Helical lubrication type harmonic wave reducer

Abstract

The invention discloses a helical lubrication type harmonic wave reducer. The helical lubrication type harmonic wave reducer comprises a rigid inner gear ring, a flexible outer gear cup, a wave generator and a flow turbulence component. The flexible outer gear cup is engaged with the rigid inner gear ring. The wave generator is provided with a bearing, an oval wheel and a coupling, wherein the bearing is arranged in the flexible outer gear cup; the oval wheel is arranged in the bearing; and the coupling is connected with the oval wheel. The flow turbulence component is located in an oil storage space formed between the wave generator and the flexible outer gear cup and provided with a rotating shaft portion and a helical blade arranged on the rotating shaft portion. The flow turbulence component is connected with the coupling of the wave generator through a rotating shaft, therefore when the flow turbulence component is driven by the coupling, lubricating oil can be made to generate convection through the helical blade, and thus the bearing of the wave generator can obtain a good lubrication effect.

Description

technical field [0001] The invention relates to a harmonic reducer, in particular to a spiral lubricated harmonic reducer. Background technique [0002] The harmonic reducer is a reduction device with a high reduction ratio. In the existing structural configuration, it mainly includes a rigid inner gear ring, a flexible outer tooth cup set in the rigid inner gear ring, and a rotatable ground 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 up by the outer peripheral edge of the wave generator and become elliptical, therefore, When the wave generator is driven by the power source and starts to rotate, the rigid inner gear ring and the flexible outer gear cup can be completely engaged at the long axis of the wave generator, and completely disengaged at the short axis of the wave generator , because there is a difference in the number of teeth...

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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. For example, the US7,905,326 patent case mainly allows lubricating oil to be injected into the oil supply of the flexible outer tooth cup through the oil supply path of the rigid inner gear ring In the hole, the wave generator can obtain the lubricating effect, but because the flexible outer tooth cup will continuously produce elastic deformation during the operation process, so the phenomenon of stress concentration is easy to occur at the position of the oil supply hole, resulting in the flexible outer tooth cup Structural damage to the cup

On the other hand, the JPY1994015151 patent case assembles the flexible external tooth cup and the lubricating oil storage mechanism in a concave-convex manner, but there may be additional friction between the lubricating oil storage mechanism, the flexible external tooth cup and the bearing. Collision, so that the overall lubrication efficiency will be affected

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