Guide element

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In the mechanical technique used guide elements allowing that a body or a point of a body moved on a predetermined path is (out).

  • In the simple case, a body rotates in a radial bearing . Each of its points is on a circular path such as B. guided by a wheel , a rocker arm , a crank or a pendulum .
  • Guiding on crooked - also spatially crooked - lines are possible with the help of coupling gears . The arbitrariness of the line shape is greater as a coupling curve (= curve of a point of the coupling) if only the path of a point on the body is specified. So-called steering wheel guides are coupling gears in which one point of the coupling is guided on an approximately straight line.
  • Guides on an exactly straight line are made possible with a linear bearing - also known as a linear guide . Rails - including those of rail vehicles - are the general form of a linear guide element.

According to a more general definition, "Guide elements have the task of transmitting mechanical parameters such as distance , speed , acceleration , torque , power and others with as little loss as possible". This results in the division into bearing elements for rotations and those for longitudinal movements , and axes and shafts are referred to as the “actual” guide elements.

In a restrictive definition, guides are "..., with a few exceptions, straight guides ."

See also

Individual evidence

  1. ^ Siegfried Hildebrand: Feinmechanische Bauelemente , Hanser, 1968, pp. 351–52
  2. Werner Krause: Konstruktionselmente der Feinmechanik , Hanser 2004, p. 407