The emergence and use of concrete mixer truck can provide a lot of convenience for various engineering construction. These are the credit of automatic loading mixer truck, which improves the operation efficiency of the equipment to the extent of use. If users want to ensure the use function of the automatic feeding mixer, one of the important accessories is the transmission shifter. If each accessory is used for a long time, there will be some problems. How to repair it after it is damaged? Follow Xiaobian to learn about it.
1、打金鱼
聚散器破坏的缘由能源换挡变速器聚散器接合时，液压油的压力降服绷簧力压紧抵触片。随着液压油压力的降低，抵触片与金属盘触摸并慢慢压紧，使聚散器将飞轮能源安稳地通报到变速器输人轴。每次换挡时，抵触片都要与钢片产生抵触，产生的热量由冷却液收回进来。
1. The reason for the damage of the clutch of the mixer truck when the clutch of the power shift transmission is engaged, the pressure of the hydraulic oil overcomes the tension spring force to press the collision plate. With the increase of hydraulic oil pressure, the collision plate and metal plate touch and compress gradually, so that the clutch can smoothly transfer the flywheel power to the transmission input shaft. During each shift, the collision plate will conflict with the steel plate, and the heat generated will be sent out by the coolant.
当抵触片及钢片变薄时，为了使它们充实接合就须要更多的液压油，策念头须进一步加快，抵触片在钢片上的打滑时辰也随之延长，由此产生的抵触热量也会更多，促使液压油的温度增加，当达到足以转变变速器中密封件功效的温度时，变速器就会产生内泄。
When the conflict plate and steel plate become thinner, more hydraulic oil is needed to make them fully engaged. The engine must be further accelerated, and the slip time of the conflict plate on the steel plate will also extend, resulting in more conflict heat, which will promote the temperature of the hydraulic oil to be added. When the temperature reaches the temperature sufficient to change the function of the seal in the transmission, the transmission will leak internally.
而内泄又从两个方面延续引发热量的增加：高压油经破坏的密封处泄漏，使油温延续降低；由于漏油，液压泵必将要保送更多的油液来确保接合聚散器时所需的压力，使聚散器充实地接合，这也要求策念头延续加快，使液压泵产生更大的流量。如斯恶性轮回，必将致使聚散器过热或烧损，直至完全生效。
The internal leakage continuously causes the addition of heat from two aspects: the high-pressure oil leaks through the damaged seal, making the oil temperature rise continuously; Because of oil leakage, it is necessary for the hydraulic pump to deliver more oil to ensure the pressure required to engage the clutch and fully engage the clutch, which also requires the continuous acceleration of the engine and greater flow of the hydraulic pump. Such a vicious cycle will inevitably lead to overheating or burning of the clutch until it completely fails.
2、打金鱼
的聚散器活塞密封性的检测也很关头。装载机启动行走不干劲和油温太高时，就须要判定是聚散器活塞密封不严仍是油压缺少引发的，但惯例检测手段偶然很难判定是哪一个缘由引发弊端，特别是在无能源的环境下，检查拼装好的变速器总成的各密封环就更坚苦了。
2. The detection of the tightness of the clutch piston of the mixer is also very important. When the loader has no power to start and travel and the oil temperature is too high, it is necessary to judge whether it is caused by the loose sealing of the clutch piston or the lack of oil pressure, but it is sometimes difficult to determine which cause the problem by conventional detection methods, especially in the case of no power, it is more difficult to check the sealing rings of the assembled transmission assembly.
此时，可接纳气压阀停止考试。主要，将主动上料打金鱼
变速器节制阀拆掉（对拼装好的变速器应在装节制阀之前），而后顺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入口计量泵，则申明与之对应的聚散器活塞与缸筒间的密封杰出；若听不到活塞压紧抵触片的消息且漏气声较大，则申明聚散器活塞与缸筒间的密封生效，应替代密封件。
At this time, the pneumatic valve can be used for test. First of all, remove the control valve of the transmission of the automatic feeding mixer truck (for the assembled transmission, it should be before the control valve is installed), 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 is heard without air leakage sound or the air leakage sound is very small, It indicates that the seal between the corresponding clutch piston and cylinder barrel is good; If you can't hear the movement of the piston pressing the collision plate and the sound of air leakage is large, it indicates that the seal between the clutch piston and the cylinder barrel is invalid and the seal should be replaced.