In the news, from time to time, such accidents are reported. After the accident of a large truck and a small car at the same time, accidents in the car are all serious. Most of the time, if there is a rollover, cars are often pressed into "carrots" by large trucks. Faced with huge trucks, drivers are not particularly skilful novice drivers. Their choice is to hide. In fact, after encountering a large truck, it is not so terrible. Once you have mastered the driving skills, you can pass it safely.
First, driving at night, but also pay attention to beware of trucks.
Special attention should be paid to driving at night. Trucks are always exposed to the wind in the outside world, and it is likely that maintenance is not in place. As a result, the condition of the vehicle is very poor. Lights are often missing or black smoke is a common occurrence. Therefore, when driving at night, it is best to choose to drive in the overtaking lane. In the event of sudden smoke, it should be decelerated immediately to avoid the risk of rear-end collision.
Second, in and out of the tunnel, we must slow down the headlights.
The driving car must slow down when entering or exiting the tunnel, and it is necessary to turn on the headlights in advance, especially when following the truck. Because the light outside the hole is strong, the moment you enter the tunnel, the human eye will have a dark adaptation for a short time, and you will see almost nothing. When you get out of the tunnel, because you are accustomed to the darkness and see the sun, your eyes will become dizzy. There will be a short period of incompatibility and you will not see things clearly. If the truck is repaired in the cave and suddenly decelerated, turning the lights on and decelerating will help the car brake.
Third, the correct way to overtake
First, drive away from a large truck about 100 meters away, observe the road conditions in front of you, make sure that the road ahead is in good condition and the line of sight is good. Use the overtaking turn signal, whistle and strobe lights to observe the direction of the truck. If the truck does not take the road and there is no tendency to shake left and right, then increase the throttle to quickly exceed it. Don't immediately go to the lane after you pass. It's best to drive back to the normal lane with a large truck about 500 meters away. At the same time in the entire operation, we must pay attention to grip the steering wheel, remember not to shake left and right, so bold and small heart.
Editor's Note: Due to the increase in the speed of the domestic large trucks, the deceleration process is very troublesome, so once the big trucks speed up or down, there will be no change of ideas. Therefore, if a newbie wants to overtake, he must pay attention to the large truck next to it.
Sharpening is an indispensable preparation procedure before drawing die. According to the introduction, the rotary forging machine has been used in the coarse wire rolling abroad. It is also useful for electric rolling, that is, the two ends of the wire are clamped with electric pliers, and then the wire is stretched into a point and broken. At present, all the domestic use of rolling rod tip, mainly the reciprocating rotary old rolling machine and eccentric rolling machine cycle rotation. Another lever manual reciprocating small tip rolling machine, specially for 1 mm below the use of fine steel wire.
Fold and edit the structure of this section sharpening machine
The reciprocating rotary tip rolling machine is used for decades of old equipment, simple structure, suitable for small factories and production of low carbon steel wire.
This equipment is composed of three parts: transmission, frame and rolling stick. It is reduced by belt wheel and gear, and the big gear rotates about 60 times per minute. A short eccentric shaft is attached to the side of the big gear, which makes the rolling stick rotate around 50° through the arm and connecting rod. If the position of the arm and the connecting rod is changed, the Angle of the rolling rod can be changed.
This old fashioned bar is 100~120 mm in diameter and has 8~16 slots. According to the diameter of the wire, slot from large to small in order. Slot compression rate is: coarse steel wire about 20%, medium and fine specification about 15%. The slot is concentric and symmetrical with the outer circle.
The working principle of the sharpening machine is shown in the figure below.
sharpening machine,bar pointing machine,sharpening machinery,tip rolling machine
Jiangyin Wanyi Machinery CO.,Ltd , https://www.wydrawmachine.com