Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane

    公开(公告)号:US10647553B2

    公开(公告)日:2020-05-12

    申请号:US15774916

    申请日:2016-11-08

    申请人: Terex Global GmbH

    IPC分类号: B66C23/70 B66C23/68 B66C23/82

    摘要: A mobile crane having a main jib that is mounted thereupon for luffing and that can be oriented by means of a luffing cylinder, and a main jib extension which is detachably connected to a main jib head of the main jib by upper and lower bolts, it being possible to angle the main jib extension about a luffing axis relative to the main jib proceeding from a base position following release of the upper or lower bolts and using an angle drive, the angle drive engaging with a foot of the main jib extension, a maximum angling angle being delimited by an adjustable angling plate, and the angling plate engaging with the foot of the main jib extension and the main jib head. The angle drive is a component of an angling plate in the form of a combi-angling plate.

    MOBILE CRANE AND METHOD FOR ANGLING A MAIN JIB EXTENSION RELATIVE TO A MAIN JIB OF A MOBILE CRANE

    公开(公告)号:US20180346291A1

    公开(公告)日:2018-12-06

    申请号:US15774738

    申请日:2016-11-08

    申请人: Terex Global GmbH

    IPC分类号: B66C23/70 B66C23/82

    CPC分类号: B66C23/702 B66C23/68

    摘要: A mobile crane having a main jib that is mounted thereupon for luffing and that can be oriented by means of a luffing cylinder, and a main jib extension that is detachably connected to a main jib head of the main jib by means of upper and lower bolts, it being possible to angle the main jib extension about a luffing axis relative to the main jib proceeding from a base position following release of the upper or lower bolts and using an angle drive, the angle drive engaging with a foot of the main jib extension, a maximum angling angle being delimited by an adjustable angling plate, and the angling plate engaging with the foot of the main jib extension and the main jib head. The angle drive may be a component of an angling plate in the form of a combi-angling plate.

    Mobile crane and method for angling a main boom extension in relation to a main boom of a mobile crane

    公开(公告)号:US10781083B2

    公开(公告)日:2020-09-22

    申请号:US15778124

    申请日:2016-11-22

    申请人: Terex Global GmbH

    摘要: A mobile crane comprising a main boom, which is supported on the mobile crane in such a way that the main boom can be rocked and which can be put upright by means of an elevating cylinder, and a main boom extension, which is releasably connected to a main boom head of the main boom by upper and lower pins. The main boom extension, proceeding from a home position, can be angled in relation to the main boom about a rocking axis by means of an angle drive after the upper pins have been released, which angle drive acts on a base of the main boom extension, where a drive of the mobile crane provided for a different task provides the kinetic energy for the angle drive. The angle drive is designed in such that a telescoping cylinder of the main boom provides the kinetic energy for the angle drive.

    Method of controlling a hydropneumatic suspension of a vehicle crane

    公开(公告)号:US10730360B2

    公开(公告)日:2020-08-04

    申请号:US15998768

    申请日:2018-08-16

    申请人: Terex Global GmbH

    摘要: A method for controlling a hydropneumatic suspension of a mobile crane having at least four wheels that are each allocated a spring cylinder, having at least four spring circuits in which at least one spring cylinder is incorporated in each case, each spring circuit being allocated a pressure measurement sensor and a path measurement sensor, in which signals of the pressure measurement sensors and of the path measurement sensors are processed by a control unit, and the spring cylinders are actuated. To optimize control of a hydropneumatic suspension for road travel operation of the mobile crane the mobile crane is levelled using preset suspension height set values of the spring circuits, then, in the control unit, on the basis of pressures detected by pressure sensors, pressure set values are calculated per spring circuit and pressures in the spring circuits are readjusted with the aid of pressure set values.