Semi-trailer with accurate steering function

Abstract

The invention belongs to the technical field of transport vehicles, and discloses a semi-trailer with an accurate steering function. The torque of a front-row wheel group and a back-row wheel group which are at the back part of a vehicle frame is transmitted in a gear transmission manner, synchronous rotation of the front-row wheel group and the back-row wheel group is realized, the synchronicity of the rotation of the front-row wheel group and the rotation of the back-row wheel group is ensured through the smoothness and the reliability of gear transmission and the accuracy of the torque, and the passing rate of steering is greatly increased; a driving arc rack and a driven arc rack are arranged, so that the semi-trailer is convenient to manufacture, the transmission effect can be ensured through rack structures, besides material cost can be reduced, a cumbersome gear structure is omitted, and the practicality is greatly improved.

Description

technical field [0001] The invention relates to a transport vehicle, in particular to a semi-trailer. Background technique [0002] At present, semi-trailers are widely used in the field of transport vehicle technology. The front end of the frame is a gooseneck, the front part of the gooseneck is a traction docking platform, and the bottom of the traction docking platform is provided with a traction pin. The cargo platform is the lowest part of the vehicle frame, and there are multiple rows of wheel sets under the rear end of the vehicle frame. Usually the body of the semi-trailer is long. When the vehicle travels to a sharp turning section, it will encounter the problem of difficult steering. If the road section is narrow and the corner radius is small, the semi-trailer will often fail to pass, which will delay the transportation time and increase transportation cost. [0003] In order to facilitate the steering of the semi-trailer, a brand-new semi-trailer has been intr...

AI Technical Summary

Problems solved by technology

[0006] Although the prior art has solved the difficult problem of turning to a certain extent, some problems have been found in actual use: in the prior art, the parts that play a major role in the steering mechanism are crank linkage, steering knuckle, crank linkage, Steering knuckles are directly controlled by the oil cylinder. Due to the inevitable movement error of the oil cylinder itself and the limited transmission accuracy of the crank linkage mechanism itself, the transmission is not stable enough, and there are transmission errors, resulting in the steering angle of the wheel. Affect the synchronism of wheel steering, the wheels have many failures during steering and cannot turn, affecting the use of semi-trailers

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