limiting section direction along the end of the second elastic arm
The blocking part of bending；
Spline set is provided with and coordinates with elastic arm, for housing elastic arm and providing the empty avoiding of deformation space for elastic arm deformation
Hole；
The axle center that the limiting section of elastic spacing one is overlapped towards spline the empty avoiding through hole that Elastic buckle is put through spline,
Be snapped by elastic spacing one side keep out, side is kept out by blocking part and is installed together with locating part by elastic spacing one,
The hole wall of spline through hole of the limiting section radially protruding spline set of elastic spacing one, between two elastic arms of elastic spacing one away from
Length from the hole wall of the spline through hole protruding spline set more than the limiting section of elastic spacing one.
13. one as described in claim 3 to 6 any one claim are fastenedly connected assembly, it is characterised in that: described
It is fastenedly connected assembly and also includes locating part；Locking nut is provided with draw-in groove；Described locating part is snap ring, described snap ring bag
Include the ring-type snap ring body of non-closed, be provided with the limit convex of more than three radially protruding snap ring bodies in the periphery of snap ring body
Bar；The inner circumferential of snap ring body coordinates with the periphery of the card trench bottom of locking nut；The external diameter of spacing raised line stops more than spline set
Turn the maximum diameter of hole of through hole；Snap ring is arranged on the interior side axial limiting that spline set deviates from nut spline protuberance of draw-in groove.
14. are fastenedly connected assembly as described in claim 7 to 12 any one claim；It is characterized in that: locking nut
Periphery set the limiting section accommodation space coordinated with limiting section, at limiting section accommodation space towards the face of the spline blocking part of screw rod
Face is kept out for be used for keeping out limiting section；
Spline set is arranged on outside locking nut, elastic arm make limiting section insert in limiting section accommodation space by elastic deformation and
The side axial limiting of external thread part is kept out, is deviated from spline set in the face of keeping out of limited portion accommodation space.
15. one as described in claim 3 to 6 any one claim are fastenedly connected assembly, it is characterised in that: at screw rod
Spline blocking part rotate relative to parent with for retraining locking nut screw rod towards being axially convexly equipped with on the end face of external thread part
Spline boss.
16. 1 kinds of fastenings being fastenedly connected assembly included as described in claim 3,4,7 to 12 any one claim are even
Access node structure, it is characterised in that: also include parent, attached body；Be equipped with on parent, attached body that the external thread part with screw rod coordinates is logical
Hole；
It is fastenedly connected assembly and also includes spline pad；Spline pad is provided with through hole and spline that the external thread part with screw rod coordinates
The spline pad spline hole of set spline boss matched in clearance；The height of spline set spline boss is less than or equal to the thickness of spline pad；
Screw rod is threadeded through the through hole on parent, the through hole on attached body, the through hole of spline pad with locking nut, and screw rod can not
It is installed together with parent rotatably；
Being provided with Embedded Division in spline acting as a cushion from the side of spline set, the hardness of attached body is less than the hardness of the Embedded Division of spline pad, only
The Embedded Division attached internal constraint spline pad of embedding turning pad rotates relative to attached body；Or be coated with from the side of spline set in spline acting as a cushion
Friction particles, produces sufficiently large restrictions of the frictional force spline pad and rotates relative to attached body between the friction particles of spline pad with attached body；Or
Spline pad is fixed on attached body constraint spline pad by fixing glue and rotates relative to attached body；
Spline set is arranged on outside locking nut, and spline set spline boss inserts in spline pad spline hole, and spline set is axially limited
Position is outside locking nut；Nut rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set, spline
Set spline boss is kept out constraint spline in the side unscrewing direction towards locking nut by spline pad spline hole and is overlapped relative spline pad
Rotate；
Screw rod, locking nut are non-rotatably installed together with parent, attached body, spline pad.
17. a kind of fastening structures as claimed in claim 16, it is characterised in that: in the spline blocking part of screw rod towards outward
Axially be convexly equipped with on the end face of threaded portion with for retraining the spline boss that locking nut screw rod rotates relative to parent；Described stops
Turning pad and also include screw rod spline pad, the spline pad spline hole on described screw rod spline pad coordinates with the spline boss of screw rod；
Being provided with Embedded Division at screw rod spline pad towards the side of parent, the hardness of parent is hard less than the Embedded Division of screw rod spline pad
Degree, in the Embedded Division of screw rod spline pad embeds parent, constraint screw rod spline pad rotates relative to parent；Or screw rod spline pad towards
The side of parent is coated with friction particles, produces sufficiently large restrictions of the frictional force spiral shell between the friction particles of screw rod spline pad and parent
Bar spline pad rotates relative to parent；Or screw rod spline pad is fixed on parent constraint screw rod spline pad relative to parent by fixing glue
Rotate；
Retrain screw rod in the spline pad spline hole of the spline boss insertion screw rod spline pad of screw rod to rotate relative to screw rod spline pad；Spiral shell
Bar is non-rotatably installed together with parent.
18. 1 kinds of fastenings being fastenedly connected assembly included as described in claim 3,4,7 to 12 any one claim are even
Access node structure, it is characterised in that: also include parent, attached body；
Described parent and attached body are integral type structure, form the annular solid of band fracture；At the fracture of described annular solid two
End is provided with the first relative installation portion and the second installation portion the most in the same direction；
First installation portion, the second installation portion are equipped with the through hole that the external thread part with described screw rod coordinates；Outside screw rod
Threaded portion
Threaded through the through hole on the through hole on the first installation portion, the second installation portion with locking nut, screw rod, locking nut
First installation portion and the second installation portion being installed together, screw rod is non-rotatably installed together with the first installation portion；
The side deviating from the second installation portion on first installation portion is provided with and the first installation portion of spline set spline boss matched in clearance
Spline hole；Spline set is arranged on outside locking nut, and spline set spline boss inserts in the first installation portion spline hole, and spline set quilt
Axial limiting is outside locking nut；Nut rotation prevention portion revolves relative to spline set with rotation prevention portion fiting constraint locking nut in spline set
Turning, spline set spline boss is kept out constraint spline set in the side unscrewing direction towards locking nut by the first installation portion spline hole
Rotate relative to the first installation portion；
Screw rod, locking nut are non-rotatably installed together with the second installation portion, the first installation portion.
19. 1 kinds of crankshaft connecting rod systems, including bent axle, connection rod set, are fastenedly connected assembly；Connection rod set includes that gonnecting rod body, connecting rod are big
Skull, big end bearing shell；It is fastenedly connected assembly and includes screw rod, locking nut；Screw rod includes external thread part, spline blocking part,
Spline blocking part radially protruding external thread part；Gonnecting rod body includes big end and small end of connecting rod, on big end, big end lid
It is equipped with the through hole that the external thread part with screw rod coordinates；
It is characterized in that: be fastenedly connected assembly and also include spline set, locating part；
The periphery of locking nut is provided with the nut rotation prevention portion that circumference is evenly distributed, axial；
Being provided only with an axial spline through hole on spline set, the hole wall of spline through hole is provided with and coordinates with nut rotation prevention portion
Rotation prevention portion in spline set；An end face of spline set is axially convexly equipped with constraint spline set unscrew direction towards locking nut and rotate
Spline set spline boss, spline set spline boss keep out position in circumferential direction, unscrew direction towards locking nut；
The side deviating from connecting rod cap at big end is provided with and the major part spline hole that only protuberance coordinates of spline set；
Big end bearing shell is filled the span of a man's arms outside bent axle, and big end and connecting rod cap are filled the span of a man's arms outside big end bearing shell；Screw rod
The through hole that external thread part sequentially passes through on the through hole of big end, big end lid is threadeded with locking nut, and screw rod can not
Being installed together with big end rotatably, big end and connecting rod cap are installed together by screw rod, locking nut；
Spline set is arranged on outside locking nut, and spline set spline boss inserts in major part spline hole, and locating part is arranged on screw rod
Or on locking nut, spline set is deviated from the side axial limiting of spline set spline protuberance；Nut rotation prevention portion and spline in spline set
Portion's fiting constraint spline set rotates relative to locking screw parent phase, and spline set spline boss is stopped by major part in the direction that unscrews of locking nut
Turn hole keep out constraint spline set rotate relative to big end, connecting rod cap and big end without rotating against, screw rod, locking screw
Mother is non-rotatably installed together with connecting rod cap and big end.
20. 1 kinds are fastenedly connected assembly, including locking nut；It is characterized in that: also include the threaded connector of U-shaped, spline set；
Threaded connector includes the threaded connector body of U-shaped, is equipped with external thread part, external screw thread at the two ends of threaded connector body
The outer warp in portion is less than the outer warp of threaded connector body；The all corresponding described locking nut of the external thread part often held and spline
Set；The periphery of locking nut is provided with the nut rotation prevention portion that circumference is evenly distributed, and shaft core position is provided with the spiral shell coordinated with external thread part
Pit；Being provided only with an axial spline through hole on spline set, the hole wall of spline through hole is provided with and coordinates with nut rotation prevention portion
Spline set in rotation prevention portion；An end face of spline set is axially convexly equipped with constraint spline set and unscrews direction rotation towards locking nut
The spline set spline boss turned, spline set spline boss keep out position in circumferential direction, unscrew direction towards locking nut；
The external thread part at threaded connector two ends is threaded with corresponding locking nut respectively, spline in the spline set of spline set
Portion is arranged on outside the nut rotation prevention portion of locking nut, spline set by axial limiting outside the nut rotation prevention portion of locking nut；Nut
Rotation prevention portion rotates relative to spline set with rotation prevention portion fiting constraint locking nut in spline set.
21. 1 kinds comprise the fastening structure being fastenedly connected assembly as claimed in claim 20, it is characterised in that:
Fastening structure also includes connected piece；Connected piece be provided with two coordinate with described threaded connector logical
Hole, is provided with, on the face of spline set, the spline hole coordinated with spline set spline boss on connected piece；
The external thread part at threaded connector two ends is threadeded through through hole corresponding on connected piece with locking nut respectively, quilt
Two through hole constraint threaded connectors on connector rotate relative to connected piece, and threaded connector body is axially kept out connected
Part side, locking nut is axially kept out connected piece opposite side, threaded connector, locking nut and connected piece and is arranged on one
Rise；
In the spline set of spline set, rotation prevention portion is arranged on outside the nut rotation prevention portion of locking nut and by axial limiting, spline set spline
Boss inserts in connected piece spline hole；Nut rotation prevention portion rotation prevention portion fiting constraint locking nut interior with spline set is relative to spline set
Rotating, spline set spline boss is kept out constraint spline set in the side unscrewing direction towards locking nut by connected piece spline hole
Rotate relative to connected piece；Together with threaded connector is non-rotatably mounted at locking nut, connected piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796027.5A CN106246697A (en) | 2016-08-31 | 2016-08-31 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796027.5A CN106246697A (en) | 2016-08-31 | 2016-08-31 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106246697A true CN106246697A (en) | 2016-12-21 |
Family
ID=58081152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610796027.5A Pending CN106246697A (en) | 2016-08-31 | 2016-08-31 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246697A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435678A (en) * | 2017-08-28 | 2017-12-05 | 上海勘测设计研究院有限公司 | Locking gear and its application method |
| CN107504271A (en) * | 2017-10-10 | 2017-12-22 | 珠海格力电器股份有限公司 | Pipeline fixing piece and dish washer |
| CN107882849A (en) * | 2017-12-15 | 2018-04-06 | 保定华铁电气化供电器材设备有限公司 | A kind of anti-dropping gasket and anchor bolt antisepsis protector |
| CN108626159A (en) * | 2018-06-22 | 2018-10-09 | 广东美的环境电器制造有限公司 | Base plate component of fan, fan and its assembly method |
| CN108826218A (en) * | 2018-05-14 | 2018-11-16 | 安徽卡澜特车灯科技有限公司 | A kind of double optical lens lamp holders |
| CN109026875A (en) * | 2018-08-28 | 2018-12-18 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
| CN109282182A (en) * | 2018-10-19 | 2019-01-29 | 赛尔富电子有限公司 | Anti-rotation position limiting structure and lamps and lanterns |
| CN109538611A (en) * | 2018-12-18 | 2019-03-29 | 宁波信泰机械有限公司 | A kind of insert nut or bolt card clip fasten component |
| CN109723712A (en) * | 2018-12-29 | 2019-05-07 | 天津市盛立达机械设备有限公司 | It is inserted in limiting locking bolt |
| CN110469570A (en) * | 2018-05-11 | 2019-11-19 | 白木工业株式会社 | The fastening structure of automobile-used component |
| CN111237539A (en) * | 2020-01-20 | 2020-06-05 | 重庆川仪调节阀有限公司 | Valve rod and valve plug connecting structure and assembling method |
| CN112271388A (en) * | 2020-10-26 | 2021-01-26 | 力神动力电池系统有限公司 | Two-way locking mechanism of battery pack for electric automobile battery replacement |
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| CN109026875A (en) * | 2018-08-28 | 2018-12-18 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
| CN109282182A (en) * | 2018-10-19 | 2019-01-29 | 赛尔富电子有限公司 | Anti-rotation position limiting structure and lamps and lanterns |
| CN109538611A (en) * | 2018-12-18 | 2019-03-29 | 宁波信泰机械有限公司 | A kind of insert nut or bolt card clip fasten component |
| CN109538611B (en) * | 2018-12-18 | 2024-04-09 | 宁波信泰机械有限公司 | Clamping and fixing assembly for insert nut or bolt buckle |
| CN109723712A (en) * | 2018-12-29 | 2019-05-07 | 天津市盛立达机械设备有限公司 | It is inserted in limiting locking bolt |
| CN111237539A (en) * | 2020-01-20 | 2020-06-05 | 重庆川仪调节阀有限公司 | Valve rod and valve plug connecting structure and assembling method |
| CN112271388A (en) * | 2020-10-26 | 2021-01-26 | 力神动力电池系统有限公司 | Two-way locking mechanism of battery pack for electric automobile battery replacement |
| CN112271388B (en) * | 2020-10-26 | 2023-10-24 | 力神（青岛）新能源有限公司 | Bidirectional locking mechanism for battery pack of electric automobile |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20161221 |