Several main points of single girder crane maintenance

In our usual use, the single-beam crane is a machine used to lift and move heavy objects. Single-girder cranes usually refer to single-girder cranes. The main girder of single-girder crane bridges mostly uses I-shaped steel or a combined section of steel and steel plates. Lifting trolleys are often assembled by chain hoists, electric hoists, or hoists as parts of the lifting mechanism. They all have a specified rated life. If you carefully maintain it in your daily life, the performance of the single-girder crane will exceed the specified service life. If you are often negligent in the maintenance and operation of the single-girder crane in your daily life If so, the single-girder crane may age prematurely.

Specific method/step

Always check the temperature of the motor housing and bearing parts of the single beam crane, as well as the noise and vibration of the motor for abnormal phenomena.

In the case of frequent starting of single beam cranes, due to the low rotation speed, the cooling capacity of the ventilation is reduced, and the current is large, the temperature rise of the motor will increase quickly, and it should be noted that the temperature rise of the motor cannot exceed the upper limit specified in the manual. Adjust the brake in accordance with the requirements of the motor instruction manual.

When the single-beam crane is not used frequently and the sealing condition and use environment are good, the lubricating oil in the reduction box of the single-beam crane needs to be replaced every six months, and the single-beam crane needs to be replaced every quarter when the environment is bad. Replace it once. When it is found that there is always foam in the water or the oil surface in the tank and it is determined that the oil has deteriorated, the oil must be changed immediately. When changing the oil, the oil must be replaced in strict accordance with the oil product specified in the gearbox instruction manual, and the mixed use of oil must be avoided.

The daily maintenance of the reducer can refer to the manual of the manufacturer of the single beam crane for maintenance, and the anchor bolts of the reducer should be checked frequently, and the connection must not be loosened.

Maintenance and maintenance skills of single beam crane hoisting unit: always observe the oil window of the reduction box to check whether the oil level of the lubricating oil is within the specified range. If it is lower than the specified oil level, the lubricating oil must be added in time.

Grease should be added to the bearing seats at both ends of the single beam crane drum every two days, and the surface of the drum and the wire rope should be greased according to the situation. The rolling bearings of the fixed and movable pulleys need to be refilled with grease once a month.

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