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小型混凝土搅拌车如何处理压力不足的情况?

来源:http://www.zkhntjbc.com/ 日期:2020-09-25
概述:在一定的压力之下,小型混凝土搅拌车有了压力的作用,会产生一定的动力,开始了它的运行。这样上面的混凝土可以得到更充分地搅拌。在压力不足的前提下可能对搅拌车的效率有影响。如何
在一定的压力之下,小型混凝土搅拌车有了压力的作用,会产生一定的动力,开始了它的运行。这样上面的混凝土可以得到更充分地搅拌。在压力不足的前提下可能对搅拌车的效率有影响。如何处理压力不足的情况?
Under a certain pressure, the small concrete mixer has the effect of pressure, which will produce certain power and start its operation. In this way, the concrete above can be mixed more fully. Under the premise of insufficient pressure, the efficiency of mixer may be affected. How to deal with the lack of pressure?
1、查看小型混凝土搅拌车液压泵是否能输出液压油。如果是新的液压泵,无液压油输出,可能是泵体有铸造缺陷(缩孔、砂眼等),使吸油腔和压油腔相通,失去压油能力,应及时找厂家更换。若不是新的液压泵,无液压油输出,可能是泵的转向不对,零件磨损严重或损坏,及时更换。
1. Check whether the hydraulic pump of small concrete mixer can output hydraulic oil. If it is a new hydraulic pump without hydraulic oil output, it may be that the pump body has casting defects (shrinkage cavity, sand hole, etc.), so that the oil suction chamber and the pressure oil chamber are connected, and the oil pressure capacity is lost, it should be replaced by the manufacturer in time. If it is not a new hydraulic pump and there is no hydraulic oil output, it may be that the steering direction of the pump is not correct and the parts are seriously worn or damaged. Replace them in time.
2、若小型混凝土搅拌车液压泵有油液输出,查看溢流阀工作是否正常。若不正常,则可能是压力油路中的某个阀有污物或其他原因卡住,处于回油位置,致使压力油路与溢流回路短路,也可能是管接头松脱,或处于压力油路中的某些阀泄漏严重,或液压缸、液压马达的密封损坏,严重泄漏。排除方法是拆开有关阀进行清洗,检查密封间隙的大小及各种密封装置,密封装置损坏应更换。
2. If the hydraulic pump of small concrete mixer has oil output, check whether the relief valve works normally. If it is abnormal, it may be that a valve in the pressure oil circuit is stuck due to dirt or other reasons, and it is in the oil return position, resulting in a short circuit between the pressure oil circuit and the overflow circuit, or the loose pipe joint, or serious leakage of some valves in the pressure oil circuit, or the seal damage of the hydraulic cylinder and hydraulic horse. The elimination method is to remove the relevant valve for cleaning, check the size of sealing clearance and various sealing devices, and replace the sealing device if it is damaged.
3、若水泥小型混凝土搅拌车的液压泵输出流量随压力升高而显着减小,且压力达不到规定值,则是由于液压泵磨损后间隙增大所致。排除方法是测定液压泵的容积效率,即可确定该泵是否能继续使用,对磨损严重的零件,应进行修配或更换。
3. If the output flow of the hydraulic pump of the small cement concrete mixer truck decreases significantly with the increase of the pressure, and the pressure can not reach the specified value, it is due to the increase of the clearance after the hydraulic pump is worn. The elimination method is to measure the volumetric efficiency of the hydraulic pump, so as to determine whether the pump can continue to be used. The parts with serious wear should be repaired or replaced.
4、小型混凝土搅拌车的液压系统能建立正常压力,而某些管路或液压缸中无压力,可能是由于管路、小孔或节流阀、换向阀等部位堵塞。此时应逐段检查压力和有无油液通过,找出原因,加以排除。
4. The hydraulic system of small concrete mixer can establish normal pressure, but there is no pressure in some pipelines or hydraulic cylinders, which may be due to blockage of pipeline, small hole or throttle valve, reversing valve, etc. At this time, check the pressure and whether there is oil passing through section by section, find out the reason and eliminate it.
根据小型混凝土搅拌车压力不足的原因,应该及时更换一些配件,做好调整。将压力恢复到正常情况。按照以上方法进行操作,能够适当提高搅拌车的压力,及时压力不足的问题。
According to the reasons of insufficient pressure of small concrete mixer truck, some accessories should be replaced in time and adjusted well. Return the pressure to normal. According to the above method, the pressure of mixer can be increased properly and the problem of insufficient pressure can be solved in time.

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