概述：攪拌車是用來運送建筑用的混凝土卡車;由于它的外形，也常被稱為田螺車、橄欖車。Mixer truck is a truck used to transport concre
Mixer truck is a truck used to transport concrete for construction; Because of its shape, it is often called snail car and olive car.
Such trucks are equipped with cylindrical mixing drums to carry the mixed concrete. During transportation, the mixing drum will always rotate to ensure that the transported concrete will not solidify.
After the concrete is transported, the interior of the mixing drum is usually washed with water to prevent the residual concrete from hardening and occupying space, so as to reduce the volume of the mixing drum.
The fully automatic feeding mixer has multi-purpose, advanced performance, compact structure and good sealing of the mixing drum, and a fire baffle is set at the feed inlet to prevent the reverse string of water mist.
The mixer track must be well known to all. Mixer truck is used in many places, and mixer truck also plays a very important role. When using small mixer tracks, such as mixer tracks, corresponding problems always occur. Some small mixer drivers report that buying the same mixer at the same time with friends will cause engine problems after using the car for a period of time, but the engine in friends' cars is very good What happened? What happened? Why did the mixer engine break so quickly? Let's see if it's not used properly or if there's a problem with the vehicle itself.
1. Improper use of maintenance data of small mixer
In the maintenance of small mixer truck, the failure to select maintenance data scientifically is an important reason for premature damage of parts. For example, the width of the contact surface between the valve and the valve seat is specified as 1.2.2 mm for the inlet valve and 18.104.22.168 mm for the exhaust valve, but in actual maintenance, the width is greater than the larger width. This needs to be done. The width is very narrow. Many people say this is good, and usually choose the upper limit as the upper limit or close to the upper limit. The width of the valve working surface of the newly repaired vehicle is close to its service limit, so this is the upper limit. Another example is the valve foot clearance. Vehicles are usually specified as 0.2-0.25 mm. However, the maintenance adjustment considers that the clearance is larger than the smaller clearance. Therefore, if the gap exceeds the upper limit, the gap is actually too large, which not only reduces the engine power, but also causes initial damage due to impact.
2. Crush the valve of the small mixer smoothly
In order to maintain a small mixer trajectory, if the valve has ablation, pits or dents, it usually needs to be polished with a polishing grinder. In the process of operation, we should pay attention to four problems. First, check the valve head and stem. Concentric circles, otherwise you need to fix them first. Next, assuming you can polish the perfect cone, you need to make the smooth car as small as possible. Next, you need to polish the surface. The fourth aspect should be raised as much as possible to smooth the concave end of the valve stem.