Lastest News on Crane Industry, Dejun Crane Company & Crane Discount -第7页-Henan Dejun Industry Co., Ltd

How to Increase the Service Life of a Single Girder Crane?

The many advantages of single girder cranes make them widely used in various industries, reduce labour intensity, and greatly reduce the difficulty of work. However, due to differences in operation and maintenance, the service life of single-girder cranes will also vary. So how can we prolong the service life of the single girder crane? If the service life of the single girder cranes can be increased, the capital investment and asset cost of the enterprise can be saved. In order to increase the service life of the single beam crane, we should pay more attention to the following aspects: Do a good job in the lubrication and maintenance of the single beam crane. During the operation of the equipment, if the grease cannot be supplied, it will damage the equipment and reduce the service life if it is operated again. Lubricating positions include: rolling bearings, hook rollers, fixed rollers, and other rolling bearings, gear couplings, braking systems and their computer operating systems, reducer gear shafts, and core movable pins of galvanized steel wire ropes. Check the tightening position frequently. If the anchor screws and nuts are loose, it is easy to cause a safety accident that damages the human body....

Gantry Cranes: the Use of Precautions and How to Maintain

Gantry cranes are common industrial lifting equipment with a high site utilization rate. Gantry cranes are also called frame cranes or portal cranes, which are divided into single girder gantry cranes and double girder gantry cranes. They have a large working range, wide applications, and strong versatility. A gantry crane is indispensable lifting equipment for port freight yards. Gantry cranes must be operated by professionals. Pay attention to safety during the operation. Next, we will give you a detailed introduction to how to properly maintain the single girder gantry crane and double girder gantry crane, and what the precautions are for use. How to properly maintain the single girder gantry crane and double girder gantry crane The main metal structure and main parts of the single girder and double girder gantry cranes can be inspected. Check whether there are welding cracks in the connecting welds and whether the main beam has residual deformation and instability. If problems are found, operations should be halted and corrected. When we inspect the single girder gantry crane and double girder gantry crane parts, we should pay attention to whether there is dirt or wear and tear. The wire rope should be lubricated regularly, and...

How to Install Air Hoists and the Common Faults of Air Hoists

Pneumatic hoists are used in a wide range of fields. Air hoists are very popular in the automobile beauty industry, the motorcycle manufacturing industry, the petroleum industry, and other industries. Because of the advantages of air hoists in safety, explosion-proof, energy savings, and environmental protection, more and more industries are willing to use pneumatic hoists instead of electric hoists. In many automation systems, the pneumatic hoist is often used for replacement. How do you install the pneumatic hoist? Firstly, when we install the air hoist, we must also install the oil-level display device at the same time. Generally, the oil level display device should be installed at the air inlet of the air hoist. If the oil level display device is not installed in time when the electric hoist is installed, the service life of such an air hoist will be shortened after use. Secondly, we must remember to install a gas protection net on the air supply part of the air hoist. After such a gas protection net is installed, it will have a better explosion-proof effect. For the installation of the above, the oil output must be controlled within the range of 5 drops per minute. If the...

Common Causes of Electric Hoist Failures and Corresponding Solutions

Electric hoists will inevitably have some problems of one kind or another during long-term use. Some faults are relatively common. So what are these hoists’ common problems and solutions? (1) Whether the electric hoist has electricity. You can use a test pen to determine whether the power supply system is sending power to the electric hoist power supply. If there is no power supply, wait for the power supply to restart. (2) Damage to the electrical appliances of the main and control circuits of the hoist, disconnection of the lines, or poor contact will also cause the hoist motor to fail to be energized. In this case, it is necessary to overhaul the main and control circuits. The power supply of the three-phase motor lacks a phase and burns the motor, or the hoist motor is suddenly energized to run, causing hazards. Be sure to disconnect the hoist motor from the power line, only supply power to the main and control circuits, and then jog the start and stop switches, check and analyze the working conditions of the control electrical appliances and lines, repair or replace the problematic electrical appliances or lines, and re-test the car when it is confirmed that...

European Overhead Cranes Technical and Application Characteristics

Compared with traditional cranes, European-style overhead cranes have many functions. They are light in structure, easy to operate, and have various intelligent configurations and human-computer interaction functions. Technical and Application Characteristics of European Overhead Cranes The European-style overhead crane adopts a European-style special four-point hoisting mechanism that has a compact structure, lightweight, small size, and low wheel pressure, which can meet the requirements of different factory buildings for bearing capacity and height; it also has a lifting speed expansion function that can reach 1.5 times the rated speed. Low-load rapid lifting, speeding up the working cycle, and the automatic deviation correction function of large and small cars ensure that the wheels of large and small cars are always in the center of the track, ensuring positioning accuracy. The inching and micro-speed functions enable smooth docking with various spreaders, workpieces, and equipment to avoid collisions. The European-style crane adopts frequency conversion control, with stable operation and small impact, which can not only increase the service life of plant equipment, but also improve the comfort of workers’ working environments, and the safety aspect is also more guaranteed. How does the European overhead crane save energy for the factory? The large-scale mechanical equipment...

Double Girder Crane Operating Procedures and Maintenance Requirements

Double girder cranes are widely used in indoor and outdoor industrial and mining enterprises, the iron and steel chemical industry, railway transportation, port terminals, logistics turnover, and other departments and places. Double girder crane operating procedures Double girder cranes are generally composed of three major parts: mechanical, electrical, and metal structures. Double girder crane before work Check parts such as brakes, hooks, wire ropes, and safety devices according to the spot check card’s requirements, and if abnormal phenomena are found, they should be ruled out. The operator must turn off the main power supply only after confirming that there is no one on the walking platform or track. When a lock or notice board is on the power circuit breaker, the main power supply should be closed only after the original relevant person removes it. Double girder crane at work When lifting a heavy object for the first time in each shift (or when the load reaches the maximum weight), the heavy object should be lowered after reaching a height of 0.5 meters from the ground, and the brake performance should be checked to confirm that it is reliable before normal operation. During the operation, the operator should sound the...