CN115111246A - 夹紧螺栓和相关组件 - Google Patents

夹紧螺栓和相关组件 Download PDF

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CN115111246A
CN115111246A CN202210258175.7A CN202210258175A CN115111246A CN 115111246 A CN115111246 A CN 115111246A CN 202210258175 A CN202210258175 A CN 202210258175A CN 115111246 A CN115111246 A CN 115111246A
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bolt
washer
clamping bolt
clamping
parts
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J.基钦
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Pilgrim International Ltd
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Pilgrim International Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
    • 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
    • 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
    • F16B5/0275—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 the screw-threaded element having at least two axially separated threaded portions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
    • 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
    • F16B35/005—Set screws; Locking means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/041—Releasable devices
    • F16B37/042—Releasable devices locking by rotation
    • 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
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/045—Devices for fastening nuts to surfaces, e.g. sheets, plates specially adapted for fastening in channels, e.g. sliding bolts, channel nuts
    • F16B37/046—Devices for fastening nuts to surfaces, e.g. sheets, plates specially adapted for fastening in channels, e.g. sliding bolts, channel nuts with resilient means for urging the nut inside the channel
    • 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
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F16B4/004—Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment
    • 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
    • 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
    • F16B5/0258—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 using resiliently deformable sleeves, grommets or inserts
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
    • F16B7/025—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts with the expansion of an element inside the tubes due to axial movement towards a wedge or conical element
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/149—Telescoping systems locking in intermediate non-discrete positions with a sleeve or ring having a tapered or conical surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts
    • 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
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the 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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other

Abstract

本公开内容提出了一种夹紧螺栓(1),其包括螺栓(2)和两个螺母(3，4),每个螺母拧在螺栓的一端上。它还包括两个垫圈(5，6)，其围绕螺栓安装并轴向定位在两个螺母之间。

Description

夹紧螺栓和相关组件
技术领域
本发明涉及夹紧螺栓，更具体地说，涉及用于组装至少两个涡轮部件的夹紧螺栓。
背景技术
通常，两个涡轮部件通过间隙配合螺栓连接在一起。
当高扭矩通过联轴器传递时，联轴器可能会滑动，从而使间隙配合螺栓变得卡住，并且不容易松开。
为了避免这种情况，间隙配合螺栓联轴器的扭矩容量很小。
一种已知的提高扭矩能力的解决方案是使用膨胀螺栓来连接两个涡轮部件。
膨胀螺栓在内部膨胀，并填充部件的连接孔，以防止滑动。
然而，使用膨胀螺栓需要非常紧的连接孔公差才能工作，并且成本很高。
发明内容
需要避免至少一些前述的缺点，特别是通过提出一种易于实施的夹紧螺栓。
根据一个方面，提出了一种包括螺栓和两个螺母的夹紧螺栓，每个螺母拧在螺栓的一端上。
它还包括围绕螺栓安装并轴向定位在两个螺母之间的两个垫圈。
垫圈支撑螺栓，并且螺栓不能接触安装它的联轴器。
由于螺栓没有与垫圈物理连接，也没有与涡轮部件接触，因此它总是可以被放松和拆除。
夹紧螺栓的扭矩容量增加，并且比前述间隙配合螺栓连接具有更大的扭矩容量。
夹紧螺栓比膨胀螺栓更简单、更容易使用，公差也大大放宽。
有利的是，每个垫圈包括围绕螺栓安装的轴向部分。优选地，轴向部分延伸到连接孔中1-50毫米，更优选10-20毫米。
有利的是，每个垫圈还包括从轴向部分径向向外延伸的径向凸缘。优选地，垫圈的径向凸缘的直径分别大于或等于螺母的直径。
有利地，每个垫圈包括摩擦涂层，特别是高摩擦涂层。
垫圈不能在接触面上滑动。
有利的是，螺栓的外径是恒定的。优选地，螺栓外径等于外螺纹外径。
有利的是，在螺栓的外径和外螺纹之间没有底切。
有利的是，螺栓的每一端包括内部锥形螺纹。优选地，内螺纹的深度可以最大化。
根据另一方面，提出了一种包括如上所述的夹紧螺栓和至少两个部件的组件。
所述两个部件各包括一个连接孔，并且轴向对齐并相互接触。夹紧螺栓的每个垫圈安装在所述两个部件的其中一个连接孔中。螺栓在不接触两个部件的情况下插入连接孔，并由连接孔中的垫圈支撑。
有利的是，两个部件的连接孔是同心的。优选地，所述两个部件的孔径可以相等。
有利的是，夹紧螺栓的每个垫圈轴向插入所述两个部件其中之一和所述螺母其中之一之间。前述摩擦涂层防止接触部件之间的滑动。
附图说明
本发明的其他优点和特征将在对实施例的详细描述和附图的审查中显现，但决不是限制性的，其中:
图1是根据本发明的夹紧螺栓的实施例的透视图，
图2是图1的夹紧螺栓的横截面图，以及
图3是用图1的夹紧螺栓组装在一起的两个涡轮部件的示例的横截面图。
具体实施方式
参考图1和图2，图1和图2示出了夹紧螺栓1的实施例。
夹紧螺栓1包括螺栓2、第一和第二螺母3、4以及第一和第二垫圈5、6。
垫圈5、6例如是套管垫圈。
第一螺母3拧在螺栓1的一端，第二螺母4拧在所述螺栓的相对端。
垫圈5、6轴向定位在两个螺母3、4之间并围绕螺栓2。
垫圈5与第一螺母3轴向接触，垫圈6与第二螺母4轴向接触。
每个垫圈5、6包括安装在螺栓2周围的轴向部分5a、6a和从轴向部分5a、6a径向向外延伸的径向凸缘5b、6b。
螺栓2的每一端部包括从所述端部的正面形成的内部锥形螺纹9、10。
每个垫圈5、6可以包括摩擦涂层，特别是高摩擦涂层。
垫圈5、6不能在接触表面上滑动。
图3示出了用夹紧螺栓1组装在一起的两个涡轮部件11、12的示例的截面图。
在另一个实施例中，夹紧螺栓1可用于组装两个以上的涡轮部件。
在另一个实施例中，涡轮部件可以用一个以上的夹紧螺栓1组装在一起。
涡轮部件可以由涡轮部件之外的其它部件代替。
第一涡轮部件11包括第一连接孔13，第二涡轮部件12包括第二连接孔14，这两个涡轮部件相互接触。
这两个连接孔可以是同心的。
第一垫圈5位于第一螺母3和第一涡轮部件11之间。
更准确地说，第一垫圈5的径向凸缘5b位于螺母3和第一涡轮部件11之间，并且第一垫圈5的轴向部分5a插入第一连接孔13中。
同样，第二垫圈6位于第二螺母4和第二涡轮部件12之间，第二垫圈6的径向凸缘6b位于螺母4和第二涡轮部件12之间，第二垫圈6的轴向部分6a插入第二连接孔14中。
优选地，在螺栓外径和垫圈内径之间可以有0.01-0.21毫米的间隙。更优选地，该间隙可以是0.09-0.11毫米。
优选地，垫圈轴向部分外径和孔内径之间可以有0.01-0.21毫米的间隙。更优选地，该间隙可以是0.09-0.11毫米。
螺栓2插入两个同心的垫圈5、6中。
垫圈5、6将螺栓2保持在连接孔13、14的中心，使得螺栓2不与两个涡轮部件11、12接触。
因此，如果联轴器滑动，螺栓2仅与垫圈5、6接触。
由于螺栓2不与垫圈5、6物理连接，并且不与涡轮部件11、12接触，因此螺栓2总是可以被放松和移除。
夹紧螺栓1的扭矩容量增加，并且具有比前述间隙配合螺栓连接更大的扭矩容量。
夹紧螺栓1比膨胀螺栓更简单且更容易使用，并且公差大大放宽。

Claims (9)

1.一种夹紧螺栓(1)，其包括螺栓(2)和两个螺母(3，4)，每个螺母拧在所述螺栓的一端，其特征在于，所述夹紧螺栓还包括两个垫圈(5，6)，所述垫圈围绕所述螺栓安装并轴向定位在两个螺母之间。
2.根据权利要求1所述的夹紧螺栓，其特征在于，每个垫圈(5，6)包括围绕所述螺栓(2)安装的轴向部分(5a，6a)。
3.根据权利要求2所述的夹紧螺栓，其特征在于，每个垫圈(5，6)还包括从所述轴向部分(5a，6a)径向向外延伸的径向凸缘(5b，6b)。
4.根据权利要求1至3中任一项所述的夹紧螺栓，其中每个垫圈包括摩擦涂层，特别是高摩擦涂层。
5.根据权利要求1至4中任一项所述的夹紧螺栓，其特征在于，螺栓(2)的外径是恒定的。
6.根据权利要求1至5中任一项所述的夹紧螺栓，其特征在于，所述螺栓(2)的每一端包括内部锥形螺纹(9，10)。
7.一种包括根据权利要求1至6中任一项所述的夹紧螺栓(1)和至少两个部件(11，12)的组件，所述两个部件各自包括连接孔(13，14)并且轴向对齐并且彼此接触，其中夹紧螺栓的每个垫圈(5，6)安装在所述两个部件的连接孔(13，14)之一中，螺栓(2)插入连接孔中而不与两个部件接触并且由连接孔中的垫圈支撑。
8.根据权利要求7所述的组件，其特征在于，所述两个部件的连接孔是同心的。
9.根据权利要求7或8所述的组件，其特征在于，所述夹紧螺栓的每个垫圈(5，6)轴向插入在所述两个部件其中之一和所述两个螺母(3，4)其中之一之间。
CN202210258175.7A 2021-03-23 2022-03-16 夹紧螺栓和相关组件 Pending CN115111246A (zh)

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