公开(公告)号：US08021253B2

公开(公告)日：2011-09-20

申请号：US12298036

申请日：2007-04-26

申请人： James W. Dell ,  John R. Antchak ,  Trevor S. Smith

发明人： James W. Dell ,  John R. Antchak ,  Trevor S. Smith

IPC分类号： F16D3/52 ,  F16H55/36

CPC分类号： F16H55/36 ,  F16D3/02 ,  F16D3/72 ,  F16H2055/366

摘要： A one way isolator for high torque devices, such as alternator-starters, driven by a flexible drive means includes a hub and a sheave each of which includes at least one stop member. The hub and sheave are linked by a isolating spring and, via a bearing and/or bushing, can rotate with respect to each other to provide isolation, through the spring, from torque variations when torque is transferred from the flexible drive means to the device. When substantial amounts of torque are transferred from the device to the flexible drive means, the sheave rotates with respect to the hub to bring the stop members into contact such that the isolator then acts like a solid pulley to facilitate the transfer of the torque from the device.

摘要翻译： 用于高扭矩设备的单向隔离器，例如由柔性驱动装置驱动的交流发电机起动器，包括轮毂和绳轮，每个轮毂和绳轮包括至少一个止动构件。 轮毂和滑轮通过隔离弹簧连接，并且通过轴承和/或衬套可以相对于彼此旋转，以通过弹簧提供当扭矩从柔性驱动装置传递到装置时的扭矩变化的隔离 。 当大量的扭矩从装置传递到柔性驱动装置时，滑轮相对于轮毂旋转以使止动构件接触，使得隔离器然后像实心滑轮一样起作用，以便将转矩从 设备。

公开(公告)号：US4725260A

公开(公告)日：1988-02-16

申请号：US29695

申请日：2987-03-24

申请人： Jacek S. Komorowski ,  Klaus K. Bytzek

发明人： Jacek S. Komorowski ,  Klaus K. Bytzek

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1218 ,  F02B2275/06 ,  F16H2007/081 ,  F16H2007/084 ,  F16H2007/0844

摘要： A belt tensioning device having an improved damping mechanism for damping movements of the pivoted structure rotatably carrying the pulley with respect to the fixed structure. The damping mechanism includes a strap and a ring mounted on their respective fixed and pivoted structures and with respect to one another such that the strap engages the ring with a gripping action sufficient to provide (1) a relatively high resistance to frictional sliding movement between the strap and ring in one direction correspond to the direction of untensioning of the belt with the pulley and (2) a relatively low resistance to frictional sliding movement between the strap and ring in an opposite direction corresponding to the direction of belt tensioning. A spring is included in the mount for enabling the relatively high resistance and relatively low resistance to vary in response to the existence of predetermined vibrations such that the gripping action between strap and ring is relieved sufficient to enable movement therebetween in both directions to take place at substantially reduced resistance levels.

公开(公告)号：US4698049A

公开(公告)日：1987-10-06

申请号：US850700

申请日：1986-04-11

申请人： Klaus K. Bytzek ,  John R. Antchak

发明人： Klaus K. Bytzek ,  John R. Antchak

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1218 ,  F02B2275/06 ,  F16H2007/081

摘要： A belt tensioner in which the bearing for mounting the pulley carrying pivoted structure on the fixed structure comprises a frustoconical sleeve bearing having a frustoconical exterior surface and a frustoconical interior surface engaged between annular portions of the two structures. The frustoconical surface of one of the annular portions is (1) formed on the exterior periphery thereof and (2) disposed in engagement with the interior bearing frustoconical surface. The one annular portion has a load center point disposed on the pivotal axis of the pivoted structure. The other annular portion has a load center point disposed on a line disposed within a plane passing through the pivotal axis of the pivoted structure and the rotational axis of the pulley corresponding to the one line of the two lines of intersection of the bearing frustoconical surface with the plane through which the radially inward force component transmitted by the pivoted structure is applied to the sleeve bearing. The load center points are positioned such that the radially inward force component transmitted by the pivoted structure and resisted by the fixed structure is transmitted generally from one load center point to the other along a line extending between the points which line is perpendicular to and bisects the one line so that the radially inward force component transmitted by the pivoted structure to the sleeve bearing is distributed evenly throughout the axial extent of the sleeve bearing.

摘要翻译： 一种皮带张紧器，其中用于将承载枢转结构的皮带轮安装在固定结构上的轴承包括具有截头圆锥形外表面和截头圆锥形内表面的截头圆锥形套筒轴承，所述截头圆锥形外壳表面接合在两个结构的环形部分之间。 其中一个环形部分的截头圆锥形表面形成在其外周上，（2）设置成与内部承载截头圆锥形表面接合。 一个环形部分具有设置在枢转结构的枢转轴线上的载荷中心点。 另一个环形部分具有设置在穿过枢转结构的枢转轴线的平面内的线上的载荷中心点，并且滑轮的旋转轴线对应于轴承截头圆锥形表面与两个截面圆锥形表面的两条交线的一条线 通过枢转结构传递的径向向内的力分量施加到套筒轴承的平面。 负载中心点被定位成使得由枢转结构传递并且被固定结构抵抗的径向向内的力分量通常从一个负载中心点向另一个沿着在垂直于和平分的点之间延伸的线传播 使得由枢转结构传递到套筒轴承的径向向内的力分量均匀地分布在套筒轴承的整个轴向范围内。

公开(公告)号：US4473362A

公开(公告)日：1984-09-25

申请号：US281501

申请日：1981-07-08

申请人： Henry W. Thomey ,  Klaus K. Bytzek ,  Johannes H. Mevissen

发明人： Henry W. Thomey ,  Klaus K. Bytzek ,  Johannes H. Mevissen

IPC分类号： F02B67/06 ,  F16F1/48 ,  F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1209 ,  F02B67/06 ,  F02B2275/06 ,  F16H2007/081 ,  F16H2007/0893 ,  F16H7/0831

摘要： In a belt tensioning device of the type including a fixed structure, a pivoted structure mounted with respect to the fixed structure for pivotal movement about a first axis between first and second limiting positions, a belt engaging pulley rotatably carried by the pivoted structure for rotational movement about a second axis parallel with the first axis and a torsional coil spring acting between the fixed and pivoted structures for resiliently biasing the pivoted structure to move in a direction away from the first limiting position toward the second limiting position with a spring force which decreases as the pivoted structure is moved in a direction away from the first position toward the second position. The device is provided either with an elastomeric damping body for (1) damping by elastomeric material displacement normal low amplitude operating movements of the pivoted structure and (2) damping sequentially by high friction surface sliding abnormal high amplitude movements of the pivoted structure beyond those which are damped by the elastomeric material displacement with a damping force which decreases as the pivoted structure is moved in a direction away from the first position toward the second position or a Zytel damping body for damping by friction surface sliding substantially all movements of said pivoted structure with a damping force which decreases as the pivoted structure is moved in a direction away from the first position toward the second position.

摘要翻译： 在包括固定结构的类型的皮带张紧装置中，相对于固定结构安装的枢转结构，用于围绕第一和第二限制位置之间的第一轴线枢转运动;带轮接合滑轮，可旋转地由枢转结构承载，用于旋转运动 围绕与第一轴线平行的第二轴线以及作用在固定和枢转结构之间的扭转螺旋弹簧，用于弹性地偏压枢转结构，使其沿着远离第一限制位置的方向朝向第二限位位置移动，弹簧力减小为 枢转结构沿远离第一位置朝向第二位置的方向移动。 该装置设置有弹性体阻尼体，用于（1）通过弹性体材料的阻尼，使枢转结构的正常低振幅操作运动和（2）通过高摩擦表面顺序地阻挡枢转结构的异常高振幅运动超过那些 被弹性体材料位移阻尼，阻尼力随着枢转结构沿远离第一位置朝向第二位置移动而减小，或者Zytel阻尼体用于通过摩擦表面进行阻尼，基本上使所述枢转结构的所有运动滑动， 所述阻尼力随着所述枢转结构沿远离所述第一位置朝向所述第二位置的方向移动而减小。

公开(公告)号：US4689037A

公开(公告)日：1987-08-25

申请号：US871874

申请日：1986-06-09

申请人： Klaus K. Bytzek

发明人： Klaus K. Bytzek

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1218 ,  F02B2275/06 ,  F16H2007/081

摘要： In a belt tensioning device comprising a fixed structure, a pivoted structure mounted with respect to the fixed structure for pivotal movement about a first axis between first and second limiting positions, a belt engaging pulley rotatably carried by the pivoted structure for rotational movement about a rotational axis parallel with the pivotal axis, a spring acting between the fixed and pivoted structures for resiliently biasing the pivoted structure to move in a direction away from the first limiting position toward the second limiting position so as to tension a belt engaged by the pulley, and a damping mechanism for damping the pivotal movements of the pivoted structure about the pivotal axis. The damping mechanism includes a stack of damping elements having interengaging pairs of surfaces disposed transversely with respect to the pivotal axis so as to be slidable with respect to one another in spaced planes of revolution about the pivotal axis. The stack includes a first plurality of damping elements and a second plurality of damping elements which are disposed within the stack in alternate positions with respect to the damping elements of the first plurality and which are mounted on the fixed and printed structures respectively applied to the opposite end element of the will cause the pairs of interengaging surfaces of the stack elements to move together and create a predetermined sliding friction therebetween when the pivoted structure is moved with respect to the fixed structure about the pivotal axis so as to provide a predetermined damping of such movement.

摘要翻译： 在包括固定结构的皮带张紧装置中，枢转结构相对于固定结构安装，用于围绕第一和第二限位位置之间的第一轴线枢转运动;皮带接合皮带轮，可转动地由所述枢转结构承载，用于围绕旋转 所述弹簧作用在所述固定和枢转结构之间，用于弹性地偏置所述枢转结构，以使其沿远离所述第一限制位置的方向朝向所述第二限位位置移动，以便张紧由所述滑轮接合的皮带，以及 阻尼机构，用于阻止枢转结构围绕枢转轴线的枢转运动。 阻尼机构包括一堆阻尼元件，其具有相对于枢转轴线横向设置的相互接合的一对表面，以便能够围绕枢转轴线以相互间隔的旋转平面相对于彼此滑动。 所述堆叠包括第一多个阻尼元件和第二多个阻尼元件，所述阻尼元件和所述第二多个阻尼元件相对于所述第一多个阻尼元件布置在所述堆叠内的交替位置，并且安装在分别施加到相对的所述固定和印刷结构上 当枢转结构相对于围绕枢转轴线的固定结构移动时，堆叠元件的相互接合表面对将一起移动并在其间产生预定的滑动摩擦，以便提供这样的预定阻尼 运动。

公开(公告)号：US4583962A

公开(公告)日：1986-04-22

申请号：US679476

申请日：1984-12-07

申请人： Klaus K. Bytzek ,  Jacek S. Komorowski

发明人： Klaus K. Bytzek ,  Jacek S. Komorowski

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1218 ,  F16H2007/081 ,  F16H2007/084 ,  F16H2007/0893

摘要： A timing belt tensioning device comprising a fixed structure having a spring pressed pivoted structure mounted thereon for pivotal movement about a first axis between first and second limiting positions. The pivoted structure carries a timing belt engaging pulley for rotational movement about a second axis parallel with the first axis. A one-way clutch mechanism is provided for permitting pivotal movement of the pivoted structure in a direction toward a second limiting position and for limiting the pivotal movement of the pivoted structure in an opposite direction toward the first limiting position beyond a predetermined distance measured from the nearest position of the pivoted structure to the second limiting position. The predetermined distance has a maximum dimension such as to prevent loosening of the timing belt engaged by the pulley sufficient to allow disengagement of a tooth thereof with a tooth of a timing pulley and a minimum dimension such as to accommodate normal operating low amplitude movements and thermal expansion during operation. A damping system is provided for damping the operating movements of the pivoted structure permitted by the one-way clutch mechanism.

摘要翻译： 一种同步带张紧装置，包括固定结构，其具有安装在其上的弹簧按压的枢转结构，用于围绕第一和第二限位位置之间的第一轴线枢转运动。 枢转结构承载同步带接合滑轮，用于围绕平行于第一轴线的第二轴线旋转运动。 提供单向离合器机构，用于允许枢转结构在朝向第二限位位置的方向上枢转运动，并且用于限制枢转结构沿相反方向朝向第一限位位置的枢转运动超过从 枢转结构的最近位置到第二限位位置。 预定距离具有最大尺寸，以防止由滑轮接合的同步皮带的松动，足以允许其齿与同步皮带轮的齿脱离，并且具有最小尺寸，以适应正常运行的低振幅运动和热 运行期间扩张。 提供阻尼系统，用于阻尼由单向离合器机构允许的枢转结构的操作运动。

公开(公告)号：US07980976B2

公开(公告)日：2011-07-19

申请号：US11813463

申请日：2006-01-18

申请人： Jacek Stepniak ,  Jorma J. Lehtovaara ,  Marek Frankowski

发明人： Jacek Stepniak ,  Jorma J. Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/10

CPC分类号： F16H7/1281 ,  F16H2007/081 ,  F16H2007/0846 ,  F16H2007/0878 ,  F16H2007/088

摘要： A tensioner for tensioning a flexible drive means, such as a timing belt or chain, includes a pulley to contact the belt. The pulley is mounted on a tensioner arm and the tensioner arm can be rotated about a pivot shaft mounted to the tensioner by a spring. The axis about which the pulley rotates is spaced from the axis of the rotation of the tensioner arm with respect to the pivot shaft and the spacing of these axes of rotation results in the pulley moving through an eccentric towards or away from the belt when the tensioner arm is rotated. A stop is used to limit the range of movement of the tensioner arm between a desired range of movement defined by a free arm stop and a backstop. The position of the stop is adjustable by an installer. The angular range of movement of the tensioner arm is adjustable from a position suitable for installation of the tensioner to a position suitable for operation of the installed tensioner. In one embodiment, the movement of the stop from the installation position to the nominal operating position also compensates the spring.

摘要翻译： 用于张紧诸如同步带或链条的柔性驱动装置的张紧器包括用于接触皮带的皮带轮。 滑轮安装在张紧器臂上，并且张紧器臂可以通过弹簧围绕安装到张紧器的枢轴旋转。 滑轮旋转的轴线相对于枢轴与张紧器臂的旋转轴线间隔开，并且这些旋转轴线的间隔导致滑轮在张紧器时朝向或远离皮带轮移动， 手臂旋转。 止动器用于将张紧器臂的移动范围限制在由自由臂停止器和止回阀所限定的期望运动范围之间。 停止位置可由安装人员调整。 张紧器臂的角度范围可以从适于安装张紧器的位置调整到适合于安装的张紧器的操作的位置。 在一个实施例中，止动件从安装位置到标称操作位置的移动还补偿弹簧。

公开(公告)号：US07874950B2

公开(公告)日：2011-01-25

申请号：US11908636

申请日：2006-03-20

申请人： Jorma J. Lehtovaara ,  Marek Frankowski

发明人： Jorma J. Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/12

CPC分类号： F16H7/1281 ,  F16H7/0848 ,  F16H2007/081 ,  F16H2007/0846 ,  F16H2007/0878

摘要： A tensioner enables easy and reliable reinstallation of the tensioner and belt in the field service while simultaneously making it possible to utilize a one-way clutch device to ensure continuous belt tension control without cumbersome manual alignment and/or realignment procedures. The tensioner has a pivot shaft configured for mounting on an engine surface. A tensioner arm is mounted on the pivot shaft for pivotal movement between a free arm stop position and premount stop position. A belt-engaging pulley is mounted for rotation on the tensioner arm. A base cup is rotatably mounted around an end of the pivot shaft. The base cup has an arcuate slot having a free arm stop end and a premount stop end. The tensioner arm cooperates with the arcuate slot limiting the pivotal movement of the tensioner arm. A spring is coupled between the tensioner arm and the base cup biasing the tensioner arm in a belt-tensioning direction. An anti-kickback stop mechanism engages the pivot shaft and has a lost motion connection with the tensioner arm wherein the tensioner arm moves through a free range without engaging the anti-kickback mechanism. The tensioner arm 1) rotates the anti-kickback mechanism as the tensioner arm moves beyond the free range towards the premount stop position and 2) enables the anti-kickback mechanism as the tensioner arm moves beyond the free range towards the free arm stop position, limiting travel of the tensioner arm therebeyond. The spring is fixable relative to the pivot shaft upon the tensioner being mounted on the engine surface.

摘要翻译： 张紧器能够在现场服务中容易且可靠地重新安装张紧器和皮带，同时使得可以使用单向离合器装置来确保连续的皮带张力控制，而无需繁琐的手动对准和/或重新对准程序。 张紧器具有构造成用于安装在发动机表面上的枢轴。 张紧臂安装在枢轴上，用于在自由臂停止位置和预停止位置之间枢转运动。 安装皮带接合滑轮以在张紧臂上旋转。 基座杯围绕枢转轴的端部可旋转地安装。 底杯具有弓形槽，其具有自由臂停止端和预安装止挡端。 张紧臂与弓形槽配合，限制张紧臂的枢转运动。 弹簧联接在张紧器臂和基座杯之间，以张紧张力方向偏压张紧器臂。 防反冲停止机构接合枢转轴并且与张紧器臂具有空动连接，其中张紧器臂移动自由范围而不接合防反冲机构。 张紧器臂1）当张紧器臂移动超过自由范围朝向预安置停止位置时，使防反冲机构旋转，以及2）当张紧器臂朝向自由臂停止位置移动超过自由范围时，能够实现防反冲机构， 限制张紧臂的行程。 弹簧在张紧器安装在发动机表面上时可相对于枢轴固定。