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Transmission

A transmission and retainer technology, applied in the direction of belts/chains/gears, mechanical equipment, transmission devices, etc., can solve problems such as shortened life of balls

Inactive Publication Date: 2005-12-14
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, if there is a step caused by the inlet plug on the rolling surface, it will shorten the life of the ball

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] refer to figure 1 , figure 2 A shaft swing type ball reducer (hereinafter simply referred to as a "ball reducer") according to a preferred embodiment of the present invention will be described. Such as figure 1 As shown, the basic structure of this ball reducer is composed of a first outer roller (first roller) 10 , a second outer roller (second roller) 20 and an inner roller (third roller) 30 . In this embodiment, the first outer roller 10 is an input shaft, one of the second outer roller 20 and the inner roller 30 is an output shaft, and the other is a fixed shaft.

[0033] Such as figure 2 As shown in the exploded view of , the first outer roller 10 includes a first cylindrical body 11 near the input side and a second cylindrical body 12 with a smaller diameter and closer to the output side. The first repetition number K is formed on the outer diameter portion of the second cylindrical body 12 S The first groove 12A extends in the circumferential direction. T...

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PUM

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Abstract

The transmission of the present invention includes: a first outer roller (10) having a first repetition number of first grooves (12A) along the circumferential direction on the outer peripheral surface of a first shaft body with a circular cross section; The second outer roller (20) having second grooves (22A) whose repetition number is a second repetition number different from the first repetition number along the circumferential direction on the outer peripheral surface of the second shaft body has a second groove (22A) on the inner diameter surface along the circumferential direction. A cylindrical inner roller (30) having a plurality of grooves (30A) extending in the axial direction at intervals. The first outer roller (10) and the second outer roller (20) are respectively connected with a plurality of balls (32) in the first groove (12A) and a plurality of balls (32) in the second groove (22A). The inner rollers (30) are opposite.

Description

technical field [0001] The present invention relates to transmissions, in particular to ball transmissions. Background technique [0002] There are various types of proposals for such transmissions, a few examples of which are described below. [0003] The first example is a speed reducer with the following components: an input rotary shaft; first and second annular cam grooves, which are spaced apart along the axial centerline direction on the outer peripheral surface of the input rotary shaft, and respectively take the axial centerline direction as the longitudinal axis, It is formed by bending a periodic function with the circumferential direction as the horizontal axis; the cylindrical body is installed on the outside of the input rotation shaft, and rotates freely concentrically with the input rotation shaft; the third annular cam groove and the fourth annular cam groove , the former is formed by bending at the portion of the inner peripheral surface of the cylinder op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/06
CPCF16H25/06
Inventor 左川雅弘
Owner SUMITOMO HEAVY IND LTD