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自动上料搅拌车损坏后怎么维修?

作者:http://www.zkzsljbc.com 时间:2021-04-26

1、自动上料搅拌车离合器损坏的原因动力换挡变速器离合器接合时,液压油的压力克服弹簧力压紧摩擦片。随着液压油压力的升高,摩擦片与金属盘接触并逐渐压紧,使离合器将飞轮动力平稳地传递到变速器输人轴。每次换挡时,摩擦片都要与钢片发生摩擦,产生的热量由冷却液散发出去。
1. When the clutch of the power shift transmission is engaged, the pressure of the hydraulic oil overcomes the spring force to press the friction plate tightly. With the increase of hydraulic oil pressure, the friction plate contacts with the metal plate and gradually compresses, so that the clutch smoothly transmits the flywheel power to the transmission input shaft. Every shift, friction plate and steel plate friction, heat generated by the coolant out.
当摩擦片及钢片变薄时,为了使它们充分接合就需要更多的液压油,发动机须进一步加速,摩擦片在钢片上的打滑时间也随之延长,由此产生的摩擦热量也会更多,促使液压油的温度增加,当达到足以改变变速器中密封件性能的温度时,变速器就会产生内泄。
When the friction plate and steel plate become thinner, in order to make them fully joint, more hydraulic oil is needed. The engine must be further accelerated, and the sliding time of the friction plate on the steel plate will also be prolonged, resulting in more friction heat, which will increase the temperature of the hydraulic oil. When the temperature is enough to change the performance of the seal in the transmission, the transmission will produce internal leakage.
而内泄又从两个方面继续引起热量的增加:高压油经损坏的密封处泄漏,使油温继续升高;由于漏油,液压泵势必要输送更多的油液来保证接合离合器时所需的压力,使离合器充分地接合,这也要求发动机继续加速,使液压泵产生更大的流量。如此恶性循环,必将导致离合器过热或烧损,直至完全失效。
自上料搅拌车
The internal leakage causes the increase of heat from two aspects: the leakage of high-pressure oil through the damaged seal makes the oil temperature continue to rise; Due to the oil leakage, the hydraulic pump will need to deliver more oil to ensure the pressure required to engage the clutch, so that the clutch can be fully engaged, which also requires the engine to continue to accelerate, so that the hydraulic pump can produce greater flow. Such a vicious circle will lead to overheating or burning of the clutch until it is completely invalid.
2、自动上料搅拌车离合器活塞密封性的检测装载机行走无力或油温过高时,就需要判断是离合器活塞密封不严还是油压不足引起的,但常规检测手段有时很难断定是哪个原因引起故障,尤其是在无动力的情况下,检查组装好的变速器总成的各密封环就更困难了。此时,可采用气压阀进行测试。
2. When the loader moves weakly or the oil temperature is too high, it is necessary to judge whether the clutch piston seal is not tight or the oil pressure is insufficient. However, it is sometimes difficult to determine which cause the fault by conventional detection methods, especially in the case of no power, it is more difficult to check the seal rings of the assembled transmission assembly. At this time, the pneumatic valve can be used for testing.
首先,将自动上料搅拌车变速器控制阀拆掉(对组装好的变速器应在装控制阀之前),然后依次给变速器各油孔通人0.6一0.8MPa的气体,若某一个孔通人气体时,听到"嘭"的一声且无漏气声或漏气声很小进口计量泵,则说明与之对应的离合器活塞与缸筒间的密封良好;若听不到活塞压紧摩擦片的声响且漏气声较大,则说明离合器活塞与缸筒间的密封失效,应更换密封件。
First of all, remove the control valve of the automatic feeding mixer transmission (before installing the control valve for the assembled transmission), and then fill each oil hole of the transmission with 0.6-0.8mpa gas in turn. If a hole is filled with gas, a "bang" sound can be heard, and there is no air leakage sound or the air leakage sound is very small, It shows that the seal between the clutch piston and cylinder is good; If the sound of the piston pressing the friction plate is not heard and the air leakage is large, the seal between the clutch piston and the cylinder barrel is invalid, and the seal should be replaced.
以上内容是由自上料搅拌车友情提供,更多的精彩请点击:http://www.zkzsljbc.com我们坚持诚信为本的经营纲领,欢迎您的合作!
The above content is provided by the self feeding mixer. For more highlights, please click: http://www.zkzsljbc.com We adhere to the integrity-based business philosophy, welcome your cooperation!
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