WO2019184298A1 - Locknut, locking mechanism, and locking assembly - Google Patents

Locknut, locking mechanism, and locking assembly Download PDF

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Publication number
WO2019184298A1
WO2019184298A1 PCT/CN2018/109788 CN2018109788W WO2019184298A1 WO 2019184298 A1 WO2019184298 A1 WO 2019184298A1 CN 2018109788 W CN2018109788 W CN 2018109788W WO 2019184298 A1 WO2019184298 A1 WO 2019184298A1
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WO
WIPO (PCT)
Prior art keywords
nut
locknut
bolt
loose
workpiece
Prior art date
Application number
PCT/CN2018/109788
Other languages
French (fr)
Chinese (zh)
Inventor
毕书鹏
Original Assignee
毕书鹏
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Publication date
Application filed by 毕书鹏 filed Critical 毕书鹏
Publication of WO2019184298A1 publication Critical patent/WO2019184298A1/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
    • 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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/122—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts foreseen with mating surfaces inclined, i.e. not normal, to the bolt axis
    • 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
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
    • F16B39/2825—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts causing the bolt to tilt
    • 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
    • F16B39/284—Locking by means of elastic deformation
    • 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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread

Definitions

  • the invention relates to the technical field of mechanical anti-loosening devices, in particular to a locknut, a anti-loose mechanism and a anti-loose component.
  • the existing nuts have good fastening properties.
  • the anti-looseness is not good.
  • the anti-loose performance is the best. It is currently at the highest level in the world.
  • the nut with the wedge head and the concave nut are affected by the metal ductility and fatigue, the processing process is cumbersome, the requirements on materials and tooling are relatively high, and the cost is too high.
  • the present invention ensures the same anti-loose performance as Hardlock. The cost is low, the process is simple, and the material requirements are not high.
  • the anti-loose performance is poor, the processing technology of the nut is cumbersome, and the technical requirements for materials and tooling are high.
  • the lock nut provided by the present invention comprises a first nut and a second nut; the first nut and the second nut are used for fastening on the same bolt at the same time; one of the contact faces of the first nut and the second nut is inclined
  • the surface of the first nut away from the second nut is a horizontal plane, and the horizontal plane is used to abut the external workpiece; when the first nut and the second nut are coaxially disposed and abut, the first nut and the second nut exist a slit; when the second nut moves in the direction of the first nut, the slit gradually decreases.
  • first nut is welded to the outer workpiece.
  • the present invention further provides a anti-loose mechanism, the anti-loose mechanism includes a third nut, a fourth nut and a gasket; the gasket is disposed between the third nut and the fourth nut, and the third nut and the fourth The nut and the gasket are used for fastening to the same fixing bolt at the same time; the end faces of the third nut and the fourth nut are both horizontal planes; one end surface of the gasket is a horizontal plane, and the other end surface is an inclined surface.
  • the present invention also provides a anti-loose assembly, the anti-loose assembly includes a bolt and a locknut; and the bolt is coupled to the first nut and the second nut.
  • one end of the bolt away from the locknut is fixedly connected to the external workpiece.
  • the lock nut provided by the present invention, in the installation process, the user firstly puts the first nut and the second nut on the bolts on the workpiece to be fastened, and sets the inclined surface on the first nut and the second nut. At the abutment, there is a gap when the first nut and the second nut are coaxially disposed. The user continues to twist the second nut in the direction of the first nut, so that the gap between the first nut and the second nut is continuously reduced. At this time, the first nut and the second nut generate an eccentric amount, thereby preventing the loosening nut from loosening.
  • the external workpiece When the external workpiece is vibrated during use, the external workpiece generates a force F1 toward the locknut. Accordingly, the first nut generates the same force F2 as the direction of F1. Because of the eccentric amount, the second nut is generated and the F1 direction is generated. Opposite force F3; when F1 When F2 is enhanced, F3 is enhanced, and the amount of eccentricity between the first nut and the second nut is increased; the gap between the first nut and the second nut is gradually decreased, and the first nut and the second nut are close to each other.
  • the two end faces gradually increase the contact area, which increases the friction between the two faces; at the same time, the friction between the bolt and the lock nut also increases; as the vibration force of the external workpiece increases, the second nut gradually It tends to be perpendicular to the central axis, increasing the amount of eccentricity, thereby avoiding the loosening of the locknut.
  • the anti-loose nut On the basis of ensuring the anti-loose effect, the anti-loose nut has simple processing technology, low requirements on materials and tooling, low processing cost, no influence on metal ductility and fatigue, and is more suitable for the needs of consumers.
  • FIG. 1 is a schematic structural view of a locknut according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a anti-loose component in a first state according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a anti-loose component in a second state according to an embodiment of the present invention.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3.
  • Icons 1-first nut; 2-second nut; 3-external workpiece; 4-bolt; 5-slit; 6-void; 7-forced zone.
  • FIG. 1 is a schematic structural view of a locknut according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a anti-loose component in a second state according to an embodiment of the present invention;
  • FIG. Figure 3 is a cross-sectional view at A-A. As shown in FIG. 1 to FIG.
  • the lock nut provided in this embodiment includes a first nut 1 and a second nut 2;
  • the first nut 1 and the second nut 2 are used for fastening to the same bolt 4 at the same time; one of the contact faces of the first nut 1 and the second nut 2 is an inclined surface; the first nut 1 is away from the second nut 2
  • the end surface is a horizontal plane, and the horizontal plane is used for abutting against the external workpiece 3; when the first nut 1 and the second nut 2 are coaxially disposed and abutted, there is a gap 5 between the first nut 1 and the second nut 2;
  • the slit 5 gradually decreases.
  • the force receiving zone 7 exists between the first nut 1 and the second nut 2, between the first nut 1 and the bolt 3, and between the second nut 2 and the bolt 3. At this time, a gap 6 exists between the first nut 1 and the bolt 3 and between the second nut 2 and the bolt 3.
  • the lock nut provided in this embodiment, the user firstly wears the first nut 1 and the second nut 2 in the installation process.
  • the inclined surface is disposed at the abutment of the first nut 1 and the second nut 2, and the slit 5 is present when the first nut 1 and the second nut 2 are coaxially disposed.
  • the user continues to twist the second nut 2 in the direction of the first nut 1, so that the gap between the first nut 1 and the second nut 2 is continuously reduced, and the first nut 1 and the second nut 2 are eccentric, thereby avoiding The locknut is loose.
  • the external force is generated toward the workpiece 3 locknut F 1, corresponding to, identical to the first nut F. 1 generates a force in the direction F 2, because of the amount of eccentricity, the The second nut 2 generates a force F 3 opposite to the direction F 1 ; when F 1 and F 2 are enhanced, F 3 is increased, and the amount of eccentricity between the first nut 1 and the second nut 2 is increased; the first nut 1
  • the gap 5 between the second nut 2 and the second nut 2 gradually decreases, and the two end faces of the first nut 1 and the second nut 2 gradually increase the contact area, thereby increasing the friction between the two faces;
  • the frictional force with the locknut is also increased; as the vibration force of the outer workpiece 3 increases, the second nut 2 gradually tends to be perpendicular to the central axis, increasing the amount of eccentricity, thereby avoiding the loosening of the locknut.
  • the locknut has simple processing technology, low requirements on materials and tooling, low processing cost, no influence on metal ductility and fatigue, and is more suitable for consumers on the basis of ensuring the anti-loose effect. Demand.
  • the first nut 1 is welded to the outer workpiece 3.
  • one side of the contact end surface of the second nut 2 adjacent to the first nut 1 is an inclined surface, and the remaining three sides are horizontal planes.
  • the first nut 1 is welded to the outer workpiece 3, and after the user screws the bolt 4 into the first nut 1, the second nut 2 is engaged with the bolt 4.
  • the embodiment of the present invention further provides a anti-loose mechanism, the anti-loose mechanism includes a third nut, a fourth nut and a gasket; the gasket is disposed on the third nut and the fourth nut And the third nut, the fourth nut and the gasket are used for fastening to the same fixing bolt at the same time; the end faces of the third nut and the fourth nut are both horizontal planes; one end surface of the gasket is a horizontal plane, The other end face is an inclined surface.
  • the user sequentially wears the third nut, the gasket, and the fourth nut on the fixing bolt on the workpiece to be fastened, and the inclined surface of the gasket is disposed on the third nut close to the fourth.
  • the user continues to twist the fourth nut in the direction of the third nut, so that the gap 5 is continuously reduced. At this time, the three produce an eccentric amount, thereby avoiding looseness.
  • the amount of eccentricity between the three increases, the gap 5 gradually decreases, and the friction between the inclined surface and the horizontal plane increases. As the vibration force of the external workpiece 3 increases, the amount of eccentricity increases.
  • the embodiment of the present invention further provides a anti-loose component, the anti-loose component includes a bolt 4 and a locknut; the bolt 4 and the first nut 1 is connected to the second nut 2.
  • one end of the bolt 4 away from the locknut can be welded to the outer workpiece 3.
  • the anti-loose component includes a bolt 4 and a locknut; the effect of the locknut is the same as that of the above-mentioned locknut, and details are not described herein.

Abstract

A locknut comprises a first nut (1) and a second nut (2). The first nut (1) and the second nut (2) are simultaneously fastened to the same bolt (4). One of the contact faces of the first nut (1) and the second nut (2) is an inclined plane; a horizontal end face of the first nut (1) away from the second nut (2) abuts against external workpieces (3); when the first nut (1) and the second nut (2) are coaxially provided and abutted to each other, an angled gap (5) exists between the first nut (1) and the second nut (2), and then the second nut (2) continues to be twisted towards the direction of the first nut (1), so that there is an eccentricity between the two nuts as the gap becomes smaller, and the eccentricity increases as the vibration force of the external workpieces increases, thereby avoiding loosening of the locknut. On the basis of ensuring the anti-loose effect, the locknut has a simple processing process, low requirements on materials and tooling, and is not affected by metal ductility and fatigue, and is more suitable for the needs of consumers.

Description

防松螺母及防松机构及防松组件  Lock nut and anti-loose mechanism and anti-loose component 技术领域Technical field
本发明涉及机械防松装置技术领域，尤其是涉及一种防松螺母及防松机构及防松组件。 The invention relates to the technical field of mechanical anti-loosening devices, in particular to a locknut, a anti-loose mechanism and a anti-loose component.
背景技术Background technique
目前，现有的螺母紧固性好。但是防松动性不好。在零部件的长时间使用过程中，出现螺母与螺栓不同的松动的现象。只有日本哈德洛克工业株式会社所生产了永不松动螺母。防松动的性能最为优异。目前处在世界最高水平。但是这种加楔头的螺母，凹螺母受金属延展性和疲劳性影响，加工工艺繁琐，对材料和工装的要求比较高，成本过高。本发明在保证了与哈德洛克相同的防松动性能外。成本低，工艺简单，对材料要求不高。 At present, the existing nuts have good fastening properties. However, the anti-looseness is not good. During the long-term use of parts, the loosening of the nut and the bolt occurs. Only the Japanese Hadlock Industrial Co., Ltd. produced a never loose nut. The anti-loose performance is the best. It is currently at the highest level in the world. However, the nut with the wedge head and the concave nut are affected by the metal ductility and fatigue, the processing process is cumbersome, the requirements on materials and tooling are relatively high, and the cost is too high. The present invention ensures the same anti-loose performance as Hardlock. The cost is low, the process is simple, and the material requirements are not high.
技术问题technical problem
防松动性能差， 螺母的加工工艺繁琐，对材料和工装的要求高的技术问题 。 The anti-loose performance is poor, the processing technology of the nut is cumbersome, and the technical requirements for materials and tooling are high.
技术方案Technical solutions
本发明提供的防松螺母，包括第一螺母和第二螺母；第一螺母和第二螺母用于同时紧固在同一个螺栓上；第一螺母和第二螺母的接触面中有一个为倾斜面；第一螺母远离第二螺母的端面为水平面，且水平面用于与外部工件抵接；当第一螺母和第二螺母同轴设置并抵接时，第一螺母与第二螺母之间存在缝隙；当第二螺母向第一螺母的方向移动时，缝隙逐渐减小。The lock nut provided by the present invention comprises a first nut and a second nut; the first nut and the second nut are used for fastening on the same bolt at the same time; one of the contact faces of the first nut and the second nut is inclined The surface of the first nut away from the second nut is a horizontal plane, and the horizontal plane is used to abut the external workpiece; when the first nut and the second nut are coaxially disposed and abut, the first nut and the second nut exist a slit; when the second nut moves in the direction of the first nut, the slit gradually decreases.
进一步的，第一螺母与外部工件焊接。Further, the first nut is welded to the outer workpiece.
进一步的，本发明还提供了一种防松机构，防松机构包括第三螺母、第四螺母以及垫片；垫片设置在第三螺母和第四螺母之间，且第三螺母、第四螺母以及垫片用于同时紧固在同一个固定螺栓上；第三螺母和第四螺母相靠近的端面均为水平面；垫片的其中一个端面为水平面，另一个端面为倾斜面。Further, the present invention further provides a anti-loose mechanism, the anti-loose mechanism includes a third nut, a fourth nut and a gasket; the gasket is disposed between the third nut and the fourth nut, and the third nut and the fourth The nut and the gasket are used for fastening to the same fixing bolt at the same time; the end faces of the third nut and the fourth nut are both horizontal planes; one end surface of the gasket is a horizontal plane, and the other end surface is an inclined surface.
进一步的，本发明还提供了一种防松组件，防松组件包括螺栓和防松螺母；螺栓与第一螺母和第二螺母连接。Further, the present invention also provides a anti-loose assembly, the anti-loose assembly includes a bolt and a locknut; and the bolt is coupled to the first nut and the second nut.
进一步的，螺栓远离防松螺母的一端与外部工件固定连接。Further, one end of the bolt away from the locknut is fixedly connected to the external workpiece.
本发明提供的防松螺母，在安装过程中，使用者先将第一螺母和第二螺母依次穿在需要紧固的工件上的螺栓上，将倾斜面设置在第一螺母和第二螺母的抵接处，第一螺母和第二螺母同轴设置时存在缝隙。使用者继续向第一螺母的方向拧动第二螺母，令第一螺母和第二螺母缝隙不断减小，此时第一螺母和第二螺母产生偏心量，进而避免防松螺母松动。The lock nut provided by the present invention, in the installation process, the user firstly puts the first nut and the second nut on the bolts on the workpiece to be fastened, and sets the inclined surface on the first nut and the second nut. At the abutment, there is a gap when the first nut and the second nut are coaxially disposed. The user continues to twist the second nut in the direction of the first nut, so that the gap between the first nut and the second nut is continuously reduced. At this time, the first nut and the second nut generate an eccentric amount, thereby preventing the loosening nut from loosening.
当外部工件在使用过程中受到振动时，外部工件产生朝向防松螺母的力F1，相应的，第一螺母产生与F1方向相同的力F2，因为偏心量的存在，第二螺母产生与F1方向相反的力F3；当F1 和F2增强时，F3增强，此时第一螺母和第二螺母之间的偏心量增大；第一螺母和第二螺母之间的缝隙逐渐减小，第一螺母和第二螺母相靠近的两个端面逐渐增大接触面积，增大了二者之间面的摩擦力；同时螺栓与防松螺母之间的摩擦力也在增大；随着外部工件的振动力加大，第二螺母逐渐趋向于与中心轴线垂直，加大偏心量，从而避免了防松螺母的松动。When the external workpiece is vibrated during use, the external workpiece generates a force F1 toward the locknut. Accordingly, the first nut generates the same force F2 as the direction of F1. Because of the eccentric amount, the second nut is generated and the F1 direction is generated. Opposite force F3; when F1 When F2 is enhanced, F3 is enhanced, and the amount of eccentricity between the first nut and the second nut is increased; the gap between the first nut and the second nut is gradually decreased, and the first nut and the second nut are close to each other. The two end faces gradually increase the contact area, which increases the friction between the two faces; at the same time, the friction between the bolt and the lock nut also increases; as the vibration force of the external workpiece increases, the second nut gradually It tends to be perpendicular to the central axis, increasing the amount of eccentricity, thereby avoiding the loosening of the locknut.
有益效果Beneficial effect
该防松螺母在保证防松效果的基础上，加工工艺简单，对材料和工装的要求较低，加工成本较低，不受金属延展性和疲劳性的影响，更加适应消费者的需求。 On the basis of ensuring the anti-loose effect, the anti-loose nut has simple processing technology, low requirements on materials and tooling, low processing cost, no influence on metal ductility and fatigue, and is more suitable for the needs of consumers.
附图Drawing
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，能够更加详细的了解本发明的防松动原理：In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the specific embodiments or the descriptions of the prior art will be briefly described below, and the present invention can be more fully understood. Anti-loose principle:
图1为本发明实施例提供的防松螺母的结构示意图；1 is a schematic structural view of a locknut according to an embodiment of the present invention;
图2为本发明实施例提供的防松组件第一状态下的结构示意图；2 is a schematic structural view of a anti-loose component in a first state according to an embodiment of the present invention;
图3为本发明实施例提供的防松组件第二状态下的结构示意图；3 is a schematic structural view of a anti-loose component in a second state according to an embodiment of the present invention;
图4为图3中A-A处的剖视图。Figure 4 is a cross-sectional view taken along line A-A of Figure 3.
图标：1-第一螺母；2-第二螺母；3-外部工件；4-螺栓；5-缝隙；6-空隙；7-受力区。Icons: 1-first nut; 2-second nut; 3-external workpiece; 4-bolt; 5-slit; 6-void; 7-forced zone.
最佳实施例Best embodiment
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 The technical solutions of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
在本发明的描述中，需要说明的是， 如出现 术语'中心'、'上'、'下'、'左'、'右'、'竖直'、'水平'、'内'、'外'等 ，其所 指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外， 如出现 术语'第一'、'第二'、'第三'仅用于描述目的，而不能理解为指示或暗示相对重要性。 In the description of the present invention, it should be noted that if The terms 'center', 'upper', 'lower', 'left', 'right', 'vertical', 'horizontal', 'inside', 'outside', etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. In addition, The terms 'first', 'second', 'third' are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语'安装'、'相连'、'连接'应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。 In the description of the present invention, it should be noted that the terms 'installation', 'connected', and 'connected' should be understood broadly, for example, either as a fixed connection or as a detachable, unless otherwise explicitly stated and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
图1为本发明实施例提供的 防松螺母的结构示意图 ；图2为本发明实施例提供的 防松组件第一状态下的结构示意图 ；图 3 为本发明实施例提供的 防松组件第二状态下的结构示意图 ；图 4 为 图3中A-A处的剖视图。如图1至图4所示，本实施例提供的防松螺母 ，包括 第一螺母1和第二螺母2 ； 第一螺母1和第二螺母2用于同时紧固在同一个螺栓4上；第一螺母1和第二螺母2的接触面中有一个为倾斜面；第一螺母1远离第二螺母2的端面为水平面，且水平面用于与外部工件3抵接；当第一螺母1和第二螺母2同轴设置并抵接时，第一螺母1与第二螺母2之间存在缝隙5；当第二螺母2向第一螺母1的方向移动时，缝隙5逐渐减小。 1 is a schematic structural view of a locknut according to an embodiment of the present invention; FIG. 2 is a schematic diagram of an embodiment of the present invention. FIG. 3 is a schematic structural view of a anti-loose component in a second state according to an embodiment of the present invention; FIG. Figure 3 is a cross-sectional view at A-A. As shown in FIG. 1 to FIG. 4, the lock nut provided in this embodiment includes a first nut 1 and a second nut 2; The first nut 1 and the second nut 2 are used for fastening to the same bolt 4 at the same time; one of the contact faces of the first nut 1 and the second nut 2 is an inclined surface; the first nut 1 is away from the second nut 2 The end surface is a horizontal plane, and the horizontal plane is used for abutting against the external workpiece 3; when the first nut 1 and the second nut 2 are coaxially disposed and abutted, there is a gap 5 between the first nut 1 and the second nut 2; When the second nut 2 moves in the direction of the first nut 1, the slit 5 gradually decreases.
其中，当产生偏心量时，第一螺母1和第二螺母2之间、第一螺母1和螺栓3之间以及第二螺母2与螺栓3之间均存在受力区7。此时，第一螺母1和螺栓3之间、第二螺母2与螺栓3之间存在空隙6。 Wherein, when the eccentric amount is generated, the force receiving zone 7 exists between the first nut 1 and the second nut 2, between the first nut 1 and the bolt 3, and between the second nut 2 and the bolt 3. At this time, a gap 6 exists between the first nut 1 and the bolt 3 and between the second nut 2 and the bolt 3.
本实施例提供的防松螺母 ， 在安装过程中，使用者先将第一螺母1和第二螺母2依次穿在 需要紧固的工件上的螺栓4上，将倾斜面设置在第一螺母1和第二螺母2的抵接处，第一螺母1和第二螺母2同轴设置时存在缝隙5。使用者继续向第一螺母1的方向拧动第二螺母2，令第一螺母1和第二螺母2缝隙5不断减小，此时第一螺母1和第二螺母2产生偏心量，进而避免防松螺母松动。 The lock nut provided in this embodiment, the user firstly wears the first nut 1 and the second nut 2 in the installation process. On the bolt 4 on the workpiece to be fastened, the inclined surface is disposed at the abutment of the first nut 1 and the second nut 2, and the slit 5 is present when the first nut 1 and the second nut 2 are coaxially disposed. The user continues to twist the second nut 2 in the direction of the first nut 1, so that the gap between the first nut 1 and the second nut 2 is continuously reduced, and the first nut 1 and the second nut 2 are eccentric, thereby avoiding The locknut is loose.
当外部工件3在使用过程中受到振动时，外部工件3产生朝向防松螺母的力F 1 ，相应的，第一螺母1产生与F 1 方向相同的力F 2 ，因为偏心量的存在，第二螺母2产生与F 1 方向相反的力F 3 ；当F 1 和F 2 增强时，F 3 增强，此时第一螺母1和第二螺母2之间的偏心量增大；第一螺母1和第二螺母2之间的缝隙5逐渐减小，第一螺母1和第二螺母2相靠近的两个端面逐渐增大接触面积，增大了二者之间面的摩擦力；同时螺栓4与防松螺母之间的摩擦力也在增大；随着外部工件3的振动力加大，第二螺母2逐渐趋向于与中心轴线垂直，加大偏心量，从而避免了防松螺母的松动。When the external workpiece 3 is subjected to vibrations during use, the external force is generated toward the workpiece 3 locknut F 1, corresponding to, identical to the first nut F. 1 generates a force in the direction F 2, because of the amount of eccentricity, the The second nut 2 generates a force F 3 opposite to the direction F 1 ; when F 1 and F 2 are enhanced, F 3 is increased, and the amount of eccentricity between the first nut 1 and the second nut 2 is increased; the first nut 1 The gap 5 between the second nut 2 and the second nut 2 gradually decreases, and the two end faces of the first nut 1 and the second nut 2 gradually increase the contact area, thereby increasing the friction between the two faces; The frictional force with the locknut is also increased; as the vibration force of the outer workpiece 3 increases, the second nut 2 gradually tends to be perpendicular to the central axis, increasing the amount of eccentricity, thereby avoiding the loosening of the locknut.
由上可知，该防松螺母在保证防松效果的基础上，加工工艺简单，对材料和工装的要求较低，加工成本较低，不受金属延展性和疲劳性的影响，更加适应消费者的需求。 It can be seen from the above that the locknut has simple processing technology, low requirements on materials and tooling, low processing cost, no influence on metal ductility and fatigue, and is more suitable for consumers on the basis of ensuring the anti-loose effect. Demand.
实施例Example
在上述实施例的基础上，进一步的，第一螺母1与外部工件3焊接。Further, based on the above embodiment, further, the first nut 1 is welded to the outer workpiece 3.
其中，第二螺母2靠近第一螺母1的接触端面其中一面为倾斜面，剩余三面为水平面。Wherein, one side of the contact end surface of the second nut 2 adjacent to the first nut 1 is an inclined surface, and the remaining three sides are horizontal planes.
本实施例中，在使用过程中，第一螺母1与外部工件3焊接，使用者将螺栓4旋入第一螺母1后，在令第二螺母2与螺栓4配合。In this embodiment, during use, the first nut 1 is welded to the outer workpiece 3, and after the user screws the bolt 4 into the first nut 1, the second nut 2 is engaged with the bolt 4.
在上述实施例的基础上，进一步的，本发明实施例还提供了一种防松机构，防松机构包括第三螺母、第四螺母以及垫片；垫片设置在第三螺母和第四螺母之间，且第三螺母、第四螺母以及垫片用于同时紧固在同一个固定螺栓上；第三螺母和第四螺母相靠近的端面均为水平面；垫片的其中一个端面为水平面，另一个端面为倾斜面。 On the basis of the above embodiments, further, the embodiment of the present invention further provides a anti-loose mechanism, the anti-loose mechanism includes a third nut, a fourth nut and a gasket; the gasket is disposed on the third nut and the fourth nut And the third nut, the fourth nut and the gasket are used for fastening to the same fixing bolt at the same time; the end faces of the third nut and the fourth nut are both horizontal planes; one end surface of the gasket is a horizontal plane, The other end face is an inclined surface.
本实施例中，在安装过程中，使用者将第三螺母、垫片以及第四螺母依次穿在需要紧固的工件上的固定螺栓上，垫片的倾斜面设置在第三螺母靠近第四螺母的端面的抵接处，或者第四螺母靠近第三螺母的端面的抵接处，当三者同轴设置时存在缝隙5。使用者继续向第三螺母的方向拧动第四螺母，令该缝隙5不断减小。此时三者产生偏心量，进而避免松动。当外部工件3在使用过程中受到振动时，三者之间的偏心量增大，缝隙5逐渐减小，倾斜面与水平面之间的摩擦力增大。随着外部工件3的振动力加大，偏心量加大。In this embodiment, during the installation process, the user sequentially wears the third nut, the gasket, and the fourth nut on the fixing bolt on the workpiece to be fastened, and the inclined surface of the gasket is disposed on the third nut close to the fourth. The abutment of the end face of the nut, or the abutment of the fourth nut close to the end face of the third nut, there is a gap 5 when the three are coaxially disposed. The user continues to twist the fourth nut in the direction of the third nut, so that the gap 5 is continuously reduced. At this time, the three produce an eccentric amount, thereby avoiding looseness. When the external workpiece 3 is subjected to vibration during use, the amount of eccentricity between the three increases, the gap 5 gradually decreases, and the friction between the inclined surface and the horizontal plane increases. As the vibration force of the external workpiece 3 increases, the amount of eccentricity increases.
如图2至图4所示，在上述实施例的基础上，进一步的，本发明实施例还提供了一种防松组件，防松组件包括螺栓4和防松螺母；螺栓4与第一螺母1和第二螺母2连接。As shown in FIG. 2 to FIG. 4, based on the above embodiments, further, the embodiment of the present invention further provides a anti-loose component, the anti-loose component includes a bolt 4 and a locknut; the bolt 4 and the first nut 1 is connected to the second nut 2.
其中，螺栓4远离防松螺母的一端与外部工件3固定连接。The end of the bolt 4 away from the locknut is fixedly connected to the external workpiece 3.
进一步的，螺栓4远离防松螺母的一端可以与外部工件3焊接。Further, one end of the bolt 4 away from the locknut can be welded to the outer workpiece 3.
本实施例中，防松组件包括螺栓4和防松螺母；防松螺母的效果与上述防松螺母的效果相同，不再赘述。In this embodiment, the anti-loose component includes a bolt 4 and a locknut; the effect of the locknut is the same as that of the above-mentioned locknut, and details are not described herein.

Claims (5)

  1. 一种防松螺母，其特征在于，包括：第一螺母和第二螺母； 所述第一螺母和所述第二螺母用于同时紧固在同一个螺栓上；所述第一螺母和所述第二螺母的接触面中有一个为倾斜面；所述第一螺母远离所述第二螺母的端面为水平面，且所述水平面用于与外部工件抵接；当所述第一螺母和所述第二螺母同轴设置并抵接时，所述第一螺母与所述第二螺母之间存在缝隙；当所述第二螺母向所述第一螺母的方向移动时，所述缝隙逐渐减小。A lock nut, comprising: a first nut and a second nut; The first nut and the second nut are used for fastening to the same bolt at the same time; one of the contact faces of the first nut and the second nut is an inclined surface; the first nut is away from the The end surface of the second nut is a horizontal plane, and the horizontal plane is for abutting with an external workpiece; when the first nut and the second nut are coaxially disposed and abut, the first nut and the first nut There is a gap between the two nuts; when the second nut moves in the direction of the first nut, the gap gradually decreases.
  2. 根据权利要求1所述的防松螺母，其特征在于，所述第一螺母与所述外部工件焊接。The locknut of claim 1 wherein said first nut is welded to said outer workpiece.
  3. 一种防松机构，其特征在于，包括第三螺母、第四螺母以及垫片； 所述垫片设置在所述第三螺母和所述第四螺母之间，且所述第三螺母、所述第四螺母以及所述垫片用于同时紧固在同一个固定螺栓上；所述第三螺母和所述第四螺母相靠近的端面均为水平面；所述垫片的其中一个端面为水平面，另一个端面为倾斜面。A anti-loose mechanism, comprising: a third nut, a fourth nut and a gasket; The spacer is disposed between the third nut and the fourth nut, and the third nut, the fourth nut, and the spacer are used for fastening to the same fixing bolt at the same time; The end faces of the third nut and the fourth nut are all horizontal planes; one end surface of the gasket is a horizontal plane, and the other end surface is an inclined surface.
  4. 一种防松组件，其特征在于，包括螺栓和如权利要求1-2任一项所述的防松螺母； 所述螺栓与所述第一螺母和所述第二螺母连接。A lock preventing assembly, comprising: a bolt and the locknut according to any one of claims 1-2; The bolt is coupled to the first nut and the second nut.
  5. 根据权利要求4所述的防松组件，其特征在于，所述螺栓远离所述防松螺母的一端与所述外部工件固定连接。The anti-loose assembly according to claim 4, wherein one end of the bolt away from the locknut is fixedly coupled to the outer workpiece.
PCT/CN2018/109788 2018-03-27 2018-10-11 Locknut, locking mechanism, and locking assembly WO2019184298A1 (en)

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CN201810260933.2A CN108253005A (en) 2018-03-27 2018-03-27 Stop nut and locking gear and retention device

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CN108953352B (en) * 2018-09-30 2020-11-17 福建省晋江市励精汽配有限公司 Track locknut
CN109630532A (en) * 2018-12-26 2019-04-16 黄万强 A kind of anti-loosening lock solid structure
CN110285131A (en) * 2019-07-16 2019-09-27 吴希春 A kind of general self-locking fastening nut and fastening assembly
CN110439909A (en) * 2019-09-05 2019-11-12 董古 A kind of screw of never becoming loose
CN113124037A (en) * 2021-04-16 2021-07-16 时靖 Normal balance locknut and locking method thereof
CN114576254B (en) * 2022-03-01 2023-12-15 深圳市森峄精密五金有限公司 Lock nut

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