Disclosed is a system or kit for forming an assembly comprising a rail trolley engageable with a rail to be moveable therealong, the system or kit comprising: at least one portion which a body of the trolley is to comprise (“body portion”), the body portion(s) being configured to define at least one slot in said body; and one or more wheels connectable or connected to at least one said body portion, or connectable to said body, the system or kit including at least one component connectable to the body through at least one said slot in the body and/or in one or more said body portions, or connected to at least one said body portion through at least one said slot therein, such that the position of a resulting interconnection between the/each component and the body in the assembly is variable along the slot(s) through which that component is connected.

An all-weather maintenance system for an offshore wind turbine maintenance program includes a maintenance capsule for transporting tools, parts and maintenance personnel to and from respective wind turbine towers, a maintenance vessel with a capsule support apparatus for transporting capsules supported on board by the capsule support apparatus to and from respective wind turbine towers, and a crane assembly with a trolley for transporting capsules between the respective wind turbine towers and the maintenance vessel.

An arrangement with an end carriage, a plate, and a wheel block which is detachably fastened to the end carriage and comprises a housing and a wheel that is mounted in the housing and projects out of the housing, wherein the plate is located between the end carriage and the wheel block and is fixedly connected to the end carriage and has a base surface directed towards the housing, and wherein the housing has a groove which receives the plate (and which has a bottom surface e directed towards the base surface and side walls delimiting the groove wherein the wheel block is aligned relative to the end carriage by means of an interlocking connection between the wheel block and the plate

An arrangement with an end carriage, a plate, and a wheel block which is detachably fastened to the end carriage and comprises a housing and a wheel that is mounted in the housing and projects out of the housing, wherein the plate is located between the end carriage and the wheel block and is fixedly connected to the end carriage and has a base surface directed towards the housing, and wherein the housing has a groove which receives the plate (and which has a bottom surface e directed towards the base surface and side walls delimiting the groove wherein the wheel block is aligned relative to the end carriage by means of an interlocking connection between the wheel block and the plate

The invention relates to a wheel system having a running wheel and a support body which at least partially surrounds the running wheel and in which the running wheel is mounted and from which the running wheel projects in order to come into contact with a rail. In order to allow predictive maintenance of the wheel system with a low inspection effort, it is proposed that a mechanical device for detecting and/or determining wear on the running wheel is mounted on the support body.

The invention relates to a wheel system having a running wheel and a support body which at least partially surrounds the running wheel and in which the running wheel is mounted and from which the running wheel projects in order to come into contact with a rail. In order to allow predictive maintenance of the wheel system with a low inspection effort, it is proposed that a mechanical device for detecting and/or determining wear on the running wheel is mounted on the support body.

A gantry carriage assembly includes a support plate having a first end and a second end. The gantry carriage assembly further includes first guide wheels secured to a first end of the support plate, the first guide wheels including a first pair of guide wheels configured to accommodate a longitudinal member of a gantry truss therebetween, where the first pair of guide wheels are disposed opposite from one another across the longitudinal member. The gantry carriage assembly also includes second guide wheels secured to a second end of the support plate opposite the first end, the second guide wheels including a second pair of guide wheels configured to accommodate the longitudinal member of the gantry truss therebetween, wherein the second pair of guide wheels are disposed opposite from one another across the longitudinal member.

A gantry carriage assembly includes a support plate having a first end and a second end. The gantry carriage assembly further includes first guide wheels secured to a first end of the support plate, the first guide wheels including a first pair of guide wheels configured to accommodate a longitudinal member of a gantry truss therebetween, where the first pair of guide wheels are disposed opposite from one another across the longitudinal member. The gantry carriage assembly also includes second guide wheels secured to a second end of the support plate opposite the first end, the second guide wheels including a second pair of guide wheels configured to accommodate the longitudinal member of the gantry truss therebetween, wherein the second pair of guide wheels are disposed opposite from one another across the longitudinal member.

A walking device with a self-adaptive track gauge and wheel pressure for preventing rail gnawing comprises a first rail, a second rail parallel to the first rail, a driving trolley disposed on the first rail, a driven trolley disposed on the second rail, two beams connected between the driving trolley and the driven trolley and each of which having a sliding groove, and an electric hoist disposed on the two beams. The driving trolley is hung on the first rail through a first bearing wheel, and the driven trolley is hung on the second rail through a second bearing wheel. The driving trolley is connected with a driving motor, and the driving trolley is configured to drive the driven trolley to synchronously move along length directions of the first rail and the second rail through the two beams, so that the electric hoist is driven to synchronously move.

A walking device with a self-adaptive track gauge and wheel pressure for preventing rail gnawing comprises a first rail, a second rail parallel to the first rail, a driving trolley disposed on the first rail, a driven trolley disposed on the second rail, two beams connected between the driving trolley and the driven trolley and each of which having a sliding groove, and an electric hoist disposed on the two beams. The driving trolley is hung on the first rail through a first bearing wheel, and the driven trolley is hung on the second rail through a second bearing wheel. The driving trolley is connected with a driving motor, and the driving trolley is configured to drive the driven trolley to synchronously move along length directions of the first rail and the second rail through the two beams, so that the electric hoist is driven to synchronously move.