JPH032953U

JPH032953U -

Info

Publication number: JPH032953U
Application number: JP6434489U
Authority: JP
Priority date: 1989-05-31
Filing date: 1989-05-31
Publication date: 1991-01-11

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例にかか
り、第１図はトラクシヨンドライブユニツトを示
す一部破断の側面図、第２図は高速軸の斜視図、
第３図はトラクシヨンドライブユニツトの一使用
例を示す要部破断の側面図である。第４図ないし
第６図は本考案の他の実施例にかかり、いずれも
高速軸に対する樹脂製中間体の回り止め構造を示
す図である。また、第７図ないし第１０図は従来
例にかかり、第７図はトラクシヨンドライブユニ
ツトを示す一部破断の側面図、第８図は第７図の
−線断面矢視図、第９図は高速軸の斜視図、
第１０図は高速軸の案内溝および軸受装着面の研
磨状況を略示した模式図である。２…高速軸支持用軸受、３…低速軸支持用軸受
、４…入力軸、５…出力軸、１０…ユニツトケー
ス、２０…高速軸、２２…入出力軸結合用穴、２
４…案内溝、２５…軸受装着面、２６…凹入部、
３０…低速軸、４０…遊星ローラ、８０…中間体
。 1 to 3 show an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view showing the traction drive unit, FIG. 2 is a perspective view of the high-speed shaft,
FIG. 3 is a side view showing an example of use of the traction drive unit, with main parts broken away. FIGS. 4 to 6 relate to other embodiments of the present invention, and all of them are diagrams showing a structure for preventing rotation of a resin intermediate body with respect to a high-speed shaft. 7 to 10 relate to the conventional example, and FIG. 7 is a partially cutaway side view showing the traction drive unit, FIG. 8 is a sectional view taken along the line - in FIG. 7, and FIG. is a perspective view of the high-speed axis,
FIG. 10 is a schematic diagram schematically showing the polishing state of the guide groove of the high-speed shaft and the bearing mounting surface. 2...Bearing for high speed shaft support, 3...Bearing for low speed shaft support, 4...Input shaft, 5...Output shaft, 10...Unit case, 20...High speed shaft, 22...Input/output shaft coupling hole, 2
4... Guide groove, 25... Bearing mounting surface, 26... Recessed part,
30...Low speed shaft, 40... Planetary roller, 80... Intermediate body.

Claims

[Claims for Utility Model Registration] A fixed ring, a high-speed shaft and a low-speed shaft that are inserted into the inner circumferential portion of the fixed ring from both left and right open ends in abutting state and supported via rolling bearings, and the fixed ring. A traction drive unit comprising a plurality of planetary rollers that are press-fitted between the inner circumferential surface of a ring and the shaft end of a high-speed shaft so as to be frictionally rotatable and rotatably held on the shaft end of a low-speed shaft, A recess that opens outward is formed in the inner circumference of the bearing mounting surface of the high-speed shaft, and a resin intermediate body is provided in the recess so as to be relatively unrotatable within the recess. The intermediate body is provided with an input/output shaft coupling hole centered with respect to either the rolling surface of the planetary roller or the bearing mounting surface, and one of the input shaft or the output shaft is inserted into this hole for relative rotation. A traction drive unit characterized in that the traction drive unit is configured to be fitted in an unmovable and removable manner.