Introduction to Truss Type Electric Gantry Crane

Overview of Truss Type Gantry Crane

 The MH electric gantry crane is followed by GB/T3811-2008 "Design Specifications for cranes" and JB/T5663-2008 Standard design and manufacturing of national and industry standards such as "Electric Hoist Gantry Crane". As a lifting agency, the steel wire rope electric gourd of the WH164 and other types, the left and right movement of the upper and lower movement of the hook, the left and right movement of the car. 

The front and rear mobile combinations of the motion and crane form a three -dimensional operation space to realize the movement and flipping of the lifting items.

It is widely used in open-air venues such as docks, cargo farms, warehouses, and construction sites.

The crane is suitable for work level A3 ~ A4. Generally, it is worked outdoors.

Rain Cover of Electric Gantry Crane

The working environment temperature is -25℃~+40℃, the average temperature within 24 hours does not exceed+35℃, the average temperature within 24 hours is super.

At the time of +25℃, the relative humidity allows up to 100%, and the relative humidity at +40℃ temperature does not exceed 50%.

The power supply of the crane is three-phase exchange, and the rated frequency is 50Hz. The rated voltage is 380V. The upper and lower limit of the motor allowed voltage fluctuations is ±10%, and the internal voltage loss of the crane is not greater than 5%.

Electric gantry cranes are mainly composed of: steel structure door frame, large vehicle operating mechanism, electric gourd, and electronic control system.

Related Execution Standard of Electric Gantry Crane

Our company will design, manufacture, and test the contract equipment in accordance with the corresponding terms of the following standards and regulations. In the following standards,

Priority use of national standards and (formerly) mechanical department standards

GB/T 3811-2008 "Design Specifications for crane"

GB 6067-1985

JB/T 5663-2008 "Electric Gourd Gate crane"

JB/T9008-2004 "Steel Wire Rope Electric Gourd"

GB 5905-1986 "Lifting Machine Electric Control Equipment"

Steel Structure Door Rack of Truss Type Electric Crane

The door frame is mainly composed of: main beams, ground beams, legs, ladder platforms, driver rooms and other parts.

The main beam is the main loading component of the gourd-type crane, and at the same time, it is the running track of the electric gourd. The main beam is type by corner steel and other types.

Steel welding support racks and workers steel sets are welded into triangular beams. The main beam is made into an upper arched as required, and the arched degree F on the main beam should be (1/1000 ~ 1.4/1000) S, the maximum upper arch should be located within the S/10 range of the span. Electric gourd car is in the workers.

   Run on the steel wing. When the rated weight and the gourd from the weight of the gourd are located in the cross -medium, the lower scratches must not be lower than the horizontal line, and work normally.

There is no permanent deformation. The sides of the main beam span position are designed with saddle connected to the legs, and the rectangular steel plate is connected to the flange. There is a buffer at both ends of the main beam to ensure the safe operation of the car on the main beam. The ground beam is the basis of supporting the main beam and load. It is also the link between the main beam and the operating mechanism. It is one of the main carrying components of the metal structure of the crane machine. It is mainly composed of corner steel and has a light structure. Good rigidity, beautiful appearance and small welcoming area. There is a buffer at the end of the beam.

When the weighing weight is large, the ground beam is used in the corner box wheel structure. The corner box wheels and the ground beam are connected through the bend plate, positioning key, and bolt. Among them, the ground beam is used to apply a patented technology of our company, the patent number ZL200720090803. 6. A curved label dressing to improve the quality and work efficiency of the curve system. The legs are welded with corner steel welded waist -shaped or right -angle trapezoidal section. The width of the flanges, narrow flank, increase the intensity, stiffness and stability of the door frame. When the span is greater than 30 meters, a pair of flexible legs are designed to improve the operation of the big car. The main beam and symmetrical are arranged on the sides of the main beam to fix the two flanges through bolts, and make the two legs narrow and width to form.

At a certain angle, the "A" -shaped structure is formed, which improves the stability of the crane. The flange between the legs and the steel plate between the beams is connected by bolt. Simple structure, convenient installation, convenient for transportation and storage. The ladder and platforms are shaped by steel pipes and corner steel. A non -slip type steel plates are laid on the platform. The bottom of the platform is equipped with a fence plate; the height of the railing is 1050mm, and there are two horizontal rods with a interval of 350mm. The angle between the oblique ladder and the horizontal plane is 55 degrees, 60 degrees or 65 degrees.

If you have any inquiry of our gantry cranes, please contact us freely.