混凝土攪拌機(jī)的出現(xiàn)和應(yīng)用，可以為各種工程施工提供很多便利，這都?xì)w功于攪拌機(jī)，在一定程度上提高了設(shè)備的運(yùn)行效率。那混凝土攪拌機(jī)離合器活塞密封性的檢測(cè)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?

混凝土攪拌機(jī)離合器活塞密封性的檢測(cè)當(dāng)裝載機(jī)無(wú)法行走或油溫過(guò)高時(shí)，需要判斷是離合器活塞密封不嚴(yán)還是油壓不足。但是，常規(guī)的檢測(cè)方法有時(shí)很難確定是什么原因造成的問(wèn)題，尤其是在沒(méi)有電源的情況下，檢測(cè)小組更難以檢查已安裝的變速器總成的密封圈。

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.

此時(shí)，氣動(dòng)閥可用于測(cè)試。先拆下自動(dòng)加料攪拌車的變速器控制閥(組裝好的變速器應(yīng)在安裝控制閥之前安裝)，然后依次向變速器各油孔供氣0.6-0.8MPa。如果某個(gè)孔充了氣，有“砰”的一聲，進(jìn)口計(jì)量泵沒(méi)有或很少漏氣聲，說(shuō)明對(duì)應(yīng)的離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.

如果聽(tīng)不到活塞壓沖突片的聲音，漏氣聲很大，說(shuō)明離合器活塞與缸筒之間的密封失效，應(yīng)該更換密封。

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，混凝土攪拌機(jī)離合器損壞原因動(dòng)力換擋變速器離合器接合時(shí)，液壓油壓力克服拉簧力壓縮沖突片。隨著液壓油壓力的增加，沖突片與金屬盤(pán)接觸并逐漸受壓，使離合器能順利地將飛輪動(dòng)力傳遞給變速器的輸入軸。

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.

每次換擋，碰撞片都會(huì)與鋼片發(fā)生碰撞，產(chǎn)生的熱量會(huì)被冷卻液驅(qū)散。當(dāng)摩擦片和鋼片變薄時(shí)，需要更多的液壓油才能使它們充分接合，發(fā)動(dòng)機(jī)必須進(jìn)一步加速，這樣摩擦片在鋼片上的滑動(dòng)力矩就會(huì)延長(zhǎng)，摩擦產(chǎn)生的熱量也會(huì)更多，促使液壓油的溫度增加。

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.

當(dāng)溫度足以改變變速器中密封件的功能時(shí)，變速器會(huì)內(nèi)部泄漏。而內(nèi)漏不斷從兩個(gè)方面造成熱量的增加:高壓油通過(guò)損壞的密封泄漏，使油溫不斷升高。

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?yàn)槁┯?，液壓泵必須輸送更多的油?lái)保證接合離合器時(shí)所需的壓力，這樣離合器才能完全接合，這也需要發(fā)動(dòng)機(jī)不斷加速，這樣液壓泵才能產(chǎn)生更多的流量。如此惡性循環(huán)，必然導(dǎo)致離合器過(guò)熱或燒毀，直完全失效。

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.

如果操作者要保證混凝土攪拌機(jī)的操作功能，就要保護(hù)好攪拌機(jī)的各個(gè)零部件，只有這樣才能讓設(shè)備運(yùn)行的更好，更多內(nèi)容就來(lái)網(wǎng)站www.wishnailspa.com咨詢了解吧。

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.wishnailspa.com Com.