Lubricating mechanism of variable valve timing electric phase modulation transmission device

Abstract

The invention discloses a lubricating mechanism of a variable valve timing electric phase modulation transmission device. The lubricating mechanism comprises a cam shaft, a center bolt, an eccentric shaft, a supporting wheel, a planet wheel, an input inner gear ring, a chain wheel, a driving mechanism and a lubricating oil channel; the center bolt is connected with a first end of the cam shaft, and the eccentric shaft is rotationally arranged on the center bolt in a sleeving mode; the supporting wheel is fixedly arranged at the first end of the cam shaft in a sleeving mode, and an inner tooth part is arranged on the supporting wheel; the planet wheel is rotationally arranged on the eccentric shaft in a sleeving mode, a large tooth part and a small tooth part are arranged on the planet wheel, and the small tooth part is meshed with the inner tooth part of the supporting wheel; the input inner gear ring is arranged on the chain wheel in a sleeving manner, and the input inner gear ring is meshed with the large tooth part of the planet wheel; the chain wheel is fixedly connected with the input inner gear ring, and the driving mechanism can drive the eccentric shaft to rotate; and the lubricating oil channel is arranged on the center bolt, the lubricating oil channel extends to a bearing raceway face of the center bolt from the tail of the center bolt, and an oil channel outlet of the bearing raceway face communicates with a needle bearing. The axial size and the weight can be reduced, the two-stage speed reduction large speed ratio of 100-200 can be achieved, and therefore, the motor power is reduced.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engine components, and more precisely relates to a lubricating mechanism for a variable valve timing electric phase modulation transmission device. Background technique [0002] As the power machinery with the highest thermal efficiency and the most widely used at present, the internal combustion engine generates 90% of the total power of power plants used in the world, and is the main consumption channel of petroleum energy in the world. With the increase of car ownership, the oil consumption of internal combustion engines will increase rapidly, and the contradiction between oil supply and demand will inevitably become increasingly serious. While consuming a large amount of energy, internal combustion engines are also the biggest source of pollution to the atmospheric environment, especially the urban atmospheric environment. This shows that innovation Internal combustion engine techn...

AI Technical Summary

Problems solved by technology

At low speed, phase adjustment is not possible

High-speed phasing is slow and imprecise

In the existing electric variable timing mechanism, either the weight and size are too large, or the single-stage speed ratio is small (about 60)

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