Transmission Mechanism

A transmission mechanism is a member or mechanism that transfers power from one part of the machine to another, and the movement or operation of the machine or machine components.

Transmission Mechanism


(1) Change the output torque of the power machine to meet the requirements of the working machine;

(2) Transforming the motion of the output of the power machine into the form required by the working machine, such as changing the rotary motion to linear motion, or vice versa;

(3) Transferring the mechanical energy of one power machine to several working machines, or transferring the mechanical energy of several power machines to one working machine;

(4) Other special effects, such as facilitating the control, assembly, installation, maintenance and safety of the machine, etc.


According to different working principles, the transmission mode can be divided into:

Mechanical transmission

It refers to the transmission that uses mechanical means to transmit power and motion.

Divided into two categories:

  • Relying on power and friction transmission by friction between parts
  • An intermeshing transmission that transmits power or motion by engagement of the active member with the driven member or by engagement of the intermediate member.

Fluid drive

It refers to a kind of transmission that uses the fluid as a working fluid.

The transmission of energy by the static pressure of a liquid is called hydraulic transmission.

It is called hydraulic transmission that relies on the hydrodynamic action between the impeller and the liquid to transfer energy.

The use of gas pressure to transfer energy is called pneumatic transmission.

Electric drive

It refers to the use of electric motors to convert electrical energy into mechanical energy, to drive various types of production machinery, transportation vehicles and transmissions that need to be moved in life, also known as electric drag.

Compound drive

Refers to a mechanism or structure that utilizes two or more transmission modes.

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