Classification and structure of traction seat

Classification and structure of traction seat

The traction device can not only bear part of the vertical mass of the semi-trailer, but also play a role in towing the semi-trailer, and it is also the steering mechanism of the semi-trailer. Traction is mainly composed of base plate, separation connection mechanism and support.

Traction can be divided into fixed type, lifting type and mobile type according to whether the support can move; According to the different degrees of freedom allowed, there are single degrees of freedom, two degrees of freedom and three degrees of freedom. According to their different separation connection mechanisms, they are divided into clamp type and hook pin type. Fixed traction seat Fixed traction seat is widely used at present. The bracket is fixed on the frame of the tractor, and the tractor seat is allowed to have specified degrees of freedom on the bracket.

A single degree of freedom fifth wheel is also called an I-axis fifth wheel. It can only tilt one octave longitudinally about the y-axis. This type of traction seat has high driving stability, and is suitable for driving semi-trailer with high speed, light load and high mass center on good roads. The frame bears high torque.

After the tractor is connected with the semi-trailer, first turn the safety baffle to one side, and then pull the handle to move the locking block forward to the L-shaped gap away from the splint. The spring is compressed and the front end of the splint is pulled by the fixed spring. And close to the locking block. Then drive the tractor forward to complete the separation of the semi-trailer. The support device of the semi-trailer shall also be lowered before separation.

The above is the classification and structure of the fifth wheel. If you have any other questions, please contact us!