Delft University of Technology
Faculty Mechanical, Maritime and Materials Engineering
Transport Technology

B.L. Oudman De balanskraan als containerkraan voor kleine binnenhavens.
Literature survey, Report 96.3.TT.4811, Transport Engineering and Logistics.

Against the background of increasing congestion of the roads, a shift in the hinterland transportation will occur from road to rail and inland barges. The number of containers to be transported by the latter two modalities is set to increase rapidly. For the development of the inland barge transportation it is important that the flexibility of this modality is increased through the enlargement and creation of many small inland harbours.

In order to guarantee their efficiency these small inland harbours will have to be equipped with container cranes which can handle the inland barges fast and accurate. De cranes currently in use at the inland harbours do not meet these criteria, making research into new container handling techniques necessary. Within the framework of the development of new container handling techniques for inland barge transportation, the use of a balance crane for the handling of containers has been researched for this report.

The research points out that, in its current geometry, the balance crane is not fit for the handling of containers. One of the demands made on a container balance crane is, as opposed to the current balance cranes, the balancing of the mass of the load in addition to the masses of the arms of the crane. Even if the current balancing system of the balance cranes is adjusted to counteract the weight of the average mass of the load, the displacement of the centre of gravity of the balance crane remains to large for the demands made.

By enhancing the balancing system of the current balance cranes, a small displacement of the centre of gravity can however be realised. For this report the 'slide crane' concept has been developed, that couples a movement of the counterweight, according to the weight of the load, to the current balancing system of the current balance cranes. Through the application of some control systems techniques, this new balancing system is able to realise, according to the demands made, a sufficiently small displacement of the centre of gravity.

This report also includes the calculation of the sizes and masses of the arms of the slide crane. These calculations can only be accurately made by an iterative calculation process, according to the demands on the size of the working area of the container balance crane. Furthermore three applications of the slide crane concept were researched, namely: stationary, rail- or track-mounted and barge mounted.

Reports on Transport Engineering and Logistics (in Dutch)
Modified: 2006.03.22; , TU Delft / 3mE / TT / LT.