Engineering machinery fittings are the main power components, transmission components, hydraulic components and electrical components and so on. Mechanical power components currently works with almost all internal combustion diesel engine (the diesel); transmission sub-mechanical transmission, hydraulic mechanical transmission, hydrostatic transmission, electric transmission and so on. But most used construction machinery, the most common for the hydraulic mechanical transmission and hydrostatic transmission. The transmission system also includes transmission shaft, driven bridges. Hydrostatic transmission with a variety of structural forms, some with drive shaft, drive axle, and some not, as the case may be; main cylinder hydraulic components, pumps, valves, seals and hydraulic accessories. Hydrostatic components of the pump (mainly variable pump), motor (variable and quantitative), and the corresponding gear, etc.; electrical components prior to the impact of construction machinery is also not large, the first electrical system for construction machinery, mainly starting circuit and lighting circuits, systems and components are very simple, start can be delayed start, work during the day without lighting, therefore, the system broke down two circuits can barely work. But today the development of construction machinery, electrical systems and electrical components has become a critical engineering machinery parts, can be said that the vast majority of today's machinery, electrical system broke down simply can not work, or even move an inch, equal to one iron and steel scrap heap. Therefore, electrical systems, electrical components is currently the most critical machinery one of the most important accessories. In addition to the traditional main components electrical components, there are a variety of sensors, a variety of control components and microprocessor so. The following construction equipment on the international major component parts of these basic views about the situation and development trend.
1 Foreign principal component parts of construction machinery Basic
Construction machinery in foreign countries, most of the major component parts to produce a long history and mature technology, an adequate supply of high concentration of production, brand prominence. With the host of the development of supporting the development of development, while supporting the development of their pieces in turn promote the development of the host. Construction machinery in foreign countries, the situation of the development of supporting the development of the situation better than the host.
1.1 At present the foreign construction machinery component parts to better development of the situation
In recent years the development of foreign engineering machinery has a tendency to gradually master manufacturing business direction to the assembly, parts and gradually by the supplier to provide. Such as the world's most powerful mainframe manufacturers U.S. Caterpillar (Caterpillar), Case (Case), Japan's Komatsu (Komatsu), Sweden's Volvo (Volvo) and so on in the world of these large-scale construction machinery manufacturer enterprise, its component parts is also very strong supporting capacity, outside their allocated number of component parts is greatly increased in every year, some small and medium enterprises particularly construction machinery, parts and gradually mainly by the components manufacturers to provide . This has several advantages, the host company can focus on products to make their hosts, reducing fittings entirely by the host companies to bear their own risks, and accessories business was stronger for greater ability to rapidly improve the accessories quality, technical level, while the host company for more new products, it is easier to promote the development of the host product. Foreign construction machinery enterprises in 1988 reached 85 billion U.S. dollars in sales has largely not changed much, while the opposite years fittings from 15 billion U.S. dollars, up to 100 billion U.S. dollars, an increase is considerable. Therefore, foreign engineering machinery accessories to get the years of rapid development.
1.2 The production of foreign engineering machinery accessories long history and mature technology, full range, and can meet the matching requirements of various engineering machinery
Many foreign construction machinery enterprises are the main accessories for 50 years, or even 100 years of history, size of the business are relatively large, very mature technology, the variety is also very complete, almost everything. Such as the current production of seals and the world's largest enterprise damper, Germany Fuluoyideng Baker (Freudenberg), founded in 1849, production seals and damper than 100 years of history, the species everything, from the Technically, varieties can meet the hydraulic industry seals and sealing technology requirements. Also continue to introduce new materials and new seal sealing structure, hydraulic sealing technology continues to promote higher technical level. In the world's largest manufacturer of large engines, the U.S. Cummins (Cummins) engine manufacturing company, founded in 1919, almost nearly 100 years of history. 37.3kW (50 hp) diesel engine could be all over for a variety of construction machinery, and even all the necessary machinery and equipment for a variety of diesel power, it is technically possible to satisfy the most demanding in Europe II, Euro III emission standards, even to Europe IV, Euro V emission standards.
In the field of fluid products, the world's largest liquid products (mainly hydraulic components, sealing and hydraulic attachments, etc.) manufacturers, the United States, Parker (Parket), founded in 1918, there are nearly 100 years of history, can offers a comprehensive range of high-tech level of hydraulic parts, hydraulic seals, and all accessories. The world's largest hydraulic system for static variable hydraulic components manufacturer, Germany's Dr. - Rexroth, has already had more than 200 years of history, since 1953 overall manufacturing hydraulic components, there are more than 50 years of history. The most unique products for the variable hydrostatic transmission system, hydraulic components, whether or oblique axis inclined plate, closed (pump control) or open (valve) system is very complete variety of hydraulic components, can needs hydrostatic system components throughout the system, complete package of construction machinery. There are the world's largest manufacturer of transmission parts, ZF of Germany, founded in 1915, there are nearly 100 years of history, for all kinds of construction machinery offers a comprehensive range of transmission parts. Electrical accessories, the world's largest electric company Siemens, and Japan's Toshiba Corp., Kawasaki, Germany's Dr. (Bose) Corporation, has more than 50 years, or even 100 years of history, can meet the engineering machinery high levels of a variety of electrical systems and electrical components requirements. I am a professional editor from Chinese Manufacturers, and my work is to promote a free online trade platform. http://www.chinaqualitycrafts.com/ contain a great deal of information about cold climate heat pump , air grease pump welcome to visit!
Related Articles -
cold climate heat pump, air grease pump,
|
