Novel high-power herringbone gear compound planetary transmission speed reducer

Abstract

The invention discloses a novel high-power herringbone gear compound planetary transmission speed reducer. The novel high-power herringbone gear compound planetary transmission speed reducer comprises three-stage transmission systems. The speed reducer is characterized in that in the first-stage transmission system, a plurality of pairs of spiral bevel gears are employed to carry out transmission input conflux; in the second-stage transmission system, a differential planet transmission manner is employed to carry out power conflux; in the third-stage transmission system, a planetary transmission manner is employed to carry out power conflux; and power in the second-stage transmission system and the third-stage transmission system is gathered to a planet carrier for output. In the systems, except the bevel gears, all gears are herringbone gears, flexible pins with variable sections and sliding bearings are employed in the second-stage transmission system and the third-stage transmission system, a second-stage inner gear ring is in floating connection with a third-stage sun gear through a spline, a rigid fixing connection manner and an integral structure manner are not employed, the second-stage flexible pins are installed on the planet carrier, the third-stage flexible pins are installed on a casing, and the third-stage inner gear ring is in rigid fixing connection with the planet carrier. The novel high-power herringbone gear compound planetary transmission speed reducer is advantaged in that the speed reducer is large in transmission ratio, high in bearing capacity, low in vibration noise and wide in application prospect, and can operate stably.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to a novel high-power herringbone compound planetary transmission reducer. Background technique [0002] With the continuous acceleration of my country's modernization construction, the rapid development of modern industry, and the rapid development of metallurgy, steel, coal, cement and other industries, the demand for high-power reducers is increasing. At present, high-power vertical reducers are subject to processing and design capabilities. Restricted, heavily dependent on imports, the price is extremely high, and the delivery cycle is quite long, which seriously affects the implementation of industry projects. At present, my country's current high-power reducers generally use ordinary cylindrical gear transmission and ordinary NGW planetary transmission, resulting in large structural shape and volume. The quality is bulky, the relative transmission ratio and transmission po...

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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art above, the present invention provides a new type of high-power herringbone compound planetary transmission reducer, which has large transmission power and low vibration and noise. Due to the limitation of the maximum processing capacity of bevel gear processing machine tools, large-diameter bevel gears are difficult processing, and the transmission power of the reducer is very large, which requires a large gear module. Therefore, the conventional bevel g

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