What are the categories of cranes?
The crane is divided by the lifting property: floating crane, tower crane, mast crane. In the driver mode: one type of drive, which drives the active wheel on both sides with an electric motor drive the long drive shaft. The other type is driven by an electric motor, which is driven separately by the active wheel on both sides. More medium and small bridge crane brake, reducer and motor group synthesis drive mode, the integration of the "triad" big lifting weight of ordinary bridge crane for ease of installation and adjustment, drive often adopt universal coupling. According to structure form, the crane is mainly divided into small light lifting equipment, bridge frame (bridge, gantry crane), arm posture (self-propelled, tower, portal crane, rail, pontoon type, mast crane), cable type.
Single main beam door crane Single main beam cantilevered portal crane structure is simple, the manufacturing installation is convenient, the quality is small, the main beam is more than the orbit box frame structure. The overall stiffness is weaker than the double main portal crane. Therefore, this is the form when the weight Q is less than or equal to 50t, and the span S is less than 35m. Single main door beams crane gate legs have L type and C type two kinds of forms. L make convenient installation, good force, its quality is small, but, lifting the goods through the leg space is relatively small. The c-shaped foot is tilted or bent, with the aim of having large horizontal space in order to make the goods pass smoothly. (b) double beam bridge crane Double beam bridge crane by straight rail, crane girders, lifting the car, electric transmission system and electric control system composition, particularly suitable for hanging and big lifting weight range of plane material transfer.
Bridge crane Can be above the rectangle area and its operation, used in the place such as workshop, warehouse, open storage of goods loading and unloading, a beam cranes, gantry cranes, cable crane, vehicle bridge, etc. (1) beam crane: beam crane mainly includes single beam bridge crane and double beam bridge crane (2) bridge crane: The bridge crane is a kind of bridge crane which is operated by a bridge in elevated orbit. Bridge crane bridge along the laid on on both sides of the elevated rail longitudinal operation, lifting trolley along the bridge is laid on the orbits of the horizontal run, constitute a rectangular scope of work, can make full use of bridge the space below the lifting materials, from the ground equipment obstacles. In the form of the main beam structure
Light lifting equipment Light and small hoisting equipment is characterized by light, compact structure, simple action, and a range of projective points and lines. Light, small lifting equipment, usually only one lift mechanism, it can only make heavy weight to make a single lift movement. Among them: jack, block, hand (gas, electricity), hoist, etc. Electric gourds are often fitted with running cars and metal frames to expand the scope of the work. Electric hoist The CD1 and MD1 series of steel wire rope electric hoist are based on the original CD and MD type. It has compact structure, lightweight, safe and reliable, large parts of general degree, strong interchangeability, high lifting capacity, maintenance is convenient wait for a characteristic, is widely used, popular light lifting equipment. The gourd has a fixed and small car type. Fixed by the fixed leg on the up, down, left, right location is divided into different A1, A2, A3, A4 type, can be directly installed on the frame is used, the car has run function, can be installed on the track.
