What are the types of crane hooks?
What are the types of crane hooks?
As the best tool for material lifting, cranes play a good role in lifting and carrying heavy objects in people's work. When it comes to crane handling objects, the most important thing is the crane hook. So, do you really understand the hook? What are the categories of crane accessories hooks do you know?
1, generally speaking, according to the shape of the crane hook can be divided into a single hook and double groove, if the manufacturing method, it can be divided into forged hooks and sheet hooks. Single hook manufacturing and easy to use, used for lifting lighter weight objects; and double groove weighing more, generally used for lifting heavier objects. General forging single hook is mainly used for lifting 30T crane, double hook for lifting 50T-100T crane; sheet single hook for lifting 75T-350T, double hook for lifting more than 100T crane.
2, and then look at the hook hook body cross-section shape, generally are round, square, trapezoidal and "T" shape. According to the force situation to analyse, "T" cross-section design is the most reasonable, but the forging process is also more complex; trapezoidal cross-section force is more reasonable, forging is easy, and rectangular (square) cross-section is only used for sheet hooks, cross-section of the load-bearing capacity is not fully utilized, the more bulky, round cross-section is only used for small hooks.
As for the tail of the hook forging if the use of triangular threads, because of this structure of the stress concentration is serious, easy to break at the crack, so in the tail of large hooks more trapezoidal or serrated threads.
