Semitrailer connecting traction device

Abstract

The invention discloses a semitrailer connecting traction device. The device comprises a connecting beam for connecting a vehicle frame, the end part of the connecting beam of the connecting vehicle frame is connected with a rotating ball; connecting blocks are arranged on the outer sides of the rotating balls; the connecting block is provided with a hole groove for containing the rotating ball. Apushing assembly is arranged in the middle of the bottom of the slot; the pushing assembly is used for triggering the pushing assembly to push the rotating ball to move when the rotating ball makes contact with the pushing assembly, a connecting frame is arranged on the outer side of the connecting block and located in the connecting frame, a rotating rod is connected to the middle of the connecting frame, an opening is formed in one side of the connecting frame, and a semitrailer frame connecting beam is hinged to the other side of the connecting frame. Elastic connection between the connecting vehicle and the semitrailer is facilitated, the pushing assembly pushes the rotating ball to be away from the bottom of the hole groove conveniently, mutual abutting between the connecting vehicleand the semitrailer is reduced, the connecting vehicle and the semitrailer are elastically connected, traction connection between the tractor and the semitrailer is facilitated, and the driving performance of the semitrailer is improved.

Description

technical field [0001] The invention relates to the technical field of semi-trailers, in particular to a semi-trailer connecting traction device. Background technique [0002] A semi-trailer is a trailer whose axle is placed behind the vehicle's center of gravity (when the vehicle is evenly loaded) and is equipped with a hitch that transmits horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and their types are divided into 11-meter warehouse semi-trailers, 13-meter warehouse semi-trailers, and low-bed semi-trailers. It is a heavy-duty transport vehicle connected to the semi-trailer head through the traction pin. [0003] In the prior art, the traction structure is the main component used to transmit the traction force of the main vehicle. For various types of semi-trailers, the traction structure cannot be used universally. It is necessary to design and process the corresponding traction structure according to each type of ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the traction structure is the main component used to transmit the traction force of the main vehicle. For various types of semi-trailers, the traction structure cannot be used universally. It is necessary to design and process the corresponding traction structure according to each type of semi-trailer. The structure, design and processing costs are relatively high; and the existing traction pin device not only needs to bear the weight of the semi-trailer, but also bears the traction force of the traction semi-trailer, so that the impact force generated by the semi-trailer directly acts on the vehicle of the traction device. frame, which affects the driving stability and service life of the traction device

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