Federungssystem
    51.
    发明公开

    公开(公告)号:EP1918136A1

    公开(公告)日:2008-05-07

    申请号:EP07118184.6

    申请日:2007-10-10

    申请人: Deere & Company

    发明人: Bitter, Marcus

    摘要: Es wird ein Federungssystem für ein land- oder bauwirtschaftliches Fahrzeug (10) beschrieben. Das Federungssystem (22) umfasst zwei Hydraulikzylinder (18, 20), die einen Rahmen (12) gegenüber einer Achse (14, 16) des Fahrzeugs (10) abstützen, wobei die Hydraulikzylinder (18, 20) jeweils eine kolbenseitige Kammer (26, 28) und eine kolbenstangenseitige Kammer (30, 32) aufweisen und wobei jeweils die Kammern (26, 28, 30, 32) der Hydraulikzylinder (18, 20) über mit einem Schaltventil (42, 44) versehene Verbindungsleitungen (34, 36, 38, 40) miteinander verbindbar sind, eine erste Versorgungsleitung (46), die über ein Schaltventil (50) mit der kolbenseitigen Verbindungsleitung (36) des ersten Hydraulikzylinders (18) verbindbar ist, eine zweite Versorgungsleitung (48), die über ein Schaltventil (52) mit der kolbenseitigen Verbindungsleitung (40) des zweiten Hydraulikzylinders (20) verbindbar ist, jeweils einen mit den Versorgungsleitungen (46, 48) über proportional verstellbare Blenden (58, 64) verbindbaren Hydraulikspeicher (54, 60), eine Hydraulikquelle (126), einen Hydrauliktank (100), eine Steuerventileinrichtung (24, 24') und eine elektronische Steuereinheit (120). Um die Aktivierung eines Federungszustands in kritischen Fahrzeugzuständen zu vermeiden, wird vorgeschlagen, dass Mittel zur Detektion und Kompensation von Lastzuständen des Fahrzeugs (10) im Federungssystem (22) vorgesehen sind.

    摘要翻译: 一种用于相对于车辆轴(14,16)支撑车架(12)的悬架系统具有带有活塞侧室和活塞杆侧室的液压缸。 每个室可以通过相应的连接线彼此连接。 活塞杆侧连接线具有连接到活塞侧连接线的供应线。 第二供应管线连接到第二气缸的活塞侧连接管线。 液压蓄能器通过可调节孔连接,检测单元检测并补偿车辆负载状态。

    Axle tilt control apparatus for industrial vehicles
    54.
    发明公开
    Axle tilt control apparatus for industrial vehicles 有权
    Einrichtung zur Steuerung der Neigung einer Achse eines Industriefahrzeuges

    公开(公告)号:EP0916526A3

    公开(公告)日:2004-06-30

    申请号:EP98121633.6

    申请日:1998-11-12

    摘要: An axle tilt control apparatus for forklifts is disclosed. The forklift includes a rear axle (13) pivotally supported by a body frame (2) and a rear axle (50) rigidly fixed to the body frame (2). A mast (3) is supported at the front portion of the body frame (2) to tilt forward and backward. Forks (5) are supported by the mast (3) to be lifted and lowered. The center of gravity of the forklift in the fore-and-aft direction approaches the front axle (50) as the mast (3) is tilted forward. Pivoting of the rear axle (13) is restricted by the hydraulic cylinder (17) when the height of the forks (5) is higher than a predetermined height determination value (HA) and the weight of a load on the forks (5) is heavier than a predetermined weight determination value (WA) to improve the vehicle's stability. The weight determination value (WA) increases as the mast (3) is tilted forward. When a load on the forks (5) is being unloaded, tilting of the rear axle (13) is permitted regardless of the height of the forks (5) and the weight of the load on the forks (5). Therefore, the rear axle (13) is not unnecessarily locked.

    摘要翻译: 公开了一种用于叉车的轴倾斜控制装置。 叉车包括由主体框架(2)可枢转地支撑的后轴(13)和刚性地固定到车身框架(2)的后轴(50)。 桅杆(3)被支撑在车身框架(2)的前部,以向前和向后倾斜。 叉(5)由桅杆(3)支撑以被提升和降低。 当桅杆(3)向前倾斜时,叉车在前后方向上的重心接近前轴(50)。 当叉(5)的高度高于预定的高度确定值(HA)时,后轴(13)的转动受到液压缸(17)的限制,并且货叉(5)上的负载的重量为 比预定重量确定值(WA)重,以提高车辆的稳定性。 当桅杆(3)向前倾斜时,重量确定值(WA)增加。 当叉子(5)上的负载被卸载时,不管叉(5)的高度和货叉(5)上的载荷的重量如何,都允许后轴(13)的倾斜。 因此,后轴(13)不会被不必要地锁定。

    Installation position of a damper for industrial vehicles
    58.
    发明公开
    Installation position of a damper for industrial vehicles 有权
    在ein Nutzfahrzeug的einbaupositionfüreineDämpfungsvorrichtung

    公开(公告)号:EP0965468A2

    公开(公告)日:1999-12-22

    申请号:EP99111676.5

    申请日:1999-06-16

    IPC分类号: B60G13/00

    摘要: A forklift (1) has a frame (4) and a rear axle (3), which is pivotally joined to the frame (4) about a center pivot axis. Front and rear supporting members support the frame on the axle. A damper (9) is located between the frame (4) and the axle (3). The damper (9) has an upper end connected to the frame (4) and a lower end connected to the axle (3). A bracket (25, 27) for joining the upper end of the damper to the frame is located no further forward than the front end of the front support member (22) and no further rearward than the rear support member (22). This structure suppresses torsion and bending force applied to the damper.

    摘要翻译: 叉车(1)具有围绕中心枢转轴线枢转地连接到框架(4)的框架(4)和后轴(3)。 前支撑构件支撑轴上的框架。 阻尼器(9)位于框架(4)和轴(3)之间。 阻尼器(9)具有连接到框架(4)的上端和连接到轴(3)的下端。 用于将阻尼器的上端连接到框架的支架(25,27)不比前支撑构件(22)的前端更向前,而不比后支撑构件(22)更靠后。 该结构抑制施加到阻尼器的扭转力和弯曲力。

    Axle tilt control method and apparatus for industrial vehicles
    59.
    发明公开
    Axle tilt control method and apparatus for industrial vehicles 审中-公开
    用于限制用于工业车辆的车轴的侧向倾斜的方法和装置

    公开(公告)号:EP0913278A2

    公开(公告)日:1999-05-06

    申请号:EP98120502.4

    申请日:1998-10-29

    IPC分类号: B60G17/005

    摘要: An industrial vehicle has a body frame (1a) and an axle (10) pivotally supported by the body frame. The vehicle also includes a damper (13) located between the body frame and the axle. An passage supplies oil to the damper in accordance with tilting of the axle and receives oil discharged from the damper. A control valve (14) is located in the passage to control oil flow into and out of the damper. A tilt angle sensor detects the tilt angle of the axle. A controller controls the control valve in accordance with locking conditions for locking and unlocking the axle. When the locking conditions are not satisfied, the controller monitors whether the tilt angle of the axle detected by the tilt angle sensor exceeds a predetermined maximum tilt angle. The controller locks the axle if the tilt angle exceeds the maximum tilt angle, and thereafter unlocks the axle if the forces on the rear axle tend to decrease the tilt angle.

    摘要翻译: 一种工业车辆具有一车架(1a)和在轴(10)由主体框架枢转地支撑。 因此车辆包括位于所述主体框架和轴之间的缓冲器(13)。 在通道中雅舞蹈与车轴的倾斜油供给到阻尼器和接收油从阻尼器排出。 的控制阀(14)位于所述通道,以控制油流入和流出阻尼器的。 的倾斜角传感器检测轴的倾斜角。 控制器控制与锁定用于锁定和解锁车轴条件雅舞蹈的控制阀。 当锁定条件未被满足时,控制器监视是否通过倾斜角传感器检测出的轴的倾斜角超过预定的最大倾斜角。 该控制器锁定该轴,如果倾斜角超过最大倾斜角,并且此后解锁车轴如果在后轴的力倾向于降低的倾斜角。