In various lifting operations, stiff boom cranes have become an indispensable and important equipment in many industrial fields due to their stable structure, strong load-bearing capacity and precise operation. Whether in ship docks, offshore platforms, port logistics, or engineering machinery, stiff boom cranes play a key role. However, the equipment has a high operating frequency and a complex operating environment. If there is a lack of a scientific and effective maintenance mechanism, it will directly affect its service life and operational safety.
As a professional stiff boom crane company, this article will introduce the maintenance skills of stiff boom cranes to help users master the correct methods to ensure long-term and stable operation of the equipment, reduce the failure rate, and improve work efficiency.
1. Regular inspection and cleaning
stiff boom cranes are exposed to various harsh environments during daily operation, and are prone to dust, oil, salt and other corrosive substances. Therefore, regular inspection and cleaning are the most basic maintenance steps.
Cleaning operations:
Cleaning is an important prerequisite for ensuring the normal operation of equipment. Regularly clean dust, dirt and oil stains from the boom, hydraulic system, lifting mechanism and other parts to prevent these dirt from interfering with the movement of the equipment or causing failures. Especially for cranes in environments such as seaports and offshore platforms, salt and water vapor are extremely corrosive, so special attention should be paid to eliminating the influence of these environmental factors when cleaning. Especially after the rainy season or humid weather, thorough drying and cleaning should be carried out.
Check the steel structure:
The inspection of the steel structure should include key parts such as the boom, bracket, and wire rope. Check whether the steel structure has cracks, deformation, rust, etc. to ensure that the load-bearing capacity of the crane is not affected. Deal with rust problems in time and apply anti-rust oil to delay the corrosion process.
2. Maintenance of the hydraulic system
The hydraulic system is one of the core power systems of the stiff boom crane, and its good working condition is essential for the normal operation of the equipment. The quality, oil volume and sealing of the hydraulic oil are the key points of hydraulic system maintenance.
Regularly replace the hydraulic oil:
During use, the hydraulic oil will age due to factors such as high temperature and oxidation, resulting in a decrease in its performance. The accumulation of pollutants in the hydraulic oil will also affect the hydraulic system. Therefore, it is very necessary to replace the hydraulic oil regularly. The replacement cycle is usually recommended to be determined according to the frequency of equipment use and the working environment, generally once a year or every 2,000 hours of work.
Check the hydraulic pipeline:
The hydraulic pipeline is an important part of transmitting hydraulic oil. Check the pipeline regularly for oil leakage and check whether the joints are loose. Hydraulic oil leakage not only wastes oil, but also causes unstable system pressure and even safety accidents.
Clean the hydraulic filter:
The filter in the hydraulic system plays the role of filtering impurities. Regular cleaning or replacement of the hydraulic filter can effectively avoid the accumulation of pollutants in the oil and ensure the stability of the hydraulic system.
3. Electrical system maintenance
With the continuous development of intelligent and automated equipment, the electrical system of stiff boom cranes has gradually become an important part of it. Failure of the electrical system will not only cause the crane to fail to work properly, but may also cause safety accidents. Therefore, the maintenance of the electrical system is crucial.
Check cables and electrical components:
Regularly check electrical components, especially cables, connectors, relays, switches and other components to ensure that they are not worn, aged or damaged. If the cable is found to be exposed, it should be repaired or replaced in time to prevent accidents such as short circuits or fires.
Regularly test the electronic control system:
Before operating the equipment, conduct a comprehensive inspection and test of the electronic control system to ensure that the control system of the crane can respond to operating instructions normally and move flexibly.
4. Maintenance of the lifting mechanism
The lifting mechanism of the rigid jib crane is the core part of the crane. Whether its operation is smooth directly affects the operating efficiency and safety. Therefore, the maintenance of the lifting mechanism is particularly important.
Check the lifting mechanism:
The lifting mechanism includes the motor, reducer, lifting device, etc. In daily maintenance, it is necessary to regularly check the operation of the motor, check the lubricating oil quantity and oil quality of the reducer to ensure its normal operation. The various components of the lifting device, such as the sheave and hook, should also be checked regularly to prevent unstable lifting due to wear.
Check the wire rope:
The inspection of the wire rope is very important. The wire rope is a key component when the crane lifts heavy objects and must maintain good strength and toughness. Regularly check whether the wire rope has problems such as breakage, wear, bending, etc., and replace it in time if problems are found.
5. Maintenance of the braking system
The braking system of the rigid jib crane is an important guarantee for ensuring operational safety. Regular inspection and maintenance of the brake system can avoid sudden brake failure accidents.
Check the brake:
The brake is the core component of the crane's brake system. Regularly check whether the brake is worn and whether it can stop quickly and smoothly. If the brake has abnormal sounds or slow response, it should be maintained and replaced in time.
Check the brake fluid:
Replacing and replenishing the brake fluid is also an important aspect of brake system maintenance. Too little or too dirty brake fluid will lead to poor braking effect and even brake failure. Regularly check the quality of the brake fluid and replace it in time as needed.
6. Maintenance of the drive system
The drive system is another core component of the crane. Ensuring the normal operation of the drive system is crucial to the stability of the stiff boom crane.
Check the motor and drive device:
The motor is the core component of the drive system. It is necessary to regularly check the temperature and vibration of the motor to ensure that there are no faults such as overheating, abnormal noise or vibration. The lubricating oil of the drive device also needs to be checked regularly to avoid damage to the drive system due to poor lubrication.
Check the gearbox:
The inspection of the gearbox mainly includes checking the amount of lubricating oil, oil quality and gear wear. If the gear makes an abnormal sound or the lubricating oil turns black, it should be replaced or repaired in time.
7. Equipment lubrication and maintenance
Lubrication is an important means to reduce friction, reduce wear and extend the service life of equipment. In the daily maintenance of stiff boom cranes, lubrication and maintenance work cannot be ignored.
Regular refueling:
Regularly add lubricating oil to various moving parts, such as lifting mechanisms, booms, brackets, etc., to ensure that these parts can maintain good lubrication during operation. Lubricating oil should be reasonably selected and replaced regularly according to the use of the equipment.
Check the lubricating oil pipeline:
Blocking or leakage of the lubricating oil pipeline will greatly reduce the lubrication effect. Therefore, it is necessary to regularly check the sealing of the lubricating oil pipeline and replace aging or damaged pipelines in time.
8. Seasonal maintenance
Climate changes in different seasons have different effects on equipment. Seasonal maintenance is also an important part of the maintenance work of stiff boom cranes.
Summer maintenance:
The temperature is high in summer, and the load of the equipment will increase. Especially when operating for a long time at high temperature, hydraulic oil and electrical components are prone to overheating. Therefore, in summer, special attention should be paid to the heat dissipation of the electrical system and the replacement of hydraulic oil. Ensure that the radiator, fan and other heat dissipation equipment are clean to prevent overheating and malfunctions.
Winter maintenance:
The temperature is low in winter, and the hydraulic oil and lubricating oil may have poor fluidity, affecting the normal startup and operation of the equipment. Hydraulic oil and lubricating oil that are suitable for low temperatures should be used, and the electrical system of the equipment should be insulated to avoid equipment damage caused by low temperatures.
As a high-value industrial equipment, the stiff boom crane can only ensure that it remains efficient and safe in long-term operation through careful maintenance and care. Through regular inspection, lubrication, cleaning, hydraulic system maintenance, and other measures, the service life of the crane can be effectively extended, the working efficiency of the equipment can be improved, and the frequency of failures can be reduced. It is hoped that the maintenance and care techniques introduced in this article can provide useful references for equipment managers and operators, helping them to better take care of such important equipment in their daily work.
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SHANGHAI HAOYO MACHINERY CO., LTD.
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