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1.发明公开公开(公告)号：US20240101223A1
公开(公告)日：2024-03-28
申请号：US18325859
申请日：2023-05-30
申请人： Praxis Works LLC
发明人： Gregor SCHUSTER
摘要： A control device for controlling a transmission ratio between a traction means and a sprocket set rotatable about an axle may include at least two sprockets alternatively wrapped around by the traction means. At least one of the sprockets may include several independently adjustable rim segments. Adjustment of the rim segments in relation to a fixed plane may be effected by a control device in a direction substantially transverse to the plane. The control device includes at least one electrically actuatable control element, e.g., a servomotor. The at least one control element is configured to rotate with the sprockets.
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公开(公告)号：US11661145B2
公开(公告)日：2023-05-30
申请号：US16384485
申请日：2019-04-15
申请人： Praxis Works LLC
发明人： Gregor Schuster
摘要： A control device for controlling a transmission ratio between a traction means and a sprocket set rotatable about an axle may include at least two sprockets alternatively wrapped around by the traction means. At least one of the sprockets may include several independently adjustable rim segments. Adjustment of the rim segments in relation to a fixed plane may be effected by a control device in a direction substantially transverse to the plane. The control device includes at least one electrically actuatable control element, e.g., a servomotor. The at least one control element is configured to rotate with the sprockets.
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3.发明申请公开(公告)号：US20180290710A1
公开(公告)日：2018-10-11
申请号：US15765057
申请日：2016-10-03
摘要： The transmission comprises a chainring (12) rotatable around an axis of rotation (x), at least one sprocket (13) and a chain (14) for transmitting to said at least one sprocket (13) the rotary motion of the chainring (12) around the axis of rotation (x). The chainring (12) comprises a disc (16) and a plurality of meshing devices (22; 122) which are mounted in radially movable manner on the disc (16) and are arranged to enable engagement of the disc (16) with the chain (14) for transmitting motion from the chainring (12) to the at least one sprocket (13) by means of the chain (14). The transmission further comprises shifting means (18, 60) for varying the radial position of the meshing devices (22; 122) in order to change the transmission ratio with which the chainring (12) transmits motion to the at least one sprocket (13). Each meshing device (22; 122) comprises a support body (24; 124) and a tilting fork (28; 128) which is supported on the respective support body (24; 124) for tilting around a first tilting axis (x′) parallel to the axis of rotation (x) of the chainring (12), and comprises at least one tooth (28a; 128a) for engaging a link (14a) of the chain (14). Each meshing device (22; 122) further comprises braking means (32, 38, 40; 132, 138, 140, 178) for preventing the respective tilting fork (28; 128) from tilting around the first tilting axis (x′).
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公开(公告)号：US20180231109A1
公开(公告)日：2018-08-16
申请号：US15513803
申请日：2015-05-13
发明人： Andrii Pydin
CPC分类号： F16H9/16 , F16H9/20 , F16H55/48 , F16H55/52 , F16H55/54 , F16H55/56 , F16H59/70 , F16H2059/702
摘要： A stepless transmission transmits a driving force by an endless transmission member (5) wound around a V-groove (6) of an input pulley (1). The input pulley (1) has moving parts (9) which are fastened by threaded engagement so as to be axially movable with respect to a transmission case (3) and have ring gears (10), to which rotation can be input from the outer periphery sides, and pulley half discs (13) which are relatively rotatable with respect to the moving parts (9), which axially move integrally with the moving parts (9) and which are contactable with an endless transmission member (5). The pulley half discs (13) and an input shaft 2, which is disposed at the center of the pulley half discs (13), rotate together as one piece. The ring gears (10) are each rotationally driven from a drive source of the same drive member.
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公开(公告)号：US20170241521A1
公开(公告)日：2017-08-24
申请号：US15588293
申请日：2017-05-05
申请人： SRI International
摘要： A belt wave drive transmission system and method are shown involving a first rotor (10) having a first drum configured to rotate about its axis of rotation and a second rotor (20) having a second drum configured to rotate about its axis of rotation, where the first rotor (10) is constrained to orbit concentrically about the axis of rotation of the second drum. A belt (30) encircles the first and second drums to couple the first (10) and second (20) rotors such that the first rotor (10) moves concentrically around the second rotor (20) as the belt (30) advances about a circumference of the second drum. In further refinements, the system and method involve electrically controllably coupling at least one of the first and second rotors to the belt.
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公开(公告)号：US20170030454A1
公开(公告)日：2017-02-02
申请号：US15301025
申请日：2015-03-31
CPC分类号： F16H55/563 , B62M9/08 , B62M27/02 , F16H9/12 , F16H9/14 , F16H55/36 , F16H55/52 , F16H55/54 , F16H55/56 , F16H2055/366
摘要： A drive pulley for a CVT has a fixed sheave, a fixed sheave shaft fixedly connected to the fixed sheave, a movable sheave, a movable sheave shaft fixedly connected to the movable sheave, a spider and at least one centrifugal actuator. The fixed sheave shaft is disposed at least in part inside the movable sheave shaft. The movable sheave is disposed axially between the spider and the fixed sheave. A biasing member biases the movable sheave axially away from the fixed sheave. A torque transfer assembly is operatively connected to at least one of the fixed sheave and the movable sheave. The torque transfer assembly transfers torque between the fixed sheave and the movable sheave. The biasing member, the at least one centrifugal actuator and the torque transfer assembly are disposed radially outward of the fixed and movable sheave shafts.
摘要翻译： 用于CVT的驱动滑轮具有固定的滑轮，固定的滑轮轴固定地连接到固定滑轮，可动滑轮，固定地连接到可动滑轮的可动滑轮轴，星形轮和至少一个离心致动器。 固定滑轮轴至少部分地设置在可动滑轮轴的内部。 可移动滑轮轴向设置在蜘蛛和固定滑轮之间。 偏置构件使可动滑轮沿轴向偏离固定滑轮。 扭矩传递组件可操作地连接到固定滑轮和可动滑轮中的至少一个。 扭矩传递组件在固定滑轮和可动滑轮之间传递扭矩。 偏置构件，至少一个离心致动器和扭矩传递组件设置在固定和可移动的滑轮轴的径向外侧。
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公开(公告)号：US09334944B2
公开(公告)日：2016-05-10
申请号：US14452126
申请日：2014-08-05
申请人： Deere & Company
发明人： Andy B. Appleton
摘要： A variable-speed belt drive pulley assembly includes a plurality of pulley segments, a plurality of sliders, and a rotatable hub. Each segment is adapted to engage a drive belt and is mounted to an outer end of a corresponding slider which is slidably received by the hub. Each slider may be a pair of rods extending from the body in parallel relationship to each other. The hub has a plurality of bores. Each bore slidably receives a corresponding one of the rods. An actuator device moves the segments radially inwardly and outwardly with respect to the hub. A coil spring is mounted on each the rods, and is biased to urge one of the segments radially outwardly.
摘要翻译： 变速皮带驱动皮带轮组件包括多个皮带轮部分，多个滑块和可旋转轮毂。 每个段适于接合传动带并且安装到由轮毂可滑动地接收的相应滑块的外端。 每个滑块可以是从主体以彼此平行的关系延伸的一对杆。 轮毂有多个孔。 每个孔可滑动地接收相应的一个杆。 致动器装置相对于轮毂径向向内和向外移动分段。 螺旋弹簧安装在每个杆上，并被偏压以将部分径向向外推动。
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公开(公告)号：US20140287855A1
公开(公告)日：2014-09-25
申请号：US14297700
申请日：2014-06-06
申请人： 1783590 Ontario Ltd.
发明人： Anthony Wong , Paul Boterro , Michael Doyle
摘要： A segmented pulley transmission is provided. A pulley assembly is rotationally mounted on an axle. The pulley assembly includes a core pulley having a first set of mating features on a peripheral surface thereof. A pulley segment set comprises a number of pulley segments slidably mounted in the pulley assembly and arranged in a ring concentric with the core pulley. The pulley segments are individually actuatable out of the pulley assembly into an engaging position and into the pulley assembly into a non-engaging position. The pulley segments have a second set of mating features on an peripheral surface matching the first set of mating features. An endless drive member has corresponding mating features on an inside surface for engaging the first and second sets of mating features of the core pulley and the pulley segments in an engaging position. Contact between the endless drive member and a core pulley defines a contact zone. An actuator actuates the pulley segments between the engaging and nun-engaging positions when the pulley segments are outside of the contact zone. One of the key pulley segments in the pulley segment set is a key pulley segment that is positioned relative to the core pulley such that when the key pulley segment is actuated to the engaging position and rotated into the contact zone, the corresponding mating features of the endless drive member engage the first set of mating features of the core pulley and the second set of mating features of the key pulley segment without the introduction of significant slack or tension.
摘要翻译： 提供分段皮带轮传动。 滑轮组件旋转地安装在轴上。 滑轮组件包括在其外周表面上具有第一组配合特征的芯滑轮。 滑轮段组包括多个可滑动地安装在滑轮组件中并且布置在与芯滑轮同心的环中的滑轮段。 滑轮段可独立地从皮带轮组件驱动到接合位置并进入皮带轮组件进入非接合位置。 滑轮段在与第一组配合特征匹配的外围表面上具有第二组配合特征。 环形驱动构件在内表面上具有相应的配合特征，用于在接合位置接合芯轮滑轮和滑轮段的第一组和第二组配合特征。 环形驱动构件和芯轮之间的接触限定了接触区。 当滑轮段在接触区域外部时，致动器致动在接合位置和修整接合位置之间的滑轮段。 滑轮段组中的关键滑轮段之一是相对于芯滑轮定位的关键滑轮段，使得当滑轮段被致动到接合位置并旋转到接触区域时，相应的配合特征 环形驱动构件接合芯滑轮的第一组配合特征和关键滑轮段的第二组配合特征，而不引入明显的松弛或张力。
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公开(公告)号：US08753236B2
公开(公告)日：2014-06-17
申请号：US12676894
申请日：2005-05-19
申请人： Anthony Wong , Paul Boterro , Michael Doyle
发明人： Anthony Wong , Paul Boterro , Michael Doyle
IPC分类号： F16H55/00
摘要： A segmented pulley transmission [20] is provided. A pulley assembly [36] is rotationally mounted on an axle [32]. The pulley assembly [36] includes a core pulley [45] having a first set of mating features on a peripheral surface thereof. A pulley segment set comprises a number of pulley segments [48] slidably mounted in the pulley assembly and arranged in a ring concentric with the core pulley [45]. The pulley segments [48] are individually actuatable out of the pulley assembly into an engaging position and into the pulley assembly into a non-engaging position. The pulley segments [48] have a second set of mating features [52] on an peripheral surface matching the first set of mating features. An endless drive member [47] has corresponding mating features on an inside surface for engaging the first and second sets of mating features of the core pulley [45] and the pulley segments [48] in an engaging position. Contact between the endless drive member [47] and a core pulley defines a contact zone [CZ]. An actuator [80] actuates the pulley segments [48] between the engaging and non-engaging positions when the pulley segments [48] are outside of the contact zone [CZ]. One of the pulley segments [48] in the pulley segment set is a key pulley segment [48a] that is positioned relative to the care pulley [45] such that when the key pulley segment [48a] is actuated to the engaging position and rotated into the contact zone [CZ], the corresponding mating features of the endless drive member [47] engage the first set of mating features of the core pulley [45] and the second set of mating features [52] of the key pulley segment [48a] without the introduction of significant slack or tension.
摘要翻译： 提供了分段滑轮传动装置[20]。 滑轮组件[36]旋转地安装在轴[32]上。 滑轮组件[36]包括在其外周表面上具有第一组配合特征的芯滑轮[45]。 滑轮段组包括多个可滑动地安装在滑轮组件中并且布置成与芯滑轮[45]同心的环的滑轮段[48]。 滑轮段48可独立地从皮带轮组件驱动到接合位置并进入滑轮组件中，使其成为非接合位置。 滑轮段48具有与匹配第一组配合特征的外围表面上的第二组匹配特征[52]。 环形驱动构件[47]在内表面上具有对应的配合特征，用于在接合位置接合芯轮滑轮[45]和滑轮段[48]的第一组和第二组配合特征。 环形驱动构件[47]和芯轮之间的接触限定了接触区[CZ]。 当皮带轮段[48]在接触区域[CZ]的外部时，致动器[80]致动接合位置和非啮合位置之间的滑轮段[48]。 滑轮段组中的一个滑轮段[48]是相对于护理滑轮[45]定位的关键滑轮段[48a]，使得当滑轮段[48a]被致动到接合位置并旋转时 在接触区[CZ]中，环形驱动构件[47]的对应的配合特征与芯轮滑轮[45]的第一组配合特征和钥匙皮带轮段[...]的第二组匹配特征[52] 48a]，没有引起显着的松弛或紧张。
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公开(公告)号：US08393984B2
公开(公告)日：2013-03-12
申请号：US12495977
申请日：2009-07-01
IPC分类号： F16H59/00
摘要： An IVT machine includes an input shaft, a drive wheel on the input shaft, an output shaft, a ratio changing device which is mounted on the output shaft, an endless belt which passes over the drive wheel and in an open loop on the ratio changing device, control elements for enlarging and reducing the belt loop dimension about the output shaft axis, belt guide elements providing a throat through which the belt enters and leaves its loop on the ratio changing device, and a drive arrangement on the ratio changing device for the transmission of drive power to the output shaft and is engaged with the belt in a portion of its loop on the device and engageable with the belt on both sides of the throat in its transition across the throat during rotation of the ratio changing device.
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