A vertically-adjustable gantry assembly installation adapted for removal or placement of a train bridge-span of the type which spans and is supported by two piers, comprises a gantry assembly positioned on load-bearing first ground-support locations, the gantry assembly comprising a gantry and a ground-engaging vertical support and lift system, the vertical support and lift system adapted for supporting a combined weight of the gantry and a bridge span in at least one operational vertical position above respective bridge span support-surfaces of the piers including a position corresponding to a disembarking plane in which the leg portions are extended from a stowed position to an extent at least sufficient for the gantry assembly to self-liftoff the pre-installation conveyance system onto the first ground-support locations to effect the gantry assembly installation.

A robotic service device is described for use on a robotic picking system grid. The robotic service device is capable of driving to any location on the grid order to perform maintenance operations or cleaning. Additionally, the service device may be used to rescue robotic load handling devices operational in the picking system. The robotic service device may include a releasable docking mechanism to enable it to dock and latch on to malfunctioning load handling devices. The service device may also be provided with cleaning capability and a camera to enable the condition of the grid and other robotic devices to be monitored.

A robotic service device is described for use on a robotic picking system grid. The robotic service device is capable of driving to any location on the grid order to perform maintenance operations or cleaning. Additionally, the service device may be used to rescue robotic load handling devices operational in the picking system. The robotic service device may include a releasable docking mechanism to enable it to dock and latch on to malfunctioning load handling devices. The service device may also be provided with cleaning capability and a camera to enable the condition of the grid and other robotic devices to be monitored.

The invention discloses a mining crane which is easy to install, and includes a base which is symmetrical in front and back. A support column is fixed on the upper end surface of the base, and a fixed block is fixed on the upper end of the support column. The fixed block, the support column and A traveling device is arranged between the bases, and the traveling device includes four rotatable traveling wheels. When the traveling wheels rotate, the fixed block is moved, and a lifting device is provided in the fixed block. The heavy device includes a rewindable hook for lifting the heavy ore. The traveling device can drive the whole to adjust the installation position through the traveling device. The device has two installation and support methods that can directly abut the mine wall and drill into the mine wall. According to the actual situation of the mine and mining area, it can be reasonably selected to expand its scope of application, without being restricted by the region. Secondly, the support rod and telescopic rod can be contracted and rotated to reduce the overall volume of the present invention, which is convenient for movement and handling, and convenient for loading and unloading.

The invention discloses a mining crane which is easy to install, and includes a base which is symmetrical in front and back. A support column is fixed on the upper end surface of the base, and a fixed block is fixed on the upper end of the support column. The fixed block, the support column and A traveling device is arranged between the bases, and the traveling device includes four rotatable traveling wheels. When the traveling wheels rotate, the fixed block is moved, and a lifting device is provided in the fixed block. The heavy device includes a rewindable hook for lifting the heavy ore. The traveling device can drive the whole to adjust the installation position through the traveling device. The device has two installation and support methods that can directly abut the mine wall and drill into the mine wall. According to the actual situation of the mine and mining area, it can be reasonably selected to expand its scope of application, without being restricted by the region. Secondly, the support rod and telescopic rod can be contracted and rotated to reduce the overall volume of the present invention, which is convenient for movement and handling, and convenient for loading and unloading.

Systems and methods for a mobile crane are provided. In particular, systems and methods are provided for a mobile crane that is designed to enable easy transportation on a railcar to and from a job site. The mobile crane facilitates quick changing between a transport configuration and a work configuration to enable increased productivity. The mobile crane is configured to be modular and thereby be configured to include various lifting and object manipulating features, as required by a specific application.

Systems and methods for a mobile crane are provided. In particular, systems and methods are provided for a mobile crane that is designed to enable easy transportation on a railcar to and from a job site. The mobile crane facilitates quick changing between a transport configuration and a work configuration to enable increased productivity. The mobile crane is configured to be modular and thereby be configured to include various lifting and object manipulating features, as required by a specific application.

A robotic service device is described for use on a robotic picking system grid. The robotic service device is capable of driving to any location on the grid order to perform maintenance operations or cleaning. Additionally, the service device may be used to rescue robotic load handling devices operational in the picking system. The robotic service device may include a releasable docking mechanism to enable it to dock and latch on to malfunctioning load handling devices. The service device may also be provided with cleaning capability and a camera to enable the condition of the grid and other robotic devices to be monitored.

A robotic service device is described for use on a robotic picking system grid. The robotic service device is capable of driving to any location on the grid order to perform maintenance operations or cleaning. Additionally, the service device may be used to rescue robotic load handling devices operational in the picking system. The robotic service device may include a releasable docking mechanism to enable it to dock and latch on to malfunctioning load handling devices. The service device may also be provided with cleaning capability and a camera to enable the condition of the grid and other robotic devices to be monitored.

A vertically-adjustable gantry assembly installation adapted for removal or placement of a train bridge-span of the type which spans and is supported by two piers, comprises a gantry assembly positioned on load-bearing first ground-support locations, the gantry assembly comprising a gantry and a ground-engaging vertical support and lift system, the vertical support and lift system adapted for supporting a combined weight of the gantry and a bridge span in at least one operational vertical position above respective bridge span support-surfaces of the piers including a position corresponding to a disembarking plane in which the leg portions are extended from a stowed position to an extent at least sufficient for the gantry assembly to self-liftoff the pre-installation conveyance system onto the first ground-support locations to effect the gantry assembly installation.