Crane lift safety knowledge you need to know

With the increase of the construction machinery, all construction machinery are equipped with a crane lift equipment, so today the crane editor tell you how to do maintenance work tower crane equipment.


Safety Tips
a. professionals are not free removable appliances to prevent electric shock or incorrect connections.
b. lift work platforms below overhaul must Diaozhu support the work platform lifts, lifts to prevent a sudden drop in casualties.
c. shall be arbitrarily adjust the relief valve. Each hydraulic system components are working at a predetermined pressure. After any adjustment relief valve may cause abnormal operation of the hydraulic system. Human, machine, material, there will be unnecessary damage.
between any part of the d. the hydraulic system, you must first relief, in order to avoid pressure oil spray, table suddenly decline.

Monthly maintenance
a. wheel, intermediate shafts and bearings, cylinder pin and bearing, boom hinge shaft and bearings for wear.
b. all parts are filling some of the oil, extending bearing life.
c. oil and the oil level of the hydraulic oil. Lifts the whole rises when this position should be higher than the bottom surface of the hydraulic did 40-50 mm. Hydraulic oil is a dark, sticky or gritty and other foreign matter, if found, should be replaced (32 # hydraulic oil).

Year-end maintenance
a. Check all hydraulic lines and fittings. Not damaged pipes, fittings not loose, all joints must be tightened.
b. Remove and disassemble drop valve plunger blowing with compressed air, and then into re-placement.
c. The hydraulic oil exhausted discarded, remove the connector and tighten the oil filter after cleared, cleaned with compressed air, and then back into the tank and piping connection is good.

How to make the tower crane is raised?

Tower crane is assembled from standard section made between standard section has a dedicated bayonet fixed to each other. If you are observant, you will find the top of the tower crane there is a height and size of the surrounding sections are larger than standard section of the climb, as the standard section wearing a hat, and with the increase of the festival will climb the tower crane and rise tower rises in fact the whole secret section on this climb.

Tower crane installation process is very complex. First tower needs a solid foundation, after the completion of the tower crane foundation, then the balance of the tower crane boom, boom, cab and other lifting body in the tower, thus completing the initial installation of the tower crane. With the increase of the building, will be higher than is necessary for the tower crane lifting machine plus a festival.

The original section of the climb there is a hydraulic jack, elevated tower crane is relying on top of this hydraulic jack lift. Each standard section of the tower crane has a fulcrum for supporting hydraulic jacks, hydraulic jacks can climb section standard section will rise against himself! Climbing tower crane is a section with increasing height increases when climbing festival height to the height of a standard section when it is vacated between two standard section on the bottom section of space to climb a standard section by repeating the process of jacking plus festival constantly increased.

Xinxiang female contractors want to jump to climb the tower crane 30 Mita 300,000 hard-earned money for the discussion

October 25 at 12:00 am, a woman about 40 years old to construction contractors for repeatedly unsuccessful party to discuss wages, under pressure, she reluctantly took 30 Mita hanging top, threaten buildings party to pay arrears of 30 ten thousand yuan wages.

12:12 the same day, the fire department received a public warning after Changyuan, quickly dispatched to the scene to rescue. The incident occurred at a construction site across from Changyuan Chinese medicine hospital, the fire brigade at the scene saw a middle-aged woman in the 30-meter-high tower crane, tower crane legs resting on the edge, waved, and threatened not to give money if you want to jump, very emotional.
Rapid fire brigade rescue cushions laid a good one, the police dispersed the crowd. The understanding that the woman was a labor contractor, was unsuccessful due to beg for hard-earned money on a climbing tower crane.
Police, fire brigade and other rescue personnel while the woman emotional stability, while putting pressure on the construction machinery site boss, bring cash as soon as possible. Around 14:00, the woman safely back to the ground.
After rescue workers persuasion and education, the woman realized his excesses, we must ensure calm after treatment.
This year, firefighters have been disposed of excessive Changyuan off towers or jumping events, the fire department to remind friends beg for salaries in the enterprise pay talks, discuss accident compensation costs, do not rush, do not use some extreme approach, the problem should be resolved through legal means.

High-rise buildings are built over, crane still available?

Our tower crane industry in the 1950s started, and now has become one of the fastest growing construction machinery industry.
Tower crane is a modern high-rise industrial and civil construction machinery essential for vertical transportation. It is a tower upright tower boom hinged cap, can do 360 ° rotation of the crane, construction crane for construction, transport and short distance vertical horizontal transport, components and materials will be lifted to any specified location, widely used in real estate, municipal engineering, industrial construction and other areas.
From the technical development of the tower crane, although the new product after another, new products in production efficiency, easy operation, easy maintenance and reliable operation aspects have improved, but there is no fundamental change in the tower crane technology.
At present, China is still to develop infrastructure facilities, construction boom, the rapid development of the joint tower crane industry, the development of demand for tower cranes in Africa is also amazing, in the financial crisis, Algeria, Angola, Egypt, does not seem to suffer the affect the demand rise, not fall, and this formed a great contrast, in Western Europe and other developed countries due to urbanization has been very scale, it slowed down the pace of urbanization, construction tower crane heavy equipment downturn caused by the weak. According to the "2010 China Construction Crane Market Analysis and Forecast Report" survey shows that in 2009 the performance of the European market demand big country feel despair, Russia, the Netherlands, there has been crash-like decline, like the European countries no longer need a crane products.
Therefore, when we are faced with urbanization American and European countries as well as South Korea, Japan walked the road, we could not help but ponder this question: When a country's urbanization more perfect time, the demand for tower crane is more or less the more of it? And we also imagine if the world's tallest building were built over, the crane still available?

So, in the face of international and domestic economic development policy, the pattern of domestic crane rental companies are quietly beginning to change, and some crane rental companies are experiencing from the coastal cities, small cities inland cities fought strategy, and try to turn their lease territory across the Yangtze River north and south; some crane rental companies and foreign companies are merging, try to turn their territory extends to the global crane rental ...... any one want to Everlasting crane rental companies must conform to China's economic development plan the enterprise the development strategy.