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friction power transfer device

A technology of power transmission device and planet carrier, which is applied in the direction of friction transmission device, transmission device, transmission device parts, etc., can solve the problems of long wiring, limited installation position of friction power transmission device, etc., and achieves simple structure and easy connection. Effect

Active Publication Date: 2018-06-26
NIDEC SHIMPO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, not only the wiring becomes longer, but also there may be a problem that the installation position of the friction power transmission device may be limited in consideration of the detour of the wiring.

Method used

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Examples

Experimental program
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Embodiment Construction

[0030] figure 1 It is a longitudinal cross-sectional view showing the structure of the frictional power transmission device 1 according to an exemplary embodiment of the present invention. exist figure 1 In , a cross section of a plane including the central axis J1 of the frictional power transmission device 1 is shown. The frictional power transmission device 1 is used, for example, as a speed reducer in precision machining equipment, 3D measurement equipment, and the like.

[0031] The frictional power transmission device 1 includes a housing 2 , a first rotating body 3 , a second rotating body 4 , an inner ring 5 and an encoder 8 . The casing 2 has a substantially cylindrical shape centered on the central axis J1. The casing 2 includes a first casing 21 and a second casing 22 . The first housing 21 is in figure 1 The center has a substantially cylindrical shape centered on the central axis J1 facing the up-down direction. The second housing 22 has a substantially cyli...

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PUM

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Abstract

The invention provides a friction power transmission device, and the device comprises a housing, a first rotating body, a first bearing, and a second rotating body. The second rotating body and the first rotating body carry out power transmission through friction. The device also comprises a second bearing, an annular inner ring, and a coder. The first rotating body is provided with a first rotating shaft part and a solar roller. The second rotating body is provided with a plurality of planetary rollers, a planetary rack part, and a second rotating shaft part. The plurality of planetary rollers are pressed towards the solar roller through the elastic deformation of the inner ring. The planetary rack part is provided with a first planetary rack located at an output side, a second planetary rack located at an input side, and a connection part which connects the first and second planetary racks in an axial direction. The rotating part of the coder is provided with the second planetary rack.

Description

technical field [0001] The invention relates to a friction power transmission device. Background technique [0002] Conventionally, there is a friction power transmission device that presses a plurality of planetary rollers against the outer peripheral surface of the sun roller and transmits power by friction between the rollers. In the frictional power transmission device, vibration and noise caused by backlash are reduced compared to a gear transmission mechanism that meshes a plurality of gears. [0003] In the reduction gear transmission disclosed in Japanese Laid-Open Patent Publication No. 2003-301905, a speed detection mechanism is provided. The speed detection mechanism has a pulse disc and a photodetector including a light projector and a light receiver. The pulse disc is fixed to the side of the planetary carrier that supports the planetary rollers. An output shaft is fixed at the planet carrier. [0004] In the reduction gear transmission disclosed in Japanese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H13/08F16H57/08F16H57/02
CPCF16H13/08F16H57/02F16H57/082
Inventor 今村正
Owner NIDEC SHIMPO CORP