Reducer with intermittent lubrication mechanism

Abstract

The invention relates to a speed reducer with an intermittent lubricating mechanism. The speed reducer consists of a body, a rigid inner gear ring, a bearing, a flexible outer gear cup, a wave generator, a contact assembly and a pushing assembly. The rigid inner gear ring is provided with an oil channel communicating with an oil storage space of the body, and the oil channel communicates with an inner gear, so that the mutually engaged inner gear of the rigid inner gear ring and an outer gear of the flexible outer gear cup are lubricated. Meanwhile, the pushing assembly is driven by an inner ring or a flexible gear cup part to make intermittent contact with the contact assembly, and therefore, lubricating oil in the oil storage space can be intermittently released, and the purpose that intermittent lubrication can still be carried out under the condition of no continuous oil supply for lubrication is achieved.

Description

technical field [0001] The invention relates to a reducer, in particular to a reducer with an intermittent lubricating mechanism. Background technique [0002] The harmonic reducer is a reduction device with a high reduction ratio. In the structural configuration of the prior art, it mainly includes a rigid inner gear ring, a flexible outer tooth cup set in the rigid inner gear ring, and a rotatable The wave generator installed in the flexible external tooth cup, when the wave generator is assembled in the flexible external tooth cup, the flexible external tooth cup will be pushed by the outer peripheral edge of the wave generator to become an ellipse, by Therefore, when the wave generator is driven by the power source and starts to rotate, the rigid inner toothed ring and the flexible outer tooth cup can be completely engaged at the long axis of the wave generator, while at the short axis of the wave generator Complete disengagement, because there is a difference in the nu...

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Problems solved by technology

[0003] In order to achieve the effect of prolonging life and reducing wear, there are different lubrication designs in the prior art, such as US20080245172A1 patent case, which mainly adds oil injection holes and oil outlet holes inside the reducer, and the oil circuit design of oil injection can lubricate at the same time The rigid wheel, the flexible wheel, and the inside of the bearing, through the process of continuous oil injection, allow the grease to flow from the oil outlet, so that the wave generator can obtain the lubrication effect, but because the aforementioned scheme of the patent requires continuous oil supply lubrication, if there is no continuous oil supply Lubrication does not have any lubrication cycle effect

On the other hand, the US5984048A patent case mainly adds an oil seal design to the flexible spline in the reducer so that the grease will not flow into the input shaft. However, the aforementioned scheme of the patent can only separate different lubricating greases, and cannot achieve the function of lubricating oil renewal. The overall lubrication effect will be affected

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