JPS5950900U

JPS5950900U - Rotary blade pitch conversion device

Info

Publication number: JPS5950900U
Application number: JP1982147669U
Authority: JP
Inventors: 小原　瑛; 徳江　林三; 佳史川上
Original assignee: Sumitomo Precision Products Co Ltd; Society of Japanese Aerospace Companies
Current assignee: Sumitomo Precision Products Co Ltd; Society of Japanese Aerospace Companies
Priority date: 1982-09-28
Filing date: 1982-09-28
Publication date: 1984-04-04
Also published as: JPS6322160Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案による回転翼のピッチ変換装置の要部
縦断面図である。第２図は第１図の■−■線矢視よりの
カムディスクの詳細な正面図である。図中、１・・・ブレード、２・・・ナツト、３・・・ハ
ブ、４・・・ボールスクリュー、５・・・シャフト、６
・・・嵌合子、７・・・ローラ、８・・・カムディスク
、９・・・カム、１０・・・トルク伝達軸、１１・・・
ハブ駆動ギア、１２・・・カバー、１３・・・固定ケー
シング、１４・・・電気サーボモーター、Ａ・・・ウオ
ーム、Ｂ・・・キャリア、Ｂ、・・・ウオームホイール
、Ｃ・・・遊星歯車、ｂ・・・内接ギア、Ｄｌ、Ｄ２・
・・歯面、Ｅ・・・第１固定遊星歯車、Ｆ・・・第１太
陽歯車、Ｇ・・・第１太陽歯車、Ｈ・・・第３太陽歯車
、■・・・第２固定遊星歯車、Ｊ・・・第４太陽歯車、
Ｊｌ・・・内接ギア、Ｊ２・・・外接ギア、Ｋ・・・第
３太陽歯車、Ｌ・・・内接ギア。FIG. 1 is a longitudinal cross-sectional view of a main part of a rotor blade pitch conversion device according to this invention. FIG. 2 is a detailed front view of the cam disk taken along the line ■--■ in FIG. 1. In the figure, 1...Blade, 2...Nut, 3...Hub, 4...Ball screw, 5...Shaft, 6
...Mating element, 7...Roller, 8...Cam disc, 9...Cam, 10...Torque transmission shaft, 11...
Hub drive gear, 12... Cover, 13... Fixed casing, 14... Electric servo motor, A... Worm, B... Carrier, B... Worm wheel, C... Planet Gear, b...Internal gear, Dl, D2.
...Tooth surface, E...First fixed planet gear, F...First sun gear, G...First sun gear, H...Third sun gear, ■...Second fixed planet Gear, J... 4th sun gear,
Jl...internal gear, J2...external gear, K...third sun gear, L...internal gear.

Claims

[Scope of utility model registration request]

A ball screw consisting of a nut constituting the blade shaft, a shaft that is supported by the hub so that it can move linearly and has a fitting at the end that is restrained by the cam of the cam disk, and a ball screw that is rotatably mounted on the outer periphery of the hollow shaft inside the hub. a cam disk that is fitted and has a protruding cam on its end face for linearly moving the shaft and an internal gear; and a third fixed planet that is supported within the hub and meshes with the internal gear of the cam disk. A gear, a torque transmission shaft that is inserted through the hollow shaft of the knob 1 and is pivotally supported on the hub, and a second sun gear and a third sun gear are fitted on both ends, and a torque transmission shaft that is pivotally supported on the hub and is pivotally supported on the hub. a second fixed planetary gear that meshes with each other;
The second,
A carrier that has a fourth sun gear that meshes with each of the third fixed planetary gears, a worm wheel that meshes with a worm rotationally driven by a servo motor, and pivotally supports the planetary gear that meshes with the second sun gear. a first sun gear fixed to the hub; a first fixed planetary gear pivotally supported by a fixed casing and meshing with the first sun gear; A pitch conversion device for a rotor blade, which is composed of an internal gear having a tooth surface that meshes with each of the planetary gears.