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Drawworks

Drawworks
  

    Description

    Surestrong Machinery Co.,Ltd is one of the leading China drawworks manufacturers and suppliers, welcome to check drawworks price and design with us, and also we are always able to offer you rig drawworks, oil rig drawworks, drawworks drilling, drawworks components for sale.

    Design Features of DC drawworks:

    l  All bearings are roller bearings. Shafts of drawworks are made of alloy steel.

    2  Drum of drawworks is grooved. Ventilating air clutches constitute the high and low speed ends.

    3  Main brake of drawworks is hydraulic disc brake. The disc of brake is cooled by water or air.

    4  Auxiliary brake is Electromagnetic eddy current brake, cooled by water or air.

    5  Being shifted though air clutch.

    6  Being transmitted through chains.

    7  Chains are lubricated forcedly by thin oil, bearings are lubricated by grease.

    8  Split construction.

    Specifications of DC Drawworks:

    Specifications

    Chains with high accuracy and high strength are pressure lubricated.

    Design Features of Mechanical Driven Drawworks:

    1, Bearings are rolling ones and shafts are made of alloy steel.

    2, Chains with high accuracy and high strength are pressure lubricated.

    3, On the drum there is a spiral groove. The low-speed & high-speed ends of drum shaft are equipped with a ventilating air tube clutch. The brake rim (or disc) is water cooled and the surface is intermediate frequency quenched, which provides long service life.

    4, The contours of the sprocket teeth are intermediate frequency quenched. All clutches of shifting gears are of involute spline type.

    5, The main brake can be either a band or disc brake system. The auxiliary brake can be realized by an eddy current brake (water or air cooled)

    Basic Specifications of Mechanical Driven Drawworks:


    Design Features of DC Motor Driven Drawworks:

    1, Bearings are roller ones and shafts are made of alloy steel.

    2, On the drum there is a spiral groove. The low-speed & high-speed ends of drum shaft are equipped with a ventilating air tube clutch.

    3, The main brake is of hydraulic disc type. The disc brake is water or air cooled.

    4, The eddy current brake and air & water cooled brake is considered as an auxiliary brake.

    5,Air shift gear structure.

    6,Chain drive structure.

    Basic Specifications of DC Motor Driven Drawworks:

    Design Features of AC Variable Frequency Motor Driven Drawworks:

    1, Bearings are roller ones and shafts are made of alloy steel.

    2, On the drum there is a spiral groove.

    3, Auto feed driller.

    4, The main brake is of hydraulic disc type. The disc brake is water or air cooled.

    5, The auxiliary brake is of motor dynamic braking.

    6, Single shaft drawworks.

    7, Transmission is made by two-stage gear reducer and shifting-gear is manual done.

    8, The gear is pressure lubricated.

    Specifications of VFD Single Shaft Drawworks:



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