CN110219874B - An oblique hole type reinforced non-loose nut - Google Patents

An oblique hole type reinforced non-loose nut Download PDF

Info

Publication number
CN110219874B
CN110219874B CN201910327003.9A CN201910327003A CN110219874B CN 110219874 B CN110219874 B CN 110219874B CN 201910327003 A CN201910327003 A CN 201910327003A CN 110219874 B CN110219874 B CN 110219874B
Authority
CN
China
Prior art keywords
threaded
bolt
nut
nut body
oblique hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910327003.9A
Other languages
Chinese (zh)
Other versions
CN110219874A (en
Inventor
曾宪阳
杨红莉
卢松玉
郑子超
季以恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Institute of Technology
Original Assignee
Nanjing Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Institute of Technology filed Critical Nanjing Institute of Technology
Priority to CN201910327003.9A priority Critical patent/CN110219874B/en
Publication of CN110219874A publication Critical patent/CN110219874A/en
Application granted granted Critical
Publication of CN110219874B publication Critical patent/CN110219874B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/04Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention discloses an inclined hole type reinforced non-loose nut, and belongs to the field of mechanical engineering. Comprises a nut body; the nut body is provided with a threaded inclined hole; the lower end of the threaded inclined hole is provided with a notch; the opening is formed in the internal thread of the nut body. The nut and bolt looseness prevention device is simple in structure, solves the problem of looseness between the nut and the bolt, and guarantees safety of practical application.

Description

Oblique hole type reinforced non-loose nut
Technical Field
The invention belongs to the field of mechanical engineering, and particularly relates to an inclined hole type reinforced non-loose nut.
Background
Nut and bolt are the most commonly used parts for fastening, and the commonly used nut and bolt is used on some mechanical devices. The nut can be loosened due to vibration caused by mechanical operation, so that potential safety hazards are brought to production and life, normal operation of machinery is influenced, and particularly on a train running at a high speed, the nut can be easily loosened due to the vibration caused by the high-speed motion of the train, so that the safety of the train and passengers can be endangered. Some anti-loosening nuts in the market adopt an injection molding process to increase the friction force between the nut and the bolt, but can still loosen under high-strength vibration, and the plastic is not durable in long-term weathering. In the market, special bolts or special gaskets are required to be matched with other anti-loosening nuts, and the anti-loosening principle of the anti-loosening nuts is that a plurality of rough edges and corners are arranged on the nuts or the gaskets to increase the friction force of stress surfaces of the nuts or the gaskets and delay the loosening time of the nuts, so that the nuts can not be loosened forever in the true sense, the production process is complex, and the production materials are also required to be harsh.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an inclined hole type reinforced non-loose nut so as to solve the problem that the nut is easy to loose under high-frequency vibration in the prior art.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
an inclined hole type reinforced non-loose nut comprises a nut body;
the nut body is provided with a threaded inclined hole;
the lower end of the threaded inclined hole is provided with a notch;
the opening is formed in the internal thread of the nut body.
Further, the nut body comprises an inclined hole type nut.
Further, the axis of the threaded oblique hole is coplanar with but not parallel to the axis of the nut body.
Furthermore, an included angle formed by the axis of the threaded inclined hole and the axis of the nut body is 0-45 degrees.
Further, the number of the threaded inclined holes is more than or equal to 1.
Further, the thread pitch of the nut body is the same as that of the threaded inclined hole.
Furthermore, the device also comprises a small bolt matched with the thread of the threaded inclined hole; and the top of the small bolt is provided with an inner hexagonal screw.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the threaded inclined hole is formed in the nut body, the opening is formed in the internal thread of the nut body, when the small bolt is screwed into the threaded inclined hole, the small bolt and the external thread of the large bolt can be meshed together at the opening, and the large bolt can be tightly held on the nut body and cannot be loosened under the action of the extrusion force of the small bolt, so that the purpose that the nut cannot be loosened under high-frequency vibration is realized, the thread cannot be damaged, the structure is simple, and the practical application safety is ensured.
Drawings
FIG. 1 is a view of the nut body of the present invention;
FIG. 2 is a view of the structure of a gap A;
FIG. 3 is a view of the structure of the opening B;
FIG. 4 is a view of the structure of a small bolt A;
FIG. 5 is a top view of the small bolt A;
FIG. 6 is a cross-sectional side view of a threaded oblique hole A;
FIG. 7 is a cross-sectional side view of a threaded oblique hole B;
FIG. 8 is a cross-sectional view of the assembly;
FIG. 9 is an assembly view;
figure 10 is an exploded view of the assembly;
FIG. 11 is a force analysis diagram of a large bolt;
FIG. 12 is a graph showing the position distribution of the inclined hole;
fig. 13 is a schematic view of the thread engagement of a large bolt and a small bolt.
Reference numerals: 1-a nut body; 2-a threaded inclined hole A; 3-a threaded inclined hole B; 4-internal threads of the nut; 5-opening A; 6-opening B; 7-small bolt A; 8-small bolt B; 9-small bolt A external thread; 10-small bolt B external thread; 11-inner hexagonal screw; 12-big bolt; 13-big bolt external thread; 14-target object.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the inclined hole type reinforced non-loose nut comprises a nut body 1; the nut body 1 is provided with a threaded inclined hole A2 and a threaded inclined hole B3; the lower ends of the threaded inclined hole A2 and the threaded inclined hole B3 are provided with a notch A5 and a notch B6 which correspond to each other; the gap A5 and the gap B6 are arranged on the internal thread 4 of the nut, and the axes of the inclined thread hole A2 and the inclined thread hole B3L 2L 3Are all aligned with the axis of the nut body 1L 1Coplanar but not parallel and forming an angleθAs shown in fig. 6 and 7.
The axis of the threaded inclined hole A2 and the axis of the threaded inclined hole B3 are both the same as the axis of the nut body 1L 1And therefore, the bottoms of the inclined screw hole A2 and the inclined screw hole B3 are respectively provided with two gaps, namely a gap A5 and a gap B6.
As shown in fig. 4, 5 and 9, the oblique threaded hole a2 and the oblique threaded hole B3 may further be provided with a small bolt a7 and a small bolt B8 which are matched with the small bolt a7 and the small bolt B8, the top of the small bolt a7 and the small bolt B8 is provided with an inner hexagonal screw port 11, the small bolt a7 and the small bolt B8 may be screwed into the oblique threaded hole a2 and the oblique threaded hole B3 by a hexagonal screwdriver, and when screwed into a certain depth, the bottom of the small bolt a7 and the small bolt B8 will be exposed from the notch a5 and the notch B6.
As shown in fig. 8 and 13, the large bolt 12 can be screwed into the nut body 1, and the small bolt a external thread 9 and the small bolt B external thread 10 are the same as the large bolt external thread 13 of the large bolt 12, when the small bolt a7 and the small bolt B8 are screwed into the oblique thread hole a2 and the oblique thread hole B3, respectively, the small bolt a external thread 9 and the small bolt B external thread 10 are just meshed with the large bolt external thread 13, and the meshing means that the crest of one bolt thread intersects with the root of the other bolt thread. When the threads of the threaded inclined hole A2 and the threaded inclined hole B3 are designed, the positions of the threads are adjusted to ensure that the thread tops and the thread bottoms of the small bolt A7 and the small bolt B8 and the large bolt 12 are meshed together.
As shown in fig. 11, due to the axes of the threaded inclined hole a2 and the threaded inclined hole B3L 2L 3Respectively with the axis of the nut body 1L 1Coplanar but not parallel, therefore, when small bolt A7 and small bolt B8 are screwed into threaded inclined hole A2 and threaded inclined hole B3 all the time, small bolt A7, small bolt B8 and large bolt 12 meet at gap A5 and gap B6 respectively, small bolt A7 and small bolt B8 press large bolt 12, and large bolt 12 is pressed by pressing force F of small bolt A7 and small bolt B8 respectivelyA、FBAnd the elastic force F of the nut body 11Because the big bolt 12 is under the action of 3 extrusion forces, the resultant force is zero, and the big bolt 12 can be tightly held on the nut body 1 and cannot be loosened, so that the purpose of not loosening the nut is achieved.
As shown in fig. 12, the number of the inclined screw holes is 1 or more from the upper surface of the nut body 1 downward, and several more inclined screw holes may be provided, and in this embodiment, two inclined screw holes are used, which is the optimum number. The threaded inclined hole A2 and the threaded inclined hole B3 are respectively connected with the central point of the nut body 1OIncluded angle formed isα0 degree< α <180 degrees, in this embodimentαSet to 120 degrees.
The threads of the threaded inclined hole A2 and the threaded inclined hole B3 are matched with the threads of the small bolt A7 and the small bolt B8, and the small bolt A7 and the small bolt B8 can be installed on the threaded inclined hole A2 and the threaded inclined hole B3.
As shown in fig. 13, the thread pitch of small bolt a7 and small bolt B8 is the same as the thread pitch of large bolt 12, which ensures that small bolt a7 and small bolt B8 will snap together when they meet large bolt 12 at notch a5 and notch B6, without damaging the threads.
Axis of the threaded inclined hole A2L 2With the axis of the nut body 1L 1Included angle formed isθAxis of inclined threaded hole B3L 3With the axis of the nut body 1L 1The included angle is alsoθ0 degree< θ <45 degrees, in this exampleθIs 5 degrees.
The working principle is as follows:
as shown in fig. 8, 9, 10, and 11, the target object 14 is attached to the large bolt 12, the nut body 1 is attached, and the nut body 1 is screwed in. Then a small bolt A7 and a small bolt B8 are respectively arranged and screwed by a hexagonal screwdriver. When small bolt A7 and small bolt B8 are tightened, the bottoms of small bolt A7 and small bolt B8 meet and engage with large bolt 12 at notch A5 and notch B6 of nut body 1, respectively. When the small bolt A7 and the small bolt B8 are continuously screwed, the large bolt 12 is pressed by the small bolt A7 and the small bolt B8, so that the nut body 1 and the large bolt 12 are firmly held without loosening, and the large bolt 12 is pressed by three forces, so that the resultant force is zero, and the large bolt 12 and the nut body 1 are fastened.
The invention can effectively solve the equipment accident caused by the loosening of the common bolt device for fixing the equipment due to the continuous vibration of the equipment in railways, trains, automobiles and other engineering mechanical equipment, thereby being beneficial to improving the safety of the vibrating equipment in the using process. The method replaces the traditional anti-loosening methods such as various traditional nuts, nylon locknuts, on-site glue dispensing and the like, and meanwhile, the surface of the parts to be fastened and connected cannot be damaged.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

1.一种斜孔式加固不松动螺母,其特征在于,包括螺母本体;1. An oblique hole type reinforced non-loose nut, characterized in that it comprises a nut body; 所述螺母本体上设置有螺纹斜孔;The nut body is provided with a threaded inclined hole; 所述螺纹斜孔的下端设置有豁口;The lower end of the threaded inclined hole is provided with a gap; 所述豁口开在螺母本体的内螺纹上;The gap is opened on the inner thread of the nut body; 所述螺母本体包括斜孔式螺母;The nut body includes an oblique hole type nut; 所述螺纹斜孔包括螺纹斜孔A和螺纹斜孔B;所述螺纹斜孔A和螺纹斜孔B的轴线与螺母本体的轴线所成夹角均为45度;所述螺纹斜孔A和螺纹斜孔B分别与螺母本体的中心点O所成120度夹角。The threaded oblique hole includes a threaded oblique hole A and a threaded oblique hole B; the included angles formed by the axes of the threaded oblique hole A and the threaded oblique hole B and the axis of the nut body are both 45 degrees; the threaded oblique holes A and The threaded inclined holes B respectively form an included angle of 120 degrees with the center point O of the nut body. 2.根据权利要求1所述的一种斜孔式加固不松动螺母,其特征在于,所述螺纹斜孔的轴线与螺母本体的轴线共面但不平行。2 . The oblique hole reinforced non-loose nut according to claim 1 , wherein the axis of the threaded oblique hole and the axis of the nut body are coplanar but not parallel. 3 . 3.根据权利要求1所述的一种斜孔式加固不松动螺母,其特征在于,所述螺母本体和螺纹斜孔的螺纹螺距相同。3 . The oblique hole type reinforced non-loose nut according to claim 1 , wherein the nut body and the threaded oblique hole have the same thread pitch. 4 . 4.根据权利要求1所述的一种斜孔式加固不松动螺母,其特征在于,还包括与螺纹斜孔螺纹吻合的小螺栓;所述小螺栓的顶部设置有内六角螺口。4 . The oblique hole type reinforced non-loose nut according to claim 1 , further comprising a small bolt that is threadedly matched with the threaded oblique hole; the top of the small bolt is provided with a hexagon socket. 5 .
CN201910327003.9A 2019-04-23 2019-04-23 An oblique hole type reinforced non-loose nut Active CN110219874B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910327003.9A CN110219874B (en) 2019-04-23 2019-04-23 An oblique hole type reinforced non-loose nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910327003.9A CN110219874B (en) 2019-04-23 2019-04-23 An oblique hole type reinforced non-loose nut

Publications (2)

Publication Number Publication Date
CN110219874A CN110219874A (en) 2019-09-10
CN110219874B true CN110219874B (en) 2021-03-26

Family

ID=67820014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910327003.9A Active CN110219874B (en) 2019-04-23 2019-04-23 An oblique hole type reinforced non-loose nut

Country Status (1)

Country Link
CN (1) CN110219874B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2134250Y (en) * 1992-10-08 1993-05-26 中国华北电力联合公司北京电力设备总厂 Changeable cone sleeve of boring stem
CN2233976Y (en) * 1995-08-21 1996-08-28 郑州铁路分局装卸机械修配厂 Double-ball inclined wedge type reinforced lock
CN202326625U (en) * 2011-11-26 2012-07-11 广州市昊志机电股份有限公司 Locking nut structure for ball high-speed mechanical main shaft
CN102808837A (en) * 2012-08-21 2012-12-05 杨宇 Never-dropping nut
CN104675831A (en) * 2015-03-06 2015-06-03 国家电网公司 Anti-loosening bolt
JP6934161B2 (en) * 2017-02-24 2021-09-15 ボルトエンジニア株式会社 Fastening structure
CN207049168U (en) * 2017-07-12 2018-02-27 田国庆 A kind of anti-loosening bolt and nut
CN207297591U (en) * 2017-08-17 2018-05-01 秦征豹 A kind of YCFB locking nuts

Also Published As

Publication number Publication date
CN110219874A (en) 2019-09-10

Similar Documents

Publication Publication Date Title
CN202579570U (en) Hexagonal slotting nut and threaded connection structure provided with same
CN204646951U (en) A kind of self-locking fastening kit
CN210068710U (en) Sleeve locking loose-proof nut
CN110219874B (en) An oblique hole type reinforced non-loose nut
CN107630907A (en) A kind of derotation self-locking loose-proof thread fastener and its application method
CN207393691U (en) A kind of derotation self-locking loose-proof thread fastener
CN209146125U (en) A kind of bolt and nut fastener
CN204003910U (en) A kind of checknut fastening structure
CN102900740A (en) Cap-buckled seismic locking pipe nut
CN214304799U (en) Novel locknut
CN202811778U (en) Clamp type anti-shock and anti-loose nut
CN210290449U (en) Anti-loose nut
CN205207390U (en) Device for preventing nut is not hard up
CN213298555U (en) Anti-loosening bolt
CN206668720U (en) A kind of stop nut
CN202811779U (en) Capping type shockproof locking nut
CN201475138U (en) Bolt connection anti-loose tightening mechanism of wind generating set
CN114857154A (en) An anti-loosening bolt assembly and method suitable for connecting a transmission line cross arm and a tower body
CN103335003A (en) Lock bolt with groove
CN207195412U (en) A kind of locking blade nut
CN208057651U (en) A kind of fastening bolt component
CN203879900U (en) Lock nut set
CN1019408B (en) Screw head type lock washer
CN217002618U (en) Full-size anti-loosening bolt and nut suite
CN111120494A (en) A locknut structure with pitch difference

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant