During this Spring Festival holiday, I have always been in the mood of traveling when I am idle at home, watching friends, watching news and brushing Weibo. My mobile phone screen is almost bald. At this time, a few lines of words suddenly caught my eye, suddenly let a person shine at the moment:
Click on the link to see, it is actually a live broadcast of Wuhan Huoshenshan Hospital site. It's a live broadcast, but it's actually the real-time picture and live sound of the surveillance camera. It's not unusual to look at the monitoring screen, but I didn't expect this kind of on-site monitoring to reach tens of millions of online viewers casually.
After watching it for a few minutes, I found that this is not only a simple live broadcast, but also more interesting things. The comment area is more lively than the temple fair, and terms such as "sending the ashes", "sending the emperor", "Guangxu emperor" and "welding the martial arts emperor" frequently appear. Is this a new Twenty-four History?
Later, after consulting the hot search, it was found that these were nicknames given by the supervisor to various mechanical facilities on the construction site, and a fan group was set up specifically for forklift excavators! Originally, I wanted to say that it seems that it really hurts for everyone to be idle at home, and then think about themselves. In fact, they are also attracted by these names. Are these construction machinery incarnated into demons?
So, I decided to "kick" these construction machinery cars superficially and discuss them with you. However, I must make it clear that I don't know much about construction machinery. If there are any inaccuracies, please communicate with us.
Excavator tiantuan
Rhubarb, yellow, yellow; Little orange, little green and little blue. ...
Summarized the names given by the supervisor, basically referring to excavators. To tell the truth, I have never driven an excavator. Driving an excavator requires a construction certificate of construction machinery. Where can I get this certificate? I'm not sure about other places, but I guess there must be some in Shandong.
The names given by supervisors are simple and direct, and excavators are distinguished by size and color. Yes, according to different construction needs, excavators are also divided into different sizes and models, which are similar to the cars we drive, but they are not classified according to the levels of compact, intermediate and medium. But classified according to the self-weight of the excavator. Usually, the self-weight is less than 6 tons for mini excavators, 6- 15 tons for small excavators, 15-30 tons for medium excavators and 30- 150 tons for large excavators. As for the recently popular Lego Liebherr R9800, it has 800 tons and belongs to a super-large excavator.
Similar to identifying the displacement by the tail sign, the excavator can identify its tonnage by the model on the fuselage. For example, this Komatsu PC200 excavator on the construction site of Vulcan Mountain, which means 20 tons, belongs to a medium-sized excavator. So is Hitachi's ZAXIS200, which represents 20 tons.
In addition to Komatsu, there are many other brands of excavators on the construction site, and the brands of excavators can be roughly identified by the body color. For example, Xiaolv is basically Zoomlion, Xiaolan is basically Hitachi, and Xiaolan should be Shengang. As for Xiao Huang, it can be SANY Heavy Industries, Liugong, KES and Komatsu. However, apart from the big LOGO on the fuselage, how to distinguish their specific models? For me, it's like asking someone who is not familiar with cars to distinguish sagitar, LaVida and Bora. It's really hard.
The vast majority of excavators use crawler-type walking mode, and of course a few use wheeled mode. There is a simple reason. Generally, the road surface of the construction site is muddy and uneven, and crawler is of course the best way. However, unlike automobile tires, the wider the tread, the better the grip effect. Excavators use the narrowest track possible and use toothed track shoes to avoid slipping.
Although the excavator is not fast, it is much more flexible than a car, and once it is hung, it can't be compared with any car. For example, the following self-reliance operation once gave me an idea: Do you want to go to that school?
There are two kinds of "sending the emperor"
The most conspicuous machines on the construction site of Vulcan Mountain must be the giraffes of those directors, which are red and green, and are called "Send the Emperor". There are two kinds of machines that sent Emperor Gaozong here, and their functions are completely different. One is called truck crane (commonly known as big crane), and the other is called concrete pump truck.
The truck crane uses the truck as the base and telescopic arm. It is a sharp weapon to transport materials to high-rise buildings on the site by putting the boom away when moving and extending the long arm during construction. Truck cranes are generally classified according to rated lifting capacity and boom length. Of course, the bigger the lifting weight, the longer the boom length, the bigger the chassis and the more axles are needed, just like a truck.
For example, if the lifting capacity of a light crane is 8 tons and the boom length is about 25 meters, a car with a two-axle chassis can be used. If the lifting capacity reaches100t and the boom length exceeds 60m, use a car with a 5-axle chassis.
The advantages of truck crane are obvious, with good maneuverability and convenient transfer. However, the disadvantage is that the support legs must be upright when working, which is not suitable for heavy-duty driving or working in soft or muddy fields. However, we should also pay attention to the rotation angle of the turntable. If it exceeds the rotation range angle of the turntable and is overloaded, it is easier to roll over.
Another kind of "sending Emperor Gaozong" is a concrete pump truck, which is responsible for pouring concrete materials into the construction site. It was also transformed from a truck yard. Similar to truck cranes, trolleys with different loads and axles are selected according to different boom lengths.
The boom of concrete pump truck is generally more than 40 meters. Of course, the higher the height to be watered, the higher the derrick is needed. Zoomlion built a pump truck that set a Guinness World Record, and the boom length reached 10 1. 18m. It is also the only pump truck in the world that adopts 7-axle chassis and 7-section boom and is put into use. Then the question is, isn't such a long boom inherently inferior in weight?
Unexpectedly, not all products made by Zoomlion are steel giants. The longest pump truck in the world actually uses a carbon fiber boom! So what I care about is, how much is such a carbon fiber pump truck with a length of more than 100 meters worth?
How big is the weight of "Dourgen"?
I used to think that the drum of the drum was a strong iron knot, and I thought, how heavy is this? ! If it is solid, the weight must be heavy, the driving speed will be slow and the efficiency will be low. In fact, the drum of the drum is not a solid cylinder, and its structure is very complicated.
Inside the drum is a set of eccentric structure, which rotates by eccentric force to produce vibration. Because the roller's eccentricity is constantly changing, when the eccentricity is upward, the roller will become static pressure mode, and when the eccentricity is downward, it will form a great force with the ground, which will flatten the road surface. The weight produced by this centrifugal force is much greater than the usual gravity.
So there must be many people who mistake Dourgen for a heavyweight iron knot. It's not light, but it's not that heavy.
For example, old drivers may not be able to tame fork sauce.
Small forklifts are busy shuttling around the construction site, which makes many supervisors have a flood of maternal love, but have you found that forklifts turn by the rear wheels? Why can't a forklift turn its front wheels like a car?
If the fork sauce on the construction site of Vulcan Mountain is replaced by front wheel steering, it is estimated that the hospital will definitely not be finished today. The reason is that forklifts are the means of transportation for warehouses and freight yards. In these places with small space, frequent steering and small turning radius, rear wheel steering is obviously better than front wheel steering.
Moreover, the forklift truck uses the front of the car body to carry goods, and the rear wheel is the counterweight area. Think about the lever principle. The front wheel is the main support point of the center of gravity. If the front wheel is used for steering, it needs more power and the body is unstable. Just like riding a bicycle, it is difficult to ride steadily when turning with a basket in front and heavy items.
Therefore, the front wheel of the car is small and the load of the rear wheel of the forklift is small. According to the load of the front and rear axles, decide whether to use the front wheels or the rear wheels for steering. Of course, at present, some cars use rear wheel steering technology, but the rotation angle is very small, which only plays an auxiliary role.
The muck truck seems to be less annoying.
After continuous excavation, hundreds of vehicles carrying muck have become the busiest figure on the construction site. In the past, when I saw a muck truck on the road, I would hide far away, drop soil while running, and smoke billowed when exhausting. These trucks have always been the chief culprit in destroying the urban environment.
However, in the construction site of Huoshenshan Hospital, in addition to the muck trucks produced by SAIC Hongyan, China Heavy Duty Truck, Futian Ou Man and Dongfeng Liu Qi, we also saw the environmentally friendly intelligent muck trucks produced by United Truck Company.
This car uses liquefied natural gas as fuel, which can reduce carbon monoxide emissions by 90% and operating costs by 30% compared with traditional muck trucks. Moreover, this car is also equipped with Beidou /GPS two information transmission modes to provide 24-hour uninterrupted monitoring information for the muck transportation supervision department. Team managers can use the remote positioning system to monitor and alarm the speeding, unsealed trunk, wrong way and emergencies of transport vehicles in real time. By installing on-board monitoring equipment, the vehicle status information can be comprehensively monitored, which can provide status information for drivers and passengers in real time and warn drivers and passengers when overloading, speeding and fatigue driving occur.
So, it has a lovely new name-Little Green on the construction site of Vulcan Mountain Hospital.
Whisper "Ernie sauce"
The brains of executives are hard to figure out. An ordinary concrete mixer actually got the most popular name in the whole network-mud spit sauce.
I don't think the name of mud-spitting sauce sounds corny, but it should be regarded as the most "melodramatic" in the whole construction site. Because concrete will solidify in a short time, which is corrosive to steel, it is necessary to thoroughly clean the big white cylinder and water inlet and outlet after each use: wash the inlet with water before loading, fill the washing water tank with water when loading, wash the discharge tank after unloading, add water to the storage tank, keep the storage tank rotating slowly, turn it upside down before loading next time, and discharge sewage ..........................................................................
Usually, spitting mud sauce is also very common. Futian Ou Man, faw liberation, SAIC Hongyan, Shaanxi Automobile Heavy Truck, Sany Heavy Industry and Zoomlion all have different styles.
Of course, there are many names on the website, such as:
Welding of Emperor Wu of Han Dynasty-Welding Working Group
Guangwudi-high power illumination
Emperor Guangxu-lighting at night
Wu Sangui—Three osmanthus trees are blocking the view.
And:
Bai Juyi-whiteboard room (whiteboard room, living, easy to restore)
Huo Qubing-ambulance
All this comes from a group of people known as Emperor Xianfeng (idle mad emperor)-that is, tens of millions of supervising netizens across the country. However, I am thinking that it is not so much an invigilator as a blessing. Here, I would like to pay tribute to the builders, medical workers and all the workers working in the front line of the epidemic! You have worked hard!
May the epidemic recede as soon as possible, may the patients recover as soon as possible, and may everyone go out of their homes as soon as possible and return to a seemingly ordinary life.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.