公开(公告)号：US11982352B2

公开(公告)日：2024-05-14

申请号：US18009181

申请日：2020-10-22

申请人： Ashlyn Antony

发明人： Narayanankutty Pramod Perinchery

IPC分类号： F16H7/08 ,  F16H7/06

CPC分类号： F16H7/0834 ,  F16H7/06 ,  F16H7/08 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/087 ,  F16H2007/0891 ,  F16H2007/0895 ,  F16H2007/0897

摘要： The present disclosure discloses an apparatus (100) for eliminating slack and vibrations of the chain (400) comprising a piston-cylinder arrangement. A first piston (10) is configured to be displaced inside the cylinder (20) of the piston-cylinder arrangement and a second piston (30) is configured to be displaced inside a cavity (40) defined inside the first piston (10) with the axis of the cavity (40) being coaxial with the axis (A) of the cylinder. A lubricating oil passage (50) defined to pass through the first piston (10), the second piston (30) and the cylinder (20) of the piston cylinder arrangement. The apparatus facilitates reduction in vibrations, slack elimination and automatic lubrication of the chain drive.

公开(公告)号：US11828206B1

公开(公告)日：2023-11-28

申请号：US18055020

申请日：2022-11-14

申请人： BorgWarner, Inc.

发明人： Paul Freemantle ,  Dale N Smith

IPC分类号： F01L1/24 ,  F16H7/18 ,  F01L1/02 ,  F16H7/08

CPC分类号： F01L1/24 ,  F01L1/022 ,  F16H7/18 ,  F16H2007/0812

摘要： A hydraulic tensioner having a piston sliding around an outside surface of a pin or rod, so that the high pressure chamber for chain control is created by the area between the piston internal diameter and the rod outside diameter. A spring around the outside of the rod presses against the bottom of the piston, biasing the piston outward during low oil pressure conditions. Preferably, the piston is steel and the rod is aluminum, the reverse of prior art designs, which means that as temperature increases, the piston to bore clearance reduces. This can offset the oil viscosity reduction and maintain the same performance over operating temperatures.

公开(公告)号：US20190195123A1

公开(公告)日：2019-06-27

申请号：US16225139

申请日：2018-12-19

申请人： TSUBAKIMOTO CHAIN CO.

发明人： Yoshitaka Iwasaki ,  Masanori Watanabe ,  Osamu Yoshida ,  Yuji Kurematsu

IPC分类号： F02B67/06 ,  F16H7/08

CPC分类号： F02B67/06 ,  F16H7/0829 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0863

摘要： To provide a tensioner that has a simple structure and is easy to assemble, and is configured to smoothly relieve pressure during oil release with reduced flow resistance so that the oil pressure in an oil pressure chamber is kept stable in a favorable manner. A relief valve unit includes a cap member that fits with a seat member to retain a stopper member inside the seat member. An external relief hole, which causes a relief-side space in a plunger hole to communicate with the outside of a plunger, opens radially in an outer circumferential surface of the plunger.

公开(公告)号：US20180319613A1

公开(公告)日：2018-11-08

申请号：US15970069

申请日：2018-05-03

申请人： BUTECH, INC.

发明人： John R. Buta

IPC分类号： B65H29/12 ,  F16H7/12 ,  B65H20/06 ,  B65H23/18

CPC分类号： B65H29/12 ,  B65H5/023 ,  B65H20/06 ,  B65H23/18 ,  B65H2404/2321 ,  B65H2404/255 ,  B65H2404/265 ,  B65H2404/2691 ,  F16H7/1263 ,  F16H2007/0812 ,  F16H2007/0891

摘要： A traction tensioning device which has one or more upper chain assemblies driven by an upper sprocket pulley and one or more lower chain assemblies driven by a lower sprocket pulley. Each of the upper and lower chain assemblies has a plurality of pads mounted to the chain assemblies. The upper chain assembly is mounted to a movable platen. The lower chain assembly is mounted to a fixed platen. The upper chain assembly and the movable platen are raised and lowered with respect to the lower chain assembly thereby creating a tension on a strip of material passing between the upper and lower chain assemblies.

公开(公告)号：US10082195B2

公开(公告)日：2018-09-25

申请号：US15170127

申请日：2016-06-01

申请人： Schaeffler Technologies AG & Co. KG

发明人： Satoru Yokoyama

IPC分类号： F16H7/22 ,  F16H7/08

CPC分类号： F16H7/0829 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0878

摘要： A linear tensioner is provided for tensioning a traction mechanism provided in a drive system with a first adjustment element that has a hollow-cylindrical construction and a second adjustment element that is guided so that it can be moved longitudinally on this first element, wherein contact surfaces are formed on facing end surfaces of the adjustment elements, on which a compression spring actuating at least one of the adjustment elements in the tensioning direction is supported. A transport securing device is provided that prevents, in a specified locked position, a movement of the adjustment elements relative to each other by at least one locking element.

公开(公告)号：US10077825B2

公开(公告)日：2018-09-18

申请号：US14772078

申请日：2014-03-06

申请人： BorgWarner Inc.

发明人： Kevin B. Todd ,  Dale N. Smith ,  Robert G Williamson ,  Fenton O'Shea

IPC分类号： F16H7/22 ,  F16H7/08 ,  F02B67/06

CPC分类号： F16H7/0836 ,  F02B67/06 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0893

摘要： A tensioner for tensioning a chain or belt span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain or belt tension as low as possible without sacrificing chain or belt control, significantly improving drive efficiency at new chain or belt conditions and conditions with dynamic loads.

公开(公告)号：US09995374B2

公开(公告)日：2018-06-12

申请号：US15278103

申请日：2016-09-28

申请人： DEERE & COMPANY

发明人： Henry D. Anstey ,  Daniel E. Derscheid

IPC分类号： F16H7/22 ,  F16H7/08 ,  F16H7/12 ,  A01F15/08 ,  A01D69/00 ,  A01D69/03 ,  A01D69/08 ,  F16H7/00

CPC分类号： F16H7/1281 ,  A01D69/002 ,  A01D69/03 ,  A01D69/08 ,  A01F15/0841 ,  F16H7/00 ,  F16H7/08 ,  F16H2007/0812 ,  F16H2007/0865 ,  F16H2007/0885 ,  F16H2007/0893

摘要： A drive system for an agricultural work machine having a primary drive system configured to drive a performance system for performing a crop preparation or handling operation including a fluid motor, a fluid pump and a tensioner system. The fluid motor is configured to produce a drive force and to be driven by a flow of fluid moving through the motor. The fluid pump is operatively connected to the fluid motor and is configured to drive the fluid motor. The tensioner system is operatively connected to the fluid motor and to the fluid pump, wherein the direction of fluid flow through the fluid motor adjusts the application of at least one force applied to a belt in the drive system. The fluid motor is configured to adjust the force applied to the belt by regulating a belt tension in proportion to a torque provided by the fluid motor.

公开(公告)号：US20180087237A1

公开(公告)日：2018-03-29

申请号：US15615347

申请日：2017-06-06

申请人： Robert Carl Rajewski

发明人： Robert Carl Rajewski

IPC分类号： E02F3/90 ,  E02F9/08 ,  E02F3/88 ,  F16H7/08 ,  E02F9/20

CPC分类号： E02F3/90 ,  B60P1/04 ,  B60P3/243 ,  E02F3/8816 ,  E02F9/08 ,  E02F9/20 ,  F16H7/08 ,  F16H2007/0812

摘要： A hydrovac having a chassis, a mud tank and water tank assembly mounted on the chassis, a hydraulic lift assembly capable of raising the mud tank and water tank assembly through a dump angle, the mud tank having a floor, and the floor of the mud tank deepens forwardly. A belt drive is provided for a blower of the hydrovac, along with belt tensioning system.

公开(公告)号：US20170356529A1

公开(公告)日：2017-12-14

申请号：US15617267

申请日：2017-06-08

申请人： BorgWarner Inc.

发明人： Sean R. SIMMONS

IPC分类号： F16H7/08

CPC分类号： F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0855 ,  F16H2007/0859 ,  F16H2007/0872 ,  F16H2007/0893 ,  F16H2007/0897

摘要： A variable force tensioning assembly creates and maintains a tension force on an endless loop used to transmit power. The variable force tensioning assembly includes a body having a cylinder defining a cylinder inner diameter. An outer piston is disposed substantially within the cylinder and slidable therewithin. The outer piston includes an outer piston tube and a chamber divider extending through the outer piston tube. The outer piston and the body define a low rate portion. An inner piston is disposed at least partially within the outer piston tube and is slidable therewithin. The inner piston defines a high rate portion and acts with the outer piston against the body to create a variable force to push against the endless loop to maintain a constant tension in the endless loop.

公开(公告)号：US20170255222A1

公开(公告)日：2017-09-07

申请号：US15507558

申请日：2015-06-01

申请人： Schaeffler Technologies AG & Co. KG

发明人： Thomas Ullein ,  Matthias Goeb

IPC分类号： G05G5/06 ,  F16H7/08

CPC分类号： G05G5/06 ,  F16H7/08 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0878 ,  F16H2007/0891 ,  F16H2057/0093

摘要： A tensioning device (1) for tensioning a traction mechanism of a traction mechanism drive, including a housing (2), a piston (3) that is mounted such that the piston can be displaced in an axial direction inside the housing (2), and a transport securing element (4), which in at least one transport position of the tensioning device (1) is arranged in the housing (2) transversely to the piston (3) and in abutment with the piston (3) such that a displacement of the piston (3) in at least one first axial direction is blocked. The transport securing element (4) is provided with a support portion (5), wherein in the transport position at least one first web area (6) of the support portion (5) is in abutment with one end face (7) of the piston (3), and an additional web area (8) of the support portion (5) extending in an axial direction away from the first web area (6) is supported in the housing (2), at least in a radial direction.