Table of Contents

What is crank rocker mechanism

The crank rocker mechanism motion is a mechanical system that converts rotary motion into oscillating motion. It consists of a crank, a connecting rod, and a rocker arm, allowing for a wide range of applications in machinery and mechanical devices.

Key Features

  1. Components:
    • Crank: A rotating disk or arm attached to a shaft that provides the input rotary motion.
    • Connecting Rod: A link that connects the crank to the rocker arm, transmitting motion.
    • Rocker Arm: An oscillating arm that pivots around a fixed point, converting the linear motion from the connecting rod into oscillating motion.
  2. Functionality:
    • Motion Conversion: As the crank rotates, it moves the connecting rod, which in turn causes the rocker arm to oscillate back and forth.
    • Variable Stroke: The angle and length of the crank can be adjusted to change the amplitude of the oscillation.
  3. Applications:
    • Mechanical Systems: Used in various machines, such as shapers, slotters, and certain types of engines.
    • Pumping Devices: Commonly found in pumps where oscillating motion is required.
    • Automotive: In some designs of internal combustion engines, where the crankshaft drives the rocker arms.
  4. Advantages:
    • Efficiency: Effectively converts rotary motion into useful oscillating motion with minimal energy loss.
    • Simplicity: A straightforward design that is easy to manufacture and maintain.
    • Versatility: Can be adapted for different applications by changing the crank length and angle.

Crank Rocker Mechanism Animations

Add Virtual Constraint Rod To Prevent Driven Crank From Reversing

Converted To Crank Slider Mechanism

Crank Drives Four Sets Of Parallelogram Mechanism

Crank Rocker And Crank Slider Series Mechanism

Crank Rocker And Sine Series Mechanism

Crank Rocker Mechanism 1

Crank Rocker Mechanism 2

Crank Rocker Mechanism Realizes Approximate Straight Line Trajectory

Crank Rocker Mechanism With Eccentric Adjustment Of Slider Stroke

Crank Rocker Slider Three-Level Mechanism 1

Crank Slider And Rotating Guide Rod Series Mechanism

Crank Slider And Swinging Guide Rod Mechanism After Point C Position Is Changed

Crank Slider Mechanism

Crank Swinging Guide Rod And Sine Series Mechanism

Dead Point Position When Connecting Rod And Driven Member (Crank) Are Collinear

Double Crank And Crank Slider Series Mechanism

Double Crank And Rotating Guide Rod Series Mechanism

Double Crank Mechanism

Double Eccentric Disk Solves Driven Crank Reversal

Double Rocker Mechanism Driven By Gear Pair

Double Rocker Mechanism

Double Rotating Block Elliptical Mechanism

Driven Crank Reverses

Gear Pair Connects Crank Rocker And Swinging Guide Rod Mechanism

Lock Eye Mechanism With Crank And Cam Speed Being The Same

Lock Eye Mechanism With Crank Speed Twice That Of Cam

Movement Trajectory Of Points A, B, And C On Connecting Rod

Moving Guide Rod Mechanism

Parallelogram Mechanism

Rocker Active Clockwise Dead Point Position

Rocker Active Counterclockwise Dead Point Position

Rotating Guide Rod Mechanism When Guide Rod Is Active And Crank Is Driven

Rotation Guide Rod Mechanism

Sewing Machine Pedal Crank Rocker Mechanism

Swinging Guide Rod Mechanism

Trajectory Of Point A On Driven Crank

Triple Parallelogram Mechanism

Use A Double Crank Mechanism To Simulate The Movement Of Plow Claws