公开(公告)号：US11919359B2

公开(公告)日：2024-03-05

申请号：US16767850

申请日：2018-11-07

Applicant: Manitowoc Crane Group France SAS

Inventor： Bernd Backes ,  Dieter Stuhrwoldt ,  Frank C. Schnittker

IPC: B60G3/20 ,  B60K7/00 ,  B62D5/12 ,  B66C9/14 ,  B62D5/06 ,  B66C23/00

CPC classification number: B60G3/20 ,  B60G3/202 ,  B60K7/0007 ,  B60K7/0015 ,  B62D5/12 ,  B66C9/14 ,  B60G2200/14 ,  B60G2300/06 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60Y2200/416 ,  B62D5/061 ,  B66C23/54 ,  B66C2700/0378

Abstract: A mobile crane drive assembly axle includes mutually independent suspensions of wheel carriers arranged on both sides of the drive assembly frame of the mobile crane. The suspensions each include at least one transverse control arm which couples the wheel carrier onto the drive assembly frame and is connected to the drive assembly frame such that it can be rotated about an axis which extends substantially parallel to the longitudinal axis of the drive assembly frame.

公开(公告)号：US20230264735A1

公开(公告)日：2023-08-24

申请号：US18017132

申请日：2021-07-21

Applicant: Weber-Hydraulik GmbH

Inventor： Torsten WINKLER

IPC: B62D5/06 ,  B62D5/12 ,  B62D5/26 ,  B62D5/30

CPC classification number: B62D5/061 ,  B62D5/12 ,  B62D5/26 ,  B62D5/30

Abstract: A hydraulic rear axle steering for multi-axle vehicles, including a steering cylinder with a piston and two working chambers. The steering cylinder has a mechanical blocking device, which blocks the piston when it reaches a central position within the steering cylinder. The blocking device has a blocking member, which is retained in an engaged position by a locking element in the blocked state. The locking element is movable by a separate, hydraulically actuated actuator between a blocking position and a first unblocking position in which the locking element releases the blocking element. An admission-pressure-controlled load safety valve is provided for each working chamber, and control connections of the valves are connected to a pressure line leading to the respective other working chamber. The actuator is adjusted such that, when a lower, first pressure value is applied, the locking element moves into the unblocking position, and the valves are adjusted such that, when a higher, second pressure value is applied, the valves open towards the tank.

公开(公告)号：US20230166790A1

公开(公告)日：2023-06-01

申请号：US17922744

申请日：2021-04-16

Applicant: Caterpillar SARL

Inventor： Matthew Lee DIXON ,  Steven Edward JOHNSON ,  Adam J. ADEEB

IPC: B62D5/12 ,  B62D12/00 ,  B62D5/06 ,  B62D5/09 ,  F15B15/14

CPC classification number: B62D5/12 ,  B62D5/09 ,  B62D5/061 ,  B62D12/00 ,  F15B15/1447

Abstract: A steering system for an articulated truck. The articulated truck is formed of a tractor and a trailer and an articulation joint. The steering system includes a hydraulic cylinder, with a cylinder barrel and a piston. The steering system provides for changes in angle between the tractor and the trailer. The hydraulic cylinder includes a snubbing tube projecting into the cylinder barrel. A hydraulic fluid passage opens into the cylinder barrel within the snubbing tube. The snubbing tube includes a main slot and a plurality of channels each extending between an interior and an exterior of the snubbing tube. The plurality of channels have a cross sectional area smaller than a cross sectional area of the main slot. When the articulated truck is steered, the piston moves in the cylinder barrel and the snubbing tube dampens the movement to prevent forces generated by the piston damaging the articulated truck.

公开(公告)号：US20180118255A1

公开(公告)日：2018-05-03

申请号：US15853526

申请日：2017-12-22

Applicant: Steering Solutions IP Holding Corporation

Inventor： Albert C. Wong ,  Thomas C. Rytlewski ,  Jason A. Dutsky

IPC: B62D5/06 ,  B62D5/12 ,  F15B15/22 ,  F15B15/14

CPC classification number: B62D5/061 ,  B62D5/12 ,  F15B15/1447 ,  F15B15/149 ,  F15B15/204 ,  F15B15/225 ,  F16K15/183

Abstract: A self-setting valve assembly for a power steering gear assembly includes a plug, a first plunger, a second plunger, and a biasing member. The plug extends between a first end and a second end. The plug defines a cavity that is disposed between the first end and the second end, a first bore that extends from the first end to the cavity, and a second bore that extends from the second end to the cavity. The first plunger has a first head that is disposed within the cavity and a first stem that extends from the first head through the first bore. The second plunger has a second head that is disposed within the cavity and a second stem that extends from the first head through the second bore. The biasing member is disposed within the bore and extending between the first head and the second head.

公开(公告)号：US20150239498A1

公开(公告)日：2015-08-27

申请号：US14706765

申请日：2015-05-07

Applicant: Xuzhou Heavy Machinery Co., Ltd.

Inventor： Peilei Cao ,  Zhifang Wang ,  Guangguang Cao ,  Honggang Ding ,  Yongliang Zhang ,  Jiandong Wang

IPC: B62D5/20 ,  B62D5/065 ,  B62D5/12 ,  B62D5/06

CPC classification number: B62D5/20 ,  B62D5/061 ,  B62D5/062 ,  B62D5/065 ,  B62D5/12 ,  B62D7/144 ,  B66C23/36

Abstract: Disclosed are a follow-up steering control system for a multi-axle automobile crane and the multi-axle automobile crane. In a steering state of the multi-axle automobile crane, an output oil pressure of a first oil pressure output port is greater or less than that of a second oil pressure output port; a piston rod of a left-turning hydraulic cylinder is lengthened and a piston rod of a right-turning hydraulic cylinder is shortened, or the piston rod of the left-turning hydraulic cylinder is shortened and the piston rod of the right-turning hydraulic cylinder is lengthened; and a first knuckle arm and a second knuckle arm are driven to make a rear left steering wheel and a rear right steering wheel turn left or right.

Abstract translation: 公开了一种用于多轴汽车起重机和多轴汽车起重机的后续转向控制系统。 在多轴汽车起重机的转向状态下，第一油压输出口的输出油压大于或小于第二油压输出口的输出油压; 左转液压缸的活塞杆延长，右转液压缸的活塞杆缩短，左转液压缸的活塞杆缩短，右转液压缸的活塞杆 延长了 并且驱动第一转向节臂和第二转向节臂，以使左后方向盘和右后方向盘向左或向右转动。

公开(公告)号：US20130048410A1

公开(公告)日：2013-02-28

申请号：US13528186

申请日：2012-06-20

Applicant: Shogo ISHIKAWA ,  Sosuke SUNAGA

Inventor： Shogo ISHIKAWA ,  Sosuke SUNAGA

IPC: B62D5/08

CPC classification number: B62D5/061 ,  B62D5/22 ,  B62D5/24

Abstract: In a stroke-limiter equipped integral power steering apparatus, a valve body of a spring-loaded-plunger-equipped limiter valve is configured to enable a position of the valve body relative to a housing to be adjusted in a longitudinal direction of the valve body via an intermediate sleeve.

Abstract translation: 在配备有行程限制器的整体动力转向装置中，具有弹簧加载柱塞的限位阀的阀体构造成能够使阀体相对于壳体的位置沿阀体的纵向方向调节 通过中间套筒。

公开(公告)号：US07258034B2

公开(公告)日：2007-08-21

申请号：US10330191

申请日：2002-12-30

Applicant: Dae-Jung Kim

Inventor： Dae-Jung Kim

IPC: B62D5/22

CPC classification number: B62D5/22 ,  B62D5/061 ,  B62D5/12 ,  Y10T74/1967

Abstract: Disclosed is an apparatus for protecting impact to a rack bar of a power steering gearbox comprising an oil pressure cylinder, to which oil which has passed through an oil pressure pump and a rotary valve is supplied through a left port or right port, a rack bar disposed in the oil pressure cylinder and horizontally reciprocating, a piston fixed at the middle of the rack bar, a first lack bush and a second lack bush disposed at both ends of the cylinder, in which the piston moves, to close the cylinder, and bypass holes with a downward convex shape disposed at both ends of the cylinder adjacent to the first and second rack bushes, in which a part of oil pressure is released immediately before a piston of the rack bar moving by the power of oil pressure reaches a rack bush, whereby impact to the cylinder or noise is not generated.

Abstract translation: 公开了一种用于保护对动力转向齿轮箱的齿条的冲击的装置，包括油压缸，通过油压泵和旋转阀的油通过油压缸通过左端口或右端口提供，齿条杆 设置在油压缸中并水平往复运动，固定在齿条的中间的活塞，设置在活塞移动的气缸的两端的第一缺油衬套和第二缺油衬套，以关闭气缸，以及 设置在与第一和第二齿条衬套相邻的气缸的两端处的向下凸起的旁通孔，其中在通过油压力移动的齿条的活塞到达齿条之前立即释放一部分油压 衬套，从而不产生对气缸或噪音的冲击。

公开(公告)号：US07168360B2

公开(公告)日：2007-01-30

申请号：US11086425

申请日：2005-03-23

Applicant: Gianni Massaccesi ,  Renzo Cuppi ,  Carlo Viappiani

Inventor： Gianni Massaccesi ,  Renzo Cuppi ,  Carlo Viappiani

IPC: F01B31/04 ,  B62D5/06

CPC classification number: B62D5/061 ,  B62D7/14

Abstract: A linear actuator for vehicle power steering systems with at least three steered wheels of a double-acting type that comprises a cylindrical body, closed at opposite ends; a piston, accommodated inside the cylindrical body axially slideable between the ends; and a stem, rigidly associated with the piston, coaxial to the cylindrical body, and protruding from at least one of the ends, the piston dividing the cylindrical body into two chambers, each provided with an inflow/outflow opening formed at the two opposite ends; and at least one pair of one-way valves, provided in the piston with a respective inlet connected to a respective chamber and outlets mutually connected, each valve having a stem slideably accommodated in the respective inlet with one end associated with a respective flow control element and the opposite end that protrudes externally from the piston, so as to open a respective valve.

Abstract translation: 一种用于车辆动力转向系统的线性致动器，其具有至少三个双作用类型的转向轮，其包括在相对端封闭的圆柱形主体; 活塞，容纳在所述筒体内部，所述活塞在所述端部之间可轴向滑动; 以及与所述活塞刚性地相关联的杆，其与所述圆柱体同轴并且从所述端部中的至少一个突出，所述活塞将所述圆柱体分成两个室，每个室具有形成在所述两个相对端处的流入/流出开口 ; 以及至少一对单向阀，其设置在活塞中，相应的入口连接到相应的室和相互连接的出口，每个阀具有可滑动地容纳在相应入口中的阀杆，一端与相应的流量控制元件相关联 以及从活塞向外突出的相对端，以打开相应的阀。

公开(公告)号：US06352016B1

公开(公告)日：2002-03-05

申请号：US09319508

申请日：1999-08-03

Applicant: Ulrich Asbrand ,  Jürgen Class

Inventor： Ulrich Asbrand ,  Jürgen Class

IPC: F01B106

CPC classification number: F15B21/008 ,  B62D5/061 ,  B62D5/062 ,  F16F9/348 ,  F16F2222/02 ,  Y10T137/7737

Abstract: A hydraulic power steering system, in which the servomotor also acts as a steering damper. Damper valves are arranged on hydraulic lines between the servomotor and servo valve. In order to compensate the temperature-dependent viscosity of the hydraulic medium, throttle elements of the damper valves cooperate with spring arrangements operating as a function of temperature (bimetallic springs, springs consisting of form memory alloy).

Abstract translation: 液压动力转向系统，其中伺服电动机还用作转向阻尼器。 减震阀布置在伺服电机和伺服阀之间的液压管路上。 为了补偿液压介质的温度依赖性粘度，阻尼阀的节流元件与作为温度的函数（双金属弹簧，由记忆合金形成的弹簧）起作用的弹簧布置协调。

公开(公告)号：US06318232B1

公开(公告)日：2001-11-20

申请号：US09568725

申请日：2000-05-11

Applicant: Norbert Lemke ,  Markus Gutzlaff

Inventor： Norbert Lemke ,  Markus Gutzlaff

IPC: F15B910

CPC classification number: B62D5/061

Abstract: The invention relates to a pressure-cutoff arrangement for an auxiliary power steering system in the end positions of the steering lock, having at least one working poston 2 which is displaceable in the axial direction in a steering housing 1 and delimits two working spaces I, II, cutoff valves 7, 17 associated with the working piston 2, and also stop elements 13, 23 which are associated with the steering housing 1 and are displaceable in the axial direction and against which one of the cutoff valves 7, 17 runs, in each case, in the end position and, in doing so, opens for the purpose of cutting off the pressure, and wherein the stop elements 13, 23 are fixed in a force-locking manner, with a retaining force which exceeds the opening force of the cutoff valves 7, 17, a spring 14, 24 acting in the radial direction.

Abstract translation: 本发明涉及一种用于辅助动力转向系统的转向锁的终端位置的压力切断装置，其具有至少一个在转向壳体1中沿轴向移动的工作柱2，并限定了两个工作空间I， II，与工作活塞2相关联的截止阀7,17，以及与转向壳体1相关联的止动元件13,23，其可沿轴向方向移动并与其中的一个截止阀7,17运行 每个壳体处于最终位置，并且在这样做时，为了切断压力而打开，并且其中止动元件13,23以强力锁定方式固定，其具有超过开启力的保持力 截止阀7,17，沿径向作用的弹簧14,24。