JPS5828149U - Planetary roller type power transmission device - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の転がり伝動式遊星ローラ減速機の縦断面
図、第２図ａ、　　ｂは第１図における内ローラの半断
面図と縦断面図であり、同図ａは押付力付与前を、同図
すは押付力付与時をそれぞれ表わしている。第３図は第
１図及び第２図ａ、　ｂに示した内ローラにおける押付
力と半径方向変形量との関係を示す線図である。第４図
ａ、　　ｂは本考案に係る遊星ローラ式動力伝達装置の
１実施例における内ローラの部分断面図であり、同図ａ
は押付力付与前を、同図すは押付力付与時をそれぞれ表
わしている。第５図ａ、　　ｂ、　　ｃは本考案の１一
実施例における内ローラの具体的断面形状を示す。 第６図は本考案の１実施例の内ローラと従来のものにお
ける圧接力とシム量との関係を示す線図、第７図及び第
８図は本考案の他の実施例を示す縦断面図で、第７図は
太陽ローラを、第８図は遊星ローラを弾性ローラとした
場合をそれぞれ示す。 図面中、１は入力軸、２．２′は太陽ローラ、３は出力
軸、７．７′は遊星ローラ、９．９’。 ９０は内ローラ、９ａ、　　２ａ、７ａは薄肉円筒部、
ｇｂ、２ｂ、７ｂは厚肉円筒部、９　ｃ　／　、　２ｃ
　／。 ７Ｃ′は薄肉円板部である。Figure 1 is a longitudinal cross-sectional view of a conventional rolling transmission type planetary roller reducer, Figures 2 a and b are a half cross-sectional view and a longitudinal cross-sectional view of the inner roller in Figure 1, and figure a is before applying a pressing force. , and the figures respectively show the state when pressing force is applied. FIG. 3 is a diagram showing the relationship between the pressing force and the amount of radial deformation in the inner roller shown in FIGS. 1 and 2a and 2b. 4a and 4b are partial cross-sectional views of the inner roller in one embodiment of the planetary roller type power transmission device according to the present invention, and FIG.
1 shows the state before the pressing force is applied, and the figure shows the state when the pressing force is applied, respectively. FIGS. 5a, 5b, and 5c show specific cross-sectional shapes of the inner roller in an eleventh embodiment of the present invention. Fig. 6 is a diagram showing the relationship between the pressure contact force and the amount of shim between the inner roller of one embodiment of the present invention and the conventional roller, and Figs. 7 and 8 are longitudinal sections showing other embodiments of the present invention. In the figures, FIG. 7 shows the case where the sun roller is used, and FIG. 8 shows the case where the planetary roller is used as an elastic roller. In the drawing, 1 is an input shaft, 2.2' is a sun roller, 3 is an output shaft, 7.7' is a planetary roller, and 9.9'. 90 is an inner roller, 9a, 2a, 7a are thin cylindrical parts,
gb, 2b, 7b are thick cylindrical parts, 9c/2c
/. 7C' is a thin disk portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一方の回転軸に連結された太陽ローラの外周と静止部材
に固定された内ローラの内周との間に他方の回転軸に連
結されるキャリヤに軸支された複数個の遊星ローラを配
設し゛ζ上記２本の回転軸間に動力を伝達するものにお
いて、上記太陽ローラ、遊星ローラ、内ローラのうち少
なくとも１つを、上記回転軸の軸方向に区切って形成さ
れた複数個の厚肉円筒部と、該厚肉円筒部よりも薄肉に
形成され内外周面の何れか一方が相手ローラとの当接面
とされる薄肉円筒部と、該薄肉円筒部の両側端と厚肉円
筒部とを個別に接続しかつ上記薄肉円筒部よりも薄肉に
形成された薄肉円板部とを具え、上記厚肉円筒部の両側
端を軸方向に押圧したとき薄肉円筒部の当接面が半径方
向に変位可能にされた弾性ローラとなしたことを特徴と
する遊星ローラ式動力伝達装置。A plurality of planetary rollers supported by a carrier connected to the other rotating shaft are arranged between the outer periphery of a sun roller connected to one rotating shaft and the inner periphery of an inner roller fixed to a stationary member. ζ In the device for transmitting power between the two rotating shafts, at least one of the sun roller, planetary roller, and inner roller is divided into a plurality of thick walls formed in the axial direction of the rotating shaft. a cylindrical portion, a thin cylindrical portion that is thinner than the thick cylindrical portion and has either an inner or outer peripheral surface serving as a contact surface with a mating roller, both ends of the thin cylindrical portion and a thick cylindrical portion; and a thin-walled disk portion formed thinner than the thin-walled cylindrical portion, and the abutment surfaces of the thin-walled cylindrical portions have a radius of A planetary roller type power transmission device characterized by having an elastic roller that can be displaced in any direction.