Classification and structure of saddle type traction seat

Classification and structure of saddle type traction seat

Saddle type traction seat 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. Saddle type traction seat is mainly composed of seat plate, separation connection mechanism and support.

The saddle type traction seat can be divided into fixed type, lifting type and mobile type according to whether its 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 the different separation connection mechanisms, there are also two types: clamp type and hook pin type. Fixed saddle traction seat Fixed saddle traction seat is a kind of widely used traction seat at present. Its support is fixed on the frame of the traction vehicle, and the saddle traction seat is allowed to have freedom on the support.

Single degree of freedom saddle traction seat is also called I-axis saddle traction seat. It can only make a longitudinal tilt of about eight degrees about the y-axis. This kind of saddle traction seat has high driving stability, and is suitable for high-speed, light load and high center of mass semi trailers running on better roads, and is mostly used for large containers

Semi trailers and high cargo platforms are mounted on bulk cargo semi trailers, but the torque borne by the frame is large.

After the tractor is connected with the semi-trailer, first pull the safety baffle to one side, and then pull the handle to move the locking block forward to leave the L-shaped notch of the splint. The spring is compressed, and the front ends of the splint are pulled together by the fixed spring and against the locking block. Then drive the tractor forward to complete the decoupling of the semi-trailer. The supporting device of the semi-trailer shall also be lowered before decoupling.