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水泥搅拌车为什么边走边搅拌?

来源:http://www.sdzkjf.cn/ 日期:2021-06-04 发布人:admin
混凝土罐车的原理和混凝土搅拌桶一样,只不过是用车子把搅拌桶拉着走,边走边搅拌而已。到了目的地就可以把混凝土放下来!正常情况下罐车里面的混凝土是不会凝结的,因为车辆无论是行驶还是停止状态,只要搅罐内有混凝土存在,搅罐必须时刻维持低速转动。运输时滚筒转速每分钟在4~8转左右。保持转动有几个好处:只要保证混凝土不离析、保混凝土坍塌度!其次是搅拌功能,使凝土更均匀!
The principle of concrete tank truck is the same as that of concrete mixing bucket, but it is just pulling the mixing bucket with the truck and mixing while walking. When you get to the destination, you can put down the concrete! Under normal circumstances, the concrete in the tank car will not set, because whether the vehicle is running or stopped, as long as there is concrete in the mixing tank, the mixing tank must always maintain low speed rotation. During transportation, the drum speed is about 4 ~ 8 revolutions per minute. There are several advantages to keep rotating: as long as the concrete is not separated, the concrete collapse degree is guaranteed! Secondly, the mixing function makes the concrete more uniform!
混凝土罐车和普通汽车的不同之处就在于液压传动系统,因为混凝土罐需要额外动力驱动旋转,这个就是液压传动系统的功劳。动力源自变速箱上面的取力器,取力器驱动液压油泵,液压油泵通过分配器(阀组)来驱动液压马达旋转,液压马达通过减速系统驱动混凝土罐旋转。通过分配器改变液压油的方向来改变滚筒旋转方向,实现搅拌和放料。
自上料水泥搅拌车
The difference between the concrete tank car and the ordinary car lies in the hydraulic transmission system, because the concrete tank needs additional power to drive the rotation, which is the credit of the hydraulic transmission system. The power comes from the power take-off on the gearbox. The power take-off drives the hydraulic oil pump. The hydraulic oil pump drives the hydraulic motor to rotate through the distributor (valve group). The hydraulic motor drives the concrete tank to rotate through the deceleration system. Through the distributor to change the direction of the hydraulic oil to change the rotation direction of the drum, realize the mixing and discharging.
虽然旋转可以延长混凝土初凝的时间,但是这个时间也不是可以无限延长的!混凝土罐的转速每分钟在4-8转的时候混凝土初凝时间可以保持在3-5个小时左右,当然和天气温度、混凝土配合比有一定的关系,如果发生堵车可以适当提高转速。天气温度过高初凝事件缩短也可以适量补水,但是施工方都有严格规定:途中禁止加水!会影响混凝土质量,降低强度等。
Although the rotation can extend the initial setting time of concrete, but this time can not be indefinitely extended! When the rotation speed of concrete tank is 4-8 revolutions per minute, the initial setting time of concrete can be maintained at about 3-5 hours. Of course, it has a certain relationship with weather temperature and concrete mix proportion. In case of traffic jam, the rotation speed can be appropriately increased. If the weather temperature is too high, the initial setting event can be shortened, and the water can be replenished appropriately, but the construction party has strict regulations: no water on the way! It will affect the quality of concrete and reduce the strength.
而意外总是会发生的:罐车也会因为故障或者事故不能及时的清罐,那么罐内混凝土就会凝固!也就是所说的的:“闷罐”!这个时候只能人工清理,别无他法!而且清理耗时耗力!费用也在万元左右!所以有时候就能看到路边的罐车在扔混凝土,用不完的要及时扔掉,以免在车内凝固。
Accidents always happen: the tank car can't clear the tank in time because of faults or accidents, so the concrete in the tank will solidify! That is to say: "stuffy pot"! This time can only be manually cleaned, there is no other way! And it takes time and effort to clean up! The cost is about ten thousand yuan! So sometimes you can see the roadside tanker throwing concrete, and you should throw away the unused ones in time to avoid solidification in the car.
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