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MUD_PUMP_PARTMUD PUMP POWER END COMPONENTS   
 
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Qingdao Hongbo manufactures and supplies mud pump power end components from frame to small sealing parts of triplex and duplex mud pumps with API-7K 0206.

. Power End (frame, pinion shaft, crankshaft, crosshead and extension rod)
1. Power end features:
.Continuous tooth herringbone gear.
.One-piece alloy steel crank.
.Renewable crosshead guide.
.The frame is made of welded steel plate to provide the frame with high strength, good rigidity and light weight. The extension rod packing is duplex seal structure to provide the good seal result. The power end uses the combined lubricating system of forced lubrication and splash lubrication.
2. The frame:

 The frame is made of welded steel plate and stress relief treated to obtain the good rigidity and high strength. The place where the crankshaft bearing is fitted is strengthened by using ribbed plates. The frame is furnished with the necessary oil basin and oil way system for cooling and lubricating purpose.
3. Crankshaft
The crankshaft is made of cast alloy steel and furnished with herringbone gear, connecting rod and bearing. The tooth form of the big geared ring is herringbone gear. The gear bore and the crankshaft surface are interference fitted and they are both fastened with bolts and lock nuts. The big end of the connecting rod is mounted on three eccentric straps of the crankshaft through single row short cylindrical roller bearings and the small end on the crosshead pin through double row long cylindrical roller bearing. Double row radial spherical roller bearings are mounted at both ends of the crankshaft.
4. Pinion shaft
The pinion shaft is made of forged alloy steel, on which a herringbone gear with the medium-hard tooth surface is machined. For easy maintenance, the single row radial long cylindrical roller bearing with inner ring (without sides) is used. The both ends of the pinion shaft are extended out so that the sheave or the sprocket can be mounted on either end.

5. Crosshead and Extension Rod
The crosshead and crosshead guide are made of ASTM A48-83 meehanite cast iron featured by good abrasion resistance and long service life. The connection between the crosshead and the extension rod is made by using bolted flange. The rigid connection ensures the concentricity of the crosshead and the extension rod. The coupling is used for connecting the extension rod to the piston rod. The light-weight coupling enables the extension rod and the piston rod to connect to each other easily and reliably.

II .Spraying System
The spraying system consists mainly of spray pump, cooling water box and spray pipe. the function is to cool and rinse liners and pistons to promote their service life.
The centrifugal spray pump can be driven by a sheave mounted on the input shaft extension end or a separate motor and cooled and lubricated by water.
The spray pipe is mounted on the coupling between the extension rod and the piston rod and can reciprocate with the piston. Nozzle is near the piston end so that the lubricating-cooling fluid can rinse the contact surface between the piston and liner all the time. The durable fixed spray pipe may be used, too.
III .Lubricating System
The power end uses the combined lubricating system of forced lubrication and splash lubrication. The pressure oil is conveyed through lubricating pipeline, crosshead, extension rod, crosshead guide and all bearings by a gear oil pump within the oil box to realize the forced lubrication. The working condition of the gear oil pump may be understood from the pressure gauge behind the frame.

.Charging System
To prevent the air lock occurring for low pump inlet pressure, every mud pump is furnished with a complete charging system. It consists of charging pump, pump base, butterfly valve and corresponding manifold. Mounted on the suction manifold of the mud pump, the charging pump is driven by the special purpose motor or the input shaft of the mud pump through V-belts to reduce the power consumption.

 

 

PLEASE CLICK HERE TO REVIEW MORE DETAILS OF POWER END COMPONENTS WITH FRAME, CRANKSHAFT, PINION SHAFT, CROSSHEAD WITH PARTS, SPRAYING SYSTEM, LUBRICATING SYSTEM, CHARGING SYSTEM AND CONTACT US AS FREE.

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Address:No. 8 Tengfei Road, Tengfei Industry Zone, Duanpolan Town
Qingdao Jimo City, Shandong Province, China 266225
Tel: 86-532-83561799 Fax: 86-532-83561899