Vehicle crane system having an attachment part transporting unit for a bracing device, in particular a lateral superlift, of a vehicle crane

A method for transferring an attachment part in the form of a bracing device from a transport apparatus of an attachment part-transport unit of a vehicle crane system (1) onto a telescoping jib of a vehicle crane of the vehicle crane system, wherein the transport apparatus further comprises a tilting device and two length-adjustable loading arms, wherein the loading arms are arranged so as to be movable on the transport apparatus and have free load-bearing ends that are able to be coupled to the attachment part, and wherein the tilting device is configured to raise the attachment part from the transport apparatus;

• said method comprising:
• providing the attachment part-transport unit having the received bracing device in the region of the vehicle crane;
• arranging the transport apparatus and telescoping jib relative to each other such that a longitudinal direction of the bracing device is oriented with respect to a longitudinal direction of the telescoping jib;
• coupling a tilting drive of the tilting device arranged on a loading surface of the transport apparatus to a first end section of the bracing device;
• actuating the tilting drive so as to shorten the tilting drive such that the bracing device supported at least in regions on a support assembly of the tilting device is tilted about the support assembly until a second end section of the bracing device opposite the first end section is raised with respect to the loading surface of the transport apparatus;
• bringing the vehicle crane closer to the transport apparatus such that the telescoping jib is arranged at least in sections beneath the second end section of the bracing device;
• actuating the tilting drive so as to lengthen the tilting drive such that the bracing device is tilted back about the support assembly and the second end section thereof is lowered in the direction of a head section of the telescoping jib until the bracing device is supported on at least one support roller arranged on the telescoping jib;
• actuating the tilting drive so as to further lengthen the tilting drive via a first setting-up movement such that the bracing device is lifted out of the support assembly and the bracing device is placed at least in sections on the telescoping jib, wherein the first setting-up movement occurs in a sliding and/or rolling manner about the support roller of the telescoping jib and is a combined translational and limited rotational movement;
• orienting the two length-adjustable loading arms arranged on the transport apparatus by actuating at least one pivot drive pivoting the loading arms and the length adjustability thereof until the free load-bearing ends thereof are coupled in each case to a coupling point of the bracing device, wherein the coupling point is located in the region of the first end section;
• decoupling the tilting drive of the tilting device from the bracing device;
• pivoting and/or lengthening the two loading arms until the bracing device supported via its second end section on the telescoping jib in a sliding and/or rolling manner is raised from the support roller of the telescoping jib;
• actuating, at the same time or following the pivoting and/or lengthening of the two loading arms, a joint drive arranged between an upper arm section and a lower arm section of each loading arm, where the upper arm section and lower arm section are connected together in an articulated manner, such that the upper arm section is folded down against the lower arm section of the respective loading arm;
• actuating, in a parallel or mutually separate manner, the pivot drive and the joint drive and a length-adjustability of the loading arms such that a second setting-up movement comprising a combined translational and limited rotational movement is performed until the bracing device is placed completely on the telescoping jib;
• actuating a luffing cylinder of the vehicle crane such that the telescoping jib is raised from the transport apparatus until the coupling points of the bracing device are decoupled from the free load-bearing ends of the two loading arms;
• and
• actuating, in a parallel or mutually separate manner, the pivot drive and the joint drive until the two loading arms are pivoted back in the direction of the loading surface of the transport apparatus.

A method for transferring an attachment part in the form of a bracing device from a basic box of a telescoping jib of a vehicle crane onto a transport apparatus of an attachment part-transport unit of a vehicle crane system, wherein the transport apparatus further comprises a tilting device and two length-adjustable loading arms, wherein the loading arms are arranged so as to be movable on the transport apparatus and have free load-bearing ends that are able to be coupled to the attachment part, and wherein the tilting device is configured to lower the attachment part from the transport apparatus;

• said method comprising:
• providing the attachment part-transport unit in the region of the vehicle crane comprising the telescoping jib with the bracing device located thereon;
• actuating, as required, a luffing cylinder of the vehicle crane such that the telescoping jib is raised;
• arranging the transport apparatus below the telescoping jib and orienting a longitudinal direction of the transport apparatus with respect to a longitudinal direction of the telescoping jib of the vehicle crane and/or a longitudinal direction of the bracing device;
• orienting the two length-adjustable loading arms arranged on the transport apparatus by actuating at least one pivot drive pivoting the loading arms and a joint drive arranged between two arm sections of each loading arm, where the two arm sections of each loading arm are connected to each other in an articulated manner, and the length adjustability thereof in such a manner until the free load-bearing ends thereof are arranged in each case below a coupling point of the bracing device, wherein the coupling point is located in the region of a first end section of the bracing device;
• actuating the luffing cylinder of the vehicle crane such that the telescoping jib is lowered towards a loading surface of the transport apparatus until coupling points arranged on the bracing device are coupled to the free load-bearing ends of the loading arms;
• actuating the pivot drive and, in a parallel or mutually separate manner, actuating the joint drive to lengthen the loading arms such that a first setting-down movement is performed that comprises a combined translational and limited rotational movement while the bracing device is supported on the telescopic jib in a sliding and/or rolling manner via a second end section of the bracing device until the first end section of the bracing device that is opposite from the second end and is facing the transport apparatus is raised from the telescoping jib;
• actuating the pivot drive and/or, in a parallel or mutually separate manner, shortening the two loading arms in such a manner until the bracing device that is supported on the telescoping jib in a sliding and/or rolling manner via its second end section is placed with its first end section at least in part protruding over a head section of the telescoping jib on the telescoping jib (3);
• actuating the pivot drive and/or, in a parallel or mutually separate manner, shortening the two loading arms such that their free load-bearing ends are decoupled from the coupling points of the bracing device and are lowered in the direction of the loading surface of the transport apparatus;
• coupling a tilting drive of the tilting device arranged on the loading surface of the transport apparatus to the first end section of the bracing device;
• actuating the tilting drive so as to shorten the tilting drive such that the bracing device is tilted via a second setting-down movement that is a combined translational and limited rotational movement and is effected about at least one support roller arranged on the telescoping jib until the second end section of the bracing device is raised from the telescoping jib and the first end section of the bracing device that is supported on the support roller in a sliding and/or rolling manner is supported at least in regions on a support assembly of the tilting device;
• actuating the tilting drive so as to further shorten the tilting drive such that the bracing device is tilted about the support assembly until the bracing device is completely raised from the telescoping jib;
• moving the vehicle crane away from the attachment part-transport unit until the telescoping jib is moved out of a region located between the tilted bracing device and the loading surface of the transport apparatus;
• actuating the tilting drive such that the bracing device is tilted back about the support assembly and is lowered in the direction of the loading surface of the transport apparatus until the second end section of the bracing device is supported at least in part on the loading surface of the transport apparatus;
• and
• decoupling the tilting drive of the tilting device from the bracing device.