In early 2014, beiben trucks targeting specific markets and short distance transportation of refined oil in tight, in-depth study, short-distance transportation of refined oil market demands, through a multidisciplinary, determined to develop a light-weight and highly reliable four common rail tankers. North country, four common rail tanker early in the development, set up a North country, four common-rail vehicle development project team, project development and implementation plan was issued establishes chassis weighs 9.4 tons, maximum speed the speed is less than 80 km/h, such as product quality and cost objectives. In product development, engineering design, product prototyping, testing and improvement, user tracking and other aspects of the detailed planning and implementation. Four common rail tanker by redevelopment cab rear support, reduce cab tilting angle after successfully conquering the lightweight 80 cab support, such as design, front design solves through the exhaust pipe exhaust system design for technical difficulties.
By traction tonnage is divided into: 2 ton, 3 ton, 5 ton, 8 ton, 10 ton, 15-ton, 25-ton, 30-ton, 50-ton, 80 tons. Divided by brand: Jac wrecker, wrecker Isuzu, Dongfeng wrecker, Hongyan heavy-duty wrecker, Steyr heavy-duty wrecker, jiangling road-block removal truck, Iveco wrecker.
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Drilling rigs have eight system (lifting system, rotating system, drilling fluid circulation system, drive system, control system and monitoring display apparatus, drive system, drilling
rig, drilling rig auxiliary equipment of the base system), ability to tripping, Rotary drilling capacity, flushing capability. Its main equipment: derricks, cranes, winches, the traveling block, big hooks, dials, tap (power swivel) and pump (traditionally called drill eight big), engines (diesel engines, electric motors, gas turbines), linkage, solids control equipment, well control equipment.
Which bit is the direct rock tool, drag bits, rotary drill bit, diamond bit types. Wall thickness and weight of the drill collars are large, used to put on the drill bit drill press, drill pipe linking bottomhole equipment and ground equipment, and transmission torque. Kelly sections are generally square, Kelly led the entire drill string and bit through the turntable rotated, taps is typical of Rotary drilling rig components, it must bear the weight of drilling and rotating movements, while also providing high pressure mud channel.
Drilling mud pump will suck from mud tank in the inhalation, by drilling pump pressurized of mud, after high-pressure tube meeting, and State tube, and hose with, entered taps, through hollow of drill to bottom, from bit of dressed spray out, by Wells eye and drill into circular space carrying rock chip returns ground, from bottom returns of mud by levels mud purification equipment, removed solid content, then repeated using.
Derrick and substructure for support and installation of various drilling equipment and tools, providing drilling operation sites. Used to install cranes, suspension travel, hook, tap and drill, withstand the drilling work load, discharged state; base used to install power unit, drawworks, rotary table, supporting mast, using turntables hung drill, provided rotary table height between the ground and space to install the requisite blowout preventers and mud circulation.