Detailed description of trailer drawbar structure

Detailed description of trailer drawbar structure

Tractor seat is one of the significant components of semi-trailer. As a device connecting tractor and semi-trailer, it is commonly known as saddle, and sometimes also known as the fifth wheel. It plays the role of bearing, steering and connecting the tractor and trailer, so the force of semi-trailer in the driving process is also quite complex, and it needs to bear multiple dynamic loads in vertical, longitudinal and horizontal directions, and it is a semi-trailer and its important connecting parts and safety parts.

Position of the fifth wheel in the trailer

In the standardized production of traction seat, it has a serialized and universal system, and its structural forms are diverse and its use performance is good, which can meet the needs of tractors working in various working environments.

Structural composition

The composition of the tractor saddle is shown in the figure:

Saddle plate - the main part of the traction seat. Install the support, locking hook, pin block, square box welding assembly and other components on it to form an integral part of the traction seat.

Locking hook - move the pin block by pulling the handle control assembly to lock and separate it from the traction pin.

Pin block - control the traction pin by pulling the handle control assembly to make it move.

Safety lock - lock the handle control assembly to prevent accidental decoupling.

Handle control assembly - used to control the movement of the locking hook and the pin block to lock and separate the traction pin.

The above is a detailed explanation of the structure of the trailer fifth wheel. If you have any other questions, please contact us!