Single-girder cranes are widely used on construction sites of large-scale projects, which can help the project to be carried out effectively. Bearings are a very important part of single-girder cranes, but if you do not pay attention to maintenance and correct use, it will easily lead to rust and affect normal use. Surface cleaning For the cleaning of bearings, an appropriate method must be selected according to the nature of its material and environmental conditions. Common cleaning methods include chemical treatment cleaning, mechanical cleaning and solvent cleaning. And it should be noted that the surface also needs to be dried after cleaning. You can use filtered dry compressed air to dry it, or use a dryer to dry it. In addition, under simple conditions, the bearing can also be wiped dry with a cotton cloth.
During the operation of the single-girder crane, it must bear various loads (such as static load, dynamic load, alternating load, impact load, vibration load, etc.). During the operation, the complexity of the load is not only reflected in the variety of loads. Sexually, and with different working conditions during the operation, it shows changeable characteristics.
At present, single-girder cranes mainly have four major safety devices, including wind protection device, anti-collision device, safety hook and swing locking device. The windproof device is mainly for construction in windy weather to avoid the roll of the crane. The more mature ones include rail clamps, anchoring devices, and wind speed alarm limiters.
Collision avoidance is to avoid the collision between the single-girder crane and the building on the side, which can effectively reduce the incidence of accidents. The safety hook is to prevent the object from falling when hoisting. The slewing locking device prevents the boom from rotating during transportation or operation, which affects the construction work. In short, the safety device is one of the necessary components, and it often determines the quality of its performance.