A planetary transmission mechanism and method for shifting gears based on belt-type tooth brakes

Abstract

The invention relates to a planetary transmission mechanism and method for shifting gears based on a belt-type tooth brake, which includes a drive motor, an output shaft of the drive motor is connected to one end of a power input shaft, and the other end of the power input shaft is connected to a transmission shaft; the first The planetary row and the second planetary row are both connected to the transmission drive shaft, and the two planetary rows have the same input speed; the second planetary row is connected to the power output shaft, and the power is from the second planetary row through the power output shaft and the existing side transmission device Transmission to the output of the driving wheel on one side of the vehicle; the first planetary row is connected to the first row of belt-type tooth brakes, and the second planetary row is connected to the second row of belt-type tooth brakes. The invention is suitable for light crawler vehicles driven by independent electric drives on both sides, overcomes the sliding friction power loss of wet disc brakes, can realize small speed difference, shift without belt, effectively improves the efficiency of the transmission system, and reduces the structural size of the transmission device .

Description

technical field [0001] The present invention relates to a belt-type tooth-type brake transmission mechanism and method, in particular to a planetary transmission mechanism and method based on belt-type tooth-type brake shifting applied in the transmission device of an electric drive light-duty crawler vehicle that adopts motor speed regulation . Background technique [0002] As the middle part of the power device and the action device, the performance of the transmission device greatly affects the power and economy of the vehicle. As the main component of the transmission device, the speed change mechanism has become an important task of modern vehicle transmission technology to develop a speed change mechanism with high transmission efficiency, high power density and high reliability. As far as modern tracked vehicles are concerned, the speed change mechanism mostly uses wet disc brakes to achieve vehicle gear shifting, while wet disc brakes rely on the friction torque bet...

AI Technical Summary

Problems solved by technology

As far as modern tracked vehicles are concerned, the speed change mechanism mostly uses wet disc brakes to achieve vehicle gear shifting, while wet disc brakes rely on the friction torque between the friction discs for braking. The braking method is rough, which is easy to damage the friction discs and affect the transmission system. At the same time, the sliding friction of the friction plate and the discharge of the oil during the braking process make the power loss of the transmission system more serious, reduce the transmission efficiency, and affect the power and economy of the vehicle

In addition, disc brakes rely on hydraulic pressure to push the piston to make the friction plates slide and rub together, which requires a complex hydraulic system to provide hydraulic pressure, which requires high manufacturing requirements for brakes and brake lines, which increases the difficulty in cost and structural design.

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