Semitrailer rear turning angle control mechanism capable of performing accurate guidance

Abstract

The invention discloses a semitrailer rear turning angle control mechanism capable of performing accurate guidance. The mechanism comprises a connecting rod fixing device and a driving device. The driving device comprises an oil cylinder and a supporting base. The supporting base is hinged to a frame, a hinge point is located at the rotation center of the supporting base, and the supporting base can rotate around the hinge point. One end of the oil cylinder is hinged to the frame, and the other end of the oil cylinder is hinged to the supporting base and used for driving the supporting base to rotate. Four axles hinged to the frame are installed on the frame, two axles form one set and are coaxially arranged, and the front set of axles and the rear set of axles are parallelly arranged. The connecting rod fixing device comprises four connecting rods hinged to the supporting base, one end of each of the four connecting rods is hinged to the supporting base, and the other end of each of the four connecting rods is hinged to the corresponding axle. The semitrailer rear turning angle control mechanism hydraulically controls rear wheel steering, the steering precision is greatly improved, the steering equidirectional property of wheels is ensured, and the potential safety hazards of a semitrailer in transportation are decreased.

Description

technical field [0001] The invention relates to the field of semi-trailers, in particular to a rear corner control mechanism of a semi-trailer that can be precisely guided. 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 coupling device that can transmit horizontal and vertical forces to the tractor. Heavy transport vehicles. It mainly transports bulky goods that are not easy to disassemble. Compared with "single-body" cars, semi-trailers can improve the comprehensive economic benefits of road transportation. The transportation efficiency can be increased by 30-50%, the cost can be reduced by 30-40%, and the fuel consumption can be reduced by 20-30%. More importantly, the use of semi-trailers can also play a certain role in promoting the organizational form of my country's logistics. [0003] At present, semi-trailers are widely used in the fiel...

AI Technical Summary

Problems solved by technology

[0007] In the actual use of the existing technology structure, the steering angle is not accurate enough, which affects the steering synchronization of the wheels, and the wheels fail many times during the steering and cannot be turned, which affects the use of the semi-trailer.

This is mainly because the main components in the steering mechanism are the crank linkage mechanism and the steering knuckle, which are directly controlled by the oil cylinder. Because the oil cylinder itself inevitably has motion errors, plus the crank linkage mechanism The accuracy of the transmission itself is limited, making the transmission not stable enough, and there are transmission errors

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