Puyuan. QUY 50 Crawler Crane Technical Manual

Transcription

1 Puyuan QUY 50 Crawler Crane Technical Manual Pictures and technical parameters in sample books may not accord with the delivery goods because of the improvement in design. Please understand and make allowance for our problems without notice.

2 Outline dimension and main parameters 1 Outline Dimensions and Weight of Complete Vehicle with Basic Boom 2 Main Performance Parameters 3 Outline Dimensions and Weight of Main Transport Components Basic machine Counterweight Technical Instruction 1 Boom and Pendant Plate 2 Mechanisms 3 Systems 4 Safety Equipment 5 Operator s Cab 6 Hook Self-assembly Dismantling Function 07 Lifting Performance 1 Main Boom Lifting Performance 2 Main Boom + Fixed Fly Jib Lifting Performance 09 11

3 1 Outline Dimensions of Complete Vehicle 2 Main Performance Parameters Outline dimensions and weight Max. lifting load working radius Deadweight when use basic boom Main boom Fixed fly jib Max. lifting load of fixed fly jib t m t m m t ~52 6~15 5 Outline dimensions and weight Offset angle of fixed fly jib 10,30 Main boom fixed fly jib m Speed of drum single layer rope Main winch Auxiliary winch Luffing gear m/min m/min m/min The 4th layer of a drum The 4th layer of a drum The 4th layer of a drum Slewing speed rpm 0~3.0 Traveling speed km/h 0~1.6 Gradeability 40 Ground pressure MPa Total outline dimensions (L W H) mm DongFeng Cummins Rated power/rotational speed kw/rpm 132/2200 Max. output torque/ rotational speed Nm/rpm 750/1300 Emission standard EU Stage II Track space ground contact track shoe width mm mm Retract the track frame Extend the track frame 1 QUY50 QUY50 2

4 3 Outline Dimensions and Weight of Main Transport Components 1 Boom system 2 Mechanisms Outline dimensions and weight Basic machine: 31t Counterweight I: 8t The boom is lattice structure and made of high-strength tubular product. Main boom Main boom 13m 52m Adjusting ened boom section for main boom 3m, 6m or 9m Fixed fly jib Fixed fly jib 6 15m Adjusting ened boom section for fixed fly jib 3m Main boom + longest of fixed fly jib 43m 15m Main hoist mechanism It consists of concealed axial piston hydraulic motor, balanced valve, reducer, normally closed brake, clutch and wire rope. It is independent of other mechanisms to be operated. The main hoist mechanism possesses free-fall function. (Optional) The main hoist mechanism is two-speed type, having two kinds of lifting speeds, which can improve working efficiency. Auxiliary hoist mechanism It consists of concealed axial piston hydraulic motor, balanced valve, reducer, normally closed brake and wire rope. It is independent of other mechanisms to be operated. The auxiliary hoist mechanism is two-speed type, having two kinds of lifting speeds, which can improve working efficiency. Boom hoist mechanism It consists of concealed axial piston hydraulic motor, balanced valve, reducer, normally closed brake, pulley block and wire rope. It is independent of other mechanisms to be operated. It has ratchet self-locking protecting mechanism, which can prevent luffing gear from slipping because of long time parking. Slewing gear It consists of concealed axial piston hydraulic motor, gear reducer, brake, pinion gear and slewing ring. The superstructure can realize 360 slewing via slewing ring which is driven by pinion gear. Since slewing gear adopts closed hydraulic system with controllable sliding control, it is steady to start or brake slewing without impact. With internal gear slewing ring and slewing reducer, slewing gear possesses the advantages of great load capacity and high accuracy to ensure the stability and accuracy of slewing. Slewing can realize stepless speed regulation varying from 0 to 3r/min. The slewing gear can be locked by two mechanical locking devices in front of the slewing table. Technical instruction Counterweight II: 8t Traveling mechanism It adopts double-motor and double-reducer. Two sets of control levers respectively control two tracks traveling to realize straight-line traveling, one-sided steering, differential steering, spot turn and traveling with load etc., which ensure the crawler crane has great mobility and flexibility. Traveling speed: 0 1.6km/h Gradeability: 40. Tension degree of track can be adjusted by jack. It is very quick, convenient and reliable. Mast mechanism It consists of mast, pendant plate of mast selfassembly/dismantling pendant plate etc. It is used for selfassembly/dismantling of the crane. Before doing this work, the mast should be turned back to connect the pendant plate, disassemble and assemble the counterweight. The mast must be laid flat on the rear side of slewing table during traveling. Counterweight and counterweight assembly/dismantling mechanism It consists of two pieces of counterweight, mounting pin of counterweight, fixing chain etc. QUY50 crawler crane can realize self-assembly/dismantling of counterweigh. Track telescoping mechanism The track frame is connected with frame by outriggers, and its extending and retracting is driven by telescoping cylinder. The telescoping cylinder is mounted inside the track frame and its two ends are connected to track frames. 3 QUY50 QUY50 4

5 3 Systems 4 Safety equipment 5 Operator s cab 6 Hook Technical instruction Hydraulic system Hydraulic system consists of main pump, control valve, hydraulic motor, hydraulic oil tank and cooler etc. Hydraulic system adopts advanced pump control system in the world and its main components have advantages of high efficiency, energy-saving, high reliability and long service life. Main hydraulic pump: driven by engine. Slewing pump is imported from Germany. Oil source of auxiliary mechanism: gear pump. Main control valve: pilot electro-hydraulic control valve Control method of main loop: variable displacement main pump+ main reversing valve. They are both controlled by two operating handles. Cooler: aluminium radiator with electric fan. Electrical system This system with 24V DC and earth negative, has two 195 AH accumulators. It mainly includes power, engine start, engine shut-down, indicator light, annunciator, illumination, fan, wiper, horn, hoisting limiter, hydraulic oil cooling fan, digitized display, PLC controller, preheating device for engine and safety equipment etc, which ensure safe operation and excellent working environment of the crane. The complete vehicle adopts CAN-bus technology, which connects with PLC controller and digitized display efficiently, and possesses trouble detecting and self-diagnosis function. Power system Dongfeng Cummins Engine: in-line six cylinder, supercharged, water-cooling engine Rated power/rotational speed: 132kw/2200r/min Max. torque/rotational speed :750Nm/1300r/min Fuel tank capacity is 300L which ensures long working hours of engine. Emission standard: comply with the standard of U.S. and EU Stage 2 Load moment limiter It consists of load moment display and digital LCD. When actual load moment reaches 90% of rated load moment, the warning lamp lights up and the buzzer alarms; when it reaches rated load moment, the crane stops working automatically to prevent accidents from occurring due to overload during operation and ensure normal and safe work. It displays following data: Moment ratio Elevation angle of main boom Main boom Working radius Actual load Permissible lifting load Max. permissible lifting height Hydraulic system The overflow valves in the hydraulic system can restrain abnormal high pressure in loop to prevent hydraulic oil pump and hydraulic motor from being damaged and prevent hydraulic system from overloading. Hoisting limiter Prevent hook from lifting excessively and avoid accidents occurring. Boom angle indicator It is mounted at the lower rear side of foot section (namely the right side of operator s cab). The driver can observe the elevation angle of boom clearly from the cab. Motion limiter The system can ensure that the angle of actuating arm is within the specified range. Level sensor of the complete vehicle Detect the level state of the complete vehicle. It adopts all-steel structure. Its four sides are made of hardened glass, and the roof and the front window are furnished with laminated glass. It is equipped with right sun visor, adjustable seat, wiper, electric control handles, load moment display, digitized display, auxiliary remote control box operation assembly of switches, air conditioner, fan, illumination lamp, radio (it can be equipped with CD player or DVD player), cigarette lighter, fire extinguisher etc. It provides wide vision, spacious and comfortable space for operator. 50 t hook with 5 sheaves 16 t hook with 1sheave (optional) 6 t hook without sheave Technical instruction Centralized display system Large LCD possesses the function of Multilanguage display and can display operating signals collected by PLC controller, such as revolutions of engine, water temperature, fuel pressure, hydraulic pump pressure, pressure of main motors and operating level of basic machine etc. It can monitor working state in real time and give out a yellow or red warning signal when the working state of crane is abnormal. Anti-unhook device Prevent load from falling off from the hook when lifting. Ratchet locking mechanism of luffing gear Prevent luffing gear from sliding down because of long time parking. Over-wind and over-release protection device for wire rope Anemoscope 5 QUY50 QUY50 6

6 Entire self-assembly dismantling function Take self-assembly/dismantling under fixed fly jib operating condition for example Self-assembly/dismantling function Self-assembly/dismantling function 7 QUY50 QUY50 8

7 1 Main boom Main boom lifting height curve Main boom load rating chart (1) Main boom working radius number of lines Lifting height(m) Working radius(m) Note: 1. The lifting loads in the table include the weight of hook and the weight of wire rope between boom head and hook. 2. When lifting load with runner, the lifting capacity is the same as that of main boom with the same at the same working radius. 9 QUY50 QUY50 10

8 2 Fly jib Fly jib lifting height curve Lifting height(m) Lifting height(m) Working radius(m) Working radius(m) Diagram of main boom + fly jib lifting height curve (The angle of axial line of main boom to the axial line of fly jib is 10.) Diagram of main boom + fly jib lifting height curve (The angle of axial line of main boom to the axial line of fly jib is 30.) 11 QUY50 QUY50 12

9 Fly jib load rating chart Fly jib load rating chart main boom fly jib working radius main boom fly jib working radius 13 QUY50 QUY50 14

10 Fly jib load rating chart Fly jib load rating chart main boom fly jib working radius main boom fly jib working radius 15 QUY50 QUY50 16