Wheel Tractor Hand Brake Control Mechanism

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 hand brake control mechanism of a wheeled tractor, which belongs to the technical field of brake control of wheeled tractors. Background technique [0002] Usually the parking handle is only used for parking, not as a brake. However, with the development and changes of foreign markets, especially the changes of new European regulations, a more reasonable and efficient hand brake control mechanism is required to meet the needs of customers. This kind of hand brake control mechanism can be used as a parking brake. Use, can also play the effect of emergency braking. But most of the hand brake control mechanisms are connected with the hand brake with the pedal with a flexible shaft and a pull rod at present, and realize the function of braking while the vehicle is running and having the parking brake concurrently. Present hand brake operating mechanism is to be connected with pedal brake operating mechanism, when carrying out e...

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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