Instruction car control system and instruction car

Abstract

The invention provides an instruction car control system. The system comprises a main pedal mechanism and an auxiliary pedal mechanism, wherein each of the main pedal mechanism and the auxiliary pedal mechanism contains a pedal arm, the main pedal mechanism and the auxiliary pedal are connected through an inhaul cable; each pedal mechanism contains pedal planetary rotating shafts arranged on the pedal arm rotatably, and the two ends of the inhaul cable are separately connected with a main pedal planetary rotating shaft and an auxiliary pedal planetary rotating shaft. The invention also provides an instruction car containing the instruction car control system. By using the instruction car control system of the invention, when pedals pivot, the planetary rotating shafts arranged on the pedals rotate at the same time, namely the trajectory is similar to that of planets. Therefore, the inhaul cable installing holes of the planetary rotating shafts are automatically adjusted to always align with the inhaul cables and the extension directions of the inhaul cables can not change suddenly so that the inhaul cables can not bear bending moment and torsional moment and the service life of the inhaul cables can be prolonged.

Description

technical field [0001] The invention relates to a control system of a coach car and a coach car. Background technique [0002] As a teaching vehicle for driving schools, the coach car must be equipped with an auxiliary brake control mechanism or a secondary clutch-brake control mechanism for the coaches to teach. At present, most of the coach cars used in China are a pair of coach cars, which have both auxiliary brake pedal mechanisms, and most of them adopt the principle of mechanical levers. Specifically, a long rod is welded from the secondary brake pedal to connect to the primary brake pedal. However, this structure has large braking resistance and poor operability. In addition, this structural arrangement requires a large space, which is not practical for some compact models. [0003] In order to overcome the above problems, some coaches use cables to connect the main brake pedal and the auxiliary brake pedal to simplify the structure and enhance the operability. Ho...

AI Technical Summary

Problems solved by technology

Since the cable has multiple metal core wires, this additional torque and bending moment cannot be evenly distributed to the multiple metal core wires. Long-term use may cause the overall strength of the cable part at the connection between the cable and the pedal to be damaged, and it is easy to break in the part

When the additional torque and bending moment are concentrated on a part of the metal core wire, it is easier to break this part of the metal core wire, and then the torque and bending moment are concentrated on another part of the metal core wire, which may cause the tension part of the cable breaks faster

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