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公开(公告)号：US12104624B2
公开(公告)日：2024-10-01
申请号：US17457413
申请日：2021-12-02
申请人： EMTW Production AB
发明人： Arne Henriksson
IPC分类号： F15B15/16 , B60G3/01 , B62D5/04 , B62D7/02 , B62D7/06 , F15B15/06 , F15B15/14 , F16N7/36 , F15B15/02
CPC分类号： F15B15/16 , B60G3/01 , B62D5/0418 , B62D7/023 , B62D7/06 , F15B15/063 , F15B15/149 , F16N7/36 , F15B15/02
摘要： A device and a system for controlling the turning of an object includes a shaft enclosing a first space, and a sleeve forming a second space between the shaft and the sleeve. Movement of the sleeve is transmitted to movement of the object. The device further comprises a housing comprising means for rotating the shaft and at least one inlet for a lubricant, and a lubricant collector. The shaft has a first through hole extending from the first space to the second space, and the sleeve has at least a second through hole for providing the second space in fluid communication with the lubricant collector. The housing is in fluid communication with the second space, and the first space is pressurizeable for causing the lubricant in the second space to be displaced through the second through hole and collected in the lubricant collector.
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公开(公告)号：US12024024B2
公开(公告)日：2024-07-02
申请号：US17268355
申请日：2019-06-14
发明人： Markus Hirt , Frank Jeske , Joerg Hornberger , Manfred Bitzer
CPC分类号： B60K7/0007 , B60K17/043 , B60K17/30 , B62D5/0418 , B60K2007/003 , B60K2007/0084 , B60L15/2009 , B60L2220/42
摘要： A wheel drive module comprises wheel (R), speed modulation gearbox (G), first electric motor (M1), and second electric motor (M2). First and second electric motors (M1, M2) jointly drive wheel (R) about wheel axis (A) by the speed modulation gearbox (G) and steer said wheel about steering axis (L). Wheel drive module comprises first motor electronics (10) for controlling first electric motor (M1) and second motor electronics (20) for controlling second electric motor (M2) and central electronics (30) connected to first and second motor electronics (10, 20), allowing a signal transfer. Wheel drive module comprises control logic for controlling first and second electric motors (M1, M2), which logic is provided by first and second motor electronics (10, 20), central electronics (30), application electronics (40) connected to the central electronics (30), allowing a signal transfer, or jointly by the central electronics (30) and the first and second motor electronics (10, 20).
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公开(公告)号：US20230356768A1
公开(公告)日：2023-11-09
申请号：US18220526
申请日：2023-07-11
申请人： NTN CORPORATION
发明人： Satoshi UTSUNOMIYA , Yusuke OHATA
CPC分类号： B62D5/0418 , B62D5/0403 , B62D5/0442 , B62D7/08
摘要： A hub unit with a steering function includes: a hub bearing that rotatably supports a wheel; a cylindrical turning shaft section extending from an outer ring thereabove and thereunder with the outer ring being located at an outer peripheral surface of an outer race of the hub bearing; a steering actuator that causes the hub bearing to rotate about an axis of the turning shaft section; a unit support member that rotatably supports the hub bearing about the axis on a vehicle body; and an arm section projecting from the outer ring rearward of a vehicle, with the actuator being coupled to the arm section. The actuator includes: an extensible and retractable assembly capable of providing extension or retraction in a direction perpendicular to the axis; and the extensible and retractable assembly is coupled to the arm section through a joint assembly providing two or more directions of freedom.
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公开(公告)号：US20230286788A1
公开(公告)日：2023-09-14
申请号：US18017309
申请日：2021-06-14
发明人： Gerhard HABEDANK , Frank HALTERMANN
CPC分类号： B66F9/07568 , B62D5/0418 , B62D7/142
摘要： The present invention relates to a wheel arm forklift truck (1), preferably as an automated guided vehicle, comprising a front end (10c) having at least, preferably exactly, two steerable drive rollers (11a, 11b); comprising at least one first wheel arm (10a) which extends in a straight line away from the front end (10c) and is fixedly connected to the front end (10c), wherein the first wheel arm (10a) has at least, preferably exactly, one first roller (12a); and comprising at least one first fork arm (15a) which is located above the first wheel arm (10a) in the vertical direction (Z) and is designed to be raised and lowered in the vertical direction (Z). The wheel arm forklift truck (1) is characterized in that the first roller (12a) of the first wheel arm (10a) is steerable through at least 90°.
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公开(公告)号：US11731693B2
公开(公告)日：2023-08-22
申请号：US17032467
申请日：2020-09-25
申请人： NTN CORPORATION
CPC分类号： B62D6/002 , B62D5/0418
摘要： Provided are a steering function-equipped hub unit that has a simple structure, high rigidity and a reduced size, a steering system, as well as a vehicle including the steering function-equipped hub unit. The steering function-equipped hub unit includes: a hub unit main body including a hub bearing supporting a wheel; a unit support member provided to a knuckle of a suspension device and rotatably supporting the hub unit main body about a turning axis extending in a vertical direction; and a steering actuator configured to rotationally drive the hub unit main body about the turning axis. The hub unit main body is supported by the unit support member through a preloaded rolling bearing.
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公开(公告)号：US20230257019A1
公开(公告)日：2023-08-17
申请号：US18139170
申请日：2023-04-25
发明人： Seok Ryung Kwon , Hyeon Sik Shin , Pan Keun Baek , Jun Hwan Park , Hun Keon Ko
CPC分类号： B62D5/0418 , B62D65/12
摘要： A movable object includes: a steering part including a wheel provided to rotate along a ground, a wheel rod connected to the wheel and extending in a direction away from the wheel, and a steering motor connected to the wheel rod to rotate the wheel rod and steer the wheel; and a cover part disposed on top of the steering part, and including a receiving member in which a portion of the steering part is received. When the steering motor rotates the wheel rod in one direction, the steering part is engaged with the receiving member so that the steering part and the cover part may be joined, and when the steering motor rotates the wheel rod in an opposite direction, the steering part is separated from the receiving member so that the steering part and the cover part may be disengaged.
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公开(公告)号：US20190023306A1
公开(公告)日：2019-01-24
申请号：US16047752
申请日：2018-07-27
CPC分类号： B62D5/046 , B62D3/02 , B62D5/0418 , B62D6/008 , B62D7/12 , B62D11/003 , B62D11/04
摘要： An electronic drive control system for a vehicle having a right and left drive wheels and a pair of actuators engaged to respective control arms of the associated variable drive units. A pair of speed sensors are in electrical communication with the respective variable drive units and a controller. The controller receives signals from the speed sensors and determines at least one operational output of each variable drive unit based on the received signals, calculates adjustments to at least one of the actuators and adjusts at least one of the actuators to move the respective control arm of the drive unit to effectuate the desired operational output of the variable drive units.
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8.发明申请公开(公告)号：US20180057044A1
公开(公告)日：2018-03-01
申请号：US15456264
申请日：2017-03-10
申请人： Jilin University
发明人： Bingzhao Gao , Haitao Ding , Hong Chen , Jianwei Zhang , Weinan Tao , Mengjian Tian
CPC分类号： B62D5/0484 , B62D3/04 , B62D5/001 , B62D5/003 , B62D5/0418 , B62D5/0421 , B62D5/043 , B62D5/046 , B62D5/0478 , B62D6/002 , B62D6/02 , B62D6/10 , B62D7/148 , B62D7/1509
摘要： An independent steering mechanism of controllable hydraulic locking type for left and right wheels is provided. The independent steering mechanism includes a power steering mechanism, a steering drive mechanism, a hydraulic locking mechanism and an electronic control unit. Power of the left and right steering motors flows through the worm, the worm gear, the gear to drive left and right racks to translate. Outer ends of the left and right racks are connected to left and right tie rods via spherical hinges respectively. Inner ends of the left and right racks are connected to a piston rod and a cylinder barrel via spherical hinges respectively. A left chamber and a right chamber in the hydraulic cylinder are connected to an oil reservoir via an electro-hydraulic valve. The left and right steering motor controllers for the left and right steering motor and the electro-hydraulic valve controller are communicated via CAN bus.
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公开(公告)号：US20170110931A1
公开(公告)日：2017-04-20
申请号：US15300534
申请日：2014-03-31
发明人： Shugang GONG
摘要： Disclosed is a shock absorption mechanism of a steering motor, comprising an upper cover buffering assembly (1), and an oil distributor (2) disposed below the upper cover buffering assembly (1), the oil distributor (2) being fitted with the upper cover buffering assembly (1) to form a sealed axial cavity (4). A cylinder assembly (5) is fixedly arranged below the oil distributor (2). The cylinder assembly (5) comprises a cylinder (51) opened at both ends, and an elastic oil bag (52) arranged in the cylinder (51) and having an opening at the upper end, the upper end of the elastic oil bag (52) being fixedly connected to an inner wall of the cylinder (51), and the upper end of the elastic oil bag (52) being in communication with the axial cavity (40). The cylinder (51) is further provided internally with a piston (53) axially sliding along the cylinder (51), the piston (53) being connected to the lower end of the elastic oil bag (52). The shock absorption mechanism for a steering motor overcomes the problem of member damage due to friction and the defect of susceptibility to temperature in a traditional hydraulic shock absorption system, so as to prolong the service life of the shock absorption mechanism.
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公开(公告)号：US20170110927A1
公开(公告)日：2017-04-20
申请号：US15300691
申请日：2014-04-02
发明人： Shugang GONG
IPC分类号： H02K5/04
摘要： Disclosed is a double oil passage structure of a steering motor, comprising an upper cover buffering assembly (1) and an oil distributor (2), which are fitted with each other to form an axial cavity (4), wherein an oil flow passage (23), an oil inlet (22) and a hollow column (21) are provided in the oil distributor (2), the oil flow passage (23) being in communication with the axial cavity (4), and an inner wall of the hollow column (21) being provided with an oil flow port in communication with the oil flow passage (23); a directional control valve (3) including a valve core (31) is provided in the hollow column (21), and a first radial cavity is formed between the hollow column (21) and the directional control valve (3) and partitioned by a pin (7) into oil inlet and outlet cavities (24, 25) of the oil distributor which are respectively in communication with the oil inlet (22) and the axial cavity (4); a directional control valve oil flow passage (33) is provided on an upper part of a side wall of a valve cavity (32), and an oil flow hole (34) is provided in a lower part; an annular oil flow groove (35) is provided on an outer wall of the valve core (31), and is in communication with the oil inlet and outlet cavities (24, 25) of the oil distributor; and a second radial cavity (36) is formed by an outer wall of the lower end of the valve core (31) and a side wall of the lower part of the valve cavity (32), and the lower part of the valve cavity (32) is provided with an oil outlet (37) in communication with the second radial cavity (36). The above double oil passage structure partitions the oil passage into two independent branch oil passages, so as to reduce the occupied space and reduce the volume of the motor.
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