Universal bridge crane

Universal bridge crane

Universal bridge crane for heavy industry	Large tonnage bridge crane
Refuse crane	Suspended molten yznal

1, End Carriage:
Adopt european-style beam structure, strict and high quality.The wheel group is the product seriation, with center shaft spline drive, compact structure, easy installation and maintenance.
The triad drive mechanism, F class insulation frequency conversion motor, electric sustained rate of 40%, ED, reliable quality, novel style and small beautiful beautiful.Small size light weight, low noise high efficiency and easy installation walk smoothly, safe and reliable braking sensitive (parking or power can be in 1 seconds automatically brake), and frequency control of motor speed, it represents the world technology development trend in this century.



2, main girder:
Welding box, camber in accordance with national standards.
Web materials by cutting the whole picture, to ensure the smooth shape of the camber curve and precision.
Automatic submerged arc welding, NDT is used in the main weld.
The whole beam shot blasting treatment after welding, achieve Sa2.5 level, eliminate the welding stress.
Epoxy zinc-rich paint, the bottom of the two sides, 140 mu of thick, long life, beautiful appearance, good luster.

3, the lifting mechanism:
Crane hoisting mechanism adopts winding structure, the structure of motor, reducer, drum, the motor and reducer connected by flange, drum and speed reducer adopts drum type coupling, design of the whole structure is compact, small weight, low height, rational configuration, high transmission efficiency, reducing energy consumption, high maintenance rate.
Crane large diayzner of the drum and the pulley block greatly prolong the service life of wire rope.Large diayzner drum reduces the hoist hook around the limit, minimize the fleet Angle of wire rope.This kind of vertical lifting to ensure the precise positioning of load.Cable drum made from Q345B, by precision machining can ensure the accuracy of wire rope and wire rope, and effectively prevent the overlap of wire rope winding.Reel is supported by the bottom bearing, steel wire rope through the clamp is fixed on the reel.The minimum lifting point when the wire rope and hook can't be wrong phase rotation.Guidance of steel rope is wear-resisting, which can effectively prevent wire rope chute.Rope guide to the special compression spring on the automatic adjustment of the gap between wire rope and drum, effectively locking.Wire rope pulley block by rolling into Q345B material, large diayzner rope pulley ensure that will not slide off from the pulley.
Hook can rotate 360 degrees with safety clasp device, can effectively prevent the wire rope off.Hook material USES 34 crmo4, according to DIN standard production.
Reducer adopts the sino-german joint venture brands or equal level of products.Gear (lifting and walking gear box) of working in a completely sealed semifluid grease lubricant.Gear box in the life of a crane, lifelong free maintenance, all gear after surface hardening and grinding processing.
Hoisting motor adopts the sino-german joint venture brands or equivalent water product of motor, car running machine all adopt the sino-german joint venture or equal level of product brand frequency conversion motor, the motor insulation class is F, the protection class is IP54.Car motor for the frequency F series motor, controlled by inverter drive.The running speed of variable frequency double speed or CVT.Variable frequency drive can be precise positioning load, reduce the load swing, and wide speed range, easy use safe.Hoisting machine configuration brake manually release, convenient in emergency use.
Lifting brake with double brake.Cart, trolley motor brake using disc brakes, free adjustment.
Hoisting mechanism with tooth rotation limit switch and weight limit switch, dual protection for lifting objects.
Lifting is equipped with overload protection function to ensure that the lifting hoisting does not exceed rated lifting weight bridge, so as to achieve the purpose of safe production.Overload limiter using overload limiter.
Use heavy wire rope, wire rope without maintenance or tu rust-proof oil, heavy, high strength, breaking force not less than 1870 n/was.
The entire history of the lifting mechanism is equipped with maintenance platform, convenient owner maintenance use.


 

4, electrical:
Configuration phase protection function.
Using crane dedicated vibration control contactor.
Electric cabinet anti-corrosion, protection level is IP55.
Control box layout is reasonable, easy to maintenance.
Car mobile power supply system by the flat cable, galvanized slides and cable small block, sliding smoothly.