Casting Yard Gantry Cranes

It is composed of main beams, support legs, connecting frames, connecting beams, trolley running rails, walking platforms, railings, ladders and other auxiliary metal structures. The support legs adopts a set of rigid legs and a set of flexible legs.

The main beam, the connecting beam, the support legs and the connecting frame are connected together by high-strength bolts and pins. The simple truss structure door frame has light overall weight and small windward area, which can effectively reduce the wind load.

It is mainly composed of the hoisting mechanism (JM winch), the trolley frame and the trolley running mechanism. The JM electric winch is composed of the motor, the coupling, the brake, the reducer and the drum, which are installed on the frame together.

The trolley frame is a combined structure of plate and section steel welded together, which has sufficient strength and rigidity to ensure that the trolley frame will not affect the normal operation of each mechanism after being deformed under load. The trolley adopts a sealed rain cover, and the rain cover has lighting measures.

If required by the customer, an electric hoist (as a secondary lifting mechanism) can be used for small lifting.

It is composed of the motor, the reducer, and the wheel set,etc. The wheel drive shaft is directly connected to the low-speed end of the reducer (or is connected by a coupling). This structure is conducive to the installation, maintenance and disassembly of the wheel device.

The entire crane driving device has simple structure, low noise, generous appearance, safe and reliable use, and convenient installation and maintenance.

Angle box wheel set is adopted, the crane wheels are double-rim wheels, the trolley wheels are single-rim wheels, the wheel material is ZG340-640, the treads of the wheels are heat treated, the hardness range is HB330-380, and the quenching depth of the crane wheels is not less than 20mm, the quenching depth of the trolley wheel is not less than 15mm, and the hardness at the quenching depth is not less than HB260.

It is equipped with rail clamps, anchoring devices, buffers, and rail sweepers;

The power distribution system is composed of main circuit breaker, main power contact and overcurrent protection;

Protection devices include short-circuit protection, over-current protection, loss of voltage protection, zero protection, ascending limit protection, travel limit protection, overload load limiter, emergency power-off protection, trolley sound and light alarm, electrical interlock protection device,etc.

Crane power supply: trolley wire or cable drum;

Trolley conductive: mobile cable trolley.

Safe and reliable ladders, platforms and walkways are provided where operation, inspection, and maintenance are required, and there is sufficient working space. The ladder and platform are formed by bending steel pipes and angle steels. The platform is covered with non-slip patterned steel plates, and the bottom of the platform is equipped with a protective plate.

It is set on rigid legs. The driver’s cab is the working place where the operator controls the crane. It adopts a closed driver’s cab. Its structural type design not only considers various functional requirements, sturdiness, durability, safety and reliability, but also considers a good view, comfortable and beautiful, so that the driver feels comfortable during operation, and the layout of the driver’s interior fully reflects humanity and meets the needs of the demander.