EN 
ES Along with our country industrial equipment level enhances unceasingly, as the key industrial plant material lifting equipment, bridge crane and gantry crane, its safe, reliable, free maintenance and other advanced is becoming more and more widely attention. And the crane industry in China there is the gap of the relative international advanced technology, China crane industry innovation has become the national industry revitalization of link, crane equipment such as reducer also closely watched.
Crane smooth operation, reliable, good operability is the common wish of all users. Dongqi crane crane and the trolley running mechanism adopts frequency conversion stepless speed regulation system, good anti swing function make the start of the crane, operation and smooth braking are implemented in the control of.
Hook swing degree is a minimum, the conventional crane big inertia and braking force is not stable factors have been effectively avoided. Good stepless variable speed system can make the hook of the horizontal displacement to even the naked eye cannot detect the subtle level, especially in precision components assembly workshop, the valuables in the loading and unloading occasion, or important artifacts flip section, innovation of the force as the guarantee of the stability of the crane is become hoisting.
Hard tooth surface gear machining technology is mature, has been widely used in the world. High strength, small volume, low noise, no maintenance of machine of decelerate of hard tooth flank of the east is the tong crane is a key technology innovation. Conventional crane in China most use soft tooth surface reducer, large volume, short service life, high failure rate of soft tooth surface reducer has become the bottleneck of crane industry development, is brewing a national crane issues have been in the process of drafting a new standard to eliminate soft tooth surface reducer, machine of decelerate of hard tooth flank optimize crane structure, reduce the weight of crane, the lifting mechanism is more compact and has higher transmission efficiency. Dongqi on tong crane hoisting mechanism, crane driving device and the trolley in the drive mechanism adopts machine of decelerate of hard tooth flank, reshape the crane industry a new starting point. Has the speed limit and phase sequence limit limit of four programmable ceiling is the fundamental guarantee of hook up and down, this is also the east up through the innovation of the crane. Users fear of hook, weight falling summit has become a thing of the past.
Wire rope is key components of the crane, the smaller the diameter of bending, the better, the longer life of wire rope. Speed reducer through a variety of lifting mechanism experimental comparison, some special wire, high strength, galvanized steel wire rope, wire rope strength 2160 N/mm2, more than 50% higher than the strength of the normal product, diameter to more than one third, wire rope life than conventional extended 3 ~ 5 years, and galvanized increased the antirust function, need not apply anti-rust oil on a regular basis. Innovation of the hoisting rope truly the security, long life, free maintenance.
Crane as special equipment, the state of its safety and reliability are very seriously. Brake is the key to the crane safety guarantee. Conventional tile type brake hydraulic push rod is big, poor braking accuracy, heavy maintenance, easy to cause safety accidents. Mr Tong crane adopts advanced electromagnetic disc brake force, one of the lifting mechanism adopts brake with the brake clearance self-compensation function, make the lifting braking torque remain constant, eliminates the slip the hook etc, but also from a large amount of maintenance work.Conventional brake friction disc containing asbestos, brake would produce dust, pollution to the environment. Sealing structure is used in a new generation of brake pads do not contain asbestos, braking does not produce dust, become a real environmental product.
