Abstract: The invention relates to an auxiliary tip for detachable mounting on a boom of a work machine, in particular a mobile crane. The auxiliary tip comprises first connecting elements for establishing a first connection with a first boom part, and second connecting elements for establishing a second connection with the first boom part. In order to be able to connect the auxiliary tip to a second boom part having a system dimension different from the first boom part, the auxiliary tip according to the invention comprises third connecting elements with which a second connection to a second boom part can be established instead of the second connecting elements. While the auxiliary tip is connected to the first boom part via the first and second connecting elements, the auxiliary tip can be releasably connected to a second boom part via the third connecting elements.

Abstract: The present disclosure relates to a mobile crane that comprises an undercarriage having a chassis and comprises a superstructure that is rotatable about a vertical axis relative to the undercarriage and has a telescopic boom at whose tip a boom head is arranged. The boom has holding means at one side for the support of a folding boom that can be releasably installed at the boom head. The boom laterally has a console and a holding element arranged between the console and the boom head. The folding boom is pivotable about a vertical axis of the holding element for the installation at the boom head, while it is supported on the console. In accordance with the present disclosure, a first securing device is arranged in the region of the console by means of which a movement of the folding boom deviating from a pivot movement about a vertical axis can be limited. The present disclosure furthermore relates to a folding boom for a crane.

Abstract: The invention relates to a mobile crane, that comprises a mobile undercarriage and a superstructure rotatably supported on the undercarriage and having a boom and a ballasting device. The ballasting device picks up or places down one or more counterweight elements by means of a hoisting device. In accordance with the invention, a placement device is provided that is connected to the undercarriage and comprises at least one movable placement part that is movable from a travel position into a placement position and vice versa. In this respect, the travel position is characterized in that the length of the undercarriage is reduced, and the crane is travelable on the construction site, whereas the placement position is characterized in that counterweight elements can be placed on the placement part by means of the ballasting device and the length of the undercarriage is increased in comparison with the travel position.

Abstract: The invention relates to an apparatus for assembling and disassembling a mobile crane boom, in particular a telescopic boom, that comprises a support device that is attached or attachable to the mobile crane and/or to a transport vehicle on which the boom can be placed and fixed or locked, a roller cart on which the boom can be placed and that is movably stored or storable on the transport vehicle, and a guide mechanism that is attached or attachable to the transport vehicle and by means of which the roller cart is actively movable in parallel with the longitudinal axis of the boom. The invention further relates to a mobile crane having an apparatus in accordance with the invention and to a method of assembling a boom stored on a transport vehicle to a mobile crane using the apparatus in accordance with the invention.

Abstract: The disclosure relates to an assembly head for a telescopic boom that can be separated into an inner and an outer boom set and that is reversibly mountable at an inner telescopic section of the outer boom set. The assembly head comprises a pulley head having deflection pulleys and a telescopic tube section that is arranged the pulley head, that can be pushed into the inner telescopic section from its end, and that has a substantially smaller length than the inner telescopic section. The disclosure further relates to a separable telescopic boom having an assembly head in accordance with the disclosure, to a mobile crane having a telescopic boom in accordance with the disclosure, and to a method for the self-assembly of an assembly head in accordance with the disclosure at the outer boom set of a telescopic boom.

Abstract: The present disclosure relates to a mobile crane that comprises an undercarriage having a chassis and comprises a superstructure that is rotatable about a vertical axis relative to the undercarriage and has a telescopic boom at whose tip a boom head is arranged. The boom has holding means at one side for the support of a folding boom that can be releasably installed at the boom head. The boom laterally has a console and a holding element arranged between the console and the boom head. The folding boom is pivotable about a vertical axis of the holding element for the installation at the boom head, while it is supported on the console. In accordance with the present disclosure, a first securing device is arranged in the region of the console by means of which a movement of the folding boom deviating from a pivot movement about a vertical axis can be limited. The present disclosure furthermore relates to a folding boom for a crane.

Abstract: The application relates to a device for measuring the weight of a ballast assembly of a crane, and to a crane comprising a corresponding device. The device may include a ballast assembly coupled to the structure of the crane by seats, the seats may comprise a measurement shaft, and the measurement shaft deforming under a weight of the ballast assembly.

Abstract: The invention relates to a mobile crane having at least one ballast receiver that is vertically adjustable via one or more ballast cylinders and having a coupling for connecting the ballast cylinder or cylinders to the energy supply of the crane, wherein the energy supply can be releasably connected to the at least one ballast cylinder via at least one coupling part.

Abstract: The invention relates to a hook block base body for fastening to a pulley set of a hoisting apparatus having a plurality of deflection pulleys comprising a means for installing the hook block base body at the pulley set and a load suspension means for suspending a load, characterized by at least one projection element that is configured to cooperate with a deflection pulley on an installation of the hook block base body at the pulley set and only to permit an installation of the hook block base body at the pulley set when the deflection pulley cooperating with the projection element is rope-free.

Abstract: The application relates to a device for measuring the weight of a ballast assembly of a crane, and to a crane comprising a corresponding device. The device may include a ballast assembly coupled to the structure of the crane by seats, the seats may comprise a measurement shaft, and the measurement shaft deforming under a weight of the ballast assembly.

Abstract: A boom section for the boom of a telescopic crane has a lower shell and an upper shell. The lower shell and the upper shell are welded to one another, and the weld seam extends between the lower shell and the upper shell angled in at least one region to at least one section edge of the boom section.

Abstract: The invention relates to a mobile crane having at least one ballast receiver that is vertically adjustable via one or more ballast cylinders and having a coupling for connecting the ballast cylinder or cylinders to the energy supply of the crane, wherein the energy supply can be releasably connected to the at least one ballast cylinder via at least one coupling part.

Abstract: The invention relates to a hook block base body for fastening to a pulley set of a hoisting apparatus having a plurality of deflection pulleys comprising a means for installing the hook block base body at the pulley set and a load suspension means for suspending a load, characterized by at least one projection element that is configured to cooperate with a deflection pulley on an installation of the hook block base body at the pulley set and only to permit an installation of the hook block base body at the pulley set when the deflection pulley cooperating with the projection element is rope-free.

Abstract: This invention relates to a mobile crane with a vehicle framework and at least one support device positioned on the vehicle framework, whereby the at least one support device comprises a sliding beam box and at least one sliding beam supported therein in a telescopable manner, whereby the sliding beam box consists of a fixed partial sliding beam box and of a detachable partial sliding beam box, and whereby the fixed partial sliding beam box is firmly fixed to the mobile crane, particularly on the vehicle framework, and the detachable partial sliding beam box is detachably connected or connectable with the fixed partial sliding beam box.

Abstract: A boom section for the boom of a telescopic crane has a lower shell and an upper shell. The lower shell and the upper shell are welded to one another, and the weld seam extends between the lower shell and the upper shell angled in at least one region to at least one section edge of the boom section.

Abstract: This invention relates to a mobile crane with a vehicle framework and at least one support device positioned on the vehicle framework, whereby the at least one support device comprises a sliding beam box and at least one sliding beam supported therein in a telescopable manner, whereby the sliding beam box consists of a fixed partial sliding beam box and of a detachable partial sliding beam box, and whereby the fixed partial sliding beam box is firmly fixed to the mobile crane, particularly on the vehicle framework, and the detachable partial sliding beam box is detachably connected or connectable with the fixed partial sliding beam box.