CN111465783B - 张紧器 - Google Patents

张紧器 Download PDF

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CN111465783B
CN111465783B CN201880079148.5A CN201880079148A CN111465783B CN 111465783 B CN111465783 B CN 111465783B CN 201880079148 A CN201880079148 A CN 201880079148A CN 111465783 B CN111465783 B CN 111465783B
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bracket
tensioner
arm
axis
pulley
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CN111465783A (zh
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S·辛格
S·基姆
M·科佩瑟
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Gates Corp
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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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1263—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially straight path
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0842—Mounting or support of tensioner
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0865—Pulleys
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0891—Linear path
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0893—Circular path

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

一种张紧器，该张紧器包括：可枢转地安装到安装表面的支架；臂，该臂上轴颈式连接有第一带轮和第二带轮，该臂与支架滑动地接合以相对于支架轴线A‑A进行线性运动；以及设置在支架和臂之间的弹簧，该弹簧抵抗臂沿支架轴线A‑A的运动。

Description

张紧器
技术领域
本发明涉及一种张紧器，并且更具体地涉及一种具有枢转支架和与该枢转支架线性滑动接合的臂的张紧器，该臂具有两个带轮。
背景技术
大多数内燃机包括例如动力转向机构、交流发电机和空调机构之类的附件。这些附件通常由带驱动。张紧器通常用于向带施加预紧力，以防止打滑。张紧器可以安装在发动机安装表面上。
发动机可以进一步包括起停系统，由此，当车辆不运动时，发动机将停机，并且当接收到驾驶员命令继续行进时，发动机将重新起动。
起停功能将倾向于使带上的负载反向。因此，可以使用张紧器来适应带负载的反转。张紧器可以包括一个或多个独立枢转的部件，以便在两个带驱动方向上均正确地施加所需的带预紧力。张紧器也可以直接安装在附件上，诸如安装在电动发电机组上，以节省发动机舱中的空间。
本领域的代表技术是US 6942589，其公开了一种用于发动机中的环形动力传动带的张紧器的方法和系统。该方法和系统包括联接至带的AGS带轮和曲轴带轮，AGS带轮或曲轴带轮之一作为驱动带的主动带轮，使得在带中于主动带轮的相反两侧上产生紧跨度部和松跨度部。该方法和系统还包括联接至带的从动带轮。张紧器包括第一臂和第二臂，每个臂可旋转地联接至一带轮，这些带轮定位成使得其中的第一带轮联接至紧跨度部，而其中的第二带轮联接至松跨度部。
需要一种张紧器，该张紧器具有枢转支架和与该枢转支架线性滑动接合的臂，该臂具有用于接合带的两个带轮。本发明满足了这一需求。
发明内容
本发明的主要方面在于提供一种张紧器，该张紧器具有枢转支架和与该枢转支架线性滑动接合的臂，该臂具有用于接合带的两个带轮。
通过本发明的以下描述和附图，将指出或使得本发明的其他方面显而易见。
本发明包括一种张紧器，该张紧器包括：可枢转地安装到安装表面的支架；臂，该臂上轴颈式连接有第一带轮和第二带轮，该臂与支架滑动地接合以相对于支架的轴线A-A进行线性运动；以及设置在支架与臂之间的弹簧，该弹簧抵抗臂沿支架的轴线A-A的运动。
附图说明
结合在说明书中并构成说明书一部分的附图示出了本发明的优选实施方式，并且与说明书文字部分一起用于解释本发明的原理。
图1是张紧器的立体图。
图2是在2-2处的张紧器的剖视图。
图3是在3-3处的张紧器的剖视图。
图4是在4-4处的张紧器的剖视图。
图5是张紧器的分解图。
图6是安装在带驱动机器上的张紧器的前视图。
具体实施方式
图1是张紧器的立体图。张紧器1000包括通过紧固件101可枢转地安装到安装表面的支架100。支架100绕紧固件101在基座102上枢转。基座102设置在支架和安装表面之间。
臂200滑动接合在支架100内的轴向接收部103中。压缩弹簧300将弹簧载荷施加到臂200上。对于本发明的目的，臂200是刚性的而非柔性的。响应于弹簧作用，臂200通过两个轴颈式连接在其上的带轮对带B施加负载，参见图6。
带轮201轴颈式连接到臂200的第一部分203。带轮202轴颈式连接到臂200的第二部分204。部分203相对于载体支架100的轴线A-A在与部分204相反的方向上延伸。带轮201和带轮202是共面的。当张紧器工作时，这趋于平衡各带轮相对于紧固件101所呈现的轮毂负载。支架100响应于带轮轮毂负载的变化而绕紧固件101自动地枢转，因此，各轮毂负载的组合矢量作用通过紧固件101的主轴线。这又防止了支架100在操作中被束缚。
图2是在2-2处的张紧器的剖视图。弹簧接合部分205和臂200为塑料、金属或本领域已知的任何其他合适的材料。臂200的部分205沿着轴线A-A以滑动方式配合地接合接收部103。在该实施方式中，部分205和接收部103的截面为矩形，但是也可以为使用者需要的任何其他合适的几何截面形式。
衬套400设置在部分205和接收部103之间。衬套400包括能够为部分205在接收部103内沿着线性轴线A-A的轴向摆动运动提供阻尼的任何合适的材料。弹簧300设置并保持在突起104和突起206之间。突起104和突起206沿着轴线A-A延伸。弹簧300是螺旋弹簧并且截面是圆形的。弹簧300保持在部分205和接收部103中。
图3是在3-3处的张紧器的剖视图。带轮201和202接合带并且因此是共面的。衬套400允许部分205和接收部103之间的滑动运动。包含每个带轮201、202的平面还包括弹簧300。更具体地，轴线A-A包含在带轮201和202以及弹簧300所占据的平面中。
图4是在4-4处的张紧器的剖视图。突起104接合弹簧300的一端。部分205在衬套400内滑动地接合接收部103。
支架100通过紧固件101与基座102上的安装表面(MS)枢转地接合。紧固件101可以旋拧入或压入安装表面。在此实施方式中，安装表面MS包括带驱动机器(BDM)，参见图6。轴线A-A与延伸穿过紧固件101并由此穿过支架绕紧固件101的枢转轴线的轴线相交。
图5是张紧器的分解图。臂200沿轴线A-A以线性方式运动。部分205的形式将防止部分205相对于接收部103的任何相对“摇摆”或左右移动。
防尘罩207、209分别防止碎屑进入轴承213和214。
支架100响应于带运动而绕紧固件101枢转。垫圈108设置在基座102上，以便将衬套107保持在基座102上，从而将支架100保持在基座102上。也可以使用其他附接方法，诸如螺纹连接、压配合或卡扣配合。阻尼构件105设置在基座102与衬套106之间。阻尼构件105为支架100绕紧固件101的枢转振动提供阻尼。弹簧300被压缩加载。
衬套400防止部分205与接收部103直接接触。
图6是安装在带驱动机器上的张紧器的前视图。张紧器1000通过紧固件101安装到带驱动机器上。带B与带轮201和202接合。带B也与带轮P1接合，然后带轮P1驱动BDM。BDM可以是支持起停操作的发动机部件，例如，起动发电机。
当BDM作为起动机以起动模式操作时，或者当BDM作为发电机(generator)或交流发电机(alternator)操作时，臂200沿轴线A-A的滑动运动控制了发动机操作期间的带张力。带的绷紧侧和松弛侧会根据BDM的操作模式而变化。臂200的运动与支架100的枢转运动同时进行来适应带张力的变化，这又控制带张紧行为。当BDM将操作模式从起动机转换到发电时，对带张力的控制可以延长带寿命，并降低带噪音。
尽管已经在本文中对本发明的形式进行了描述，但对于本领域技术人员而言显而易见的是，在不脱离本文描述的本发明的精神和范围的情况下，可以对部件和方法的构造和关系做出各种变型。

Claims (7)

1.一种张紧器，包括：
可枢转地安装到安装表面的支架；
一体式刚性的臂，所述臂上轴颈式连接有第一带轮和第二带轮；
所述臂与所述支架滑动接合以相对于支架的轴线A-A进行线性运动；以及
设置在所述支架和所述臂之间的弹簧，所述弹簧抵抗所述臂沿所述支架的轴线A-A的运动。
2.根据权利要求1所述的张紧器，其中，所述第一带轮和所述第二带轮相对于所述支架的轴线A-A彼此相对。
3.根据权利要求1所述的张紧器，其中，所述弹簧是压缩弹簧。
4.如权利要求1所述的张紧器，其中，所述安装表面在带驱动机器上。
5.根据权利要求1所述的张紧器，还包括设置在所述支架和基座之间的阻尼构件，以阻尼所述支架的枢转运动。
6.根据权利要求1所述的张紧器，其中，所述轴线A-A与延伸穿过所述支架的枢转轴线的轴线相交。
7.根据权利要求6所述的张紧器，其中，所述支架的枢转轴线延伸穿过紧固件。
CN201880079148.5A 2017-12-08 2018-12-07 张紧器 Active CN111465783B (zh)

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US15/835,967 US10830316B2 (en) 2017-12-08 2017-12-08 Tensioner
PCT/US2018/064463 WO2019113438A1 (en) 2017-12-08 2018-12-07 Tensioner

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