Motor differential confluence power uninterrupted gear shifting system

Abstract

The invention discloses a motor differential confluence power uninterrupted gear shifting system. According to the system, an engine output shaft is connected with a main clutch, then penetrates through a gearbox input shaft and is connected with a gear shifting clutch driving disc; a gear ring clutch driven disc connecting shaft is connected with a gear shifting clutch driven disc, a gear shifting brake rotating disc and a planet row gear ring at the same time; a sun gear shaft penetrates through a planet carrier supporting shaft and is connected with a sun gear and a Z4 driven gear at the same time; a planet carrier output Z1 driving gear is connected with the planet carrier supporting shaft; a planet carrier output Z2 driven gear is connected with a gearbox output shaft; a gear shifting motor Z3 driving gear is connected with a gear shifting motor output shaft; a power output shaft penetrates through the sun gear shaft and the gear ring clutch driven disc connecting shaft and then is connected with the engine output shaft; the engine output shaft, the gearbox input shaft, the gear ring clutch driven disc connecting shaft, the planet carrier supporting shaft and the power output shaft are of a concentric structure. Therefore, multiple functions of uninterrupted power gear shifting and the like can be realized.

Description

technical field [0001] The invention relates to the field of new gear shifting systems for non-road and road vehicles, in particular to a power uninterrupted gear shifting system for differential confluence of electric motors. Background technique [0002] The existing non-road transmission system is divided into manual shift system according to the shift mode; stepped power uninterrupted automatic shift system; stepless continuous CVT (continuously variable transmission) shift system. [0003] 1. Manual shift system: [0004] A shift system consisting of a manual shift lever, a shift shaft and a shift fork; the system needs to separate the main clutch when shifting gears, cut off the power input to the hollow shaft of the gearbox, manually operate the gear selection and shifting process, and stop when working shift gears. [0005] 2. Power uninterrupted automatic shift system: [0006] Refers to the shifting process of the vehicle under the condition that the power from ...

AI Technical Summary

Problems solved by technology

[0016] (1) Tractors with manual shifting drive trains need to stop and shift frequently to meet the traction and speed requirements of farm implements. The work intensity is high, the work efficiency is low, and the quality is unstable.

[0017] (2) The engine speed changes with the speed of the vehicle and cannot automatically shift gears, resulting in the engine not working in a stable and economical speed range, high fuel consumption, poor emissions, and large vibration wear

[0021] (1) The engine cannot run stably in a small speed range, although the non-stop shifting is realized, the engine fuel consumption, emissions, vibration wear and other indicators are poor

[0022] (2) The transmission system structure requires a large number of clutches and proportional valves. With the increase of clutch wear, the shift control law will change with the change of clutch wear, operating environment temperature, and oil cleanliness; Poor stability

[0023] (3) The traditional power shift gearbox, to achieve super crawling gear (ultra-low speed), needs to add a complicated reduction gear train; it is difficult to achieve a crawling speed of 0.2-0.4Km / h

[0024] (4) The key technology of the system is mastered by foreign companies and mainly depends on imports. The price of the transmission system is high and the maintenance cost is high

[0028] (1) The mechanical transmission system consisting of 4-6 gears is a transmission mechanism composed of multi-row planetary mechanisms and multiple wet clutches or brakes. The structure is complex and the cost is high

[0029] (2) The hydraulic power distribution system composed of hydraulic precision coupling parts has very high requirements on the cleanliness of use and maintenance, and the cost of use and maintenance is high

[0030] (3) Because the technology of these systems is basically mastered by foreign companies, the products mainly rely on imports, and the cost is very high

[0034] Disadvantages: multi-row planetary mechanism plus multiple clutches and brakes are combined to realize multi-speed automatic transmission, with many parts, complex structure and low transmission efficiency

[0037] Disadvantages: due to the use of power interruption to shift gears, the requirements for shift control strategies and software are high, the timing of shifting is difficult to control, and the smoothness of shifting is poor; under non-road conditions, due to the large driving resistance of the vehicle, the inertia The speed drops too fast, the gear cannot be changed normally for a long time, and the adaptability of the vehicle under non-road conditions is poor, so that it cannot be used

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