دانلود رایگان هندبوک طراحی، نگهداری و تعمیرات جرثقیل ( ویرایش دوم )
هندبوک طراحی، نگهداری و تعمیرات جرثقیل با فرمت PDF
نویسنده: J. Verschoof
تعداد صفحات: 349 صفحه
زبان: انگلیسی
سرفصل های این کتاب:
Chapter 1
Introduction
History
Power
Some types of cranes and lifting equipment
Capacities, number of cycles, cycle-time
Container quay cranes
Grab unloaders
The influence of wind and storms
Hatchless container vessels
Chapter 2
Wire ropes
Wire rope reeving systems
Influencing the lifetime of wire ropes
Drum diameters and wire rope sheave diameters
The choice of wire ropes
Fleet angles; grooves on drums and in wire rope
sheaves
The bending angle over sheaves; the ultimate tensile
limit
The lifetime of wire ropes
Wire rope strength
Chapter 3
Drives; calculating motor powers
Driving systems
The squirrel cage motor with fluid coupling
The slipring motor
The WardLeonard drive
Direct current full-thyristor systems
Alternating current drives with frequency control
Hydraulic drives
Numbers of wire rope sheaves in the hoisting
mechanisms of different reeving systems
Calculating the requisite power of the hoisting
motors
viii Cranes Design, Practice, and Maintenance
Calculating the needed power of the trolley
travelling motors
Direct driven trolleys or motor trolleys;
wheel slip control
Trolleys pulled by wire ropes or rope driven
trolleys
Rope driven trolleys for grab unloaders with
a main and auxiliary trolley
Hoisting the boom; calculating the power needed for
the boom hoist motor
Calculating the needed power of the crane-travelling
motorsWheelslip control how to calculate the
forces through skewing of the crane and trolley
The rating of the motors
The root-mean-square calculation
The current supply of a crane by a diesel generator
set: calculating methods and warnings
Calculating the power needed for the slewing motors
of level luffing cranes
Calculating the power needed for the luffing motor
of level luffing cranes
Chapter 4
Brakes
Modern brakes
Hoisting brakes; lowering the load; emergency stop
Hoisting brakes; lowering the load; braking by full
motor torque
Hoisting brakes; hoisting the load; braking by full
motor torque
Hoisting brakes; hoisting the load; emergency stop
Svendborg brakes
Calculating the brake time and braking distance of a
crane
The acceleration of a crane by wind at the beginning
of an emergency stop
Storm pins and storm brakes
Chapter 5
Standards
CEN
FEM
ISO
DIN; BS; JIS
Contents ix
Chapter 6
Sagging and slapping of the wire ropes; rock and roll
of the spreader; machinery trolleys versus wire rope
trolleys; twin-lift; positioning; automatic equipment
identification (AEI)
Sagging and slapping of the wire ropes; other hoist
wire rope systems for container quay cranes and
grab unloaders
The rock and roll of the spreader
Advantages and disadvantages of machinery trolleys
versus wire rope driven trolleys
Container transport with twin-lift spreaders; long
twin-lift; Bramma TandemliftConnecting the
spreader to the headblock
Sway and swing; automation of the trolley travelling
mechanism
The positioning of a hoisting mechanism;
automation
Automatic positioning for crane travelling
mechanisms
Encoder systems
Sensor systems
Hall magnets with electronic measuring rulers
Detectors with linear absolute encoders
Antennatransponder systems
Radar systems
Laser systems
The influence of wind and eccentric loading of the
container
The prevention of skew
The automatic identification of containers
Tags
Electronic Data Interchange (EDI)
General
GPS and DGPS
Automatic vehicle and container location
Scanning
Container inspection by X-ray
Seal recognition
CSC plate control
Checking the damage to containers
GE Toshiba Automation Systems; crane automation
x Cranes Design, Practice, and Maintenance
The Stewart Platform Reeving
Checking the alignment of containers etcwith Laser
Scanners
Spreader Positioning System
Camera-Monitor Systems
Chapter 7
Construction and calculation methods on strength and
fatigue
Materials
For steel constructions
For mechanisms
Welding
Bolts
Construction of box and lattice girders etc
Boom-ties; diagonals
Calculations on strength and on fatigue
The fatigue load
Fatigue in structures
Fatigue in mechanism components as shafts etc
Pressure between shafts and steel constructions
Design details
The natural frequency
Chapter 8
Wheels and tracks
Calculating the wheel diameters of fast-running
trolleys (ûHmmin)
Calculating the wheel diameter of a crane travelling
wheel for normal speeds (ûGup to mmin)
Differences in wheel loads, due to breaking forces
Rails and rail constructions
Trolley travelling rails and boom hinge points
Wear and tear of a crane rail
Buffers
Chapter 9
Miscellaneous
Overload preventers
Snag loads
Anti-collision systems
Cable reels
Festoon systems: current and data supply to the
trolleys
Inductive power transfer and data transmission
Contents xi
Hoppers
Apron feeders; conveyors
Electronic Tracking Guide System
Gears
The Promo-Teus Conveyor Belt System
Chapter 10
Maintenance
Artwork sources
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