A multi-head mobile unloading crane tube

Abstract

The invention discloses a multihead moving type unloading crane tube and belongs to the technical field of crane tubes. The multihead moving type unloading crane tube comprises hydraulic cylinders, a first pneumatic motor, a second pneumatic motor, a first moving cart, a second moving cart and oil discharge devices; the first moving cart comprises a first wheel and the first pneumatic motor, and the first wheel is arranged on a first rail arranged on the second moving cart; the second moving cart comprises a second wheel and the second pneumatic motor, and the second wheel is arranged on a second rail arranged on a truss; 1-5 identical oil discharge devices which are mutually independent are vertically fixed in the middle of the first moving cart, and each oil discharge device comprises a submersible pump system, the hydraulic cylinder, a telescopic vertical tube, a liquid-phase tube and an oil suction. By the arrangement, loading and unloading operations of multiple kinds of medium can be met on one loading and unloading station, and the medium crane tubes are mutually independent, so that medium are ensured not to be polluted, and cost is greatly lowered; oil is discharged by positive pressure, and air resistance and erosion of the crane tube never occur, so that oil discharging speed can be greatly increased, and efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of crane tubes, and more specifically relates to a multi-head mobile unloading crane tube. Background technique [0002] At present, there are many types of crane pipes for unloading vehicles, but because most of the crane pipes for unloading oil are prone to air resistance and cavitation when unloading tanks in high temperature and low pressure areas, oil depots around the world have to add submerged pipes to the oil unloading system. oil pump. And in the prior art, the general crane tubes are all installed at a single head. If loading and unloading several different media, there must be several crane tubes for loading and unloading, which takes up space and the electro-hydraulic control system cannot be fully utilized. The translation, lifting and rotation of the crane tube use five rotary joints to meet the movement of the three coordinates of the telescopic tube. This result has many dynamic sealing poi...

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Problems solved by technology

[0002] At present, there are many types of crane pipes for unloading vehicles, but because most of the crane pipes for unloading oil are prone to air resistance and cavitation when unloading tanks in high temperature and low pressure areas, oil depots around the world have to add submerged pipes to the oil unloading system. oil pump

Moreover, in the prior art, the crane tubes are generally installed at a single head. If loading and unloading several different media, there must be several crane tubes for loading and unloading, which takes up space and the electro-hydraulic control system cannot be fully utilized.

The translation, lifting and rotation of the crane tube use five rotary joints to meet the movement of the three coordinates of the telescopic tube. This result has many dynamic sealing points, which is easy to cause leakage points

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