Combined type herringbone gear structure

Abstract

The invention relates to a combined type herringbone gear structure. The combined type herringbone gear structure comprises a shaft, a right-handed rotation single helical gear and a left-handed rotation single helical gear. The rotation direction of the right-handed rotation single helical gear is opposite to that of the left-handed rotation single helical gear. The combined type herringbone gearstructure further comprises a distance ring which is arranged between the right-handed rotation single helical gear and the left-handed rotation single helical gear. The right-handed rotation singlehelical gear, the left-handed rotation single helical gear and the distance ring are in cooperative connection with the shaft through keys. According to the combined type herringbone gear structure, split-type forging can be adopted, the machining method is flexible, more machining tools can be selected, machining time is saved, and the cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of speed reducers, in particular to a combined herringbone gear structure. Background technique [0002] At present, most herringbone gears on the market are formed by integral forging, which can be used when the diameter is relatively small, but if the integral type is used when the diameter is large, the weight of the forging is very large and the cost is very high, and the second is gear hobbing and grinding. The weight of the tooth is limited. The integral herringbone gear hobbing and grinding need to find a much larger machine tool, the cost is higher, and the processing equipment does not necessarily need to be outsourced. The left-handed gear and the right-handed gear of the herringbone gear shaft form herringbone teeth and are located in the middle of the shaft. The distance between the two teeth is only undercut. The assembly method of this structure is difficult in the assembly process, and the cost inc...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the herringbone gears on the market are formed by integral forging, which can be used when the diameter is relatively small, but if the integral type is used for large diameters, first, the weight of the forging is very large, and the cost is very high. Second, gear hobbing, grinding The bearing weight of the teeth is limited, and the integral herringbone gear hobbing and gear grinding need to find a much larger machine tool, the cost increases, and the processing equipment does not necessarily require outsourcing

The left-handed gear and the right-handed gear of the shaft of the herringbone gear form herringbone teeth and are located in the middle of the shaft. The distance between the two teeth is at most only the undercut. High equipment requirements

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