How can the beam crane achieve the best energy saving effect?
The main beams of single-beam crane bridges mostly use I-shaped steel or a combined section of steel and steel plates.
1. Adopt new theories, new technologies, new materials, new processes, and new methods. New materials can be considered; for example, high-strength nylon instead of cast iron or steel can not only extend the life, but also reduce noise. Try to use H-shaped steel instead of plates, which can also save the consumption of structural materials, and the bending resistance can be improved to a certain extent. Adopting new technology; for example, improving the coating process can well capture the high anticorrosive quality of the paint. Adopting a new method; Changyuan Crane is restricted by the National Automobile Catalogue. To manufacture truck-mounted cranes, it must first declare a modified automobile. It is quite difficult and requires coordination by government departments to solve it, but it is not the case for foreign ones. The advanced design theory is adopted to optimize the structure and reduce the weight of the structure.
2. Improve the control system. The speed control system is changed to a frequency conversion speed control system; the frequency conversion speed control system not only has high efficiency, but also has a better energy-saving effect. Improve the driving mode of truck cranes; the loading and off-loading of truck cranes are respectively equipped with engine drive, which can save energy by about 60%.
3. We can consider reducing the quality of the crane itself, and the measures to reduce the quality of the crane itself can consider reducing the quality of the lifting mechanism. This not only reduces the consumption of its own materials, but also reduces the load on the plant structure. The specific measures are as follows: use high-quality motors and reducers; the quality of motors with the same capacity in China is about one-third more than that in Germany. There are still serious shortcomings in the material and processing technology of the reducer. only when the links are divided and broken can the fundamental problem be solved. Improve the reel form; consider adopting a large-diameter reel to increase the rope capacity and reduce the size and quality of the crane trolley. However, it is necessary to use spiral bevel gear transmission to increase the reduction ratio, which is much more difficult to manufacture.
4. We can strengthen daily maintenance to extend the service life of beam cranes. Daily maintenance work is often ignored by people, so we should strive to improve our shortcomings in order to achieve the purpose of energy saving.