WO2015000317A1 - 一种防松动圆柱螺纹件 - Google Patents
一种防松动圆柱螺纹件 Download PDFInfo
- Publication number
- WO2015000317A1 WO2015000317A1 PCT/CN2014/075345 CN2014075345W WO2015000317A1 WO 2015000317 A1 WO2015000317 A1 WO 2015000317A1 CN 2014075345 W CN2014075345 W CN 2014075345W WO 2015000317 A1 WO2015000317 A1 WO 2015000317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylindrical
- thread
- threaded part
- internal thread
- internal
- Prior art date
Links
- 230000002265 prevention Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 19
- 238000010168 coupling process Methods 0.000 description 19
- 238000005859 coupling reaction Methods 0.000 description 19
- 238000002474 experimental method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- 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
-
- 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 present invention relates to an anti-loose cylindrical screw.
- the coefficient of friction between the flank and the angle of the thread reaches a certain value, so that the longitudinal self-locking of the coupling pair of the threaded member can be achieved.
- One end of the nut is in contact with the bolt head and has a certain
- the pre-tightening screw coupling pair is taken as an example: the bolt head is oriented upwards perpendicular to the horizontal plane, and the screw coupling pair makes the movement of the hard fixture at a certain speed in the forward horizontal straight direction (only the bolt head and the impact moment) Fixation contact).
- the bolt and the nut are divided into left and right sides by a plane containing the longitudinal central axis of the mutually overlapping internal threads and the longitudinal central axis of the external thread and the direction of movement of the coupling member of the threaded member, the left external thread of the bolt
- the upper flank is a downward curved bevel
- the upper flank of the right external thread of the bolt is an upward curved bevel.
- the contact surface of the upper flank of the external thread is a fulcrum (in theory, the upper and lower flank of the common cylindrical thread and the upper and lower flank of the external thread are arranged by a plurality of mutually non-parallel straight lines along the spiral of the thread, Therefore, between the lower flank of one internal thread of a common cylindrical thread that is in contact with each other and the upper flank of one external thread, the upper flank of the internal thread and the upper flank of the external thread are only changed. Between, there will be only one contact point instead of the contact surface, so this contact point is the theoretical fulcrum.) The tendency to make a leftward rotational motion, so when the threaded member joins the secondary impact on the fixture, the resultant force of the nut exceeds a certain value.
- the nut will be moved without a fixed axial left rotation, that is, the movement of the nut relative to the bolt, and the lateral clearance between the inner and outer threads just provides the space for the nut to perform a fixed axial left rotation.
- a small experiment below Put a circle on a horizontally suspended cylindrical pencil with an inner diameter that is more than twice the outer diameter of the pencil (so that it is easy to experiment and also magnify the visual effect of the experiment).
- the circle will make a longitudinal rotation without a fixed axis, and as long as the thrust direction is constant, the direction of rotation of the circle does not change.
- the direction of rotation of the circle also changes.
- the common cylindrical screw coupling pair is in the environment of lateral vibration or impact, because the spiral structure of the thread, one side inside and outside The friction between the flank of the thread is greater than the friction between the flank of the inner and outer threads of the other side, so the internally threaded or externally threaded member will produce a larger frictional inner and outer thread.
- the contact surface of the flank is a tendency for the fulcrum to perform a lateral rotation motion.
- the internally threaded member or the externally threaded member will perform a lateral rotation without a fixed axis.
- the direction of lateral rotation is the direction in which the inner and outer threaded members are relatively retracted, and the lateral gap between the inner and outer threads provides space for the lateral rotation of the inner and outer threaded members without a fixed axis, and
- the dynamic friction factor between the flank of the external thread and the inclination of the flank cannot satisfy the condition of the lateral self-locking of the coupling pair of the screw.
- the internal or external thread of the Spiralock cylindrical screw has a wedge-shaped bevel at an angle of 30° to the longitudinal central axis of the internal or external thread, and most of the cylindrical threaded parts that need to be loosened are coupled to the threaded surface of the pair.
- the dynamic friction factor is less than tan30° (0.577), so the surface of the internal or external thread cannot be laterally locked with the wedge bevel. Therefore, the recommended large preload should be used to make the surface of the internal or external thread.
- the structure is deformed to form a lateral locking relationship with the wedge-shaped inclined surface, thereby effectively preventing the lateral rotation of the fixed shaft between the inner and outer threaded members, so that the effective locking of the cylindrical threaded coupling pair can be achieved.
- the object is stationary on the inclined surface.
- the inclined angle of the inclined surface is called the friction angle.
- the dynamic friction factor between the inner and outer threads should not be greater than 0.15.
- the anti-looseness of the existing cylindrical threaded screw thread must be dependent on the longitudinal expansion force of the screw and the workpiece to obtain the pre-tightening force, so it is only suitable for the anti-loose of the rigid fastening joint, the existing cylindrical thread of the wedge thread
- some or all of the pre-tightening force may be lost due to the longitudinal deformation of the screw member and the workpiece, thereby causing the loosening failure.
- the present invention provides a loosening cylindrical screw member without longitudinal extension of the screw member and the workpiece. In the case of contraction, it can also achieve effective anti-loose between the cylindrical internal threaded piece and the cylindrical externally threaded part, and is suitable for the anti-loose connection of various cylindrical screw parts such as rigid fastening connection and elastic connection, and the stability against loosening. Stronger.
- the technical solution adopted by the present invention is: a cylindrical internal thread is arranged in the inner hole of the internal threaded member, and a cylindrical external thread is arranged on the screw of the externally threaded member, and the inner hole of the internally threaded member has an internal thread a cylindrical surface whose longitudinal central axes are parallel to each other, the inner diameter of the cylindrical surface is larger than the minimum inner diameter of the internal thread, the surface of the internal thread and the external thread, and the surface of the cylinder are not covered with the loosening material, and the internal thread and the external thread are mutually screwed,
- the cylindrical surface and the externally threaded crest are in close contact with each other, that is, the lateral locking structure, thereby effectively preventing the lateral rotation of the fixed shaft between the inner and outer threaded members, that is, the cylinder can be realized. Effective anti-loose between the threaded member and the cylindrical externally threaded member.
- the invention has the beneficial effects that: the above-mentioned anti-loose cylindrical screw member can realize the cylindrical internal thread without the longitudinal expansion and contraction force of the screw member and the workpiece, compared with the existing wedge-shaped cylindrical screw member.
- the effective anti-loose between the piece and the cylindrical external thread is suitable for the anti-loose connection of various cylindrical screw parts such as rigid fastening connection and elastic connection, and the stability of anti-loose is stronger; the above-mentioned anti-loose cylindrical thread
- the structure is simple, easy to use, and can be scaled up by using existing processes and equipment.
- FIG. 1 is a schematic side elevational view, partly in section, of a screw coupling pair between a female thread and an external thread of a first embodiment of the present invention
- Figure 2 is a central longitudinal sectional side elevational view of the screw coupling pair of the internal thread and the external thread of the second embodiment of the present invention
- an anti-loose cylindrical screw member includes an internally threaded member 1 and an externally threaded member 2, wherein: the inner threaded member 1 is provided with a cylindrical internal thread 3 in the inner hole thereof, and the externally threaded member 2 is disposed on the screw a cylindrical external thread 4 having a cylindrical surface 6 parallel to the longitudinal central axis 5 of the internal thread 3, the inner diameter of the cylindrical surface 6 being greater than the smallest inner diameter of the internal thread 3; the internal thread 3 and the external thread 4 The surface is not covered with the anti-loose material; as shown in Fig. 1, after the internal thread 3 and the external thread 4 are screwed together, the cylindrical surface 6 and the crest of the external thread 4 are in close contact with each other.
- an anti-loose cylindrical screw member includes an internally threaded member 1 and an externally threaded member 2, wherein: the inner threaded member 1 is provided with a cylindrical internal thread 3 in the inner hole thereof, and the externally threaded member 2 is disposed on the screw a cylindrical external thread 4 having a cylindrical surface 6 parallel to the longitudinal central axis 5 of the internal thread 3, the inner diameter of the cylindrical surface 6 being larger than the minimum inner diameter of the internal thread 3; the internal thread 3 and the external thread The surface of the 4 and the cylindrical surface 6 are not covered with the anti-loose material; as shown in Fig. 2, after the internal thread 3 and the external thread 4 are screwed together, the cylindrical surface 6 and the crest of the external thread 4 are closely spaced each other. The structure of the contact.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/898,848 US20160115990A1 (en) | 2013-07-03 | 2014-04-15 | Anti-loosening cylindrical threaded part |
JP2016520249A JP2016524680A (ja) | 2013-07-03 | 2014-04-15 | 緩み止め円柱状ねじ部材 |
EP14818845.1A EP3018366A4 (en) | 2013-07-03 | 2014-04-15 | Anti-loosening cylindrical threaded part |
KR1020157035812A KR20160003314A (ko) | 2013-07-03 | 2014-04-15 | 풀림 방지 원기둥 나사산 부재 |
CA2915889A CA2915889A1 (en) | 2013-07-03 | 2014-04-15 | Anti-loosening cylindrical threaded part |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310275757.7 | 2013-07-03 | ||
CN2013102757577A CN103291730A (zh) | 2013-07-03 | 2013-07-03 | 一种防松动圆柱螺纹件 |
CN201320391527.2 | 2013-07-03 | ||
CN2013203915272U CN203335598U (zh) | 2013-07-03 | 2013-07-03 | 一种防松动圆柱螺纹件 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015000317A1 true WO2015000317A1 (zh) | 2015-01-08 |
Family
ID=52143073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/075345 WO2015000317A1 (zh) | 2013-07-03 | 2014-04-15 | 一种防松动圆柱螺纹件 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160115990A1 (zh) |
EP (1) | EP3018366A4 (zh) |
JP (1) | JP2016524680A (zh) |
KR (1) | KR20160003314A (zh) |
CA (1) | CA2915889A1 (zh) |
WO (1) | WO2015000317A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6529671B2 (ja) * | 2016-06-01 | 2019-06-12 | 三菱電機株式会社 | 緩み防止ナットおよび締結方法 |
US11553933B2 (en) | 2020-01-07 | 2023-01-17 | DePuy Synthes Products, Inc. | System and method for inserting an intramedullary nail |
CN112797237A (zh) * | 2021-03-10 | 2021-05-14 | 中氢(湖南)氢能装备有限公司 | 一种加氢站高压氢气防振防松连接装置 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2494889Y (zh) * | 2001-08-15 | 2002-06-12 | 张永华 | 全螺纹锁紧螺母 |
EP1391618A1 (de) * | 2002-08-23 | 2004-02-25 | HYDAC Electronic GmbH | Schraubensicherung |
CN201714814U (zh) * | 2010-07-01 | 2011-01-19 | 上海振高螺母有限公司 | 一种防松防脱螺母 |
CN102261365A (zh) * | 2010-04-22 | 2011-11-30 | (株)亚细亚Bolt | 有耐冲、耐振及紧固力加强结构的螺丝及螺丝式机械构件 |
JP2012112403A (ja) * | 2010-11-22 | 2012-06-14 | Topura Co Ltd | ゆるみ防止ねじ部品 |
CN103291727A (zh) * | 2013-07-03 | 2013-09-11 | 许松林 | 防松动圆柱螺纹件 |
CN103291730A (zh) * | 2013-07-03 | 2013-09-11 | 许松林 | 一种防松动圆柱螺纹件 |
CN103322007A (zh) * | 2013-05-24 | 2013-09-25 | 新疆德坤建材有限责任公司 | 一种防松动螺纹结构 |
CN203335598U (zh) * | 2013-07-03 | 2013-12-11 | 许松林 | 一种防松动圆柱螺纹件 |
CN203374616U (zh) * | 2013-07-03 | 2014-01-01 | 许松林 | 防松动圆柱螺纹件 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US271852A (en) * | 1883-02-06 | Duane hull | ||
US2842180A (en) * | 1950-02-23 | 1958-07-08 | Set Screw & Mfg Company | Self-locking threads with locking interference fit |
US4351626A (en) * | 1980-04-18 | 1982-09-28 | Holmes Horace D | Self-locking threaded fastener |
US4826377A (en) * | 1981-04-27 | 1989-05-02 | Holmes Horace D | Self-locking fastener and tool for making same |
US4547104A (en) * | 1981-04-27 | 1985-10-15 | Holmes Horace D | Tap |
US5738472A (en) * | 1995-10-18 | 1998-04-14 | Honeybee Robotics Inc. | Modified locking thread form for fastener |
MY157161A (en) * | 2007-08-13 | 2016-05-13 | Res Eng & Mfg | Thread locking/prevailing torque fastener and fastener assembly |
-
2014
- 2014-04-15 WO PCT/CN2014/075345 patent/WO2015000317A1/zh active Application Filing
- 2014-04-15 CA CA2915889A patent/CA2915889A1/en not_active Abandoned
- 2014-04-15 US US14/898,848 patent/US20160115990A1/en not_active Abandoned
- 2014-04-15 JP JP2016520249A patent/JP2016524680A/ja active Pending
- 2014-04-15 KR KR1020157035812A patent/KR20160003314A/ko not_active Application Discontinuation
- 2014-04-15 EP EP14818845.1A patent/EP3018366A4/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2494889Y (zh) * | 2001-08-15 | 2002-06-12 | 张永华 | 全螺纹锁紧螺母 |
EP1391618A1 (de) * | 2002-08-23 | 2004-02-25 | HYDAC Electronic GmbH | Schraubensicherung |
CN102261365A (zh) * | 2010-04-22 | 2011-11-30 | (株)亚细亚Bolt | 有耐冲、耐振及紧固力加强结构的螺丝及螺丝式机械构件 |
CN201714814U (zh) * | 2010-07-01 | 2011-01-19 | 上海振高螺母有限公司 | 一种防松防脱螺母 |
JP2012112403A (ja) * | 2010-11-22 | 2012-06-14 | Topura Co Ltd | ゆるみ防止ねじ部品 |
CN103322007A (zh) * | 2013-05-24 | 2013-09-25 | 新疆德坤建材有限责任公司 | 一种防松动螺纹结构 |
CN103291727A (zh) * | 2013-07-03 | 2013-09-11 | 许松林 | 防松动圆柱螺纹件 |
CN103291730A (zh) * | 2013-07-03 | 2013-09-11 | 许松林 | 一种防松动圆柱螺纹件 |
CN203335598U (zh) * | 2013-07-03 | 2013-12-11 | 许松林 | 一种防松动圆柱螺纹件 |
CN203374616U (zh) * | 2013-07-03 | 2014-01-01 | 许松林 | 防松动圆柱螺纹件 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3018366A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20160003314A (ko) | 2016-01-08 |
EP3018366A4 (en) | 2017-02-22 |
EP3018366A1 (en) | 2016-05-11 |
CA2915889A1 (en) | 2015-01-08 |
JP2016524680A (ja) | 2016-08-18 |
US20160115990A1 (en) | 2016-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2015000318A1 (zh) | 防松动螺纹件 | |
WO2017088787A1 (zh) | 锥形内螺纹与螺纹柱连接结构 | |
WO2017088788A1 (zh) | 锥形外螺纹与螺纹孔连接结构 | |
JP2016524681A5 (zh) | ||
WO2015000317A1 (zh) | 一种防松动圆柱螺纹件 | |
WO2017088785A1 (zh) | 锥形螺纹连接副 | |
WO2015000316A1 (zh) | 防松动圆柱螺纹件 | |
CN203374616U (zh) | 防松动圆柱螺纹件 | |
JP2016524680A5 (zh) | ||
US20210003164A1 (en) | Olive-like and dumbbell-like asymmetrical bidirectional tapered thread connection pairs | |
US20210025432A1 (en) | Connection structure of bolt and nut having dumbell-like shaped symmetrical bidirectional tapered thread | |
US20210010518A1 (en) | Connection pair for symmetric bidirectional tapered thread in olive-like shape | |
WO2019205957A1 (zh) | 防止做松动方向自动滚动运动的双螺母螺纹联接 | |
JP2016522374A5 (zh) | ||
US20210010505A1 (en) | Connection structure of bolt and nut of asymmetric bidirectional tapered thread in olive-like shape | |
US20210010515A1 (en) | Connection structure of olive-shape bidirectional tapered external thread with greater left taper and smaller right taper and traditional thread | |
US20210010526A1 (en) | Connection structure of external thread of symmetric bidirectional tapered thread in olive-like shape and traditional screw thread | |
US20210025429A1 (en) | Connection structure of internal thread of symmetric bidirectional tapered thread in olive-like shape and traditional screw thread | |
CN213628386U (zh) | 类橄榄状对称双向锥形螺纹的螺栓与螺母连接结构 | |
US20210010519A1 (en) | Connection structure of internal thread of asymmetric bidirectional tapered thread in olive-like shape and traditional screw thread | |
CN214331123U (zh) | 类橄榄状非对称双向锥形螺纹内螺纹与传统螺纹连接结构 | |
CN213744403U (zh) | 类橄榄状非对称双向锥形螺纹的螺栓与螺母连接结构 | |
CN112983959A (zh) | 一种旋紧过程中锁紧的螺母 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14818845 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14898848 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2915889 Country of ref document: CA Ref document number: 20157035812 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2016520249 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014818845 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |