Electric Overhead Travelling Crane

Dejun brand electric overhead travelling crane

 

The selection of the main mechanical component materials of the electric overhead travelling crane should consider the use environment and working conditions of the crane, and the mechanical properties of the material are not lower than the requirements of Q235-B in GB/T 700-2006 "Carbon Structural steel" or Q345B in GB/T 1591-1994 "Low alloy high strength structural steel".

 

 

Techinal sheet

 

Lifting Weight(t)	1				2				3				5				10				16				Customized
Span(m)	7.5	10	15	18	8	13	18	27	7.5	12	18	23	8	12	15	18	8	12	15	20	12	19	25	28	Customized
Working Speed (m/min)	Ground 20								Ground 20								Ground20				Ground 20				Customized
Hoisting Height(m) Customized	Customized
Working Class	A4 or Customized
Electric Current	Customized

 

Application range

 

It is widely used in the transfer, assembly, inspection and loading and unloading of industrial and mining enterprises, warehouses, machining workshops, auxiliary workshops of metallurgical plants, stock yards, power stations, etc. Production workshops and other places where the frequency of use is low or the number of times the rated lifting capacity is lifted is small.

 

It is forbidden to use in the environment of flammable, explosive and corrosive media.

 

 

Product Description

 

1. Designed and manufactured according to the standard JB/T1306-2008, it has the characteristics of reasonable structure and strong rigidity of the whole machine.

 

2. The whole machine is used together with CD1, MD1, HC and other types of electric hoists.

 

It has two independently operated electric hoists, which can independently complete the lifting of workpieces, and can cooperate with each other to complete the turning of large workpieces. At the same time, each control handle can independently control the shared cart running mechanism.

 

3. The lifting capacity is 1+1--16+16 tons, the applicable span is 5-35 meters, the working level: A3, A4, and the working environment is within the range of -25°C~+40°C.

 

4. The overall transmission adopts a soft drive motor and a reducer to ensure its low noise and stable moving performance.

 

5. According to the needs of the customer's on-site working conditions, it can be equipped with frequency conversion for the cart, frequency conversion for hoisting or double-speed hoist operation, so that the operation of the crane (crane) is stable and reliable.

 

Metal structure precautions

 

The metal structure of the overhead travelling crane should have the strength, rigidity and stability to meet the safe use, and generally should meet the relevant requirements of GB/T 3811-1983 "Crane Design Code".

 

The crane structure design must take into account the convenience and possibility of manufacturing, transportation, installation and maintenance, inspection, etc. The structure of the crane working in the open air must avoid water accumulation.

 

The selection of base material thickness of main structural parts such as main beam, end beam, trolley frame and spreader beam should be based on the actual working environment of the crane, considering the influence of structural corrosion and service life.

 

When the crane main beam loses its overall stability, it is not allowed to be repaired and should be scrapped.

 

When the main beam of the travelling crane, the end beam, the trolley frame, the beam of the spreader and other main structural elements have obvious corrosion, they should be inspected, measured and calculated. When the calculated carrying capacity cannot reach the rated carrying capacity, it should be repaired to meet the requirements of use, or reformed to reduce the rated lifting weight, otherwise it should be scrapped.

 

When the rated lifting weight is reduced, the modification nameplate and the rated lifting weight mark shall be added.

 

When the main beam of the crane, the end beam, the trolley frame, the beam of the sling and other main stress structural parts have cracks, the travelling crane should be stopped in use, only the impact of the crack and take measures to prevent the crack from continuing to expand the safety evaluation to confirm that it can be used, or replace the cracked structural parts, it can continue to use, otherwise it should be scrapped.

 

Dejun brand electric overhead travelling crane main beam, end beam, trolley frame and other main structural parts work because of plastic deformation.

 

If the mechanism cannot operate normally and safely, it shall be scrapped if it cannot be repaired.

 

When the crane structural parts need welding repair, the welding materials used should meet the welding requirements of the original structural parts, and the welding quality should be guaranteed.

 

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