Do loaders still need to stack for ore screening
red light is short and life is long. In order to better publicize traffic safety regulations and enhance students' awareness of traffic safety, the Ministry of ecation will set the theme of safety ecation day for primary and secondary school students on March 28 this year as "enhancing traffic safety awareness and improving self-protection ability". In order to better publicize the knowledge of traffic safety and cherish our lives, the school proposes to all teachers and students:
1. We should seriously study the laws and regulations of traffic safety, abide by the traffic rules, strengthen the safety awareness and establish the civilized and public morality of traffic safety
2. When we walk on the road where people and cars come and go, please always keep a clear mind and don't play on the road
3. When we are on the road, we should be more modest and patient. We should not run the red light and walk on the crosswalk. We should never cross the road for a short time< Students under 12 years old are strictly prohibited to ride bicycles. Be sure to line up when you come home from school
remember a story. Several scholars and an old man were on the same boat. When scholars asked the old man whether he knew what philosophy was, he shook his head. Scholars sigh one after another: you have lost half of your life. At this time, a huge wave came, the boat was overturned, the old man asked: "can you swim?" The scholars unanimously said no. The old man sighed and said, "then you will lose all your lives."
although this is only a story, the philosophy contained in it is thought-provoking. Disasters happen to everyone, regardless of the rich and poor, regardless of gender and age. Children, students, workers, intellectuals, people's public servants... No matter they are babbling, or they are well-off, or they are young and weak, or they are strong and strong, if they lack e vigilance and do not know the basic safety knowledge, then once the danger comes, the misfortune that they may escape will happen unexpectedly and objectively
to abide by rules and regulations is to respect life and self. When we can do all this, our society will be a step closer to the other side of civilization. It is our ty and responsibility to pay attention to traffic safety. Let's join hands to take care of the flower of civilization. Let's keep away from the pain and cherish each other's lives
today is the 10th National Safety Ecation Day for primary and secondary school students. We hope this day can arouse students' attention to traffic safety again. The earth wakes up and the spring breeze is green. We should sow the seeds of peace into our hearts. When it germinates and blossoms, and grows into a towering tree, we will reap more peace, happiness and peace
when people give way to the car, they give way to warmth and order; Car let people, let a piece of safety, let a piece of understanding. In this world, only when people and cars yield to each other, can we avoid traffic accidents as much as possible, rece the number of deaths and cherish precious lives
life is unique and precious. The world is wonderful because of life. Do you cherish your life? If you want to protect your life, please obey the traffic rules and maintain the traffic order
cherish life and travel safely
we have to go out every day, go to school, go to work, buy vegetables. When we walk on the road, traffic safety is very important. Some people ask, "is it OK not to wear a seat belt on a hot day?"“ Why don't melon farm cars get on the highway
explanation of relevant personnel: do you have to wear seat belts at high speed in hot weather? Some consulting drivers say that it's hotter to fasten the seat belt at high speed in hot weather. Can you not do it? According to statistics, after a traffic accident, if front row drivers and passengers wear seat belts, 70% of the casualties can be effectively reced. The safety belt is specially designed to protect the life of the front seat passengers from injury after the vehicle accident, which can effectively protect the front seat passengers from secondary collision. At present, the weather is hot. Some people are not wearing their seat belts when they are driving because they want to be cool. In fact, they are not responsible for their own lives
why can't agricultural vehicles sell melons get on the highway? According to Article 4 of the highway traffic management measures, pedestrians, non motor vehicles, tractors, agricultural transport vehicles, battery vehicles, wheeled special mechanical vehicles, full trailer tractors and motor vehicles with the designed maximum speed of less than 70 km / h are not allowed to enter the highway. Because of the low safety factor and poor protective measures, agricultural transport vehicles and two wheeled motorcycles can easily lead to malignant traffic accidents, so they can't drive on expressways
children are the future successors of the society. Whether they can grow up healthily is related to the rise and fall of the nation and the progress of the society. To ecate people, we should not only carry out intellectual ecation, but also carry out moral and discipline ecation. The work of traffic safety publicity and ecation starts from the children, so that the students can accept the ecation of traffic safety knowledge from childhood, reach the goal of self-ecation, self-management, and develop the good habit of consciously abiding by the traffic laws and regulations, which is the great plan of a century to achieve the good order of a generation and a society
at the beginning of the new semester, in order to ensure the road traffic safety of school teachers and students, and maintain the order of teaching and life on campus, on the one hand, we should strengthen the traffic safety ecation and management on campus, on the other hand, we should strengthen the construction of "green channel" and the improvement of traffic environment around the school. In order to further enhance the primary and secondary school students' awareness of traffic safety, improve their self-protection ability, and curb the occurrence of traffic accidents. It is understood that every year, tens of thousands of innocent children and teenagers die because of various accidents, and traffic casualties caused by lack of traffic awareness and weakness account for a large proportion of primary and secondary school students' casualties. The traffic safety of primary and secondary school students is related to the happiness of thousands of families, which needs the joint responsibility of traffic police, schools, families and society
according to traffic laws and regulations, there are two basic conditions for driving safety: one is that vehicles without license can't go on the road; the other is that people who are over 18 years old and have obtained relevant driving license are qualified to drive. However, when the traffic police were on patrol, they found that a considerable number of vehicles had different "three certificates", and some students who did not meet the legal age also rode on the street. It seems that students' traffic safety ecation has a long way to go. How can primary and secondary school students go to school safely and go home happily
I suggest that regular or irregular police or teacher counsellors should be selected to maintain the traffic order at the school entrance or intersection with complex traffic, so as to ensure the safety and smoothness of the "green channel". At the same time, the traffic safety ecation and management should be included in the school management. Every primary and secondary school must pay attention to the work according to the acceptance evaluation standards, and the traffic safety ecation should be included in the quality ecation supervision and evaluation. It is suggested that primary school students should implement the methods of "platoon" and "little yellow hat" when they go to and from school, arrange students in the same way and in the same direction into teams, and be escorted across the road by teachers, so as to ensure the safety of students' walking; When organizing students to go out for collective activities or spring and autumn outings, we should strictly standardize the examination and approval proceres, check the examination and approval, and resolutely stop sick cars and overloaded cars from transporting students, so as to ensure the traffic safety of school teachers and students. At the same time, we have strengthened the renovation of the school and its surrounding traffic environment, and resolutely banned illegal behaviors such as setting up stalls at the gate of the campus and occupying roads for the city, which hinder the passage of school teachers and students. For the majority of teachers and students to create a good traffic environment
having said so much, I think you should know the importance of traffic safety. Then, please "protect your life, refuse to violate rules" and cherish your own life
God is fair and stingy. He only gives everyone one life, so we must cherish it. In our life, traffic safety is closely related to us, just like our friends. Stay by our side day and night, ecate us and admonish us
life is precious. There is only one life in a person's life. We should cherish life. Paying attention to traffic safety is also a part of cherishing life. Now there are too many people who have died in traffic accidents. Aren't they wronged? I once heard of such a traffic accident: it was a sunny day, my mother and I were walking on Fangta street. All of a sudden, a car "Shua" passed by. I fixed my eyes on it. It turned out that a boy was riding a bicycle. He didn't know where he was going. Because he was riding too fast, he almost ran into a pedestrian on the road. Pedestrians advised him not to ride so fast, but he did not listen to the advice, continued to ride his "flying car", his face from time to time showing proud and hasty look. I think: this boy may have something urgent! How else could he have ridden so fast? But this is very likely to cause traffic accidents. As expected. My mother and I were at a turning point. Seeing many people around the middle of the road, we went over with curiosity“ "Ah," I exclaimed. Isn't this the boy who was riding the "flying car" just now? Why was he hit by the car? I heard onlookers saying, "Oh! Poor child! Just now I bumped into a big truck and took off with people and cars. "“ If the child rides a little slower, if the driver drives a little slower, if... "However, no amount of" if "can reopen the withered bud. The boy's parents don't know how much they have worried about the child who has fallen into a pool of blood, but now they can only watch their own child leave, which makes their parents very sad...
now the city is busy with traffic, and such tragic traffic accidents are like stars in China, because the death and injury rate of traffic accidents in China ranks first in the world. Therefore, whether the traffic police are present or not, we should consciously abide by the traffic regulations. For example: cross the road to see the signal lights, red stop, green line, to take the crosswalk, not over the traffic barrier; Children under 12 years old are not allowed to ride bicycles on the road; Can't play and play in groups on the road
1. If the forklift has no mechanical transmission, there will be a little noise when shifting. The driver will slow down and step on the brake until the car stops
2. If the forklift is not inorganic transmission, it is necessary to adjust the clutch properly. When starting the engine, the gear lever needs to be in neutral position, and then shift
< H2 > extended data
loader is a kind of earthwork construction machinery widely used in highway, railway, construction, hydropower, port, mine and other construction projects. It can also be used for bulldozing, lifting and loading and unloading of other materials such as wood by changing different auxiliary working devices
in road construction, especially in high-grade highway construction, loaders are used for filling and digging of subgrade engineering, aggregate and loading of asphalt mixture and cement concrete yard, etc. because loaders have the advantages of fast operation speed, high efficiency, good mobility and light operation, they have become one of the main types of earthwork construction in engineering construction
after nearly 50 years of development, especially the super high speed development in the past 10 years, China's loader instry has greatly improved its proct technology quality, and the gap with the world's advanced level has become smaller and smaller. In 2011, China's loader instry sold 192100 loaders, a year-on-year increase of 14.81%< br />
The air exhaust steps of loader brake are as follows:
1. Step on the brake
2. Then loosen the bleeder wire on the brake caliper, tighten it and repeat several times
loader is a kind of earthwork construction machinery which is widely used in highway, railway, construction, hydropower, port, mine and other construction projects. It is mainly used for shoveling soil, sand, lime, coal and other bulk materials, and can also be used for light shoveling of ore and hard soil. It can also be used for bulldozing, lifting and loading and unloading of other materials such as wood. In road construction, especially in high-grade highway construction, loaders are used for filling and digging of subgrade engineering, aggregate and loading of asphalt mixture and cement concrete yard. In addition, it can also push soil, scrape the ground and pull other machinery. Because the loader has the advantages of fast operation speed, high efficiency, good mobility, light operation and so on, it has become one of the main types of machine in earthwork construction
components:
including engine, torque converter, gearbox, front and rear drive axle, referred to as four parts
1. Engine
2. There are three pumps on the torque converter, working pump (supply lifting and tipping pressure oil), steering pump (supply steering pressure oil), transmission pump, also known as walking pump (supply torque converter and transmission pressure oil), Some types of steering pump are also equipped with pilot pump (supply pilot pressure oil of control valve)
3. Working hydraulic oil circuit, hydraulic oil tank, working pump, multi way valve, lifting cylinder and tipping cylinder
4. Walking oil circuit: transmission oil pan oil, walking pump, one way into torque converter, one way into gear valve, transmission clutch
5. Drive: transmission shaft, main differential, Wheel recer
6. Steering oil circuit: oil tank, steering pump, flow stabilizing valve (or priority valve), steering gear and steering cylinder
7. There are two types of transmission: one (planetary type) and one (fixed shaft type)