WO2019192567A1 - 哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构 - Google Patents

哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构 Download PDF

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Publication number
WO2019192567A1
WO2019192567A1 PCT/CN2019/081392 CN2019081392W WO2019192567A1 WO 2019192567 A1 WO2019192567 A1 WO 2019192567A1 CN 2019081392 W CN2019081392 W CN 2019081392W WO 2019192567 A1 WO2019192567 A1 WO 2019192567A1
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Prior art keywords
thread
spiral
taper
tapered
bidirectional
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PCT/CN2019/081392
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English (en)
French (fr)
Inventor
游奕华
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玉环胜友工具有限公司
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Application filed by 玉环胜友工具有限公司 filed Critical 玉环胜友工具有限公司
Publication of WO2019192567A1 publication Critical patent/WO2019192567A1/zh
Priority to US17/036,240 priority Critical patent/US20210010527A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F16B35/044—Specially-shaped ends
    • F16B35/047—Specially-shaped ends for preventing cross-threading, i.e. preventing skewing of bolt and nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30—Locking exclusively by special shape of the screw-thread

Definitions

  • the invention belongs to the technical field of equipment, in particular to a dumbbell-shaped taper left small right large bidirectional taper threaded bolt and nut connecting structure, that is, a dumbbell-like (left taper is smaller than right taper) asymmetric bidirectional taper thread bolt Connection structure with nut (hereinafter referred to as "bore and nut of bidirectional tapered thread").
  • Thread is one of the most basic industrial technologies. She is not a specific product. It is a key common technology in the industry. Its technical performance must be embodied in specific products as an application carrier. It is widely used in various industries.
  • the existing thread technology has high standardization level, mature technical theory and long-term practical application. When it is fastened, it is tightened thread; when it is sealed, it is sealed thread; when it is used, it is driven thread.
  • the inclined surface refers to a smooth plane inclined to the horizontal plane, and the spiral is a "beveled” deformation.
  • the thread is like a slope wrapped around the outside of the cylinder. The smoother the slope, the greater the mechanical advantage (see Figure 7) (Yang Jingshan, Wang Xiuya , “Discussion on the Principles of Screws", “Gaussian Arithmetic Research”).
  • the "bevel principle" of modern thread is a slope slider model based on the law of slope (see Figure 8). It is believed that when the static load and temperature change are not large, when the angle of the thread is less than or equal to the equivalent friction angle, the thread The deputy has a self-locking condition.
  • the angle of the thread (see Figure 9), also known as the thread lead angle, is the angle between the tangent of the helix on the medium-diameter cylinder and the plane perpendicular to the axis of the thread, which affects the self-locking and anti-looseness of the thread.
  • the equivalent friction angle is the corresponding friction angle when the different friction forms are finally converted into the most common beveled slider form.
  • the wedge-shaped thread has a wedge-shaped bevel at an angle of 25° to 30° to the axis of the thread at the bottom of the triangular thread (commonly known as a common thread), and the actual operation takes 30°. Wedge bevel. All along, people have studied and solved the problem of thread anti-looseness from the technical level and technical direction of the thread profile.
  • the wedge thread technology is no exception, which is the specific application of the wedge technology.
  • the object of the present invention is to provide a bolt-and-nut connection structure of a bidirectional taper thread with reasonable design, simple structure, good connection performance and locking performance.
  • the present invention adopts the following technical solutions: the bolt-and-nut connection structure of the dumbbell-shaped (the left side taper is smaller than the right taper) asymmetric bidirectional taper thread is composed of an asymmetric bidirectional taper thread internal thread and The asymmetrical bidirectional taper thread external thread is composed of a threaded connection pair, which is a special thread pair technology which combines the characteristics of the conical pair and the screw motion technology.
  • the bidirectional taper thread is a synthetic bidirectional cone and A threaded technique characterized by a helical structure, the two-way cone consisting of two single cones, two single cones with the left side and the right taper direction facing each other and the left side cone taper being smaller than the right side cone taper a bidirectional composition, the bidirectional cone is spirally distributed on the outer surface of the columnar parent body to form an external thread and/or the above bidirectional cone is spirally distributed on the inner surface of the cylindrical base body to form an internal thread, regardless of the internal thread external thread
  • the complete unit body thread is a dumbbell-like special bidirectional cone geometry with a small inner end and a large taper on the left side and a taper on the left side.
  • the two-way tapered threaded bolt and nut defined as a dumbbell-like asymmetric bidirectional tapered thread
  • dumbbell-like asymmetric bidirectional tapered thread can be expressed as: "On a cylindrical or conical surface, with a defined left side taper and right side taper and a left side taper and An asymmetrical bidirectional tapered hole (or an asymmetric bidirectional truncated cone) with a right taper direction opposite to the right taper and a taper on the left side, and a spiral and a small intermediate along the spiral continuous and/or discontinuously distributed Large dumbbell-like special bidirectional tapered geometry at both ends.”
  • the screw head and the screw tail of the asymmetric bidirectional tapered thread may be incomplete bidirectional tapered geometry. Different from the modern thread technology, the thread technology has changed from the original modern threaded internal thread engagement relationship to the two-way tapered thread internal thread external thread.
  • the bolt and nut of the bidirectional taper thread include a bidirectional truncated cone body spirally distributed on the outer surface of the columnar parent body and a bidirectional tapered hole spirally distributed on the inner surface of the cylindrical mother body, that is, an external thread including a threaded engagement with each other.
  • the internal thread With the internal thread, the internal thread is distributed in a spiral bidirectional tapered hole and exists in the form of "non-physical space”.
  • the external thread is distributed in a spiral bidirectional truncated cone and exists in the form of "material entity”.
  • the non-physical space refers to a space environment capable of accommodating the above-mentioned material entity, the internal thread is a containment member, and the external thread is a containment member: the internal thread and the external thread are a one-way bi-directional tapered geometry that is screwed together and huddled together.
  • the two-way tapered hole section contains a bidirectional truncated cone body , that is, the internal thread is a section of the corresponding external thread.
  • the threaded connecting pair is formed by a spiral outer tapered surface and a spiral inner tapered surface forming a conical pair to form a thread pair, and the outer tapered surface and the inner cone of the bidirectional tapered outer spherical cone
  • the inner tapered surfaces are bidirectional conical surfaces.
  • the one-way force distributed on the inclined surface and the inner and outer threads are different from the meshing relationship between the inner tooth and the outer tooth body.
  • the bolt and nut of the two-way taper thread, the thread body is a two-way cone. Whether the body is distributed on either side of the left side or the right side, the single cone passes through the conical axis.
  • the cross section is bidirectionally composed of two plain lines of the cone, which is a bidirectional state.
  • the plain line is the intersection of the conical surface and the plane passing through the conical axis.
  • the line, the bi-conical threaded bolt and nut connection structure of the cone principle shows the axial force and the anti-axis force, both of which are combined by the two-way force, the axial force and the corresponding counter-axis force against the top
  • the internal thread and the external thread are in a cohesive relationship, that is, the threaded pair is held by the internal thread to hold the external thread, that is, a section of the tapered hole (inner cone) to converge the corresponding section cone (outer cone) until the hull is sized
  • Self-locking is realized by self-positioning or until the sizing interference contact is achieved, that is, the conical hole and the truncated cone body are radially entangled to realize self-locking or self-positioning of the inner cone and the outer cone, thereby realizing self-locking of the thread pair Tight or self-positioning
  • the internal thread and the external thread of the conventional thread constitute a threaded connection pair, and the thread connection performance is achieved by the mutual a
  • the outer cone constitutes a conical pair
  • the inner conical surface of the inner cone encloses the outer conical surface of the outer cone, and the inner conical surface is in close contact with the outer conical surface.
  • the inner conical axial force and the outer conical anti-axis force are the concepts of the force unique to the bi-directional taper thread technology of the present invention, that is, the conical pair technology.
  • the inner cone exists in a form similar to a bushing. Under the action of external loads, the inner cone generates an axial force directed or pressed against the axis of the cone.
  • the axial force is mirrored by a pair of axes centered on the axis of the cone.
  • the axial force cross-section through the conical axis is mirror-directionally distributed on both sides of the conical axis and perpendicular to the two-dimensional line of the cone
  • the two centripetal forces pointing or speaking to the common point of the conical axis and when the above-mentioned cone and spiral structure are combined into a thread and applied to the thread pair the above-mentioned axial force cross-section through the thread axis is centered on the thread axis
  • the mirror image and/or the approximate mirror image are bidirectionally distributed on both sides of the thread axis and respectively perpendicular to the two prime lines of the cone and directed or pressed against a common point of the thread axis and/or approximately centripetal forces, said axis
  • the force is distributed in an axially and circumferentially manner on the conical axis and/or the thread axis, and the axial force correspond
  • the outer cone exists in a shape similar to the axis, and has a strong ability to absorb various external loads.
  • the outer cone generates a counter-axis force with respect to the top of each inner core of the inner cone, and the anti-axis force is A pair of reverse centripetal forces distributed in a mirror image centered on the axis of the cone and perpendicular to the two prime lines of the cone respectively, that is, the cross-axis force is transmitted through the conical axis as a mirror image bidirectionally distributed on the conical axis And the two opposite centripetal forces that are perpendicular to the two plain lines of the cone and are directed by the common point of the conical axis or pressed toward the inner conical surface, and when the above-mentioned cone and spiral structure are combined into a thread and applied to the thread pair,
  • the anti-axis force is perpendicular to the two sides of the thread axis and is perpendicular to the two axial lines of the cone and is common to the thread
  • the common point is directed to or consists of two opposing centripetal forces pressed against the conical surface of the internal thread, said counter-axis force being densely distributed in the axial and circumferential manner on the conical axis and/or a thread axis, the counter-axis force corresponding to a counter-axis force angle, and the angles of the two counter-heart forces constituting the counter-axis force constitute the above-mentioned anti-axis force angle, the anti-axis
  • the size of the heart angle depends on the taper size of the cone, ie the cone angle.
  • the axial force and the anti-axis force are generated when the inner and outer cones of the cone pair are in effective contact, that is, the effective contact between the inner cone and the outer cone of the cone pair always has a pair of corresponding and opposite axial and anti-axis
  • the heart force, the axial force and the anti-axis force are both a bidirectional force centered on the conical axis and/or the thread axis and mirrored bidirectionally, rather than a one-way force, the conical axis coincides with the thread axis
  • the axes are the same axis and/or approximately the same axis, the anti-axis force and the axial force are reverse collinear and when the above-mentioned cone and spiral structure are combined into a thread and the thread pair is reversed collinear and/or approximate
  • the reverse collinear line, through the cohesion of the inner cone and the outer cone until the interference, the axial force and the anti-axial force generate pressure and are evenly distributed axially and circumfer
  • the concentric motion of the inner cone and the outer cone continues until the conical pair reaches the pressure formed by the interference fit, and the inner cone and the outer cone are combined, that is, the above-mentioned pressure can achieve the inner cone hold
  • the outer cone forms a monolithic structure and does not arbitrarily change the direction of the body structure similar to the above-mentioned overall structure, and the inner and outer cones are separated from each other by gravity, and the conical pair is self-locking.
  • the thread pair is self-locking. This self-locking property also has a certain resistance to other external loads other than gravity which may cause the inner and outer cones to be separated from each other.
  • the cone pair also has an inner cone and an outer cone. Self-positioning, but not any axial force angle and/or anti-axis force angle can make the cone pair self-locking and self-positioning.
  • the conical pair When the axial force angle and/or the anti-axis force angle are less than 180° and greater than 127°, the conical pair has self-locking property, and the axial force angle and/or the anti-axis force angle are infinitely close to 180°, the conical pair
  • the self-locking property is the best, the axial load capacity is the weakest, and the axial force angle and/or the anti-axis force angle are equal to or less than 127° and greater than 0°, then the cone pair is weak in self-locking and/or non-self.
  • the lock-in interval, the axial force angle and/or the anti-axis force angle tend to change in an infinitely close to 0° direction, and the self-locking property of the cone pair changes in the direction of the attenuation trend until it has no self-locking ability, and the axial load The ability is in the direction of increasing trend until the axial load capacity is the strongest.
  • the cone pair When the axial force angle and/or the anti-axis force angle are less than 180° and greater than 127°, the cone pair is in a strong self-positioning state, and it is easy to achieve strong self-positioning of the inner and outer cones, the axial force angle and/or the anti-axis force angle.
  • the infinity is close to 180°, the inner and outer cones of the conical pair have the strongest self-positioning ability, and the axial force angle and/or the anti-axis force angle are equal to or less than 127° and greater than 0°, and the conical pair is in a weak self-positioning state.
  • the axial force angle and/or the anti-axis force angle tend to change in an infinitely close to 0° direction, and the self-positioning ability of the inner and outer cones of the cone pair changes in the direction of the attenuation trend until it is nearly completely free from self-positioning ability.
  • the two-way tapered threaded coupling pair has a non-reversible one-sided two-way containment and containment relationship of a single-sided load bearing on the one-sided side of the conical surface compared to the one-way tapered thread of the single-cone body previously invented by the applicant.
  • the reversibility of the tapered thread is bidirectionally contained on the left and right sides, so that the left side of the conical surface can be carried and/or the right side of the conical surface and/or the right conical surface of the left conical surface can be respectively carried and/or the right side of the conical surface
  • the conical surface is carried in both directions at the same time, which restricts the disordered degree of freedom between the tapered hole and the truncated cone.
  • the helical movement allows the bolted-nut connection structure of the bidirectional tapered thread to obtain the necessary degree of freedom, and the cone is effectively synthesized.
  • the technical characteristics of the pair and the thread pair form a new thread technology.
  • the bidirectional taper threaded bolt and nut in use have a bidirectional tapered threaded conical surface of the bidirectional taper threaded external thread and a bidirectional tapered bore conical surface of the bidirectional taper threaded internal thread.
  • the two-way tapered threaded bolt and nut, the bi-directional cone of the conical pair, that is, the truncated cone body and/or the tapered hole, can be self-locking and/or self-positioning of the threaded connection pair without any taper or any taper angle.
  • the inner and outer cones of the two-way cone must reach a certain taper or a certain taper angle, and the bolt-and-nut connection structure of the two-way taper thread has self-locking and self-positioning, the taper
  • the asymmetrical bidirectional taper thread internal thread and the external thread of the nut connecting structure are that the left taper is smaller than the right taper, and the left taper corresponds to the left taper angle, that is, the first taper angle ⁇ 1, preferably, 0° ⁇ a cone angle ⁇ 1 ⁇ 53°, preferably, the first taper angle ⁇ 1 takes a value of 2° to 40°; the right taper corresponds to the right taper angle, that is, the second taper angle
  • the bolt and the nut of the bidirectional tapered thread wherein the external thread is disposed on the outer surface of the columnar body to form a bolt, wherein the columnar body has a screw body, and the outer surface of the screw has a spiral shape on the outer surface thereof.
  • a truncated cone body the truncated cone body comprises an asymmetric bidirectional truncated cone body
  • the columnar matrix body may be solid or hollow, including a cylinder and/or a non-cylindrical workpiece and object that need to be threaded on the outer surface thereof. , including non-cylindrical surfaces such as cylindrical surfaces and conical surfaces.
  • the bolt and the nut of the bidirectional taper thread, the asymmetric bidirectional taper body, that is, the external thread, is characterized by being composed of two truncated cone bodies having the same lower bottom surface and the same upper top surface but different cone heights.
  • the top surface is symmetrically and oppositely joined to each other in a spiral shape and the lower bottom surface is at both ends of the bidirectional truncated cone body and forms a dumbbell-like asymmetric bidirectional taper thread, respectively, including the lower bottom surface of the adjacent bidirectional truncated cone body Engaging and/or or respectively engaging a lower surface of an adjacent bidirectional truncated cone with a helically threaded thread, the external thread comprising a first helical conical surface of the truncated cone body and a second helical conical body of the truncated cone body
  • the surface and the outer spiral line, in the section passing through the thread axis, the complete single-section asymmetric bidirectional taper external thread is a dumbbell-like shape with a small center at both ends and a taper of the left side of the truncated cone.
  • the asymmetric bidirectional truncated cone body comprises a bidirectional truncated cone conical surface, and the left conical surface, that is, the angle between the two plain lines of the first spiral conical surface of the truncated cone body is
  • the taper angle ⁇ 1 the first spiral conical surface of the truncated cone body forms a left side taper and is distributed in the right direction
  • the right conical surface that is, the angle between the two plain lines of the second spiral conical surface of the truncated cone body is the second
  • the taper angle ⁇ 2 the second spiral conical surface of the truncated cone body forms a right taper and is distributed in the left direction
  • the first taper angle ⁇ 1 is opposite to the taper direction corresponding to the second taper angle ⁇ 2
  • the plain line is a cone a surface intersecting a plane passing through the axis of the cone, the first spiral conical surface of the truncated cone body of the bidirectional trun
  • the central axis of the mother body is axially moved at a constant speed, and the outer surface of the spiral formed by the two oblique sides of the right-angled trapezoidal combination has the same shape, and the right-angled trapezoidal combination means that the lower bottom edge is the same and the upper bottom edge is the same but the right angle side
  • the upper bases of the two different trapezoidal trapezoids are symmetrically and oppositely joined and the lower base is respectively at a particular geometry at the ends of the right-angled trapezoidal combination.
  • the bolt and the nut of the bidirectional tapered thread wherein the internal thread is disposed on the inner surface of the cylindrical body to form a nut, wherein the cylindrical body has a nut body, and the inner surface of the nut has a spiral shape a tapered bore that includes an asymmetric bi-directional tapered bore, the tubular precursor including a cylindrical body and/or a non-cylindrical workpiece and object that require internal threads on the inner surface thereof,
  • the inner surface includes an inner surface geometry such as a cylindrical surface and a conical surface.
  • the bolt and the nut of the bidirectional taper thread is characterized by being composed of two tapered holes having the same lower bottom surface and the same upper top surface but different cone heights.
  • the surfaces are symmetrically and mutually joined to each other in a spiral shape and the lower bottom surface is at both ends of the bidirectional tapered hole and form a dumbbell-like asymmetric bidirectional tapered thread, which respectively engages the lower bottom surface of the adjacent bidirectional tapered hole And/or or respectively threaded into a spiral shape with the lower bottom surface of the adjacent bidirectional tapered hole, the internal thread including the tapered first conical conical surface and the conical second conical conical surface And the inner helix, in the section passing through the axis of the thread, the complete single-section asymmetric bidirectional taper internal thread is a dumbbell-like type with a small intermediate end and a tapered taper on the left side of the taper of the right taper.
  • the special bidirectional tapered geometry wherein the bidirectional tapered hole comprises a bidirectional tapered hole conical surface, and the left conical surface, that is, the angle between the two plain lines of the first spiral conical surface of the conical hole is the first taper angle 11, conical hole first spiral conical surface Forming the left side taper and distributing in the right direction, the right conical surface, that is, the two spiral lines of the second spiral conical surface of the tapered hole form an angle formed by the second taper angle ⁇ 2, and the second spiral conical surface of the tapered hole Forming a right taper and a leftward distribution, the first taper angle ⁇ 1 is opposite to a taper direction corresponding to the second taper angle ⁇ 2, and the plain line is a line of intersection of the cone surface and a plane passing through the cone axis, Conical hole of the bidirectional tapered hole, the first spiral conical surface and the conical hole, the second spiral conical surface formed in the same shape as the lower base of the cylindrical main body, and the upper bottom side is the
  • the outer surface of the spiral formed by the two oblique sides of the combined body has the same shape, and the right-angled trapezoidal joint refers to the upper base symmetry of two right-angled trapezoids having the same lower bottom edge and the same upper bottom edge but different right-angled sides. And facing each other And the lower bottom edge is respectively at a special geometry at both ends of the right angle trapezoidal combination body.
  • the relationship with the workpiece includes a rigid connection and a non-rigid connection.
  • the rigid connection means that the nut supporting surface and the workpiece supporting surface are mutually supporting surfaces, and includes a single nut and a double nut.
  • the non-rigid connection means that the opposite side end faces of the two nuts are mutually supporting surfaces and/or Or the gasket between the opposite side end faces of the two nuts is an indirect mutual support surface, and is mainly applied to non-rigid materials such as non-rigid materials or transmission parts or to application fields through double nut installation, etc.
  • a workpiece refers to a connected object including a workpiece
  • the spacer refers to a spacer including a spacer.
  • the bolts and nuts of the bidirectional tapered thread adopt a bolt and double nut connection structure and are rigidly connected with the workpiece to be fastened, and the thread working support surface is different.
  • the cylindrical base body is located on the left side of the workpiece to be fastened, That is, when the left end surface of the workpiece to be fastened and the right end surface of the cylindrical nut body, that is, the left nut body, are the left nut body and the locking support surface of the workpiece to be fastened, the left nut body and the columnar body, that is, the screw body
  • the left spiral conical surface of the bidirectional tapered thread of the bolt that is, the first spiral conical surface of the conical hole and the first spiral conical surface of the conical body are the tapered threaded bearing surface and the first spiral conical surface of the tapered hole
  • the first spiral conical surface of the truncated cone body is a supporting surface, and when the cylindrical main body is located on the right side of the workpiece to be fastened, that is, the right
  • the right nut body and the columnar parent body that is, the screw body, that is, the right side spiral conical surface of the bidirectional taper thread of the bolt, that is, the conical hole second spiral conical surface and Conical body second spiral cone
  • the bearing surface is tapered threaded hole of the second tapered surface and the second helical conical spiral conical surface of the truncated cone body mutually support surface.
  • the bolt and the nut of the bidirectional tapered thread adopt a bolt and a single nut connection structure and are rigidly connected with the workpiece to be fastened.
  • the cylindrical body, that is, the nut body is a single nut.
  • the right end surface of the workpiece and the left end surface of the nut body are the locking support surfaces of the nut body and the workpiece to be fastened, and the nut body and the columnar body are
  • the screw body is the right side spiral conical surface of the bidirectional taper thread of the bolt, that is, the conical hole second spiral conical surface and the truncated cone second spiral conical surface are the tapered threaded bearing surface and the tapered hole is second spiral
  • the conical surface and the second spiral conical surface of the truncated cone body are mutually supporting surfaces; when the bolt hex head is located on the right side, the cylindrical body, that is, the nut body, that is, the single nut is located on the left side of the workpiece to be fastened, the bolt and When the single nut connection structure is working, the left end surface of the workpiece and the right end surface of the nut body are the locking support surfaces of the nut body and
  • the bolt and the nut of the bidirectional tapered thread adopt a connection structure of the bolt and the double nut, and when the relationship with the workpiece to be fastened is non-rigid connection, the thread working support surface, that is, the tapered thread bearing surface is different, and the cylindrical body includes the left The side nut body and the right nut body, the right end surface of the left nut body and the left end surface of the right nut body are in direct contact with each other and are locking bearing surfaces, and the right end surface of the left nut body is locking support
  • the left side nut body and the columnar parent body that is, the screw body, that is, the left side spiral conical surface of the bidirectional tapered thread of the bolt, that is, the first spiral conical surface of the conical hole and the first spiral conical surface of the conical body are tapered
  • the threaded bearing surface and the first spiral conical surface of the tapered hole and the first spiral conical surface of the truncated cone body are mutually supporting surfaces, and when the left end surface
  • the bolt and the nut of the bidirectional tapered thread adopt a connection structure of the bolt and the double nut, and when the relationship with the workpiece to be fastened is non-rigid connection, the thread working support surface, that is, the tapered thread bearing surface is different, and the cylindrical body includes the left The side nut body and the right nut body and the two cylindrical bodies, that is, a spacer such as a gasket between the left nut body and the right nut body, the right end surface of the left nut body and the left side of the right nut body The end faces are indirectly in contact with each other via the spacers, thereby indirectly interlocking the bearing surfaces.
  • the left side nut body and the columnar parent body that is, the screw body, that is, the left side spiral conical surface of the bidirectional tapered thread of the bolt, that is, the first spiral conical surface of the conical hole and the first spiral conical surface of the conical body are The tapered threaded bearing surface and the first spiral conical surface of the tapered hole and the first spiral conical surface of the truncated cone body are mutually supporting surfaces, and when the cylindrical parent body is located on the right side of the gasket, that is, the right side surface of the gasket and the right side nut The left end face of the body is the lock of the right nut body When the bearing surface is supported, the right side nut body and the columnar parent body, that is, the screw body, that is, the right side spiral conical surface of the
  • the bolt and the nut of the bidirectional tapered thread adopt a bolt and double nut connection structure and the non-rigid connection with the workpiece to be fastened, when the cylindrical body located on the inner side is the nut body adjacent to the workpiece to be fastened has
  • the columnar parent body, that is, the screw body, that is, the bolts are effectively combined, that is, the internal thread constituting the tapered thread connection pair and the external thread are effectively entangled together, and the cylindrical body on the outer side, that is, the nut body not adjacent to the workpiece to be fastened, can be
  • the application conditions need to be kept intact and/or removed with only one nut (such as those that require lightweight equipment or do not require double nuts to ensure the reliability of the connection technology).
  • the removed nut body does not act as a coupling nut. It is used only as a mounting process nut.
  • the internal thread of the mounting process nut is made of bidirectional taper thread, and can also be a one-way taper thread and other threads that can be screwed with the taper thread, including triangular threads.
  • a nut body made of a non-tapered thread such as a trapezoidal thread or a zigzag thread to ensure the reliability of the connection technology.
  • the threaded connection pair is a closed-loop fastening technology system, that is, the internal thread and the external thread of the tapered threaded connection pair are effectively entangled together, and the tapered threaded connection pair will be self-contained independent technical system without relying on the technical compensation of the third party.
  • the connection technology system that is, even if there is no support for other objects, including the gap between the tapered threaded connection pair and the workpiece being fastened, the effectiveness of the tapered threaded connection pair will not be affected, which will greatly reduce the effectiveness.
  • the bolt and the nut of the bidirectional taper thread are connected by a screw connection of the bidirectional tapered hole and the bidirectional truncated cone body when the transmission is connected, and are bidirectionally supported.
  • the bidirectional truncated cone body and the bidirectional cone There must be clearance between the holes. If there is oil lubrication between the internal thread and the external thread, it will easily form the bearing oil film. The clearance is favorable for the formation of the oil film.
  • the two-way taper thread bolt and nut are applied.
  • the transmission connection is equivalent to a set of sliding bearing pairs consisting of one pair and/or several pairs of sliding bearings, that is, each section of the bidirectional tapered internal thread is bidirectionally contained corresponding to a bidirectional tapered external thread, forming a pair of sliding bearings, which constitute
  • the number of sliding bearings is adjusted according to the application conditions, that is, the bidirectional tapered internal thread and the bidirectional tapered external thread are effectively bidirectionally engaged, that is, the effective two-way contact is accommodated and the number of contained thread segments is designed according to the application condition, through the bidirectional tapered hole
  • the bidirectional truncated cone body is accommodated and positioned in multiple directions such as radial, axial, angular, circumferential, etc., preferably, the bidirectional tapered body is accommodated through the bidirectional tapered hole and is radially
  • the main positioning of the orientation is supplemented by the axial and angular auxiliary positioning to form the multi-directional positioning of the inner and outer cones until the bi-directional conical
  • the technical performance is achieved by the screw connection of the bidirectional tapered hole and the bidirectional truncated cone body, that is, the first spiral conical surface of the truncated cone body and
  • the first spiral conical surface of the tapered hole is sized until the interference and/or the second spiral conical surface of the truncated cone body and the second spiral conical surface of the conical hole are sizing until the interference is achieved, according to the application condition
  • One direction bearing and/or two directions are respectively carried at the same time, that is, the bidirectional truncated cone body and the bidirectional tapered hole are guided by the spiral under the inner cone and the outer diameter of the outer cone until the conical hole first spiral conical surface and cone
  • the first spiral conical surface of the table body is engaged in one direction or both directions to carry the sizing fit or until the sizing interference contact and/or the second spiral conical surface of the tapered hole and the second spiral cone of the truncated cone body
  • the bidirectional tapered body is accommodated by the bidirectional tapered hole and is assisted by the axial and circumferential main positioning and the axial and angular auxiliary positioning.
  • the multi-directional positioning of the inner and outer cones until the bi-directional conical bore conical surface and the bi-directional conical counter-cone surface cohesive to achieve self-positioning or until the sizing interference contact produces self-locking, forming a special synthesis of conical pairs and thread pairs
  • the technology ensures the efficiency and reliability of the taper thread technology, especially the bolts and nuts of the two-way taper thread, so as to achieve technical properties such as mechanical connection, locking, anti-loose, load bearing, fatigue and sealing.
  • the bolts and nuts of the two-way taper thread have the technical precision of the transmission precision, the bearing capacity, the self-locking locking force, the anti-loose ability, the sealing performance, and the first spiral of the truncated cone body.
  • the conical surface and the left taper formed thereof are the first taper angle ⁇ 1 and the second spiral conical surface of the truncated cone body and the right taper formed by the second taper angle ⁇ 2 and the first spiral conical surface of the tapered hole and
  • the formed left taper that is, the first taper angle ⁇ 1 and the tapered second conical conical surface and the right taper formed, that is, the magnitude of the second taper angle ⁇ 2.
  • the material friction coefficient, processing quality and application conditions of the columnar matrix and the cylindrical matrix also have a certain influence on the cone fit.
  • the right-angled trapezoidal combined body rotates at a constant speed, and the right-angled trapezoidal joint moves axially at the same distance as the lower bottom edge and the upper bottom edge is the same but the right angle side is different.
  • the length of the sum of the right-angled sides of the two right-angled trapezoids is at least one time.
  • the structure ensures that the first spiral conical surface of the truncated cone body and the second spiral conical surface of the truncated cone body and the first spiral conical surface of the conical hole and the second spiral conical surface of the conical hole have sufficient length to ensure two-way
  • the conical body conical surface cooperates with the bi-directional conical hole conical surface to have sufficient effective contact area and strength and the efficiency required for the helical motion.
  • the right angle trapezoidal combination body is rotated one time at a constant speed, and the right angle trapezoidal coupling body is axially moved by a distance equal to having the lower bottom edge and the upper bottom edge being the same but the right angle side is different.
  • the length of the sum of the right-angled sides of the two right-angled trapezoids is different.
  • the structure ensures that the first spiral conical surface of the truncated cone body and the second spiral conical surface of the truncated cone body and the first spiral conical surface of the conical hole and the second spiral conical surface of the conical hole have sufficient length to ensure two-way
  • the conical body conical surface cooperates with the bi-directional conical hole conical surface to have sufficient effective contact area and strength and the efficiency required for the helical motion.
  • the first spiral conical surface of the truncated cone body and the second spiral conical surface of the truncated cone body are continuous spiral surfaces or non-continuous spiral surfaces;
  • the first spiral conical surface of the hole and the second spiral conical surface of the tapered hole are continuous spiral faces or non-continuous spiral faces.
  • one end of the columnar base body is provided with a head larger than the outer diameter of the columnar parent body and/or one end and/or both ends of the columnar base body are provided with less than a columnar shape.
  • the head of the mother screw body has a bidirectional tapered external thread small diameter, and the connecting hole is a threaded hole provided on the nut. That is, the columnar parent body is connected to the head as a bolt, and the head and/or the heads at both ends are smaller than the bidirectional taper external thread diameter and/or the studs having the bidirectional taper external threads at both ends of the thread without the thread.
  • the connecting hole is provided in the nut.
  • the bolt-and-nut connection structure of the two-way taper thread has the advantages of reasonable design and simple structure, and the conical pair formed by centering the inner and outer cone coaxial inner and outer diameters is bidirectionally supported or sizing until Interference fit to achieve fastening and connection functions, easy to operate, large locking force, large bearing capacity, good anti-loose performance, high transmission efficiency and precision, good mechanical sealing effect, good stability, can prevent loosening during connection Disengagement, with self-locking and self-positioning.
  • FIG. 1 is a schematic view showing a connection structure of a bolt and a double nut of a dumbbell-like (left taper to the right taper) asymmetric bidirectional taper thread according to the first embodiment of the present invention.
  • FIG. 2 is a schematic view showing the thread structure of a bolt-shaped and external-threaded complete unit body of a dumbbell-like (left taper to the right taper) bidirectional taper thread external thread according to the first embodiment of the present invention.
  • FIG 3 is a schematic view showing the thread structure of the nut body and the internal thread complete unit body of the dumbbell-like (the left side taper is smaller than the right taper) bidirectional taper thread internal thread according to the first embodiment of the present invention.
  • FIG. 4 is a schematic view showing the connection structure of a bolt and a single nut of a dumbbell-like (left taper to the right taper) asymmetric bidirectional taper thread according to the second embodiment of the present invention.
  • FIG. 5 is a schematic view showing the connection structure of a bolt and a double nut of a dumbbell-like (the left side taper is smaller than the right taper) asymmetric bidirectional taper thread according to the third embodiment of the present invention.
  • FIG. 6 is a schematic view showing the connection structure of a bolt-like double-nut (with a gasket in the middle of a double nut) of a dumbbell-like type (the left side taper is smaller than the right side taper) according to the fourth embodiment of the present invention.
  • Figure 7 is a graphical representation of "the thread of the prior art thread technology is a bevel on a cylindrical or conical surface" as referred to in the background art of the present invention.
  • Fig. 8 is a view showing the "principal thread technology principle - the bevel slider model of the bevel principle" involved in the background art of the present invention.
  • Figure 9 is a graphical representation of "Threaded Lift Angle of Existing Thread Technology" in the background art of the present invention.
  • the tapered thread 1 the cylindrical body 2, the nut body 21, the nut body 22, the columnar body 3, the screw body 31, the tapered hole 4, the bidirectional tapered hole 41, the bidirectional tapered hole conical surface 42, the taper
  • the embodiment adopts a bolt and double nut connection structure, and includes a bidirectional truncated cone body 71 which is spirally distributed on the outer surface of the columnar base body 3 and is spirally distributed on the cylindrical matrix body 2 .
  • the bidirectional tapered hole 41 of the inner surface comprises an external thread 9 and an internal thread 6 which are screwed with each other, and the internal thread 6 is distributed in a spiral bidirectional tapered hole 41 and exists in a "non-physical space” form, and an external thread 9 is distributed in a spiral bidirectional truncated cone body 71 and exists in the form of "material entity".
  • the internal thread 6 and the external thread 9 are the relationship between the containing member and the contained member: the internal thread 6 and the external thread 9 are one section.
  • the bidirectional tapered geometry is sleeved and hung together until the interference fit, that is, the bidirectional tapered hole 41 contains a bidirectional truncated cone 71, and the bidirectional inclusion restricts the disorder between the tapered bore 4 and the truncated cone 7.
  • the degree of freedom, the spiral motion allows the bi-directional taper threaded bolt and the tapered threaded joint 10 of the nut to obtain the necessary degree of freedom, and effectively synthesizes the technical characteristics of the conical pair and the thread pair.
  • the bidirectional taper threaded bolt and the nut in the embodiment, the truncated cone body 7 and/or the tapered hole 4 described in the taper threaded coupling pair 10 reach a certain taper, that is, the cone forming the conical pair reaches a certain taper angle.
  • the tapered threaded coupling pair 10 is self-locking and self-aligning.
  • the taper includes a left taper 95 and a right taper 96, and the taper angle includes a left taper angle and a right taper angle.
  • the asymmetric bidirectional tapered thread 1 has a left taper 95 that is smaller than the right taper 96, and the left taper 95 corresponds to the left taper angle, that is, the first taper angle ⁇ 1, preferably, 0° ⁇ first cone
  • the angle ⁇ 1 ⁇ 53°, preferably, the first taper angle ⁇ 1 takes a value of 2° to 40°
  • the right taper 96 corresponds to the right taper angle, that is, the second taper angle ⁇ 2, preferably 0° ⁇ 2nd
  • the taper angle ⁇ 2 ⁇ 53°, preferably, the second taper angle ⁇ 2 takes a value of 2° to 40°
  • the specific special field ie, does not require self-locking and/or self-positioning, requires weak and/or axial bearing capacity.
  • a high connection application field is required, preferably 53° ⁇ second taper angle ⁇ 2 ⁇ 180°, preferably the second taper angle ⁇ 2 is 53° to 90°.
  • the external thread 9 is disposed on the outer surface of the columnar base 3, wherein the columnar body 3 has a screw body 31, and the outer surface of the screw body 31 has a spirally-shaped conical body 7 on the outer surface of the screw body 31.
  • the truncated cone body 7 comprises an asymmetric bidirectional truncated cone body 71, which is a special bidirectional conical geometry in the form of a dumbbell-like shape 94, which may be solid or Hollow, including cylinders, cones, tubes and other workpieces and objects that require external threads on their outer surfaces.
  • the dumbbell-shaped 94 asymmetric bidirectional truncated cone body 71 is characterized in that the upper top surface of the two truncated cone bodies having the same lower bottom surface and the same upper top surface but different cone heights are symmetric and oppositely joined. And the lower bottom surface is at both ends of the bidirectional truncated cone body 71 and forms the asymmetric bidirectional taper thread 1 respectively, including respectively engaging the lower bottom surface of the adjacent bidirectional truncated cone body 71 and/or respectively and adjacent to the bidirectional cone.
  • the lower bottom surface of the table body 71 is joined to each other, and the outer surface of the truncated cone body 7 has an asymmetric bidirectional truncated cone conical surface 72.
  • the external thread 9 includes a truncated cone body first spiral conical surface 721 and a truncated cone body.
  • the taper of the side truncated cone is a special bidirectional tapered geometry of the dumbbell-like shape 94.
  • the asymmetric bidirectional truncated cone 71 comprises a bidirectional truncated conical surface 72, and the left conical surface is the first spiral of the truncated cone.
  • Clamped conical surface 721 between the two prime lines The first taper angle ⁇ 1, the first spiral conical surface 721 of the truncated cone body forms a left side taper 95 and has a rightward distribution 98, and the right conical surface thereof is a truncated cone body and a second spiral conical surface 722.
  • the plain line is the intersection of the conical surface and the plane passing through the conical axis 01.
  • the bifurcated conical body 71 has a truncated cone first spiral conical surface 721 and a truncated cone second spiral conical surface.
  • the shape formed by the 722 is a rotation of a right-angled side of the right-angled trapezoidal body which is symmetrically and oppositely joined to the upper base of the two right-angled trapezoids which are identical to the lower base of the columnar parent body 3 and have the same lower base side but different right-angled sides.
  • the center circumferentially rotates at a uniform speed and the right-angled trapezoidal body simultaneously moves axially at a constant speed along the central axis of the columnar parent body 3, and the spiral outer side surface formed by the two oblique sides of the right-angled trapezoidal combined body has the same shape, and the right-angled trapezoidal combined body Means the bottom edge And with the same base but different two cathetus angle trapezoidal faces and symmetrically joined on the base and the lower base are right angle trapezoidal geometry in particular binding the two ends thereof.
  • the internal thread 6 is disposed on the inner surface of the cylindrical body 2, wherein the cylindrical body 2 includes a nut body 21 and a nut body 22.
  • the inner surface of the nut body 21 and the nut body 22 are a helically-distributed tapered bore 4, the tapered bore 4 comprising an asymmetric bi-directional tapered bore 41, the asymmetric bi-directional tapered bore 41 being a special bi-directional tapered geometry of the dumbbell-like shape 94.
  • the cylindrical precursor 2 includes a workpiece and an object such as a cylindrical body and/or a non-cylindrical body which are required to machine internal threads on the inner surface thereof.
  • the dumbbell-shaped 94 asymmetric bidirectional tapered hole 41 is characterized in that the top surface of the two tapered holes having the same lower bottom surface and the same upper top surface but different cone heights are symmetrically and oppositely joined. And the lower bottom surface is at both ends of the bidirectional tapered hole 41 and forms the asymmetric bidirectional tapered thread 1 including respectively engaging the lower bottom surface of the adjacent bidirectional tapered hole 41 and/or respectively and adjacent to the adjacent bidirectional taper
  • the lower bottom surface of the hole 41 is joined to each other, and the tapered hole 4 includes an asymmetric bidirectional tapered hole conical surface 42, the internal thread 6 including a conical hole first spiral conical surface 421 and a conical hole second spiral
  • the conical surface 422 and the inner spiral 5, in the section passing through the thread axis 02, the complete single-section asymmetric bidirectional tapered internal thread 6 is large at the middle and the tapered end of the tapered hole is smaller than the right tapered hole.
  • the bidirectional tapered bore 41 comprising a bidirectional tapered bore conical surface 42 having a conical surface on the left side, ie two of the conical bore first conical conical surface 421
  • the angle formed by the plain line is the first taper angle ⁇ 1
  • the tapered spiral first conical surface 421 The left side taper 95 is in the right direction distribution 98, and the right conical surface, that is, the conical hole, the two spiral lines of the second spiral conical surface 422 form an angle formed by the second cone angle ⁇ 2, and the conical hole second spiral
  • the conical surface 422 forms a right taper 96 and has a leftward distribution 97, the first taper angle ⁇ 1 being opposite to the taper direction corresponding to the second taper angle ⁇ 2, the plain line being the conical surface and passing through the conical axis 01 a plane intersection line, the tapered spiral conical surface 421 of the bidirectional tapered hole 41 and the second spiral conical surface 4
  • the central axis of the mother body 2 is axially moved at a constant speed, and the outer surface of the spiral formed by the two oblique sides of the right-angled trapezoidal combination has the same shape.
  • the right-angled trapezoidal combination means that the lower bottom edge is the same and the upper bottom edge is the same but a right angle.
  • Two different right-angled trapezoidal uppers Symmetrical and opposed lower base and engaged respectively in the right angle trapezoidal geometry specific binding both ends of the body.
  • the embodiment adopts a bolt and double nut connecting structure.
  • the double nut includes a nut body 21 and a nut body 22 .
  • the nut body 21 is located on the left side of the workpiece 130 to be fastened, and the nut body 22 is located on the workpiece 130 to be fastened.
  • On the right side when the bolt and the double nut are in operation, the relationship between the workpiece and the workpiece 130 to be fastened is a rigid connection, and the rigid connection means that the nut end surface bearing surface and the workpiece 130 bearing surface are mutually supporting surfaces, including the locking bearing surface. 111 and the locking bearing surface 112, the workpiece 130 is referred to as a connected object including the workpiece 130.
  • the threaded working bearing surface of the present embodiment is different, including a tapered threaded bearing surface 121 and a tapered threaded bearing surface 122, when the cylindrical body 2 is located on the left side of the workpiece 130 to be fastened, that is, the left side of the workpiece 130 being fastened
  • the right end surface of the end surface and the cylindrical body 2 that is, the left nut body 21 is the left nut body 21 and the locking support surface 111 of the workpiece 130 to be fastened
  • the left nut body 21 and the columnar body 3 that is, the screw body 31
  • the left spiral conical surface of the bidirectional tapered thread 1 of the bolt is a threaded working support surface, that is, the tapered hole first spiral conical surface 421 and the truncated cone first spiral conical surface 721 is a tapered threaded bearing surface 122 and tapered
  • the first spiral conical surface 421 of the shaped hole and the first spiral conical surface 721 of the truncated cone body are mutually supporting surfaces,
  • the bolt and the nut of the bidirectional taper thread are connected by the screw connection of the bidirectional tapered hole 41 and the bidirectional truncated cone body 71 during the transmission connection, and are bidirectionally supported.
  • the bidirectional truncated cone There must be a play 101 between the body 71 and the bidirectional tapered hole 41. If there is oil lubrication between the internal thread 6 and the external thread 9, the oil bearing film will be easily formed, and the play 101 is favorable for bearing the formation of the oil film.
  • the tapered threaded connecting pair 10 is equivalent to a set of sliding bearing pairs consisting of one or several pairs of sliding bearings, that is, each of the two-way tapered internal threads 6 is bidirectionally contained with a corresponding one-way tapered external thread 9
  • a pair of sliding bearings, the number of sliding bearings is adjusted according to the application conditions, that is, the bidirectional tapered internal thread 6 and the bidirectional tapered external thread 9 are effectively bidirectionally engaged, that is, the effective two-way contact is accommodated and the number of contained threads is divided, according to the application Conditional design, through the tapered hole 4 two-way containment of the truncated cone body 7 and radial, axial, angular, circumferential and other multi-directional positioning, constitute a special synthesis of cone and thread pair, to ensure the taper thread technology especially It is the transmission connection accuracy, efficiency and reliability of the bolt-and-nut connection structure of the bidirectional tapered thread.
  • the technical performance is achieved by the screw connection of the bidirectional tapered hole 41 and the bidirectional truncated cone 71, that is, the first spiral cone of the truncated cone body.
  • the surface 721 and the tapered first spiral conical surface 421 are sized until the interference and/or the second helical conical surface 722 of the truncated cone and the second helical conical surface 422 of the tapered bore are sized until the interference is achieved.
  • the bearing is carried in one direction and/or the two directions are simultaneously carried respectively, that is, the bidirectional truncated cone body 71 and the bidirectional tapered hole 41 are guided by the spiral line and the inner and outer diameters of the outer cone are centered until the tapered hole
  • the first spiral conical surface 421 is engaged with the truncated cone first spiral conical surface 721 until the interference contact and/or the conical aperture second helical conical surface 422 is converged with the truncated cone second helical conical surface 722 until Surround contact, thus achieving technical performance such as mechanical connection, locking, anti-loose, load bearing, fatigue and sealing.
  • the bolt and the nut of the bidirectional tapered thread in the embodiment have the transmission precision, the transmission efficiency, the bearing capacity, the locking force of the self-locking, the anti-loose ability, the sealing performance, the reusability, etc.
  • the technical performance and the first spiral conical surface 721 of the truncated cone body and the left taper 95 formed by the same are the first taper angle ⁇ 1 and the truncated cone second conical surface 722 and the right taper 96 formed by the second cone
  • the angle ⁇ 2 and the tapered first spiral conical surface 421 and the left taper 95 formed therein are the first taper angle ⁇ 1 and the tapered second conical surface 422 and the right taper 96 formed by the second cone
  • the size of the angle ⁇ 2 is related.
  • the material friction coefficient, processing quality and application conditions of the columnar matrix 3 and the cylindrical matrix 2 also have a certain influence on the cone fit.
  • the right-angled trapezoidal combined body rotates at a constant speed, and the right-angled trapezoidal joint moves axially at the same distance as the lower bottom edge and the upper bottom edge is the same but the right angle side is different.
  • the length of the sum of the right-angled sides of the two right-angled trapezoids is at least one time.
  • the structure ensures that the first spiral conical surface 721 of the truncated cone body and the second spiral conical surface 722 of the truncated cone body and the first spiral conical surface 421 of the tapered hole and the second spiral conical surface 422 of the tapered hole have sufficient length
  • the bi-directional truncated cone conical surface 72 cooperates with the bi-directional conical bore conical surface 42 to have sufficient effective contact area and strength and the efficiency required for the helical motion.
  • the right angle trapezoidal combination body is rotated one time at a constant speed, and the right angle trapezoidal coupling body is axially moved by a distance equal to having the lower bottom edge and the upper bottom edge being the same but the right angle side is different.
  • the length of the sum of the right-angled sides of the two right-angled trapezoids is different.
  • the structure ensures that the first spiral conical surface 721 of the truncated cone body and the second spiral conical surface 722 of the truncated cone body and the first spiral conical surface 421 of the tapered hole and the second spiral conical surface 422 of the tapered hole have sufficient The length, thereby ensuring that the bi-directional truncated cone conical surface 72 cooperates with the bi-directional conical bore conical surface 42 has sufficient effective contact area and strength and the efficiency required for helical motion.
  • the truncated cone first spiral conical surface 721 and the truncated cone second spiral conical surface 722 are both continuous spiral surfaces or non-continuous spiral surfaces;
  • the tapered first spiral conical surface 421 and the tapered second conical conical surface 422 are both continuous spiral faces or non-continuous spiral faces.
  • one end of the columnar base 3 is provided with a head larger than the outer diameter of the columnar parent body 3 and/or one or both ends of the columnar base body 3 are provided with less than
  • the cylindrical female body 3 has a tapered threaded external thread 9 and a small-diameter head.
  • the connecting hole is a threaded hole provided in the nut body 21. That is, the columnar parent body 3 is connected to the head as a bolt, and the head and/or the heads at both ends are smaller than the bidirectional tapered external thread 9 and/or the two ends of the thread have a bidirectional tapered external thread 9 at both ends.
  • the stud and the connecting hole are provided in the nut body 21.
  • the tapered threaded connection pair 10 of the bolt-and-nut connection structure of the two-way taper thread has the advantages of reasonable design and simple structure, and the taper shape formed by the inner and outer cones is sizing to the interference fit. It realizes fastening and connecting functions, convenient operation, large locking force, large bearing capacity, good anti-loose performance, high transmission efficiency and precision, good mechanical sealing effect, good stability, and can prevent looseness during connection. Self-locking and self-positioning features.
  • the structure, the principle, and the implementation steps of the embodiment are similar to those of the first embodiment.
  • the embodiment adopts a bolt and a single nut connection structure and the bolt body has a hexagonal head larger than the screw body 31.
  • the bolt-shaped hex head is located on the left side
  • the cylindrical body 2, that is, the nut body 21, that is, the single nut is located on the right side of the workpiece 130 to be fastened
  • the bolt and the single-nut connection structure of the present embodiment are operated.
  • the relationship between the fastening workpieces 130 is also a rigid connection.
  • the rigid connection means that the end faces of the end faces of the nut body 21 and the end faces of the workpiece 130 are mutually supporting surfaces, and the bearing faces are locking bearing faces 111.
  • the workpiece 130 refers to a connected object including the workpiece 130.
  • the threaded working support surface of the embodiment is a tapered threaded bearing surface 122, that is, the cylindrical body 2, that is, the nut body 21, that is, the single nut is located on the right side of the workpiece 130 to be fastened, and the workpiece 130 is operated when the bolt and the single nut are connected.
  • the right end surface and the left end surface of the nut body 21 are the nut body 21 and the locking support surface 111 of the workpiece 130 to be fastened, and the nut body 21 and the columnar body 3, that is, the screw body 31, that is, the right side of the bidirectional tapered thread 1 of the bolt
  • the spiral conical surface is a threaded working support surface, that is, the conical hole second spiral conical surface 422 and the truncated cone second conical conical surface 722 is a tapered threaded bearing surface 122 and the tapered hole second spiral conical surface 422 and
  • the second spiral conical surface 722 of the truncated cone body is a support surface.
  • the structure, principle, and implementation steps of the present embodiment are similar to those of the first embodiment.
  • the difference is that the positional relationship between the double nut and the workpiece 130 to be fastened is different, and the double nut includes the nut body 21 and The nut body 22 and the bolt body have a hexagonal head larger than the screw body 31.
  • the bolt hex head is on the left side, the nut body 21 and the nut body 22 are located on the right side of the workpiece 130 to be fastened, and the bolt and the double nut connection structure work.
  • the relationship between the nut body 21, the nut body 22 and the workpiece 130 to be fastened is a non-rigid connection, and the non-rigid connection means that the opposite side end faces of the two nuts, that is, the nut body 21 and the nut body 22 are mutually supporting surfaces.
  • the bearing surface includes a locking bearing surface 111 and a locking bearing surface 112, and is mainly applied to non-rigid materials or transmission members such as non-rigid connecting workpieces 130 or applications to be satisfied by double nut mounting.
  • the workpiece 130 is referred to as a connected object including the workpiece 130.
  • the thread working support surface of the embodiment is different, and includes a tapered threaded bearing surface 121 and a tapered threaded bearing surface 122.
  • the cylindrical body 2 includes a left side nut body 21 and a right side nut body 22, and the left side nut body 21
  • the right end surface, that is, the locking bearing surface 111 is in direct contact with the left end surface of the right nut body 22, that is, the locking bearing surface 112, and is a locking bearing surface.
  • the right end surface of the left nut body 21 is a locking support
  • the left side nut body 21 and the columnar body 3, that is, the screw body 31, that is, the left side spiral conical surface of the bidirectional tapered thread 1 of the bolt are the threaded working support surface, that is, the tapered hole first spiral conical surface 421 and the cone
  • the first spiral conical surface 721 of the table body is a tapered screw bearing surface 122 and the first spiral conical surface 421 of the tapered hole and the first spiral conical surface 721 of the truncated cone body are mutually supporting surfaces, when the right nut body 22 is When the left end surface is the locking support surface 112, the right side nut body 22 and the columnar body 3, that is, the screw body 31, that is, the right side spiral conical surface of the bidirectional tapered thread 1 of the bolt is the threaded working support surface, that is, the tapered hole second.
  • the spiral conical surface 422 and the truncated cone second spiral conical surface 722 are Shaped bearing surface 121 and the second thread helical spiral conical surface of the tapered hole of the second conical surface 422 and the truncated cone body 722 mutually support surface.
  • the internal thread 6 and the external thread 9 are effectively entangled together, and the cylindrical body 2 located on the outer side, that is, the nut body 22 not adjacent to the workpiece 130 to be fastened, can be left as it is and/or removed according to the application conditions, leaving only one Nuts only (such as when the equipment is required to be lightweight or do not require double nuts to ensure the reliability of the connection technology), the removed nut body 22 is not used as a coupling nut but only as a mounting process nut, which is inside the mounting nut
  • the threads can also be made of one-way tapered threads and other threads that can be screwed with the tapered threads 1, ie, non-tapered threads including triangular threads, trapezoidal threads, serrated threads, etc.
  • the nut body 22 ensures the reliability of the connection technology.
  • the tapered thread connection pair 10 is a closed loop fastening technology system, that is, the internal thread 6 of the tapered threaded connection pair 10 After the threads 9 are effectively held together, the tapered threaded connection 10 will be self-contained independently of the technical compensation of the third party to ensure the technical effectiveness of the connection technology system, ie even without the support of other objects including tapered threads
  • the gap between the connecting pair 10 and the workpiece 130 to be fastened does not affect the effectiveness of the tapered threaded coupling 10, which will greatly reduce the weight of the equipment, remove the invalid load, and improve the payload capacity and braking performance of the equipment.
  • the nut body 21 and the nut body 22 are both located on the left side of the workpiece 130 to be fastened, and the structure, principle and implementation steps thereof are similar to the embodiment.
  • the structure, the principle and the implementation steps of the embodiment are similar to those of the first embodiment and the third embodiment.
  • the difference is that the embodiment is based on the third embodiment of the nut body 21 and the nut body 22.
  • a spacer such as the spacer 132 is added between the right end surface of the left nut body 21 and the left end surface of the right nut body 22, which are in indirect contact with each other via the spacer 132, thereby indirectly interlocking the bearing surfaces. That is, the relationship between the right end surface of the left nut body 21 and the left end surface of the right nut body 22 is changed from the original direct locking bearing surface to the indirect mutual locking bearing surface.
  • taper thread 1 the cylindrical base body 2, the nut body 21, the nut body 22, the columnar base body 3, the screw body 31, the tapered hole 4, the bidirectional tapered hole 41, and the bidirectional tapered hole conical surface are used more frequently herein. 42.

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Abstract

一种哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构，内螺纹(6)是筒状母体(2)内表面双向锥形孔(41)、外螺纹(9)是柱状母体(3)外表面双向圆锥台体(71)，其完整单元体螺纹均是左侧锥度(95)小于右侧锥度(96)的呈螺旋状中间小两端大的类哑铃状(94)双向锥形体，性能主要取决相互配合螺纹体的圆锥面及锥度大小，内、外螺纹通过锥孔包容锥体由双向锥形孔(41)与双向圆锥台体(71)组成一节节圆锥副形成螺纹副(10)直至内、外圆锥呈螺旋状圆锥面定径配合或定径过盈实现螺纹连接功能。

Description

哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构 技术领域
本发明属于设备通用技术领域，尤其是涉及一种哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构即类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与螺母连接结构(以下简称“双向锥形螺纹的螺栓与螺母”)。
背景技术
螺纹的发明，对人类社会进步产生深刻影响。螺纹是最基础工业技术之一，她不是具体产品，是产业关键共性技术，其技术性能必须要有具体产品作为应用载体来体现，各行各业应用广泛。现有螺纹技术，标准化水平高，技术理论成熟，实践应用久远，用之紧固，则是紧固螺纹；用之密封，则为密封螺纹；用之传动，则成传动螺纹。根据国家标准的螺纹术语：“螺纹”是指在圆柱或圆锥表面上，具有相同牙型、沿螺旋线连续凸起的牙体；“牙体”是指相邻牙侧间的材料实体。这也是全球共识的螺纹定义。
[根据细则26改正28.05.2019]　
现代螺纹始于1841年英国惠氏螺纹。按照现代螺纹技术理论，螺纹自锁基本条件是：当量摩擦角不得小于螺旋升角。这是现代螺纹基于其技术原理——“斜面原理”对螺纹技术的一种认识，成为现代螺纹技术的重要理论依据。最早对斜面原理进行理论解释的是斯蒂文，他研究发现斜面上物体平衡的条件与力合成的平行四边形定律，1586年他提出了著名的斜面定律：放在斜面上的一个物体所受的沿斜面方向的重力与倾角的正弦成正比。所述的斜面，是指与水平面成倾斜的光滑平面，螺旋是“斜面”的变形，螺纹就像包裹在圆柱体外的斜面，斜面越平缓，机械利益越大(见图7)(杨静珊、王绣雅，《螺丝钉的原理探讨》，《高斯算术研究》)。
[根据细则26改正28.05.2019]　
现代螺纹的“斜面原理”，是基于斜面定律建立起来的斜面滑块模型(见图8)，人们认为，在静载荷和温度变化不大条件下，当螺纹升角小于等于当量摩擦角，螺纹副具备自锁条件。螺纹升角(见图9)又称为螺纹导程角，就是在中径圆柱上螺旋线的切线与垂直于螺纹轴线的平面间的夹角，该角度影响螺纹自锁 和防松。当量摩擦角就是把不同的摩擦形式最终转化成最普通的斜面滑块形式时对应的摩擦角。通俗讲，在斜面滑块模型中，当斜面倾斜到一定角度，滑块此时的摩擦力恰好等于重力沿着斜面的分量，此时物体刚好处于受力平衡状态，此时的斜面倾斜角称为当量摩擦角。
美国工程师于上世纪中叶发明了楔形螺纹，其技术原理仍旧遵循“斜面原理”。楔形螺纹的发明，受到“木楔子”启发。具体说，楔形螺纹的结构是在三角形螺纹(俗称普通螺纹)内螺纹(即螺母螺纹)的牙底处有一个与螺纹轴线成25°～30°夹角的楔形斜面，工程实际都取30°楔形斜面。一直以来，人们都是从螺纹牙型角这个技术层面和技术方向去研究和解决螺纹防松脱等问题，楔形螺纹技术也不例外，是斜楔技术的具体运用。
但是，现有螺纹存在连接强度低、自定位能力弱、自锁性差、承力值小、稳定性差、兼容性差、重复使用性差、高温低温等问题，典型的是应用现代螺纹技术的螺栓或螺母普遍存在着容易松动缺陷，随着设备频繁振动或震动，引起螺栓与螺母松动甚至脱落，严重的容易发生安全事故。
发明概述
技术问题
问题的解决方案
技术解决方案
任何技术理论，都有理论假设背景，螺纹也不例外。随着科技进步，对连接破坏已非单纯线性载荷更非静态更非室温环境，存在线性载荷非线性载荷甚至是二者叠加并由此产生更复杂破坏载荷情况，应用工况复杂，基于这样认识，本发明的目的是针对上述问题，提供一种设计合理、结构简单，具有良好连接性能、锁紧性能的双向锥形螺纹的螺栓与螺母连接结构。
为达到上述目的，本发明采用了下列技术方案：本类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与螺母连接结构，是由非对称双向锥形螺纹内螺纹与非对称双向锥形螺纹外螺纹组成螺纹连接副使用，是一种特殊的合成了圆锥副与螺旋运动技术特点的螺纹副技术，所述的双向锥形螺纹，是一种合成了双向锥形体与螺旋结构技术特点的螺纹技术，所述的双向锥形体是由两 个单锥形体组成，是由左侧与右侧锥度方向相向且左侧锥形体锥度小于右侧锥形体锥度两个单锥形体双向组成，所述的双向锥形体呈螺旋状分布于柱状母体的外表面形成外螺纹和/或上述的双向锥形体呈螺旋状分布于筒状母体的内表面形成内螺纹，无论内螺纹外螺纹，其完整单元体螺纹是一种中间小两端大且左侧锥度小于右侧锥度的呈类哑铃状特殊双向锥形几何体。
本双向锥形螺纹的螺栓与螺母，所述的类哑铃状非对称双向锥形螺纹定义，可以表达为：“在圆柱或圆锥表面上，具有规定左侧锥度和右侧锥度且左侧锥度与右侧锥度的方向相向且左侧锥度小于右侧锥度的非对称双向锥形孔(或非对称双向圆锥台体)、沿着螺旋线连续和/或不连续分布的呈螺旋状且呈中间小两端大的类哑铃状特殊双向锥形几何体。”因制造等方面原因，非对称双向锥形螺纹的螺头、螺尾可能是不完整的双向锥形几何体。与现代螺纹技术不同，螺纹技术已由原先现代螺纹内螺纹外螺纹啮合关系转变为本双向锥形螺纹内螺纹外螺纹抱合关系。
本双向锥形螺纹的螺栓与螺母，包括呈螺旋状分布于柱状母体外表面的双向圆锥台体和呈螺旋状分布于筒状母体内表面的双向锥形孔，即包括相互螺纹配合的外螺纹与内螺纹，内螺纹分布的是呈螺旋状的双向锥形孔并以“非实体空间”形态存在、外螺纹分布的是呈螺旋状的双向圆锥台体并以“材料实体”形态存在，所述的非实体空间是指能够容纳上述材料实体的空间环境，内螺纹是包容件，外螺纹是被包容件：内螺纹与外螺纹是一节一节双向锥形几何体旋合套接在一起抱合直至一侧双向承载或左侧右侧同时双向承载或直至定径过盈配合，两侧是否同时双向承载与应用领域实际工况有关，即双向锥形孔一节一节包容抱合双向圆锥台体，即内螺纹是一节一节抱合对应外螺纹。
所述的螺纹连接副是由呈螺旋状的外锥面与呈螺旋状的内锥面相互配合构成圆锥副形成螺纹副，所述的双向锥形螺纹外圆锥体的外锥面与内圆锥体的内锥面均为双向圆锥面，当所述的双向锥形螺纹之间组成螺纹连接副，是以内圆锥面与外圆锥面的结合面为支承面，即以圆锥面为支承面，实现连接技术性能，螺纹副自锁性、自定位性、重复使用性和抗疲劳性等能力主要取决于构成本双向锥形螺纹的螺栓与螺母连接结构圆锥副的圆锥面及其锥度大小即内、外螺纹的 圆锥面及其锥度大小，是一种非牙型螺纹。
与现有螺纹斜面原理所表现的分布于斜面上的单向力以及内、外螺纹是内牙体与外牙体的啮合关系不同，本双向锥形螺纹的螺栓与螺母，螺纹体即双向锥形体无论分布于左侧或右侧任何一侧单锥形体通过圆锥轴线截面是由圆锥体两条素线双向组成即呈双向状态，所述的素线是圆锥表面与通过圆锥轴线的平面的交线，本双向锥形螺纹的螺栓与螺母连接结构的圆锥原理所表现的是轴心力与反轴心力，二者均是由双向力合成，轴心力与对应的反轴心力对顶，内螺纹与外螺纹是抱合关系，即组成螺纹副是通过内螺纹抱住外螺纹即一节节锥孔(内圆锥体)抱合对应的一节节锥体(外圆锥体)直至抱合定径配合实现自定位或直至定径过盈接触实现自锁，即通过锥形孔与圆锥台体径向抱合在一起实现内圆锥体与外圆锥体自锁紧或自定位进而实现螺纹副的自锁紧或自定位，而非传统螺纹的内螺纹与外螺纹组成螺纹连接副是通过彼此牙体与牙体之间相互抵靠实现螺纹连接性能。
内螺纹与外螺纹的抱合过程达到一定条件会有一种自锁力，所述的自锁力是由内圆锥轴心力与外圆锥反轴心力之间所产生压强生成，即当内圆锥与外圆锥组成圆锥副，内圆锥体的内圆锥面抱合外圆锥体的外圆锥面，内圆锥面与外圆锥面紧密接触。所述的内圆锥轴心力与外圆锥反轴心力是本发明双向锥形螺纹技术即圆锥副技术所独有的力的概念。
内圆锥体以类似轴套的形态存在，在外来载荷作用下，内圆锥体生成指向或者说压向圆锥轴线的轴心力，所述的轴心力是由一对以圆锥轴线为中心呈镜像分布且分别垂直于圆锥体两条素线的向心力双向合成，即轴心力通过圆锥轴线截面是由以圆锥轴线为中心呈镜像双向分布于圆锥轴线两侧且分别垂直于圆锥体两条素线且指向或者说压向圆锥轴线共同点的两条向心力组成且当上述的圆锥体与螺旋结构合成为螺纹并应用于螺纹副则上述的轴心力通过螺纹轴线截面是由以螺纹轴线为中心呈镜像和/或近似镜像双向分布于螺纹轴线两侧且分别垂直于圆锥体两条素线且指向或者说压向螺纹轴线共同点和/或近似共同点的两条向心力组成，所述的轴心力是以轴向并周向的方式密密麻麻地分布于圆锥轴线和/或螺纹轴线，所述的轴心力对应的有一个轴心力角，组成所述的轴心力的两条 向心力的夹角构成上述的轴心力角，所述的轴心力角大小取决于圆锥体的锥度大小即锥角大小。
外圆锥体以类似轴的形态存在，具备较强吸收外来各种载荷能力，外圆锥体生成与内圆锥体每一轴心力对顶的反轴心力，所述的反轴心力是由一对以圆锥轴线为中心呈镜像分布且分别垂直于圆锥体两条素线的反向心力双向合成，即反轴心力通过圆锥轴线截面是由以圆锥轴线为中心呈镜像双向分布于圆锥轴线两侧且分别垂直于圆锥体两条素线且由圆锥轴线共同点指向或者说压向内圆锥面的两条反向心力组成且当上述的圆锥体与螺旋结构合成为螺纹并应用于螺纹副则上述的反轴心力通过螺纹轴线截面是由以螺纹轴线为中心呈镜像和/或近似镜像双向分布于螺纹轴线两侧且分别垂直于圆锥体两条素线且由螺纹轴线共同点和/或近似共同点指向或者说压向内螺纹圆锥面的两条反向心力组成，所述的反轴心力是以轴向并周向的方式密密麻麻地分布于圆锥轴线和/或螺纹轴线，所述的反轴心力对应的有一个反轴心力角，组成所述的反轴心力的两条反向心力的夹角构成上述的反轴心力角，所述的反轴心力角大小取决于圆锥体的锥度大小即锥角大小。
轴心力与反轴心力在圆锥副的内外圆锥有效接触时开始生成，即圆锥副的内圆锥体与外圆锥体的有效接触过程始终存在一对对应且相对顶的轴心力与反轴心力，所述的轴心力与反轴心力均是以圆锥轴线和/或螺纹轴线为中心且呈镜像双向分布的双向力而非单向力，所述的圆锥轴线与螺纹轴线是重合轴线即是同一轴线和/或近似同一轴线，反轴心力与轴心力是反向共线且当上述的圆锥体与螺旋结构合成为螺纹并组成螺纹副是反向共线和/或近似反向共线，通过内圆锥与外圆锥的抱合直至过盈则轴心力与反轴心力由此在内圆锥面与外圆锥面的接触面生成压强并密密麻麻地轴向并周向均匀分布在内外圆锥表面的接触面，当内圆锥与外圆锥的抱合运动一直进行直至圆锥副达到过盈配合所生成压强将内圆锥与外圆锥结合在一起，即上述的压强已能做到内圆锥体抱合外圆锥体形成类似整体构造体并在其促成的外力消失后并不会因为上述的类似整体构造体体位的方向任意变化而在重力作用下导致内外圆锥体相互脱离，圆锥副产生自锁紧即螺纹副产生自锁紧，这种自锁紧性对于除了重力之外的可能导致内外圆锥体 彼此相互脱离的其他外来载荷也有一定限度的抵抗作用，圆锥副还具有内圆锥与外圆锥相互配合的自定位性，但并非任意轴心力角和/或反轴心力角都能让圆锥副产生自锁紧和自定位。
当轴心力角和/或反轴心力角小于180°且大于127°，圆锥副具备自锁性，轴心力角和/或反轴心力角无限接近于180°时，圆锥副的自锁性最佳，其轴向承载能力最弱，轴心力角和/或反轴心力角等于和或小于127°且大于0°，则圆锥副处于自锁性弱和/或不具自锁性区间，轴心力角和/或反轴心力角趋向于向无限接近于0°方向变化，则圆锥副的自锁性呈衰减趋势方向变化直至完全不具自锁紧能力，轴向承载能力呈增强趋势方向变化直至轴向承载能力最强。
当轴心力角和/或反轴心力角小于180°且大于127°，圆锥副处于强自定位状态，容易达到内外圆锥体强自定位，轴心力角和/或反轴心力角无限接近于180°时，圆锥副的内外圆锥体自定位能力最强，轴心力角和/或反轴心力角等于和或小于127°且大于0°，圆锥副处于弱自定位状态，轴心力角和/或反轴心力角趋向于向无限接近于0°方向变化，则圆锥副的内外圆锥体相互自定位能力呈衰减趋势方向变化直至接近完全不具自定位能力。
本双向锥形螺纹连接副，较之申请人此前发明的单锥形体的单向锥形螺纹只能圆锥面单侧承载的不可逆性单侧双向包容的包容与被包容关系，双锥形体的双向锥形螺纹的可逆性左右两侧双向包容，可以做到圆锥面左侧承载和/或圆锥面右侧承载和/或左侧圆锥面右侧圆锥面分别承载和/或左侧圆锥面右侧圆锥面双向同时承载，更限制锥形孔与圆锥台体之间的无序自由度，螺旋运动又让双向锥形螺纹的螺栓与螺母连接结构获取了必须的有序自由度，有效合成了圆锥副与螺纹副技术特点形成全新螺纹技术。
本双向锥形螺纹的螺栓与螺母在使用时双向锥形螺纹外螺纹的双向圆锥台体圆锥面与双向锥形螺纹内螺纹的双向锥形孔圆锥面相互配合。
本双向锥形螺纹的螺栓与螺母，其圆锥副的双向锥形体即圆锥台体和/或锥形孔并非任意锥度或者说任意锥角均可实现螺纹连接副的自锁紧和/或自定位，所述的双向锥形体的内、外圆锥体必须达到一定锥度或者说一定锥角，所述的双向锥形螺纹的螺栓与螺母连接结构才具备自锁性和自定位性，所述的锥度包括 内、外螺纹体的左侧锥度和右侧锥度，所述的锥角包括内、外螺纹体的左侧锥角和右侧锥角，组成本类哑铃状非对称双向锥形螺纹的螺栓与螺母连接结构的非对称双向锥形螺纹内螺纹和外螺纹是左侧锥度小于右侧锥度，所述的左侧锥度对应左侧锥角即第一锥角α1，优选地，0°＜第一锥角α1＜53°，优选地，第一锥角α1取值为2°～40°；所述的右侧锥度对应右侧锥角即第二锥角α2，优选地，0°＜第二锥角α2＜53°，优选地，第二锥角α2取值为2°～40°，个别特殊领域，优选地，53°≤第二锥角α2＜180°，优选地，第二锥角α2取值为53°～90°。
上述的个别特殊领域，是指自锁性要求低甚至不需要自锁性和/或自定位性要求弱和/或轴向承载力要求高和/或必须设置防抱死措施的传动连接等等螺纹连接应用领域。
本双向锥形螺纹的螺栓与螺母，所述的外螺纹设置在柱状母体外表面形成螺栓，其特征是，所述的柱状母体有螺杆体，所述的螺杆体外表面上有呈螺旋状分布的圆锥台体，所述的圆锥台体包括非对称双向圆锥台体，所述的柱状母体可以是实心或空心，包括圆柱体和/或非圆柱体等需要在其外表面加工螺纹的工件和物体，包括圆柱表面和圆锥表面等非圆柱面等外表面。
本双向锥形螺纹的螺栓与螺母，所述的非对称双向圆锥台体即外螺纹，其特征是，是由具有下底面相同且上顶面相同但锥高不同的两个圆锥台体的上顶面对称并相向相互接合呈螺旋状而成螺纹且下底面处于双向圆锥台体的两端且形成类哑铃状非对称双向锥形螺纹时包括分别与相邻双向圆锥台体的下底面相互接合和/或或将分别与相邻双向圆锥台体的下底面相互接合呈螺旋状而成螺纹，所述的外螺纹包括圆锥台体第一螺旋状圆锥面和圆锥台体第二螺旋状圆锥面和外螺旋线，在通过螺纹轴线的截面内，其完整单节非对称双向锥形外螺纹是中间小两端大且左侧圆锥台体锥度小于右侧圆锥台体锥度的呈类哑铃状的特殊双向锥形几何体，所述的非对称双向圆锥台体包括双向圆锥台体圆锥面，其左侧圆锥面即圆锥台体第一螺旋状圆锥面的两条素线间的夹角为第一锥角α1，圆锥台体第一螺旋状圆锥面形成左侧锥度且呈右向分布，其右侧圆锥面即圆锥台体第二螺旋状圆锥面的两条素线间的夹角为第二锥角α2，圆锥台体第二螺旋状圆锥面形成右侧锥度且呈左向分布，所述的第一锥角α1与第二锥角α2所对应锥度方 向相向，所述的素线是圆锥表面与通过圆锥轴线的平面的交线，所述的双向圆锥台体的圆锥台体第一螺旋状圆锥面和圆锥台体第二螺旋状圆锥面形成的形状与以重合于柱状母体中轴线具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿柱状母体中轴线匀速轴向移动而由直角梯形结合体两条斜边形成的回旋体的螺旋外侧面形状相同，所述的直角梯形结合体是指具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合且下底边分别处于直角梯形结合体两端的特殊几何体。
本双向锥形螺纹的螺栓与螺母，所述的内螺纹设置在筒状母体内表面形成螺母，其特征是，所述的筒状母体有螺母体，所述的螺母体内表面上有呈螺旋状分布的锥形孔，所述锥形孔包括非对称双向锥形孔，所述的筒状母体包括圆筒体和/或非圆筒体等需要在其内表面加工内螺纹的工件和物体，所述的内表面包括圆柱表面和圆锥表面等非圆柱表面等内表面几何形状。
本双向锥形螺纹的螺栓与螺母，所述的非对称双向锥形孔即内螺纹，其特征是，是由具有下底面相同且上顶面相同但锥高不同的两个锥形孔上顶面对称并相向相互接合呈螺旋状而成螺纹且下底面处于双向锥形孔的两端且形成类哑铃状非对称双向锥形螺纹时包括分别与相邻双向锥形孔的下底面相互接合和/或或将分别与相邻双向锥形孔的下底面相互接合呈螺旋状而成螺纹，所述的内螺纹包括锥形孔第一螺旋状圆锥面和锥形孔第二螺旋状圆锥面和内螺旋线，在通过螺纹轴线的截面内，其完整单节非对称双向锥形内螺纹是中间小两端大且左侧锥形孔锥度小于右侧锥形孔锥度的呈类哑铃状的特殊双向锥形几何体，所述的双向锥形孔包括双向锥形孔圆锥面，其左侧圆锥面即锥形孔第一螺旋状圆锥面的两条素线形成的夹角为第一锥角α1，锥形孔第一螺旋状圆锥面形成左侧锥度且呈右向分布，其右侧圆锥面即锥形孔第二螺旋状圆锥面的两条素线形成的夹角为第二锥角α2，锥形孔第二螺旋状圆锥面形成右侧锥度且呈左向分布，所述的第一锥角α1与第二锥角α2所对应锥度方向相向，所述的素线是圆锥表面与通过圆锥轴线的平面的交线，所述的双向锥形孔的锥形孔第一螺旋状圆锥面和锥形孔第二螺旋状圆锥面形成的形状与以重合于筒状母体中轴线具有下底边相同且 上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿筒状母体中轴线匀速轴向移动而由直角梯形结合体两条斜边形成的回旋体的螺旋外侧面形状相同，所述的直角梯形结合体是指具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合且下底边分别处于直角梯形结合体两端的特殊几何体。
本双向锥形螺纹的螺栓与螺母连接结构工作时，与工件之间的关系包括刚性连接和非刚性连接。所述的刚性连接是指螺母支承面与工件支承面互为支承面，包括单螺母和双螺母等结构形式，所述的非刚性连接是指两个螺母的相向侧面端面互为支承面和/或两个螺母的相向侧面端面之间有垫片则是间接互为支承面，主要应用于非刚性材料或传动件等非刚性连接工件或要通过双螺母安装满足需求等应用领域，所述的工件是指包括工件在内的被连接物体，所述的垫片是指包括垫片的间隔物。
本双向锥形螺纹的螺栓与螺母，采取螺栓与双螺母连接结构且与被紧固工件的关系是刚性连接时，螺纹工作支承面是不同的，当筒状母体位于被紧固工件左侧，即被紧固工件的左侧端面、筒状母体即左侧螺母体的右侧端面是左侧螺母体与被紧固工件的锁紧支承面时，左侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的左侧螺旋状圆锥面即锥形孔第一螺旋状圆锥面和圆锥台体第一螺旋状圆锥面是锥形螺纹支承面且锥形孔第一螺旋状圆锥面与圆锥台体第一螺旋状圆锥面互为支承面，当筒状母体位于被紧固工件右侧，即被紧固工件的右侧端面、筒状母体即右侧螺母体的左侧端面是右侧螺母体与被紧固工件的锁紧支承面时，右侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的右侧螺旋状圆锥面即锥形孔第二螺旋状圆锥面和圆锥台体第二螺旋状圆锥面是锥形螺纹支承面且锥形孔第二螺旋状圆锥面与圆锥台体第二螺旋状圆锥面互为支承面。
本双向锥形螺纹的螺栓与螺母，采取螺栓与单螺母连接结构且与被紧固工件关系是刚性连接时，当螺栓六角头部位于左侧，所述的筒状母体即螺母体即单螺母位于被紧固工件的右侧，螺栓与单螺母连接结构工作时，工件的右侧端面、螺母体的左侧端面是螺母体与被紧固工件的锁紧支承面，螺母体和柱状母体即 螺杆体即螺栓的双向锥形螺纹的右侧螺旋状圆锥面即锥形孔第二螺旋状圆锥面和圆锥台体第二螺旋状圆锥面是锥形螺纹支承面且锥形孔第二螺旋状圆锥面与圆锥台体第二螺旋状圆锥面互为支承面；当螺栓六角头部位于右侧，则所述的筒状母体即螺母体即单螺母位于被紧固工件的左侧，螺栓与单螺母连接结构工作时，工件的左侧端面、螺母体的右侧端面是螺母体与被紧固工件的锁紧支承面，螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的左侧螺旋状圆锥面即锥形孔第一螺旋状圆锥面和圆锥台体第一螺旋状圆锥面是锥形螺纹支承面且锥形孔第一螺旋状圆锥面与圆锥台体第一螺旋状圆锥面互为支承面。
本双向锥形螺纹的螺栓与螺母，采取螺栓与双螺母的连接结构且与被紧固工件的关系是非刚性连接时，螺纹工作支承面即锥形螺纹支承面是不同的，筒状母体包括左侧螺母体与右侧螺母体，左侧螺母体的右侧端面与右侧螺母体的左侧端面相向直接接触并互为锁紧支承面，当左侧螺母体的右侧端面是锁紧支承面时，左侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的左侧螺旋状圆锥面即锥形孔第一螺旋状圆锥面和圆锥台体第一螺旋状圆锥面是锥形螺纹支承面且锥形孔第一螺旋状圆锥面与圆锥台体第一螺旋状圆锥面互为支承面，当右侧螺母体的左侧端面是锁紧支承面时，右侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的右侧螺旋状圆锥面即锥形孔第二螺旋状圆锥面和圆锥台体第二螺旋状圆锥面是锥形螺纹支承面且锥形孔第二螺旋状圆锥面与圆锥台体第二螺旋状圆锥面互为支承面。
本双向锥形螺纹的螺栓与螺母，采取螺栓与双螺母的连接结构且与被紧固工件的关系是非刚性连接时，螺纹工作支承面即锥形螺纹支承面是不同的，筒状母体包括左侧螺母体与右侧螺母体且两个筒状母体即左侧螺母体与右侧螺母体之间有垫片之类间隔物，左侧螺母体的右侧端面与右侧螺母体的左侧端面经垫片而相向间接接触由此间接互为锁紧支承面，当筒状母体位于垫片左侧即垫片的左侧面、左侧螺母体的右侧端面是左侧螺母体的锁紧支承面时，左侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的左侧螺旋状圆锥面即锥形孔第一螺旋状圆锥面和圆锥台体第一螺旋状圆锥面是锥形螺纹支承面且锥形孔第一螺旋状圆锥面与圆锥台体第一螺旋状圆锥面互为支承面，当筒状母体位于垫片右侧 即垫片的右侧面、右侧螺母体的左侧端面是右侧螺母体的锁紧支承面时，右侧螺母体和柱状母体即螺杆体即螺栓的双向锥形螺纹的右侧螺旋状圆锥面即锥形孔第二螺旋状圆锥面和圆锥台体第二螺旋状圆锥面是锥形螺纹支承面且锥形孔第二螺旋状圆锥面与圆锥台体第二螺旋状圆锥面互为支承面。
本双向锥形螺纹的螺栓与螺母，采取螺栓与双螺母连接结构且与被紧固工件的关系是非刚性连接时，当位于内侧的筒状母体即与被紧固工件相邻的螺母体已经与柱状母体即螺杆体即螺栓有效结合在一起即组成锥形螺纹连接副的内螺纹与外螺纹有效抱合在一起，位于外侧的筒状母体即与被紧固工件并不相邻的螺母体可以根据应用工况需要保持原状和/或拆卸掉而只留一只螺母(譬如对装备轻量化有要求的或不需要双螺母来确保连接技术可靠性等应用领域)，被拆除螺母体不作为连接螺母使用而只是作为安装工艺螺母使用，所述的安装工艺螺母内螺纹除了是采用双向锥形螺纹制造，还可以是采用单向锥形螺纹以及可以与锥形螺纹拧合的其他螺纹即包括三角形螺纹、梯形螺纹、锯齿形螺纹等非锥形螺纹的螺纹制造的螺母体，确保连接技术可靠性前提，所述的锥形螺纹连接副是一种闭环紧固技术系统即锥形螺纹连接副的内螺纹与外螺纹实现有效抱合在一起后锥形螺纹连接副将自成独立技术系统而不依赖于第三者的技术补偿来确保连接技术系统的技术有效性即即便没有其他物件的支持包括锥形螺纹连接副与被紧固工件之间有间隙也不会影响锥形螺纹连接副的有效性，这将有利于大大减轻装备重量，去除无效载荷，提升装备的有效载荷能力、制动性能、节能减排等等技术需求，这是当本双向锥形螺纹的螺栓与螺母连接结构的锥形螺纹连接副与被紧固工件的关系无论是非刚性连接还是刚性连接时所独具的而其他螺纹技术不具备的螺纹技术优势。
本双向锥形螺纹的螺栓与螺母，传动连接时，通过双向锥形孔与双向圆锥台体的旋合连接，双向承载，当外螺纹与内螺纹组成螺纹副，双向圆锥台体与双向锥形孔之间必须要有游隙，内螺纹与外螺纹之间若有油类等介质润滑，将容易形成承载油膜，游隙有利于承载油膜形成，本双向锥形螺纹的螺栓与螺母，应用于传动连接相当于一组由一副和/或数副滑动轴承组成的滑动轴承副，即每一节双向锥形内螺纹双向包容相对应一节双向锥形外螺纹，构成一副滑动轴承， 组成的滑动轴承数量根据应用工况调整，即双向锥形内螺纹与双向锥形外螺纹有效双向接合即有效双向接触抱合的包容与被包容螺纹节数，根据应用工况设计，通过双向锥形孔包容双向圆锥台体且径向、轴向、角向、周向等多方向定位，优选地，通过双向锥形孔包容双向圆锥台体且以径向、周向的主定位辅之于轴向、角向的辅助定位进而形成内、外圆锥体的多方向定位直至双向锥形孔圆锥面与双向圆锥台体圆锥面抱合实现自定位或直至定径过盈接触产生自锁，构成一种特殊的圆锥副与螺纹副的合成技术，确保锥形螺纹技术尤其是本双向锥形螺纹的螺栓与螺母连接结构传动连接精度、效率和可靠性。
本双向锥形螺纹的螺栓与螺母，紧固连接、密封连接时，其技术性能是通过双向锥形孔与双向圆锥台体的旋合连接实现的，即圆锥台体第一螺旋状圆锥面与锥形孔第一螺旋状圆锥面定径直至过盈和/或圆锥台体第二螺旋状圆锥面与锥形孔第二螺旋状圆锥面定径直至过盈实现的，根据应用工况，达到一个方向承载和/或两个方向同时分别承载，即双向圆锥台体与双向锥形孔在螺旋线的引导下内圆锥与外圆锥内外径定心直至锥形孔第一螺旋状圆锥面与圆锥台体第一螺旋状圆锥面抱合达到一个方向承载或两个方向同时承载定径配合或直至定径过盈接触和/或锥形孔第二螺旋状圆锥面与圆锥台体第二螺旋状圆锥面抱合达到一个方向承载或两个方向同时承载定径配合或直至定径过盈接触，即通过锥形内螺纹双向内圆锥体包容锥形外螺纹双向外圆锥体的自锁紧且径向、轴向、角向、周向等多方向定位，优选地，通过双向锥形孔包容双向圆锥台体且以径向、周向的主定位辅之于轴向、角向的辅助定位进而形成内、外圆锥体的多方向定位直至双向锥形孔圆锥面与双向圆锥台体圆锥面抱合实现自定位或直至定径过盈接触产生自锁，构成一种特殊的圆锥副与螺纹副的合成技术，确保锥形螺纹技术尤其是本双向锥形螺纹的螺栓与螺母的效率和可靠性，从而实现机械机构连接、锁紧、防松、承载、疲劳和密封等技术性能。
因此，本双向锥形螺纹的螺栓与螺母，传动精度效率高低、承力能力大小、自锁之锁紧力大小、防松能力大小、密封性能好坏等技术性能与圆锥台体第一螺旋状圆锥面及其形成的左侧锥度即第一锥角α1和圆锥台体第二螺旋状圆锥面及其形成的右侧锥度即第二锥角α2和锥形孔第一螺旋状圆锥面及其形成的左侧锥 度即第一锥角α1和锥形孔第二螺旋状圆锥面及其形成的右侧锥度即第二锥角α2的大小有关。柱状母体和筒状母体的材料材质摩擦系数、加工质量、应用工况对圆锥配合也有一定影响。
在上述的双向锥形螺纹的螺栓与螺母，所述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离为具有下底边相同且上底边相同但直角边不同的两个直角梯形的直角边之和的长度的至少一倍。该结构保证了圆锥台体第一螺旋状圆锥面和圆锥台体第二螺旋状圆锥面以及锥形孔第一螺旋状圆锥面和锥形孔第二螺旋状圆锥面具有足够长度，从而保证双向圆锥台体圆锥面与双向锥形孔圆锥面配合时具有足够有效接触面积和强度以及螺旋运动所需要的效率。
在上述的双向锥形螺纹的螺栓与螺母，所述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离等于具有下底边相同且上底边相同但直角边不同的两个直角梯形的直角边之和的长度。该结构保证了圆锥台体第一螺旋状圆锥面和圆锥台体第二螺旋状圆锥面以及锥形孔第一螺旋状圆锥面和锥形孔第二螺旋状圆锥面具有足够长度，从而保证双向圆锥台体圆锥面与双向锥形孔圆锥面配合时具有足够有效接触面积和强度以及螺旋运动所需要的效率。
在上述的双向锥形螺纹的螺栓与螺母，所述的圆锥台体第一螺旋状圆锥面和圆锥台体第二螺旋状圆锥面均为连续螺旋面或非连续螺旋面；所述的锥形孔第一螺旋状圆锥面和锥形孔第二螺旋状圆锥面均为连续螺旋面或非连续螺旋面。
在上述的双向锥形螺纹的螺栓与螺母，所述筒状母体连接孔旋入所述的柱状母体的旋入端时，有旋入方向要求，即筒状母体连接孔不能反方向旋入。
在上述的双向锥形螺纹的螺栓与螺母，所述的柱状母体的一端设有尺寸大于柱状母体外径的头部和/或所述的柱状母体的一端和/或两端都设有小于柱状母体螺杆体的双向锥形外螺纹小径的头部，所述的连接孔为设于螺母上的螺纹孔。即这里的柱状母体与头部连接为螺栓，没有头部和/或两端头部小于双向锥形外螺纹小径的和/或中间没有螺纹两端各有双向锥形外螺纹的为螺柱，连接孔设置在螺母内。
与现有的技术相比，本双向锥形螺纹的螺栓与螺母连接结构的优点在于：设计 合理，结构简单，通过内、外圆锥同轴内外径定心形成的圆锥副双向承载或定径直至过盈配合来实现紧固和连接功能，操作方便，锁紧力大，承力值大，防松性能良好，传动效率和精度高，机械密封效果好，稳定性好，能防止连接时出现松脱现象，具有自锁和自定位功能。
发明的有益效果
对附图的简要说明
附图说明
图1是本发明提供的实施例一的类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与双螺母连接结构示意图。
图2是本发明提供的实施例一的类哑铃状(左侧锥度小于右侧锥度)双向锥形螺纹外螺纹的螺栓及外螺纹完整单元体螺纹结构示意图。
图3是本发明提供的实施例一的类哑铃状(左侧锥度小于右侧锥度)双向锥形螺纹内螺纹的螺母体及内螺纹完整单元体螺纹结构示意图。
图4是本发明提供的实施例二的类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与单螺母连接结构示意图。
图5是本发明提供的实施例三的类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与双螺母连接结构示意图。
图6是本发明提供的实施例四的类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与双螺母(双螺母中间有垫片)连接结构示意图。
[根据细则26改正28.05.2019]　
图7是本发明背景技术中所涉及的“现有螺纹技术的螺纹是圆柱或圆锥表面上的斜面”的图示。
[根据细则26改正28.05.2019]　
图8是本发明背景技术中所涉及的“现有螺纹技术原理——斜面原理的斜面滑块模型”的图示。
[根据细则26改正28.05.2019]　
图9是本发明背景技术中所涉及的“现有螺纹技术的螺纹升角”的图示。
图中，锥形螺纹1、筒状母体2、螺母体21、螺母体22、柱状母体3、螺杆体31、锥形孔4、双向锥形孔41、双向锥形孔圆锥面42、锥形孔第一螺旋状圆锥面421、第一锥角α1、锥形孔第二螺旋状圆锥面422、第二锥角α2、内螺旋线5、内螺纹6、圆锥台体7、双向圆锥台体71、双向圆锥台体圆锥面72、圆锥台体第一螺 旋状圆锥面721、第一锥角α1、圆锥台体第二螺旋状圆锥面722、第二锥角α2、外螺旋线8、外螺纹9、类哑铃状94、左侧锥度95、右侧锥度96、左向分布97、右向分布98、螺纹连接副和/或螺纹副10、游隙101、锁紧支承面111、锁紧支承面112、锥形螺纹支承面122、锥形螺纹支承面121、工件130、螺母体锁紧方向131、垫片132、圆锥轴线01、螺纹轴线02、斜面体上的滑块A、斜面体B、重力G、重力沿着斜面分量G1、摩擦力F、螺纹升角
Figure PCTCN2019081392-appb-000001
当量摩擦角P、传统外螺纹大径d、传统外螺纹小径d1、传统外螺纹中径d2。
发明实施例
具体实施方式
下面结合附图和具体实施方式对本发明做进一步详细的说明。
实施例一
如图1、图2、图3所示，本实施例采取螺栓与双螺母连接结构，包括呈螺旋状分布于柱状母体3外表面的双向圆锥台体71和呈螺旋状分布于筒状母体2内表面的双向锥形孔41，即包括相互螺纹配合的外螺纹9与内螺纹6，内螺纹6分布的是呈螺旋状的双向锥形孔41并以“非实体空间”形态存在、外螺纹9分布的是呈螺旋状的双向圆锥台体71并以“材料实体”形态存在，内螺纹6与外螺纹9是包容件与被包容件关系：内螺纹6与外螺纹9是一节一节双向锥形几何体旋合套接在一起抱合直至过盈配合，即双向锥形孔41一节一节包容双向圆锥台体71，双向包容限制锥形孔4与圆锥台体7之间的无序自由度，螺旋运动又让双向锥形螺纹的螺栓与螺母的锥形螺纹连接副10获取了必须的有序自由度，有效合成了圆锥副与螺纹副技术特点。
本实施例中的双向锥形螺纹的螺栓与螺母，锥形螺纹连接副10所述的圆锥台体7和/或锥形孔4达到一定锥度，即组成圆锥副的圆锥体达到一定锥角，所述的锥形螺纹连接副10才具备自锁性和自定位性，所述的锥度包括左侧锥度95和右侧锥度96，所述的锥角包括左侧锥角和右侧锥角，本实施例中非对称双向锥形螺纹1是左侧锥度95小于右侧锥度96，所述的左侧锥度95对应左侧锥角即第一锥角α1，优选地，0°＜第一锥角α1＜53°，优选地，第一锥角α1取值为2°～40°；所述的右侧锥度96对应右侧锥角即第二锥角α2，优选地，0°＜第二锥角α2＜53°，优 选地，第二锥角α2取值为2°～40°，个别特殊领域，即或不需要自锁性和/或自定位性要求弱和/或轴向承载力要求高的连接应用领域，优选地，53°≤第二锥角α2＜180°，优选地，第二锥角α2取值为53°～90°。
所述的外螺纹9设置在柱状母体3外表面，其特征是，所述的柱状母体3有螺杆体31，所述的螺杆体31外表面上有呈螺旋状分布的圆锥台体7，所述的圆锥台体7包括非对称双向圆锥台体71，所述的非对称双向圆锥台体71是一种呈类哑铃状94的特殊双向锥形几何体，所述的柱状母体3可以是实心或空心，包括圆柱体、圆锥体、管体等需要在其外表面加工外螺纹的工件和物体。
所述的呈类哑铃状94非对称双向圆锥台体71，其特征是，是由具有下底面相同且上顶面相同但锥高不同的两个圆锥台体的上顶面对称并相向接合而成且下底面处于双向圆锥台体71的两端且形成非对称双向锥形螺纹1时包括分别与相邻双向圆锥台体71的下底面相互接合和/或或将分别与相邻双向圆锥台体71的下底面相互接合，所述的圆锥台体7外表面有非对称双向圆锥台体圆锥面72，所述的外螺纹9包括圆锥台体第一螺旋状圆锥面721和圆锥台体第二螺旋状圆锥面722和外螺旋线8，在通过螺纹轴线02的截面内，其完整单节非对称双向锥形外螺纹9是中间小两端大且左侧圆锥台体的锥度小于右侧圆锥台体的锥度的呈类哑铃状94的特殊双向锥形几何体，所述的非对称双向圆锥台体71包括双向圆锥台体圆锥面72，其左侧圆锥面即圆锥台体第一螺旋状圆锥面721两条素线间的夹角为第一锥角α1，圆锥台体第一螺旋状圆锥面721形成左侧锥度95且呈右向分布98，其右侧圆锥面即圆锥台体第二螺旋状圆锥面722两条素线间的夹角为第二锥角α2，圆锥台体第二螺旋状圆锥面722形成右侧锥度96且呈左向分布97，所述的第一锥角α1与第二锥角α2所对应锥度方向相向，所述的素线是圆锥表面与通过圆锥轴线01的平面的交线，所述的双向圆锥台体71的圆锥台体第一螺旋状圆锥面721和圆锥台体第二螺旋状圆锥面722形成的形状与以重合于柱状母体3中轴线具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿柱状母体3中轴线匀速轴向移动而由直角梯形结合体两条斜边形成的回旋体的螺旋外侧面形状相同，所述的直角梯形结合体是指具有下底边相同且上底边相同 但直角边不同的两个直角梯形的上底边对称并相向接合且下底边分别处于直角梯形结合体两端的特殊几何体。
所述的内螺纹6设置在筒状母体2内表面，其特征是，所述的筒状母体2包括螺母体21、螺母体22，所述的螺母体21、螺母体22内表面上有呈螺旋状分布的锥形孔4，所述的锥形孔4包括非对称双向锥形孔41，所述的非对称双向锥形孔41是一种呈类哑铃状94的特殊双向锥形几何体，所述的筒状母体2包括圆筒体和/或非圆筒体等需要在其内表面加工内螺纹的工件和物体。
所述的呈类哑铃状94非对称双向锥形孔41，其特征是，是由具有下底面相同且上顶面相同但锥高不同的两个锥形孔上顶面对称并相向接合而成且下底面处于双向锥形孔41的两端且形成非对称双向锥形螺纹1时包括分别与相邻双向锥形孔41的下底面相互接合和/或或将分别与相邻双向锥形孔41的下底面相互接合，所述的锥形孔4包括非对称双向锥形孔圆锥面42，所述的内螺纹6包括锥形孔第一螺旋状圆锥面421和锥形孔第二螺旋状圆锥面422和内螺旋线5，在通过螺纹轴线02的截面内，其完整单节非对称双向锥形内螺纹6是中间小两端大且左侧锥形孔锥度小于右侧锥形孔锥度的呈类哑铃状94的特殊双向锥形几何体，所述的双向锥形孔41包括双向锥形孔圆锥面42，其左侧圆锥面即锥形孔第一螺旋状圆锥面421的两条素线形成的夹角为第一锥角α1，锥形孔第一螺旋状圆锥面421形成左侧锥度95且呈右向分布98，其右侧圆锥面即锥形孔第二螺旋状圆锥面422的两条素线形成的夹角为第二锥角α2，锥形孔第二螺旋状圆锥面422形成右侧锥度96且呈左向分布97，所述的第一锥角α1与第二锥角α2所对应锥度方向相向，所述的素线是圆锥表面与通过圆锥轴线01的平面的交线，所述的双向锥形孔41的锥形孔第一螺旋状圆锥面421和锥形孔第二螺旋状圆锥面422形成的形状与以重合于筒状母体2中轴线具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿筒状母体2中轴线匀速轴向移动而由直角梯形结合体两条斜边形成的回旋体的螺旋外侧面形状相同，所述的直角梯形结合体是指具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合且下底边分别处于直角梯形结合体两端的特殊几何体。
本实施例采取的是螺栓与双螺母连接结构，所述的双螺母包括螺母体21和螺母体22，螺母体21位于被紧固工件130的左侧，螺母体22位于被紧固工件130的右侧，螺栓与双螺母工作时，与被紧固工件130之间的关系是刚性连接，所述的刚性连接是指螺母端面支承面与工件130支承面互为支承面，包括锁紧支承面111和锁紧支承面112，所述的工件130是指包括工件130在内的被连接物体。
本实施例的螺纹工作支承面是不同的，包括锥形螺纹支承面121和锥形螺纹支承面122，当筒状母体2位于被紧固工件130左侧，即被紧固工件130的左侧端面、筒状母体2即左侧螺母体21的右侧端面是左侧螺母体21与被紧固工件130的锁紧支承面111时，左侧螺母体21和柱状母体3即螺杆体31即螺栓的双向锥形螺纹1的左侧螺旋状圆锥面是螺纹工作支承面即锥形孔第一螺旋状圆锥面421和圆锥台体第一螺旋状圆锥面721是锥形螺纹支承面122且锥形孔第一螺旋状圆锥面421与圆锥台体第一螺旋状圆锥面721互为支承面，当筒状母体2位于被紧固工件130右侧，即被紧固工件130的右侧端面、筒状母体2即右侧螺母体22的左侧端面是右侧螺母体22与被紧固工件130的锁紧支承面112时，右侧螺母体22和柱状母体3即螺杆体31即螺栓的双向锥形螺纹1的右侧螺旋状圆锥面是螺纹工作支承面即锥形孔第二螺旋状圆锥面422和圆锥台体第二螺旋状圆锥面722是锥形螺纹支承面121且锥形孔第二螺旋状圆锥面422与圆锥台体第二螺旋状圆锥面722互为支承面。
本双向锥形螺纹的螺栓与螺母，传动连接时，通过双向锥形孔41与双向圆锥台体71的旋合连接，双向承载，当外螺纹9与内螺纹6组成螺纹副10，双向圆锥台体71与双向锥形孔41之间必须要有游隙101，内螺纹6与外螺纹9之间若有油类等介质润滑，将容易形成承载油膜，游隙101有利于承载油膜形成，所述的锥形螺纹连接副10相当于一组由一副或数副滑动轴承组成的滑动轴承副，即每一节双向锥形内螺纹6双向包容相对应一节双向锥形外螺纹9，构成一副滑动轴承，组成的滑动轴承数量根据应用工况调整，即双向锥形内螺纹6与双向锥形外螺纹9有效双向接合即有效双向接触抱合的包容与被包容螺纹节数，根据应用工况设计，通过锥形孔4双向包容圆锥台体7且径向、轴向、角向、周向等多方向定位，构成一种特殊的圆锥副与螺纹副的合成技术，确保锥形螺纹技术尤其是双向锥形螺纹的螺栓与螺母连接结构的传动连接精度、效率和可靠性。
本双向锥形螺纹的螺栓与螺母，紧固连接、密封连接时，其技术性能是通过双向锥形孔41与双向圆锥台体71的旋合连接实现的，即圆锥台体第一螺旋状圆锥面721与锥形孔第一螺旋状圆锥面421定径直至过盈和/或圆锥台体第二螺旋状圆锥面722与锥形孔第二螺旋状圆锥面422定径直至过盈实现的，根据应用工况，达到一个方向承载和/或两个方向同时分别承载，即双向圆锥台体71与双向锥形孔41在螺旋线的引导下内圆锥与外圆锥内外径定心直至锥形孔第一螺旋状圆锥面421与圆锥台体第一螺旋状圆锥面721抱合直至过盈接触和/或锥形孔第二螺旋状圆锥面422与圆锥台体第二螺旋状圆锥面722抱合直至过盈接触，从而实现机械机构连接、锁紧、防松、承载、疲劳和密封等技术性能。
因此，本实施例中的双向锥形螺纹的螺栓与螺母，传动精度、传动效率高低、承力能力大小、自锁之锁紧力大小、防松能力大小、密封性能好坏、重复使用性等技术性能与圆锥台体第一螺旋状圆锥面721及其形成的左向锥度95即第一锥角α1和圆锥台体第二螺旋状圆锥面722及其形成的右向锥度96即第二锥角α2和锥形孔第一螺旋状圆锥面421及其形成的左向锥度95即第一锥角α1和锥形孔第二螺旋状圆锥面422及其形成的右向锥度96即第二锥角α2的大小有关。柱状母体3和筒状母体2的材料材质摩擦系数、加工质量、应用工况对圆锥配合也有一定影响。
在上述的双向锥形螺纹的螺栓与螺母，所述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离为具有下底边相同且上底边相同但直角边不同的两个直角梯形的直角边之和的长度的至少一倍。该结构保证了圆锥台体第一螺旋状圆锥面721和圆锥台体第二螺旋状圆锥面722以及锥形孔第一螺旋状圆锥面421和锥形孔第二螺旋状圆锥面422具有足够长度，从而保证双向圆锥台体圆锥面72与双向锥形孔圆锥面42配合时具有足够有效接触面积和强度及螺旋运动所需要的效率。
在上述的双向锥形螺纹的螺栓与螺母，所述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离等于具有下底边相同且上底边相同但直角边不同的两个直角梯形的直角边之和的长度。该结构保证了圆锥台体第一螺旋状圆锥面721和圆锥台体第二螺旋状圆锥面722以及锥形孔第一螺旋状圆锥面4 21和锥形孔第二螺旋状圆锥面422具有足够长度，从而保证双向圆锥台体圆锥面72与双向锥形孔圆锥面42配合时具有足够有效接触面积和强度以及螺旋运动所需要的效率。
在上述的双向锥形螺纹的螺栓与螺母，所述的圆锥台体第一螺旋状圆锥面721和圆锥台体第二螺旋状圆锥面722均为连续螺旋面或非连续螺旋面；所述的锥形孔第一螺旋状圆锥面421和锥形孔第二螺旋状圆锥面422均为连续螺旋面或非连续螺旋面。
在上述的双向锥形螺纹的螺栓与螺母，所述的筒状母体2连接孔旋入所述的柱状母体3的旋入端时，有旋入方向要求，即筒状母体2连接孔不能反方向旋入。
在上述的双向锥形螺纹的螺栓与螺母，所述的柱状母体3的一端设有尺寸大于柱状母体3外径的头部和/或所述的柱状母体3的一端或两端都设有小于柱状母体3螺杆体31的锥形螺纹外螺纹9小径的头部，所述的连接孔为设于螺母体21上的螺纹孔。即这里的柱状母体3与头部连接为螺栓，没有头部和/或两端头部小于双向锥形外螺纹9小径和/的或中间没有螺纹两端各有双向锥形外螺纹9的为螺柱，连接孔设置在螺母体21内。
与现有的技术相比，本双向锥形螺纹的螺栓与螺母连接结构的锥形螺纹连接副10的优点在于：设计合理，结构简单，通过内外圆锥形成的圆锥副定径直至过盈配合来实现紧固和连接功能，操作方便，锁紧力大，承力值大，防松性能良好，传动效率和精度高，机械密封效果好，稳定性好，能防止连接时出现松脱现象，具有自锁和自定位功能。
实施例二
如图4所示，本实施例的结构、原理以及实施步骤与实施例一类似，不同的地方在于，本实施例采取的是螺栓与单螺母连接结构且螺栓体有大于螺杆体31的六角头部，当螺栓六角头部位于左侧，所述的筒状母体2即螺母体21即单螺母位于被紧固工件130的右侧，本实施例的螺栓与单螺母连接结构工作时，与被紧固工件130之间的关系同样是刚性连接，所述的刚性连接是指螺母体21端面与工件130端面的相向端面互为支承面，所述的支承面是锁紧支承面111，所述工件130是指包括工件130在内的被连接物体。
本实施例的螺纹工作支承面是锥形螺纹支承面122，即筒状母体2即螺母体21即单螺母位于被紧固工件130的右侧，螺栓与单螺母连接结构工作时，工件130的右侧端面、螺母体21的左侧端面是螺母体21与被紧固工件130的锁紧支承面111，螺母体21和柱状母体3即螺杆体31即螺栓的双向锥形螺纹1的右侧螺旋状圆锥面是螺纹工作支承面即锥形孔第二螺旋状圆锥面422和圆锥台体第二螺旋状圆锥面722是锥形螺纹支承面122且锥形孔第二螺旋状圆锥面422与圆锥台体第二螺旋状圆锥面722互为支承面。
本实施例中，当螺栓六角头部位于右侧，其结构、原理以及实施步骤与本实施例类似。
实施例三
如图5所示，本实施例的结构、原理以及实施步骤与实施例一类似，不同的地方在于，双螺母与被紧固工件130的位置关系不同，所述的双螺母包括螺母体21和螺母体22且螺栓体有大于螺杆体31的六角头部，当螺栓六角头部位于左侧，螺母体21、螺母体22均位于被紧固工件130的右侧，螺栓与双螺母连接结构工作时，螺母体21、螺母体22与被紧固工件130之间的关系是非刚性连接，所述的非刚性连接是指两个螺母即螺母体21、螺母体22的相向侧面端面互为支承面，所述的支承面包括锁紧支承面111和锁紧支承面112，主要应用于非刚性材料或传动件等非刚性连接工件130或要通过双螺母安装满足需求等应用领域。所述的工件130是指包括工件130在内的被连接物体。
本实施例的螺纹工作支承面是不同的，包括锥形螺纹支承面121和锥形螺纹支承面122，筒状母体2包括左侧螺母体21与右侧螺母体22，左侧螺母体21的右侧端面即锁紧支承面111与右侧螺母体22的左侧端面即锁紧支承面112相向直接接触并互为锁紧支承面，当左侧螺母体21的右侧端面是锁紧支承面111时，左侧螺母体21和柱状母体3即螺杆体31即螺栓的双向锥形螺纹1的左侧螺旋状圆锥面是螺纹工作支承面即锥形孔第一螺旋状圆锥面421和圆锥台体第一螺旋状圆锥面721是锥形螺纹支承面122且锥形孔第一螺旋状圆锥面421与圆锥台体第一螺旋状圆锥面721互为支承面，当右侧螺母体22的左侧端面是锁紧支承面112时，右侧螺母体22和柱状母体3即螺杆体31即螺栓的双向锥形螺纹1的右侧螺旋状圆锥面是 螺纹工作支承面即锥形孔第二螺旋状圆锥面422和圆锥台体第二螺旋状圆锥面722是锥形螺纹支承面121且锥形孔第二螺旋状圆锥面422与圆锥台体第二螺旋状圆锥面722互为支承面。
本实施例中，当位于内侧的筒状母体2即与被紧固工件130相邻的螺母体21已经与柱状母体3即螺杆体31即螺栓有效结合在一起即组成锥形螺纹连接副10的内螺纹6与外螺纹9有效抱合在一起，位于外侧的筒状母体2即与被紧固工件130不相邻的螺母体22可以根据应用工况需要保持原状和/或拆卸掉而只留一只螺母(譬如当装备要求轻量化或不需要双螺母来确保连接技术可靠性等应用领域)，被拆除螺母体22不作为连接螺母使用而只是作为安装工艺螺母使用，所述的安装工艺螺母内螺纹除了是采用双向锥形螺纹制造，还可以是采用单向锥形螺纹以及可以与锥形螺纹1拧合的其他螺纹即包括三角形螺纹、梯形螺纹、锯齿形螺纹等非锥形螺纹的螺纹制造的螺母体22，确保连接技术可靠性前提，所述的锥形螺纹连接副10是一种闭环紧固技术系统即锥形螺纹连接副10的内螺纹6与外螺纹9实现有效抱合在一起后锥形螺纹连接副10将自成独立技术系统而不依赖于第三者的技术补偿来确保连接技术系统的技术有效性即即便没有其他物件的支持包括锥形螺纹连接副10与被紧固工件130之间有间隙也不会影响锥形螺纹连接副10的有效性，这将有利于大大减轻装备重量，去除无效载荷，提升装备的有效载荷能力、制动性能、节能减排等等技术需求，这是当本双向锥形螺纹的螺栓与螺母连接结构的锥形螺纹连接副10与被紧固工件130的关系无论是非刚性连接还是刚性连接时所独具而其他螺纹技术不具备的螺纹技术优势。
本实施例中，当螺栓六角头部位于右侧，则螺母体21、螺母体22均位于被紧固工件130的左侧，其结构、原理以及实施步骤与本实施例类似。
实施例四
如图6所示，本实施例的结构、原理以及实施步骤与实施例一和实施例三类似，不同的地方在于，本实施例是在实施例三的基础上在螺母体21与螺母体22之间增加了垫片132之类的间隔物，即左侧螺母体21的右侧端面与右侧螺母体22的左侧端面经垫片132而相向间接接触由此间接互为锁紧支承面即左侧螺母体21右侧端面与右侧螺母体22左侧端面相互关系由原先直接互为锁紧支承面变成是间 接互为锁紧支承面。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
尽管本文较多地使用了锥形螺纹1、筒状母体2、螺母体21、螺母体22、柱状母体3、螺杆体31、锥形孔4、双向锥形孔41、双向锥形孔圆锥面42、锥形孔第一螺旋状圆锥面421、第一锥角α1、锥形孔第二螺旋状圆锥面422、第二锥角α2、内螺旋线5、内螺纹6、圆锥台体7、双向圆锥台体71、双向圆锥台体圆锥面72、圆锥台体第一螺旋状圆锥面721、第一锥角α1、圆锥台体第二螺旋状圆锥面722、第二锥角α2、外螺旋线8、外螺纹9、类哑铃状94、左侧锥度95、右侧锥度96、左向分布97、右向分布98、螺纹连接副和/螺纹副10、游隙101、自锁力、自锁紧、自定位、压强、圆锥轴线01、螺纹轴线02、镜像、轴套、轴、单锥形体、双锥形体、圆锥体、内圆锥体、锥孔、外圆锥体、锥体、圆锥副、螺旋结构、螺旋运动、螺纹体、完整单元体螺纹、轴心力、轴心力角、反轴心力、反轴心力角、向心力、反向心力、反向共线、内应力、双向力、单向力、滑动轴承、滑动轴承副、锁紧支承面111、锁紧支承面112、锥形螺纹支承面122、锥形螺纹支承面121、非实体空间、材料实体、工件130、螺母体锁紧方向131、非刚性连接、非刚性材料、传动件、垫片132等等术语，但并不排除使用其它术语的可能性，使用这些术语仅仅是为了更方便地描述和解释本发明的本质，把它们解释成任何一种附加的限制都是与本发明精神相违背的。

Claims (10)

  1. 一种哑铃状锥度左小右大双向锥形螺纹螺栓与螺母连接结构即类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹的螺栓与螺母连接结构，包括相互螺纹配合的外螺纹(9)与内螺纹(6)，其特征是，所述的类哑铃状(左侧锥度小于右侧锥度)非对称双向锥形螺纹(1)其完整单元体螺纹是一种呈螺旋状中间小两端大且左侧锥度(95)小于右侧锥度(96)的包括双向锥形孔(41)和/或双向圆锥台体(71)的类哑铃状(94)非对称双向锥形体，所述的内螺纹(6)螺纹体是筒状母体(2)内表面呈螺旋状双向锥形孔(41)并以“非实体空间”形态存在，所述的外螺纹(9)螺纹体是柱状母体(3)外表面呈螺旋状双向圆锥台体(71)并以“材料实体”形态存在，上述的非对称双向锥形体的左侧锥面形成左侧锥度(95)对应第一锥角(α1)、右侧锥面形成右侧锥度(96)对应第二锥角(α2)，左侧锥度(95)与右侧锥度(96)方向相向且锥度不同，上述的内螺纹(6)与外螺纹(9)通过锥孔包容锥体直至内、外锥面相互承载，技术性能主要取决相互配合螺纹体锥面及锥度大小，优选地，0°＜第一锥角(α1)＜53°，0°＜第二锥角(α2)＜53°，个别特殊领域，优选地，53°≤第二锥角(α2)＜180°。
  2. 根据权利要求1的连接结构，其特征是，上述的类哑铃状(94)双向锥形内螺纹(6)包括双向锥形孔圆锥面(42)的左侧圆锥面即锥形孔第一螺旋状圆锥面(421)和右侧圆锥面即锥形孔第二螺旋状圆锥面(422)和内螺旋线(5)，锥形孔第一螺旋状圆锥面(421)和锥形孔第二螺旋状圆锥面(422)即双向螺旋状圆锥面形成的形状与以重合于筒状母体(2)中轴线的具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿筒状母体(2)中轴线匀速轴向移动而由直角梯形结 合体两条斜边形成的回旋体的螺旋外侧面形状相同；上述的类哑铃状(94)双向锥形外螺纹(9)包括双向圆锥台体圆锥面(72)的左侧圆锥面即圆锥台体第一螺旋状圆锥面(721)和右侧圆锥面即圆锥台体第二螺旋状圆锥面(722)和外螺旋线(8)，圆锥台体第一螺旋状圆锥面(721)和圆锥台体第二螺旋状圆锥面(722)即双向螺旋状圆锥面形成的形状与以重合于柱状母体(3)中轴线的具有下底边相同且上底边相同但直角边不同的两个直角梯形的上底边对称并相向接合的直角梯形结合体的直角边为回转中心周向匀速回转且该直角梯形结合体同时沿柱状母体(3)中轴线匀速轴向移动而由直角梯形结合体两条斜边形成的回旋体的螺旋外侧面形状相同。
  3. 根据权利要求2的连接结构，其特征是，上述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离为直角梯形结合体两个直角梯形直角边之和长度的至少一倍。
  4. 根据权利要求2的连接结构，其特征是，上述的直角梯形结合体匀速回转一周时所述的直角梯形结合体轴向移动的距离等于直角梯形结合体两个直角梯形直角边之和的长度。
  5. 根据权利要求1或2的连接结构，其特征是，上述的双向锥形体的左侧锥面和右侧锥面即锥形孔第一螺旋状圆锥面(421)和锥形孔第二螺旋状圆锥面(422)和内螺旋线(5)均为连续螺旋面或非连续螺旋面和/或圆锥台体第一螺旋状圆锥面(721)和圆锥台体第二螺旋状圆锥面(722)和外螺旋线(8)均为连续螺旋面或非连续螺旋面。
  6. 根据权利要求1的连接结构，其特征是，上述的内螺纹(6)是由具有下底面相同且上顶面相同但锥高不同的两个锥形孔(4)的上顶面对称并相向相互接合且下底面处于双向锥形孔(41)的两端且形成类哑铃状(94)非对称双向锥形螺纹(1)时包括分别与相邻双向锥形孔(41)的下底面相互接合和/或或将分别与相邻双向 锥形孔(41)的下底面相互接合呈螺旋状而成类哑铃状(94)非对称双向锥形内螺纹(6)，上述的外螺纹(9)是由具有下底面相同且上顶面相同但锥高不同的两个圆锥台体(7)的上顶面对称并相向相互接合且下底面处于双向圆锥台体(71)的两端且形成类哑铃状(94)非对称双向锥形螺纹(1)时包括分别与相邻双向圆锥台体(71)的下底面相互接合和/或或将分别与相邻双向圆锥台体(71)的下底面相互接合呈螺旋状而成类哑铃状(94)非对称双向锥形外螺纹(9)。
  7. 根据权利要求1的连接结构，其特征是，上述的内螺纹(6)与外螺纹(9)组成螺纹副(10)是由锥形孔第一螺旋状圆锥面(421)和锥形孔第二螺旋状圆锥面(422)与相互配合的圆锥台体第一螺旋状圆锥面(721)和圆锥台体第二螺旋状圆锥面(722)以接触面为支承面在螺旋线的引导下内圆锥与外圆锥内外径定心直至双向锥形孔圆锥面(42)与双向圆锥台体圆锥面(72)抱合达到螺旋状圆锥面一个方向承载和/或螺旋状圆锥面两个方向同时承载和/或直至定径自定位接触和/或直至定径过盈接触产生自锁。
  8. 根据权利要求1的连接结构，其特征是，采取螺栓与双螺母连接结构，双螺母分别位于被紧固工件左右两侧和/或采取螺栓与单螺母连接结构，包括单螺母(21)位于被紧固工件的右侧或左侧和/或采取螺栓与双螺母连接结构且双螺母均为位于被紧固工件的单侧；且当一个螺母已经与螺栓有效结合在一起即组成锥形螺纹连接副(10)的内螺纹(6)与外螺纹(9)有效抱合在一起，另外的螺母可以拆除和/或保留，被拆除螺母作为安装工艺螺母使用，其内螺纹包括双向锥形螺纹(1)、单向锥形螺纹及三角形螺纹、梯形螺纹、锯齿形螺纹、矩形螺纹、圆弧螺纹等因缘于与上述的双向锥形外螺纹(9)相互螺纹配合才能符合本发明技术精神的传统螺纹。
  9. 根据权利要求1或8的连接结构，其特征在于，上述筒状母体(2) 连接孔旋入所述的柱状母体(3)的旋入端时，有旋入方向要求，即筒状母体(2)连接孔不能反方向旋入，连接孔为设于螺母(21)和螺母(22)上的螺纹孔，连接孔设置在螺母(21)和螺母(22)内，上述螺母是指筒状母体(2)内表面有螺纹结构的包括螺母等物体。
  10. 根据权利要求1的连接结构，其特征是，上述的内螺纹(6)和/或外螺纹(9)包括单节螺纹体是不完整锥形几何体即单节螺纹体是不完整单元体螺纹。
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