Star type herringbone gear reducer

A gear reducer and herringbone technology, which is applied in the direction of gear transmission, belt/chain/gear, transmission parts, etc., can solve the problems of difficult installation and complex structure, and achieve the effects of convenient installation, noise reduction and simple structure

Inactive Publication Date: 2014-11-12
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the shortcomings of the existing technology and overcome the problems of complex structure and difficult installation, the present invention proposes a star-shaped herringbone gear reducer

Method used

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  • Star type herringbone gear reducer
  • Star type herringbone gear reducer
  • Star type herringbone gear reducer

Examples

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Embodiment Construction

[0026] This embodiment is a star-shaped herringbone gear reducer.

[0027] refer to Figure 1 to Figure 8 , The star-shaped herringbone gear reducer in this embodiment consists of a sun gear 1, a planetary wheel shaft 2, a cylindrical roller bearing 3, a planetary carrier 4, an inner ring gear 5, an upper fixed ring 6, a lower fixed ring 7, and a first inner spline 8. The first external spline 9, the first boss 10, the planetary wheel 11, the first stud 12, the second internal spline 13, the elastic material 14, the flat keyway 15, the first gasket 16, the web 17. Second external spline 18, fixed plate 19, planet carrier top plate 20, planet carrier base 21, No. 2 boss 22, bolt 23, first arc boss 24, first arc groove 25, trapezoidal boss Platform 26, second gasket 27, lower ring gear 28, upper ring gear 29, trapezoidal groove 30, retaining ring 31, second arc groove 32, bottom plate 33, second arc boss 34, baffle plate 35 , Slotted hole 36, the third inner spline 37 is forme...

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Abstract

The invention discloses a star type herringbone gear reducer. The star type herringbone gear reducer comprises a planet carrier, a fixing ring, a sun gear, and a star gear pair formed by a planet gear and an inner gear ring, wherein the teeth of the sun gear, the teeth of the planet gear and the teeth of the inner gear ring in the star gear pair are all herringbone teeth, the sun gear is integrated, an involute spline is arranged in the sun gear, the sun gear is connected with an input shaft through the spline, the inner gear ring is formed by an upper gear ring and a lower gear ring in a combined installation mode, and the fixing gear and the inner gear ring are assembled so that torque output can be achieved. Due to the fact that the herringbone teeth are adopted, the transmission contact ratio is high, and transmission stability, the uniform load performance and the capacity for outputting torque are high; the planet gear is combined, elastic supporting of the planet gear is achieved, transmission stability of a star gear system is improved, and noise is lowered; because combined installation is adopted for the inner gear ring of the reducer and the inner gear ring is provided with the fixing ring in a matched mode, the inner gear ring torque output function is achieved. The star type herringbone gear reducer has the advantages of being simple in structure and convenient and fast to install. The star type herringbone gear reducer is suitable for engine reducers, and especially suitable for high-power engine reducers.

Description

technical field [0001] The invention relates to a gear transmission device, in particular to a star-shaped herringbone gear reducer. It belongs to the field of gear structure transmission. Background technique [0002] Star gear transmission is a power split gear transmission commonly used in aero-engines. Its transmission route is from the input of the sun gear to the output of the ring gear through the planetary gear, and it relies on multiple planetary gears to realize the power split transmission of the gear train. Star gear transmission uses multiple planetary gears to share the load in structure to form power split, which has the characteristics of small size, light weight, strong bearing capacity and high reliability. Compared with the planetary gear transmission, because it all adopts the fixed shaft gear train, the strength, rigidity and working reliability of the system are higher. This transmission form is widely used in the reducer in the aero-engine body. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/08F16H57/028
CPCF16H1/32F16H1/2809F16H57/023F16H57/08F16H2001/327
Inventor 王三民张冲王艺杰黄涛邓文奎王剑
Owner NORTHWESTERN POLYTECHNICAL UNIV
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