自动上料搅拌车的出现和使用，能够为各类工程施工提供了诸多的便利，这些都是自动上料搅拌车的功劳，在使用的程度上提升了该设备的作业效率。使用人员要想保障自动上料搅拌车的使用性能，其中，一个重要的配件就是变速器换挡机，每一种配件使用时间长了，都会出现一些问题，在它损坏后如何进行维修呢？笔者来讲解一下。
The emergence and use of automatic loading mixer can provide a lot of convenience for various engineering construction. These are the credit of automatic loading mixer, which improves the operation efficiency of the equipment to the extent of use. If users want to ensure the service performance 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? Let me explain.
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. Causes of clutch damage of automatic feeding mixer truck when the clutch of power shift transmission is engaged, the pressure of 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. During each shift, the friction plate will rub with the steel plate, and the heat generated will be dissipated by the coolant.
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。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；
When the friction plate and steel plate become thinner, more hydraulic oil is required in order to make them fully engaged. The engine must be further accelerated, and the sliding time of the friction plate on the steel plate will 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 seals in the transmission, the transmission will produce internal leakage. The internal leakage continues to cause the increase of heat from two aspects: the leakage of high-pressure oil through the damaged seal continues to increase the oil temperature;
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，直完全失效。
Due to oil leakage, it is necessary for the hydraulic pump to deliver more oil to ensure the pressure required to engage the clutch and make the clutch fully engaged, which also requires the engine to continue to accelerate and make the hydraulic pump produce greater flow. Such a vicious cycle will inevitably lead to overheating or burning of the clutch until it is completely ineffective.
The above is the knowledge brought to you today. The automatic feeding mixer has focused on the industry for many years and continuously provides users with valuable content. Please continue to pay attention to us for more content: http://www.shanqijituan.com/
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2022-12-23
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