What are the working characteristics of bridge cranes
Although bridge cranes have different types, models and specifications, and general differences in appearance and structure, these bridge cranes all have the same feature, that is, the cyclic and intermittent working mode. A cycle of work tasks generally includes: according to the lifting and lowering of the pick-and-place machinery and equipment to make the raw materials produce horizontal displacement, then the reverse movement is started, and the original position or another position is returned to facilitate the next work task cycle. Reciprocating, there is generally a short intermittent between the cyclical repetition of two work tasks. It can be seen that when the bridge crane is working, the various mechanisms are often in a state of starting, operating, braking, and alternating forward and reverse motions. Today, the editor will tell you what are the working characteristics of bridge cranes?
① Hoisting machinery generally has a very large metal structure and a very complex mechanical structure design, which can realize one lifting, lowering or multiple horizontal actions. In the actual operation process, there are often multiple movements in different directions at the same time. , The technical difficulty is relatively large.
②There are various raw materials to be hoisted, and the load varies, ranging from dozens of tons to hundreds of thousands of tons in weight, ranging from tens of kilograms to light; from tens of meters to less than 1m in length; Irregularities, loose particles, hot melt, and flammable and explosive products make the lifting task more complicated and risky.
③Most of the crane machinery and equipment must operate in a relatively large area. Some of them are equipped with steel rails, steel wheels or tire-type crawlers. The movement area is large and the risk is greater.
④ There are many exposed moving parts, and they often come into direct contact with hoisting workers (such as hooks, ropes), and there are many safety risks.
⑤The actual operating area environment is relatively complicated. Factory and mining enterprises, container terminals, construction sites and other sites are all operating with lifting machinery and equipment. The actual operation will still encounter high temperature, high pressure, flammable, explosive, and power transmission lines. , Strong magnetic field and other security risks, these unfavorable factors will bring a very big threat to people and machinery and equipment.
⑥ Practical operations often require people to cooperate with each other, and there is generally a relatively large degree of difficulty. The regulations require actual operation staff and command staff to be proficient in mutual cooperation, cooperative work, and mutual care. Actual operation staff should have emergency response on the spot. The professional ability of the situation.
The above is the whole content of "What are the working characteristics of bridge cranes?" I hope everyone can understand.
