Hand braking control mechanism of roller tractor

Abstract

The invention relates to a hand braking control mechanism of a roller tractor. One end of a hand braking bracing wire is hinged to a hand brake. One sides of two brake rocker arms and one side of a hand braking rocker arm are connected to a braking base in a rotating mode through a rotating shaft. A piston is arranged in a hydraulic cavity which is arranged in the braking base, the braking base is provided with a connector which is communicated with the hydraulic cavity, and a top rod of the piston is hinged to the other sides of the two brake rocker arms through a lifting shaft. A pulling shaft is connected to the two brake rocker arms and placed between the rotating shaft and the lifting shaft, one side of the pulling shaft is arranged in a limiting hole of the hand braking rocker arm, and the lower portion of a brake pull rod connected with the pulling shaft penetrates out of the braking base to be used for connecting a brake. A hinged base of a rocker arm assembly is connected to a box body or a connecting base in a rotating mode, and the other end of the hand braking bracing wire is hinged to a lower rocker arm. One side of a hand brake pull rod is hinged to an upper rocker arm, and the other side of the hand brake pull rod is hinged to the other side of the hand braking rocker arm. According to the hand braking control mechanism of the roller tractor, two independent operating mechanisms are arranged, the structure is reasonable and compact, and hand braking unfailing performance can be improved.

Description

Technical field [0001] The invention relates to a wheeled tractor hand brake operating mechanism, belonging to the technical field of wheeled tractor vehicle brake operating. Background technique [0002] Usually the parking handle is only used when parking the vehicle, and cannot be used as a brake. However, with the development and changes of foreign markets, especially the changes in the new European regulations, a more reasonable and efficient hand brake operating mechanism is required to meet customer needs. This kind of hand brake operating mechanism can be used as a parking brake. It can also achieve the effect of emergency braking. However, most of the hand brake operating mechanisms currently use flexible shafts and pull rods to connect the hand brake with the foot pedal, and realize the brake and the function of the parking brake when the vehicle is running. The current hand brake operating mechanism is connected with the foot brake operating mechanism. When emergency...

AI Technical Summary

Problems solved by technology

However, the hand brake operating mechanism and the foot brake operating mechanism cannot be independent of each other, so when the function of the foot brake operating mechanism is damaged, the manual brake operating mechanism cannot play the role of emergency braking.

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