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What is the cyclic load of the elastic pin coupling in work

时间:2021-02-22 07:19:37 Author: ever-power transmission Article source: this site Click: 82 times

弹性柱销联轴器传递扭矩大小的功能成为了联轴器选择的重要的标准。对于标准联轴器,各型号都已定出了许用扭矩值,因此,选择型号时,联轴器实际需要传递的扭矩要小于所选联轴器的许用扭矩。联轴器实际需要传递的扭矩常用计算扭矩T0。表示,它等于联轴器的理论扭矩T乘以工作情况系数K。因此,上述条件可表示为:T0=KT。联轴器所联接的两轴,由于制作过程中和安装过程中做造成的误差,以及运转过程的变形以及温度变化的影响等,会造成两轴相对位置的不对中现象,往往不能确定严格的对中。根据联轴器有无弹性元件、对各种相对位移有无补偿能力,即能否在发生相对位移条件下保持联接功能以及联轴器的用途等,联轴器可分为刚性联轴器,挠性联轴器和稳定联轴器。联轴器的主要类型、特点及其在作用类别在传动系统中的作用刚性联轴器只能传递运动和转矩,不具备其他功能包括凸缘联轴器、套筒联轴器、夹壳联轴器等。

  联轴器的热处理是将金属或者合金在固态范围内,经过家人、保温、冷却的配合,使金属或者合金改动内部安排而所需求的功能的操作技术,联轴器的热处理是现代机械工业、冶金工业中提高产品质量和延伸机器零件使用寿命所不行短少的一环。
  弹性柱销联轴器在工作中的周期载荷指的是什么?
  1. In order to facilitate the solution of the differential equations of motion, it is necessary to simplify the mechanical models of the moment of inertia and stiffness on the driving and driven sides of the coupling in the transmission shaft system.Usually it is more typical to simplify into two equivalent discs, which are arranged on both sides of the coupling.
  2. Periodic load is a typical load form in mechanical transmission.In order to avoid resonance, the changing frequency of the periodic load and the natural frequency of the transmission shaft should be staggered.The method is to change the change frequency of the periodic load or change the change frequency of the shaft system.Because the load change frequency is related to the spindle speed, and the speed is a mechanical performance parameter, generally it cannot be changed at will.
  3、所以一般是通过改变轴系的固有频率来达到不发生共振的目的,而改变轴系的固有频率一般是改变轴系的转动惯量或刚度,转动惯量与机械结构有关,通过改变转动惯量很难实现,而轴系的刚度很容易改变。所以改变Elastic pin coupling就是为了改变轴系的刚度来实现避开共振的目的。
  4. Although elastic couplings generally have buffering and vibration absorption functions, elastic couplings with relative rigidity do not have the effect of damping vibration under the action of any variable torque. Sometimes it will cause more intense vibration. vibration.
  5、因此,只有联轴器的刚度与整个传动轴系的其他参数和载荷协调时,才能产生减振的效果。对于某一己定的传动轴系,转动惯量和固有频率能够有,如果己知所传扭矩的变化规律,如振幅和频率等,就能建立其轴系在扭转振动的微分方程,对该方程求解,即可有所需Elastic pin coupling刚度。

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