450天车使用说明书(英语)
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SERVICE MANUAL TC450-16 CROWN BLOCK
YZ101.55.00SM
Shandong Yuanzheng Petroleum Equipment Co., Ltd
CONTENTS
1 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 PLACING
IN 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 Y
FIGURE 3 AUXILIARY SHEA VE
FIGURE 4 GIN POLE ASSEMBL Y
FIGURE 5 ROLLERS
1 MODEL AND DESCRIPTION
TC450-16 crown block
2 APPLICATION AND SCOPE OF USE
2.1 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 PARAMETERS
Max. hook load 4500kN
Number of sheaves 7
O.D of sheaves φ1524mm
O.D of guide sheaves φ1524mm
Diameter of wire rope φ38mm
O.D of sand line pulley and Dia. of line φ610/14.5mm
Overall dimension (L×W×H) 3300×2902×3760mm
Matching mast JJ450/45-K9 mast
Theoretical weight 10340kg
4 STRUCTURE AND PRINCIPLE OF OPERATION
TC 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.