How to divide the working level of electric single girder suspension crane?

The working class is a work characteristic that takes into account the degree of utilization of lifting weight and time, as well as the number of duty cycles.

The working level of the crane, that is, the working level of the metal structure, is determined by the main lifting mechanism and is divided into A1-A8 levels. The electric single girder suspension crane can be installed directly on the roof of the existing plant. Structural I-beams.

Above. Therefore, it is not necessary to install rail bearing beams and crane rails, so that the customer can reduce costs, and use the entire plant area for production, and by using side end cantilever arms, the trolley can travel beyond the crane gauge, so that the customer can use the plant area more efficiently

The electric jib crane is a new product developed with reference to the equipment introduced from West Germany, and the special lifting equipment designed according to the needs of users. It has the advantages of novel structure, reasonable, simple, convenient operation and use, flexible rotation and large working space, and is an energy-saving and efficient material lifting equipment. It can be widely used in the production line and assembly line of factories and mines, workshops.

and the lifting of heavy objects on the upper and lower workpieces of machine tools and warehouses, docks and other occasions. This machine is composed of column, slewing arm and electric chain hoist, etc. The lower end of the column is fixed to the concrete.

On the basis, the swingarm rotates, and can be rotated according to the user's needs. The rotary part is divided into manual and electric rotation (cycloidal pinwheel reducer is installed with the upper supporting plate or the lower supporting plate to drive the rotating arm of the rotating tube to rotate). The electric chain hoist is installed on the jib track and is used to lift heavy objects.

The main technical parameters of the crane.

1. Effective lifting capacity: refers to the net mass of heavy objects or materials that the crane can lift.

2. Crane working level kux ironclad construction machinery network - excavator network - construction machinery network.

3. Lifting height: refers to the vertical distance from the horizontal parking surface or running track of the crane to the highest allowable position of the spreader.

4. Rated lifting capacity: refers to the sum of the heavy objects or materials that the crane can lift together with the mass of the divisible spreader. For cranes with variable amplitude, the maximum lifting capacity at the minimum amplitude is used.

5. Total lifting capacity: refers to the heavy objects or materials that the crane can lift, together with the separable spreader and the spreader or attachment fixed on the crane for a long time (including hook and pulley group).

Lifting wire rope and other lifting objects below the boom or lifting trolley).

It is divided by the crane utilization class (the total number of duty cycles over the entire design life) and load state. The load state of the crane is divided into four levels: light, medium, heavy and special according to the nominal load lineage; The utilization level of the crane is divided into U0 - U9 ten levels.

In China, it is all A3 working level, because the working level of the gourd is M3; Besides, the electric single girder suspension is not suitable for frequent use.

The working level of a single beam is divided according to the working environment, use status, etc. (connection continuity rate, lifting load and rated load relationship).

Electric single girder suspension cranes are generally A3 level, but the specific depends on the construction site and environment. Specifically, you can consult Jiangsu Taiqi Heavy Industry **** Technical Department, 0523-80736603, he will give you a more satisfactory answer.

Definition: Monorail suspension crane is a kind of light and small lifting equipment, running on the I-beam track, there are electric and manual, heavy objects are hung on it, relatively simple, and there are many applications.

It is mainly composed of electric hoist, metal structure, cart running mechanism, power feed device and electrical device.

Model: According to the definition of electric single girder crane in standard number: JB T 1306-94:

LD type electric single girder crane refers to: the electric hoist trolley runs on the flange under the main beam, and the electric hoist is arranged under the main beam.

In addition, there are 2 other models of uncommon electric single girder cranes:

1. LDP: LDP electric single girder crane is developed by Tianjin Lifting Equipment General Factory at the end of the 80s, with the introduction of German Starr hoist (AS hoist) and angular trolley, using welded box-shaped girder, trolley track arranged on the web of the girder and side. It is named LDP. in the JB T1306-1994 standard

2. LDC: LDC type electric single girder crane also adopts welded box-shaped main beam, but the lower flange plate is wider and thicker, and the hoist runs directly on the lower flange plate. Demag's EKKE electric single girder crane and KONE's CXT electric single girder crane are of this type.

There are also two kinds of single girder cranes: MH is electric hoist gantry crane (JB, LH is electric hoist overhead crane (JB T3695).

One beam, electric hoist arranged under the main beam of the overhead crane.

The electric single girder overhead crane is designed and manufactured according to the standard JB1306-94 and is used in conjunction with the electric hoist in the form of CD1, MD1 type and AS type, becoming a small crane with rail operation.

The perfect solution for electric single beam derailment and rail gnawing.

Electric single girder crane refers to only one girder, the crane can move back and forth on the guide rail of the single girder, and the left and right movement should rely on the walking mechanism at both ends of the single girder.