Crane maintenance is the guarantee of Europe type crane that can be an important foundation for longer service life, to work on that part of the work, the first thing we should start from the three systems of Europe type crane.
European type single girder overhead crane
Mechanical system, hydraulic system, electrical system is the modern European crane main system organization, European crane maintenance is on the three systems.
European type bridge crane
The first is the maintenance of mechanical systems, this part covers the European crane steel structure, the structure of the transmission coupling, limit, etc., the focus of the maintenance mainly depends on rust, lubrication, safety testing, etc.
Followed by the maintenance of hydraulic system, despite all kinds of hydraulic components of hydraulic system itself, the structure of sealing and so on need to do daily maintenance, replacement of hydraulic oil and use also were included in this part of the maintenance content.
Third is the maintenance of electrical systems, for the Europe type crane, that part of the maintenance situation is directly related to the use of the crane safety, especially the various sound-light alarm, emergency protection electrical devices. Therefore, in European crane maintenance, power system maintenance is often the main content of maintenance.
European Type electric hoist Maintenance Techniques
Europe type electric hoist is a small-sized lifting equipment, applicable to buildings, roads, metallurgy, mining and other infrastructure projects of mechanical equipment. European type electric hoist use and some maintenance techniques.
European type Electric hoist
- New installation or after overhaul of electric hoist, first of all should be empty test run several times.
- Should be done before normal use with 125% rated load, lifting off the ground is about 100 mm, 10 minutes of static load test, check whether the normal.
- Dynamic load test on the rated load weight, lifting and moving test repeatedly, after test to check the mechanical transmission parts, electrical parts and the connection is normal and reliable.
- In use, absolutely forbidden in not allowed, environment, and more than the rated load and rated closing times (120) per hour.
- Before installation and maintenance, working personnel must strictly check the limit switch, and make sure the limit switch is flexible and reliable, when the hook rose to the limit position, hook enclosure to the drum shell of distance must be greater than 50 mm (10 t, 16 t, 20 t must be greater than 120 mm).When the hook fell to the limit position, should ensure the safety of steel wire rope on the drum circle, effective safety strap (must be at least 2 laps).
- Do not allow the press both electric hoist pushing in the opposite direction of movement of the flashlight door button.
- After the completion of the work, electric hoist must be total power brake away, and cut off power supply.
- Electric hoist by specialist manipulation, manipulator should fully grasp the safety operating rules, it is strictly prohibited to slanting inclined condole.
- In the process of using, electric hoist must be regular inspection. Specialized personnel finds fault and takes timely measures, and carefully record.
- Adjust electric hoist brake declines, shall ensure that under rated load, brake in S V / 100 or less (V for stable hoisting loads a minute distance).
- Scrapping standard of steel wire rope, wire rope inspection and rejection standard according to CB/T5972-1986 "code for wire rope inspection and scrap for cranes and practical execution.
- Electric hoist must keep enough lubricating oil in use, and keep the oil clean and should not contain any impurities and dirt.
- Wire rope grease should be used when the hard brush or wood small pieces, it is strictly prohibited to lubricate the wire rope is working by hand directly.
- Electric hoist does not work, does not allow the heavy weight suspended in the air, to prevent permanent deformation parts.
- In the process of using, if you find fault, shall be immediately cut off the main power supply.
- Should pay special attention to vulnerable parts in use.
- 10 ~ 20 tons of electric hoist after long time continuous operation, automatic power outages may occur, this belongs to motor overheating protection function, can decline at this time, over a period of time, after waiting for motor cooling, can continue to work.
Crane maintenance and inspection should be operated by professionals. Dongqi Group not only sell cranes and hoists, but also supply crane installation and crane maintenance service. If your company has need about cranes or hoists, please contact me freely.
