CN109519461B - Anti-vibration lockbolt and nut assembly - Google Patents

Anti-vibration lockbolt and nut assembly Download PDF

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Publication number
CN109519461B
CN109519461B CN201910039416.7A CN201910039416A CN109519461B CN 109519461 B CN109519461 B CN 109519461B CN 201910039416 A CN201910039416 A CN 201910039416A CN 109519461 B CN109519461 B CN 109519461B
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China
Prior art keywords
nut
embedded nut
embedded
bolt head
bolt
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Application number
CN201910039416.7A
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Chinese (zh)
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CN109519461A (en
Inventor
张帆
吴海志
刘迪
朱少杰
刚宪约
杨露露
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Shandong University of Technology
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Shandong University of Technology
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Priority to CN201910039416.7A priority Critical patent/CN109519461B/en
Publication of CN109519461A publication Critical patent/CN109519461A/en
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Classifications

    • 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
    • F16B35/06—Specially-shaped heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • 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
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

The invention discloses an anti-vibration lockbolt and nut assembly, which comprises a nut, an embedded nut, a bolt and a spring washer. The nut and the bottom surface of embedded nut all are equipped with the domatic that has the angle relative its longitudinal section, and the nut bottom surface inwards opens along the axis has the hexagon recess, and the inwards along the axis of embedded nut top surface opens has the excision part internal thread annular groove, the bolt head bottom surface of bolt is equipped with the domatic that has the angle relative its longitudinal section, and the inwards along the axis of bolt head bottom surface opens has the hexagon recess, is equipped with the spring washer in the middle of the embedded nut when cooperating with nut, bolt head. During service conditions, the embedded nut is locked by the nut and the bolt head, and meanwhile, the spring washer also compresses the embedded nut, so that the purpose of fastening is achieved, and the anti-loose and anti-vibration advantages are achieved.

Description

Anti-vibration lockbolt and nut assembly
Technical field:
the invention relates to the technical field of fasteners, in particular to an anti-vibration lockbolt and nut assembly.
The background technology is as follows:
the bolt and nut connection is a wide connection mode in the technical field of machinery, is mainly used for installing and fastening various structures, and generally, when the bolt and nut is in working environments such as high-strength impact load, high-strength alternating load and the like in the use process, the bolt and nut can be gradually loosened and then fall off, so that huge potential safety hazards can be caused. The existing bolt and nut assembly consists of a bolt with external threads and a nut with internal threads, is easy to install and detach, and is easy to loosen and fall off when encountering conditions such as load, vibration and the like.
The invention comprises the following steps:
in order to solve the defects that the traditional bolt and nut are easy to loosen and fall off under working environments such as a certain load and vibration in the prior art, the invention aims to solve the technical problem and provides an anti-vibration anti-loose bolt and nut assembly.
In order to achieve the above object, the technical solution of the present invention is: the invention relates to an anti-vibration lockbolt and nut assembly, which comprises a nut, an embedded nut, a bolt and a spring washer, wherein the nut is embedded in the embedded nut; the bottom surface of the nut is provided with an angle relative to the longitudinal section of the nut, and a hexagonal groove matched with the embedded nut is formed in the bottom surface along the axis inwards; the bottom surface of the embedded nut is provided with an angle relative to the longitudinal section of the embedded nut, and the top surface is internally provided with a cut-away part internal thread annular groove along the axis; the bottom surface of the bolt head is provided with an angle relative to the longitudinal section of the bolt head, a hexagonal groove matched with the embedded nut is formed in the bottom surface along the axis inwards, the embedded nut is connected to the bolt in a threaded manner and is matched with the hexagonal groove of the bolt head, a spring washer is arranged in the middle of the embedded nut when the embedded nut is matched with the bolt head, and the spring washer is arranged in the middle of the embedded nut and the nut.
The method comprises the steps of placing a spring washer into a hexagonal groove of a bolt head, matching an embedded nut into the hexagonal groove of the bolt head, enabling the inclined direction of the bottom surface of the embedded nut to be opposite to that of the bottom surface of the bolt head, enabling a bolt to pass through a light hole of a fastening object, placing the spring washer into the hexagonal groove of the nut, matching the embedded nut into the hexagonal groove of the nut, enabling the inclined direction of the bottom surface of the nut to be opposite to that of the bottom surface of the embedded nut, and enabling the matched nut and the embedded nut to be screwed on the bolt simultaneously.
After the scheme is adopted, the tightening torque is continuously applied to the nut and the bolt head, the bottom surface of the embedded nut is close to the fastener, the nut and the bolt head tightly press the bottom surface of the spring washer to be in contact with the fastener, the inclination directions of the bottom surfaces of the nut and the embedded nut are opposite after the nut and the bolt head are matched with each other, the top surface of the embedded nut is inwards provided with the annular groove which enables the bolt to bend and deform along the axis, when the bottom surfaces of the nut, the embedded nut and the bolt head are tightly attached to a solid object, the nut, the embedded nut and the bolt head respectively enable the upper end and the lower end of the bolt to bend in opposite directions for two times, so that the nut and the bolt head lock the embedded nut, and the spring washer play a role of tightly pressing the embedded nut, thereby enabling the bolt-nut assembly to lock a fastening object, and having the advantages of looseness resistance and vibration resistance.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the whole structure of the present invention
FIG. 2 is an assembled front view and a cross-sectional view in a tightened state of the present invention
FIG. 3 is a bottom view, front view and cross-sectional view of the nut of the present invention
FIG. 4 is a bottom view, front view and cross-sectional view of the embedded nut of the present invention
FIG. 5 is a perspective view and a front view of the bolt of the present invention
FIG. 6 is a perspective view of a spring washer of the present invention
Detailed Description
The anti-vibration lockbolt and nut assembly shown in fig. 1 comprises a nut (1), an embedded nut I (2), an embedded nut II (3), a bolt (4), a spring washer I (5) and a spring washer II (6); the method is characterized in that: the bottom surface (1-2) of the nut (1) has an angle relative to the longitudinal section, and a hexagonal groove (1-1) is formed on the bottom surface (1-2) inwards along the axis; the bottom surface (2-2) of the embedded nut I (2) is angled relative to the longitudinal section, the bottom surface (3-2) of the embedded nut II (3) is angled relative to the longitudinal section, and the top surfaces of the embedded nut I (2) and the embedded nut II (3) are internally provided with cut-out part internal thread annular grooves (2-1, 3-1) along the axis; the bottom surface (4-3) of the bolt head (4-1) of the bolt (4) is provided with an angle relative to the longitudinal section of the bolt head, a hexagonal groove (4-2) is formed in the bottom surface (4-3) along the axis inwards, a first spring washer (5) is positioned between the hexagonal groove (1-1) of the nut (1) and the first embedded nut (2), and a second spring washer (6) is positioned between the hexagonal groove (4-2) of the bolt head (4-1) and the second embedded nut (3).
An assembly process of the anti-vibration lockbolt-nut assembly shown in fig. 2 is: the second spring washer (6) is placed into the hexagonal groove (4-2) of the bolt head (4-1), the second embedded nut (3) is matched into the hexagonal groove (4-2) of the bolt head (4-1), the inclination direction of the bottom surface (3-2) of the second embedded nut (3) is opposite to the inclination direction of the bottom surface (4-3) of the bolt head (4-1), and the bolt (4) passes through the unthreaded hole of the fastener. The first spring washer (5) is placed into the hexagonal groove (1-1) of the nut (1), the first embedded nut (2) is matched into the nut (1), the inclination direction of the bottom surface (1-2) of the nut (1) is opposite to that of the bottom surface (2-2) of the first embedded nut (2), the first embedded nut is simultaneously connected to the bolt (4) in a screwed mode, tightening torque is continuously applied to the nut (1) and the bolt head (4-1), and the bottom surfaces (2-2) and (3-2) of the first embedded nut (2) and the second embedded nut (3) are tightly attached to the fastener while the bottom surfaces (1-2) and the bottom surfaces (4-3) of the nut (1) and the bolt head (4-1) are tightly attached to the fastener. Because the bottom surfaces (1-2) and (2-2), (3-2) and (4-3) are opposite in inclination direction after the first nut (1) and the first embedded nut (2), the bolt head (4-1) and the second embedded nut (3) are matched, annular grooves (2-1, 3-1) which enable the bolt (4) to bend and deform smoothly are formed in the top surfaces of the first embedded nut (2) and the second embedded nut (3) along the inner edge of the axis, when the bottom surfaces of the first nut (1), the first embedded nut (2), the second embedded nut (3) and the second embedded nut (4-1) are tightly adhered with the firmware, the first nut (1), the first embedded nut (2), the second embedded nut (3) and the bolt head (4-1) respectively enable the upper end and the lower end of the bolt (4) to bend in opposite directions twice, and when the bolt and nut assembly is in environments such as vibration and load, the two ends of the bolt (4) respectively bend in opposite directions, the first nut (1) and the second embedded nut (2) are locked, the second embedded nut (3) and the second embedded nut (3) are prevented from being compressed tightly by the first spring (3) and the second spring (6).
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, i.e., any modifications, equivalents, improvements, etc. made within the spirit and principles of the invention should be construed as including within its scope.

Claims (1)

1. The application method of the anti-vibration lockbolt and nut assembly is characterized by comprising the following steps of: the anti-vibration anti-loose bolt and nut assembly comprises a first nut (1), a first embedded nut (2), a second embedded nut (3), a bolt (4), a first spring washer (5) and a second spring washer (6); the bottom surface of the nut (1) is provided with an angle relative to the longitudinal section of the nut, and a hexagonal groove is formed in the bottom surface of the nut (1) along the axis inwards; the bottom surface of the embedded nut I (2) is provided with an angle relative to the longitudinal section of the embedded nut I, and the bottom surface of the embedded nut II (3) is provided with an angle relative to the longitudinal section of the embedded nut II; the bottom surface of the bolt head (4-1) is provided with an angle relative to the longitudinal section of the bolt head, and a hexagonal groove is formed in the bottom surface of the bolt head (4-1) along the axis inwards; the embedded nut I (2) is placed in a hexagonal groove in the nut (1), and the inclination directions of the bottom surface of the embedded nut I (2) and the bottom surface of the nut (1) are opposite; the embedded nut II (3) is placed in a hexagonal groove in the bolt head (4-1), and the inclination directions of the bottom surface of the embedded nut II (3) and the bottom surface of the bolt head (4-1) are opposite; the first spring washer (5) is positioned between the hexagonal groove of the nut (1) and the first embedded nut (2); the second spring washer (6) is positioned between the hexagonal groove of the bolt head (4-1) and the second embedded nut (3);
the nut (1) is matched with the embedded nut I (2), the embedded nut II (3) is matched with the bolt head (4-1), the embedded nut II (3) and the bolt head (4-1) are screwed together to clamp a fastened object, and when enough tightening torque is applied to force the bottoms of the nut (1), the embedded nut I (2), the embedded nut II (3) and the bolt head (4-1) to cling to the fastened object, the bolt (4) is bent and deformed in opposite directions at two ends respectively;
the top surfaces of the first embedded nut (2) and the second embedded nut (3) are internally provided with annular grooves along the axis, so that a space is reserved for bending deformation of the bolt (4);
the second spring washer (6) is placed into the hexagonal groove of the bolt head (4-1), the second embedded nut (3) is matched into the hexagonal groove of the bolt head (4-1), the inclination direction of the bottom surface of the second embedded nut (3) is opposite to that of the bottom surface of the bolt head (4-1), the first spring washer (5) is placed into the hexagonal groove of the nut (1) after the bolt (4) passes through the unthreaded hole of the fastener, the first embedded nut (2) is matched into the nut (1), the inclination direction of the bottom surface of the nut (1) is opposite to that of the first embedded nut (2) and is simultaneously screwed on the bolt, and a tightening torque is continuously applied to the nut (1) and the bolt head (4-1), so that the bottom surface of the first embedded nut (2) and the bottom surface of the second embedded nut (3) are closely attached to the fastener while the bottom surface of the nut (1) and the bottom surface of the bolt head (4-1) are closely attached to the fastener.
CN201910039416.7A 2019-01-16 2019-01-16 Anti-vibration lockbolt and nut assembly Active CN109519461B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910039416.7A CN109519461B (en) 2019-01-16 2019-01-16 Anti-vibration lockbolt and nut assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910039416.7A CN109519461B (en) 2019-01-16 2019-01-16 Anti-vibration lockbolt and nut assembly

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Publication Number Publication Date
CN109519461A CN109519461A (en) 2019-03-26
CN109519461B true CN109519461B (en) 2024-04-05

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001173629A (en) * 1999-12-17 2001-06-26 Nippon Pop Rivets & Fasteners Ltd Fastener and fastening method
JP2006242283A (en) * 2005-03-03 2006-09-14 Hitachi Ltd Locking structure of fastening member
CN1906422A (en) * 2003-11-21 2007-01-31 麦克林-福格公司 U-bolt assembly
JP2010121708A (en) * 2008-11-19 2010-06-03 Bc Seisakusho:Kk Nut falling-off preventive clip
CN201687837U (en) * 2010-06-01 2010-12-29 黎应泉 Lock nut
CN101975214A (en) * 2010-11-16 2011-02-16 吴江市金茂五金有限公司 Anti-loose fastening method of bolt pair
KR20110089394A (en) * 2011-07-14 2011-08-08 석 규 이 How to combine bolt and nut loosening prevention spring of structure
CN105020238A (en) * 2011-07-15 2015-11-04 株式会社山崎爱科蒂芙 Locking bolt
CN105587742A (en) * 2016-03-25 2016-05-18 罗灿 Lock nut capable of controlling axis deflection of part
CN205401393U (en) * 2016-02-23 2016-07-27 孟周强 Stop nut
CN206530591U (en) * 2017-02-24 2017-09-29 廖墨海 A kind of anti-loosen screw nut component
EP3365126A1 (en) * 2015-10-20 2018-08-29 Limatoc, Arnold, R. One-piece self-locking nut
CN209539772U (en) * 2019-01-16 2019-10-25 山东理工大学 A kind of antivibration check bolt nut assembly

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001173629A (en) * 1999-12-17 2001-06-26 Nippon Pop Rivets & Fasteners Ltd Fastener and fastening method
CN1906422A (en) * 2003-11-21 2007-01-31 麦克林-福格公司 U-bolt assembly
JP2006242283A (en) * 2005-03-03 2006-09-14 Hitachi Ltd Locking structure of fastening member
JP2010121708A (en) * 2008-11-19 2010-06-03 Bc Seisakusho:Kk Nut falling-off preventive clip
CN201687837U (en) * 2010-06-01 2010-12-29 黎应泉 Lock nut
CN101975214A (en) * 2010-11-16 2011-02-16 吴江市金茂五金有限公司 Anti-loose fastening method of bolt pair
KR20110089394A (en) * 2011-07-14 2011-08-08 석 규 이 How to combine bolt and nut loosening prevention spring of structure
CN105020238A (en) * 2011-07-15 2015-11-04 株式会社山崎爱科蒂芙 Locking bolt
EP3365126A1 (en) * 2015-10-20 2018-08-29 Limatoc, Arnold, R. One-piece self-locking nut
CN205401393U (en) * 2016-02-23 2016-07-27 孟周强 Stop nut
CN105587742A (en) * 2016-03-25 2016-05-18 罗灿 Lock nut capable of controlling axis deflection of part
CN206530591U (en) * 2017-02-24 2017-09-29 廖墨海 A kind of anti-loosen screw nut component
CN209539772U (en) * 2019-01-16 2019-10-25 山东理工大学 A kind of antivibration check bolt nut assembly

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