混凝土搅拌机的出现和应用，可以为各种工程施工提供很多便利，这都归功于搅拌机，在一定程度上提高了设备的运行效率。那混凝土搅拌机离合器活塞密封性的检测做法如何呢？

The emergence and application of concrete mixer can provide a lot of convenience for various engineering construction, which is due to the mixer, which improves the operation efficiency of the equipment to a certain extent. What about the testing method of the tightness of the clutch piston of the concrete mixer?

混凝土搅拌机离合器活塞密封性的检测当装载机无法行走或油温过高时，需要判断是离合器活塞密封不严还是油压不足。但是，常规的检测方法有时很难确定是什么原因造成的问题，尤其是在没有电源的情况下，检测小组更难以检查已安装的变速器总成的密封圈。

Detection of the tightness of the clutch piston of concrete mixer when the loader cannot walk or the oil temperature is too high, it is necessary to judge whether the clutch piston is not tightly sealed or the oil pressure is insufficient. However, it is sometimes difficult to determine the cause of the problem by conventional testing methods, especially when there is no power supply, it is more difficult for the testing team to check the sealing ring of the installed transmission assembly.

此时，气动阀可用于测试。先拆下自动加料搅拌车的变速器控制阀(组装好的变速器应在安装控制阀之前安装)，然后依次向变速器各油孔供气0.6-0.8MPa。如果某个孔充了气，有“砰”的一声，进口计量泵没有或很少漏气声，说明对应的离合器活塞和缸筒密封良好。

At this time, the pneumatic valve can be used for testing. First remove the transmission control valve of the automatic feeding mixer (the assembled transmission should be installed before the control valve is installed), and then supply 0.6-0.8mpa to each oil hole of the transmission in turn. If a hole is filled with air, there is a "bang" sound, and the inlet metering pump has no or little air leakage sound, indicating that the corresponding clutch piston and cylinder barrel are well sealed.

如果听不到活塞压冲突片的声音，漏气声很大，说明离合器活塞与缸筒之间的密封失效，应该更换密封。

If you can't hear the sound of the piston pressing the collision plate and the sound of air leakage is very loud, it indicates that the seal between the clutch piston and the cylinder barrel is invalid, and the seal should be replaced.

此外，混凝土搅拌机离合器损坏原因动力换挡变速器离合器接合时，液压油压力克服拉簧力压缩冲突片。随着液压油压力的增加，冲突片与金属盘接触并逐渐受压，使离合器能顺利地将飞轮动力传递给变速器的输入轴。

In addition, the reason for the damage of the concrete mixer clutch is that when the power shift transmission clutch is engaged, the hydraulic oil pressure overcomes the tension spring force to compress the collision plate. With the increase of hydraulic oil pressure, the conflict plate contacts with the metal plate and is gradually pressurized, so that the clutch can smoothly transmit the flywheel power to the input shaft of the transmission.

每次换挡，碰撞片都会与钢片发生碰撞，产生的热量会被冷却液驱散。当摩擦片和钢片变薄时，需要更多的液压油才能使它们充分接合，发动机必须进一步加速，这样摩擦片在钢片上的滑动力矩就会延长，摩擦产生的热量也会更多，促使液压油的温度增加。

Every shift, the collision plate will collide with the steel plate, and the heat generated will be dissipated by the coolant. When the friction plate and steel plate become thinner, more hydraulic oil is needed to make them fully engaged, and the engine must be further accelerated. In this way, the sliding torque of the friction plate on the steel plate will be prolonged, and more heat will be generated by friction, which will increase the temperature of the hydraulic oil.

当温度足以改变变速器中密封件的功能时，变速器会内部泄漏。而内漏不断从两个方面造成热量的增加:高压油通过损坏的密封泄漏，使油温不断升高。

When the temperature is sufficient to change the function of the seals in the transmission, the transmission will leak internally. The internal leakage causes the increase of heat from two aspects: the high-pressure oil leaks through the damaged seal, making the oil temperature rise continuously.

因为漏油，液压泵必须输送更多的油来保证接合离合器时所需的压力，这样离合器才能完全接合，这也需要发动机不断加速，这样液压泵才能产生更多的流量。如此恶性循环，必然导致离合器过热或烧毁，直至完全失效。

Because of oil leakage, the hydraulic pump must 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 accelerate continuously, so that the hydraulic pump can produce more flow. Such a vicious cycle will inevitably lead to overheating or burning of the clutch until it is completely ineffective.

如果操作者要保证混凝土搅拌机的操作功能，就要保护好搅拌机的各个零部件，只有这样才能让设备运行的更好，更多内容就来网站www.zkhntjbj.com咨询了解吧。

If the operator wants to ensure the operation function of the concrete mixer, it is necessary to protect all parts of the mixer. Only in this way can the equipment operate better. For more information, please visit www.zkhntjbj.com Com.