WO2018039949A1 - 一种紧固连接结构、止转结构、紧固连接组件、曲轴连杆机构 - Google Patents

一种紧固连接结构、止转结构、紧固连接组件、曲轴连杆机构 Download PDF

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Publication number
WO2018039949A1
WO2018039949A1 PCT/CN2016/097443 CN2016097443W WO2018039949A1 WO 2018039949 A1 WO2018039949 A1 WO 2018039949A1 CN 2016097443 W CN2016097443 W CN 2016097443W WO 2018039949 A1 WO2018039949 A1 WO 2018039949A1
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Prior art keywords
rotation preventing
rotation
sleeve
screw
hole
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PCT/CN2016/097443
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English (en)
French (fr)
Inventor
杨东佐
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杨东佐
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Publication date
Application filed by 杨东佐 filed Critical 杨东佐
Priority to PCT/CN2016/097443 priority Critical patent/WO2018039949A1/zh
Publication of WO2018039949A1 publication Critical patent/WO2018039949A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt

Definitions

  • the invention relates to a fastening connection technology of a thread pair mechanically coupling two or more objects; in particular, a mechanical static connection of a crankshaft linkage mechanism, a track structure, an aircraft, a ship, a device, an aerospace equipment, Fastening connection structure, anti-rotation structure, fastening of mechanical parts on key parts of aircraft equipment, spacecraft, rockets, engines, nuclear reaction equipment, trains, high-speed rail, railroad tracks, steel structures, steel bridges, automobiles, etc.
  • the connection components and the crankshaft linkage mechanism are particularly harsh in the use environment of such mechanical parts, such as large vibration, high temperature environment, large load, etc., and the connection reliability of the mechanical connection of the thread pair is particularly high.
  • Threaded sub-mechanical static joints between objects have some bolts broken at key parts, safety problems caused by failure of threaded connections and safety accidents, which are often encountered in the world, and are a common problem faced by technicians in the field. Solve the problem that has not been solved. Small bolts, large accidents, and frequent major accidents due to bolt breakage, such as the collapse of the connecting rod bolts of the engine of the automobile; the accident of 1 death and 4 injuries caused by the break of the bolts of Harbin tower crane on April 18, 2009; Taiwan's media reported that the No. 1 reactor of the No. 2 Plant of the Nuclear Power Plant detected 7 anchor bolt breaks and damages that may cause nuclear safety accidents; the guidance of the No.
  • the reliability of the threaded connection is ensured by the self-locking of the friction of the thread pair and the friction between the contact faces of the thread pair.
  • the connecting thread has a certain self-locking property and does not automatically loosen under static load conditions.
  • the friction between the pairs of threads will disappear or decrease instantaneously; at the same time, in the case of high temperature or temperature changes, the material will creep and stress relaxation, and the friction will be reduced. Under multiple actions, the threaded connection is gradually released.
  • the main reason for the failure of the threaded connection is that the thread is loose due to the reduction of the pre-tightening force. Therefore, the essence of the threaded connection is to prevent the thread pair from rotating in the direction of loosening (that is, the direction between the threaded hole and the externally threaded portion). Rotate in the direction of rotation, such as the rotation between the bolt and the nut.
  • the existing mechanical mechanical anti-loosening methods mainly include mechanical anti-loose methods such as a split pin, a stop pad and a string wire rope. Many of the aircraft are now also using the anti-loose method of the series wire rope.
  • the lock nut is provided with a threaded through hole and an internal gear-shaped rotation stop hole communicating therewith, and the minimum hole diameter of the rotation stop hole is larger than the diameter of the threaded through hole.
  • the rotation preventing sleeve is provided with a rotation preventing through hole, and the outer circumference of the rotation preventing sleeve is an outer gear shape, and a rotation preventing strip is arranged on the wall of the rotation preventing through hole, and a rotation preventing groove is matched with the rotation preventing strip on the screw.
  • the outer gear-shaped outer circumference of the anti-rotation sleeve and the gear-shaped hole wall of the lock nut rotation-stop hole cooperate with the constraint lock nut to rotate relative to the rotation sleeve, and the rotation sleeve of the rotation sleeve is inserted into the rotation groove of the screw to restrain the screw relative to the rotation sleeve Rotating, so the screw and the lock nut are mounted non-rotatably.
  • the anti-loose nut connection structure includes connecting parts and Through the screw of the connecting piece, the screw on the screw is fastened to the connecting piece, the outer side of the nut is sleeved with a anti-loose ferrule, and the anti-rotation structure between the anti-rotation ferrule and the connecting piece is provided, and the anti-rotation structure includes a corresponding connector
  • the sinking groove provided by the nut is arranged in the sinking groove after the nut is screwed, and the outer ring of the anti-loose ferrule is provided with a chuck, and the inner side wall of the sinking groove is provided with a card slot for the chuck to be inserted; the height of the anti-loose ferrule is less than Shen
  • the height of the groove, the anti-loose ferrule and the nut and the sink are an interference fit.
  • the anti-loose nut connecting structure of the invention has a anti-rotation ferrule and a anti-rotation structure between the anti-loose ferrule and the connecting member, and the inner ring of the anti-loose ferrule is a regular hexagonal structure matched with the nut, preventing The inner ring of the loose ferrule and the nut cannot rotate relative to each other, and the anti-rotation structure prevents the anti-loose ferrule from rotating relative to the connecting member, thereby preventing the nut from loosening after being fastened.
  • the anti-loose nut connecting structure realizes the prevention of the looseness of the nut, but on the one hand, since the height of the anti-loose ferrule is smaller than the height of the sinking groove, and the anti-loose ferrule is in an interference fit with the nut and the sinking groove, the disassembly prevention When loosening the nut connection structure, the anti-loose and anti-loose ferrule cannot be taken out from the sinking groove, and the anti-loose and anti-loose ferrule cannot be taken out, so that the nut and the screw cannot be separated, so that the use of the threaded pair connection is lost.
  • Patent No. ZL201520399393.8 discloses a self-tightening nut and a bolt fastener.
  • the fastener includes a self-tightening nut body, a self-tightening washer and a common bolt; the self-tightening nut body is in contact with the self-tightening washer The surface is a smooth transition spiral surface; the self-tightening nut body is screwed with the common bolt; the bolt fastener includes a self-tightening bolt, a self-tightening washer and a common nut; the ordinary nut is screwed with the self-tightening bolt.
  • the self-tightening nut and the bolt fastener adopt a self-tightening principle, and a self-tightening structure is arranged on the nut or the bolt to make the self-tightening effect after the locking, so that the nut is no longer displaced or loosened.
  • This kind of self-nut also known as self-tightening nut and never loose nut, and claims that its anti-loose ability exceeds the hardlock nut, has been reported in CCTV. Since this nut is not widely used, its anti-loosening effect cannot be judged.
  • a front-end single-thread spiral rear double-line anchoring screw which mainly comprises a screw, and the screw has a self-tapping thread and a screw tail.
  • the connecting end is provided with a connecting structural member, the connecting structural member is a hexagonal head, the outer hexagon head is provided with a gasket, and the bottom of the gasket is provided with a locking tooth.
  • a screw structure is disclosed, and all the structures described are part of the screw structure. From the point of view of the figure and the words on the outer hexagonal head, it can be understood without any objection.
  • the gasket is a part of the screw, so there is no through-hole which is provided with the hexagonal head on the gasket.
  • the gasket is installed outside the outer hexagonal head, and the gasket and the screw are two separate members. Since the gasket is a part of the screw, during the screwing process of the screw, the anti-loose teeth on the gasket and the gasket also rotate with the screw, so that although the anti-loose teeth are provided on the gasket, the anti-loose teeth are embedded.
  • the connected object is not only embedded in the axially connected object, but in the process of rotation, the axial and circumferential displacements are embedded in the connected object, so that the anti-loose teeth will be connected to the connected object during the rotation of the screw.
  • the surface forms a circumferential groove that is shallower and deeper in the direction in which the screw is screwed.
  • the circumferential groove destroys the appearance of the connected object; on the other hand, the insertion force of the anti-loose tooth and the connected object is greatly reduced, and it can be said that the anti-loose effect of the anti-loose tooth on the screw is very limited; In particular, due to the presence of the embedded teeth, it is difficult for the screws to lock the connected objects. Therefore, the locking teeth of the screw of this structure can not play the role of relaxation, and the screw of this structure has no use value.
  • the present invention overcomes the prior art anti-loose technical solution that the anti-rotation sleeve restricts the rotation of the thread pair to the loosening direction, and it is difficult or impossible to stop the rotation sleeve. Taken out of the first tore hole, resulting in a useless inertia thinking.
  • the technical problem to be solved by the present invention is to provide a rotation stop that does not require a rotation stop member, and does not need to have a rotation stop sleeve on the outer circumference of the rotation preventing sleeve, and a rotation stop on the attachment body and the outer circumference of the rotation prevention sleeve.
  • the hole is used to restrain the rotation of the rotation sleeve relative to the attachment body, the structure is simple, the fastening structure of the rotation sleeve is convenient to install and disassemble, the rotation stop structure, the fastening connection component, and the crankshaft linkage mechanism.
  • a fastening connection structure includes a fastening connection assembly, a base body and an attachment body;
  • the fastening connection assembly includes a screw;
  • the screw includes an external thread portion and a rotation stop abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion;
  • the utility model is provided with a through hole which cooperates with the external thread portion of the screw, and the base body is provided with a hole for engaging with the external thread portion of the screw;
  • the screw passes through the through hole of the auxiliary body and is installed with the hole of the female body;
  • the fastening connection assembly further includes a rotation stop sleeve; an outer circumference of the rotation stop of the screw is provided with a circumferentially evenly arranged, axial screw rotation stop; only one axial rotation stop hole is provided on the rotation sleeve, and the hole of the through hole is stopped
  • the wall is provided with a rotation preventing sleeve inner locking portion matched with the screw rotation preventing portion
  • the screw rotation stop and the rotation stop of the rotation sleeve cooperate with the rotation of the restriction screw relative to the rotation sleeve, and the rotation sleeve of the rotation sleeve is The side facing the screw unscrewing direction is locked by the attachment rotation preventing hole to restrain the rotation of the rotation preventing sleeve relative to the attached body; the screw is non-rotatably mounted with the mother body and the attachment body.
  • a fastening connection structure includes a fastening connection assembly, a base body and an attachment body;
  • the fastening connection assembly includes a screw;
  • the screw includes an external thread portion and a rotation stop abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion;
  • the utility model is provided with a through hole matched with the external thread portion of the screw, and the base body is provided with a hole for engaging with the external thread portion of the screw;
  • the fastening connection assembly further comprises a rotation preventing sleeve and a rotation preventing pad; and the outer circumference of the rotation stop of the screw a circumferentially evenly arranged, axially-rotating screw stop; only one axial anti-rotation through hole is provided in the anti-rotation sleeve, and the hole wall of the anti-rotation through hole is provided with a rotation stop with the screw rotation preventing portion a sleeve rotation preventing portion; a rotation preventing sleeve of
  • the anti-rotation structure comprises a rotation preventing sleeve, wherein the rotation sleeve is annular, and only one axial rotation preventing through hole is arranged on the rotation preventing sleeve, and the circumference of the hole wall of the rotation preventing through hole is provided a uniformly arranged, axially-rotating sleeve inner rotation preventing portion; axially convexly disposed on one end surface of the rotation preventing sleeve to cooperate with the auxiliary rotation preventing hole and/or the rotation preventing pad rotation preventing hole, and the restraining rotation preventing sleeve
  • the rotation preventing rotation boss of the rotation sleeve rotates in a direction of rotation, and the resistance position of the rotation preventing projection of the rotation sleeve is in the circumferential direction and toward the screw loosening direction.
  • the height of the rotation preventing sleeve of the rotation preventing sleeve is larger than the axial length of the rotation preventing portion of the rotation preventing sleeve.
  • the rotation preventing structure further includes a rotation preventing pad; the through hole is provided with a through hole that cooperates with the external thread portion of the screw, and a rotation preventing pad rotation hole that is matched with the rotation preventing protrusion of the rotation preventing sleeve; On the end surface of the rotation preventing pad facing the attachment body, a rotation preventing pad rotation preventing boss which is engaged with the attachment rotation preventing hole is protruded in the axial direction; the height of the rotation preventing sleeve of the rotation preventing sleeve is less than or equal to the thickness of the rotation preventing pad.
  • the rotation preventing structure further includes a rotation preventing pad;
  • the through hole is provided with a through hole that cooperates with the external thread portion of the screw, and a rotation preventing pad rotation hole that is matched with the rotation preventing protrusion of the rotation preventing sleeve;
  • the side of the rotation preventing pad facing away from the rotation preventing sleeve is provided with an embedding portion or sprayed with friction particles;
  • the embedding portion is an embedding protrusion provided on the end surface of the rotation preventing pad or an embedding edge disposed outside the rotation preventing pad;
  • the height of the sleeve rotation preventing boss is less than or equal to the thickness of the rotation preventing pad.
  • the anti-rotation sleeve comprises an annular anti-rotation sleeve body, a central through-hole is arranged at the axial center of the anti-rotation sleeve body, and two or more elastic bodies are axially protruded from the same side of the anti-rotation sleeve body.
  • the end portion of the arm and the elastic arm forms a limiting portion radially inward, and the inner side surface of the limiting portion is provided with a rotation preventing portion inside the rotation preventing sleeve, and the limiting portion is provided with an inner side surface of the rotation preventing portion of the rotation preventing sleeve.
  • Non-closed anti-rotation through hole; the anti-rotation sleeve anti-rotation boss is on the same side as the limiting portion.
  • the anti-rotation sleeve further comprises a resilient arm;
  • the anti-rotation sleeve is provided with a short-circuiting connection with the anti-rotation through-hole, and cooperates with the elastic arm to accommodate the elastic arm and provide a deformation space for the elastic arm deformation a slot, the through hole is a non-closed hole;
  • one end of the elastic arm is connected to a side of the rotation preventing sleeve that faces away from the rotation preventing boss of the rotation sleeve, and the other end is provided with a rotation preventing sleeve of the rotation preventing sleeve a side portion and a radial end of the end portion of the end is provided with a limiting portion, the limiting portion is perpendicular to the axis of the rotation preventing through hole, and the limiting portion radially protrudes the rotation preventing through hole; the elastic arm and the elastic arm The shelter is facing right.
  • the anti-rotation sleeve of the anti-rotation structure is arranged on the anti-rotation sleeve of the anti-rotation sleeve, instead of being disposed on the limiting portion of the elastic arm, the anti-rotation through-hole is not deformed by the external force, and the rotation is stopped. The effect is good.
  • the rotation stop structure further includes a limiting member, and one rotation preventing sleeve corresponds to one limiting member;
  • the limiting member comprises an annular limiting member body, and only one central through hole is arranged at a central position of the limiting member body, the minimum aperture of the central through hole is larger than the maximum aperture of the stopping through hole; and the limiting member body is further included
  • Two or more elastic arms are connected, and a limiting portion parallel to the limiting member body is arranged at an axial end of the elastic arm toward the central through hole axial direction, and the limiting portion radially protrudes the central through hole; two or more limits
  • the minimum inner diameter of the bit portion is smaller than the minimum inner diameter of the stop through hole;
  • the anti-rotation sleeve is provided with a hollow space for engaging with the elastic arm for accommodating the elastic arm and providing a deformation space for the deformation of the elastic arm; the limiting member and the rotation preventing sleeve are mounted together, and the elastic arm and the rotation preventing sleeve are arranged
  • the space of the avoidance space cooperates; the limiting portion of the limiting member radially protrudes from the stopping through hole of the rotation preventing sleeve; in the direction parallel to the body of the limiting member, the maximum deformation amount of the elastic arm is larger than the limiting portion of the limiting member
  • the limiting portion of the limiting member protrudes from the limiting member body, and the limiting member body is mounted on one end surface of the rotation preventing sleeve, and the elastic arm extends axially into the cutout space, and the limiting portion diameter Extend into the through hole.
  • the rotation stop limit component of the structure, the limit member can be a plastic piece, and the limit piece is fixed with the rotation stop sleeve by placing the rotation stop sleeve in the mold of the molded plastic part and forming the limit piece. .
  • the elastic arm includes a first elastic arm connected to the limiting member body, along the end of the first elastic arm a curved elastic arm of a central through hole, a second elastic arm formed vertically along an end of the curved elastic arm, and a limiting portion disposed at an end of the second elastic arm; the first elastic arm and the surface elastic The arm and the second elastic arm form a U-shaped elastic arm, and the U-shaped elastic arm faces the groove.
  • the limit member can be a metal stamping part, and the limit piece and the rotation stop sleeve are fixed together by spot welding, and the cost is low.
  • the rotation stop structure further comprises a limiting member; the limiting member comprises two or more elastic limiting members; the elastic limiting member comprises a horizontal limiting portion, and the vertical limiting portion is bent first The elastic arm is bent along the end of the first elastic arm toward the limiting portion and parallel to the limiting portion, and then bent obliquely upwards away from the limiting portion, and then bent obliquely downward, and then toward the limiting portion.
  • a buckle formed by bending the direction and the parallel limiting portion, and then bending the second elastic arm which is bent downward along the end portion of the buckle, and then paralleling the limiting portion along the end of the second elastic arm a bent portion of the resisting portion;
  • the anti-rotation sleeve is provided with a hollow hole for engaging with the elastic arm for accommodating the elastic arm and providing a deformation space for the deformation of the elastic arm;
  • the limiting portion of the elastic limiting member is directed toward the axial center of the rotation preventing sleeve, and the elastic buckle is passed through the hollow through hole on the rotation preventing sleeve, and is buckled by one side of the elastic limiting member, and one side is resisted
  • the portion of the elastic limiting member and the limiting member are mounted together, and the limiting portion of the elastic limiting member radially protrudes from the hole wall of the rotation preventing through hole of the rotation preventing sleeve, and between the elastic arms of the elastic limiting member The distance from the limiting portion of the elastic limiting member protrudes from the length of the hole wall of the rotation preventing through hole of the rotation preventing sleeve.
  • the anti-rotation limit component of the structure, the elastic limiting member can be a metal stamping part, and the elastic limiting piece is directly fastened on the anti-rotation sleeve to install the elastic limiting piece and the anti-rotation sleeve together, the cost is low, and the elastic limit is
  • the relative rotation sleeve can also be disassembled, and the material cost of the limiting member is greatly reduced.
  • a fastening connection assembly comprising any one of the three to six rotation preventing structures, further comprising a screw; the screw comprises an external thread portion, a rotation preventing abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion; the screw is prevented from rotating
  • the outer circumference of the portion is provided with a circumferentially evenly arranged axial axial rotation preventing portion; the rotation preventing sleeve is mounted outside the rotation preventing abutting portion of the screw; the screw rotation preventing portion and the rotation preventing portion of the rotation preventing sleeve cooperate with the restraining screw relative to the rotation preventing sleeve Rotate.
  • the fastening connection assembly further comprises a limiting member; the card slot is provided on the screw; the limiting member is a snap ring, and the snap ring comprises a non-closed annular snap ring body, in the body of the snap ring
  • the outer circumference is provided with three or more limiting ribs protruding from the main body of the snap ring; the inner circumference of the snap ring body is matched with the outer circumference of the bottom of the slot of the screw; the outer diameter of the limiting rib is larger than the through hole of the rotation preventing sleeve The maximum aperture; the snap ring is mounted in the slot to axially limit the side of the anti-rotation sleeve away from the screw stop projection.
  • the snap ring of the structure does not need to be particularly large, and can limit the stop sleeve, and the limit effect is good.
  • the fastening connection assembly further includes a limiting member; the card slot is provided with a card slot; the snap ring is bent by the wire spring, and includes an end surface of the anti-rotation sleeve away from the rotation preventing sleeve Cooperating non-closed annular limit, by annular limit
  • the two connecting portions of the two ends of the connecting portion are bent in the same direction by the two end portions of the two connecting portions, and the two resisting portions are bent toward the annular limiting portion.
  • the distance between the two resisting portions is greater than or equal to the card.
  • the bottom diameter of the groove is smaller than the maximum outer diameter of the card slot; the two abutting portions of the snap ring are mounted in the card slot and axially limit the side of the rotation preventing sleeve away from the screw rotation convex portion.
  • the snap ring of this structure has low cost, and only needs to open two resisting portions of the snap ring when taking out, and is convenient to take out.
  • the invention relates to a fastening connection assembly comprising a rotation stop structure of any one of the three to twelfth aspects, further comprising a screw and a lock nut;
  • the screw comprises an external thread portion and a rotation preventing abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion;
  • the outer circumference of the anti-rotation abutting portion of the screw is provided with a circumferentially evenly arranged, axial screw rotation preventing portion;
  • An anti-rotation boss for axially protruding with respect to the rotation of the lock nut relative to the base body is axially protruded on one end surface of the lock nut;
  • the external thread portion of the screw is screwed with the lock nut, and the rotation sleeve is mounted outside the rotation preventing abutting portion of the screw; the screw rotation preventing portion and the rotation preventing portion of the rotation preventing sleeve cooperate with the restriction screw to rotate relative to the rotation preventing sleeve.
  • a fastening connection assembly comprising the rotation preventing structure of any one of the seventh to twelfth aspects, further comprising a screw; the screw comprises an external thread portion, a rotation preventing abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion; the rotation of the screw
  • the outer circumference of the resisting portion is provided with a circumferentially evenly arranged, axial screw rotation preventing portion and a limiting portion accommodating space that cooperates with the limiting portion.
  • the surface of the limiting portion accommodating space facing the externally threaded portion is used to resist the limit.
  • the rotation preventing sleeve is installed outside the rotation preventing resisting portion of the screw, and the elastic arm is elastically deformed to insert the limiting portion into the receiving portion receiving space, and is resisted by the resisting surface of the limiting portion receiving space, and the anti-rotating sleeve is away from the outer sleeve.
  • One side of the threaded portion is axially constrained; the screw rotation preventing portion and the rotation preventing portion of the rotation preventing sleeve cooperate with the restriction screw to rotate relative to the rotation preventing sleeve.
  • a fastening structure comprising a three-fourth, four-seventh to twelveth rotation-stopping structure, further comprising a base body, an attachment body, and a fastening connection assembly including a rotation-stopping structure;
  • the fastening connection assembly further comprises a screw;
  • the external thread portion and the rotation preventing abutting portion are arranged, and the rotation preventing abutting portion radially protrudes the external thread portion;
  • the attachment body is provided with a through hole that cooperates with the external thread portion of the screw, and the base body is provided with a hole that cooperates with the external thread portion of the screw
  • the fastening connection assembly further includes a rotation preventing pad;
  • the through hole is provided with a through hole that cooperates with the external thread portion of the screw, and the rotation preventing pad rotation hole that is matched with the rotation preventing protrusion of the rotation preventing sleeve;
  • the rotation preventing sleeve The height of the rotating boss is less than or equal to the thickness
  • the lock nut is further included; an anti-rotation boss for restraining the rotation of the lock nut relative to the base body is axially protruded on one end surface of the lock nut; and the rotation stop pad further includes a nut rotation preventing pad, The rotation preventing hole of the rotation preventing pad on the nut rotation preventing pad cooperates with the rotation preventing boss of the lock nut; the hole on the female body that cooperates with the external thread portion of the screw is a through hole, and the screw passes through the through hole on the rotation preventing pad and the attached body The through hole, the through hole on the mother body, the through hole of the nut rotation preventing pad are connected with the lock nut;
  • An inserting portion is disposed on a side of the nut rotation preventing pad facing the mother body, the hardness of the mother body is smaller than the hardness of the embedded portion of the nut rotation preventing pad, and the embedding portion of the nut rotation preventing pad is embedded in the female body to restrain the nut rotation preventing pad from rotating relative to the mother body;
  • the nut rotation preventing pad is sprayed with friction particles on one side of the mother body, and the friction particles of the nut rotation preventing pad and the mother body generate a sufficient friction force to restrain the nut rotation preventing pad from rotating relative to the mother body; or the nut rotation preventing pad is fixed to the mother body by the fixing glue
  • the upper restraining nut rotation preventing pad rotates relative to the parent body;
  • the rotation preventing boss of the lock nut is inserted into the rotation preventing hole of the nut rotation preventing pad.
  • the restraining locking nut rotates relative to the nut rotation preventing pad; the locking nut is non-rotatably mounted with the mother body.
  • a fastening structure comprising a rotation stop structure of any one of three, four, seven to twelve, a fastening connection structure of the rotation stop structure, further comprising a base body, an attachment body, and a fastening connection assembly including the rotation stop structure;
  • the fastening connection assembly further includes a screw; the screw includes an external thread portion and a rotation preventing abutting portion, and the rotation preventing abutting portion radially protrudes the external thread portion; the base body and the attached body are an integral structure, forming an annular body with a fracture; The two ends of the fracture are respectively provided with the opposite first mounting portion and the second mounting portion; the first mounting portion is provided with a through hole that cooperates with the external thread portion of the screw, and the second mounting portion is provided with the screw a hole corresponding to the through hole in the first mounting portion; the external thread portion of the screw is inserted through the through hole in the first mounting portion and the hole of the second mounting portion; the first mounting portion faces away from the first One side of the second mounting portion is provided with a first mounting portion rotation preventing hole that is clearance-fitted with the rotation preventing sleeve of the rotation preventing sleeve; the rotation preventing sleeve is installed outside the rotation preventing abutting portion of the screw, and the
  • the rotating boss is resisted by the first mounting portion stop hole on the side facing the screw loosening direction Beam rotation stop sleeve opposite to the first rotary mounting portion; and a second screw is non-rotatably mounting portion, a first mounting portion mounted together.
  • a crankshaft linkage mechanism comprises a crankshaft, a connecting rod set and a fastening connection assembly;
  • the connecting rod set comprises a connecting rod body, a connecting rod big head cover and a connecting rod big head bearing bush;
  • the fastening connection assembly comprises a screw;
  • the screw comprises an external thread part, Anti-rotation part, anti-rotation part Radially protruding external thread portion;
  • the connecting rod body comprises a connecting rod big head and a connecting rod small head, the connecting rod has a through hole matched with the external thread portion of the screw;
  • the connecting rod big head cover is provided with the external thread portion of the screw a matching hole;
  • the fastening connection assembly further comprises a rotation preventing sleeve and a limiting member;
  • the outer circumference of the anti-rotation abutting portion of the screw is provided with a circumferentially evenly arranged axial axial rotation stop portion; only one axial anti-rotation through hole is provided on the rotation preventing sleeve, and the hole wall of the anti-rotation through hole is provided a rotation stop portion of the rotation preventing sleeve matched with the screw rotation preventing portion; a rotation preventing sleeve of the rotation preventing sleeve rotating in the direction of the screw unscrewing direction is axially convexly provided on one end surface of the rotation preventing sleeve, and the rotation preventing sleeve
  • the resisting position of the anti-rotation boss is in the circumferential direction and facing the screw unscrewing direction; and the large end of the connecting rod is disposed on the side of the large head of the connecting rod away from the large head cover of the connecting rod;
  • the bearing bush is hug outside the crankshaft, and the connecting rod big head and the connecting rod big head cover are
  • the large rotation stop hole resists the rotation of the support sleeve, and the big end of the connecting rod and the connecting rod have no relative rotation, and the screw is non-rotatably mounted with the big head cover and the connecting rod big head.
  • the rotation preventing sleeve is installed outside the rotation preventing abutting portion of the screw, and the rotation preventing sleeve of the rotation preventing sleeve is inserted into the rotation stop hole of the attachment body or the rotation preventing hole of the gasket, and the rotation preventing projection of the rotation preventing sleeve is in the direction of the screw unscrewing
  • One side of the attached body rotation hole or the gasket rotation preventing hole resists the rotation of the rotation preventing sleeve relative to the attached body;
  • the screw rotation preventing portion and the rotation preventing portion of the rotation preventing sleeve cooperate with the restraining screw to rotate relative to the rotation preventing sleeve; thus the screw is not rotatable
  • the mother and the attached body are fastened together.
  • the screw can not be rotated, the screw will not loosen due to the rotation in the direction of loosening, so that the screw is kept in the initially required locking position, and the locking force of the screw connection of the screw is basically unchanged during use; even if a common screw is used
  • the mother and the attached body are fastened and connected.
  • the locking force of the screw connection of the screw is basically unchanged during use; therefore, the best locking effect is achieved, and the screw connection failure can be effectively avoided.
  • the height of the rotation preventing boss of the rotation sleeve is greater than the axial length of the rotation stop portion of the rotation preventing sleeve, and when the rotation preventing sleeve of the fastening structure is installed outside the rotation preventing and abutting portion of the screw, in the rotation preventing sleeve of the rotation preventing sleeve Before the rotation stop portion is not in contact with the screw rotation stop portion of the screw, the abutment position of the rotation sleeve rotation preventing boss can contact the attachment rotation hole or the gasket rotation stop hole toward the screw loosening direction, thereby inserting the attachment body
  • the stop position of the rotation preventing hole or the rotation stop hole of the rotation preventing sleeve is close to the attachment rotation hole or the gasket rotation prevention hole, or is in contact with the attachment rotation stop hole or the gasket rotation prevention hole.
  • the screw should be loosened and must be rotated in the direction of loosening. Since the resisting position of the anti-rotation boss of the anti-rotation sleeve is close to the anti-rotation hole or the anti-rotation hole of the anti-rotation hole or the contact hole of the anti-rotation hole, the screw is loosened.
  • the direction rotation, the rotation sleeve of the rotation preventing sleeve is resisted by the attachment rotation hole on the side facing the screw loosening direction, so even if the rotation sleeve of the rotation sleeve and the attachment rotation hole are gap-fitted, the rotation sleeve is also It can't be rotated in the direction of loosening or can only be rotated a little in the direction of loosening.
  • the anti-rotation boss of the rotating sleeve can be resisted by the anti-rotation hole.
  • the anti-rotation sleeve can not be rotated and the screw can not be reversed.
  • the loosening direction is loose and the rotation effect is good.
  • the screw rotation preventing portion is evenly arranged in the circumferential direction outside the rotation preventing abutting portion of the screw, so that the screw rotation preventing portion and the rotation preventing portion inside the rotation preventing sleeve can be at least six or more, and the rotation preventing portion of the rotation preventing sleeve is at least six
  • the number of the rotation stop is an integral multiple of the screw rotation stop portion, and the structure of the rotation preventing sleeve and the rotation stop resisting portion of the screw may be a gear shape, a spline shape or a regular polygon, thereby ensuring that the pre-tightening force of the screw connection satisfies the use requirement.
  • the locking effect is good. If the resisting position of the anti-rotation sleeve anti-rotation boss is close to the attachment rotation hole or the gasket rotation prevention hole, the rotation prevention effect is not so good.
  • the fastening connection assembly has a wide application range and is not limited by the hole distance of the hole for mounting the screw on the base body and the attachment body.
  • the fastening structure is more compact and more conformable to the installation and use habits of the common standard fasteners, and can be designed as standard parts.
  • the rotation sleeve is provided with a rotation preventing sleeve of the rotation preventing sleeve, and the auxiliary body is provided with a rotation preventing through hole, and the rotation preventing protrusion of the rotation preventing sleeve cooperates with the auxiliary rotation preventing hole to restrain the rotation of the rotation preventing sleeve
  • the body only needs to be processed or formed on the attached body to form an anti-rotation hole with the anti-rotation sleeve anti-rotation boss.
  • the anti-rotation hole of the attachment body is generally a round hole, and the processing cost is low.
  • the rotation stop is stopped by the rotation preventing washer, and the inserting portion is provided on the side of the rotation preventing washer facing away from the rotation preventing sleeve, and the embedded portion of the rotation preventing washer is embedded in the attachment body to restrain the rotation of the rotation preventing washer relative to the attached body, and does not need to be attached
  • the upper working hole is matched with the rotation preventing sleeve of the rotation preventing sleeve, and the rotation preventing structure for restraining the rotation of the rotating sleeve is not required on the attached body, and the rotation preventing washer can be made into a standard part, thereby greatly reducing the cost.
  • the rotation preventing pad does not need to be separated from the attachment body, thereby ensuring that the insertion portion of the rotation preventing washer is embedded in the attachment body to restrain the rotation of the rotation preventing pad relative to the attachment body.
  • the rotation stop is stopped by the rotation preventing washer, and the gasket rotation preventing boss is arranged on the side of the rotation preventing washer facing away from the rotation preventing sleeve, and the gasket rotation preventing boss is inserted into the attachment rotation preventing hole and the opposite rotation preventing washer is oppositely attached.
  • Rotating, the rotation sleeve and the rotation preventing boss cooperate with the gasket rotation preventing hole to restrain the rotation
  • the sleeve is rotated relative to the attached body, and only the attached body rotation hole matched with the gasket rotation preventing boss is processed or formed on the attachment body, and the attachment rotation hole is generally a round hole, and the processing cost is low.
  • the anti-rotation pad is used to stop the rotation, and the anti-rotation pad is fixed on the attached body to restrain the rotation of the anti-rotation pad relative to the attached body, and it is not necessary to process the hole matched with the anti-rotation sleeve anti-rotation boss on the attached body, There is no need for any anti-rotation structure that restrains the rotation of the rotation sleeve.
  • the anti-rotation gasket can be made into standard parts, thus greatly reducing the cost, and there is no restriction on the material of the attachment body, only the surface of the attachment body is flat, and the cost is special. Low, it will not destroy the surface of the attached body. When the fastening connection assembly is removed, the rotation preventing pad does not need to be separated from the attachment body.
  • the rotation sleeve of the rotation stop sleeve and the rotation stop hole of the attachment body or the rotation stop hole of the gasket cooperate with the rotation of the restraining rotation rotation pad to the opposite body, and it is not necessary to provide a rotation stop outer rotation portion on the outer circumference of the rotation prevention sleeve, and the rotation stop is not required.
  • the rotation preventing hole of the outer rotation preventing sleeve of the outer sleeve of the rotary sleeve is used to restrain the rotation of the rotation preventing sleeve relative to the attachment body; therefore, it is not necessary to process the rotation preventing hole with the rotation preventing sleeve on the attachment body, and it is not required to attach
  • the body is non-rotatably mounted together, and is provided with a rotation stop for the rotation preventing hole of the rotation preventing sleeve outer rotation portion, and it is not necessary to design two or more rotation preventing through holes on the rotation preventing sleeve to restrain the rotation preventing sleeve Rotate.
  • the processing cost is greatly reduced. Relatively rotating the rotating member with the non-rotatable body to restrain the rotation of the rotation preventing sleeve relative to the attachment body, the rotation preventing member is saved, the installation of the rotation preventing member at the installation site is omitted, the installation time cost is saved, and the cost is greatly reduced.
  • the gap between the rotation sleeve and the screw abutting portion is generally a clearance fit, which facilitates the installation and removal of the rotation sleeve. Since the anti-rotation sleeve is not installed in the anti-rotation hole and is completely exposed, the installation of the anti-rotation sleeve is convenient and fast; the disassembly of the anti-rotation sleeve can be easily disassembled without the aid of the disassembly tool, and the disassembly is convenient, fast and reliable.
  • the anti-rotation sleeve is provided with a resilient arm, and a limiting portion is arranged at the end of the elastic arm, and the limiting member is no longer required to limit the anti-rotation sleeve.
  • the rotation stop structure comprises a rotation preventing sleeve and a limiting member, the elastic arm is arranged on the limiting member, and the limiting portion is arranged at the end of the elastic arm; the limiting member and the rotation preventing sleeve are installed together at the factory, and It is made into standard parts, and it is highly efficient in the factory because it can be automated.
  • the rotation preventing sleeve provided with the elastic arm and the rotation preventing structure including the limiting member provided with the elastic arm eliminate the need to install the limiting member at the installation site of the screw, so the installation is quick and the efficiency is high.
  • the lock nut is provided with a rotation preventing boss to restrain the rotation of the lock nut relative to the mother body, and it is not necessary to process the hexagonal hole on the mother body, thereby reducing the cost.
  • the rotation preventing pad further comprises a lock nut rotation preventing pad, the embedded portion of the rotation rotation pad is embedded in the female body, the rotation of the rotation preventing pad relative to the mother body, or the friction particles of the rotation preventing pad and the attached body generate a sufficient friction force to restrain the rotation rotation pad.
  • the relative rotation of the body and the rotation preventing pad are fixed on the attached body by the fixing glue to restrain the rotation of the rotation preventing pad relative to the attached body, and the rotation preventing structure of the restraining lock nut relative to the rotation of the mother body is not required to be processed on the mother body, thereby reducing the cost.
  • the anti-rotation structure of the present invention is equally applicable to the rotation of the lock nut.
  • the mother body and the attached body are a unitary structure, forming a ring body with a fracture.
  • the fastening structure of the mechanism is used for connecting other parts, because the screw does not rotate relative to the first mounting portion and the second mounting portion, even in the The fastening structure is subjected to a large force, or the environment in which the fastening structure is in a severe vibration, and the threaded connection is not broken due to the rotation of the screw in the loosening direction, ensuring that the screw reliably connects the second mounting portion and the first mounting portion. Fasten and connect together.
  • a rotation preventing hole is provided on the rotation preventing sleeve, and a rotation preventing boss which is matched with the rotation preventing hole of the rotation preventing sleeve is provided on the attachment body, which is a simple equivalent replacement of the present invention, and of course also belongs to the protection scope of the present invention.
  • the anti-rotation boss is disposed on the attached body, unless it is an injection molded part, a cast part, etc., and the anti-rotation boss is formed together when the attached body is formed. If the anti-rotation boss is processed, the cost is particularly high, so it is not in this patent. Again.
  • Embodiment 1 is a perspective exploded view of the fastening structure of Embodiment 1.
  • FIG. 2 is a cross-sectional view showing the fastening structure of the embodiment 1 taken along the axial center of the screw.
  • FIG 3 is a cross-sectional view showing the fastening structure of the second embodiment taken along the axial center of the screw.
  • Embodiment 4 is a perspective exploded view of the fastening structure of Embodiment 2.
  • Fig. 5 is a perspective exploded view showing the fastening structure of the third embodiment.
  • Fig. 6 is a cross-sectional view showing the fastening joint structure of the third embodiment taken along the axial center of the screw.
  • Fig. 7 is a perspective view showing the fastening structure of the fourth embodiment.
  • FIG. 8 is a perspective exploded view of the fastening connection assembly of Embodiment 4.
  • Fig. 9 is a perspective view showing the fastening structure of the fifth embodiment.
  • FIG. 10 is a perspective exploded view of the fastening assembly of Embodiment 5.
  • Figure 11 is a cross-sectional view showing the fastening joint structure of the embodiment 6 taken along the axial center of the screw.
  • Figure 12 is a perspective exploded view of the fastening assembly of the embodiment 6.
  • Figure 13 is a perspective exploded view of the fastening assembly of the seventh embodiment.
  • Fig. 14 is a cross-sectional view showing the fastening structure of the seventh embodiment taken along the axial center of the screw.
  • Figure 15 is a perspective exploded view of the fastening assembly of the eighth embodiment.
  • Figure 16 is a cross-sectional view showing the fastening joint structure of the embodiment 8 taken along the axial center of the screw.
  • Figure 17 is a perspective exploded view of the fastening assembly of the ninth embodiment.
  • Figure 18 is a cross-sectional view showing the fastening structure of the embodiment 9 taken along the axial center of the screw.
  • Fig. 19 is a perspective exploded perspective view showing the rotation preventing sleeve and the limiting member of the ninth embodiment.
  • Figure 20 is a perspective view showing the fastening structure of the embodiment 10.
  • Figure 21 is a perspective exploded view showing the fastening structure of the embodiment 10.
  • Figure 22 is a cross-sectional view showing the fastening joint structure of the embodiment 10 taken along the axial center of the screw.
  • Figure 23 is a perspective exploded view showing the fastening structure of the eleventh embodiment.
  • Figure 24 is a perspective exploded view of the fastening assembly of the embodiment 12.
  • Figure 25 is a perspective exploded view of the fastening assembly of the embodiment 13.
  • Figure 26 is a cross-sectional view showing the fastening joint structure of the embodiment 14 taken along the axial center of the screw.
  • Figure 27 is a cross-sectional view showing the fastening joint structure of the fifteenth embodiment of the screw shaft.
  • Figure 28 is a perspective exploded view showing the fastening structure of the fifteenth embodiment.
  • Figure 29 is a cross-sectional view showing the fastening joint structure of the embodiment 16 taken along the axial center of the screw.
  • Figure 30 is a perspective view showing the fastening structure of the embodiment 16.
  • Figure 31 is a perspective view showing the fastening structure of the embodiment 17.
  • Figure 33 is a perspective exploded view of the fastening assembly of the embodiment 18.
  • Figure 34 is a perspective view showing the fastening structure of the embodiment 19.
  • Figure 35 is a cross-sectional view showing the fastening joint structure of the embodiment 19 taken along the axial center of the screw.
  • Figure 36 is a perspective exploded view showing the fastening structure of the embodiment 19.
  • Figure 37 is a perspective exploded view showing the fastening structure of the embodiment 20.
  • Figure 38 is a cross-sectional view, taken along the axial center of the fastening structure of the fastening structure of the embodiment 20.
  • Figure 39 is a cross-sectional, schematic cross-sectional view showing the axial position of the fastening structure of the fastening structure of the embodiment 21.
  • Figure 40 is a perspective exploded view showing the fastening structure of the embodiment 21.
  • Embodiment 41 is a perspective exploded view of the fastening joint assembly of Embodiment 22.
  • Figure 42 is a perspective exploded view of the fastening assembly of Embodiment 23.
  • Figure 43 is a cross-sectional view, taken along the axial center of the screw of the fastening structure of the embodiment 23.
  • Figure 44 is a perspective exploded perspective view showing the fastening structure of the embodiment 24.
  • Figure 45 is a perspective exploded view of the screw and the anti-rotation sleeve of the embodiment 24.
  • Figure 46 is a cross-sectional view showing the axial position of the fastening screw of the fastening structure of the embodiment 24 taken along the axial center.
  • Figure 47 is a perspective exploded view of the fastening joint assembly of Embodiment 25.
  • Figure 48 is a perspective exploded view of the fastening assembly of Embodiment 26.
  • Figure 49 is a cross-sectional view, taken along the axial center of the screw of the fastening structure of the embodiment 26.
  • Figure 50 is a partially enlarged schematic view showing the area A of Figure 49.
  • Figure 51 is a perspective view of the anti-rotation sleeve and the elastic limiting member of Embodiment 27.
  • Figure 52 is a cross-sectional, schematic cross-sectional view showing the axial position of the fastening structure of the fastening structure of the embodiment 27.
  • Figure 53 is a partially enlarged schematic view showing the area A of Figure 52.
  • Figure 54 is a perspective view showing the stopper sleeve of the embodiment 28.
  • Figure 55 is a perspective view showing the stopper sleeve of the embodiment 29.
  • Figure 56 is a perspective exploded view of the crankshaft link mechanism of the embodiment 30.
  • Figure 57 is a cross-sectional view showing the crankshaft link mechanism of the embodiment 30 taken along the axis of the two screws.
  • a fastening connection assembly includes a screw 1, a rotation preventing sleeve 2, and a limiting member, and the limiting member is a resisting nut 3.
  • the screw 1 includes an externally threaded portion 4 which is sequentially arranged, an outer gear-shaped rotation preventing abutting portion 5, a clamping portion 6 which provides a wrench holding position when the screw 1 is attached and detached, and an external thread portion 7.
  • the rotation preventing abutting portion 5 radially protrudes the external thread portion 4 and the nip portion 6, and the nip portion 6 radially protrudes the external thread portion 7.
  • the outer circumference of the rotation preventing abutting portion 5 is provided with a plurality of triangular teeth uniformly arranged in the circumferential direction, and one triangular tooth forms a screw rotation preventing portion 8.
  • the outer circumference of the clamping portion 6 is a regular hexagon.
  • the rotation preventing sleeve 2 has an annular shape, and the axial center position of the rotation preventing sleeve 2 is provided with an axial internal gear-shaped rotation preventing through hole 9 that is clearance-fitted with the rotation preventing abutting portion 5 of the external gear shape, and the rotation preventing through hole 9
  • the wall of the hole is provided with a plurality of triangular grooves uniformly distributed in the circumferential direction.
  • a single triangular groove on the wall of the hole of the through hole 9 forms a rotation preventing sleeve inner rotation portion 10 which cooperates with the screw rotation preventing portion 8.
  • a columnar anti-rotation boss 11 is axially protruded on one end surface of the rotation preventing sleeve 2, and the abutment position of the rotation preventing boss 11 is in the circumferential direction, toward the screw unscrewing direction.
  • the height of the rotation preventing boss 11 is larger than the axial length of the rotation preventing portion 10 in the rotation preventing sleeve.
  • the resisting nut 3 is stepped, and the axial position of the resisting nut 3 is provided with a threaded through hole 12 that engages with the external threaded portion 7 of the screw 1, and communicates with the threaded through hole 12 to avoid the clamping portion 6 of the screw 1. Avoid the hole 13.
  • the fastening connection structure includes the above-described fastening connection assembly, the mother body 14, and the attachment body 15.
  • the attachment body 15 is provided with a through hole 16 that engages with the external thread portion 4 of the screw 1, and a rotation preventing hole 17 that engages with the rotation preventing boss 11 is provided on the side of the attachment body 15 facing away from the base body 14.
  • the female body 14 is provided with a threaded blind hole 18 that is threadedly engaged with the external thread portion 4 of the screw 1.
  • the external thread portion 4 of the screw 1 is sequentially threaded through the through hole 16 in the attachment body 15, and is screwed to the thread blind hole 18 of the female body 14.
  • the end surface of the rotation preventing abutment portion 5 axially abuts the attachment body 15, and the screw 1 will be the mother body. 14 is fastened to the attachment body 15.
  • the rotation preventing sleeve 2 is mounted outside the rotation preventing abutting portion 5 of the screw 1, and the abutting position of the rotation preventing boss 11 is close to the rotation preventing hole 17 of the attachment body 15 or the contact with the rotation preventing hole hole 17, and the screw rotation preventing portion of the triangular tooth 8 is inserted into the rotation preventing sleeve 10 of the rotation sleeve of the corresponding triangular groove, the rotation preventing boss 11 of the rotation preventing sleeve 2 is inserted into the rotation preventing hole 17 of the attachment body 15, and the resisting nut 3 is mounted on the external thread portion of the screw 1.
  • the clamping portion 6 of the screw 1 is placed in the hollow hole 13 , and the resisting nut 3 is axially restrained from the side of the rotation preventing sleeve 2 facing away from the attachment body 15 .
  • the rotation preventing boss 11 is resisted by the rotation preventing hole 17 of the attachment body 15 on the side facing the screw loosening direction, and the screw 1 passes through the rotation preventing through hole 9 of the rotation preventing sleeve 2 to jointly restrain the rotation preventing sleeve 2 with respect to the attached body 15
  • Rotating, the screw rotation preventing portion 8 and the rotation preventing sleeve inner rotation portion 10 cooperate with the rotation preventing sleeve 2 to rotate relative to the screw 1, and the mother body 14 and the attachment body 15 have no relative rotation, so the screw 1 is non-rotatably coupled with the mother body 14 and the attached body. 15 installed together.
  • the resist nut 31 is a hexagonal nut that engages with the male screw portion 33 of the screw 32.
  • the screw 32 includes a male screw portion 34, a rotation preventing abutting portion 35, and a male screw portion 33 which are sequentially arranged.
  • the rotation preventing abutting portion 35 includes a resisting convex ring 36 having a cylindrical outer circumference and a rotation preventing portion 37 having a regular hexagonal outer circumference, and the rotation preventing portion 37 is connected to the external thread portion 33.
  • the six planes of the outer circumference of the rotation stop portion 37 form six screw rotation preventing portions 37 that are circumferentially arranged.
  • the resisting convex ring 36 radially protrudes the external thread portion 34 and the rotation preventing portion 37, and the rotation preventing portion 37 radially protrudes the external thread portion 33.
  • the axial center position of the rotation preventing sleeve 39 is provided with an axial rotation preventing through hole 40 that is clearance-fitted with the rotation preventing portion 37 of the screw 32, and communicates with the rotation preventing through hole 40, and avoids the avoidance of the circular convex ring 36 by the screw 32. Empty hole 38.
  • the hole wall of the through hole 40 is an intersecting structure in which two identical hexagonal holes of the same structure are rotated by 30°, and twelve pointed grooves are formed on the wall of the hole of the through hole 40, and each of the pointed grooves is formed by
  • the two intersecting planes of the regular hexagonal holes are formed, and the two intersecting planes of the pointed recessed grooves form the anti-rotation sleeve inner rotation preventing portion 42 that cooperates with the screw rotation preventing portion 41 of the rotation preventing portion 37.
  • An anti-rotation boss 43 is axially projected on the end face of the anti-rotation sleeve 39 near the avoidance hole 38.
  • the rotation preventing through hole 40 of the rotation preventing sleeve 39 is mounted outside the rotation preventing portion 37 of the screw 32, and the abutting convex ring of the screw 32 is placed in the cutout hole 38 of the rotation preventing sleeve 39.
  • the stopper is a snap ring 51.
  • the screw 52 includes a male screw portion 53, a clamping portion 54, a rotation preventing abutting portion 55, and a cylindrical mounting portion 59 which are sequentially arranged.
  • a plurality of evenly circumferentially arranged trapezoidal teeth are provided on the outer circumference of the rotation preventing abutting portion 55, and one trapezoidal tooth forms a screw rotation preventing portion 56.
  • the outer circumference of the clamping portion 54 is a regular hexagon.
  • the mounting portion 59 is provided with a card slot 60 that engages with the snap ring 51.
  • the clamping portion 54 radially protrudes from the external thread portion 53 and the rotation preventing abutting portion 55, and the rotation preventing abutting portion 55 protrudes from the mounting portion 59 in the radial direction.
  • the fastening connection structure is different from that of the first embodiment in that the snap ring 51 is buckled in the slot 60 of the mounting portion 59 of the screw 52 to axially limit the side of the rotation preventing sleeve 57 away from the attachment 58.
  • the stopper is a snap ring 71.
  • the screw 72 includes a male thread portion 73, a rotation preventing abutment portion 74, a clamping portion 75, and a cylindrical mounting portion 76 which are sequentially arranged.
  • the outer circumference of the rotation preventing abutting portion 74 is provided with a plurality of trapezoidal teeth arranged in a uniform circumferential direction, one trapezoidal tooth forms a screw rotation preventing portion 77, the outer circumference of the clamping portion 75 is a regular hexagon, and the mounting portion 76 is provided with a snap ring 71.
  • the engaging groove 78, the rotation preventing abutting portion 74 radially protrudes the external thread portion 73 and the clamping portion 75, and the clamping portion 75 radially protrudes from the mounting portion 76.
  • the snap ring 71 is formed by bending a metal wire, and includes a non-closed annular limiting portion 81 that cooperates with the end surface of the rotation preventing sleeve 79 facing away from the rotation preventing boss, and is formed by the annular limiting portion 81.
  • the two connecting portions 82 that are bent in the same direction at the two ends of the annular annular limiting portion 81 are respectively bent by the one end of the connecting portion 82 parallel to the annular limiting portion 81 toward the annular limiting portion 81.
  • the parallel resisting portion 83 and the annular gripping portion 84 which are respectively bent outwardly after the end portions of the two resisting portions 83 are bent outward; and the outer periphery of the bottom portion of the latching groove 78 is formed between the two resisting portions 83. Cooperate to avoid space 80.
  • the two resisting portions 83 of the snap ring 71 are mounted in the latching groove 78 of the mounting portion 76 of the screw 72.
  • the annular limiting portion 81 of the snap ring 71 abuts against the end sleeve of the rotation preventing sleeve 79 facing away from the rotation preventing boss. 79 is axially offset from the side of the attached body.
  • the stopper is a snap ring 91.
  • the screw 92 includes a male screw portion 93 and a rotation preventing abutting portion 94 which are sequentially arranged.
  • the rotation preventing abutting portion 94 includes a resisting convex ring 95 having a cylindrical outer circumference and a rotation preventing portion 96 having a regular hexagonal outer circumference, and the abutting convex ring 95 is disposed between the external thread portion 93 and the rotation preventing portion 96.
  • the rotation stop portion 96 is provided with a card groove 97 that engages with the snap ring 91, and six planes of the outer circumference of the rotation stop portion 96 form six screw rotation preventing portions 105 that are circumferentially arranged.
  • the resisting convex ring 95 radially protrudes from the external thread portion 93 and the rotation preventing portion 96.
  • the axial center position of the rotation preventing sleeve 99 is provided with an axial rotation preventing through hole 98 which cooperates with the rotation preventing portion 96 of the screw 92.
  • the hole wall of the rotation preventing through hole 98 is rotated by 30° for two identical hexagonal holes of the same structure.
  • the intersecting structure forms twelve pointed grooves on the wall of the through hole 98, each of which is formed by two intersecting planes of the regular hexagonal holes, and the two intersecting planes of the pointed grooves are formed with the screw 92.
  • the rotation preventing portion 106 of the rotation preventing sleeve 105 that is engaged with the screw rotation preventing portion 105 axially protrudes a rotation preventing boss 100 on one end surface of the rotation preventing sleeve 99.
  • the snap ring 91 includes a non-closed annular snap ring body 101.
  • the outer periphery of the snap ring body 101 is evenly distributed with six radially protruding limiting ribs 102.
  • the limiting rib 102 radially protrudes from the outer circumference of the slot 97 on the screw 92, and the maximum outer diameter of the limiting rib 102 is larger than the maximum diameter of the stopping through hole 98; the inner circumference of the snap ring body 101 and the screw 92
  • the outer circumference of the bottom of the card slot 97 that is turned against the blocking portion 94 is fitted.
  • the rotation preventing sleeve 99 is mounted outside the rotation preventing portion 96 of the screw 92, and the snap ring body 101 of the snap ring 91 is mounted in the locking groove 97 of the rotation preventing portion 96 of the screw 92, and the limiting rib 102 of the snap ring 91 resists rotation.
  • the end face of one side of the sleeve away from the appendage 104 is axially constrained to the side of the anti-rotation sleeve 99 that faces away from the appendage 104.
  • the special pliers tool is used to extend into the two disassembling through holes 103, and then the snap ring 91 is opened outward, and the snap ring 91 can be released from the slot 97 of the screw 92.
  • a fastening connection assembly includes a screw 111 and a rotation preventing sleeve 112, and no limiting member is required.
  • the screw 111 includes an external thread portion 113, an outer gear-shaped rotation preventing abutting portion 114, and a chamfered cylindrical limit abutting portion 115.
  • the rotation preventing abutting portion 114 is disposed between the external thread portion 113 and the limiting abutting portion 115, and the limiting abutting portion 115 radially protrudes from the rotation preventing abutting portion 114, and the rotation preventing abutting portion 114 radially protrudes the external thread portion 113.
  • the outer circumference of the rotation preventing abutting portion 114 is an outer gear shape, and the outer circumference of the rotation preventing abutting portion 114 is provided with a plurality of trapezoidal teeth arranged in a uniform circumferential direction, and one trapezoidal tooth forms a screw rotation preventing portion 116.
  • the anti-rotation sleeve 112 includes an annular anti-rotation sleeve body 127, and a central through-hole 117 is disposed at the axial center of the anti-rotation sleeve body 127, and three elastic arms 118 are evenly distributed on the wall of the central through-hole 117.
  • Each of the resilient arms 118 includes a horizontal projection 119 formed radially inward from the bore wall of the central through bore 117, a U-shaped resilient arm 120 axially upwardly and then radially inwardly and axially downwardly formed;
  • the end portion of the 120 is formed with the stopper portion 121 radially inwardly, and the inner surface of the three stopper portions 121 is provided with a plurality of uniform circumferences of the internal gear shape partially engaged with the rotation-stopping portion 114 of the external gear shape of the screw 111.
  • a single triangular groove on the inner side surface of the limiting portion 121 forms a rotation preventing sleeve inner rotation preventing portion 122 that cooperates with the screw rotation preventing portion 116, and a triangular groove on the inner side surface of the three limiting portions 121
  • a non-closed through-stop hole 123 is formed.
  • a rotation preventing projection 124 is axially projected from the end surface of the rotation preventing sleeve 112 away from the U-shaped elastic arm 120.
  • the outer circumference of the rotation preventing abutting portion 114 and the end surface resisting portion 115 are formed toward the end surface of the rotation preventing abutting portion 114 to form a limiting portion accommodation space for accommodating the limiting portion 121.
  • the fastening connection structure is different from that of the first embodiment in that the U-shaped elastic arm 120 of the rotation preventing sleeve 112 is placed outside the rotation stop portion of the screw 111 by elastic deformation and the rotation preventing projection 124 of the rotation preventing sleeve 112 is inserted into the attachment body 125.
  • the stopper portion 121 of the rotation preventing sleeve 112 is axially restrained by the end resisting portion 115 of the screw 111 toward the end surface of the rotation preventing abutting portion 114 against the side of the rotation preventing sleeve 112 facing away from the attachment body 125.
  • the rotation preventing sleeve 141 includes an annular rotation preventing sleeve body 142, and a central through hole 143 is provided at the axial center of the rotation preventing sleeve body 142.
  • An outer convex ring 144 and an inner convex ring 145 of the same height are disposed on the outer circumference and the inner circumference of the sleeve body 142.
  • the inner convex ring 145 is provided with three limiting portions 146 along the top surface of the inner convex ring 145 in the radial direction.
  • a radial straight groove 147 is formed along the circumferential side of each of the limiting portions 146 and centered on the center of the center through hole 143, and the inner annular ring 145 is cut and the radial sleeve 142 of the rotation preventing sleeve body 142 is partially cut, and The inner convex ring 145 and the rotation preventing sleeve body 142 of the limiting portion 146 form a resilient arm 148, and the limiting portion 146, the inner convex ring 145 and the rotation preventing sleeve body 142 connected to the limiting portion 146 form an elastic anti-rotation abutting portion. 149.
  • a plurality of evenly circumferentially arranged triangular grooves of a shape of an internal gear that partially engages with the anti-rotation abutting portion 151 of the outer gear shape of the screw 150 are provided, and the limiting portion 146 is provided.
  • the single trapezoidal groove on the inner side surface forms a rotation preventing sleeve inner rotation preventing portion 153 which cooperates with the screw rotation preventing portion 152, and the triangular groove on the inner side surface of the three limiting portions 146 forms a non-closed rotation preventing through hole.
  • a rotation preventing boss 154 is axially projected between a side of the rotation preventing sleeve body 142 facing the inner convex ring 145, the inner convex ring 145 and the outer convex ring 144.
  • the outer circumference of the rotation preventing abutting portion 151 and the limiting abutting portion 157 form a stopper receiving space for accommodating the stopper portion 146 toward the end surface of the rotation preventing abutting portion 151.
  • the elastic arm 148 of the rotation preventing sleeve 141 is placed outside the rotation preventing abutting portion 151 of the screw 150 by elastic deformation, and the rotation preventing boss 154 of the rotation preventing sleeve 141 is inserted into the rotation preventing hole 156 of the attachment body 155, and the rotation preventing sleeve 141 is
  • the limiting portion 146 is axially restrained by the end resisting portion 157 of the screw 150 toward the end surface of the rotation preventing abutting portion 151 against the side of the rotation preventing sleeve 141 facing away from the attachment body 155.
  • the screw 171 includes a male screw portion 172, a resisting portion 173, and a rotation preventing portion 174 in this order, and the rotation preventing portion 174 radially protrudes against the blocking portion 173.
  • the abutting portion 173 and the rotation preventing portion 174 form a rotation preventing abutting portion of the screw.
  • the rotation sleeve 175 includes an annular rotation sleeve body 176.
  • the center of the rotation sleeve body 176 is provided with a central through hole 180.
  • the outer circumference and the inner circumference of the rotation sleeve body 176 extend in the same direction and have the same height.
  • the outer convex ring 177 and the inner convex ring 178 are provided with three limiting portions 179 on the inner convex ring 178 along the top surface of the inner convex ring 178 in the radial direction, along the circumferential sides of each limiting portion 179
  • the center of the hole 180 is provided with a radial straight groove 181 which cuts the inner convex ring 178 and partially cuts the rotation preventing sleeve body 176, and the inner convex ring 178 and the rotation preventing sleeve body 176 which are connected to the limiting portion 179 are formed.
  • a plurality of evenly circumferentially arranged trapezoidal grooves of an inner gear shape that cooperate with the outer gear-shaped rotation preventing portion 174 of the screw 171 are provided on the inner side surface of the inner convex ring 178 where the stopper portion 179 is not provided, and a single trapezoidal groove is formed.
  • a rotation preventing sleeve inner rotation preventing portion 184 that cooperates with the screw rotation preventing portion 183, and a triangular groove on the inner side surface of the three limiting portions 179 form a non-closed rotation preventing through hole 185.
  • a rotation preventing boss 186 is axially projected between a side of the rotation preventing sleeve body 176 facing the inner convex ring 178, the inner convex ring 178 and the outer convex ring 177.
  • the outer circumference and the rotation stop portion 174 of the abutting portion 173 form a stopper accommodation space for accommodating the stopper portion 179 toward the end surface of the abutment portion 173.
  • the anti-rotation sleeve inner rotation preventing portion 184 of the rotation preventing sleeve 175 is disposed outside the rotation preventing portion 174 of the screw 171, and the elastic arm 182 of the rotation preventing sleeve 175 is placed outside the resisting portion 173 of the screw 171 by elastic deformation and the rotation preventing sleeve 175 is
  • the rotation preventing boss 186 is inserted into the rotation preventing hole 188 of the attachment body 187, and the stopper portion 179 of the rotation preventing sleeve 175 is resisted by the rotation preventing portion 174 of the screw 171 toward the end surface of the resisting portion 173, and the rotation preventing sleeve 175 is away from the attached body 187.
  • the screw 201 includes a male screw portion 202, a resisting portion 203, an outer gear-shaped rotation preventing portion 204, and a hexagonal clamping portion 205, and a resisting portion 203.
  • the external thread portion 202 is radially protruded, and the rotation preventing portion 204 radially protrudes from the blocking portion 203 and the clamping portion 205.
  • the abutting portion 203 and the rotation preventing portion 204 form the rotation preventing abutting portion 206, and the outer periphery of the abutting portion 203 and the surface of the rotation preventing portion 204 facing the male screw portion 202 form the stopper receiving space 219.
  • the limiting member is a plastic member, and includes a ring-shaped limiting member body 207.
  • the outer peripheral shape of the limiting member body 207 is similar to the outer shape of the rotation preventing sleeve 208, and the inner diameter of the limiting member body 207 is slightly larger than the screw 201.
  • Three recesses 220 are formed in the central through hole 218 of the limiting body 207, and three elastic arms 209 are formed on the bottom surface of each of the recesses 220 in the axial direction and then axially on the same side.
  • a limiting portion 210 parallel to the limiting member body 207 is formed in the axial direction along the end of each of the elastic arms 209, and the limiting portion 210 radially protrudes from the hole wall of the central through hole 218.
  • Six limiting posts 211 are protruded from the same end surface of the limiting body 207, and a resisting ring is arranged at the end of the limiting post 211.
  • the limiting post 211 and the limiting portion 210 are placed on the same side of the limiting body 207.
  • the rotation preventing sleeve 208 is a metal piece, and the hollow wall 213 of the elastic arm 209 of the three airtight limiting members is evenly distributed in the circumferential direction of the hole wall of the rotation preventing through hole 212 of the rotation preventing sleeve 208, and the rotation preventing sleeve 208 is provided with six
  • a circumferentially distributed axial mounting hole 214 that cooperates with the limiting post 211 of the limiting member is provided with three cutouts 213 for removing the limiting member on the outer circumference of the rotation preventing sleeve 208.
  • the minimum inner diameter of the three limiting portions 210 of the limiting member is smaller than the minimum inner diameter of the through-stopping hole 212.
  • the rotation preventing sleeve 208 is placed in the injection mold of the forming limit member, and the limiting member is injection molded, so that the limiting post 211 of the limiting member passes through the mounting hole 214 of the rotation preventing sleeve 208 and passes through the limiting column.
  • the retaining ring of the 211 fixes the limiting member on the rotation preventing sleeve 208, and the elastic arm 209 is disposed in the cutout groove 213 of the rotation preventing sleeve 208, and the limiting portion 210 radially protrudes the rotation preventing through hole 212.
  • the rotation preventing sleeve 208 is mounted together with the limiting member outside the rotation preventing portion 204 of the screw 201, and the rotation preventing portion 217 of the rotation preventing sleeve 208 is disposed outside the screw rotation preventing portion 216 of the screw 201, and the limit of the limiting member is limited.
  • the seat portion 210 is elastically deformed by the elastic arm 209 and protrudes into the limiting portion accommodating space 219, and is resisted by the rotation preventing portion 204 toward the end surface of the resisting portion 203, and axially limits the side of the rotation preventing sleeve 208 away from the attachment body 215. .
  • the fastening connection assembly further includes an annular rotation preventing pad 241.
  • the shape of the appendage 242 and the parent body 243 is a torus, and the outer circumference of the appendage 242 is the same as the outer circumference of the parent body 243.
  • a plurality of through holes 244 are uniformly distributed in the circumferential direction of the attachment body 242, and the center of the through hole 244 is distributed on the same circumference coaxial with the axis of the torus.
  • the female body 243 is provided with a threaded blind hole 245 which is in one-to-one correspondence with the through hole 244 of the attachment body 242.
  • the outer circumference of the rotation preventing pad 241 is the same as the outer circumference shape of the attachment body 242, and the rotation preventing pad 241 is provided with a through hole 244 which is in one-to-one correspondence with the through hole 244 of the attachment body 242 and which cooperates with the external thread portion 247 of the screw 246.
  • Each of the through holes 244 of the pad 241 is provided with a gasket stop through hole 244 which is in clearance with the rotation preventing boss 249 of the rotation preventing sleeve 248.
  • the screw 246 is threaded through the corresponding washer stop through hole 244, the corresponding through hole 244 of the attachment 242, and the corresponding threaded blind hole 245 on the female body 243.
  • the screw 246 mounts the rotation preventing pad 241, the attachment body 242, and the mother body 243 together.
  • the rotation preventing boss 249 of the rotation preventing bush 241 faces the gasket rotation preventing through hole 244 of the rotation preventing pad 241, since the diameter of the gasket rotation preventing through hole 244 is larger than the diameter of the rotation preventing boss 249
  • a fine adjustment space is provided so that the rotation preventing sleeve inner rotation portion 251 of the rotation preventing sleeve 248 and the screw rotation preventing portion 252 of the corresponding screw 246 can face each other, thereby mounting the rotation preventing sleeve 248 together with the limiting member on the screw 246.
  • the anti-rotation sleeve inner rotation preventing portion 251 of the rotation preventing sleeve 248 is disposed outside the screw rotation preventing portion 252 of the screw 246, and the elastic buckle 253 of the limiting member is biased toward the end of the rotation preventing portion 254 by elastic deformation.
  • the end surface of the portion 250 is axially restrained from the side of the rotation preventing sleeve 248 away from the attachment body 242.
  • the rotation preventing projection 249 of the rotation preventing sleeve 248 extends into the gasket rotation preventing through hole 244 to restrain the rotation preventing sleeve 248 from the gasket.
  • Rotating, two or more screws 246 restrain the rotation of the rotation preventing pad 241 relative to the attachment body 242, and the parent body 243 and the attachment body 242 are not relatively rotated, so that the screw 246 is non-rotatably mounted with the mother body 243, the attachment body 242 and the rotation preventing pad 241. together.
  • the fastening connection assembly further includes a rotation preventing pad 261.
  • the parent body 262 is an L-shaped member that transitions in a circular arc, and includes a straight portion 263, an arc portion 264 that is bent at 90° toward one side along one end of the straight portion 263, and a straight portion 265 that connects the other end of the arc portion 264.
  • a plurality of threaded blind holes 266 are distributed along the shape of the parent body 262 on the parent body 262.
  • the attachment body 267 has the same outer peripheral shape as the parent body 262, and the attachment body 267 is provided with a through hole 268 which is in one-to-one correspondence with the thread blind hole 266 of the parent body 262.
  • the outer circumference of the rotation preventing pad 261 is the same as the outer circumference shape of the attachment body 267, and the rotation preventing pad 261 is provided with a through hole 269 corresponding to the through hole 268 of the attachment body 267, and the outer side of each of the through hole 269 of the rotation preventing pad 261 is provided.
  • a gasket stop through hole 271 is provided in a clearance fit with the rotation preventing boss of the rotation preventing sleeve 270.
  • the outer circumference of the rotation preventing abutting portion 281 has a spline shape, and the outer circumference forms five projections, and each of the projections forms a screw rotation preventing portion 282.
  • the hole wall of the through hole 283 is a spline-shaped groove that fits with the spline-shaped outer circumference of the rotation preventing abutment portion 281, and a single groove on the hole wall of the rotation preventing through hole 283 is formed to cooperate with the screw rotation preventing portion 282.
  • the rotation preventing portion 284 is stopped.
  • the outer circumference of the rotation preventing abutting portion 291 is provided with a plurality of trapezoidal teeth which are uniformly arranged in the circumferential direction, and one trapezoidal tooth forms a screw rotation preventing portion 292.
  • the hole wall of the through hole 293 is provided with a plurality of trapezoidal grooves uniformly distributed in the circumferential direction, and the single trapezoidal groove on the wall of the hole of the through hole 293 forms a rotation stop in the rotation sleeve of the screw rotation preventing portion 292 Department 294.
  • the fastening connection structure includes a fastening connection assembly, a mother body of the integral structure, and an attachment.
  • the base body and the attached body form a ring-shaped body 301 having a fracture; and the first mounting portion 302 and the second mounting portion 303 facing each other are provided at opposite ends of the fracture of the annular body 301.
  • a through hole 305 that engages with the screw 304 is provided on the first mounting portion 302.
  • a screw hole 307 that cooperates with the screw 304 and corresponds to the through hole 305 in the first mounting portion 302 is provided on the second mounting portion 303.
  • the external thread portion 306 of the screw 304 is threadedly connected to the threaded hole 307 of the second mounting portion 303 through the through hole 305 on the first mounting portion 302, and the screw 304 fastens the first mounting portion 302 and the second mounting portion 303 to each other. together.
  • the fastening joint assembly further includes a lock nut 321 .
  • the outer circumference of the lock nut 321 includes a positive hexagonal clamping portion 322, a conical abutting portion 323, and an axial anti-rotation boss 324 disposed on the end surface of the resisting portion 323.
  • the axial position of the locking nut 321 is provided with a screw
  • the male threaded portion 326 of the 325 engages with a threaded through hole 327.
  • a circular rotation stop hole 332 that is in clearance engagement with the rotation preventing boss 324 of the lock nut 321 is provided.
  • the rotation preventing boss 324 of the lock nut 321 is inserted into the circular rotation preventing hole 332 of the female body 328.
  • the locking nut 321 is non-rotatably mounted on the female body 328, and the external thread portion 326 of the screw 325 sequentially passes through the attachment body 329.
  • the hole 333 and the through hole 334 of the base 328 are screwed to the threaded through hole 327 of the lock nut 321 , and the end surface of the anti-rotation abutting portion 323 axially abuts the attached body 329 , and the lock nut 321 axially resists the base 328 , the screw 325
  • the base body 328 and the attachment body 329 are fastened together with the lock nut 321 .
  • a fastening connection assembly includes a screw 351 and a rotation preventing sleeve 352.
  • the screw 351 includes a male screw portion 353 which is sequentially arranged, and a rotation preventing abutting portion 354 having an outer gear shape, and the rotation preventing abutting portion 354 radially protrudes the male screw portion 353.
  • the outer circumference of the anti-rotation abutting portion 354 is provided with a plurality of triangular teeth of a rounded transition (not shown) which are uniformly circumferentially arranged, toothed and smoothly transitioned (not shown), and a triangular tooth forms a screw rotation portion 355.
  • the end face of the rotation preventing abutting portion 354 facing away from the external thread portion 353 is provided with an inner hexagonal screwdriver hole 356 for mounting and dismounting the screw 351.
  • the rotation preventing sleeve 352 includes an annular rotation preventing sleeve body 357.
  • the axial center position of the rotation preventing sleeve body 357 is provided with an axial rotation preventing through hole 358 which cooperates with the rotation preventing abutting portion 354, and the hole wall of the rotation preventing through hole 358
  • An inner gear-shaped hole that is clearance-fitted with the outer gear shape of the anti-rotation abutting portion 354 is provided with a plurality of uniformly circumferentially arranged triangular grooves on the wall of the anti-rotation through hole 358, and the perforated through hole 358 is formed on the wall of the hole
  • the single triangular groove forms a stop sleeve inner stop 359 that cooperates with the screw stop 355.
  • a cylindrical anti-rotation boss 360 is axially projected on one end surface of the cuff body 357, and the abutment position of the anti-rotation boss 360 is in the circumferential direction, toward
  • the fastening connection structure includes the above-described fastening connection assembly, the mother body 361, and the attachment body 362.
  • the attachment body 362 is provided with a through hole 363 which cooperates with the external thread portion 353 of the screw 351, and a rotation preventing hole 364 which is in a clearance fit with the rotation preventing boss 360 is provided on the side of the attachment body 362 away from the base body 361.
  • the female body 361 is provided with a threaded blind hole 365 that is threadedly engaged with the external thread portion 353 of the screw 351.
  • the external thread portion 353 of the screw 351 sequentially passes through the through hole 363 of the attachment body 362, and is screwed to the thread blind hole 365 of the female body 361.
  • the end surface of the rotation preventing abutting portion 354 axially abuts the attachment body 362, and the screw 351 will be the mother body.
  • the 361 is fastened to the attachment body 362.
  • the rotation preventing sleeve 352 is mounted outside the rotation preventing abutting portion 354 of the screw 351, and the abutting position of the rotation preventing boss 360 is close to the rotation preventing hole 364 of the attachment body 362 or the contact with the rotation preventing circular hole 364, and the screw rotation end portion of the triangular tooth 355 is inserted into the anti-rotation sleeve inner rotation preventing portion 359 of the corresponding triangular groove, and the rotation preventing boss 360 of the rotation preventing sleeve 352 is inserted into the rotation preventing hole 364 of the attachment body 362, at the screw rotation preventing portion 355 and the rotation preventing sleeve A fixing glue 366 is filled between the gaps of the inner rotation preventing portion 359, and the fixing rubber 366 protrudes from the end surface of the locking sleeve 352 away from the attachment body 362, and the fixing rubber 366 fixes the rotation preventing sleeve 352 with the rotation preventing resisting portion 354 of the screw 351.
  • the side of the stop sleeve 352 facing away from the attachment 362 is axially constrained.
  • the rotation preventing boss 360 is resisted by the rotation preventing hole 364 of the attachment body 362 on the side facing the screw loosening direction, and the screw 351 passes through the rotation preventing through hole 358 of the rotation preventing sleeve 352 to jointly restrain the rotation preventing sleeve 352 relative to the attached body 362.
  • three circular arc-shaped glue grooves 383 are provided on the wall of the hole of the rotation preventing through hole 382 of the rotation preventing sleeve 381.
  • 383 is filled with a fixing glue 386 between the screw rotation preventing portion 384 adjacent to the glue groove 383 and the 385 gap of the rotation preventing portion in the rotation preventing sleeve.
  • the end surface of the screw 391 against the external thread portion 393 is chamfered, and the attachment area of the fixing rubber 394 is increased, thereby increasing the fixing of the fixing rubber 394. force.
  • the screwdriver hole 395 is a cross-shaped hole.
  • the fastening joint assembly further includes the rotation preventing pad 500.
  • the screw 501 includes a male screw portion 502, a light rod portion 503, and a rotation preventing abutting portion 504 which are sequentially arranged.
  • the rotation preventing abutting portion 504 radially protrudes from the polished rod portion 503.
  • the anti-rotation abutting portion 504 is provided with a card slot 506 that cooperates with the snap ring 505.
  • the pivot center of the rotation preventing pad 500 is provided with a circular center through hole 507 which is in clearance with the external thread portion 502 of the screw 501.
  • the end surface of the rotation preventing pad 500 is provided with a clearance fit with the rotation preventing boss 509 of the rotation preventing sleeve 508.
  • the shim rounds the through hole 510.
  • a rotation preventing pad boss 511 is axially projected on the outer peripheral end surface of the circular center through hole 507.
  • the minimum outer diameter of the anti-rotation pad 500 is greater than the maximum outer diameter of the anti-rotation sleeve 508.
  • the attachment body 512 is provided with a through hole 513 which cooperates with the external thread portion 502 of the screw 501, and a rotation preventing hole 515 which cooperates with the rotation preventing pad boss 511 is provided on the side of the attachment body 512 away from the base body 514.
  • the rotation preventing pad boss 511 of the rotation preventing pad 500 is inserted into the rotation preventing hole 515, and the circular center through hole 507 of the rotation preventing pad 500 faces the through hole 513 on the attachment body 512.
  • the external thread portion 502 of the screw 501 sequentially passes through the circular center through hole 507 of the rotation preventing pad 500, and the through hole 513 of the attachment body 512 is screwed to the thread blind hole 516 of the female body 514, and the rotation preventing abutting portion 504 of the screw 501 is provided.
  • the end face axially resists the rotation preventing pad 500, and the rotation preventing pad boss 511 of the rotation preventing pad 500 is inserted into the rotation preventing hole 515 of the attachment body 512 to restrain the rotation of the rotation preventing pad 500 relative to the attached body 512, and the screw 501 is to be attached to the female body 514.
  • the body 512 and the anti-rotation pad 500 are fastened together.
  • the rotation preventing sleeve 508 is mounted outside the rotation preventing abutting portion 504 of the screw 501, and the rotation preventing boss 509 of the rotation preventing sleeve 508 is inserted into the gasket rounding through hole 510 of the rotation preventing pad 500 to restrain the rotation preventing sleeve 508 from the rotation preventing pad 500 rotations.
  • a fastening connection assembly includes a screw 661, a rotation preventing sleeve 662, and a rotation preventing pad 663.
  • the screw 661 includes a male screw portion 664 which is sequentially arranged, and a rotation preventing abutting portion 665 of an outer gear shape, and the rotation preventing abutting portion 665 radially protrudes the male screw portion 664.
  • the outer circumference of the anti-rotation abutting portion 665 is provided with a plurality of triangular teeth of a rounded transition (not shown) which are uniformly circumferentially arranged, toothed and smoothly transitioned (not shown), and a triangular tooth forms a screw rotation portion 666.
  • An end face of the rotation preventing abutting portion 665 facing away from the external thread portion 664 is provided with an inner hexagonal screwdriver hole 667 for mounting and dismounting the screw 661.
  • the rotation preventing sleeve 662 includes an annular rotation preventing sleeve body 668.
  • the axial center position of the rotation preventing sleeve body 668 is provided with an axial rotation preventing through hole 669 that cooperates with the rotation preventing abutting portion 665, and one of the rotation preventing sleeve body 668
  • a columnar rotation preventing boss 670 is axially protruded from the end surface, and the abutting position of the rotation preventing boss 670 is in the circumferential direction and toward the screw unscrewing direction.
  • the hole wall of the through hole 669 is an inner gear shape hole that is matched with the outer gear shape of the rotation stop abutment portion 665, and three circular arc-shaped glues are circumferentially uniformly distributed on the hole wall of the rotation stop through hole 669.
  • the groove 671 is provided with a plurality of uniformly circumferentially arranged triangular grooves on the wall of the hole where the through hole 669 is not provided with the glue groove 671.
  • the single triangular groove on the hole wall of the stop through hole 669 forms a rotation stop with the screw.
  • the portion 666 cooperates with the rotation preventing sleeve inner portion 672.
  • the center of the rotation preventing pad 663 is provided with a circular center through hole 673 which is in clearance with the external thread portion 664 of the screw 661.
  • the end surface of the rotation preventing pad 663 is provided with a pad which is in clearance with the rotation preventing boss 670 of the rotation preventing sleeve 662.
  • the sheet end stop through hole 674 is coated with a plurality of friction-increasing friction bumps 675 on one end surface of the rotation preventing pad 663.
  • the fastening connection structure includes the above-described fastening connection assembly, the base 676, and the attachment 677.
  • the attachment body 677 is provided with a through hole 678 that cooperates with the external thread portion 664 of the screw 661.
  • the hardness of the attachment body 677 is smaller than the hardness of the friction projection 675 on the rotation preventing pad 663.
  • the female body 676 is provided with a threaded blind hole 679 that is threadedly engaged with the external thread portion 664 of the screw 661.
  • the external thread portion 664 of the screw 661 sequentially passes through the center through hole 673 of the rotation preventing pad 663, and the through hole 678 on the attached body 677 is screwed with the thread blind hole 679 on the female body 676.
  • the screw 661 is screwed in during the process of stopping the rotation pad 663.
  • the friction viscous 675 is embedded in the appendage 677, and generates a large frictional force on the surface of the appendage 677 to restrict the rotation of the anti-rotation pad 663 relative to the appendage 677.
  • the screw 661 fastens the connection between the parent body 676 and the appendage 677 and the anti-rotation pad 663. Together.
  • the rotation preventing sleeve 662 is installed outside the rotation preventing abutting portion 665 of the screw 661, and the rotation preventing boss 670 of the rotation preventing sleeve 662 is inserted into the gasket rounding through hole 674, since the diameter of the gasket rounding through hole 674 is larger than
  • the diameter of the rotation preventing boss 670 provides a fine adjustment space so that the rotation preventing sleeve inner portion 672 of the rotation preventing sleeve 662 and the screw rotation preventing portion 666 of the screw 661 can face each other, thereby mounting the rotation preventing sleeve body 668 at
  • the screw rotation stop portion 666 of the triangular tooth 661 is inserted into the rotation stop portion 672 of the corresponding triangular groove, and the screw rotation portion 666 adjacent to the glue groove 671 is 666.
  • the fixing glue 680 is filled between the gaps of the rotation preventing sleeves 672, and the fixing rubber 680 fixes the rotation preventing sleeve 662 and the rotation preventing abutting portion 665 of the screw 661, so that the rotation preventing sleeve 662 faces away from the attached body 677.
  • the rotation preventing boss 670 is resisted by the gasket rounding through hole 674 on the side facing the screw loosening direction, and the screw 661 passes through the center through hole 673 of the rotation preventing pad 663 to jointly restrain the rotation preventing sleeve 2 from being opposite to the rotation preventing sleeve 662.
  • the rotation preventing pad 663 rotates, and the friction convex 675 of the rotation preventing pad 663 is embedded in the attachment body 677 to restrain the rotation of the rotation preventing pad 663 relative to the attached body 677, and the parent body 676 and the attachment body 677 are not rotated relative, so the screw 661 is non-rotatably coupled with the female body 676.
  • the attached body 677 and the anti-rotation pad 663 are mounted together.
  • the screw 691 includes a male screw portion 692, an outer gear-shaped rotation preventing abutting portion 702, and a chamfered cylindrical limiting abutting portion 694.
  • the anti-rotation sleeve 695 includes an annular anti-rotation sleeve body 696.
  • the central through-hole 697 is disposed at the axial center of the anti-rotation sleeve body 696, and three anti-rotation portions 698 are evenly distributed on the wall of the central through-hole 697.
  • Each of the abutting rotation preventing portions 698 includes a horizontal convex portion 699 formed radially inward from the hole wall of the central through hole 697, a U-shaped elastic arm 700 axially upwardly and then radially inwardly and axially downwardly formed, and a U-shaped
  • the abutting portion 701 formed by the end portion of the elastic arm 700 radially inwardly is provided with a plurality of uniformities of the inner gear shape partially engaged with the anti-rotation abutting portion 702 of the outer gear shape of the screw 691 on the inner side surface of the three resisting portions 701
  • a circumferentially arranged triangular groove, a single triangular groove on the inner side surface of the abutting portion 701 forms a rotation preventing sleeve inner rotation preventing portion 704 that cooperates with the screw rotation preventing portion 703, and a triangular groove groove on the inner side surface of the three resisting portions 701
  • the groove wall encloses a non-
  • the portion of the rotation preventing boss 705 of the rotation preventing sleeve 695 is inserted into the gasket rounding through hole 706, and the U-shaped elastic arm 700 of the rotation preventing sleeve 695 is placed outside the rotation preventing resisting portion 702 of the screw 691 by elastic deformation and is stopped.
  • the anti-rotation boss 705 of the sleeve 695 continues to be inserted into the shim rounding through hole 706, and the resisting portion 701 of the anti-rotation sleeve 695 is resisted by the limiting abutting portion 694 of the screw 691 toward the end surface of the appendage 707 against the anti-rotation sleeve 695
  • One side of the attachment body 707 is axially constrained.
  • the rotation preventing boss 705 of the rotation preventing sleeve 695 extends into the gasket rounding through hole 706 to restrain the rotation of the rotation preventing sleeve 695 with respect to the gasket, and the friction convex 709 of the rotation preventing cushion 708 is embedded
  • the restraining pad 708 in the body 707 rotates relative to the appendage 707, and the parent body 710 and the appendage 707 are relatively rotatable, so the screw 691 is non-rotatably mounted with the parent body 710, the appendage 707 and the anti-rotation pad 708.
  • the rotation preventing sleeve 695 is not required to be fixed, and the limiting member is not required to axially limit the rotation preventing sleeve 695, and the resisting portion 701 on the rotation preventing sleeve 695 is engaged with the limiting resisting portion 694 of the screw 691, and is used. During the process, it can be ensured that the rotation preventing sleeve 695 is not released from the screw 691, thereby ensuring that the screw 691 does not come loose with the mother body 710 and the attachment body 707.
  • the anti-rotation pad 721 is provided with five evenly distributed spacer rotation preventing through holes 722, and each of the spacer rotation preventing holes 722 serves as the axis of the rotation preventing pad 721.
  • the heart is set at a distance of 15° from the center of the circle.
  • the U-shaped elastic arm 724 of the rotation preventing sleeve 723 is placed outside the rotation preventing abutting portion 726 of the screw 725 by elastic deformation, and the rotation preventing boss of the rotation preventing sleeve 723 is inserted into one of the gasket rotation preventing through holes 722, and the rotation preventing sleeve 723
  • the anti-rotation boss and the shim stop through hole 722 cooperate with the restraining rotation sleeve 723 to rotate relative to the rotation preventing pad 721.
  • a plurality of washer stop through holes 722 are provided to facilitate adjusting the mounting angle of the rotation preventing sleeve 723 relative to the rotation preventing pad 721.
  • the screw rotation preventing portion 726 of the screw 725 and the rotation preventing sleeve are more easily arranged.
  • the anti-rotation sleeve inner rotation portion 726 of the 723 is opposite to facilitate the installation of the rotation preventing sleeve 723 outside the screw 725.
  • the rotation preventing boss 742 described on the rotation preventing sleeve 741 is a lath convex protruding from the outer periphery of the rotation preventing sleeve 741 away from the U-shaped elastic arm 743.
  • the inner side of the axis of the rotation preventing boss 742 facing the rotation preventing sleeve 741 is a plane for stopping rotation.
  • the anti-rotation pad 745 is a chamfered square, and the four outer sides are gap-fitted with the anti-rotation boss 742, which is a linear vertical cutting surface, and the outer side surface of the rotation preventing pad 745 reaches the center hole 747 of the rotation preventing pad 745.
  • the minimum distance is slightly smaller than the minimum distance of the rotation preventing boss 742 toward the inner side of the axis of the rotation preventing sleeve 741.
  • the U-shaped elastic arm 743 of the rotation preventing sleeve 741 is elastically deformed so that the abutting portion is disposed outside the rotation preventing abutting portion 746 of the screw 748, and the inner side surface of the rotation preventing boss 742 of the rotation preventing sleeve 741 is matched with the outer surface of the rotation preventing pad 745.
  • the rotation preventing boss 742 of the rotation preventing sleeve 741 is rotated by the outer side surface of the rotation preventing pad 745 against the rotation preventing sleeve 741 with respect to the rotation preventing pad 745.
  • the fastening joint assembly further includes a nut rotation preventing pad 791.
  • the lock nut 792 has a stepped shape, and includes a positive hexagonal clamping portion 793 and a positioning portion 794 protruding from the end surface of the clamping portion 793 and a rotation preventing boss 795.
  • the locking nut 792 is axially disposed with the screw 796.
  • the external thread portion 797 is fitted with a threaded through hole 798.
  • the positioning portion 794 is disposed at the axial center position of the clamping portion 793, and the rotation preventing boss 795 is disposed at the outer circumference of the positioning portion 794.
  • the nut rotation preventing pad 791 is provided with a circular center through hole 799 which is matched with the outer peripheral clearance of the positioning portion 794 of the lock nut 792.
  • the end surface of the nut rotation preventing pad 791 is provided with a clearance fit with the rotation preventing boss 795 of the nut.
  • the turn nut has a circular through hole 800. Both end faces of the nut rotation preventing pad 791 are smooth faces, and there are no friction particles or embedding projections for increasing friction.
  • the screw 796 includes an external thread portion 797, a polished rod portion 801, a rotation preventing abutting portion 802, and a clamping portion 824.
  • the rotation preventing abutting portion 802 includes a rotation preventing portion 803 and a cylindrical abutting portion that is connected to the light rod portion 801 and is emptied of the air. 804, the resisting portion 804 radially protrudes from the light rod portion 801, and the rotation preventing portion 803 radially protrudes against the blocking portion 804 and the clamping portion 824.
  • the rotation sleeve 805 includes an annular rotation sleeve body 806.
  • the center of the rotation sleeve body 806 is provided with a central through hole 807, and the same circumference is extended along the outer circumference and the inner circumference of the rotation sleeve body 806.
  • the outer convex ring 808 and the inner convex ring 809 have three resisting portions 810 projecting radially on the inner convex ring 809 along the top surface of the inner convex ring 809, along the circumferential sides of each resisting portion 810, with a central through hole
  • the center of the 807 is provided with a radial straight groove 812 which cuts the inner convex ring 809 and partially cuts the rotation preventing sleeve body 806, and the inner convex ring 809 and the rotation preventing sleeve body 806 connected to the resisting portion 810 form a resilient arm. 811.
  • a plurality of evenly circumferentially arranged triangular grooves of an inner gear shape partially engaged with the anti-rotation abutting portion 802 of the external gear shape of the screw 796 are provided, and a single triangular groove on the inner side of the inner convex ring 809 is provided.
  • a rotation preventing sleeve inner rotation preventing portion 814 is formed to cooperate with the screw rotation preventing portion 813, and the groove wall of the triangular groove on the inner side surface of the inner convex ring 809 is enclosed to form a non-closed rotation preventing through hole 815.
  • a rotation preventing boss 816 is axially projected between a side of the rotation preventing sleeve body 806 facing the inner convex ring 809, the inner convex ring 809 and the outer convex ring 808.
  • the center of the rotation preventing pad 817 is provided with a circular center through hole 818 which is in clearance with the external thread portion 797 of the screw 796.
  • the end surface of the rotation preventing pad 817 is provided with a pad which is in clearance with the rotation preventing boss 816 of the rotation preventing sleeve 805.
  • the sheet circle stops the through hole 819. Both end faces of the rotation preventing pad 817 are smooth faces, and there are no friction particles or embedded protrusions for increasing friction.
  • a glue is applied to one end surface of the nut rotation preventing pad 791, and the positioning portion 794 of the lock nut 792 extends from the uncoated end surface of the nut rotation preventing pad 791 into the circular center through hole 799 of the nut rotation preventing pad 791, and stops rotating.
  • the boss 795 extends into the torsion nut circular through hole 800 of the nut rotation preventing pad 791, and the nut rotation preventing pad 791 is fitted over the lock nut 792.
  • the end surface of the rotation preventing pad 817 is coated with glue, and the external thread portion 797 of the screw 796 passes through the end surface of the rotation preventing pad 817 which is not coated with the glue, and sequentially passes through the circular center through hole 818 of the rotation preventing pad 817 and the attached body 820.
  • the through hole 821 and the through hole 823 of the base 822 are screwed with the lock nut 792; the screw 796 and the lock nut 792 have the nut stop pad 791, the base 822 and the attached body 820,
  • the rotation pads 817 are fastened together.
  • the rotation pad 817 is bonded to the surface of the appendage 820, and a large adhesive force is generated on the surface of the appendage 820.
  • the rotation of the anti-rotation pad 817 is opposite to the appendage 820.
  • the nut rotation pad 791 and the parent body are rotated.
  • the surface of the 822 is bonded together and has a large adhesive force with the surface of the mother 822.
  • the nut rotation preventing pad 791 is rotated relative to the mother body 822, and the rotation preventing boss 795 extends into the nut rotation preventing pad 791.
  • the tightening nut 792 rotates relative to the nut rotation preventing pad 791, and the lock nut 792, the nut rotation preventing pad 791, and the rotation preventing pad 817 are non-rotatable with respect to the parent body 822 and the attachment body 820.
  • the rotation preventing sleeve 805 is placed outside the rotation preventing portion 803 of the screw 796, the elastic arm 811 of the rotation preventing sleeve 805 is placed outside the polished rod portion 801 of the screw 796 by elastic deformation, and the rotation preventing projection 816 of the rotation preventing sleeve 805 is inserted into the rotation preventing pad.
  • the abutting portion 810 of the rotation preventing sleeve 805 is blocked by the rotation end portion 803 of the screw 796 toward the end surface of the attachment body 820 to the axial direction of the side of the rotation preventing sleeve 805 away from the attachment body 820. Bit.
  • the rotation preventing pad 1050 is a rectangle having outer arcs on both sides.
  • the outer circumference of the nut rotation preventing pad 1051 includes two circular arc faces 1052 that are symmetric about the central axis, and two parallel planes 1053 that connect the two arcuate faces.
  • three square-shaped escape holes 1062 are uniformly distributed along the outer circumference of the through-stop hole 1061, and three holding grooves are provided on the outer circumference of the rotation preventing sleeve 1063. 1064.
  • the through hole 1061 is a closed inner gear hole.
  • the limiting member 1065 includes an annular stopper body 1066.
  • the center of the limiting member body 1066 is provided with a central through hole 1067.
  • the minimum diameter of the central through hole 1067 is larger than the maximum diameter of the through hole 1061.
  • Three grooves 1068 are uniformly distributed in the circumferential direction of the hole wall of the central through hole 1067, and the end faces of the vertical stopper body 1066 and the corresponding side of each groove 1068 are provided with the first elasticity flush with the bottom surface of each groove 1068.
  • the arm 1069 is an arc-shaped elastic arm 1070 bent along the axial center of the central through hole 1067 along the end of the first elastic arm 1069, and the second elastic arm 1071 is formed vertically along the end of the curved elastic arm 1070.
  • the end of the second elastic arm 1071 is horizontally bent toward the central through hole 1067 to form a limiting portion 1073.
  • the first elastic arm 1069 and the second elastic arm 1071 are line-symmetric with respect to the axis of the curved elastic arm 1070.
  • the first elastic arm 1069, the curved elastic arm 1070, and the second elastic arm 1071 form a U-shaped elastic arm 1072.
  • the limiting portion 1073 is in the same plane as the limiting member body 1066.
  • the outer diameter of the stopper body 1066 is smaller than the outer diameter of the rotation preventing sleeve 1063.
  • the U-shaped elastic arm 1072 is engaged with the escape through hole 1062.
  • the axis position relationship of the rotation preventing through hole 1061 of the rotation preventing sleeve 1063 corresponds to the axial positional relationship of the center through hole 1067 of the limiting member 1065, and the three U-shaped elastic arms 1072 on the limiting member 1065 are respectively mounted on the rotation preventing sleeve 1063.
  • the end surface of the stopper body 1066 is welded to the end surface of the rotation preventing sleeve 1063.
  • the limiting portion 1073 of the limiting member 1065 radially protrudes from the rotation preventing through hole 1061 of the rotation preventing sleeve 1063.
  • the distance between the first elastic arm 1069 and the second elastic arm 1071 of the limiting member 1065 is greater than the length of the limiting wall of the limiting portion 1073 of the limiting member 1065 protruding from the rotation preventing through hole 1061 of the rotation preventing sleeve 1063 to provide Deformation space.
  • the rotation preventing sleeve 1063 is mounted together with the stopper 1065 outside the rotation preventing portion 1075 of the screw 1074, and the rotation preventing boss (not shown) of the rotation preventing sleeve 1063 is inserted into the rotation preventing hole (not shown) of the attachment body 1077.
  • the U-shaped elastic arm 1072 of the limiting member 1065 is elastically deformed to insert the limiting portion 1073 into the receiving space formed by the stopping portion 1075 and the resisting portion 1076, and is blocked by the locking portion 1075 toward the resisting portion 1076.
  • the end face resists and axially limits the side of the anti-rotation sleeve 1063 away from the attachment 1077.
  • the limiting member includes three elastic limiting members 1091 having the same structure.
  • the elastic limiting member 1091 is formed by bending a long strip of metal.
  • the elastic limiting member 1091 includes a horizontal limiting portion 1092.
  • the first elastic arm 1093 which is bent by the vertical limiting portion 1092 is horizontally bent toward the limiting portion 1092 along the end of the first elastic arm 1093.
  • the buckle 1094 which is bent obliquely upward in the reverse direction of the position 1092, and then bent downward in the reverse direction, and then bent horizontally in the direction of the limiting portion 1092, is further vertically downward along the end of the buckle 1094.
  • the bent second elastic arm 1095 is further disposed along the resisting portion 1096 which is horizontally bent away from the end of the limiting portion 1092 at the end of the second elastic arm 1095.
  • the resisting portion 1096 and the limiting portion 1092 are located on the same plane.
  • the two horizontal portions 1097 of the buckle 1094 are located on the same plane.
  • the distance between the limiting portion 1092 and the horizontal portion 1097 of the corresponding buckle 1094 is slightly greater than the thickness of the cuff sleeve 1098.
  • the limiting portion 1092 of the elastic limiting member 1091 is directed toward the axial center of the rotation preventing sleeve 1098, and the buckle 1094 is passed through the hollow through hole 1099 of the rotation preventing sleeve 1098 to mount the elastic limiting member 1091 and the rotation preventing sleeve 1098.
  • the limiting portion 1092 of the elastic limiting member 1091 radially protrudes from the hole wall of the rotation preventing through hole of the rotation preventing sleeve 1098.
  • the distance between the two elastic arms of the elastic limiting member 1091 is greater than that of the elastic limiting member 1091.
  • the limiting portion 1092 protrudes the length of the hole wall of the rotation preventing through hole of the rotation preventing sleeve 1098 to provide a deformation space.
  • the other two elastic limiting members 1091 and the anti-rotation sleeve 1098 are mounted together in the same manner.
  • the rotation preventing sleeve 1098 is mounted together with the three elastic limiting members 1091 mounted together outside the rotation preventing portion 1101 of the screw 1100, and the rotation preventing boss (not shown) of the rotation preventing sleeve 1098 is inserted into the rotation of the attachment body 1102.
  • the buckle 1094 and the first elastic arm 1093 of the elastic limiting member 1091 are elastically deformed to insert the limiting portion 1092 into the limiting portion 1092 formed by the rotation preventing portion 1101 and the resisting portion 1103.
  • the inner and the rotation stop portion 1101 is abutted against the end surface of the abutting portion 1103, and is axially restrained from the side of the rotation preventing sleeve 1098 facing away from the attachment 1102.
  • three or more padding protrusions 1244 are provided on the side of the resisting portion 1242 of each elastic limiting member 1241 facing away from the buckle 1243, and the limiting portion 1245 and the blocking portion are formed.
  • the sections 1242 are on the same plane.
  • the padding protrusion 1244 allows the stopper portion 1245 to be clearance-fitted with the attachment body (not shown) and the rotation preventing sleeve (not shown), and the rotation stop stopper assembly is attached to the rotation preventing abutment portion of the screw (not shown).
  • the limiting portion 1245 is facilitated to move between the rotation preventing sleeve and the attachment body.
  • the distance between the buckle 1243 and the resisting portion 1242 is equal to the thickness of the rotation preventing sleeve, and is gradually reduced from the top end of the buckle 1243 toward the direction of the limiting member.
  • the elastic limiting member 1241 of the structure, the second elastic arm The 1247 is tightly engaged with the through hole of the anti-rotation sleeve.
  • the noise can be greatly reduced, and the rotation stop limit component is installed outside the rotation stop resisting portion 1242 of the screw; the first elastic arm 1246 is matched with the air escape through hole, and the rotation stop limit component is mounted on the screw During the upper process, when the first elastic arm 1246 and the buckle 1243 are elastically deformed, the first elastic arm 1246 can move freely in the through hole, so that the limiting portion 1245 can easily protrude into the limiting portion receiving space.
  • the two ends of the curved elastic arm 1261 are gradually reduced toward the both sides of the limiting member.
  • the limiting member of the structure, the first elastic arm 1262, and the first A half-arc elastic arm 1261 that is in contact with a resilient arm 1262 is tightly fitted with a hollow through hole (not shown) of the anti-rotation sleeve (not shown), and a half-elastic elasticity that is in contact with the second elastic arm 1263
  • the arm 1261 and the second elastic arm 1263 are gap-fitted with the air-proof through hole, so that when the curved elastic arm 1261 and the second elastic arm 1263 are not elastically deformed, the limiting member does not displace relative to the rotation preventing sleeve, and the fastening connection is fastened.
  • the structure is in a severely vibrating environment, the noise can be greatly reduced, and the rotation stop limit assembly is mounted outside the anti-rotation abutment portion (not shown) of the screw (not shown); the rotation stop limit assembly is mounted on the screw During the upper process, when the curved elastic arm 1261 and the second elastic arm 1263 are elastically deformed, the half curved elastic arm 1261 and the second elastic arm 1263 are elastically movable in the hollow through hole, so that the limiting portion is more easily inserted. The limit portion is accommodated in the space.
  • the crankshaft link mechanism includes a fastening connection assembly, a crankshaft 1281, and a link set.
  • the fastening connection assembly differs from the second embodiment in that it also includes an outer right hexagonal lock nut 1282.
  • the link set includes a link body 1283, a link head cover 1284, and a link big head bush 1285.
  • the link body 1283 includes a link head 1286 and a link head 1287.
  • the connecting rod head 1286 is provided with a through hole 1290 that cooperates with the external thread portion 1289 of the screw 1288.
  • the connecting rod head cover 1284 is provided with a through hole 1291 that cooperates with the external thread portion 1289 of the screw 1288.
  • a circular large head stop hole 1294 that engages with the rotation preventing boss 1293 of the rotation preventing sleeve 1292 is provided on a side of the connecting rod head 1286 that faces away from the connecting rod head cover 1284.
  • the connecting rod big head bushing 1285 is hug outside the crankshaft 1281, and the connecting rod big head 1286 and the connecting rod big head cover 1284 are hugged outside the connecting rod big head bushing 1285; the external threaded portion 1289 of the screw 1288 passes through the through hole 1290 of the connecting rod big head 1286 in turn,
  • the through hole 1291 of the rod head cover 1284 is screwed with the lock nut 1282, and a plane of the outer circumference of the lock nut 1282 is resisted by a side wall of the connecting rod big head cover 1284 to restrain the lock nut 1282 from rotating relative to the connecting rod head cover 1284.
  • the screw 1288 and the lock nut 1282 securely connect the connecting rod head 1286 and the connecting rod head cover 1284 together.
  • the rotation preventing sleeve 1292 is mounted outside the rotation preventing resisting portion 1295 of the screw 1288, and the abutting position of the rotation preventing boss 1293 of the rotation preventing sleeve 1292 is close to or in contact with the large head rotation preventing hole 1294, and the rotation preventing boss 1293 of the rotation preventing sleeve 1292 is inserted.
  • the resisting nut 1296 is mounted on the externally threaded portion 1289 of the screw 1288, and the resisting nut 1296 axially limits the side of the anti-rotation sleeve 1292 away from the connecting rod head 1286.
  • the rotation preventing sleeve 1293 of the rotation preventing sleeve 1293 is rotated by the large head rotation hole 1294 in the unscrewing direction of the screw 1288 against the constraint rotation sleeve 1292 with respect to the connecting rod head 1286, and the screw rotation preventing portion 1297 is matched with the rotation preventing portion 1298 of the rotation preventing sleeve.
  • the restraining rotation sleeve 1292 is rotated relative to the screw 1288, and the connecting rod head cover 1284 and the connecting rod head 1286 are not relatively rotated, so the screw 1288 is non-rotatably mounted with the connecting rod head cover 1284 and the connecting rod head 1286.
  • the rotation preventing sleeve of the rotation preventing sleeve can be two or more, and the attachment body is provided with an auxiliary rotation preventing hole which is matched with the rotation preventing projection boss of the rotation preventing sleeve;
  • the body stop hole can also be an integral multiple of the rotation sleeve of the rotation preventing sleeve; according to an embodiment of the present invention, those skilled in the art can realize the invention without any creative labor, and therefore will not be described in the specific embodiment.

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Abstract

一种紧固连接结构,包括紧固连接组件、母体(14)、附体(15);紧固连接组件包括螺杆(1)、止转套(2);在止转套(2)的一个端面上轴向凸设有约束止转套(2)朝螺杆旋松方向旋转的止转套止转凸台(11);螺杆(1)将母体(14)和附体(15)紧固连接在一起;止转套(2)安装在螺杆(1)的止转抵挡部(5)外;止转套止转凸台(11)插入附体止转孔(17)内,止转套止转凸台(11)在朝向螺杆旋松方向的一侧被附体止转孔(17)抵挡、螺杆(1)穿过止转通孔(9)共同约束止转套(2)相对附体(15)旋转;螺杆止转部(8)与止转套(2)内止转部(10)配合约束止转抵挡部(5)相对止转套(2)旋转。优点是不需要止转件,也不需要在附体上加工止转孔,止转套的安装取出快捷、方便、可靠,螺杆不会反转松脱。

Description

一种紧固连接结构、止转结构、紧固连接组件、曲轴连杆机构 技术领域:
本发明涉及一种螺纹副机械静联接两个以上的物体的紧固连接技术;特别是涉及一种通过螺纹副机械静连接曲轴连杆机构、轨道结构、飞机、船舶、设备、航空航天设备、航母、飞船、火箭、发动机、核反应设备、火车、高铁、铁轨、钢结构建筑、钢结构桥梁、汽车等等机械设备上的关键部位上的机械零件的紧固连接结构、止转结构、紧固连接组件、曲轴连杆机构,这些机械零件的使用环境特别恶劣如震动大、高温环境、载荷大等,且对螺纹副机械静连接的连接可靠性要求特别高。
背景技术
物体间的螺纹副机械静联接出现一些关键部位连接的螺栓断裂、螺纹连接的失效引起的安全问题和安全事故,经常碰到,是全球面临的通病,也是本领域的技术人员不断研究改进急待解决还没有解决的问题。小螺栓、大事故,经常因螺栓断裂发生重大事故,如汽车的发动机的连杆螺栓断裂造成捣缸事故;2009年4月18日发生的哈尔滨塔吊螺栓断裂造成的1死4伤的事故;据台湾媒体报道的核二厂一号机反应炉检出7支锚定螺栓断裂、毁损可能引起核安全的事故;2012年6月29日16时45分发生的、5号座舱支撑系统的中导柱螺栓发生疲劳断裂、造成深圳东部华侨城“太空迷航”娱乐项目发生6人死亡、10人受伤的重大安全事故;作为高端车辆的代表厂家,因无法解决螺丝断裂的技术问题,导致宝马发动机因螺丝断裂瞬间失去动力熄火事件导致召回23万辆车(宝马(中国)汽车贸易有限公司、华晨宝马汽车有限公司决定自2014年6月18日起,召回23万辆车),制造厂家受到巨大经济损失和商誉损失,更严重的是会造成车主的生命财产安全。虽然在很多情况下,特别是在振动状态下,经常需要对已经锁紧的紧固连接件定期检修加固,防止螺纹副朝旋松方向旋转松动甚至是松脱带来的安全事故,但全世界每年因为螺纹连接失效导致的一系列安全事故非常多,例子不胜枚举。
螺纹连接的可靠性是靠螺纹副的摩擦产生自锁以及螺纹副的接触面间的摩擦来保证。一般来说,连接螺纹具有一定的自锁性,在静载荷条件下并不会自动松脱。但是,由于连接的工作条件不可避免地会存在冲击、振动、变载荷作用。在这些工况条件下,螺纹副之间的摩擦力会出现瞬时消失或减小;同时在高温或温度变化比较大的场合,材料会发生蠕变和应力松弛,也会使摩擦力减小。在多次作用下,就会造成螺纹连接的逐渐松脱。
螺纹连接的失效,主要原因是由于预紧力减少导致螺纹松脱,因此螺纹连接防松的本质,就是防止螺纹副的朝旋松方向旋转(也就是内螺纹孔与外螺纹部之间的朝旋松方向旋转),如螺栓与螺母间的朝旋松方向旋转。
现有的机械机械防松方法主要包括利用开口销、止动垫片及串钢丝绳等机械防松方法。现在飞机上很多还采用串联钢丝绳的防松方法。
为了防止螺纹连接松脱,人们一直在不懈努力。
专利号为US1755807、申请日为1929年4月6日、公开日为1930年4月22日的美国专利中,公开了一种防松的螺杆螺母结构,包括螺杆、锁紧螺母、止转套。锁紧螺母内设有螺纹通孔和与其连通的内齿轮形的止转孔,止转孔的最小孔径大于螺纹通孔的孔径。止转套设有止转通孔,止转套外周为外齿轮形,止转通孔孔壁上设有止转条,在螺杆上设有与止转条配合的止转槽。止转套的外齿轮形外周与锁紧螺母止转孔内齿轮型孔壁配合约束锁紧螺母相对止转套旋转,止转套的止转套插入螺杆的止转槽约束螺杆相对止转套旋转,因此螺杆与锁紧螺母不可转动地安装在一起。该专利中,由于止转套完全容置在锁紧螺母的止转孔中,止转套很难从锁紧螺母的止转孔中取出;而且在螺杆、螺母的使用过程中,由于止转套、螺杆和螺母生锈、灰尘进入止转套与螺杆和螺母间、止转套与螺杆和螺母的相互渗透等会造成止转套与螺杆螺母间产生很大的咬合力,从而造成止转套无法从螺杆与螺母间取出。如果止转套很难或无法从螺杆与螺母间取出,就很难或无法将螺母和螺杆分离,因而却失去了使用螺纹副连接就是为了能够很方便地将螺杆和螺母分离的最基本用途,因而这种螺杆和螺母结构是没有多大的使用价值。
专利号为ZL201510198765.5、申请公布号为CN 104819197A、申请日为2015年4月24日、公布日为2015年8月6日的发明专利中,一种防松动螺母连接结构,包括连接件及穿过连接件的螺杆,螺杆上旋合螺母将连接件紧固,螺母外侧套接一防松套圈,防松套圈与连接件间设有防旋转结构,防旋转结构包括连接件上对应螺母设置的沉槽,螺母旋合后底部设于沉槽内,防松套圈外圈设有卡头,沉槽内侧壁设有供卡头卡入的卡槽;防松套圈高度小于沉 槽的高度,防松套圈与螺母和沉槽之间为过盈配合。该发明的防松动螺母连接结构,由于增加了一个防松套圈,且防松套圈与连接件间设有防旋转结构,防松套圈内圈为与螺母配合的正六边形结构,防松套圈内圈与螺母间不能相对旋转,同时防旋转结构防止防松套圈与连接件相对旋转,因而可以防止螺母紧固后松动。这种防松动螺母连接结构,虽然实现了防止螺母的松动,但一方面由于防松套圈高度小于沉槽的高度、防松套圈与螺母和沉槽之间为过盈配合,在拆卸防松动螺母连接结构时,防松防松套圈是无法从沉槽内取出,无法取出防松防松套圈,就无法将螺母和螺杆分离,因而却失去了使用螺纹副连接就是为了能够很方便地将螺杆和螺母分离的最基本用途,,因而这种结构是没有任何意义的;另一方面,沉槽内侧壁设有供卡头卡入的卡槽,这种卡槽结构无法机械加工出来,如果不是事先与被连接件一起成型,则需要用电火花等工艺才能加工出来,因而使用成本特别高;还有,如果不对螺杆止转,螺杆相对锁紧螺母还是会转动,只对螺母止转也是没有任何现实意义。上述种种原因,会使本领域的技术人员认为该发明的技术方案无任何使用价值,大大阻碍了本领域的技术人员改进该专利的技术方案的积极性。
专利号为ZL97112246.6、公开日为97112246.6的发明专利中,公开了一种防松螺母,包括工具安装部及与其同轴向上突出设置的环形突出部,它们中间有贯通的螺纹孔。这种防松螺母,就是HardLock螺母,号称世界上唯一的绝不松动的螺母,是哈德洛克工业株式会社的社长若林克彦用了近20年的时间,通过不断技术改进而研究出来的技术成果,现在高铁上应用比较多。高铁运营时,高速行驶的列车和铁轨不断接触,形成的震动非常大,一般的螺丝在这种震动中会被震松震飞。不想被震飞,那么就需要螺丝和螺母丝丝入扣,永不松动才行。这个要求看起来很简单,但是要满足它并不容易。高铁代表中国创造,却用日本螺母,因而有媒体发出类似从一颗螺母看出中国制造和日本制造的差距的感叹。但这种螺母制造工艺非常复杂,制造精度要求特别高,现在的情况是,有产品图、有产品,没有哈德洛克公司的独特的技术和诀窍,却无法制造出来,因而价格昂贵,一个至少几十元钱;这种螺母也无法做到完全不松,只是在现有的防松螺母中防松效果算很好的;这种螺母,重复使用几十次后就不能再用。
专利号为ZL201520399393.8的实用新型专利中,公开了一种自紧螺母、螺栓紧固件,紧固件包括自紧螺母本体、自紧垫圈和普通螺栓;自紧螺母本体与自紧垫圈接触面为平滑过渡的螺旋面;自紧螺母本体与普通螺栓螺纹连接;螺栓紧固件包括自紧螺栓、自紧垫圈和普通螺母;普通螺母与自紧螺栓螺纹连接。该自紧螺母、螺栓紧固件,采用自紧原理,在螺母或螺栓上设置一自紧结构,使其锁紧后达到自紧的效果,让螺母不再出现移位或者松动。这种自己螺母,又称自紧王螺母和永不松动的螺母,并宣称其防松能力超过hardlock螺母,在央视中有报道。这种螺母由于没有广泛使用,其防松效果如何,无法判断。
公开号为CN201934467U、公开日为2011年8月17日的实用新型专利中,公开了一种前端单螺纹螺旋式后双线锚固螺钉,它主要包括螺杆,螺杆上设有自攻螺纹,螺杆尾端设有连接结构件,连接结构件为外六角头,外六角头上设有垫片,垫片底部设有防松齿。该实用新型中,公开的仅是一种螺钉结构,所描述的所有结构均是螺钉结构的一部分,从图和外六角头上设有垫片的文字表达上来看,均可以毫无异议理解为垫片是螺钉的一部分,故不存在在垫片上设有与外六角头配合的止转通孔,垫片安装在外六角头外,垫片与螺杆是分开的两个构件。由于垫片是螺钉的一部分,在螺钉的旋入过程中,垫片及垫片上的防松齿也随着螺杆一起旋转,这样虽然在垫片上设有防松齿,防松齿在嵌入被连接的物体时并不是仅轴向嵌入被连接的物体,而是在旋转的过程产生轴向和周向位移嵌入被连接的物体,这样在螺钉旋转的过程中防松齿会在被连接物体的表面形成一条沿螺钉旋入方向由浅渐深的周向槽。周向槽一方面破坏被连接物体外观的美观;另一方面大大减小防松齿与被连接的物体的嵌入力,可以说防松齿对螺钉的反向防松脱作用是十分有限的;特别是由于嵌入齿的存在,使螺钉很难锁紧被连接的物体。因此这种结构的螺钉的防松齿,是起不了放松的作用的,这种结构的螺钉,是没有任何使用价值的。
从专利号为US1755807、申请日为1929年4月6日的美国专利中,发明了用止转套来限制螺栓相对螺母转动的防松技术,到专利号为ZL201510198765.5、申请日为2015年4月24日的中国发明专利中,再次提出止转套来限制螺母转动的技术方案,历时八十六年,都没有解决既能用止转套对螺栓和螺母防松或用止转套对螺栓和螺母防松、又能方便快速可靠的将止转套从止转孔中取出从而使螺栓和螺母拆离的技术问题。现有的认为防松效果好的hardlock螺母、自紧王螺母,都不是通过采用止转套阻止螺母转动来实现螺栓螺母防松;快一个世纪过去了,还没有通过采用止转套阻止螺母转动来实现螺栓螺母防松的技术应用;可见,人们陷入了虽然采用止转套能阻止螺母转动来实现螺栓螺母防松、但螺栓螺母却很难或 无法拆卸的技术误区,形成了采用止转套阻止螺母转动来实现螺栓螺母防松的技术无使用价值的惯性思维,从而阻止了本领域的技术人员改进采用止转套阻止螺母转动来实现螺栓螺母防松的技术方案的积极性。
上述现有技术的紧固连接结构,都是需要将止转套置于止转孔中约束锁紧螺母相对螺杆朝旋松方向旋转。缺点是如果止转套完全容置在止转孔中,如果又没有将止转套从止转孔中取出的取出结构,止转套很难从止转孔中取出;还有,需要在附体上加工与止转套配合的止转孔,或需要一个与附体不可转动地安装在一起的止转件,在止转件上加工与止转套外周配合的止转孔,成本高。
发明内容
针对现有技术中存在的问题,本发明克服了现有的本领域的技术人员认采用止转套限制螺纹副朝旋松方向旋转松脱的防松技术方案、因止转套很难或无法从第一止转孔中取出、导致无使用价值的惯性思维。
本发明要解决的技术问题是,提供一种不需要止转件、也不需在止转套外周设有止转套外止转部、在附体上加工与止转套外周配合的止转孔来约束止转套相对附体旋转、结构简单、止转套安装拆卸方便的紧固连接结构、止转结构、紧固连接组件、曲轴连杆机构。
一种紧固连接结构,包括紧固连接组件、母体、附体;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;螺杆穿过附体上的通孔与母体的孔安装在一起;紧固连接组件还包括止转套;螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;附体上背离母体的一侧设有与止转套止转凸台间隙配合的附体止转孔;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入附体止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被附体止转孔抵挡约束止转套相对附体旋转;螺杆不可旋转地与母体、附体安装在一起。
一种紧固连接结构,包括紧固连接组件、母体、附体;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;紧固连接组件还包括止转套、止转垫;螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫朝向附体的端面上凸设有止转垫止转凸台;止转套止转凸台的高度小于或等于止转垫的厚度,在附体上设有与止转垫止转凸台配合的附体止转孔;螺杆穿过止转垫的通孔、附体上的通孔与母体的孔安装在一起;止转垫止转凸台插入附体止转孔内约束止转垫相对附体旋转;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入止转垫止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被止转垫止转孔抵挡约束止转套相对止转垫旋转;螺杆不可旋转地与母体、附体、止转垫安装在一起。
一种止转结构,止转结构包括止转套,止转套为环状,在止转套上仅设有一个轴向的止转通孔,在止转通孔的孔壁上设有周向均匀排列、轴向的止转套内止转部;在止转套的一个端面上轴向凸设有与附体止转孔和/或止转垫止转孔配合、约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向。
作为方案三的改进,止转套止转凸台的高度大于止转套内止转部的轴线长度。
作为方案三的改进,止转结构还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫朝向附体的端面上、轴向凸设有与附体止转孔配合的止转垫止转凸台;止转套止转凸台的高度小于或等于止转垫的厚度。
作为方案三的改进,止转结构还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫背离止转套的一侧设有嵌入部或喷涂有摩擦颗粒;嵌入部为设置在止转垫的端面上的嵌入凸起、或为设置在止转垫外侧的嵌入边;止转套止转凸台的高度小于或等于止转垫的厚度。
作为方案三的改进,止转套包括环状的止转套本体,在止转套本体的轴心位置设有中心通孔,从止转套本体同侧轴向凸设有两个以上的弹性臂、弹性臂的端部径向向内形成限位部,在限位部的内侧面上设有止转套内止转部,限位部设有止转套内止转部的内侧面形成非闭合的止转通孔;止转套止转凸台与限位部同侧。
作为方案三的改进,止转套还包括弹性臂;在止转套上设有与止转通孔连通、与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空槽,止转通孔为非闭合的孔;弹性臂的一端与止转套背离止转套止转凸台的一侧相连,另一端朝向止转套设有止转套止转凸台的一侧、并在该端的端部径向向止转通孔的轴心设有限位部,限位部与止转通孔的轴线垂直,限位部径向凸出止转通孔;弹性臂与避空槽正对。
这种止转结构的止转套,由于止转套内止转部设置在止转套上,而不是设置在弹性臂的限位部上,止转通孔不会因外力产生变形,止转效果好。
作为方案三的改进,止转结构还包括限位件,一个止转套对应一个限位件;
限位件包括环状的限位件本体,在限位件本体的中心位置仅设有一个中心通孔,中心通孔的最小孔径大于止转通孔的最大孔径;还包括与限位件本体相连的两个以上的弹性臂,在弹性臂端部向中心通孔轴心方向设有与限位件本体平行的限位部,限位部径向凸出中心通孔;两个以上的限位部的最小内径小于止转通孔的最小内径;
在止转套上设有与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空空间;将限位件与止转套安装在一起,弹性臂与止转套的避空空间配合;限位件的限位部径向凸出止转套的止转通孔;在与限位件本体平行的方向、弹性臂最大的变形量大于限位件的限位部凸出止转套的止转通孔的孔壁的长度。
作为方案九的改进,限位件的限位部均凸出限位件本体,限位件本体安装在止转套的一个端面上,弹性臂轴向伸入避空空间中,限位部径向伸入止转通孔中。
这种结构的止转限位组件,限位件可以为塑胶件,并通过将止转套放在成型塑胶件的模具中、在成型限位件时将限位件与止转套固定在一起。
作为方案九的改进,在限位件的中心通孔的孔壁上设有两个以上的凹槽;弹性臂包括与限位件本体相连的第一弹性臂,沿第一弹性臂端部向中心通孔的轴心弯曲的曲面弹性臂,沿曲面弹性臂的端部再垂直向下形成的第二弹性臂,限位部设置在第二弹性臂的端部;第一弹性臂、曲面弹性臂、第二弹性臂形成U形弹性臂,U形弹性臂正对凹槽。
这种结构的止转限位组件,限位件可以为金属冲压件,并通过点焊将限位件与止转套固定在一起,成本较低。
作为方案三的改进,止转结构还包括限位件;限位件包括两个以上的弹性限位件;弹性限位件包括水平的限位部,垂直限位部弯折而成的第一弹性臂、沿第一弹性臂端部向限位部方向且平行限位部弯折、再背离限位部方向反向斜向上弯折、再反向斜向下弯折、再朝向限位部方向且平行限位部弯折而成的卡扣,再沿卡扣端部向下弯折而成的第二弹性臂,再沿第二弹性臂的端部背离限位部方向平行限位部弯折而成的抵挡部;
在止转套上设有与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空孔;
将弹性限位件的限位部朝向止转套的轴心、并将弹性卡扣穿过止转套上的避空通孔,通过弹性限位件一侧被卡扣抵挡、一侧被抵挡部抵挡将弹性限位件与限位件安装在一起,弹性限位件的限位部径向凸出止转套的止转通孔的孔壁,弹性限位件的两弹性臂之间的距离大于弹性限位件的限位部凸出止转套的止转通孔的孔壁的长度。
这种结构的止转限位组件,弹性限位件可以为金属冲压件,弹性限位件直接扣在止转套上将弹性限位件与止转套安装在一起,成本低,弹性限位件相对止转套还可拆卸,而且还大大减少限位件的材料成本。
一种包含方案三至六任一项止转结构的紧固连接组件,还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;止转套安装在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
作为方案十三的改进,紧固连接组件还包括限位件;在螺杆上设有卡槽;限位件为卡环,卡环包括非闭合的环状的卡环本体,在卡环本体的外周设有三条以上径向凸出卡环本体的限位凸条;卡环本体的内周与螺杆的卡槽底部的外周配合;限位凸条的外径大于止转套的止转通孔的最大孔径;卡环安装在卡槽内对止转套背离螺杆止转凸部的一侧轴向限位。
这种结构的卡环,卡环本体不需要特别大就可以对止转套限位,限位效果好。
作为方案十三的改进,紧固连接组件还包括限位件;在螺杆上设有卡槽;卡环由线簧弯折而成,包括与止转套背离止转套止转凸台的端面配合的非闭合的环状限位部,由环状限位 部的两端向同方向弯曲的两连接部,分别由两连接部的一端平行环状限位部朝环状限位部方向弯曲的两抵挡部,两抵挡部之间的距离大于或等于卡槽的底径,小于卡槽的最大外径;卡环的两抵挡部安装在卡槽内对止转套背离螺杆止转凸部的一侧轴向限位。
这种结构的卡环,成本低,取出时只需张开卡环的两个抵挡部,取出方便。
一种包含方案三至十二任一项止转结构的紧固连接组件,还包括螺杆、锁紧螺母;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
在锁紧螺母的一个端面上轴向凸设有与用来约束锁紧螺母相对母体旋转的止转凸台;
螺杆的外螺纹部与锁紧螺母螺纹连接,止转套安装在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
一种包含方案七至十二任一项止转结构的紧固连接组件,还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部、与限位部配合的限位部容置空间,在限位部容置空间朝向外螺纹部的面为用来抵挡限位部的抵挡面;
止转套安装在螺杆的止转抵挡部外,弹性臂通过弹性变形使限位部插入限位部容置空间内、并被限位部容置空间的抵挡面抵挡、对止转套背离外螺纹部的一侧轴向限位;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
一种包括方案三、四、七至十二任一项止转结构的紧固连接结构,还包括母体、附体、包括止转结构的紧固连接组件;紧固连接组件还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;紧固连接组件还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;止转套止转凸台的高度小于或等于止转垫的厚度;螺杆穿过止转垫的通孔、附体上的通孔与母体的孔安装在一起;在止转垫背离止转套的一侧设有嵌入部,附体的硬度小于止转垫的嵌入部的硬度,止转垫的嵌入部嵌入附体内约束止转垫相对附体旋转;或在止转垫背离止转套的一侧喷涂有摩擦颗粒,止转垫的摩擦颗粒与附体间产生足够大的摩擦力约束止转垫相对附体旋转;或止转垫通过固定胶固定在附体上约束止转垫相对附体旋转;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入止转垫止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被止转垫止转孔抵挡约束止转套相对止转垫旋转;螺杆不可旋转地与母体、附体、止转垫安装在一起。
作为方案十八的改进,还包括锁紧螺母;在锁紧螺母的一个端面上轴向凸设有用来约束锁紧螺母相对母体旋转的止转凸台;止转垫还包括螺母止转垫,螺母止转垫上的止转垫止转孔与锁紧螺母的止转凸台配合;母体上与螺杆的外螺纹部配合的孔为通孔,螺杆穿过止转垫上的通孔、附体上的通孔、母体上的通孔、螺母止转垫的通孔与锁紧螺母连接;
在螺母止转垫朝向母体的一侧设有嵌入部,母体的硬度小于螺母止转垫的嵌入部的硬度,螺母止转垫的嵌入部嵌入母体内约束螺母止转垫相对母体旋转;或在螺母止转垫朝向母体的一侧喷涂有摩擦颗粒,螺母止转垫的摩擦颗粒与母体间产生足够大的摩擦力约束螺母止转垫相对母体旋转;或螺母止转垫通过固定胶固定在母体上约束螺母止转垫相对母体旋转;
锁紧螺母的止转凸台插入螺母止转垫的止转垫止转孔内约束锁紧螺母相对螺母止转垫旋转;锁紧螺母不可旋转地与母体安装在一起。
一种包括方案三、四、七至十二任一项止转结构的紧固连接结构,止转结构的紧固连接结构,还包括母体、附体、包括止转结构的紧固连接组件;
紧固连接组件还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;母体与附体为一体式结构,形成带断口的环形体;在环形体的断口的两端分别同向设有相对的第一安装部与第二安装部;在第一安装部上设有与螺杆的外螺纹部配合的通孔,在第二安装部上设有与螺杆配合、且与第一安装部上的通孔相对应的孔;螺杆的外螺纹部穿过第一安装部上的通孔与第二安装部的孔安装在一起;第一安装部上背离第二安装部的一侧设有与止转套止转凸台间隙配合的第一安装部止转孔;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入第一安装部止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被第一安装部止转孔抵挡约束止转套相对第一安装部旋转;螺杆不可旋转地与第二安装部、第一安装部安装在一起。
一种曲轴连杆机构,包括曲轴、连杆组、紧固连接组件;连杆组包括连杆体、连杆大头盖、连杆大头轴瓦;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部 径向凸出外螺纹部;连杆体包括连杆大头和连杆小头,连杆大头上设有与螺杆的外螺纹部配合的通孔;连杆大头盖上设有与螺杆的外螺纹部配合的孔;紧固连接组件还包括止转套、限位件;
螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;在连杆大头背离连杆大头盖的一侧设有与止转套的止凸部配合的大头止转孔;连杆大头轴瓦合抱在曲轴外,连杆大头和连杆大头盖合抱在连杆大头轴瓦外;螺杆的外螺纹部依次穿过连杆大头的通孔与连杆大头盖上的孔安装在一起;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入大头止转孔中,限位件安装在螺杆上对止转套背离螺杆大头的一侧轴向限位;螺杆止转部与止转套内止转部配合约束止转套相对螺杆相旋转,止转套止转凸台在螺杆的旋松方向被大头止转孔抵挡约束止转套相对连杆大头旋转,连杆大头盖和连杆大头无相对旋转,螺杆不可旋转地与连杆大头盖和连杆大头安装在一起。
本发明的有益效果是:
既要阻止螺纹副朝旋松方向旋转防松,又要保持机械螺纹连接的方便、快速、可靠地可拆卸性,是人们一直长期以来致力解决却没有彻底解决的技术难题。
本发明通过止转套安装在螺杆的止转抵挡部外、止转套止转凸台插入附体止转孔或垫片止转孔内,止转套止转凸台在朝向螺杆旋松方向的一侧被附体止转孔或垫片止转孔抵挡约束止转套相对附体旋转;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转;这样螺杆不可旋转地将母体、附体紧固连接在一起。螺杆无法转动,螺杆就不会因为朝旋松方向旋转而松脱,使螺杆保持在最初需要的锁紧位置,螺杆的螺纹连接的锁紧力在使用过程中基本无变化;即使采用普通的螺杆紧固连接母体和附体,在剧烈震动、高温等恶劣环境下,螺杆的螺纹连接的锁紧力在使用过程中基本无变化;因此达到最好的锁紧效果,能有效避免螺纹连接失效。
止转套止转凸台的高度大于止转套内止转部的轴线长度,当紧固连接结构的止转套安装在螺杆的止转抵挡部外时,在止转套的止转套内止转部未与螺杆的螺杆止转部接触前,止转套止转凸台的抵挡位置在朝向螺杆旋松方向能与附体止转孔或垫片止转孔接触,从而使插入附体止转孔或垫片止转孔的止转套止转凸台的抵挡位置靠近附体止转孔或垫片止转孔,或与附体止转孔或垫片止转孔接触。
螺杆要松脱,必须朝旋松方向旋转,由于止转套止转凸台的抵挡位置靠近附体止转孔或垫片止转孔,或与附体止转孔接触,螺杆一朝旋松方向旋转,止转套止转凸台在朝向螺杆旋松方向的一侧即被附体止转孔抵挡,因此即使止转套止转凸台与附体止转孔间隙配合,止转套也无法朝旋松方向旋转或朝旋松方向仅能旋转一点点、止转套止转凸台即被附体止转孔抵挡,止转套无法旋转约束螺杆无法反转,能有有效避免螺杆朝旋松方向旋转松脱,止转效果好。
螺杆止转部周向均匀排列在螺杆的止转抵挡部的外,这样螺杆止转部和与之配合的止转套内止转部就可以至少为6个以上,止转套内止转部的个数为螺杆止转部的整数倍,止转套与螺杆的止转抵挡部配合的结构可为齿轮形、花键形或正多边形等,从而保证了螺纹连接的预紧力满足使用要求,锁紧效果好。如果止转套止转凸台的抵挡位置靠近附体止转孔或垫片止转孔,则止转效果没有那么好。
在止转套上仅设有一个止转通孔,紧固连接组件的适用范围广,不受母体和附体上用来安装螺杆的孔的孔距限制。这种紧固连接结构,结构更紧凑,更符合通用的标准件紧固件的安装和使用习惯,可以设计成标准件。
在止转套上设有止转套止转凸台,在附体上设有附体止转通孔,通过止转套止转凸台与附体止转孔配合来约束止转套相对附体,只需在附体上加工或成型与止转套止转凸台配合的附体止转孔,附体止转孔一般为圆孔,加工成本低。
用止转垫片止转,在止转垫片背离止转套的一侧设有嵌入部,止转垫片的嵌入部嵌入附体内约束止转垫片相对附体旋转,不需要在附体上加工与止转套止转凸台配合的孔,附体上不需要任何约束止转套旋转的止转结构,止转垫片可做成标准件,因而大大降低成本。在拆卸紧固连接组件时,止转垫不需与附体分离,因而可确保止转垫片的嵌入部嵌入附体内约束止转垫相对附体旋转。
用止转垫片止转,在止转垫片背离止转套的一侧设有垫片止转凸台,垫片止转凸台插入附体止转孔内约束止转垫片相对附体旋转,止转套止转凸台与垫片止转孔配合来约束止转 套相对附体旋转,只需在附体上加工或成型与垫片止转凸台配合的附体止转孔,附体止转孔一般为圆孔,加工成本低。
用止转垫片止转,止转垫片通过固定胶粘在附体上约束止转垫片相对附体旋转,不需要在附体上加工与止转套止转凸台配合的孔,附体上不需要任何约束止转套旋转的止转结构,止转垫片可做成标准件,因而大大降低成本,对附体的材料也无限制,只需附体表面平整即可,成本特别低,也不会破坏附体表面。在拆卸紧固连接组件时,止转垫不需与附体分离。
止转套止转凸台与附体止转孔或垫片止转孔配合约束止转垫相对附体旋转,不需要在止转套外周设有止转套外止转部,不需要与止转套外周的止转套外止转部配合的止转孔来约束止转套相对附体旋转;因而不需要在附体上加工与止转套配合的止转孔,也不需要一个与附体不可转动地安装在一起、设有与止转套外止转部配合的止转孔的止转件,也不需要在止转套上设计两个以上的止转通孔来约束止转套旋转。相对在附体上加工设有与止转套外止转部配合的止转孔,加工成本大大降低。相对用与附体不可转动地止转件来约束止转套相对附体旋转,节省了止转件,省去了在安装现场安装止转件,节省了安装时间成本,大大降低了成本。
止转套与螺杆抵挡部之间一般为间隙配合,便于止转套的安装和取出。由于止转套没有安装在止转孔中,完全外露,止转套的安装方便、快速;止转套的拆卸即使不借助拆卸工具也能很方便地拆卸,拆卸方便、快速、可靠。
止转套上设有弹性臂,在弹性臂的端部设有限位部,不再需要限位件对止转套限位。止转结构包括止转套和限位件,在限位件上设有弹性臂,在弹性臂的端部设有限位部;在工厂就将限位件和止转套安装在一起,并可做成标准件,在工厂,由于可实现自动化作业,因此安装效率高。设有弹性臂的止转套和包括设有弹性臂的限位件的止转结构,在螺杆的安装现场,不再需要安装限位件,因此安装快捷,效率高。
在锁紧螺母上设有止转凸台约束锁紧螺母相对母体旋转,不需在母体上加工如内六角孔等,降低成本。止转垫还包括锁紧螺母止转垫,止转垫的嵌入部嵌入母体内约束止转垫相对母体旋转、或止转垫的摩擦颗粒与附体间产生足够大的摩擦力约束止转垫相对附体旋转、止转垫通过固定胶固定在附体上约束止转垫相对附体旋转,不需在母体上加工约束锁紧螺母相对母体旋转的止转结构,降低成本。
本发明的止转结构,同样适用对锁紧螺母止转。
母体与附体为一体式结构,形成带断口的环形体,这种机构的紧固连接结构,用来连接其它零件时,由于螺杆相对第一安装部和第二安装部不会旋转,即使在紧固连接结构承受很大地力、或紧固连接结构处于剧烈震动的环境等,也不会因为螺杆朝旋松方向旋转导致螺纹连接失效,确保螺杆可靠地将第二安装部、第一安装部紧固连接在一起。
采用本发明的紧固连接组件的曲轴连杆机构,通过紧固连接组件固定在一起的连杆体和连杆大头盖,由于螺杆相对连杆体、螺杆大头盖不会旋转,因此即使连杆体承受很大地力、或曲轴连杆机构处于剧烈震动的环境等,也不会因为螺杆朝旋松方向旋转导致螺纹连接失效,这样确保连杆体和连杆大头盖可靠地安装在一起,防止事故发生。
在止转套上设有止转孔,在附体上设有与止转套的止转孔配合的止转凸台,是本发明的一个简单的等同置换,当然也属于本发明的保护范围。将止转凸台设置在附体上,除非是注塑件、铸造件等,在成型附体时就一起成型止转凸台,若加工止转凸台,成本特别高,故在本专利中不再描述。
附图说明
图1为实施例1的紧固连接结构的立体分解示意图。
图2为实施例1的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图3为实施例2的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图4为实施例2的紧固连接结构的立体分解示意图。
图5为实施例3的紧固连接结构的立体分解示意图。
图6为实施例3的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图7为实施例4的紧固连接结构的立体示意图。
图8为实施例4的紧固连接组件的立体分解示意图。
图9为实施例5的紧固连接结构的立体示意图。
图10为实施例5的紧固连接组件的立体分解示意图。
图11为实施例6的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图12为实施例6的紧固连接组件的立体分解示意图。
图13为实施例7的紧固连接组件的立体分解示意图。
图14为实施例7的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图15为实施例8的紧固连接组件的立体分解示意图。
图16为实施例8的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图17为实施例9的紧固连接组件的立体分解示意图。
图18为实施例9的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图19为实施例9的止转套与限位件立的立体分解示意图。
图20为实施例10的紧固连接结构的立体示意图。
图21为实施例10的紧固连接结构的立体分解示意图。
图22为实施例10的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图23为实施例11的紧固连接结构的立体分解示意图。
图24为实施例12的紧固连接组件的立体分解示意图。
图25为实施例13的紧固连接组件的立体分解示意图。
图26为实施例14的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图27为实施例15的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图28为实施例15的紧固连接结构的立体分解示意图。
图29为实施例16的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图30为实施例16的紧固连接结构的立体示意图。
图31为实施例17的紧固连接结构的立体示意图。
图32为实施例17的紧固连接组件的立体分解示意图。
图33为实施例18的紧固连接组件的立体分解示意图。
图34为实施例19的紧固连接结构的立体示意图。
图35为实施例19的紧固连接结构过螺杆轴心位置剖切的剖视示意图。
图36为实施例19的紧固连接结构的立体分解示意图。
图37为实施例20的紧固连接结构的立体分解示意图。
图38为实施例20的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图39为实施例21的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图40为实施例21的紧固连接结构的立体分解示意图。
图41为实施例22的紧固连接组件的立体分解示意图。
图42为实施例23的紧固连接组件的立体分解示意图。
图43为实施例23的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图44为实施例24的紧固连接结构的立体分解示意图。
图45为实施例24的螺杆与止转套的立体分解示意图。
图46为实施例24的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图47为实施例25的紧固连接组件的立体分解示意图。
图48为实施例26的紧固连接组件的立体分解示意图。
图49为实施例26的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图50为图49的A区域的局部放大示意图。
图51为实施例27的止转套与弹性限位件的立体示意图。
图52为实施例27的紧固连接结构过螺杆的轴心位置剖切的剖视示意图。
图53为图52的A区域的局部放大示意图。
图54为实施例28的止转套限位件的立体示意图。
图55为实施例29的止转套限位件的立体示意图。
图56为实施例30的曲轴连杆机构的立体分解示意。
图57为实施例30的曲轴连杆机构过两螺杆的轴线剖切的剖切示意图。
具体实施方式
实施例1
如图1、图2所示,一种紧固连接组件,包括螺杆1、止转套2、限位件,限位件为抵挡螺母3。
螺杆1包括依次排列的外螺纹部4、外齿轮形的止转抵挡部5、在安装和拆卸螺杆1时提供扳手夹持位的夹持部6和外螺纹部7。止转抵挡部5径向凸出外螺纹部4和夹持部6,夹持部6径向凸出外螺纹部7。止转抵挡部5的外周设有多个均匀周向排列的三角形齿,一个三角形齿形成一个螺杆止转部8。夹持部6的外周为正六角形。
止转套2为圆环状,止转套2的轴心位置设有与外齿轮形状的止转抵挡部5间隙配合的轴向的内齿轮形状的止转通孔9,止转通孔9的孔壁上设有多个均匀周向分布的三角形槽, 止转通孔9的孔壁上的单个三角形槽形成一个与螺杆止转部8配合的止转套内止转部10。在止转套2的一个端面上轴向凸出一个柱状的止转凸台11,止转凸台11的抵挡位置在周向方向、朝向螺杆旋松方向。止转凸台11的高度大于止转套内止转部10的轴线长度。这样在止转套2的止转套内止转部10未与螺杆1的螺杆止转部8接触前,止转凸台11的抵挡位置能与止转圆孔17接触。
抵挡螺母3为阶梯形,抵挡螺母3的轴心位置设有与螺杆1的外螺纹部7配合的螺纹通孔12,与螺纹通孔12连通、用来避空螺杆1的夹持部6的避空孔13。
紧固连接结构包括上述的紧固连接组件、母体14、附体15。
附体15上设有与螺杆1的外螺纹部4配合的通孔16,在附体15背离母体14的一侧设有与止转凸台11配合的止转圆孔17。
母体14上设有与螺杆1的外螺纹部4螺纹配合的螺纹盲孔18。
螺杆1的外螺纹部4依次穿过附体15上的通孔16、与母体14的螺纹盲孔18螺纹连接,止转抵挡部5一侧的端面轴向抵挡附体15,螺杆1将母体14与附体15紧固连接在一起。止转套2安装在螺杆1的止转抵挡部5外,止转凸台11的抵挡位置靠近附体15的止转圆孔17或与止转圆孔17接触,三角形齿的螺杆止转部8插入相应的三角形槽的止转套内止转部10内,止转套2的止转凸台11插入附体15的止转圆孔17中,抵挡螺母3安装在螺杆1的外螺纹部7上,螺杆1的夹持部6置于避空孔13内,抵挡螺母3对止转套2背离附体15的一侧轴向限位。止转凸台11在朝向螺杆旋松方向的一侧被附体15的止转圆孔17抵挡、螺杆1穿过止转套2的止转通孔9共同约束止转套2相对附体15旋转,螺杆止转部8与止转套内止转部10配合约束止转套2相对螺杆1相旋转,母体14和附体15无相对旋转,因此螺杆1不可旋转地与母体14和附体15安装在一起。
实施例2
如图3、图4所示,与实施例1不同的是,抵挡螺母31为与螺杆32的外螺纹部33配合的外六角螺母。
螺杆32包括依次排列的外螺纹部34、止转抵挡部35、外螺纹部33。止转抵挡部35包括外周为圆柱形的抵挡圆凸环36和外周为正六角形的止转部37,止转部37与外螺纹部33相连。止转部37的外周的六个平面形成周向排列的六个螺杆止转部37。抵挡圆凸环36径向凸出外螺纹部34和止转部37,止转部37径向凸出外螺纹部33。
止转套39的轴心位置设有与螺杆32的止转部37间隙配合的轴向的止转通孔40,与止转通孔40连通、避空螺杆32的抵挡圆凸环36的避空孔38。止转通孔40的孔壁为两个结构相同的正六角形孔旋转30°的相交结构,在止转通孔40的孔壁上形成十二个尖角形凹槽,每个尖角形凹槽由正六角形孔的两相交平面形成,尖角形凹槽的两相交平面形成与止转部37的螺杆止转部41配合的止转套内止转部42。在止转套39近避空孔38的端面上轴向凸出一个止转凸台43。
止转套39的止转通孔40安装在螺杆32的止转部37外,螺杆32的抵挡凸环置于止转套39的避空孔38内。
实施例3
如图5、图6所示,与实施例2不同的是,限位件为卡环51。
螺杆52包括依次排列的外螺纹部53、夹持部54、止转抵挡部55和圆柱形的安装部59。止转抵挡部55的外周设有多个均匀周向排列的梯形齿,一个梯形齿形成一个螺杆止转部56。夹持部54的外周为正六角形。安装部59上设有与卡环51配合的卡槽60。夹持部54径向凸出外螺纹部53和与止转抵挡部55,止转抵挡部55从径向凸出安装部59。
紧固连接结构与实施例1不同的是,卡环51扣在螺杆52的安装部59的卡槽60内对止转套57背离附体58的一侧轴向限位。
实施例4
如图7、图8所示,与实施例1不同的是,限位件为卡环71。
螺杆72包括依次排列的外螺纹部73、止转抵挡部74、夹持部75和圆柱形的安装部76。止转抵挡部74的外周设有多个均匀周向排列的梯形齿,一个梯形齿形成一个螺杆止转部77,夹持部75的外周为正六角形,安装部76上设有与卡环71配合的卡槽78,止转抵挡部74径向凸出外螺纹部73与夹持部75,夹持部75径向凸出安装部76。
所述的卡环71由金属线材弯折而成,包括与止转套79背离设置止转凸台的端面配合的非闭合的圆环状限位部81,由圆环状限位部81的两端垂直圆环状限位部81同方向弯折的两连接部82,分别由两连接部82的一端平行圆环状限位部81朝环状限位部81方向弯曲的两 平行的抵挡部83,及分别在两抵挡部83的端部向外弯折后再反向弯折形成的环状的抓取部84;在两抵挡部83间形成与卡槽78底部的外周配合的避空空间80。
卡环71的两抵挡部83安装在螺杆72的安装部76的卡槽78内,卡环71的环状限位部81抵挡在止转套79背离止转凸台的端面上对止转套79背离附体的一侧轴向限位。
实施例5
如图9、图10所示,与实施例1不同的是,限位件为卡环91。
螺杆92包括依次排列的外螺纹部93、止转抵挡部94。止转抵挡部94包括外周为圆柱形的抵挡圆凸环95和外周为正六角形的止转部96,抵挡圆凸环95置于外螺纹部93与止转部96之间。止转部96上设有与卡环91配合的卡槽97,止转部96的外周的六个平面形成周向排列的六个螺杆止转部105。抵挡圆凸环95径向凸出外螺纹部93和止转部96。
止转套99的轴心位置设有与螺杆92的止转部96配合的轴向的止转通孔98,止转通孔98的孔壁为两个结构相同的正六角形孔旋转30°的相交结构,在止转通孔98的孔壁上形成十二个尖角形凹槽,每个尖角形凹槽由正六角形孔的两相交平面形成,尖角形凹槽的两相交平面形成与螺杆92的螺杆止转部105配合的止转套内止转部106,在止转套99的一个端面上轴向凸出一个止转凸台100。
卡环91包括非闭合的圆环状的卡环本体101,卡环本体101的外周均匀分布六条径向凸出的限位凸条102,在卡环97本体两端的端部均设有拆卸用通孔103。限位凸条102径向凸出螺杆92上的卡槽97的外周,限位凸条102的最大外径大于止转通孔98的最大孔径;卡环本体101的内周与螺杆92的止转抵挡部94的卡槽97底部的外周配合。
止转套99安装在螺杆92的止转部96外,卡环91的卡环本体101安装在螺杆92的止转部96的卡槽97内,卡环91的限位凸条102抵挡止转套99背离附体104的一侧的端面对止转套99背离附体104的一侧轴向限位。
拆卸螺杆92时,用特制的钳类工具伸入到两个拆卸用通孔103中,再向外张开卡环91,卡环91就可从螺杆92的卡槽97中脱出来。
实施例6
如图11、图12所示,与实施例1不同的是,一种紧固连接组件,包括螺杆111、止转套112,不需限位件。
螺杆111包括外螺纹部113、外齿轮形状的止转抵挡部114和带有倒角的圆柱形的限位抵挡部115。止转抵挡部114置于外螺纹部113和限位抵挡部115之间,限位抵挡部115径向凸出止转抵挡部114,止转抵挡部114径向凸出外螺纹部113。止转抵挡部114的外周为外齿轮形状,止转抵挡部114的外周设有多个均匀周向排列的梯形齿,一个梯形齿形成一个螺杆止转部116。
止转套112包括环状的止转套本体127,在止转套本体127的轴心位置设有中心通孔117,在中心通孔117的孔壁上均匀分布三个弹性臂118。每个弹性臂118包括从中心通孔117的孔壁径向向内形成的水平凸部119、轴向向上再径向向内再轴向下形成的U形弹性臂120;在U形弹性臂120的端部径向向内形成限位部121、在三个限位部121的内侧面上设有与螺杆111外齿轮形状的止转抵挡部114部分配合的内齿轮形状的多个均匀周向排列的三角形槽,限位部121的内侧面上的单个三角形槽形成一个与螺杆止转部116配合的止转套内止转部122,三个限位部121的内侧面上的三角形槽形成非闭合的止转通孔123。止转套112背离U形弹性臂120的端面上轴向凸出一个止转凸台124。止转抵挡部114的外周与限位抵挡部115朝向止转抵挡部114的端面形成容置限位部121的限位部容置空间。
紧固连接结构与实施例1不同的是,止转套112的U形弹性臂120通过弹性变形置于螺杆111的止转部外且止转套112的止转凸台124插入附体125的止转孔126中,止转套112的限位部121被螺杆111的限位抵挡部115朝向止转抵挡部114的端面抵挡对止转套112背离附体125的一侧轴向限位。
实施例7
如图13、图14所示,与实施例6不同的是,止转套141包括环状的止转套本体142,在止转套本体142的轴心位置设有中心通孔143,沿止转套本体142的外周和内周同向延伸设有相同高度的外凸环144和内凸环145,在内凸环145上沿内凸环145的顶面向内径向设有三个限位部146,沿每个限位部146的周向两侧、以中心通孔143轴心为中心点设有切开内凸环145并部分切开止转套本体142的放射状的直线切槽147,与限位部146相连的内凸环145和止转套本体142形成弹性臂148,限位部146、与限位部146相连的内凸环145和止转套本体142形成弹性的止转抵挡部149。在三个限位部146的内侧面上设有与螺杆150外齿轮形状的止转抵挡部151部分配合的内齿轮形状的多个均匀周向排列的三角形槽,限位部146 的内侧面上的单个梯形槽形成一个与螺杆止转部152配合的止转套内止转部153,三个限位部146的内侧面上的三角形槽形成非闭合的止转通孔。在止转套本体142朝向内凸环145的一侧、内凸环145和外凸环144之间轴向凸出一个止转凸台154。止转抵挡部151的外周和限位抵挡部157朝向止转抵挡部151的端面形成容置限位部146的限位部容置空间。
止转套141的弹性臂148通过弹性变形置于螺杆150的止转抵挡部151外且止转套141的止转凸台154插入附体155的止转圆孔156中,止转套141的限位部146被螺杆150的限位抵挡部157朝向止转抵挡部151的端面抵挡对止转套141背离附体155的一侧轴向限位。
实施例8
如图15、图16所示,与实施例6不同的是,螺杆171依次包括外螺纹部172、抵挡部173、止转部174,止转部174径向凸出抵挡部173。抵挡部173和止转部174形成螺杆的止转抵挡部。
止转套175包括环状的止转套本体176,在止转套本体176的轴心位置设有中心通孔180,沿止转套本体176的外周和内周同向延伸设有相同高度的外凸环177和内凸环178,在内凸环178上沿内凸环178的顶面向内径向设有三个限位部179,沿每个限位部179的周向两侧、以中心通孔180轴心为中心点设有切开内凸环178并部分切开止转套本体176的放射状的直线切槽181,与限位部179相连的内凸环178和止转套本体176形成弹性臂182。在内凸环178上不设有限位部179的内侧面上设有与螺杆171的外齿轮形状的止转部174配合的内齿轮形状的多个均匀周向排列的梯形槽,单个梯形槽形成一个与螺杆止转部183配合的止转套内止转部184,三个限位部179的内侧面上的三角形槽形成非闭合的止转通孔185。在止转套本体176朝向内凸环178的一侧、内凸环178和外凸环177之间轴向凸出一个止转凸台186。抵挡部173的外周、止转部174朝向抵挡部173的端面形成容置限位部179的限位部容置空间。
止转套175的止转套内止转部184置于螺杆171的止转部174外、止转套175的弹性臂182通过弹性变形置于螺杆171的抵挡部173外且止转套175的止转凸台186插入附体187的止转圆孔188中,止转套175的限位部179被螺杆171的止转部174朝向抵挡部173的端面抵挡对止转套175背离附体187的一侧轴向限位。
实施例9
如图17至图19所示,与实施例1不同的是,螺杆201依次包括外螺纹部202、抵挡部203、外齿轮形的止转部204、正六角形的夹持部205,抵挡部203径向凸出外螺纹部202,止转部204径向凸出抵挡部203与夹持部205。抵挡部203和止转部204形成止转抵挡部206,抵挡部203的外周与止转部204朝向外螺纹部202的面形成限位部容置空间219。
限位件为塑胶件,包括圆环状的限位件本体207,限位件本体207外周形状与止转套208外周形状配合并相似,限位件本体207内圆直径稍大于螺杆201的止转部204的外径。在限位件本体207的中心通孔218上设有三个与凹槽220,沿每个凹槽220的底面径向向轴线方向再轴向同侧凸出限位件本体形成三个弹性臂209,沿每个弹性臂209的端部径向向轴线方向形成与限位件本体207平行的限位部210,限位部210径向凸出中心通孔218的孔壁。在限位件本体207的同一个端面上凸出六根限位柱211,在限位柱211的端部设有抵挡环。限位柱211与限位部210置于限位件本体207的同一侧。
止转套208为金属件,在止转套208的止转通孔212的孔壁周向均布三个避空限位件的弹性臂209的避空槽213,在止转套208上设有六个周向分布的轴向的、与限位件的限位柱211配合的安装孔214,在止转套208的外周设有三个用来取出限位件的避空槽213。限位件的三个限位部210的最小内径小于止转通孔212的最小内径。
将加工完成后的止转套208放入成型限位件的注塑模具中,注塑成型限位件,这样限位件的限位柱211穿过止转套208的安装孔214、通过限位柱211的抵挡环将限位件固定在止转套208上,弹性臂209置于止转套208的避空槽213中,限位部210径向凸出止转通孔212。
止转套208与限位件一同安装在螺杆201的止转部204外,止转套208的止转套内止转部217置于螺杆201的螺杆止转部216外,限位件的限位部210通过弹性臂209弹性变形伸入限位部容置空间219内、并被止转部204朝向抵挡部203的端面抵挡、对止转套208背离附体215的一侧轴向限位。
实施例10
如图20至图22所示,与实施例9不同的是,所述的紧固连接组件还包括圆环状的止转垫241。
附体242与母体243的形状为圆环体,附体242外周与母体243的外周形状相同。附体242上周向均布多个通孔244,通孔244的圆心分布在与圆环体的轴心同轴的同一圆周上。
母体243上设有与附体242上通孔244一一对应的螺纹盲孔245。止转垫241的外周与附体242的外周形状相同,止转垫241上设有与附体242的通孔244一一对应、与螺杆246的外螺纹部247配合的通孔244,止转垫241的每个通孔244外侧的均设有一个与止转套248的止转凸台249间隙配合的垫片止转通孔244。
螺杆246穿过相应的垫片止转通孔244、附体242相应的通孔244与母体243上相应的螺纹盲孔245螺纹连接。螺杆246将止转垫241、附体242和母体243安装在一起。
止转垫241上的将止转套248的止转凸台249正对止转垫241的垫片止转通孔244,由于垫片止转通孔244的直径大于止转凸台249的直径,提供了一个微调空间,使止转套248的止转套内止转部251与相应螺杆246的螺杆止转部252能够正对,从而将止转套248与限位件一同安装在螺杆246的止转部254外,止转套248的止转套内止转部251置于螺杆246的螺杆止转部252外,限位件的弹性卡扣253通过弹性变形被止转部254朝向抵挡部250的端面抵挡对止转套248背离附体242的一侧轴向限位,止转套248的止转凸台249伸入垫片止转通孔244内约束止转套248相对垫片旋转,两个以上的螺杆246约束止转垫241相对附体242旋转,母体243和附体242无相对旋转,因此螺杆246均不可旋转地与母体243、附体242和止转垫241安装在一起。
实施例11
如图23所示,与实施例9不同的是,所述的紧固连接组件还包括止转垫261。
母体262为圆弧过渡的L形件,包括直线部263,沿直线部263一端向一侧弯曲90°的圆弧部264,连接圆弧部264另一端的直线部265。在母体262上沿母体262形状分布多个螺纹盲孔266。
附体267与母体262的外周形状相同,在附体267上设有与母体262的螺纹盲孔266一一对应的通孔268。
止转垫261的外周与附体267的外周形状相同,止转垫261上设有与附体267的通孔268一一对应的通孔269,止转垫261的每个通孔269外侧均设有一个与止转套270的止转凸台间隙配合的垫片止转通孔271。
实施例12
如图24所示,与实施例1不同的是,止转抵挡部281的外周为花键形,外周形成五个凸出部,每个凸出部形成一个螺杆止转部282。
止转通孔283的孔壁为与止转抵挡部281的花键形状的外周配合的花键形凹槽,止转通孔283孔壁上的单个凹槽形成与螺杆止转部282配合的止转套内止转部284。
实施例13
如图25所示,与实施例1不同的是,止转抵挡部291的外周设有多个均匀周向排列的梯形齿,一个梯形齿形成一个螺杆止转部292。
止转通孔293的孔壁上设有多个均匀周向分布的梯形槽,止转通孔293的孔壁上的单个梯形槽形成一个与螺杆止转部292配合的止转套内止转部294。
实施例14
如图26所示,与实施例1不同的是,紧固连接结构包括紧固连接组件、一体式结构的母体和附体。母体与附体形成带断口的环形体301;在所述的环形体301的断口的两端分别同向设有正对的第一安装部302与第二安装部303。在第一安装部302上设有与所述的螺杆304配合的通孔305。在所述的第二安装部303上设有与所述的螺杆304配合、且与第一安装部302上的通孔305相对应的螺纹孔307。螺杆304的外螺纹部306穿过第一安装部302上的通孔305与第二安装部303的螺纹孔307螺纹连接,螺杆304将第一安装部302和第二安装部303紧固连接在一起。
实施例15
如图27、图28所示,与实施例1不同的是,紧固连接组件还包括锁紧螺母321。
锁紧螺母321的外周包括正六角形的夹持部322、圆锥形的抵挡部323及设置在抵挡部323端面上的轴向的止转凸台324,锁紧螺母321轴心位置设有与螺杆325的外螺纹部326配合的螺纹通孔327。
在母体328背离附体329的一侧设有与锁紧螺母321的止转凸台324间隙配合的圆止转孔332。
锁紧螺母321的止转凸台324插入母体328的圆止转孔332中,锁紧螺母321不可旋转地安装在母体328上,螺杆325的外螺纹部326依次穿过附体329上的通孔333、母体328上通孔334与锁紧螺母321的螺纹通孔327螺纹连接,止转抵挡部323一侧的端面轴向抵挡附体329,锁紧螺母321轴向抵挡母体328,螺杆325与锁紧螺母321将母体328与附体329紧固连接在一起。
实施例16
如图29、图30所示,一种紧固连接组件,包括螺杆351、止转套352。
螺杆351包括依次排列的外螺纹部353和外齿轮形状的止转抵挡部354,止转抵挡部354径向凸出外螺纹部353。止转抵挡部354的外周设有多个均匀周向排列、齿齿相连且圆滑过渡(未示出)的尖角圆滑过渡(未示出)的三角形齿,一个三角形齿形成一个螺杆止转部355。止转抵挡部354背离背离外螺纹部353的端面上设有用来安装和拆卸螺杆351的内六角形的螺丝批孔356。
止转套352包括环状的止转套本体357,止转套本体357的轴心位置设有与止转抵挡部354配合的轴向的止转通孔358,止转通孔358的孔壁为与止转抵挡部354的外齿轮形状间隙配合的内齿轮形状的孔,止转通孔358的孔壁上设有多个均匀周向排列的三角形槽,止转通孔358的孔壁上的单个三角形槽形成一个与螺杆止转部355配合的止转套内止转部359。在止转套本体357的一个端面上轴向凸出一个柱状的止转凸台360,止转凸台360的抵挡位置在周向方向、朝向螺杆旋松方向。。
紧固连接结构包括上述的紧固连接组件、母体361、附体362。
附体362上设有与螺杆351的外螺纹部353配合的通孔363,在附体362背离母体361的一侧设有与止转凸台360间隙配合的止转圆孔364,。
母体361上设有与螺杆351的外螺纹部353螺纹配合的螺纹盲孔365。
螺杆351的外螺纹部353依次穿过附体362上的通孔363、与母体361的螺纹盲孔365螺纹连接,止转抵挡部354一侧的端面轴向抵挡附体362,螺杆351将母体361与附体362紧固连接在一起。
止转套352安装在螺杆351的止转抵挡部354外,止转凸台360的抵挡位置靠近附体362的止转圆孔364或与止转圆孔364接触,三角形齿的螺杆止转部355插入相应的三角形槽的止转套内止转部359内,且止转套352的止转凸台360插入附体362的止转圆孔364中,在螺杆止转部355和止转套内止转部359的间隙间填充有固定胶366,固定胶366凸出止转套352背离附体362的端面,固定胶366将止转套352与螺杆351的止转抵挡部354固定在一起,从而对止转套352背离附体362的一侧轴向限位。止转凸台360在朝向螺杆旋松方向的一侧被附体362的止转圆孔364抵挡、螺杆351穿过止转套352的止转通孔358共同约束止转套352相对附体362旋转,螺杆止转部355与止转套内止转部359配合约束止转套352相对螺杆351相旋转,母体361和附体362无相对旋转,因此螺杆351不可旋转地与母体361和附体362安装在一起。
实施例17
如图31、图32所示,与实施例16不同的是,在止转套381的止转通孔382的孔壁上设有周向均布的三个圆弧形的胶槽383,在胶槽383与胶槽383相邻的螺杆止转部384和止转套内止转部的385间隙间填充有固定胶386。
实施例18
如图33所示,与实施例16不同的是,螺杆391的止转抵挡部392背离外螺纹部393的端面有倒角,增大固定胶394的附着面积,从而增大固定胶394的固定力。螺丝批孔395为十字形孔。
实施例19
如图34至图36所示,与实施例5不同的是,紧固连接组件还包括止转垫500。
螺杆501包括依次排列的外螺纹部502、光杆部503、止转抵挡部504。止转抵挡部504径向凸出光杆部503。止转抵挡部504上设有与卡环505配合的卡槽506。
止转垫500的轴心位置设有与螺杆501的外螺纹部502间隙配合的圆中心通孔507,止转垫500的端面设有一个与止转套508的止转凸台509间隙配合的垫片圆止转通孔510。圆中心通孔507的外周端面上轴向凸出一个止转垫凸台511。止转垫500的最小外径大于止转套508的最大外径。
附体512上设有与螺杆501的外螺纹部502配合的通孔513,在附体512背离母体514的一侧设有与止转垫凸台511配合的止转圆孔515。
将止转垫500的止转垫凸台511插入止转圆孔515内,且将止转垫500的圆中心通孔507正对附体512上的通孔513。螺杆501的外螺纹部502依次穿过止转垫500的圆中心通孔507、附体512上的通孔513与母体514的螺纹盲孔516螺纹连接,螺杆501的止转抵挡部504一侧的端面轴向抵挡止转垫500,止转垫500的止转垫凸台511插入附体512的止转圆孔515中约束止转垫500相对附体512旋转,螺杆501将母体514、附体512和止转垫500紧固连接在一起。
止转套508安装在螺杆501的止转抵挡部504外,止转套508的止转凸台509插入止转垫500的垫片圆止转通孔510中约束止转套508相对止转垫500旋转。
实施例20
如图37、图38所示,一种紧固连接组件,包括螺杆661、止转套662、止转垫663。
螺杆661包括依次排列的外螺纹部664和外齿轮形状的止转抵挡部665,止转抵挡部665径向凸出外螺纹部664。止转抵挡部665的外周设有多个均匀周向排列、齿齿相连且圆滑过渡(未示出)的尖角圆滑过渡(未示出)的三角形齿,一个三角形齿形成一个螺杆止转部666。止转抵挡部665背离外螺纹部664的端面上设有用来安装和拆卸螺杆661的内六角形的螺丝批孔667。
止转套662包括环状的止转套本体668,止转套本体668的轴心位置设有与止转抵挡部665配合的轴向的止转通孔669,在止转套本体668的一个端面上轴向凸出一个柱状的止转凸台670,止转凸台670的抵挡位置在周向方向、朝向螺杆旋松方向。
。止转通孔669的孔壁为与止转抵挡部665的外齿轮形状间隙配合的内齿轮形状的孔,在止转通孔669的孔壁上设有周向均布的三个圆弧形的胶槽671,在止转通孔669不设有胶槽671的孔壁上设有多个均匀周向排列的三角形槽,止转通孔669的孔壁上的单个三角形槽形成一个与螺杆止转部666配合的止转套内止转部672。
止转垫663轴心位置设有与螺杆661的外螺纹部664间隙配合的圆中心通孔673,止转垫663的端面设有一个与止转套662的止转凸台670间隙配合的垫片圆止转通孔674,止转垫663的一个端面上喷涂有很多个增大摩擦的摩擦凸粒675。
紧固连接结构包括上述的紧固连接组件、母体676、附体677。
附体677上设有与螺杆661的外螺纹部664配合的通孔678,附体677的硬度小于止转垫663上的摩擦凸粒675上的硬度。
母体676上设有与螺杆661的外螺纹部664螺纹配合的螺纹盲孔679。
螺杆661的外螺纹部664依次穿过止转垫663的中心通孔673、附体677上的通孔678与母体676上的螺纹盲孔679螺纹连接,螺杆661旋入的过程中止转垫663的摩擦凸粒675嵌入附体677内、与附体677表面产生很大的摩擦力约束止转垫663相对附体677旋转,螺杆661将母体676与附体677、止转垫663紧固连接在一起。
止转套662安装在螺杆661的止转抵挡部665外,将止转套662的止转凸台670插入垫片圆止转通孔674中,由于垫片圆止转通孔674的直径大于止转凸台670的直径,提供了一个微调空间,使止转套662的止转套内止转部672与螺杆661的螺杆止转部666能够正对,从而将止转套本体668安装在螺杆661的止转抵挡部665外,三角形齿的螺杆止转部666插入相应的三角形槽的止转套内止转部672内,在胶槽671与胶槽671相邻的螺杆止转部666和止转套内止转部672的间隙间填充有固定胶680,固定胶680将止转套662与螺杆661的止转抵挡部665固定在一起,从而对止转套662背离附体677的一侧轴向限位。止转凸台670在朝向螺杆旋松方向的一侧被垫片圆止转通孔674抵挡、螺杆661穿过止转垫663的中心通孔673共同约束止转套2相对止转套662相对止转垫663旋转,止转垫663的摩擦凸粒675嵌入附体677内约束止转垫663相对附体677旋转,母体676和附体677无相对旋转,因此螺杆661不可旋转地与母体676、附体677和止转垫663安装在一起。
实施例21
如图39、图40所示,与实施例20不同的是,螺杆691包括外螺纹部692、外齿轮形状的止转抵挡部702和带有倒角的圆柱形的限位抵挡部694。
止转套695包括环状的止转套本体696,在止转套本体696的轴心位置设有中心通孔697,在中心通孔697的孔壁上均匀分布三个抵挡止转部698。每个抵挡止转部698包括从中心通孔697的孔壁径向向内形成的水平凸部699、轴向向上再径向向内再轴向下形成的U形弹性臂700、从U形弹性臂700的端部径向向内形成的抵挡部701、在三个抵挡部701的内侧面上设有与螺杆691外齿轮形状的止转抵挡部702部分配合的内齿轮形状的多个均匀周向排列的三角形槽,抵挡部701的内侧面上的单个三角形槽形成一个与螺杆止转部703配合的止转套内止转部704,三个抵挡部701的内侧面上的三角形槽的槽壁围合形成非闭合的止转通孔。止转套695背离U形弹性臂700的端面上轴向凸出一个止转凸台705。
将止转套695的止转凸台705部分插入垫片圆止转通孔706中,止转套695的U形弹性臂700通过弹性变形置于螺杆691的止转抵挡部702外且止转套695的止转凸台705继续插入垫片圆止转通孔706中,止转套695的抵挡部701被螺杆691的限位抵挡部694朝向附体707的端面抵挡对止转套695背离附体707的一侧轴向限位。止转套695的止转凸台705伸入垫片圆止转通孔706内约束止转套695相对垫片旋转,止转垫708的摩擦凸粒709嵌入附 体707内约束止转垫708相对附体707旋转,母体710和附体707无相对旋转,因此螺杆691不可旋转地与母体710、附体707和止转垫708安装在一起。
本实施例无需胶固定止转套695,也无需限位件对止转套695轴向限位,且通过止转套695上的抵挡部701与螺杆691的限位抵挡部694配合,在使用过程中,能确保止转套695不会与螺杆691松脱,从而确保螺杆691不会和母体710、附体707松脱。
实施例22
如图41所示,与实施例21不同的是,止转垫721上设有五个均匀分布的垫片止转通孔722,每个垫片止转通孔722以止转垫721的轴心为圆心相隔15°设置。
止转套723的U形弹性臂724通过弹性变形置于螺杆725的止转抵挡部726外,止转套723的止转凸台插入其中一个垫片止转通孔722中,止转套723的止转凸台与垫片止转通孔722配合约束止转套723相对止转垫721旋转。设有多个垫片止转通孔722,便于调节止转套723相对止转垫721的安装角度,在安装止转垫721时,更易于使螺杆725的螺杆止转部726与止转套723的止转套内止转部726正对,便于将止转套723安装在螺杆725外。
实施例23
如图42、图43所示,与实施例21不同的是,止转套741上所述的止转凸台742为沿止转套741外周背离U形弹性臂743凸设的板条状凸条,止转凸台742朝向止转套741的轴心的内侧面为一止转用平面。
止转垫745为带倒角的四方形,四个外侧面与止转凸台742间隙配合,为直线垂直切割面,止转垫745的外侧面到止转垫745的中心通孔747轴心的最小距离稍小于止转凸台742朝向止转套741的轴心的内侧面的最小距离。止转套741的U形弹性臂743通过弹性变形使抵挡部置于螺杆748的止转抵挡部746外,止转套741的止转凸台742的内侧面与止转垫745的外侧面配合,止转套741的止转凸台742被止转垫745的外侧面抵挡约束止转套741相对止转垫745旋转。
实施例24
如图44至图46所示,与实施例21不同的是,紧固连接组件还包括螺母止转垫791。
锁紧螺母792为阶梯形,包括正六角形的夹持部793、和从夹持部793的端面凸设的定位部794及止转凸台795,锁紧螺母792轴心位置设有与螺杆796的外螺纹部797配合的螺纹通孔798。定位部794设置在夹持部793的轴心位置,止转凸台795设置在定位部794的外周。
螺母止转垫791轴心位置设有与锁紧螺母792的定位部794外周间隙配合的圆中心通孔799,螺母止转垫791的端面设有一个与螺母的止转凸台795间隙配合的止转螺母圆通孔800。螺母止转垫791的两个端面均为光滑的面,不设有用来增大摩擦的摩擦颗粒或嵌入凸起等。
螺杆796依次包括外螺纹部797、光杆部801、止转抵挡部802、夹持部824,止转抵挡部802包括止转部803和与光杆部801相连、避空用的圆柱形的抵挡部804,抵挡部804径向凸出光杆部801,止转部803径向凸出抵挡部804和夹持部824。
止转套805包括环状的止转套本体806,在止转套本体806的轴心位置设有中心通孔807,沿止转套本体806的外周和内周同向延伸设有相同高度的外凸环808和内凸环809,在内凸环809上沿内凸环809的顶面向内径向凸设有三个抵挡部810,沿每个抵挡部810的周向两侧、以中心通孔807轴心为中心点设有切开内凸环809并部分切开止转套本体806的放射状的直线切槽812,与抵挡部810相连的内凸环809和止转套本体806形成弹性臂811。在抵挡部810的内侧面上设有与螺杆796外齿轮形状的止转抵挡部802部分配合的内齿轮形状的多个均匀周向排列的三角形槽,内凸环809内侧面上的单个三角形槽形成一个与螺杆止转部813配合的止转套内止转部814,内凸环809内侧面上的三角形槽的槽壁围合形成非闭合的止转通孔815。在止转套本体806朝向内凸环809的一侧、内凸环809和外凸环808之间轴向凸出一个止转凸台816。
止转垫817轴心位置设有与螺杆796的外螺纹部797间隙配合的圆中心通孔818,止转垫817的端面设有一个与止转套805的止转凸台816间隙配合的垫片圆止转通孔819。止转垫817的两个端面均为光滑的面,不设有用来增大摩擦的摩擦颗粒或嵌入凸起等。
在螺母止转垫791的一个端面上涂满胶,锁紧螺母792的定位部794从螺母止转垫791未涂有胶的端面伸入螺母止转垫791的圆中心通孔799、止转凸台795伸入螺母止转垫791的止转螺母圆通孔800内,将螺母止转垫791套在锁紧螺母792上。
在止转垫817的一个端面上涂满胶,螺杆796的外螺纹部797从止转垫817未涂有胶的端面依次穿过止转垫817的圆中心通孔818、附体820上的通孔821与母体822上的通孔823与锁紧螺母792螺纹连接;螺杆796和锁紧螺母792将螺母止转垫791、母体822与附体820、 止转垫817紧固连接在一起。螺杆796旋入的过程中止转垫817与附体820表面粘合在一起、与附体820表面产生很大的粘合力约束止转垫817相对附体820旋转,螺母止转垫791与母体822表面粘合在一起、与母体822表面产生很大的粘合力约束螺母止转垫791相对母体822旋转,止转凸台795伸入螺母止转垫791的止转螺母圆通孔800约束锁紧螺母792相对螺母止转垫791旋转,锁紧螺母792、螺母止转垫791、止转垫817相对母体822和附体820均不可转动。
止转套805置于螺杆796的止转部803外、止转套805的弹性臂811通过弹性变形置于螺杆796的光杆部801外且止转套805的止转凸台816插入止转垫817的垫片圆止转通孔815中,止转套805的抵挡部810被螺杆796的止转部803朝向附体820的端面抵挡对止转套805背离附体820的一侧轴向限位。
实施例25
如图47所示,与实施例24不同的是,止转垫1050为两侧为外圆弧的长方形。螺母止转垫1051的外周包括连接关于中心轴对称的两圆弧面1052,连接两圆弧面的平行的两平面1053。
实施例26
如图48至图50所示,与实施例9不同的是,沿止转通孔1061的外周周向均布三个方形的避空通孔1062,在止转套1063的外周设有三个夹持槽1064。止转通孔1061为闭合的内齿轮形孔。
限位件1065包括圆环状的限位件本体1066,在限位件本体1066的中心位置设有中心通孔1067,中心通孔1067的最小孔径大于止转通孔1061的最大孔径。在中心通孔1067的孔壁周向均布三个凹槽1068,垂直限位件本体1066的端面、对应每个凹槽1068均同侧设有与每个凹槽1068的底面齐平的第一弹性臂1069,沿第一弹性臂1069端部向中心通孔1067的轴心圆弧弯曲的弧形弹性臂1070,沿弧形弹性臂1070的端部再垂直向下形成第二弹性臂1071,在第二弹性臂1071的端部向中心通孔1067轴心水平弯折形成限位部1073。第一弹性臂1069、第二弹性臂1071关于弧形弹性臂1070的轴心线对称。第一弹性臂1069、弧形弹性臂1070、第二弹性臂1071形成U形弹性臂1072。限位部1073与限位件本体1066在同一平面。限位件本体1066的外径小于止转套1063的外径。U形弹性臂1072与避空通孔1062配合。
将止转套1063的止转通孔1061轴线与限位件1065的中心通孔1067的轴线位置关系对应,限位件1065上的三个U形弹性臂1072分别安装在止转套1063上的三个避空通孔1062内,限位件本体1066的端面与止转套1063的端面碰焊在一起。限位件1065的限位部1073径向凸出止转套1063的止转通孔1061。限位件1065的第一弹性臂1069和第二弹性臂1071之间的距离大于限位件1065的限位部1073凸出止转套1063的止转通孔1061的孔壁的长度,以提供变形空间。
止转套1063与限位件1065一同安装在螺杆1074的止转部1075外,且止转套1063的止转凸台(未示出)插入附体1077的止转圆孔(未示出),限位件1065的U形弹性臂1072通过弹性变形使限位部1073插入止转部1075与抵挡部1076形成的限位部1073容置空间内、并被止转部1075朝向抵挡部1076的端面抵挡、对止转套1063背离附体1077的一侧轴向限位。
实施例27
如图51至图53所示,与实施例26不同的是,限位件包括三个结构相同的弹性限位件1091。弹性限位件1091由长条状的金属片弯折而成。弹性限位件1091包括水平的限位部1092,垂直限位部1092弯折而成的第一弹性臂1093、沿第一弹性臂1093端部向限位部1092方向水平弯折、再背离限位部1092方向反向斜向上弯折、再圆弧过渡反向斜向下弯折、再朝向限位部1092方向水平弯折而成的卡扣1094,再沿卡扣1094端部垂直向下弯折而成的第二弹性臂1095,再沿第二弹性臂1095的端部背离限位部1092方向水平弯折而成的抵挡部1096,抵挡部1096和限位部1092位于同一个平面。卡扣1094的两水平部1097位于同一个平面。限位部1092与相应的卡扣1094的水平部1097之间的距离稍大于止转套1098的厚度。
将弹性限位件1091的限位部1092朝向止转套1098的轴心、并将卡扣1094穿过止转套1098上的避空通孔1099将弹性限位件1091与止转套1098安装在一起,弹性限位件1091的限位部1092径向凸出止转套1098的止转通孔的孔壁,弹性限位件1091的两弹性臂之间的距离大于弹性限位件1091的限位部1092凸出止转套1098的止转通孔的孔壁的长度,以提供变形空间。以同样的方式将另外两个弹性限位件1091与止转套1098安装在一起。
止转套1098与安装在一起的三个弹性限位件1091一同安装在螺杆1100的止转部1101外,且止转套1098的止转凸台(未示出)插入附体1102的止转圆孔(未示出)中,弹性限位件1091的卡扣1094和第一弹性臂1093通过弹性变形使限位部1092插入止转部1101与抵挡部1103形成的限位部1092容置空间内、并被止转部1101朝向抵挡部1103的端面抵挡、对止转套1098背离附体1102的一侧轴向限位。
实施例28
如图54所示,与实施例27不同的是,在每个弹性限位件1241的抵挡部1242背离卡扣1243的一侧设有三个以上的垫高凸起1244,限位部1245和抵挡部1242在同一个平面上。垫高凸起1244使限位部1245与附体(未示出)和止转套(未示出)间隙配合,在将止转限位组件安装在螺杆(未示出)的止转抵挡部1242上的过程中,第一弹性臂1246和卡扣1243弹性变形时,便于限位部1245在止转套与附体间运动。
卡扣1243与抵挡部1242之间的距离等于止转套的厚度,从卡扣1243的最顶端向限位件的方向两侧逐步缩小,这种结构的弹性限位件1241,第二弹性臂1247与止转套的避空通孔紧配合,在卡扣1243和第一弹性臂1246没有弹性变形时,弹性限位件1241不会相对止转套发生位移,在紧固连接结构处于剧烈震动的环境下,可大大降低噪音,且便于止转限位组件安装在螺杆的止转抵挡部1242外;第一弹性臂1246与避空通孔间隙配合,在将止转限位组件安装在螺杆上过程中,第一弹性臂1246和卡扣1243弹性变形时,第一弹性臂1246可在避空通孔内自由运动,使限位部1245更易伸入限位部容置空间内。
实施例29
如图55所示,与实施例26不同的是,从弧形弹性臂1261的最顶端向限位件的方向两侧逐步缩小,这种结构的限位件,第一弹性臂1262、与第一弹性臂1262相接的半个弧形弹性臂1261与止转套(未示出)的避空通孔(未示出)紧配合,与第二弹性臂1263相接的半个弧形弹性臂1261、第二弹性臂1263与避空通孔间隙配合,这样在弧形弹性臂1261和第二弹性臂1263没有弹性变形时,限位件不会相对止转套发生位移,在紧固连接结构处于剧烈震动的环境下,可大大降低噪音,且便于止转限位组件安装在螺杆(未示出)的止转抵挡部(未示出)外;在将止转限位组件安装在螺杆上过程中,弧形弹性臂1261和第二弹性臂1263弹性变形时,半个弧形弹性臂1261和第二弹性臂1263弹性可在避空通孔内自由运动,使限位部更易伸入限位部容置空间内。
实施例30
如图56、图57所示,曲轴连杆机构包括紧固连接组件、曲轴1281、连杆组。
紧固连接组件与实施例2不同的是还包括外正六角形的锁紧螺母1282。
连杆组包括连杆体1283、连杆大头盖1284、连杆大头轴瓦1285。连杆体1283包括连杆大头1286和连杆小头1287。连杆大头1286上设有与螺杆1288的外螺纹部1289配合的通孔1290,连杆大头盖1284上设有与螺杆1288的外螺纹部1289配合的通孔1291。在连杆大头1286背离连杆大头盖1284的一侧设有与止转套1292的止转凸台1293配合的圆形的大头止转孔1294。
连杆大头轴瓦1285合抱在曲轴1281外,连杆大头1286和连杆大头盖1284合抱在连杆大头轴瓦1285外;螺杆1288的外螺纹部1289依次穿过连杆大头1286的通孔1290、连杆大头盖1284上的通孔1291与的锁紧螺母1282螺纹连接,锁紧螺母1282的外周的一个平面被连杆大头盖1284的一侧壁抵挡约束锁紧螺母1282相对连杆大头盖1284旋转,螺杆1288和锁紧螺母1282将连杆大头1286和连杆大头盖1284紧固连接在一起。
止转套1292安装在螺杆1288的止转抵挡部1295外,止转套1292的止转凸台1293的抵挡位置靠近或与大头止转孔1294接触、止转套1292的止转凸台1293插入大头止转孔1294中,抵挡螺母1296安装在螺杆1288的外螺纹部1289上,抵挡螺母1296对止转套1292背离连杆大头1286的一侧轴向限位。止转套1292止转凸台1293在螺杆1288的旋松方向被大头止转孔1294抵挡约束止转套1292相对连杆大头1286旋转,螺杆止转部1297与止转套内止转部1298配合约束止转套1292相对螺杆1288相旋转,连杆大头盖1284和连杆大头1286无相对旋转,因此螺杆1288不可旋转地与连杆大头盖1284和连杆大头1286安装在一起。
对于本发明,止转套上的止转套止转凸台可为两个或两个以上,在附体上设有与止转套止转凸台一一配合的附体止转孔;附体止转孔也可是止转套止转凸台的整数倍;根据本发明的实施例,本领域的技术人员不需任何创造性劳动就可实现,故不再用具体的实施方式说明。

Claims (21)

  1. 一种紧固连接结构,包括紧固连接组件、母体、附体;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;螺杆穿过附体上的通孔与母体的孔安装在一起;
    其特征在于:紧固连接组件还包括止转套;
    螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
    在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;
    附体上背离母体的一侧设有与止转套止转凸台间隙配合的附体止转孔;
    止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入附体止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被附体止转孔抵挡约束止转套相对附体旋转;
    螺杆不可旋转地与母体、附体安装在一起。
  2. 一种紧固连接结构,包括紧固连接组件、母体、附体;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;
    其特征在于:紧固连接组件还包括止转套、止转垫;
    螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
    在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;
    在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫朝向附体的端面上凸设有止转垫止转凸台;
    止转套止转凸台的高度小于或等于止转垫的厚度,在附体上设有与止转垫止转凸台配合的附体止转孔;
    螺杆穿过止转垫的通孔、附体上的通孔与母体的孔安装在一起;
    止转垫止转凸台插入附体止转孔内约束止转垫相对附体旋转;
    止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入止转垫止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被止转垫止转孔抵挡约束止转套相对止转垫旋转;
    螺杆不可旋转地与母体、附体、止转垫安装在一起。
  3. 一种止转结构,其特征在于:止转结构包括止转套,止转套为环状,在止转套上仅设有一个轴向的止转通孔,在止转通孔的孔壁上设有周向均匀排列、轴向的止转套内止转部;在止转套的一个端面上轴向凸设有与附体止转孔和/或止转垫止转孔配合、约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向。
  4. 如权利要求3所述的一种止转结构,其特征在于:止转套止转凸台的高度大于止转套内止转部的轴线长度。
  5. 如权利要求3所述的一种止转结构,其特征在于:还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫朝向附体的端面上、轴向凸设有与附体止转孔配合的止转垫止转凸台;止转套止转凸台的高度小于或等于止转垫的厚度。
  6. 如权利要求3所述的一种止转结构,其特征在于:还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;在止转垫背离止转套的一侧设有嵌入部或喷涂有摩擦颗粒;所述的嵌入部为设置在止转垫的端面上的嵌入凸起、或为设置在止转垫外侧的嵌入边;止转套止转凸台的高度小于或等于止转垫的厚度。
  7. 如权利要求3所述的一种止转结构,其特征在于:所述的止转套包括环状的止转套本体,在止转套本体的轴心位置设有中心通孔,从止转套本体同侧轴向凸设有两个以上的弹性臂、弹性臂的端部径向向内形成限位部,在限位部的内侧面上设有所述的止转套内止转部,限位部设有止转套内止转部的内侧面形成非闭合的止转通孔;止转套止转凸台与限位部同侧。
  8. 如权利要求3所述的一种止转结构,其特征在于:所述的止转套还包括弹性臂;在止转套上设有与止转通孔连通、与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空槽,所述的止转通孔为非闭合的孔;弹性臂的一端与止转套背离止转套止转凸台的一侧相连,另一端朝向止转套设有止转套止转凸台的一侧、并在该端的端部径向向止转通孔的轴心设有限位部,限位部与止转通孔的轴线垂直,限位部径向凸出止转通孔;所述的弹性臂与所述的避空槽正对。
  9. 如权利要求3所述的一种止转结构,其特征在于:还包括限位件,一个止转套对应一个限位件;
    限位件包括环状的限位件本体,在限位件本体的中心位置仅设有一个中心通孔,中心通孔的最小孔径大于止转通孔的最大孔径;还包括与限位件本体相连的两个以上的弹性臂,在弹性臂端部向中心通孔轴心方向设有与限位件本体平行的限位部,限位部径向凸出中心通孔;两个以上的限位部的最小内径小于止转通孔的最小内径;
    在止转套上设有与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空空间;
    将限位件与止转套安装在一起,弹性臂与止转套的避空空间配合;限位件的限位部径向凸出止转套的止转通孔;在与限位件本体平行的方向、弹性臂最大的变形量大于限位件的限位部凸出止转套的止转通孔的孔壁的长度。
  10. 如权利要求9所述的一种止转结构,其特征在于:限位件的限位部均凸出限位件本体,限位件本体安装在止转套的一个端面上,弹性臂轴向伸入避空空间中,限位部径向伸入止转通孔中。
  11. 如权利要求9所述的一种止转结构,其特征在于:在所述的限位件的中心通孔的孔壁上设有两个以上的凹槽;所述的弹性臂包括与限位件本体相连的第一弹性臂,沿第一弹性臂端部向中心通孔的轴心弯曲的曲面弹性臂,沿曲面弹性臂的端部再垂直向下形成的第二弹性臂,所述的限位部设置在第二弹性臂的端部;第一弹性臂、曲面弹性臂、第二弹性臂形成U形弹性臂,U形弹性臂正对凹槽。
  12. 如权利要求3所述的一种止转结构,其特征在于:还包括限位件;所述的限位件包括两个以上的弹性限位件;所述的弹性限位件包括水平的限位部,垂直限位部弯折而成的第一弹性臂、沿第一弹性臂端部向限位部方向且平行限位部弯折、再背离限位部方向反向斜向上弯折、再反向斜向下弯折、再朝向限位部方向且平 行限位部弯折而成的卡扣,再沿卡扣端部向下弯折而成的第二弹性臂,再沿第二弹性臂的端部背离限位部方向平行限位部弯折而成的抵挡部;
    在止转套上设有与弹性臂配合、用来容置弹性臂且为弹性臂变形提供变形空间的避空孔;
    将弹性限位件的限位部朝向止转套的轴心、并将弹性卡扣穿过止转套上的避空通孔,通过弹性限位件一侧被卡扣抵挡、一侧被抵挡部抵挡将弹性限位件与限位件安装在一起,弹性限位件的限位部径向凸出止转套的止转通孔的孔壁,弹性限位件的两弹性臂之间的距离大于弹性限位件的限位部凸出止转套的止转通孔的孔壁的长度。
  13. 一种包含如权利要求3至6任意一项权利要求所述的止转结构的紧固连接组件,还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;其特征在于:螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
    止转套安装在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
  14. 如权利要求13所述的一种紧固连接组件,其特征在于:所述的紧固连接组件还包括限位件;在螺杆上设有卡槽;所述的限位件为卡环,所述的卡环包括非闭合的环状的卡环本体,在卡环本体的外周设有三条以上径向凸出卡环本体的限位凸条;卡环本体的内周与螺杆的卡槽底部的外周配合;限位凸条的外径大于止转套的止转通孔的最大孔径;卡环安装在卡槽内对止转套背离螺杆止转凸部的一侧轴向限位。
  15. 如权利要求13所述的一种紧固连接组件,其特征在于:所述的紧固连接组件还包括限位件;在螺杆上设有卡槽;所述的卡环由线簧弯折而成,包括与止转套背离止转套止转凸台的端面配合的非闭合的环状限位部,由环状限位部的两端向同方向弯曲的两连接部,分别由两连接部的一端平行环状限位部朝环状限位部方向弯曲的两抵挡部,两抵挡部之间的距离大于或等于卡槽的底径,小于卡槽的最大外径;卡环的两抵挡部安装在卡槽内对止转套背离螺杆止转凸部的一侧轴向限位。
  16. 一种包含如权利要求3至12任意一项权利要求所述的止转结构的紧固连接组件,还包括螺杆、锁紧螺母;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;其特征在于:螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
    在锁紧螺母的一个端面上轴向凸设有与用来约束锁紧螺母相对母体旋转的止转凸台;
    螺杆的外螺纹部与锁紧螺母螺纹连接,止转套安装在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
  17. 一种包含如权利要求7至12任意一项权利要求所述的止转结构的紧固连接组件,还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;其特征在于:螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部、与限位部配合的限位部容置空间,在限位部容置空间朝向外螺纹部的面为用来抵挡限位部的抵挡面;
    止转套安装在螺杆的止转抵挡部外,弹性臂通过弹性变形使限位部插入限位部容置空间内、并被限位部容置空间的抵挡面抵挡、对止转套背离外螺纹部的一侧轴向限位;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转。
  18. 一种包括如权利要求3、4、7至12任意一项权利要求所述的止转结构的紧固连接结构,其特征在于:还包括母体、附体、包括所述的止转结构的紧固连接组件;所述的紧固连接组件还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;附体上设有与螺杆的外螺纹部配合的通孔,母体上设有与螺杆的外螺纹部配合的孔;
    紧固连接组件还包括止转垫;在止转垫上设有与螺杆的外螺纹部配合的通孔、与止转套止转凸台间隙配合的止转垫止转孔;止转套止转凸台的高度小于或等于止转垫的厚度;
    螺杆穿过止转垫的通孔、附体上的通孔与母体的孔安装在一起;
    在止转垫背离止转套的一侧设有嵌入部,附体的硬度小于止转垫的嵌入部的硬度,止转垫的嵌入部嵌入附体内约束止转垫相对附体旋转;或在止转垫背离止转套的一侧喷涂有摩擦颗粒,止转垫的摩擦颗粒与附体间产生足够大的摩擦力约束止转垫相对附体旋转;或止转垫通过固定胶固定在附体上约束止转垫相对附体旋转;止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入止转垫止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被止转垫止转孔抵挡约束止转套相对止转垫旋转;
    螺杆不可旋转地与母体、附体、止转垫安装在一起。
  19. 如权利要求18所述的一种紧固连接结构,其特征在于:还包括锁紧螺母;在锁紧螺母的一个端面上轴向凸设有用来约束锁紧螺母相对母体旋转的止转凸台;所述的止转垫还包括螺母止转垫,所述的螺母止转垫上的止转垫止转孔与锁紧螺母的止转凸台配合;母体上与螺杆的外螺纹部配合的孔为通孔,螺杆穿过止转垫上的通孔、附体上的通孔、母体上的通孔、螺母止转垫的通孔与锁紧螺母连接;
    在螺母止转垫朝向母体的一侧设有嵌入部,母体的硬度小于螺母止转垫的嵌入部的硬度,螺母止转垫的嵌入部嵌入母体内约束螺母止转垫相对母体旋转;或在螺母止转垫朝向母体的一侧喷涂有摩擦颗粒,螺母止转垫的摩擦颗粒与母体间产生足够大的摩擦力约束螺母止转垫相对母体旋转;或螺母止转垫通过固定胶固定在母体上约束螺母止转垫相对母体旋转;
    锁紧螺母的止转凸台插入螺母止转垫的止转垫止转孔内约束锁紧螺母相对螺母止转垫旋转;
    锁紧螺母不可旋转地与母体安装在一起。
  20. 一种包括如权利要求3、4、7至12任意一项权利要求所述的止转结构的紧固连接结构,其特征在于:还包括母体、附体、包括所述的止转结构的紧固连接组件;
    所述的紧固连接组件还包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;
    所述的母体与附体为一体式结构,形成带断口的环形体;在所述的环形体的断口的两端分别同向设有相对的第一安装部与第二安装部;
    在第一安装部上设有与所述的螺杆的外螺纹部配合的通孔,在所述的第二安装部上设有与所述的螺杆配合、且与第一安装部上的通孔相对应的孔;螺杆的外螺纹部穿过第一安装部上的通孔与第二安装部的孔安装在一起;
    第一安装部上背离第二安装部的一侧设有与止转套止转凸台间隙配合的第一安装部止转孔;
    止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入第一安装部止转孔内,且止转套被轴向限位在螺杆的止转抵挡部外;螺杆止转部与止转套内止转部配合约束螺杆相对止转套旋转,止转套止转凸台在朝向螺杆旋松方向的一侧被第一安装部止转孔抵挡约束止转套相对第一安装部旋转;
    螺杆不可旋转地与第二安装部、第一安装部安装在一起。
  21. 一种曲轴连杆机构,包括曲轴、连杆组、紧固连接组件;连杆组包括连杆体、连杆大头盖、连杆大头轴瓦;紧固连接组件包括螺杆;螺杆包括外螺纹部、止转抵挡部,止转抵挡部径向凸出外螺纹部;连杆体包括连杆大头和连杆小头,连杆大头上设有与螺杆的外螺纹部配合的通孔;连杆大头盖上设有与螺杆的外螺纹部配合的孔;
    其特征在于:紧固连接组件还包括止转套、限位件;
    螺杆的止转抵挡部的外周设有周向均匀排列、轴向的螺杆止转部;
    在止转套上仅设有一个轴向的止转通孔,止转通孔的孔壁上设有与螺杆止转部配合的止转套内止转部;在止转套的一个端面上轴向凸设有约束止转套朝螺杆旋松方向旋转的止转套止转凸台,止转套止转凸台的抵挡位置在周向方向、朝向螺杆旋松方向;
    在连杆大头背离连杆大头盖的一侧设有与止转套的止凸部配合的大头止转孔;连杆大头轴瓦合抱在曲轴外,连杆大头和连杆大头盖合抱在连杆大头轴瓦外;螺杆的外螺纹部依次穿过连杆大头的通孔与连杆大头盖上的孔安装在一起;
    止转套安装在螺杆的止转抵挡部外,止转套止转凸台插入大头止转孔中,限位件安装在螺杆上对止转套背离螺杆大头的一侧轴向限位;螺杆止转部与止转套内止转部配合约束止转套相对螺杆相旋转,止转套止转凸台在螺杆的旋松方向被大头止转孔抵挡约束止转套相对连杆大头旋转,连杆大头盖和连杆大头无相对旋转,螺杆不可旋转地与连杆大头盖和连杆大头安装在一起。
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CN109373157A (zh) * 2018-11-16 2019-02-22 江苏斯菲尔电气股份有限公司 一种辅助安装架及包含其的电子装置安装机构
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CN112986004A (zh) * 2021-02-09 2021-06-18 中国科学院金属研究所 拉压双向高温蠕变持久试验机
CN113359244A (zh) * 2021-07-06 2021-09-07 四川天邑康和通信股份有限公司 一种光纤熔接方便的光纤接头盒
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CN114673723A (zh) * 2022-04-01 2022-06-28 广东安百利卫浴科技有限公司 一种紧固装置
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CN114278659A (zh) * 2018-04-09 2022-04-05 北京星际荣耀空间科技股份有限公司 一种螺纹止动结构
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CN109373157A (zh) * 2018-11-16 2019-02-22 江苏斯菲尔电气股份有限公司 一种辅助安装架及包含其的电子装置安装机构
CN109554962A (zh) * 2018-12-27 2019-04-02 中国铁建重工集团有限公司 螺栓防松组件和道岔
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CN112483585A (zh) * 2019-09-11 2021-03-12 郑州宇通客车股份有限公司 一种变阻尼减振器及悬架结构和变阻尼减振器安装总成
CN112986004B (zh) * 2021-02-09 2022-09-09 中国科学院金属研究所 拉压双向高温蠕变持久试验机
CN112986004A (zh) * 2021-02-09 2021-06-18 中国科学院金属研究所 拉压双向高温蠕变持久试验机
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CN115126763B (zh) * 2021-03-25 2023-07-11 广东东箭汽车科技股份有限公司 垫片
CN113700751A (zh) * 2021-06-11 2021-11-26 江西昌河航空工业有限公司 一种旋盖式关节轴承的锁紧装置及方法
CN113700751B (zh) * 2021-06-11 2023-01-06 江西昌河航空工业有限公司 一种旋盖式关节轴承的锁紧装置及方法
CN113359244B (zh) * 2021-07-06 2022-10-14 四川天邑康和通信股份有限公司 一种光纤熔接方便的光纤接头盒
CN113359244A (zh) * 2021-07-06 2021-09-07 四川天邑康和通信股份有限公司 一种光纤熔接方便的光纤接头盒
CN114673723A (zh) * 2022-04-01 2022-06-28 广东安百利卫浴科技有限公司 一种紧固装置
CN114673723B (zh) * 2022-04-01 2023-12-26 广东安百利卫浴科技有限公司 一种紧固装置

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