What kinds of types of cranes are there
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 The main beam of the single beam bridge crane bridge is made of the composite section of steel and steel. The lifting car is often assembled from a hoist, an electric gourd, or a hoist with a hoist. There are two kinds of supporting and hanging type in the bridge. The crane track of the former bridge over the beam of the car; The bridge of the latter is in a crane track suspended under the frame of the workshop. Single beam bridge crane breakups, electric two kinds. Manual single-beam bridge crane institutions working speed is low, the weight is small, but its quality is small, easy to organize production, low cost, suitable for no power after carrying amount is not big, requirements for speed and productivity is not high. Manual single beam bridge crane adopts manual monorail car as the running car, and as the lifting mechanism, the bridge is made up of the main beam and the beam. The main beam is usually made of single piece of steel, and the end beam is welded with a shape or steel plate. The electric single beam bridge crane works faster, the productivity is more manual and the weight is larger. Electric single-beam bridge crane is operated by bridge frame and large car
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.
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.
The portal crane is classified according to the structure of the frame, the form of the main girder and the hoisting form. It is commonly used in ports. In the form of door frame structure (a) all gate crane: the main beam has no suspension, the car is carried out in the main span. (b) semi-portal crane: the legs are low and low, depending on the requirements of the site. (c) double cantilever portal crane: the most common form of structure, the force of the structure and the efficient use of the site area are reasonable. In the form of the main beam structure
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. The characteristic of a bridge crane is that the weight on the hook or other device can be lifted vertically or horizontally in space. The bridge crane includes: hoisting mechanism, large and small car operation mechanism. Depending on the action of these institutions, the weight can rise and move in a certain square space. The bridge crane, the loading bridge, the metallurgical bridge crane, the cable crane, etc. The bridge crane is widely used in indoor and outdoor warehouses, workshops, docks and open storage areas. The bridge crane can be divided into three kinds: ordinary bridge crane, easy beam bridge crane and metallurgical special bridge crane.
