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Adjust the transmission

A technology for transmission devices and transmission components, applied in the direction of transmission devices, belts/chains/gears, mechanical equipment, etc., can solve problems such as waste wave generators

Active Publication Date: 2021-11-05
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of the conical toothing is complex and requires precise axial positioning of the wave generator

Method used

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  • Adjust the transmission
  • Adjust the transmission

Examples

Experimental program
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Embodiment Construction

[0019] The harmonic drive, designated as a whole by the reference number 1 , is designed for use in a device for adjusting the compression ratio of a reciprocating piston engine in a motor vehicle. In this case, the rigid transmission member 2 configured as a ring gear is firmly connected to the cylinder block of the internal combustion engine. Reference numeral 3 designates a shaft, ie an eccentric shaft, which serves as the output element of the harmonic drive 1 and cooperates with the secondary connecting rod of the crank linkage of the internal combustion engine.

[0020] The toothed region 4 of the harmonic drive 1 represents a torque-transmitting connection between the rigid transmission component 2 and the flexible transmission component 5 .

[0021] In order to deform the flexible drive member 5 during operation of the harmonic drive 1 , a wave generator 6 is provided. The axis of rotation of the wave generator 6 is identical to the axis of rotation denoted R of the e...

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PUM

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Abstract

A harmonic transmission device comprising an inherently rigid transmission element (2) and a flexible transmission element (5) cooperating with the rigid transmission element, said rigid transmission element having an internal toothing (14) concentric with the axis of rotation (R) ), the flexible transmission element has an external toothing (13), wherein a wave generator (6) with an outer ring (9) is provided for deforming the flexible transmission element. The outer ring (9) of the wave generator (6) is offset relative to the toothing (13, 14) in the axial direction.

Description

technical field [0001] The invention relates to an adjusting drive for a motor vehicle, which has a harmonic drive with an inherently rigid drive element and a flexible drive element which cooperates directly with the rigid drive element, wherein the rigid drive element The internal toothing concentric with the axis of rotation of the harmonic drive meshes with the external toothing of the flexible transmission element, and in order to deform the flexible transmission element a wave generator is provided which has an outer ring which The ring transmits radial forces—with respect to the mentioned axis of rotation—to the flexible transmission element. Background technique [0002] A harmonic drive is known, for example, from EP 0 514 829 B1. The harmonic drive has a pot-shaped flexible drive element, which in this case is referred to as a deformable toothed part. In this case harmonic drives, known as stress wave drives, are suitable for use in robots. [0003] Another harm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H49/00
CPCF16H49/001F16H2049/003
Inventor 托马斯·尼海姆埃尔
Owner SCHAEFFLER TECH AG & CO KG