Guangdong Guanju New Material Technology Co., LTD. --LH25T double beam crane and LH32/5T double beam crane acceptance

The "ten should not" of Dongguan crane operation refers to the items that are not allowed to be lifted when the following conditions are encountered during the operation of Dongguan crane. 1. The equipment is sick or strongly shaken and the load cannot be lifted; 2. The wire rope is unqualified and cannot be hung, and the binding is not firm; 3. It is buried in the ground or solidified on the ground without knowing the load; The center of gravity of the object is too slanted;

In order to ensure the safety and reliability of the lifting operation, the crane should be equipped with a complete safety device, so as to protect the machine parts or remind the operator to pay attention in the event of an accident, so as to play a role in safety protection. 1. Each relief valve in the hydraulic system: it can suppress the abnormal high pressure in the circuit to prevent damage to the hydraulic oil pump and motor, and prevent it from being overloaded.

(1) Disassemble and inspect the hooks, shafts, beams, pulleys, and bearings and clean and lubricate them. The hooks, beams, and pulley shafts are not allowed to have cracks. The threaded part should not be loose, and the bearings are in good condition. Those with knife marks or cracks should be replaced; (2) Check the wear condition of the dangerous section, and the wear of the dangerous section exceeding 10% of the original height should be replaced; (3) The test of the hook, after the overhaul, the hook should be tested and checked.

The working characteristics of the crane are intermittent motion, that is, the corresponding mechanisms for taking material, moving, and unloading in a working cycle work alternately. Each mechanism is often in the working state of starting, braking and running in forward and reverse directions. Cranes can be divided into: bridge cranes: because its two ends are located on the supports of tall cement columns or metal rail beams, the shape is like a bridge (overpass).

Cranes mainly include hoisting mechanism, running mechanism, luffing mechanism, slewing mechanism and metal structure. The hoisting mechanism is the basic working mechanism of the crane. Most of it is composed of a hoisting system and a winch, and some lifts heavy objects through a hydraulic system. The running mechanism is used to move heavy objects longitudinally and horizontally or adjust the working position of the crane, and is generally composed of a motor, a reducer, a brake and a wheel.