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A “belt fork” or “belt striker” is a mechanical device used in machinery to shift a flat belt between different pulleys, such as from a fast-moving pulley to a loose or idle pulley, and vice versa. Here’s a detailed explanation of its design and function:

  1. Design:
  • A belt fork typically consists of two parallel prongs or fingers that are attached at right angles to a sliding rod or lever mechanism.
  • The prongs are spaced apart to engage with the flat belt when the fork is positioned correctly.
  1. Functionality:
  • Belt Shifting: The primary function of a belt fork is to move a flat belt along its path from one pulley to another. This is often necessary when changing the operational speed or disengaging the belt from a driven pulley.
  • Manual Operation: In manual applications, the operator moves the belt fork by hand or with a lever to guide the belt onto or off of the desired pulley.
  • Automated Systems: In some automated systems, a belt fork may be actuated by pneumatic, hydraulic, or motorized mechanisms to control the positioning of the belt.
  1. Applications:
  • Belt forks are commonly found in various industrial machinery and equipment where flat belts are used for power transmission.
  • They are often used in conjunction with pulley systems that require frequent changes in belt speed or disengagement of the belt for maintenance or operational adjustments.
  1. Alternative Terms:
  • Besides “belt fork,” the device may also be referred to as a “belt striker” in some contexts, emphasizing its role in striking or engaging the belt onto the desired pulley.

In summary, a belt fork or belt striker is a mechanical tool used to manipulate flat belts in machinery, allowing for efficient and controlled movement between different pulleys to adjust speed, engage or disengage power transmission, or facilitate maintenance operations.

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