The gearbox of some small mixers is not easy to use, and there is always cracking. In fact, the ease of use of the gearbox is closely related to personal operating habits. If you master the operation method, the gearbox will be easy to operate. Small mixer operation to share some gearbox operation methods, let's have a look:

搅拌车9档带高低档变速箱的操作方法：高低档在转换时，只能在抵挡的一个档位4和高档的个档位5之间进行。如果跳档操作，比如4转6，6转3等，副箱同步器因转速差较大，摩擦带会早期耗损。如果高档摩擦带磨秃了，低转高的瞬间就会听到咔咔的打齿声，反之亦然，这是因为同步器摩擦带失效后齿轮的同步工作靠同步器结合齿和低档减速齿轮或高低档驱动齿轮的结合齿撞击结合所致。小型搅拌机。进而会造成上述齿轮的打齿，再进而会造成副档脱档。

Operation method of 9-gear high-low gear transmission of mixer truck: when shifting high-low gear, it can only be carried out between the last gear 4 and the first gear 5 of high gear. In case of skip operation, such as 4-turn-6-turn-3-turn-on-6-turn-on-3-turn-on-a-turn-on, the friction belt will be worn out early due to the large speed difference of the gearbox synchronizer. If the high-grade friction belt is worn out, the rattling sound will be heard at the moment of turning from low to high, and vice versa. This is because after the failure of the synchronizer friction belt, the synchronous work of the gear depends on the impact and combination of the synchronizer coupling teeth and the low gear reduction gear or the high and low drive gear. Small mixer. This will result in the above gear beating, and then cause the gear shift out of gear.

高低档转换时，由一个档区的空挡横拍另一档区的空挡后，必须有意识的稍等片刻，以保证副箱同步器的转换结合成功，一般听到转换器发出的啪啪声为准，然后再挂入你要转换的目标档位即可。如果副箱还没有结合成功（野蛮换挡、气路气压不稳、气路不畅等等因素），你就去挂主箱的档位，就有可能造成副箱同步器断销等故障，严重的还会造成副箱爆裂。

When switching from high to low gear, you must wait for a moment consciously after shifting from the neutral position of one gear area to the neutral position of another gear area, so as to ensure that the shift and combination of the auxiliary box synchronizer are successful. Generally, you can hear the crackling sound of the converter, and then put it into the target gear you want to change. If the auxiliary box has not been combined successfully (such as savage shift, unstable air pressure, poor gas path, etc.), you can shift to the gear of the main box, which may cause the failure of the synchronizer of the auxiliary box, such as broken pin, and even burst of the auxiliary box.

搅拌车是单H操纵的变速箱：这种档位只有一个空挡，所有的低档和高档对应的档位都是重合位置，包括空挡在内。因此它的高低档转换，无法靠横拍实现，而是靠驾驶室换挡手球侧面的高低档扳钮向下向上拨动实现高低档的转换。向下为抵挡，向上为高档。单H阀，其实就是单路的气阀，气流通过推动换挡叉实现档位之间的转换。单H阀用于不带副档的基础档位的切换。

The mixer is a single h-operated gearbox: this gear has only one neutral gear, and all the gears corresponding to low gear and high gear are overlapped, including neutral gear. Therefore, its high and low gear conversion can not be realized by the horizontal racket, but by the high and low gear button on the side of the shift handball in the cab downward and upward. Down for resistance, up for high-end. Single h valve, in fact, is a single way of air valve, the air flow through the shift fork to achieve the shift between gears. The single h valve is used to switch the base gear without the second gear.

搅拌车双H操纵的变速箱：双H就是双路气阀，其中一路通过副箱实现1.2.3.4档转换，另一路通过副箱实现高速5.6.7.8档的转换。小型搅拌机。双H阀主要用于带副箱实现高低档切换和基础档位切换，主箱和副箱是分开的，主箱的换挡动作和副箱的换挡动作需要同时做，结合起来才是挂高速档，所以是需要靠双路气阀实现的。

Gearbox operated by double-h mixer: double-h is a two-way air valve, one of which can realize 1.2.3.4 gear conversion through the auxiliary box, and the other way can realize high-speed 5.6.7.8 gear conversion through the auxiliary box. Small mixer. The double h valve is mainly used to realize high and low gear switching and basic gear switching with auxiliary box. The main box and auxiliary box are separated. The shift action of main box and auxiliary box need to be done at the same time. The combination of them is to engage high speed gear, so it needs to be realized by double-way air valve.