Two-time power dividing transmission system configuration

A transmission system and configuration technology, which is applied to transmissions, transmission parts, gear transmissions, etc., can solve problems such as the reduction of transmission efficiency of planetary reducers, and achieve the effect of achieving load sharing, easy implementation, and favorable deformation coordination.

Inactive Publication Date: 2018-01-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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Problems solved by technology

For a multi-stage transmission system containing planetary gear transmission, the allowable range of transmission ratio of planetary gear transmission is restricted by both structure and strength; at the same time, an excessive transmission ratio reduces the transmission efficiency of the planetary reducer

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  • Two-time power dividing transmission system configuration
  • Two-time power dividing transmission system configuration
  • Two-time power dividing transmission system configuration

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Embodiment Construction

[0016] A configuration of a two-way power split transmission system proposed by the present invention will be described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "bottom" etc. is based on the orientation or positional relationship shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. It does not indicate the importance of components, so it should not be construed as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the pr...

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Abstract

The invention discloses a two-time power dividing transmission system configuration which comprises a power input part and a power output part. At the input stage, surface gears are adopted for dividing transmission, meanwhile, reversing and power dividing are achieved, one-stage transmission in a whole transmission system is omitted, and the error generated by axial movement of the surface gearsnearly has no influence on transmission performance. Cylindrical gears are adopted for dividing and parallel operation transmission, the transmission ratio is large, and flexibility is good. Only a pair of gears on the cylindrical gears is adopted for power dividing, the structure is simple, the design space is large, moreover, when dual gear shafts all adopt the elastic shaft structures, the length of the dual gear shafts is large, flexibility is good, and deformation coordination and uniform load achievement are more facilitated. Two-time power dividing transmission is adopted, and thus theload borne by the gears is reduced, so that the sizes of the gears are decreased, and the line speed of the gears is decreased. The transmission system all adopts simple fixed-shaft gear trains for transmission, and thus achievement is easy in technology. The transmission configuration can be widely applied to the fields such as medium-heavy helicopter transmission systems and ship transmission systems.

Description

technical field [0001] The invention belongs to the technical field of helicopter transmission configurations, in particular to a configuration of a two-time power split transmission system. Background technique [0002] The typical configuration of the helicopter main reducer transmission system is "bevel gear reversing-parallel-planetary transmission output". From the input of the engine to the output of the main rotor, it is generally composed of 3 to 5 stages of gear transmission. In most cases, the planetary transmission is used as the last stage, and two-stage planetary transmission or compound planetary transmission is also used. For a multi-stage transmission system with planetary gear transmission, the allowable range of the transmission ratio of the planetary gear transmission is restricted by both structure and strength; at the same time, an excessive transmission ratio reduces the transmission efficiency of the planetary reducer. Therefore, in order to meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/22F16H57/023
Inventor 靳广虎鲍和云陆凤霞朱如鹏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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