Eccentric-swing gear reducer

Abstract

The invention discloses an eccentric-swing gear reducer which comprises a pin wheel housing, pin teeth, a swing gear, a planet carrier and crankshafts, wherein pin tooth grooves are formed in the pinwheel housing; the pin teeth are installed in the pin tooth grooves; the swing gear is meshed with the pin teeth; the planet carrier is in rotatable connection to the pin wheel housing; the crankshafts are in rotatable connection to the planet carrier; the axes of rotation of the crankshafts relative to the planet carrier are parallel to the axis of rotation of the planet carrier relative to the pin wheel housing; shaft holes are formed in the swing gear; the crankshafts are provided with eccentric parts which are inserted into the shaft holes so as to drive eccentric gears to eccentrically rotate; and oil storage tanks which store a lubricant material used for lubrication at meshed positions of the pin teeth and the swing gear are formed in the pin wheel housing. The eccentric-swing gearreducer disclosed by the invention has the advantages that lubrication effects are good; and heat emission, abrasion and torque losses generated therefrom during meshing are reduced.

Description

Technical field [0001] The invention relates to an eccentric swing type gear reduction device. Background technique [0002] Most of the traditional eccentric swing gear reducers have disadvantages such as insufficient lubrication, large wear of the reducer components, rapid loss of transmission accuracy of the reducer, and short life cycle of the reducer. For example, the gear device disclosed in patent document CN104412004. This traditional high-precision eccentric swing gear reducer requires very high transmission error (less than 1 arc minute), which makes the swing gear external teeth, needle teeth and needle tooth grooves The gap is very small. During the transmission process of the external teeth of the swing gear, the needle teeth and the needle grooves meshing with each other, the lubricating oil or grease cannot circulate normally for lubrication, which will cause slippage between the swing gear and the needle teeth, which will result in the loss of torque transmission...

AI Technical Summary

Problems solved by technology

During the transmission process of the external teeth, pin teeth and pin tooth grooves of the swing gear, the lubricating oil or grease cannot circulate normally for lubrication, which will cause slippage between the swing gear and the pin teeth, resulting in loss of torque transmission, and at the same time, the three Otherwise, the meshing parts will generate heat and wear, and the generated heat and worn iron powder will cause damage to the eccentric oscillating gear device, and eventually make the eccentric oscillating gear device invalid.

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