The mine loader is suitable for working in metal mines, roadways, roadways and narrow mines. Explosion proof mine loader is a special explosion-proof mine loader for coal mines. There is a high probability of gas in the coal mine, so explosion-proof measures should be taken for the engine bridge circuit, battery, lamp, exhaust air and other places where sparks are generated by the engine of the mine loader.

矿井装载机和防爆矿井装载机：巷道装载机发出异响类型及预防带棚的透气的矿山装载机发动机常见的异响主要有机械异响、燃烧异响、空气动力异响和电磁异响等

Mine loaders and explosion-proof mine loaders: types of abnormal noise emitted by roadway loaders and prevention of common abnormal noise of ventilated mine loader engines with safety sheds mainly include mechanical abnormal noise, combustion abnormal noise, aerodynamic abnormal noise and electromagnetic abnormal noise

(1)带棚的透气的矿山装载机异响主要是运动副配合间隙太大或配合面有损伤,运动中引起冲击和振动造成的。带棚的透气的矿山装载机因磨损、松动或调整不当造成运动副配合间隙太大时,运转中引起冲击和振动,产生声波,并通过机体和空气传给人耳,于是我们听到了响声。带棚的透气的矿山装载机如曲轴主轴承响、连杆轴承响凸轮轴轴承响、活塞敲缸响、活塞销响、气门脚响、正时齿轮响等,多是因配合间隙太大成的。

(1) The abnormal noise of the ventilated mine loader with safety shed is mainly caused by the impact and vibration caused by the large fitting clearance of the movement pair or the damage of the fitting surface during the movement. When a breathable mine loader with a safety shed is worn, loosened or improperly adjusted, resulting in too large fitting clearance of the movement pair, impact and vibration are caused during operation, generating sound waves, which are transmitted to the human ear through the body and air, so we can hear the sound. Breathable mine loaders with safety sheds, such as crankshaft main bearing, connecting rod bearing, camshaft bearing, piston knocking, piston pin, valve foot and timing gear, are mostly caused by too large fit clearance.

(2)燃烧异响主要是发动机不正常燃烧造成的。如汽油发动机产生爆燃或表面点火时,柴油发动机工作粗暴时,气缸内均会产生极高的压力波。这些压力波相互撞击并撞击燃烧室壁和活塞顶,发出强烈的类似敲击金属的声响,是典型的燃烧异响。

(2) Abnormal combustion noise is mainly caused by abnormal combustion of the engine. For example, when gasoline engine produces deflagration or surface ignition, and diesel engine works roughly, extremely high pressure waves will be generated in the cylinder. These pressure waves collide with each other and hit the combustion chamber wall and piston crown, making a strong sound similar to knocking metal, which is a typical combustion abnormal sound.

(3)空气动力异响主要是在发动机进气口、排气口和运转中的风扇处,因气流振动而造成的。

(3) Aerodynamic abnormal noise is mainly caused by airflow vibration at the engine air inlet, exhaust port and running fan.

(4)电磁异响主要是发电机、电动机和某些电磁器件内,由于磁场的交替变化,引起机械中某些部件或某一部分空间产生振动而造成的。

(4) The electromagnetic abnormal noise is mainly caused by the vibration of some parts or a part of the space in the machinery caused by the alternating change of magnetic field in the generator, motor and some electromagnetic devices.

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