Crane new and practical development trend

With the construction of national power, petrochemical, steel, transportation and other infrastructure, the market for cranes has rapidly expanded. The trend of large-scale cranes has become an irreversible fact. In order to reduce production costs, save manpower and resources, the demand for large cranes also gradually expanded, and the weight requirements for cranes are increasing. Lifting speed requirement is higher and higher, it is bound to increase the demand for energy consumption control and crane performance. As an important part of the automated production process, simple operation, high safety, reliable performance, easy maintenance is the basic requirements of the crane, in addition, cost-effective crane will have more market in the future.

To this end, the specialized cranes that meet the needs of all kinds of work are constantly being developed and put into use, with special cranes such as nuclear power, paper making and garbage disposal. The special performance of the crane can also meet a wide range of work environment, such as anti-corrosion, explosion-proof, insulated electric hoist cranes.

As you can imagine, with the country began and accelerate the development of urbanization construction, such as rail transportation, construction, energy and water conservancy, and many other aspects of construction, but also to the development of China's crane industry provides a more broad development prospect. In the next 3 to 5 years, the crane market in China will be even more exciting. The type spectrum of products from 100 tons to 1000 tons will be more intensive and the electric hoist technology will be more mature. people will gradually from the original in Chinese companies have breakthrough in the "the world's biggest surprises to calm down, and more deeply into the engineering application and user needs.

The structure of the crane adopts thin-wall section and special-shaped steel to reduce the welding seam of the structure and improve the anti-fatigue performance. The new material of high strength and low alloy steel is adopted to improve the bearing capacity, improve the stress condition, reduce the self-weight and increase the appearance. The bridge structure of the bridge crane adopts the box four beam structure, the main beam and the end beam are connected by high strength bolt, which is convenient for transportation and installation.

The crane further develops the new transmission parts and simplifies the organization."Three-in-one" operation is the motor, reducer and brake as a whole, has a compact structure, beautiful light, easy to tear open outfit, easy adjustment, stable operation, supporting the advantages of large range, has been widely used abroad to all kinds of crane travelling mechanism. In order to simplify the structure of the small and medium tonnage, reduce the height of the crane and reduce the wheel pressure, a large number of electric hoists have been adopted as lifting mechanism at abroad. In order to reduce weight, improve the bearing capacity, improve the conditions of processing and manufacturing, increase the product yield, spare parts adopt welding for cast as far as possible, such as reducer shell, drum, pulley and rolling welded structure. Reducer gears are made of hard teeth to reduce weight, reduce volume, improve load capacity, and increase service life. Hydraulic push rod disc brake applications are also growing. In addition, the motors used by various agencies have been developed to high speeds, reducing the number of motors, reducing weight and reducing overall dimensions, and the brake with small braking torque can be used.

The crane has developed a good performance, low cost, high reliability speed regulation system and electric control system, and developed semi-automatic and automatic control.Using electromechnical hydraulic integration technology to improve the performance and reliability of the crane.

In the face of the good momentum of the development of China's crane industry, we should pay attention to the mechanical technology, research and put forward the countermeasures for the sustainable development of the crane machinery and equipment. But for independent innovation, to build their own brand, promote the development of strategic, innovation lead development, to make their own ability to achieve the long-term development of the industry, then should strengthen the cultivation of intellectual property rights.