The operation of tunnel loader mainly depends on the coordination and cooperation of various mechanical structure components, and then the specified actions are realized by hydraulic, electrical actuator and mechanical transmission mechanism to complete various operation items. It integrates four performances: hydraulic walking, excavation, collection, transportation and loading. The hydraulic walking function is to drive the front and rear wheels through the hydraulic motor. The hydraulic motor has three basic performances: forward, backward and automatic braking.

四輪驅動具有著地力，推動力強等特點，挖掘采集功能由機械手完成，機械手具有挖掘、伸臂、裝料，卸料性能，大臂可上升、下降，左右回轉，挖掘采集的操縱由全液壓控制，由六個操作手柄控制，每個手柄控制二個動作，共十二個動作。

The four-wheel drive has the characteristics of strong ground force and driving force. The excavation and collection function is completed by the manipulator. The manipulator has the functions of excavation, arm extension, loading and unloading. The boom can rise, fall and rotate left and right. The operation of excavation and collection is controlled by full hydraulic pressure and controlled by six operating handles. Each handle controls two actions, a total of 12 actions.

該系列工程機械的工作原理從工作性能方面來看也并不復雜。礦用裝載機的裝載輸送由輸送機系統(tǒng)完成，其輸送架由液壓缸控制升降，輸送架下降時可將前輪支起，同時輸送架前接料口與礦石接觸面緊密，工作時穩(wěn)定性強，同時可以散料，平整場地。傳送帶寬度為650mm，傳送速度約為5m/秒，傳送帶由液壓馬達帶動滾筒、使傳送機性能穩(wěn)定，使用壽命長。

The working principle of this series of construction machinery is not complex in terms of working performance. The loading and transportation of the mine loader is completed by the conveyor system. The conveyor frame is controlled by the hydraulic cylinder. When the conveyor frame is lowered, the front wheel can be supported. At the same time, the material receiving port in front of the conveyor frame is close to the ore contact surface, which has strong stability during operation. At the same time, it can disperse materials and level the site. The width of the conveyor belt is 650mm, and the conveying speed is about 5m / s. the conveyor belt is driven by a hydraulic motor to stabilize the performance and long service life of the conveyor.

由于隧道裝載機的液壓系統(tǒng)由一臺15kw的電機為動力帶動二聯(lián)高壓齒輪泵，液壓油通過齒輪泵分別輸入壹臺多路換向閥內，通過操作手柄實現(xiàn)對各液壓裝置的控制。整車電器系統(tǒng)采用礦用隔爆型電磁起動器，實現(xiàn)對電機的控制，保障人身和設備安 全。

As the hydraulic system of the tunnel loader is powered by a 15kw motor to drive the double high-pressure gear pump, the hydraulic oil is respectively input into a multi-channel directional valve through the gear pump, and the control of each hydraulic device is realized through the operating handle. The electrical system of the whole vehicle adopts mine flameproof electromagnetic starter to control the motor and ensure personal and equipment safety.