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由于单杆双作用油缸的两腔作用面积不等,因而往返速度差别较大,对诸如磨床一类要求往返等速的机械来说是很不利的。为达到等速目的,有的在无杆腔内加装活塞杆,如M2110A内圆磨床;为减少往返速度差,有的采用尽量减小活塞杆直径的方法,如某些中小型平面磨床。但这些方法都有不少缺点,如加装活塞杆会增加泄漏环节,并受地位限制,也提高了成本;减小活塞杆直径,将使活塞杆在承受压力时容易产生弯曲变形,给传动带来不良影响。我厂进口的一台西德弗尔通拉1米外圆磨床,其结构比较先进,采用了动平衡砂轮等新技术,但却使
Due to the single-rod double-acting cylinder of the two chambers of different sizes, and therefore the greater difference between the round-trip speed, such as a class of grinding machines require round-trip speed of the machine is very unfavorable. To achieve the purpose of equal speed, some rodless cavity with piston rod, such as M2110A internal grinder; In order to reduce the speed difference, there are some methods to minimize the diameter of the piston rod, such as some small and medium surface grinder. However, these methods have many shortcomings, such as the installation of piston rod will increase the leakage link, and by the position constraints, but also raise the cost; reduce piston rod diameter, will make the piston rod prone to bending deformation when subjected to pressure, to the drive belt To adverse effects. I plant imported a West German Felt 1 m cylindrical grinding machine, its more advanced structure, using the dynamic balance wheel and other new technologies, but to make