Large cranes are machines used to lift, transport, unload and install materials. It can be completed by the manpower can not complete the material handling work, reduce people's physical labor, improve labor productivity, in factories, mines, stations, ports, construction sites, warehouses, hydropower stations and many other fields and departments have been widely used. With the increasing scale of production, Big Crane Claw Machine especially the requirements of modern, specialized production, a variety of special purpose cranes have been produced, in many important departments, It is not only the auxiliary machinery in the process of production, but also has become an indispensable mechanical equipment in the production line, Big Crane Claw Machine its development plays an active role in the national economy construction.
A large crane is a circular, intermittent action, short-range handling of materials machinery. A working cycle generally includes the process of feeding, transporting, unloading and returning to the original position, that is, the pickup device lifts the material from the pick-up place by the lifting mechanism, Big Crane Claw Machine shifts the material from the running, revolving or luffing mechanism, then the material is decentralized at the designated location, then the opposite action is carried out to make the pickup device return to its original position for the next working cycle. There is a general pause between the two working cycles. Big Crane Claw Machine When working in large cranes, the agencies are often in the alternating state of starting, braking, positive and reverse.
In the construction of roads, bridges and hydroelectric power, the use of large cranes is extremely extensive. Whether it is handling equipment, hoisting plant components, installation of power plant equipment, hoisting concrete, formwork. The use of large cranes is required for excavation of waste and other building materials. In particular, hydropower projects, not only the large scale of the project, but also the special geographical conditions, Big Crane Claw Machine the construction of a seasonal strong, the project itself is very complex, the need to hoist the handling equipment, building materials, a large variety of large quantity of cranes, the need for the number and kind of more.
In the use of large cranes, all moving parts will inevitably produce wear, loose connection pieces, oil deterioration, corrosion of metal structure, which can reduce the technical performance, Big Crane Claw Machine economic performance and safety of large cranes. Therefore, in order to prevent and eliminate the hidden trouble, the large cranes are always in good condition and the large cranes should be maintained.
Do the maintenance of large cranes, can play the following role.
1, to ensure that large cranes often have good technical performance, is the normal and reliable work of various institutions, improve the integrity rate, Big Crane Claw Machine utilization and other management indicators.
2, to ensure that large cranes have good performance, strengthen the protection of structural parts, maintain a reliable connection, electro-hydraulic components and functions of normal, to avoid abnormal vibration due to mechanical and electrical factors, to meet the normal use of large cranes requirements.
3, to ensure the safe use of large cranes.
4, in line with the provisions of the State and departments of environmental protection standards.
5, reasonable and effective extension of the service life of large cranes. Big Crane Claw Machine Through the maintenance of large cranes, effectively prolong the repair interval of large cranes or institutions, including overhaul cycle, and prolong the service life of large cranes.