稳定土拌和机是一种边行驶边拌和的机械,在进行拌和作业时,经常遇到超负载情况,如被拌土壤内埋有大石头、污水井盖、树根、旧路面硬层等障碍物或拌和深度过大都会引起过载。此时,安装刀片的转子常被卡住不能转动。由于拌和机仍然向前行驶,极易损坏机器结构件和液压元件。为保障安全拌和作业,我们在WB 120型稳定土拌和机上新安了过载保护装置。过载保护装置的原理如附图所示。在转子 Stabilized soil mixers are machines that mix while driving. When mixing, they often encounter overload conditions, such as large stones buried in the soil, sewage covers, roots, and hard layers of old roads. Excessive mixing depth can cause overload. At this point, the rotor on which the blade is mounted is stuck and cannot rotate. Because the mixer is still moving forward, it is very easy to damage the machine structure and hydraulic components. In order to ensure safe mixing operations, we newly installed an overload protection device on the WB 120 stabilized soil mixer. The principle of the overload protection device is shown in the figure. In the rotor