Hydraulic Support

Hydraulic Support

 

a mining support in which the load-bearing elements (pillars or props), movement of the support, and the shifting of ceilings, protective coverings, and auxiliary units are performed by means of hydraulic devices.

References in periodicals archive ?
In addition, hydraulic support legs provide stability, and the on-site safety profile can be enhanced to tolerate a tilt of +/-30 degrees - with an optional rear stabiliser blade for uphill-facing operations and a 50m-long electric winch cable with 6.
Based on the geometric characteristic of arched-top trapezoid and the equipment condition in Zouzhuang coal mine, the "U-type steel support + advanced hydraulic support (model ZQL 2 x 4000/18/35) + timber crib" was chosen as advanced support technique, as shown in Figure 12(a).
Also, large hydraulic support legs level and stabilize the units to speed setup.
The topics include the strength and reliability analysis of hydraulic support, predicting wear life for a large diameter spool valve, simulating the ship production design process based on a hierarchical timed Petri net, a multi-objective oriented product design method for machine tools, and failure analysis on bearing of railway freight cars with radial bogle.
Inside, hydraulic support columns were installed in 2005 to keep some of the floors from sagging in this overcrowded, but academically successful, school.
A UK Coal spokesman said the accident happened as Mr Milner and three other men removed a hydraulic support shaft from an exhausted seam.
The robot Max, who stands on a stage that conceals power and hydraulic support equipment, employs a 36-axis real-time motion control system that consists of a master computer with two slaves, and seven high-speed DSP motion control sub processors.
Working closely on the unit's design with one of the company's long-time customers, GreyStone manufactures an automated log washer with a hydraulic support system tied to a PLC sensor that detects the tonnage going through the unit.
The section on machinery and engineering applications describes recent work in areas such as finite element analysis for hydraulic support, design of a shaft assignment radial piston pump, laser quenching paths of a numerical control algorithm, and physical simulation of virtual CNC turning.
Air 18 (1 Piece); Part 4 - Hydraulic Support For The Exchange Of Transmissions In Vehicles, Pcs.
These powerful machines have a nine meter wheelbase and come equipped with a lifting hook and foldable hydraulic support rolling wheels that enable the machine to cope with the extremes of a 100MT load.