WO2016019916A1 - 一种收缩连接组件、收缩连接结构及连接方法 - Google Patents

一种收缩连接组件、收缩连接结构及连接方法 Download PDF

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Publication number
WO2016019916A1
WO2016019916A1 PCT/CN2015/086416 CN2015086416W WO2016019916A1 WO 2016019916 A1 WO2016019916 A1 WO 2016019916A1 CN 2015086416 W CN2015086416 W CN 2015086416W WO 2016019916 A1 WO2016019916 A1 WO 2016019916A1
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WIPO (PCT)
Prior art keywords
sleeve
shrink
core rod
shrink sleeve
wedge
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PCT/CN2015/086416
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English (en)
French (fr)
Inventor
杨东佐
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杨东佐
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Application filed by 杨东佐 filed Critical 杨东佐
Publication of WO2016019916A1 publication Critical patent/WO2016019916A1/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
    • F16B4/00Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings

Definitions

  • the invention relates to a shrink connection assembly, a shrink connection structure and a connection method which can replace two or more objects in a mechanical and static connection instead of a nut and a bolt connection, in particular to a detachable mechanical static joint aircraft, a ship, a device, an aerospace Equipment, aircraft carriers, spacecraft, rockets, engines, nuclear reactors, trains, high-speed rail, railroad tracks, steel structures, steel bridges, automobiles, etc. High-demand, harsh environment or load-bearing mechanical parts Shrinkage connection assembly, shrink connection structure and connection method.
  • the existing detachable mechanical static joints are generally threaded connections, keyed connections, pinned connections, expanded screw connections, etc., the most widely used being threaded connections.
  • the threaded connection of the nut and bolt needs to be tightened.
  • the connection force between the threaded nut and the bolt is mainly manifested by the static friction generated by the pre-tightening force when tightening the thread and the bolt. Therefore, for the threaded connection of key objects, the preload force must be controlled to ensure the reliability of the work.
  • the second is the failure of the threaded connection caused by common fatigue damage.
  • the threaded connection is subjected to an alternating load and the pre-tightening force in the connection causes the connection to be loose.
  • the cyclic alternating load acts on the bolts that are only connected, the bolts are fatigue cracked or even broken due to the large alternating stress. Fatigue failure usually occurs in areas where stress concentration is severe, such as: screw head, thread closing end, thread at the screw support plane, and transition corners of the screw.
  • the third is the creep that causes the threaded connection to fail at high temperatures.
  • Creep refers to the slow plastic deformation of a metal material over a long period of time under constant temperature and constant stress. Creep can occur at stresses that are less than the yield limit of the material. At low temperatures, the creep is not obvious, and only when a certain temperature (about 3/10 of the melting temperature of the material) is reached becomes significant. Creep can cause failure of the threaded connection at high temperatures. In order to eliminate creep, compensation measures are taken when the connection is assembled at room temperature, such as increasing the preload, or pre-tightening the bolts.
  • fretting wear causes failure of the threaded connection. Fretting wear is caused by a surface that is subjected to heavy loads and with little relative motion on the other surface. Threaded connections that carry vibration are most susceptible to fretting wear.
  • the existing anti-loosening of the threaded connection is to prevent loosening by using additional static friction force, such as adding a spring washer, or using the top effect of the two nuts in the case of low speed heavy load, that is, the top nut is loosened, or in the nut.
  • additional static friction force such as adding a spring washer
  • top effect of the two nuts in the case of low speed heavy load, that is, the top nut is loosened, or in the nut.
  • third is the most important anti-loose method, which is to improve the tensile strength of bolts and nuts, from 4.9, 8.8, 10.9, Levels 12.9 and 14.9 have been continuously improved.
  • connection between the objects relies on static friction, which cannot fundamentally solve the failure of the above-mentioned threaded connections, such as screw breaking, broken ends, thread crushing and shearing. , after the wear of the slider, etc.
  • the technical problem to be solved by the present invention is to overcome the problems in the threaded connection technology of the nuts and bolts of the detachable mechanical static coupling which are widely used in the world. That is to say, ordinary nuts and bolts rely on static friction to connect objects together. In the case of large loads, especially in the case of large axial loads or large vibrations or high temperature or high temperature cross-changes, the connection of the above structures is prone to failure and cause accidents.
  • the present invention provides a shrink connection assembly, a shrink connection structure, and a connection method, which are connected together by an abutting force in an axial direction, even when the load is particularly large, particularly an axial load is particularly large. Or the vibration is particularly large, or the high temperature or high and low temperature cross change and other harsh occasions, the connection will not fail, the connection is very reliable, and can be used instead of the bolt and nut.
  • a shrink connection assembly embodying the present invention comprises a shrink sleeve composed of a contraction member connecting two or more flaps and a core rod, and a sleeve for driving the shrink sleeve to shrink, and the sleeve and the sleeve are completely contracted to prevent the sleeve and a stop mechanism for loosening the sleeve;
  • the connecting core rod includes a connecting core rod body and a separate annular wedge-shaped resisting portion protruding radially on the outer circumference of the connecting core rod body; forming a positioning resisting portion on the connecting core rod body;
  • the shrinking member includes a shrinking body, a wedge-shaped resisting groove disposed on the inner side of the shrinking body and engaging with the wedge-shaped abutting portion, and a shrinking tapered surface disposed on the outer side of the shrinking body for driving the shrink sleeve to contract;
  • a connecting core rod accommodating space is disposed in the shrink sleeve;
  • the wedge-shaped resisting groove is disposed on the wall connecting the core rod accommodating space; and the wedge-shaped resisting groove in the shrink sleeve forms a broken independent ring shape;
  • a shrink sleeve receiving space is disposed in the sleeve, and a driving cone surface matching the shrinking taper surface of each of the flap shrink members is disposed on the wall of the shrink sleeve receiving space.
  • the single wedge-shaped abutting portion includes a guiding portion, a resisting portion connected to the guiding portion, a connecting abutting portion and a connecting portion connecting the core rod body, the resisting portion is perpendicular to the axis of the connecting core rod;
  • the single wedge-shaped resisting groove includes and
  • the connecting sleeves of the shrink sleeves are connected to the two guiding surfaces of the space wall, and the two vertical surfaces which are connected to the two guiding surfaces and perpendicular to the axis of the shrink sleeve, connect the connecting surfaces of the two vertical surfaces; the shrink sleeve is fully contracted.
  • the guiding section is matched with the clearance surface of the escaping, the resisting section is resisted by the vertical surface, and the connecting section is matched with the two guiding surfaces.
  • the height of the wedge-shaped resisting portion protruding from the connecting rod body is smaller than the depth of the wedge-shaped abutting groove; in the fully contracted state of the shrink sleeve, the connecting core body is tightly fitted with the connecting core-receiving space wall of the shrink sleeve.
  • the wedge-shaped abutting portion and the wedge-shaped abutting groove of the structure are connected to the receiving force completely in the axial direction, and the surface-to-surface resisting effect is better.
  • the connecting core body and the connecting core rod accommodating space wall of the shrink sleeve can be tightly matched to generate static friction force, so that the connecting force of the shrink sleeve and the connecting core rod includes not only the resisting force but also the static friction force, and the wedge-shaped resisting portion is reduced. The force is applied and the connection effect is better.
  • the shape of the single wedge-shaped abutting portion on the cross section passing through the axis is a pointed shape or a trapezoidal shape or an arc shape;
  • the shape of the wedge-shaped resisting groove on the cross section passing through the axis is a pointed shape or a trapezoidal shape which is matched with the wedge-shaped resisting portion or The curved shape;
  • the wedge-shaped abutting portion and the wedge-shaped abutting groove are in contact with the two inclined surface faces of the pointed shape or the two inclined faces of the trapezoid, or are contacted by the curved surface.
  • the tapered wedge-shaped abutting portion and the wedge-shaped abutting groove, or the trapezoidal wedge-shaped abutting portion and the wedge-shaped abutting groove, or the curved wedge-shaped abutting portion and the wedge-shaped abutting groove can make the axial connection of the connected member and the shrink sleeve completely free of gaps. Reduce machining accuracy.
  • the connecting core rod further comprises a straight light rod portion connected to the big end of the driving cone surface, the axial length of the straight light rod portion is larger than the axial length of the driving cone surface; and the shrink sleeve is completely contracted, and the connecting rod is connected There is a set distance between the driving taper surface and the corresponding shrinking taper on the shrink sleeve in the axial direction.
  • the inner spring is further provided, and an inner spring accommodating groove is radially disposed on the wall of the connecting core connecting space of the shrink sleeve and the connecting core rod, and the shrink sleeve is not mounted to the connecting core rod.
  • the shrink sleeve is installed in the sleeve, and the shrink sleeve is resisted in the sleeve by the elastic force of the inner spring radially outward, and the inner spring is completely accommodated in the inner spring receiving groove.
  • the shrink sleeve and the sleeve are installed together at the factory before the shrink sleeve is yet mounted on the connecting mandrel, and will not be scattered during transportation.
  • the shrink sleeve and sleeve that are installed together are equivalent to nuts and connecting cores.
  • the rod is equivalent to a screw.
  • the connecting rod is provided with one end of the wedge-shaped abutting portion through the connected member, and the shrink sleeve and the sleeve which are mounted together are mounted on the connecting core rod, and the installation is very convenient.
  • the outer spring is further provided with an outer spring receiving groove radially on the outer peripheral surface of each of the contracting members, and the contracting members of the two or more flaps are held together by the outer spring to form a shrink sleeve, and the outer spring is completely accommodated. Placed in the outer spring receiving groove.
  • the outer spring is used to install the shrinking parts of two or more flaps to form a shrink sleeve so as not to be separated.
  • the shrink sleeve is assembled at the factory and does not spread during transportation, and is convenient, quick and simple to use.
  • the limiting mechanism is a thread locking mechanism, comprising a threaded portion axially disposed on the connecting core body and a threaded hole disposed on the sleeve and communicating with the shrink sleeve receiving space; the threaded hole of the sleeve Cooperating with the threaded portion of the core rod to fix the sleeve on the connecting core rod, thereby locking and fixing the shrink sleeve in the sleeve and connecting the core rod in a state in which the shrink sleeve is fully contracted.
  • the outer peripheral surface of the sleeve provided with the threaded hole is generally hexagonal.
  • the threaded hole of the shrink sleeve cooperates with the threaded portion of the connecting mandrel, which is particularly convenient to install. It is only necessary to pass the connecting core rod through the connected piece, and then install the shrink sleeve and the sleeve on the connecting core rod, rotate the sleeve, and sleeve.
  • the barrel drive shrink sleeve shrinks so that the joints can be joined together by the shrink connection assembly.
  • a wedge-shaped abutting portion and a threaded portion are arranged on the connecting core rod, which can be completed in one clamping process, thereby reducing the cost; the threaded hole on the sleeve is also convenient to process, and the processing cost is also low.
  • the shrink sleeve housing space includes a driving taper surface and a column hole connected to the large end of the driving taper surface, and a resisting portion is radially protruded on the hole wall of the column hole of the shrink sleeve receiving space;
  • the shrink sleeve The utility model further comprises a cylinder surface which is connected with the large end of the shrinking conical surface and cooperates with the column hole of the shrink sleeve receiving space, and an abutting groove which cooperates with the abutting portion on the sleeve is provided on the outer circumference of the shrink sleeve.
  • the spring force of the inner spring applies a radial abutting force toward the sleeve to the sleeve, and the abutting portion applies an axial abutting force to the shrink sleeve, thereby making the shrink sleeve more securely mounted within the sleeve.
  • the resisting groove should be set relatively shallow, and the resisting portion can be inserted into the resisting groove a little bit.
  • the shrink sleeve housing space further includes a column hole connected to the shrink sleeve housing space, the shrink sleeve further includes a cylinder surface matching the column hole, and the end portion of the cylinder protruding sleeve is radially outward a limiting portion for restraining the shrink sleeve on the sleeve; wherein the shrink sleeve is installed in the sleeve and is extended by the inner spring, the maximum outer diameter of the limiting portion is greater than the space corresponding to the shrink sleeve receiving space
  • the aperture of the column hole; the elastic force of the shrink sleeve through the radial direction of the inner spring, the limiting portion and the contracting cone facing the shrink sleeve in the opposite directions of the axial direction and the sleeve are mounted together; the limiting mechanism
  • the utility model comprises an internal threaded portion disposed on the wall of the shrink sleeve receiving space of the slee
  • the shrink sleeve is mounted to the sleeve by the elastic force in the radial direction of the inner spring, the limiting portion and the contracting cone facing the axial direction of the shrink sleeve in two opposite directions, thereby mounting the shrink sleeve and the sleeve.
  • the parts are not separated, so that the shrink sleeve and the sleeve are assembled in the factory beforehand, and will not be scattered during transportation.
  • the shrink sleeve is placed on the connecting core rod, and the axial direction force is applied to the sleeve to make the shrink sleeve.
  • the threaded portion of the shrink sleeve is threadedly engaged with the threaded hole of the sleeve to fix the sleeve and the shrink sleeve together, so that the shrink sleeve is locked and fixed in the sleeve and connected in the fully contracted state of the shrink sleeve.
  • the core rod is also easy to install and easy to operate.
  • the utility model further comprises a round pipe;
  • the limiting mechanism is a thread locking mechanism, comprising a threaded hole disposed on the sleeve and communicating with the shrink sleeve receiving space, and the threaded hole disposed on the outer circumferential surface of the circular pipe and the sleeve a mating external thread portion;
  • a single-lobed contracting member is disposed on the side wall of the circular tube to accommodate the side hole.
  • a first contraction expansion projection for contracting and expanding the shrink sleeve is protruded on the outer circumference of the shrink sleeve, and the first contraction expansion projection includes a contraction taper for the first contraction expansion.
  • the shrink sleeve housing space includes a first contraction expansion accommodating groove that cooperates with the first contraction expansion projection, and the two groove walls of the first contraction expansion accommodating groove form a drive for contracting the shrink sleeve and engaging the contraction taper surface of the shrink sleeve.
  • the conical recessed portion for expansion and the tapered taper for expansion are provided, and when disassembled, the conical recessed portion for expansion on the shrink sleeve cooperates with the taper surface for expansion on the shrink sleeve to shrink the shrink sleeve and disassemble It is easy and more reliable, ensuring that the shrink sleeve will not be damaged during the disassembly process.
  • the sleeve includes a first sleeve and a second sleeve; the first shrink-expansion receiving groove that cooperates with the first contraction expansion projection is disposed on the first sleeve; and the limiting mechanism is a thread locking mechanism comprising a threaded portion disposed on an outer circumference of the first sleeve, a threaded hole provided on the second sleeve to engage with a threaded portion of the first sleeve; and an outer circumference of the shrink sleeve a second contraction expansion projection that is symmetrical about a central position of the contraction expansion projection, the shrink sleeve accommodation space further includes a second engagement portion and a second contraction expansion projection The second shrinkage expansion is used for the accommodating groove.
  • the limiting mechanism is a limiting member mounted between the sleeve and the connecting core rod, and a limiting member resisting portion disposed on the sleeve or a limiting member resisting portion disposed on the connecting core rod
  • the limiting member and the limiting member resisting portion are mounted together, one side of the sleeve is axially restrained by the shrink sleeve, and the other side of the sleeve is axially restrained by the limiting member, so that The sleeve and the connecting rod remain in a fixed position.
  • the limiting mechanism is a limiting member installed between the sleeve and the connecting core rod, and has a simple structure and low cost.
  • the limiting member is a first circlip
  • the limiting member resisting portion is a first card slot disposed on the sleeve or a first card slot disposed on the connecting core rod.
  • the limiting member is the first circlip
  • the limiting portion resisting portion is the first card slot, the limiting effect is good, and the installation is convenient.
  • the limiting mechanism is a thread locking mechanism; a second circlip spring for preventing the reverse rotation of the thread locking mechanism, and a second card slot disposed on the sleeve or disposed on the connecting core rod
  • the second card slot in the fully contracted state of the shrink sleeve, the second spring is installed in the second card slot, so that the shrink sleeve is in a fully contracted state.
  • the second circlip preventing the reverse rotation of the thread locking mechanism and the second card slot ensure that the shrink sleeve is completely contracted in the working state, thereby completely ensuring that the connection of the shrink connection assembly is completely reliable in the working state, To be foolproof.
  • an axial ridge or a recess is provided on the outer side of each of the contracting members, and the contracting taper is disposed on the rib or the recess of the contracting member; and the sleeve is provided with a contracting member for each flap.
  • the upper rib-fitted recess or the rib that cooperates with the recess on each of the flaps, the drive taper is disposed on the sleeve ridge or recess.
  • a rib with a conical surface for contraction is provided on the shrinking member, and a recessed portion with a driving taper surface is provided on the sleeve, and the diameter of the through hole on the connected member and the hole diameter of the hole on the connected member are unchanged.
  • the ribs on the shrinking member the ribs are added, thereby greatly increasing the axial load that the shrink sleeve can bear; the ribs with the driving taper surface are provided on the sleeve, and the belt is provided on the shrinking member.
  • the shrinking concave portion of the tapered surface can greatly increase the thickness of the shrinking member when the diameter of the through hole of the connected member and the diameter of the hole on the connected member are constant, thereby greatly increasing the axis that the shrink sleeve can withstand. To the load.
  • the side wall of the shrink sleeve receiving space on the sleeve includes a cylindrical curved surface on which the shrink sleeve is radially limited to be distributed on the same circumferential surface
  • the surface of the shrinking sleeve and the shrink sleeve housing space matching the cylindrical surface of the shrink sleeve radial limit is a cylindrical curved surface distributed on the same circumferential surface, and the sleeve and the shrink sleeve are radially matched by the surface to face contact or evenly a clearance fit
  • the side wall of the connecting core receiving space comprises a cylindrical curved surface distributed on the same circumferential surface, and the cylindrical curved surface and the connecting core rod provided with the wedge-shaped resisting portion are tightly matched by the surface-to-surface contact Or evenly spaced with the outer peripheral surface of the connecting core rod provided with the wedge-shaped resisting portion.
  • the connecting core rod is a connecting member only for connecting, and the positioning resisting portion is disposed on the outer circumference of one end of the connecting core rod to form a connecting core rod head; the connected member is more than two, and the shrink connecting assembly is contracted Fasten the connection assembly.
  • the connecting core rod is a stepped connecting shaft on the mechanical device; the connected member is one or more mechanical parts mounted on the connecting shaft; and the positioning resisting portion is a step surface on the connecting core rod.
  • the connecting core rod is a connecting shaft of the mechanical device, the resisting force of the wedge-shaped resisting groove extending into the shrink sleeve through the wedge-shaped abutting groove on the connecting shaft, and the resisting force of the positioning resisting portion on the mechanical part, and the shrinking sleeve resisting the mechanical part
  • the force fixes the mechanical parts on the connecting shaft, and fixes the mechanical parts with respect to the direct use of the nut and the threaded portion on the connecting shaft, can withstand a large axial force, the connection is more reliable, and the connecting shaft is not easily damaged.
  • a wedge-shaped abutting portion is disposed on two outer circumferences of the connecting core body, and each of the wedge-shaped resisting portions is provided with a shrink sleeve matched with the sleeve, and a sleeve matched with the shrink sleeve, and The shrink sleeve is fully contracted to prevent the sleeve and the shrink sleeve from loosening.
  • the shrink connection structure further comprises more than one connected member, and the through hole is matched with the connecting core rod on the connected member;
  • the connecting core rod is a connecting member only for connecting, and the positioning resisting portion is disposed on the outer circumference of one end of the connecting core rod to form a connecting core rod head;
  • the connecting core rod is provided with a through hole of one end of the wedge-shaped resisting portion passing through all the connected members, and the connecting core rod is provided with a portion of the wedge-shaped resisting portion protruding from the connecting member;
  • the shrink sleeve is mounted on the connecting core rod, the sleeve is mounted outside the shrink sleeve, the positioning resisting portion of the connecting core rod is axially resisted by a connected member opposite thereto, and the shrink sleeve is axially resisted by the other connected member opposite thereto Two or more connected members are abutted together, and the wedge-shaped resisting portion of the connecting core rod is opposite to the corresponding wedge-shaped resisting groove of the shrink sleeve;
  • the wedge-shaped resisting portion of the connecting core rod When the shrink sleeve is fully contracted, the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the surface and the surface resist each other to form a snap, and the limiting mechanism prevents the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is retained.
  • the positioning resisting portion of the connecting core rod in the fully contracted state of the shrink sleeve, the positioning resisting portion of the connecting core rod axially resists a connected member opposite thereto, and the shrink sleeve is axially resisted by the other connected member opposite thereto, and the shrink connection assembly will More than two connected pieces are fixed Together.
  • the shrink connection structure further comprises a wave spring or an elastic washer which is sleeved on the connecting core rod and eliminates the axial gap, and the wave spring or the elastic washer is installed between the positioning abutting portion and the connected member, or Installed between the shrink sleeve and the connected piece.
  • the wave spring or the elastic washer can eliminate the gap generated by the wedge-shaped abutting portion on the connecting core rod and the wedge-shaped resisting groove on the shrink sleeve due to the matching requirement and the machining error, so that the shrink connection assembly and the connected member are tight in the axial direction of the connecting core rod With the cooperation, the connection fixing effect is better.
  • the shrink connection structure further includes more than one connected member, and the connected member is a mechanical part;
  • the connecting core rod is a stepped connecting shaft on the mechanical device;
  • the positioning resisting portion is a step surface on the connecting core rod;
  • the connecting core rod is provided with a through hole of one end of the wedge-shaped resisting portion passing through the mechanical part, the mechanical part is axially resisted by the positioning resisting portion of the connecting core rod, and the connecting core rod is provided with a partially protruding mechanical part of the wedge-shaped resisting portion;
  • the shrink sleeve is mounted on the connecting core rod, the sleeve is installed outside the shrink sleeve, the shrink sleeve is separated from the surface resisting limit of the positioning resisting portion by the mechanical part, the positioning resisting portion, the shrink sleeve and the mechanical part are abutted together, the wedge resisting groove Aligned with the corresponding wedge-shaped abutting portion;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the surface and the surface resist each other to form a snap, and the limiting mechanism prevents the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is retained.
  • the positioning resisting portion of the connecting core rod axially resists the mechanical component and the opposite surface thereof, and the shrink sleeve pair axially resists the mechanically opposite surface thereof, the shrink sleeve, the sleeve,
  • the limiting mechanism fixes the mechanical parts to the connecting core rod.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure further comprises two or more connected members; the through holes are respectively provided with the connecting core rods; the connecting core rod is a connecting member only for connecting, and the positioning resisting portion is disposed at the connecting core rod Forming a connecting core head on the outer circumference of one end;
  • Connection methods include:
  • the connecting core rod is provided with one end of the wedge-shaped resisting portion through the through hole of all the connected members, and the connecting core rod is provided with a portion of the wedge-shaped resisting portion protruding from the connecting member;
  • the shrink sleeve, the connecting core rod and the sleeve are installed together; the shrink sleeve is mounted on the connecting core rod, and the sleeve is installed outside the shrink sleeve; the drive sleeve, the sleeve, the shrink sleeve, all the connected parts, and the positioning resisting portion are abutted Abutting together, the wedge-shaped abutting portion on the shrink sleeve is opposite to the corresponding wedge-shaped resisting groove on the connecting core rod;
  • the sleeve drive shrink sleeve shrinks, the sleeve continues to move toward the connected member, and the shrink sleeve is contracted by the connecting member against the axial direction only in the radial direction, and the wedge-shaped resisting portion of the shrinking member extends into the corresponding wedge shape of the connecting core rod In the resisting groove, the surface and the surface resist each other to form a snap, until the shrink sleeve no longer moves in a radial direction, the shrink sleeve is in a fully contracted state, the sleeve stops moving or continues to slide relative to the shrink sleeve for a certain distance to stop the movement; The sleeve prevents the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is maintained in a fully contracted state;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting core rod, and the shrink sleeve is opposite thereto
  • the connecting member axially resists, and the positioning resisting portion of the connecting core rod axially resists the connected member opposite thereto, and the shrink connecting assembly is fixedly connected with the connected member.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure also includes more than one mechanical part
  • the connecting core rod is a stepped connecting shaft on the mechanical device
  • Connection methods include:
  • the mechanical part is mounted on the connecting shaft from one end of the connecting shaft with the wedge-shaped resisting portion, and the connecting shaft is provided with a partially protruding mechanical part with a wedge-shaped resisting portion;
  • the shrink sleeve, the connecting shaft and the sleeve are installed together, the shrink sleeve is mounted on the connecting shaft, and the sleeve is installed outside the shrink sleeve;
  • the driving sleeve, the sleeve, the shrink sleeve, the mechanical part, and the positioning abutting portion abut each other, and the wedge-shaped resisting portion on the shrink sleeve is opposite to the corresponding wedge-shaped resisting groove on the connecting shaft;
  • the sleeve is driven, the sleeve drives the shrink sleeve to contract, and the sleeve continues to move in the direction of the mechanical part.
  • the shrink sleeve is mechanically resisted by the movement of the axial direction only in the radial direction, and the wedge-shaped resisting portion of the shrinking member extends into the connecting shaft.
  • the wedge-shaped abutting groove is formed by the surface and the surface resisting each other to form a snap until the shrink sleeve is no longer moved radially, and the shrink sleeve is in a fully contracted state.
  • the sleeve stops moving or continues to slide relative to the shrink sleeve for a certain distance to stop the movement; the limiting mechanism acts on the sleeve to prevent the sleeve and the shrink sleeve from loosening, so that the shrink sleeve is maintained in a fully contracted state;
  • the wedge-shaped abutting portion of the connecting shaft extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting shaft, and the shrink sleeve is opposite to the mechanical part. Abutting axially, the positioning abutting portion of the connecting shaft axially resists the mechanical part opposite thereto, and the shrink connection assembly is fixedly coupled with the mechanical part.
  • connection method of a shrink connection structure comprising:
  • connected member is provided with a through hole that cooperates with the connecting core rod
  • the limiting mechanism is a thread locking mechanism, comprising a threaded portion axially disposed on the connecting core rod body, and a threaded hole disposed on the sleeve and communicating with the shrink sleeve receiving space;
  • Connection methods include:
  • the shrink sleeve, the connecting core rod and the sleeve are installed together, the shrink sleeve is mounted on the connecting core rod, the sleeve is installed outside the shrink sleeve, and the threaded hole of the shrink sleeve is screwed on the threaded portion of the connecting core rod;
  • the wedge-shaped abutting portion of the connecting core rod extends into the wedge-shaped abutting groove of the shrink sleeve to resist the deformation of the surface and the surface, until the shrink sleeve is no longer moved radially, and the shrink sleeve is completely In the contracted state, the sleeve stops rotating or continues to rotate, so that the sleeve continues to slide relative to the shrink sleeve for a certain distance to stop moving;
  • the threaded hole on the sleeve and the threaded portion on the connecting mandrel body are threaded to prevent the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is maintained in a fully contracted state;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting core rod, and the shrink sleeve is opposite thereto
  • the connecting member axially resists, and the positioning resisting portion of the connecting core rod axially resists the connected member opposite thereto, and the shrink connecting assembly is fixedly connected with the connected member.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure further comprises more than one connected member, wherein the connected member is provided with a through hole that cooperates with the connecting core rod;
  • the shrink connection assembly further comprises a round tube;
  • the limiting mechanism is a thread locking mechanism, including the sleeve a threaded hole communicating with the shrink sleeve receiving space on the cylinder, an external thread portion disposed on the outer peripheral surface of the circular tube and engaging with the threaded hole of the sleeve; and a single-lobed shrinking member receiving side radially on the side wall of the round tube hole;
  • Connection methods include:
  • the shrink sleeve, the sleeve, the round tube and the connecting core rod are installed together;
  • the single-lobed shrinking member is installed in the corresponding single-lobed shrinking member receiving side hole of the round tube, and the round tube and the shrink sleeve installed together are installed
  • Connected to the core rod the sleeve is mounted outside the circular tube and the shrink sleeve, the shrink sleeve protrudes from the side of the connected member and abuts against the connected member, and the wedge-shaped resisting portion and the connecting core rod on the shrink sleeve Corresponding wedge-shaped resisting grooves are facing each other;
  • Thread-locking through the threaded hole in the sleeve and the threaded portion on the circular tube prevents the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is maintained in a fully contracted state;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting core rod, and the shrink sleeve is opposite thereto
  • the connecting member axially resists, and the positioning resisting portion of the connecting core rod axially resists the connected member opposite thereto, and the shrink connecting assembly is fixedly connected with the connected member.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure further comprises more than one connected member, and the through hole is matched with the connecting core rod;
  • the limiting mechanism is a limiting member mounted between the sleeve and the connecting core rod;
  • Connection methods include:
  • the shrink sleeve, the connecting core rod and the sleeve are mounted together; the shrink sleeve is mounted on the connecting core rod, the sleeve is installed outside the shrink sleeve; and the axial force of the opposite direction is applied to the positioning resisting portion of the connecting core rod and the sleeve, The sleeve, the shrink sleeve, the connected member, and the positioning abutting portion abut each other, and the wedge-shaped resisting portion on the shrink sleeve is opposite to the corresponding wedge-shaped resisting groove on the connecting core rod;
  • the axial force of the opposite direction is applied to the positioning resisting portion and the sleeve of the connecting core rod, and the sleeve is moved toward the connected member, and the shrink sleeve is contracted by the connecting member against the axial direction only to shrink in the radial direction, and the connection is made.
  • the wedge-shaped abutting portion of the core rod extends into the wedge-shaped abutting groove of the shrink sleeve to form a snap by the surface and the surface resisting until the shrink sleeve is no longer moved radially, the shrink sleeve is in a fully contracted state, and the sleeve stops moving or continues to be relatively
  • the shrink sleeve slides for a distance to stop the movement;
  • the limiting mechanism acts on the sleeve to prevent the sleeve and the shrink sleeve from being loosened, so that the shrink sleeve is maintained in a fully contracted state;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting core rod, and the shrink sleeve is opposite thereto
  • the connecting member axially resists, and the positioning resisting portion of the connecting core rod axially resists the connected member opposite thereto, and the shrink connecting assembly is fixedly connected with the connected member.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure further includes more than one connected member, and the through hole is provided with a through hole that cooperates with the connecting core rod;
  • the shrink connection assembly further includes an inner spring and an outer spring; and the connection between the shrink sleeve and the connecting core rod
  • An inner spring receiving groove is radially disposed on a hole wall of the core receiving space, and an outer spring receiving groove is radially disposed on an outer peripheral surface of each of the shrinking members;
  • Connection methods include:
  • the shrinking members that are held together are installed in the outer spring receiving groove by the outer spring to form a shrink sleeve installed in the sleeve, and the inner spring is installed in the inner spring receiving groove in the shrink sleeve;
  • the connecting core rod is provided with one end of the wedge-shaped abutting portion passing through the connected member, and the connecting core rod is provided with a portion of the wedge-shaped resisting portion protruding from the connecting member;
  • the sleeve and the shrink sleeve mounted together are mounted on the connecting core rod; the sleeve, the shrink sleeve, the connected member, the positioning abutting portion abut each other, the wedge-shaped resisting portion on the shrink sleeve and the corresponding wedge shape on the connecting core rod
  • the resisting groove is facing right;
  • the sleeve drive shrink sleeve shrinks, and the driving taper surface of the sleeve slides with respect to the shrink sleeve of the shrink sleeve.
  • the shrink sleeve is resisted by the joint member in the axial direction, shrinks only in the radial direction, and connects the wedge shape on the core rod.
  • the wedge-shaped abutting groove of the resisting portion extending into the shrink sleeve forms a snap-fit by the surface and the surface resisting until the shrink sleeve is no longer moved radially, the shrink sleeve is in a fully contracted state, the sleeve stops moving or continues to slide a distance relative to the shrink sleeve Stopping the movement; the limiting mechanism acts on the sleeve to prevent the sleeve and the shrink sleeve from loosening, so that the shrink sleeve is maintained in a fully contracted state;
  • the positioning resisting portion of the connecting core rod axially resists the oppositely connected member, the shrink sleeve is axially resisted by the opposite connected member, and the shrink joint assembly is fixedly coupled with the connected member.
  • connection method of the shrink connection structure is that when the factory sleeve and the shrink sleeve are mounted together, the shrink joint assembly and the joint fixed joint are connected, the connecting core rod is equivalent to the screw, and the shrink sleeve and the sleeve are installed together. It is equivalent to a nut and is very simple and convenient to use.
  • connection method of a shrink connection structure comprising:
  • the shrink connection structure further comprises one or more connected members, wherein the connected member is provided with a through hole that cooperates with the connecting core rod;
  • the shrink connection assembly further includes an outer spring; and is disposed radially on the outer peripheral surface of each of the contracting members External spring receiving groove;
  • Connection methods include:
  • the shrinking member is held together by the outer spring to form a shrink sleeve, and the outer spring is completely accommodated in the outer spring receiving groove;
  • the connecting core rod is provided with one end of the wedge-shaped abutting portion passing through the connected member, and the connecting core rod is provided with a portion of the wedge-shaped resisting portion protruding from the connecting member;
  • the shrink sleeve is mounted on the connecting core rod, and the sleeve is installed outside the shrink sleeve; the shrink sleeve protrudes from the side of the connected member and abuts against the connected member, and the wedge-shaped resisting portion on the shrink sleeve Corresponding to the corresponding wedge-shaped resisting groove on the connecting mandrel;
  • the sleeve drive shrink sleeve shrinks, and the wedge-shaped resisting portion of the connecting core rod extends into the shrink sleeve, and the wedge-shaped resisting groove is engaged with the surface to form a snap-fit until the shrink sleeve is no longer moved radially, and the shrink sleeve is in a completely contracted state.
  • the sleeve stops moving or continues to slide relative to the shrink sleeve for a certain distance to stop the movement; the limiting mechanism acts on the sleeve to prevent the sleeve and the shrink sleeve from loosening. Keeping the shrink sleeve in a fully contracted state;
  • the wedge-shaped resisting portion of the connecting core rod extends into the corresponding wedge-shaped resisting groove of the shrink sleeve, and the sleeve and the surface resist each other to form a snap fit, and the shrink sleeve is mounted with the connecting core rod, and the shrink sleeve is opposite thereto
  • the connecting member axially resists, and the positioning resisting portion of the connecting core rod axially resists the connected member opposite thereto, and the shrink connecting assembly is fixedly connected with the connected member.
  • connection force of the shrink connection assembly and the connected member in the shrink connection structure is caused by the axial abutting force acting on the connected member by the positioning abutting portion of the connecting core rod, and the wedge-shaped resisting portion of the connecting core rod acts on
  • the axial abutting force of the wedge-shaped resisting groove of the shrink sleeve, the axial abutting force of the shrink sleeve acting on the connected member rather than the pre-tightening static friction force of the threaded connection, or the expansion static friction force of the shrinking screw or the shrink bolt, the connecting force Very big.
  • the static friction force generated by the radial pressing force has the advantage that the load is large or In the case of vibration, the connection will not be broken due to slight sliding friction.
  • the invention completely breaks the static connection of the existing screw-connected screw or bolt mechanical static connection by the pre-tightening, the mechanical static connection of the expansion screw or the expansion bolt, the expansion static friction force caused by the contraction or the deformation caused by the deformation of the shrink sleeve Force to connect the inertial thinking of the object.
  • the wedge-shaped abutting portion connecting the core rod and the corresponding wedge-shaped resisting groove of the shrink sleeve are previously processed, and are not formed by shrinkage deformation of the shrink sleeve.
  • the shrink sleeve is designed to have two flaps (where the shrink sleeve is the best for the three flaps), and the shrink sleeve does not deform during the shrinking process, thereby providing many benefits.
  • the advantage of this structure is that, first, the number and shape of the wedge-shaped abutting portions can be freely designed according to the force, and the position of the wedge-shaped resisting groove on the shrink sleeve is also based on the structure of the shrink sleeve and the thickness of the connected member.
  • the design can withstand a large external force as needed and the connection is reliable.
  • the shrink sleeve is resisted by the two faces opposite to each other by the connecting member, so that the wedge-shaped resisting portion on the shrink sleeve is opposite to the corresponding wedge-shaped resisting groove in the shrink sleeve, so that the shrink sleeve radially moves during the shrink sleeve shrinkage process.
  • the wedge-shaped resisting portion can enter the wedge-shaped resisting groove without any mistakes.
  • the wedge-shaped resisting portion can accurately cooperate with the wedge-shaped resisting groove, and the wedge-shaped resisting portion
  • the mating portions that are in contact with the wedge-shaped abutting grooves are surface-fitted, so that stress concentration can be greatly reduced; thirdly, the use range is wide and does not need to be
  • the material hardness of the joint is much lower than the material hardness of the shrink joint assembly, and there is no need for a large friction coefficient between the shrink joint assembly and the connected member. It can be used as a substitute for screws or bolts and can be used for aircraft, ships and equipment.
  • aerospace equipment, aircraft carriers, spacecraft, rockets, engines, nuclear reactors, trains, high-speed rail, railroad tracks, steel structures, steel bridges, automobiles, etc. are subject to large loads, especially axial loads, or very high temperatures. Or the connection of mechanical parts of key parts in working environment such as hot and cold cross-change temperature or large vibration.
  • the positioning resisting portion of the connecting core rod is resisted by the connected member, and the shrink sleeve is contracted by the sleeve, so that the wedge-shaped resisting portion on the connecting core rod projects into the wedge-shaped resisting groove of the shrink sleeve, due to the connection on the core rod
  • the wedge-shaped abutting portion and the wedge-shaped abutting groove on the shrink sleeve are independent of each other, and are not screw-fitted, and the shrink sleeve and the connecting core rod are not loosened (not reversed and loosened), so that it is very reliable to connect the connected member through the shrink connection assembly.
  • the sleeve only plays the role of contracting the shrink sleeve, and does not bear the joint force to be connected by the joint.
  • the force of the sleeve is very small, even if the sleeve is screwed, it is almost impossible to cause
  • the failure of the threaded connection so that the connection of the sleeve and the shrink sleeve in the fully retracted state of the shrink sleeve, or the connection between the sleeve and the connecting rod is also very reliable, and it is also easy to achieve that the connecting rod never falls off and is fixed on the shrink sleeve. Therefore, the connection between the connected member and the connected member in the working state is never detached.
  • the connecting core rod is not embedded in the shrink sleeve, the radial connection force between the shrink sleeve and the connecting core rod is very small, and the wedge-shaped resisting groove and the connecting core rod on the shrink sleeve
  • the wedge-shaped abutting portion is also almost impossible to be damaged in the working state; therefore, when disassembling, the sleeve is only required to be disengaged from the retracted position, and the shrinking member can be separated from the connecting core rod without a large force, and the shrinking connection is not damaged when disassembled.
  • the assembly will not damage the connected parts. Not only can the shrink connection assembly be reused many times, but the connected parts will not be reworked or scrapped due to damage to the position where the shrink connection assembly is connected.
  • the connecting core rod is a connecting member that only functions as a connection
  • the positioning resisting portion is disposed on the outer circumference of one end of the connecting core rod to form a connecting core rod head
  • the shrink connecting assembly can be designed as a standard part
  • the connecting core rod is equivalent to a bolt
  • the shrink sleeve and the sleeve are mounted together with respect to the nut, which is convenient to use and greatly reduced in cost. There is no need to machine the resisting structure on the connected parts, further reducing the cost.
  • the connecting mandrel is a one-piece solid rod that can withstand greater forces than a hollow expansion sleeve.
  • Figure 1 is a perspective view of a shrink-joined assembly of Embodiment 1 of the present invention.
  • Fig. 2 is a perspective exploded view showing the shrink connection structure of the embodiment 1 of the present invention.
  • Fig. 3 is a front elevational view showing the shrink-fit connection structure of the first embodiment of the present invention in a state in which the shrink sleeve is not contracted.
  • Fig. 4 is a cross-sectional view showing the rotation of A-A of Fig. 1;
  • Fig. 5 is a front elevational view showing the shrink-fit connection structure of the first embodiment of the present invention in a state in which the shrink sleeve is fully contracted.
  • Fig. 6 is a cross-sectional view taken along line B-B of Fig. 5;
  • Figure 7 is a cross-sectional view showing the center position of one of the flap shrink members in the uncontracted state of the shrink sleeve in the shrink sleeve according to the second embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing the center position of a shrink-fit connection structure of the embodiment 3 of the present invention in a state in which the shrink sleeve is not contracted.
  • Figure 9 is a perspective exploded view of the shrink connection structure of Embodiment 4 of the present invention.
  • Figure 10 is a cross-sectional view showing the center position of a shrink-fit joint of the embodiment 4 of the present invention in a state in which the shrink sleeve is not contracted.
  • Figure 11 is a cross-sectional view showing the center of the shrink-fit connection structure of the embodiment 4 of the present invention in a state in which the shrink sleeve is fully contracted through one of the flap shrink members.
  • Figure 12 is a perspective view of a shrink connection assembly of Embodiment 5 of the present invention.
  • Figure 13 is a perspective exploded view of the shrink-fit connection structure of Embodiment 5 of the present invention.
  • Figure 14 is a cross-sectional view showing the center position of a shrink-fit joint of the embodiment 5 of the present invention in a state in which the shrink sleeve is not contracted.
  • Figure 15 is a cross-sectional view showing the center position of a shrink-fit joint of the embodiment 5 of the present invention in a state in which the shrink sleeve is fully contracted.
  • Figure 16 is a perspective exploded view of the shrink-fit connection structure of Embodiment 6 of the present invention.
  • Figure 17 is a cross-sectional view showing the center position of one of the flap shrink members in the contraction joint of the embodiment 6 of the present invention in a state in which the shrink sleeve is fully contracted.
  • Figure 18 is a perspective exploded view of the shrink-fit connection structure of Embodiment 7 of the present invention.
  • Figure 19 is a cross-sectional view showing the center position of one of the flap shrink members in the contraction joint of the embodiment 7 of the present invention in a state in which the shrink sleeve is fully contracted.
  • Figure 20 is a cross-sectional view showing the center position of a shrink-fit joint of the embodiment 7 of the present invention in a state in which the shrink sleeve is not contracted.
  • Figure 21 is a cross-sectional view showing the center position of one of the flap shrink members in the contraction joint of the embodiment 8 of the present invention in a state in which the shrink sleeve is fully contracted.
  • Fig. 22 is an enlarged schematic view showing a portion I of Fig. 21;
  • Fig. 23 is an enlarged schematic view showing a portion II of Fig. 21;
  • Fig. 24 is an enlarged schematic view showing a portion III of Fig. 21;
  • Figure 25 is a perspective exploded view of the shrink-joined assembly of Embodiment 9 of the present invention.
  • Figure 26 is a cross-sectional view showing the center position of a shrinkage-receiving member of the ninth embodiment of the present invention in a state in which the shrink sleeve is fully contracted.
  • Figure 27 is a perspective exploded view of the shrink connection assembly of Embodiment 10 of the present invention.
  • Figure 28 is a cross-sectional view showing the center position of one of the flap shrink members in the contraction joint of the tenth embodiment of the present invention in a state in which the shrink sleeve is fully contracted.
  • Figure 29 is a perspective exploded view of the shrink connection assembly of the eleventh embodiment of the present invention.
  • Figure 30 is a cross-sectional view showing the center of the shrink-fit connection structure of the embodiment 11 of the present invention in a state in which the shrink sleeve is fully contracted through one of the flap shrink members.
  • a shrink connection assembly 1 includes a shrink sleeve 4 composed of a shrinking member 3 for connecting the core rod 2, and a three-folded joint core rod 2, and a sleeve 5 for driving the shrink sleeve 4 to be contracted. , in the shrink sleeve 4 fully contracted state to prevent the sleeve The retaining mechanism for releasing the cartridge 5 and the shrink sleeve 4, the inner spring 6, and the inner spring 7.
  • the connecting core rod 2 includes a stepped connecting core body 8 formed of a cylindrical small rod 9 and a cylindrical large rod 12, which is radially protruded from the cylindrical shape of the connecting core rod body 8.
  • An independent annular wedge-shaped abutting portion 10 on the outer circumference of the rod 9 is connected to the small rod 9 and radially protrudes from the threaded end 11 of the small rod 9 and is radially protruded from the cylindrical large rod 12 end of the connecting core rod body 8.
  • the hexagonal head positioning resisting portion 13 is provided with a plurality of inverted L-shaped projections 14 on the end faces of the threaded ends 11, and the projections 14 and the end faces of the threaded ends 11 form a second latching groove 15.
  • the shape of the single wedge-shaped abutment portion 10 on the section passing through the axis is trapezoidal.
  • the inner side wall of the shrink member 3 is a stepped cylindrical curved surface 18 and a cylindrical curved surface 42.
  • a wedge-shaped abutting groove 17 and an inner spring receiving groove 33 which cooperate with the wedge-shaped abutting portion 10 are provided, and an inner spring receiving groove 32 is provided in the cylindrical curved surface 42.
  • the shape of the single wedge-shaped abutment groove 17 on the section passing through the axis is a trapezoidal shape that cooperates with the wedge-shaped abutment portion 10.
  • the outer side wall of the shrink member 3 includes a conical curved surface 19 for contraction for driving the shrink sleeve 4, a cylindrical curved surface 20 connected to the large end of the conical curved surface 19 for contraction, and a constricted conical joint for connecting the small end to the cylindrical curved surface 20
  • the curved surface 21 is a cylindrical curved surface 22 connected to the large end of the conical curved surface 21 for contraction.
  • the conical curved surface 19 for contraction and the conical curved surface 21 for contraction form a conical surface for contraction.
  • a resisting groove 23 is provided on the cylindrical curved surface 20 of the shrink sleeve 4.
  • the outer side wall of the sleeve 5 is a regular hexagon.
  • a sleeve receiving space is provided in the sleeve 5, and a threaded through hole 24 communicating with the shrink sleeve receiving space is provided.
  • a plurality of radial anti-rotation grooves 25 are provided on the end face of the sleeve 5 facing away from the positioning abutting portion 13.
  • the limiting mechanism is a thread locking mechanism, which is a threaded end 11 connecting the core rod 2 and a threaded through hole 24 in the sleeve 5 threaded on the threaded end 11.
  • the shrink sleeve housing space includes a tapered hole 26 whose small end is connected with the threaded through hole 24, a receiving cylindrical hole 27 connected to the large end of the tapered hole 26, and a small end and a receiving cylindrical hole 27.
  • the drive tapered bore 28 and the drive tapered bore 30 form a drive cone.
  • a resisting portion 31 is formed inwardly of the hole wall of the cylindrical hole 29, and the resisting portion 31 is engaged with the resisting groove 23.
  • the cylindrical curved surface 18 and the cylindrical curved surface 42 of the shrinking member 3 that are held together form a connecting core receiving space 41.
  • the three-lobed shrinking members 3 are all installed in the sleeve 5 at the factory, the resisting portion 31 is mounted in the resisting groove 23, the inner spring 6 is mounted in the inner spring receiving groove 32, and the inner spring 7 is mounted in the inner spring receiving groove 33.
  • the inner spring 6 is completely received in the inner spring receiving groove 32, and the inner spring 7 is completely accommodated in the inner spring receiving groove 33, and the inner spring 6 and the inner spring 7 are elastically outwardly biased.
  • 3 resists inside the sleeve 5.
  • a shrink connection structure includes a shrink connection assembly 1, a connected member 34, a connected member 35, and a second circlip 36.
  • a circular through hole 37 that is engaged with the connecting core rod 2 is provided on the connected member 34, and a circular through hole 38 that engages with the connecting core rod 2 is provided on the connected member 35.
  • the connecting core rod 2 is a connecting member that only functions as a connection.
  • the positioning resisting portion 13 is disposed on the outer circumference of one end of the connecting core rod 2 to form a connecting core rod head, and the shrink connection assembly 1 is a shrink-fastening connection assembly.
  • the second circlip 36 includes a circlip main body 39 that is disconnected in the middle, and a block-shaped rotation preventing portion 40 that protrudes from a side of the circlip main body 39 away from the disconnected position.
  • the threaded end 11 of the connecting core rod 2 sequentially passes through the circular through hole 38 of the connected member 35 and the circular through hole 37 of the connected member 34.
  • the connecting core rod 2 is provided with a portion of the wedge-shaped abutting portion 10 protruding from the connecting member 34.
  • the threaded through hole 24 of the sleeve 5 and the shrink sleeve 4 connected to the core rod accommodating space 41 are mounted on the connecting core rod 2 through the threaded end 11 of the connecting core rod 2, and the threaded through hole 24 of the sleeve 5
  • the threaded connection is on the threaded end 11 of the connecting mandrel 2, the positioning abutting portion 13 of the connecting mandrel 2 is axially resisted by the connected member 35 opposite thereto, and the shrink sleeve 4 is axially resisted by the other connected member 34 opposite thereto
  • the connected member 35 and the connected member 34 abut each other, and the wedge-shaped resisting portion 10 of the connecting core rod 2 is opposite to the corresponding wedge-shaped resisting groove 17 of the shrink sleeve 4.
  • the wedge-shaped resisting portion 10 of the connecting core rod 2 extends into the corresponding wedge-shaped resisting groove 17 of the shrink sleeve 4, and is formed by the two inclined surface contacts of the trapezoid to form a snap fit.
  • the threaded through hole in the barrel 5 is screwed on the threaded end 11 of the connecting mandrel 2, and the threaded locking sleeve 5 and the connecting core rod 2, the sleeve 5 radially resists the limit of the shrink sleeve 4, the shrink sleeve 4 and the connecting core
  • the rods 2 are fixed together; the positioning abutting portion 13 of the connecting core rod 2 axially resists the connected member 35, the shrink sleeve 4 is axially resisted by the connecting member 34, and the shrink connecting assembly 1 is to be connected by the connecting member 35 and the connected member 34.
  • the connections are fixed together.
  • the thread locking mechanism prevents the sleeve 5 and the shrink sleeve 4 from coming loose, and the shrink sleeve 4 is kept completely Contraction state.
  • the rotation preventing portion 40 of the second circlip spring 36 is mounted in the rotation preventing groove 25, and the circlip main body 39 is installed in the second locking groove 15 and is resisted by the second locking groove 15 on the connecting core rod 2, and the circlip main body 39 shaft To the resisting sleeve 5, the placement sleeve 5 is reversely released.
  • the cylindrical curved surface 18 and the cylindrical curved surface 42 are distributed on the same circumferential surface, and the cylindrical curved surface 18 is tightly fitted to the outer peripheral surface of the small rod 9 of the connecting core body 8 provided with the wedge-shaped resisting portion 10 by a surface-to-surface contact, a cylindrical curved surface 42 is evenly spaced and fitted to the outer peripheral surface of the large rod 12 to which the core body 8 is connected.
  • the cylindrical curved surface 42 is concentric with the cylindrical curved surface 18 having a diameter larger than the diameter of the cylindrical curved surface 18 and the diameter of the large rod 12.
  • connection method in turn includes the following steps:
  • the shrink sleeve 4 is mounted in the sleeve 5, and the shrinkage of the shrink sleeve 4 is resisted by the conical curved surface 19 against the drive cone bore 28 of the sleeve 5, the cylindrical curved surface 20 of the shrink sleeve 4 resisting the cylindrical bore 29 of the sleeve 5.
  • the contraction of the shrink sleeve 4 is resisted by the conical curved surface 21 on the drive taper hole 30 of the sleeve 5.
  • the resisting portion 31 is mounted in the resisting groove 23, and the inner spring 6 is completely installed in the inner spring receiving groove 32. The radially outward elastic force of the inner spring 6 resists the shrink sleeve 4 in the sleeve 5; the above process is generally completed at the factory or at the installation site;
  • the threaded end 11 of the connecting core rod 2 is sequentially passed through the circular through hole 38 of the connecting member 35, the circular through hole 37 of the connected member 34, and the connecting core rod 2 is provided with a portion of the wedge-shaped resisting portion 10 protruding from the connecting member 34;
  • the threaded through hole 24 of the sleeve 5 and the connecting mandrel accommodating space 41 in the shrink sleeve 4 are mounted on the connecting mandrel 2 through the threaded end 11 of the connecting mandrel 2, and the threaded passage of the sleeve 5
  • the hole 24 is screwed onto the threaded end 11 of the connecting mandrel 2
  • the shrink sleeve 4 projects out of the sleeve 5 toward the side of the connected piece 34
  • the axis facing the sleeve 5 is applied to the positioning abutting portion 13 of the connecting mandrel 2
  • the sleeve 5 and the shrink sleeve 4 are moved synchronously to the connected member 34 until the shrink sleeve 4 abuts against the connected member 4, the sleeve 5, the shrink sleeve 4, the connected member 34,
  • the connecting member 35 and the positioning resisting portion 13 abut each other, the wedge-shaped resisting portion
  • the drive tapered bore 28 of the sleeve 5 slides over the conical curved surface 19 of the shrink sleeve 4, and the drive tapered bore 30 of the sleeve 5 slides over the conical curved surface 21 of the shrink sleeve 4 for contraction.
  • the sleeve 5 drives the shrink sleeve 4 to contract, and each of the flap shrinking members 3 only moves radially, and the wedge-shaped resisting grooves 17 on the connecting core rods 2 extend into the corresponding wedge-shaped resisting grooves 17 of the shrink sleeves 4 to resist each other through the surface and the surface to form a card. Close until the shrink sleeve 4 no longer moves in a radial direction, and the shrink sleeve 4 is in a fully contracted state;
  • the shrink sleeve 4 is in a fully retracted state, and the sleeve 5 is further rotated.
  • the small end of the drive tapered bore 28 of the sleeve 5 passes over the large end of the conical curved surface 19 of the shrink sleeve 4, and the drive cone 30 of the sleeve 5
  • the small end of the contraction sleeve 4 passes over the large end of the conical curved surface 21 of the shrink sleeve 4, and the sleeve 5 continues to slide relative to the shrink sleeve 4 for a distance to stop the rotary sleeve 5.
  • the threaded locking sleeve 5 is connected to the threaded connecting rod 2 by the sleeve 5 to prevent the sleeve 5 and the shrink sleeve 4 from being loosened, so that the shrink sleeve 4 is maintained in a fully contracted state;
  • the wedge-shaped abutting portion 10 of the connecting mandrel 2 extends into the corresponding wedge-shaped abutment groove 17 of the shrink sleeve 4, and is engaged by the two inclined surface contacts of the trapezoid to form a snap through the threaded through hole in the sleeve 5.
  • the rotation preventing portion 40 of the second circlip spring 36 is mounted in the rotation preventing groove 25, and the circlip main body 39 is installed in the second locking groove 15 and is resisted in the connecting core rod 2 through the second locking groove 15, thereby preventing the connecting core rod 2 reverse.
  • the second circlip 36 is first removed from the second slot 15 and the sleeve 5 is rotated in the opposite direction.
  • the positioning abutting portion 61 of the connecting core rod 60 has a cylindrical shape, and an inner hexagonal hole 62 is provided at an end surface of the positioning abutting portion 61.
  • the single wedge-shaped abutting portion 63 includes a guiding portion 64, a resisting portion 65 connected to the guiding portion 64, and a connecting portion 68 connecting the abutting portion 65 and the small rod 67 connecting the core rod 66, the resisting portion 65 being perpendicular to the axis of the connecting core rod 66;
  • the single wedge-shaped resisting groove 69 includes two guiding surfaces 72 connected to the wall of the connecting mandrel accommodating space 71 of the shrink sleeve 70, and two vertical faces 73 connected to the two guiding faces 72 and perpendicular to the axis of the shrink sleeve 70, connecting the two verticals
  • the escaping connecting surface 74 of the surface 73 in the fully contracted state of the shrink sleeve 70, the guiding portion 64 is clearance-fitted with the escaping connecting surface 74, the resisting portion 65 is resisted by the vertical surface 73, and the connecting portion 68 is gap-fitted with the two guiding surfaces 72 .
  • the connecting core rod 80 includes a stepped connecting core body 81 which is radially protruded from an independent ring which is connected to the outer circumference of the cylindrical small rod 82 of the core rod body 81.
  • the wedge-shaped resisting portion 83, the straight light rod portion 84 connected to the small rod 82, is radially protruded from the hexagonal head positioning resisting portion 86 of the end portion of the cylindrical large rod 85 connecting the core rod body 81, and is disposed at the straight light rod portion 84.
  • the first card groove 87 on the outer peripheral surface of the end portion.
  • the limiting mechanism is a first circlip 88 and a first card slot 87 disposed at an end of the straight rod portion 84 of the connecting mandrel 80.
  • a circular through hole 91 that is engaged with the straight rod portion 84 and communicates with the shrink sleeve housing space 90 is a light hole.
  • the first circlip 88 is a broken ring shape.
  • the first snap spring 88 is mounted in the first latching groove 87, and the sleeve 89 is axially resisted by the first retaining spring 88 to prevent the sleeve 89 and the shrink sleeve 92 from loosening and shrinking.
  • the sleeve 92 remains in a fully contracted state.
  • connection method is different from that of Embodiment 1:
  • One end of the connecting core rod 80 provided with the wedge-shaped resisting portion 83 is sequentially passed through the circular through hole 94 of the connected member 93, and the circular through hole 96 of the connected member 95.
  • the connecting core rod 80 is provided with a portion of the wedge-shaped resisting portion 83 which is convexly connected.
  • the circular through hole 91 of the sleeve 89 and the connecting core receiving space 97 of the shrink sleeve 92 are passed through the connecting core rod 80.
  • One end of the wedge-shaped resisting portion 83 is mounted on the connecting core rod 80, and the shrink sleeve 92 is oriented.
  • One side of the connected member 95 protrudes from the sleeve 89, and applies a relative axial force to the positioning abutting portion 86 of the connecting core rod 80 and the sleeve 89; the sleeve 89 and the shrink sleeve 92 move synchronously toward the connected member 95, Until the shrink sleeve 92 abuts against the connected member 95, the sleeve 89, the shrink sleeve 92, the connected member 95, the connected member 93, and the positioning abutting portion 86 abut against each other, the wedge-shaped resisting portion 98 on the shrink sleeve 92 Corresponding to the corresponding wedge-shaped resisting groove 99 on the connecting core rod 80;
  • the first circlip 88 is then mounted in the first slot 87 and the sleeve 89 and the connecting ferrule 80 are held in a fixed position by the first circlip 88 against the sleeve 89 to prevent the sleeve 89 and the shrink sleeve 92 from coming loose.
  • the shrink sleeve 92 is maintained in a fully contracted state.
  • the shrink connection assembly further includes an outer spring 120 and an outer spring 121.
  • the connecting core rod 122 includes a stepped connecting core body, a radially annular wedge-shaped resisting portion 124 radially protruding on the outer circumference of the cylindrical small rod 123 connecting the core rod body, and a straight light rod portion connected to the small rod 123. 125, radially protruding from the positioning resisting portion 127 of the end of the cylindrical large rod 126 connecting the core body.
  • the connecting core body is composed of a small rod 123 and a large rod 126.
  • the outer side wall of the shrink member 128 includes a constricted conical surface 129 for driving the shrink sleeve 151 to contract, a cylindrical curved surface 130 connected to the small end of the conical conical surface 129, and a large end connected to the conical curved surface 129 for contraction.
  • a connecting curved surface 132 having an externally threaded portion 131, a conical curved surface 133 having a small end connected to the end surface of the connecting curved surface 132 and projecting the connecting curved surface 132, a cylindrical curved surface 134 connected to the large end of the conical curved surface 133, a large end and a cylindrical curved surface 130 connected to the conical conical surface 135, a plurality of inverted L-shaped protrusions 136 disposed on the end surface of the conical conical surface 135, the protrusions 136 and the end surface of the conical surface 135 form a second card slot 137, An outer spring receiving groove 138 that cooperates with the outer spring 120 on the outer circumference of the cylindrical curved surface 130, and an outer spring receiving groove 139 that is fitted to the outer spring 121 on the outer circumference of the cylindrical curved surface 134.
  • the sleeve 140 is provided with a shrink sleeve receiving space 141, a circular through hole 142 communicating with the shrink sleeve receiving space 141, and a rotation preventing groove 149 provided on the end surface of the sleeve 140.
  • the shrink sleeve housing space 141 includes a tapered hole 143 having a small end connected to the circular through hole 142, a receiving hole 145 provided with the internal thread portion 144 connected to the large end of the tapered hole 143, and a driving cone connected to the receiving hole 145 at the small end.
  • the limit mechanism is a thread locking mechanism, which is an external thread portion 131 on the shrink member 128 and an internal thread portion 144 that is screwed into the sleeve 140 on the male thread portion 131.
  • the inner spring 150 is mounted in the shrink sleeve 151.
  • the inner spring 150 is completely received in the inner spring receiving groove 152, and the inner spring 153 is mounted in the shrink sleeve 151.
  • the inner spring 153 is completely received in the inner spring receiving groove 154.
  • the outer spring 120 is mounted outside the shrink sleeve 151, and the outer spring 120 is completely received in the outer spring receiving groove 138; the outer spring 121 is mounted outside the shrink sleeve 151, and the outer spring 121 is completely received in the outer spring receiving groove 139.
  • the outer spring 120 and the outer spring 121 do not automatically separate the shrink members 128 that are held together to form the shrink sleeve 151.
  • the shrink sleeve 151 to which the inner spring 150, the inner spring 153 and the outer spring 120 and the outer spring 121 are mounted is mounted in the sleeve 140, and the shrink sleeve 151 is resisted by the elastic force of the inner spring 150 and the inner spring 153 radially outward. Inside the canister 140. The above process is completed at the factory.
  • the connecting core rod 122 is provided with one end of the wedge-shaped resisting portion 124 passing through the circular through hole 157 of the connected member 156, the circular through hole 159 of the connected member 158, and the connecting core rod 122 is provided with a wedge-shaped resisting portion. A portion of 124 protrudes from the connector 158.
  • the circular through hole 142 of the sleeve 140 and the connecting core receiving space 160 of the shrink sleeve 151 are passed through the connecting core rod 122.
  • One end of the wedge-shaped resisting portion 124 is mounted on the connecting core rod 122, and the connecting rod 122 is connected.
  • the positioning resisting portion 127 is axially resisted by the connected member 156 opposite thereto, and the shrink sleeve 151 is opposed thereto
  • the other member 158 is axially resisted, and is abutted by the connecting member 156 and the connected member 158.
  • the wedge-shaped abutting portion 124 of the connecting core rod 122 is opposite to the corresponding wedge-shaped resisting groove 161 of the shrink sleeve 151.
  • the wedge-shaped resisting portion 124 of the connecting core rod 122 extends into the corresponding wedge-shaped resisting groove 161 of the shrink sleeve 151 to form a snap, and the internal thread portion 144 and the external thread portion 131 of the thread locking mechanism are screwed together. Together, the sleeve 140 and the shrink sleeve 151 are prevented from coming loose, and the shrink sleeve 151 is maintained in a fully contracted state.
  • the second retaining spring 162 is mounted in the second latching slot 137 and resists the sleeve 140 by the second retaining spring 162.
  • connection method in turn includes the following steps:
  • the inner spring 150 is mounted in the inner spring receiving groove 152, and the inner spring 153 is mounted in the inner spring receiving groove 154; the outer spring 120 is mounted in the outer spring receiving groove 138, and the outer spring 121 is mounted on the outer spring.
  • the shrinking members 128 held together by the outer spring 120 and the outer spring 121 are not automatically separately assembled to form the shrink sleeve 151; the inner spring 150, the inner spring 153 and the outer spring 120, the outer spring will be mounted
  • the shrink sleeve 151 of the 12 is mounted in the sleeve 140, and the shrink sleeve 151 is resisted in the sleeve 140 by the elastic force of the inner spring 150 and the inner spring 153; the above process is generally completed at the factory or at the installation site. ;
  • One end of the connecting core rod 122 with the wedge-shaped resisting portion 124 is sequentially passed through the circular through hole 157 of the connected member 156, the circular through hole 159 of the connected member 158, and the connecting core rod 122 is provided with a portion of the wedge-shaped resisting portion 124 protrudingly connected.
  • the circular through hole 142 and the shrink sleeve 151 of the sleeve 140 that are mounted together are connected to the core rod accommodating space 160 through the connecting core rod 122.
  • One end of the wedge-shaped resisting portion 124 is mounted on the connecting core rod 122, and the shrink sleeve 151 is oriented One side of the connecting member 158 protrudes from the sleeve 140, and a relative axial force is applied to the positioning resisting portion 127 and the sleeve 140 of the connecting core rod 122, and the sleeve 140 and the shrink sleeve 151 are synchronously moved toward the connected member 158 until When the shrink sleeve 151 abuts against the connected member 158, and the sleeve 140, the shrink sleeve 151, the connected member 158, the connected member 156, and the positioning resisting portion 127 abut each other, the wedge-shaped resisting portion 124 on the connecting core rod 122 is connected.
  • the positioning resisting portion 127 of the connecting core rod 122 and the sleeve 140 exert an axial force in a relative direction, and the driving tapered hole 146 of the sleeve 140 slides on the conical curved surface 129 of the shrink sleeve 151, and the sleeve 140 drives the shrink sleeve.
  • 151 is contracted, and each of the flaps 128 is only moved radially.
  • the wedge-shaped abutting portion of the connecting core rods 122 extends into the corresponding wedge-shaped resisting grooves 161 of the shrink sleeve 151, and the surface and the surface resist each other to form a snap until the shrink sleeve 151 is not engaged. Further radial movement, the shrink sleeve 151 is in a fully contracted state;
  • the shrink sleeve 151 is in a fully retracted state, and the sleeve 140 is continuously rotated.
  • the small end of the drive tapered bore 146 of the sleeve 140 passes over the large end of the constricted curved surface 129 of the shrink sleeve 151, and the internal and external threads of the locking mechanism.
  • the sleeve 140 continues to slide a distance relative to the shrink sleeve 151 until the second slot 137 on the shrink sleeve 151 stops the rotating sleeve 140 over the end surface of the sleeve 140;
  • the threaded locking sleeve 140 and the shrink sleeve 151 are screwed through the internal thread portion 144 of the sleeve 140 and the external thread portion 131 of the shrink sleeve 151 to prevent the sleeve 140 and the shrink sleeve 151 from being loosened, so that the shrink sleeve 151 is completely contracted. status;
  • the second retaining spring 162 is mounted in the second latching slot 137 and resists the sleeve 140 by the second retaining spring 162 to prevent the sleeve 140 from reversing.
  • the plurality of projections 191 of the shrink sleeve 190 include a cylindrical curved surface 195 that fits with the circular through hole 194 connected to the shrink sleeve accommodation space 192, and is cylindrical.
  • the end of the curved surface 195 protruding sleeve 196 protrudes radially outwardly from a limiting portion 197 that limits the shrink sleeve 190 to the sleeve 196.
  • the maximum outer diameter of the limiting portion 197 is larger than the diameter of the circular through hole 194 connected to the shrink sleeve receiving space 192.
  • the 190 is mounted to the sleeve 196 by the inner spring 198, the elastic force in the radial direction of the inner spring 199, the limiting portion 197 and the contracting cone facing the axially opposite directions of the shrink sleeve 190.
  • the second card slot 200 is disposed on a cylindrical curved surface 202 that is connected to the small end of the conical curved surface 201 for contraction.
  • the shape of the single wedge-shaped abutting portion 203 on the cross section passing through the axis is a triangle; the shape of the single wedge-shaped resisting groove 204 on the cross section passing through the axis is a triangle matching the wedge-shaped abutting portion 203; in the fully contracted state of the shrink sleeve 190, the wedge-shaped resisting portion The 203 is in contact with the wedge-shaped abutment groove 204 through the two inclined faces of the triangle.
  • the shrink connection assembly further includes a circular tube 220.
  • An external thread portion 221 is disposed on the outer circumferential surface of the circular tube 220; and a side wall 222 of the circular tube 220 where the external thread portion 221 is not provided is provided with a single-lobed contraction receiving side hole 223 extending radially through the side wall 222.
  • a protruding portion 224 is provided on an end surface of the threaded portion 221, and a second engaging groove 225 is formed in the protruding portion 224.
  • the shrink member 226 is a four-lobed.
  • the outer side wall of the shrink member 226 includes a constricting cone for driving the shrink sleeve 227 to contract.
  • the inner side wall of the shrink member 226 includes a cylindrical curved surface 234 whose one end is fitted to the outer circumference of the side wall 222 of the circular tube 220, an outer circumference 237 that cooperates with the small rod 236 of the connecting core rod 235, and one end and the outer circumference of the side wall 222 of the circular tube 220. Fitted cylindrical surface 238.
  • a sleeve receiving space 240 is provided in the sleeve 239, and a threaded through hole 241 communicating with the shrink sleeve housing space 240 is provided.
  • the shrink sleeve housing space 240 includes a tapered bore 242 having a small end connected to the threaded through hole 241, a first cylindrical bore 243 connected to the large end of the tapered bore 242, and a drive tapered bore 244 having a small end connected to the first cylindrical bore 243, and
  • the second cylindrical hole 245 is connected to the large end of the tapered hole 244, and the driving tapered hole 219 is connected to the second cylindrical hole 245.
  • the limiting mechanism is a thread locking mechanism, which is a threaded through hole 241 in the sleeve 239 and an external threaded portion 221 screwed onto the circular tube 220 of the threaded through hole 241.
  • the limiting mechanism is a thread locking mechanism, which is a threaded through hole 241 in the sleeve 239 and an external threaded portion 221 screwed onto the circular tube 220 of the threaded through hole 241.
  • connection method is different from that of Embodiment 4:
  • the single-lobed contracting member 226 is mounted in the corresponding single-lobed contracting member 226 of the circular tube 220 to receive the side hole 223, and the outer spring 246 and the outer spring 247 are mounted outside the contracting member 226 to cause the contracting member 226 to be held together to form a contraction.
  • the sleeve 227; the inner spring 248 and the inner spring 249 are mounted in the shrink sleeve 227 to open the shrink sleeve 227 outwardly.
  • the shrink sleeve 227 In the uncontracted state of the shrink sleeve 227, the shrink sleeve 227 does not protrude from the inner wall of the round tube 220, and the shrink sleeve 227 The outer side wall 222 protrudes from the outer wall of the circular tube 220; the above process is generally completed at the factory or at the installation site;
  • the connecting rod 235 is provided with a wedge-shaped abutting portion 250 through the circular through hole 252 of the connecting member 251, the circular through hole 254 of the connecting member 253, the wedge-shaped resisting portion 250 of the connecting core rod 235 protrudes from the connecting member 253;
  • the round tube 220 and the shrink sleeve 227 which are mounted together are passed through the connecting core rod 235.
  • One end of the wedge-shaped resisting portion 250 is mounted on the connecting core rod 235, and the positioning resisting portion 257 and the sleeve 239 of the connecting core rod 235 are applied to each other.
  • the axial force of the direction until the shrink sleeve 227 abuts against the connected member 253, and the sleeve 239, the shrink sleeve 227, the connected member 253, the connected member 251, and the positioning resisting portion 257 abut against each other, the shrink sleeve 227
  • the upper wedge-shaped resisting groove 258 is opposite to the wedge-shaped resisting portion 255 of the connecting core rod 235;
  • the sleeve 239 is rotated to bring the shrink sleeve 227 into a fully retracted state.
  • the outer surface of the expansion member 280 has an arc shape.
  • a first contraction expansion projection 282 for contracting and expanding the shrink sleeve 281 is protruded from the outer surface of the expansion member 280, and is used for the second contraction expansion symmetrical with respect to the center position of the first contraction expansion projection 282.
  • the first contraction expansion projection 282 includes a contraction tapered surface 284, and an expansion conical recessed portion 285 for expanding and contracting the sleeve 281 is formed on a side of the first contraction expansion projection 282 facing away from the contraction conical surface 284.
  • the cylindrical connecting surface 286 of the converging tapered surface 284 and the expanding tapered recess 285 is joined.
  • the contraction taper 284 of the shrink sleeve 281 coincides with the taper direction of the expansion tapered recess 285.
  • the inner side surface of the expansion member 280 includes a cylindrical curved surface 289 that cooperates with the small rod 288 of the connecting core rod 287 and a cylindrical curved surface 304 of the large rod 290 of the hollow connecting core rod 287, which connects the cylindrical curved surface 289 and the cylindrical curved surface 304. Connection face 291.
  • the sleeve includes a first sleeve 292 and a second sleeve 293.
  • the first sleeve 292 includes a cylindrical first sleeve body 294, a circular through hole 295 penetrating through the first sleeve body 294, and an external thread portion 296 disposed on the outer circumferential surface of the first sleeve body 294.
  • the resisting portion 297 of the sleeve body 294 is disposed in the first shrink-up expansion receiving groove 298 of the first through-contracting projection 282 on the hole wall of the circular through-hole 295.
  • the second sleeve 293 includes a second sleeve body 299, a threaded counterbore 300 disposed in the second sleeve body 299, and a circular through hole 301 communicating with the threaded counterbore 300, protruding from the protrusion of the second sleeve body 299 302.
  • a second shrinkage expansion accommodating groove 303 that is provided on the hole wall of the circular through hole 301 and that engages with the second contraction expansion projection 283.
  • the first sleeve 292 and the second sleeve 293 are threadedly coupled to the threaded counterbore 300 by an externally threaded portion 296.
  • the second contraction expansion accommodating groove 303 and the first contraction expansion accommodating groove 298 are symmetrical about their center positions.
  • the limiting mechanism is a thread locking mechanism comprising an externally threaded portion 296 disposed on the first sleeve 292 and a threaded counterbore 300 disposed on the second sleeve 293.
  • the connecting core rod is a stepped connection on the mechanical device.
  • the shaft; the connected member is a mechanical part 330, a mechanical assembly 331, and a mechanical assembly 332.
  • the connecting shaft includes a threaded portion 333, a second engaging groove 334 provided at an end of the threaded portion 333, a cylindrical portion 335 which is in contact with the threaded portion 333 and has a smaller diameter than the threaded portion 333, and a wedge shape provided on the outer peripheral surface of the cylindrical portion 335
  • the abutting portion 361 has a small end that is in contact with the cylindrical portion 335 and protrudes from the conical portion 336 of the cylindrical portion 335.
  • the tapered surface of the conical portion 336 forms a positioning abutting portion that is in contact with the large end of the conical portion 336 and protrudes
  • the cylindrical portion 337 of the conical portion 33 which is in contact with the cylindrical portion 337 and has a smaller diameter than the cylindrical portion 338 of the cylindrical portion 337, is in contact with the cylindrical portion 338 and protrudes from the cylindrical portion 339 of the cylindrical portion 338,
  • a cylindrical portion 340 that is in contact with the cylindrical portion 339 and has a smaller diameter than the cylindrical portion 339, the stepped surface between the cylindrical portion 339 and the cylindrical portion 340 forms a positioning resisting portion 341 that is in contact with the cylindrical portion 340 and has a diameter smaller than that of the cylinder
  • the mechanical component 330 is mounted on the conical portion 336 and is fixed by the shrink sleeve 351.
  • the structure of the shrink sleeve 351, the sleeve 352 for driving the shrink sleeve 351, the second clip spring 353, and the like are the same as those of the first embodiment.
  • the mechanical assembly 331 is mounted on the cylindrical portion 340 and is fixed by the shrink sleeve 354, and the structure of the shrink sleeve 354, the sleeve 355 for driving the shrink sleeve 354, the second spring 356, and the like is the same as that of the first embodiment.
  • the mechanical assembly 332 is mounted on the cylindrical portion 347 and is fixed by the shrink sleeve 357.
  • the structure of the shrink sleeve 357, the sleeve 358 for driving the shrink sleeve 357, the second clip spring 359, etc. is different from that of the fourth embodiment in the wedge-shaped resist portion. 350 and the structure of the wedge-shaped resisting groove 360.
  • the structure of the wedge-shaped abutting portion 350 and the wedge-shaped abutting groove 360 is the same as that of the second embodiment.
  • connection method differs from Embodiment 1 in that:
  • the mechanical component 330 is mounted on the conical portion 336 of the connecting shaft from one end of the connecting shaft provided with the wedge-shaped resisting portion 361, and then fixed by the shrink sleeve 351 and the driving sleeve 352;
  • the mechanical component 331 is mounted on the cylindrical portion 340 of the connecting shaft from one end of the connecting shaft provided with the wedge-shaped resisting portion 350, and then fixed by the shrink sleeve 354 and the driving sleeve 355;
  • the mechanical assembly 332 is attached to the cylindrical portion 347 of the connecting shaft from one end of the connecting shaft provided with the wedge-shaped abutting portion 350, and is fixed by the shrink sleeve 357 and the driving sleeve 358.
  • the outer side wall of the shrink member 390 includes a constricted conical surface 392 for driving the shrink sleeve 391 to be contracted, and is connected to the large end of the conical curved surface 392 for contraction.
  • a cylindrical curved surface 393 axially extends through the conical surface 392 for contraction and the recess 394 of the cylindrical curved surface 393.
  • the groove bottom of the groove 394 is a cylindrical curved surface 395 that is concentric with the cylindrical curved surface 393.
  • the shrink sleeve accommodation space 397 of the sleeve 396 includes a circular hole 399 connected to the circular through hole 398, and a drive tapered hole 400 whose small end is connected to the circular hole 399.
  • a rib 401 that cooperates with the groove 394 is provided on the outer circumference of the circular hole 399 and the driving tapered hole 400.
  • the shrink sleeve accommodation space 397 of the sleeve 396 includes a circular hole 399 which is connected to the end surface of the circular through hole 398 and has a larger diameter than the circular through hole 398, and a contraction drive tapered hole 400 whose small end is connected to the circular hole 399, and the contraction drive
  • a circular hole 401 which is connected to the large end of the tapered hole 400, is protruded from the hole 401 and the rib of the shrinking driving tapered hole 406, and the rib 402 is engaged with the groove 394.
  • the inner circumferential surface of the ridge 402 is flush with the hole wall of the circular hole 399.
  • the connecting rod 420 is provided with a groove extending axially through the connecting rod 421 and the wedge-shaped resisting portion 422, and the bottom surface of the groove is small.
  • the outer peripheral surface of the rod is coplanar.
  • the stopper mechanism is a circular ring 432 provided on the outer circumference of the end portion of the sleeve 430 facing the one end of the connected member 431, and passes through the circular convex ring 432.
  • the counterbore 433 secures the rounded collar 432 to a fastener (not shown) that is attached to the connector 431.
  • the expansion member constituting the expansion sleeve of the present invention is two lobes or the like, the embodiment according to the present invention can be fully realized.
  • the connected member in the present invention is convenient for expression, and only shows a schematic view connected by a shrink-expandable fastening joint assembly.
  • the shrink-expandable fastening joint assembly of the present invention is equivalent to a bolt and a nut.
  • the shrink joint assembly of the present invention can be used where bolts and nuts can be used.

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Abstract

一种收缩连接组件、收缩连接结构及连接方法,收缩连接结构包括收缩连接组件(1),一个以上的被连接件;收缩连接组件包括连接芯杆(2),两瓣以上合抱连接芯杆(2)的收缩件(3)组成的收缩套(4),用于驱动收缩套(4)收缩的套筒(5),在收缩套(4)完全收缩状态防止套筒(5)和收缩套(4)松脱的限位机构;所述连接芯杆(2)包括楔形抵挡部(10)和定位抵挡部(13);收缩件(3)包括楔形抵挡槽(17)、收缩用锥面;在所述套筒(5)内设有收缩套(4)容置空间,在收缩套(4)容置空间的壁上设有驱动锥面;该结构在载荷大、震动大、高温或高低温交叉变化等恶劣情况下连接可靠。

Description

一种收缩连接组件、收缩连接结构及连接方法 技术领域:
本发明涉及一种可代替螺母和螺栓连接、机械静联接两个以上的物体的收缩连接组件、收缩连接结构及连接方法,特别是涉及一种可拆卸机械静联接飞机、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、汽车等等机械设备关键部位上的高要求、恶劣环境使用或载荷大的连接机械零件的收缩连接组件、收缩连接结构及连接方法。
背景技术:
现有的可拆卸机械静联接一般为螺纹连接、键连接、销连接、膨胀螺丝连接等,最广泛应用的为螺纹连接。
螺母和螺栓的螺纹连接都需要拧紧。螺纹连接的螺母和螺栓之间的连接力,主要表现为拧紧螺纹和螺栓时的预紧力产生的静摩擦力。因此对关键物体的螺纹连接,必须控制预紧力的大小,以保证工作的可靠性。
参考连祖虎发表的“螺纹连接的失效形式及原因分析”一文的分析,螺纹连接的失效形式及原因分析具体为以下几个方面:
一是因载荷过大引起的螺纹连接的失效。螺纹连接的螺栓和螺母在拧紧时,螺栓因承受拉力引起伸长,导致螺母支承面附近的螺纹承受很大载荷,而且螺母承受的压缩载荷也产生同样的载荷集中。外载增加时,螺栓继续弹性伸长,被连接件压缩变形相应减小(即紧固力减小),甚至消失;或因螺栓伸长(应变)超过了弹性极限,因塑性屈服而产生永久变形,使预紧力减少,导致连接失效(畸变、断裂、丧失紧密性等)。
二是常见的疲劳破坏导致的螺纹连接的失效。螺纹连接受交变载荷作用会使连接中的预紧力变化导致连接松脱。当循环交变载荷作用在仅连接的螺栓上时,螺栓因收较大的交变应力产生疲劳裂纹甚至断裂。疲劳失效通常发生在应力集中较严重的地方,如:螺杆头部、螺纹收尾部、螺杆支撑平面所在处的螺纹、螺杆的过渡圆角处等。
三是高温下导致螺纹连接失效的蠕变。蠕变是指金属材料在恒定温度和恒定应力的长期作用下,随着时间的延长材料缓慢地发生塑性变形。蠕变可以在小于材料的屈服极限的应力下发生。在低温下,蠕变并不明显,只有达到一定的温度(材料熔化温度的3/10左右)才变得显著。蠕变会导致高温下的螺纹连接失效。为了消除蠕变,当连接在室温下装配时采取补偿措施,如提高预紧力、或对螺栓再预紧等。
四是微动磨损导致螺纹连接的失效。微动磨损是由一承受重载荷的表面,在另一表面上做很小相对运动造成的。承载振动的螺纹连接最易产生微动磨损。
现有的对螺纹连接的防松,一是利用附加静摩擦力进行防松,如增加弹簧垫圈,或在低速重载场合下利用两螺母的对顶作用即对顶螺母防松,或在螺母中嵌有尼龙圈等;二是采用专门防松元件、或物质如防松胶水等;三是最主要的防松方式,就是提高螺栓螺母的抗拉强度,从4.9级、8.8级、10.9级、12.9级、14.9级一直不断提高。尽管采取了很多种方式改善螺纹连接的连接效果,但是物体间的连接还是依靠静摩擦力,无法从根本上解决上述几种螺纹连接的失效,如螺杆拉断、断头、螺纹的压溃和剪断、磨损后的滑扣等。
物体间的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
Figure PCTCN2015086416-appb-000001
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等等,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。
发明内容
本发明要解决的技术问题是,为了克服现有全球广泛使用的可拆卸机械静联接的螺母和螺栓的螺纹连接技术中存在的问题。也就是普通螺母和螺栓依靠静摩擦力将物体连接在一起,在载荷大,特别是轴向载荷大或震动大或高温或高低温交叉变化等恶劣场合、上述结构的连接易失效引起事故。
为解决上述技术问题,本发明提供一种收缩连接组件、收缩连接结构及连接方法,在轴向方向通过抵挡力将被连接件连接在一起、即使在载荷特别大特别是轴向载荷特别大、或震动特别大、或高温或高低温交叉变化等恶劣场合、连接也不会失效,连接非常可靠,且可替代螺栓螺母使用。
实现本发明的一种收缩连接组件,包括连接芯杆,两瓣以上合抱连接芯杆的收缩件组成的收缩套,用于驱动收缩套收缩的套筒,在收缩套完全收缩状态防止套筒和收缩套松脱的限位机构;
连接芯杆包括连接芯杆本体和径向凸设在连接芯杆本体的外周上的独立环状的楔形抵挡部;在连接芯杆本体上形成定位抵挡部;
收缩件包括收缩件本体,设置在收缩件本体的内侧与楔形抵挡部配合的楔形抵挡槽,设置在收缩件本体外侧用来驱动收缩套收缩的收缩用锥面;
在收缩套内设有连接芯杆容置空间;楔形抵挡槽设置在连接芯杆容置空间的壁上;收缩套内的楔形抵挡槽形成断开的独立环状;
在套筒内设有收缩套容置空间,在收缩套容置空间的壁上设有与每瓣收缩件的收缩用锥面配合的驱动锥面。
作为方案一的改进,单个楔形抵挡部包括导向段,与导向段相连的抵挡段,连接抵挡段和连接芯杆本体的连接段,抵挡段与连接芯杆的轴线垂直;单个楔形抵挡槽包括与收缩套的连接芯杆容置空间壁相连的两导向面,与两导向面相连、与收缩套的轴线垂直的两垂直面,连接两垂直面的避空用连接面;在收缩套完全收缩状态,导向段与避空用连接面间隙配合,抵挡段被垂直面抵挡,连接段与两导向面间隙配合。
作为方案一的改进,楔形抵挡部凸出连接芯杆本体的高度小于楔形抵挡槽的深度;在收缩套完全收缩状态,连接芯杆本体与收缩套的连接芯杆容置空间壁紧配合。
这种结构的楔形抵挡部和楔形抵挡槽,连接抵挡受力完全是在轴线方向,采用面与面的抵挡效果更好。而且还能够使连接芯杆本体与收缩套的连接芯杆容置空间壁紧配合产生静摩擦力,使收缩套与连接芯杆的连接力不但包括抵挡力,还包括静摩擦力,减少楔形抵挡部上的受力,连接效果更好。
作为方案一的改进,单个楔形抵挡部在经过轴线的截面上的形状为尖角形或梯形或弧形;楔形抵挡槽在经过轴线的截面上的形状为与楔形抵挡部配合的尖角形或梯形或弧形;楔形抵挡部与楔形抵挡槽通过尖角形两个斜面面接触或梯形的两个斜面面接触、或通过弧形面接触。
尖角形的楔形抵挡部和楔形抵挡槽、或梯形的楔形抵挡部和楔形抵挡槽、或弧形的楔形抵挡部和楔形抵挡槽,可以使被连接件、收缩套轴向的配合完全没有间隙,降低加工精度。
作为方案一的改进,连接芯杆还包括与驱动锥面大端相连的直光杆部,直光杆部的轴向长度大于驱动锥面的轴向长度;在收缩套完全收缩状态,连接芯杆上的驱动锥面与收缩套上相应的收缩用锥面之间在轴线方向存在设定距离。
驱动锥面与收缩套上相应的收缩用锥面之间在轴线方向存在设定距离,因此可以设定在收缩套完全收缩后,套筒在收缩套上还继续滑动一段距离。采用这种结构,在工作状态,即使套筒朝向与套筒驱动收缩套收缩的运动方向相反的方向发生了部分位移,收缩套会继续保持收缩状态,从而可确保收缩套在恶劣的工作环境下保持在完全收缩状态。即是确保楔形抵挡部保持在楔形抵挡槽内,从而使用非常可靠,不会出现收缩连接组件连接失效的安全事故。
作为方案一的改进,还包括内弹簧,在收缩套与连接芯杆配合的连接芯杆容置空间的孔壁上径向设有内弹簧容置槽,在收缩套还没有安装到连接芯杆上之前,收缩套安装在套筒内,通过内弹簧径向向外的弹力将收缩套抵挡在套筒内,内弹簧完全容置在内弹簧容置槽内。
这样在收缩套还没有安装到连接芯杆上之前,在工厂就将收缩套与套筒就安装在一起了,运输过程中也不会散开。使用时,安装在一起的收缩套和套筒就相当于螺母,连接芯 杆就相当于螺杆,安装时将连接芯杆设有楔形抵挡部的一端穿过被连接件,再将安装在一起的收缩套和套筒安装在连接芯杆上,安装非常方便。
作为方案一的改进,还包括外弹簧,在每瓣收缩件的外周面上径向设有外弹簧容置槽,两瓣以上的收缩件通过外弹簧合抱在一起组成收缩套,外弹簧完全容置在外弹簧容置槽内。
用外弹簧将两瓣以上的收缩件安装在一起组成收缩套使其不分开,收缩套在工厂就装配好,运输过程中也不会散开,使用时方便、快速、简易。
作为方案一的改进,限位机构为螺纹锁紧机构,包括轴向设置在连接芯杆本体上的螺纹部和设置在套筒上与收缩套容置空间连通的螺纹孔;套筒的螺纹孔与接芯杆的螺纹部配合将套筒固定在连接芯杆上,从而在收缩套完全收缩状态将收缩套锁紧固定在套筒内和连接芯杆上。
设有螺纹孔的套筒的外周面一般为六角形。收缩套的螺纹孔与连接芯杆的螺纹部配合,安装起来特别方便,只需将连接芯杆穿过被连接件,再将收缩套和套筒安装在连接芯杆上,旋转套筒,套筒驱动收缩套收缩,这样收缩用连接组件即可将被连接件连接在一起。在连接芯杆上设有楔形抵挡部和螺纹部,可以一次装夹加工完成,降低成本;套筒上的螺纹孔加工也方便,加工成本也低。
作为方案一的改进,收缩套容置空间包括驱动锥面和与驱动锥面大端相连的柱孔,在收缩套容置空间的柱孔的孔壁上径向凸设有抵挡部;收缩套还包括与收缩用锥面大端相连、并与收缩套容置空间的柱孔配合的柱面,在收缩套柱面的外周上设有与套筒上的抵挡部配合的抵挡槽。
内弹簧的弹力对收缩套施加朝向套筒的径向抵挡力,抵挡部对收缩套施加轴向的抵挡力,从而使收缩套更可靠地安装在套筒内。抵挡槽应设置比较浅,抵挡部伸入抵挡槽内一点点就可以了。
作为方案一的改进,收缩套容置空间还包括与收缩套容置空间相连的柱孔,收缩套还包括与柱孔配合的柱面,在柱面凸出套筒的端部径向向外凸设有将收缩套限位在套筒上的限位部;在收缩套安装在套筒内并被内弹簧撑开的状态,限位部的最大外径大于与收缩套容置空间相连的柱孔的孔径;收缩套通过内弹簧向外的径向方向的弹力、限位部和收缩用锥面对收缩套轴向两个相反方向的抵挡限位与套筒安装在一起;限位机构包括设置在套筒的收缩套容置空间壁上的内螺纹部和设置在收缩套的外侧壁上的外螺纹部,套筒的螺纹孔与收缩套的螺纹部配合将套筒固定在收缩套上,使收缩套保持完全收缩状态。
收缩套通过内弹簧向外的径向方向的弹力、限位部和收缩用锥面对收缩套轴向两个相反方向的抵挡限位与套筒安装在一起,从而将收缩套与套筒安装在一起不分开,这样收缩套和套筒事先在工厂装配在一起,运输过程中也不会散开,使用时将收缩套套在连接芯杆上,向套筒施加轴向方向的力使收缩套完全收缩后,再通过收缩套上的螺纹部与套筒的螺纹孔螺纹配合、将套筒与收缩套固定在一起,从而在收缩套完全收缩状态将收缩套锁紧固定在套筒内和连接芯杆上,这样安装起来也很方便,操作简单。
作为方案一的改进,还包括圆管;限位机构为螺纹锁紧机构,包括设置在套筒上与收缩套容置空间连通的螺纹孔,设置在圆管外周面上与套筒的螺纹孔配合的外螺纹部;在圆管的侧壁上径向设有单瓣收缩件容置侧孔。
作为方案一的改进,在收缩套外周上凸设有用来收缩和膨胀收缩套的第一收缩膨胀用凸出部,第一收缩膨胀用凸出部包括收缩用锥面,在第一收缩膨胀用凸出部背离收缩用锥面的一侧形成用来膨胀收缩套的膨胀用锥形凹陷部,收缩套的收缩用锥面与膨胀用锥形凹陷部的锥度方向一致;收缩套容置空间包括与第一收缩膨胀用凸出部配合的第一收缩膨胀用容置槽,第一收缩膨胀用容置槽的两槽壁形成用来收缩收缩套、与收缩套的收缩用锥面配合的驱动锥面,及用来膨胀收缩套、与收缩套的膨胀用锥形凹陷部配合的膨胀用锥面。设有相互配合的膨胀用锥形凹陷部和膨胀用锥面,在拆卸时,收缩套上的膨胀用锥形凹陷部与收缩套筒上的膨胀用锥面配合,使收缩套收缩,拆卸更容易、更可靠,确保收缩套在拆卸过程中不会损坏。
作为上述方案的改进,套筒包括第一套筒和第二套筒;与第一收缩膨胀用凸出部配合的第一收缩膨胀用容置槽设置在第一套筒上;限位机构为螺纹锁紧机构,包括设置在第一套筒的外周上的螺纹部,设置在第二套筒上与第一套筒的螺纹部配合的螺纹孔;在收缩套的外周上还设有与第一收缩膨胀用凸出部关于其中心位置对称的第二收缩膨胀用凸出部,收缩套容置空间还包括设置在第二套筒的上、与第二收缩膨胀用凸出部配合的第二收缩膨胀用容置槽。
作为方案一的改进,限位机构为安装在套筒与连接芯杆之间的限位件,及设置在套筒上的限位件抵挡部或设置在连接芯杆上的限位件抵挡部;在收缩套完全收缩状态,限位件和限位件抵挡部安装在一起,套筒的一侧被收缩套轴向限位,套筒的另一侧被限位件轴向限位,使套筒和连接芯杆保持固定位置。限位机构为安装在套筒与连接芯杆之间的限位件,结构简单,成本低。
作为方案十四的改进,限位件为第一卡簧,限位件抵挡部为设置在套筒上的第一卡槽或设置在连接芯杆上的第一卡槽。限位件为第一卡簧,限位件抵挡部为第一卡槽,限位效果好,安装方便。
作为方案一的改进,限位机构为螺纹锁紧机构;还设有防止螺纹锁紧机构反转的第二卡簧,及设置在套筒上的第二卡槽或设置在连接芯杆上的第二卡槽;在收缩套完全收缩状态,第二卡簧安装在第二卡槽内,使收缩套处于完全收缩状态不变。
设有防止螺纹锁紧机构反转的第二卡簧及在第二卡槽,在工作状态完全确保收缩套处于完全收缩状态不变,从而完全确保在工作状态收缩连接组件的连接完全可靠,做到万无一失。
作为方案一的改进,在每瓣收缩件外侧设有轴向的凸条或凹陷部,收缩用锥面设置在收缩件的凸条或凹陷部上;在套筒上设有与每瓣收缩件上的凸条配合的凹陷部、或与每瓣收缩件上的凹陷部配合的凸条,驱动锥面设置在套筒凸条或凹陷部上。
在收缩件上设有带收缩用锥面的凸条,在套筒上设有带驱动锥面的凹陷部,在被连接件上的通孔的孔径和被连接件上的孔的孔径不变的情况下,收缩件上的凸条相当于增加了加强筋,从而大大提高收缩套可承受的轴向载荷;在套筒上设有带驱动锥面的凸条,在收缩件上设有带收缩用锥面的凹陷部,在被连接件上的通孔的孔径和被连接件上的孔的孔径不变的情况下,可大大增加收缩件的厚度,从而大大提高收缩套可承受的轴向载荷。
作为方案一的改进,在收缩套完全收缩的状态,套筒上的所述的收缩套容置空间的侧壁包括对收缩套径向限位分布在同一圆周面上的圆柱形曲面,所述收缩套与收缩套容置空间对收缩套径向限位的圆柱形曲面配合的面为分布在同一圆周面上的圆柱形曲面,套筒与收缩套径向通过面与面接触紧配合或均匀间隙配合;所述的连接芯杆容置空间的侧壁包括分布在同一圆周面上的圆柱形曲面,圆柱形曲面与设有楔形抵挡部的连接芯杆本体外周面通过面与面接触紧配合或与设有楔形抵挡部的连接芯杆本体外周面均匀间隙配合。
作为方案一的改进,连接芯杆为仅起连接作用的连接件,定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;被连接件为两个以上,收缩连接组件为收缩紧固连接组件。
作为方案一至十七的共同改进,连接芯杆为机械设备上的阶梯状的连接轴;被连接件为一个以上安装在连接轴上的机械零件;定位抵挡部为连接芯杆上的阶梯面。
连接芯杆为机械设备的连接轴,通过连接轴上的楔形抵挡槽伸入到收缩套上的楔形抵挡槽的抵挡力、和定位抵挡部对机械零件的抵挡力、收缩套对机械零件的抵挡力将机械零件固定在连接轴上,相对于直接使用螺母与连接轴上的螺纹部配合来固定机械零件,能够承受很大的轴向力,连接更可靠,连接轴不易被损坏。
作为方案十八的改进,在连接芯杆本体两处以上的外周上设有楔形抵挡部,在每处楔形抵挡部上设有与之配合的收缩套,与收缩套配合的套筒,及在收缩套完全收缩状态防止套筒和收缩套松脱的限位机构。
作为方案一至十七的共同改进,收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
连接芯杆为仅起连接作用的连接件,定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;
连接芯杆设有楔形抵挡部的一端穿过全部被连接件的通孔,连接芯杆设有楔形抵挡部的部分凸出被连接件;
收缩套安装在连接芯杆上,套筒安装在收缩套外,连接芯杆的定位抵挡部由与其相对的一个被连接件轴向抵挡,收缩套由与其相对的另一个被连接件轴向抵挡,两个以上的被连接件抵靠在一起,连接芯杆的楔形抵挡部与收缩套相应的楔形抵挡槽正对;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,限位机构防止套筒和收缩套松脱、使收缩套保持在完全收缩状态;在收缩套完全收缩状态,连接芯杆的定位抵挡部对与其相对的一个被连接件轴向抵挡,收缩套对与其相对的另一个被连接件轴向抵挡,收缩连接组件将两个以上被连接件连接固定 在一起。
作为方案一至十七的共同改进,收缩连接结构还包括套在连接芯杆上、消除轴向间隙的波形弹簧或弹性垫圈,波形弹簧或弹性垫圈安装在定位抵挡部与被连接件之间、或安装在收缩套和被连接件之间。
波形弹簧或弹性垫圈,可以消除连接芯杆上的楔形抵挡部与收缩套上的楔形抵挡槽因配合需要和加工误差产生的间隙,使收缩连接组件、被连接件在连接芯杆的轴线方向紧配合,连接固定效果更好。
作为方案一至十七的共同改进,收缩连接结构还包括一个以上的被连接件,被连接件为机械零件;
连接芯杆为机械设备上的阶梯状的连接轴;定位抵挡部为连接芯杆上的阶梯面;
在机械零件上设有与连接芯杆配合的通孔;
连接芯杆设有楔形抵挡部的一端穿过机械零件的通孔,机械零件被连接芯杆的定位抵挡部轴向抵挡,连接芯杆设有楔形抵挡部的部分凸出机械零件;
将收缩套安装在连接芯杆上,套筒安装在收缩套外,收缩套被机械零件背离定位抵挡部的面抵挡限位,定位抵挡部、收缩套、机械零件抵靠在一起,楔形抵挡槽与相应的楔形抵挡部正对;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,限位机构防止套筒和收缩套松脱、使收缩套保持在完全收缩状态;在收缩套完全收缩状态,连接芯杆的定位抵挡部对机械零件与其相对的面轴向抵挡,收缩套对与机械连接与其相对的面轴向抵挡,收缩套、套筒、限位机构将机械零件连接固定在连接芯杆上。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括二个以上的被连接件;在被连接件上均设有与连接芯杆配合的通孔;连接芯杆为仅起连接作用的连接件,定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;
连接方法包括:
将连接芯杆设有楔形抵挡部的一端穿过全部被连接件的通孔,连接芯杆设有楔形抵挡部的部分凸出被连接件;
将收缩套、连接芯杆、套筒安装在一起;收缩套安装在连接芯杆上,套筒安装在收缩套外;驱动套筒,套筒、收缩套、全部被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
套筒驱动收缩套收缩,套筒继续向被连接件方向运动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,收缩件的楔形抵挡部伸入连接芯杆相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括一个以上的机械零件;
连接芯杆为机械设备上的阶梯状的连接轴;
在机械零件上设有与连接轴配合的通孔;
连接方法包括:
将机械零件从连接轴设有楔形抵挡部的一端安装在连接轴上,连接轴设有楔形抵挡部的部分凸出机械零件;
将收缩套、连接轴、套筒安装在一起,收缩套安装在连接轴上,套筒安装在收缩套外;
驱动套筒,套筒、收缩套、机械零件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接轴上相应的楔形抵挡槽正对;
驱动套筒,套筒驱动收缩套收缩,套筒继续向机械零件方向运动,收缩套由机械零件抵挡无轴向方向的运动仅径向方向收缩,收缩件的楔形抵挡部伸入连接轴相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态, 套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接轴的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接轴安装在一起,收缩套对与其相对的机械零件轴向抵挡,连接轴的定位抵挡部对与其相对的机械零件轴向抵挡,收缩连接组件与机械零件连接固定在一起。
一种收缩连接结构的连接方法,连接方法包括:
还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
限位机构为螺纹锁紧机构,包括轴向设置在连接芯杆本体上的螺纹部,和设置在套筒上与收缩套容置空间连通的螺纹孔;
连接方法包括:
将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
将收缩套、连接芯杆、套筒安装在一起,收缩套安装在连接芯杆上,套筒安装在收缩套外,收缩套的螺纹孔螺纹连接在连接芯杆的螺纹部上;
对连接芯杆的定位抵挡部施加朝向套筒方向的轴向力,同时旋转套筒,通过套筒上的螺纹孔与连接芯杆本体上的螺纹部螺纹配合,套筒向被连接件方向运动,直至套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
继续对连接芯杆的定位抵挡部施加朝向套筒方向的轴向力、同时旋转套筒,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动,仅在径向方向收缩;连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止旋转或继续旋转使套筒继续相对收缩套滑动一段距离停止运动;
通过套筒上的螺纹孔与连接芯杆本体上的螺纹部螺纹锁紧防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;收缩连接组件还包括圆管;限位机构为螺纹锁紧机构,包括设置在套筒上与收缩套容置空间连通的螺纹孔,设置在圆管外周面上与套筒的螺纹孔配合的外螺纹部;在圆管的侧壁上径向设有单瓣收缩件容置侧孔;
连接方法包括:
将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件,定位抵挡部、被连接件抵靠在一起;
将收缩套、套筒、圆管、连接芯杆安装在一起;将单瓣收缩件安装在圆管的相应的单瓣收缩件容置侧孔内,安装在一起的圆管和收缩套安装在连接芯杆上,套筒安装在圆管和收缩套外,收缩套朝向被连接件的一侧凸出套筒并抵靠在被连接件上,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
旋转套筒,通过套筒上的螺纹孔与圆管上的螺纹部螺纹配合,套筒向被连接件方向运动,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止旋转或再继续旋转使套筒继续相对收缩套滑动一段距离停止运动;
通过套筒上的螺纹孔与圆管上的螺纹部螺纹锁紧防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;限位机构为安装在套筒与连接芯杆之间的限位件;
连接方法包括:
将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
将收缩套、连接芯杆、套筒安装在一起;收缩套安装在连接芯杆上,套筒安装在收缩套外;对连接芯杆的定位抵挡部和套筒施加相对方向的轴向力,套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
再对对连接芯杆的定位抵挡部和套筒施加相对方向的轴向力,套筒向被连接件方向运动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;
再装上限位机构,限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;收缩连接组件还包括内弹簧和外弹簧;在收缩套与连接芯杆配合的连接芯杆容置空间的孔壁上径向设有内弹簧容置槽,在每瓣收缩件的外周面上径向设有外弹簧容置槽;
连接方法包括:
合抱在一起的收缩件通过外弹簧安装在外弹簧容置槽内组成收缩套安装在套筒内,并使内弹簧安装在收缩套内的内弹簧容置槽内;
连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
将安装在一起的套筒和收缩套安装在连接芯杆上;套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
套筒驱动收缩套收缩,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动,仅在径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩套对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
这种收缩连接结构的连接方法,由于在工厂套筒和收缩套安装在一起,将收缩连接组件与连接固定被连接件时,连接芯杆就相当于螺杆,安装在一起的收缩套和套筒就相当于螺母,使用非常简单、方便。
一种收缩连接结构的连接方法,连接方法包括:
收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;收缩连接组件还包括外弹簧;在每瓣收缩件的外周面上径向设有外弹簧容置槽;
连接方法包括:
将收缩件通过外弹簧合抱在一起组成收缩套,外弹簧完全容置在外弹簧容置槽内;
连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
将安装在一起收缩套安装在连接芯杆上,套筒安装在收缩套外;收缩套朝向被连接件的一侧凸出套筒并抵靠在被连接件上,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
套筒驱动收缩套收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱, 使收缩套保持在完全收缩状态;
在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
本发明的有益效果是:
在收缩套完全收缩状态,通过连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,通过收缩套对与其相对的另一被连接件轴向抵挡,收缩连接组件将被连接件连接固定在一起。这种结构具有多项的优点。
第一,这种收缩连接结构中的收缩连接组件与被连接件的连接力是依靠连接芯杆的定位抵挡部作用在被连接件上的轴向抵挡力、连接芯杆的楔形抵挡部作用在收缩套的楔形抵挡槽的轴向抵挡力、收缩套作用在被连接件的轴向抵挡力,而不是依靠螺纹连接的预紧静摩擦力、或收缩螺丝或收缩螺栓的胀紧静摩擦力,连接力非常大。
收缩套与连接芯杆之间轴向无预紧力。相对于螺纹连接,收缩套和连接芯杆无需承受预紧载荷,因此能在载荷大特别是轴向载荷大、振动大、高温等环境下均不会引起连接失效。相对于使用螺钉、螺栓结构的机械静联接是依靠预紧与被连接件产生静摩擦力连接的优点是,能完全克服因载荷过大、疲劳破坏、高温下的蠕变、微动磨损等引起的几种常见的连接失效形式。相对于使用膨胀螺钉或膨胀螺栓仅依靠膨胀后对被连接件壁孔内壁产生较大的径向静态挤压力、径向挤压力产生的静摩擦力连接的优点是,在载荷较大或有震动的场合,不会因微量滑动摩擦导致连接失效。本发明彻底打破了现有的螺纹连接的螺钉或螺栓机械静联接依靠预紧产生的静摩擦力、膨胀螺钉或膨胀螺栓的机械静联接依靠收缩产生的胀紧静摩擦力或依靠收缩套变形产生的抵挡力来连接物体的惯性思维。
第二,连接芯杆的楔形抵挡部和收缩套相应的楔形抵挡槽是事先加工出来的,不是依靠收缩套收缩变形形成的。收缩套设计成两瓣(其中收缩套为三瓣的效果最好)以上,在收缩过程中收缩套不会变形,由此可以带来许多益处。这种结构的优点是:其一,楔形抵挡部的个数和形状可以根据受力情况自由设计,同时收缩套上的楔形抵挡槽的位置也根据收缩套的结构、被连接件的厚度来事先设计,因此能根据需要承受很大的外力且连接很可靠;其二,在收缩套未完全收缩状态、将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆的定位抵挡部、收缩套由被连接件相背的两个面抵挡,因此收缩套上的楔形抵挡部与收缩套内相应的楔形抵挡槽正对,这样在收缩套收缩过程中,收缩套径向方向运动,楔形抵挡部能准确无误地进入楔形抵挡槽,安装时非常方便、容易,不需要特别操作技巧,大大降低操作人员的操作要求;而且楔形抵挡部能与楔形抵挡槽精确配合,且楔形抵挡部与楔形抵挡槽相互贴合的配合部为面配合,因此能大大减少应力集中;其三,使用范围广,不需要被连接件的材料硬度要远低于收缩连接组件的材料硬度,也不需要收缩连接组件与被连接件间需要较大的摩擦系数,完全可替代螺钉或螺栓使用,能用于飞机、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、汽车等等的受到很大的载荷特别是轴向载荷、或很高的温度或冷热交叉变化温度、或很大的振动等工作环境下的关键部位的机械零件的连接。
第三,通过连接芯杆的定位抵挡部由被连接件抵挡,通过套筒将收缩套收缩、使连接芯杆上的楔形抵挡部伸入到收缩套的楔形抵挡槽内,由于连接芯杆上的楔形抵挡部和收缩套上的楔形抵挡槽各自独立,不是螺纹配合,收缩套与连接芯杆不会滑丝松动(不会反转松脱),因此通过收缩连接组件连接被连接件非常可靠;而套筒只是起到将收缩套收缩的作用,不承受将被连接件连接的连接力,在收缩套完全收缩状态套筒的受力非常小,即使套筒使用螺纹连接也几乎不可能引起螺纹连接的失效,因此在收缩套完全收缩状态套筒与收缩套的连接、或套筒与连接芯杆的连接也非常可靠,而且还很容易实现对连接芯杆永不脱落固定在收缩套上,从而实现被连接件与被连接件在工作状态下的连接永不脱落。
第四,由于在收缩过程中收缩套没有变形,连接芯杆也没有嵌入到收缩套中去,收缩套与连接芯杆的径向连接力非常小,收缩套上的楔形抵挡槽、连接芯杆的楔形抵挡部在工作状态也几乎不可能损坏;因此拆卸时,只需将套筒脱离收缩位置,不需要很大的力就可将收缩件与连接芯杆分离,拆卸时不会损坏收缩连接组件,也不会损坏被连接件,不但收缩连接组件可多次重复使用,而且被连接件也不会因与收缩连接组件连接的位置受到损坏需重新加工或报废。
第五,当连接芯杆为仅起连接作用的连接件,定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头,收缩连接组件可设计成标准件,连接芯杆相当于螺栓,收缩套和套筒安装在一起相对于螺母,使用起来很方便,成本大大降低。在被连接件上不需要加工抵挡结构,进一步降低成本。连接芯杆为一个整体式的实心杆,相比空心的膨胀套,能承受更大的力。
附图说明
图1是本发明实施例1的收缩连接组件的立体示意图。
图2是本发明实施例1的收缩连接结构的立体分解示意图。
图3是本发明实施例1的收缩连接结构、在收缩套未收缩状态的主视图。
图4是图1的A-A的旋转剖剖视图。
图5是本发明实施例1的收缩连接结构在收缩套完全收缩状态的主视图。
图6是图5的B-B的剖视图。
图7是本发明实施例2的收缩连接结构在收缩套未收缩状态过其中一瓣收缩件的中心位置的剖视图。
图8是本发明实施例3的收缩连接结构在收缩套未收缩状态过其中一瓣收缩件的中心位置的剖视图。
图9是本发明实施例4的收缩连接结构的立体分解示意图。
图10是本发明实施例4的收缩连接结构在收缩套未收缩状态过其中一瓣收缩件的中心位置的剖视图。
图11是本发明实施例4的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图12是本发明实施例5的收缩连接组件的立体示意图。
图13是本发明实施例5的收缩连接结构的立体分解示意图。
图14是本发明实施例5的收缩连接结构在收缩套未收缩状态过其中一瓣收缩件的中心位置的剖视图。
图15是本发明实施例5的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图16是本发明实施例6的收缩连接结构的立体分解示意图。
图17是本发明实施例6的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图18是本发明实施例7的收缩连接结构的立体分解示意图。
图19是本发明实施例7的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图20是本发明实施例7的收缩连接结构在收缩套未收缩状态过其中一瓣收缩件的中心位置的剖视图。
图21是本发明实施例8的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图22是图21的I部放大示意图。
图23是图21的II部放大示意图。
图24是图21的III部放大示意图。
图25是本发明实施例9的收缩连接组件的立体分解示意图。
图26是本发明实施例9的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图27是本发明实施例10的收缩连接组件的立体分解示意图。
图28是本发明实施例10的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
图29是本发明实施例11的收缩连接组件的立体分解示意图。
图30是本发明实施例11的收缩连接结构在收缩套完全收缩状态过其中一瓣收缩件的中心位置的剖视图。
具体实施方式
实施例1
如图1、图2所示,一种收缩连接组件1,包括连接芯杆2,三瓣合抱连接芯杆2的收缩件3组成的收缩套4,用于驱动收缩套4收缩的套筒5,在收缩套4完全收缩状态防止套 筒5和收缩套4松脱的限位机构、内弹簧6、内弹簧7。
如图2所示,连接芯杆2包括由圆柱形的小杆9和圆柱形的大杆12形成的阶梯状的连接芯杆本体8,径向凸设在连接芯杆本体8的圆柱形小杆9的外周上的独立环状的楔形抵挡部10,与小杆9相连且径向凸出小杆9的螺纹端11,径向凸设在连接芯杆本体8的圆柱形大杆12端部的六角头定位抵挡部13,设置在螺纹端11的端面上的多个倒L形的凸起14,凸起14与螺纹端11的端面形成第二卡槽15。单个楔形抵挡部10在经过轴线的截面上的形状为梯形。
如图2、图3所示,收缩件3的内侧壁为阶梯形的圆柱形曲面18和圆柱形曲面42。在收缩件3的圆柱形曲面18的侧壁上设有与楔形抵挡部10配合的楔形抵挡槽17和内弹簧容置槽33,在圆柱形曲面42上设有内弹簧容置槽32。单个楔形抵挡槽17在经过轴线的截面上的形状为与楔形抵挡部10配合的梯形。收缩件3的外侧壁包括用来驱动收缩套4收缩的收缩用圆锥形曲面19,与收缩用圆锥形曲面19大端相连的圆柱形曲面20,小端与圆柱形曲面20相连的收缩用圆锥形曲面21,与收缩用圆锥形曲面21大端相连的圆柱形曲面22。收缩用圆锥形曲面19和收缩用圆锥形曲面21形成收缩用锥面。在收缩套4圆柱形曲面20上设有抵挡槽23。
如图2所示,套筒5的外侧壁为正六边体。在套筒5内设有收缩套容置空间,和与收缩套容置空间连通的螺纹通孔24。在套筒5背离定位抵挡部13的端面上设有多个放射状的止转槽25。限位机构为螺纹锁紧机构,螺纹锁紧机构为连接芯杆2的螺纹端11和螺纹连接在螺纹端11上的套筒5内的螺纹通孔24。
如图2、图3所示,收缩套容置空间包括小端与螺纹通孔24相连的圆锥孔26,与圆锥孔26大端相连的容置圆柱孔27,小端与容置圆柱孔27相连的驱动圆锥孔28,与驱动圆锥孔28大端相连的圆柱孔29,小端与圆柱孔29相连的驱动圆锥孔30。驱动圆锥孔28和驱动圆锥孔30形成驱动锥面。在圆柱孔29的孔壁上向内凸设有抵挡部31,抵挡部31与抵挡槽23配合。
如图2、图3所示,合抱在一起的收缩件3的圆柱形曲面18和圆柱形曲面42形成连接芯杆容置空间41。
在工厂将三瓣收缩件3均安装在套筒5内,抵挡部31安装在抵挡槽23内,内弹簧6安装在内弹簧容置槽32内,内弹簧7安装在内弹簧容置槽33内,内弹簧6完全容置在内弹簧容置槽32内,内弹簧7并完全容置在内弹簧容置槽33内,通过内弹簧6、内弹簧7径向向外的弹力将收缩件3抵挡在套筒5内。这样在收缩件3和套筒5未安装到连接芯杆2上时,收缩件3和套筒5不会自动分离,收缩件3合抱在一起形成收缩套4。这样安装在一起的收缩套4和套筒5就相当于螺母,连接芯杆2就相当于螺杆,在现场安装就和安装螺杆和螺母一样简单。
一种收缩连接结构,包括收缩连接组件1,被连接件34、被连接件35、第二卡簧36。在被连接件34上设有与连接芯杆2配合的圆通孔37,在被连接件35上设有与连接芯杆2配合的圆通孔38。
连接芯杆2为仅起连接作用的连接件,定位抵挡部13设置在连接芯杆2的一端的外周上形成连接芯杆头,收缩连接组件1为收缩紧固连接组件。第二卡簧36包括中间断开的卡簧本体39,和从卡簧本体39远离断开位置的一侧凸出的块状止转部40。
如图3、图4所示,在收缩套4未收缩状态,连接芯杆2的螺纹端11依次穿过被连接件35的圆通孔38、被连接件34的圆通孔37。在定位抵挡部与被连接件35抵靠在一起时,连接芯杆2设有楔形抵挡部10的部分凸出被连接件34。将安装在一起的套筒5的螺纹通孔24和收缩套4连接芯杆容置空间41穿过连接芯杆2的螺纹端11安装在连接芯杆2上,套筒5的螺纹通孔24螺纹连接在连接芯杆2的螺纹端11上,连接芯杆2的定位抵挡部13由与其相对的被连接件35轴向抵挡,收缩套4由与其相对的另一个被连接件34轴向抵挡,被连接件35、被连接件34抵靠在一起,连接芯杆2的楔形抵挡部10与收缩套4相应的楔形抵挡槽17正对。
如图5图6所示,在收缩套4完全收缩状态,连接芯杆2的楔形抵挡部10伸入收缩套4相应的楔形抵挡槽17内通过梯形的两个斜面接触抵挡形成卡合,套筒5内的螺纹通孔螺纹连接在连接芯杆2的螺纹端11上螺纹锁紧套筒5和连接芯杆2,套筒5对收缩套4径向抵挡限位,收缩套4与连接芯杆2固定在一起;连接芯杆2的定位抵挡部13对被连接件35轴向抵挡,收缩套4对被连接件34轴向抵挡,收缩连接组件1将被连接件35、被连接件34连接固定在一起。螺纹锁紧机构防止套筒5和收缩套4松脱、使收缩套4保持在完全 收缩状态。第二卡簧36的止转部40安装在止转槽25内,卡簧本体39安装在第二卡槽15内并通过第二卡槽15抵挡在连接芯杆2上,卡簧本体39轴向抵挡套筒5,放置套筒5反转松脱。圆柱形曲面18、圆柱形曲面42分布在同一圆周面上,圆柱形曲面18与设有楔形抵挡部10的连接芯杆本体8的小杆9外周面通过面与面接触紧配合,圆柱形曲面42与设连接芯杆本体8的大杆12的外周面均匀间隙配合。圆柱形曲面42与圆柱形曲面18同心,圆柱形曲面42的直径大于圆柱形曲面18的直径和大杆12的直径。
连接方法依次包括以下步骤:
将收缩套4安装在套筒5内,收缩套4的收缩用圆锥形曲面19抵挡在套筒5的驱动圆锥孔28上,收缩套4的圆柱形曲面20抵挡在套筒5的圆柱孔29内,收缩套4的收缩用圆锥形曲面21抵挡在套筒5的驱动圆锥孔30上,抵挡部31安装在抵挡槽23内,将内弹簧6完安装在内弹簧容置槽32内,通过内弹簧6径向向外的弹力将收缩套4抵挡在套筒5内;以上工序一般在工厂完成,也可在安装现场完成;
将连接芯杆2的螺纹端11依次穿过被连接件35的圆通孔38、被连接件34的圆通孔37,连接芯杆2设有楔形抵挡部10的部分凸出被连接件34;
将安装在一起的套筒5的螺纹通孔24和收缩套4内的连接芯杆容置空间41穿过连接芯杆2的螺纹端11安装在连接芯杆2上,套筒5的螺纹通孔24螺纹连接在连接芯杆2的螺纹端11上,收缩套4朝向被连接件34的一侧凸出套筒5,向连接芯杆2的定位抵挡部13施加朝向套筒5方向的轴向力,同时旋转套筒5,套筒5和收缩套4同步向被连接件34运动,直至收缩套4抵靠在被连接件4上,套筒5、收缩套4、被连接件34、被连接件35、定位抵挡部13抵靠在一起时,连接芯杆2上的楔形抵挡部10与收缩套4上相应的楔形抵挡槽17正对;
继续旋转套筒5,套筒5的驱动圆锥孔28在收缩套4的收缩用圆锥形曲面19上滑动,套筒5的驱动圆锥孔30在收缩套4的收缩用圆锥形曲面21上滑动,套筒5驱动收缩套4收缩,每瓣收缩件3仅径向运动,连接芯杆2上的楔形抵挡槽17伸入收缩套4上相应的楔形抵挡槽17内通过面与面相互抵挡形成卡合,直至收缩套4不再径向运动,收缩套4处于完全收缩的状态;
收缩套4处于完全收缩的状态,再继续旋转套筒5,套筒5的驱动圆锥孔28的小端越过收缩套4的收缩用圆锥形曲面19的大端,套筒5的驱动圆锥孔30的小端越过收缩套4的收缩用圆锥形曲面21的大端,套筒5再继续相对收缩套4滑动一段距离停止旋转套筒5。通过套筒5与连接芯杆2的螺纹连接螺纹锁紧套筒5,防止套筒5和收缩套4松脱,使收缩套4保持在完全收缩状态;
在收缩套4完全收缩状态,连接芯杆2的楔形抵挡部10伸入收缩套4相应的楔形抵挡槽17内通过梯形的两个斜面接触抵挡形成卡合,通过套筒5内的螺纹通孔螺纹连接在连接芯杆2的螺纹端11上螺纹锁紧套筒5和连接芯杆2,套筒5对收缩套4径向抵挡限位,使收缩套4与连接芯杆2固定在一起;收缩套4对被连接件34轴向抵挡,连接芯杆2的定位抵挡部13对被连接件35轴向抵挡,收缩连接组件1与被连接件34连接固定在一起;
将第二卡簧36的止转部40安装在止转槽25内,卡簧本体39安装在第二卡槽15内并通过第二卡槽15抵挡在连接芯杆2内,防止连接芯杆2反转。
若要拆卸时,先将第二卡簧36从第二卡槽15内拆出来,再反向旋转套筒5即可。
实施例2
如图7所示,与实施例1不同的是,连接芯杆60的定位抵挡部61为圆柱形,在定位抵挡部61的端面设有内六角形孔62。
单个楔形抵挡部63包括导向段64,与导向段64相连的抵挡段65,连接抵挡段65和连接芯杆66的小杆67的连接段68,抵挡段65与连接芯杆66的轴线垂直;单个楔形抵挡槽69包括与收缩套70的连接芯杆容置空间71的壁相连的两导向面72,与两导向面72相连、与收缩套70的轴线垂直的两垂直面73,连接两垂直面73的避空用连接面74;在收缩套70完全收缩状态,导向段64与避空用连接面74间隙配合,抵挡段65被垂直面73抵挡,连接段68与两导向面72间隙配合。
实施例3
如图8所示,与实施例1不同的是,连接芯杆80包括阶梯状的连接芯杆本体81,径向凸设在连接芯杆本体81的圆柱形小杆82的外周上的独立环状的楔形抵挡部83,与小杆82相连的直光杆部84,径向凸设在连接芯杆本体81的圆柱形大杆85端部的六角头定位抵挡部86,设置在直光杆部84端部的外周面上的第一卡槽87。
限位机构为第一卡簧88和设置在连接芯杆80直光杆部84端部的第一卡槽87。套筒89上与直光杆部84配合、与收缩套容置空间90连通的圆通孔91为光孔。第一卡簧88为断开的环状。
在收缩套92完全收缩状态,将第一卡簧88安装在第一卡槽87内,通过第一卡簧88对套筒89轴向抵挡,防止套筒89和收缩套92松脱,使收缩套92保持在完全收缩状态。
连接方法与实施例1不同的是:
将连接芯杆80设有楔形抵挡部83的一端依次穿过被连接件93的圆通孔94、被连接件95的圆通孔96,连接芯杆80设有楔形抵挡部83的部分凸出被连接件95;
将安装在一起的套筒89的圆通孔91和收缩套92的连接芯杆容置空间97穿过连接芯杆80设有楔形抵挡部83的一端安装在连接芯杆80上,收缩套92朝向被连接件95的一侧凸出套筒89,向连接芯杆80的定位抵挡部86和套筒89施加相对方向的轴向力;套筒89和收缩套92同步向被连接件95运动,直至收缩套92抵靠在被连接件95上,套筒89、收缩套92、被连接件95、被连接件93、定位抵挡部86抵靠在一起时,收缩套92上的楔形抵挡部98与连接芯杆80上相应的楔形抵挡槽99正对;
再向连接芯杆80的定位抵挡部86和套筒89施加相对方向的轴向力,使收缩套92处于完全收缩的状态;
在收缩套92处于完全收缩的状态,继续向套筒89施加朝向定位抵挡部86的轴向力,直至套筒89无法继续轴向运动;
再将第一卡簧88安装在第一卡槽87内并通过第一卡簧88抵挡套筒89使套筒89和连接芯杆80保持固定位置,防止套筒89和收缩套92松脱,使收缩套92保持在完全收缩状态。
实施例4
如图9至图11所示,与实施例1不同的是,收缩连接组件还包括外弹簧120、外弹簧121。连接芯杆122包括阶梯状的连接芯杆本体,径向凸设在连接芯杆本体的圆柱形小杆123的外周上的独立环状的楔形抵挡部124,与小杆123相连的直光杆部125,径向凸设在连接芯杆本体的圆柱形大杆126端部的定位抵挡部127。连接芯杆本体由小杆123和大杆126组成。
收缩件128的外侧壁包括用来驱动收缩套151收缩的收缩用圆锥形曲面129,与收缩用圆锥形曲面129小端相连的圆柱形曲面130,与收缩用圆锥形曲面129大端相连的设有外螺纹部131的连接曲面132,小端与连接曲面132端面相连且凸出连接曲面132的圆锥形曲面133,与圆锥形曲面133大端相连的圆柱形曲面134,大端与圆柱形曲面130相连的避空圆锥形曲面135,设置在避空圆锥形曲面135的端面上的多个倒L形的凸起136,凸起136与圆锥形曲面135的端面形成第二卡槽137,设置在圆柱形曲面130的外周上与外弹簧120配合的外弹簧容置槽138,设置在圆柱形曲面134的外周上与外弹簧121配合的外弹簧容置槽139。
在套筒140内设有收缩套容置空间141,和与收缩套容置空间141连通的圆通孔142,设置在套筒140端面上的止转槽149。收缩套容置空间141包括小端与圆通孔142相连的圆锥孔143,与圆锥孔143大端相连的设有内螺纹部144的容置孔145,小端与容置孔145相连的驱动圆锥孔146,与驱动圆锥孔146大端相连的圆柱孔147,小端与圆柱孔147相连的圆锥孔148。限位机构为螺纹锁紧机构,为收缩件128上的外螺纹部131和螺纹连接在外螺纹部131上的套筒140内的内螺纹部144。
将内弹簧150安装在收缩套151内,内弹簧150完全容置在内弹簧容置槽152内,将内弹簧153安装在收缩套151内,内弹簧153完全容置在内弹簧容置槽154内。将外弹簧120安装在收缩套151外,外弹簧120完全容置在外弹簧容置槽138内;将外弹簧121安装在收缩套151外,外弹簧121完全容置在外弹簧容置槽139内。外弹簧120、外弹簧121将合抱在一起的收缩件128不会自动分开地安装在一起组成收缩套151。将安装有内弹簧150、内弹簧153和外弹簧120、外弹簧121的收缩套151安装在套筒140内,通过内弹簧150、内弹簧153径向向外的弹力将收缩套151抵挡在套筒140内。以上工序在工厂完成。
在收缩套151未收缩状态,连接芯杆122设有楔形抵挡部124的一端依次穿过被连接件156的圆通孔157、被连接件158的圆通孔159,连接芯杆122设有楔形抵挡部124的部分凸出被连接件158。将安装在一起的套筒140的圆通孔142和收缩套151的连接芯杆容置空间160穿过连接芯杆122设有楔形抵挡部124的一端安装在连接芯杆122上,连接芯杆122的定位抵挡部127由与其相对的被连接件156轴向抵挡,收缩套151由与其相对的 另一个被连接件158轴向抵挡,被连接件156、被连接件158抵靠在一起,连接芯杆122的楔形抵挡部124与收缩套151相应的楔形抵挡槽161正对。
在收缩套151完全收缩状态,连接芯杆122的楔形抵挡部124伸入收缩套151相应的楔形抵挡槽161内形成卡合,螺纹锁紧机构的内螺纹部144和外螺纹部131螺纹连接在一起,防止套筒140和收缩套151松脱、使收缩套151保持在完全收缩状态。第二卡簧162安装在第二卡槽137内并通过第二卡簧162抵挡套筒140。
连接方法依次包括以下步骤:
将内弹簧150安装在内弹簧容置槽152内,将内弹簧153安装在内弹簧容置槽154内;将外弹簧120安装在外弹簧容置槽138内,将外弹簧121安装在外弹簧容置槽139内;通过外弹簧120、外弹簧121将合抱在一起的收缩件128不会自动分开地安装在一起组成收缩套151;将安装有内弹簧150、内弹簧153和外弹簧120、外弹簧12的收缩套151安装在套筒140内,通过内弹簧150、内弹簧153径向向外的弹力将收缩套151抵挡在套筒140内;以上工序一般在工厂完成,也可在安装现场完成;
将连接芯杆122设有楔形抵挡部124的一端依次穿过被连接件156的圆通孔157、被连接件158的圆通孔159,连接芯杆122设有楔形抵挡部124的部分凸出被连接件158;
将安装在一起的套筒140的圆通孔142和收缩套151连接芯杆容置空间160穿过连接芯杆122设有楔形抵挡部124的一端安装在连接芯杆122上,收缩套151朝向被连接件158的一侧凸出套筒140,对连接芯杆122的定位抵挡部127和套筒140施加相对方向的轴向力,套筒140和收缩套151同步向被连接件158运动,直至收缩套151抵靠在被连接件158上,套筒140、收缩套151、被连接件158、被连接件156、定位抵挡部127抵靠在一起时,连接芯杆122上的楔形抵挡部124与收缩套151上相应的楔形抵挡槽161正对;
对连接芯杆122的定位抵挡部127和套筒140施加相对方向的轴向力,套筒140的驱动圆锥孔146在收缩套151的收缩用圆锥形曲面129上滑动,套筒140驱动收缩套151收缩,每瓣收缩件128仅径向运动,连接芯杆122上的楔形抵挡部伸入收缩套151上相应的楔形抵挡槽161内通过面与面相互抵挡形成卡合,直至收缩套151不再径向运动,收缩套151处于完全收缩的状态;
收缩套151处于完全收缩的状态,继续旋转套筒140,套筒140的驱动圆锥孔146的小端越过收缩套151的收缩用圆锥形曲面129的大端,锁紧机构的内螺纹和外螺纹开始螺纹连接,套筒140再继续相对收缩套151滑动一段距离,直至收缩套151上的第二卡槽137越过套筒140的端面停止旋转套筒140;
通过套筒140的内螺纹部144与收缩套151的外螺纹部131螺纹连接螺纹锁紧套筒140与收缩套151,防止套筒140和收缩套151松脱,使收缩套151保持在完全收缩状态;
将第二卡簧162安装在第二卡槽137内并通过第二卡簧162抵挡套筒140,防止套筒140反转。
若要拆卸时,先将第二卡簧162从第二卡槽137内拆出来,再反向旋转套筒140即可。实施例5
如图12至图15所示,与实施例4不同的是,收缩套190的多个凸出部191包括与收缩套容置空间192相连的圆通孔194配合的圆柱形曲面195,在圆柱形曲面195凸出套筒196的端部径向向外凸设有将收缩套190限位在套筒196上的限位部197。在收缩套190安装在套筒196内并被内弹簧198、内弹簧199撑开的状态,限位部197的最大外径大于与收缩套容置空间192相连的圆通孔194的孔径.收缩套190通过内弹簧198、内弹簧199向外的径向方向的弹力、限位部197和收缩用锥面对收缩套190轴向两个相反方向的抵挡限位与套筒196安装在一起。第二卡槽200设置在与收缩用圆锥形曲面201小端相连的圆柱形曲面202上。
单个楔形抵挡部203在经过轴线的截面上的形状为三角形;单个楔形抵挡槽204在经过轴线的截面上的形状为与楔形抵挡部203配合的三角形;在收缩套190完全收缩状态,楔形抵挡部203与楔形抵挡槽204通过三角形的两个斜面面接触。
实施例6
如图16、图17所示,与实施例4不同的是,收缩连接组件还包括圆管220。在圆管220外周面上设有外螺纹部221;在圆管220不设有外螺纹部221的侧壁222上设有径向贯穿侧壁222的单瓣收缩件容置侧孔223,在外螺纹部221的端面上设有凸出部224,在凸出部224上设有第二卡槽225。
收缩件226为四瓣。收缩件226的外侧壁包括用来驱动收缩套227收缩的收缩用圆锥 形曲面228,与收缩用圆锥形曲面228大端相连的圆柱形曲面230,小端与圆柱形曲面230相连的收缩用圆锥形曲面231,与收缩用圆锥形曲面231大端相连的圆柱形曲面232。收缩件226的内侧壁包括一端与圆管220的侧壁222的外周配合的圆柱形曲面234,与连接芯杆235的小杆236配合的外周237,一端与圆管220的侧壁222的外周配合的圆柱形曲面238。
在套筒239内设有收缩套容置空间240,和与收缩套容置空间240连通的螺纹通孔241。收缩套容置空间240包括小端与螺纹通孔241相连的圆锥孔242,与圆锥孔242大端相连的第一圆柱孔243,小端与第一圆柱孔243相连的驱动圆锥孔244,与驱动圆锥孔244大端相连的第二圆柱孔245,小端与第二圆柱孔245相连的驱动圆锥孔219。限位机构为螺纹锁紧机构,为套筒239内的螺纹通孔241和螺纹连接在螺纹通孔241的圆管220上的外螺纹部221。
限位机构为螺纹锁紧机构,为套筒239内的螺纹通孔241和螺纹连接在螺纹通孔241的圆管220上的外螺纹部221。
连接方法与实施例4不同的是:
将单瓣收缩件226安装在圆管220的相应的单瓣收缩件226容置侧孔223内,再将外弹簧246、外弹簧247安装在收缩件226外使收缩件226合抱在一起组成收缩套227;内弹簧248、内弹簧249安装在收缩套227内,使收缩套227向外张开,在收缩套227未收缩状态,收缩套227没有凸出圆管220的内壁,收缩套227的外侧壁222凸出圆管220的外壁;以上工序一般在工厂完成,也可在安装现场完成;
将连接芯杆235设有楔形抵挡部250的一端依次穿过被连接件251的圆通孔252、被连接件253的圆通孔254,连接芯杆235的楔形抵挡部250凸出被连接件253;
将安装在一起的圆管220和收缩套227穿过连接芯杆235设有楔形抵挡部250的一端安装在连接芯杆235上,向连接芯杆235的定位抵挡部257和套筒239施加相对方向的轴向力,直至收缩套227抵靠在被连接件253上,套筒239、收缩套227、被连接件253、被连接件251、定位抵挡部257抵靠在一起时,收缩套227上的的楔形抵挡槽258与连接芯杆235上楔形抵挡部255相应正对;
将套筒239的螺纹通孔241螺纹连接在在圆管220的外螺纹部221上;
旋转套筒239,使收缩套227处于完全收缩的状态。
实施例7
如图18至图20所示,与实施例4不同的是,膨胀件280的外侧面为圆弧状。在膨胀件280的外侧面上凸设有用来收缩和膨胀收缩套281的第一收缩膨胀用凸出部282,与第一收缩膨胀用凸出部282关于其中心位置对称的第二收缩膨胀用凸出部283。第一收缩膨胀用凸出部282包括收缩用锥面284,在第一收缩膨胀用凸出部282背离收缩用锥面284的一侧形成用来膨胀收缩套281的膨胀用锥形凹陷部285,连接收缩用锥面284和膨胀用锥形凹陷部285的圆柱形连接面286。收缩套281的收缩用锥面284与膨胀用锥形凹陷部285的锥度方向一致。
膨胀件280的内侧面包括与连接芯杆287的小杆288配合的圆柱形曲面289和避空连接芯杆287的大杆290的圆柱形曲面304,连接圆柱形曲面289和圆柱形曲面304的连接面291。
套筒包括第一套筒292和第二套筒293。
第一套筒292包括圆柱形的第一套筒本体294,贯穿第一套筒本体294的圆通孔295,设置在第一套筒本体294外周面上的外螺纹部296,径向凸设第一套筒本体294的抵挡部297,设置在圆通孔295的孔壁上与第一收缩膨胀用凸出部282配合的第一收缩膨胀用容置槽298。
第二套筒293包括第二套筒本体299,设置在第二套筒本体299内的螺纹沉孔300和连通螺纹沉孔300的圆通孔301,凸设第二套筒本体299的凸出部302,设置在圆通孔301的孔壁上与第二收缩膨胀用凸出部283配合的第二收缩膨胀用容置槽303。
第一套筒292和第二套筒293通过外螺纹部296与螺纹沉孔300螺纹连接在一起。第二收缩膨胀用容置槽303与第一收缩膨胀用容置槽298关于其中心位置对称。
限位机构为螺纹锁紧机构,包括设置在第一套筒292上的外螺纹部296,设置在第二套筒293上的螺纹沉孔300。
实施例8
如图21至图24所示,与实施例4不同的是,连接芯杆为机械设备上的阶梯状的连接 轴;被连接件为机械零件330、机械组件331、机械组件332。
连接轴包括螺纹部333,设置在螺纹部333端部的第二卡槽334,与螺纹部333相接且直径小于螺纹部333的圆柱形部335,设置在圆柱形部335外周面上的楔形抵挡部361,小端与圆柱形部335相接且凸出圆柱形部335的圆锥形部336,圆锥形部336的锥面形成定位抵挡部,与圆锥形部336大端相接且凸出圆锥形部33的圆柱形部337,与圆柱形部337相接且直径小于圆柱形部337的圆柱形部338,与圆柱形部338相接且凸出圆柱形部338的圆柱形部339,与圆柱形部339相接且直径小于圆柱形部339的圆柱形部340,圆柱形部339与圆柱形部340间的阶梯面形成定位抵挡部341,与圆柱形部340相接且直径小于圆柱形部340的圆柱形部342,设置在圆柱形部342外周面上的楔形抵挡部343,与圆柱形部342相接的螺纹部344,与螺纹部344相接的圆柱形部345,设置在圆柱形部345上的第二卡槽346,与圆柱形部345相接且直径小于圆柱形部345的圆柱形部347,圆柱形部345与圆柱形部347间的阶梯面形成定位抵挡部348,与圆柱形部347相接且直径小于圆柱形部347的圆柱形部349,设置在圆柱形部349外周面上的楔形抵挡部350。
机械零件330安装在圆锥部336上并通过收缩套351抵挡固定,收缩套351、驱动收缩套351收缩的套筒352、第二卡簧353等的结构与实施例1相同。
机械组件331安装在圆柱形部340上并通过收缩套354抵挡固定,收缩套354、驱动收缩套354收缩的套筒355、第二卡簧356等的结构与实施例1相同。
机械组件332安装在圆柱形部347上并通过收缩套357抵挡固定,收缩套357、驱动收缩套357收缩的套筒358、第二卡簧359等的结构与实施例4不同的是楔形抵挡部350和楔形抵挡槽360的结构。楔形抵挡部350和楔形抵挡槽360的结构与实施例2相同。
连接方法于实施例1不同的是:
将机械零件330从连接轴设有楔形抵挡部361的一端安装在连接轴的圆锥形部336上,再通过收缩套351、驱动套筒352固定;
将机械组件331从连接轴设有楔形抵挡部350的一端安装在连接轴的圆柱形部340上,再通过收缩套354、驱动套筒355固定;
将机械组件332从连接轴设有楔形抵挡部350的一端安装在连接轴的圆柱形部347上,再通过收缩套357、驱动套筒358固定。
实施例9
如图25至图26所示,与实施例3不同的是,收缩件390的外侧壁包括用来驱动收缩套391收缩的收缩用圆锥形曲面392,与收缩用圆锥形曲面392大端相连的圆柱形曲面393,轴向贯穿收缩用圆锥形曲面392和圆柱形曲面393的凹槽394。凹槽394的槽底为与圆柱形曲面393同心的圆柱形曲面395。
套筒396的收缩套容置空间397包括与圆通孔398相连的圆孔399,小端与圆孔399相连的驱动圆锥孔400。在圆孔399和驱动圆锥孔400的外周上设有与凹槽394配合的凸条401。
套筒396的收缩套容置空间397包括与圆通孔398的端面相连且孔径大于圆通孔398的孔径的圆孔399,小端与圆孔399相连的收缩用驱动圆锥孔400,与收缩用驱动圆锥孔400大端相连的圆孔401,凸设在圆孔401和收缩用驱动圆锥孔406的孔壁上、与凹槽394配合的凸条402。凸条402的内周面与圆孔399的孔壁齐平。
实施例10
如图27、图28所示,与实施例3不同的是,在连接芯杆420上设有轴向贯穿连接芯杆的大杆421和楔形抵挡部422的凹槽,凹槽的底面与小杆的外周面共面。
实施例11
如图29至图30所示,与实施例10不同的是,限位机构为设置在套筒430朝向被连接件431一端的端部的外周上的圆凸环432和穿过圆凸环432的沉头孔433将圆凸环432固定在被连接件431上的紧固件(未示出)。
当组成本发明的膨胀套的膨胀件为两瓣等时,根据本发明公开的实施例完全可以实现。本发明中的被连接件为表达方便,仅示出通过一个收缩膨胀式紧固连接组件连接的示意图,在实际使用中,本发明的收缩膨胀式紧固连接组件就相当于螺栓和螺母,在能使用螺栓和螺母的场合就可使用本发明的收缩连接组件。

Claims (31)

  1. 一种收缩连接组件,其特征在于:包括连接芯杆,两瓣以上合抱连接芯杆的收缩件组成的收缩套,用于驱动收缩套收缩的套筒,在收缩套完全收缩状态防止套筒和收缩套松脱的限位机构;
    所述连接芯杆包括连接芯杆本体和径向凸设在连接芯杆本体的外周上的独立环状的楔形抵挡部;在连接芯杆本体上形成定位抵挡部;
    所述的收缩件包括收缩件本体,设置在收缩件本体的内侧与楔形抵挡部配合的楔形抵挡槽,设置在收缩件本体外侧用来驱动收缩套收缩的收缩用锥面;
    在收缩套内设有连接芯杆容置空间;所述的楔形抵挡槽设置在连接芯杆容置空间的壁上;收缩套内的所述的楔形抵挡槽形成断开的独立环状;
    在所述套筒内设有收缩套容置空间,在收缩套容置空间的壁上设有与每瓣收缩件的收缩用锥面配合的驱动锥面。
  2. 如权利要求1所述的收缩连接组件,其特征在于:单个所述的楔形抵挡部包括导向段,与导向段相连的抵挡段,连接所述抵挡段和所述连接芯杆本体的连接段,所述的抵挡段与所述连接芯杆的轴线垂直;单个所述的楔形抵挡槽包括与收缩套的连接芯杆容置空间壁相连的两导向面,与两导向面相连、与收缩套的轴线垂直的两垂直面,连接两垂直面的避空用连接面;在收缩套完全收缩状态,导向段与避空用连接面间隙配合,抵挡段被垂直面抵挡,连接段与两导向面间隙配合。
  3. 如权利要求2所述的收缩连接组件,其特征在于:楔形抵挡部凸出连接芯杆本体的高度小于楔形抵挡槽的深度;在收缩套完全收缩状态,连接芯杆本体与收缩套的连接芯杆容置空间壁紧配合。
  4. 如权利要求1所述的一种收缩连接组件,其特征在于:单个所述的楔形抵挡部在经过轴线的截面上的形状为尖角形或梯形或弧形;所述的楔形抵挡槽在经过轴线的截面上的形状为与楔形抵挡部配合的尖角形或梯形或弧形;楔形抵挡部与楔形抵挡槽通过尖角形两个斜面面接触或梯形的两个斜面面接触、或通过弧形面接触。
  5. 如权利要求1所述的收缩连接组件,其特征在于:所述的连接芯杆还包括与所述的驱动锥面大端相连的直光杆部,所述直光杆部的轴向长度大于所述驱动锥面的轴向长度;在收缩套完全收缩状态,连接芯杆上的驱动锥面与收缩套上相应的收缩用锥面之间在轴线方向存在设定距离。
  6. 如权利要求1所述的一种收缩连接组件,其特征在于:还包括内弹簧,在收缩套与连接芯杆配合的连接芯杆容置空间的孔壁上径向设有内弹簧容置槽,在收缩套还没有安装到连接芯杆上之前,收缩套安装在套筒内,通过内弹簧径向向外的弹力将收缩套抵挡在套筒内,内弹簧完全容置在内弹簧容置槽内。
  7. 如权利要求1所述的一种收缩连接组件,其特征在于:还包括外弹簧,在每瓣收缩件的外周面上径向设有外弹簧容置槽,两瓣以上的收缩件通过外弹簧合抱在一起组成所述收缩套,外弹簧完全容置在外弹簧容置槽内。
  8. 如权利要求1所述的一种收缩连接组件,其特征在于:所述限位机构为螺纹锁紧机构,包括轴向设置在连接芯杆本体上的螺纹部和设置在所述套筒上与所述收缩套容置空间连通的螺纹孔;套筒的螺纹孔与接芯杆的螺纹部配合将套筒固定在连接芯杆上,从而在收缩套完全收缩状态将收缩套锁紧固定在套筒内和连接芯杆上。
  9. 如权利要求6所述的一种收缩连接组件,其特征在于:收缩套容置空间包括所述的驱动锥面和与所述驱动锥面大端相连的柱孔,在收缩套容置空间的柱孔的孔壁上径向凸设有抵 挡部;所述收缩套还包括与所述收缩用锥面大端相连、并与所述的收缩套容置空间的柱孔配合的柱面,在收缩套柱面的外周上设有与套筒上的抵挡部配合的抵挡槽。
  10. 如权利要求6所述的一种收缩连接组件,其特征在于:所述的收缩套容置空间还包括与所述的收缩套容置空间相连的柱孔,收缩套还包括与柱孔配合的柱面,在柱面凸出套筒的端部径向向外凸设有将收缩套限位在套筒上的限位部;在收缩套安装在套筒内并被内弹簧撑开的状态,限位部的最大外径大于与收缩套容置空间相连的柱孔的孔径;收缩套通过内弹簧向外的径向方向的弹力、限位部和收缩用锥面对收缩套轴向两个相反方向的抵挡限位与套筒安装在一起;所述限位机构包括设置在所述套筒的收缩套容置空间壁上的内螺纹部和设置在收缩套的外侧壁上的外螺纹部,套筒的螺纹孔与收缩套的螺纹部配合将套筒固定在收缩套上,使收缩套保持完全收缩状态。
  11. 如权利要求3所述的一种收缩连接组件,其特征在于:还包括圆管;所述限位机构为螺纹锁紧机构,包括设置在所述套筒上与所述收缩套容置空间连通的螺纹孔,设置在圆管外周面上与套筒的螺纹孔配合的外螺纹部;在圆管的侧壁上径向设有单瓣收缩件容置侧孔。
  12. 如权利要求1所述的一种收缩连接组件,其特征在于:在收缩套外周上凸设有用来收缩和膨胀收缩套的第一收缩膨胀用凸出部,第一收缩膨胀用凸出部包括所述收缩用锥面,在第一收缩膨胀用凸出部背离收缩用锥面的一侧形成用来膨胀收缩套的膨胀用锥形凹陷部,收缩套的收缩用锥面与膨胀用锥形凹陷部的锥度方向一致;所述收缩套容置空间包括与第一收缩膨胀用凸出部配合的第一收缩膨胀用容置槽,第一收缩膨胀用容置槽的两槽壁形成用来收缩收缩套、与收缩套的收缩用锥面配合的所述驱动锥面,及用来膨胀收缩套、与收缩套的膨胀用锥形凹陷部配合的膨胀用锥面。
  13. 如权利要求12所述的一种收缩连接组件,其特征在于:所述的套筒包括第一套筒和第二套筒;与所述的第一收缩膨胀用凸出部配合的第一收缩膨胀用容置槽设置在所述的第一套筒上;所述的限位机构为螺纹锁紧机构,包括设置在第一套筒的外周上的螺纹部,设置在第二套筒上与第一套筒的螺纹部配合的螺纹孔;在所述的收缩套的外周上还设有与第一收缩膨胀用凸出部关于其中心位置对称的第二收缩膨胀用凸出部,所述收缩套容置空间还包括设置在第二套筒的上、与所述的第二收缩膨胀用凸出部配合的第二收缩膨胀用容置槽。
  14. 如权利要求1所述的一种收缩连接组件,其特征在于:所述的限位机构为安装在套筒与连接芯杆之间的限位件,及设置在套筒上的限位件抵挡部或设置在连接芯杆上的限位件抵挡部;在收缩套完全收缩状态,限位件和限位件抵挡部安装在一起,套筒的一侧被收缩套轴向限位,套筒的另一侧被限位件轴向限位,使套筒和连接芯杆保持固定位置。
  15. 如权利要求14所述的一种收缩连接组件,其特征在于:所述的限位件为第一卡簧,所述的限位件抵挡部为设置在套筒上的第一卡槽或设置在连接芯杆上的第一卡槽。
  16. 如权利要求1所述的一种收缩连接组件,其特征在于:所述的限位机构为螺纹锁紧机构;还设有防止螺纹锁紧机构反转的第二卡簧,及设置在套筒上的第二卡槽或设置在连接芯杆上的第二卡槽;在收缩套完全收缩状态,第二卡簧安装在第二卡槽内,使收缩套处于完全收缩状态不变。
  17. 如权利要求1所述的收缩连接组件,其特征在于:在每瓣收缩件外侧设有轴向的凸条或凹陷部,所述的收缩用锥面设置在收缩件的凸条或凹陷部上;在套筒上设有与每瓣收缩件上的凸条配合的凹陷部、或与每瓣收缩件上的凹陷部配合的凸条,所述的驱动锥面设置在套筒凸条或凹陷部上。
  18. 如权利要求1至17任意一项所述的一种收缩连接组件,其特征在于:在收缩套完全收缩的状态,套筒上的所述的收缩套容置空间的侧壁包括对收缩套径向限位分布在同一圆周面上的圆柱形曲面,所述收缩套与收缩套容置空间对收缩套径向限位的圆柱形曲面配合的面为分布在同一圆周面上的圆柱形曲面,套筒与收缩套径向通过面与面接触紧配合或均匀间隙配合;所述的连接芯杆容置空间的侧壁包括分布在同一圆周面上的圆柱形曲面,圆柱 形曲面与设有楔形抵挡部的连接芯杆本体外周面通过面与面接触紧配合或与设有楔形抵挡部的连接芯杆本体外周面均匀间隙配合。
  19. 如权利要求1至17任意一项所述的一种收缩连接组件,其特征在于:所述的连接芯杆为仅起连接作用的连接件,所述的定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;所述的被连接件为两个以上,所述收缩连接组件为收缩紧固连接组件。
  20. 如权利要求1至17任意一项所述的收缩连接组件,其特征在于:所述的连接芯杆为机械设备上的阶梯状的连接轴;所述的被连接件为一个以上安装在连接轴上的机械零件;所述的定位抵挡部为连接芯杆上的阶梯面。
  21. 如权利要求20所述的一种收缩连接组件,其特征在于:在连接芯杆本体两处以上的外周上设有所述的楔形抵挡部,在每处楔形抵挡部上设有与之配合的所述收缩套,与收缩套配合的所述套筒,及在收缩套完全收缩状态防止套筒和收缩套松脱的限位机构。
  22. 一种包括如权利要求1至17任意一项所述的收缩连接组件的收缩连接结构,其特征在于:还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
    所述的连接芯杆为仅起连接作用的连接件,所述的定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;
    连接芯杆设有楔形抵挡部的一端穿过全部被连接件的通孔,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    收缩套安装在连接芯杆上,套筒安装在收缩套外,连接芯杆的定位抵挡部由与其相对的一个被连接件轴向抵挡,收缩套由与其相对的另一个被连接件轴向抵挡,两个以上的被连接件抵靠在一起,连接芯杆的楔形抵挡部与收缩套相应的楔形抵挡槽正对;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,限位机构防止套筒和收缩套松脱、使收缩套保持在完全收缩状态;在收缩套完全收缩状态,连接芯杆的定位抵挡部对与其相对的一个被连接件轴向抵挡,收缩套对与其相对的另一个被连接件轴向抵挡,收缩连接组件将两个以上被连接件连接固定在一起。
  23. 一种如权利要求21所述的收缩连接结构,其特征在于:还包括套在连接芯杆上、消除轴向间隙的波形弹簧或弹性垫圈,波形弹簧或弹性垫圈安装在定位抵挡部与被连接件之间、或安装在收缩套和被连接件之间。
  24. 包括如权利要求1至17任意一项所述的收缩连接组件的收缩连接结构,其特征在于:还包括一个以上的被连接件,所述的被连接件为机械零件;
    所述的连接芯杆为机械设备上的阶梯状的连接轴;所述的定位抵挡部为连接芯杆上的阶梯面;
    在机械零件上设有与连接芯杆配合的通孔;
    连接芯杆设有楔形抵挡部的一端穿过机械零件的通孔,机械零件被连接芯杆的定位抵挡部轴向抵挡,连接芯杆设有楔形抵挡部的部分凸出机械零件;
    将收缩套安装在连接芯杆上,套筒安装在收缩套外,收缩套被机械零件背离定位抵挡部的面抵挡限位,定位抵挡部、收缩套、机械零件抵靠在一起,楔形抵挡槽与相应的楔形抵挡部正对;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,限位机构防止套筒和收缩套松脱、使收缩套保持在完全收缩状态;在收缩套完全收缩状态,连接芯杆的定位抵挡部对机械零件与其相对的面轴向抵挡,收缩套对与机械连接与其相对的面轴向抵挡,收缩套、套筒、限位机构将机械零件连接固定在 连接芯杆上。
  25. 一种包括如权利要求1至17任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    所述收缩连接结构还包括二个以上的被连接件;在被连接件上均设有与连接芯杆配合的通孔;
    所述的连接芯杆为仅起连接作用的连接件,所述的定位抵挡部设置在连接芯杆的一端的外周上形成连接芯杆头;
    连接方法包括:
    将连接芯杆设有楔形抵挡部的一端穿过全部被连接件的通孔,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    将收缩套、连接芯杆、套筒安装在一起;收缩套安装在连接芯杆上,套筒安装在收缩套外;驱动套筒,套筒、收缩套、全部被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    套筒驱动收缩套收缩,套筒继续向被连接件方向运动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,收缩件的楔形抵挡部伸入连接芯杆相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
  26. 一种包括如权利要求1至17任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    收缩连接结构还包括一个以上的机械零件;
    所述的连接芯杆为机械设备上的阶梯状的连接轴;
    在机械零件上设有与连接轴配合的通孔;
    连接方法包括:
    将机械零件从连接轴设有楔形抵挡部的一端安装在连接轴上,连接轴设有楔形抵挡部的部分凸出机械零件;
    将收缩套、连接轴、套筒安装在一起,收缩套安装在连接轴上,套筒安装在收缩套外;
    驱动套筒,套筒、收缩套、机械零件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接轴上相应的楔形抵挡槽正对;
    驱动套筒,套筒驱动收缩套收缩,套筒继续向机械零件方向运动,收缩套由机械零件抵挡无轴向方向的运动仅径向方向收缩,收缩件的楔形抵挡部伸入连接轴相应的楔形抵挡槽内通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接轴的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接轴安装在一起,收缩套对与其相对的机械零件轴向抵挡, 连接轴的定位抵挡部对与其相对的机械零件轴向抵挡,收缩连接组件与机械零件连接固定在一起。
  27. 一种使用如权利要求1至7、17至15任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
    所述限位机构为螺纹锁紧机构,包括轴向设置在连接芯杆本体上的螺纹部,和设置在所述套筒上与所述收缩套容置空间连通的螺纹孔;
    连接方法包括:
    将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    将收缩套、连接芯杆、套筒安装在一起,收缩套安装在连接芯杆上,套筒安装在收缩套外,收缩套的螺纹孔螺纹连接在连接芯杆的螺纹部上;
    对连接芯杆的定位抵挡部施加朝向套筒方向的轴向力,同时旋转套筒,通过套筒上的螺纹孔与连接芯杆本体上的螺纹部螺纹配合,套筒向被连接件方向运动,直至套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    继续对连接芯杆的定位抵挡部施加朝向套筒方向的轴向力、同时旋转套筒,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动,仅在径向方向收缩;连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止旋转或继续旋转使套筒继续相对收缩套滑动一段距离停止运动;
    通过套筒上的螺纹孔与连接芯杆本体上的螺纹部螺纹锁紧防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
  28. 一种使用如权利要求1至7、17至15任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;收缩连接组件还包括圆管;所述限位机构为螺纹锁紧机构,包括设置在所述套筒上与所述收缩套容置空间连通的螺纹孔,设置在圆管外周面上与套筒的螺纹孔配合的外螺纹部;在圆管的侧壁上径向设有单瓣收缩件容置侧孔;
    连接方法包括:
    将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件,定位抵挡部、被连接件抵靠在一起;
    将收缩套、套筒、圆管、连接芯杆安装在一起;将单瓣收缩件安装在圆管的相应的单瓣收缩件容置侧孔内,安装在一起的圆管和收缩套安装在连接芯杆上,套筒安装在圆管和收缩套外,收缩套朝向被连接件的一侧凸出套筒并抵靠在被连接件上,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    旋转套筒,通过套筒上的螺纹孔与圆管上的螺纹部螺纹配合,套筒向被连接件方向运动,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止旋转或再 继续旋转使套筒继续相对收缩套滑动一段距离停止运动;
    通过套筒上的螺纹孔与圆管上的螺纹部螺纹锁紧防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
  29. 一种使用如权利要求1至7、17至15任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
    所述的限位机构为安装在套筒与连接芯杆之间的限位件;
    连接方法包括:
    将连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    将收缩套、连接芯杆、套筒安装在一起;收缩套安装在连接芯杆上,套筒安装在收缩套外;对连接芯杆的定位抵挡部和套筒施加相对方向的轴向力,套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    再对对连接芯杆的定位抵挡部和套筒施加相对方向的轴向力,套筒向被连接件方向运动,收缩套由被连接件抵挡无轴向方向的运动仅径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;
    再装上限位机构,限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
  30. 一种使用如权利要求1至5、8至20任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    所述收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
    所述收缩连接组件还包括内弹簧和外弹簧;在收缩套与连接芯杆配合的连接芯杆容置空间的孔壁上径向设有内弹簧容置槽,在每瓣收缩件的外周面上径向设有外弹簧容置槽;
    连接方法包括:
    合抱在一起的收缩件通过外弹簧安装在外弹簧容置槽内组成收缩套安装在套筒内,并使内弹簧安装在收缩套内的内弹簧容置槽内;
    连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    将安装在一起的套筒和收缩套安装在连接芯杆上;套筒、收缩套、被连接件、定位抵挡部抵靠在一起,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    套筒驱动收缩套收缩,套筒的驱动锥面相对于收缩套的收缩用锥面滑动,收缩套由被连接件抵挡无轴向方向的运动,仅在径向方向收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩 的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩套对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
  31. 一种使用如权利要求1至5、8至20任意一项所述的收缩连接组件的收缩连接结构的连接方法,其特征在于连接方法包括:
    所述收缩连接结构还包括一个以上的被连接件,在被连接件上均设有与连接芯杆配合的通孔;
    所述收缩连接组件还包括外弹簧;在每瓣收缩件的外周面上径向设有外弹簧容置槽;
    连接方法包括:
    将收缩件通过外弹簧合抱在一起组成所述收缩套,外弹簧完全容置在外弹簧容置槽内;
    连接芯杆设有楔形抵挡部的一端穿过被连接件,连接芯杆设有楔形抵挡部的部分凸出被连接件;
    将安装在一起收缩套安装在连接芯杆上,套筒安装在收缩套外;收缩套朝向被连接件的一侧凸出套筒并抵靠在被连接件上,收缩套上的楔形抵挡部与连接芯杆上相应的楔形抵挡槽正对;
    套筒驱动收缩套收缩,连接芯杆上的楔形抵挡部伸入收缩套的楔形抵挡槽通过面与面相互抵挡形成卡合,直至收缩套不再径向运动,收缩套处于完全收缩的状态,套筒停止运动或再继续相对收缩套滑动一段距离停止运动;限位机构作用于套筒防止套筒和收缩套松脱,使收缩套保持在完全收缩状态;
    在收缩套完全收缩状态,连接芯杆的楔形抵挡部伸入收缩套相应的楔形抵挡槽内通过面与面相互抵挡形成卡合将收缩套与连接芯杆安装在一起,收缩套对与其相对的被连接件轴向抵挡,连接芯杆的定位抵挡部对与其相对的被连接件轴向抵挡,收缩连接组件与被连接件连接固定在一起。
PCT/CN2015/086416 2014-08-08 2015-08-07 一种收缩连接组件、收缩连接结构及连接方法 WO2016019916A1 (zh)

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CN109938821A (zh) * 2019-03-29 2019-06-28 中南大学湘雅医院 便拆卸的伞状接骨螺栓
CN114876968A (zh) * 2022-07-12 2022-08-09 四川工程职业技术学院 一种定位锥的连接结构
CN115441352A (zh) * 2022-09-05 2022-12-06 国网福建省电力有限公司 一种配网带电施工器具及其使用方法

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CN109938821A (zh) * 2019-03-29 2019-06-28 中南大学湘雅医院 便拆卸的伞状接骨螺栓
CN114876968A (zh) * 2022-07-12 2022-08-09 四川工程职业技术学院 一种定位锥的连接结构
CN114876968B (zh) * 2022-07-12 2022-10-11 四川工程职业技术学院 一种定位锥的连接结构
CN115441352A (zh) * 2022-09-05 2022-12-06 国网福建省电力有限公司 一种配网带电施工器具及其使用方法

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