Ghost 22 584 states that the hoist – lifting device is a pendant with a manual or motorized. Today, every service station, warehouse and production plant are used in their daily work hand hoist. Depending on preferences, working conditions and the type used by different models: gear chain hoists, lever hoists, wire rope hoists and electric hoists, etc. are allocated (elektrotali) and manual hoists. Electric hoists Electric hoists can be divided into two types – chain and rope. The choice of lifting mechanism depends on the weight of cargo that must move and intensity of use. Tali electric cable today perhaps the most popular in the world of lifting equipment used in companies with high rate of work. In Russia, the technical requirements for cable-talyam stated in GOST 22 584.
Load capacity wire rope hoists are sometimes higher than 100 tons. Payload another variety of electric hoist chain, is no more than 5 tons. The rope used in the first model, a more reliable, easy and cheap traction element than the chain, in which there is always a weak link. That quality makes the traction element model hoists so different in design. Average lifting speed chain hoists within 2 …
5 m / min, and cable – 5 … 12 m / min. Electric hoists are undemanding in operation and are suitable for work at temperatures from -63 to +40 degrees Celsius. Chain hoist is used as auxiliary structures for cantilever-cranes. Elektrotali rope used too and the overhead crane for lifting and transport medium and heavy loads, because the duty on wire rope hoists chain excel. The basis of the assembly in an electric hoist – a block mechanism sotoyaschy of motor, reducer, drum or sprockets, brakes, hooks and lifting element. Drum are only in electric cable talyah, and the star – only to chain elektrotelferah. Tal is equipped with a portable control unit, which enables comfortable control mechanism. Available storage equipment of two types – mobile and stationary. Portable models are moved in the vertical and the horizontal plane. Hand Blocks Tal manual for those companies and industries that have no need for lifting at high altitude and in the fast pace of work. They can be hung on a stationary or mobile cat when there is a need horizontal movement of the loads. Tali ruchnyeshesterennye and lever can primenyatsyadlya lifting and outdoors, and indoors, including in a limited area (trenches, wells). Capacity hoist hand is usually up to 10 tons, in special cases – up to 50 tons (such arrangements are made to order). In the manual gear talyah as heavy-lift element applies round-chain 3 m long or more. In the lifting of the load lever talyah performed by acting on a lever mounted on the hoist. Carrying capacity offered hoists up to 3 tons, lifting height of 1.5 m.
Mining equipment industry has excellent prospect The realization of global economic integration promotes China s industries and enterprises in various fields gradually open up the international market; the mining equipment industry with the most widely used mechanical devices, it is explore the international market successfully and usher in greater development space. In this way, while promoting the development of China s mining equipment industry, the technical level of China s mining equipment is improved. Now, the mining equipment industry in China has been on the right track, all types of mining equipment products have been rooted in the international market, and get a certain degree of competitiveness in the market. Today, the environmental protection industry has been facing the international development, so the development of the mining equipment industry also should tend to environmental-oriented direction; in fact, the traditional large-scale mining machinery in mining operations inevitably impact on the environment, and the mines equipment industry enterprises should pay more attention to improve the level of technology and product reduce resource consumption and pollution of the environment, after all, only the green production model is the key for stable development of the industry. With increasing of foreign economic construction, mining equipment demand is also increasing, which will increase the intensity of competition between the enterprises of the mining equipment industry, it cannot help but to stimulate research and development efforts of the mining equipment in China so that it can stably develop in the fierce competition. At this stage, the mining equipment industry is thought have the most excellent prospects in China. Domestic crusher manufacturersshould continue to improve the technical level of cement plant to strengthen their competitiveness in the vast international mining equipment market and drive the booming of domestic mining equipment industry! Rock crushers: Impact crusher: