Selection and maintenance of crane grab bucket

For the crane grab in this field, we all know that its role is great, not to mention its other advantages, just save time and labor this point is enough to make people love. Therefore, in many lifting equipment, we see a variety of forms, different sites, different loading materials, the crane used is also different. Now let's introduce the wharf, the crane grab used in the port, which items are mainly reproduced?
Crane grab control does not require auxiliary personnel, avoiding the heavy labor of workers, saving auxiliary operation time, and greatly improving the loading and unloading efficiency. Grab crane is a crane assigned with grab, which is widely used in ports, docks, station yards, mines to load all kinds of bulk cargo, logs, minerals, coal, sand, earthwork and so on. Dock crane, grab bucket.
The common failure in the use of crane grab is abrasive wear, according to the relevant data analysis can be found in the form of grab failure, joint wear leads to about 40% of the work performance loss, of which 30% is caused by the wear of the head, and its work performance loss accounts for 30%. 30% of them are due to pulley wear and other parts damage and loss of performance. Therefore, in order to improve the wear resistance of the grab, the blade wear performance must be improved by improving the wear resistance of the grab pin and the sleeve.
Because both external and internal factors will affect material wear. External factors include load, sliding speed, hardness and geometry of the grinding material. The internal factors include the chemical composition of the material, the type of carbide, the microstructure and so on. The external factors are obvious, and I won't go into them here. In order to extend the service life of the grab, different wear-resistant materials should be selected according to the situation of each wear part of the grab, and supplemented by different processing technologies, so as to greatly improve the service life of the grab.