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一、蟹爪运动轨迹曲线的分析目前使用的蟹爪式装载机等产品,种类繁多,但其工作机构基本相似,它主要是由运输机和装载部组合而成。蟹爪式装载机的耙爪装载部分,是由一对铰销四连杆平面机构组成,它对称地布置于运输机中心线左右两侧,其曲柄主动构件的转角互相错开180°,因此在运转时,由这对蟹爪机构能交替地进行循环工作,达到连续耙料和送料的目的。蟹爪运动轨迹曲线,在一个工作循环过程中,形成一个既光滑又封闭的曲线。按照它的工作性质,这种封闭的运动轨迹曲线,可划分为如下几个主要阶段:
First, the crab claw trajectory curve analysis Currently used crab claw loaders and other products, a wide range, but its working mechanism is basically similar, it is mainly composed of transport aircraft and the Ministry of loading. Crab claw loader claw claw loading part is composed of a pair of hinge pin four-link plane mechanism, which is symmetrically arranged on both sides of the center line of the transporter, the crankshaft active components of the angular offset 180 °, so in operation When, by this pair of crab claw mechanism can be alternately recycled to achieve a continuous rake material and feeding purposes. Crab claw motion trajectory curve, in a work cycle, the formation of a smooth and closed curve. According to its nature of work, this closed trajectory curve can be divided into the following major stages: