450天车使用说明书(英语)

SERVICE MANUAL TC450-16 CROWN BLOCKYZ101.55.00SMShandong Yuanzheng Petroleum Equipment Co., LtdCONTENTS1 MODEL AND DESCRIPTION (1)2 APPLICATION AND SCOPE OF USE (1)3 TECHNICAL SPECIFICATIONS AND PARAMETERS (1)4 STRUCTURE AND PRINCIPLE OF OPERA TION (1)5 TRANSPORTATION, INSTALLATION, AND PLACINGIN OPERATION ... ... ...... ... ... ... ... ... ... ... ... ... ... ... ... ... (2)6 MAINTENANCE, OVERHAUL & TROUBLE ELIMINA TION (2)7 FIGURES ATTACHED (3)FIGURE 1 GENERAL VIEW OF TC450-16 CROWN BLOCK FIGURE 2 SAND LINE PULLEY ASSEMBL YFIGURE 3 AUXILIARY SHEA VEFIGURE 4 GIN POLE ASSEMBL YFIGURE 5 ROLLERS1 MODEL AND DESCRIPTIONTC450-16 crown block2 APPLICATION AND SCOPE OF USE2.1 Application: The crown block is the stationary piece of the hoisting system of drilling rigs. It is used for making a trip, setting casings, and handling accidents along with the drawworks and the traveling piece of the hoisting system.2.2 Scope of use: The crown block shall be used along with JJ450/45-K9 mast.3 TECHNICAL SPECIFICATIONS AND PARAMETERSMax. hook load 4500kNNumber of sheaves 7O.D of sheaves φ1524mmO.D of guide sheaves φ1524mmDiameter of wire rope φ38mmO.D of sand line pulley and Dia. of line φ610/14.5mmOverall dimension (L×W×H) 3300×2902×3760mmMatching mast JJ450/45-K9 mastTheoretical weight 10340kg4 STRUCTURE AND PRINCIPLE OF OPERATIONTC 450-16 crown block is composed of the frame, bearing seat, double-row onical-roller bearings, sheaves, auxiliary sheave, gin pole and guardrail.4.1 The frame is made of welded structure. The two longitudinal beams and cross beams are welded of 16Mn plates. The major welds are subjected to magnetic particle examination.4.2The traveling system uses parallel line reeving. The center line of shaft of main cluster makes an angle of 4.3° with the vertical center line of crown frame so that the traveling block is in parallel with the front of mast. The wire rope runs from drawworks through a guide sheave and is led directly to the crown block.4.3 On the top of sheaves is there a rope guard to prevent the wire rope from out of the sheave grooves.4.4The sheave grooves are designed to API Spec 8A. The maximum numbers of line for hoisting system is 6×7 and the diameter of wire rope is φ38mm.4.5A 37961K double-row conical-roller bearing is mounted between each main sheave and guide sheave. It can ensure that the sheaves run freely & smoothly and withstand the axial stress. Each bearing has its lubrication channel to ensure that the bearing is adequately lubricated and the sheaves run freely.4.6 Connect the crown block to the mast by twoφ40 pins and then fasten it on the mast with 12 M30 bolts.4.7 Under the crown block are there two auxiliary sheaves, which are used for suspending the rope of the air hoist4.8 On the crown block the gin pole is mounted, which is available for replacing or repairing the sheaves and bearings.5 TRANSPORTAION, INSTALLATION & PLACING IN OPERATIN5.1 TransportationRemove the rubber anti-collision located under the crown block, tie it to the crown platform by means of wires and tie the auxiliary sheaves to the frame. They are shipped together with the crown block. The gin pole has to be dismantled and shipped separately. Put the following fasteners into a wood box: the pins & cotter pins used for connecting the gin pole and the crown block; the bolts, nuts & washers used for connecting the top support and the frame;the pins used for connecting the frame and the bracing; and two U bolts used for fastening the rubber anti-collision. The wood box is tied to the frame by wires. In addition, the top support, frame, and bracing are bundled up and shipped along with the crown block.5.2 InstallationAfter the crown block has been positioned on the mast by twoφ40 pins, it shall be fastened to the latter with 12 M30 bolts. The gin pole is assembled at the ground as shown in Figure and connected to the crown block with the pins. Mount the wood located under the crown block and fix it securely.5.3 Placing in operationThe crown block uses parallel line reeving.6 MAINTENANCE, OVERHAUL AND TROUBLE ELIMINATION6.1 Prior to installation & operation and during operation, the following shall be inspected:6.1.1 Check rotation of sheaves for abnormal phenomena.6.1.2 Check nuts for looseness, tighten them if necessary.6.1.3 Check connection of guardrails for reliability, welds on the pedestals for cracks，repair them if necessary.6.1.4 The rope guards are in good condition and out of contact with the sheaves. The sheaves run freely.6.1.5 Prior to use, fill bearings of the sheaves with grease. During operation, bearings should be lubricated at regular intervals and make sure the lubrication are unblocked.6.1.6 The bearings run normally.6.1.7 The temperature of the bearings shall not be more than 50℃.6.2 Wears and repairs of the sheave groovesIn consideration of the great effect of size and contour of the sheave grooves on the service lifeof the wire rope, the sheave grooves should be calibrated regularly by the gauge. The gauge shall conform to the following:Nominal diameter of wire rope (d) 38mmRadius of gauge (R G) (mm) 19.27-0.038mmThe repaired sheave grooves shall conform to the followingNominal diameter of wire rope (d) 38mmRadius of bottom of groove (mm) 20.4-0.038mm6.3 MaintenanceOil sites:Six grease fittings at the ends of crown shaft; one at one end of guide sheave; one at the end of auxiliary sheave; five on the roller of gin pole; and one at one end of sand line pulley. Frequency of lubrication and grease:Lubrication is made once a week with #2 lithium-base grease (SY1412-75).Caution: For max. load, the crown block shall be used above -18℃. When the crown block is to be used below -18℃, the cryogenic properties of material thereof shall be confirmed. And prior to use, necessary preventive action shall be taken.7.FIGURES ATTACHEDFigure 1. TC450-16 Crown BlockFigure 2. Sand Line Pulley AssemblyFigure 3. Auxiliary SheaveFigure 4. Gin Pole AssemblyFigure 5. Roller。